/* Header-specific styles for Karlovia */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: linear-gradient(to bottom, rgba(2, 3, 6, 0.96), rgba(5, 7, 12, 0.88));
  border-bottom: 1px solid rgba(118, 131, 150, 0.45);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.nav-left {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav-logo-mark {
  width: 2rem;
  height: 2rem;
  border-radius: 0.75rem;
  background: radial-gradient(circle at 30% 10%, rgba(25, 184, 184, 0.6), transparent 55%),
              radial-gradient(circle at 70% 90%, rgba(55, 201, 138, 0.5), transparent 60%),
              #050608;
  box-shadow: 0 0 0 1px rgba(25, 184, 184, 0.4), 0 14px 30px rgba(0, 0, 0, 0.85);
}

.nav-logo-text {
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gray-50);
}

.nav-primary {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav-menu {
  display: none;
}

.nav-link {
  position: relative;
  font-size: var(--font-size-sm);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-soft);
  padding-block: 0.25rem;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-success));
  transition: width var(--transition-base);
}

.nav-link:hover,
.nav-link[aria-current="page"] {
  color: var(--gray-50);
}

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

.nav-link-cta {
  padding-inline: 1.1rem;
  padding-block: 0.4rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(25, 184, 184, 0.7);
  background: radial-gradient(circle at top left, rgba(25, 184, 184, 0.24), transparent 60%),
              rgba(7, 10, 16, 0.98);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.5);
}

.nav-link-cta:hover {
  background: radial-gradient(circle at top left, rgba(25, 184, 184, 0.34), transparent 60%),
              rgba(7, 10, 16, 0.98);
}

/* Mobile toggle */

.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 0.25rem;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 999px;
  border: 1px solid rgba(118, 131, 150, 0.7);
  background: radial-gradient(circle at top left, rgba(25, 184, 184, 0.2), transparent 65%),
              rgba(7, 10, 16, 0.96);
  color: var(--gray-50);
}

.nav-toggle span {
  display: block;
  width: 1.1rem;
  height: 1px;
  border-radius: 999px;
  background: rgba(245, 247, 251, 0.9);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-toggle:focus-visible {
  box-shadow: var(--shadow-outline);
}

.nav-toggle.is-open span:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}

.nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-open span:nth-child(3) {
  transform: translateY(-4px) rotate(-45deg);
}

/* Mobile drawer */

.nav-drawer {
  position: fixed;
  inset: var(--header-height) 0 auto 0;
  background: rgba(5, 7, 12, 0.98);
  border-bottom: 1px solid rgba(118, 131, 150, 0.4);
  padding: var(--space-4);
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base), transform var(--transition-base);
}

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

.nav-drawer-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.nav-drawer-link {
  display: block;
  padding-block: 0.35rem;
  font-size: var(--font-size-sm);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-soft);
}

.nav-drawer-link-cta {
  margin-top: var(--space-2);
  padding: 0.55rem 0.9rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(25, 184, 184, 0.7);
  background: radial-gradient(circle at top left, rgba(25, 184, 184, 0.24), transparent 60%),
              rgba(7, 10, 16, 0.98);
  color: var(--gray-50);
}

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

@media (min-width: 960px) {
  .nav-toggle {
    display: none;
  }

  .nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-4);
  }

  .nav-drawer {
    display: none !important;
  }
}