/* 理科 css file */
/* 暗転・準備中ボタンの共通スタイル */
.study-btn-ready,
.pdf-btn-ready {
    padding: 15px;
    border: 2px dashed #ccc;
    border-radius: 10px;
    text-decoration: none;
    font-weight: bold;
    background: rgba(200, 200, 200, 0.1);
    pointer-events: none;
    opacity: 0.7;
    color: var(--text);
}

.game-btn-ready {
    opacity: 0.6;
    filter: grayscale(100%);
    pointer-events: none;
    cursor: default;
}

.pdf-btn-ready {
    border: none;
}