/* ══════════════════════════════════════════════════════════
   dot+ Build Hub — portal stylesheet
   Extends brand-system.css tokens. Same mono foundation.
   ══════════════════════════════════════════════════════════ */

/* ── Status chips ─────────────────────────────────────────── */
.st{display:inline-flex;align-items:center;gap:5px;font-family:var(--fm);font-size:9px;font-weight:600;letter-spacing:.09em;text-transform:uppercase;padding:3px 8px;border-radius:5px;line-height:1;white-space:nowrap;flex:none}
.st::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;flex:none}
.st.locked{background:rgba(5,148,79,.14);color:var(--positive)}
.st.ref{background:var(--bg-3);color:var(--fg-3)}
.st.ref::before{background:var(--fg-4)}
.st.wip{background:rgba(187,122,0,.15);color:var(--warning)}
.st.build{background:rgba(39,110,241,.15);color:var(--info)}
.st.adapt{background:rgba(225,25,0,.14);color:var(--negative)}

/* ── Launcher grid + tiles ────────────────────────────────── */
.launch{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:8px}
@media(max-width:980px){.launch{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.launch{grid-template-columns:1fr}}
.tile{display:flex;flex-direction:column;background:var(--bg-2);border:1px solid var(--line);border-radius:14px;padding:18px 18px 16px;text-decoration:none;color:inherit;transition:.12s;position:relative;min-height:150px}
.tile:hover{border-color:var(--fg-3);background:var(--bg-3);transform:translateY(-1px)}
.tile-top{display:flex;align-items:center;gap:8px;margin-bottom:14px}
.tile-cat{font-family:var(--fm);font-size:9px;color:var(--fg-4);letter-spacing:.12em;text-transform:uppercase}
.tile-top .st{margin-left:auto}
.tile-nm{font-size:16.5px;font-weight:700;letter-spacing:-.02em;line-height:1.15;margin-bottom:6px}
.tile-d{font-size:12.5px;color:var(--fg-2);line-height:1.5;text-wrap:pretty}
.tile-go{margin-top:auto;padding-top:14px;display:flex;align-items:center;gap:7px;font-family:var(--fm);font-size:10px;color:var(--fg-3);letter-spacing:.04em}
.tile-go .fx{margin-left:auto;font-size:14px;transition:.12s;color:var(--fg-3)}
.tile:hover .tile-go .fx{transform:translateX(3px);color:var(--fg)}
.tile-go svg{width:14px;height:14px;stroke:currentColor;stroke-width:1.6;fill:none;stroke-linecap:round;stroke-linejoin:round}

/* ── Feature block (macOS front-and-center) ───────────────── */
.feature{display:grid;grid-template-columns:1.15fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden;margin-top:10px}
@media(max-width:900px){.feature{grid-template-columns:1fr}}
.feature .fembed{background:var(--bg);position:relative;min-height:360px;overflow:hidden;display:flex}
.feature .fembed iframe{width:100%;height:100%;border:0;display:block}
.feature .fembed .fbadge{position:absolute;top:14px;left:14px;z-index:3}
.feature .fbody{background:var(--bg-2);padding:30px 30px 26px;display:flex;flex-direction:column}
.feature .feye{font-family:var(--fm);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--negative);margin-bottom:16px;display:flex;align-items:center;gap:8px}
.feature .feye::before{content:"";width:18px;height:1.5px;background:var(--negative)}
.feature .fbody h3{font-size:26px;font-weight:800;letter-spacing:-.03em;line-height:1.05;margin-bottom:12px}
.feature .fbody p{font-size:14px;color:var(--fg-2);line-height:1.6;text-wrap:pretty;margin-bottom:18px}
.fcta{display:flex;gap:10px;flex-wrap:wrap;margin-top:auto}
.abtn{display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 18px;border-radius:9px;font-size:13.5px;font-weight:600;text-decoration:none;font-family:var(--fs);cursor:pointer;border:none;transition:.12s}
.abtn.primary{background:var(--fg);color:var(--bg)}
.abtn.primary:hover{background:var(--fg-2)}
.abtn.ghost{background:transparent;color:var(--fg);border:1px solid var(--line-2)}
.abtn.ghost:hover{border-color:var(--fg-3);background:var(--bg-3)}
.abtn svg{width:15px;height:15px;stroke:currentColor;stroke-width:1.7;fill:none;stroke-linecap:round;stroke-linejoin:round}

/* mini state chips inside feature */
.fstates{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:20px}
.fstates .fs{font-family:var(--fm);font-size:10px;color:var(--fg-2);background:var(--bg-3);border:1px solid var(--line-2);padding:4px 9px;border-radius:6px}

/* ── Embed frame (guide page) ─────────────────────────────── */
.embed{background:var(--bg);border:1px solid var(--line);border-radius:16px;overflow:hidden;margin-top:16px}
.embed-bar{display:flex;align-items:center;gap:9px;padding:11px 16px;background:var(--bg-2);border-bottom:1px solid var(--line)}
.embed-bar .dots{display:flex;gap:6px}
.embed-bar .dots i{width:10px;height:10px;border-radius:50%;background:var(--bg-4)}
.embed-bar .etitle{font-family:var(--fm);font-size:11px;color:var(--fg-3);letter-spacing:.03em}
.embed-bar .eopen{margin-left:auto;font-family:var(--fm);font-size:10px;color:var(--info);text-decoration:none;display:flex;align-items:center;gap:6px}
.embed-bar .eopen:hover{color:var(--fg)}
.embed .eframe{width:100%;height:560px;border:0;display:block;background:var(--bg)}

/* ── Code blocks ──────────────────────────────────────────── */
.codesplit{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:16px}
@media(max-width:900px){.codesplit{grid-template-columns:1fr}}
.code{background:var(--mono-1000);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.code-hd{display:flex;align-items:center;gap:9px;padding:9px 14px;background:var(--bg-2);border-bottom:1px solid var(--line)}
.code-lang{font-family:var(--fm);font-size:9px;color:var(--info);letter-spacing:.1em;text-transform:uppercase;font-weight:600}
.code-fn{font-family:var(--fm);font-size:10.5px;color:var(--fg-3)}
.copybtn{margin-left:auto;font-family:var(--fm);font-size:9.5px;color:var(--fg-3);background:var(--bg-3);border:1px solid var(--line-2);border-radius:6px;padding:4px 9px;cursor:pointer;letter-spacing:.04em;text-transform:uppercase;transition:.12s;display:flex;align-items:center;gap:5px}
.copybtn:hover{color:var(--fg);border-color:var(--fg-3)}
.copybtn.done{color:var(--positive);border-color:rgba(5,148,79,.4)}
.code pre{margin:0;padding:16px 18px;overflow-x:auto}
.code code{font-family:var(--fm);font-size:12px;line-height:1.65;color:var(--fg-2);white-space:pre;display:block}
.code .k{color:#C792EA}.code .t{color:#82AAFF}.code .s{color:#C3E88D}.code .n{color:#F78C6C}.code .c{color:var(--fg-4)}.code .p{color:var(--fg)}
.code::-webkit-scrollbar{height:8px}.code pre::-webkit-scrollbar{height:8px}

/* ── Component spec rows (guide) ──────────────────────────── */
.spec{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:16px}
@media(max-width:900px){.spec{grid-template-columns:1fr}}
.speccard{background:var(--bg-2);border:1px solid var(--line);border-radius:14px;overflow:hidden;display:flex;flex-direction:column}
.speccard .sh{display:flex;align-items:center;gap:10px;padding:15px 18px;border-bottom:1px solid var(--line)}
.speccard .sh .cn{font-size:15px;font-weight:700;letter-spacing:-.01em}
.speccard .sh .cls{margin-left:auto;font-family:var(--fm);font-size:9px;letter-spacing:.06em;text-transform:uppercase;padding:2px 7px;border-radius:4px;background:var(--bg-3);color:var(--fg-3)}
.speccard .sh .cls.ext{background:rgba(39,110,241,.14);color:var(--info)}
.speccard .demo{padding:22px 18px;background:var(--bg);border-bottom:1px solid var(--line);display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:center;min-height:96px}
.speccard .contract{padding:15px 18px;font-size:12px;color:var(--fg-2);line-height:1.6}
.speccard .contract b{color:var(--fg);font-weight:600}
.speccard .contract .mac{margin-top:10px;padding-top:10px;border-top:1px solid var(--line);color:var(--fg-3);font-size:11.5px}
.speccard .contract .mac b{color:var(--info)}

/* ── Platform translation map ─────────────────────────────── */
.xmap{display:grid;grid-template-columns:1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-top:16px}
.xrow{display:grid;grid-template-columns:1fr 24px 1.4fr;gap:16px;align-items:center;background:var(--bg-2);padding:14px 18px}
.xrow.head{background:var(--bg-2);grid-template-columns:1fr 24px 1.4fr}
.xrow.head span{font-family:var(--fm);font-size:9px;color:var(--fg-4);letter-spacing:.1em;text-transform:uppercase}
.xrow .ios{font-size:13px;font-weight:600}
.xrow .ios .sub{display:block;font-family:var(--fm);font-size:10px;color:var(--fg-4);font-weight:400;margin-top:2px;letter-spacing:.02em}
.xrow .arr{color:var(--negative);font-size:15px;text-align:center}
.xrow .mac{font-size:12.5px;color:var(--fg-2);line-height:1.5}
.xrow .mac code{font-family:var(--fm);font-size:11px;color:var(--info);background:var(--bg-3);padding:1px 6px;border-radius:4px}

/* ── Checklist ────────────────────────────────────────────── */
.check{background:var(--bg-2);border:1px solid var(--line);border-radius:14px;overflow:hidden;margin-top:16px}
.crow{display:grid;grid-template-columns:26px 1.1fr 1.6fr auto;gap:16px;align-items:center;padding:14px 18px;border-bottom:1px solid var(--line)}
.crow:last-child{border-bottom:none}
.crow.head{background:transparent;padding:11px 18px}
.crow.head span{font-family:var(--fm);font-size:9px;color:var(--fg-4);letter-spacing:.1em;text-transform:uppercase}
.crow .cbox{width:20px;height:20px;border-radius:6px;border:1.5px solid var(--line-2);display:flex;align-items:center;justify-content:center}
.crow .cbox svg{width:12px;height:12px;stroke:var(--positive);stroke-width:2.4;fill:none;stroke-linecap:round;stroke-linejoin:round;opacity:0}
.crow.done .cbox{background:rgba(5,148,79,.14);border-color:rgba(5,148,79,.4)}
.crow.done .cbox svg{opacity:1}
.crow .cs-nm{font-size:14px;font-weight:600;letter-spacing:-.01em}
.crow .cs-src{font-family:var(--fm);font-size:10px;color:var(--fg-4);margin-top:3px;letter-spacing:.02em}
.crow .cs-note{font-size:12px;color:var(--fg-2);line-height:1.5;text-wrap:pretty}
.crow .cs-note code{font-family:var(--fm);font-size:11px;color:var(--fg-3);background:var(--bg-3);padding:1px 5px;border-radius:4px}
@media(max-width:760px){.crow{grid-template-columns:26px 1fr;gap:10px}.crow .cs-note{grid-column:2/3}.crow .st{grid-column:2/3;justify-self:start}.crow.head{display:none}}

/* ── Architecture tree ────────────────────────────────────── */
.archgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:16px}
@media(max-width:900px){.archgrid{grid-template-columns:1fr}}
.archcol{background:var(--bg-2);border:1px solid var(--line);border-radius:14px;padding:18px 20px}
.archcol h4{font-family:var(--fm);font-size:11px;color:var(--fg-2);letter-spacing:.08em;text-transform:uppercase;margin-bottom:4px;font-weight:600;display:flex;align-items:center;gap:9px}
.archcol .path{font-family:var(--fm);font-size:9.5px;color:var(--fg-4);margin-bottom:14px;letter-spacing:.02em}
.arow{display:flex;align-items:baseline;gap:10px;padding:7px 0;border-top:1px solid var(--line)}
.arow:first-of-type{border-top:none}
.arow .fname{font-family:var(--fm);font-size:11.5px;color:var(--fg);flex:none;min-width:0}
.arow .fdesc{font-size:11.5px;color:var(--fg-3);line-height:1.4;margin-left:auto;text-align:right;text-wrap:pretty}
.arow .rtag{font-family:var(--fm);font-size:8.5px;letter-spacing:.06em;text-transform:uppercase;padding:2px 6px;border-radius:4px;flex:none}
.arow .rtag.reuse{background:rgba(5,148,79,.13);color:var(--positive)}
.arow .rtag.adapt{background:rgba(187,122,0,.14);color:var(--warning)}
.arow .rtag.new{background:rgba(39,110,241,.14);color:var(--info)}

/* legend */
.legend{display:flex;flex-wrap:wrap;gap:16px;margin-top:16px;padding:14px 18px;background:var(--bg-2);border:1px solid var(--line);border-radius:11px}
.legend .li{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--fg-2)}
.legend .li .st{pointer-events:none}

/* ── Top bar (mobile hub nav) ─────────────────────────────── */
.hubtop{display:none}
@media(max-width:940px){
  .hubtop{display:flex;align-items:center;gap:10px;position:sticky;top:0;z-index:60;background:var(--bg-2);border-bottom:1px solid var(--line);padding:12px 18px}
  .hubtop .mk{width:24px;height:24px}
  .hubtop .wm{font-size:15px}
  .hubtop .tt{font-family:var(--fm);font-size:9px;color:var(--fg-4);letter-spacing:.1em;text-transform:uppercase;margin-left:auto}
}