:root {
  --color-canvas: #ffffff;
  --color-canvas-soft: #f4f4f5;
  --color-canvas-soft-2: #e4e4e7;
  --color-canvas-subtle: #d4d4d8;
  --color-ink: #18181b;
  --color-body: #52525b;
  --color-mute: #71717a;
  --color-hairline: #e4e4e7;
  --color-hairline-strong: #d4d4d8;
  --color-primary: #18181b;
  --color-on-primary: #ffffff;
  --color-primary-hover: #27272a;
  --color-accent: #0070f3;
  --color-accent-soft: rgba(0, 112, 243, 0.1);
  --color-warning: #f5a623;
  --color-success: #10b981;
  
  --ruler-bg: #ffffff;
  --ruler-ticks: #52525b;
  --ruler-text: #18181b;
  --ruler-border: #e4e4e7;
  --ruler-accent: #0070f3;
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-pill: 9999px;
  
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

html.dark {
  --color-canvas: #0a0a0a;
  --color-canvas-soft: #121212;
  --color-canvas-soft-2: #1e1e1e;
  --color-canvas-subtle: #2a2a2a;
  --color-ink: #ededed;
  --color-body: #a1a1aa;
  --color-mute: #71717a;
  --color-hairline: #27272a;
  --color-hairline-strong: #3f3f46;
  --color-primary: #ededed;
  --color-on-primary: #0a0a0a;
  --color-primary-hover: #ffffff;
  --color-accent: #0070f3;
  --color-accent-soft: rgba(0, 112, 243, 0.15);
  --color-warning: #f5a623;
  --color-success: #10b981;
  
  --ruler-bg: #0a0a0a;
  --ruler-ticks: #71717a;
  --ruler-text: #ededed;
  --ruler-border: #27272a;
  --ruler-accent: #0070f3;
}

/* Blueprint Theme */
html.theme-blueprint {
  --color-canvas: #0a192f;
  --color-canvas-soft: #0f2544;
  --color-canvas-soft-2: #16335c;
  --color-canvas-subtle: #1e4578;
  --color-ink: #e6f1ff;
  --color-body: #8892b0;
  --color-mute: #5a698c;
  --color-hairline: #1e3d6b;
  --color-hairline-strong: #2b5695;
  --color-primary: #64ffda;
  --color-on-primary: #0a192f;
  --color-accent: #64ffda;
  
  --ruler-bg: #0c203d;
  --ruler-ticks: #64ffda;
  --ruler-text: #e6f1ff;
  --ruler-border: #1e4578;
  --ruler-accent: #ffd166;
}

/* Steel Theme */
html.theme-steel {
  --color-canvas: #1e2229;
  --color-canvas-soft: #282c37;
  --color-canvas-soft-2: #323846;
  --color-canvas-subtle: #41495a;
  --color-ink: #f0f2f5;
  --color-body: #a0a6b5;
  --color-mute: #707788;
  --color-hairline: #383e4e;
  --color-hairline-strong: #4f576d;
  --color-primary: #f59e0b;
  --color-on-primary: #111827;
  --color-accent: #f59e0b;
  
  --ruler-bg: #2d3340;
  --ruler-ticks: #cbd5e1;
  --ruler-text: #f8fafc;
  --ruler-border: #475569;
  --ruler-accent: #fbbf24;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-canvas);
  color: var(--color-ink);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Scrollbars */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--color-canvas-soft);
}
::-webkit-scrollbar-thumb {
  background: var(--color-hairline-strong);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-mute);
}

/* Utilities */
.hidden { display: none !important; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 4px; }
.gap-1-5 { gap: 6px; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.font-mono { font-family: var(--font-mono); }