/* Header styles for Ultimate Level Up PL */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  background: linear-gradient(180deg, rgba(5, 6, 16, 0.96), rgba(5, 6, 16, 0.86));
  border-bottom: 1px solid rgba(37, 43, 74, 0.96);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
  gap: var(--space-4);
}

.header-brand {
  display: flex;
  align-items: center;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 40%;
  background: conic-gradient(from 160deg, var(--color-primary), var(--color-accent-purple), var(--color-accent-emerald), var(--color-primary));
  box-shadow: var(--shadow-neon-primary);
  position: relative;
}

.brand-mark::after {
  content: "UL";
  position: absolute;
  inset: 3px;
  border-radius: inherit;
  background: #050610;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.brand-subtitle {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* Navigation */

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

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

.nav-link {
  position: relative;
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding-block: 0.15rem;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.3rem;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent-emerald));
  transition: width var(--transition-base);
}

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

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

.nav-cta-btn {
  padding-inline: 1rem;
  font-size: 0.78rem;
}

/* Mobile nav toggle */

.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text);
  border-radius: var(--radius-xl);
  padding: 0.4rem 0.75rem;
  border: 1px solid rgba(51, 187, 255, 0.4);
  background: rgba(5, 7, 20, 0.9);
}

.nav-toggle-box {
  position: relative;
  width: 20px;
  height: 16px;
}

.nav-toggle-line {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 999px;
  background: var(--color-primary);
  transition: transform var(--transition-base), opacity var(--transition-base), top var(--transition-base), bottom var(--transition-base);
}

.nav-toggle-line-1 {
  top: 0;
}

.nav-toggle-line-2 {
  top: 7px;
}

.nav-toggle-line-3 {
  bottom: 0;
}

.nav-toggle-text {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

/* Closed/open states */

.nav-toggle.is-active .nav-toggle-line-1 {
  top: 7px;
  transform: rotate(45deg);
}

.nav-toggle.is-active .nav-toggle-line-2 {
  opacity: 0;
}

.nav-toggle.is-active .nav-toggle-line-3 {
  bottom: 7px;
  transform: rotate(-45deg);
}

/* Responsive behavior */

@media (max-width: 768px) {
  .header-inner {
    padding-top: var(--space-2);
    padding-bottom: var(--space-2);
  }

  .site-nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    padding-inline: var(--space-4);
    padding-bottom: var(--space-4);
    transform-origin: top;
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-4);
    margin-top: var(--space-2);
    border-radius: var(--radius-card);
    background: radial-gradient(circle at top left, rgba(51, 187, 255, 0.19), transparent 55%),
                radial-gradient(circle at bottom right, rgba(168, 85, 255, 0.2), transparent 55%),
                rgba(5, 7, 20, 0.98);
    box-shadow: var(--shadow-strong);
  }

  .site-nav {
    display: none;
  }

  .site-nav.is-open {
    display: block;
  }

  .nav-cta {
    width: 100%;
  }

  .nav-cta-btn {
    width: 100%;
    justify-content: center;
  }
}

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

/* Reduced motion */

@media (prefers-reduced-motion: reduce) {
  .nav-toggle-line {
    transition: none;
  }
}