/* ===================================
   Header & Navigation
   =================================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-md) var(--space-md);
  background-color: rgba(36, 36, 36, 0.95);
  backdrop-filter: blur(10px);
  transition:
    background-color 0.3s ease,
    transform 0.3s ease;
  view-transition-name: header;
}

.header.hidden {
  transform: translateY(-100%);
}

.header.scrolled {
  background-color: rgba(36, 36, 36, 0.95);
  backdrop-filter: blur(10px);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--container-lg);
  margin: 0 auto;
}

.logo {
  font-family: var(--font-title);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-light);
  text-decoration: none;
}

/* Hide logo on desktop */
@media (min-width: 768px) {
  .logo {
    display: none;
  }
}

/* Desktop header */
@media (min-width: 768px) {
  .header {
    padding: var(--space-md) var(--space-xl);
    background-color: transparent;
    backdrop-filter: none;
  }

  .header.scrolled {
    background-color: rgba(36, 36, 36, 0.95);
    backdrop-filter: blur(10px);
  }

  .nav-menu {
    display: flex;
    gap: 0.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
    position: static;
    transform: none;
  }

  .nav-menu li a {
    color: var(--color-light);
    text-decoration: none;
    font-weight: 500;
    padding: 0.35rem 0.6rem;
    border-radius: 4px;
    transition: all 0.3s ease;
    font-size: 0.9rem;
  }

  .nav-menu li:nth-child(n) a:hover,
  .nav-menu li:nth-child(n) a.active {
    color: var(--color-primary);
    background-color: rgba(255, 139, 23, 0.2);
  }
}

@media (min-width: 1024px) {
  .header {
    padding: var(--space-md) var(--space-2xl);
    background-color: transparent;
    backdrop-filter: none;
  }

  .header.scrolled {
    background-color: rgba(36, 36, 36, 0.95);
    backdrop-filter: blur(10px);
  }
}

/* Hide header on mobile */
@media (max-width: 767px) {
  .header {
    display: none;
  }
  .nav,
  .nav-menu {
    display: none;
  }
}