* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #2a2a2a, #121212);
    color: #f0f0f0;
}

.container {
    background: rgba(255, 255, 255, 0.05);
    padding: 40px 60px;
    border-radius: 24px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

h1 {
    font-size: 1.5rem;
    color: #999999;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.timer-display {
    font-size: 6rem;
    font-weight: 800;
    margin-bottom: 30px;
    color: #e0e0e0;
}

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

 button {
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    background-color: #333333;
    color: white;
    transition: all 0.3s ease;
 }

 button:hover {
    background-color: #444444;
    transform: translate(-2px);
 }

 #start {
    background-color: #555555;
 }

 #start:hover {
    background-color: #666666;
 }