/* Brand tokens aligned with design_system/tokens/colors.css */
:root {
  --color-primary: #0f7a66;
  --color-primary-dark: #0c5f50;
  --color-accent: #f0a93d;
  --color-surface-card: #fbfaf7;
  --color-surface-app: #e7e5df;
  --color-text-primary: #23241f;
  --color-text-secondary: #5c5c55;
  --color-text-muted: #9a9a90;
  --color-border: #d8d6cd;
  --max-width: 42rem;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

html {
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  line-height: 1.6;
  color: var(--color-text-primary);
  background: var(--color-surface-app);
}

a {
  color: var(--color-primary);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

a:hover {
  color: var(--color-primary-dark);
}

.site-header {
  background: var(--color-surface-card);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner,
.site-footer__inner,
.main {
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
}

.site-header__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  padding: 1rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: inherit;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand:hover {
  color: var(--color-primary-dark);
}

.brand__mark {
  width: 2rem;
  height: 2rem;
  border-radius: 0.5rem;
  background: var(--color-primary);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 0.95rem;
  font-weight: 800;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  font-size: 0.95rem;
}

.nav a {
  color: var(--color-text-secondary);
  text-decoration: none;
}

.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

.main {
  padding: 2rem 0 3rem;
}

.hero {
  background: var(--color-surface-card);
  border: 1px solid var(--color-border);
  border-radius: 1rem;
  padding: 1.75rem 1.5rem;
  margin-bottom: 1.5rem;
}

.hero h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.6rem, 4vw, 2rem);
  line-height: 1.25;
  letter-spacing: -0.03em;
}

.hero p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 1.05rem;
}

.card-list {
  display: grid;
  gap: 0.75rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.card-list a {
  display: block;
  background: var(--color-surface-card);
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  padding: 1rem 1.15rem;
  text-decoration: none;
  color: inherit;
}

.card-list a:hover {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary);
}

.card-list strong {
  display: block;
  color: var(--color-primary-dark);
  margin-bottom: 0.2rem;
}

.card-list span {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

.doc-meta {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin: 0 0 1.5rem;
}

.doc h1 {
  margin: 0 0 0.35rem;
  font-size: clamp(1.45rem, 3.5vw, 1.85rem);
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.doc h2 {
  margin: 2rem 0 0.75rem;
  font-size: 1.15rem;
  line-height: 1.35;
  color: var(--color-primary-dark);
}

.doc p {
  margin: 0 0 0.85rem;
}

.doc ul {
  margin: 0 0 0.85rem;
  padding-left: 1.25rem;
}

.doc li {
  margin-bottom: 0.35rem;
}

.doc strong {
  font-weight: 650;
}

.site-footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-surface-card);
  margin-top: auto;
}

.site-footer__inner {
  padding: 1.25rem 0;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

.site-footer p {
  margin: 0.25rem 0;
}

@media print {
  body {
    background: #fff;
  }

  .site-header,
  .site-footer,
  .nav {
    display: none;
  }

  .main {
    width: 100%;
    padding: 0;
  }

  .doc a {
    color: inherit;
    text-decoration: none;
  }
}