:root {
            --background: #1d1822;
            --surfacePrimary: #38323d;
            --surfaceSecondary: #47404f;
            --divider: rgba(255, 255, 255, 0.12);
            --icon: #ffffff;
            --textPrimary: rgba(255, 255, 255, 0.87);
            --textSecondary: rgba(255, 255, 255, 0.6);
            --primary-color: #ffffff;
            --bg-color: #1a1424;
            --hover-color: #221c2c;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: var(--background);
            color: var(--textPrimary);
            line-height: 1.6;
            min-height: 100vh;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
        }

        /* Header Styles */
        header {
            background-color: var(--surfacePrimary);
            padding: 15px 20px;
            border-bottom: 1px solid var(--divider);
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-radius: 8px 8px 0 0;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .logo h1 {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--textPrimary);
        }

        .logo-icon {
            color: var(--icon);
            font-size: 1.8rem;
        }

        nav ul {
            display: flex;
            list-style: none;
            gap: 20px;
        }

        nav a {
            color: var(--textSecondary);
            text-decoration: none;
            transition: color 0.3s;
            font-weight: 500;
        }

        nav a:hover {
            color: var(--icon);
        }

        .user-actions {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .btn {
            padding: 8px 16px;
            border-radius: 8px;
            border: none;
            cursor: pointer;
            font-weight: 500;
            transition: all 0.3s;
        }

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

        .btn-primary:hover {
            background-color: #b69cea;
            transform: translateY(-2px);
        }

        .btn-outline {
            background-color: transparent;
            border: 1px solid var(--divider);
            color: var(--textPrimary);
        }

        .btn-outline:hover {
            border-color: var(--primary-color);
            color: var(--primary-color);
        }

        /* Main Content */
        .main-content {
            display: grid;
            grid-template-columns: 250px 1fr;
            gap: 20px;
            margin-top: 20px;
        }

        /* Sidebar */
        .sidebar {
            background-color: var(--surfaceSecondary);
            border-radius: 8px;
            padding: 20px;
            height: fit-content;
        }

        .sidebar h3 {
            margin-bottom: 15px;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--divider);
            color: var(--textPrimary);
        }

        .sidebar ul {
            list-style: none;
        }

        .sidebar li {
            margin-bottom: 10px;
        }

        .sidebar a {
            color: var(--textSecondary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 5px;
            border-radius: 8px;
            transition: all 0.3s;
        }

        .sidebar a:hover {
            background-color: var(--hover-color);
            color: var(--textPrimary);
        }

        .sidebar-icon {
            color: var(--icon);
        }

        /* File Browser Content */
        .content {
            background-color: var(--surfacePrimary);
            border-radius: 8px;
            padding: 20px;
        }

        .content-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--textSecondary);
        }

        .breadcrumb a {
            color: var(--textSecondary);
            text-decoration: none;
        }

        .breadcrumb a:hover {
            color: var(--primary-color);
        }

        .actions {
            display: flex;
            gap: 10px;
        }

        /* File List */
        .file-list {
            background-color: var(--surfaceSecondary);
            border-radius: 8px;
            overflow: hidden;
        }

        .file-list-header {
            display: grid;
            grid-template-columns: 3fr 1fr 1fr 1fr;
            padding: 15px 20px;
            background-color: var(--hover-color);
            font-weight: 600;
            color: var(--textPrimary);
        }

        .file-item {
            display: grid;
            grid-template-columns: 3fr 1fr 1fr 1fr;
            padding: 15px 20px;
            border-bottom: 1px solid var(--divider);
            transition: background-color 0.3s;
        }

        .file-item:hover {
            background-color: var(--hover-color);
        }

        .file-item:last-child {
            border-bottom: none;
        }

        .file-name {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .file-icon {
            color: var(--icon);
        }

        .file-action {
            color: var(--textSecondary);
            margin-left: 15px;
            cursor: pointer;
            transition: color 0.3s;
        }

        .file-action:hover {
            color: var(--primary-color);
        }

        /* File details */
        .permissions, .modified, .size {
            color: var(--textSecondary);
        }

        /* Footer */
        footer {
            margin-top: 30px;
            text-align: center;
            color: var(--textSecondary);
            padding: 20px;
            border-top: 1px solid var(--divider);
        }

        /* Inputs */
        .input {
            background-color: var(--surfaceSecondary);
            border: 1px solid var(--divider);
            color: var(--textPrimary);
            padding: 10px;
            border-radius: 8px;
            width: 100%;
        }

        .input::placeholder {
            color: var(--textSecondary);
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .main-content {
                grid-template-columns: 1fr;
            }
            
            .file-list-header, .file-item {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            
            nav ul {
                display: none;
            }
        }