/* CRITICAL: Mobile viewport fixes - LOAD FIRST */
html {
  box-sizing: border-box;
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
}

*, *::before, *::after {
  box-sizing: inherit;
}

body {
  margin: 0;
  padding: 0;
  min-width: 320px;
  width: 100%;
  overflow-x: hidden;
}

.record-button-ring {
  pointer-events: none;
}

.record-button-ring::after {
  content: '';
  position: absolute;
  inset: 14%;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.4);
  opacity: 0.6;
}

/* CSS Variables for theming - ULTRA FUTURISTIC DESIGN */
:root {
  /* Vibrant Background Colors */
  --bg-primary: radial-gradient(circle at 20% 20%, #c9d6ff 0%, #9faeed 18%, #8468d7 45%, #6434a0 100%);
  --bg-secondary: rgba(255, 255, 255, 0.92);
  --bg-card: rgba(255, 255, 255, 0.82);
  
  /* Animated Gradients */
  --bg-gradient: linear-gradient(135deg, #6a8bff 0%, #8f7bf9 45%, #f093fb 100%);
  --bg-gradient-animated: linear-gradient(270deg, #6a8bff, #8f7bf9, #f093fb, #52cffe);
  --bg-gradient-subtle: linear-gradient(135deg, rgba(106, 139, 255, 0.14) 0%, rgba(143, 123, 249, 0.14) 100%);
  
  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.2);
  --glass-border: rgba(255, 255, 255, 0.4);
  --glass-shadow: 0 24px 60px rgba(114, 128, 255, 0.25);
  
  /* Text Colors - tuned for contrast and hierarchy */
  --text-primary: #171837;
  --text-secondary: #3c3f72;
  --text-tertiary: #6a6f9c;
  --text-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  
  /* Border Colors */
  --border-color: rgba(255, 255, 255, 0.3);
  --border-hover: rgba(255, 255, 255, 0.5);
  --border-glow: rgba(102, 126, 234, 0.5);
  
  /* Accent Colors - More Vibrant */
  --accent-color: #667eea;
  --accent-hover: #764ba2;
  --accent-light: rgba(102, 126, 234, 0.1);
  --accent-subtle: rgba(102, 126, 234, 0.15);
  --accent-neon: #00d4ff;
  
  /* Status Colors - Enhanced */
  --danger-color: #ff006e;
  --danger-hover: #e00063;
  --success-color: #00f5a0;
  --success-light: rgba(0, 245, 160, 0.1);
  --warning-color: #ffd60a;
  --info-color: #00d4ff;
  
  /* Advanced Shadows with Glow */
  --shadow-sm: 0 4px 16px rgba(90, 103, 216, 0.12);
  --shadow-md: 0 12px 32px rgba(90, 103, 216, 0.18);
  --shadow-lg: 0 20px 48px rgba(90, 103, 216, 0.22);
  --shadow-xl: 0 32px 64px rgba(90, 103, 216, 0.28);
  --shadow-premium: 0 44px 90px rgba(90, 103, 216, 0.32);
  --shadow-neon: 0 0 30px rgba(114, 128, 255, 0.35), 0 0 60px rgba(140, 118, 255, 0.25);
  
  /* Border Radius - More Dramatic */
  --radius-sm: 16px;
  --radius-md: 24px;
  --radius-lg: 32px;
  --radius-xl: 48px;
  --radius-full: 9999px;
  
  /* Smooth Transitions */
  --transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-fast: all 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-bounce: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

[data-theme="dark"] {
  /* Dark Mode - Cyberpunk Vibes */
  --bg-primary: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
  --bg-secondary: rgba(22, 24, 28, 0.95);
  --bg-card: rgba(30, 33, 41, 0.85);
  
  --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
  --bg-gradient-animated: linear-gradient(270deg, #667eea, #764ba2, #f093fb, #4facfe);
  --bg-gradient-subtle: linear-gradient(135deg, rgba(102, 126, 234, 0.2) 0%, rgba(118, 75, 162, 0.2) 100%);
  
  --glass-bg: rgba(30, 33, 41, 0.3);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.7);
  
  --text-primary: #ffffff;
  --text-secondary: #b4b9c5;
  --text-tertiary: #8891a0;
  
  --border-color: rgba(255, 255, 255, 0.1);
  --border-hover: rgba(255, 255, 255, 0.2);
  
  --accent-light: rgba(102, 126, 234, 0.15);
  --accent-subtle: rgba(102, 126, 234, 0.25);
  --success-light: rgba(0, 245, 160, 0.15);
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.6);
  --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.7);
  --shadow-premium: 0 32px 96px rgba(0, 0, 0, 0.8);
  --shadow-neon: 0 0 30px rgba(102, 126, 234, 0.8), 0 0 60px rgba(118, 75, 162, 0.6);
}

/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  letter-spacing: -0.01em;
  transition: var(--transition);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  position: relative;
  overflow-x: hidden;
  background-size: 400% 400%;
  animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Animated Background Particles */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(circle at 18% 32%, rgba(118, 135, 255, 0.18) 0%, transparent 55%),
    radial-gradient(circle at 78% 74%, rgba(244, 147, 251, 0.18) 0%, transparent 52%),
    radial-gradient(circle at 40% 12%, rgba(116, 231, 255, 0.14) 0%, transparent 55%);
  pointer-events: none;
  z-index: 0;
  animation: particleFloat 20s ease-in-out infinite;
}

@keyframes particleFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(1.1); }
  66% { transform: translate(-20px, 20px) scale(0.9); }
}

/* Container */
.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 48px 32px 64px;
  position: relative;
  z-index: 1;
}

/* Header - Sleek Minimal Design */
.header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  margin-bottom: 56px;
  padding: 0;
}

.brand-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 560px;
}

.app-title {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 2.125rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  animation: textShimmer 6s ease-in-out infinite;
  color: var(--text-primary);
  position: relative;
}

.app-title-text {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.55);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.6), 0 12px 28px rgba(106, 139, 255, 0.2);
  color: var(--text-primary);
  text-shadow: 0 1px 2px rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  white-space: nowrap;
  overflow: hidden;
}

.app-title-text::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(120deg, rgba(106, 139, 255, 0.25), rgba(240, 147, 251, 0.25));
  pointer-events: none;
  opacity: 0.75;
}

.app-subtitle {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 6px 18px;
  margin-left: 48px;
  font-size: 0.96rem;
  color: var(--text-secondary);
  line-height: 1.65;
  text-wrap: balance;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.45);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.6), 0 10px 24px rgba(120, 140, 255, 0.18);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  white-space: nowrap;
  overflow: hidden;
}

.app-subtitle::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(120deg, rgba(106, 139, 255, 0.18), rgba(240, 147, 251, 0.18));
  opacity: 0.75;
  pointer-events: none;
}

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

@keyframes textShimmer {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.8; }
}

.mic-icon {
  color: var(--accent-color);
  filter: drop-shadow(0 4px 16px rgba(102, 126, 234, 0.5));
  animation: iconFloat 3s ease-in-out infinite;
}

@keyframes iconFloat {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-4px); }
}

.theme-toggle {
  background: rgba(255, 255, 255, 0.4);
  border: 1px solid transparent;
  width: 54px;
  height: 54px;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-bounce);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.theme-toggle:hover {
  background: var(--accent-color);
  border-color: transparent;
  transform: scale(1.08) rotate(160deg);
  box-shadow: var(--shadow-lg), 0 14px 32px rgba(106, 139, 255, 0.35);
  color: white;
}

[data-theme="dark"] .sun-icon {
  display: none;
}

[data-theme="light"] .moon-icon {
  display: none;
}

/* Recording Section - Premium Card Design */
.recording-section {
  margin: 0;
}

.recorder-card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: 40px 32px;
  box-shadow: var(--shadow-premium);
  text-align: center;
  border: 1px solid var(--glass-border);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transform-style: preserve-3d;
  transition: var(--transition);
}

.recorder-card:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: var(--shadow-premium), var(--shadow-neon);
  border-color: rgba(106, 139, 255, 0.45);
}

.recorder-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: var(--bg-gradient-animated);
  opacity: 0.2;
  pointer-events: none;
  animation: rotateGradient 10s linear infinite;
  background-size: 400% 400%;
}

@keyframes rotateGradient {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.visualizer-container {
  margin-bottom: 48px;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100px;
  position: relative;
  z-index: 1;
}

#visualizer {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.35);
}

.recording-info {
  margin-bottom: 32px;
  position: relative;
  z-index: 1;
}

.recording-status {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-tertiary);
  margin-bottom: 12px;
  letter-spacing: 0;
  text-transform: uppercase;
  opacity: 0.9;
}

.recording-time {
  font-size: 3.5rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  background: var(--bg-gradient);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.04em;
  line-height: 1;
  text-shadow: 0 0 60px rgba(102, 126, 234, 0.5);
  filter: drop-shadow(0 8px 28px rgba(102, 126, 234, 0.35));
  animation: textGlow 4s ease-in-out infinite;
}

@keyframes textGlow {
  0%, 100% { filter: drop-shadow(0 4px 20px rgba(102, 126, 234, 0.4)); }
  50% { filter: drop-shadow(0 4px 40px rgba(118, 75, 162, 0.6)); }
}

.record-button-shell {
  position: relative;
  width: 150px;
  height: 150px;
  margin: 0 auto 20px;
}

.record-button-ring {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-full);
  background: var(--bg-gradient-subtle);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.35);
  filter: blur(0);
  opacity: 1;
}

.record-button {
  position: relative;
  width: 150px;
  height: 150px;
  border-radius: var(--radius-full);
  border: none;
  background: var(--bg-gradient);
  color: white;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-bounce);
  box-shadow: var(--shadow-xl);
  position: relative;
  z-index: 2;
  animation: buttonPulse 3.5s ease-in-out infinite;
  background-size: 220% 220%;
}

@keyframes buttonPulse {
  0%, 100% { 
    box-shadow: var(--shadow-xl), 0 0 40px rgba(102, 126, 234, 0.5), 0 0 80px rgba(118, 75, 162, 0.3);
    transform: scale(1);
  }
  50% { 
    box-shadow: var(--shadow-xl), 0 0 60px rgba(102, 126, 234, 0.7), 0 0 120px rgba(118, 75, 162, 0.5);
    transform: scale(1.05);
  }
}

.record-button::before {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: var(--radius-full);
  padding: 6px;
  background: var(--bg-gradient-animated);
  background-size: 400% 400%;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.3s ease;
  animation: gradientShift 3s ease infinite;
}

.record-button:hover::before {
  opacity: 1;
}

.record-button:hover {
  transform: scale(1.1) translateY(-3px);
  box-shadow: var(--shadow-premium), 0 22px 44px rgba(106, 139, 255, 0.45);
  animation: none;
}

.record-button:active {
  transform: scale(1.05);
}

.record-button.recording {
  background: linear-gradient(135deg, #f4212e 0%, #dc1926 100%);
  animation: pulse-glow 2s infinite;
}

.record-hint {
  font-size: 0.9375rem;
  color: var(--text-tertiary);
  margin-top: 12px;
  max-width: 360px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

.record-button.recording:hover {
  background: linear-gradient(135deg, #dc1926 0%, #c41723 100%);
}

@keyframes pulse-glow {
  0%, 100% {
    box-shadow: var(--shadow-xl), 0 0 0 0 rgba(244, 33, 46, 0.7);
  }
  50% {
    box-shadow: var(--shadow-xl), 0 0 0 16px rgba(244, 33, 46, 0);
  }
}

@keyframes pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
  }
  50% {
    box-shadow: 0 0 0 20px rgba(239, 68, 68, 0);
  }
}

/* Upload Progress */
.upload-progress {
  margin-top: 20px;
}

.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--bg-secondary);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 10px;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-color), var(--success-color));
  transition: width 0.3s ease;
  width: 0%;
}

.progress-text {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* Error Message */
.error-message {
  margin-top: 20px;
  padding: 12px 20px;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid var(--danger-color);
  border-radius: var(--radius-sm);
  color: var(--danger-color);
  font-size: 0.875rem;
}

/* Recordings Section - Refined Header */
.layout-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.65fr) minmax(0, 1.35fr);
  gap: 32px;
}

@media (min-width: 1400px) {
  .layout-grid {
    grid-template-columns: minmax(0, 0.6fr) minmax(0, 1.4fr);
  }
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.section-header h2 {
  font-size: 1.625rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  background: var(--bg-gradient);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  position: relative;
  display: inline-block;
}

.section-header h2::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 60px;
  height: 4px;
  background: var(--bg-gradient);
  border-radius: 2px;
  box-shadow: 0 2px 8px rgba(102, 126, 234, 0.4);
}

.section-subtitle {
  margin-top: 10px;
  color: var(--text-tertiary);
  font-size: 0.95rem;
  line-height: 1.6;
}

.recordings-section {
  margin: 0;
}

.recordings-card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: 40px 36px;
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.recordings-card::before {
  content: '';
  position: absolute;
  inset: -60% -40% auto;
  height: 200%;
  background: var(--bg-gradient-animated);
  opacity: 0.08;
  pointer-events: none;
  animation: rotateGradient 12s linear infinite;
  background-size: 400% 400%;
}

.recordings-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(106, 139, 255, 0.35);
}

.refresh-button {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  width: 50px;
  height: 50px;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-bounce);
  color: var(--text-secondary);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.refresh-button::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-full);
  background: var(--bg-gradient);
  opacity: 0;
  transition: var(--transition);
}

.refresh-button:hover::before {
  opacity: 1;
}

.refresh-button:hover {
  border-color: transparent;
  color: white;
  transform: rotate(360deg) scale(1.1);
  box-shadow: var(--shadow-lg), 0 0 30px rgba(102, 126, 234, 0.5);
}

/* Recordings List - Sleek Card Design */
.recordings-list {
  display: grid;
  gap: 12px;
}

.recording-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
  box-shadow: var(--shadow-md);
  position: relative;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  overflow: hidden;
}

.recording-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 5px;
  background: var(--bg-gradient);
  border-radius: var(--radius-lg) 0 0 var(--radius-lg);
  opacity: 0;
  transition: var(--transition);
}

.recording-item::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: var(--bg-gradient-animated);
  opacity: 0;
  transition: var(--transition);
  background-size: 400% 400%;
  animation: rotateGradient 8s linear infinite;
}

.recording-item:hover::before {
  opacity: 1;
  width: 100%;
  opacity: 0.05;
}

.recording-item:hover::after {
  opacity: 0.1;
}

.recording-item:hover {
  box-shadow: var(--shadow-xl), 0 0 40px rgba(102, 126, 234, 0.3);
  transform: translateY(-4px) scale(1.02);
  border-color: var(--accent-color);
}

.recording-info-group {
  flex: 1;
  min-width: 0;
}

.recording-name {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin-bottom: 6px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.recording-meta {
  font-size: 0.85rem;
  color: var(--text-tertiary);
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  font-variant-numeric: tabular-nums;
}

.recording-actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.icon-button {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-bounce);
  color: var(--text-secondary);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.icon-button::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-full);
  background: var(--bg-gradient);
  opacity: 0;
  transition: var(--transition);
  z-index: -1;
}

.icon-button:hover {
  transform: scale(1.15) translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.icon-button.play-btn:hover {
  box-shadow: 0 8px 24px rgba(102, 126, 234, 0.4);
}

.icon-button.play-btn:hover::before {
  background: var(--accent-color);
  opacity: 1;
}

.icon-button.play-btn:hover {
  color: white;
}

.icon-button.share-btn:hover {
  box-shadow: 0 8px 24px rgba(0, 245, 160, 0.4);
}

.icon-button.share-btn:hover::before {
  background: var(--success-color);
  opacity: 1;
}

.icon-button.share-btn:hover {
  color: white;
}

.icon-button.delete-btn:hover {
  box-shadow: 0 8px 24px rgba(255, 0, 110, 0.4);
}

.icon-button.delete-btn:hover::before {
  background: var(--danger-color);
  opacity: 1;
}

.icon-button.delete-btn:hover {
  color: white;
}

/* Loading Spinner */
.loading-spinner {
  text-align: center;
  padding: 80px 20px;
}

.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--border-color);
  border-top-color: var(--accent-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 20px;
  box-shadow: 0 12px 32px rgba(106, 139, 255, 0.25);
}

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

.loading-spinner p {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 60px 20px;
}

.empty-state svg {
  color: var(--text-secondary);
  margin-bottom: 20px;
  opacity: 0.5;
}

.empty-state p {
  color: var(--text-secondary);
  font-size: 1.125rem;
  margin-bottom: 8px;
}

.empty-state-subtitle {
  font-size: 0.875rem !important;
  opacity: 0.7;
}

/* Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
  from {
    opacity: 0;
    backdrop-filter: blur(0px);
  }
  to {
    opacity: 1;
    backdrop-filter: blur(20px);
  }
}

.modal-content {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: 40px;
  max-width: 700px;
  width: 100%;
  box-shadow: var(--shadow-premium), var(--shadow-neon);
  border: 2px solid var(--glass-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  animation: modalSlideIn 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  position: relative;
  overflow: hidden;
}

@keyframes modalSlideIn {
  from {
    transform: translateY(50px) scale(0.9);
    opacity: 0;
  }
  to {
    transform: translateY(0) scale(1);
    opacity: 1;
  }
}

.modal-content::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: var(--bg-gradient-animated);
  opacity: 0.05;
  pointer-events: none;
  animation: rotateGradient 15s linear infinite;
  background-size: 400% 400%;
}

.modal-small {
  max-width: 400px;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.modal-header h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}

.close-button {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: all 0.3s ease;
  flex-shrink: 0;
}

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

/* Player */
.player-container {
  padding: 20px 0;
}

#waveform {
  width: 100%;
  height: 100px;
  margin-bottom: 20px;
  border-radius: var(--radius-sm);
  background: var(--bg-secondary);
}

.player-controls {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.player-button {
  background: var(--accent-color);
  border: none;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  transition: var(--transition-bounce);
  box-shadow: var(--shadow-md);
  margin: 0 auto;
}

.player-button:hover {
  background: var(--accent-hover);
  transform: scale(1.05);
}

.time-display {
  text-align: center;
  font-size: 1rem;
  font-variant-numeric: tabular-nums;
  color: var(--text-secondary);
}

.seek-bar {
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--bg-secondary);
  outline: none;
  -webkit-appearance: none;
}

.seek-bar::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent-color);
  cursor: pointer;
  transition: all 0.3s ease;
}

.seek-bar::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.seek-bar::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent-color);
  cursor: pointer;
  border: none;
  transition: all 0.3s ease;
}

.seek-bar::-moz-range-thumb:hover {
  transform: scale(1.2);
}

.player-options {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}

.player-options label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.player-options select,
.player-options input[type="range"] {
  padding: 6px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 0.875rem;
}

#volumeControl {
  width: 100px;
}

/* Modal Actions */
.modal-actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  justify-content: flex-end;
}

.button {
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.3s ease;
}

.button-secondary {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.button-secondary:hover {
  background: var(--border-color);
}

.button-danger {
  background: var(--danger-color);
  color: white;
}

.button-danger:hover {
  background: var(--danger-hover);
}

/* Toast Notification */
.toast {
  position: fixed;
  bottom: 32px;
  right: 32px;
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  padding: 20px 28px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl), var(--shadow-neon);
  z-index: 2000;
  max-width: 400px;
  animation: toastSlideIn 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  font-weight: 500;
}

@keyframes toastSlideIn {
  from {
    transform: translateX(500px) scale(0.8);
    opacity: 0;
  }
  to {
    transform: translateX(0) scale(1);
    opacity: 1;
  }
}

.toast.success {
  border-color: var(--success-color);
  background: var(--success-light);
  color: var(--success-color);
  box-shadow: var(--shadow-xl), 0 0 40px rgba(0, 245, 160, 0.3);
}

.toast.error {
  border-color: var(--danger-color);
  background: rgba(255, 0, 110, 0.1);
  color: var(--danger-color);
  box-shadow: var(--shadow-xl), 0 0 40px rgba(255, 0, 110, 0.3);
}

/* Responsive Design */
@media (max-width: 768px) {
  html {
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    overflow-x: hidden;
  }

  body {
    min-width: 320px;
    overflow-x: hidden;
    width: 100%;
  }

  .container {
    padding: 24px 20px 48px;
    max-width: 100%;
    overflow-x: hidden;
  }

  .layout-grid {
    grid-template-columns: 1fr;
    gap: 24px;
    width: 100%;
  }

  .header {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }

  .app-title {
    font-size: 1.75rem;
  }

  .app-subtitle {
    font-size: 0.95rem;
  }

  .recorder-card {
    padding: 32px 24px 40px;
  }

  .recording-time {
    font-size: 3rem;
  }

  .record-button {
    width: 132px;
    height: 132px;
  }

  .recording-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .recording-actions {
    width: 100%;
    justify-content: flex-end;
  }

  .modal-content {
    padding: 20px;
  }

  .player-options {
    flex-direction: column;
    align-items: flex-start;
  }

  #volumeControl {
    width: 100%;
  }

  .toast {
    bottom: 16px;
    right: 16px;
    left: 16px;
    max-width: none;
  }
}

@media (max-width: 480px) {
  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .recording-meta {
    flex-direction: column;
    gap: 4px;
  }

  .record-button-shell {
    width: 140px;
    height: 140px;
  }

  .record-button {
    width: 140px;
    height: 140px;
  }

  .recording-time {
    font-size: 2.6rem;
  }
}

/* Transcription Section */
.transcription-section {
  margin-top: 40px;
  padding-top: 40px;
  border-top: 1px solid var(--border-color);
  opacity: 0;
  max-height: 0;
  overflow: hidden;
  transition: all 0.5s ease;
}

.transcription-section.show {
  opacity: 1;
  max-height: 1000px;
}

.transcription-header {
  margin-bottom: 20px;
}

.transcription-header h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.005em;
}

.transcription-header svg {
  color: var(--accent-color);
}

.transcription-title {
  margin-top: 16px;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.65);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.7), 0 12px 28px rgba(106, 139, 255, 0.2);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
  font-size: 0.95rem;
  letter-spacing: -0.01em;
}

[data-theme="dark"] .transcription-title {
  background: rgba(30, 33, 41, 0.55);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.1), 0 14px 32px rgba(0, 0, 0, 0.4);
  color: var(--text-secondary);
}

.transcription-title .title-label {
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--text-tertiary);
}

.transcription-title .title-text {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.98rem;
}

[data-theme="dark"] .transcription-title .title-label {
  color: var(--text-tertiary);
}

[data-theme="dark"] .transcription-title .title-text {
  color: #ffffff;
}

.ai-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  background: var(--bg-gradient);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  box-shadow: var(--shadow-sm);
}

.transcription-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 40px 20px;
  text-align: center;
}

.transcription-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color);
  border-top-color: var(--accent-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.transcription-text {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-primary);
  white-space: pre-wrap;
  word-wrap: break-word;
  max-height: 300px;
  overflow-y: auto;
  margin-bottom: 16px;
}

.transcription-text::-webkit-scrollbar {
  width: 8px;
}

.transcription-text::-webkit-scrollbar-track {
  background: var(--bg-primary);
  border-radius: 4px;
}

.transcription-text::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

.transcription-text::-webkit-scrollbar-thumb:hover {
  background: var(--border-hover);
}

.transcription-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.transcription-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

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

.transcription-btn:hover {
  background: var(--accent-color);
  border-color: var(--accent-color);
  color: white;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* TLDR Section */
.tldr-section {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
}

.tldr-header {
  margin-bottom: 16px;
}

.tldr-header h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.005em;
}

.tldr-header svg {
  color: var(--accent-color);
}

.tldr-text {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.08) 0%, rgba(118, 75, 162, 0.08) 100%);
  border: 1px solid rgba(102, 126, 234, 0.2);
  border-radius: var(--radius-md);
  padding: 20px;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--text-primary);
  font-weight: 500;
  margin-bottom: 16px;
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.1);
}

[data-theme="dark"] .tldr-text {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.12) 0%, rgba(118, 75, 162, 0.12) 100%);
  border-color: rgba(102, 126, 234, 0.25);
}

.tldr-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus styles for keyboard navigation */
button:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

/* Search Toolbar */
.search-toolbar {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  align-items: center;
}

.search-container {
  position: relative;
  flex: 1;
}

.search-input {
  width: 100%;
  padding: 14px 48px 14px 20px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 0.9375rem;
  font-family: inherit;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.search-input:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: var(--shadow-md), 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.search-input::placeholder {
  color: var(--text-tertiary);
  opacity: 0.7;
}

.clear-search-btn {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  padding: 8px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.clear-search-btn:hover {
  background: var(--bg-card);
  color: var(--text-primary);
}

/* Collapse All Button */
.collapse-all-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
  font-family: inherit;
}

.collapse-all-btn:hover {
  background: var(--accent-color);
  border-color: var(--accent-color);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.collapse-all-btn svg {
  flex-shrink: 0;
}

/* Folder Hierarchy Styles - Compact & Visually Distinct */
.folder-item {
  margin-bottom: 2px;
}

.folder-item[data-level="year"] {
  margin-left: 0;
  margin-bottom: 6px;
}

.folder-item[data-level="month"] {
  margin-left: 0;
  margin-bottom: 4px;
}

.folder-item[data-level="week"] {
  margin-left: 0;
  margin-bottom: 3px;
}

.folder-item[data-level="day"] {
  margin-left: 0;
  margin-bottom: 2px;
}

.folder-item[data-level="day"] .recording-item {
  margin-left: 0;
  margin-top: 3px;
  margin-bottom: 6px;
}

.folder-toggle {
  width: 100%;
  text-align: left;
  padding: 8px 12px;
  background: transparent;
  border: none;
  border-left: 2px solid transparent;
  border-radius: 0;
  cursor: pointer;
  transition: all 0.2s ease;
  font-weight: 600;
  font-size: 0.8rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
  position: relative;
  overflow: hidden;
  font-family: inherit;
}

.folder-toggle:hover {
  background: rgba(102, 126, 234, 0.06);
  border-left-color: var(--accent-color);
  color: var(--text-primary);
}

.folder-toggle::before {
  display: none;
}

.folder-icon {
  font-size: 0.65rem;
  color: var(--accent-color);
  transition: transform 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 12px;
  flex-shrink: 0;
  opacity: 0.7;
}

.folder-toggle.expanded .folder-icon {
  transform: rotate(90deg);
}

.folder-toggle.collapsed .folder-icon {
  transform: rotate(0deg);
}

.folder-toggle:hover .folder-icon {
  opacity: 1;
}

.folder-label {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.recording-count {
  display: inline-flex;
  align-items: center;
  padding: 2px 7px;
  background: rgba(102, 126, 234, 0.15);
  border-radius: 10px;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--accent-color);
  margin-left: 6px;
  flex-shrink: 0;
  line-height: 1;
}

.folder-children {
  margin-top: 0;
  padding-left: 16px;
  border-left: 1px solid rgba(102, 126, 234, 0.1);
  margin-left: 6px;
  animation: slideDown 0.2s ease;
}

@keyframes slideDown {
  from {
    opacity: 0;
    max-height: 0;
  }
  to {
    opacity: 1;
    max-height: 10000px;
  }
}

/* Year folder styles - Bold and prominent */
.year-folder .folder-toggle {
  font-size: 0.85rem;
  font-weight: 800;
  padding: 10px 12px;
  color: var(--accent-color);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: rgba(102, 126, 234, 0.04);
  border-left-width: 3px;
}

.year-folder .folder-toggle:hover {
  background: rgba(102, 126, 234, 0.1);
}

.year-folder .folder-children {
  padding-left: 0;
  border-left: none;
  margin-left: 0;
  margin-top: 2px;
}

/* Month folder styles - Medium emphasis */
.month-folder .folder-toggle {
  font-size: 0.8rem;
  font-weight: 700;
  padding: 7px 12px 7px 18px;
  color: var(--text-primary);
}

.month-folder .folder-children {
  padding-left: 14px;
  margin-left: 18px;
}

/* Week folder styles - With green count badge */
.week-folder .folder-toggle {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 6px 12px 6px 14px;
  color: var(--text-secondary);
}

.week-folder .recording-count {
  background: rgba(102, 126, 234, 0.15);
  color: #667eea;
}

.week-folder .folder-children {
  padding-left: 12px;
  margin-left: 14px;
}

/* Day folder styles - Smallest, with lighter purple count badge */
.day-folder .folder-toggle {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 5px 12px 5px 10px;
  color: var(--text-secondary);
}

.day-folder .recording-count {
  background: rgba(143, 123, 249, 0.15);
  color: #8f7bf9;
}

.day-folder .folder-children {
  padding-left: 0;
  border-left: none;
  margin-left: 0;
}

/* Recordings inside folders - make them stand out */
.folder-children .recording-item {
  margin-bottom: 6px;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(102, 126, 234, 0.08);
}

.folder-children .recording-item:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(102, 126, 234, 0.15);
  transform: translateY(-2px) scale(1.005);
}

.folder-children .recording-item:last-child {
  margin-bottom: 0;
}

/* Dark mode adjustments for folders */
[data-theme="dark"] .folder-toggle {
  background: rgba(30, 33, 41, 0.4);
}

[data-theme="dark"] .folder-toggle:hover {
  background: rgba(30, 33, 41, 0.6);
}

[data-theme="dark"] .year-folder .folder-toggle {
  background: rgba(102, 126, 234, 0.1);
}

[data-theme="dark"] .year-folder .folder-toggle:hover {
  background: rgba(102, 126, 234, 0.15);
}

/* Responsive adjustments for folders */
@media (max-width: 768px) {
  .search-toolbar {
    flex-direction: column;
    gap: 10px;
  }

  .collapse-all-btn {
    width: 100%;
    justify-content: center;
  }

  .folder-children {
    padding-left: 10px;
    margin-left: 5px;
  }

  .year-folder .folder-toggle {
    font-size: 0.8rem;
    padding: 9px 10px;
  }

  .month-folder .folder-toggle {
    padding-left: 14px;
    font-size: 0.75rem;
  }

  .month-folder .folder-children {
    padding-left: 10px;
    margin-left: 14px;
  }

  .week-folder .folder-toggle {
    padding-left: 12px;
    font-size: 0.7rem;
  }

  .week-folder .folder-children {
    padding-left: 8px;
    margin-left: 12px;
  }

  .day-folder .folder-toggle {
    padding-left: 8px;
    font-size: 0.65rem;
  }

  .recording-count {
    font-size: 0.65rem;
    padding: 2px 6px;
  }

  .folder-label {
    font-size: 0.95em;
  }

  .folder-icon {
    width: 10px;
    font-size: 0.6rem;
  }
}