/**
 * Header Component Styles
 */

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background-color: rgba(26, 26, 31, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-md) 0;
}

.navbar {
  width: 100%;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar-brand {
  flex-shrink: 0;
}

.brand-name {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.brand-name:hover {
  color: var(--color-accent-primary);
}

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

.nav-link {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--color-accent-primary);
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.nav-link:hover {
  color: var(--color-accent-primary);
}

.nav-link:hover::after {
  transform: scaleX(1);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text-primary);
  font-size: var(--font-size-2xl);
  cursor: pointer;
  padding: var(--space-sm);
}

/* Responsive */
@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: block;
  }

  .navbar-menu {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    flex-direction: column;
    background-color: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-xl);
    gap: var(--space-lg);
    transform: translateY(-100%);
    transition: transform var(--transition-base);
    opacity: 0;
    pointer-events: none;
  }

  .navbar-menu.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav-link {
    font-size: var(--font-size-lg);
    text-align: center;
  }
}