/* Sakura Dental Kyoto — design tokens (source of truth) */

:root {
  /* Palette — tinted slate neutrals, never pure black/gray */
  --color-primary: #1f2937;
  --color-accent: #2563eb;
  --color-accent-strong: #1d4ed8;
  --color-accent-soft: #dbeafe;
  --color-on-accent: #ffffff;
  --color-bg: #ffffff;
  --color-surface: #f8fafc;
  --color-surface-2: #eef2f7;
  --color-border: #e2e8f0;
  --color-text: #1f2937;
  --color-text-muted: #475569;
  --color-on-dark: #f1f5f9;
  --color-on-dark-muted: #c3cfdd;

  /* Typography */
  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --fs-300: 0.875rem;
  --fs-400: 1rem;
  --fs-500: 1.125rem;
  --fs-600: 1.375rem;
  --fs-700: clamp(1.5rem, 2.5vw, 1.875rem);
  --fs-800: clamp(2rem, 4vw, 2.75rem);
  --fs-900: clamp(2.4rem, 5.5vw, 3.6rem);

  /* Spacing */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6.5rem;

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-pill: 999px;

  /* Elevation + focus */
  --shadow-sm: 0 1px 2px rgba(31, 41, 55, 0.06), 0 2px 8px rgba(31, 41, 55, 0.05);
  --shadow-md: 0 4px 12px rgba(31, 41, 55, 0.08), 0 12px 32px rgba(31, 41, 55, 0.1);
  --focus-ring: 0 0 0 3px rgba(37, 99, 235, 0.4);

  /* Layout + motion */
  --max-width: 1120px;
  --measure: 62ch;
  --transition: 180ms ease;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-accent: #7cabf8;
    --color-accent-strong: #a5c6fa;
    --color-accent-soft: #1e3a6d;
    --color-on-accent: #0f1622;
    --color-bg: #121821;
    --color-surface: #1a2230;
    --color-surface-2: #223045;
    --color-border: #2d3b52;
    --color-text: #eef2f7;
    --color-text-muted: #a9b6c9;
    --color-on-dark: #f1f5f9;
    --color-on-dark-muted: #c3cfdd;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3), 0 2px 8px rgba(0, 0, 0, 0.25);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.35), 0 12px 32px rgba(0, 0, 0, 0.4);
    --focus-ring: 0 0 0 3px rgba(124, 171, 248, 0.5);
  }
}