/* 모달 배경 */
.modal {
    display: none;
    position: fixed;
    z-index: 999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
}

/* 모달 창 */
.modal-content {
    background-color: #222;
    color: white;
    margin: 15% auto;
    padding: 50px;
    border-radius: 10px;
    width: 80%;
    max-width: 500px;
    position: relative;
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.1);

}

/* 닫기 버튼 */
.close {
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 24px;
    cursor: pointer;
    color: white;
}

/* 언어 선택 버튼 */
.language-switch {
    text-align: right;
    margin-bottom: 10px;
}

.lang-btn {
    margin-left: 10px;
    background: #444;
    color: white;
    border: none;
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
}

.lang-btn:hover {
    background: #666;
}

/* graph-explain 버튼 스타일 */
.graph-explain {
    position: absolute;
    bottom: 20px;
    right: 5%;
    color: #fff;
    font-size: 14px;
    cursor: pointer;
    opacity: 0.8;
}