/**
 * TABLA MACHINE - Main Stylesheet
 * A warm, refined design honoring the traditional craft of tabla
 */

/* ═══════════════════════════════════════════════════════════════════════════
   CSS VARIABLES
   ═══════════════════════════════════════════════════════════════════════════ */

:root {
  /* Primary Palette - Butterscotch & Warm Gold */
  --primary: #E0A050;
  --primary-dark: #C78B3D;
  --primary-light: #F0C78A;
  --primary-glow: rgba(224, 160, 80, 0.35);

  /* Secondary - Rich Chocolate */
  --secondary: #6B3A2A;
  --secondary-dark: #4A2518;
  --secondary-light: #8B5E3C;

  /* Accent Colors */
  --accent-sam: #FFD700;
  --accent-sam-glow: rgba(255, 215, 0, 0.5);
  --accent-khali: #4ECDC4;
  --accent-khali-glow: rgba(78, 205, 196, 0.4);
  --accent-tali: #FF6B6B;

  /* Background - Warm Cream */
  --bg-primary: #FEF6EB;
  --bg-secondary: #F8E8D0;
  --bg-tertiary: #F0D9B8;
  --bg-card: #FFFAF3;

  /* Text */
  --text-primary: #2A1A0E;
  --text-secondary: #5C4330;
  --text-muted: #8D7256;
  --text-light: #B69E80;

  /* Slider - Butterscotch knob & track */
  --slider-knob: #C78B3D;
  --slider-knob-border: #F0C78A;
  --slider-fill: #E0A050;
  --slider-track: #D4B896;

  /* Status */
  --success: #4CAF50;
  --warning: #FF9800;
  --error: #F44336;

  /* Premium */
  --premium-gold: #FFD700;
  --premium-gradient: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(42, 26, 14, 0.08);
  --shadow-md: 0 4px 20px rgba(42, 26, 14, 0.12);
  --shadow-lg: 0 8px 40px rgba(42, 26, 14, 0.16);
  --shadow-glow: 0 0 30px var(--primary-glow);

  /* Typography */
  --font-hindi: 'Tiro Devanagari Hindi', serif;
  --font-display: 'Crimson Pro', serif;
  --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Sizing */
  --header-height: 64px;
  --border-radius: 12px;
  --border-radius-lg: 20px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-slow: 0.4s ease;
}

/* Dark Theme (Premium) */
[data-theme="dark"] {
  --bg-primary: #1A1A2E;
  --bg-secondary: #16213E;
  --bg-tertiary: #1F2A48;
  --bg-card: #1F2A48;
  --text-primary: #EAEAEA;
  --text-secondary: #B8B8B8;
  --text-muted: #888888;
  --primary: #E8C07D;
  --primary-dark: #D4A574;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
}

/* ═══════════════════════════════════════════════════════════════════════════
   RESET & BASE STYLES
   ═══════════════════════════════════════════════════════════════════════════ */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Background Pattern */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 80%, rgba(212, 165, 116, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(139, 69, 19, 0.05) 0%, transparent 40%),
    linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  pointer-events: none;
  z-index: -1;
}

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

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
}

input[type="number"] {
  -moz-appearance: textfield;
}

input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* ═══════════════════════════════════════════════════════════════════════════
   LOADING SCREEN
   ═══════════════════════════════════════════════════════════════════════════ */

.loading-screen {
  position: fixed;
  inset: 0;
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-screen.hidden {
  opacity: 0;
  visibility: hidden;
}

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

.loading-tabla {
  display: flex;
  gap: 20px;
  justify-content: center;
  margin-bottom: 24px;
}

.tabla-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  animation: pulse-tabla 1.5s ease-in-out infinite;
}

.tabla-icon.dayan {
  background: radial-gradient(circle at 40% 40%, var(--primary-light), var(--primary));
  box-shadow: inset 0 -10px 20px rgba(0,0,0,0.2), 0 5px 20px var(--primary-glow);
}

.tabla-icon.dayan::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 30%;
  height: 30%;
  background: var(--text-primary);
  border-radius: 50%;
}

.tabla-icon.bayan {
  background: radial-gradient(circle at 40% 40%, #CD7F32, #8B4513);
  box-shadow: inset 0 -10px 20px rgba(0,0,0,0.3), 0 5px 20px rgba(139, 69, 19, 0.4);
  animation-delay: 0.2s;
}

@keyframes pulse-tabla {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

.loading-title {
  font-family: var(--font-hindi);
  font-size: 3rem;
  color: var(--primary);
  margin-bottom: 4px;
}

.loading-subtitle {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--text-secondary);
  letter-spacing: 0.1em;
  margin-bottom: 32px;
}

.loading-bar {
  width: 200px;
  height: 4px;
  background: var(--bg-tertiary);
  border-radius: 2px;
  overflow: hidden;
  margin: 0 auto;
}

.loading-progress {
  height: 100%;
  background: var(--primary);
  width: 0%;
  animation: loading-progress 2s ease-out forwards;
}

@keyframes loading-progress {
  0% { width: 0%; }
  100% { width: 100%; }
}

/* ═══════════════════════════════════════════════════════════════════════════
   APP CONTAINER
   ═══════════════════════════════════════════════════════════════════════════ */

.app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  opacity: 0;
  animation: fadeIn 0.5s ease 2s forwards;
}

@keyframes fadeIn {
  to { opacity: 1; }
}

/* ═══════════════════════════════════════════════════════════════════════════
   HEADER
   ═══════════════════════════════════════════════════════════════════════════ */

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 248, 240, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(212, 165, 116, 0.2);
  height: var(--header-height);
}

[data-theme="dark"] .header {
  background: rgba(26, 26, 46, 0.9);
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  font-size: 1.8rem;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-hindi {
  font-family: var(--font-hindi);
  font-size: 1.4rem;
  color: var(--primary);
  line-height: 1.1;
}

.logo-english {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-btn {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

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

.nav-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.premium-btn {
  width: auto;
  padding: 8px 16px;
  gap: 6px;
  background: var(--premium-gradient);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.85rem;
}

.premium-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(255, 215, 0, 0.4);
}

.premium-icon {
  font-size: 1rem;
}

/* ═══════════════════════════════════════════════════════════════════════════
   MAIN CONTENT
   ═══════════════════════════════════════════════════════════════════════════ */

.main {
  flex: 1;
  max-width: 1000px;
  margin: 0 auto;
  padding: 24px 20px 40px;
  width: 100%;
}

.section-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

/* ═══════════════════════════════════════════════════════════════════════════
   TAAL SELECTOR
   ═══════════════════════════════════════════════════════════════════════════ */

.taal-selector {
  margin-bottom: 32px;
}

.taal-header {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 20px;
}

.taal-category-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.category-tab {
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--bg-tertiary);
  transition: all var(--transition-fast);
}

.category-tab:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.category-tab.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.category-tab.premium-locked {
  background: linear-gradient(135deg, var(--bg-card), var(--bg-tertiary));
}

.taal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
}

.taal-card {
  padding: 16px;
  background: var(--bg-card);
  border-radius: var(--border-radius);
  border: 2px solid transparent;
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: all var(--transition-normal);
  text-align: center;
}

.taal-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-light);
}

.taal-card.active {
  border-color: var(--primary);
  background: linear-gradient(135deg, var(--bg-card), rgba(212, 165, 116, 0.1));
  box-shadow: var(--shadow-glow);
}

.taal-card.premium {
  position: relative;
  opacity: 0.7;
}

.taal-card.premium::after {
  content: '✦';
  position: absolute;
  top: 8px;
  right: 8px;
  color: var(--premium-gold);
  font-size: 0.8rem;
}

.taal-card-name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.taal-card-hindi {
  font-family: var(--font-hindi);
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.taal-card-beats {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ═══════════════════════════════════════════════════════════════════════════
   CURRENT TAAL DISPLAY
   ═══════════════════════════════════════════════════════════════════════════ */

.current-taal {
  text-align: center;
  margin-bottom: 32px;
}

.taal-info {
  padding: 24px;
  background: var(--bg-card);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
}

.taal-name {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.taal-name-hindi {
  font-family: var(--font-hindi);
  font-size: 1.8rem;
  color: var(--primary);
  margin-bottom: 12px;
}

.taal-details {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.detail-separator {
  color: var(--text-muted);
}

/* ═══════════════════════════════════════════════════════════════════════════
   BEAT VISUALIZER
   ═══════════════════════════════════════════════════════════════════════════ */

.visualizer {
  margin-bottom: 32px;
}

.visualizer-container {
  display: flex;
  justify-content: center;
  margin-bottom: 24px;
}

/* Circular Beat Display */
.beat-circle-container {
  position: relative;
  width: 300px;
  height: 300px;
}

.beat-circle-inner {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120px;
  height: 120px;
  background: var(--bg-card);
  border-radius: 50%;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

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

.current-beat-number {
  display: block;
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
}

.current-bol {
  display: block;
  font-family: var(--font-hindi);
  font-size: 1.5rem;
  color: var(--primary);
  margin-top: 4px;
}

/* Beat Markers */
.beat-marker {
  position: absolute;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 2px solid var(--bg-tertiary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transform: translate(-50%, -50%);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.beat-marker-number {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  line-height: 1;
}

.beat-marker-bol {
  font-family: var(--font-hindi);
  font-size: 0.65rem;
  color: var(--text-muted);
  line-height: 1;
  margin-top: 2px;
}

/* Sam Marker */
.beat-marker.sam {
  background: var(--accent-sam);
  border-color: var(--accent-sam);
}

.beat-marker.sam .beat-marker-number,
.beat-marker.sam .beat-marker-bol {
  color: var(--text-primary);
}

/* Khali Marker */
.beat-marker.khali {
  border-color: var(--accent-khali);
}

.beat-marker.khali .beat-marker-number {
  color: var(--accent-khali);
}

/* Tali Marker */
.beat-marker.tali {
  border-color: var(--primary);
}

/* Active Beat */
.beat-marker.active {
  transform: translate(-50%, -50%) scale(1.2);
  box-shadow: 0 0 20px var(--primary-glow);
  z-index: 20;
}

.beat-marker.sam.active {
  box-shadow: 0 0 25px var(--accent-sam-glow);
}

.beat-marker.khali.active {
  box-shadow: 0 0 25px var(--accent-khali-glow);
}

/* Linear Theka Display */
.theka-display {
  background: var(--bg-card);
  padding: 20px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  overflow-x: auto;
  touch-action: pan-y pan-x;
}

.theka-row {
  display: flex;
  gap: 4px;
  justify-content: center;
  flex-wrap: wrap;
  min-width: max-content;
}

.bol-box {
  min-width: 48px;
  padding: 10px 8px;
  text-align: center;
  background: var(--bg-secondary);
  border-radius: 8px;
  border: 2px solid transparent;
  transition: all var(--transition-fast);
}

.bol-box.sam {
  background: rgba(255, 215, 0, 0.2);
  border-color: var(--accent-sam);
}

.bol-box.khali {
  border-color: var(--accent-khali);
}

.bol-box.tali {
  border-top: 3px solid var(--primary);
}

.bol-box.active {
  background: var(--primary);
  border-color: var(--primary);
  transform: scale(1.05);
}

.bol-box.active .bol-text,
.bol-box.active .bol-hindi {
  color: white;
}

.bol-box.sam.active {
  background: var(--accent-sam);
  border-color: var(--accent-sam);
}

.bol-box.sam.active .bol-text,
.bol-box.sam.active .bol-hindi {
  color: var(--text-primary);
}

.bol-text {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.bol-hindi {
  font-family: var(--font-hindi);
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.bol-number {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Vibhag Separators */
.vibhag-separator {
  width: 2px;
  background: var(--primary);
  margin: 0 8px;
  border-radius: 1px;
  align-self: stretch;
}

/* ═══════════════════════════════════════════════════════════════════════════
   CONTROLS
   ═══════════════════════════════════════════════════════════════════════════ */

.controls {
  background: var(--bg-card);
  padding: 24px;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  margin-bottom: 32px;
}

.control-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.volume-icon {
  width: 18px;
  height: 18px;
}

/* Tempo Control */
.tempo-control {
  margin-bottom: 24px;
}

.tempo-display {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 16px;
}

.tempo-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.tempo-btn svg {
  width: 20px;
  height: 20px;
  color: var(--text-primary);
}

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

.tempo-btn:hover svg {
  color: white;
}

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

.tempo-value-container {
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.tempo-input {
  width: 80px;
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--text-primary);
  text-align: center;
  background: transparent;
  border: none;
  outline: none;
}

.tempo-unit {
  font-size: 1rem;
  color: var(--text-muted);
}

.tempo-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 8px;
  border-radius: 4px;
  background: var(--slider-track);
  margin-bottom: 8px;
  outline: none;
  border: none;
  cursor: pointer;
}

.tempo-slider::-webkit-slider-runnable-track {
  -webkit-appearance: none;
  appearance: none;
  height: 8px;
  border-radius: 4px;
  background: var(--slider-track);
  border: none;
}

.tempo-slider::-moz-range-track {
  appearance: none;
  height: 8px;
  border-radius: 4px;
  background: var(--slider-track);
  border: none;
}

.tempo-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--slider-knob);
  border: 3px solid var(--slider-knob-border);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0,0,0,0.25);
  margin-top: -10px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.tempo-slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
  box-shadow: 0 3px 12px rgba(0,0,0,0.35);
}

.tempo-slider::-moz-range-thumb {
  appearance: none;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--slider-knob);
  border: 3px solid var(--slider-knob-border);
  cursor: pointer;
}

.tempo-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Layakari Control */
.layakari-control {
  margin-bottom: 24px;
  padding: 16px;
  background: var(--bg-secondary);
  border-radius: var(--border-radius);
  position: relative;
}

.layakari-control.premium-feature::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.5);
  border-radius: inherit;
  z-index: 1;
}

.layakari-control.premium-feature::after {
  content: '🔒 Premium Feature';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--bg-card);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  box-shadow: var(--shadow-md);
  z-index: 2;
}

.premium-badge {
  font-size: 0.7rem;
  padding: 2px 6px;
  background: var(--premium-gradient);
  color: var(--text-primary);
  border-radius: 4px;
  font-weight: 600;
}

.layakari-buttons {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.layakari-btn {
  padding: 10px 16px;
  font-family: var(--font-hindi);
  font-size: 1rem;
  background: var(--bg-card);
  border-radius: 8px;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.layakari-btn:hover {
  background: var(--primary-light);
}

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

/* Scale/Pitch Selector */
.scale-control {
  margin-bottom: 24px;
}

.scale-buttons {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.scale-btn {
  min-width: 36px;
  padding: 8px 6px;
  font-size: 0.8rem;
  font-weight: 600;
  background: var(--bg-secondary);
  border-radius: 8px;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  text-align: center;
}

.scale-btn:hover {
  background: var(--primary-light);
  color: var(--text-primary);
}

.scale-btn.active {
  background: var(--primary);
  color: white;
  box-shadow: 0 2px 8px var(--primary-glow);
}

/* Volume Control */
.volume-control {
  margin-bottom: 24px;
}

.volume-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--slider-track);
  outline: none;
  border: none;
  cursor: pointer;
}

.volume-slider::-webkit-slider-runnable-track {
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  border-radius: 3px;
  background: var(--slider-track);
  border: none;
}

.volume-slider::-moz-range-track {
  appearance: none;
  height: 6px;
  border-radius: 3px;
  background: var(--slider-track);
  border: none;
}

.volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--slider-knob);
  border: 3px solid var(--slider-knob-border);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0,0,0,0.25);
  margin-top: -9px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.volume-slider::-moz-range-thumb {
  appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--slider-knob);
  border: 3px solid var(--slider-knob-border);
  cursor: pointer;
}

/* Toggle Options */
.option-toggles {
  margin-bottom: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.toggle-option {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
}

.toggle-option input {
  display: none;
}

.toggle-slider {
  width: 44px;
  height: 24px;
  background: var(--bg-tertiary);
  border-radius: 12px;
  position: relative;
  transition: all var(--transition-fast);
}

.toggle-slider::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  background: white;
  border-radius: 50%;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.toggle-option input:checked + .toggle-slider {
  background: var(--primary);
}

.toggle-option input:checked + .toggle-slider::after {
  left: 22px;
}

.toggle-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Play Controls */
.play-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
}

.control-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.control-btn svg {
  width: 24px;
  height: 24px;
  color: var(--text-primary);
}

.control-btn:hover {
  background: var(--bg-tertiary);
  transform: scale(1.05);
}

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

.btn-play {
  width: 72px;
  height: 72px;
  background: var(--primary);
  box-shadow: var(--shadow-md);
}

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

.btn-play:hover {
  background: var(--primary-dark);
  box-shadow: var(--shadow-lg);
}

.btn-play.playing .play-icon {
  display: none;
}

.btn-play.playing .pause-icon {
  display: block !important;
}

/* ═══════════════════════════════════════════════════════════════════════════
   TAAL DESCRIPTION
   ═══════════════════════════════════════════════════════════════════════════ */

.taal-description {
  background: var(--bg-card);
  padding: 20px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
}

.taal-description h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--text-primary);
  margin-bottom: 12px;
}

#taal-description-text {
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.7;
}

.usage-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.usage-tag {
  padding: 6px 12px;
  background: var(--bg-secondary);
  border-radius: 16px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* ═══════════════════════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════════════════════ */

.footer {
  text-align: center;
  padding: 24px 20px;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-note {
  margin-top: 8px;
  font-size: 0.8rem;
}

.footer kbd {
  padding: 2px 6px;
  background: var(--bg-tertiary);
  border-radius: 4px;
  font-family: monospace;
  font-size: 0.75rem;
}

/* ═══════════════════════════════════════════════════════════════════════════
   MODALS
   ═══════════════════════════════════════════════════════════════════════════ */

.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  background: var(--bg-card);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  max-width: 500px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(20px);
  transition: transform var(--transition-normal);
}

.modal.active .modal-content {
  transform: translateY(0);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--bg-tertiary);
}

.modal-header h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--text-primary);
}

.modal-close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 1.5rem;
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.modal-body {
  padding: 24px;
}

/* Settings Modal */
.setting-group {
  margin-bottom: 24px;
}

.setting-group:last-child {
  margin-bottom: 0;
}

.setting-group h3 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

.setting-group .toggle-option {
  padding: 12px 0;
  border-bottom: 1px solid var(--bg-tertiary);
}

.about-text {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 12px;
}

.version {
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* Premium Modal */
.premium-modal-content {
  max-width: 550px;
}

.premium-features h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.feature-list {
  list-style: none;
  margin-bottom: 24px;
}

.feature-list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--bg-tertiary);
  color: var(--text-secondary);
}

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

.price-card {
  padding: 16px;
  background: var(--bg-secondary);
  border-radius: var(--border-radius);
  text-align: center;
  border: 2px solid transparent;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.price-card:hover {
  border-color: var(--primary);
}

.price-card.featured {
  border-color: var(--premium-gold);
  background: linear-gradient(135deg, var(--bg-secondary), rgba(255, 215, 0, 0.1));
  position: relative;
}

.best-value {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--premium-gradient);
  color: var(--text-primary);
  padding: 4px 12px;
  border-radius: 10px;
  font-size: 0.7rem;
  font-weight: 600;
}

.price-card h4 {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.price {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-primary);
}

.price span {
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--text-muted);
}

.savings {
  font-size: 0.8rem;
  color: var(--success);
  margin-top: 4px;
}

.btn-upgrade {
  width: 100%;
  padding: 16px;
  background: var(--premium-gradient);
  color: var(--text-primary);
  font-size: 1.1rem;
  font-weight: 600;
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
}

.btn-upgrade:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 215, 0, 0.4);
}

.trial-note {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 12px;
}

/* ═══════════════════════════════════════════════════════════════════════════
   TOUCH START OVERLAY
   ═══════════════════════════════════════════════════════════════════════════ */

.touch-start-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9998;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.touch-start-overlay.active {
  opacity: 1;
  visibility: visible;
}

.touch-start-content {
  text-align: center;
  color: white;
}

.touch-icon {
  font-size: 4rem;
  margin-bottom: 16px;
  animation: bounce 1s ease infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.touch-start-content p {
  font-size: 1.2rem;
}

/* ═══════════════════════════════════════════════════════════════════════════
   RESPONSIVE DESIGN
   ═══════════════════════════════════════════════════════════════════════════ */

@media (max-width: 768px) {
  .header-content {
    padding: 0 16px;
  }
  
  .main {
    padding: 16px;
  }
  
  .taal-grid {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 8px;
  }
  
  .taal-card {
    padding: 12px;
  }
  
  .beat-circle-container {
    width: 260px;
    height: 260px;
  }
  
  .beat-marker {
    width: 36px;
    height: 36px;
  }
  
  .beat-marker-number {
    font-size: 0.65rem;
  }
  
  .beat-marker-bol {
    font-size: 0.55rem;
  }
  
  .tempo-input {
    font-size: 2.5rem;
  }
  
  .pricing-options {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  
  .premium-text {
    display: none;
  }
}

@media (max-width: 480px) {
  .logo-english {
    display: none;
  }
  
  .taal-name {
    font-size: 2rem;
  }
  
  .taal-name-hindi {
    font-size: 1.4rem;
  }
  
  .beat-circle-container {
    width: 220px;
    height: 220px;
  }
  
  .beat-marker {
    width: 30px;
    height: 30px;
  }
  
  .beat-circle-inner {
    width: 80px;
    height: 80px;
  }
  
  .current-beat-number {
    font-size: 1.8rem;
  }
  
  .current-bol {
    font-size: 1.1rem;
  }
  
  .bol-box {
    min-width: 40px;
    padding: 8px 6px;
  }
  
  .layakari-buttons {
    justify-content: center;
  }
  
  .category-tab {
    padding: 6px 12px;
    font-size: 0.8rem;
  }
}

/* ═══════════════════════════════════════════════════════════════════════════
   UTILITY CLASSES
   ═══════════════════════════════════════════════════════════════════════════ */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.hidden {
  display: none !important;
}

.no-scroll {
  overflow: hidden;
}

/* ═══════════════════════════════════════════════════════════════════════════
   AUDIO MODE TOGGLE & LOOP VARIATIONS
   ═══════════════════════════════════════════════════════════════════════════ */

/* Audio Mode Buttons */
.audio-mode-control {
  margin-top: 12px;
  padding: 0 4px;
}

.audio-mode-buttons {
  display: flex;
  gap: 8px;
  margin-top: 6px;
}

.mode-btn {
  flex: 1;
  padding: 8px 16px;
  border: 2px solid var(--border, #D4A574);
  border-radius: 8px;
  background: var(--bg-card, #FFFFFF);
  color: var(--text-primary, #2C1810);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.mode-btn:hover:not(:disabled) {
  background: var(--primary-light, #E8C9A8);
}

.mode-btn.active {
  background: var(--primary, #D4A574);
  color: white;
  border-color: var(--primary-dark, #B8956A);
  font-weight: 600;
}

.mode-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.loop-variation-control {
  margin-top: 12px;
  padding: 0 4px;
}

.variation-select {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border, #D4A574);
  border-radius: 8px;
  background: var(--bg-card, #FFFFFF);
  color: var(--text-primary, #2C1810);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.85rem;
  cursor: pointer;
  transition: border-color 0.2s;
}

.variation-select:focus {
  outline: none;
  border-color: #D4A574;
  box-shadow: 0 0 0 3px rgba(212, 165, 116, 0.2);
}

/* Toast notification */
.toast-notification {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: #2C1810;
  color: #FFF8F0;
  padding: 12px 24px;
  border-radius: 12px;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9rem;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  z-index: 10000;
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  max-width: 90vw;
  text-align: center;
}

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