body {
    background: #23243a;
    color: #fff;
    font-family: 'Segoe UI', Arial, sans-serif;
    margin: 0;
}

main {
    width: 520px;
    margin: 30px auto 0 auto;
    background: #222538;
    border-radius: 18px;
    box-shadow: 0 8px 36px #0007;
    padding: 34px 32px 24px 32px;
}

h1 {
    text-align: center;
    margin-bottom: 14px;
    letter-spacing: 1px;
}

.options {
    text-align: center;
    margin-bottom: 12px;
}

.options label, .options select, .options input[type="checkbox"] {
    margin-right: 16px;
    font-size: 1em;
}

#game-zone {
    display: flex;
    gap: 22px;
    align-items: flex-start;
    margin-bottom: 14px;
}

#game-canvas {
    border: 3px solid #34d399;
    background: #191a25;
    border-radius: 12px;
    display: block;
}

aside {
    min-width: 90px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    font-size: 1.1em;
    margin-top: 12px;
}

.controls {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin: 10px 0 10px 0;
}

button {
    background: #34d399;
    border: none;
    border-radius: 6px;
    color: #181920;
    padding: 8px 18px;
    font-weight: bold;
    font-size: 1em;
    cursor: pointer;
    box-shadow: 0 2px 8px #0002;
    transition: background 0.2s;
}

button:disabled {
    background: #353847;
    color: #888;
    cursor: not-allowed;
}

button:hover:enabled {
    background: #10b981;
}

#message {
    text-align: center;
    color: #fcd34d;
    font-weight: bold;
    min-height: 26px;
    margin-top: 8px;
    font-size: 1.1em;
}

kbd {
    background: #353847;
    padding: 2px 8px;
    border-radius: 5px;
    font-size: 0.96em;
}