* {
            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: 1200px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.95);
            border-radius: 20px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
            overflow: hidden;
        }

        .header {
            background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
            color: white;
            padding: 2rem;
            text-align: center;
        }

        .header h1 {
            font-size: 2.5rem;
            margin-bottom: 0.5rem;
            font-weight: 700;
        }

        .stats {
            display: flex;
            justify-content: space-around;
            margin-top: 1rem;
            flex-wrap: wrap;
            gap: 1rem;
        }

        .stat-card {
            background: rgba(255, 255, 255, 0.2);
            padding: 1rem;
            border-radius: 10px;
            backdrop-filter: blur(10px);
            flex: 1;
            min-width: 120px;
            text-align: center;
        }

        .stat-number {
            font-size: 2rem;
            font-weight: bold;
            margin-bottom: 0.25rem;
        }

        .controls {
            padding: 2rem;
            background: #f8fafc;
            border-bottom: 1px solid #e2e8f0;
        }

        .controls-row {
            display: flex;
            gap: 1rem;
            align-items: center;
            flex-wrap: wrap;
            margin-bottom: 1rem;
        }

        .btn {
            background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
            color: white;
            border: none;
            padding: 0.75rem 1.5rem;
            border-radius: 10px;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
        }

        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(79, 70, 229, 0.4);
        }

        .btn-secondary {
            background: linear-gradient(135deg, #64748b 0%, #475569 100%);
            box-shadow: 0 4px 15px rgba(100, 116, 139, 0.3);
        }

        .btn-danger {
            background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
            box-shadow: 0 4px 15px rgba(239, 68, 68, 0.3);
        }

        .filter-group {
            display: flex;
            gap: 0.5rem;
            align-items: center;
        }

        select, input {
            padding: 0.5rem 1rem;
            border: 2px solid #e2e8f0;
            border-radius: 8px;
            font-size: 1rem;
            transition: all 0.3s ease;
        }

        select:focus, input:focus {
            outline: none;
            border-color: #4f46e5;
            box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
        }

        .tasks-container {
            padding: 2rem;
        }

        .task-grid {
            display: grid;
            gap: 1rem;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
        }

        .task-card {
            background: white;
            border-radius: 15px;
            padding: 1.5rem;
            border-left: 5px solid #4f46e5;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
        }

        .task-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
        }

        .task-card.priority-high {
            border-left-color: #ef4444;
        }

        .task-card.priority-medium {
            border-left-color: #f59e0b;
        }

        .task-card.priority-low {
            border-left-color: #10b981;
        }

        .task-header {
            display: flex;
            justify-content: space-between;
            align-items: start;
            margin-bottom: 1rem;
        }

        .task-title {
            font-size: 1.25rem;
            font-weight: 600;
            color: #1e293b;
            margin-bottom: 0.5rem;
        }

        .task-meta {
            display: flex;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }

        .badge {
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            font-size: 0.875rem;
            font-weight: 500;
        }

        .badge.status-pending {
            background: #fef3c7;
            color: #d97706;
        }

        .badge.status-in_progress {
            background: #dbeafe;
            color: #2563eb;
        }

        .badge.status-completed {
            background: #d1fae5;
            color: #059669;
        }

        .badge.priority-high {
            background: #fee2e2;
            color: #dc2626;
        }

        .badge.priority-medium {
            background: #fef3c7;
            color: #d97706;
        }

        .badge.priority-low {
            background: #d1fae5;
            color: #059669;
        }

        .task-description {
            color: #64748b;
            margin-bottom: 1rem;
            line-height: 1.6;
        }

        .task-actions {
            display: flex;
            gap: 0.5rem;
        }

        .btn-small {
            padding: 0.375rem 0.75rem;
            font-size: 0.875rem;
        }

        .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: 2rem;
            border-radius: 20px;
            width: 90%;
            max-width: 500px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
        }

        .modal-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 2rem;
        }

        .modal-title {
            font-size: 1.5rem;
            font-weight: 600;
            color: #1e293b;
        }

        .close {
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: #64748b;
        }

        .form-group {
            margin-bottom: 1.5rem;
        }

        .form-label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 500;
            color: #374151;
        }

        .form-input {
            width: 100%;
            padding: 0.75rem;
            border: 2px solid #e2e8f0;
            border-radius: 8px;
            font-size: 1rem;
            transition: all 0.3s ease;
        }

        .form-input:focus {
            outline: none;
            border-color: #4f46e5;
            box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
        }

        textarea.form-input {
            resize: vertical;
            min-height: 100px;
        }

        .form-actions {
            display: flex;
            gap: 1rem;
            justify-content: flex-end;
        }

        .empty-state {
            text-align: center;
            padding: 4rem 2rem;
            color: #64748b;
        }

        .empty-state-icon {
            font-size: 4rem;
            margin-bottom: 1rem;
        }

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

            .header {
                padding: 1.5rem;
            }

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

            .controls-row {
                flex-direction: column;
                align-items: stretch;
            }

            .task-grid {
                grid-template-columns: 1fr;
            }

            .modal-content {
                width: 95%;
                margin: 10% auto;
            }
        }