<style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }

        .containers {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-radius: 20px;
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
            width: 100%;
            max-width: 1200px;
            min-height: 600px;
            overflow: hidden;
            animation: slideIn 0.6s ease-out;
        }

        @keyframes slideIn {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .login-section {
            padding: 40px;
            text-align: center;
            background: white;
            border-radius: 20px;
            margin: 20px;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
        }

        .login-section h1 {
            color: #2c3e50;
            font-size: 2.5rem;
            margin-bottom: 10px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
        }

        .login-form {
            background: white;
            padding: 30px;
            border-radius: 15px;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
            max-width: 400px;
            margin: 0 auto 20px;
        }

        .form-group {
            margin-bottom: 25px;
            text-align: left;
        }

        .form-group label {
            display: block;
            margin-bottom: 8px;
            color: #2c3e50;
            font-weight: 600;
        }

        .form-group input {
            width: 100%;
            padding: 12px 15px;
            border: 2px solid #ddd;
            border-radius: 16px;
            font-size: 16px;
            transition: all 0.3s ease;
            background: white;
            color: #2c3e50;
        }

        .form-group input::placeholder {
            color: rgba(44, 62, 80, 0.6);
        }

        .form-group input:focus {
            outline: none;
            border-color: #667eea;
            box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
        }

        .btn {
            padding: 15px 30px;
            border: none;
            border-radius: 10px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .btn-primary {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            border: none;
            padding: 12px 30px;
            border-radius: 10px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            width: 100%;
            margin: 5px 0;
        }

        .btn-success {
            background: linear-gradient(45deg, #4ecdc4, #44a08d);
            color: white;
        }

        .btn-danger {
            background: linear-gradient(45deg, #ff6b6b, #ee5a52);
            color: white;
        }

        .btn-readonly {
            background: linear-gradient(45deg, #95a5a6, #7f8c8d);
            color: white;
        }

        .btn-primary:hover, .btn-success:hover, .btn-danger:hover, .btn-readonly:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
        }

        .dashboard {
            display: none;
            padding: 40px;
        }

        .dashboard-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 30px;
            padding-bottom: 20px;
            border-bottom: 2px solid #eee;
        }

        .dashboard-header h2 {
            color: #2c3e50;
            font-size: 2rem;
            font-weight: 300;
        }

        .user-info {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .user-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: linear-gradient(45deg, #667eea, #764ba2);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: bold;
            font-size: 18px;
        }

        .admin-badge {
            background: #28a745;
            color: white;
            padding: 4px 8px;
            border-radius: 12px;
            font-size: 12px;
            font-weight: bold;
        }

        .readonly-badge {
            background: #95a5a6;
            color: white;
            padding: 4px 8px;
            border-radius: 12px;
            font-size: 12px;
            font-weight: bold;
        }

        .logout-btn {
            padding: 10px 20px;
            background: #ff4757;
            color: white;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .logout-btn:hover {
            background: #ff3742;
            transform: translateY(-2px);
        }

        .admin-panel {
            background: #f8f9fa;
            border-radius: 15px;
            padding: 25px;
            margin-bottom: 30px;
            border: 2px solid #28a745;
        }

        .admin-panel h3 {
            color: #28a745;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .admin-form {
            display: flex;
            gap: 15px;
            margin-bottom: 15px;
            flex-wrap: wrap;
        }

        .admin-form input {
            flex: 1;
            min-width: 200px;
            padding: 12px;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-size: 14px;
        }

        .admin-form input:focus {
            outline: none;
            border-color: #28a745;
        }

        .readonly-notice {
            background: #fff3cd;
            border: 1px solid #ffeaa7;
            border-radius: 10px;
            padding: 15px;
            margin-bottom: 20px;
            color: #856404;
        }

        .readonly-notice h4 {
            margin-bottom: 10px;
            color: #856404;
        }

        .folders-container {
            background: #f8f9fa;
            border-radius: 15px;
            padding: 30px;
            min-height: 400px;
        }

        .folders-header {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 25px;
        }

        .drive-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(45deg, #4285f4, #34a853);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: bold;
        }

        .folders-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 20px;
        }

        .folder-card {
            background: white;
            border-radius: 12px;
            padding: 20px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
            border: 2px solid transparent;
        }

        .folder-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
            border-color: #667eea;
        }

        .folder-card h4 {
            color: #333;
            margin-bottom: 10px;
            font-size: 1.2rem;
        }

        .folder-card p {
            color: #666;
            font-size: 0.9rem;
            margin-bottom: 15px;
        }

        .folder-actions {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .btn-small {
            padding: 8px 16px;
            font-size: 14px;
            border-radius: 6px;
        }

        .modal {
            display: none;
            position: fixed;
            z-index: 1000;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.5);
            backdrop-filter: blur(5px);
        }

        .modal-content {
            background-color: white;
            margin: 5% auto;
            padding: 30px;
            border-radius: 15px;
            width: 90%;
            max-width: 900px;
            max-height: 85vh;
            overflow-y: auto;
        }

        .modal-content h3 {
            margin-bottom: 20px;
            color: #333;
        }

        .close {
            color: #aaa;
            float: right;
            font-size: 28px;
            font-weight: bold;
            cursor: pointer;
            margin-top: -10px;
        }

        .close:hover {
            color: #000;
        }

        .drive-embed {
            width: 100%;
            height: 600px;
            border: none;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }

        .empty-state {
            text-align: center;
            padding: 60px 20px;
            color: #666;
        }

        .empty-state h3 {
            margin-bottom: 15px;
            color: #999;
        }

        .error-message {
            color: #ff4757;
            margin-top: 15px;
            padding: 10px;
            background: rgba(255, 71, 87, 0.1);
            border-radius: 8px;
            display: none;
        }

        .success-message {
            color: #28a745;
            margin-top: 15px;
            padding: 10px;
            background: rgba(40, 167, 69, 0.1);
            border-radius: 8px;
            display: none;
        }

        .loading {
            text-align: center;
            padding: 20px;
            color: #666;
        }

        .stats-card {
            background: white;
            border-radius: 10px;
            padding: 15px;
            margin: 10px 0;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
        }

        @media (max-width: 768px) {
            .containers {
                margin: 10px;
                max-width: none;
            }
            
            .login-section {
                padding: 20px;
                margin: 10px;
            }
            
            .dashboard {
                padding: 20px;
            }
            
            .dashboard-header {
                flex-direction: column;
                gap: 15px;
                text-align: center;
            }

            .admin-form {
                flex-direction: column;
            }

            .folders-grid {
                grid-template-columns: 1fr;
            }

            .folder-actions {
                justify-content: center;
            }

            .modal-content {
                margin: 10% auto;
                width: 95%;
                padding: 20px;
            }

            .drive-embed {
                height: 400px;
            }
        }
    </style>