/* Header styles scoped to .site-header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(16px);
  background: linear-gradient(to bottom, rgba(5, 6, 7, 0.9), rgba(5, 6, 7, 0.8));
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
}

.site-header__brand {
  display: flex;
  align-items: center;
  min-width: 0;
}

.site-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: var(--font-size-sm);
}

.site-header__logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 0, #f6e6b0, var(--color-accent-gold) 55%, #7b5a10 100%);
  box-shadow: var(--shadow-gold-glow);
  position: relative;
}

.site-header__logo-mark::after {
  content: "TZ";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  color: #1b1205;
}

.site-header__logo-text {
  white-space: nowrap;
}

/* Navigation */
.site-header__nav {
  display: flex;
  align-items: center;
}

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.site-header__nav-link {
  position: relative;
  font-size: var(--font-size-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-neutral-300);
  padding: 0.4rem 0;
}

.site-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.2rem;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-accent-gold), var(--color-primary));
  opacity: 0;
  transform: scaleX(0.5);
  transform-origin: center;
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.site-header__nav-link:focus-visible::after,
.site-header__nav-link:hover::after {
  opacity: 1;
  transform: scaleX(1);
}

.site-header__nav-link--cta {
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(212, 175, 55, 0.8);
  color: var(--color-text);
  background: radial-gradient(circle at 10% 0, rgba(246, 230, 176, 0.16), rgba(212, 175, 55, 0.16));
}

.site-header__nav-link--cta::after {
  display: none;
}

.site-header__nav-link--cta:hover {
  background: radial-gradient(circle at 10% 0, #f6e6b0, #d4af37 55%, #84630f 100%);
  color: #1b1205;
  box-shadow: var(--shadow-gold-glow);
}

/* Mobile toggle */
.site-header__toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 4px;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: var(--color-text);
  cursor: pointer;
  background-color: rgba(17, 19, 23, 0.85);
}

.site-header__toggle-bar {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background-color: var(--color-neutral-100);
  transition: transform var(--transition-base), opacity var(--transition-base), background-color var(--transition-base);
}

.site-header__toggle:focus-visible {
  outline: 2px solid var(--color-accent-gold);
  outline-offset: 3px;
}

/* Toggle animation */
.site-header__toggle.is-active .site-header__toggle-bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.site-header__toggle.is-active .site-header__toggle-bar:nth-child(2) {
  opacity: 0;
}

.site-header__toggle.is-active .site-header__toggle-bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Mobile navigation layout */
@media (max-width: 768px) {
  .site-header__nav {
    position: fixed;
    inset: 64px 0 auto 0;
    max-height: calc(100vh - 64px);
    background: radial-gradient(circle at top, rgba(212, 175, 55, 0.16), transparent 60%),
                radial-gradient(circle at bottom, rgba(15, 124, 74, 0.16), transparent 60%),
                rgba(5, 6, 7, 0.98);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
  }

  .site-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-6) var(--space-4) var(--space-6);
  }

  .site-header__nav-link {
    font-size: var(--font-size-base);
  }

  .site-header__nav--open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    box-shadow: var(--shadow-strong);
  }
}

/* Desktop behavior */
@media (min-width: 769px) {
  .site-header__toggle {
    display: none;
  }

  .site-header__nav {
    position: static;
    opacity: 1 !important;
    visibility: visible !important;
    transform: none !important;
    background: transparent;
    max-height: none;
  }
}

/* Helper class used by JS to disable body scroll when menu open */
body.site-header--nav-open {
  overflow: hidden;
}