.persistent-stopwatch {
    max-width: 400px;
    margin: 20px auto;
    padding: 20px;
    border: 2px solid #ddd;
    border-radius: 10px;
    background: #f9f9f9;
    font-family: 'Courier New', monospace;
    text-align: center;
}

.stopwatch-display {
    margin-bottom: 20px;
}

.time-display {
    font-size: 2.5em;
    font-weight: bold;
    color: #333;
    background: #fff;
    padding: 15px;
    border-radius: 5px;
    border: 1px solid #ccc;
    margin-bottom: 10px;
}

.status-display {
    font-size: 1.2em;
    color: #666;
    font-weight: bold;
}

.stopwatch-controls {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

.stopwatch-btn {
    padding: 10px 20px;
    font-size: 1em;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

.start-btn {
    background-color: #4CAF50;
    color: white;
}

.start-btn:hover {
    background-color: #45a049;
}

.pause-btn {
    background-color: #ff9800;
    color: white;
}

.pause-btn:hover {
    background-color: #e68900;
}

.stop-btn {
    background-color: #f44336;
    color: white;
}

.stop-btn:hover {
    background-color: #da190b;
}

.reset-btn {
    background-color: #2196F3;
    color: white;
}

.reset-btn:hover {
    background-color: #0b7dda;
}

@media (max-width: 480px) {
    .persistent-stopwatch {
	margin: 10px;
	padding: 15px;
    }
    
    .time-display {
	font-size: 2em;
	padding: 10px;
    }
    
    .stopwatch-controls {
	flex-direction: column;
    }
    
    .stopwatch-btn {
	width: 100%;
	margin: 5px 0;
    }
}