:root {
  --bg-primary: #09090b;
  --bg-secondary: #18181b;
  --text-primary: #f4f4f5;
  --text-muted: #a1a1aa;
  --accent-color: #ffffff;
  --card-bg: rgba(24, 24, 27, 0.65);
  --border-color: rgba(255, 255, 255, 0.1);
  --dim-factor: 1;
  --digital-font-scale: 1;
}

[data-color-scheme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #e2e8f0;
  --text-primary: #0f172a;
  --text-muted: #64748b;
  --card-bg: rgba(255, 255, 255, 0.85);
  --border-color: rgba(0, 0, 0, 0.12);
}

[data-theme="midnight"] {
  --bg-primary: #09090b;
  --bg-secondary: #18181b;
  --text-primary: #f4f4f5;
  --text-muted: #a1a1aa;
  --card-bg: rgba(24, 24, 27, 0.65);
  --border-color: rgba(255, 255, 255, 0.1);
}

[data-theme="graphite"] {
  --bg-primary: #18181b;
  --bg-secondary: #27272a;
  --text-primary: #f4f4f5;
  --text-muted: #a1a1aa;
  --card-bg: rgba(39, 39, 42, 0.65);
  --border-color: rgba(255, 255, 255, 0.12);
}

[data-theme="oled"] {
  --bg-primary: #000000;
  --bg-secondary: #0a0a0a;
  --text-primary: #ffffff;
  --text-muted: #71717a;
  --card-bg: rgba(18, 18, 18, 0.8);
  --border-color: rgba(255, 255, 255, 0.08);
}

[data-theme="arctic"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --text-primary: #0f172a;
  --text-muted: #64748b;
  --card-bg: rgba(255, 255, 255, 0.75);
  --border-color: rgba(0, 0, 0, 0.08);
}

[data-theme="aurora"] {
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --text-primary: #e6edf3;
  --text-muted: #8b949e;
  --card-bg: rgba(22, 27, 34, 0.7);
  --border-color: rgba(56, 139, 253, 0.2);
}

[data-theme="minimal-white"] {
  --bg-primary: #ffffff;
  --bg-secondary: #f4f4f5;
  --text-primary: #09090b;
  --text-muted: #71717a;
  --card-bg: rgba(244, 244, 245, 0.8);
  --border-color: rgba(0, 0, 0, 0.1);
}

[data-accent="white"] { --accent-color: #ffffff; }
[data-accent="blue"] { --accent-color: #3b82f6; }
[data-accent="cyan"] { --accent-color: #06b6d4; }
[data-accent="green"] { --accent-color: #10b981; }
[data-accent="purple"] { --accent-color: #8b5cf6; }
[data-accent="orange"] { --accent-color: #f97316; }

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}

html, body {
  margin: 0;
  padding: 0;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", "Kantumruy Pro", "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.wallpaper-layer {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  z-index: 0;
  transition: opacity 0.5s ease;
}

.wallpaper-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1;
}

#digitalClockContainer {
  color: var(--accent-color);
  transition: color 0.3s ease;
}

[data-font="system"] #digitalClockContainer, [data-font="system"] .time-display-huge, [data-font="system"] .time-display-medium { font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", sans-serif; }
[data-font="orbitron"] #digitalClockContainer, [data-font="orbitron"] .time-display-huge, [data-font="orbitron"] .time-display-medium { font-family: 'Orbitron', sans-serif !important; }
[data-font="share-tech"] #digitalClockContainer, [data-font="share-tech"] .time-display-huge, [data-font="share-tech"] .time-display-medium { font-family: 'Share Tech Mono', monospace !important; }
[data-font="vt323"] #digitalClockContainer, [data-font="vt323"] .time-display-huge, [data-font="vt323"] .time-display-medium { font-family: 'VT323', monospace !important; }
[data-font="inter"] #digitalClockContainer, [data-font="inter"] .time-display-huge, [data-font="inter"] .time-display-medium { font-family: 'Inter', sans-serif !important; }
[data-font="kantumruy"] #digitalClockContainer, [data-font="kantumruy"] .time-display-huge, [data-font="kantumruy"] .time-display-medium { font-family: 'Kantumruy Pro', sans-serif !important; }
[data-font="monospace"] #digitalClockContainer, [data-font="monospace"] .time-display-huge, [data-font="monospace"] .time-display-medium { font-family: 'Courier New', monospace !important; }

.tabular-nums {
  font-variant-numeric: tabular-nums;
}

.font-style-minimal,
.font-style-minimal .time-display-huge,
.font-style-minimal .time-display-medium {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-weight: 200 !important;
  letter-spacing: 0.04em;
}

.font-style-modern,
.font-style-modern .time-display-huge,
.font-style-modern .time-display-medium {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", sans-serif;
  font-weight: 600 !important;
  letter-spacing: -0.03em;
}

.font-style-thin,
.font-style-thin .time-display-huge,
.font-style-thin .time-display-medium {
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;
  font-weight: 100 !important;
  letter-spacing: 0.1em;
}

.font-style-bold,
.font-style-bold .time-display-huge,
.font-style-bold .time-display-medium {
  font-family: -apple-system, BlinkMacSystemFont, "Arial Black", sans-serif;
  font-weight: 900 !important;
  letter-spacing: -0.05em;
}

.font-style-matrix {
  font-family: 'Share Tech Mono', 'Courier New', Courier, monospace;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: #00ff41 !important;
  text-shadow: 0 0 8px rgba(0, 255, 65, 0.9), 0 0 18px rgba(0, 255, 65, 0.6), 0 0 30px rgba(0, 255, 65, 0.3);
  position: relative;
  padding: 12px 24px;
  border-radius: 12px;
  background: rgba(0, 20, 5, 0.75);
  border: 1px solid rgba(0, 255, 65, 0.4);
  box-shadow: 0 0 20px rgba(0, 255, 65, 0.25), inset 0 0 20px rgba(0, 255, 65, 0.15);
  animation: matrixGlow 4s infinite alternate;
}

.font-style-matrix .time-display-huge,
.font-style-matrix .time-display-medium {
  font-family: 'Share Tech Mono', 'Courier New', Courier, monospace;
  font-weight: 700 !important;
  color: #00ff41 !important;
  text-shadow: 0 0 10px rgba(0, 255, 65, 0.9), 0 0 22px rgba(0, 255, 65, 0.6);
}

@keyframes matrixGlow {
  0% {
    box-shadow: 0 0 15px rgba(0, 255, 65, 0.2), inset 0 0 15px rgba(0, 255, 65, 0.1);
  }
  100% {
    box-shadow: 0 0 25px rgba(0, 255, 65, 0.4), inset 0 0 25px rgba(0, 255, 65, 0.25);
  }
}

.app-container {
  position: relative;
  z-index: 2;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(8px, 2vh, 16px) clamp(12px, 3vw, 24px);
  padding-top: calc(clamp(8px, 2vh, 16px) + env(safe-area-inset-top));
  padding-bottom: calc(clamp(8px, 2vh, 16px) + env(safe-area-inset-bottom));
  padding-left: calc(clamp(12px, 3vw, 24px) + env(safe-area-inset-left));
  padding-right: calc(clamp(12px, 3vw, 24px) + env(safe-area-inset-right));
  transition: opacity 0.3s ease, filter 0.3s ease;
  filter: brightness(var(--dim-factor));
}

.time-display-huge {
  font-size: calc(clamp(3.5rem, 14vw, 7.5rem) * var(--digital-font-scale));
  line-height: 1;
}

.time-display-medium {
  font-size: calc(clamp(2.5rem, 10vw, 5rem) * var(--digital-font-scale));
  line-height: 1;
}

.controls-overlay {
  transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.4s ease;
}

.controls-overlay.hidden-controls {
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
}

.glass-panel {
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
}

.portrait-warning {
  display: none !important;
}

body.is-portrait .portrait-warning {
  display: flex !important;
}

body.is-portrait .app-container {
  display: none !important;
}

body.is-fullscreen-mode .app-container {
  padding-top: 4px !important;
  padding-bottom: 4px !important;
}

body.is-fullscreen-mode header {
  opacity: 0;
  pointer-events: none;
}

body.is-fullscreen-mode #digitalClockContainer {
  transform: scale(1.12);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

body.ios-fullscreen .app-container {
  padding-top: clamp(4px, 1vh, 8px);
  padding-bottom: clamp(4px, 1vh, 8px);
}

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