/* ================================================================
   HEADER & NAV
   ================================================================ */

header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-lg);
  height: var(--header-height);
  background: var(--navy-dark);
  border-bottom: 1px solid var(--accent-line);
}

/* Brand ──────────────────────────────────────────────────────── */

.header-brand {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.header-brand::before {
  content: '';
  display: block;
  width: 28px;
  height: 2px;
  background: var(--white);
  margin-bottom: 6px;
}

.header-brand .brand-name {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--white);
}

.header-brand .brand-title {
  font-size: 0.65rem;
  font-weight: 300;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--white-dim);
}

/* Navigation ─────────────────────────────────────────────────── */

nav {
  display: flex;
  gap: 6px;
}

nav a {
  display: inline-block;
  padding: var(--spacing-xs) 20px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--white-dim);
  text-decoration: none;
  border-radius: 2px;
  transition: color 0.2s, background 0.2s;
}

nav a:hover {
  color: var(--white);
  background: var(--white-faint);
}