/* Header-specific styles for Utvoria
   Builds on base.css navigation primitives
*/

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: rgba(250, 247, 242, 0.96);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0, 0, 0, 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 {
  flex: 1;
  display: flex;
  align-items: center;
}

.site-header__logo {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gray-800);
}

.site-header__nav {
  flex: 2;
  display: flex;
  justify-content: center;
}

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
  margin: 0;
  padding: 0;
}

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

.site-nav__link {
  font-size: var(--font-size-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gray-700);
  position: relative;
  padding-bottom: 4px;
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-primary);
  transition: width var(--transition-normal);
}

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

.site-header__meta {
  flex: 1;
  display: flex;
  justify-content: flex-end;
}

/* 21+ badge is defined in base.css as .badge-21; minor alignment tweaks */
.badge-21 {
  white-space: nowrap;
}

/* Mobile menu toggle */
.site-header__toggle {
  display: none;
  align-items: center;
  gap: var(--space-2);
  padding: 0.45rem 0.7rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(0, 0, 0, 0.12);
  background-color: #ffffff;
  cursor: pointer;
  font-size: var(--font-size-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray-700);
}

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

.site-header__toggle-icon {
  position: relative;
  width: 18px;
  height: 12px;
}

.site-header__toggle-icon::before,
.site-header__toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 999px;
  background-color: var(--gray-800);
  transition: transform var(--transition-normal), top var(--transition-normal), bottom var(--transition-normal), opacity var(--transition-normal);
}

.site-header__toggle-icon::before {
  top: 0;
}

.site-header__toggle-icon::after {
  bottom: 0;
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-icon::before {
  top: 5px;
  transform: rotate(45deg);
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-icon::after {
  bottom: 5px;
  transform: rotate(-45deg);
}
@media (max-width: 960px) {

  .site-header__inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
  }

  .site-header__brand {
    flex: 1;
    order: 1;
  }

  .site-header__toggle {
    display: inline-flex;
    order: 2;
  }

  .site-header__nav {
    order: 3;
    flex: 0 0 100%;
    width: 100%;

    overflow: hidden;

    max-height: 0;
    opacity: 0;
    transform: translateY(-20px);

    transition:
      max-height .35s ease,
      opacity .35s ease,
      transform .35s ease;
  }

  /* Відкрите меню */
  .site-header__nav:not(.is-collapsed) {
    max-height: 500px;
    opacity: 1;
    transform: translateY(0);
  }

  .site-header__nav-list {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;

    padding: 1rem 0;
    margin: 0;

    border-top: 1px solid rgba(0,0,0,.05);
  }

  .site-header__meta {
    width: 100%;
    order: 4;
    margin-top: 12px;
    text-align: center;
  }
}

@media (max-width: 640px) {
  .site-header__meta {
    order: 1;
  }
}