.login-container {
    display: flex;
    height: 100vh;
}

.video-section {
    flex: 7;
    /* 70% */
    background: #000;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.text-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 50px;
    font-weight: bold;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    padding: 10px 50px;
    width: 100%;
    line-height: 1.2;
}


.video-subtitle {
    font-size: 20px;
    font-weight: normal;
}

video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}



.login-area {
    flex: 3;
    /* 30% */
    background: rgba(255, 255, 255, 0.9);
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}


.login_area_top_font {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 20px;
}


form {
    width: 70%;
}


.form-group {
    margin-bottom: 0px;
}




.members_join {
    margin-top: 20px;
}



/* registration_box 스타일링 */
.registration_box {
    display: flex;
    flex-direction: column;
    justify-content: center;
    /* 세로 중앙 정렬 */
    align-items: center;
    /* 가로 중앙 정렬 */
    height: 100vh;
    /* 화면 전체 높이 */
    max-width: 500px;
    margin: 0 auto;
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    /* 그림자 추가 */
    border-radius: 10px;
    /* 둥근 모서리 */
}




.login_button .btn {
    width: 100%;
    display: block; /* 인라인 요소일 경우 필요 */
}



#submit_btn {
    width: 100%;
    display: block;
}