/* Header-specific styles for Bartosz Jakusz DOP */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(14px);
  background: rgba(249, 250, 251, 0.9);
  border-bottom: 1px solid rgba(229, 231, 235, 0.9);
}

.site-header__inner {
  display: flex;
  flex-direction: column;
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
  gap: var(--space-3);
}

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

.site-logo {
  font-family: var(--font-display);
  font-size: var(--font-size-xl);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.site-logo span {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(182, 139, 43, 0.45);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.98), rgba(249, 250, 251, 0.8));
  box-shadow: var(--shadow-xs);
}

/* Primary nav layout */
.site-nav {
  width: 100%;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.nav__item {
  list-style: none;
}

.nav__link {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  color: var(--color-text-muted);
  transition: color var(--transition-base),
              background-color var(--transition-base),
              transform var(--transition-fast);
}

.nav__link:hover,
.nav__link:focus-visible {
  color: var(--color-accent);
  background-color: rgba(182, 139, 43, 0.06);
}

.nav__link--highlight {
  border: 1px solid rgba(182, 139, 43, 0.7);
  color: var(--color-accent);
}

.nav__link--active {
  background-color: var(--color-primary-soft);
  color: var(--color-accent);
}

/* Mobile toggle */
.site-header__toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 40px;
  height: 32px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--gray-200);
  background-color: #ffffff;
  padding: 0 10px;
}

.site-header__toggle-line {
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background-color: var(--color-accent);
  transition: transform var(--transition-base),
              opacity var(--transition-base),
              background-color var(--transition-base);
}

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

/* Mobile nav behavior: collapsed by default */
@media (max-width: 767px) {
  .site-nav {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transform: translateY(-4px);
    transition: max-height var(--transition-slow),
                opacity var(--transition-base),
                transform var(--transition-base);
  }

  .site-nav--open {
    max-height: 260px; /* enough for menu items */
    opacity: 1;
    transform: translateY(0);
  }

  .nav {
    flex-direction: column;
    align-items: center;
  }

  .site-header__toggle--open .site-header__toggle-line:first-child {
    transform: translateY(3px) rotate(45deg);
  }

  .site-header__toggle--open .site-header__toggle-line:last-child {
    transform: translateY(-3px) rotate(-45deg);
  }
}

/* Desktop adjustments */
@media (min-width: 768px) {
  .site-header__inner {
    flex-direction: column;
    align-items: center;
  }

  .site-header__toggle {
    display: none;
  }

  .site-nav {
    max-height: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}