.drive-main {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  position: relative;
  min-height: 100vh;
}

.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--overlay-bg);
  z-index: 99;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.sidebar-overlay.show {
  display: block;
  opacity: 1;
}

.hamburger-btn {
  display: none;
  padding: 10px;
  color: var(--text-secondary);
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
  margin-right: 8px;
}

.hamburger-btn:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.drive-header {
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: 1;
}

.header-left h1 {
  font-size: 18px;
  font-weight: 600;
}

.search-box {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  max-width: 400px;
  flex: 1;
  transition: all var(--transition-fast);
}

.search-box:focus-within {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.search-box i {
  color: var(--text-muted);
}

.search-box input {
  flex: 1;
}

.search-box input::placeholder {
  color: var(--text-muted);
}

.search-clear {
  padding: 4px;
  color: var(--text-muted);
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.search-clear:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.search-clear.hidden {
  display: none;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.view-toggle {
  display: flex;
  background: var(--bg-tertiary);
  border-radius: var(--border-radius);
  padding: 2px;
}

.view-btn {
  padding: 8px 12px;
  color: var(--text-muted);
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
}

.view-btn:hover {
  color: var(--text-primary);
}

.view-btn.active {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.user-avatar-small {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-primary);
  color: white;
  font-weight: 600;
  font-size: 13px;
  border-radius: 50%;
}

.header-btn {
  padding: 10px;
  color: var(--text-muted);
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
}

.header-btn:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.breadcrumb-toolbar-row {
  display: flex;
  align-items: center;
  padding: 8px 24px;
  gap: 16px;
  border-bottom: 1px solid var(--border-color);
}

.breadcrumb-toolbar-row .breadcrumb {
  flex: 1;
  min-width: 0;
  padding: 8px 0;
  border-bottom: none;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.breadcrumb-toolbar-row .breadcrumb::-webkit-scrollbar {
  display: none;
}

.breadcrumb-toolbar-row .toolbar {
  flex: 0 0 auto;
  padding: 0;
  border-bottom: none;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 16px 24px;
  font-size: 13px;
}

.breadcrumb-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  color: var(--text-secondary);
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
}

.breadcrumb-item:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.breadcrumb-item.current {
  color: var(--text-primary);
  font-weight: 500;
}

.breadcrumb-separator {
  color: var(--text-muted);
  font-size: 10px;
}

.breadcrumb-actions {
  margin-left: auto;
}

.breadcrumb-item.drop-target {
  position: relative;
}

.breadcrumb-item.drop-target::after {
  content: "";
  position: absolute;
  inset: -4px;
  border: 2px dashed var(--accent-primary);
  border-radius: var(--border-radius-sm);
  pointer-events: none;
  opacity: 0.5;
}

.breadcrumb-item.drop-over {
  background: rgba(59, 130, 246, 0.2);
}

.breadcrumb-item.drop-over::after {
  opacity: 1;
  border-style: solid;
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 24px;
  border-bottom: 1px solid var(--border-color);
}

.toolbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.toolbar-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  color: var(--text-secondary);
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
}

.toolbar-btn:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.toolbar-info {
  font-size: 13px;
  color: var(--text-muted);
}

.sort-dropdown {
  position: relative;
}

.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 4px;
  min-width: 180px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  z-index: 100;
  overflow: hidden;
}

.dropdown-menu.show {
  display: block;
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.dropdown-item:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.dropdown-item.active {
  color: var(--accent-primary);
}

.dropdown-item i {
  width: 16px;
}

.context-menu {
  display: none;
  position: fixed;
  min-width: 240px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  overflow: hidden;
}

.context-menu.show {
  display: block;
}

.context-menu-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  color: var(--text-primary);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.context-menu-item:hover {
  background: var(--bg-hover);
}

.context-menu-item i {
  width: 16px;
  color: var(--text-secondary);
}

.context-menu-item.danger {
  color: var(--danger);
}

.context-menu-item.danger i {
  color: var(--danger);
}

.context-menu-divider {
  height: 1px;
  background: var(--border-color);
  margin: 4px 0;
}

.drop-zone-overlay {
  display: none;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(59, 130, 246, 0.1);
  border: 3px dashed var(--accent-primary);
  border-radius: var(--border-radius-lg);
  z-index: 100;
  align-items: center;
  justify-content: center;
  margin: 12px;
  animation: dropZonePulse 1.5s ease-in-out infinite;
}

.drop-zone-overlay.show {
  display: flex;
}

.drop-zone-content {
  text-align: center;
  color: var(--accent-primary);
  animation: dropZoneBounce 0.5s ease;
}

.drop-zone-content i {
  font-size: 56px;
  margin-bottom: 16px;
  display: block;
}

.drop-zone-content p {
  font-size: 18px;
  font-weight: 600;
}

@keyframes dropZonePulse {
  0%,
  100% {
    border-color: var(--accent-primary);
    background: rgba(59, 130, 246, 0.1);
  }
  50% {
    border-color: var(--accent-secondary);
    background: rgba(59, 130, 246, 0.15);
  }
}

@keyframes dropZoneBounce {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

.file-list.grid-view {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
  padding-top: 16px;
}

.file-list.grid-view .file-list-header {
  display: none;
}

.file-list.grid-view .file-row {
  position: relative;
  flex-direction: column;
  padding: 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  text-align: center;
  transition: all var(--transition-fast);
}

.file-list.grid-view .file-row:hover {
  border-color: var(--border-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.file-list.grid-view .file-cell {
  width: 100%;
  justify-content: center;
}

.file-list.grid-view .file-checkbox {
  position: absolute;
  top: 10px;
  left: 10px;
  width: auto;
  opacity: 0;
  transition: all var(--transition-fast);
  z-index: 2;
}

.file-list.grid-view .file-checkbox input {
  width: 18px;
  height: 18px;
  background: rgba(var(--bg-secondary-rgb), 0.9);
  backdrop-filter: blur(4px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.file-list.grid-view .file-checkbox input:checked::after {
  left: 5px;
  top: 2px;
  width: 4px;
  height: 9px;
}

.file-list.grid-view .file-row:hover .file-checkbox {
  opacity: 1;
}

.file-list.grid-view .file-row.selected .file-checkbox {
  opacity: 1;
}

.file-list.grid-view .file-name {
  flex-direction: column;
  gap: 12px;
}

.file-list.grid-view .file-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto;
}

.file-list.grid-view .file-icon i {
  font-size: 32px;
}

.file-list.grid-view .folder-icon i {
  font-size: 48px;
}

.file-list.grid-view .file-icon.has-thumbnail {
  width: 100%;
  height: 100px;
  border-radius: var(--border-radius);
  overflow: hidden;
  background: var(--bg-tertiary);
}

.file-list.grid-view .file-icon.has-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.file-list.grid-view .file-icon.has-thumbnail i {
  display: none;
}

.file-list.grid-view .file-name-text {
  font-size: 13px;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  line-height: 1.4;
}

.file-list.grid-view .file-modified,
.file-list.grid-view .file-size {
  display: none;
}

.file-list.grid-view .file-actions {
  position: absolute;
  top: 8px;
  right: 8px;
  width: auto;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.file-list.grid-view .file-row:hover .file-actions {
  opacity: 1;
}

.file-list.grid-view .action-btn {
  opacity: 1;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
}

.file-list.grid-view .empty-state {
  grid-column: 1 / -1;
}

.action-btn {
  opacity: 0;
}

.file-row:hover .action-btn {
  opacity: 1;
}

.trash-actions .more-btn {
  display: none;
}

@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform var(--transition-normal);
    z-index: 100;
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .drive-main {
    margin-left: 0;
  }

  .hamburger-btn {
    display: flex;
  }

  .file-modified {
    display: none;
  }
}

.mobile-header,
.mobile-bottom-nav,
.mobile-fab,
.mobile-fab-menu,
.mobile-fab-backdrop,
.mobile-search-container,
.mobile-sheet-overlay {
  display: none !important;
}