/* Lakes Tutoring - Secure Vault Styles */
#admin-vault .vault-wrapper {
    display: flex;
    gap: 1.5rem;
    background-color: #fff;
    padding: 1.5rem;
    border-radius: 8px;
    min-height: 70vh;
    border: 1px solid #e3e6f0;
}

#admin-vault .vault-folders {
    width: 280px;
    flex-shrink: 0;
    border-right: 1px solid #e3e6f0;
    padding-right: 1.5rem;
}

#admin-vault .vault-files {
    flex-grow: 1;
}

/* Folder Tree */
.folder-tree, .folder-tree ul {
    list-style: none;
    padding-left: 0;
}
.folder-tree ul {
    padding-left: 20px;
}
.folder-item .folder-name {
    display: flex;
    align-items: center;
    padding: 8px 12px;
    cursor: pointer;
    border-radius: 6px;
    transition: background-color 0.2s;
}
.folder-item .folder-name:hover {
    background-color: #f8f9fa;
}
.folder-item.active > .folder-name {
    background-color: #e9f2ff;
    font-weight: 600;
    color: #003366;
}
.folder-name i {
    margin-right: 10px;
    color: #798eb3;
}
.folder-item.active > .folder-name i {
    color: #005A9C;
}

/* File List */
.file-list-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 1rem;
}
.file-item {
    text-align: center;
    padding: 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.2s, box-shadow 0.2s;
    word-break: break-word;
}
.file-item:hover {
    background-color: #f8f9fa;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}
.file-item .file-icon {
    font-size: 3rem;
    margin-bottom: 0.5rem;
    color: #798eb3;
}
.file-item .file-name {
    font-size: 0.8rem;
    font-weight: 500;
}

/* Drag & Drop Ghosting */
.sortable-ghost {
    opacity: 0.4;
    background-color: #c8ebfb !important;
}
.sortable-drag {
    opacity: 1 !important;
}