/* common */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
}

.head-line {
    font-size: var(--font-size-xl);
    color: var(--main-text-color);
    font-weight: 700;
    line-height: 60px
}

.sub-title {
    font-size: var(--font-size-xs);
    color: var(--secondary-text-color);
    font-weight: 500;
    margin-bottom: 14px;
}

.body-text-grey {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--secondary-text-color);
}

.body-text-black {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--main-text-color);
}

/* custom */
.top-bar {
    width: 100%;
    padding: 0 40px;
    padding-top: 10px;
    box-shadow: 0px 15px 15px rgba(189, 189, 189, 0.07);
    background-color: #FFFFFF;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 999;
}

.top-bar__inner {
    width: 100%;
    height: 70px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-bar__left-box {
    display: flex;
    align-items: center;
}

.top-bar__left-box h1 a img {
    width: 200px;
    object-fit: cover;
    padding: 20px 0;
    margin-right: 60px;
}

.top-bar__left-box .top-bar__menu ul {
    display: flex;
    gap: 30px;
}

.top-bar__left-box .top-bar__menu ul li a{
    display: block;
    font-size: 20px;
    font-weight: 500;
    padding: 10px 0;
    color: var(--secondary-text-color);
}

.top-bar__right-box {
    display: flex;
    align-items: center;
    gap: 30px;
}

.top-bar__right-box .contact-btn{
    padding: 8px 10px;
    background-color: #fff;
    color: var(--lkc-primary-color);
    border: 1px solid var(--lkc-primary-color);
    border-radius: 8px;
    font-size: 20px;
    font-weight: 500;
    cursor: pointer;
}


.lang-dropdown {
    position: relative;
    /* width: 140px; */
    font-size: 14px;
    user-select: none;
}

.lang-dropdown .selected {
    padding: 6px 20px;
    border: 1px solid #ccc;
    border-radius: 8px;
    background: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 20px;
    color: var(--main-text-color);
    font-weight: 600;
    transition: border-color 0.3s;
}

.lang-dropdown .options {
    position: absolute;
    top: 110%;
    left: 0;
    right: 0;
    background: #fff;
    border: 2px solid #ddd;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    margin: 0;
    padding: 4px 0;
    list-style: none;
    display: none;
    z-index: 10;
}

/* 옵션 개별 스타일 */
.lang-dropdown .options li {
    padding: 10px 14px;
    cursor: pointer;
    transition: background 0.2s;
    font-size: 16px;
    color: var(--main-text-color);
}

.top-bar__right-box .contact-btn:hover {
    background-color: var(--lkc-primary-color);
    color: #fff;
    transition: all 0.3s ease;
}





/* hero section */
.hero__inner {
    width: 100%;
    height: calc(100vh - 80px);
    /* background-color: blue; */
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.hero-img-box {
    position: relative;
    margin-bottom: 40px;
    width: 20vw;
}

.hero-img-box .lss-icon {
    width: 100%;
    height: auto;
    object-fit: cover;
}

.eyes {
    position: absolute;
    top: 40%;       /* 눈 위치 */
    left: 50%;
    transform: translateX(-50%);
    width: 6vw;
    height: auto;
    display: inline-block;
}

.eyes-open {
    left: 7vw;
}

.eyes-open {
    animation: blinkSmooth 2.6s infinite;
    transform-origin: center center;
    animation-timing-function: ease-in-out;
}

@keyframes blinkSmooth {
    0%, 72% {
        opacity: 1;
        transform: scaleY(1);
    }

    78% {
        opacity: 1;
        transform: scaleY(0.25);
    }

    80% {
        opacity: 0;
        transform: scaleY(0);
    }

    81%, 100% {
        opacity: 0;
        transform: scaleY(0);
    }
}

.hero__inner h2 img{
    width: 24vw;
    object-fit: cover;
    margin-bottom: 20px;
    vertical-align: bottom;
}

.hero__inner .hero-sub-text {
    font-size: var(--font-size-sm);
    color: var(--secondary-text-color);
    font-weight: 500;
}


/* section1 | 교육 철학 */
.edu-philosophy-section {
    padding: 150px 0;
}

.edu-philosophy__inner {
    padding-top: 150px;
    position: relative;
}

.edu-philosophy__img img {
    width: 90%;
    max-width: 1280px;
    height: auto;
    object-fit: cover;
    vertical-align: bottom;
    position: absolute;
    top: 0%;
    left: 50%;
    transform: translateX(-50%);
}

.edu-philosophy__info {
    width: 100%;
    background-color: var(--lkc-primary-color);
    padding-top: 220px;
    padding-bottom: 60px;
    font-size: var(--font-size-md);
    font-weight: 500;
    color: #fff;
    text-align: center;
}



/* section2 | 교육시스템 */
.edu-system-section {
    display: flex;
    align-items: center;
    padding: 100px 0 250px 0;
}

.edu-system__info {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    margin-bottom: 70px;
}

.edu-philosophy__info .sub-title, .edu-system__info .head-line {
    text-align: center;
}

.edu-philosophy__info .sub-title {
    margin-bottom: 10px;
}

.edu-system__img-list {
    display: flex;
    gap: 20px;
}

.edu-system__img-box-md {
    width: 25%;
    height: 500px;
    position: relative;
}

.edu-system__img-box-lg {
    width: 50%;
    height: 500px;
    position: relative;
}

.edu-system__img-box-md img, .edu-system__img-box-lg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 15px;
}

.edu-system__img-box-2::before,
.edu-system__img-box-2::after {
    content: '';
    position: absolute;
    width: 60px;
    height: 60px;
    background: url("../assets/images/plus_icon.png") no-repeat center / cover;
    z-index: 30;
}

.edu-system__img-box-2::before {
    left: -40px;
    top: 50%;
    transform: translateY(-50%);
}

.edu-system__img-box-2::after {
    right: -40px;
    top: 50%;
    transform: translateY(-50%);
}

.edu-system-info-text {
    position: absolute;
    bottom: 20px;
    left: 20px;
    font-size: var(--font-size-md);
    color: #fff;
    font-weight: 600;
}



/* section3 | 학습 확장 */
.learning-extension-section {
    width: 100%;
    padding: 150px 0 350px 0;
}

.step-section {
    max-width: 1280px;
    margin: 0 auto;
}

.learning-extension__info {
    margin-bottom: 50px;
}

.learning-extension__info .sub-title {
    margin-bottom: 10px;
}

.learning-extension__info .sub-title, .learning-extension__info .head-line {
    text-align: center;
}

.step-box {
    border: 2px solid #ddd;
    border-radius: 25px;
}

/* 탭 스타일 */
.step-tab-container {
    display: flex;
    border-bottom: 2px solid #ddd;
}
.step-tab {
    flex: 1;
    text-align: center;
    padding: 20px 0;
    cursor: pointer;
    font-size: var(--font-size-xs);
    color: #999;
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
}
.step-tab span {
    display: block;
    font-size: var(--font-size-md);
    margin-bottom: 5px;
}
.step-tab.active {
    color: #ff6000;
}
.step-tab.active::after {
    content: "";
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 3px;
    background: #ff6000;
}

/* 슬라이드 내부 레이아웃 */
.learning-extension-box {
    display: flex;
    gap: 30px;
    padding: 50px;
}

.learning-extension-box .learning-extension-img-box {
    width: 50%;
    height: auto;
}

.learning-extension-box .learning-extension-img-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 15px;
    display: block;
}

.learning-extension-box .learning-extension-text-box {
    width: 50%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.learning-extension-box .learning-extension-text-box .sub-text {
    font-size: var(--font-size-xs);
    color: var(--main-text-color);
    font-weight: 500;
    margin-bottom: 8px;
}

.learning-extension-box .learning-extension-text-box .main-title {
    font-size: var(--font-size-lg);
    color: var(--main-text-color);
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.3;
}

.learning-extension-box .learning-extension-text-box .description {
    font-size: var(--font-size-sm);
    color: var(--secondary-text-color);
    font-weight: 500;
    line-height: 1.5;
}



/* section4 | 차별 요소 */
.edu-keyPoint-section {
    width: 100%;
    background-color: var(--lkc-secondary-color);
    position: relative;
    display: flex;
    align-items: center;
}

.edu-keyPoint__inner {
    position: relative;
    z-index: 1;
    padding: 16vw 0;
}

.edu-keyPoint__info {
    margin-bottom: 50px;
}

.edu-keyPoint__info .sub-title {
    margin-bottom: 10px;
}

.edu-keyPoint__info .sub-title, .edu-keyPoint__info .head-line {
    text-align: center;
}

.edu-keyPoint-section::before,
.edu-keyPoint-section::after {
    content: '';
    position: absolute;
    left: 0;
    width: 100%;
    height: 10vw;

    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
}

.edu-keyPoint-section::before {
    top: 0;
    background-image: url("../assets/images/roof_img.png");
}

.edu-keyPoint-section::after {
    bottom: 0;
    background-image: url("../assets/images/shape_img.png");
}

.edu-keyPoint__list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.edu-keyPoint-box {
    background-color: rgba(255, 255, 255, 0.6);
    border-radius: 15px;
    padding: 30px 25px;
}

.edu-keyPoint-box__top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 45px;
}

.edu-keyPoint-box__top .keyPoint-main-text {
    font-size: var(--font-size-md);
    color: var(--main-text-color);
    font-weight: 600;
    margin-bottom: 10px;
}

.edu-keyPoint-box__top .keyPoint-icon-box {
    width: 75px;
    height: 75px;
}

.edu-keyPoint-box__top .keyPoint-icon-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.edu-keyPoint-box__bottom .keyPoint-sub-text {
    font-size: var(--font-size-xs);
    color: var(--secondary-text-color);
    font-weight: 500;
    line-height: 1.5;
}






/* section5 | 문의하기 */
.contact-section {
    width: 100%;
    padding: 150px 0 0 0;
    text-align: center;
    display: flex;
    justify-content: center;
    background-color: var(--lkc-secondary-color);
}

.contact-section .head-line {
    margin-bottom: 40px;
    text-align: center;
}

.contact-btn-lg {
    width: 400px;
    height: 77px;
    background-color: var(--lkc-secondary-color);
    color: var(--lkc-primary-color);
    border: 2px solid var(--lkc-primary-color);
    border-radius: 8px;
    font-size: 20px;
    font-weight: 600;
    cursor: pointer;
    margin-bottom: 120px;
}
.contact-btn-lg:hover {
    background-color: var(--lkc-primary-color);
    color: #fff;
    transition: all 0.3s ease;
}


.contact-modal {
    display: none; 
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
}

.contact-modal__overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
}

/* 모달 박스 */
.contact-modal__content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    max-width: 775px;
    padding: 40px 20px;
    background-color: #fff;
    border-radius: 25px;
}

.contact-title-box {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 20px;
}

.contact-title-txt {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary-color);
}

.contact-title-box i {
    font-size: 24px;
    color: var(--text-primary-color);
    padding-left: 25px;
    cursor: pointer;
}

.contact-input-list-box {
    padding: 20px 0 40px 0;
    border-top: 1px solid #e2e2e2;
}

.contact-info-box {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 16px;
}

.input-box {
    flex: 1;
    width: 50%;
}

label {
    font-size: 16px;
    font-weight: 500;
    display: block;
    margin-bottom: 10px;
    color: var(--text-primary-color);
}

.custom-input {
    display: block;
    width: 100%;
    margin-bottom: 20px;
    height: 50px;
    padding: 10px;
    font-size: 16px;
    border-radius: 5px;
    background-color: #f6f7fa;
    border: none;
}

.custom-input::placeholder,
.form-control::placeholder {
    color: #bfbfbf; 
    opacity: 1;  
}


.form-control {
    display: block;
    width: 100%;
    height: 250px;
    margin-bottom: 20px;
    padding: 10px;
    font-size: 16px;
    border-radius: 5px;
    background-color: #f6f7fa;
    border: none;
    resize: none;
    letter-spacing: normal;
    word-spacing: normal;
}

.send-btn {
    margin: 0 auto;
    padding: 16px;
    font-size: 24px;
    border-radius: 15px;
    cursor: pointer;
    width: 100%;
    font-size: 18px;
    font-weight: 700;
    text-align: center;
    color: #fff;
    background-color: var(--lkc-primary-color);
}

.lkc-end-img-box {
    width: 100%;
}

.lkc-end-img-box img {
    width: 100%;
    height: auto;
    object-fit: cover;
    vertical-align: bottom;
}





/* footer */
footer {
    width: 100%;
    padding: 100px 0;
    background-color: var(--lkc-primary-color);
}

.footer__inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-logo-box {
    width: 300px;
    margin-bottom: 30px;
}

.footer-logo-box img {
    width: 100%;
    height: auto;
    vertical-align: bottom;
    object-fit: cover;
}

.footer-info-box {
    color: #fff;
    font-size: var(--font-size-xs);
    line-height: 1.5;
    margin-bottom: 30px;
}

footer .download-btn {
    color: #fff;
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.family-site {
    position: relative;
}

.family-site__list.is-open {
    display: block;
}

.family-site-dropDown {
    width: 185px;
    height: 45px;
    padding: 10px;
    background-color: var(--lkc-primary-color);
    border: 1px solid #fff;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 500;
    color: #fff;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.family-site-dropDown img {
    width: 24px;
    height: 24px;
    object-fit: cover;
    transition: transform 0.3s;
}

.family-site-dropDown.is-open img {
    transform: rotate(45deg);
}


.family-site__list {
    width: 185px;

    position: absolute;
    bottom: 50px;
    right: 0;

    background: #fff;
    border-radius: 8px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    padding: 10px 0;

    opacity: 0;
    transform: translateY(10px);
    pointer-events: none;

    transition:
    opacity 0.25s ease,
    transform 0.25s ease;
}

.family-site__list.is-open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.family-site__list li a {
    display: block;
    padding: 10px 20px;
    white-space: nowrap;
    font-size: 16px;
    font-weight: 500;
    color: var(--main-text-color);
}

.family-site__list li a:hover {
    background: #f5f5f5;
}