:root {
  /* Surface & Canvas Tokens */
  --color-canvas: #08090c;
  --color-surface-1: #101217;
  --color-surface-2: #171a22;
  --color-surface-3: #202430;
  --color-surface-elevated: #282e3d;
  --color-surface-interactive: #1d212b;

  /* Typography & Neutral Colors */
  --color-text-primary: #f8fafc;
  --color-text-secondary: #94a3b8;
  --color-text-muted: #64748b;
  --color-text-subtle: #475569;

  /* Brand & Accent Tokens - NO GRADIENTS */
  --color-brand: #38bdf8;
  --color-brand-hover: #0ea5e9;
  --color-brand-active: #0284c7;
  --color-brand-surface: rgba(56, 189, 248, 0.12);
  --color-brand-text: #7dd3fc;

  /* Status Colors */
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  --color-live: #22c55e;
  --color-focus: #38bdf8;

  /* Spacing Scale */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;

  /* Radius Scale */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-pill: 9999px;

  /* Fluid Typography Scale */
  --font-family-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-family-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  --font-size-xs: clamp(0.7rem, 0.68rem + 0.1vw, 0.75rem);
  --font-size-sm: clamp(0.8rem, 0.77rem + 0.15vw, 0.875rem);
  --font-size-base: clamp(0.92rem, 0.88rem + 0.2vw, 1rem);
  --font-size-md: clamp(1.05rem, 1rem + 0.25vw, 1.15rem);
  --font-size-lg: clamp(1.2rem, 1.12rem + 0.4vw, 1.35rem);
  --font-size-xl: clamp(1.4rem, 1.25rem + 0.7vw, 1.75rem);
  --font-size-2xl: clamp(1.75rem, 1.5rem + 1.2vw, 2.35rem);
  --font-size-hero: clamp(2.2rem, 1.8rem + 2vw, 3.25rem);

  --line-height-tight: 1.15;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.7;

  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Motion Scale */
  --motion-fast: 140ms;
  --motion-normal: 240ms;
  --motion-slow: 380ms;

  --ease-standard: cubic-bezier(0.2, 0, 0, 1);
  --ease-emphasized: cubic-bezier(0.3, 0, 0.2, 1);
  --ease-enter: cubic-bezier(0, 0, 0.2, 1);
  --ease-exit: cubic-bezier(0.4, 0, 1, 1);

  /* Elevation Shadows (Soft neutral depth without colored glow) */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.65);

  /* Containers */
  --container-max: 1320px;
  --header-height: 64px;
  --player-height-desktop: 76px;
  --player-height-mobile: 68px;

  /* Z-Index Hierarchy */
  --z-base: 1;
  --z-sticky: 10;
  --z-header: 100;
  --z-player: 200;
  --z-drawer: 300;
  --z-modal: 400;
  --z-toast: 500;
}

@media (prefers-reduced-motion: reduce) {
  :root {
    --motion-fast: 0ms;
    --motion-normal: 0ms;
    --motion-slow: 0ms;
  }
}