*{margin:0;padding:0;box-sizing:border-box}body{font-family:ui-sans-serif,system-ui,sans-serif;line-height:1.6;color:#333;background-color:#f5f5f5}.container{max-width:800px;margin:0 auto;padding:20px}.header{text-align:center;margin-bottom:40px;padding:20px;background:#fff;border-radius:8px;box-shadow:0 2px 4px #0000001a}.header h1{color:#2c3e50;margin-bottom:10px;font-size:2.5rem}.header p{color:#7f8c8d;font-size:1.1rem}.todo-form-container{background:#fff;padding:30px;border-radius:8px;box-shadow:0 2px 4px #0000001a;margin-bottom:30px}.todo-form-container h2{margin-bottom:20px;color:#2c3e50}.todo-form{display:flex;flex-direction:column;gap:20px}.form-group{display:flex;flex-direction:column}.form-group label{margin-bottom:5px;font-weight:600;color:#555}.form-group input,.form-group textarea{padding:12px;border:2px solid #e1e8ed;border-radius:6px;font-size:16px;transition:border-color .3s ease}.form-group input:focus,.form-group textarea:focus{outline:none;border-color:#3498db}.btn{padding:12px 24px;border:none;border-radius:6px;font-size:16px;font-weight:600;cursor:pointer;transition:all .3s ease;text-decoration:none;display:inline-block;text-align:center}.btn-primary{background-color:#3498db;color:#fff}.btn-primary:hover{background-color:#2980b9}.btn-secondary{background-color:#95a5a6;color:#fff}.btn-secondary:hover{background-color:#7f8c8d}.btn-sm{padding:6px 12px;font-size:14px}.btn-toggle{background-color:#27ae60;color:#fff;min-width:32px}.btn-toggle:hover{background-color:#229954}.btn-edit{background-color:#f39c12;color:#fff}.btn-edit:hover{background-color:#e67e22}.btn-delete{background-color:#e74c3c;color:#fff}.btn-delete:hover{background-color:#c0392b}.todo-list-container{background:#fff;padding:30px;border-radius:8px;box-shadow:0 2px 4px #0000001a}.todo-list-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;padding-bottom:15px;border-bottom:2px solid #ecf0f1}.todo-list-header h2{color:#2c3e50;margin:0}.todo-stats{display:flex;gap:20px}.todo-stats span{padding:6px 12px;background-color:#ecf0f1;border-radius:20px;font-size:14px;font-weight:600;color:#555}.todo-list{display:flex;flex-direction:column;gap:15px}.todo-item{border:2px solid #e1e8ed;border-radius:8px;padding:20px;background:#fafafa;transition:all .3s ease}.todo-item:hover{border-color:#3498db;background:#fff}.todo-item.completed{border-color:#27ae60;background:#f8fff8}.todo-item.completed .todo-title{text-decoration:line-through;color:#7f8c8d}.todo-content{width:100%}.todo-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:10px}.todo-title{margin:0 15px 0 0;color:#2c3e50;font-size:1.2rem;flex:1}.todo-actions{display:flex;gap:8px;flex-shrink:0}.todo-description{margin:10px 0;color:#555;line-height:1.5}.todo-meta{display:flex;justify-content:space-between;align-items:center;margin-top:15px;padding-top:10px;border-top:1px solid #e1e8ed;font-size:14px}.todo-date{color:#7f8c8d}.todo-status{padding:4px 12px;border-radius:12px;font-weight:600;font-size:12px;text-transform:uppercase}.todo-status.completed{background-color:#d5f4e6;color:#27ae60}.todo-status.pending{background-color:#fef9e7;color:#f39c12}.empty-state{text-align:center;padding:40px 20px;color:#7f8c8d}.empty-state p{font-size:1.1rem}.loading{text-align:center;padding:20px;color:#7f8c8d;font-style:italic}.error-message{background-color:#f8d7da;color:#721c24;padding:12px 16px;border-radius:6px;margin-bottom:20px;border:1px solid #f5c6cb}.success-message{background-color:#d4edda;color:#155724;padding:12px 16px;border-radius:6px;margin-bottom:20px;border:1px solid #c3e6cb}.edit-form-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#00000080;display:flex;justify-content:center;align-items:center;z-index:1000}.edit-form-container{background:#fff;padding:30px;border-radius:8px;box-shadow:0 4px 20px #0000004d;width:90%;max-width:500px;max-height:90vh;overflow-y:auto}.edit-form-container h3{margin-bottom:20px;color:#2c3e50}.form-actions{display:flex;gap:15px;justify-content:flex-end;margin-top:20px}@media (max-width: 768px){.container{padding:10px}.header h1{font-size:2rem}.todo-form-container,.todo-list-container{padding:20px}.todo-header{flex-direction:column;align-items:flex-start;gap:10px}.todo-actions{align-self:flex-end}.todo-meta{flex-direction:column;align-items:flex-start;gap:5px}.todo-stats{flex-direction:column;gap:10px}.form-actions{flex-direction:column}.edit-form-container{padding:20px;margin:20px}}