* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    background: #fff;
    overflow: hidden;
    touch-action: none;
}

#game-container {
    width: 100vw;
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

#game-canvas {
    display: block;
    touch-action: none;
    cursor: default;
}

#ui-panel {
    position: absolute;
    bottom: 30px;
    display: flex;
    gap: 15px;
}

button {
    padding: 12px 30px;
    font-size: 16px;
    font-weight: 600;
    background: #ff6b35;
    color: white;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    transition: transform 0.1s;
}

button:active {
    transform: scale(0.95);
}

button:disabled {
    background: #ccc;
    cursor: not-allowed;
}