/* ==========================================================================
   MOTION GRAPHICS PRESENTATION STYLESHEET
   Module 2: Del diseño a la planificación en la enseñanza virtual
   ========================================================================== */

:root {
  --bg-dark: #0b0f19;
  --bg-surface: #111827;
  --bg-card: rgba(30, 41, 59, 0.6);
  --bg-card-hover: rgba(30, 41, 59, 0.85);
  
  --primary-mint: #2dd4bf;
  --primary-mint-glow: rgba(45, 212, 191, 0.35);
  --primary-cyan: #38bdf8;
  --primary-cyan-glow: rgba(56, 189, 248, 0.35);
  --accent-purple: #818cf8;
  --accent-amber: #fbbf24;
  
  --text-main: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  
  --border-light: rgba(255, 255, 255, 0.12);
  --border-mint: rgba(45, 212, 191, 0.4);
  
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
  
  --transition-fast: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-bounce: 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-dark);
  color: var(--text-main);
  overflow-x: hidden;
  height: 100vh;
  width: 100vw;
  display: flex;
  justify-content: center;
  align-items: center;
  user-select: none;
}

/* Background Canvas & Ambient Light Glows */
#bgCanvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

.ambient-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 1;
  opacity: 0.4;
  animation: floatAmbient 18s ease-in-out infinite alternate;
}

.glow-1 {
  width: 500px;
  height: 500px;
  background: var(--primary-mint-glow);
  top: -100px;
  left: -100px;
}

.glow-2 {
  width: 600px;
  height: 600px;
  background: var(--primary-cyan-glow);
  bottom: -150px;
  right: -100px;
  animation-delay: -6s;
}

.glow-3 {
  width: 450px;
  height: 450px;
  background: rgba(129, 140, 248, 0.25);
  top: 40%;
  left: 30%;
  animation-delay: -12s;
}

@keyframes floatAmbient {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(40px, 30px) scale(1.15); }
  100% { transform: translate(-30px, 50px) scale(0.95); }
}

/* Main Container Frame */
.motion-container {
  position: relative;
  width: 94vw;
  height: 94vh;
  max-width: 1550px;
  max-height: 920px;
  background: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6), 0 0 40px rgba(45, 212, 191, 0.08);
  display: flex;
  flex-direction: column;
  z-index: 10;
  overflow: hidden;
}

/* Header Navbar */
.motion-header {
  height: 65px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-light);
  background: rgba(15, 23, 42, 0.4);
  z-index: 20;
}

.brand-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
}

.badge-icon {
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, var(--primary-mint), var(--primary-cyan));
  color: var(--bg-dark);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  box-shadow: 0 0 12px var(--primary-mint-glow);
}

.mode-switcher {
  display: flex;
  background: rgba(0, 0, 0, 0.3);
  padding: 4px;
  border-radius: 30px;
  border: 1px solid var(--border-light);
}

.mode-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition-fast);
}

.mode-btn:hover {
  color: var(--text-main);
}

.mode-btn.active {
  background: linear-gradient(135deg, var(--primary-mint), var(--primary-cyan));
  color: var(--bg-dark);
  box-shadow: 0 0 15px var(--primary-mint-glow);
}

.scene-jumper {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(0, 0, 0, 0.3);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-light);
  color: var(--primary-mint);
}

.scene-jumper select {
  background: transparent;
  border: none;
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  outline: none;
  cursor: pointer;
}

.scene-jumper select option {
  background: var(--bg-surface);
  color: var(--text-main);
}

/* SCENE STAGE */
.stage {
  position: relative;
  flex: 1;
  width: 100%;
  overflow: hidden;
}

.scene {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  padding: 30px 48px;
  opacity: 0;
  visibility: hidden;
  transform: scale(0.96) translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.6s;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.scene.active {
  opacity: 1;
  visibility: visible;
  transform: scale(1) translateY(0);
  z-index: 5;
}

/* Scene Headers & Titles */
.tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(45, 212, 191, 0.12);
  border: 1px solid var(--border-mint);
  border-radius: 20px;
  color: var(--primary-mint);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
}

.kinetic-title {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 14px;
  color: var(--text-main);
}

.kinetic-title .highlight {
  background: linear-gradient(135deg, var(--primary-mint), var(--primary-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.kinetic-title .highlight-accent {
  background: linear-gradient(135deg, var(--primary-cyan), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.scene-sub {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 750px;
  margin: 0 auto 20px auto;
  line-height: 1.5;
}

/* Split Layout for Scene 1 */
.split-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}

.kinetic-text {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.scene-actions {
  display: flex;
  align-items: center;
  gap: 24px;
}

.btn {
  padding: 14px 28px;
  border-radius: 30px;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: var(--transition-bounce);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-mint), var(--primary-cyan));
  color: var(--bg-dark);
  box-shadow: 0 10px 25px var(--primary-mint-glow);
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 15px 35px var(--primary-mint-glow);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-light);
  color: var(--text-main);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
}

.hero-stats {
  display: flex;
  gap: 20px;
}

.stat-item {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.stat-num {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary-mint);
}

/* Motion Cards General */
.motion-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 24px;
  backdrop-filter: blur(12px);
  transition: var(--transition-smooth);
}

.motion-card:hover {
  border-color: var(--border-mint);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4), 0 0 20px var(--primary-mint-glow);
  transform: translateY(-4px);
}

/* SCENE 1 SVG ILLUSTRATION */
.hero-illustration-card {
  padding: 16px;
  display: flex;
  justify-content: center;
  align-items: center;
  background: radial-gradient(circle at center, rgba(30, 41, 59, 0.8), rgba(15, 23, 42, 0.9));
}

.scene1-svg {
  width: 100%;
  max-height: 340px;
}

.svg-frame {
  stroke: var(--primary-cyan);
  stroke-width: 3;
  fill: rgba(15, 23, 42, 0.6);
  filter: drop-shadow(0 0 10px var(--primary-cyan-glow));
}

.svg-screen {
  fill: #0f172a;
  stroke: var(--border-light);
}

.svg-play-circle {
  fill: var(--primary-mint);
  cursor: pointer;
  transition: var(--transition-bounce);
}

.svg-play-circle:hover {
  transform: scale(1.1);
  fill: var(--primary-cyan);
}

.pulse-glow {
  animation: pulseGlowCircle 2s infinite alternate;
}

@keyframes pulseGlowCircle {
  0% { filter: drop-shadow(0 0 5px var(--primary-mint-glow)); }
  100% { filter: drop-shadow(0 0 20px var(--primary-mint)); }
}

.svg-play-triangle {
  fill: var(--bg-dark);
}

.bulb-bg {
  fill: rgba(251, 191, 36, 0.2);
}

.bulb-shape {
  fill: var(--accent-amber);
  filter: drop-shadow(0 0 8px rgba(251, 191, 36, 0.6));
}

.ray {
  stroke: var(--accent-amber);
  stroke-width: 3;
  stroke-linecap: round;
  animation: rayBlink 1.5s infinite alternate;
}

@keyframes rayBlink {
  0% { opacity: 0.3; }
  100% { opacity: 1; }
}

.gear-bg {
  fill: rgba(129, 140, 248, 0.2);
}

.gear-path {
  fill: var(--accent-purple);
}

.gear-rotate {
  transform-origin: 90px 70px;
  animation: rotateGear 10s linear infinite;
}

@keyframes rotateGear {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.sparkle {
  fill: var(--primary-cyan);
  animation: sparkPulse 1.8s infinite alternate;
}

@keyframes sparkPulse {
  0% { transform: scale(0.8); opacity: 0.4; }
  100% { transform: scale(1.4); opacity: 1; }
}

.svg-wave {
  stroke: var(--primary-mint);
  stroke-width: 3;
  stroke-dasharray: 4;
  fill: none;
}

.svg-base {
  fill: #334155;
}

/* SCENE 2 - CARDS GRID */
.cards-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 20px;
}

.feature-card {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 32px 24px;
  border-radius: var(--radius-md);
  cursor: pointer;
}

.feature-card.highlight-card {
  border-color: var(--primary-mint);
  background: linear-gradient(145deg, rgba(30, 41, 59, 0.8), rgba(45, 212, 191, 0.12));
}

.card-icon-wrapper {
  position: relative;
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: rgba(45, 212, 191, 0.15);
  color: var(--primary-mint);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
  transition: var(--transition-fast);
}

.feature-card:hover .card-icon-wrapper {
  background: var(--primary-mint);
  color: var(--bg-dark);
  transform: scale(1.1) rotate(5deg);
}

.feature-card h3 {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-secondary);
  flex: 1;
}

.card-footer-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary-cyan);
  margin-top: 18px;
  padding-top: 12px;
  border-top: 1px solid var(--border-light);
}

/* SCENE 3 - RADIAL ARC ROUTE */
.location-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(45, 212, 191, 0.2);
  border-radius: 20px;
  color: var(--primary-mint);
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.location-ping {
  animation: ping 1.5s cubic-bezier(0, 0, 0.2, 1) infinite;
}

@keyframes ping {
  75%, 100% { transform: scale(1.4); opacity: 0; }
}

.arc-container-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 30px;
  align-items: center;
  margin-top: 10px;
}

.arc-graphic-widget {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.arc-svg {
  width: 100%;
  max-width: 480px;
}

.arc-track {
  fill: none;
  stroke: rgba(255, 255, 255, 0.08);
  stroke-width: 32;
  stroke-linecap: round;
}

.arc-segment {
  fill: none;
  stroke: rgba(255, 255, 255, 0.18);
  stroke-width: 32;
  stroke-linecap: round;
  cursor: pointer;
  transition: var(--transition-fast);
}

.arc-segment:hover {
  stroke: var(--primary-cyan);
  filter: drop-shadow(0 0 10px var(--primary-cyan-glow));
}

.arc-segment.active-segment {
  stroke: var(--primary-mint);
  stroke-width: 38;
  filter: drop-shadow(0 0 15px var(--primary-mint));
}

.arc-num {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 800;
  fill: var(--text-muted);
  pointer-events: none;
}

.arc-num.active-num {
  fill: var(--bg-dark);
}

.arc-center-marker {
  position: absolute;
  bottom: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--primary-mint);
  font-size: 1.2rem;
}

.marker-label {
  font-size: 0.85rem;
  font-weight: 700;
  margin-top: 4px;
  background: var(--bg-card);
  padding: 4px 12px;
  border-radius: 12px;
  border: 1px solid var(--border-mint);
}

.submodules-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.submodule-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 20px;
  background: rgba(30, 41, 59, 0.4);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
}

.submodule-card:hover {
  background: rgba(30, 41, 59, 0.7);
  transform: translateX(6px);
}

.submodule-card.active-card {
  background: linear-gradient(135deg, rgba(45, 212, 191, 0.15), rgba(30, 41, 59, 0.8));
  border-color: var(--primary-mint);
  box-shadow: 0 4px 20px var(--primary-mint-glow);
}

.submodule-number {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-muted);
}

.submodule-card.active-card .submodule-number {
  background: var(--primary-mint);
  color: var(--bg-dark);
}

.submodule-info h3 {
  font-size: 1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.badge-current {
  font-size: 0.65rem;
  padding: 2px 8px;
  background: var(--primary-mint);
  color: var(--bg-dark);
  border-radius: 10px;
  font-weight: 800;
}

.submodule-info p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 2px;
}

/* SCENE 4 - PUZZLE & BENEFITS */
.modular-split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 32px;
  align-items: center;
  margin-top: 15px;
}

.puzzle-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 24px;
}

.puzzle-svg {
  width: 240px;
  height: 240px;
}

.puzzle-piece {
  fill: rgba(30, 41, 59, 0.8);
  stroke: var(--border-light);
  stroke-width: 3;
  cursor: pointer;
  transition: var(--transition-bounce);
}

.puzzle-piece:hover {
  fill: var(--primary-cyan);
  stroke: var(--text-main);
}

.puzzle-piece.active-piece {
  fill: var(--primary-mint);
  stroke: var(--text-main);
  filter: drop-shadow(0 0 12px var(--primary-mint));
}

.puzzle-circle-bg {
  fill: var(--bg-surface);
  stroke: var(--border-mint);
  stroke-width: 2;
}

.cycle-arrow-path {
  fill: none;
  stroke: var(--primary-mint);
  stroke-width: 4;
  stroke-linecap: round;
}

.cycle-arrow-head {
  fill: var(--primary-mint);
}

.puzzle-cycle-group {
  transform-origin: 210px 210px;
  animation: cycleSpin 8s linear infinite;
}

@keyframes cycleSpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.puzzle-caption {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 16px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  line-height: 1.5;
  background: rgba(0, 0, 0, 0.2);
  padding: 12px;
  border-radius: var(--radius-sm);
}

.benefits-title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  margin-bottom: 16px;
  color: var(--primary-mint);
  display: flex;
  align-items: center;
  gap: 10px;
}

.benefits-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
}

.benefit-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(30, 41, 59, 0.4);
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-light);
  font-size: 0.95rem;
  transition: var(--transition-fast);
}

.benefit-item:hover {
  border-color: var(--primary-cyan);
  transform: translateX(5px);
}

.item-check {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(45, 212, 191, 0.2);
  color: var(--primary-mint);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
}

.callout-box {
  border-left: 4px solid var(--primary-mint);
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* SCENE 5 - FINALE */
.scene-5-wrapper {
  max-width: 800px;
  margin: 0 auto;
}

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

.mega-title {
  font-size: 2.6rem;
  background: linear-gradient(135deg, #fff, var(--primary-mint), var(--primary-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 20px;
}

.quote-card {
  position: relative;
  margin: 20px 0 24px 0;
  padding: 24px 36px;
  border-color: var(--primary-mint);
  background: linear-gradient(135deg, rgba(45, 212, 191, 0.08), rgba(30, 41, 59, 0.7));
}

.quote-icon {
  position: absolute;
  top: 15px;
  left: 20px;
  font-size: 2rem;
  color: rgba(45, 212, 191, 0.2);
}

.quote-text {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 600;
  font-style: italic;
  color: var(--text-main);
}

.finale-paragraphs {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 28px;
}

.finale-paragraphs p {
  margin-bottom: 12px;
}

.highlight-p {
  color: var(--text-main);
  font-weight: 500;
}

.final-cta {
  display: flex;
  justify-content: center;
  gap: 20px;
}

.pulse-cta {
  animation: ctaPulse 2s infinite;
}

@keyframes ctaPulse {
  0% { box-shadow: 0 0 0 0 rgba(45, 212, 191, 0.7); }
  70% { box-shadow: 0 0 0 20px rgba(45, 212, 191, 0); }
  100% { box-shadow: 0 0 0 0 rgba(45, 212, 191, 0); }
}

.spark-icon {
  color: var(--accent-amber);
  font-size: 1.4rem;
  margin: 0 6px;
  animation: sparkRotate 3s ease-in-out infinite alternate;
}

@keyframes sparkRotate {
  0% { transform: scale(0.9) rotate(0deg); opacity: 0.6; }
  100% { transform: scale(1.3) rotate(20deg); opacity: 1; }
}

/* SUBTITLE NARRATION BAR */
.subtitle-bar {
  height: 48px;
  padding: 0 24px;
  background: rgba(11, 15, 25, 0.85);
  border-top: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.9rem;
  z-index: 20;
}

.sub-icon {
  color: var(--primary-mint);
  font-size: 1.1rem;
}

.sub-text {
  flex: 1;
  color: var(--text-main);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.voice-toggle-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.voice-toggle-btn:hover {
  color: var(--primary-mint);
}

.voice-toggle-btn.muted {
  color: #ef4444;
}

/* FOOTER MOTION CONTROLS */
.motion-controls {
  height: 70px;
  padding: 0 24px;
  background: rgba(15, 23, 42, 0.9);
  border-top: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  gap: 16px;
  z-index: 30;
}

.ctrl-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-light);
  color: var(--text-main);
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

.ctrl-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: scale(1.08);
}

.play-btn {
  background: linear-gradient(135deg, var(--primary-mint), var(--primary-cyan));
  color: var(--bg-dark);
  border: none;
  font-size: 1.1rem;
  box-shadow: 0 0 15px var(--primary-mint-glow);
}

.play-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 0 22px var(--primary-mint);
}

.ctrl-btn.text-btn {
  width: auto;
  border-radius: 20px;
  padding: 0 14px;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
}

.speed-selector {
  position: relative;
}

.speed-menu {
  position: absolute;
  bottom: 50px;
  left: 0;
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 6px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-fast);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

.speed-selector:hover .speed-menu {
  opacity: 1;
  pointer-events: auto;
}

.speed-menu span {
  padding: 6px 16px;
  font-size: 0.8rem;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: 6px;
  transition: var(--transition-fast);
}

.speed-menu span:hover,
.speed-menu span.active {
  background: var(--primary-mint);
  color: var(--bg-dark);
  font-weight: 700;
}

/* TIMELINE & SCRUBBER */
.timeline-container {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 16px;
}

.timeline-track {
  position: relative;
  flex: 1;
  height: 8px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  cursor: pointer;
  overflow: visible;
}

.timeline-progress {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary-mint), var(--primary-cyan));
  border-radius: 4px;
  box-shadow: 0 0 10px var(--primary-mint-glow);
}

.timeline-scrubber {
  position: absolute;
  top: 50%;
  left: 0%;
  width: 16px;
  height: 16px;
  background: #fff;
  border: 2px solid var(--primary-mint);
  border-radius: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  box-shadow: 0 0 10px var(--primary-mint);
  transition: transform 0.1s ease;
  pointer-events: none;
}

.timeline-track:hover .timeline-scrubber {
  transform: translate(-50%, -50%) scale(1.2);
}

.keyframe-marker {
  position: absolute;
  top: -4px;
  width: 4px;
  height: 16px;
  background: rgba(255, 255, 255, 0.4);
  border-radius: 2px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.keyframe-marker:hover {
  background: var(--primary-mint);
  transform: scaleY(1.3);
}

.time-display {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  color: var(--text-muted);
  min-width: 90px;
}

/* RESPONSIVE DESIGN */
@media (max-width: 1024px) {
  .split-layout, .cards-grid-3, .arc-container-wrapper, .modular-split {
    grid-template-columns: 1fr;
  }

  .scene {
    padding: 20px;
    overflow-y: auto;
  }

  .kinetic-title {
    font-size: 1.8rem;
  }

  .mega-title {
    font-size: 2rem;
  }
}