/* ── LLM Lab — design tokens ─────────────────────────────────────────────── */
:root {
  --bg: #0a0c14; --bg-card: #12141f; --bg-card-2: #171a29;
  --border: #2b3046; --border-soft: #202538;
  --text: #e6e9f2; --muted: #8a91a8;
  --accent: #ffb454; --accent-soft: rgba(255, 180, 84, .12);
  /* engine hues; unknown engines fall back to amber (var(--accent)); add a rule when one lands */
  --e-vllm: #ffb454; --e-exl: #4ade80; --e-lmc: #38bdf8;
  --hue: var(--accent);
  --pos: #4ade80; --neg: #f87171;
  --grad: linear-gradient(90deg, #ffb454, #4ade80 55%, #38bdf8);
  --m1: #ffb454; --m2: #4ade80; --m3: #38bdf8bdf8;
  --sans: -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Code", Menlo, monospace;
  --shadow: none;
  --card-hover: 0 0 0 1px color-mix(in srgb, var(--hue) 45%, transparent),
                0 8px 32px -12px color-mix(in srgb, var(--hue) 35%, transparent);
  --bloom: drop-shadow(0 0 18px rgba(255, 180, 84, .28));
}
[data-eng="exl3xpu"] { --hue: var(--e-exl); }
[data-eng="vLLM XPU"] { --hue: var(--e-vllm); }
[data-eng^="llama.cpp"] { --hue: var(--e-lmc); }
html[data-theme="light"] {
  --bg: #f6f8fc; --bg-card: #ffffff; --bg-card-2: #eef1f9;
  --border: #d9deea; --border-soft: #e6eaf3;
  --text: #171a26; --muted: #5c6478;
  --accent: #b45309; --accent-soft: rgba(180, 83, 9, .09);
  --e-vllm: #b45309; --e-exl: #15803d; --e-lmc: #0369a1;
  --pos: #16a34a; --neg: #dc2626;
  --grad: linear-gradient(90deg, #f59e0b, #10b981 55%, #0ea5e9);
  --m1: #f59e0b; --m2: #10b981; --m3: #0ea5e9;
  --shadow: 0 1px 2px rgba(23, 26, 38, .05), 0 10px 28px -16px rgba(23, 26, 38, .22);
  --card-hover: 0 0 0 1px color-mix(in srgb, var(--hue) 40%, transparent),
                0 10px 24px -12px rgba(23, 26, 38, .25);
  --bloom: none;
}

/* ── base ────────────────────────────────────────────────────────────────── */
* { box-sizing: border-box; scrollbar-color: var(--border) transparent; }
*::-webkit-scrollbar { width: 10px; height: 10px; }
*::-webkit-scrollbar-thumb { background: var(--border); border-radius: 5px; }
*::-webkit-scrollbar-track { background: transparent; }
body { margin: 0; background: var(--bg); color: var(--text);
  font: 15px/1.6 var(--sans); -webkit-font-smoothing: antialiased; }
/* ambient background: two soft orbs (drift in dark, static tint in light) */
body::before, body::after { content: ""; position: fixed; z-index: -1;
  pointer-events: none; border-radius: 50%; filter: blur(90px); }
body::before { width: 640px; height: 480px; top: -180px; right: -120px;
  background: radial-gradient(closest-side, rgba(56, 189, 248, .16), transparent);
  animation: drift 22s ease-in-out infinite alternate; }
body::after { width: 720px; height: 520px; top: 30%; left: -260px;
  background: radial-gradient(closest-side, rgba(255, 180, 84, .10), transparent);
  animation: drift 26s ease-in-out infinite alternate-reverse; }
html[data-theme="light"] body::before { background:
  radial-gradient(closest-side, rgba(14, 165, 233, .10), transparent); animation: none; }
html[data-theme="light"] body::after { background:
  radial-gradient(closest-side, rgba(245, 158, 11, .08), transparent); animation: none; }
@keyframes drift { from { transform: translate(0, 0) scale(1); }
  to { transform: translate(-60px, 50px) scale(1.12); } }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.num, .tag, .mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.grad { background: var(--grad); -webkit-background-clip: text;
  background-clip: text; color: transparent; }

/* ── nav ─────────────────────────────────────────────────────────────────── */
nav { position: sticky; top: 0; z-index: 10; border-bottom: 1px solid var(--border-soft);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }
.nav-inner { display: flex; align-items: center; gap: 24px; height: 58px; }
.wordmark { display: inline-flex; align-items: center; gap: 8px;
  font: 800 16px/1 var(--sans); letter-spacing: -.01em; color: var(--text); }
.wordmark:hover { text-decoration: none; }
.wordmark svg { filter: drop-shadow(0 0 5px color-mix(in srgb, var(--m3) 40%, transparent)); }
html[data-theme="light"] .wordmark svg { filter: none; }
.nav-links { display: flex; gap: 22px; margin-left: auto; }
.nav-links a { color: var(--muted); font-size: 14px; font-weight: 600; padding: 6px 0; }
.nav-links a:hover { color: var(--text); text-decoration: none; }
.nav-links a.on { color: var(--text); }
#theme-toggle { background: none; border: 1px solid var(--border); border-radius: 8px;
  color: var(--muted); font: 12.5px var(--mono); padding: 5px 11px; cursor: pointer;
  transition: border-color .15s ease-out, color .15s ease-out; }
#theme-toggle:hover { border-color: var(--accent); color: var(--text); }

/* ── hero ────────────────────────────────────────────────────────────────── */
.hero { padding: 72px 0 8px; }
.eyebrow { font: 12.5px var(--mono); letter-spacing: 2px; color: var(--muted); margin: 0 0 16px; }
h1 { font-size: 42px; line-height: 1.15; letter-spacing: -.025em; font-weight: 800;
  margin: 0 0 16px; max-width: 24ch; }
main > .wrap > h1, .page-post h1 { max-width: none; font-size: 30px; }
.sub { color: var(--muted); max-width: 60ch; margin: 0 0 36px; }
.stats { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 8px; }
.stat { border: 1px solid var(--border); border-radius: 10px; padding: 18px 22px;
  background: linear-gradient(180deg, var(--bg-card-2), var(--bg-card));
  min-width: 150px; box-shadow: var(--shadow); }
.stat .v { font: 700 44px/1.05 var(--mono); font-variant-numeric: tabular-nums; }
.stat .v small { font-size: 16px; color: var(--muted); font-weight: 500; }
.stat .l { font: 12px var(--mono); color: var(--muted); letter-spacing: 1.5px; margin-top: 8px; }
.stat.hot .v { color: var(--accent); filter: var(--bloom); }
.stat.hot .l { color: var(--text); }
.page-post .stat.hot { min-width: 210px; }
.page-post .stat.hot .v { font-size: 72px; }

/* ── section label ───────────────────────────────────────────────────────── */
.label { font: 12.5px var(--mono); letter-spacing: 2px; color: var(--muted);
  margin: 56px 0 16px; }

/* ── about sections ─────────────────────────────────────────────────────── */
.panel { position: relative; border: 1px solid var(--border); border-radius: 12px;
  background: var(--bg-card); padding: 24px 28px 26px; box-shadow: var(--shadow);
  margin-bottom: 20px; overflow: hidden; }
.panel::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--grad); opacity: .65; }
.panel .label { margin: 0 0 16px; }
.panel ul { margin: 0; padding-left: 20px; }
.panel li { margin-bottom: 8px; color: var(--muted); line-height: 1.55; }
.panel li::marker { color: var(--accent); }
.specs { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 14px; }
.spec { border: 1px solid var(--border); border-radius: 10px; background: var(--bg);
  padding: 14px 16px; }
.spec .k { font: 11.5px var(--mono); letter-spacing: 2px; color: var(--muted); margin-bottom: 7px; }
.spec .v { font-weight: 700; font-size: 14.5px; letter-spacing: -.01em; }
.spec .v a { color: var(--accent); }
.spec .n { color: var(--muted); font-size: 12.5px; margin-top: 5px; line-height: 1.5; }
.spec .n a { color: var(--accent); }

/* ── chart (home) ────────────────────────────────────────────────────────── */
.chart { border: 1px solid var(--border); border-radius: 12px; background: var(--bg-card);
  padding: 22px 26px; box-shadow: var(--shadow); }
.chart .row { margin-bottom: 16px; }
.chart .row:last-child { margin-bottom: 0; }
.chart .row-head { display: flex; justify-content: space-between; align-items: baseline;
  gap: 14px; margin-bottom: 6px; }
.chart .label-row { font: 12.5px var(--mono); color: var(--muted);
  min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chart .bar-wrap { height: 18px; background: var(--border-soft);
  border-radius: 4px; overflow: hidden; }
.chart .bar { height: 100%; border-radius: 4px; background: var(--hue);
  opacity: .9; transition: opacity .15s ease-out; }
.chart .row:hover .bar { opacity: 1; }
.chart .bar.best { background: var(--grad);
  box-shadow: 0 0 14px color-mix(in srgb, var(--hue) 45%, transparent); }
.chart .val { font: 600 13px var(--mono); color: var(--text);
  font-variant-numeric: tabular-nums; }

/* ── run cards ───────────────────────────────────────────────────────────── */
.runs { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.run { border: 1px solid var(--border); border-radius: 12px; background: var(--bg-card);
  padding: 18px; display: block; color: var(--text); box-shadow: var(--shadow);
  transition: border-color .15s ease-out, transform .15s ease-out, box-shadow .15s ease-out; }
.run:hover { border-color: color-mix(in srgb, var(--hue) 50%, var(--border));
  transform: translateY(-2px); box-shadow: var(--card-hover); text-decoration: none; }
.run .title { font-weight: 700; font-size: 15px; margin-bottom: 10px; letter-spacing: -.01em; }
.run[data-eng] .title::before { content: ""; display: inline-block; width: 9px; height: 9px;
  border-radius: 50%; background: var(--hue); margin-right: 8px;
  box-shadow: 0 0 8px color-mix(in srgb, var(--hue) 60%, transparent); }
.tags { margin-bottom: 10px; }
.tag { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 11.5px;
  background: var(--accent-soft); color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent); margin-right: 4px;
  cursor: default; }
a.tag { cursor: pointer; }
.tag.card-chip { background: transparent; color: var(--muted);
  border-color: var(--border); cursor: default; }
.tag.on { background: var(--accent); color: #10121a; border-color: var(--accent); }
.trends { display: flex; flex-wrap: wrap; gap: 10px 32px; margin: 8px 0 18px;
  padding: 14px 20px; border: 1px solid var(--border); border-radius: 12px;
  background: var(--bg-card); box-shadow: var(--shadow); }
.trend { display: flex; align-items: center; gap: 10px; font: 600 13px var(--mono); }
.trend svg polyline { stroke: var(--hue, var(--accent)); }
.trend .last { color: var(--hue, var(--accent)); }
.eng-filter { margin: 0 0 12px; }
.tag.area-chip { color: var(--accent); border-color: color-mix(in oklab, var(--accent) 45%, transparent); }
.related { margin: 12px 0 0; }
.related li { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline;
  gap: 4px 14px; padding: 10px 0; border-bottom: 1px solid var(--border-soft); }
.related li a { color: var(--text); text-decoration: none; font-weight: 600; }
.related li a:hover { color: var(--accent); }
.related .rmeta { font: 12px var(--mono); color: var(--muted); white-space: nowrap; }
.eng-filter .tag small { opacity: .65; font-weight: 500; }
.eng-filter .hint { margin-left: 8px; }
.run .big { font: 700 40px/1 var(--mono); font-variant-numeric: tabular-nums; margin: 6px 0 4px; }
.run .big small { font-size: 14px; color: var(--muted); font-weight: 500; }
.run .sec { color: var(--muted); font-size: 13px; }
.run .foot { display: flex; justify-content: space-between; align-items: center;
  margin-top: 14px; font: 12.5px var(--mono); color: var(--muted); }
.delta { font: 12.5px var(--mono); }
.delta.up { color: var(--pos); } .delta.down { color: var(--neg); }
.delta.base { color: var(--muted); }

/* ── compare table ───────────────────────────────────────────────────────── */
.tbl-tools { display: flex; gap: 12px; align-items: center; margin-bottom: 16px; }
.tbl-tools .hint { color: var(--muted); font: 12.5px var(--mono); }
.tbl-wrap { border: 1px solid var(--border); border-radius: 12px; overflow: auto;
  background: var(--bg-card); box-shadow: var(--shadow); }
table { border-collapse: collapse; width: 100%; }
#cmp { min-width: 860px; }
#cmp td .eng { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; }
#cmp td .eng::before { content: ""; width: 8px; height: 8px; border-radius: 50%;
  background: var(--hue); box-shadow: 0 0 8px color-mix(in srgb, var(--hue) 60%, transparent); flex: none; }
th, td { padding: 11px 14px; text-align: left; border-bottom: 1px solid var(--border-soft);
  font-size: 13.5px; white-space: nowrap; }
td { white-space: normal; }
th { font: 600 11.5px var(--mono); letter-spacing: 1.2px; color: var(--muted);
  text-transform: uppercase; position: sticky; top: 0; z-index: 2;
  background: var(--bg-card); backdrop-filter: blur(8px); }
th.sortable { cursor: pointer; user-select: none; }
th.sortable:hover { color: var(--text); }
th[aria-sort="ascending"]::after { content: " \25b2"; color: var(--hue, var(--accent)); }
th[aria-sort="descending"]::after { content: " \25bc"; color: var(--hue, var(--accent)); }
tbody tr { transition: background .12s ease-out; }
tbody tr:hover { background: var(--bg-card-2); }
tr[data-eng] td:first-child { box-shadow: inset 3px 0 0 var(--hue); }
td.num, th.num { text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums;
  white-space: nowrap; }
td.decode { position: relative; }
td.decode .cellbar { display: block; height: 3px; border-radius: 2px;
  background: var(--hue); margin-top: 5px;
  box-shadow: 0 0 6px color-mix(in srgb, var(--hue) 50%, transparent); }
tr.best-row { background: var(--accent-soft); }
tr.best-row td { border-top: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 30%, transparent); }
tr.best-row td.num { font-weight: 700; color: var(--accent); }
.findings { margin-top: 24px; display: grid; gap: 12px; }
.finding { border: 1px solid var(--border); border-left: 3px solid var(--hue, var(--accent));
  border-radius: 10px; background: var(--bg-card); padding: 14px 18px; box-shadow: var(--shadow); }
.finding h4 { margin: 0 0 4px; font: 600 13px var(--mono); }
.finding p { margin: 0; color: var(--muted); font-size: 13.5px; }
.verdict { font: 12.5px var(--mono); font-weight: 700; }
.verdict.keep { color: var(--pos); } .verdict.revert { color: var(--neg); }

/* ── article (run posts) ─────────────────────────────────────────────────── */
.article { overflow-wrap: anywhere; } /* long paths/URLs must not stretch the mobile viewport */
.based-on { margin: -16px 0 28px; color: var(--muted); font: 13px var(--mono); }
.based-on a { display: inline-block; max-width: min(64ch, 100%); overflow: hidden;
  text-overflow: ellipsis; white-space: nowrap; vertical-align: bottom;
  color: var(--hue, var(--accent)); border: 1px solid var(--border);
  background: var(--bg-card); border-radius: 999px; padding: 3px 12px;
  margin-left: 6px; }
.based-on a:hover { border-color: var(--hue, var(--accent)); }
.article h2 { font-size: 21px; letter-spacing: -.015em; margin: 44px 0 12px; }
.article h3 { font-size: 16.5px; margin: 28px 0 10px; }
.article p { max-width: 72ch; }
.article ul { max-width: 72ch; padding-left: 22px; }
.article li { margin-bottom: 6px; }
.article blockquote { border-left: 3px solid var(--hue, var(--accent));
  background: var(--bg-card); border-radius: 0 10px 10px 0;
  margin: 20px 0; padding: 12px 18px; color: var(--muted); }
.article blockquote p { margin: 0; }
.article code { font: 13px var(--mono); background: var(--bg-card-2);
  border: 1px solid var(--border-soft); border-radius: 5px; padding: 1px 6px; }
.article pre { position: relative; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 10px; padding: 14px 16px; overflow-x: auto;
  font: 12.5px/1.7 var(--mono); }
.article pre code { background: none; border: none; padding: 0; }
.copy { position: absolute; top: 8px; right: 8px; font: 10.5px var(--mono); letter-spacing: .4px;
  color: var(--muted); background: var(--bg-card-2); border: 1px solid var(--border-soft);
  border-radius: 6px; padding: 3px 9px; cursor: pointer; opacity: .65;
  transition: opacity .15s ease-out, color .15s ease-out; }
.copy:hover { opacity: 1; color: var(--text); }
.article table { width: 100%; border: 1px solid var(--border); border-radius: 10px;
  overflow: hidden; margin: 18px 0; }
.article table th { position: static; }
.article table td, .article table th { white-space: normal; }

/* ── footer ──────────────────────────────────────────────────────────────── */
footer { border-top: 1px solid var(--border-soft); margin-top: 80px; padding: 28px 0 48px;
  color: var(--muted); font: 12.5px var(--mono); }
.foot-note { margin-top: 10px; font-size: 11.5px; opacity: .7; }

/* ── motion (only when JS + motion allowed; the `js` class is set in <head>) ─ */
html.js .chart .bar { width: 0; transition: width .9s cubic-bezier(.2, .8, .2, 1); }
html.js .chart.in .bar { width: var(--w); }
html.js .trends polyline { stroke-dasharray: 100; stroke-dashoffset: 100;
  transition: stroke-dashoffset 1.2s ease-out .2s; }
html.js .trends.in polyline { stroke-dashoffset: 0; }
html.js td.decode .cellbar { width: 0; transition: width .9s cubic-bezier(.2, .8, .2, 1) .15s; }
html.js .tbl-wrap.in td.decode .cellbar { width: var(--w); }
html.js .reveal { opacity: 0; transform: translateY(14px);
  transition: opacity .5s ease-out, transform .5s ease-out; }
html.js .reveal.in { opacity: 1; transform: none; }

/* ── print ───────────────────────────────────────────────────────────────── */
@media print {
  :root, html[data-theme="light"] {
    --bg: #fff; --bg-card: #fff; --bg-card-2: #f4f4f5;
    --border: #bbb; --border-soft: #ddd; --text: #111; --muted: #555;
    --accent: #b45309; --pos: #16a34a; --neg: #dc2626;
    --e-vllm: #b45309; --e-exl: #15803d; --e-lmc: #0369a1;
    --shadow: none; --card-hover: none; --bloom: none;
  }
  nav, footer, #theme-toggle, .copy { display: none !important; }
  body { background: #fff; }
  a { color: inherit; text-decoration: none; }
  .article pre { white-space: pre-wrap; word-break: break-word; }
  html.js .reveal { opacity: 1 !important; transform: none !important; }
  html.js .chart .bar, html.js td.decode .cellbar { width: var(--w) !important; }
  html.js .trends polyline { stroke-dasharray: none; stroke-dashoffset: 0; }
  #cmp { min-width: 0; }
  #cmp th, #cmp td { white-space: normal; }
  .stat { box-shadow: none; }
}

/* ── responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 860px) {
  h1 { font-size: 32px; }
  main > .wrap > h1, .page-post h1 { font-size: 26px; }
}
@media (max-width: 640px) {
  .hero { padding-top: 48px; }
  .stat .v { font-size: 34px; }
  .page-post .stat.hot .v { font-size: 52px; }
  .nav-links { gap: 14px; }
}
@media (max-width: 480px) {
  .nav-inner { flex-wrap: wrap; row-gap: 8px; height: auto; padding-top: 10px;
    padding-bottom: 10px; }
  .nav-links { flex-wrap: wrap; gap: 12px; }
}