/* skill-gallery: deliberately plain, neutral chrome so the generated pages stay the focus. */

:root {
  color-scheme: light;
  --bg: #f6f6f7;
  --surface: #ffffff;
  --surface-2: #ececee;
  --text: #1c1c1f;
  --muted: #5d5e66;
  --border: #dcdce0;
  --border-strong: #c3c4ca;
  --link: #2d55b8;
  --focus: #2d55b8;
  --ok: #1d6f42;
  --ok-bg: #e3f1e8;
  --fail: #ad2a22;
  --fail-bg: #f9e6e4;
  --warn: #855600;
  --warn-bg: #fbf0d9;
  --pending: #63646c;
  --pending-bg: #ececee;
  --radius: 8px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #131315;
    --surface: #1b1b1e;
    --surface-2: #26262a;
    --text: #e7e7ea;
    --muted: #a2a3ab;
    --border: #303036;
    --border-strong: #44454c;
    --link: #93b1ff;
    --focus: #93b1ff;
    --ok: #79d29d;
    --ok-bg: #16291e;
    --fail: #ff9b91;
    --fail-bg: #3a1916;
    --warn: #efc46e;
    --warn-bg: #33290f;
    --pending: #a2a3ab;
    --pending-bg: #26262a;
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #131315;
  --surface: #1b1b1e;
  --surface-2: #26262a;
  --text: #e7e7ea;
  --muted: #a2a3ab;
  --border: #303036;
  --border-strong: #44454c;
  --link: #93b1ff;
  --focus: #93b1ff;
  --ok: #79d29d;
  --ok-bg: #16291e;
  --fail: #ff9b91;
  --fail-bg: #3a1916;
  --warn: #efc46e;
  --warn-bg: #33290f;
  --pending: #a2a3ab;
  --pending-bg: #26262a;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.55 var(--font);
}

a { color: var(--link); text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
code, pre { font-family: var(--mono); font-size: 0.88em; }
h1, h2, h3, h4 { line-height: 1.25; margin: 0; }
h1 { font-size: clamp(1.5rem, 1.2rem + 1.4vw, 2.1rem); font-weight: 650; letter-spacing: -0.01em; }
h2 { font-size: 1.25rem; font-weight: 620; }
h3 { font-size: 1.02rem; font-weight: 620; }
h4 { font-size: 0.82rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); }
p { margin: 0.5rem 0; }
/* Per-language font stacks, so shared Han characters use the right regional glyphs. */
:root:lang(zh-CN) { --font: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif; }
:root:lang(zh-TW) { --font: system-ui, -apple-system, "PingFang TC", "Microsoft JhengHei", "Noto Sans CJK TC", "Source Han Sans TC", sans-serif; }
:root:lang(ja) { --font: system-ui, -apple-system, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", "Yu Gothic", Meiryo, "Noto Sans CJK JP", sans-serif; }
:root:lang(ko) { --font: system-ui, -apple-system, "Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans CJK KR", sans-serif; }
:root:lang(zh-CN) body, :root:lang(zh-TW) body, :root:lang(ja) body, :root:lang(ko) body { line-height: 1.7; }
pre[lang="en"] { font-family: var(--mono); }
.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.na { color: var(--muted); }
.yes { color: var(--ok); }
.no { color: var(--fail); }
.vh { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.wrap { width: 100%; max-width: 1280px; margin: 0 auto; padding: 0 16px; }

.skip { position: absolute; left: -999px; top: 8px; background: var(--surface); padding: 6px 10px; border-radius: 6px; z-index: 10; }
.skip:focus { left: 8px; }

/* header and footer */
.site-head { border-bottom: 1px solid var(--border); background: var(--surface); }
.site-head-inner { display: flex; align-items: center; gap: 8px 20px; min-height: 52px; flex-wrap: wrap; padding-top: 6px; padding-bottom: 6px; }
.brand { font-weight: 650; color: var(--text); text-decoration: none; font-size: 1rem; }
.site-nav { display: flex; gap: 4px 16px; flex-wrap: wrap; flex: 1; font-size: 0.92rem; }
.site-nav a { color: var(--muted); text-decoration: none; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--text); }
.site-foot { border-top: 1px solid var(--border); margin-top: 56px; padding: 20px 0 32px; color: var(--muted); font-size: 0.85rem; }

.head-tools { display: flex; align-items: center; gap: 8px; }
.lang-menu { position: relative; }
.lang-menu summary {
  list-style: none; cursor: pointer; display: inline-flex; align-items: center; gap: 4px;
  font-size: 0.85rem; color: var(--text); background: var(--surface); border: 1px solid var(--border-strong);
  border-radius: 6px; padding: 4px 10px; min-height: 32px; white-space: nowrap;
}
.lang-menu summary::-webkit-details-marker { display: none; }
.lang-menu summary::after { content: ""; width: 6px; height: 6px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: rotate(45deg) translate(-2px, -2px); margin-left: 4px; opacity: 0.6; }
.lang-menu ul { position: absolute; right: 0; top: calc(100% + 4px); z-index: 20; margin: 0; padding: 4px; list-style: none; min-width: 150px; background: var(--surface); border: 1px solid var(--border-strong); border-radius: 8px; box-shadow: 0 6px 24px rgb(0 0 0 / 0.14); }
.lang-menu a { display: block; padding: 6px 10px; border-radius: 5px; color: var(--text); text-decoration: none; font-size: 0.9rem; }
.lang-menu a:hover { background: var(--surface-2); }
.lang-menu a[aria-current="true"] { font-weight: 650; }
.lang-menu a[aria-current="true"]::before { content: "✓ "; }

.btn {
  display: inline-flex; align-items: center; gap: 6px;
  font: inherit; font-size: 0.85rem; color: var(--text); text-decoration: none;
  background: var(--surface); border: 1px solid var(--border-strong); border-radius: 6px;
  padding: 4px 10px; min-height: 32px; cursor: pointer;
}
.btn:hover { background: var(--surface-2); }

/* layout blocks */
.intro { padding: 28px 0 8px; max-width: 900px; }
.intro .lead { font-size: 1.05rem; }
.progress { font-size: 0.9rem; color: var(--muted); }
.block { margin-top: 36px; scroll-margin-top: 64px; }
.block > h2 { margin-bottom: 8px; }
.crumbs { padding-top: 18px; font-size: 0.85rem; color: var(--muted); }
.crumbs a { color: var(--muted); }

.cards { list-style: none; margin: 12px 0 0; padding: 0; display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; }
.card p { font-size: 0.9rem; }
.facts { color: var(--muted); font-size: 0.85rem; }

/* position: relative keeps absolutely positioned descendants (.vh labels) inside the scroller */
.scroll-x { position: relative; overflow-x: auto; overscroll-behavior-x: contain; margin: 12px -16px 0; padding: 0 16px 8px; }

/* overview matrix */
.matrix { display: grid; grid-template-columns: minmax(130px, 170px) repeat(var(--cols), minmax(200px, 1fr)); gap: 8px; min-width: min-content; }
.mx-corner, .mx-col { font-size: 0.85rem; font-weight: 600; padding: 4px 2px; align-self: end; }
.mx-col small, .mx-row small { display: block; font-weight: 400; color: var(--muted); font-size: 0.78rem; }
.mx-row { position: sticky; left: -16px; z-index: 1; background: var(--bg); padding: 8px 8px 8px 0; font-size: 0.92rem; font-weight: 600; }
.mx-cell { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 6px; }
.mini { display: block; color: var(--text); text-decoration: none; min-width: 0; }
.mini-label { display: flex; align-items: center; gap: 5px; font-size: 0.76rem; color: var(--muted); padding: 4px 2px 0; }
.mini:hover .thumb { border-color: var(--border-strong); }
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--pending); flex: none; }
.dot-ok { background: var(--ok); }
.dot-failed { background: var(--fail); }
.dot-partial { background: var(--warn); }
.dot-pending { background: transparent; border: 1px solid var(--pending); }
.dot-oos { background: var(--border-strong); }

/* thumbnails */
.thumb { position: relative; display: block; aspect-ratio: 4 / 3; overflow: hidden; border-radius: 6px; border: 1px solid var(--border); background: var(--surface-2); }
a.thumb { cursor: zoom-in; }
a.thumb:hover { border-color: var(--border-strong); }
.thumb .shot { display: block; width: 100%; height: 100%; object-fit: cover; object-position: top center; }
.thumb .shot-mobile { display: none; }
.shot-missing { place-items: center; font-size: 0.8rem; color: var(--muted); text-align: center; }
span.shot-desktop.shot-missing { display: grid; }
body[data-view="mobile"] .thumb:not(.thumb-mini) { aspect-ratio: 3 / 4; }
body[data-view="mobile"] .thumb:not(.thumb-mini) .shot-desktop { display: none; }
body[data-view="mobile"] .thumb:not(.thumb-mini) .shot-mobile { display: block; object-fit: contain; }
body[data-view="mobile"] .thumb:not(.thumb-mini) span.shot-mobile.shot-missing { display: grid; }
.thumb-empty {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px;
  color: var(--pending); font-size: 0.85rem; text-align: center; padding: 8px;
  border-style: dashed; border-color: var(--border-strong);
  background: repeating-linear-gradient(135deg, transparent 0 10px, color-mix(in srgb, var(--surface-2) 70%, transparent) 10px 20px);
}
.thumb-empty span:first-child { font-weight: 600; }
/* Out of scope: not waiting for anything, so no hatching. */
.thumb-empty[data-status="oos"] { background: var(--surface); border-style: solid; border-color: var(--border); color: var(--muted); }
.mx-cell .thumb-empty { font-size: 0.76rem; }

/* toolbar */
.toolbar { position: sticky; top: 0; z-index: 5; display: flex; flex-wrap: wrap; align-items: center; gap: 8px 16px; padding: 10px 0; margin-top: 16px; background: var(--bg); border-bottom: 1px solid var(--border); }
.jump { display: flex; flex-wrap: wrap; gap: 4px 14px; font-size: 0.88rem; }
.seg { display: inline-flex; border: 1px solid var(--border-strong); border-radius: 6px; overflow: hidden; background: var(--surface); }
.seg button { font: inherit; font-size: 0.85rem; color: var(--muted); background: transparent; border: 0; padding: 5px 12px; min-height: 32px; cursor: pointer; }
.seg button + button { border-left: 1px solid var(--border-strong); }
.seg button[aria-pressed="true"] { background: var(--text); color: var(--bg); }
.seg small { opacity: 0.7; font-size: 0.78em; }

/* skill page 2x2 */
.group { scroll-margin-top: 64px; }
.group-head { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; margin-bottom: 12px; }
.group-head a { color: var(--text); text-decoration: none; }
.group-head a:hover { text-decoration: underline; }
.quad { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }

/* prompt page comparison */
.compare { display: grid; grid-template-columns: 76px repeat(var(--cols), minmax(250px, 1fr)); gap: 12px; min-width: min-content; }
.cmp-col { font-weight: 600; font-size: 0.92rem; align-self: end; }
.cmp-row-label { position: sticky; left: -16px; z-index: 1; background: var(--bg); font-weight: 600; font-size: 0.9rem; padding-top: 10px; writing-mode: vertical-rl; transform: rotate(180deg); text-align: right; justify-self: center; }

/* cell card */
.cell { display: flex; flex-direction: column; gap: 8px; min-width: 0; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 10px; }
.cell-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.cell-title { font-size: 0.92rem; font-weight: 400; text-transform: none; letter-spacing: 0; color: var(--text); min-width: 0; overflow-wrap: anywhere; }
.cell-title b { font-weight: 650; }
.badge { flex: none; font-size: 0.72rem; font-weight: 600; padding: 1px 8px; border-radius: 999px; background: var(--pending-bg); color: var(--pending); }
.badge-ok { background: var(--ok-bg); color: var(--ok); }
.badge-failed { background: var(--fail-bg); color: var(--fail); }
.badge-partial { background: var(--warn-bg); color: var(--warn); }
.badge-pending { background: transparent; border: 1px dashed var(--border-strong); }
.badge-oos { background: transparent; border: 1px solid var(--border); color: var(--muted); }
.cell[data-status="oos"] { background: transparent; }
.meta { margin: 0; display: grid; grid-template-columns: max-content minmax(0, 1fr); gap: 2px 10px; font-size: 0.82rem; }
.kv { display: contents; }
.meta dt, .details dt, .facts-grid dt { color: var(--muted); }
.meta dd, .details dd, .facts-grid dd { margin: 0; min-width: 0; overflow-wrap: anywhere; }
.cell-note { margin: 0; font-size: 0.8rem; color: var(--muted); }
.cell-fail { color: var(--fail); }
.cell-warn { color: var(--warn); }
.cell-links { margin: auto 0 0; font-size: 0.85rem; }
.cell-votes { margin: 0; font-size: 0.85rem; }
.cell-tags { margin: 0; display: flex; flex-wrap: wrap; gap: 4px 6px; }
.chip { display: inline-block; font-size: 0.72rem; line-height: 1.5; padding: 0 7px; border-radius: 999px; border: 1px solid var(--border-strong); color: var(--muted); text-decoration: none; white-space: nowrap; }
a.chip:hover { color: var(--text); }
.chip.a11y-critical, .chip.a11y-serious { border-color: var(--fail); color: var(--fail); }
.chip.a11y-moderate { border-color: var(--warn); color: var(--warn); }
.chip.a11y-none { border-color: var(--ok); color: var(--ok); }
.video-box { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px; margin-top: 10px; }
.video-box video { display: block; width: 100%; height: auto; border: 1px solid var(--border); border-radius: var(--radius); background: #000; }
.vote-count { font-variant-numeric: tabular-nums; white-space: nowrap; }

/* showcase prompts, strengths, votes */
.real-name { font-weight: 400; color: var(--muted); font-size: 0.85em; white-space: nowrap; }
.real-name code { font-size: 0.95em; }
.tag { display: inline-block; vertical-align: middle; margin-left: 8px; font-size: 0.7rem; font-weight: 600; letter-spacing: 0.02em; padding: 1px 7px; border-radius: 999px; border: 1px solid var(--border-strong); color: var(--muted); }
.strengths { max-width: 900px; }
.claims { margin: 10px 0 0; padding-left: 1.2em; }
.claims li { margin: 6px 0; }
.claims .src { font-size: 0.82rem; white-space: nowrap; }
.scope { margin-top: 12px; }
.votes { max-width: 900px; }
.vote-now { font-size: 1.05rem; }
.votes .giscus { margin-top: 12px; min-height: 120px; }

.facts-grid { display: grid; grid-template-columns: max-content minmax(0, 1fr); gap: 4px 14px; margin: 14px 0; font-size: 0.9rem; }

/* install */
.two-col { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr)); gap: 12px; margin-top: 12px; }
.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; min-width: 0; }
.panel h4 { margin-top: 14px; margin-bottom: 6px; }
pre { margin: 0; background: var(--surface-2); border-radius: 6px; padding: 10px 12px; overflow-x: auto; line-height: 1.5; }
.install h3 { margin-top: 4px; }
.install > h3 { margin-top: 20px; }
.notes { padding-left: 1.2em; font-size: 0.88rem; }
.notes li { margin: 4px 0; overflow-wrap: anywhere; }

/* prompt text */
.prompt-text { margin-top: 12px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 8px 14px; }
.prompt-text summary { cursor: pointer; font-weight: 600; font-size: 0.92rem; }
.prompt-text pre { white-space: pre-wrap; margin-top: 10px; max-height: 60vh; overflow: auto; font-size: 0.82rem; }

/* method */
.table-wrap { overflow-x: auto; margin-top: 12px; }
.table { border-collapse: collapse; width: 100%; font-size: 0.9rem; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
.table th, .table td { text-align: left; padding: 8px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
.table thead th { font-size: 0.8rem; color: var(--muted); font-weight: 600; }
.table tr:last-child > * { border-bottom: 0; }
.method-list { margin: 16px 0 0; display: grid; gap: 14px; max-width: 900px; }
.method-list dt { font-weight: 620; }
.method-list dd { margin: 2px 0 0; }
.limits-h { margin-top: 22px; }
.limits { margin: 8px 0 0; padding-left: 1.2em; max-width: 900px; }
.limits li { margin: 6px 0; }

/* viewer */
.viewer-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px 20px; padding: 12px 0 4px; }
.viewer-head h1 { font-size: 1.3rem; }
.viewer-tools { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.frame-wrap { position: relative; height: max(480px, calc(100svh - 190px)); overflow: hidden; background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius); margin-top: 10px; }
.frame-wrap iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0; background: #fff; transform-origin: 0 0; }
.frame-empty { aspect-ratio: auto; height: 240px; margin-top: 10px; }
.details { display: grid; grid-template-columns: max-content minmax(0, 1fr); gap: 6px 16px; font-size: 0.88rem; margin: 12px 0 0; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; }
.checks, .refs { list-style: none; margin: 4px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 2px 14px; }
.refs { display: block; }

/* lightbox */
.lightbox { width: min(1480px, calc(100vw - 24px)); max-width: none; max-height: calc(100svh - 24px); padding: 0; border: 1px solid var(--border-strong); border-radius: var(--radius); background: var(--surface); color: var(--text); overflow: hidden; }
.lightbox::backdrop { background: rgb(0 0 0 / 0.6); }
.lightbox-bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 8px 10px 8px 14px; border-bottom: 1px solid var(--border); font-size: 0.88rem; }
.lightbox-body { overflow: auto; min-height: min(60svh, 640px); max-height: calc(100svh - 24px - 50px); background: var(--surface-2); }
.lightbox-body img { display: block; margin: 0 auto; max-width: 100%; height: auto; }
.lightbox[data-mode="mobile"] { width: min(440px, calc(100vw - 24px)); }

/* narrow screens */
@media (max-width: 640px) {
  body { font-size: 14.5px; }
  .site-head-inner { gap: 4px 14px; }
  .site-nav { order: 3; flex-basis: 100%; }
  .head-tools { margin-left: auto; }
  .toolbar { gap: 8px; }
  .jump { flex-wrap: nowrap; overflow-x: auto; white-space: nowrap; max-width: 100%; padding-bottom: 2px; }
  .block, .group { scroll-margin-top: 112px; }
  .matrix { grid-template-columns: 92px repeat(var(--cols), minmax(176px, 1fr)); gap: 6px; }
  .mx-row { font-size: 0.84rem; padding-right: 6px; }
  .quad { gap: 8px; }
  .cell { padding: 8px; gap: 6px; }
  .meta { grid-template-columns: 1fr; font-size: 0.78rem; gap: 0; }
  .meta dt { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.03em; margin-top: 4px; }
  /* Uppercasing would turn Latin names inside CJK labels into "SKILL"; keep them as written. */
  :root:lang(zh-CN) .meta dt, :root:lang(zh-TW) .meta dt, :root:lang(ja) .meta dt, :root:lang(ko) .meta dt { text-transform: none; letter-spacing: 0; font-size: 0.74rem; }
  .cell-head { flex-wrap: wrap; }
  .details, .facts-grid { grid-template-columns: 1fr; gap: 0; }
  .details dt, .facts-grid dt { margin-top: 8px; font-size: 0.8rem; }
  .frame-wrap { height: max(420px, calc(100svh - 230px)); }
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}