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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.98), rgba(255, 255, 255, 0.94));
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.03);
  backdrop-filter: blur(12px);
}

.site-header__topbar {
  border-bottom: 1px solid var(--color-border-subtle);
}

.site-header__topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
}

.site-header__branding {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.site-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
}

.site-header__logo-mark {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 1.2rem;
  background: radial-gradient(circle at 30% 20%, var(--color-champagne), var(--color-primary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-accent);
  font-weight: 600;
  color: #ffffff;
  box-shadow: var(--shadow-soft);
}

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

.site-header__logo-title {
  font-family: var(--font-display);
  font-size: var(--font-size-lg);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.site-header__logo-subtitle {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

.site-header__meta {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  font-size: var(--font-size-xs);
}

.site-header__meta-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
  color: var(--color-text-muted);
}

.site-header__meta-item i {
  color: var(--color-primary-strong);
}

.site-header__nav-wrapper {
  border-bottom: 1px solid rgba(255, 255, 255, 0.6);
}

.site-header__nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-6);
  padding-bottom: var(--space-6);
  gap: var(--space-12);
}

.site-header__nav {
  display: flex;
  align-items: center;
  flex: 1;
}

.site-header__menu {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-header__menu-item {
  position: relative;
}

.site-header__link {
  font-size: var(--font-size-sm);
  color: var(--gray-700);
}

.site-header__cta {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.site-header__cta-btn {
  font-size: var(--font-size-xs);
  padding-inline: 1.2rem;
}

/* Mobile toggle */

.site-header__toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.28rem;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(0, 0, 0, 0.06);
  background-color: #ffffff;
  cursor: pointer;
}

.site-header__toggle-bar {
  width: 1.3rem;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  margin-inline: auto;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

/* Mobile nav default: expanded if no JS; collapsed via .js class */

.site-header__menu {
  flex-wrap: wrap;
}

.site-header__nav-inner {
  flex-wrap: wrap;
}

/* When JS is enabled, collapse menu on small screens */

.js .site-header__menu {
  transition: max-height var(--transition-base), opacity var(--transition-base), visibility var(--transition-base);
}

@media (max-width: 767.98px) {
  .site-header__topbar-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-6);
  }

  .site-header__meta {
    width: 100%;
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .site-header__nav-inner {
    align-items: center;
  }

  .site-header__menu {
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-border-subtle);
  }

  .site-header__cta {
    margin-left: auto;
  }

  .js .site-header__menu {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
  }

  .js .site-header__nav--open .site-header__menu {
    max-height: 18rem;
    opacity: 1;
    visibility: visible;
  }

  .site-header__toggle {
    margin-right: var(--space-8);
  }

  .site-header__nav-inner {
    justify-content: space-between;
  }
}

@media (min-width: 768px) {
  .site-header__toggle {
    display: none;
  }

  .site-header__menu {
    flex-wrap: nowrap;
  }
}

/* Toggle animation when open */

.site-header__nav--open #site-header-toggle .site-header__toggle-bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.site-header__nav--open #site-header-toggle .site-header__toggle-bar:nth-child(2) {
  opacity: 0;
}

.site-header__nav--open #site-header-toggle .site-header__toggle-bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

@media (prefers-reduced-motion: reduce) {
  .site-header__toggle-bar {
    transition: none;
  }
}