:root {
  --color-primary: #0B3D91;
  --color-primary-dark: #082a66;
  --color-primary-light: #3763b0;
  --color-accent-teal: #00A0A0;
  --color-accent-teal-dark: #007575;
  --color-accent-gold: #E8A200;
  --color-accent-gold-dark: #b87f00;
  --color-ink: #1A1A1A;
  --color-ink-soft: #4a4d55;
  --color-surface: #ffffff;
  --color-surface-alt: #F5F6F8;
  --color-surface-raised: #ffffff;
  --color-border: #e1e4ea;
  --color-danger: #b3261e;
  --color-danger-bg: #fdecea;
  --color-success: #1c7c54;
  --color-success-bg: #e8f5ee;
  --color-focus: #0B3D91;

  --font-sans: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;

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

  --shadow-sm: 0 1px 2px rgba(11, 61, 145, 0.08);
  --shadow-md: 0 4px 16px rgba(11, 61, 145, 0.12);
  --shadow-lg: 0 12px 32px rgba(11, 61, 145, 0.16);

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;

  --content-max: 1160px;
  --header-height: 72px;

  --transition-fast: 150ms ease;
  --transition-base: 220ms ease;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-ink: #f2f3f5;
    --color-ink-soft: #b7bac2;
    --color-surface: #10131c;
    --color-surface-alt: #171b26;
    --color-surface-raised: #1c2130;
    --color-border: #2a2f3f;
  }
}