/* CSS styles for the stopwatch */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.stopwatch-container {
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    text-align: center;
    min-width: 300px;
}

h1 {
    color: #333;
    margin-bottom: 30px;
    font-size: 28px;
    font-weight: 600;
}

.display {
    background: #f0f0f0;
    border-radius: 15px;
    padding: 30px;
    margin-bottom: 30px;
    font-size: 48px;
    font-weight: bold;
    color: #4c63c9;
    font-family: 'Courier New', monospace;
    letter-spacing: 2px;
    border: 3px solid #667eea;
}

.controls {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

button {
    padding: 12px 30px;
    font-size: 16px;
    font-weight: 600;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

#startBtn {
    background: #667eea;
    color: #000000;
    flex: 1;
    min-width: 100px;
}

#startBtn:hover:not(:disabled) {
    background: #5568d3;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.4);
}

#startBtn:active:not(:disabled) {
    transform: translateY(0);
}

#resetBtn {
    background: #f0506e;
    color: white;
    flex: 1;
    min-width: 100px;
}

#resetBtn:hover {
    background: #d4415a;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(240, 80, 110, 0.4);
}

#resetBtn:active {
    transform: translateY(0);
}

#lapBtn {
    background: #48bb78;
    color: white;
    flex: 1;
    min-width: 100px;
}

#lapBtn:hover:not(:disabled) {
    background: #38a169;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(72, 187, 120, 0.4);
}

#lapBtn:active:not(:disabled) {
    transform: translateY(0);
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.laps-container {
    margin-top: 30px;
    max-height: 200px;
    overflow-y: auto;
    border-top: 2px solid #eee;
    padding-top: 20px;
}

.laps-container h3 {
    color: #333;
    margin-bottom: 15px;
    font-size: 16px;
}

.lap-item {
    display: flex;
    justify-content: space-between;
    padding: 10px;
    background: #f9f9f9;
    border-radius: 8px;
    margin-bottom: 8px;
    color: #666;
    font-family: 'Courier New', monospace;
}

.lap-number {
    font-weight: bold;
    color: #667eea;
}

.lap-time {
    font-weight: 600;
}

.laps-container::-webkit-scrollbar {
    width: 6px;
}

.laps-container::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

.laps-container::-webkit-scrollbar-thumb {
    background: #667eea;
    border-radius: 10px;
}

.laps-container::-webkit-scrollbar-thumb:hover {
    background: #5568d3;
}