/* Header layout and navigation for "FOR YOU" Marta Bujanowska */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(22px);
  background: linear-gradient(to bottom, rgba(2, 6, 23, 0.95), rgba(2, 6, 23, 0.8));
  border-bottom: 1px solid rgba(31, 41, 55, 0.9);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-3);
  gap: var(--space-4);
}

/* Brand */

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

.site-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}

.site-header__logo-mark {
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 1.2rem;
  background: radial-gradient(circle at 30% 0, rgba(248, 250, 252, 0.65), transparent 60%),
              linear-gradient(135deg, #f97316, #ef4444);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.9);
  position: relative;
}

.site-header__logo-chip {
  width: 0.9rem;
  height: 0.9rem;
  border-radius: 999px;
  border: 2px solid rgba(15, 23, 42, 0.9);
  background: radial-gradient(circle at 30% 0, #fefce8, #fb923c);
}

.site-header__title-group {
  display: flex;
  flex-direction: column;
}

.site-header__title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--gray-50);
}

.site-header__subtitle {
  font-size: var(--font-size-xs);
  color: var(--gray-400);
}

/* Navigation */

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

.site-header__nav-list {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.site-header__nav-link {
  position: relative;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--gray-200);
  padding-block: 0.25rem;
}

.site-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.15rem;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, #f97316, #facc15);
  transition: width var(--transition-base);
}

.site-header__nav-link:hover,
.site-header__nav-link:focus-visible {
  color: var(--gray-50);
}

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

.site-header__nav-item--cta .site-header__nav-link--cta {
  padding-inline: 0.95rem;
  padding-block: 0.45rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(249, 115, 22, 0.9);
  background: radial-gradient(circle at top left, rgba(249, 115, 22, 0.23), transparent 60%),
              rgba(15, 23, 42, 1);
  color: var(--gray-50);
  box-shadow: 0 12px 32px rgba(249, 115, 22, 0.35);
}

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

.site-header__nav-item--cta .site-header__nav-link--cta:hover,
.site-header__nav-item--cta .site-header__nav-link--cta:focus-visible {
  background: radial-gradient(circle at top left, rgba(249, 115, 22, 0.3), transparent 60%),
              rgba(15, 23, 42, 1);
  border-color: var(--color-primary-strong);
}

/* Mobile toggle */

.site-header__toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.32rem;
  width: 2.35rem;
  height: 2.35rem;
  border-radius: 999px;
  border: 1px solid rgba(55, 65, 81, 0.9);
  background: radial-gradient(circle at top left, rgba(249, 115, 22, 0.16), transparent 55%),
              rgba(15, 23, 42, 0.98);
  cursor: pointer;
  color: inherit;
}

.site-header__toggle-bar {
  width: 1.15rem;
  height: 2px;
  border-radius: 999px;
  background-color: var(--gray-100);
  margin-inline: auto;
  transition: transform var(--transition-base), opacity var(--transition-base), width var(--transition-base);
}

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

.site-header__toggle[aria-expanded="true"] .site-header__toggle-bar:first-child {
  transform: translateY(4px) rotate(45deg);
  width: 1.2rem;
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-bar:last-child {
  transform: translateY(-4px) rotate(-45deg);
  width: 1.2rem;
}

/* Responsive behavior */

@media (max-width: 768px) {
  .site-header__nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background: radial-gradient(circle at top, rgba(15, 23, 42, 0.98), #020617);
    border-bottom: 1px solid rgba(31, 41, 55, 0.95);
    transform-origin: top;
  }

  .site-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: 0 var(--space-4) var(--space-4);
    gap: 0.35rem;
  }

  .site-header__nav-link {
    display: inline-block;
    padding-block: 0.55rem;
  }

  .site-header__nav-item--cta .site-header__nav-link--cta {
    width: 100%;
    text-align: center;
    justify-content: center;
  }

  /* JS-enhanced state: hidden by default when class present */
  .js-nav-collapsed #primary-navigation {
    display: none;
  }

  .js-nav-open #primary-navigation {
    display: flex;
  }
}

@media (min-width: 769px) {
  .site-header__toggle {
    display: none;
  }

  .site-header__nav {
    position: static;
  }
}

/* Utility when JS is enabled to support transitions without breaking no-JS */

.js-nav-collapsed .site-header__nav,
.js-nav-open .site-header__nav {
  transition: max-height var(--transition-base), opacity var(--transition-base);
}