/* ──────────────────────────────────────────────
   shared.css — Onecarat Labs site-wide styles
   Header, footer, base resets, container
   ────────────────────────────────────────────── */

* { box-sizing: border-box; }

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

.container {
  width: min(var(--max, 900px), calc(100% - 32px));
  margin: 0 auto;
}

/* ── Header ── */

header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  background: rgba(2, 8, 23, 0.72);
  border-bottom: 1px solid rgba(120, 160, 255, 0.08);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 16px;
}

.brand {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.brand span { color: var(--accent, #57f2ff); }

.nav-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  align-items: center;
}

.nav-links a {
  color: var(--muted, #8ea2ca);
  font-size: 0.95rem;
}

.nav-links a:hover { color: var(--text, #dbe7ff); }

.lang-switch {
  display: inline-flex;
  gap: 4px;
  margin-left: 4px;
}

.lang-switch button {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(120,160,255,0.12);
  color: var(--muted, #8ea2ca);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: 0.15s ease;
}

.lang-switch button.active {
  background: rgba(87,242,255,0.14);
  border-color: rgba(87,242,255,0.3);
  color: #d9ffff;
}

.lang-switch button:hover:not(.active) {
  background: rgba(255,255,255,0.08);
  color: var(--text, #dbe7ff);
}

/* ── Footer ── */

footer {
  border-top: 1px solid rgba(120, 160, 255, 0.08);
  padding: 28px 0 40px;
  margin-top: 48px;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.92rem;
  color: var(--muted, #8ea2ca);
}

.footer-links {
  margin-top: 4px;
  word-spacing: 0.08em;
}

.footer-links a {
  color: var(--accent-2, #7aa2ff);
  padding: 4px 2px;
  margin: 0 2px;
}

/* ── Last-updated line ── */
.last-updated {
  margin-top: 14px;
  font-size: 0.85rem;
  color: var(--muted, #8ea2ca);
  opacity: 0.7;
}

/* ── Responsive ── */

@media (max-width: 760px) {
  .nav {
    padding: 14px 0;
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    width: 100%;
  }
}