/* ░░░░░ ΦBENCH · terminal-bench-style monochrome (flat black, all-mono) ░░░░░ */
:root{
  --bg:#09090b; --bg-2:#09090b;
  --panel:#121214; --panel-2:#0e0e10; --panel-hi:#1a1a1d;
  --border:#2e2e2e; --border-hi:#3f3f46;
  --ink:#e4e4e7; --ink-hi:#fafafa; --dim:#9f9fa9; --dim-2:#6b6b74;
  /* UI is grayscale; these "accent" tokens all resolve to light gray/white so the
     whole chrome stays monochrome. Per-model chart colors come from JSON, not these. */
  --cyan:#fafafa; --magenta:#d4d4d8; --lime:#d4d4d8; --amber:#a1a1aa;
  --violet:#d4d4d8; --coral:#fafafa; --blue:#d4d4d8;
  --accent:#fafafa;
  --good:#9f9fa9; --warn:#d4d4d8; --bad:#ff5d6c;
  --font:ui-monospace,"JetBrains Mono","SFMono-Regular","SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
  --mono:ui-monospace,"JetBrains Mono","SFMono-Regular","SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
  --glow:none;
  --r:10px; --r-sm:7px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{
  margin:0; background:var(--bg); color:var(--ink); font-family:var(--font);
  font-size:14px; line-height:1.5; -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
h1,h2,h3{margin:0;font-weight:600;letter-spacing:.02em}
code{font-family:var(--mono);color:var(--cyan);background:rgba(255,255,255,.06);padding:.05em .35em;border-radius:4px;font-size:.92em}
b{color:var(--ink-hi);font-weight:600}
::selection{background:rgba(255,255,255,.28);color:#fff}

/* backdrop: flat pure black (terminal-bench) */
.grid-bg{position:fixed;inset:0;z-index:-2;pointer-events:none;background:var(--bg)}
.scanlines{display:none}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* ░░ NAV ░░ */
.nav{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:24px;
  padding:12px 22px;background:rgba(6,9,13,.82);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border)}
.brand{display:flex;align-items:baseline;gap:8px}
.brand-glyph{color:var(--cyan);font-size:22px;font-weight:700;text-shadow:var(--glow);animation:flick 6s infinite}
.brand-name{font-weight:700;letter-spacing:.22em;color:var(--ink-hi)}
.brand-sub{color:var(--ink-hi);font-size:12px;letter-spacing:.08em;font-weight:800}
@keyframes flick{0%,97%,100%{opacity:1}98%{opacity:.55}99%{opacity:.85}}
.nav-links{display:flex;gap:4px;margin-left:auto;flex-wrap:wrap}
.nav-links a{padding:6px 11px;border-radius:var(--r-sm);color:var(--dim);font-size:12.5px;
  border:1px solid transparent;transition:.16s}
.nav-links a:hover{color:var(--ink-hi);background:var(--panel);border-color:var(--border)}
.nav-links a.is-active{color:var(--cyan);border-color:var(--border-hi);background:var(--panel-hi);box-shadow:inset 0 0 0 1px rgba(255,255,255,.10)}
.nav-status{display:flex;align-items:center;gap:7px;color:var(--dim);font-size:11px;letter-spacing:.12em}
.nav-status .dot{width:7px;height:7px;border-radius:50%;background:var(--good);box-shadow:0 0 8px var(--good);animation:pulse 2.4s infinite}
@keyframes pulse{50%{opacity:.35}}
@media(max-width:900px){.nav-links{display:none}.nav-status{margin-left:auto}}

/* ░░ SECTIONS ░░ */
main{max-width:1240px;margin:0 auto;padding:0 22px 80px}
.section{padding:60px 0 20px;scroll-margin-top:72px}
.section-head{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:10px}
.section-head h2{font-size:19px;color:var(--ink-hi);display:flex;align-items:center;gap:12px}
.sec-idx{font-size:12px;color:var(--cyan);border:1px solid var(--border-hi);border-radius:6px;padding:2px 7px;text-shadow:var(--glow)}
.section-note{color:var(--dim);font-size:12.5px;margin:0 0 16px;max-width:900px}
.section-note .note-dim{color:var(--dim-2)}
.panel{background:linear-gradient(180deg,var(--panel),var(--panel-2));border:1px solid var(--border);
  border-radius:var(--r);position:relative;overflow:hidden}
.panel::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.28),transparent)}
.panel-cap{font-size:10.5px;letter-spacing:.18em;color:var(--dim);padding:12px 16px 0;text-transform:uppercase}

/* segmented toggle */
.seg{display:inline-flex;border:1px solid var(--border-hi);border-radius:var(--r-sm);overflow:hidden;background:var(--panel)}
.seg-btn{font-family:var(--mono);font-size:12px;color:var(--dim);background:transparent;border:0;
  padding:7px 13px;cursor:pointer;transition:.15s;border-right:1px solid var(--border)}
.seg-btn:last-child{border-right:0}
.seg-btn:hover{color:var(--ink-hi)}
.seg-btn.is-on{color:#031014;background:var(--cyan);text-shadow:none;font-weight:600}

/* ░░ HERO ░░ */
.hero{padding-top:38px}
.hero-head{display:grid;grid-template-columns:1.5fr 1fr;gap:26px;align-items:end;margin-bottom:20px}
.kicker{color:var(--cyan);font-size:12px;letter-spacing:.24em;margin-bottom:12px;text-shadow:var(--glow)}
.hero-title{font-size:34px;line-height:1.15;color:var(--ink-hi);letter-spacing:0}
.hero-title .accent{color:var(--cyan);text-shadow:var(--glow)}
.hero-blurb{color:var(--dim);font-size:13px;margin-top:14px;max-width:620px}
.stat-tiles{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.stat-tiles li{background:var(--panel);border:1px solid var(--border);border-radius:var(--r-sm);padding:12px 14px}
.stat-tiles .n{font-size:24px;color:var(--ink-hi);font-weight:700}
.stat-tiles .n .u{font-size:13px;color:var(--cyan);font-weight:600}
.stat-tiles .l{font-size:10.5px;color:var(--dim);letter-spacing:.12em;text-transform:uppercase;margin-top:2px}

.theater{display:grid;grid-template-columns:1fr 290px;gap:0}
.theater-main{padding:16px 18px 18px;border-right:1px solid var(--border)}
.theater-cap{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}
.tag{font-size:11px;color:var(--cyan);border:1px solid var(--border-hi);border-radius:5px;padding:2px 8px;letter-spacing:.08em}
.metric-flag{font-size:11px;color:var(--dim)}
.theater-controls{display:flex;align-items:center;gap:14px;margin-top:12px}
.btn{font-family:var(--mono);cursor:pointer;border-radius:var(--r-sm);border:1px solid var(--border-hi);
  background:var(--panel-hi);color:var(--ink);transition:.15s}
.btn:hover{border-color:var(--cyan);color:var(--cyan)}
.btn-play{width:42px;height:34px;font-size:14px;color:var(--cyan);box-shadow:var(--glow)}
.btn-play.is-playing{color:var(--magenta);box-shadow:none;border-color:var(--magenta)}
.btn-ghost{width:34px;height:34px;color:var(--dim)}
.scrub{flex:1;-webkit-appearance:none;appearance:none;height:4px;border-radius:3px;
  background:linear-gradient(90deg,var(--cyan),var(--border));outline:none}
.scrub::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;border-radius:50%;
  background:var(--cyan);box-shadow:var(--glow);cursor:pointer;border:2px solid #041016}
.scrub::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:var(--cyan);border:2px solid #041016;cursor:pointer}
.round-read{font-size:12px;color:var(--dim);letter-spacing:.08em;white-space:nowrap}
.round-read b{color:var(--cyan);font-size:15px}
.round-read .dim{color:var(--dim-2)}

.theater-rank{padding:16px 14px;display:flex;flex-direction:column}
.rank-head{font-size:10.5px;letter-spacing:.16em;color:var(--dim);margin-bottom:10px;text-transform:uppercase}
.rank-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:7px;flex:1}
.rank-row{display:grid;grid-template-columns:16px 1fr auto;align-items:center;gap:8px;font-size:12px;
  transition:transform .5s cubic-bezier(.4,1.4,.4,1)}
.rank-row .pos{color:var(--dim-2);font-size:11px}
.rank-row .nm{display:flex;align-items:center;gap:6px;color:var(--ink)}
.rank-row .sw{width:9px;height:9px;border-radius:2px;flex:none;box-shadow:0 0 6px currentColor}
.rank-row .vl{color:var(--ink-hi);font-variant-numeric:tabular-nums}
.rank-row.lead .nm{color:var(--ink-hi);font-weight:600}
.rank-bar{grid-column:1/-1;height:3px;border-radius:2px;background:var(--border);overflow:hidden}
.rank-bar i{display:block;height:100%;border-radius:2px;transition:width .5s ease}
.rank-foot{font-size:10.5px;color:var(--dim-2);margin-top:12px;line-height:1.5}
/* iteration analysis block */
.analysis{margin-top:16px;padding:16px 20px 18px;--pick:#22d3ee}
.analysis-title{font-size:18px;font-weight:700;color:var(--ink-hi);letter-spacing:.02em;margin-bottom:6px}
.analysis-head{font-size:14px;font-weight:700;color:var(--pick);letter-spacing:.02em;margin-bottom:12px}
.analysis-p{color:var(--ink);font-size:13px;line-height:1.85;margin:0 0 12px;max-width:1000px}
.analysis-p:last-child{margin-bottom:0}
.analysis-tag{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.06em;
  padding:1px 8px;margin-right:8px;border-radius:4px;border:1px solid var(--pick);color:var(--pick);vertical-align:1px}
.analysis-tag.good{border-color:#3fd07a;color:#3fd07a}
.analysis-tag.bad{border-color:var(--bad);color:var(--bad)}

/* ░░ CHARTS ░░ */
.chart{width:100%}
.chart svg{width:100%;height:auto;display:block;overflow:visible}
.chart-tall{min-height:360px}
.chart-mid{min-height:320px}
.gridline{stroke:var(--border);stroke-width:1}
.axis-txt{fill:var(--dim);font-size:11px;font-family:var(--mono)}
.axis-lbl{fill:var(--dim-2);font-size:10px;letter-spacing:.1em}
.series-line{fill:none;stroke-width:2;stroke-linejoin:round;stroke-linecap:round;
  filter:drop-shadow(0 0 5px currentColor)}
.series-dot{stroke:#05070a;stroke-width:1.5}
.series-dot.imp{r:4.5}
.dashed{stroke-dasharray:5 5;opacity:.8}

/* ░░ LEADERBOARD ░░ */
.table-wrap{overflow-x:auto}
table.lb{width:100%;border-collapse:collapse;font-size:13px}
.lb thead th{position:sticky;top:0;text-align:right;color:var(--dim);font-weight:500;font-size:11px;
  letter-spacing:.1em;text-transform:uppercase;padding:14px 14px;border-bottom:1px solid var(--border-hi);
  cursor:pointer;white-space:nowrap;user-select:none;background:var(--panel)}
.lb thead th.l{text-align:left}
.lb thead th:hover{color:var(--cyan)}
.lb thead th .ar{color:var(--cyan);font-size:10px}
.lb tbody td{padding:11px 14px;text-align:right;border-bottom:1px solid var(--border);
  font-variant-numeric:tabular-nums}
.lb tbody tr{transition:.14s;cursor:pointer}
.lb tbody tr:hover{background:var(--panel-hi)}
.lb tbody tr.exp{background:var(--panel-hi)}
.lb .c-rank{color:var(--dim);text-align:center;width:44px}
.lb .c-rank.top{color:var(--cyan);text-shadow:var(--glow);font-weight:700}
.lb .c-model{text-align:left}
.lb .mdl{display:flex;align-items:center;gap:9px}
.lb .mdl .sw{width:11px;height:11px;border-radius:3px;box-shadow:0 0 7px currentColor;flex:none}
.lb .mdl .nm{color:var(--ink-hi);font-weight:600}
.lb .cell{display:inline-flex;flex-direction:column;align-items:flex-end;gap:3px;min-width:76px}
.lb .cell .v{color:var(--ink)}
.lb .cell .bar{width:100%;height:3px;background:var(--border);border-radius:2px;overflow:hidden}
.lb .cell .bar i{display:block;height:100%;border-radius:2px}
.lb .c-total .v{color:var(--ink-hi);font-weight:700;font-size:14px}
.lb .cnt{color:var(--dim-2);font-size:10px}
.lb-expand td{background:var(--bg-2);padding:0}
.lb-topics{padding:14px 16px;display:flex;gap:16px;flex-wrap:wrap;align-items:flex-end}
.lb-topics .tp{display:flex;flex-direction:column;align-items:center;gap:5px;min-width:52px}
.lb-topics .tp .b{width:26px;background:var(--border);border-radius:3px 3px 0 0;position:relative;height:60px;display:flex;align-items:flex-end}
.lb-topics .tp .b i{width:100%;border-radius:3px 3px 0 0}
.lb-topics .tp .k{font-size:10px;color:var(--dim)}
.lb-topics .tp .val{font-size:9.5px;color:var(--dim-2)}

/* ░░ TOPICS ░░ */
.topics-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:16px}
.topics-grid .chart{padding:6px 16px 16px}
.chip-legend{display:flex;flex-wrap:wrap;gap:7px;padding:0 16px 16px}
.chip{display:inline-flex;align-items:center;gap:6px;font-size:11.5px;color:var(--dim);
  border:1px solid var(--border);border-radius:20px;padding:4px 11px;cursor:pointer;transition:.14s;user-select:none}
.chip .sw{width:9px;height:9px;border-radius:50%;box-shadow:0 0 6px currentColor}
.chip:hover{border-color:var(--border-hi);color:var(--ink)}
.chip.off{opacity:.32;filter:grayscale(1)}
.chip.on{color:var(--ink-hi);border-color:currentColor}
.heat-cell{stroke:var(--bg);stroke-width:2;transition:.15s}
.heat-cell:hover{stroke:var(--cyan);stroke-width:2}
.heat-txt{font-size:10.5px;font-variant-numeric:tabular-nums;pointer-events:none}
.topic-key{display:grid;grid-template-columns:repeat(3,1fr);gap:6px 22px;margin-top:16px;
  padding:14px 16px;background:var(--panel);border:1px solid var(--border);border-radius:var(--r)}
.topic-key .row{font-size:11.5px;color:var(--dim);display:flex;gap:8px}
.topic-key .k{color:var(--cyan);font-weight:600;min-width:16px}
.topic-key .n{color:var(--ink)}
.topic-key .c{color:var(--dim-2);margin-left:auto}
@media(max-width:860px){.topics-grid{grid-template-columns:1fr}.topic-key{grid-template-columns:1fr}.hero-head{grid-template-columns:1fr}.theater{grid-template-columns:1fr}.theater-main{border-right:0;border-bottom:1px solid var(--border)}}

/* ░░ EXPLORER ░░ */
.explorer{display:grid;grid-template-columns:250px 1fr;gap:16px;--pick:#22d3ee}
.task-picker{display:flex;flex-direction:column;gap:14px;max-height:560px;overflow-y:auto;padding-right:4px}
.picker-group .picker-head{font-size:10.5px;letter-spacing:.14em;color:var(--ink-hi);font-weight:700;text-transform:uppercase;margin-bottom:7px;position:sticky;top:0;background:var(--bg);padding:2px 0}
.task-picker ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:4px}
.task-picker li{font-size:11.5px;color:var(--dim);padding:7px 10px;border:1px solid var(--border-hi);
  border-radius:var(--r-sm);cursor:pointer;transition:.14s;display:flex;justify-content:space-between;gap:8px;align-items:center}
.task-picker li:hover{color:var(--ink-hi);background:var(--panel);border-color:var(--ink-hi)}
.task-picker li.on{color:var(--pick);background:var(--panel-hi);border-color:var(--pick);box-shadow:inset 0 0 0 1px var(--pick)}
.task-picker li .mt{font-size:9.5px;color:var(--dim-2);border:1px solid var(--border);border-radius:4px;padding:1px 5px;flex:none}
.task-picker li.impl{opacity:.6}
.explorer-main{padding:16px 18px 18px}
.explorer-cap{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:8px;flex-wrap:wrap}
.ex-name{color:var(--ink-hi);font-size:13px}
.ex-summary-box{margin:16px 0 2px;padding:12px 14px 13px;background:var(--panel-2);
  border:1px solid var(--pick);border-radius:var(--r-sm);box-shadow:0 0 0 1px rgba(34,211,238,.15)}
.ex-summary-head{font-size:10.5px;letter-spacing:.16em;color:var(--pick);font-weight:700;text-transform:uppercase;margin-bottom:7px}
.ex-summary{margin:0;color:var(--ink);font-size:12px;line-height:1.65}
.ex-empty{display:flex;align-items:center;justify-content:center;height:340px;color:var(--dim-2);font-size:13px;flex-direction:column;gap:8px}
@media(max-width:860px){.explorer{grid-template-columns:1fr}.task-picker{flex-direction:row;max-height:none;overflow-x:auto}.picker-group{min-width:220px}}

/* ░░ EFFORT ░░ */
.ef-badges{display:flex;gap:12px;flex-wrap:wrap;padding:0 16px 16px}
.ef-badge{border:1px solid var(--border);border-radius:var(--r-sm);padding:9px 13px;font-size:11.5px;background:var(--panel)}
.ef-badge .m{display:flex;align-items:center;gap:7px;color:var(--ink-hi);font-weight:600}
.ef-badge .m .sw{width:10px;height:10px;border-radius:3px;box-shadow:0 0 6px currentColor}
.ef-badge .d{color:var(--dim);margin-top:4px}
.ef-badge .d b{color:var(--lime)}

/* ░░ ABOUT ░░ */
.about-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:16px}
.about-grid.one-col{grid-template-columns:1fr}
.about-grid .panel{padding:0 0 16px}
.paper-title{color:var(--ink-hi);font-size:15px;padding:6px 16px 0;line-height:1.4}
.paper-authors{color:var(--cyan);font-size:11.5px;padding:6px 16px 0;letter-spacing:.04em}
.paper-abs{color:var(--dim);font-size:12.5px;padding:8px 16px 0}
#about-formats,.reward-box{padding:10px 16px 0;display:flex;flex-direction:column;gap:8px}
.fmt{border:1px solid var(--border);border-radius:var(--r-sm);padding:10px 12px}
.fmt .nm{color:var(--ink-hi);font-size:12.5px;font-weight:600}
.fmt .meta{color:var(--dim);font-size:11px;margin-top:3px;display:flex;gap:14px;flex-wrap:wrap}
.fmt .meta .n{color:var(--cyan)}
.reward-box .rw{border:1px solid var(--border);border-radius:var(--r-sm);padding:9px 12px}
.reward-box .rw .t{color:var(--amber);font-size:11px;letter-spacing:.1em;text-transform:uppercase}
.reward-box .rw .f{color:var(--ink);font-size:11.5px;margin-top:4px;word-break:break-word}
.about-prov{padding:12px 16px 16px}
.about-prov p{margin:8px 0 0}
.foot{margin-top:34px;padding-top:20px;border-top:1px solid var(--border);color:var(--dim);font-size:11.5px;text-align:center;letter-spacing:.06em}
@media(max-width:860px){.about-grid{grid-template-columns:1fr}}

/* tooltip */
.tooltip{position:fixed;z-index:50;pointer-events:none;opacity:0;transform:translateY(4px);
  background:rgba(8,12,18,.96);border:1px solid var(--border-hi);border-radius:var(--r-sm);
  padding:8px 11px;font-size:11.5px;color:var(--ink);box-shadow:0 8px 30px rgba(0,0,0,.6);
  transition:opacity .12s;max-width:280px;line-height:1.5}
.tooltip.show{opacity:1}
.tooltip .tt-h{color:var(--ink-hi);font-weight:600;margin-bottom:3px}
.tooltip .tt-r{display:flex;justify-content:space-between;gap:14px}
.tooltip .tt-r .sw{width:8px;height:8px;border-radius:2px;display:inline-block;margin-right:5px}
.reveal{opacity:0;transform:translateY(14px)}
.reveal.in{opacity:1;transform:none;transition:opacity .6s ease,transform .6s cubic-bezier(.2,.7,.3,1)}

/* ░░░░░ HOME / LANDING ░░░░░ */
.home-main{max-width:1160px;margin:0 auto;padding:0 22px 70px}
.home-section{padding:46px 0 8px}
.home-hero{padding:64px 0 30px;text-align:center;position:relative}
.home-hero .kicker{color:#ff5d5d;font-size:12px;letter-spacing:.28em;margin-bottom:20px;text-shadow:none}
.home-title{font-size:40px;line-height:1.18;color:var(--ink-hi);letter-spacing:0;max-width:960px;margin:0 auto}
.home-title .accent{color:var(--ink-hi);text-shadow:none}
@media(max-width:720px){.home-title{font-size:27px}}

.link-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin:28px 0 6px}
.lbtn{display:inline-flex;align-items:center;gap:9px;padding:10px 18px;border-radius:999px;
  border:1px solid var(--border-hi);background:var(--panel);color:var(--ink);font-size:13px;
  transition:.16s;position:relative}
.lbtn .g{font-size:14px;line-height:1;color:var(--cyan)}
.lbtn:hover{border-color:var(--cyan);color:var(--ink-hi);box-shadow:var(--glow);transform:translateY(-1px)}
.lbtn.soon{opacity:.5;cursor:not-allowed}
.lbtn.soon:hover{transform:none;box-shadow:none;border-color:var(--border-hi);color:var(--ink)}
.lbtn.soon::after{content:"soon";position:absolute;top:-7px;right:-4px;font-size:8px;letter-spacing:.1em;
  color:var(--dim-2);background:var(--bg);border:1px solid var(--border);border-radius:5px;padding:1px 4px}
.link-row.small .lbtn{padding:7px 13px;font-size:12px}

.home-intro{color:var(--ink);font-size:14.5px;line-height:1.7;max-width:760px;margin:26px auto 0}
.insts{list-style:none;display:grid;grid-template-columns:repeat(3,auto);justify-content:center;align-items:center;gap:24px 48px;margin:36px auto 4px;padding:0;max-width:1080px}
.inst{display:inline-flex;align-items:center;gap:15px}
.inst-logo{height:72px;flex:none;background:#fff;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;padding:10px 14px;transition:transform .16s,box-shadow .16s}
.inst-logo img{height:100%;width:auto;max-width:300px;object-fit:contain;display:block}
.inst-name{font-family:"Helvetica Neue",-apple-system,"Segoe UI",Arial,sans-serif;font-weight:700;font-size:16.5px;line-height:1.28;color:#fff;text-shadow:0 2px 6px rgba(0,0,0,.85),0 0 1px rgba(255,255,255,.25);letter-spacing:.005em;text-align:left;max-width:220px}
.inst-name.long{font-size:13.5px}
.inst:hover .inst-logo{transform:translateY(-1px);box-shadow:0 4px 14px rgba(0,0,0,.5)}
@media(max-width:860px){.insts{grid-template-columns:repeat(2,auto);gap:20px 32px}}
@media(max-width:520px){.insts{grid-template-columns:1fr}.inst-logo{height:52px}.inst-name{font-size:12.5px;max-width:170px}}

.home-cta{margin-top:34px;display:flex;flex-direction:column;align-items:center;gap:9px}
.btn-enter{display:inline-flex;align-items:center;gap:10px;padding:14px 26px;border-radius:var(--r-sm);
  background:linear-gradient(90deg,rgba(255,255,255,.06),rgba(255,255,255,.03));border:1px solid var(--cyan);
  color:var(--ink-hi);font-size:15px;font-weight:600;letter-spacing:.02em;box-shadow:var(--glow);transition:.16s}
.btn-enter:hover{transform:translateY(-2px);box-shadow:0 0 22px rgba(255,255,255,.28)}
.cta-sub{color:var(--dim);font-size:11.5px;letter-spacing:.06em}

.home-stats{max-width:none}
@media(min-width:720px){.home-stats{grid-template-columns:repeat(4,1fr)}}

/* task-format cards */
.fmt-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media(max-width:820px){.fmt-grid{grid-template-columns:1fr}}
.fmt-card{background:linear-gradient(180deg,var(--panel),var(--panel-2));border:1px solid var(--border);
  border-radius:var(--r);padding:18px 18px 16px;position:relative;overflow:hidden}
.fmt-card::before{content:"";position:absolute;left:0;top:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.28),transparent)}
.fmt-card .fc-idx{position:absolute;top:14px;right:16px;font-size:11px;color:var(--dim-2);border:1px solid var(--border);border-radius:5px;padding:1px 6px}
.fmt-card .fc-code{color:var(--cyan);font-size:15px;font-weight:700;letter-spacing:.04em;text-shadow:var(--glow)}
.fmt-card .fc-name{color:var(--ink-hi);font-size:13px;margin-top:3px}
.fmt-card .fc-blurb{color:var(--dim);font-size:12px;line-height:1.6;margin-top:11px;min-height:76px}
.fmt-card .fc-meta{display:flex;flex-direction:column;gap:3px;margin-top:12px;padding-top:11px;border-top:1px solid var(--border);color:var(--dim);font-size:11px}
.fmt-card .fc-meta .n{color:var(--cyan)}

/* coverage table */
table.cov{width:100%;border-collapse:collapse;font-size:13px}
.cov thead th{text-align:right;color:var(--dim);font-weight:500;font-size:11px;letter-spacing:.1em;text-transform:uppercase;
  padding:14px 14px;border-bottom:1px solid var(--border-hi);white-space:nowrap;background:var(--panel)}
.cov thead th.l{text-align:left}
.cov tbody td{padding:11px 14px;text-align:right;border-bottom:1px solid var(--border);font-variant-numeric:tabular-nums}
.cov tbody tr:hover{background:var(--panel-hi)}
.cov td.l{text-align:left}
.cov .c-topic{display:flex;align-items:center;gap:11px}
.cov .c-topic .code{width:22px;height:22px;flex:none;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--border-hi);border-radius:6px;color:var(--cyan);font-weight:700;font-size:12px}
.cov .c-topic .tname{color:var(--ink)}
.cov .zero{color:var(--dim-2)}
.cov td.tot .tv{color:var(--ink-hi);font-weight:700}
.cov td.tot{min-width:96px}
.cov td.tot .bar{display:block;height:3px;background:var(--border);border-radius:2px;margin-top:5px;overflow:hidden}
.cov td.tot .bar i{display:block;height:100%;border-radius:2px;background:linear-gradient(90deg,var(--cyan),var(--magenta))}
.cov td.mid{color:var(--lime)}
.cov tfoot td{padding:13px 14px;text-align:right;border-top:2px solid var(--border-hi);color:var(--ink-hi);font-weight:700;font-variant-numeric:tabular-nums}
.cov tfoot td.l{text-align:left;letter-spacing:.1em;text-transform:uppercase;font-size:11px;color:var(--dim)}
.cov tfoot .mid{color:var(--lime)}
.cov-foot{color:var(--dim-2);font-size:11px;margin-top:12px;line-height:1.6}
.home-foot{display:flex;flex-direction:column;align-items:center;gap:14px}
.sub-head{font-size:12px;letter-spacing:.06em;color:var(--dim);text-transform:uppercase;margin:26px 0 12px}

/* home leaderboard — frontierbench-style */
.enter-link{color:var(--dim);font-size:12px;transition:.15s}
.enter-link:hover{color:var(--accent)}
.lb-home{width:100%;border-collapse:collapse;font-size:13.5px}
.lb-home thead th{text-align:right;color:var(--dim);font-weight:500;font-size:11px;letter-spacing:.09em;
  text-transform:uppercase;padding:14px 16px;border-bottom:1px solid var(--border-hi);white-space:nowrap;background:transparent}
.lb-home thead th.l{text-align:left}
.lb-home thead th.c-rank{text-align:center;width:56px}
.lb-home tbody td{padding:13px 16px;text-align:right;border-bottom:1px solid var(--border);font-variant-numeric:tabular-nums;vertical-align:middle}
.lb-home tbody tr{transition:background .14s}
.lb-home tbody tr:hover{background:var(--panel-hi)}
.lb-home tbody tr:last-child td{border-bottom:0}
.lb-home tr.top1{background:rgba(255,255,255,.04)}
.lb-home tr.top1:hover{background:rgba(255,255,255,.07)}
.lb-home td.l{text-align:left}
.lb-home .c-rank{text-align:center;color:var(--dim);font-variant-numeric:tabular-nums}
.lb-home tr.top1 .c-rank{color:var(--accent);font-weight:700}
.lb-home .mdl{display:flex;align-items:center;gap:10px}
.lb-home .mdl .sw{width:9px;height:9px;border-radius:2px;flex:none}
.lb-home .mdl .nm{color:var(--ink-hi);font-weight:600}
.lb-home .mdl .eff{font-size:10px;color:var(--dim);border:1px solid var(--border-hi);border-radius:4px;padding:1px 6px;letter-spacing:.04em;text-transform:uppercase}
.harness{display:inline-flex;align-items:center;font-size:11.5px;color:var(--ink);border:1px solid var(--border);border-radius:999px;padding:3px 11px;white-space:nowrap}
.harness.codex{border-color:var(--border-hi);color:var(--ink-hi)}
.harness.cc{color:var(--dim)}
.lb-home .cell{display:inline-flex;flex-direction:column;align-items:flex-end;gap:5px;min-width:82px}
.lb-home .cell .v{color:var(--ink)}
.lb-home .c-total .cell .v{color:var(--ink-hi);font-weight:700;font-size:14.5px}
.lb-home .cell .bar{width:100%;height:3px;background:var(--border);border-radius:2px;overflow:hidden}
.lb-home .cell .bar i{display:block;height:100%;border-radius:2px;background:var(--dim-2)}
.lb-home .c-total .cell .bar i{background:var(--accent)}
@media(max-width:720px){.lb-home .c-harness{display:none}.lb-home thead th.c-harness{display:none}}