*{margin:0;padding:0;box-sizing:border-box}body{font-family:Arial,sans-serif;line-height:1.6;padding:20px;background-color:#f0f2f5}.container{max-width:800px;margin:0 auto}h1{text-align:center;margin-bottom:20px;color:#333}.add-button{display:block;margin:20px auto;padding:10px 20px;background-color:#4caf50;color:#fff;border:none;border-radius:5px;cursor:pointer;font-size:16px}.add-button:hover{background-color:#45a049}.timers-container{display:grid;gap:20px;grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}.timer{background:#fff;padding:20px;border-radius:10px;box-shadow:0 2px 5px #0000001a;position:relative}.timer-header{display:flex;align-items:center;margin-bottom:15px}.status-indicator{width:12px;height:12px;border-radius:50%;background-color:#ccc;margin-right:10px;transition:background-color .3s ease}.status-indicator.active{background-color:#4caf50}.timer-name{flex-grow:1;padding:5px;border:1px solid #ddd;border-radius:4px;font-size:16px}.timer-display{font-size:2em;text-align:center;margin:15px 0;font-family:monospace}.timer-controls{display:flex;gap:10px;justify-content:center}.timer-button{padding:8px 16px;border:none;border-radius:4px;cursor:pointer;font-size:14px;transition:background-color .3s ease}.start-button{background-color:#4caf50;color:#fff}.start-button:hover{background-color:#45a049}.pause-button{background-color:#f44336;color:#fff}.pause-button:hover{background-color:#da190b}.delete-button{position:absolute;top:10px;right:10px;background:none;border:none;color:#666;cursor:pointer;font-size:18px}.delete-button:hover{color:#f44336}