/* ImageGen Tracker. Palette, dark theme and Lato/PingFang type stack borrowed from theodoruszq/x-digest;
   layout is its own: centered News/Demos tabs, single page, compact masonry + lightbox. */
@font-face { font-family: Lato; font-style: normal; font-weight: 400; font-display: swap;
  src: local('Lato Regular'), local('Lato-Regular'), url('fonts/lato-regular.woff2') format('woff2'); }
@font-face { font-family: Lato; font-style: normal; font-weight: 700; font-display: swap;
  src: local('Lato Bold'), local('Lato-Bold'), url('fonts/lato-bold.woff2') format('woff2'); }
:root {
  color-scheme: light;
  --bg: #fff; --text: #171717; --body: #2e2e2e; --muted: #737373; --faint: #a3a3a3;
  --link: #1772d0; --subtle-link: #557a9e; --hover: #f09228;
  --switch-off: #d4d4d8; --cjk: 'PingFang SC', 'Hiragino Sans GB', 'Noto Sans CJK SC', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
  --rule: #ececec; --quote-rule: #ddd; --zh: #8a5a1c; --zh-bg: #fbf6ee; --zh-line: #f0d9b5; --img-bg: #f1f1f2; --tab-bg: #f4f4f5;
  --sans: Lato, 'PingFang SC', 'Hiragino Sans GB', 'Noto Sans CJK SC', 'Noto Sans SC', 'Microsoft YaHei', Verdana, Helvetica, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, 'Noto Sans Mono CJK SC', monospace;
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #141414; --text: #ececec; --body: #d4d4d4; --muted: #9a9a9a; --faint: #666;
  --link: #6eaaf0; --subtle-link: #8fb0d0; --hover: #f5a54a;
  --switch-off: #48484c; --rule: #262626; --quote-rule: #3a3a3a; --zh: #e0b878; --zh-bg: #1f1b15; --zh-line: #4a3b25; --img-bg: #1f1f1f; --tab-bg: #1f1f1f;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #141414; --text: #ececec; --body: #d4d4d4; --muted: #9a9a9a; --faint: #666;
    --link: #6eaaf0; --subtle-link: #8fb0d0; --hover: #f5a54a;
    --switch-off: #48484c; --rule: #262626; --quote-rule: #3a3a3a; --zh: #e0b878; --zh-bg: #1f1b15; --zh-line: #4a3b25; --img-bg: #1f1f1f; --tab-bg: #1f1f1f;
  }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--sans); font-size: 14px; line-height: 1.75;
  -webkit-text-size-adjust: 100%; -webkit-font-smoothing: antialiased; }
body.lb-open { overflow: hidden; }
a { color: var(--link); text-decoration: none; }
a:hover { color: var(--hover); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--link); outline-offset: 2px; border-radius: 4px; }
p { margin: 0 0 12px; }
h2, h3 { margin: 0; font-weight: 700; line-height: 1.45; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* top bar: two centered tabs + small theme icon */
.topbar { position: sticky; top: 0; z-index: 10; display: flex; justify-content: center; align-items: center; padding: 14px 16px;
  background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: saturate(1.4) blur(8px); -webkit-backdrop-filter: saturate(1.4) blur(8px); border-bottom: 1px solid var(--rule); }
.tabs { display: inline-flex; gap: 4px; padding: 4px; border-radius: 999px; background: var(--tab-bg); }
.tab { display: inline-block; min-width: 108px; padding: 7px 22px; border-radius: 999px; color: var(--muted); font-size: 15px; font-weight: 700; text-align: center; letter-spacing: .02em; transition: background .15s, color .15s; }
.tab:hover { color: var(--text); }
.tab.on { background: var(--bg); color: var(--text); box-shadow: 0 1px 3px rgba(0,0,0,.12), 0 0 0 1px var(--rule); }
.theme-btn { position: absolute; right: 14px; top: 50%; transform: translateY(-50%); appearance: none; border: 0; background: none; color: var(--faint);
  width: 32px; height: 32px; border-radius: 50%; cursor: pointer; display: grid; place-items: center; }
.theme-btn:hover { color: var(--text); background: var(--tab-bg); }

/* panels (no-JS: both visible) */
.js:not(.tab-demos) #panel-demos, .js.tab-demos #panel-news { display: none; }
main { padding: 10px 0 0; }
.panel.news { max-width: 760px; margin: 0 auto; padding: 0 20px; }
.panel.demos { max-width: 1440px; margin: 0 auto; padding: 0 16px; }
.lede { color: var(--muted); font-size: 13px; text-align: center; margin: 0 0 16px; }

/* news list */
.news-item { padding: 16px 0 14px; border-top: 1px solid var(--rule); }
.news-item .item-title { font-size: 16px; color: var(--text); text-wrap: pretty; }
.news-item:not(.rich) .item-title { font-size: 15px; }
.item-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 2px 7px; margin: 4px 0 6px; color: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; }
.item-meta .handle { color: var(--subtle-link); }
.dot { color: var(--faint); }
.ts { color: var(--faint); white-space: nowrap; }
.model-tag { display: inline-block; padding: 0 7px; border-radius: 4px; background: var(--zh-bg); color: var(--zh); font-size: 12px; line-height: 1.7; font-weight: 400; }
.points { margin: 4px 0 6px; padding: 0; list-style: none; color: var(--body); line-height: 1.7; }
.points li { position: relative; padding-left: 14px; margin: 2px 0; overflow-wrap: anywhere; }
.points li::before { content: ""; position: absolute; left: 2px; top: .78em; width: 4px; height: 4px; border-radius: 50%; background: var(--faint); }
.unconf { padding: 0 4px; border-radius: 3px; background: rgba(224, 36, 94, .1); color: #c0264f; font-size: 12px; white-space: nowrap; }
:root[data-theme="dark"] .unconf { color: #f07c9c; }
.srcs { margin-top: 6px; }
.orig { display: inline-flex; align-items: center; gap: 3px; color: var(--link); }
.src-lab { font-weight: 700; }
.src.com .src-lab { color: var(--muted); font-weight: 400; }
.ext { flex: none; transition: transform .15s ease; }
.orig:hover .ext { transform: translate(1px, -1px); }

/* demo chips */
.chips { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; margin: 0 0 14px; }
.chip { appearance: none; border: 1px solid var(--rule); background: var(--bg); padding: 3px 11px; border-radius: 999px; color: var(--muted); font: inherit; font-size: 12.5px; cursor: pointer; }
.chip:hover { color: var(--text); border-color: var(--quote-rule); }
.chip.on { background: var(--text); color: var(--bg); border-color: var(--text); }
.chip .n { margin-left: 4px; opacity: .6; font-size: 11px; }

/* compact masonry (JS column stacks) */
.wall { display: flex; gap: 10px; align-items: flex-start; }
.wall-col { flex: 1 1 0; min-width: 0; display: flex; flex-direction: column; gap: 10px; }
.card { position: relative; display: block; border-radius: 6px; overflow: hidden; background: var(--img-bg); color: var(--text); }
.card img { display: block; width: 100%; height: auto; transition: transform .25s ease, filter .25s ease; }
.card:hover img { transform: scale(1.025); filter: brightness(.95); }
.card .count { position: absolute; top: 6px; right: 6px; padding: 0 6px; border-radius: 9px; background: rgba(0,0,0,.55); color: #fff; font-size: 11px; line-height: 1.6; }
.cap { display: flex; align-items: center; gap: 6px; padding: 6px 8px 7px; background: var(--bg); border: 1px solid var(--rule); border-top: 0; border-radius: 0 0 6px 6px; font-size: 12px; line-height: 1.45; }
.cap .model-tag { flex: none; font-size: 11px; padding: 0 5px; }
.cap-t { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--body); }
.card:hover .cap-t { color: var(--hover); }

/* lightbox */
.lb { position: fixed; inset: 0; z-index: 50; display: grid; grid-template-columns: minmax(0, 1fr) 400px; background: rgba(10,10,10,.92); }
.lb-stage { position: relative; display: grid; place-items: center; padding: 24px 56px; min-height: 0; touch-action: pan-y; }
.lb-img { max-width: 100%; max-height: calc(100vh - 48px); width: auto; height: auto; object-fit: contain; border-radius: 4px; background: #222; }
.lb-nav { position: absolute; top: 50%; transform: translateY(-50%); width: 44px; height: 64px; border: 0; border-radius: 8px; background: rgba(255,255,255,.08); color: #fff; font-size: 34px; line-height: 1; cursor: pointer; }
.lb-nav:hover { background: rgba(255,255,255,.18); }
.lb-prev { left: 8px; } .lb-next { right: 8px; }
.lb-pos { position: absolute; bottom: 10px; left: 50%; transform: translateX(-50%); color: #ddd; font-size: 12px; }
.lb-side { position: relative; overflow-y: auto; background: var(--bg); color: var(--text); padding: 44px 22px 24px; }
.lb-close { position: absolute; top: 10px; right: 12px; width: 32px; height: 32px; border: 0; border-radius: 50%; background: var(--tab-bg); color: var(--text); font-size: 15px; cursor: pointer; }
.lb-side .item-title { font-size: 16px; }
.facts { display: grid; grid-template-columns: 44px minmax(0, 1fr); gap: 1px 10px; margin: 10px 0 12px; padding: 10px 0; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); font-size: 12.5px; }
.facts dt { color: var(--muted); } .facts dd { margin: 0; overflow-wrap: anywhere; }
.prompt-head { display: flex; justify-content: space-between; align-items: center; color: var(--muted); font-size: 12px; }
.prompt-head button { appearance: none; border: 1px solid var(--rule); background: var(--bg); color: var(--link); border-radius: 999px; padding: 1px 10px; font: inherit; font-size: 12px; cursor: pointer; }
.prompt-head button:hover { color: var(--hover); }
.prompt-text { margin: 6px 0 0; padding: 10px 12px; border-left: 2px solid var(--zh-line); background: var(--zh-bg); color: var(--body); border-radius: 0 4px 4px 0;
  font-family: var(--mono); font-size: 12px; line-height: 1.6; white-space: pre-wrap; overflow-wrap: anywhere; }
.prompt-none { color: var(--faint); font-size: 12px; }
.src-note { color: var(--muted); font-size: 11.5px; margin: 6px 0 0; overflow-wrap: anywhere; }
.lb-links { display: flex; flex-wrap: wrap; gap: 14px; margin: 14px 0 0; font-size: 13px; }

.site-footer { margin: 40px auto 28px; padding: 0 20px; color: var(--muted); font-size: 11px; text-align: center; }
.site-footer p { margin: 0; } .site-footer a { color: inherit; } .site-footer a:hover { color: var(--link); }

@media (max-width: 900px) {
  .lb { grid-template-columns: 1fr; grid-template-rows: minmax(0, 58vh) minmax(0, 1fr); }
  .lb-stage { padding: 12px 44px; } .lb-img { max-height: calc(58vh - 24px); }
  .lb-side { padding: 16px 16px 24px; } .lb-close { position: fixed; top: 10px; right: 10px; z-index: 2; background: rgba(0,0,0,.5); color: #fff; }
}
@media (max-width: 560px) {
  .topbar { padding: 10px 12px; justify-content: flex-start; } .tabs { margin: 0 auto; }
  .tab { min-width: 88px; padding: 6px 16px; font-size: 14px; }
  .theme-btn { right: 8px; }
  .panel.news { padding: 0 16px; } .panel.demos { padding: 0 8px; }
  .wall, .wall-col { gap: 8px; }
  .lb-nav { width: 34px; height: 52px; font-size: 26px; } .lb-stage { padding: 10px 38px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }

/* highlighted key facts in news bullets (**bold** / ==mark==) */
.hl { font-weight: 700; color: var(--text); background: linear-gradient(transparent 58%, var(--hl-bg) 58%); padding: 0 1px; }
mark { background: var(--hl-bg); color: var(--text); padding: 0 2px; border-radius: 2px; }
:root { --hl-bg: rgba(240, 146, 40, .22); }
:root[data-theme="dark"] { --hl-bg: rgba(245, 165, 74, .22); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) { --hl-bg: rgba(245, 165, 74, .22); } }
.news-item[lang="en"] .points { font-family: var(--sans); }

/* ---- copied from theodoruszq/x-digest src/style.css: .zh-switch toggle + Chinese glosses (html.show-zh) ---- */
:lang(zh-Hans) { font-family: var(--cjk); }
.zh-switch {
  appearance: none; display: none; align-items: center; gap: 7px; padding: 4px 0; min-height: 32px; margin: 0;
  border: 0; background: none; color: var(--muted); font: inherit; font-size: 12px; cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.js .zh-switch { display: inline-flex; }
.zh-switch-label { font-family: var(--cjk); line-height: 1; transition: color .2s; }
.zh-switch-track {
  position: relative; flex: none; width: 34px; height: 20px; border-radius: 999px;
  background: var(--switch-off); transition: background-color .22s ease;
}
.zh-switch-knob {
  position: absolute; top: 2px; left: 2px; width: 16px; height: 16px; border-radius: 50%; background: #fff;
  box-shadow: 0 1px 2px rgba(0, 0, 0, .25), 0 1px 1px rgba(0, 0, 0, .08);
  transition: transform .22s cubic-bezier(.3, .7, .4, 1);
}
.zh-switch:hover .zh-switch-label { color: var(--text); }
.zh-switch:focus-visible { outline: none; }
.zh-switch:focus-visible .zh-switch-track { outline: 2px solid var(--link); outline-offset: 2px; }
.show-zh .zh-switch-track, .zh-switch[aria-checked="true"] .zh-switch-track { background: var(--link); }
.show-zh .zh-switch-knob, .zh-switch[aria-checked="true"] .zh-switch-knob { transform: translateX(14px); }
.show-zh .zh-switch-label { color: var(--text); }
.zh-only { display: none; }
.show-zh .g { text-decoration: underline; text-decoration-color: var(--zh-line); text-decoration-thickness: 2px; text-underline-offset: 3px; }
.show-zh .g-zh { display: inline; margin: 0 1px 0 4px; padding: 0 5px; border-radius: 3px; background: var(--zh-bg);
  color: var(--zh); font-size: 12px; font-weight: 400; line-height: 1.6; white-space: normal; -webkit-box-decoration-break: clone; box-decoration-break: clone; }
.show-zh .g-zh i { font-family: var(--sans); font-style: italic; opacity: .75; margin-right: 1px; }
/* adaptations for this site: placement in the top bar; glosses inside <pre> prompts and bold facts */
.topbar .zh-switch { position: absolute; right: 52px; top: 50%; transform: translateY(-50%); }
.prompt-text .g-zh { font-family: var(--cjk); }
.hl .g-zh, .item-title .g-zh { font-weight: 400; }
@media (max-width: 560px) { .topbar .zh-switch { right: 44px; } .topbar .zh-switch .zh-switch-label { display: none; } }
.lb-h { font-size: 12px; font-weight: 400; color: var(--muted); margin: 16px 0 4px; }
.post-text { margin: 0; padding: 0 0 0 12px; border-left: 2px solid var(--quote-rule); color: var(--body); font-size: 13px; line-height: 1.7; white-space: pre-wrap; overflow-wrap: anywhere; }