/* Shared public chrome: header + footer + section nav for guide, homepage, and auth. */

.page {
  background: var(--ground);
  min-height: 100vh;
  overflow-x: clip;
  max-width: 100%;
}

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 32px;
}

header.site {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(232, 230, 225, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--hairline);
}

header.site .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 16px 32px;
}

.section-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
  flex: 1;
  flex-wrap: wrap;
}

.section-nav a {
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  text-decoration: none;
  padding: 6px 10px;
  border-radius: 999px;
  white-space: nowrap;
}

.section-nav a:hover,
.section-nav a[aria-current="page"] {
  color: var(--ink);
  background: rgba(243, 241, 236, 0.75);
}

.section-nav a[aria-current="page"] {
  font-weight: 600;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: inherit;
  flex-shrink: 0;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-shrink: 0;
}

.header-actions .header-join {
  font-size: 13px;
}

footer.site {
  border-top: 1px solid var(--hairline);
  padding: 28px 0 40px;
  background: var(--ground);
}

footer.site .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 32px;
}

footer.site nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

footer.site nav a {
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
}

footer.site nav a:hover {
  color: var(--ink);
}

.foot-note {
  font-size: 12px;
  color: var(--muted-soft);
}

.index-list {
  display: grid;
  gap: 14px;
  padding-bottom: 48px;
}

.index-card {
  display: block;
  padding: 20px 22px;
  border-radius: var(--r);
  background: var(--raised);
  box-shadow: var(--raise-sm), var(--edge);
  text-decoration: none;
  color: inherit;
  transition: transform 140ms ease;
}

.index-card:active {
  transform: translateY(1px);
}

.index-card h2 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.2;
  color: var(--ink);
}

.index-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.5;
  color: var(--muted);
}

.coming-links {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding-bottom: 48px;
  font-size: 15px;
}

.coming-links .sep {
  color: var(--muted-soft);
}

@media (max-width: 900px) {
  .wrap {
    padding: 0 20px;
  }

  header.site .inner {
    flex-wrap: wrap;
    padding: 16px 20px;
  }

  .section-nav {
    order: 3;
    flex: 0 0 100%;
    width: 100%;
    max-width: 100%;
    justify-content: flex-start;
    flex-wrap: wrap;
    overflow-x: visible;
    gap: 4px;
    padding-bottom: 0;
  }

  footer.site .inner {
    padding: 0 20px;
  }
}

@media (max-width: 480px) {
  .wrap {
    padding: 0 16px;
  }

  header.site .inner {
    padding: 12px 16px;
    gap: 10px;
  }

  .section-nav a {
    font-size: 12px;
    padding: 5px 8px;
  }

  .header-actions {
    gap: 10px;
  }

  .header-actions .link-quiet {
    font-size: 12px;
  }
}