:root {
  color-scheme: light dark;
  --color-background: #f7f7fb;
  --color-surface: #ffffff;
  --color-surface-raised: #ffffff;
  --color-text: #18171d;
  --color-text-muted: #696674;
  --color-border: #e5e3eb;
  --color-accent: #5d43d6;
  --color-accent-contrast: #ffffff;
  --color-accent-soft: #ebe7ff;
  --color-focus: #3d7eff;
  --color-danger: #b3261e;
  --shadow-raised: 0 14px 40px rgb(35 27 67 / 14%);
  --radius-small: 10px;
  --radius-medium: 16px;
  --radius-large: 24px;
  --content-width: 760px;
  --desktop-width: 1120px;
  --nav-height: 76px;
  --touch-target: 44px;
  --motion-fast: 150ms;
  --motion-spinner: 800ms;
  --easing-standard: ease;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
}

:root[data-theme="dark"] {
  --color-background: #101016;
  --color-surface: #191920;
  --color-surface-raised: #22222b;
  --color-text: #f4f2f8;
  --color-text-muted: #aaa6b5;
  --color-border: #34323d;
  --color-accent: #9c88ff;
  --color-accent-contrast: #17121f;
  --color-accent-soft: #2c2545;
  --color-focus: #8ab4ff;
  --color-danger: #ff8b84;
  --shadow-raised: 0 14px 40px rgb(0 0 0 / 38%);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-background: #101016;
    --color-surface: #191920;
    --color-surface-raised: #22222b;
    --color-text: #f4f2f8;
    --color-text-muted: #aaa6b5;
    --color-border: #34323d;
    --color-accent: #9c88ff;
    --color-accent-contrast: #17121f;
    --color-accent-soft: #2c2545;
    --color-focus: #8ab4ff;
    --color-danger: #ff8b84;
    --shadow-raised: 0 14px 40px rgb(0 0 0 / 38%);
  }
}