/* Mindful Zen - Modern 2026 UI Design System */
@import url('https://fonts.googleapis.com/css2?family=Kanit:ital,wght@0,300;0,400;0,500;0,600;0,700;1,300&family=Prompt:ital,wght@0,300;0,400;0,500;0,600;1,300&family=Sarabun:ital,wght@0,300;0,400;0,500;0,600;1,300&family=Cinzel:wght@500;700&display=swap');

:root {
  --font-heading: 'Kanit', sans-serif;
  --font-body: 'Prompt', 'Sarabun', sans-serif;
  --font-serif: 'Cinzel', serif;

  /* Deep Celestial Night Palette */
  --bg-deep: #07090e;
  --bg-surface: #0e131f;
  --bg-card: rgba(18, 24, 38, 0.72);
  --bg-card-hover: rgba(28, 37, 58, 0.85);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-highlight: rgba(245, 158, 11, 0.35);

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-faint: #64748b;

  --accent-gold: #f59e0b;
  --accent-gold-light: #fef3c7;
  --accent-gold-glow: rgba(245, 158, 11, 0.28);
  --accent-cyan: #38bdf8;
  --accent-emerald: #10b981;
  --accent-lotus: #fb7185;
}

body.light-theme {
  --bg-deep: #f8fafc;
  --bg-surface: #f1f5f9;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-hover: rgba(255, 255, 255, 0.95);
  --border-subtle: rgba(0, 0, 0, 0.08);
  --border-highlight: rgba(217, 119, 6, 0.4);

  --text-main: #0f172a;
  --text-muted: #475569;
  --text-faint: #94a3b8;

  --accent-gold: #d97706;
  --accent-gold-light: #78350f;
  --accent-gold-glow: rgba(217, 119, 6, 0.2);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--bg-deep);
  color: var(--text-main);
  min-height: 100vh;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(245, 158, 11, 0.08) 0%, transparent 60%),
    radial-gradient(circle at 10% 40%, rgba(56, 189, 248, 0.05) 0%, transparent 40%),
    radial-gradient(circle at 90% 70%, rgba(251, 113, 133, 0.05) 0%, transparent 40%);
  background-attachment: fixed;
}

h1, h2, h3, h4, .font-heading {
  font-family: var(--font-heading);
  letter-spacing: -0.01em;
}

/* Frosted Glass & Elevated Depth */
.glass-panel {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5), inset 0 1px 1px rgba(255, 255, 255, 0.1);
}

.glass-panel-gold {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.12) 0%, rgba(18, 24, 38, 0.7) 100%);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-highlight);
  box-shadow: 0 12px 35px -8px rgba(245, 158, 11, 0.15), inset 0 1px 1px rgba(254, 243, 199, 0.2);
}

.gold-gradient {
  background: linear-gradient(135deg, #fef08a 0%, #f59e0b 50%, #d97706 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.btn-primary-gold {
  background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 60%, #d97706 100%);
  color: #0f172a;
  font-weight: 600;
  box-shadow: 0 4px 20px -2px rgba(245, 158, 11, 0.4);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
.btn-primary-gold:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 25px -2px rgba(245, 158, 11, 0.55);
}
.btn-primary-gold:active {
  transform: translateY(1px) scale(0.98);
}

/* Karaoke Sync Verses & Word-level Highlighting */
.verse-box {
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  opacity: 0.4;
  transform: scale(0.98);
  border-left: 3px solid transparent;
}

.verse-box.active-verse {
  opacity: 1;
  transform: scale(1.02);
  background: linear-gradient(90deg, rgba(245, 158, 11, 0.18) 0%, rgba(18, 24, 38, 0.75) 100%);
  border-left: 3px solid var(--accent-gold);
  box-shadow: 0 10px 30px -5px rgba(245, 158, 11, 0.15);
}

.karaoke-word {
  display: inline-block;
  transition: all 0.2s ease-out;
  padding: 0 1px;
}

.karaoke-word.karaoke-word-active {
  color: #fff;
  text-shadow: 0 0 12px rgba(254, 240, 138, 0.9), 0 0 24px rgba(245, 158, 11, 0.6);
  transform: translateY(-1px) scale(1.04);
}

/* Breathing Aura for Visualization */
@keyframes sacredBreath {
  0% {
    transform: scale(1);
    filter: brightness(1) drop-shadow(0 0 20px rgba(245, 158, 11, 0.25));
  }
  50% {
    transform: scale(1.04);
    filter: brightness(1.15) drop-shadow(0 0 45px rgba(245, 158, 11, 0.55));
  }
  100% {
    transform: scale(1);
    filter: brightness(1) drop-shadow(0 0 20px rgba(245, 158, 11, 0.25));
  }
}

.sacred-aura {
  animation: sacredBreath 8s ease-in-out infinite;
}

/* Floating Ember / Petal Animation */
@keyframes floatUp {
  0% { transform: translateY(0) rotate(0deg); opacity: 0; }
  50% { opacity: 0.8; }
  100% { transform: translateY(-80px) rotate(45deg); opacity: 0; }
}

/* Lotus Flower Reward Animation */
@keyframes bloomPop {
  0% { transform: scale(0.3) rotate(-20deg); opacity: 0; }
  70% { transform: scale(1.12) rotate(6deg); opacity: 1; }
  100% { transform: scale(1) rotate(0deg); opacity: 1; }
}
.reward-bloom {
  animation: bloomPop 1s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

/* Custom modern scrollbar */
::-webkit-scrollbar {
  width: 5px;
  height: 5px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 9999px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* Simulator Frame for desktop showcase */
.device-container {
  max-width: 460px;
  min-height: 890px;
  margin: 0 auto;
  border-radius: 3rem;
  overflow: hidden;
  box-shadow: 0 25px 70px -15px rgba(0, 0, 0, 0.8), 0 0 0 10px #1e293b, 0 0 0 12px rgba(245, 158, 11, 0.2);
}

.fullscreen-view .device-container {
  max-width: 100%;
  min-height: 100vh;
  border-radius: 0;
  box-shadow: none;
}