/* ==========================================================================
   Thinking Birds - Ultra Responsive Cinematic Video Website
   Design System & Modern Glassmorphic Stylesheet
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=Plus+Jakarta+Sans:wght@400;500;600;700&display=swap');

:root {
  --bg-primary: #06080d;
  --bg-secondary: #0d1117;
  --bg-glass: rgba(18, 24, 38, 0.65);
  --bg-glass-hover: rgba(28, 36, 56, 0.85);
  --bg-glass-active: rgba(40, 52, 80, 0.95);
  --border-glass: rgba(255, 255, 255, 0.12);
  --border-glass-highlight: rgba(255, 255, 255, 0.25);
  
  --accent-primary: #6366f1;
  --accent-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #ec4899 100%);
  --accent-glow: rgba(99, 102, 241, 0.4);
  --accent-cyan: #06b6d4;
  --accent-emerald: #10b981;
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --shadow-subtle: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-elevated: 0 12px 40px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.35);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 9999px;
  
  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Outfit', var(--font-main);
  
  --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.45s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Base Reset & Layout */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  width: 100%;
  height: 100%;
  min-height: 100vh;
  min-height: 100dvh;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-main);
  overflow: hidden;
  position: relative;
  user-select: none;
  -webkit-user-select: none;
}

/* Ambient Background Light & Grid */
.ambient-container {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.ambient-canvas {
  position: absolute;
  inset: -20%;
  width: 140%;
  height: 140%;
  filter: blur(80px);
  opacity: 0.65;
  transform: translateZ(0);
  transition: opacity var(--transition-slow);
}

.ambient-grid {
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(circle at 50% 50%, rgba(99, 102, 241, 0.08) 0%, transparent 70%),
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 100% 100%, 48px 48px, 48px 48px;
  opacity: 0.7;
}

/* App Main Wrapper */
.app-wrapper {
  position: relative;
  z-index: 10;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: env(safe-area-inset-top, 16px) env(safe-area-inset-right, 16px) env(safe-area-inset-bottom, 16px) env(safe-area-inset-left, 16px);
}

/* ==========================================================================
   Top Floating Header & Modern Navbar
   ========================================================================== */
.site-header {
  position: absolute;
  top: max(16px, env(safe-area-inset-top));
  left: max(16px, env(safe-area-inset-left));
  right: max(16px, env(safe-area-inset-right));
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  pointer-events: none;
  transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.site-header.hidden-header {
  opacity: 0;
  transform: translateY(-14px);
}

.header-left,
.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
  pointer-events: auto;
}

/* Brand Logo Badge */
.brand-badge {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 8px 18px 8px 12px;
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-subtle);
  text-decoration: none;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.brand-badge:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-glass-highlight);
  transform: translateY(-1px);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.4), 0 0 16px rgba(99, 102, 241, 0.2);
}

.brand-logo-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border-radius: 8px;
  overflow: hidden;
  background: #ffffff;
  padding: 1px;
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.4), 0 2px 8px rgba(0, 0, 0, 0.3);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.brand-badge:hover .brand-logo-icon {
  transform: scale(1.06);
  box-shadow: 0 0 16px rgba(56, 189, 248, 0.7), 0 4px 12px rgba(0, 0, 0, 0.4);
}

.brand-logo-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 6px;
  display: block;
}

.brand-text-group {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-title-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
}

.brand-title {
  font-family: var(--font-display);
  font-size: 0.94rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(180deg, #ffffff 0%, #cbd5e1 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-subtitle {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.brand-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 8px #10b981;
  animation: pulse-dot 2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.3); opacity: 0.7; }
}

.brand-tag {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  background: rgba(99, 102, 241, 0.2);
  color: #a5b4fc;
  border: 1px solid rgba(99, 102, 241, 0.3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Center Desktop Navigation */
.main-nav {
  pointer-events: auto;
  display: flex;
  align-items: center;
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-pill);
  padding: 4px 6px;
  box-shadow: var(--shadow-subtle);
  transition: all var(--transition-fast);
}

.main-nav:hover {
  border-color: var(--border-glass-highlight);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 3px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  display: inline-flex;
}

.nav-link {
  background: transparent;
  border: 1px solid transparent;
  outline: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 15px;
  font-family: var(--font-display);
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-pill);
  transition: all var(--transition-fast);
}

.nav-icon {
  width: 15px;
  height: 15px;
  opacity: 0.8;
  transition: transform var(--transition-fast), color var(--transition-fast);
}

.nav-link:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
}

.nav-link:hover .nav-icon {
  transform: scale(1.1);
  color: var(--color-primary-light);
}

.nav-link.active {
  color: #ffffff;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.3), rgba(56, 189, 248, 0.15));
  border-color: rgba(99, 102, 241, 0.4);
  box-shadow: 0 0 14px rgba(99, 102, 241, 0.25);
  font-weight: 600;
}

.nav-link.active .nav-icon {
  color: #38bdf8;
  opacity: 1;
}

/* Header CTA Button */
.nav-cta-btn {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 600;
  color: #ffffff;
  background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 18px rgba(99, 102, 241, 0.4);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.cta-arrow {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-fast);
}

.nav-cta-btn:hover {
  background: linear-gradient(135deg, #818cf8 0%, #6366f1 100%);
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(99, 102, 241, 0.55);
}

.nav-cta-btn:hover .cta-arrow {
  transform: translateX(3px);
}

/* Mobile Menu Hamburger Button */
.mobile-menu-btn {
  display: none;
  pointer-events: auto;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
  padding: 0;
  transition: all var(--transition-fast);
}

.mobile-menu-btn:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-glass-highlight);
}

.hamburger-line {
  display: block;
  width: 18px;
  height: 2px;
  background: #ffffff;
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.mobile-menu-btn.active .line-top {
  transform: translateY(6px) rotate(45deg);
}

.mobile-menu-btn.active .line-mid {
  opacity: 0;
  transform: scale(0);
}

.mobile-menu-btn.active .line-bot {
  transform: translateY(-6px) rotate(-45deg);
}

/* Sound Autoplay Floating Prompt */
.sound-prompt-bar {
  position: absolute;
  top: max(72px, calc(env(safe-area-inset-top) + 60px));
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
}

.sound-prompt-btn {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 24px;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid rgba(99, 102, 241, 0.5);
  border-radius: var(--radius-pill);
  box-shadow: 0 8px 32px rgba(99, 102, 241, 0.3), 0 0 0 1px rgba(255, 255, 255, 0.1);
  color: #ffffff;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  animation: prompt-pulse 2.2s infinite ease-in-out;
  transition: all var(--transition-fast);
}

.sound-prompt-btn:hover {
  background: rgba(30, 41, 59, 0.95);
  border-color: #818cf8;
  box-shadow: 0 10px 40px rgba(99, 102, 241, 0.5);
  transform: translateY(-2px) scale(1.03);
}

.sound-prompt-btn:active {
  transform: scale(0.98);
}

.sound-prompt-icon {
  width: 22px;
  height: 22px;
  color: #818cf8;
  animation: icon-bounce 1.5s infinite ease-in-out;
}

@keyframes prompt-pulse {
  0%, 100% {
    box-shadow: 0 8px 32px rgba(99, 102, 241, 0.3), 0 0 0 0 rgba(99, 102, 241, 0.6);
  }
  50% {
    box-shadow: 0 10px 40px rgba(99, 102, 241, 0.6), 0 0 0 8px rgba(99, 102, 241, 0);
  }
}

@keyframes icon-bounce {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.15) rotate(-5deg); }
}

.sound-prompt-bar.dismissed {
  opacity: 0;
  transform: translateY(-20px) scale(0.95);
  pointer-events: none;
}

/* Sound Waveform Equalizer (Top Right) */
.sound-indicator {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.sound-indicator:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-glass-highlight);
}

.sound-wave {
  display: flex;
  align-items: center;
  gap: 3px;
  height: 16px;
}

.sound-bar {
  width: 3px;
  height: 100%;
  background: #a5b4fc;
  border-radius: 2px;
  transform-origin: bottom;
  animation: wave-anim 1.2s infinite ease-in-out;
}

.sound-bar:nth-child(1) { height: 40%; animation-delay: 0.1s; }
.sound-bar:nth-child(2) { height: 85%; animation-delay: 0.3s; }
.sound-bar:nth-child(3) { height: 60%; animation-delay: 0.15s; }
.sound-bar:nth-child(4) { height: 100%; animation-delay: 0.4s; }
.sound-bar:nth-child(5) { height: 50%; animation-delay: 0.25s; }

.sound-indicator.muted .sound-bar {
  animation: none;
  height: 3px !important;
  background: var(--text-muted);
}

.sound-indicator.muted .sound-status-text {
  color: var(--text-muted);
}

@keyframes wave-anim {
  0%, 100% { transform: scaleY(0.3); }
  50% { transform: scaleY(1); }
}

.sound-status-text {
  font-size: 0.8rem;
  font-weight: 600;
  color: #c7d2fe;
}

/* ==========================================================================
   Main Video Stage Container
   ========================================================================== */
.video-stage {
  position: relative;
  width: 100%;
  max-width: min(1360px, 96vw);
  height: min(84vh, 880px);
  max-height: calc(100dvh - 32px);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #000000;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8), 0 0 0 1px var(--border-glass);
  transition: all var(--transition-slow);
}

/* Stage Fullscreen Mode */
.video-stage.is-fullscreen {
  max-width: 100vw;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  max-height: 100dvh;
  border-radius: 0;
  border: none;
  box-shadow: none;
}

/* Video Player Element */
.video-player {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background-color: #000;
  outline: none;
  cursor: pointer;
  transition: transform var(--transition-normal);
}

.video-stage.fit-cover .video-player {
  object-fit: cover;
}

/* Loading & Buffering Spinner */
.video-loader {
  position: absolute;
  inset: 0;
  z-index: 25;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  background: rgba(6, 8, 13, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

.video-loader.active {
  opacity: 1;
  pointer-events: auto;
}

.loader-spinner {
  width: 52px;
  height: 52px;
  border: 3px solid rgba(99, 102, 241, 0.2);
  border-top-color: #6366f1;
  border-right-color: #ec4899;
  border-radius: 50%;
  animation: spin 0.85s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loader-text {
  font-size: 0.88rem;
  font-weight: 500;
  color: #cbd5e1;
  letter-spacing: 0.02em;
}

/* Center Big Play/Pause Button */
.center-action-overlay {
  position: absolute;
  inset: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.center-play-btn {
  pointer-events: auto;
  width: 84px;
  height: 84px;
  border-radius: 50%;
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass-highlight);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), 0 0 35px var(--accent-glow);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  transform: scale(0.85);
  transition: all var(--transition-normal);
}

.center-play-btn svg {
  width: 36px;
  height: 36px;
  margin-left: 4px; /* Optical center for play triangle */
  fill: #ffffff;
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.4));
}

.video-stage:hover .center-play-btn,
.video-stage.is-paused .center-play-btn {
  opacity: 1;
  transform: scale(1);
}

.center-play-btn:hover {
  background: var(--bg-glass-hover);
  border-color: #ffffff;
  transform: scale(1.1);
  box-shadow: 0 16px 50px rgba(0, 0, 0, 0.6), 0 0 45px rgba(99, 102, 241, 0.6);
}

.center-play-btn:active {
  transform: scale(0.95);
}

/* Touch Seek Ripple Feedback (+5s / -5s) */
.touch-feedback {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 40%;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  z-index: 22;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.touch-feedback.feedback-left {
  left: 0;
  background: radial-gradient(circle at left center, rgba(99, 102, 241, 0.25) 0%, transparent 70%);
}

.touch-feedback.feedback-right {
  right: 0;
  background: radial-gradient(circle at right center, rgba(99, 102, 241, 0.25) 0%, transparent 70%);
}

.touch-feedback-bubble {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 14px 20px;
  border-radius: var(--radius-pill);
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass-highlight);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  box-shadow: var(--shadow-elevated);
  transform: scale(0.8);
  transition: transform 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.touch-feedback.active {
  opacity: 1;
}

.touch-feedback.active .touch-feedback-bubble {
  transform: scale(1);
}

/* ==========================================================================
   Custom Glassmorphic Controls Bar
   ========================================================================== */
.controls-overlay {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 30;
  padding: 36px 24px 20px 24px;
  background: linear-gradient(to top, rgba(6, 8, 13, 0.92) 0%, rgba(6, 8, 13, 0.6) 65%, transparent 100%);
  display: flex;
  flex-direction: column;
  gap: 12px;
  opacity: 1;
  transform: translateY(0);
  transition: opacity var(--transition-normal), transform var(--transition-normal);
  pointer-events: auto;
}

.video-stage.controls-hidden .controls-overlay {
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
}

/* Progress Scrubber Container */
.scrubber-container {
  position: relative;
  width: 100%;
  height: 20px;
  display: flex;
  align-items: center;
  cursor: pointer;
}

.scrubber-track {
  position: relative;
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 4px;
  overflow: visible;
  transition: height var(--transition-fast);
}

.scrubber-container:hover .scrubber-track {
  height: 9px;
}

.scrubber-buffer {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 0%;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 4px;
  pointer-events: none;
  transition: width 0.2s ease;
}

.scrubber-progress {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 0%;
  background: var(--accent-gradient);
  border-radius: 4px;
  box-shadow: 0 0 12px var(--accent-glow);
  pointer-events: none;
}

.scrubber-thumb {
  position: absolute;
  top: 50%;
  right: -7px;
  width: 16px;
  height: 16px;
  background: #ffffff;
  border-radius: 50%;
  transform: translateY(-50%) scale(0);
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.5), 0 0 12px rgba(99, 102, 241, 0.8);
  transition: transform var(--transition-fast);
}

.scrubber-container:hover .scrubber-thumb,
.scrubber-container.is-dragging .scrubber-thumb {
  transform: translateY(-50%) scale(1);
}

.scrubber-tooltip {
  position: absolute;
  top: -34px;
  transform: translateX(-50%);
  padding: 4px 8px;
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid var(--border-glass-highlight);
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-fast);
  white-space: nowrap;
}

.scrubber-container:hover .scrubber-tooltip {
  opacity: 1;
}

/* Main Controls Row */
.controls-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.controls-left, .controls-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Control Buttons */
.ctrl-btn {
  position: relative;
  background: transparent;
  border: none;
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.ctrl-btn:hover {
  background: var(--bg-glass-hover);
  color: #ffffff;
  transform: translateY(-1px);
}

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

.ctrl-btn svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}

/* Volume Control Box */
.volume-group {
  display: flex;
  align-items: center;
  position: relative;
}

.volume-slider-wrap {
  width: 0;
  overflow: hidden;
  display: flex;
  align-items: center;
  transition: width var(--transition-normal), opacity var(--transition-normal);
  opacity: 0;
}

.volume-group:hover .volume-slider-wrap,
.volume-slider-wrap.active {
  width: 80px;
  opacity: 1;
  margin-left: 6px;
}

.volume-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 76px;
  height: 5px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.25);
  outline: none;
  cursor: pointer;
}

.volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 0 6px rgba(0, 0, 0, 0.4);
  cursor: pointer;
}

/* Time Display */
.time-display {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
  margin-left: 6px;
}

.time-current {
  color: #ffffff;
}

.time-divider {
  color: var(--text-muted);
}

/* Speed / Settings Menu */
.settings-menu {
  position: absolute;
  bottom: 74px;
  right: 24px;
  background: var(--bg-glass);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--border-glass-highlight);
  border-radius: var(--radius-md);
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  box-shadow: var(--shadow-elevated);
  z-index: 40;
  opacity: 0;
  transform: translateY(10px) scale(0.95);
  pointer-events: none;
  transition: all var(--transition-fast);
}

.settings-menu.open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.speed-option {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 8px 16px;
  font-size: 0.82rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: all var(--transition-fast);
}

.speed-option:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.speed-option.active {
  color: #818cf8;
  background: rgba(99, 102, 241, 0.15);
}

/* Bottom Shortcut Hints Bar */
.bottom-hints {
  position: absolute;
  bottom: max(12px, env(safe-area-inset-bottom));
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--text-muted);
  font-size: 0.75rem;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.hint-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.key-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px 6px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 4px;
  font-family: monospace;
  font-size: 0.7rem;
  color: #cbd5e1;
}

/* ==========================================================================
   Mobile Navigation Drawer
   ========================================================================== */
.mobile-nav-drawer {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  justify-content: flex-end;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.mobile-nav-drawer.open {
  pointer-events: auto;
  opacity: 1;
  visibility: visible;
}

.mobile-drawer-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(4, 6, 11, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: opacity var(--transition-normal);
}

.mobile-drawer-content {
  position: relative;
  z-index: 2;
  width: min(380px, 88vw);
  height: 100%;
  background: rgba(13, 18, 30, 0.94);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  border-left: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: -10px 0 40px rgba(0, 0, 0, 0.7);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: max(24px, env(safe-area-inset-top)) 24px max(24px, env(safe-area-inset-bottom)) 24px;
  transform: translateX(100%);
  transition: transform var(--transition-normal) cubic-bezier(0.16, 1, 0.3, 1);
  overflow-y: auto;
}

.mobile-nav-drawer.open .mobile-drawer-content {
  transform: translateX(0);
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.brand-badge-mobile {
  display: flex;
  align-items: center;
  gap: 10px;
}

.mobile-close-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.mobile-close-btn:hover {
  background: rgba(255, 255, 255, 0.18);
  transform: rotate(90deg);
}

.mobile-close-btn svg {
  width: 18px;
  height: 18px;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 32px 0;
}

.mobile-nav-link {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-secondary);
  font-family: var(--font-display);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
}

.mobile-link-num {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-primary-light);
  font-family: monospace;
}

.mobile-link-title {
  font-size: 1.05rem;
  font-weight: 600;
  flex-grow: 1;
  margin-left: 14px;
}

.mobile-link-arrow {
  width: 18px;
  height: 18px;
  opacity: 0.5;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(56, 189, 248, 0.12));
  border-color: rgba(99, 102, 241, 0.35);
  color: #ffffff;
  transform: translateX(4px);
}

.mobile-nav-link:hover .mobile-link-arrow,
.mobile-nav-link.active .mobile-link-arrow {
  opacity: 1;
  transform: translateX(3px);
  color: #38bdf8;
}

.mobile-drawer-footer {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.mobile-cta-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 20px;
  background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-pill);
  color: #ffffff;
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
  transition: all var(--transition-fast);
}

.mobile-cta-btn:hover {
  background: linear-gradient(135deg, #818cf8 0%, #6366f1 100%);
  transform: translateY(-1px);
}

.mobile-cta-btn svg {
  width: 16px;
  height: 16px;
}

.mobile-contact-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-info-link {
  color: var(--text-secondary);
  font-size: 0.82rem;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.mobile-info-link:hover {
  color: var(--color-primary-light);
}

.mobile-info-tag {
  color: var(--text-muted);
  font-size: 0.72rem;
}

/* ==========================================================================
   Glassmorphic Interactive Modals
   ========================================================================== */
.site-modal {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.site-modal.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(4, 6, 11, 0.78);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.modal-card {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 620px;
  max-height: min(88vh, 750px);
  overflow-y: auto;
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(32px);
  -webkit-backdrop-filter: blur(32px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8), 0 0 40px rgba(99, 102, 241, 0.2);
  padding: 32px;
  transform: scale(0.94) translateY(12px);
  transition: transform var(--transition-normal) cubic-bezier(0.16, 1, 0.3, 1);
}

.site-modal.open .modal-card {
  transform: scale(1) translateY(0);
}

.modal-close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
  transform: rotate(90deg);
}

.modal-close-btn svg {
  width: 16px;
  height: 16px;
}

.modal-header {
  margin-bottom: 22px;
  padding-right: 36px;
}

.modal-header-brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.modal-brand-logo {
  width: 52px;
  height: 52px;
  object-fit: cover;
  border-radius: 12px;
  background: #ffffff;
  padding: 2px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4), 0 0 14px rgba(99, 102, 241, 0.3);
  flex-shrink: 0;
}

.modal-eyebrow {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary-light);
  margin-bottom: 6px;
}

.modal-title {
  font-family: var(--font-display);
  font-size: 1.55rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #ffffff;
  line-height: 1.25;
}

.modal-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 24px;
}

.modal-desc strong {
  color: #fff;
}

.modal-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

.stat-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 16px 12px;
  text-align: center;
}

.stat-value {
  display: block;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  background: linear-gradient(135deg, #ffffff 0%, #38bdf8 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.modal-pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.modal-pill {
  font-size: 0.76rem;
  font-weight: 600;
  padding: 5px 12px;
  background: rgba(99, 102, 241, 0.15);
  border: 1px solid rgba(99, 102, 241, 0.3);
  color: #c7d2fe;
  border-radius: var(--radius-pill);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 20px;
}

.modal-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 24px;
  background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-pill);
  color: #ffffff;
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
  transition: all var(--transition-fast);
}

.modal-action-btn:hover {
  background: linear-gradient(135deg, #818cf8 0%, #6366f1 100%);
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(99, 102, 241, 0.6);
}

.modal-action-btn svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.modal-action-btn:hover svg {
  transform: translateX(3px);
}

/* Services Modal Grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-bottom: 24px;
}

.service-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: all var(--transition-fast);
}

.service-item:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(99, 102, 241, 0.35);
  transform: translateY(-2px);
}

.service-icon-wrap {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.25), rgba(56, 189, 248, 0.15));
  border: 1px solid rgba(99, 102, 241, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #38bdf8;
}

.service-icon-wrap svg {
  width: 20px;
  height: 20px;
}

.service-name {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 4px;
}

.service-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

/* Contact Modal Layout */
.contact-channels {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 22px;
}

.contact-channel-item {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-fast);
}

.contact-channel-item:hover {
  background: rgba(99, 102, 241, 0.12);
  border-color: rgba(99, 102, 241, 0.3);
}

.contact-channel-item svg {
  width: 20px;
  height: 20px;
  color: var(--color-primary-light);
  flex-shrink: 0;
}

.channel-label {
  display: block;
  font-size: 0.68rem;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.channel-val {
  font-size: 0.82rem;
  font-weight: 600;
  color: #ffffff;
}

/* Inquiry Form */
.inquiry-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: rgba(10, 15, 28, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: #ffffff;
  font-family: inherit;
  font-size: 0.86rem;
  outline: none;
  transition: all var(--transition-fast);
}

.form-group select {
  cursor: pointer;
}

.form-group select option {
  background: #0f172a;
  color: #ffffff;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: #6366f1;
  background: rgba(15, 23, 42, 0.9);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.25);
}

.submit-btn {
  width: 100%;
  justify-content: center;
  margin-top: 6px;
}

/* Glass Toast Notification */
.glass-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(30px);
  z-index: 150;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 22px;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(16, 185, 129, 0.4);
  border-radius: var(--radius-pill);
  box-shadow: 0 10px 35px rgba(0, 0, 0, 0.7), 0 0 20px rgba(16, 185, 129, 0.25);
  color: #ffffff;
  font-size: 0.85rem;
  font-weight: 500;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal) cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
}

.glass-toast.show {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.toast-icon {
  width: 20px;
  height: 20px;
  color: #10b981;
  display: flex;
  align-items: center;
  justify-content: center;
}

.toast-icon svg {
  width: 100%;
  height: 100%;
}

/* ==========================================================================
   Responsive Adaptations (Mobile, Tablet, Desktop)
   ========================================================================== */

/* Medium Screens & Laptops (<= 1024px) */
@media (max-width: 1024px) {
  .video-stage {
    max-width: 98vw;
    height: min(80vh, 760px);
  }

  .main-nav {
    padding: 3px 5px;
  }

  .nav-link {
    padding: 6px 12px;
    font-size: 0.8rem;
  }

  .nav-cta-btn {
    padding: 7px 14px;
    font-size: 0.78rem;
  }
}

/* Tablet & Mobile Breakpoint (<= 880px) */
@media (max-width: 880px) {
  .main-nav {
    display: none;
  }

  .nav-cta-btn {
    display: none;
  }

  .mobile-menu-btn {
    display: inline-flex;
  }
}

/* Mobile Devices (<= 768px) */
@media (max-width: 768px) {
  .app-wrapper {
    padding: env(safe-area-inset-top, 8px) env(safe-area-inset-right, 8px) env(safe-area-inset-bottom, 8px) env(safe-area-inset-left, 8px);
  }

  .video-stage {
    width: 100%;
    max-width: 100vw;
    height: 100%;
    max-height: calc(100dvh - 16px);
    border-radius: var(--radius-md);
  }

  .brand-badge {
    padding: 6px 12px;
    gap: 8px;
  }

  .brand-logo-icon {
    width: 30px;
    height: 30px;
    border-radius: 6px;
  }

  .brand-subtitle {
    display: none;
  }

  .brand-tag {
    display: none;
  }

  .sound-prompt-bar {
    top: max(60px, calc(env(safe-area-inset-top) + 48px));
  }

  .sound-prompt-btn {
    padding: 10px 18px;
    font-size: 0.86rem;
  }

  .center-play-btn {
    width: 68px;
    height: 68px;
  }

  .center-play-btn svg {
    width: 28px;
    height: 28px;
  }

  .controls-overlay {
    padding: 24px 14px 14px 14px;
    gap: 8px;
  }

  .ctrl-btn {
    width: 36px;
    height: 36px;
  }

  .ctrl-btn svg {
    width: 20px;
    height: 20px;
  }

  .volume-slider-wrap {
    display: none; /* Hide volume slider on mobile, volume is handled via device buttons */
  }

  .time-display {
    font-size: 0.74rem;
  }

  .bottom-hints {
    display: none; /* Hide keyboard hints on touch devices */
  }

  .fit-toggle-btn {
    display: inline-flex;
  }

  .modal-card {
    padding: 24px 18px;
  }

  .modal-title {
    font-size: 1.25rem;
  }

  .modal-stats-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }

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

  .contact-channels {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}

/* Small Smartphone (<= 480px) */
@media (max-width: 480px) {
  .site-header {
    top: max(10px, env(safe-area-inset-top));
    left: max(10px, env(safe-area-inset-left));
    right: max(10px, env(safe-area-inset-right));
  }

  .brand-title {
    font-size: 0.82rem;
  }

  .sound-status-text {
    display: none;
  }

  .sound-indicator {
    padding: 6px 10px;
  }

  .speed-btn {
    display: none;
  }
}

/* Landscape Mode for Smartphones */
@media (max-height: 500px) and (orientation: landscape) {
  .video-stage {
    height: 100vh;
    height: 100dvh;
    max-height: 100dvh;
    border-radius: 0;
    border: none;
  }

  .site-header {
    top: 8px;
  }

  .sound-prompt-bar {
    top: 40px;
  }

  .bottom-hints {
    display: none;
  }
}