:root{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;line-height:1.5;font-weight:400;color-scheme:light;color:#213547;background-color:#fff;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh}#root{width:100%;min-height:100vh}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}.todo-app{width:100%;max-width:500px}.todo-container{background:#fff;border-radius:16px;box-shadow:0 20px 40px #0000001a;overflow:hidden;min-height:400px}.todo-title{text-align:center;padding:32px 24px 24px;font-size:2.5rem;font-weight:300;color:#2c3e50;background:linear-gradient(135deg,#f5f7fa,#c3cfe2);margin:0;letter-spacing:-.5px}.error-message{background:#fee;color:#c33;padding:12px 24px;border-left:4px solid #c33;margin:0 24px 16px;border-radius:4px;font-size:.9rem}.todo-input-container{display:flex;padding:0 24px 24px;gap:12px;align-items:center}.todo-input{flex:1;padding:16px 20px;border:2px solid #e1e8ed;border-radius:12px;font-size:1rem;outline:none;transition:all .3s ease;background:#fafbfc}.todo-input:focus{border-color:#667eea;background:#fff;box-shadow:0 0 0 3px #667eea1a}.todo-input:disabled{opacity:.6;cursor:not-allowed}.add-button{padding:16px;background:#667eea;color:#fff;border:none;border-radius:12px;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;justify-content:center;min-width:52px}.add-button:hover:not(:disabled){background:#5a6fd8;transform:translateY(-1px);box-shadow:0 4px 12px #667eea4d}.add-button:disabled{opacity:.5;cursor:not-allowed;transform:none}.todo-list{min-height:200px}.loading{text-align:center;padding:60px 24px;color:#8e9aaf;font-size:1.1rem}.no-todos{text-align:center;padding:60px 24px;color:#8e9aaf;font-size:1.1rem;font-style:italic}.todo-item{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;border-bottom:1px solid #f0f3f7;transition:all .2s ease;group:hover}.todo-item:hover{background:#f8fafc}.todo-item:last-child{border-bottom:none}.todo-text{flex:1;font-size:1rem;color:#2c3e50;line-height:1.5}.delete-button{background:none;border:none;color:#e74c3c;cursor:pointer;padding:8px;border-radius:8px;transition:all .2s ease;opacity:0;transform:translate(10px);display:flex;align-items:center;justify-content:center}.todo-item:hover .delete-button{opacity:1;transform:translate(0)}.delete-button:hover:not(:disabled){background:#fee;color:#c0392b;transform:scale(1.1)}.delete-button:disabled{opacity:.3;cursor:not-allowed}.todo-footer{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;background:#f8fafc;border-top:1px solid #e1e8ed;margin-top:8px}.todo-count{color:#8e9aaf;font-size:.9rem;font-weight:500}.clear-all-button{background:none;border:1px solid #e74c3c;color:#e74c3c;padding:8px 16px;border-radius:8px;cursor:pointer;font-size:.85rem;font-weight:500;transition:all .2s ease}.clear-all-button:hover:not(:disabled){background:#e74c3c;color:#fff;transform:translateY(-1px);box-shadow:0 2px 8px #e74c3c4d}.clear-all-button:disabled{opacity:.5;cursor:not-allowed;transform:none}@media (max-width: 600px){.todo-title{font-size:2rem;padding:24px 20px 20px}.todo-input-container{padding:0 20px 20px}.todo-item{padding:14px 20px}.todo-footer{padding:16px 20px;flex-direction:column;gap:12px;align-items:stretch}.clear-all-button{width:100%;justify-content:center}}