/* ==========================================================================
   pixel09 — Architectural Grid
   회색 톤 + 모노스페이스 메타 + 정밀한 그리드.
   ========================================================================== */

:root {
    --bg:        #f0f0ee;
    --surface:   #ffffff;
    --text:      #1a1a1a;
    --muted:     #888885;
    --line:      #d8d8d4;
    --line-strong: #1a1a1a;
    --accent:    #1a1a1a;
    --mono:      "IBM Plex Mono", "JetBrains Mono", "Consolas", monospace;
    --sans:      "IBM Plex Sans", "Inter", -apple-system, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--sans);
    line-height: 1.55;
    background-image:
        linear-gradient(var(--line) 1px, transparent 1px),
        linear-gradient(90deg, var(--line) 1px, transparent 1px);
    background-size: 80px 80px;
}
a { color: var(--text); text-decoration: underline; text-decoration-color: var(--muted); text-underline-offset: 4px; }
a:hover { text-decoration-color: var(--text); }
img { max-width: 100%; display: block; }

/* ---------- Header ---------- */
.site-header { background: var(--surface); border-bottom: 1px solid var(--line-strong); }
.site-header__inner { max-width: 1320px; margin: 0 auto; padding: 1.25rem 2rem; display: flex; align-items: center; gap: 2rem; flex-wrap: wrap; }
.site-header__title { margin: 0; font-family: var(--mono); font-size: 1.1rem; font-weight: 600; letter-spacing: -0.02em; }
.site-header__title a { color: var(--text); text-decoration: none; }
.site-header__title a::before { content: "[ "; color: var(--muted); }
.site-header__title a::after { content: " ]"; color: var(--muted); }
.site-header__nav { display: flex; gap: 0.5rem; }
.site-header__nav a { font-family: var(--mono); font-size: 0.8rem; padding: 0.35rem 0.8rem; color: var(--text); text-decoration: none; border: 1px solid var(--line); }
.site-header__nav a:hover { background: var(--text); color: var(--surface); border-color: var(--text); }

/* ---------- Site Switcher ---------- */
.site-switcher { margin-left: auto; position: relative; }
.site-switcher__summary { list-style: none; cursor: pointer; padding: 0.35rem 0.85rem; border: 1px solid var(--line-strong); background: var(--surface); font-family: var(--mono); font-size: 0.8rem; display: inline-flex; align-items: center; gap: 0.4rem; }
.site-switcher__summary::-webkit-details-marker { display: none; }
.site-switcher[open] .site-switcher__summary { background: var(--text); color: var(--surface); }
.site-switcher__list { position: absolute; right: 0; top: 100%; background: var(--surface); border: 1px solid var(--line-strong); border-top: none; margin: 0; padding: 0; min-width: 240px; list-style: none; z-index: 10; }
.site-switcher__item { border-top: 1px solid var(--line); }
.site-switcher__item:first-child { border-top: none; }
.site-switcher__item a { display: flex; justify-content: space-between; padding: 0.55rem 0.95rem; font-family: var(--mono); font-size: 0.8rem; color: var(--text); text-decoration: none; }
.site-switcher__item a:hover { background: var(--bg); }
.site-switcher__item.is-current a { background: var(--text); color: var(--surface); }
.site-switcher__item.is-current a::after { content: "●"; }

/* ---------- Main ---------- */
.site-main { max-width: 1320px; margin: 0 auto; padding: 3rem 2rem; background: var(--surface); border-left: 1px solid var(--line); border-right: 1px solid var(--line); min-height: 70vh; }

.hero { padding: 2.5rem 0 3rem; border-bottom: 1px solid var(--line-strong); margin-bottom: 3rem; display: grid; grid-template-columns: 1fr 2fr; gap: 2rem; align-items: end; }
.hero__title { font-size: 3rem; line-height: 1; margin: 0; font-weight: 600; letter-spacing: -0.04em; }
.hero__lead { color: var(--muted); font-family: var(--mono); font-size: 0.9rem; margin: 0; padding-bottom: 0.5rem; }
@media (max-width: 700px) { .hero { grid-template-columns: 1fr; } }

.latest-gallery__header, .board__header { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 1.5rem; }
.latest-gallery__header h2, .board__header h2 { font-family: var(--mono); font-size: 0.95rem; margin: 0; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; }
.latest-gallery__header h2::before, .board__header h2::before { content: "01 / "; color: var(--muted); }
.latest-gallery__more { font-family: var(--mono); font-size: 0.8rem; }
.latest-gallery__empty, .board__empty { color: var(--muted); padding: 3rem 0; text-align: center; font-family: var(--mono); font-size: 0.85rem; border: 1px dashed var(--line); }
.board__count { font-family: var(--mono); margin: 0; font-size: 0.85rem; }

/* ---------- Thumb Grid ---------- */
.thumb-grid { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.thumb-grid__item { border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.thumb-grid--list { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 900px) { .thumb-grid, .thumb-grid--list { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .thumb-grid, .thumb-grid--list { grid-template-columns: 1fr; } }

.thumb-card { display: block; padding: 1.25rem; color: inherit; text-decoration: none; height: 100%; }
.thumb-card:hover { background: var(--bg); }
.thumb-card__image { display: block; aspect-ratio: 4/3; background: var(--bg); overflow: hidden; margin-bottom: 1rem; border: 1px solid var(--line); }
.thumb-card__image img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(0.2); transition: filter 0.3s; }
.thumb-card:hover .thumb-card__image img { filter: grayscale(0); }
.thumb-card__title { display: block; font-size: 0.95rem; line-height: 1.4; margin-bottom: 0.4rem; font-weight: 500; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.thumb-card__date, .thumb-card__meta { display: block; font-family: var(--mono); color: var(--muted); font-size: 0.75rem; }
.thumb-card__meta { display: flex; gap: 1rem; }

/* ---------- Pagination ---------- */
.pagination { display: flex; justify-content: center; align-items: center; gap: .4rem; margin-top: 3rem; flex-wrap: wrap; }
.pagination a {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 3.2rem; height: 3.2rem; padding: .4rem .6rem;
    font-size: .88rem; text-decoration: none;
    border-radius: 0;
    color: #888885;
    border: 1px solid currentColor;
    transition: background-color .15s ease, color .15s ease;
}
.pagination a:hover { color: #1a1a1a; border-color: #1a1a1a; text-decoration: none; }
.pagination a.current {
    background: #1a1a1a; color: #f0f0ee; border-color: #1a1a1a;
    font-weight: 700; pointer-events: none;
}
.pagination a.pagination-prev,
.pagination a.pagination-next { font-size: 1.1rem; font-weight: 700; }
.pagination a.pagination-prev::before { content: '‹'; }
.pagination a.pagination-next::before { content: '›'; }

/* ---------- Board View ---------- */
.board-view__header { padding-bottom: 1.5rem; border-bottom: 1px solid var(--line-strong); margin-bottom: 2rem; }
.board-view__title { font-size: 2.25rem; margin: 0 0 1rem; line-height: 1.2; font-weight: 600; letter-spacing: -0.02em; }
.board-view__meta { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 0.75rem 1.5rem; font-family: var(--mono); color: var(--muted); font-size: 0.78rem; margin: 0; padding-top: 1rem; border-top: 1px dashed var(--line); }
.board-view__meta dt { font-weight: normal; opacity: 0.7; }
.board-view__meta dd { margin: 0.2rem 0 0; color: var(--text); }
.board-view__thumb { margin-bottom: 2rem; }
.board-view__thumb img { width: 100%; max-height: 480px; object-fit: cover; display: block; }
.board-view__body { font-size: 1rem; line-height: 1.8; padding: 1.5rem 0; }
.board-view__footer { padding-top: 1.5rem; border-top: 1px solid var(--line); margin-top: 2rem; }

.btn { display: inline-block; padding: 0.5rem 1.5rem; border: 1px solid var(--line-strong); background: var(--surface); color: var(--text); font-family: var(--mono); font-size: 0.85rem; text-decoration: none; }
.btn:hover { background: var(--text); color: var(--surface); }

/* ---------- Footer ---------- */
.site-footer { padding: 2rem 0; background: var(--surface); border-top: 1px solid var(--line-strong); }
.site-footer__inner { max-width: 1320px; margin: 0 auto; padding: 0 2rem; color: var(--muted); font-family: var(--mono); font-size: 0.78rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
.site-footer__id { color: var(--text); }