body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #111;
    color: #eee;
}

main {
    max-width: 900px;
    margin: 0 auto;
    padding: 24px;
}

h1 {
    text-align: center;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
}

.card {
    background: #222;
    border: 1px solid #333;
    border-radius: 12px;
    padding: 18px;
    text-align: center;
}

.card h2 {
    font-size: 1rem;
    margin: 0 0 12px;
    color: #aaa;
}

.card p {
    font-size: 2rem;
    margin: 0;
}

.controls {
    margin-top: 24px;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

button {
    font-size: 1rem;
    padding: 14px 20px;
    border: none;
    border-radius: 10px;
    background: #444;
    color: white;
    cursor: pointer;
}

button:hover {
    background: #666;
}

.status {
    margin-top: 24px;
    text-align: center;
    color: #aaa;
}