* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #fff;
    color: #222;
    text-align: center;
}

.page {
    min-height: 100vh;
    padding: 20px;
}

.back-link {
    display: inline-block;
    margin-bottom: 15px;
    color: #555;
    text-decoration: none;
}

h1 {
    font-size: 2.5rem;
    margin: 10px 0;
}

.subtitle {
    color: #666;
    margin-bottom: 20px;
}

.plinko-card {
    max-width: 680px;
    margin: auto;
    background: white;
    border-radius: 20px;
    padding: 18px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

.game-area {
    width: 100%;
    height: 420px;
    border: 5px solid #222;
    border-radius: 18px;
    overflow: hidden;
    background: linear-gradient(#e6e6e6, #aeafb0);
}

.game-area canvas {
    display: block;
    width: 100%;
    height: 100%;
}

.labels {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    margin: 8px 0 18px;
    gap: 6px;
}

.labels div {
    background: #f2f2f2;
    border: 2px solid #222;
    border-radius: 10px;
    padding: 8px 4px;
    font-weight: bold;
    font-size: 0.9rem;
}

button {
    border: none;
    border-radius: 999px;
    padding: 18px 28px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    background: #222;
    color: white;
    box-shadow: 0 5px 0 #000;
}

button:active {
    transform: translateY(3px);
    box-shadow: 0 2px 0 #000;
}

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

.status {
    color: #666;
    font-style: italic;
}

.result {
    margin-top: 18px;
    margin-bottom: 18px;
    padding: 18px;
    border-radius: 15px;
    background: #f2f2f2;
}

.result h2 {
    margin-top: 0;
}

.result p {
    font-size: 1.25rem;
    font-weight: bold;
}

.hidden {
    display: none;
}

.label-btn {
    cursor: pointer;
}
.label-btn:hover {
    opacity: 0.75;
}

@media (max-width: 700px) {
    .page {
        padding: 12px;
    }

    h1 {
        font-size: 1.8rem;
    }

    .game-area {
        height: 300px;
    }

    .labels div {
        font-size: 0.72rem;
    }

    button {
        width: 100%;
        font-size: 1rem;
        padding: 18px;
    }
}

.counter {
    margin: 16px 0 0;
    color: #555;
    font-size: 0.95rem;
}

.counter strong {
    color: #222;
    font-size: 1.15rem;
}