:root { color-scheme: light dark; --bg: #eef2ff; --surface: #f8faff; --border: #c9d2e6; --text: #27344a; --muted: #596981; --accent: #344e85; --hover: #e1e8f8; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 14px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible { outline: 3px solid #6388cd; outline-offset: 3px; }
[hidden] { display: none !important; }
.site-header { display: flex; align-items: center; gap: 28px; padding: 14px 28px; border-bottom: 1px solid var(--border); background: var(--surface); }
.wordmark { font-size: 18px; font-weight: 750; white-space: nowrap; letter-spacing: -.5px; }
.wordmark span { font-weight: 400; color: var(--muted); }
.board-links { display: flex; flex-wrap: wrap; gap: 6px 14px; flex: 1; font-family: monospace; }
.board-links a[aria-current] { font-weight: bold; text-decoration: underline; }
.account-link { font-size: 12px; }
main { max-width: 1680px; margin: auto; padding: 30px 28px 0; }
.catalog-heading { display: flex; justify-content: space-between; align-items: end; gap: 20px; margin-bottom: 24px; }
.eyebrow { color: var(--muted); font-size: 10px; letter-spacing: 2px; font-weight: 700; margin: 0 0 4px; }
h1 { font-size: 30px; line-height: 1.3; margin: 0; letter-spacing: -.7px; }
h1 span { font-size: 18px; font-weight: 400; color: var(--muted); margin-left: 8px; letter-spacing: 0; }
.view-tabs { display: flex; gap: 4px; padding: 4px; border: 1px solid var(--border); border-radius: 6px; white-space: nowrap; }
.view-tabs a { padding: 5px 13px; border-radius: 3px; }
.view-tabs a[aria-current] { background: var(--accent); color: var(--surface); }
.catalog-toolbar { display: flex; gap: 12px; align-items: end; padding: 16px; background: var(--surface); border: 1px solid var(--border); border-radius: 6px; }
.catalog-toolbar label { display: block; font-size: 11px; font-weight: 600; margin-bottom: 5px; color: var(--muted); }
.search-field { flex: 1; }
input, select, button { font: inherit; height: 36px; border: 1px solid var(--border); border-radius: 4px; padding: 0 10px; background: var(--surface); color: var(--text); }
input { width: 100%; min-width: 0; }
input::placeholder { color: var(--muted); }
button { cursor: pointer; }
.apply-button { background: var(--accent); color: var(--surface); border-color: var(--accent); padding-inline: 18px; }
.size-field { padding-left: 12px; border-left: 1px solid var(--border); }
.catalog-summary { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 6px 16px; padding: 14px 0 18px; font-size: 12px; color: var(--muted); }
.catalog-summary p { margin: 0; }
.catalog-summary a { margin-left: 8px; }
.catalog-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 24px 18px; align-items: start; }
body[data-size="small"] .catalog-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 18px 14px; }
body[data-size="large"] .catalog-grid { grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); }
.catalog-card { min-width: 0; overflow-wrap: anywhere; }
.thread-preview { display: flex; justify-content: center; align-items: center; height: 180px; overflow: hidden; border: 1px solid var(--border); border-radius: 4px; background: var(--surface); }
.thread-preview:hover { border-color: var(--accent); background: var(--hover); text-decoration: none; }
.thread-preview img { display: block; width: 100%; height: 100%; object-fit: contain; }
.image-placeholder { color: var(--muted); font-size: 13px; text-align: center; }
.image-placeholder span { display: block; font-size: 11px; margin-top: 5px; opacity: .8; }
.thread-counts { display: flex; align-items: center; flex-wrap: wrap; gap: 9px; font-size: 11px; color: var(--muted); padding-top: 7px; }
.thread-counts strong { color: var(--text); font-weight: 600; }
.thread-badge { font-size: 9px; border: 1px solid var(--border); padding: 0 4px; border-radius: 3px; margin-left: auto; }
.catalog-card h2 { font-size: 13px; line-height: 1.45; margin: 5px 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.thread-excerpt { font-size: 12px; margin: 0; display: -webkit-box; -webkit-line-clamp: 5; -webkit-box-orient: vertical; overflow: hidden; }
.empty-excerpt { color: var(--muted); font-style: italic; }
.thread-footer { display: flex; justify-content: space-between; gap: 8px; margin-top: 8px; font-size: 10px; color: var(--muted); }
.thread-footer a { color: var(--muted); }
body[data-size="small"] .thread-preview { height: 130px; }
body[data-size="small"] .thread-excerpt { -webkit-line-clamp: 3; }
body[data-size="large"] .thread-preview { height: 240px; }
body[data-size="large"] .thread-excerpt { -webkit-line-clamp: 7; }
.catalog-pagination { display: flex; justify-content: center; align-items: center; gap: 32px; border-top: 1px solid var(--border); margin-top: 30px; padding: 24px 0; }
.catalog-pagination [aria-disabled] { opacity: .45; }
.catalog-pagination a { padding: 7px 14px; border: 1px solid var(--border); border-radius: 4px; background: var(--surface); }
.empty-catalog { grid-column: 1 / -1; padding: 60px 20px; text-align: center; color: var(--muted); }
.site-footer { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; border-top: 1px solid var(--border); margin-top: 8px; padding: 20px 28px; color: var(--muted); font-size: 11px; }
@media (max-width: 640px) {
    .site-header { gap: 10px; padding: 12px 16px; flex-wrap: wrap; }
    .board-links { order: 3; flex-basis: 100%; }
    .account-link { margin-left: auto; }
    main { padding: 22px 14px 0; }
    .catalog-heading { align-items: start; flex-wrap: wrap; gap: 12px; margin-bottom: 16px; }
    h1 { font-size: 25px; } h1 span { font-size: 15px; }
    .catalog-toolbar { flex-wrap: wrap; padding: 12px; gap: 10px; }
    .search-field { flex-basis: 100%; }
    .sort-field { flex: 1; } .sort-field select { width: 100%; }
    .size-field { padding: 0; border: 0; flex-basis: 100%; }
    .size-field label { display: inline; margin-right: 8px; }
    .catalog-grid, body[data-size="small"] .catalog-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px 12px; }
    body[data-size="large"] .catalog-grid { grid-template-columns: 1fr; }
    .thread-preview { height: 160px; }
    .catalog-pagination { gap: 12px; font-size: 12px; }
    .catalog-pagination a { padding: 7px 10px; }
    .site-footer { padding: 18px 14px; }
}
@media (prefers-color-scheme: dark) {
    :root { --bg: #1b212d; --surface: #242d3c; --border: #3c495e; --text: #dde4ef; --muted: #a5b1c5; --accent: #aec9ff; --hover: #2e3b50; }
}