/* Header styles for Veltorixx - builds on base.css */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: radial-gradient(circle at top left, rgba(212, 175, 55, 0.16) 0, transparent 45%),
              linear-gradient(to bottom, rgba(5, 5, 9, 0.9), rgba(5, 5, 9, 0.7));
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: var(--space-4);
}

/* Brand */
.site-header__brand {
  display: flex;
  align-items: center;
}

.site-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
}

.site-header__logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 20% 0, rgba(255, 255, 255, 0.3) 0, transparent 40%),
              conic-gradient(from 160deg, #f6e6b4, #d4af37, #b89430, #f6e6b4);
  box-shadow: var(--shadow-glow-gold);
}

.site-header__logo-symbol {
  font-family: var(--font-serif-display);
  font-size: 1.1rem;
  color: #050509;
}

.site-header__brand-text {
  display: flex;
  flex-direction: column;
}

.site-header__brand-name {
  font-family: var(--font-serif-display);
  font-size: 1.1rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.site-header__brand-tagline {
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* Navigation */
.site-header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

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

.site-header__nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  font-size: 0.85rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-soft);
  padding-block: 0.25rem;
}

.site-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.3rem;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.95), transparent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition-base);
}

.site-header__nav-link:hover,
.site-header__nav-link:focus-visible {
  color: var(--color-text);
}

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

.site-header__nav-item--highlight .site-header__nav-link {
  color: var(--color-primary);
}

.site-header__cta-wrapper {
  display: flex;
  align-items: center;
}

.site-header__cta {
  font-size: 0.7rem;
  padding-inline: 1.5rem;
  padding-block: 0.55rem;
}

/* Mobile toggle */
.site-header__toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: radial-gradient(circle at 0 0, rgba(255, 255, 255, 0.08) 0, transparent 60%), #050509;
  color: var(--color-text);
  padding: 0;
  align-items: center;
  justify-content: center;
}

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

.site-header__toggle-bar + .site-header__toggle-bar {
  margin-top: 4px;
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-bar:nth-child(1) {
  transform: rotate(45deg) translate(3px, 3px);
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-bar:nth-child(2) {
  opacity: 0;
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-bar:nth-child(3) {
  transform: rotate(-45deg) translate(3px, -3px);
}

/* Responsive */
@media (max-width: 960px) {
  .site-header__toggle {
    display: inline-flex;
    flex-direction: column;
  }

  .site-header__nav {
    position: fixed;
    inset: var(--header-height) 0 auto 0;
    background: radial-gradient(circle at top left, rgba(183, 18, 60, 0.3) 0, #050509 60%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-6) var(--space-4) var(--space-8);
    gap: var(--space-4);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-base), opacity var(--transition-base);
  }

  .site-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }

  .site-header__nav-link {
    font-size: 0.9rem;
  }

  .site-header__cta-wrapper {
    width: 100%;
  }

  .site-header__cta {
    width: 100%;
    justify-content: center;
  }

  .site-header--nav-open .site-header__nav {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
}

@media (max-width: 640px) {
  .site-header__brand-tagline {
    display: none;
  }
}