/* 
======================
Layout Improvements
======================
*/

/* Cải thiện bố cục chung */
.container {
  padding: 0 var(--spacing-xl);
  max-width: 1400px;
}

/* Thêm submenu */
.submenu-container {
  background-color: var(--background-alt);
  border-bottom: 1px solid var(--border-color);
  padding: 0;
}

.submenu {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  padding: var(--spacing-sm) 0;
}

.submenu-item {
  position: relative;
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-sm);
  color: var(--text-light);
  transition: all var(--transition-fast);
  border-radius: var(--border-radius-sm);
}

.submenu-item:hover {
  color: var(--primary-color);
  background-color: rgba(var(--primary-rgb), 0.05);
}

.submenu-item.active {
  color: var(--primary-color);
  font-weight: 500;
}

.submenu-item.has-dropdown {
  padding-right: var(--spacing-lg);
}

.submenu-item.has-dropdown::after {
  content: "\f107";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  position: absolute;
  right: var(--spacing-xs);
  top: 50%;
  transform: translateY(-50%);
}

.submenu-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--background-color);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
  min-width: 200px;
  z-index: 100;
  display: none;
  padding: var(--spacing-sm) 0;
}

.submenu-item:hover .submenu-dropdown {
  display: block;
}

.submenu-dropdown-item {
  display: block;
  padding: var(--spacing-xs) var(--spacing-md);
  color: var(--text-color);
  transition: all var(--transition-fast);
}

.submenu-dropdown-item:hover {
  background-color: var(--background-alt);
  color: var(--primary-color);
}

/* Breadcrumbs */
.breadcrumbs {
  padding: var(--spacing-md) 0;
  color: var(--text-light);
  font-size: var(--font-size-sm);
}

.breadcrumbs-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.breadcrumbs-item {
  display: flex;
  align-items: center;
}

.breadcrumbs-item:not(:last-child)::after {
  content: "/";
  margin-left: var(--spacing-xs);
  color: var(--text-light);
}

.breadcrumbs-link {
  color: var(--text-light);
  transition: color var(--transition-fast);
}

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

.breadcrumbs-current {
  color: var(--primary-color);
  font-weight: 500;
}

/* Quick Links */
.quick-links {
  position: fixed;
  right: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  z-index: 90;
}

.quick-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--background-color);
  color: var(--primary-color);
  border-radius: var(--border-radius-full);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-fast);
  position: relative;
}

.quick-link:hover {
  background-color: var(--primary-color);
  color: white;
  transform: translateY(-3px);
}

.quick-link-tooltip {
  position: absolute;
  right: 50px;
  background-color: var(--background-color);
  color: var(--text-color);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-xs);
  white-space: nowrap;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
}

.quick-link:hover .quick-link-tooltip {
  opacity: 1;
  visibility: visible;
}

/* Cải thiện footer */
.footer {
  padding-bottom: var(--spacing-md);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.footer-bottom-links {
  display: flex;
  gap: var(--spacing-md);
}

.footer-bottom-link {
  color: var(--text-light);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

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

/* Cải thiện page header */
.page-header {
  position: relative;
  height: 35vh;
  min-height: 250px;
}

/* Responsive */
@media (max-width: 768px) {
  .submenu {
    justify-content: flex-start;
    overflow-x: auto;
    padding: var(--spacing-sm) var(--spacing-md);
  }

  .quick-links {
    display: none;
  }
}

/* Dark mode */
.dark .submenu-container {
  background-color: var(--background-alt);
}

.dark .submenu-dropdown {
  background-color: var(--background-color);
  border-color: var(--border-color);
}

.dark .quick-link {
  background-color: var(--background-alt);
}