/* Header specific styles for Pinnacle Session */

.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(16px);
  background: linear-gradient(to bottom, rgba(5, 8, 22, 0.96), rgba(5, 8, 22, 0.84));
  border-bottom: 1px solid rgba(15, 23, 42, 0.9);
}

.site-header-inner {
  height: var(--header-height);
}

.header-brand {
  gap: var(--space-3);
}

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

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: radial-gradient(circle at 20% 0, #f97316, #ea580c 40%, #0b1020 100%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  color: #0b1020;
  box-shadow: var(--shadow-sm);
}

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

.brand-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

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

/* Navigation */

.site-nav {
  display: flex;
}

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

.nav-item-cta .nav-link-cta {
  padding-inline: 1.1rem;
  padding-block: 0.4rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-strong));
  color: #0b1020;
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  box-shadow: 0 10px 28px rgba(249, 115, 22, 0.45);
}

.nav-item-cta .nav-link-cta:hover {
  box-shadow: 0 16px 42px rgba(249, 115, 22, 0.6);
}

.nav-link {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-pill);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--color-text);
  background: rgba(15, 23, 42, 0.9);
}

/* Utility class that can be toggled server-side for active state */
.nav-link--active {
  color: var(--color-primary);
  background: rgba(249, 115, 22, 0.12);
}

/* Mobile navigation */

.nav-toggle {
  display: none;
  position: relative;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.5);
  background: rgba(15, 23, 42, 0.95);
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.nav-toggle-bar {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--gray-200);
  transition: transform var(--transition-base), opacity var(--transition-base), background-color var(--transition-base);
}

@media (max-width: 768px) {
  .site-header-inner {
    height: auto;
    padding-block: 10px;
  }

  .nav-toggle {
    display: inline-flex;
    flex-direction: column;
  }

  .site-nav {
    position: absolute;
    inset-inline: 0;
    top: calc(100% - 4px);
    padding: 0 var(--space-4) var(--space-4);
    background: radial-gradient(circle at top, rgba(15, 23, 42, 0.98), rgba(15, 23, 42, 0.98));
    border-bottom: 1px solid rgba(15, 23, 42, 0.9);
    transform-origin: top;
    transform: scaleY(1);
  }

  .site-nav.is-collapsed {
    display: none;
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
    margin-top: var(--space-3);
  }

  .nav-item-cta {
    width: 100%;
  }

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

/* Mobile menu open state animation */

.nav-toggle.is-open .nav-toggle-bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

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

.nav-toggle.is-open .nav-toggle-bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

@media (min-width: 769px) {
  .site-nav {
    position: static;
    padding: 0;
    background: transparent;
    border-bottom: none;
  }
}