body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    margin: 0;
    color: #fff;
}

.stopwatch-container {
    text-align: center;
    background-color: rgba(255, 255, 255, 0.1);
    padding: 20px; 
    border-radius: 15px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    max-width: 300px; 
    width: 90%; 
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: #fff;
}

.display {
    font-size: 3rem;
    margin: 20px 0;
    font-weight: bold;
    color: #fff;
}

.controls button {
    font-size: 1rem;
    padding: 10px 20px;
    margin: 5px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    background-color: #4CAF50;
    color: white;
    transition: background-color 0.3s ease;
}

.controls button:hover {
    background-color: #45a049;
}

#lap {
    background-color: #2196F3;
}

#lap:hover {
    background-color: #1e88e5;
}

#reset {
    background-color: #f44336;
}

#reset:hover {
    background-color: #e53935;
}

.laps {
    margin-top: 20px;
    max-height: 200px;
    overflow-y: auto;
}

.laps h2 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: #fff;
}

.laps ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
}

.laps ul li {
    padding: 10px;
    background-color: rgba(255, 255, 255, 0.1);
    margin: 5px 0;
    border-radius: 5px;
    color: #fff;
}