/* Header Styles */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 1000;
  background-color: rgba(18, 18, 18, 0.9);
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  transition: var(--transition-normal);
}

.logo {
  max-width: 180px;
}

.logo img {
  height: 50px;
  width: auto;
}

.main-nav ul {
  display: flex;
  list-style: none;
  gap: var(--space-md);
}

.main-nav a {
  font-family: var(--font-pixel);
  font-size: 0.9rem;
  padding: var(--space-xs) var(--space-sm);
  position: relative;
  transition: var(--transition-normal);
}

.main-nav a::before {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-pink);
  transform: scaleX(0);
  transition: transform var(--transition-normal);
  transform-origin: right;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--color-pink);
  text-shadow: 0 0 8px var(--glow-color);
}

.main-nav a:hover::before,
.main-nav a.active::before {
  transform: scaleX(1);
  transform-origin: left;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 22px;
  cursor: pointer;
}

.menu-toggle span {
  width: 100%;
  height: 3px;
  background-color: var(--text-primary);
  border-radius: var(--radius-sm);
  transition: var(--transition-normal);
}