body {
    margin: 0;
    background: #0f172a;
    font-family: Arial, sans-serif;
    color: white;
}

.container {
    text-align: center;
    padding: 20px;
}

h1 {
    font-size: 4rem;
    margin-bottom: 30px;
}

.controls {
    margin-bottom: 20px;
}

select,
button {
    padding: 12px 20px;
    margin: 10px;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
}

button {
    background: #2563eb;
    color: white;
    cursor: pointer;
    transition: background 0.2s;
}

button:hover {
    background: #1d4ed8;
}

/* Reset button distinct style */
button:last-of-type {
    background: #dc2626;
}

button:last-of-type:hover {
    background: #b91c1c;
}

canvas {
    display: block;
    margin: auto;
    background: #111827;
    border: 3px solid #475569;
    border-radius: 15px;
    cursor: crosshair;
}

#result {
    margin-top: 20px;
    font-size: 1.2rem;
}

.hint {
    margin-top: 10px;
    font-size: 0.85rem;
    color: #64748b;
}