* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    height: 100vh;
    background-color: white;
    color: black;
    font-family: Verdana;
}

#canvasContainer {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
}

.fullscreen-image {
    position: relative;
    text-decoration: none;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.fullscreen-image img {
    width: 100vw;
    height: 100vh;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
}

#letterOverlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 2;
    pointer-events: none;
}

#letterOverlay span {
    position: absolute;
    color: black;
    font-weight: 400;
    letter-spacing: normal;
    opacity: 0.15;
    user-select: none;
    pointer-events: auto;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    cursor: pointer;
}

#letterOverlay span:hover,
#letterOverlay.hoverAll span {
    background-color: #333 !important;
    color: white !important;
}

#topMenuBar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    display: none;
    flex-direction: row;
    align-items: flex-start;
    gap: 10rem;
    padding: 1.5rem 3rem;
    background: transparent;
    z-index: 60;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-size: 12px;
    font-weight: 400;
    line-height: 1.4;
}

#topMenuBar.visible {
    display: flex;
}

#topMenuBar.gallery-open {
    background: white;
    padding-bottom: 0.5rem;
}

#topMenuBar .brand {
    font-weight: 400;
    font-size: 12px;
    white-space: nowrap;
    display: inline-block;
    cursor: pointer;
}

.menuSection {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    width: 170px;
    flex-shrink: 0;
    max-height: calc(100vh - 4rem);
    overflow-y: auto;
}

.menuHeading {
    font-weight: 400;
    font-size: 12px;
    cursor: default;
    display: inline-block;
}

.menuHeading.clickable {
    cursor: pointer;
}

.menuHeading.clickable:hover {
    text-decoration: underline;
}

#topMenuBar .brand:hover {
    text-decoration: underline;
}

.menuHeading::after {
    content: '';
    display: block;
    width: 100%;
    height: 1px;
    background: black;
    margin-top: 0.5rem;
}

.menuSubitem {
    font-weight: 400;
    font-size: 12px;
    padding: 0;
    display: block;
}

.subitemGroup {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    padding: 0.6rem 2px 0;
    max-height: 2000px;
    transition: max-height 0.4s ease;
}

.subitemGroup.collapsed {
    max-height: 0;
    padding-top: 0;
    overflow: hidden;
}

/* 갤러리 열려있을 때 해당 섹션에 커서 올리면 목차 슬라이드 다운 (마우스만, 터치 제외) */
@media (hover: hover) and (pointer: fine) {
    #artSection:hover .subitemGroup.collapsed,
    #designSection:hover .subitemGroup.collapsed,
    #textSection:hover .subitemGroup.collapsed {
        max-height: 2000px;
    }
}

.menuSubitem.hidden {
    display: none;
}

.contactSection {
    position: relative;
    max-height: none;
    overflow: visible;
}

#contactInfo {
    display: block;
    opacity: 0;
    pointer-events: none;
    position: absolute;
    top: 2.2rem;
    left: 0;
    z-index: 70;
    padding: 2px 4px;
    white-space: normal;
    line-height: 1.4;
    transition: opacity 0.2s;
}

#contactInfo a {
    color: black;
    text-decoration: none;
}

#contactInfo a:hover {
    text-decoration: underline;
}

.contactSection.open #contactInfo {
    opacity: 1;
    pointer-events: auto;
}

.printmakingWrapper,
.itemWrapper,
.yearWrapper {
    display: block;
}

#printmakingList,
.subList,
.yearList {
    display: none;
    list-style: none;
    margin: 0.5rem 0 0 0;
    padding: 0;
}

#printmakingList.open,
.subList.open,
.yearList.open {
    display: block;
    border-bottom: 1px dashed black;
    padding-bottom: 0.4rem;
    margin-top: 0.8rem;
    margin-bottom: 0.2rem;
}

#printmakingList li,
.subList li,
.yearList li {
    display: flex;
    gap: 0.6rem;
    align-items: baseline;
    margin-bottom: 0.2rem;
}

.item-year {
    flex-shrink: 0;
    min-width: 2.2rem;
    font-size: 12px;
    font-weight: 400;
    color: black;
}

#printmakingList li a,
.subList li a,
.yearList li a {
    display: block;
    font-size: 12px;
    font-weight: 400;
    color: black;
    text-decoration: none;
    padding: 0 2px;
    white-space: normal;
    overflow-wrap: break-word;
}

#printmakingList li a:hover,
.subList li a:hover,
.yearList li a:hover {
    text-decoration: underline;
}

.clickableSubitem {
    cursor: pointer;
}

.clickableSubitem:hover {
    text-decoration: underline;
}

.clickableSubitem.active {
    position: relative;
}

.clickableSubitem.active::before {
    content: '⮕';
    margin-right: 0.3rem;
}

.clickableSubitem.active::after {
    content: '';
    display: block;
    position: absolute;
    left: 0;
    right: 0;
    bottom: -0.4rem;
    border-bottom: 1px dashed black;
}

#menuOverlay {
    display: none !important;
}

#menuOverlay .menuLink {
    display: block;
    color: black;
    text-decoration: none;
    line-height: 1.2;
    margin-bottom: 1px;
    font-size: 2rem;
}

#menuOverlay .menuLink:hover {
    color: white;
    text-shadow: -1px -1px 0 #000, 1px -1px 0 #000, -1px 1px 0 #000, 1px 1px 0 #000;
}

#menuOverlay .closeMenu {
    position: absolute;
    top: 20px;
    right: 20px;
    cursor: pointer;
    font-size: 1rem;
    color: black;
    background: none;
    border: none;
}

/* Galleries */
#artGallery, #designGallery, #textGallery, #contactGallery {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: white;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-y: contain;
    z-index: 30;
    padding: 6rem 3rem 5rem;
    box-sizing: border-box;
}

#artGallery.visible, #designGallery.visible, #textGallery.visible, #contactGallery.visible {
    display: block;
    animation: galleryFadeIn 0.18s ease;
}

#contactGallery .contactGalleryContent {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-size: 12px;
    line-height: 2;
}

#contactGallery .contactGalleryContent a {
    color: black;
    text-decoration: none;
}

#contactGallery .contactGalleryContent a:hover {
    text-decoration: underline;
}

@keyframes galleryFadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

.galleryGrid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2.5rem 2rem;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

.galleryCategoryRow {
    grid-column: 1 / -1;
    font-size: 12px;
    font-weight: 400;
    border-top: 1px solid black;
    padding-top: 0.5rem;
    margin-top: 2rem;
}

.galleryThumb {
    display: block;
    text-decoration: none;
    color: black;
}

.galleryThumb img {
    /* 긴 변을 컬럼 너비와 동일하게 고정: (100vw - 좌우패딩6rem - 3개 gap 6rem) / 4열 */
    max-width: 100%;
    max-height: calc((100vw - 12rem) / 4);
    width: auto;
    height: auto;
    display: block;
    transition: opacity 0.15s;
}

.galleryThumb:hover img {
    opacity: 0.8;
}

.galleryCaption {
    font-size: 12px;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-weight: 400;
    margin-top: 0.4rem;
    line-height: 1.5;
    display: block;
    color: black;
}

.galleryThumb:hover .galleryCaption {
    text-decoration: underline;
}

/* Text gallery: 리스트 */
.textList {
    display: flex;
    flex-direction: column;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

.textList .galleryCategoryRow {
    margin-top: 1.2rem;
    margin-bottom: 0.6rem;
}

.textListItem {
    display: block;
    font-size: 12px;
    font-weight: 400;
    color: black;
    text-decoration: none;
    padding: 0.15rem 0;
    line-height: 1.6;
}

.textListItem:hover {
    text-decoration: underline;
}

/* Text gallery: image 대신 텍스트 카드 (미사용) */
.textCard {
    width: 100%;
    min-height: 6rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 0.7rem 0.8rem;
    box-sizing: border-box;
    border: 1px solid #ccc;
    overflow: hidden;
    transition: border-color 0.15s;
}

.galleryThumb:hover .textCard {
    border-color: #333;
}

.textCardYear {
    font-size: 12px;
    color: #999;
}

.textCardTitle {
    font-size: 12px;
    font-weight: 400;
    line-height: 1.4;
    flex: 1;
    display: flex;
    align-items: center;
}

.textCardExcerpt {
    font-size: 10px;
    color: #aaa;
    line-height: 1.5;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

#copyright {
    position: fixed;
    bottom: 1.5rem;
    left: 3rem;
    font-size: 11px;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-weight: 400;
    color: black;
    z-index: 20;
}

.gallery-copyright {
    font-size: 11px;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-weight: 400;
    color: black;
    padding: 4rem 0 2rem 0;
}

/* ── 태블릿: ≤1100px ── */
@media (max-width: 1100px) {
    #topMenuBar {
        gap: 5rem;
    }
}

/* ── 태블릿: ≤900px ── */
@media (max-width: 900px) {
    #topMenuBar {
        gap: 2.5rem;
        padding: 1.5rem 2rem;
    }
    .menuSection {
        width: 130px;
    }
    .galleryGrid {
        grid-template-columns: repeat(3, 1fr);
        gap: 2rem 1.5rem;
    }
    .galleryThumb img {
        max-height: calc((100vw - 7rem) / 3);
    }
    #artGallery, #designGallery, #textGallery {
        padding: 6rem 2rem 5rem;
    }
}

/* ── 모바일: ≤768px ── */
@media (max-width: 768px) {

    /* topMenuBar: 2×2 그리드 (brand 전체폭 + 섹션 2열) */
    #topMenuBar.visible {
        display: grid;
    }
    #topMenuBar {
        grid-template-columns: 1fr 1fr;
        gap: 0.5rem 2.5rem;
        padding: 1.2rem 1.5rem 1rem;
        align-items: start;
    }
    #topMenuBar .brand {
        grid-column: 1 / -1;
        display: block;
        border-bottom: 1px solid black;
        padding-bottom: 0.5rem;
        margin-bottom: 0.1rem;
    }
    .menuSection {
        width: auto;
        min-width: 0;
        max-height: 55vh;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    /* 갤러리: 좌우/하단 패딩만 설정, padding-top은 JS로 동적 계산 */
    #artGallery, #designGallery, #textGallery, #contactGallery {
        padding-left: 1.2rem;
        padding-right: 1.2rem;
        padding-bottom: 5rem;
    }

    /* 갤러리 그리드: 2열 */
    .galleryGrid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.2rem 0.8rem;
    }
    .galleryThumb img {
        max-height: calc((100vw - 3rem) / 2);
    }

    /* 텍스트 갤러리 */
    .textList .galleryCategoryRow {
        margin-top: 1rem;
    }

    /* 터치 타겟: 탭하기 쉽게 메뉴 항목 최소 높이 확보 */
    .menuSubitem,
    .clickableSubitem {
        min-height: 2rem;
        display: flex;
        align-items: center;
    }

    #printmakingList li a,
    .subList li a,
    .yearList li a {
        padding: 0.3rem 2px;
    }

    .galleryThumb {
        cursor: pointer;
    }

    /* text / contact 위 구분선 (2행 시작) */
    #textSection,
    #contactSectionMenu {
        border-top: 1px solid black;
        padding-top: 0.5rem;
        margin-top: 0.2rem;
    }

    /* 모바일에서 contact 정보는 contactGallery가 담당 → 메뉴 내 #contactInfo 완전히 숨김 */
    #contactInfo {
        display: none;
    }
}