* {
            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;
            padding: 20px;
        }

        .container {
            max-width: 800px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.95);
            border-radius: 20px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
            backdrop-filter: blur(10px);
            overflow: hidden;
        }

        .header {
            background: linear-gradient(135deg, #ff6b6b, #ffa726);
            color: white;
            padding: 30px;
            text-align: center;
        }

        .header h1 {
            font-size: 2.5rem;
            margin-bottom: 10px;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
        }

        .header p {
            opacity: 0.9;
            font-size: 1.1rem;
        }

        .stats {
            display: flex;
            justify-content: space-around;
            padding: 20px;
            background: rgba(255, 255, 255, 0.1);
            margin-top: 15px;
            border-radius: 10px;
        }

        .stat-item {
            text-align: center;
        }

        .stat-number {
            font-size: 1.8rem;
            font-weight: bold;
            display: block;
        }

        .stat-label {
            font-size: 0.9rem;
            opacity: 0.8;
        }

        .input-section {
            padding: 30px;
            border-bottom: 1px solid #eee;
        }

        .input-container {
            display: flex;
            gap: 15px;
            margin-bottom: 20px;
        }

        .task-input {
            flex: 1;
            padding: 15px 20px;
            border: 2px solid #e0e0e0;
            border-radius: 25px;
            font-size: 1rem;
            outline: none;
            transition: all 0.3s ease;
        }

        .task-input:focus {
            border-color: #667eea;
            box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
        }

        .priority-select {
            padding: 15px;
            border: 2px solid #e0e0e0;
            border-radius: 15px;
            background: white;
            outline: none;
            transition: all 0.3s ease;
        }

        .priority-select:focus {
            border-color: #667eea;
        }

        .add-btn {
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
            border: none;
            padding: 15px 25px;
            border-radius: 25px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
        }

        .add-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
        }

        .filters {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .filter-btn {
            padding: 8px 16px;
            border: 2px solid #e0e0e0;
            background: white;
            border-radius: 20px;
            cursor: pointer;
            transition: all 0.3s ease;
            font-size: 0.9rem;
        }

        .filter-btn.active,
        .filter-btn:hover {
            background: #667eea;
            color: white;
            border-color: #667eea;
        }

        .tasks-section {
            padding: 30px;
            min-height: 300px;
        }

        .task-item {
            background: white;
            border: 1px solid #e0e0e0;
            border-radius: 15px;
            padding: 20px;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 15px;
            transition: all 0.3s ease;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
            animation: slideIn 0.3s ease;
        }

        .footer {
            padding: 10px;
            text-align: center;
            max-width: 800px;
            background: rgba(255, 255, 255, 0.95);
            border-radius: 20px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
            backdrop-filter: blur(10px);
            overflow: hidden;
            margin-top: 15px;
        }


        @keyframes slideIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .task-item:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        }

        .task-item.completed {
            opacity: 0.7;
            background: #f8f9fa;
        }

        .task-checkbox {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            border: 2px solid #667eea;
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
        }

        .task-checkbox.checked {
            background: #667eea;
        }

        .task-checkbox.checked::after {
            content: '✓';
            color: white;
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            font-size: 12px;
        }

        .task-content {
            flex: 1;
        }

        .task-text {
            font-size: 1.1rem;
            margin-bottom: 5px;
            transition: all 0.3s ease;
        }

        .task-item.completed .task-text {
            text-decoration: line-through;
            color: #888;
        }

        .task-meta {
            display: flex;
            gap: 10px;
            align-items: center;
            font-size: 0.85rem;
            color: #666;
        }

        .priority-badge {
            padding: 3px 8px;
            border-radius: 10px;
            font-size: 0.75rem;
            font-weight: 600;
        }

        .priority-high {
            background: #ffebee;
            color: #c62828;
        }

        .priority-medium {
            background: #fff3e0;
            color: #ef6c00;
        }

        .priority-low {
            background: #e8f5e8;
            color: #2e7d32;
        }

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

        .action-btn {
            padding: 8px 12px;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            font-size: 0.85rem;
            transition: all 0.3s ease;
        }

        .edit-btn {
            background: #e3f2fd;
            color: #1976d2;
        }

        .edit-btn:hover {
            background: #1976d2;
            color: white;
        }

        .delete-btn {
            background: #ffebee;
            color: #d32f2f;
        }

        .delete-btn:hover {
            background: #d32f2f;
            color: white;
        }

        .empty-state {
            text-align: center;
            padding: 60px 20px;
            color: #666;
        }

        .empty-icon {
            font-size: 4rem;
            margin-bottom: 20px;
            opacity: 0.3;
        }

        .edit-mode {
            background: #fff3cd !important;
            border-color: #ffc107 !important;
        }

        .edit-input {
            flex: 1;
            padding: 10px;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
        }

        .save-btn {
            background: #28a745;
            color: white;
        }

        .save-btn:hover {
            background: #218838;
        }

        .cancel-btn {
            background: #6c757d;
            color: white;
        }

        .cancel-btn:hover {
            background: #5a6268;
        }

        @media (max-width: 768px) {
            .container {
                margin: 10px;
                border-radius: 15px;
            }

            .header h1 {
                font-size: 2rem;
            }

            .input-container {
                flex-direction: column;
            }

            .stats {
                flex-direction: column;
                gap: 15px;
            }

            .task-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }

            .task-actions {
                width: 100%;
                justify-content: flex-end;
            }

            .filters {
                justify-content: center;
            }
        }

        @media (max-width: 480px) {
            body {
                padding: 10px;
            }

            .header,
            .input-section,
            .tasks-section {
                padding: 20px;
            }
        }