@layer layout {
/* Header */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--border-light);
  position: relative;
  margin-bottom: var(--spacing-md);
  /* Context for mobile menu */
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-weight: 700;
  font-size: 1.25rem;
}

.logo-icon {
  height: 80px;
  object-fit: contain;
  width: 80px;
}

/* Mobile Toggle Button */
.mobile-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  padding: 0.5rem;
  font-size: 1.5rem;
  color: var(--text-secondary-light);
  cursor: pointer;
  z-index: 60;
  margin-left: auto;
  /* Push to right on mobile if needed */
}

.mobile-menu-btn:hover {
  color: var(--primary);
  background-color: var(--bg-card-light);
  border-radius: 0.5rem;
}

@media (min-width: 768px) {
  .mobile-menu-btn {
    display: none;
  }
}

/* Mobile Drawer Backdrop */
.mobile-backdrop {
  position: fixed;
  inset: 0;
  background-color: oklch(0% 0 0 / 0.5);
  z-index: 90;
  backdrop-filter: blur(2px);
  transition: opacity 0.3s;
}

.mobile-backdrop.hidden {
  opacity: 0;
  pointer-events: none;
}

/* Main Nav Container (Drawer on Mobile, Flex on Desktop) */
.main-nav {
  /* Mobile Defaults (Drawer) */
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 80%;
  max-width: 320px;
  background-color: var(--bg-light);
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  z-index: 100;
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: -4px 0 15px oklch(0% 0 0 / 0.1);
  overflow-y: auto;
}

.main-nav.open {
  transform: translateX(0);
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-md);
}

.drawer-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-light);
}

.close-btn {
  padding: 0.5rem;
  border-radius: 0.375rem;
  color: var(--text-secondary-light);
  transition: background-color 0.2s;
}

.close-btn:hover {
  background-color: var(--bg-card-dark);
  /* gently distinct */
  color: var(--primary);
}

/* Navigation Links inside Drawer */
.nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.nav-link {
  font-size: 1rem;
  /* Larger on mobile */
  font-weight: 500;
  color: var(--text-secondary-light);
  transition: color 0.2s;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-light);
}

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

/* Header Actions inside Drawer */
.header-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-top: auto;
  /* Push to bottom on mobile if desired, or just flow */
}

/* Desktop Styles */
@media (min-width: 768px) {

  .mobile-menu-btn,
  .mobile-backdrop,
  .drawer-header {
    display: none;
  }

  /* Reset .main-nav to be a normal flex bar */
  .main-nav {
    position: static;
    width: auto;
    max-width: none;
    height: auto;
    background: none;
    padding: 0;
    box-shadow: none;
    transform: none;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    /* Layout: Nav Left, Actions Right (in this container) */
    flex-grow: 1;
    margin-left: var(--spacing-lg);
    overflow: visible;
  }

  .nav-links {
    flex-direction: row;
    gap: var(--spacing-lg);
    border: none;
  }

  .nav-link {
    font-size: 0.875rem;
    padding: 0;
    border: none;
  }

  .header-actions {
    flex-direction: row;
    align-items: center;
    margin-top: 0;
  }
}

.search-bar {
  display: none;
  /* Hidden on mobile */
  align-items: center;
  background-color: var(--color-surface-alt);
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  color: var(--text-secondary-light);
}

@media (min-width: 768px) {
  .search-bar {
    display: flex;
  }
}

.search-bar input {
  border: none;
  background: none;
  outline: none;
  margin-left: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-light);
  width: 120px;
}

.search-bar .material-symbols-outlined {
  font-size: 1.25rem;
}

}