.encrypt-container {
            max-width: 900px;
            margin: 0 auto;
        }
        .mode-toggle {
            display: flex;
            gap: 0.5rem;
            margin-bottom: 2rem;
            background: var(--bg-secondary);
            padding: 0.5rem;
            border-radius: 0.75rem;
        }
        .mode-toggle-btn {
            flex: 1;
            padding: 0.75rem 1.5rem;
            background: transparent;
            border: 2px solid transparent;
            border-radius: 0.5rem;
            color: var(--text-secondary);
            font-family: 'Play', sans-serif;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s;
        }
        .mode-toggle-btn.active {
            background: var(--accent-primary);
            color: white;
            border-color: var(--accent-primary);
        }
        .mode-toggle-btn:hover:not(.active) {
            background: var(--bg-primary);
            color: var(--text-primary);
        }
        .input-section, .output-section {
            background: var(--bg-secondary);
            border-radius: 0.75rem;
            padding: 1.5rem;
            margin-bottom: 1.5rem;
        }
        .input-section h3, .output-section h3 {
            margin-top: 0;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }
        .input-tabs {
            display: flex;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }
        .input-tab {
            padding: 0.5rem 1rem;
            background: var(--bg-primary);
            border: 1px solid var(--border-color);
            border-radius: 0.5rem;
            color: var(--text-secondary);
            cursor: pointer;
            font-size: 0.9rem;
            transition: all 0.2s;
        }
        .input-tab.active {
            background: var(--accent-primary);
            color: white;
            border-color: var(--accent-primary);
        }
        .input-area {
            display: none;
        }
        .input-area.active {
            display: block;
        }
        textarea.input-field {
            width: 100%;
            min-height: 150px;
            padding: 1rem;
            border: 1px solid var(--border-color);
            border-radius: 0.5rem;
            background: var(--bg-primary);
            color: var(--text-primary);
            font-family: monospace;
            font-size: 0.9rem;
            resize: vertical;
            box-sizing: border-box;
        }
        .file-upload-area {
            border: 2px dashed var(--border-color);
            border-radius: 0.5rem;
            padding: 2rem;
            text-align: center;
            cursor: pointer;
            transition: all 0.2s;
            background: var(--bg-primary);
        }
        .file-upload-area:hover {
            border-color: var(--accent-primary);
            background: var(--bg-secondary);
        }
        .file-upload-area.dragover {
            border-color: var(--accent-primary);
            background: rgba(250, 56, 0, 0.1);
        }
        .file-info {
            margin-top: 1rem;
            padding: 0.75rem;
            background: var(--bg-primary);
            border-radius: 0.5rem;
            font-size: 0.9rem;
            color: var(--text-secondary);
        }
        .config-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1rem;
            margin-bottom: 1.5rem;
        }
        .config-item {
            display: flex;
            flex-direction: column;
        }
        .config-item label {
            margin-bottom: 0.5rem;
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 600;
        }
        .config-item select,
        .config-item input {
            padding: 0.75rem;
            border: 1px solid var(--border-color);
            border-radius: 0.5rem;
            background: var(--bg-primary);
            color: var(--text-primary);
            font-family: 'Play', sans-serif;
        }
        .security-warning {
            padding: 1rem;
            background: rgba(255, 193, 7, 0.15);
            border-left: 4px solid #ffc107;
            border-radius: 0.5rem;
            margin-bottom: 1rem;
            font-size: 0.9rem;
            color: var(--text-primary);
        }
        .security-warning strong {
            color: #ffc107;
        }
        .action-buttons {
            display: flex;
            gap: 1rem;
            margin-top: 1.5rem;
        }
        .output-result {
            margin-top: 1rem;
            padding: 1rem;
            background: var(--bg-primary);
            border-radius: 0.5rem;
            border: 1px solid var(--border-color);
            word-break: break-all;
            font-family: monospace;
            font-size: 0.9rem;
            color: var(--text-primary);
            max-height: 300px;
            overflow-y: auto;
            white-space: pre-wrap;
        }
        .output-actions {
            display: flex;
            gap: 0.5rem;
            margin-top: 1rem;
        }
        .btn-copy {
            padding: 0.5rem 1rem;
            background: var(--bg-primary);
            border: 1px solid var(--border-color);
            border-radius: 0.5rem;
            color: var(--text-primary);
            cursor: pointer;
            font-size: 0.9rem;
            transition: all 0.2s;
        }
        .btn-copy:hover {
            background: var(--accent-primary);
            color: white;
            border-color: var(--accent-primary);
        }
        .algorithm-info {
            margin-top: 1rem;
            padding: 1rem;
            background: var(--bg-primary);
            border-radius: 0.5rem;
            font-size: 0.85rem;
            color: var(--text-secondary);
        }
        @media (max-width: 768px) {
            .config-grid {
                grid-template-columns: 1fr;
            }
            .action-buttons {
                flex-direction: column;
            }
        }