/* Header-specific styles for MODA GUIDE 2026 */

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  backdrop-filter: blur(16px);
  background: rgba(250, 246, 242, 0.9);
  border-bottom: 1px solid rgba(220, 210, 200, 0.7);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 0.75rem;
}

.brand {
  font-family: var(--font-sans);
  font-size: var(--font-size-md);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.brand span {
  font-weight: 700;
}

.nav {
  display: flex;
  align-items: center;
  gap: 2.25rem;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.nav__link {
  position: relative;
  padding-block: 0.3rem;
}

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

.nav__link:hover::after,
.nav__link--active::after {
  width: 100%;
}

.burger {
  display: none;
  width: 32px;
  height: 24px;
  position: relative;
}

.burger__line {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 1px;
  background-color: var(--color-text);
  transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.burger__line:nth-child(1) { top: 2px; }
.burger__line:nth-child(2) { top: 11px; }
.burger__line:nth-child(3) { top: 20px; }

.burger--open .burger__line:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}

.burger--open .burger__line:nth-child(2) {
  opacity: 0;
}

.burger--open .burger__line:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

@media (max-width: 840px) {
  .burger {
    display: block;
  }

  .nav {
    position: fixed;
    inset: 3.5rem 0 auto 0;
    padding: 1rem var(--container-padding-x) 1.5rem;
    background: rgba(250, 246, 242, 0.98);
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    border-bottom: 1px solid rgba(220, 210, 200, 0.7);
    transform: translateY(-110%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-normal), opacity var(--transition-normal);
  }

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