/**
 * Shared Rockstick site chrome — nav, buttons, footer, mobile menu
 */
:root {
  --bg: var(--paper-2);
}

.site-shell-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 12px 0 16px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--rule);
}

.site-shell-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
  flex-shrink: 0;
}

.site-shell-logo .site-logo-mark {
  width: 44px;
  height: auto;
}

.site-shell-logo .brand {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.04em;
}

.site-menu-btn {
  display: none;
  margin-left: auto;
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 600;
  padding: 10px 14px;
  border-radius: 4px;
  border: 1px solid var(--rule);
  background: var(--card);
  color: var(--ink);
  cursor: pointer;
}

.site-shell-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  flex: 1;
}

.site-shell-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}

.site-theme-label {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  font-weight: 600;
  color: var(--ink-soft);
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-control-select {
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  padding: 8px 10px;
  border: 1px solid var(--rule);
  border-radius: 4px;
  background: var(--card);
  color: var(--ink);
}

/* Unified buttons — use instead of plain blue links */
.site-btn,
a.site-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.2;
  padding: 10px 16px;
  border-radius: 4px;
  border: 1px solid var(--rule);
  background: var(--card);
  color: var(--ink);
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, opacity 0.15s;
  white-space: nowrap;
}

.site-btn:hover {
  border-color: var(--accent);
  color: var(--ink);
}

.site-btn--primary,
a.site-btn--primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--card);
}

.site-btn--primary:hover {
  opacity: 0.9;
  color: var(--card);
}

.site-btn--ghost,
a.site-btn--ghost {
  background: var(--paper-2);
}

.site-btn--nav.is-active,
a.site-btn--nav.is-active {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
}

.site-page-header {
  margin-bottom: 28px;
  text-align: left;
}

.site-page-header h1 {
  font-family: 'Fraunces', serif;
  font-weight: 500;
  font-size: clamp(26px, 4.5vw, 38px);
  line-height: 1.15;
  margin: 0 0 10px;
  color: var(--ink);
}

.site-page-lead {
  font-family: 'Source Serif 4', serif;
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink-soft);
  margin: 0;
  max-width: 720px;
}

.site-footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  margin-top: 48px;
  padding: 24px 0 8px;
  border-top: 1px solid var(--rule);
  text-align: center;
}

.site-footer-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  width: 100%;
}

.site-footer-note {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--ink-soft);
  margin: 0;
}

.site-footer #clock {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--ink-soft);
}

/* Align legacy nav-link with site buttons */
.nav-link,
a.nav-link {
  display: inline-flex;
  align-items: center;
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  padding: 10px 16px;
  border: 1px solid var(--rule);
  border-radius: 4px;
  background: var(--card);
}

.nav-link:hover {
  border-color: var(--accent);
  color: var(--ink);
}

.nav-link--accent {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--card);
}

.seo-guide-wrap footer a,
.showcase-wrap footer a,
footer a:not(.site-btn) {
  display: inline-flex;
  align-items: center;
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 600;
  padding: 10px 16px;
  border-radius: 4px;
  border: 1px solid var(--rule);
  background: var(--card);
  color: var(--ink);
  text-decoration: none;
}

.seo-guide-wrap footer a:hover,
.showcase-wrap footer a:hover {
  border-color: var(--accent);
}

.showcase-wrap {
  max-width: 1100px;
}

.showcase-header {
  margin-bottom: 24px;
}

@media (max-width: 768px) {
  .site-menu-btn {
    display: inline-flex;
  }

  .site-shell-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    order: 4;
    padding-top: 8px;
  }

  .site-shell-nav.is-open {
    display: flex;
  }

  .site-shell-nav .site-btn {
    width: 100%;
    justify-content: center;
  }

  .site-shell-actions {
    width: 100%;
    margin-left: 0;
    order: 3;
  }

  .site-theme-label {
    width: 100%;
    justify-content: space-between;
  }

  .site-control-select {
    flex: 1;
    max-width: 220px;
  }

  .site-shell-bar {
    padding-bottom: 12px;
  }

  .site-footer-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .site-footer-actions .site-btn {
    width: 100%;
  }
}