/* QSDM shared site chrome — teal + black + white + gold.
 * Include after Google Fonts; page-local CSS may refine components.
 */

:root {
  --bg: #061116;
  --bg-2: #0a1f26;
  --panel: #0c242c;
  --panel-2: #12323c;
  --border: rgba(142, 220, 224, 0.16);
  --border-2: rgba(142, 220, 224, 0.28);
  --text: #f4fbfd;
  --text-2: rgba(244, 251, 253, 0.62);
  --muted: rgba(173, 198, 204, 0.72);
  --gold: #d6b75f;
  --teal: #8edce0;
  --accent: var(--gold);
  --accent-2: var(--teal);
  --accent-3: var(--teal);
  --ink: #061116;
  --danger: #ff6b6b;
  --warn: #ffb454;
  --success: #3ddc97;
  --warning: #e8c547;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: "Outfit", system-ui, -apple-system, "Segoe UI", sans-serif;
  --radius: 8px;
  --radius-sm: 0.5rem;
  --header-h: 64px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--teal); }
a:hover { color: #b8eef0; }

/* —— shared sticky header —— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(6, 17, 22, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.site-header-inner {
  width: min(80rem, calc(100% - 2rem));
  margin: 0 auto;
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

@media (min-width: 1024px) {
  .site-header-inner { width: min(80rem, calc(100% - 3rem)); }
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text) !important;
  text-decoration: none !important;
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0;
  flex-shrink: 0;
}

.site-brand img,
.site-brand svg {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  display: block;
}

.site-brand .plus,
.site-brand .dim {
  color: var(--muted);
  font-weight: 500;
}

.site-nav {
  display: none;
  align-items: center;
  gap: 0.1rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.site-nav a {
  padding: 0.4rem 0.7rem;
  border-radius: 999px;
  color: var(--text-2) !important;
  text-decoration: none !important;
  font-size: 0.88rem;
  font-weight: 500;
  transition: color 150ms var(--ease), background 150ms var(--ease);
}

.site-nav a:hover {
  color: var(--text) !important;
  background: rgba(142, 220, 224, 0.08);
}

.site-nav a.active,
.site-nav a[aria-current="page"] {
  color: var(--ink) !important;
  background: var(--gold);
}

.site-actions {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-shrink: 0;
}

.site-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.35rem;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.86rem;
  font-weight: 500;
  text-decoration: none !important;
  transition: background 150ms var(--ease), border-color 150ms var(--ease), transform 150ms var(--ease);
}

.site-btn:hover { transform: translateY(-1px); }

.site-btn-ghost {
  color: var(--text) !important;
  border-color: rgba(142, 220, 224, 0.28);
  background: transparent;
}

.site-btn-ghost:hover {
  background: rgba(142, 220, 224, 0.08);
  border-color: rgba(142, 220, 224, 0.45);
}

.site-btn-solid {
  color: var(--ink) !important;
  background: var(--gold);
  border-color: rgba(214, 183, 95, 0.9);
}

.site-btn-solid:hover { background: #e0c56f; }

.site-menu-toggle {
  display: inline-flex;
  width: 2.35rem;
  height: 2.35rem;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid rgba(142, 220, 224, 0.28);
  background: transparent;
  color: var(--text);
  cursor: pointer;
}

.site-mobile-nav {
  display: none;
  flex-direction: column;
  gap: 0.15rem;
  width: min(80rem, calc(100% - 2rem));
  margin: 0 auto;
  padding: 0 0 0.85rem;
}

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

.site-mobile-nav a {
  padding: 0.65rem 0.2rem;
  color: var(--text-2) !important;
  text-decoration: none !important;
  font-weight: 500;
  font-size: 0.95rem;
}

.site-mobile-nav a:hover { color: var(--teal) !important; }

@media (min-width: 1024px) {
  .site-nav { display: flex; }
  .site-menu-toggle { display: none; }
  .site-mobile-nav { display: none !important; }
}

@media (max-width: 1023px) {
  .site-actions .site-btn-ghost { display: none; }
}