/* ============================================
   SCSR Design Tokens
   ============================================ */

:root {
  /* Color */
  --color-brand-blue: #1E57D8;
  --color-brand-blue-dark: #14409E;
  --color-ink: #15172B;
  --color-paper: #F7F6F3;
  --color-surface: #FFFFFF;
  --color-grey: #6B6E76;
  --color-grey-light: #9A9DA5;
  --color-line: #E4E1D8;
  --color-ink-soft: #4A4C5C;

  /* Type */
  --font-display: 'Fraunces', 'Iowan Old Style', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'IBM Plex Mono', 'SF Mono', Consolas, monospace;

  --fs-display-xl: clamp(2.6rem, 5vw, 4.5rem);
  --fs-display-l: clamp(2rem, 3.5vw, 3rem);
  --fs-display-m: clamp(1.5rem, 2.5vw, 2rem);
  --fs-body-l: 1.25rem;
  --fs-body: 1.0625rem;
  --fs-body-s: 0.9375rem;
  --fs-mono: 0.875rem;

  /* Space */
  --space-xs: 0.5rem;
  --space-s: 1rem;
  --space-m: 1.5rem;
  --space-l: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6.5rem;

  /* Layout */
  --content-width: 1140px;
  --content-narrow: 760px;
  --radius: 4px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  color: var(--color-ink);
  background: var(--color-paper);
  line-height: 1.6;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 var(--space-s);
  color: var(--color-ink);
}

h1 { font-size: var(--fs-display-xl); font-weight: 500; }
h2 { font-size: var(--fs-display-l); }
h3 { font-size: var(--fs-display-m); }

p { margin: 0 0 var(--space-s); }

a {
  color: var(--color-brand-blue);
  text-decoration: none;
}
a:hover { text-decoration: underline; }

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--color-brand-blue);
  outline-offset: 2px;
}

.container {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 var(--space-m);
}

.container--narrow {
  max-width: var(--content-narrow);
}

.mono {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.02em;
}

.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--fs-body);
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius);
  border: 2px solid var(--color-brand-blue);
  background: var(--color-brand-blue);
  color: white;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}
.btn:hover {
  background: var(--color-brand-blue-dark);
  text-decoration: none;
}
.btn--ghost {
  background: transparent;
  color: var(--color-brand-blue);
}
.btn--ghost:hover {
  background: var(--color-brand-blue);
  color: white;
}

@media (max-width: 640px) {
  :root {
    --space-xl: 2.5rem;
    --space-2xl: 3.5rem;
  }
}