:root {
  /* Background layers */
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary: #21262d;
  --bg-overlay: rgba(0, 0, 0, 0.6);
  --bg-glow-1: rgba(88, 166, 255, 0.18);
  --bg-glow-2: rgba(240, 136, 62, 0.18);
  --bg-glow-3: rgba(63, 185, 80, 0.12);
  --panel-sheen: rgba(255, 255, 255, 0.02);
  --panel-sheen-fade: rgba(255, 255, 255, 0);
  --app-background-image: none;
  --app-background-overlay-layer: none;

  /* Surface / panels */
  --surface: #1c2128;
  --surface-hover: #262c36;
  --surface-active: #2d333b;
  --surface-border: #30363d;
  --surface-elevated: rgba(28, 33, 40, 0.88);
  --floating-surface: rgba(24, 29, 35, 0.99);
  --floating-surface-hover: rgba(32, 38, 45, 0.99);
  --floating-surface-border: rgba(255, 255, 255, 0.08);
  --floating-surface-border-strong: rgba(255, 255, 255, 0.12);
  --surface-ghost: rgba(255, 255, 255, 0.05);
  --surface-ghost-hover: rgba(255, 255, 255, 0.06);
  --surface-ghost-active: rgba(255, 255, 255, 0.08);
  --surface-ghost-muted: rgba(255, 255, 255, 0.025);
  --pill-border: #3a4048;
  --pill-background-hover: #21262d;
  --pill-border-hover: #505863;
  --tooltip-surface: rgba(28, 33, 40, 0.96);
  --mobile-tabs-surface: rgba(13, 17, 23, 0.86);
  --new-best-popup-surface: rgba(13, 17, 23, 0.94);
  --divider-subtle: rgba(255, 255, 255, 0.08);

  /* Text */
  --text-primary: #e6edf3;
  --scramble-top-text: #e6edf3;
  --text-secondary: #8b949e;
  --text-tertiary: #6e7681;
  --text-muted: #484f58;

  /* Accent */
  --accent: #58a6ff;
  --accent-hover: #79c0ff;
  --accent-subtle: rgba(56, 139, 253, 0.15);

  /* Timer states */
  --timer-idle: #e6edf3;
  --timer-holding: #f85149;
  --timer-ready: #3fb950;
  --timer-running: #e6edf3;

  /* Statistics */
  --stat-best: #3fb950;
  --stat-ao5: #f0883e;
  --distribution-median: #f85149;
  --danger-penalty: #f85149;
  --stat-ao12: #a371f7;
  --stat-ao100: #58a6ff;
  --new-best-popup-color: #3fb950;
  --stat-new-best: #fe2b2b;
  --danger: var(--danger-penalty);
  --success: var(--stat-best);
  --new-best-popup-border: rgba(63, 185, 80, 0.45);
  --danger-bg-soft: rgba(248, 81, 73, 0.1);
  --danger-bg-strong: rgba(248, 81, 73, 0.15);
  --danger-bg-hover: rgba(248, 81, 73, 0.2);
  --danger-border: rgba(248, 81, 73, 0.5);
  --danger-border-strong: rgba(248, 81, 73, 0.6);

  /* Graph */
  --graph-color-time: #8b949e;
  --graph-color-line1: #ff2020;
  --graph-color-line2: #2b91ff;
  --graph-color-line3: #a371f7;
  --graph-color-ao5: #ff2020;
  --graph-color-ao12: #2b91ff;
  --graph-color-ao100: #a371f7;
  --graph-grid: #3c4552;
  --distribution-legend-bg: rgba(13, 17, 23, 0.92);
  --distribution-legend-border: rgba(255, 255, 255, 0.12);
  --distribution-selected-stroke: #79c0ff;
  --timer-delta-glow-strong: rgba(12, 17, 22, 1);
  --timer-delta-glow-soft: rgba(12, 17, 22, 0.92);

  /* Cube face colors */
  --cube-white: #FFF;
  --cube-yellow: #FFFF05;
  --cube-red: #F00;
  --cube-orange: #FFA503;
  --cube-blue: #00F;
  --cube-green: #33CD32;
  --cube-bg: #333333;
  --preview-cube-white: #ffffff;
  --preview-cube-red: #ff0000;
  --preview-cube-green: #33cd32;
  --preview-cube-yellow: #ffff05;
  --preview-cube-orange: #ffa503;
  --preview-cube-blue: #0000ff;
  --preview-cube-outline: rgba(0, 0, 0, 0.4);
  --preview-skewb-white: #ffffff;
  --preview-skewb-red: #ff0000;
  --preview-skewb-green: #33cd32;
  --preview-skewb-yellow: #ffff05;
  --preview-skewb-orange: #ffa503;
  --preview-skewb-blue: #0000ff;
  --preview-skewb-outline: rgba(0, 0, 0, 0.4);
  --preview-pyraminx-yellow: #ffff05;
  --preview-pyraminx-green: #33cd32;
  --preview-pyraminx-red: #ff0000;
  --preview-pyraminx-blue: #0000ff;
  --preview-pyraminx-outline: rgba(0, 0, 0, 0.4);
  --preview-megaminx-face-1: #f8f8f5;
  --preview-megaminx-face-2: #f9c91c;
  --preview-megaminx-face-3: #fff6b4;
  --preview-megaminx-face-4: #9c9c9c;
  --preview-megaminx-face-5: #ec1111;
  --preview-megaminx-face-6: #0a7f12;
  --preview-megaminx-face-7: #74fb00;
  --preview-megaminx-face-8: #ff9136;
  --preview-megaminx-face-9: #1223c8;
  --preview-megaminx-face-10: #8a28ff;
  --preview-megaminx-face-11: #e28dee;
  --preview-megaminx-face-12: #8bd6f8;
  --preview-megaminx-outline: rgba(0, 0, 0, 0.45);
  --preview-square1-up: #ffff00;
  --preview-square1-down: #ffffff;
  --preview-square1-front: #ff0000;
  --preview-square1-back: #ff8800;
  --preview-square1-left: #0000ff;
  --preview-square1-right: #00ff00;
  --preview-square1-outline: #000000;
  --preview-clock-body: #000000;
  --preview-clock-front-face: #57c5f8;
  --preview-clock-back-face: #315f9b;
  --preview-clock-front-dial: #315f9b;
  --preview-clock-back-dial: #57c5f8;
  --preview-clock-hand-fill: #ffd700;
  --preview-clock-hand-stroke: #ff0000;
  --preview-clock-pin-up: #ffeb3b;
  --preview-clock-pin-down: #7b4c20;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 24px;
  --space-2xl: 32px;
  --space-3xl: 48px;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Consolas', monospace;
  --font-timer: 'JetBrains Mono', monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.8125rem;
  --text-base: 0.875rem;
  --text-lg: 1rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  --text-timer: clamp(4rem, 12vw, 8rem);
  --text-timer-small: clamp(1.5rem, 4vw, 2.5rem);

  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 16px;
  --radius-2xl: 24px;

  /* Transitions */
  --transition-fast: 100ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-card: 0 20px 50px rgba(0, 0, 0, 0.35);

  /* Layout */
  --sidebar-width: 300px;
  --right-panel-width: 300px;
  --desktop-panel-scale: 1;
  --header-height: 48px;
  --scramble-bar-height: 56px;
  --mobile-tab-height: 62px;
  --safe-area-top: env(safe-area-inset-top, 0px);
  --safe-area-bottom: env(safe-area-inset-bottom, 0px);
}

body.no-animations,
body.no-animations * {
  transition: none !important;
  animation: none !important;
}

body.high-contrast-mode {
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.52);
  --shadow-card: 0 20px 50px rgba(0, 0, 0, 0.52);
}

/* ── Compact panels at low window heights ── */
/* @media (max-height: 700px) and (min-width: 1101px) {
  :root {
    --right-panel-width: 240px;
  }
}

@media (max-height: 650px) and (min-width: 1101px) {
  :root {
    --right-panel-width: 200px;
  }
} */