/* StretchAI — Model Marketplace + per-model pages.
 * Qwen-style information architecture (featured rail, filter sidebar, rich cards,
 * sectioned model page with in-page nav) rendered in the dark StretchAI tokens. */

/* ============================ Featured rail ============================ */
.featured {
  display: grid; grid-auto-flow: column; grid-auto-columns: minmax(330px, 1fr);
  gap: 16px; overflow-x: auto; scroll-snap-type: x mandatory;
  padding: 4px 2px 14px; margin: 8px 0 4px; scrollbar-width: thin;
}
.featured::-webkit-scrollbar { height: 8px; }
.featured::-webkit-scrollbar-thumb { background: var(--ai-border-strong); border-radius: 999px; }
.fcard {
  scroll-snap-align: start; position: relative; isolation: isolate;
  min-height: 190px; border: 1px solid var(--ai-border); border-radius: var(--ai-radius-lg);
  overflow: hidden; background: var(--ai-panel); display: flex; transition: border-color .15s ease, transform .15s ease;
}
.fcard:hover { border-color: var(--ai-border-hover); transform: translateY(-2px); }
.fcard__art { position: absolute; inset: 0; z-index: -1; opacity: .9; }
.fcard__art::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(60% 70% at 18% 30%, var(--g1, rgba(110,231,210,.30)), transparent 70%),
    radial-gradient(70% 80% at 60% 90%, var(--g2, rgba(155,180,255,.26)), transparent 72%),
    radial-gradient(50% 60% at 90% 10%, var(--g3, rgba(225,140,200,.22)), transparent 70%);
  filter: blur(6px) saturate(120%);
}
.fcard__panel {
  margin-left: auto; width: 60%; background: linear-gradient(180deg, rgba(19,19,22,.86), rgba(19,19,22,.96));
  backdrop-filter: blur(6px); border-left: 1px solid var(--ai-border);
  padding: 18px; display: flex; flex-direction: column; gap: 7px;
}
.fcard__name { color: var(--ai-ink); font-weight: 600; font-size: 1.12rem; letter-spacing: -.01em; }
.fcard__tags { display: flex; flex-wrap: wrap; gap: 5px; }
.fcard__desc { color: var(--ai-muted); font-size: .82rem; line-height: 1.5; }
.fcard__foot { margin-top: auto; }
.tag {
  display: inline-flex; align-items: center; padding: 2px 8px; border-radius: 6px;
  font-size: .68rem; font-weight: 600; letter-spacing: .02em;
  background: var(--ai-accent-dim); color: var(--ai-accent);
}

/* ============================ Marketplace layout ============================ */
.market { display: grid; grid-template-columns: 232px 1fr; gap: 30px; align-items: start; margin-top: 20px; }
.market__sidebar { position: sticky; top: calc(var(--ai-nav-h) + 16px); display: flex; flex-direction: column; gap: 20px; }
.market__main { min-width: 0; }

.market__bar { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; flex-wrap: wrap; }
.market__search {
  flex: 1; min-width: 200px; display: flex; align-items: center; gap: 8px;
  background: var(--ai-panel); border: 1px solid var(--ai-border); border-radius: var(--ai-radius);
  padding: 0 12px; height: 40px; color: var(--ai-muted);
}
.market__search:focus-within { border-color: var(--ai-border-hover); }
.market__search svg { width: 15px; height: 15px; opacity: .6; flex: none; }
.market__search input { flex: 1; background: none; border: none; outline: none; color: var(--ai-ink); font: inherit; font-size: .9rem; }
.market__search input::placeholder { color: var(--ai-subtle); }
.market__sort {
  height: 40px; padding: 0 12px; border-radius: var(--ai-radius);
  background: var(--ai-panel); border: 1px solid var(--ai-border); color: var(--ai-body); font: inherit; font-size: .86rem; cursor: pointer;
}
.market__count { color: var(--ai-subtle); font-size: .84rem; white-space: nowrap; }

/* Filter groups */
.fgroup { border-top: 1px solid var(--ai-border); padding-top: 16px; }
.fgroup:first-child { border-top: none; padding-top: 0; }
.fgroup h5 { color: var(--ai-subtle); font-size: .72rem; text-transform: uppercase; letter-spacing: .09em; font-weight: 600; margin-bottom: 10px; }
.fopt { display: flex; align-items: center; gap: 9px; padding: 5px 0; color: var(--ai-body); font-size: .87rem; cursor: pointer; user-select: none; }
.fopt input { accent-color: var(--ai-accent); width: 14px; height: 14px; }
.fopt:hover { color: var(--ai-ink); }
.fopt .fcount { margin-left: auto; color: var(--ai-subtle); font-size: .76rem; font-variant-numeric: tabular-nums; }
.fclear { margin-top: 4px; background: none; border: none; color: var(--ai-link); font: inherit; font-size: .82rem; cursor: pointer; padding: 0; }
.fclear:hover { text-decoration: underline; }

/* ============================ Rich model cards ============================ */
.mgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(264px, 1fr)); gap: 14px; }
.mcard {
  display: flex; flex-direction: column; gap: 10px; padding: 18px;
  background: var(--ai-panel); border: 1px solid var(--ai-border); border-radius: var(--ai-radius);
  transition: border-color .15s ease, transform .15s ease, background .15s ease;
}
.mcard:hover { border-color: var(--ai-border-hover); transform: translateY(-2px); }
.mcard__top { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; }
.mcard__name { color: var(--ai-ink); font-weight: 600; font-size: 1.0rem; line-height: 1.25; }
.mcard__id { color: var(--ai-subtle); margin-top: 2px; }
.mcard__desc { color: var(--ai-muted); font-size: .85rem; line-height: 1.5;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.mcard__io { display: flex; align-items: center; gap: 7px; flex-wrap: wrap; }
.mcard__arrow { color: var(--ai-subtle); }
.mcard__spec { margin-top: auto; padding-top: 10px; border-top: 1px solid var(--ai-border);
  display: flex; gap: 16px; flex-wrap: wrap; }
.mcard__spec .s { display: flex; flex-direction: column; }
.mcard__spec .s b { color: var(--ai-ink); font-size: .86rem; font-weight: 600; font-variant-numeric: tabular-nums; }
.mcard__spec .s span { color: var(--ai-subtle); font-size: .68rem; text-transform: uppercase; letter-spacing: .06em; }

/* Modality glyph pills */
.glyph {
  display: inline-flex; align-items: center; gap: 4px; padding: 2px 7px 2px 5px;
  border-radius: 6px; background: var(--ai-panel-alt); border: 1px solid var(--ai-border);
  color: var(--ai-muted); font-size: .7rem; font-weight: 500;
}
.glyph svg { width: 12px; height: 12px; }
.glyph--text { color: var(--ai-body); }
.glyph--image { color: #c9b3ff; }
.glyph--audio { color: #ffd28a; }
.glyph--video { color: #ff9ecb; }
.glyph--vector, .glyph--code { color: var(--ai-accent); }

/* status chip extra variants reuse tokens; add incomplete/training/retired */
.chip--incomplete { background: rgba(245,191,120,.10); color: #e8b974; }
.chip--training   { background: rgba(155,220,255,.10); color: #9bdcff; }
.chip--retired    { background: rgba(255,255,255,.05); color: var(--ai-subtle); }

.empty { padding: 60px 20px; text-align: center; color: var(--ai-muted); border: 1px dashed var(--ai-border); border-radius: var(--ai-radius); }

/* ============================ Model page ============================ */
.modelpage { display: grid; grid-template-columns: 200px 1fr; gap: 40px; align-items: start; padding-top: 40px; }
.mnav { position: sticky; top: calc(var(--ai-nav-h) + 20px); display: flex; flex-direction: column; gap: 2px; }
.mnav a { color: var(--ai-muted); font-size: .88rem; padding: 6px 10px; border-radius: 7px; border-left: 2px solid transparent; transition: color .12s ease, background .12s ease; }
.mnav a:hover { color: var(--ai-ink); background: var(--ai-panel); }
.mnav a.active { color: var(--ai-ink); border-left-color: var(--ai-accent); }
.mbody { min-width: 0; }
.mback { color: var(--ai-muted); font-size: .84rem; }
.mback:hover { color: var(--ai-ink); }

.mhead { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin: 14px 0 6px; }
.mhead h1 { font-size: clamp(2rem, 4vw, 2.8rem); }
.mhead .mono { color: var(--ai-subtle); font-size: .9rem; }
.mtags { display: flex; flex-wrap: wrap; gap: 7px; margin: 12px 0 6px; }

.msec { padding: 30px 0; border-top: 1px solid var(--ai-border); scroll-margin-top: calc(var(--ai-nav-h) + 16px); }
.msec:first-of-type { border-top: none; }
.msec > h2 { font-size: 1.5rem; margin-bottom: 16px; }
.msec p { color: var(--ai-body); }

/* Input / Output panels */
.io-panels { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.io-panel { background: var(--ai-panel); border: 1px solid var(--ai-border); border-radius: var(--ai-radius); padding: 18px; min-height: 92px; }
.io-panel .k { font-size: .74rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ai-subtle); margin-bottom: 12px; }
.io-panel .mods { display: flex; flex-wrap: wrap; gap: 8px; }

/* Spec grid (reuse feature__spec visual) */
.specgrid { background: var(--ai-panel); border: 1px solid var(--ai-border); border-radius: var(--ai-radius-lg);
  padding: 22px; display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 18px 22px; }
.specgrid .cell .k { font-size: .72rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ai-subtle); }
.specgrid .cell .v { color: var(--ai-ink); font-weight: 600; margin-top: 5px; font-size: 1.0rem; }
.specgrid .cell .v small { display: block; font-weight: 400; color: var(--ai-muted); font-size: .76rem; margin-top: 2px; }

/* Feature checklist */
.featlist { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 16px; }
.feat { display: flex; align-items: center; gap: 10px; padding: 12px 14px; background: var(--ai-panel);
  border: 1px solid var(--ai-border); border-radius: var(--ai-radius); color: var(--ai-body); font-size: .9rem; }
.feat[data-on="false"] { color: var(--ai-subtle); opacity: .6; }
.feat .mark { width: 18px; height: 18px; flex: none; }
.feat[data-on="true"] .mark { color: var(--ai-live-ink); }
.feat[data-on="false"] .mark { color: var(--ai-subtle); }

/* Highlights */
.hlist { display: grid; gap: 8px; }
.hlist li { list-style: none; padding-left: 22px; position: relative; color: var(--ai-body); }
.hlist li::before { content: "›"; position: absolute; left: 4px; color: var(--ai-accent); font-weight: 700; }

/* Iterations / lineage table reuses .tbl */
.iter-note { color: var(--ai-muted); font-size: .88rem; margin-bottom: 14px; }

/* Code block (API reference) */
.codeblock { background: #08080a; border: 1px solid var(--ai-border); border-radius: var(--ai-radius); overflow: hidden; }
.codeblock__bar { display: flex; gap: 4px; padding: 8px 10px; border-bottom: 1px solid var(--ai-border); }
.codeblock__tab { background: none; border: none; color: var(--ai-muted); font: inherit; font-size: .8rem; padding: 4px 10px; border-radius: 6px; cursor: pointer; }
.codeblock__tab[aria-pressed="true"] { background: var(--ai-panel-alt); color: var(--ai-ink); }
.codeblock pre { margin: 0; padding: 16px; overflow-x: auto; }
.codeblock code { font-family: var(--ai-mono); font-size: .82rem; color: var(--ai-body); line-height: 1.6; }
.codeblock .cm { color: var(--ai-subtle); }
.codeblock .st { color: var(--ai-accent); }
.codeblock .kw { color: var(--ai-link); }

/* ============================ Responsive ============================ */
@media (max-width: 940px) {
  .market { grid-template-columns: 1fr; }
  .market__sidebar { position: static; flex-direction: row; flex-wrap: wrap; gap: 14px 24px; }
  .modelpage { grid-template-columns: 1fr; }
  .mnav { position: static; flex-direction: row; flex-wrap: wrap; overflow-x: auto; }
  .mnav a { border-left: none; border-bottom: 2px solid transparent; }
  .mnav a.active { border-left: none; border-bottom-color: var(--ai-accent); }
  .io-panels, .featlist { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .fcard__panel { width: 72%; }
}