:root {
  color-scheme: dark;

  --color-paper: #101820;
  --color-paper-2: #24313d;
  --color-surface: #15212b;
  --color-surface-raised: #1a2631;
  --color-ink: #edf2f6;
  --color-ink-2: #b9c8d3;
  --color-muted: #aabac7;
  --color-rule: #32414e;
  --color-rule-strong: #607484;
  --color-accent: #ffd09b;
  --color-accent-hover: #ffe1be;
  --color-accent-soft: #342c24;
  --color-accent-ink: #101820;
  --color-focus: #ffd09b;
  --color-success: #8cd5ae;
  --color-success-soft: #19362b;
  --color-error: #ffaaa0;
  --color-error-soft: #3c2425;
  --color-warning: #f1c477;
  --color-warning-soft: #362d1c;

  --surface-soft: #24313d;

  --font-body: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  --space-3xs: 4px;
  --space-2xs: 8px;
  --space-xs: 12px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 32px;
  --space-xl: 48px;
  --space-2xl: 64px;
  --space-3xl: 96px;

  --radius-control: 10px;
  --radius-card: 18px;
  --radius-panel: 24px;
  --radius-pill: 999px;

  --shadow-raised: 0 12px 36px rgba(32, 33, 36, .07);
  --shadow-popover: 0 16px 44px rgba(32, 33, 36, .13);

  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --dur-micro: 140ms;
  --dur-short: 220ms;

  --content-width: 1120px;
  --reading-width: 820px;
  --banner-height: 104px;
  --z-sticky: 20;
  --z-sticky-nav: 30;
  --z-popover: 60;
}