/* ============================================================
   MPI Jaringan Komputer — Style Sheet (Refined to Template PDF)
   Design System: Informatika Fase D (Teal / Cyan / Blue Palette)
   ============================================================ */

/* ---------- Local Fonts (100% Offline Ready) ---------- */
@import url('assets/fonts/fonts.css');

/* ---------- Design Tokens ---------- */
:root {
  --teal: #00ACC1;
  --cyan-med: #4DD0E1;
  --cyan-light: #E0F7FA;
  --blue: #0288D1;
  --teal-dark: #006064;
  --teal-deep: #004d40;
  --white: #ffffff;
  --text-dark: #1e293b;
  --text-body: #334155;
  --text-muted: #64748b;
  --shadow: rgba(0, 0, 0, 0.18);
  --shadow-lg: rgba(0, 0, 0, 0.25);
  --shadow-light: rgba(0, 0, 0, 0.08);

  --font-heading: 'Fredoka', 'Nunito', 'Segoe UI', 'Arial Rounded MT Bold', sans-serif;
  --font-body: 'Poppins', 'Nunito', 'Segoe UI', sans-serif;

  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --radius-pill: 999px;

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  width: 100%;
  height: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--text-dark);
  overflow: hidden;
  width: 100%;
  height: 100%;
  background: #e8ddd3;
  user-select: none;
  -webkit-user-select: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button {
  cursor: pointer;
  font-family: inherit;
  border: none;
  outline: none;
  background: transparent;
}

ul,
ol {
  list-style: none;
}

a {
  text-decoration: none;
  color: inherit;
}

/* ---------- App Stage Container ---------- */
#app {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.classroom-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
  background-color: #f0e6dc;
  background-image: url('assets/bg_berpikir_komputasional_v3.png');
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
}

.classroom-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--bg-overlay, rgba(255, 255, 255, 0.40));
  pointer-events: none;
}

.classroom-bg svg {
  width: 100%;
  height: 100%;
  display: none;
  /* Shown as fallback if background image not available */
}

.classroom-bg.use-svg svg {
  display: block;
}

/* ---------- Page System (SPA) ---------- */
.page {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px 40px;
  opacity: 0;
  pointer-events: none;
  transform: scale(0.96);
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.page.active {
  opacity: 1;
  pointer-events: auto;
  transform: scale(1);
  z-index: 2;
}

/* ---------- Navigation Buttons (2x Larger & Super Prominent) ---------- */

/* Top-Left Button: MENU & BERANDA */
.nav-top {
  position: absolute;
  top: 24px;
  left: 32px;
  z-index: 30;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  user-select: none;
  transition: transform var(--transition);
}

.nav-top .nav-circle {
  width: 82px;
  height: 82px;
  border-radius: 50%;
  background: var(--teal);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 40px;
  font-weight: 800;
  box-shadow: 0 6px 20px var(--shadow-lg);
  border: 4px solid var(--white);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.nav-top .nav-label {
  background: var(--white);
  color: var(--teal-dark);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 26px;
  padding: 12px 30px;
  border-radius: var(--radius-pill);
  box-shadow: 0 6px 18px var(--shadow);
  letter-spacing: 0.8px;
  border: 2.5px solid rgba(0, 172, 193, 0.25);
  cursor: pointer;
  user-select: none;
  transition: all var(--transition);
}

/* Unified Hover State: When hovering anywhere on .nav-top (icon OR text) */
.nav-top:hover .nav-circle {
  background: var(--teal-dark);
  transform: scale(1.1);
  box-shadow: 0 8px 24px var(--shadow-lg);
}

.nav-top:hover .nav-label {
  background: #f0fdfa;
  color: var(--teal-dark);
  border-color: var(--teal);
  transform: translateX(4px) scale(1.03);
  box-shadow: 0 8px 24px rgba(0, 172, 193, 0.32);
}

/* Unified Active State */
.nav-top:active .nav-circle {
  transform: scale(0.96);
}

.nav-top:active .nav-label {
  transform: translateX(2px) scale(0.98);
}

/* ---------- Top-Right Controls Bar (Zoom & Shortcut Materi) ---------- */
.top-controls-right {
  position: fixed;
  top: 24px;
  right: 32px;
  z-index: 100;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  user-select: none;
  pointer-events: auto;
  transition: all var(--transition);
}

.top-controls-right.on-cover {
  top: auto;
  bottom: 24px;
  right: 32px;
}

/* Symmetrical Top-Right MATERI Button */
.nav-btn-materi {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  user-select: none;
  transition: transform var(--transition);
}

.nav-btn-materi .nav-circle {
  width: 82px;
  height: 82px;
  border-radius: 50%;
  background: var(--teal);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 38px;
  font-weight: 800;
  box-shadow: 0 6px 20px var(--shadow-lg);
  border: 4px solid var(--white);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.nav-btn-materi .nav-label {
  background: var(--white);
  color: var(--teal-dark);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 26px;
  padding: 12px 30px;
  border-radius: var(--radius-pill);
  box-shadow: 0 6px 18px var(--shadow);
  letter-spacing: 0.8px;
  border: 2.5px solid rgba(0, 172, 193, 0.25);
  cursor: pointer;
  user-select: none;
  transition: all var(--transition);
}

.nav-btn-materi:hover .nav-circle {
  background: var(--teal-dark);
  transform: scale(1.1);
  box-shadow: 0 8px 24px var(--shadow-lg);
}

.nav-btn-materi:hover .nav-label {
  background: #f0fdfa;
  color: var(--teal-dark);
  border-color: var(--teal);
  transform: translateX(-4px) scale(1.03);
  box-shadow: 0 8px 24px rgba(0, 172, 193, 0.32);
}

.nav-btn-materi:active .nav-circle {
  transform: scale(0.96);
}

.nav-btn-materi:active .nav-label {
  transform: translateX(-2px) scale(0.98);
}

/* Zoom Widget */
.zoom-widget {
  display: inline-flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 2.5px solid rgba(0, 172, 193, 0.35);
  border-radius: var(--radius-pill);
  box-shadow: 0 6px 18px var(--shadow);
  padding: 6px 8px;
  gap: 6px;
  user-select: none;
  transition: all var(--transition);
}

.zoom-widget:hover {
  border-color: var(--teal);
  box-shadow: 0 8px 24px rgba(0, 172, 193, 0.3);
}

.zoom-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--teal);
  color: var(--white);
  font-size: 24px;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2.5px solid var(--white);
  box-shadow: 0 3px 10px rgba(0, 172, 193, 0.35);
  cursor: pointer;
  line-height: 1;
  transition: transform var(--transition), background var(--transition);
}

.zoom-btn:hover {
  background: var(--teal-dark);
  transform: scale(1.12);
}

.zoom-btn:active {
  transform: scale(0.92);
}

.zoom-level-text {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 800;
  color: var(--teal-dark);
  padding: 4px 10px;
  min-width: 62px;
  text-align: center;
  cursor: pointer;
  border-radius: var(--radius-pill);
  transition: all var(--transition);
  background: transparent;
  border: none;
}

.zoom-level-text:hover {
  background: #e0f7fa;
  color: var(--teal-deep);
  transform: scale(1.05);
}

/* Bottom Navigation Arrows (◀ / ▶ - Extra Large & Ultra Tactile) */
.nav-bottom {
  position: absolute;
  bottom: 22px;
  z-index: 30;
}

.nav-bottom.left {
  left: 32px;
}

.nav-bottom.right {
  right: 32px;
}

.nav-arrow {
  width: 104px;
  height: 104px;
  border-radius: 50%;
  background: var(--teal);
  color: var(--white);
  font-size: 52px;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.28);
  border: 5px solid var(--white);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.nav-arrow:hover {
  background: var(--teal-dark);
  transform: scale(1.12);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.35);
}

.nav-arrow:active {
  transform: scale(0.95);
}

/* Compound Navigation Button (Bottom Left Prev & Bottom Right Next) */
.nav-bottom.nav-materi-compound {
  display: flex;
  align-items: center;
  gap: 14px;
  z-index: 35;
  cursor: pointer;
  user-select: none;
  transition: transform var(--transition);
}

.nav-bottom.left.nav-materi-compound {
  left: 32px;
}

.nav-bottom.right.nav-materi-compound {
  right: 32px;
}

.nav-materi-label {
  display: flex;
  flex-direction: column;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 10px 22px;
  border-radius: var(--radius-pill);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.16);
  border: 2.5px solid var(--teal);
  cursor: pointer;
  user-select: none;
  transition: all 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  max-width: 380px;
}

/* Unified Hover State for Left (Prev) Compound Nav */
.nav-bottom.left.nav-materi-compound:hover .nav-arrow {
  background: var(--teal-dark);
  transform: scale(1.12);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.35);
}

.nav-bottom.left.nav-materi-compound:hover .nav-materi-label {
  transform: translateX(6px) scale(1.03);
  box-shadow: 0 12px 28px rgba(0, 172, 193, 0.32);
  border-color: var(--teal-dark);
  background: #f0fdfa;
}

/* Unified Hover State for Right (Next) Compound Nav */
.nav-bottom.right.nav-materi-compound:hover .nav-arrow {
  background: var(--teal-dark);
  transform: scale(1.12);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.35);
}

.nav-bottom.right.nav-materi-compound:hover .nav-materi-label {
  transform: translateX(-6px) scale(1.03);
  box-shadow: 0 12px 28px rgba(0, 172, 193, 0.32);
  border-color: var(--teal-dark);
  background: #f0fdfa;
}

/* Unified Hover State for Finish (Selesai/Kembali ke Beranda) */
.nav-bottom.right.nav-materi-compound:hover .nav-materi-label.finish {
  border-color: #e65100;
  background: linear-gradient(135deg, #fff3e0 0%, #ffcc80 100%);
  box-shadow: 0 14px 30px rgba(245, 127, 23, 0.45);
}

.nav-bottom.right.nav-materi-compound:has(.finish):hover .nav-arrow {
  background: #e65100;
  box-shadow: 0 14px 34px rgba(230, 81, 0, 0.45);
}

/* Unified Active State */
.nav-bottom.nav-materi-compound:active .nav-arrow {
  transform: scale(0.95);
}

.nav-bottom.left.nav-materi-compound:active .nav-materi-label {
  transform: translateX(2px) scale(0.97);
}

.nav-bottom.right.nav-materi-compound:active .nav-materi-label {
  transform: translateX(-2px) scale(0.97);
}

.nav-materi-label .nml-sub {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.8px;
  color: var(--teal-dark);
  text-transform: uppercase;
}

.nav-materi-label .nml-main {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 800;
  color: var(--text-dark);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav-materi-label.right {
  text-align: right;
  border-color: var(--teal);
  background: rgba(255, 255, 255, 0.96);
}

.nav-materi-label.right .nml-sub {
  color: var(--teal-dark);
}

.nav-materi-label.right .nml-main {
  color: var(--text-dark);
}

.nav-materi-label.finish {
  border-color: #f57f17;
  background: linear-gradient(135deg, #fff8e1 0%, #ffe082 100%);
  animation: pulseFinish 1.8s infinite;
}

.nav-materi-label.finish .nml-sub {
  color: #e65100;
}

.nav-materi-label.finish .nml-main {
  color: #bf360c;
}

@keyframes pulseFinish {
  0% {
    box-shadow: 0 0 0 0 rgba(245, 127, 23, 0.4);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(245, 127, 23, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(245, 127, 23, 0);
  }
}

/* MULAI Button (Large & Tactile) */
.btn-mulai {
  display: inline-flex;
  align-items: center;
  gap: 20px;
  background: var(--white);
  padding: 14px 48px 14px 18px;
  border-radius: var(--radius-pill);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.28);
  border: 4px solid rgba(0, 172, 193, 0.4);
  transition: transform var(--transition), box-shadow var(--transition);
}

.btn-mulai:hover {
  transform: translateY(-4px) scale(1.04);
  box-shadow: 0 14px 38px rgba(0, 0, 0, 0.35);
}

.btn-mulai:active {
  transform: translateY(0) scale(0.98);
}

.btn-mulai .play-icon {
  width: 66px;
  height: 66px;
  border-radius: 50%;
  background: var(--teal);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  box-shadow: 0 4px 14px rgba(0, 172, 193, 0.45);
}

.btn-mulai .mulai-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 36px;
  color: var(--teal);
  letter-spacing: 2px;
}

/* ---------- Title Bar (Clean Top Capsule) ---------- */
.title-bar {
  background: var(--teal);
  color: var(--white);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 34px;
  padding: 12px 52px;
  border-radius: var(--radius-pill);
  display: inline-block;
  box-shadow: 0 6px 18px var(--shadow);
  border: 3.5px solid var(--white);
  position: relative;
  z-index: 10;
  margin-top: 0;
  margin-bottom: 18px;
  letter-spacing: 0.5px;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

/* ---------- Content Box (Large, High Contrast, Dashed Cyan Border) ---------- */
.content-box {
  background: rgba(224, 247, 250, 0.88);
  border: 4px dashed var(--teal);
  border-radius: var(--radius-lg);
  padding: 30px 44px 26px;
  width: 92%;
  max-width: 1380px;
  min-height: 480px;
  max-height: calc(100vh - 230px);
  position: relative;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: 0 10px 36px var(--shadow);
  display: flex;
  flex-direction: column;
}

.content-box.wide {
  max-width: 1420px;
}

.content-box.narrow {
  max-width: 900px;
}

.content-box p {
  font-size: 20px;
  line-height: 1.75;
  color: var(--text-body);
  margin-bottom: 12px;
}

.content-box strong {
  color: var(--text-dark);
}

.content-box ol,
.content-box ul {
  font-size: 20px;
  line-height: 1.75;
  color: var(--text-body);
  margin-left: 24px;
}

.content-box ol {
  list-style: decimal outside;
}

.content-box ul {
  list-style: disc outside;
}

.content-box ol li,
.content-box ul li {
  margin-bottom: 10px;
  padding-left: 6px;
}

/* Two-column layout */
.content-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: stretch;
  flex: 1;
}

.content-col {
  background: rgba(255, 255, 255, 0.75);
  border: 2px solid rgba(0, 172, 193, 0.25);
  border-radius: var(--radius-md);
  padding: 26px 28px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 4px 14px var(--shadow-light);
}

.content-col h3 {
  font-family: var(--font-heading);
  font-size: 24px;
  color: var(--teal-dark);
  margin-bottom: 14px;
}

.content-col p,
.content-col li {
  font-size: 19px;
  line-height: 1.7;
}

/* Image + text layout */
.content-img-text {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 36px;
  align-items: center;
  flex: 1;
}

.content-img-text .img-placeholder {
  width: 100%;
  aspect-ratio: 1;
  background: linear-gradient(135deg, #81d4fa 0%, #4dd0e1 50%, #a5d6a7 100%);
  border-radius: var(--radius-md);
  border: 3px solid var(--white);
  box-shadow: 0 8px 24px var(--shadow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 72px;
}

.content-img-box {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 3.5px solid var(--white);
  box-shadow: 0 8px 24px var(--shadow);
  display: flex;
  align-items: center;
  justify-content: center;
  background: #e0f7fa;
}

.content-img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ---------- Sticker Text (Cover Heading & Section Titles) ---------- */
.sticker-text {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--teal);
  text-shadow:
    -3px -3px 0 var(--white),
    3px -3px 0 var(--white),
    -3px 3px 0 var(--white),
    3px 3px 0 var(--white),
    -4px 0 0 var(--white),
    4px 0 0 var(--white),
    0 -4px 0 var(--white),
    0 4px 0 var(--white),
    0 8px 16px rgba(0, 0, 0, 0.22);
  line-height: 1.2;
}

/* ---------- Logo Containers (Header & Footer) ---------- */
.logo-top {
  position: absolute;
  top: 16px;
  z-index: 25;
}

.logo-top.left {
  left: 32px;
}

.logo-top.right {
  right: 32px;
}

.logo-top img {
  height: 165px;
  max-width: 800px;
  width: auto;
  background: transparent;
  border-radius: 0;
  padding: 0;
  box-shadow: none;
  border: none;
  object-fit: contain;
  filter: drop-shadow(0 6px 18px rgba(0, 0, 0, 0.18));
}

.logo-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  flex-wrap: wrap;
  padding: 14px 24px;
}

.logo-row img {
  height: 90px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.1));
}

/* ---------- Badge FASE D (Cover Sticky Note - Sleek Tape Design) ---------- */
.badge-fase {
  position: absolute;
  right: 60px;
  top: 52%;
  transform: translateY(-50%) rotate(5deg);
  z-index: 15;
  background: linear-gradient(135deg, #fffde7 0%, #fff9c4 100%);
  border: 3.5px solid #fbc02d;
  border-radius: 14px;
  padding: 22px 34px 18px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 34px;
  color: #e65100;
  box-shadow: 4px 12px 28px rgba(0, 0, 0, 0.24);
  text-align: center;
  line-height: 1.1;
}

.badge-fase::before {
  content: '';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%) rotate(-3deg);
  width: 72px;
  height: 22px;
  background: rgba(255, 255, 255, 0.88);
  border: 1.5px dashed rgba(251, 192, 45, 0.7);
  border-radius: 3px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
}

/* ---------- Menu Page Specifics (Vertically Centered) ---------- */
#page-menu {
  justify-content: center;
  align-items: center;
  padding: 20px 40px;
}

#page-menu .title-bar {
  margin-top: 0;
  margin-bottom: 26px;
  font-size: 44px;
  padding: 14px 72px;
}

/* ---------- Menu Cards Grid (2 Rows x 3 Columns) ---------- */
.menu-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  width: 100%;
  max-width: 1240px;
  margin-top: 0;
}

.menu-card {
  background: rgba(255, 255, 255, 0.86);
  border: 3.5px dashed var(--teal);
  border-radius: var(--radius-lg);
  padding: 22px 20px 20px;
  text-align: center;
  cursor: pointer;
  box-shadow: 0 6px 20px var(--shadow-light);
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 200px;
}

.menu-card:hover {
  transform: translateY(-8px) scale(1.03);
  box-shadow: 0 12px 30px var(--shadow);
  background: rgba(255, 255, 255, 0.98);
  border-color: var(--teal-dark);
}

.menu-card:active {
  transform: translateY(-2px) scale(0.99);
}

.menu-card .card-icon {
  font-size: 100px;
  margin-bottom: 12px;
  line-height: 1.05;
  display: block;
}

.menu-card .card-label {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 24px;
  color: var(--teal-dark);
  letter-spacing: 0.3px;
}

/* ---------- Petunjuk, Tujuan & Materi 1 Page Layout (Title Bar at Top) ---------- */
#page-petunjuk,
#page-tujuan,
#page-materi-1 {
  justify-content: center;
  align-items: center;
  padding: 16px 40px;
}

#page-petunjuk .title-bar,
#page-tujuan .title-bar {
  margin-top: -50px;
  margin-bottom: 20px;
}

#page-materi-1 .title-bar {
  margin-top: 0;
  margin-bottom: 20px;
}

/* ---------- Petunjuk Page Styles (Concise & Visual) ---------- */
.petunjuk-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  width: 100%;
  align-items: stretch;
}

.petunjuk-card {
  background: rgba(255, 255, 255, 0.88);
  border: 2.5px solid rgba(0, 172, 193, 0.35);
  border-radius: var(--radius-md);
  padding: 18px 22px;
  box-shadow: 0 4px 14px var(--shadow-light);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.petunjuk-card-title {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  color: var(--teal-dark);
  border-bottom: 2px solid rgba(0, 172, 193, 0.25);
  padding-bottom: 6px;
  margin-bottom: 2px;
}

.petunjuk-item {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav-mini-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--teal);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  border: 2px solid var(--white);
  box-shadow: 0 3px 8px rgba(0, 172, 193, 0.35);
  flex-shrink: 0;
}

.nav-mini-btn.play {
  background: linear-gradient(135deg, #e65100 0%, #ff8f00 100%);
  box-shadow: 0 3px 8px rgba(230, 81, 0, 0.35);
}

.nav-mini-num {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--teal) 0%, var(--teal-dark) 100%);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  border: 2px solid var(--white);
  box-shadow: 0 3px 8px rgba(0, 172, 193, 0.35);
  flex-shrink: 0;
}

.petunjuk-item strong {
  font-size: 17px;
  color: var(--teal-dark);
  display: block;
  margin-bottom: 1px;
}

.petunjuk-item p {
  font-size: 15px;
  color: var(--text-body);
  margin-bottom: 0;
  line-height: 1.35;
}

/* ---------- Tujuan Page Styles (Large & Prominent) ---------- */
.tujuan-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
}

.tujuan-item {
  display: flex;
  align-items: center;
  gap: 16px;
  background: rgba(255, 255, 255, 0.88);
  border: 2.5px solid rgba(0, 172, 193, 0.35);
  border-radius: var(--radius-md);
  padding: 10px 20px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  transition: transform var(--transition), border-color var(--transition), background var(--transition);
}

.tujuan-item:hover {
  transform: translateX(8px);
  border-color: var(--teal-dark);
  background: rgba(255, 255, 255, 0.98);
}

.tujuan-num {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--teal) 0%, var(--teal-dark) 100%);
  color: var(--white);
  font-family: var(--font-heading);
  font-size: 19px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 10px rgba(0, 172, 193, 0.35);
}

.tujuan-text {
  font-size: 18.5px;
  line-height: 1.4;
  color: var(--text-dark);
}

.tujuan-text strong {
  color: var(--teal-dark);
}

/* ---------- Materi Cards (Daftar Materi - 2x2 Vertical Cards Grid) ---------- */
#page-materi-list {
  justify-content: center;
  align-items: center;
  padding: 16px 40px;
}

#page-materi-list .title-bar {
  margin-top: -50px;
  margin-bottom: 25px;
  font-size: 40px;
  padding: 12px 64px;
}

.materi-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  width: 96%;
  max-width: 1440px;
  margin-top: 0;
}

.materi-card {
  background: rgba(255, 255, 255, 0.94);
  border: 3.5px dashed var(--teal);
  border-radius: 24px;
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
  box-shadow: 0 8px 24px var(--shadow-light);
  display: flex;
  flex-direction: column;
}

.materi-card:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: 0 16px 36px var(--shadow);
  border-color: var(--teal-dark);
}

.materi-card .card-thumb {
  width: 100%;
  height: 260px;
  background: #e2e8f0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: 20px 20px 0 0;
  position: relative;
}

.materi-card .card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

.materi-card:hover .card-thumb img {
  transform: scale(1.08);
}

.materi-card .card-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 5;
  color: var(--white);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 15px;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.28);
  border: 2px solid rgba(255, 255, 255, 0.9);
  letter-spacing: 0.4px;
}

.materi-card .card-body {
  padding: 16px 22px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  flex: 1;
}

.materi-card .card-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 24px;
  color: var(--teal-dark);
  text-align: center;
  line-height: 1.3;
  margin-bottom: 6px;
}

.materi-card .card-desc {
  font-family: var(--font-body);
  font-size: 16.5px;
  line-height: 1.45;
  color: #475569;
  text-align: center;
}

/* ---------- Materi 1 Tabs Navigation (Modern Sleek Pill Model) ---------- */
.materi-tabs-nav {
  display: flex;
  justify-content: center;
  gap: 12px;
  background: rgba(0, 172, 193, 0.1);
  padding: 6px 8px;
  border-radius: var(--radius-pill);
  border: 2px solid rgba(0, 172, 193, 0.3);
  margin-bottom: 14px;
  width: fit-content;
  align-self: center;
}

.materi-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 24px;
  border-radius: var(--radius-pill);
  border: none;
  background: transparent;
  color: var(--text-dark);
  font-family: var(--font-heading);
  font-size: 16.5px;
  font-weight: 800;
  cursor: pointer;
  transition: all 0.25s ease;
  user-select: none;
}

.materi-tab-btn:hover {
  background: rgba(0, 172, 193, 0.2);
  transform: translateY(-1px);
}

.materi-tab-btn.active {
  background: linear-gradient(135deg, #00838F 0%, #0288D1 100%);
  color: var(--white);
  box-shadow: 0 4px 14px rgba(0, 131, 143, 0.4);
}

.materi-tab-btn .mtab-icon {
  font-size: 18px;
}

.materi-tab-panel {
  display: none;
  width: 100%;
  animation: fadeInMateriTab 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

.materi-tab-panel.active {
  display: block;
}

@keyframes fadeInMateriTab {
  from {
    opacity: 0;
    transform: translateY(6px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- Page 6: Materi 1 Specifics ---------- */
#page-materi-1 {
  justify-content: flex-start;
  padding-top: 12px;
}

#page-materi-1 .title-bar {
  margin-top: 80px;
  margin-bottom: 20px;
  font-size: 32px;
  padding: 8px 52px;
}

#page-materi-1 .content-box {
  width: 96%;
  max-width: 1440px;
  min-height: 636px;
  padding: 26px 36px 18px !important;
}

#page-materi-1 .materi-tabs-nav {
  margin-bottom: 12px;
  gap: 12px;
  padding: 5px 10px;
}

#page-materi-1 .materi-tab-btn {
  padding: 8px 24px;
  font-size: 17.5px;
  gap: 8px;
}

#page-materi-1 .content-columns {
  gap: 22px;
}

#page-materi-1 .content-col {
  padding: 16px 22px !important;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 16px var(--shadow-light);
  display: flex;
  flex-direction: column;
}

#page-materi-1 .content-col h3 {
  font-size: 20.5px !important;
  margin-bottom: 6px !important;
  line-height: 1.3;
  color: #00838F;
}

#page-materi-1 .content-col p {
  font-size: 16.5px !important;
  line-height: 1.5 !important;
  margin-bottom: 8px !important;
}

#page-materi-1 .materi-subcard-list {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

#page-materi-1 .materi-subcard {
  background: var(--white);
  border-radius: 10px;
  padding: 8px 14px;
  border: 1.5px solid rgba(0, 172, 193, 0.35);
  box-shadow: 0 2px 6px var(--shadow-light);
}

#page-materi-1 .materi-subcard-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 2px;
}

#page-materi-1 .materi-subcard-desc {
  font-size: 14.5px !important;
  line-height: 1.4 !important;
  margin-bottom: 0 !important;
  color: var(--text-body);
}

#page-materi-1 .materi-analogi-box {
  background: #e0f7fa;
  border-left: 5px solid var(--teal);
  padding: 10px 14px;
  border-radius: 0 10px 10px 0;
  margin-top: 6px;
}

#page-materi-1 .materi-analogi-box p {
  margin-bottom: 0 !important;
  font-size: 15px !important;
  line-height: 1.45 !important;
  color: #006064;
}

#page-materi-1 .materi-highlight-box {
  background: #e0f2fe;
  border-left: 5px solid #0288D1;
  padding: 10px 14px;
  border-radius: 0 10px 10px 0;
  margin-top: 6px;
}

#page-materi-1 .materi-highlight-box p {
  margin-bottom: 0 !important;
  font-size: 15px !important;
  line-height: 1.45 !important;
  color: #01579b;
}

/* ---------- Cover Page Specifics ---------- */
#page-cover .cover-center {
  text-align: center;
  max-width: 1500px;
  width: 95%;
  margin-top: 120px;
}

#page-cover .cover-title {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

#page-cover .cover-title-main {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 135px;
  color: #00838F;
  text-shadow:
    -4px -4px 0 var(--white),
    4px -4px 0 var(--white),
    -4px 4px 0 var(--white),
    4px 4px 0 var(--white),
    -5px 0 0 var(--white),
    5px 0 0 var(--white),
    0 -5px 0 var(--white),
    0 5px 0 var(--white),
    0 10px 24px rgba(0, 0, 0, 0.25);
  line-height: 1.05;
  letter-spacing: 1.5px;
}

#page-cover .cover-title-sub {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 85px;
  color: #E65100;
  text-shadow:
    -3.5px -3.5px 0 var(--white),
    3.5px -3.5px 0 var(--white),
    -3.5px 3.5px 0 var(--white),
    3.5px 3.5px 0 var(--white),
    -4px 0 0 var(--white),
    4px 0 0 var(--white),
    0 -4px 0 var(--white),
    0 4px 0 var(--white),
    0 8px 20px rgba(0, 0, 0, 0.22);
  line-height: 1.1;
  margin-top: 12px;
  letter-spacing: 1px;
}

#page-cover .cover-subtitle {
  display: inline-block;
  background: var(--teal);
  color: var(--white);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 28px;
  padding: 12px 54px;
  border-radius: var(--radius-pill);
  margin-top: 14px;
  margin-bottom: 16px;
  box-shadow: 0 6px 20px var(--shadow);
  border: 3.5px solid var(--white);
  letter-spacing: 1px;
}

#page-cover .btn-mulai {
  margin-top: 85px;
  padding: 20px 68px 20px 24px;
  background: var(--white);
  border: 4.5px solid var(--teal);
  border-radius: var(--radius-pill);
  box-shadow: 0 16px 42px rgba(0, 172, 193, 0.45), 0 0 0 4px rgba(255, 255, 255, 0.95);
  animation: pulseGlow 2.5s infinite ease-in-out;
}

#page-cover .btn-mulai:hover {
  transform: translateY(-6px) scale(1.06);
  box-shadow: 0 20px 50px rgba(0, 172, 193, 0.6), 0 0 0 5px rgba(255, 255, 255, 1);
}

#page-cover .btn-mulai .play-icon {
  width: 80px;
  height: 80px;
  font-size: 38px;
  background: linear-gradient(135deg, #00ACC1 0%, #00838F 100%);
  box-shadow: 0 4px 16px rgba(0, 172, 193, 0.5);
}

#page-cover .btn-mulai .mulai-text {
  font-size: 44px;
  font-weight: 800;
  color: var(--teal-dark);
  letter-spacing: 2.5px;
}

@keyframes pulseGlow {

  0%,
  100% {
    box-shadow: 0 16px 42px rgba(0, 172, 193, 0.45), 0 0 0 4px rgba(255, 255, 255, 0.95);
  }

  50% {
    box-shadow: 0 20px 52px rgba(0, 172, 193, 0.7), 0 0 0 6px rgba(77, 208, 225, 0.8);
  }
}

/* ---------- Testing Mode Page Indicator ---------- */
.testing-page-indicator {
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 96, 100, 0.88);
  color: var(--white);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 16px;
  padding: 6px 22px;
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
  border: 2px solid rgba(255, 255, 255, 0.88);
  z-index: 9999;
  pointer-events: none;
  letter-spacing: 0.5px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}

/* ---------- Intro Pages (Permainan & Latihan Redesign) ---------- */
.intro-page {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.intro-card-box {
  background: rgba(224, 247, 250, 0.92);
  border: 4px dashed var(--teal);
  border-radius: var(--radius-lg);
  padding: 46px 64px 40px;
  max-width: 1040px;
  width: 90%;
  box-shadow: 0 12px 40px var(--shadow);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.intro-card-box .intro-title {
  font-size: 78px;
  margin-bottom: 18px;
  letter-spacing: 1px;
}

.intro-card-box .intro-desc {
  font-size: 24px;
  font-weight: 500;
  color: #004d40;
  margin-bottom: 34px;
  max-width: 840px;
  line-height: 1.65;
  text-shadow: 0 1px 2px rgba(255, 255, 255, 0.9);
}

.intro-side-icon {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 92px;
  height: 92px;
  border-radius: 50%;
  background: var(--white);
  border: 4px solid var(--teal);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  box-shadow: 0 8px 24px var(--shadow);
  z-index: 10;
}

.intro-side-icon.left {
  left: -46px;
}

.intro-side-icon.right {
  right: -46px;
}

/* ---------- Drag & Drop (Tarik Jawaban) ---------- */
.dd-container {
  display: grid;
  grid-template-columns: 30% calc(70% - 32px);
  gap: 32px;
  width: 100%;
  flex: 1;
}

.dd-column h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 22px;
  color: var(--teal-dark);
  margin-bottom: 16px;
  text-align: center;
}

.dd-item {
  background: var(--white);
  border: 2.5px solid var(--teal);
  border-radius: var(--radius-md);
  padding: 14px 20px;
  margin-bottom: 12px;
  font-size: 19px;
  font-weight: 600;
  color: var(--text-dark);
  cursor: grab;
  box-shadow: 0 3px 10px var(--shadow-light);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  user-select: none;
}

.dd-item:active {
  cursor: grabbing;
}

.dd-item.dragging {
  opacity: 0.45;
  transform: scale(1.04) rotate(2deg);
}

.dd-drop-zone {
  min-height: 60px;
  background: rgba(255, 255, 255, 0.7);
  border: 2.5px dashed #90a4ae;
  border-radius: var(--radius-md);
  padding: 12px 18px;
  margin-bottom: 12px;
  font-size: 18px;
  color: var(--text-body);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.dd-drop-zone.over {
  border-color: var(--teal);
  background: rgba(224, 247, 250, 0.95);
  box-shadow: 0 0 0 3px rgba(0, 172, 193, 0.25);
}

.dd-drop-zone.filled {
  border-style: solid;
  border-color: var(--teal);
}

.dd-drop-zone.correct {
  border-color: #2e7d32;
  background: #e8f5e9;
}

.dd-drop-zone.incorrect {
  border-color: #c62828;
  background: #ffebee;
}

.dd-drop-zone .dd-placed {
  display: inline-block;
  background: var(--cyan-light);
  border: 2px solid var(--teal);
  border-radius: var(--radius-sm);
  padding: 8px 16px;
  font-weight: 700;
  font-size: 18px;
  color: var(--teal-dark);
  margin-top: 6px;
}

.dd-score-box {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  background: linear-gradient(135deg, rgba(0, 131, 143, 0.12) 0%, rgba(2, 136, 209, 0.12) 100%);
  border: 2.5px solid var(--teal);
  border-radius: var(--radius-pill);
  padding: 10px 28px;
  margin: 12px auto 6px;
  width: fit-content;
  box-shadow: 0 4px 14px rgba(0, 172, 193, 0.25);
  animation: fadeInScore 0.35s ease;
}

.dd-score-badge {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 800;
  color: var(--teal-dark);
}

.dd-score-text {
  font-family: var(--font-body);
  font-size: 18px;
  font-weight: 700;
  color: var(--text-dark);
}

@keyframes fadeInScore {
  from {
    opacity: 0;
    transform: translateY(6px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.dd-actions {
  display: flex;
  justify-content: center;
  gap: 18px;
  margin-top: 18px;
}

/* ---------- Network Simulation (Simulasi Jalur) ---------- */
.sim-container {
  width: 100%;
  position: relative;
}

.sim-topology {
  position: relative;
  width: 100%;
  max-width: 980px;
  height: 310px;
  margin: 0 auto 10px;
  background: rgba(255, 255, 255, 0.6);
  border: 2.5px solid rgba(0, 172, 193, 0.3);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.sim-node {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-dark);
  z-index: 4;
}

.sim-node .node-icon {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 38px;
  box-shadow: 0 4px 14px var(--shadow);
  margin-bottom: 6px;
}

.sim-node.sender .node-icon,
.sim-node.receiver .node-icon {
  background: var(--cyan-light);
  border: 3px solid var(--blue);
}

.sim-router {
  position: absolute;
  z-index: 5;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: transform var(--transition);
}

.sim-router:hover {
  transform: scale(1.15);
}

.sim-router .router-icon {
  width: 62px;
  height: 62px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  box-shadow: 0 4px 14px var(--shadow);
  border: 3.5px solid transparent;
  transition: all var(--transition);
}

.sim-router.path-a .router-icon {
  background: #e3f2fd;
  border-color: var(--blue);
}

.sim-router.path-b .router-icon {
  background: #ffebee;
  border-color: #f44336;
}

.sim-router.path-c .router-icon {
  background: #e8f5e9;
  border-color: #4caf50;
}

.sim-router.selected .router-icon {
  box-shadow: 0 0 0 5px rgba(0, 172, 193, 0.45), 0 6px 18px var(--shadow);
  border-color: var(--teal);
  transform: scale(1.1);
}

.sim-router.path-b .warning {
  position: absolute;
  top: -10px;
  right: -10px;
  font-size: 24px;
  animation: blink 1s ease-in-out infinite;
}

.sim-router .router-label {
  font-size: 15px;
  font-weight: 700;
  margin-top: 4px;
}

.sim-topology svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.sim-path {
  fill: none;
  stroke-width: 5;
  stroke-linecap: round;
  opacity: 0.6;
  transition: opacity var(--transition), stroke-width var(--transition);
}

.sim-path.path-a {
  stroke: var(--blue);
}

.sim-path.path-b {
  stroke: #f44336;
  stroke-dasharray: 10 8;
}

.sim-path.path-c {
  stroke: #4caf50;
}

.sim-path.active {
  opacity: 1;
  stroke-width: 7;
}

.packet {
  position: absolute;
  width: 32px;
  height: 32px;
  background: var(--teal);
  border: 2.5px solid var(--white);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 800;
  color: var(--white);
  z-index: 10;
  box-shadow: 0 3px 12px var(--shadow);
  opacity: 0;
}

.btn-send {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--teal);
  color: var(--white);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 22px;
  padding: 14px 44px;
  border-radius: var(--radius-pill);
  box-shadow: 0 6px 18px var(--shadow);
  border: 3px solid var(--white);
  transition: background var(--transition), transform var(--transition);
}

.btn-send:hover {
  background: var(--teal-dark);
  transform: translateY(-3px);
}

.btn-send:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* Simulation Feedback Overlay */
.sim-feedback {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 30;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
  border-radius: var(--radius-lg);
}

.sim-feedback.show {
  opacity: 1;
  pointer-events: auto;
}

.sim-feedback-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px 44px;
  max-width: 540px;
  text-align: center;
  box-shadow: 0 14px 48px rgba(0, 0, 0, 0.35);
  animation: popIn 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.sim-feedback-card .fb-icon {
  font-size: 68px;
  margin-bottom: 14px;
}

.sim-feedback-card .fb-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 28px;
  margin-bottom: 12px;
}

.sim-feedback-card .fb-title.success {
  color: #2e7d32;
}

.sim-feedback-card .fb-title.error {
  color: #c62828;
}

.sim-feedback-card .fb-text {
  font-size: 18px;
  line-height: 1.65;
  color: var(--text-body);
  margin-bottom: 24px;
}

.sim-feedback-card .fb-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ==================== PACKET COMMANDER GAME (PAGE 11) ==================== */
#page-permainan {
  padding-top: 4px;
}

#page-permainan .title-bar {
  margin-top: 4px;
  margin-bottom: 4px;
  font-size: 28px;
  font-weight: 800;
  padding: 10px 52px;
}

.game-main-box {
  max-width: 1440px;
  width: 98%;
  padding: 14px 34px 14px !important;
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  box-shadow: 0 12px 36px rgba(0, 172, 193, 0.18);
}

/* Header & Level Tabs */
.game-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.game-level-tabs {
  display: flex;
  gap: 8px;
  background: rgba(0, 172, 193, 0.08);
  padding: 4px;
  border-radius: var(--radius-pill);
  border: 2px solid rgba(0, 172, 193, 0.25);
}

.game-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  border-radius: var(--radius-pill);
  border: none;
  background: transparent;
  color: var(--text-dark);
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 800;
  cursor: pointer;
  transition: all 0.25s ease;
}

.game-tab:hover:not(.locked) {
  background: rgba(0, 172, 193, 0.18);
}

.game-tab.active {
  background: linear-gradient(135deg, var(--teal) 0%, var(--blue) 100%);
  color: var(--white);
  box-shadow: 0 4px 14px rgba(0, 172, 193, 0.45);
}

.game-tab.locked {
  opacity: 0.45;
  cursor: not-allowed;
}

.tab-badge {
  background: rgba(0, 0, 0, 0.12);
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 13px;
}

.game-tab.active .tab-badge {
  background: rgba(255, 255, 255, 0.3);
}

.tab-stars {
  font-size: 15px;
}

/* HUD Stats */
.game-hud {
  display: flex;
  gap: 12px;
  align-items: center;
}

.hud-item {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  background: rgba(255, 255, 255, 0.95);
  padding: 5px 16px;
  border-radius: 10px;
  border: 1.5px solid rgba(0, 0, 0, 0.08);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.hud-label {
  font-size: 11px;
  font-weight: 800;
  color: var(--text-muted);
  letter-spacing: 0.6px;
}

.hud-val {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 800;
  color: var(--text-dark);
}

.hud-val.star-val {
  color: #f57f17;
}

.status-badge.ready {
  color: #2e7d32;
}

.status-badge.warning {
  color: #e65100;
}

.status-badge.error {
  color: #c62828;
}

.latency-badge {
  color: var(--blue);
}

/* Mission Info Banner */
.game-mission-info {
  display: flex;
  align-items: center;
  gap: 12px;
  background: linear-gradient(90deg, rgba(224, 247, 250, 0.95) 0%, rgba(255, 255, 255, 0.9) 100%);
  border-left: 6px solid var(--teal);
  padding: 10px 20px;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.mission-icon {
  font-size: 26px;
}

.mission-text {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.4;
}

/* Game Stage & 3-Column Layout */
.game-stage-wrapper {
  display: flex;
  gap: 20px;
  align-items: stretch;
  width: 100%;
  height: 340px;
  position: relative;
}

/* Side Panels: Sender & Receiver */
.game-side-panel {
  width: 235px;
  background: rgba(255, 255, 255, 0.95);
  border: 2.5px solid rgba(0, 172, 193, 0.35);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.07);
  flex-shrink: 0;
}

.game-side-panel.sender-panel {
  border-color: #0288D1;
  background: linear-gradient(180deg, #ffffff 0%, #e1f5fe 100%);
}

.game-side-panel.receiver-panel {
  border-color: #4caf50;
  background: linear-gradient(180deg, #ffffff 0%, #e8f5e9 100%);
}

.side-panel-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 17px;
  color: var(--text-dark);
}

.sender-panel .side-panel-header {
  color: #0288D1;
}

.receiver-panel .side-panel-header {
  color: #2e7d32;
}

.side-preview-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  width: 100%;
}

/* Cat Preview Frame */
.cat-preview-frame {
  width: 165px;
  height: 165px;
  border-radius: 12px;
  overflow: hidden;
  position: relative;
  border: 3px solid #0288D1;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
  background: #37474f;
}

.cat-preview-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.photo-overlay-grid {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  pointer-events: none;
}

.photo-overlay-grid span {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 900;
  color: rgba(255, 255, 255, 0.95);
  background: rgba(0, 0, 0, 0.24);
  border: 1.5px dashed rgba(255, 255, 255, 0.8);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.9);
}

.photo-info-badge {
  font-size: 13px;
  font-weight: 800;
  color: #0288D1;
  background: #e1f5fe;
  padding: 4px 14px;
  border-radius: 14px;
  border: 1.5px solid rgba(2, 136, 209, 0.35);
}

/* Receiver Puzzle Grid (Using cat.png) */
.rx-puzzle-grid {
  width: 165px;
  height: 165px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 4px;
  background: #263238;
  padding: 4px;
  border-radius: 12px;
  border: 3px solid #37474f;
  position: relative;
  overflow: hidden;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.rx-slot {
  background: #455a64;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  position: relative;
  transition: all 0.3s ease;
  overflow: hidden;
  cursor: pointer;
}

.slot-badge {
  font-size: 16px;
  font-weight: 900;
  color: rgba(255, 255, 255, 0.75);
  z-index: 2;
}

.rx-slot.filled {
  background-image: url('assets/cat.jpg') !important;
  background-repeat: no-repeat;
  border: 2px solid rgba(255, 255, 255, 0.95);
  animation: popIn 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.rx-slot[data-slot="1"].filled {
  background-size: 200% 200%;
  background-position: 0% 0%;
}

.rx-slot[data-slot="2"].filled {
  background-size: 200% 200%;
  background-position: 100% 0%;
}

.rx-slot[data-slot="3"].filled {
  background-size: 200% 200%;
  background-position: 0% 100%;
}

.rx-slot[data-slot="4"].filled {
  background-size: 200% 200%;
  background-position: 100% 100%;
}

.rx-slot.filled .slot-badge {
  display: none;
}

.rx-puzzle-grid.complete {
  border-color: #ffd54f;
  box-shadow: 0 0 24px rgba(255, 213, 79, 0.9);
  animation: pulseGlow 1.5s ease-in-out infinite;
}

.rx-status {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.35;
}

.rx-status.complete {
  color: #2e7d32;
  font-weight: 800;
}

/* Center Canvas */
.game-canvas {
  flex: 1;
  position: relative;
  background: radial-gradient(circle at center, rgba(255, 255, 255, 0.98) 0%, rgba(240, 249, 250, 0.85) 100%);
  border: 2.5px solid rgba(0, 172, 193, 0.35);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: inset 0 2px 12px rgba(0, 172, 193, 0.08);
}

#game-svg-layer {
  width: 100%;
  height: 100%;
  display: block;
  pointer-events: auto !important;
}

/* SVG Vector Styles */
.g-path {
  fill: none;
  stroke: #b0bec5;
  stroke-width: 6;
  stroke-linecap: round;
  transition: all 0.3s ease;
  opacity: 0.55;
  pointer-events: none !important;
}

.g-path.active {
  stroke: var(--teal);
  stroke-width: 8;
  opacity: 1;
  filter: drop-shadow(0 0 8px rgba(0, 172, 193, 0.75));
}

.g-path.fast {
  stroke: #4caf50;
  stroke-width: 8;
  opacity: 1;
  filter: drop-shadow(0 0 8px rgba(76, 175, 80, 0.75));
}

.g-path.congested {
  stroke: #ff9800;
  stroke-width: 8;
  stroke-dasharray: 12 8;
  animation: streamDash 0.9s linear infinite;
}

.g-path.down {
  stroke: #f44336;
  stroke-width: 7;
  stroke-dasharray: 12 8;
  opacity: 0.65;
}

/* SVG Node Elements */
.svg-node {
  cursor: pointer !important;
  pointer-events: all !important;
  transition: transform 0.2s ease;
}

.svg-node:hover {
  filter: drop-shadow(0 8px 18px rgba(0, 172, 193, 0.55));
}

.svg-node-box {
  transition: all 0.25s ease;
}

.svg-node.selected .svg-node-box {
  stroke: var(--teal) !important;
  stroke-width: 4 !important;
  filter: drop-shadow(0 0 10px rgba(0, 172, 193, 0.85));
}

.svg-node.down {
  cursor: not-allowed !important;
}

.svg-node.down .svg-node-box {
  stroke: #f44336 !important;
  stroke-width: 4 !important;
}

.svg-node-text {
  font-family: var(--font-heading);
  font-size: 13.5px;
  font-weight: 800;
  fill: var(--text-dark);
  text-anchor: middle;
  dominant-baseline: middle;
  pointer-events: none;
}

.svg-node.down .svg-node-text {
  fill: #c62828;
}

/* Flying Packets */
#game-packets-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 20;
}

.svg-packet-unit {
  pointer-events: none;
}

/* Game Decks */
.game-deck {
  background: rgba(255, 255, 255, 0.95);
  border: 2px solid rgba(0, 172, 193, 0.3);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
}

.deck-title {
  font-size: 14.5px;
  font-weight: 800;
  color: var(--teal-dark);
  margin-bottom: 8px;
}

.packet-routes-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.packet-route-card {
  background: #f8fafc;
  border: 1.5px solid #e2e8f0;
  border-radius: 10px;
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: center;
}

.pkt-badge {
  font-size: 13.5px;
  font-weight: 800;
  color: var(--text-dark);
}

.pkt-selector {
  display: flex;
  gap: 8px;
  width: 100%;
}

.btn-pkt-path {
  flex: 1;
  padding: 8px 6px;
  font-size: 13.5px;
  font-weight: 800;
  border-radius: 8px;
  border: 1.5px solid #cbd5e1;
  background: #ffffff;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-pkt-path.active {
  background: var(--teal);
  color: var(--white);
  border-color: var(--teal-dark);
  box-shadow: 0 3px 10px rgba(0, 172, 193, 0.4);
}

/* Misi 3 Dynamic Mesh Route Allocation & Buffer Inbox */
.mesh-pkt-routes-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.mesh-pkt-card {
  background: #f8fafc;
  border: 1.5px solid #e2e8f0;
  border-radius: 10px;
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.mesh-pkt-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.pkt-target-hint {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
}

.mesh-route-select {
  width: 100%;
  padding: 7px 8px;
  font-size: 13px;
  font-weight: 800;
  border-radius: 8px;
  border: 1.5px solid #cbd5e1;
  background: #ffffff;
  color: var(--text-dark);
  cursor: pointer;
  outline: none;
  transition: border-color 0.2s ease;
}

.mesh-route-select:focus {
  border-color: var(--teal);
}

/* Interactive Buffer Inbox Cards (Misi 3) */
.mesh-inbox-grid {
  display: flex;
  gap: 14px;
  justify-content: center;
  align-items: stretch;
  padding: 6px 0;
  flex-wrap: wrap;
}

.mesh-inbox-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 20px;
  border-radius: 14px;
  border: 2px solid #cbd5e1;
  background: #ffffff;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  user-select: none;
}

.mesh-inbox-card:hover:not(.processed) {
  transform: translateY(-3px) scale(1.04);
  box-shadow: 0 8px 22px rgba(0, 172, 193, 0.38);
  border-color: var(--teal);
}

.mesh-inbox-card.selected {
  border-color: var(--teal);
  background: #e0f7fa;
  box-shadow: 0 0 0 3px rgba(0, 172, 193, 0.45), 0 8px 20px rgba(0, 0, 0, 0.14);
  transform: translateY(-2px);
}

.mesh-inbox-card.processed {
  opacity: 0.35;
  cursor: not-allowed;
  transform: none;
  border-color: #e2e8f0;
  background: #f1f5f9;
}

.mic-thumb {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  border: 1.5px solid rgba(0, 0, 0, 0.2);
  background-image: url('assets/cat.jpg');
  background-repeat: no-repeat;
  flex-shrink: 0;
}

.mic-thumb[data-slot="1"] {
  background-size: 200% 200%;
  background-position: 0% 0%;
}

.mic-thumb[data-slot="2"] {
  background-size: 200% 200%;
  background-position: 100% 0%;
}

.mic-thumb[data-slot="3"] {
  background-size: 200% 200%;
  background-position: 0% 100%;
}

.mic-thumb[data-slot="4"] {
  background-size: 200% 200%;
  background-position: 100% 100%;
}

.mic-info {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.mic-header-title {
  font-size: 14.5px;
  font-weight: 800;
  color: var(--text-dark);
}

.mic-arrival-tag {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
}

/* Receiver Slot Interactive States */
.rx-slot:hover:not(.filled) {
  border: 2px solid var(--teal);
  background: #546e7a;
}

.rx-slot.target-highlight:not(.filled) {
  border: 3px dashed #ffd54f !important;
  animation: pulseSlot 1s ease-in-out infinite;
}

@keyframes pulseSlot {

  0%,
  100% {
    background: #546e7a;
  }

  50% {
    background: rgba(0, 172, 193, 0.5);
  }
}

.rx-slot.shake-error {
  animation: shakeSlot 0.4s ease-in-out;
  border: 3px solid #f44336 !important;
}

@keyframes shakeSlot {

  0%,
  100% {
    transform: translateX(0);
  }

  20%,
  60% {
    transform: translateX(-6px);
  }

  40%,
  80% {
    transform: translateX(6px);
  }
}

/* Action Toolbar (Prominent & Tactile) */
.game-toolbar {
  display: flex;
  gap: 18px;
  justify-content: center;
  align-items: center;
  padding-top: 4px;
}

.btn-game {
  font-family: var(--font-heading);
  font-weight: 800;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: all 0.25s ease;
  font-size: 17px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
}

.btn-game:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.16);
}

.btn-game.btn-transmit {
  background: linear-gradient(135deg, var(--teal) 0%, var(--blue) 100%);
  color: var(--white);
  box-shadow: 0 6px 20px rgba(0, 172, 193, 0.45);
  font-size: 20px;
  padding: 14px 44px;
  letter-spacing: 0.5px;
}

.btn-game.btn-transmit:hover:not(:disabled) {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 10px 28px rgba(0, 172, 193, 0.6);
}

.btn-game.btn-transmit:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

.btn-game.btn-reset {
  background: #f1f5f9;
  color: var(--text-dark);
  border: 2px solid #cbd5e1;
}

.btn-game.btn-reset:hover {
  background: #e2e8f0;
}

.btn-game.btn-hint {
  background: #fff8e1;
  color: #b78103;
  border: 2px solid #ffe082;
}

.btn-game.btn-hint:hover {
  background: #ffecb3;
}

/* Game Modal Overlay */
.game-modal {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  border-radius: var(--radius-lg);
  padding: 20px;
}

.game-modal.show {
  opacity: 1;
  pointer-events: auto;
}

.game-modal-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 24px 32px;
  max-width: 520px;
  width: 100%;
  text-align: center;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.35);
  animation: popIn 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.game-modal-card .gm-icon {
  font-size: 52px;
  margin-bottom: 6px;
}

.game-modal-card .gm-title {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 6px;
}

.game-modal-card .gm-title.success {
  color: #2e7d32;
}

.game-modal-card .gm-title.error {
  color: #c62828;
}

.game-modal-card .gm-title.victory {
  color: #f57f17;
}

.game-modal-card .gm-text {
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-body);
  margin-bottom: 18px;
}

.game-modal-card .gm-stars-row {
  font-size: 28px;
  margin-bottom: 8px;
  letter-spacing: 4px;
}

.game-modal-card .gm-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- Evaluation / Latihan Multi-Type ---------- */
.eval-container {
  width: 100%;
}

.eval-section {
  display: none;
}

.eval-section.active {
  display: block;
  animation: fadeIn 0.35s ease;
}

.eval-section-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 24px;
  color: var(--teal-dark);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.eval-progress {
  display: flex;
  gap: 12px;
  margin-bottom: 22px;
  justify-content: center;
}

.eval-progress .step {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  border: 3px solid #cbd5e1;
  color: #94a3b8;
  background: var(--white);
  transition: all var(--transition);
}

.eval-progress .step.active {
  border-color: var(--teal);
  color: var(--teal);
  box-shadow: 0 0 0 4px rgba(0, 172, 193, 0.25);
  transform: scale(1.08);
}

.eval-progress .step.done {
  border-color: #4caf50;
  color: var(--white);
  background: #4caf50;
}

/* MCQ Options */
.mcq-question {
  margin-bottom: 24px;
  background: rgba(255, 255, 255, 0.6);
  padding: 18px 22px;
  border-radius: var(--radius-md);
  border: 1.5px solid rgba(0, 172, 193, 0.2);
}

.mcq-question .q-text {
  font-weight: 700;
  font-size: 19px;
  color: var(--text-dark);
  margin-bottom: 14px;
  line-height: 1.5;
}

.mcq-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mcq-option {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 18px;
  background: var(--white);
  border: 2.5px solid #e2e8f0;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition);
  font-size: 18px;
  font-weight: 500;
}

.mcq-option:hover {
  border-color: var(--teal);
  background: var(--cyan-light);
  transform: translateX(4px);
}

.mcq-option.selected {
  border-color: var(--teal);
  background: var(--cyan-light);
  box-shadow: 0 0 0 2px rgba(0, 172, 193, 0.3);
}

.mcq-option .option-letter {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #e2e8f0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 16px;
  color: var(--text-muted);
  flex-shrink: 0;
}

.mcq-option.selected .option-letter {
  background: var(--teal);
  color: var(--white);
}

/* True / False Questions */
.tf-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 22px;
  background: var(--white);
  border: 2px solid #e2e8f0;
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  gap: 16px;
}

.tf-question .q-text {
  flex: 1;
  font-size: 18px;
  font-weight: 500;
}

.tf-buttons {
  display: flex;
  gap: 10px;
  flex-shrink: 0;
}

.tf-btn {
  padding: 8px 24px;
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 17px;
  border: 2.5px solid #cbd5e1;
  background: var(--white);
  transition: all var(--transition);
}

.tf-btn:hover {
  border-color: var(--teal);
}

.tf-btn.selected-benar {
  border-color: #2e7d32;
  background: #e8f5e9;
  color: #2e7d32;
  box-shadow: 0 2px 8px rgba(46, 125, 50, 0.2);
}

.tf-btn.selected-salah {
  border-color: #c62828;
  background: #ffebee;
  color: #c62828;
  box-shadow: 0 2px 8px rgba(198, 40, 40, 0.2);
}

/* Matching Items (Bagian C) */
.match-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
  position: relative;
  margin-top: 10px;
  padding: 8px 0;
}

.match-svg-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 2;
}

.match-svg-layer path {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.15));
  transition: stroke 0.3s ease, stroke-width 0.3s ease;
  animation: matchDash 25s linear infinite;
}

@keyframes matchDash {
  to {
    stroke-dashoffset: -1000;
  }
}

.match-left,
.match-right {
  display: flex;
  flex-direction: column;
  gap: 14px;
  z-index: 3;
}

.match-item {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 18px;
  background: var(--white);
  border: 2.5px solid var(--teal);
  border-radius: var(--radius-md);
  font-size: 17px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: 0 3px 10px var(--shadow-light);
  user-select: none;
}

.match-item:hover {
  background: var(--cyan-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px var(--shadow-light);
}

.match-item.selected {
  background: #e0f7fa;
  border-color: #00838f;
  box-shadow: 0 0 0 4px rgba(0, 172, 193, 0.35), 0 4px 14px rgba(0, 131, 143, 0.25);
  transform: translateY(-2px) scale(1.01);
}

.match-item.matched {
  cursor: pointer;
  background: var(--pair-bg, #e8f5e9);
  border-color: var(--pair-border, #4caf50);
  color: var(--pair-color, #2e7d32);
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.08);
}

.match-item.matched:hover {
  filter: brightness(0.96);
  transform: translateY(-2px) scale(1.01);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
}

.match-item-content {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  text-align: left;
  line-height: 1.4;
}

.match-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 700;
  background: var(--pair-color, #2e7d32);
  color: var(--white);
  flex-shrink: 0;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
  animation: popIn 0.3s ease;
}

.match-unpair-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.35);
  color: #fff;
  font-size: 11px;
  font-weight: 900;
  cursor: pointer;
  transition: all 0.2s ease;
}

.match-unpair-btn:hover {
  background: rgba(255, 255, 255, 0.95);
  color: #c62828;
  transform: scale(1.2);
}

.match-anchor-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--teal);
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  transition: all 0.3s ease;
}

.match-left .match-anchor-dot {
  right: -5px;
}

.match-right .match-anchor-dot {
  left: -5px;
}

.match-item.matched .match-anchor-dot {
  background: var(--pair-color, #2e7d32);
  transform: translateY(-50%) scale(1.3);
}

.match-item.selected .match-anchor-dot {
  background: #00838f;
  animation: pulseAnchor 0.8s infinite alternate;
}

@keyframes pulseAnchor {
  0% {
    transform: translateY(-50%) scale(1);
  }

  100% {
    transform: translateY(-50%) scale(1.6);
  }
}

/* Sequencing (Drag to sort) */
.seq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 800px;
  margin: 0 auto;
}

.seq-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 22px;
  background: var(--white);
  border: 2.5px solid #cbd5e1;
  border-radius: var(--radius-md);
  cursor: grab;
  transition: all var(--transition);
  user-select: none;
  font-size: 18px;
  font-weight: 500;
  box-shadow: 0 3px 10px var(--shadow-light);
}

.seq-item:active {
  cursor: grabbing;
}

.seq-item.dragging {
  opacity: 0.4;
  transform: scale(1.03);
}

.seq-item.over {
  border-color: var(--teal);
  background: var(--cyan-light);
}

.seq-item .seq-num {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--teal);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 17px;
  flex-shrink: 0;
}

.seq-item .seq-grip {
  color: #94a3b8;
  font-size: 22px;
  flex-shrink: 0;
  cursor: grab;
}

/* Recap Card */
.recap-card {
  text-align: center;
  padding: 20px;
  animation: popIn 0.5s ease;
}

.recap-score {
  font-family: var(--font-heading);
  font-size: 80px;
  font-weight: 700;
  color: var(--teal);
  margin: 12px 0;
  line-height: 1;
}

.recap-details {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin: 20px 0;
}

.recap-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  border-radius: var(--radius-pill);
  font-size: 17px;
  font-weight: 700;
}

.recap-badge.a {
  background: #e3f2fd;
  color: #1565c0;
}

.recap-badge.b {
  background: #f3e5f5;
  color: #7b1fa2;
}

.recap-badge.c {
  background: #fff3e0;
  color: #e65100;
}

.recap-badge.d {
  background: #e8f5e9;
  color: #2e7d32;
}

.recap-badge.e {
  background: #fce4ec;
  color: #c62828;
}

.recap-msg {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 700;
  margin-top: 16px;
  padding: 18px 32px;
  border-radius: var(--radius-lg);
  display: inline-block;
}

.recap-msg.excellent {
  background: #e8f5e9;
  color: #2e7d32;
  border: 2px solid #a5d6a7;
}

.recap-msg.good {
  background: #fff3e0;
  color: #e65100;
  border: 2px solid #ffcc80;
}

.recap-msg.tryagain {
  background: #ffebee;
  color: #c62828;
  border: 2px solid #ef9a9a;
}

/* ---------- Video Layout ---------- */
.video-layout {
  display: grid;
  grid-template-columns: 3fr 1fr;
  gap: 32px;
  align-items: center;
  flex: 1;
}

.video-wrapper {
  background: #0f172a;
  border-radius: var(--radius-md);
  border: 3px solid rgba(0, 172, 193, 0.4);
  overflow: hidden;
  aspect-ratio: 16/9;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  box-shadow: 0 8px 28px var(--shadow);
}

.video-wrapper video {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.video-fallback {
  color: #cbd5e1;
  text-align: center;
  font-size: 16px;
  padding: 24px;
}

.video-fallback .fallback-icon {
  font-size: 54px;
  margin-bottom: 12px;
  display: block;
}

/* ---------- Pengembang Page ---------- */
.dev-card {
  background: rgba(255, 255, 255, 0.75);
  border: 2px solid rgba(0, 172, 193, 0.35);
  border-radius: var(--radius-md);
  padding: 22px 28px;
  margin-bottom: 24px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.06);
  transition: transform var(--transition), box-shadow var(--transition);
}

.dev-card:last-child {
  margin-bottom: 0;
}

.dev-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(0, 172, 193, 0.22);
  border-color: var(--teal);
}

.dev-layout {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 32px;
  align-items: center;
}

.dev-photo {
  width: 175px;
  height: 175px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, #81d4fa, #4dd0e1, #a5d6a7);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 72px;
  box-shadow: 0 6px 20px var(--shadow);
  border: 3.5px solid var(--white);
  overflow: hidden;
  position: relative;
  flex-shrink: 0;
}

.dev-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.dev-fields {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.dev-field {
  display: flex;
  align-items: center;
  gap: 16px;
}

.dev-field .field-label {
  background: var(--teal);
  color: var(--white);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 18px;
  padding: 8px 24px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
  min-width: 130px;
  text-align: center;
  box-shadow: 0 3px 8px var(--shadow-light);
}

.dev-field .field-value {
  background: var(--white);
  padding: 10px 22px;
  border-radius: var(--radius-md);
  font-size: 18px;
  font-weight: 600;
  flex: 1;
  box-shadow: 0 2px 8px var(--shadow-light);
  border: 1.5px solid rgba(0, 172, 193, 0.2);
}

.dev-social {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 8px;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-dark);
}

.dev-social svg {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  flex-shrink: 0;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

/* ---------- PJ & Penyunting Page ---------- */
.pj-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.pj-column {
  text-align: center;
}

.pj-column .title-bar {
  font-size: 22px;
  padding: 8px 36px;
  margin-bottom: 16px;
}

.pj-list {
  background: rgba(255, 255, 255, 0.75);
  border-radius: var(--radius-md);
  padding: 18px 22px;
  text-align: left;
  border: 2px solid rgba(0, 172, 193, 0.2);
  box-shadow: 0 4px 14px var(--shadow-light);
}

.pj-list .pj-item {
  padding: 10px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  font-size: 16px;
  line-height: 1.5;
}

.pj-list .pj-item:last-child {
  border-bottom: none;
}

.pj-list .pj-name {
  font-weight: 700;
  color: var(--text-dark);
}

.pj-list .pj-role {
  font-size: 15px;
  color: var(--text-muted);
  font-style: italic;
}

/* ---------- Rangkuman Page ---------- */
.rangkuman-points {
  display: flex;
  gap: 24px;
  margin-bottom: 24px;
}

.rangkuman-point {
  flex: 1;
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  text-align: center;
  box-shadow: 0 4px 16px var(--shadow-light);
  border: 2px solid rgba(0, 172, 193, 0.2);
  transition: transform var(--transition);
}

.rangkuman-point:hover {
  transform: translateY(-4px);
}

.rangkuman-point .rp-icon {
  font-size: 48px;
  margin-bottom: 12px;
  display: block;
}

.rangkuman-point .rp-text {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-dark);
  line-height: 1.5;
}

.refleksi-box {
  background: var(--white);
  border: 2.5px solid var(--cyan-med);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin-top: 8px;
}

.refleksi-box .refleksi-q {
  font-size: 18px;
  font-weight: 700;
  color: var(--teal-dark);
  margin-bottom: 12px;
}

.refleksi-box textarea {
  width: 100%;
  min-height: 90px;
  border: 2px solid #cbd5e1;
  border-radius: var(--radius-sm);
  padding: 14px;
  font-family: var(--font-body);
  font-size: 17px;
  resize: vertical;
  outline: none;
  transition: border-color var(--transition);
}

.refleksi-box textarea:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(0, 172, 193, 0.2);
}

.badge-completion {
  text-align: center;
  margin-top: 20px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 24px;
  color: var(--teal-dark);
  animation: popIn 0.6s ease;
}

/* ---------- Generic Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 18px;
  transition: all var(--transition);
  box-shadow: 0 4px 12px var(--shadow-light);
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px var(--shadow);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: var(--teal);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--teal-dark);
}

.btn-secondary {
  background: var(--white);
  color: var(--teal);
  border: 2.5px solid var(--teal);
}

.btn-secondary:hover {
  background: var(--cyan-light);
}

.btn-success {
  background: #2e7d32;
  color: var(--white);
}

.btn-success:hover {
  background: #1b5e20;
}

.btn-warning {
  background: #f57c00;
  color: var(--white);
}

.btn-warning:hover {
  background: #e65100;
}

.btn-danger {
  background: #d32f2f;
  color: var(--white);
}

.btn-danger:hover {
  background: #b71c1c;
}

/* Instruction Text */
.instruction {
  text-align: center;
  font-size: 19px;
  font-weight: 600;
  color: var(--teal-dark);
  margin-bottom: 20px;
  font-style: italic;
}

/* Scrollable Container */
.scrollable {
  overflow-y: auto;
  padding-right: 12px;
}

.scrollable::-webkit-scrollbar {
  width: 8px;
}

.scrollable::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.04);
  border-radius: 4px;
}

.scrollable::-webkit-scrollbar-thumb {
  background: var(--cyan-med);
  border-radius: 4px;
}

.scrollable::-webkit-scrollbar-thumb:hover {
  background: var(--teal);
}

/* ---------- Confetti Animation ---------- */
.confetti-piece {
  position: fixed;
  width: 12px;
  height: 12px;
  z-index: 1000;
  pointer-events: none;
  border-radius: 2px;
  animation: confettiFall 2.8s ease-in forwards;
}

/* ---------- Page 17/18: Kutipan / Motto ---------- */
#page-kutipan .content-box {
  width: 95%;
  max-width: 1400px;
  min-height: 640px;
  height: 640px;
  max-height: calc(100vh - 150px);
  padding: 32px 48px !important;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  position: relative;
  gap: 22px;
  background: linear-gradient(145deg, #ffffff 0%, #f0fdfa 100%);
  border-radius: var(--radius-lg);
  border: 2px solid rgba(0, 172, 193, 0.22);
  box-shadow: 0 16px 40px rgba(0, 77, 64, 0.08);
}

#page-kutipan .kutipan-card-hero {
  position: relative;
  width: 100%;
  max-width: 1200px;
  min-height: 290px;
  padding: 36px 64px 30px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 26px;
  border: 1.5px solid rgba(0, 172, 193, 0.22);
  box-shadow: 0 12px 32px rgba(0, 131, 143, 0.08);
}

#page-kutipan .kutipan-quote-mark {
  font-family: var(--font-heading);
  font-size: 110px;
  line-height: 0.8;
  color: var(--teal);
  opacity: 0.25;
  position: absolute;
  user-select: none;
  pointer-events: none;
}

#page-kutipan .kutipan-quote-mark.left {
  top: 18px;
  left: 24px;
}

#page-kutipan .kutipan-quote-mark.right {
  bottom: 18px;
  right: 24px;
}

#page-kutipan .kutipan-text {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 34px;
  line-height: 1.48;
  background: linear-gradient(135deg, #004d40 0%, #00796b 50%, #00838f 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  max-width: 1080px;
  margin: 0 auto 14px;
  letter-spacing: 1.2px;
  text-shadow: 0 2px 8px rgba(0, 172, 193, 0.1);
}

#page-kutipan .kutipan-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  margin: 10px auto 14px;
  width: 100%;
  max-width: 480px;
}

#page-kutipan .kutipan-divider .kd-line {
  flex: 1;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(0, 172, 193, 0.6), transparent);
}

#page-kutipan .kutipan-divider .kd-star {
  font-size: 15px;
  color: #f59e0b;
  letter-spacing: 5px;
}

#page-kutipan .kutipan-subtag {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 20px;
  color: #00695c;
  margin: 0;
  letter-spacing: 0.6px;
}

#page-kutipan .kutipan-pillars-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  width: 100%;
  max-width: 1200px;
}

#page-kutipan .kutipan-pillar-card {
  background: #ffffff;
  border-radius: 16px;
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 14px;
  text-align: left;
  border: 1.5px solid rgba(0, 172, 193, 0.18);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.04);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.3s ease;
}

#page-kutipan .kutipan-pillar-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 26px rgba(0, 172, 193, 0.18);
  border-color: var(--teal);
}

#page-kutipan .pillar-icon-box {
  width: 48px;
  height: 48px;
  min-width: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

#page-kutipan .pillar-icon-box.p-cyan {
  background: linear-gradient(135deg, #e0f7fa, #b2ebf2);
  border: 1px solid #80deea;
}

#page-kutipan .pillar-icon-box.p-gold {
  background: linear-gradient(135deg, #fef3c7, #fde68a);
  border: 1px solid #fcd34d;
}

#page-kutipan .pillar-icon-box.p-green {
  background: linear-gradient(135deg, #dcfce7, #bbf7d0);
  border: 1px solid #86efac;
}

#page-kutipan .pillar-content h4 {
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 800;
  color: #004d40;
  margin: 0 0 3px 0;
}

#page-kutipan .pillar-content p {
  font-family: var(--font-body);
  font-size: 12.5px;
  color: #475569;
  line-height: 1.35;
  margin: 0;
}

/* ---------- Page 19: Kredit / Penutup ---------- */
#page-kredit .content-box {
  width: 95%;
  max-width: 1400px;
  min-height: 640px;
  height: 640px;
  max-height: calc(100vh - 150px);
  padding: 36px 60px !important;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}

#page-kredit .logo-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 52px;
  flex-wrap: wrap;
  margin-bottom: 28px;
  width: 100%;
}

#page-kredit .logo-row img {
  max-height: 120px;
  max-width: 250px;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.08));
  transition: transform var(--transition);
}

#page-kredit .logo-row img:hover {
  transform: scale(1.06);
}

#page-kredit .kredit-divider {
  width: 75%;
  max-width: 900px;
  height: 3.5px;
  background: linear-gradient(90deg, transparent, var(--teal), transparent);
  margin: 0 auto 24px;
}

#page-kredit .kredit-text {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

#page-kredit .kredit-title {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 800;
  color: #004d40;
  letter-spacing: 1.5px;
  margin: 0;
  text-shadow: 0 1px 2px rgba(255, 255, 255, 0.8);
}

#page-kredit .kredit-ditjen {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: #006064;
  line-height: 1.5;
  max-width: 1150px;
  margin: 0;
}

#page-kredit .kredit-smp {
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: 800;
  color: var(--teal-dark);
  letter-spacing: 2px;
  margin: 6px 0 0;
}

/* ---------- Animations Keyframes ---------- */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes popIn {
  0% {
    opacity: 0;
    transform: scale(0.65);
  }

  70% {
    transform: scale(1.06);
  }

  100% {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes shake {

  0%,
  100% {
    transform: translateX(0);
  }

  20% {
    transform: translateX(-10px);
  }

  40% {
    transform: translateX(10px);
  }

  60% {
    transform: translateX(-8px);
  }

  80% {
    transform: translateX(8px);
  }
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-16px);
  }
}

@keyframes sparkle {

  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.6;
    transform: scale(1.18);
  }
}

@keyframes blink {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.25;
  }
}

@keyframes confettiFall {
  0% {
    opacity: 1;
    transform: translateY(-15vh) rotate(0deg);
  }

  100% {
    opacity: 0;
    transform: translateY(105vh) rotate(720deg);
  }
}

/* ---------- Responsive Scaling for Smaller Displays ---------- */
@media (max-width: 1200px) {
  #page-cover .cover-title {
    font-size: 46px;
  }

  .title-bar {
    font-size: 28px;
    padding: 10px 40px;
  }

  .content-box {
    padding: 36px 36px 24px;
  }

  .content-box p,
  .content-box li {
    font-size: 18px;
  }

  .menu-grid {
    gap: 16px;
  }

  .menu-card {
    padding: 18px 14px;
    min-height: 170px;
  }

  .menu-card .card-icon {
    font-size: 76px;
  }

  .menu-card .card-label {
    font-size: 20px;
  }

  .materi-card .card-title {
    font-size: 21px;
  }

  .materi-card .card-desc {
    font-size: 15px;
  }

  .materi-card .card-thumb {
    width: 180px;
    min-width: 180px;
  }

  .nav-arrow {
    width: 62px;
    height: 62px;
    font-size: 26px;
  }
}

@media (max-width: 900px) {
  .content-columns {
    grid-template-columns: 1fr;
  }

  .content-img-text {
    grid-template-columns: 1fr;
  }

  .video-layout {
    grid-template-columns: 1fr;
  }

  .dev-layout {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .dev-photo {
    margin: 0 auto;
  }

  .pj-layout {
    grid-template-columns: 1fr;
  }

  .menu-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .menu-card .card-icon {
    font-size: 64px;
  }

  .petunjuk-grid {
    grid-template-columns: 1fr;
  }

  .materi-cards {
    grid-template-columns: 1fr;
  }

  .materi-card {
    flex-direction: column;
  }

  .materi-card .card-thumb {
    width: 100%;
    min-width: 100%;
    height: 180px;
    border-radius: 20px 20px 0 0;
  }

  .rangkuman-points {
    flex-direction: column;
  }

  .match-container {
    grid-template-columns: 1fr;
  }

  .dd-container {
    grid-template-columns: 1fr;
  }

  #page-cover .cover-title {
    font-size: 36px;
  }

  .badge-fase {
    right: 20px;
  }

  .logo-top img {
    height: 50px;
  }
}

/* ============================================================
   SMART HOME IOT LAB / SIMULATOR STYLES
   ============================================================ */

.game-arena-wrapper {
  display: grid;
  grid-template-columns: 260px 1fr 280px;
  gap: 16px;
  min-height: 380px;
  align-items: stretch;
}

.game-panel-left,
.game-panel-right {
  background: rgba(255, 255, 255, 0.78);
  border: 2px solid rgba(0, 172, 193, 0.35);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 4px 14px var(--shadow-light);
  overflow-y: auto;
}

.game-panel-left .panel-header,
.game-panel-right .panel-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  border-bottom: 2px solid rgba(0, 172, 193, 0.2);
  padding-bottom: 8px;
}

.game-panel-left .panel-header h4,
.game-panel-right .panel-header h4 {
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 700;
  color: var(--teal-dark);
  margin: 0;
}

.sensor-control-card {
  background: var(--white);
  border: 1.5px solid #cbd5e1;
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  margin-bottom: 12px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
}

.sensor-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
  line-height: 1.4;
}

.game-slider {
  width: 100%;
  accent-color: var(--teal);
  cursor: pointer;
}

.slider-ticks {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
  font-weight: 600;
}

.rule-block-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
  text-align: left;
}

.rule-keyword {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 13px;
  color: var(--teal-dark);
}

.rule-select {
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--teal);
  font-family: var(--font-body);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-dark);
  background: var(--white);
  outline: none;
  cursor: pointer;
}

.rule-fixed-text {
  background: #f1f5f9;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border: 1.5px solid #cbd5e1;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-muted);
}

.game-stage-center {
  background: rgba(255, 255, 255, 0.65);
  border: 2.5px solid rgba(0, 172, 193, 0.35);
  border-radius: var(--radius-md);
  padding: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 14px var(--shadow-light);
}

.house-visual-container {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.room-box {
  width: 92%;
  height: 92%;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(224, 247, 250, 0.9) 100%);
  border: 3px solid var(--teal);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  box-shadow: 0 8px 24px rgba(0, 172, 193, 0.15);
}

.room-title {
  position: absolute;
  top: 14px;
  left: 18px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 18px;
  color: var(--teal-dark);
}

.appliance-lamp,
.appliance-fan,
.appliance-alarm {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}

.lamp-bulb {
  font-size: 76px;
  transition: all 0.3s ease;
  z-index: 3;
}

.appliance-lamp.active .lamp-bulb {
  transform: scale(1.15);
  filter: drop-shadow(0 0 16px #ffeb3b);
}

.lamp-glow {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 235, 59, 0.8) 0%, rgba(255, 235, 59, 0) 70%);
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0);
  transition: transform 0.4s ease;
  pointer-events: none;
  z-index: 2;
}

.lamp-glow.glow {
  transform: translate(-50%, -50%) scale(1.6);
}

.fan-blade {
  font-size: 80px;
  transition: transform 0.3s ease;
  z-index: 3;
}

.fan-blade.spinning {
  animation: spinFan 0.25s linear infinite;
}

@keyframes spinFan {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

.alarm-siren {
  font-size: 76px;
  z-index: 3;
}

.alarm-siren.alarming {
  animation: sirenFlash 0.3s infinite alternate;
}

@keyframes sirenFlash {
  0% {
    transform: scale(1);
    filter: drop-shadow(0 0 4px #d32f2f);
  }

  100% {
    transform: scale(1.28);
    filter: drop-shadow(0 0 24px #d32f2f);
  }
}

.lamp-status,
.fan-status,
.alarm-status {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 17px;
  margin-top: 14px;
  color: var(--teal-dark);
}

/* Rule Option Card (Bagian E) */
.rule-option-card {
  background: var(--white);
  border: 2.5px solid #cbd5e1;
  border-radius: var(--radius-md);
  padding: 18px 16px;
  cursor: pointer;
  transition: all 0.25s ease;
  text-align: center;
  box-shadow: 0 3px 10px var(--shadow-light);
}

.rule-option-card:hover {
  transform: translateY(-3px);
  border-color: var(--teal);
  box-shadow: 0 6px 16px var(--shadow-light);
}

.rule-option-card.selected {
  border-color: var(--teal);
  background: var(--cyan-light);
  box-shadow: 0 0 0 4px rgba(0, 172, 193, 0.35);
}


/* ============================================================
   MATERI 1 MODERN TABBED LAYOUT STYLES
   ============================================================ */

.materi-tabs-bar {
  display: flex;
  justify-content: center;
  gap: 12px;
  background: rgba(0, 172, 193, 0.12);
  padding: 6px 10px;
  border-radius: var(--radius-pill);
  border: 2px solid rgba(0, 172, 193, 0.35);
  margin: 0 auto 16px;
  width: fit-content;
}

.mtab-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: var(--radius-pill);
  border: none;
  background: transparent;
  color: var(--teal-dark);
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s ease;
  user-select: none;
}

.mtab-btn:hover {
  background: rgba(0, 172, 193, 0.2);
  transform: translateY(-1px);
}

.mtab-btn.active {
  background: linear-gradient(135deg, #00838F 0%, #0288D1 100%);
  color: var(--white);
  box-shadow: 0 4px 14px rgba(0, 131, 143, 0.4);
}

.mtab-panel {
  display: none;
  width: 100%;
  animation: fadeInMtab 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

.mtab-panel.active {
  display: block;
}

@keyframes fadeInMtab {
  from {
    opacity: 0;
    transform: translateY(6px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.story-lead {
  display: flex;
  align-items: center;
  gap: 14px;
  background: linear-gradient(135deg, #e0f7fa 0%, #e0f2fe 100%);
  border-left: 5px solid var(--teal);
  border-radius: 12px;
  padding: 14px 20px;
  margin-bottom: 18px;
  box-shadow: 0 2px 8px rgba(0, 172, 193, 0.1);
}

.story-lead-icon {
  font-size: 32px;
  flex-shrink: 0;
}

.story-lead-text {
  font-size: 16.5px;
  line-height: 1.55;
  color: var(--text-dark);
}

.concept-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.concept-card {
  background: var(--white);
  border: 2px solid rgba(0, 172, 193, 0.3);
  border-radius: var(--radius-md);
  padding: 20px 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  box-shadow: 0 4px 14px var(--shadow-light);
  transition: all 0.25s ease;
}

.concept-card:hover {
  transform: translateY(-4px);
  border-color: var(--teal);
  box-shadow: 0 8px 20px var(--shadow-light);
}

.concept-card-icon {
  font-size: 44px;
  margin-bottom: 10px;
}

.concept-card-title {
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 800;
  color: var(--teal-dark);
  margin-bottom: 8px;
}

.concept-card-desc {
  font-size: 15px;
  line-height: 1.5;
  color: var(--text-body);
}

.analogy-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.analogy-box {
  background: var(--white);
  border: 2px solid rgba(0, 172, 193, 0.3);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  box-shadow: 0 4px 14px var(--shadow-light);
}

.analogy-badge {
  display: inline-block;
  background: var(--teal-dark);
  color: var(--white);
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 800;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.5px;
}

.feature-steps {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  background: var(--white);
  border: 2px solid rgba(0, 172, 193, 0.3);
  border-radius: var(--radius-md);
  padding: 20px 16px;
  box-shadow: 0 4px 14px var(--shadow-light);
}

.fstep-item {
  flex: 1;
  text-align: center;
  padding: 10px 8px;
}

.fstep-badge {
  display: inline-block;
  background: var(--cyan-light);
  border: 1.5px solid var(--teal);
  color: var(--teal-dark);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 13px;
  padding: 3px 12px;
  border-radius: var(--radius-pill);
  margin-bottom: 8px;
}

.fstep-item h4 {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  color: var(--teal-dark);
  margin-bottom: 6px;
}

.fstep-item p {
  font-size: 14px;
  line-height: 1.45;
  color: var(--text-body);
}

.fstep-arrow {
  font-size: 22px;
  color: var(--teal);
  font-weight: 800;
}

/* ============================================================
   TARIK JAWABAN (DRAG & DROP) MODERN STYLES
   ============================================================ */

#page-tarik-jawaban .content-box {
  padding: 16px 28px 24px !important;
}

.dd-container {
  display: grid !important;
  grid-template-columns: 1fr 2fr !important;
  gap: 24px !important;
  width: 100% !important;
  max-width: 1400px !important;
  margin: 10px auto 16px !important;
}

.dd-column {
  background: rgba(255, 255, 255, 0.94) !important;
  border: 2.5px solid rgba(0, 172, 193, 0.4) !important;
  border-radius: 16px !important;
  padding: 14px 18px !important;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06) !important;
  display: flex !important;
  flex-direction: column !important;
  gap: 10px !important;
}

.dd-column h3 {
  font-family: var(--font-heading) !important;
  font-size: 19px !important;
  color: var(--teal-dark) !important;
  margin-bottom: 2px !important;
  text-align: center !important;
  padding-bottom: 8px !important;
  border-bottom: 2px dashed rgba(0, 172, 193, 0.35) !important;
}

.dd-item {
  background: linear-gradient(135deg, #ffffff 0%, #e0f7fa 100%) !important;
  border: 2px solid var(--teal) !important;
  border-radius: var(--radius-pill) !important;
  padding: 8px 16px !important;
  font-family: var(--font-heading) !important;
  font-size: 15px !important;
  font-weight: 700 !important;
  color: var(--teal-dark) !important;
  cursor: grab !important;
  user-select: none !important;
  box-shadow: 0 3px 8px var(--shadow-light) !important;
  display: flex !important;
  align-items: center !important;
  gap: 8px !important;
  transition: all 0.2s ease !important;
}

.dd-item:hover {
  transform: translateY(-2px) !important;
  box-shadow: 0 6px 14px var(--shadow-light) !important;
  background: #00ACC1 !important;
  color: #ffffff !important;
}

.dd-item:active {
  cursor: grabbing !important;
}

.dd-item.dragging {
  opacity: 0.45 !important;
  transform: scale(0.96) !important;
}

.dd-grip {
  font-size: 16px !important;
  opacity: 0.6 !important;
}

.dd-drop-zone {
  background: var(--white) !important;
  border: 2px solid rgba(0, 172, 193, 0.3) !important;
  border-radius: 12px !important;
  padding: 8px 14px !important;
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  gap: 14px !important;
  box-shadow: 0 2px 6px var(--shadow-light) !important;
  transition: all 0.25s ease !important;
  min-height: 54px !important;
}

.dd-drop-zone.over {
  border-color: #0288D1 !important;
  background: #e0f2fe !important;
  transform: scale(1.01) !important;
  box-shadow: 0 0 0 3px rgba(2, 136, 209, 0.35) !important;
}

.dd-drop-zone.correct {
  border-color: #2e7d32 !important;
  background: #e8f5e9 !important;
}

.dd-drop-zone.wrong {
  border-color: #c62828 !important;
  background: #ffebee !important;
}

.dd-def-desc {
  flex: 1 !important;
  font-size: 14px !important;
  line-height: 1.4 !important;
  color: var(--text-dark) !important;
}

.dd-slot {
  width: 200px !important;
  min-height: 42px !important;
  background: rgba(0, 172, 193, 0.08) !important;
  border: 2px dashed var(--teal) !important;
  border-radius: var(--radius-pill) !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  padding: 3px 6px !important;
  flex-shrink: 0 !important;
}

.dd-placeholder {
  font-size: 13px !important;
  color: #78909c !important;
  font-style: italic !important;
}

.dd-slot .dd-item {
  width: 100% !important;
  justify-content: center !important;
  padding: 5px 12px !important;
  font-size: 14px !important;
  box-shadow: none !important;
}

.dd-score-box {
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 16px !important;
  background: linear-gradient(135deg, #e0f7fa 0%, #e0f2fe 100%) !important;
  border: 2.5px solid var(--teal) !important;
  border-radius: var(--radius-pill) !important;
  padding: 8px 24px !important;
  margin: 10px auto 6px !important;
  width: fit-content !important;
}

.dd-score-badge {
  font-family: var(--font-heading) !important;
  font-size: 18px !important;
  font-weight: 800 !important;
  color: var(--teal-dark) !important;
}

.dd-score-text {
  font-size: 15px !important;
  font-weight: 600 !important;
  color: #01579b !important;
}

.dd-actions {
  display: flex !important;
  justify-content: center !important;
  gap: 16px !important;
  margin-top: 10px !important;
}

/* ============================================================
   SMART HOME ACTIVITY — Visual Drag & Drop Components
   ============================================================ */
.smart-home-activity {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.component-palette {
  flex: 0 0 230px;
  background: rgba(224, 247, 250, 0.6);
  border: 2px dashed var(--teal);
  border-radius: var(--radius-md);
  padding: 10px;
}

.component-palette-grid {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.component-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  cursor: grab;
  transition: var(--transition);
  border: 2px solid transparent;
  user-select: none;
}

.component-chip:active { cursor: grabbing; }

.component-chip.sensor-chip {
  background: linear-gradient(135deg, #e1f5fe, #b3e5fc);
  border-color: #0288D1;
}

.component-chip.actuator-chip {
  background: linear-gradient(135deg, #fff3e0, #ffe0b2);
  border-color: #e65100;
}

.component-chip:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.component-chip.dragging {
  opacity: 0.5;
  transform: scale(0.95);
}

.chip-icon { font-size: 20px; flex-shrink: 0; }
.chip-label { font-weight: 700; font-size: 13px; color: var(--text-dark); }
.chip-desc { font-size: 10px; color: var(--text-muted); display: block; margin-top: 1px; }

.room-zones {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.room-card {
  background: rgba(255,255,255,0.92);
  border: 2px solid #e0e0e0;
  border-radius: var(--radius-md);
  padding: 8px 12px;
  transition: var(--transition);
}

.room-card.drag-over {
  border-color: var(--teal);
  background: rgba(224, 247, 250, 0.5);
  box-shadow: 0 0 0 3px rgba(0,172,193,0.2);
}

.room-header {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 4px;
}

.room-icon { font-size: 22px; }
.room-name { font-weight: 800; font-size: 15px; color: var(--teal-dark); font-family: var(--font-heading); }
.room-need { font-size: 11px; color: var(--text-muted); margin-bottom: 6px; font-style: italic; }

.room-slots {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.room-slot {
  min-height: 38px;
  border: 2px dashed #bdbdbd;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  padding: 4px 8px;
  position: relative;
}

.room-slot.sensor-slot { background: rgba(179,229,252,0.15); }
.room-slot.actuator-slot { background: rgba(255,224,178,0.15); }

.room-slot.drag-over {
  border-color: var(--teal);
  background: rgba(0,172,193,0.1);
  box-shadow: inset 0 0 0 2px rgba(0,172,193,0.15);
}

.room-slot.filled {
  border-style: solid;
  border-color: #4caf50;
  background: rgba(76,175,80,0.08);
}

.room-slot.filled.wrong {
  border-color: #f44336;
  background: rgba(244,67,54,0.08);
}

.slot-label {
  font-size: 12px;
  color: #9e9e9e;
  font-style: italic;
}

.slot-filled-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 14px;
  color: var(--text-dark);
  width: 100%;
}

.slot-filled-chip .slot-remove {
  margin-left: auto;
  cursor: pointer;
  font-size: 16px;
  color: #f44336;
  opacity: 0.7;
  transition: var(--transition);
}

.slot-filled-chip .slot-remove:hover { opacity: 1; }

/* ============================================================
   4-STAGE GAME — Styles & HUD
   ============================================================ */
.game-hud-box {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  background: rgba(255, 255, 255, 0.95);
  border: 2px solid rgba(0, 172, 193, 0.25);
  border-radius: var(--radius-md);
  padding: 10px 18px;
  margin-bottom: 12px;
  box-shadow: 0 4px 16px rgba(0, 172, 193, 0.12);
  flex-wrap: wrap;
}

.game-level-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.game-tab-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: #f1f5f9;
  border: 2px solid #cbd5e1;
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 700;
  color: var(--text-dark);
  cursor: pointer;
  transition: all 0.25s ease;
  user-select: none;
}

.game-tab-btn .tab-subtitle {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
}

.game-tab-btn .tab-star {
  font-size: 12px;
  font-weight: 800;
  color: #f57f17;
  background: rgba(245, 127, 23, 0.12);
  padding: 2px 6px;
  border-radius: 8px;
}

.game-tab-btn .tab-lock {
  font-size: 13px;
}

.game-tab-btn:hover:not(.locked) {
  background: rgba(0, 172, 193, 0.12);
  border-color: var(--teal);
  transform: translateY(-2px);
}

.game-tab-btn.active {
  background: linear-gradient(135deg, var(--teal) 0%, var(--teal-dark) 100%);
  border-color: var(--teal-dark);
  color: var(--white);
  box-shadow: 0 4px 14px rgba(0, 172, 193, 0.35);
  transform: translateY(-2px);
}

.game-tab-btn.active .tab-subtitle {
  color: rgba(255, 255, 255, 0.9);
}

.game-tab-btn.active .tab-star {
  background: rgba(255, 255, 255, 0.25);
  color: #fff;
}

.game-tab-btn.locked {
  opacity: 0.5;
  cursor: not-allowed;
  background: #f8fafc;
  border-color: #e2e8f0;
}

.game-status-bar {
  display: flex;
  gap: 10px;
  align-items: center;
}

.game-status-bar .status-badge {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  background: rgba(224, 247, 250, 0.5);
  border: 1.5px solid rgba(0, 172, 193, 0.2);
  border-radius: var(--radius-sm);
  padding: 4px 12px;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
}

.game-status-bar .status-badge strong {
  font-size: 14px;
  font-weight: 800;
  color: var(--teal-dark);
}

.game-instruction-callout {
  display: flex;
  align-items: center;
  gap: 12px;
  background: linear-gradient(90deg, rgba(224, 247, 250, 0.95) 0%, rgba(255, 255, 255, 0.95) 100%);
  border-left: 5px solid var(--teal);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  margin-bottom: 14px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.game-instruction-callout .callout-icon {
  font-size: 24px;
  flex-shrink: 0;
}

.game-instruction-callout .callout-text {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-dark);
  line-height: 1.45;
}

.game-stage-panel {
  display: none;
  padding: 12px 16px;
}

.game-stage-panel.active {
  display: block;
}

.game-controls-bottom {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1.5px dashed rgba(0, 172, 193, 0.25);
}

/* --- Game Feedback & Victory Modal --- */
.game-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 20, 30, 0.65);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.game-modal-overlay.show {
  opacity: 1;
  pointer-events: auto;
}

.game-modal-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 3px solid var(--teal);
  padding: 32px 40px;
  max-width: 520px;
  width: 90%;
  text-align: center;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.35);
  transform: scale(0.85);
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.game-modal-overlay.show .game-modal-card {
  transform: scale(1);
}

.game-modal-card .gm-icon {
  font-size: 56px;
  margin-bottom: 12px;
}

.game-modal-card .gm-title {
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 10px;
  color: var(--teal-dark);
}

.game-modal-card .gm-title.success {
  color: #2e7d32;
}

.game-modal-card .gm-title.warning {
  color: #e65100;
}

.game-modal-card .gm-title.error {
  color: #c62828;
}

.game-modal-card .gm-text {
  font-size: 16px;
  line-height: 1.55;
  color: var(--text-body);
  margin-bottom: 22px;
}

.game-modal-card .gm-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* --- Stage 1: Dekomposisi --- */
.decomp-game {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.decomp-items {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  padding: 14px;
  background: rgba(224,247,250,0.4);
  border-radius: var(--radius-md);
  border: 2px dashed #b0bec5;
  min-height: 60px;
}

.decomp-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: white;
  border: 2px solid var(--teal);
  border-radius: var(--radius-pill);
  cursor: grab;
  font-weight: 600;
  font-size: 14px;
  color: var(--text-dark);
  transition: var(--transition);
  user-select: none;
}

.decomp-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,172,193,0.2);
}

.decomp-item:active { cursor: grabbing; }
.decomp-item.dragging { opacity: 0.4; }

.decomp-item .di-icon { font-size: 20px; }

.decomp-categories {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 14px;
}

.decomp-category {
  border: 2px dashed #bdbdbd;
  border-radius: var(--radius-md);
  min-height: 120px;
  transition: var(--transition);
}

.decomp-category.drag-over {
  border-color: var(--teal);
  background: rgba(0,172,193,0.06);
  box-shadow: 0 0 0 3px rgba(0,172,193,0.15);
}

.decomp-cat-header {
  text-align: center;
  padding: 10px;
  font-weight: 700;
  font-size: 14px;
  color: var(--teal-dark);
  background: rgba(224,247,250,0.5);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  border-bottom: 1px solid #e0e0e0;
}

.decomp-cat-drop {
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 80px;
}

.decomp-cat-drop .decomp-item {
  cursor: default;
  border-color: #4caf50;
  background: rgba(76,175,80,0.06);
}

.decomp-cat-drop .decomp-item.wrong {
  border-color: #f44336;
  background: rgba(244,67,54,0.06);
}

/* --- Stage 2: Abstraksi --- */
.abstraction-game {
  padding: 10px 0;
}

.abstraction-scenario {
  font-size: 16px;
  line-height: 1.5;
  color: var(--text-body);
  margin-bottom: 16px;
  text-align: center;
  padding: 12px 16px;
  background: rgba(224,247,250,0.5);
  border-radius: var(--radius-sm);
}

.abstraction-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.abstraction-card {
  padding: 16px 14px;
  border: 2px solid #e0e0e0;
  border-radius: var(--radius-md);
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  background: white;
  user-select: none;
}

.abstraction-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.abstraction-card .ac-icon { font-size: 28px; display: block; margin-bottom: 6px; }
.abstraction-card .ac-text { font-size: 13px; font-weight: 600; color: var(--text-dark); }

.abstraction-card.selected-important {
  border-color: #4caf50;
  background: rgba(76,175,80,0.08);
  box-shadow: 0 0 0 3px rgba(76,175,80,0.15);
}

.abstraction-card.selected-important::after {
  content: '✅ PENTING';
  display: block;
  margin-top: 8px;
  font-size: 11px;
  font-weight: 700;
  color: #2e7d32;
}

.abstraction-card.selected-not-important {
  border-color: #f44336;
  background: rgba(244,67,54,0.06);
  opacity: 0.65;
}

.abstraction-card.selected-not-important::after {
  content: '❌ TIDAK PENTING';
  display: block;
  margin-top: 8px;
  font-size: 11px;
  font-weight: 700;
  color: #c62828;
}

.abstraction-card.correct-answer {
  border-color: #4caf50 !important;
  background: rgba(76,175,80,0.12) !important;
  opacity: 1 !important;
}

.abstraction-card.wrong-answer {
  border-color: #f44336 !important;
  background: rgba(244,67,54,0.12) !important;
  opacity: 1 !important;
}

/* --- Stage 3: Pengenalan Pola --- */
.pattern-game {
  padding: 10px 0;
}

.pattern-intro {
  font-size: 15px;
  line-height: 1.5;
  color: var(--text-body);
  margin-bottom: 14px;
  text-align: center;
}

.pattern-timeline-container {
  background: white;
  border: 2px solid #e0e0e0;
  border-radius: var(--radius-md);
  padding: 16px;
  margin-bottom: 16px;
  position: relative;
  height: 200px;
}

.pattern-timeline-container canvas {
  width: 100%;
  height: 100%;
}

.pattern-questions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

.pattern-q {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
  min-width: 200px;
}

.pattern-q label {
  font-weight: 600;
  font-size: 14px;
  color: var(--teal-dark);
}

.pattern-select {
  padding: 10px 14px;
  border: 2px solid #bdbdbd;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: var(--font-body);
  cursor: pointer;
  transition: var(--transition);
  background: white;
}

.pattern-select:focus {
  border-color: var(--teal);
  outline: none;
  box-shadow: 0 0 0 3px rgba(0,172,193,0.15);
}

.pattern-select.correct { border-color: #4caf50; background: rgba(76,175,80,0.06); }
.pattern-select.wrong { border-color: #f44336; background: rgba(244,67,54,0.06); }

/* --- Stage 4: Algoritma (3-Column Horizontal Grid) --- */
.algo-game {
  padding: 2px 0 0;
}

.algo-intro {
  font-size: 14.5px;
  line-height: 1.4;
  color: var(--text-body);
  margin-bottom: 8px;
  text-align: center;
}

.algo-challenges {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.algo-challenge {
  background: rgba(224, 247, 250, 0.4);
  border: 1.5px solid rgba(0, 172, 193, 0.35);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}

.algo-challenge-title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 14.5px;
  color: var(--teal-dark);
  margin-bottom: 2px;
  text-align: center;
}

.algo-slots {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 8px 10px;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 8px;
  border: 1.5px dashed #90a4ae;
  min-height: 110px;
  justify-content: center;
}

.algo-static {
  padding: 2px 8px;
  font-weight: 800;
  font-size: 12.5px;
  color: #0288D1;
  background: #e1f5fe;
  border-radius: 4px;
  width: fit-content;
}

.algo-slot {
  width: 100%;
  box-sizing: border-box;
  min-height: 32px;
  border: 1.5px dashed #90a4ae;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12.5px;
  color: #78909c;
  transition: var(--transition);
  padding: 5px 8px;
  text-align: center;
  background: #f8fafc;
}

.algo-slot.drag-over {
  border-color: var(--teal);
  background: rgba(0, 172, 193, 0.12);
}

.algo-slot.filled {
  border-style: solid;
  border-color: #1976d2;
  color: #0d47a1;
  font-weight: 700;
  background: #e3f2fd;
  cursor: pointer;
}

.algo-slot.correct {
  border-color: #2e7d32 !important;
  background: #e8f5e9 !important;
  color: #1b5e20 !important;
}

.algo-slot.wrong {
  border-color: #c62828 !important;
  background: #ffebee !important;
  color: #b71c1c !important;
}

.algo-blocks {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
  justify-content: center;
}

.algo-block {
  padding: 6px 12px;
  background: linear-gradient(135deg, #ffffff 0%, #e3f2fd 100%);
  border: 1.5px solid #1976d2;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 12px;
  color: #0d47a1;
  cursor: grab;
  transition: var(--transition);
  user-select: none;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
}

.algo-block:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(25, 118, 210, 0.25);
  background: #e3f2fd;
}

.algo-block:active { cursor: grabbing; }
.algo-block.dragging { opacity: 0.4; }
.algo-block.used { opacity: 0.25; pointer-events: none; }

/* ============================================================
   PAGE 6: MATERI 1 — 4 MAIN TABS & 2-STEP GUIDED STEPPER
   ============================================================ */

/* Page 6 Title Bar & Content Box Expansion */
#page-materi-1 .title-bar {
  margin-top: 40px;
  margin-bottom: 10px;
}

#content-materi-1 {
  width: 95%;
  max-width: 1480px;
  min-height: 540px;
  max-height: calc(100vh - 120px);
  padding: 18px 40px 16px;
}

/* Main Tabs Bar */
.materi-tabs-bar {
  display: flex;
  gap: 12px;
  background: rgba(224, 247, 250, 0.65);
  padding: 5px;
  border-radius: var(--radius-pill);
  border: 2px solid rgba(0, 172, 193, 0.3);
  margin-bottom: 14px;
  box-shadow: 0 4px 14px rgba(0, 172, 193, 0.08);
  flex-wrap: wrap;
  justify-content: center;
}

.mtab-btn {
  padding: 8px 24px;
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 800;
  color: var(--text-dark);
  background: transparent;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.25s ease;
  user-select: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.mtab-btn:hover {
  background: rgba(0, 172, 193, 0.15);
  color: var(--teal-dark);
  transform: translateY(-2px);
}

.mtab-btn.active {
  background: linear-gradient(135deg, var(--teal) 0%, var(--teal-dark) 100%);
  color: var(--white);
  border-color: var(--teal-dark);
  box-shadow: 0 4px 12px rgba(0, 172, 193, 0.35);
  transform: translateY(-1px);
}

/* Main Tab Panels */
.mtab-panel {
  display: none;
  animation: fadeInMateri 0.3s ease;
}

.mtab-panel.active {
  display: block;
}

/* 2-Step Guided Stepper Bar */
.materi-stepper-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 14px;
  padding: 1px 0;
}

.mstep-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 20px;
  border-radius: var(--radius-pill);
  border: 2px solid #e2e8f0;
  background: #ffffff;
  cursor: pointer;
  transition: all 0.25s ease;
  user-select: none;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
}

.mstep-badge .msb-num {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #f1f5f9;
  color: #64748b;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 13.5px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s ease;
}

.mstep-badge .msb-text {
  font-family: var(--font-heading);
  font-size: 15.5px;
  font-weight: 700;
  color: #64748b;
  transition: all 0.25s ease;
}

.mstep-badge:hover {
  border-color: var(--teal);
  background: #f0fdfa;
  transform: translateY(-1px);
}

.mstep-badge:hover .msb-text {
  color: var(--teal-dark);
}

.mstep-badge.active {
  border-color: var(--teal);
  background: #e0f7fa;
  box-shadow: 0 3px 10px rgba(0, 172, 193, 0.25);
  transform: translateY(-1px);
}

.mstep-badge.active .msb-num {
  background: var(--teal);
  color: #ffffff;
}

.mstep-badge.active .msb-text {
  color: var(--teal-dark);
  font-weight: 800;
}

.mstep-divider {
  display: flex;
  align-items: center;
  color: #94a3b8;
  font-size: 18px;
  font-weight: 900;
}

/* Step Panels */
.mstep-panel {
  display: none;
  animation: fadeInMateri 0.25s ease;
}

.mstep-panel.active {
  display: block;
}

@keyframes fadeInMateri {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Story Lead Callout */
.story-lead {
  display: flex;
  align-items: center;
  gap: 16px;
  background: linear-gradient(135deg, rgba(224, 247, 250, 0.75) 0%, rgba(255, 255, 255, 0.95) 100%);
  border-left: 6px solid var(--teal);
  border-radius: var(--radius-sm);
  padding: 16px 24px;
  margin-bottom: 16px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}

.story-lead-icon {
  font-size: 36px;
  line-height: 1;
  flex-shrink: 0;
}

.story-lead-text {
  font-size: 17px;
  line-height: 1.6;
  color: var(--text-dark);
}

.story-lead-text strong {
  font-size: 19px;
  color: var(--teal-dark);
  font-family: var(--font-heading);
}

/* Section Header */
.materi-section-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 12px 0 14px;
}

.msh-badge {
  background: var(--teal);
  color: var(--white);
  font-size: 13px;
  font-weight: 800;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.5px;
}

.materi-section-header h3 {
  font-family: var(--font-heading);
  font-size: 19px;
  font-weight: 800;
  color: var(--teal-dark);
  margin: 0;
}

/* Analogy 3-Column Grid */
.analogy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-bottom: 16px;
}

.analogy-card {
  background: var(--white);
  border: 1.5px solid rgba(0, 172, 193, 0.25);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.analogy-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 172, 193, 0.16);
  border-color: var(--teal);
}

.analogy-card-icon {
  font-size: 28px;
}

.analogy-card-title {
  font-family: var(--font-heading);
  font-size: 16.5px;
  font-weight: 800;
  color: var(--teal-dark);
  margin: 0;
}

.analogy-card-desc {
  font-size: 14px;
  line-height: 1.45;
  color: var(--text-body);
  margin: 0;
}

.step-mini-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 4px 0;
  padding: 0;
}

.step-mini-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-dark);
}

.step-mini-list li span {
  width: 22px;
  height: 22px;
  background: #e0f2fe;
  color: #0288D1;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 800;
  flex-shrink: 0;
}

.analogy-tag {
  display: inline-block;
  background: rgba(46, 125, 50, 0.1);
  color: #2e7d32;
  font-size: 12.5px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 5px;
  margin-top: auto;
}

/* Analogy Detail Box (for Pola solutions/causes) */
.analogy-detail-box {
  font-size: 15px;
  color: var(--text-dark);
  background: rgba(0, 172, 193, 0.08);
  border-left: 3.5px solid var(--teal);
  padding: 8px 14px;
  border-radius: 4px;
  margin: 4px 0 6px;
  line-height: 1.5;
}

.analogy-detail-box strong {
  color: var(--teal-dark);
}

/* Compare Pills */
.compare-pills {
  display: flex;
  flex-direction: column;
  gap: 9px;
  margin: 6px 0 8px;
}

.pill-essential {
  background: #e8f5e9;
  color: #2e7d32;
  border: 1px solid #c8e6c9;
  border-radius: 6px;
  padding: 8px 14px;
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.4;
}

.pill-ignored {
  background: #ffebee;
  color: #c62828;
  border: 1px solid #ffcdd2;
  border-radius: 6px;
  padding: 8px 14px;
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.4;
}

/* Key Takeaway Banner */
.key-takeaway-banner {
  display: flex;
  align-items: center;
  gap: 16px;
  background: linear-gradient(135deg, rgba(255, 243, 224, 0.9) 0%, rgba(255, 255, 255, 0.95) 100%);
  border: 1.5px solid #ffb74d;
  border-radius: var(--radius-sm);
  padding: 14px 20px;
  margin-top: 14px;
  box-shadow: 0 2px 6px rgba(255, 152, 0, 0.1);
}

.ktb-icon {
  font-size: 28px;
  flex-shrink: 0;
}

.ktb-text {
  font-size: 15.5px;
  line-height: 1.55;
  color: #795548;
}

.ktb-text strong {
  color: #e65100;
}

/* IoT Flow Diagram */
.iot-flow-diagram {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.95);
  border: 1.5px solid rgba(0, 172, 193, 0.25);
  border-radius: var(--radius-sm);
  padding: 8px 18px;
  margin-bottom: 10px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}

.iot-flow-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 5px 16px;
  border-radius: var(--radius-sm);
  border: 1.5px solid transparent;
  min-width: 120px;
  text-align: center;
}

.iot-flow-step.input-step {
  background: #e1f5fe;
  border-color: #0288D1;
  color: #01579b;
}

.iot-flow-step.process-step {
  background: #e0f2f1;
  border-color: #00796b;
  color: #004d40;
}

.iot-flow-step.output-step {
  background: #fff3e0;
  border-color: #e65100;
  color: #bf360c;
}

.ifs-icon { font-size: 20px; }
.ifs-label { font-size: 14.5px; font-weight: 800; font-family: var(--font-heading); }
.ifs-sub { font-size: 11.5px; font-weight: 600; opacity: 0.85; }
.iot-flow-arrow { font-size: 18px; font-weight: 900; color: var(--teal); }

/* Concept Cards Grid (Input / Process / Output) */
.concept-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 10px;
}

.concept-card {
  background: var(--white);
  border: 1.5px solid rgba(0, 172, 193, 0.25);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.concept-card-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.concept-card-title {
  font-family: var(--font-heading);
  font-size: 15.5px;
  font-weight: 800;
  color: var(--teal-dark);
  margin: 0;
}

.concept-card-desc {
  font-size: 13.5px !important;
  line-height: 1.4;
  color: var(--text-body);
  margin: 0;
}

.component-examples {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 4px;
}

.ce-item {
  background: rgba(0, 0, 0, 0.03);
  border-left: 3px solid var(--teal);
  padding: 6px 12px;
  border-radius: 3px;
  font-size: 14px;
  color: var(--text-dark);
  line-height: 1.45;
}

/* Abstraction Comparison Box */
.abstraction-compare-box {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 18px;
  margin-bottom: 12px;
}

.ac-col {
  background: var(--white);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  border: 1.5px solid transparent;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}

.ac-col.essential {
  border-color: #81c784;
  background: linear-gradient(180deg, #ffffff 0%, #f1f8e9 100%);
}

.ac-col.ignored {
  border-color: #e0e0e0;
  background: linear-gradient(180deg, #ffffff 0%, #fafafa 100%);
}

.ac-header {
  margin-bottom: 8px;
}

.ac-badge {
  display: inline-block;
  background: #2e7d32;
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  padding: 3px 12px;
  border-radius: var(--radius-pill);
  margin-bottom: 4px;
}

.ac-badge.ignore {
  background: #757575;
}

.ac-header h4 {
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 700;
  color: var(--text-dark);
  margin: 0;
}

.ac-body {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.ac-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 16px;
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.ac-item.highlight {
  border-color: #81c784;
  background: #e8f5e9;
}

.ac-item.dim {
  opacity: 0.75;
  font-size: 14.5px;
  color: var(--text-muted);
}

.ac-check { font-size: 22px; flex-shrink: 0; }
.ac-item strong { font-size: 15.5px; color: var(--text-dark); display: block; }
.ac-item p { font-size: 14px; color: var(--text-body); margin: 0; }

/* IoT Benefit Cards */
.iot-benefit-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 12px;
}

.benefit-card {
  background: var(--white);
  border: 1.5px solid rgba(0, 172, 193, 0.25);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  text-align: center;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.03);
}

.bc-icon { font-size: 24px; display: block; margin-bottom: 3px; }
.benefit-card strong { font-size: 15px; color: var(--teal-dark); display: block; margin-bottom: 2px; }
.benefit-card p { font-size: 13.5px; color: var(--text-muted); margin: 0; line-height: 1.4; }

/* Pattern IoT Showcase */
.pattern-iot-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 16px;
}

.pattern-iot-card {
  background: var(--white);
  border: 1.5px solid rgba(0, 172, 193, 0.25);
  border-radius: var(--radius-sm);
  padding: 22px 24px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.pic-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px dashed #e0e0e0;
}

.pic-icon { font-size: 30px; }
.pic-header h4 { font-family: var(--font-heading); font-size: 18px; font-weight: 800; color: var(--teal-dark); margin: 0; }
.pic-sub { font-size: 14px; color: var(--text-muted); font-style: italic; }

.pic-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.pic-timeline-row {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 15.5px;
  padding: 9px 16px;
  background: #f8fafc;
  border-radius: 6px;
}

.pt-time {
  font-weight: 700;
  color: var(--teal-dark);
  font-size: 14.5px;
  min-width: 115px;
}

.pt-desc { color: var(--text-body); font-size: 15.5px; }

.pic-conclusion {
  margin-top: 10px;
  padding: 12px 18px;
  background: #e0f7fa;
  border-left: 4px solid var(--teal);
  border-radius: 6px;
  font-size: 15.5px;
  color: var(--teal-dark);
  line-height: 1.55;
}

/* Logic Types Grid */
.logic-types-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-bottom: 16px;
}

.logic-type-card {
  background: var(--white);
  border: 1.5px solid rgba(0, 172, 193, 0.25);
  border-radius: var(--radius-sm);
  padding: 22px 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.ltc-badge {
  font-size: 13px;
  font-weight: 800;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  width: fit-content;
  color: var(--white);
}

.ltc-badge.tunggal { background: #0288D1; }
.ltc-badge.majemuk { background: #00796b; }
.ltc-badge.cabang { background: #e65100; }

.ltc-title {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 800;
  color: var(--text-dark);
  margin: 0;
}

.ltc-rule {
  font-size: 15px;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.45;
}

.code-box-styled {
  background: #1e293b;
  color: #f8fafc;
  padding: 14px 18px;
  border-radius: 6px;
  font-family: 'Consolas', 'Courier New', monospace;
  font-size: 15px;
  line-height: 1.65;
  box-shadow: inset 0 1px 4px rgba(0, 0, 0, 0.25);
}

.code-box-styled .kw {
  color: #38bdf8;
  font-weight: 700;
}

.ltc-note {
  font-size: 14.5px;
  color: var(--text-body);
  line-height: 1.45;
  padding: 10px 16px;
  background: #f8fafc;
  border-radius: 6px;
  margin-top: auto;
}

.ltc-note.highlight {
  background: #fff3e0;
  color: #e65100;
  border-left: 3.5px solid #ff9800;
}

/* Step Action Bar (Bottom Navigation inside Step) */
.mstep-action-bar {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 14px;
  padding-top: 4px;
}

.mstep-action-bar.right {
  justify-content: flex-end;
}

.mstep-action-bar.split {
  justify-content: space-between;
}

.btn-step-action {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 24px;
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-size: 15.5px;
  font-weight: 800;
  cursor: pointer;
  transition: all 0.25s ease;
  user-select: none;
  border: none;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
}

.btn-step-back {
  background: #f1f5f9;
  color: var(--text-dark);
  border: 1.5px solid #cbd5e1;
}

.btn-step-back:hover {
  background: #e2e8f0;
  transform: translateX(-2px);
}

.btn-step-forward {
  background: linear-gradient(135deg, var(--teal) 0%, var(--teal-dark) 100%);
  color: var(--white);
  box-shadow: 0 4px 12px rgba(0, 172, 193, 0.35);
}

.btn-step-forward:hover {
  transform: translateX(2px);
  box-shadow: 0 6px 16px rgba(0, 172, 193, 0.5);
}

.btn-finish-materi {
  background: linear-gradient(135deg, #f57f17 0%, #e65100 100%);
  color: var(--white);
  box-shadow: 0 4px 12px rgba(230, 81, 0, 0.35);
}

.btn-finish-materi:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(230, 81, 0, 0.5);
}

.bsa-icon {
  font-size: 16px;
}

/* ============================================================
   PAGE 7: VIDEO PEMBELAJARAN LAYOUT
   ============================================================ */
#page-video .title-bar {
  margin-top: -66px;
  margin-bottom: 12px;
}

#content-video {
  width: 95%;
  max-width: 1440px;
  min-height: 520px;
  max-height: calc(100vh - 130px);
  padding: 20px 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.video-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 28px;
  align-items: center;
  width: 100%;
}

.video-wrapper {
  background: #0f172a;
  border-radius: var(--radius-md);
  border: 3px solid rgba(0, 172, 193, 0.4);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 16 / 9;
  max-height: 440px;
}

.video-wrapper video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.video-info {
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: rgba(255, 255, 255, 0.95);
  border: 2px solid rgba(0, 172, 193, 0.3);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
}

.video-title {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 800;
  color: var(--teal-dark);
  margin: 0;
}

.video-desc {
  font-size: 15px;
  line-height: 1.55;
  color: var(--text-dark);
  margin: 0;
}

.video-highlights {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 4px;
}

.highlight-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  line-height: 1.45;
  color: var(--text-dark);
  background: #f8fafc;
  padding: 8px 12px;
  border-radius: 6px;
  border-left: 3.5px solid var(--teal);
}

.highlight-item .hl-icon {
  font-size: 18px;
  flex-shrink: 0;
  line-height: 1.2;
}

.highlight-item strong {
  color: var(--teal-dark);
}

/* ============================================================
   PAGE 8: DD-ACTIONS & SCORE-BOX INSIDE ROOM-ZONES
   ============================================================ */
.room-zones .dd-score-box {
  grid-column: 1 / -1 !important;
  width: 100% !important;
  box-sizing: border-box !important;
  margin: 8px 0 0 0 !important;
  justify-content: center !important;
  box-shadow: 0 4px 16px rgba(0, 172, 193, 0.2) !important;
}

.room-zones .dd-actions {
  grid-column: 1 / -1 !important;
  width: 100% !important;
  box-sizing: border-box !important;
  margin: 8px 0 0 0 !important;
  display: flex !important;
  justify-content: center !important;
  gap: 16px !important;
}

/* ============================================================
   PAGE 9: INTRO STAGES PILLS
   ============================================================ */
.intro-stages-pills {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin: 10px 0 16px;
}

.isp-item {
  background: var(--white);
  border: 2px solid var(--teal);
  color: var(--teal-dark);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 15px;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  box-shadow: 0 3px 8px rgba(0, 172, 193, 0.15);
}

.isp-arrow {
  color: var(--teal);
  font-size: 18px;
  font-weight: 900;
}

/* ============================================================
   PAGE 10: PERMAINAN (ZERO-SCROLL OPTIMIZATION)
   ============================================================ */
#page-permainan .title-bar {
  margin-top: -86px;
  margin-bottom: 8px;
}

#game-main-container {
  padding: 14px 24px 12px !important;
  max-height: calc(100vh - 170px) !important;
}

.game-controls-bottom {
  margin-top: 10px !important;
  padding-top: 8px !important;
  gap: 14px !important;
}

.game-controls-bottom .btn {
  padding: 10px 24px !important;
  font-size: 15.5px !important;
}

/* ============================================================
   PAGES 13-18: RANGKUMAN, PENGEMBANG, PJ, KUTIPAN, KREDIT
   ============================================================ */

/* ---------- Page 13: Rangkuman Zero-Scroll Grid Layout & Page Elevate Adjustments ---------- */
#page-rangkuman .title-bar {
  margin-top: -80px;
  margin-bottom: 12px;
}

#page-tarik-jawaban .title-bar {
  margin-top: -80px;
}

#page-referensi .title-bar,
#page-pengembang .title-bar {
  margin-top: -50px;
}

#page-latihan .title-bar {
  margin-top: -70px;
}

#content-rangkuman {
  width: 96%;
  max-width: 1440px;
  padding: 22px 32px !important;
  max-height: calc(100vh - 120px);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.rangkuman-grid-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
  align-items: stretch;
  width: 100%;
}

.rg-left-col {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.rg-card-banner {
  display: flex;
  align-items: center;
  gap: 22px;
  background: linear-gradient(135deg, #ffffff 0%, #e0f7fa 100%);
  border: 2.5px solid var(--teal);
  border-radius: var(--radius-md);
  padding: 20px 28px;
  box-shadow: 0 4px 14px rgba(0, 172, 193, 0.15);
}

.rg-banner-icon {
  font-size: 46px;
  width: 68px;
  height: 68px;
  background: #ffffff;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 3px 10px rgba(0, 172, 193, 0.22);
}

.rg-banner-content strong {
  font-family: var(--font-heading);
  font-size: 26px;
  color: var(--teal-dark);
  display: block;
  margin-bottom: 4px;
}

.rg-banner-content span {
  font-size: 19px;
  line-height: 1.55;
  color: var(--text-dark);
}

.rg-fondasi-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  flex: 1;
}

.rgc-card-mini {
  background: #ffffff;
  border: 1.5px solid rgba(0, 172, 193, 0.25);
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.rgc-card-mini:hover {
  transform: translateY(-2px);
  border-color: var(--teal);
  box-shadow: 0 4px 12px rgba(0, 172, 193, 0.18);
}

.rgc-head {
  display: flex;
  align-items: center;
  gap: 10px;
}

.rgc-icon {
  font-size: 30px;
}

.rgc-head strong {
  font-family: var(--font-heading);
  font-size: 22px;
  color: var(--teal-dark);
}

.rgc-card-mini p {
  font-size: 17.5px;
  line-height: 1.5;
  color: #334155;
  margin: 0;
}

.rg-right-col {
  display: flex;
  flex-direction: column;
  gap: 16px;
  justify-content: space-between;
}

.rg-right-col .refleksi-box {
  background: #ffffff;
  border: 2px solid var(--cyan-med);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}

.rg-right-col .refleksi-q {
  font-size: 19px;
  font-weight: 700;
  color: var(--teal-dark);
  line-height: 1.45;
  margin: 0;
}

.rg-right-col textarea {
  width: 100%;
  flex: 1;
  min-height: 130px;
  border: 1.5px solid #cbd5e1;
  border-radius: 8px;
  padding: 14px 16px;
  font-family: var(--font-body);
  font-size: 17.5px;
  line-height: 1.45;
  resize: none;
  outline: none;
  transition: border-color 0.2s ease;
}

.rg-right-col textarea:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(0, 172, 193, 0.18);
}

.rg-right-col .badge-completion {
  background: linear-gradient(135deg, #fff8e1 0%, #ffecb3 100%);
  border: 2px solid #ffd54f;
  border-radius: var(--radius-md);
  padding: 18px 24px;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 16px;
}

.badge-icon {
  font-size: 44px;
}

.badge-text strong {
  font-size: 21px;
}

.badge-text span {
  font-size: 16.5px;
}

.rg-right-col .badge-icon {
  font-size: 32px;
}

.rg-right-col .badge-text strong {
  font-family: var(--font-heading);
  font-size: 15px;
  color: #bf360c;
  display: block;
}

.rg-right-col .badge-text span {
  font-size: 12.5px;
  color: #e65100;
  line-height: 1.25;
}

/* ---------- Page 15: Pengembang Page ---------- */
.dev-card {
  background: rgba(255, 255, 255, 0.75);
  border: 2px solid rgba(0, 172, 193, 0.35);
  border-radius: var(--radius-md);
  padding: 22px 28px;
  margin-bottom: 24px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.06);
  transition: transform var(--transition), box-shadow var(--transition);
}

.dev-card:last-child {
  margin-bottom: 0;
}

.dev-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(0, 172, 193, 0.22);
  border-color: var(--teal);
}

.dev-layout {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 32px;
  align-items: center;
}

.dev-photo {
  width: 175px;
  height: 175px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, #81d4fa, #4dd0e1, #a5d6a7);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 72px;
  box-shadow: 0 6px 20px var(--shadow);
  border: 3.5px solid var(--white);
  overflow: hidden;
  position: relative;
  flex-shrink: 0;
}

.dev-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.dev-fields {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.dev-field {
  display: flex;
  align-items: center;
  gap: 16px;
}

.dev-field .field-label {
  background: var(--teal);
  color: var(--white);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 18px;
  padding: 8px 24px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
  min-width: 130px;
  text-align: center;
  box-shadow: 0 3px 8px var(--shadow-light);
}

.dev-field .field-value {
  background: var(--white);
  padding: 10px 22px;
  border-radius: var(--radius-md);
  font-size: 18px;
  font-weight: 600;
  flex: 1;
  box-shadow: 0 2px 8px var(--shadow-light);
  border: 1.5px solid rgba(0, 172, 193, 0.2);
}

.dev-social {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 8px;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-dark);
}

.dev-social svg {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  flex-shrink: 0;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

/* ---------- Page 16: PJ & Penyunting Page ---------- */
.pj-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.pj-column {
  text-align: center;
}

.pj-column .title-bar {
  font-size: 22px;
  padding: 8px 36px;
  margin-bottom: 16px;
}

.pj-list {
  background: rgba(255, 255, 255, 0.75);
  border-radius: var(--radius-md);
  padding: 18px 22px;
  text-align: left;
  border: 2px solid rgba(0, 172, 193, 0.2);
  box-shadow: 0 4px 14px var(--shadow-light);
}

.pj-list .pj-item {
  padding: 10px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  font-size: 16px;
  line-height: 1.5;
}

.pj-list .pj-item:last-child {
  border-bottom: none;
}

.pj-list .pj-name {
  font-weight: 700;
  color: var(--text-dark);
}

.pj-list .pj-role {
  font-size: 15px;
  color: var(--text-muted);
  font-style: italic;
}

/* (Page 17 Kutipan styles unified in main section above) */

/* ---------- Page 18: Kredit / Penutup ---------- */
#page-kredit .content-box {
  width: 95%;
  max-width: 1400px;
  min-height: 640px;
  height: 640px;
  max-height: calc(100vh - 150px);
  padding: 36px 60px !important;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}

#page-kredit .logo-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 52px;
  flex-wrap: wrap;
  margin-bottom: 28px;
  width: 100%;
}

#page-kredit .logo-row img {
  max-height: 120px;
  max-width: 250px;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.08));
  transition: transform var(--transition);
}

#page-kredit .logo-row img:hover {
  transform: scale(1.06);
}

#page-kredit .kredit-divider {
  width: 75%;
  max-width: 900px;
  height: 3.5px;
  background: linear-gradient(90deg, transparent, var(--teal), transparent);
  margin: 0 auto 24px;
}

#page-kredit .kredit-text {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

#page-kredit .kredit-title {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 800;
  color: #004d40;
  letter-spacing: 1.5px;
  margin: 0;
  text-shadow: 0 1px 2px rgba(255, 255, 255, 0.8);
}

#page-kredit .kredit-ditjen {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: #006064;
  line-height: 1.5;
  max-width: 1150px;
  margin: 0;
}

#page-kredit .kredit-smp {
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: 800;
  color: var(--teal-dark);
  letter-spacing: 2px;
  margin: 6px 0 0;
}

/* ---------- Custom Scrollbars for High-Density Screens ---------- */
.scrollable,
.content-box,
.petunjuk-scroll,
.eval-box,
.eval-scroll {
  scrollbar-width: thin;
  scrollbar-color: var(--teal) rgba(0, 0, 0, 0.06);
}

::-webkit-scrollbar {
  width: 7px;
  height: 7px;
}

::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.04);
  border-radius: 999px;
}

::-webkit-scrollbar-thumb {
  background: var(--teal);
  border-radius: 999px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--teal-dark);
}

/* ============================================================
   RESPONSIVE DESIGN SYSTEM (ALL DEVICES & RESOLUTIONS)
   ============================================================ */

/* ---------- Standard Laptops (Width < 1400px OR Height < 850px) ---------- */
@media (max-width: 1400px), (max-height: 850px) {
  /* Navigation Bar Top & Controls */
  .nav-top,
  .top-controls-right {
    top: 16px;
  }
  .top-controls-right.on-cover {
    top: auto;
    bottom: 16px;
  }
  .nav-top { left: 20px; gap: 10px; }
  .top-controls-right { right: 20px; gap: 10px; }

  .nav-top .nav-circle,
  .nav-btn-materi .nav-circle {
    width: 60px;
    height: 60px;
    font-size: 28px;
    border-width: 3px;
  }

  .nav-top .nav-label,
  .nav-btn-materi .nav-label {
    font-size: 18px;
    padding: 8px 20px;
  }

  .zoom-widget {
    padding: 4px 6px;
    gap: 4px;
  }

  .zoom-btn {
    width: 36px;
    height: 36px;
    font-size: 18px;
  }

  .zoom-level-text {
    font-size: 13px;
    min-width: 48px;
    padding: 2px 4px;
  }

  /* Navigation Bar Bottom */
  .nav-bottom {
    bottom: 14px;
  }
  .nav-bottom.left { left: 20px; }
  .nav-bottom.right { right: 20px; }

  .nav-arrow {
    width: 68px;
    height: 68px;
    font-size: 32px;
    border-width: 3.5px;
  }

  .nav-materi-label {
    padding: 6px 16px;
    max-width: 260px;
  }

  .nav-materi-label .nml-main {
    font-size: 13px;
  }

  .nav-materi-label .nml-sub {
    font-size: 9.5px;
  }

  /* Title Bar */
  .title-bar {
    font-size: 26px;
    padding: 8px 36px;
    margin-bottom: 12px;
  }

  /* Cover Page */
  .logo-top img {
    height: 72px;
  }
  #page-cover .cover-center {
    margin-top: 0;
  }
  #page-cover .cover-title {
    margin-bottom: 6px;
  }
  #page-cover .cover-title-main {
    font-size: 60px;
    letter-spacing: 1px;
    text-shadow:
      -2px -2px 0 var(--white),
      2px -2px 0 var(--white),
      -2px 2px 0 var(--white),
      2px 2px 0 var(--white),
      0 6px 16px rgba(0, 0, 0, 0.22);
  }
  #page-cover .cover-title-sub {
    font-size: 46px;
    margin-top: 2px;
    letter-spacing: 0.8px;
    text-shadow:
      -2px -2px 0 var(--white),
      2px -2px 0 var(--white),
      -2px 2px 0 var(--white),
      2px 2px 0 var(--white),
      0 5px 14px rgba(0, 0, 0, 0.2);
  }
  #page-cover .cover-subtitle {
    font-size: 18px;
    padding: 6px 30px;
    margin-top: 6px;
    margin-bottom: 8px;
    border-width: 2.5px;
  }
  #page-cover .btn-mulai {
    margin-top: 18px;
    padding: 10px 38px 10px 14px;
    border-width: 3.5px;
  }
  #page-cover .btn-mulai .play-icon {
    width: 48px;
    height: 48px;
    font-size: 22px;
  }
  #page-cover .btn-mulai .mulai-text {
    font-size: 26px;
    letter-spacing: 1.5px;
  }

  /* Menu Page */
  #page-menu .title-bar {
    margin-bottom: 12px;
  }
  .menu-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    max-width: 880px;
    width: 90%;
  }
  .menu-card {
    padding: 14px 10px;
    min-height: 120px;
    border-radius: 16px;
  }
  .menu-card .card-icon {
    font-size: 48px;
  }
  .menu-card .card-label {
    font-size: 16px;
  }

  /* Page 5 (Materi List) — Berpikir Komputasional 3 Cards in Row */
  #page-materi-list .title-bar {
    margin-top: 0;
    margin-bottom: 14px;
    font-size: 28px;
    padding: 8px 42px;
  }
  #page-materi-list .materi-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    max-width: 1080px;
    width: 95%;
    margin: 0 auto;
  }
  #page-materi-list .materi-card {
    flex-direction: column;
    border-radius: 18px;
    border-width: 2.5px;
    height: auto;
    overflow: hidden;
  }
  #page-materi-list .materi-card .card-thumb {
    width: 100%;
    height: 130px;
    border-radius: 14px 14px 0 0;
  }
  #page-materi-list .materi-card .card-badge {
    top: 6px;
    left: 6px;
    font-size: 11px;
    padding: 3px 8px;
  }
  #page-materi-list .materi-card .card-body {
    padding: 10px 12px 12px;
    text-align: center;
    align-items: center;
  }
  #page-materi-list .materi-card .card-title {
    font-size: 15.5px;
    margin-bottom: 3px;
    line-height: 1.25;
  }
  #page-materi-list .materi-card .card-desc {
    font-size: 12px;
    line-height: 1.35;
  }

  /* Standard Content Boxes */
  .content-box {
    padding: 18px 28px 14px;
    min-height: 280px;
    max-height: calc(100vh - 160px);
    border-radius: 20px;
  }
}

/* ---------- Ultra-Compact Screen Heights (Height <= 700px) ---------- */
@media (max-height: 700px) {
  .nav-top,
  .top-controls-right {
    top: 10px;
  }
  .top-controls-right.on-cover {
    top: auto;
    bottom: 10px;
  }
  .nav-top { left: 14px; }
  .top-controls-right { right: 14px; }

  .nav-top .nav-circle,
  .nav-btn-materi .nav-circle {
    width: 50px;
    height: 50px;
    font-size: 22px;
  }

  .nav-top .nav-label,
  .nav-btn-materi .nav-label {
    font-size: 14px;
    padding: 5px 14px;
  }

  .zoom-btn {
    width: 32px;
    height: 32px;
    font-size: 16px;
  }

  .zoom-level-text {
    font-size: 12px;
    min-width: 42px;
  }

  .nav-bottom {
    bottom: 10px;
  }
  .nav-bottom.left { left: 14px; }
  .nav-bottom.right { right: 14px; }

  .nav-arrow {
    width: 54px;
    height: 54px;
    font-size: 24px;
  }

  .title-bar {
    font-size: 22px;
    padding: 5px 28px;
    margin-bottom: 8px;
  }

  .logo-top img {
    height: 56px;
  }
  #page-cover .cover-title-main {
    font-size: 48px;
  }
  #page-cover .cover-title-sub {
    font-size: 36px;
  }
  #page-cover .cover-subtitle {
    font-size: 15px;
    padding: 4px 22px;
  }
  #page-cover .btn-mulai {
    margin-top: 12px;
    padding: 8px 30px 8px 10px;
  }
  #page-cover .btn-mulai .play-icon {
    width: 40px;
    height: 40px;
    font-size: 18px;
  }
  #page-cover .btn-mulai .mulai-text {
    font-size: 22px;
  }

  #page-materi-list .materi-card .card-thumb {
    height: 100px;
  }
  #page-materi-list .materi-card .card-title {
    font-size: 13.5px;
  }
  #page-materi-list .materi-card .card-desc {
    font-size: 10.5px;
  }

  .content-box {
    padding: 12px 20px 10px;
    min-height: 240px;
    max-height: calc(100vh - 130px);
  }

  .testing-page-indicator {
    bottom: 6px;
    font-size: 11.5px;
    padding: 3px 12px;
  }
}

/* ---------- Mobile / Tablet Scrolling Support (< 800px Width) ---------- */
@media (max-width: 800px) {
  .page {
    overflow-y: auto !important;
    justify-content: flex-start !important;
    padding: 65px 14px 85px !important;
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .testing-page-indicator {
    bottom: 6px;
    font-size: 11px;
    padding: 2px 10px;
  }

  .nav-top .nav-label,
  .nav-btn-materi .nav-label,
  .nav-materi-label {
    display: none !important;
  }

  .logo-top img {
    height: 45px;
  }

  #page-cover .cover-title-main {
    font-size: 36px;
  }
  #page-cover .cover-title-sub {
    font-size: 28px;
  }
  #page-cover .cover-subtitle {
    font-size: 14px;
    padding: 4px 18px;
  }

  .menu-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    width: 100% !important;
  }

  #page-materi-list .materi-cards {
    grid-template-columns: 1fr !important;
    gap: 10px !important;
    width: 100% !important;
    max-width: 480px !important;
  }

  #page-materi-list .materi-card {
    flex-direction: row !important;
    height: auto !important;
    min-height: 90px !important;
  }

  #page-materi-list .materi-card .card-thumb {
    width: 100px !important;
    min-width: 100px !important;
    height: 90px !important;
    border-radius: 12px 0 0 12px !important;
  }

  #page-materi-list .materi-card .card-body {
    padding: 6px 10px !important;
    text-align: left !important;
    align-items: flex-start !important;
  }

  #page-materi-list .materi-card .card-title {
    font-size: 14px !important;
    text-align: left !important;
  }

  #page-materi-list .materi-card .card-desc {
    font-size: 11px !important;
    text-align: left !important;
  }

  .content-columns,
  .content-img-text,
  .video-layout,
  .dev-layout,
  .pj-layout,
  .match-container,
  .dd-container {
    grid-template-columns: 1fr !important;
  }

  .content-box {
    max-height: none !important;
    width: 100% !important;
  }
}