/* Header-specific styles for Evening Retros */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: rgba(249, 247, 243, 0.9);
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  transition: background-color var(--transition-slow), border-color var(--transition-base), box-shadow var(--transition-base);
}

.site-header--scrolled {
  background: rgba(249, 247, 243, 0.98);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.06);
}

.site-header__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0.5rem var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.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-heading);
}

.site-header__logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 30%, #fff, #f4ece0);
  border: 1px solid rgba(0, 0, 0, 0.04);
  box-shadow: var(--shadow-soft);
  position: relative;
}

.site-header__logo-mark::before,
.site-header__logo-mark::after {
  content: "";
  position: absolute;
  inset: 11px;
  border-radius: inherit;
  border: 1px solid rgba(212, 177, 106, 0.55);
}

.site-header__logo-mark::after {
  inset: 16px;
  border-color: rgba(138, 47, 61, 0.8);
}

.site-header__logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.site-header__logo-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-header__logo-subtitle {
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gray-500);
}

/* Desktop navigation */

.site-nav {
  display: none;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.site-nav__link {
  position: relative;
  font-size: var(--font-size-sm);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray-600);
  padding-bottom: 0.25rem;
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--color-accent), transparent);
  transition: width var(--transition-base);
}

.site-nav__link:hover::after,
.site-nav__link[aria-current="page"]::after {
  width: 100%;
}

.site-nav__link[aria-current="page"] {
  color: var(--color-heading);
}


/* Mobile toggle */

.site-header__toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 223;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid rgba(0, 0, 0, 0.04);
  background: rgba(255, 255, 255, 0.9);
  cursor: pointer;
}

.site-header__toggle-bar {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background-color: var(--gray-700);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

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

.site-header__toggle--open .site-header__toggle-bar:nth-child(1) {
  transform: translateY(3.5px) rotate(45deg);
}

.site-header__toggle--open .site-header__toggle-bar:nth-child(2) {
  transform: translateY(-3.5px) rotate(-45deg);
}

/* Mobile navigation panel */

.site-nav-mobile {
  position: fixed;
  inset: 0;
  background: rgba(20, 12, 8, 0.85);
  backdrop-filter: blur(14px);
  z-index: 39;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 4.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.site-nav-mobile--open {
  opacity: 1;
  pointer-events: auto;
}
.site-nav-mobile--open nav {
  width: 100%;
}
.site-nav-mobile__list {
  list-style: none;
  padding: var(--space-4);
  width: 100%;
  margin: 0 auto;
  border-radius: var(--radius-xl);
  background: rgba(27, 20, 14, 0.92);
  box-shadow: var(--shadow-medium);
}

.site-nav-mobile__item + .site-nav-mobile__item {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.site-nav-mobile__link {
  display: block;
  padding: 0.9rem 0.5rem;
  font-size: var(--font-size-md);
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
}

.site-nav-mobile__link:hover {
  color: #fff;
}

.site-nav-mobile__link--accent {
  font-weight: 600;
  color: var(--color-accent);
}

.site-nav-mobile__meta {
  max-width: 420px;
  margin: 0.75rem auto 0;
  padding: 0 1.5rem 1.5rem;
}

.site-nav-mobile__note {
  font-size: var(--font-size-xs);
  line-height: var(--line-height-relaxed);
  color: rgba(255, 255, 255, 0.8);
}

/* Responsive behaviors */

@media (min-width: 960px) {
  .site-header__inner {
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
  }

  .site-nav {
    display: block;
  }

  .site-header__toggle {
    display: none;
  }

  .site-nav-mobile {
    display: none;
  }
}