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

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: rgba(245, 241, 235, 0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-4);
  padding-bottom: var(--space-4);
}

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

.site-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
}

.site-header__logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent-graphite) 70%);
  box-shadow: var(--shadow-md);
  position: relative;
}

.site-header__logo-mark::before,
.site-header__logo-mark::after {
  content: "";
  position: absolute;
  inset: 7px;
  border-radius: 7px;
  border: 2px solid rgba(255, 255, 255, 0.84);
}

.site-header__logo-mark::after {
  inset: 11px 10px 9px 13px;
  border-width: 0 0 2px 0;
}

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

.site-header__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-accent-graphite);
}

.site-header__subtitle {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* Navigation */

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

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

.site-header__nav-link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-accent-graphite);
  position: relative;
  padding-block: 0.35rem;
}

.site-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background-color: var(--color-primary);
  transition: width var(--transition-normal);
}

.site-header__nav-link:hover::after,
.site-header__nav-link:focus-visible::after {
  width: 100%;
}

.site-header__nav-item--cta {
  margin-left: var(--space-6);
}

.site-header__nav-cta {
  font-size: var(--font-size-xs);
}

/* Mobile menu toggle */

.site-header__toggle {
  display: none;
  position: relative;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--gray-300);
  align-items: center;
  justify-content: center;
  background-color: #ffffff;
}

.site-header__toggle-icon,
.site-header__toggle-icon::before,
.site-header__toggle-icon::after {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background-color: var(--color-accent-graphite);
  transition: transform var(--transition-normal), opacity var(--transition-fast), top var(--transition-normal), bottom var(--transition-normal);
  position: relative;
}

.site-header__toggle-icon::before,
.site-header__toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
}

.site-header__toggle-icon::before {
  top: -6px;
}

.site-header__toggle-icon::after {
  bottom: -6px;
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-icon {
  background-color: transparent;
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-icon::before {
  top: 0;
  transform: rotate(45deg);
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-icon::after {
  bottom: 0;
  transform: rotate(-45deg);
}

/* Mobile layout */

@media (max-width: 960px) {
  .site-header__inner {
    padding-top: var(--space-3);
    padding-bottom: var(--space-3);
  }

  .site-header__toggle {
    display: inline-flex;
  }

  .site-header__nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background-color: rgba(245, 241, 235, 0.98);
    border-bottom: 1px solid var(--gray-200);
    transform-origin: top;
    transform: scaleY(0.95);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), transform var(--transition-normal), visibility var(--transition-fast);
  }

  .site-header__nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-4) var(--container-padding-x) var(--space-6);
  }

  .site-header__nav-item {
    border-bottom: 1px solid var(--gray-100);
  }

  .site-header__nav-item:last-child {
    border-bottom: none;
    margin-top: var(--space-4);
  }

  .site-header__nav-link {
    display: block;
    padding-block: 0.9rem;
  }

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

  .site-header__nav-item--cta {
    margin-left: 0;
  }

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

  .site-header__nav--open {
    opacity: 1;
    visibility: visible;
    transform: scaleY(1);
  }
}

@media (max-width: 520px) {
  .site-header__subtitle {
    display: none;
  }
}