.curriculum-page {
    --curriculum-main: #202b68;
    --curriculum-light: #168cc8;
    --curriculum-soft: #eef6fc;
    --curriculum-bg: #f7fbff;
    --curriculum-text: #172b42;
    --curriculum-sub: #66717f;
    --curriculum-border: #8bc2fa;
    --step-1: #b9dbee;
    --step-2: #82c1df;
    --step-3: #4fa7d1;
    --step-4: #168cc8;
    width: 100%;
    padding: 80px 0 105px;
    background: #fff;
}

.curriculum-container {
    width: min(1120px, calc(100% - 80px));
    margin: 0 auto;
}

/* =========================
   TOP
========================= */
.curriculum-top {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 50px;
    align-items: end;
    margin-bottom: 34px;
}

.curriculum-top.kids-top {
    grid-template-columns: 1fr;
}

.curriculum-top.kids-top .curriculum-head {
    max-width: 650px;
}

.curriculum-head {
    min-width: 0;
    margin: 0;
    text-align: left;
}

.curriculum-label,
.selector-label {
    display: block;
    margin-bottom: 8px;
    color: var(--curriculum-light);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: .14em;
}

.curriculum-head h2 {
    margin: 0;
    color: var(--curriculum-text);
    font-size: 32px;
    font-weight: 800;
    line-height: 1.35;
    letter-spacing: -1.2px;
    word-break: keep-all;
}

.curriculum-head p {
    margin: 9px 0 0;
    color: var(--curriculum-sub);
    font-size: 14px;
    line-height: 1.7;
    word-break: keep-all;
}

/* =========================
   COURSE SELECTOR
========================= */
.course-selector {
    min-width: 0;
    margin: 0;
    padding: 0;
    border: 0;
    background: none;
}

.course-selector .selector-label {
    text-align: right;
}

.toggle-wrap {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px;
}

.toggle-btn {
    min-width: 110px;
    min-height: 43px;
    padding: 0 16px;
    border: 1px solid var(--curriculum-border);
    border-radius: 10px;
    background: #fff;
    color: var(--curriculum-sub);
    font-size: 13px;
    font-weight: 700;
    white-space: nowrap;
    cursor: pointer;
    transition: color .22s ease, border-color .22s ease, background .22s ease, transform .22s ease, box-shadow .22s ease;
}

.toggle-btn:hover {
    transform: translateY(-1px);
    border-color: var(--curriculum-light);
    color: var(--curriculum-main);
}

.toggle-btn.active {
    border-color: var(--curriculum-main);
    background: var(--curriculum-main);
    color: #fff;
    box-shadow: 0 6px 15px rgba(32, 43, 104, .14);
}

/* =========================
   MAIN LAYOUT
========================= */
.curriculum-layout {
    display: grid;
    grid-template-columns: 260px minmax(0, 760px);
    gap: 30px;
    justify-content: space-between;
    align-items: start;
}

/* =========================
   SIDE NAV
========================= */
.side-nav {
    display: flex;
    flex-direction: column;
}

.mini-card {
    position: relative;
    width: 100%;
    padding: 16px 17px;
    border: 1px solid var(--curriculum-border);
    border-radius: 14px;
    background: #fff;
    text-align: left;
    cursor: pointer;
    box-sizing: border-box;
    transition: transform .23s ease, border-color .23s ease, box-shadow .23s ease, background .23s ease;
}

.mini-card:hover {
    transform: translateX(4px);
    border-color: var(--curriculum-light);
    box-shadow: 0 8px 20px rgba(28, 43, 61, .06);
}

.mini-card.active {
    border-color: var(--curriculum-main);
    background: var(--curriculum-bg);
    box-shadow: 0 9px 24px rgba(32, 43, 104, .08);
}

.step-name {
    display: block;
    margin-bottom: 6px;
    color: var(--curriculum-light);
    font-size: 9px;
    font-weight: 800;
    letter-spacing: .12em;
}

.mini-card h3 {
    margin: 0 0 5px;
    color: var(--curriculum-text);
    font-size: 16px;
    font-weight: 800;
    line-height: 1.4;
    word-break: keep-all;
}

.keywords {
    color: var(--curriculum-sub);
    font-size: 12px;
    line-height: 1.5;
    word-break: keep-all;
}

.step-arrow {
    height: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #b7c0c9;
}

.arrow-icon {
    width: 15px;
    height: 15px;
}

/* 기존 cardClass / 새 stepClass 둘 다 대응 */
.mini-card.card-pink.active,
.mini-card.step-1.active {
    border: 2px solid var(--step-1);
}

.mini-card.card-yellow.active,
.mini-card.step-2.active {
    border: 2px solid var(--step-2);
}

.mini-card.card-mint.active,
.mini-card.step-3.active {
    border: 2px solid var(--step-3);
}

.mini-card.card-blue.active,
.mini-card.step-4.active {
    border: 2px solid var(--step-4);
}

/* =========================
   DETAIL
========================= */
.detail-view {
    min-height: 0;
    padding: 30px 32px;
    border: 1px solid var(--curriculum-border);
    border-radius: 20px;
    background: #fff;
    box-shadow: 0 10px 28px rgba(28, 43, 61, .045);
    box-sizing: border-box;
    transition: opacity .22s ease, transform .22s ease;
}

.detail-view.is-changing {
    opacity: 0;
    transform: translateY(8px);
}

.detail-header {
    padding-bottom: 20px;
    border-bottom: 1px solid var(--curriculum-border);
}

.tag {
    display: inline-flex;
    align-items: center;
    min-height: 27px;
    margin-bottom: 12px;
    padding: 0 10px;
    border-radius: 7px;
    background: var(--curriculum-soft);
    color: var(--curriculum-main);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: .08em;
}

.detail-header h2 {
    margin: 0;
    color: var(--curriculum-text);
    font-size: 27px;
    font-weight: 800;
    line-height: 1.35;
    letter-spacing: -1px;
    word-break: keep-all;
}

.detail-keywords {
    margin: 7px 0 0;
    color: var(--curriculum-light);
    font-size: 14.5px;
    font-weight: 700;
}

.detail-body {
    padding-top: 20px;
}

.main-desc {
    margin: 0 0 18px;
    color: var(--curriculum-sub);
    font-size: 15px;
    line-height: 1.75;
    word-break: keep-all;
}

.item-list {
    display: grid;
    gap: 8px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.item-list li {
    position: relative;
    padding: 12px 14px 12px 34px;
    border-radius: 10px;
    background: var(--curriculum-bg);
    color: var(--curriculum-text);
    font-size: 15px;
    font-weight: 700;
    line-height: 1.55;
    word-break: keep-all;
}

.item-list li::before {
    content: "✓";
    position: absolute;
    top: 11px;
    left: 14px;
    color: var(--curriculum-light);
    font-size: 13px;
    font-weight: 900;
}

/* =========================
   GALLERY
========================= */
.detail-gallery {
    margin-top: 30px;
}

.gallery-head {
    margin-bottom: 12px;
}

.gallery-badge {
    display: inline-block;
    color: var(--curriculum-main);
    font-size: 15px;
    font-weight: 800;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.gallery-item {
    padding: 0;
    overflow: hidden;
    border: 0;
    border-radius: 13px;
    background: #f4f6f8;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    aspect-ratio: 16/10;
    display: block;
    object-fit: cover;
    transition: transform .3s ease;
}

.gallery-item:hover img {
    transform: scale(1.035);
}

/* =========================
   MODAL
========================= */
.image-modal-root {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: rgba(15, 23, 42, .72);
    opacity: 0;
    visibility: hidden;
    transition: opacity .25s ease, visibility .25s ease;
}

.image-modal-root.show {
    opacity: 1;
    visibility: visible;
}

.image-modal-panel {
    position: relative;
    max-width: 900px;
    max-height: 90vh;
}

.modal-image {
    display: block;
    max-width: 100%;
    max-height: 85vh;
    border-radius: 16px;
}

.modal-close {
    position: absolute;
    top: -14px;
    right: -14px;
    z-index: 2;
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: #fff;
    color: #222;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 5px 16px rgba(15, 23, 42, .18);
}

/* =========================
   TABLET
========================= */
@media(max-width:900px) {
    .curriculum-page {
        padding: 65px 0 85px;
    }

    .curriculum-container {
        width: calc(100% - 64px);
    }

    .curriculum-top {
        grid-template-columns: 1fr;
        gap: 24px;
        align-items: start;
        margin-bottom: 36px;
    }

    .course-selector .selector-label {
        text-align: left;
    }

    .toggle-wrap {
        justify-content: flex-start;
    }

    .curriculum-layout {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .side-nav {
        display: grid;
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: 9px;
    }

    .step-arrow {
        display: none;
    }

    .mini-card {
        padding: 15px 13px;
    }

    .mini-card:hover {
        transform: none;
    }
}

/* =========================
   MOBILE
========================= */
@media(max-width:640px) {
    .curriculum-page {
        padding: 48px 0 70px;
    }

    .curriculum-container {
        width: calc(100% - 32px);
    }

    .curriculum-top {
        gap: 22px;
        margin-bottom: 30px;
    }

    .curriculum-head h2 {
        font-size: 26px;
        letter-spacing: -.8px;
    }

    .curriculum-head p {
        margin-top: 7px;
        font-size: 13px;
        line-height: 1.65;
    }

    .selector-label {
        margin-bottom: 8px;
    }

    .toggle-wrap {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 7px;
    }

    .toggle-btn {
        min-width: 0;
        min-height: 41px;
        padding: 0 7px;
        font-size: 11px;
        white-space: normal;
        line-height: 1.3;
    }

    .curriculum-layout {
        gap: 20px;
    }

    .side-nav {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 8px;
    }

    .mini-card {
        padding: 14px 12px;
        border-radius: 12px;
    }

    .mini-card h3 {
        font-size: 14px;
    }

    .keywords {
        font-size: 10px;
    }

    .detail-view {
        min-height: 0;
        padding: 25px 19px;
        border-radius: 17px;
    }

    .detail-header {
        padding-bottom: 19px;
    }

    .tag {
        min-height: 24px;
        margin-bottom: 10px;
        font-size: 9px;
    }

    .detail-header h2 {
        font-size: 23px;
    }

    .detail-keywords {
        font-size: 12px;
    }

    .detail-body {
        padding-top: 20px;
    }

    .main-desc {
        margin-bottom: 18px;
        font-size: 13px;
        line-height: 1.75;
    }

    .item-list {
        gap: 8px;
    }

    .item-list li {
        padding: 12px 12px 12px 32px;
        font-size: 12px;
        font-weight: 700;
    }

    .item-list li::before {
        top: 11px;
        left: 13px;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
    }

    .detail-gallery {
        margin-top: 24px;
    }
}

@media(max-width:380px) {
    .curriculum-container {
        width: calc(100% - 28px);
    }

    .toggle-wrap {
        grid-template-columns: 1fr;
    }

    .side-nav {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}