/* Page-level styles for the prototype shell (nav, footer, prose pages). */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: color-mix(in oklch, var(--bg) 88%, transparent);
  border-bottom: 1px solid var(--rule);
}
.site-nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px var(--gutter);
  max-width: var(--maxw); margin: 0 auto;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--sans); font-weight: 600; letter-spacing: -0.01em;
  font-size: 1.02rem;
}
.brand-mark {
  width: 28px; height: 28px;
  background: var(--ink); color: var(--accent);
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--serif); font-style: italic; font-size: 1.2rem;
  border-radius: 2px;
}
.brand small {
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.06em;
  color: var(--ink-soft); text-transform: uppercase; margin-left: 4px;
}

.nav-links {
  display: flex; gap: 4px; align-items: center;
  font-size: 0.95rem;
}
.nav-links a {
  padding: 8px 14px; border-radius: 999px; color: var(--ink-2);
  transition: background 0.15s var(--ease);
}
.nav-links a:hover { background: var(--bg-2); }
.nav-links a.active { background: var(--ink); color: var(--bg); }
.nav-links .sep { width: 1px; height: 18px; background: var(--rule); margin: 0 8px; }

.nav-cta {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 14px 8px 16px;
  border-radius: 999px;
  background: var(--accent); color: var(--ink);
  font-weight: 500; font-size: 0.92rem;
}
.nav-cta .dot {
  width: 8px; height: 8px; border-radius: 999px; background: var(--ink);
  animation: pulse 1.6s var(--ease) infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.4); }
}

/* —— Footer —— */
.site-footer {
  background: var(--ink); color: var(--bg);
  padding: 80px var(--gutter) 32px;
}
.footer-inner {
  max-width: var(--maxw); margin: 0 auto;
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
}
.footer-inner h4 {
  font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.06em;
  text-transform: uppercase; color: #8C9690; margin: 0 0 16px;
  font-weight: 500;
}
.footer-inner ul { list-style: none; padding: 0; margin: 0; }
.footer-inner li { margin-bottom: 8px; }
.footer-inner a { color: #C7CCC9; transition: color 0.15s; }
.footer-inner a:hover { color: var(--accent); }
.footer-bottom {
  max-width: var(--maxw); margin: 64px auto 0;
  border-top: 1px solid #2C3933;
  padding-top: 24px;
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--mono); font-size: 0.74rem;
  color: #8C9690; letter-spacing: 0.04em;
}
.footer-mark {
  font-family: var(--serif); font-style: italic; font-size: 2.6rem;
  color: var(--accent); line-height: 1;
}

/* —— Mobile —— */
@media (max-width: 880px) {
  .nav-links { display: none; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; gap: 12px; align-items: flex-start; }
}