/* Praus AI Benchmarks — matches praus.ai: light grey page, one ink colour,
   proportion lines, rounded cards, paintings with dark liquid glass. */
:root{
  --page:#E9E8E4;--paper:#F3F2EE;--ink:#17181B;--light:#F5F4F2;
  --ln:rgba(23,24,27,.12);--ln2:rgba(23,24,27,.24);--gl:rgba(23,24,27,.09);--gx:rgba(23,24,27,.38);
  --bar:rgba(23,24,27,.16);--hov:rgba(23,24,27,.05);
  --cw:min(1120px,calc(100vw - 112px));--go:44px;
  --e:cubic-bezier(.16,1,.3,1);
  --display:"Inter Tight","Inter",system-ui,sans-serif;--text:"Inter",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px;overflow-x:hidden}
body{margin:0;background:var(--page);color:var(--ink);font:400 16px/1.55 var(--text);-webkit-font-smoothing:antialiased;position:relative}
a{color:inherit}
h1,h2,h3,p,ol,ul{margin:0}
img{display:block}
.wrap{width:var(--cw);margin-inline:auto}
:focus-visible{outline:2px solid var(--ink);outline-offset:3px;border-radius:6px}

/* proportion lines */
.guides{position:absolute;inset:0;pointer-events:none;z-index:0}
.guides::before,.guides::after{content:"";position:absolute;top:0;bottom:0;width:1px;background:var(--gl)}
.guides::before{left:calc((100vw - var(--cw))/2 - var(--go))}
.guides::after{right:calc((100vw - var(--cw))/2 - var(--go))}
.rule{position:relative;height:1px;margin:0;border:0}
.rule::before{content:"";position:absolute;left:calc(50% - 50vw);width:100vw;top:0;height:1px;background:var(--gl)}
.rule::after{content:"";position:absolute;top:-5px;left:calc(50% - var(--cw)/2 - var(--go) - 5px);width:calc(var(--cw) + var(--go)*2 + 11px);height:11px;
  background:linear-gradient(var(--gx),var(--gx)) 0 50%/11px 1px no-repeat,linear-gradient(var(--gx),var(--gx)) 5px 0/1px 11px no-repeat,
  linear-gradient(var(--gx),var(--gx)) 100% 50%/11px 1px no-repeat,linear-gradient(var(--gx),var(--gx)) calc(100% - 5px) 0/1px 11px no-repeat}

/* header */
.top{position:sticky;top:0;z-index:20;background:rgba(233,232,228,.82);-webkit-backdrop-filter:blur(12px) saturate(1.3);backdrop-filter:blur(12px) saturate(1.3);border-bottom:1px solid var(--gl)}
.top__in{height:68px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:9px;text-decoration:none;font:500 19px/1 var(--display);letter-spacing:-.03em}
.brand img{display:block;height:19px;width:auto}
.brand__sub{font:500 15px/1 var(--text);letter-spacing:0;padding-left:12px;margin-left:3px;border-left:1px solid var(--ln2)}
.top__nav{display:flex;gap:6px;margin-left:auto}
.top__nav a{text-decoration:none;font-size:15px;padding:8px 12px;border-radius:999px;transition:background .25s}
.top__nav a:hover{background:var(--hov)}
.btn{display:inline-flex;align-items:center;justify-content:center;height:42px;padding:0 20px;border-radius:999px;font:500 15px/1 var(--text);text-decoration:none;border:0;cursor:pointer;transition:background .25s,box-shadow .25s,transform .4s var(--e)}
.btn--ink{background:var(--ink);color:var(--light)}
.btn--ink:hover{background:#2A2B30;transform:translateY(-1px)}
.btn--line{background:transparent;color:var(--ink);box-shadow:inset 0 0 0 1px var(--ln2)}
.btn--line:hover{background:var(--hov)}
.btn--light{background:var(--light);color:var(--ink)}
.btn--light:hover{background:#fff}
.btn--glass{background:transparent;color:var(--light);box-shadow:inset 0 0 0 1px rgba(245,244,242,.4)}
.btn--glass:hover{background:rgba(245,244,242,.12)}

/* hero */
.hero{padding:88px 0 0}
.hero__head{display:grid;grid-template-columns:1.2fr 1fr;gap:48px;align-items:end;margin-bottom:48px}
.hero__k{font-size:15px;font-weight:500;margin-bottom:16px}
.hero h1{font:500 clamp(42px,5vw,68px)/1 var(--display);letter-spacing:-.045em}
.hero__sum{font-size:17px;line-height:1.6;max-width:44ch}
.stage{position:relative;overflow:hidden;border-radius:28px;padding:clamp(24px,4vw,56px);background:url("./paintings/haverstraw.jpg") center 48%/cover no-repeat;box-shadow:0 0 0 1px var(--ln)}
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-radius:22px;overflow:hidden;
  background:linear-gradient(180deg,rgba(30,30,34,.5),rgba(16,16,19,.68));
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.18),inset 0 1px 0 rgba(255,255,255,.28),0 40px 90px rgba(0,0,0,.3);
  -webkit-backdrop-filter:blur(24px) saturate(1.5);backdrop-filter:blur(24px) saturate(1.5)}
.stats,.stats *{color:var(--light)}
.stat{display:block;text-decoration:none;padding:28px 28px 26px;border-left:1px solid rgba(245,244,242,.12);transition:background .3s}
.stat:first-child{border-left:0}
.stat:hover{background:rgba(245,244,242,.06)}
.stat__k{font-size:14px;font-weight:500}
.stat__v{display:block;font:500 clamp(40px,4.4vw,60px)/1 var(--display);letter-spacing:-.05em;margin-top:18px;font-variant-numeric:tabular-nums}
.stat__d{display:block;font-size:14px;margin-top:10px}
.hero__foot{font-size:14px;margin-top:16px}

/* sections */
.sec{padding:120px 0 0}
.sec__head{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:end;margin-bottom:40px}
.sec__t{font:500 clamp(34px,3.8vw,52px)/1.02 var(--display);letter-spacing:-.045em}
.sec__c{font-size:16.5px;line-height:1.6;max-width:46ch}

/* strengths */
.strong{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.sc{display:block;text-decoration:none;padding:28px;border-radius:24px;background:var(--paper);box-shadow:inset 0 0 0 1px var(--ln);transition:box-shadow .35s,transform .5s var(--e)}
.sc:hover{box-shadow:inset 0 0 0 1px var(--ln2),0 18px 40px rgba(23,24,27,.07);transform:translateY(-3px)}
.sc__top{display:flex;justify-content:space-between;align-items:baseline;gap:16px}
.sc__n{font:500 20px/1.2 var(--display);letter-spacing:-.02em}
.sc__s{font:500 40px/1 var(--display);letter-spacing:-.045em;font-variant-numeric:tabular-nums}
.sc__w{font-size:15px;line-height:1.55;margin-top:18px;padding-top:18px;border-top:1px solid var(--ln)}

/* filters */
.filters{display:flex;flex-wrap:wrap;gap:22px;margin:0 0 24px}
.filters button{appearance:none;border:0;background:none;padding:6px 0;cursor:pointer;font:500 15px/1.2 var(--text);color:var(--ink);border-bottom:1.5px solid transparent;transition:border-color .25s}
.filters button:hover{border-bottom-color:var(--ln2)}
.filters button[aria-pressed=true]{border-bottom-color:var(--ink)}
.filters em{font-style:normal;font-weight:400;margin-left:6px}

/* boards */
.boards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.bd{border-radius:24px;background:var(--paper);box-shadow:inset 0 0 0 1px var(--ln);padding:28px 28px 22px;display:flex;flex-direction:column;transition:box-shadow .35s}
.bd:hover{box-shadow:inset 0 0 0 1px var(--ln2)}
.bd[hidden]{display:none}
.bd__head{display:flex;justify-content:space-between;align-items:flex-start;gap:20px}
.bd__cat{font-size:13.5px;font-weight:500}
.bd__n{font:500 24px/1.15 var(--display);letter-spacing:-.025em;margin-top:6px}
.bd__score{text-align:right;flex:none}
.bd__score b{display:block;font:500 52px/.9 var(--display);letter-spacing:-.05em;font-variant-numeric:tabular-nums}
.bd__score span{display:block;font-size:13.5px;margin-top:8px}
.bd__d{font-size:14.5px;line-height:1.55;margin-top:16px}
.bd__d.clip{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.bd__more{appearance:none;border:0;background:none;padding:0;margin-top:6px;font:500 14px/1.3 var(--text);color:var(--ink);text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--ln2);cursor:pointer;align-self:flex-start}
.bd__rank{display:flex;align-items:center;gap:10px;font-size:14px;font-weight:500;margin-top:20px;padding-top:16px;border-top:1px solid var(--ln)}
.bd__rank i{font-style:normal;font-weight:400}
.rows{list-style:none;padding:0;margin:14px 0 0;display:grid;gap:2px}
.row{display:grid;grid-template-columns:18px minmax(0,11rem) minmax(0,1fr) 3.4rem;gap:12px;align-items:center;min-height:32px;padding:0 8px;margin:0 -8px;border-radius:10px;transition:background .2s}
.row:hover{background:var(--hov)}
.row[hidden]{display:none}
.row img{width:16px;height:16px;object-fit:contain}
.row__n{font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.row__t{position:relative;height:8px;border-radius:8px;background:rgba(23,24,27,.06);overflow:hidden}
.row__t i{position:absolute;inset:0 auto 0 0;width:var(--w);border-radius:8px;background:var(--bar);transform:scaleX(0);transform-origin:left;transition:transform 1.1s var(--e);transition-delay:calc(var(--k,0)*35ms)}
.row__v{text-align:right;font:500 14px/1 var(--display);font-variant-numeric:tabular-nums}
.row.me .row__n,.row.me .row__v{font-weight:600}
.row.me .row__t i{background:var(--ink)}
.bd.in .row__t i{transform:scaleX(1)}
.bd__all{appearance:none;border:0;background:none;cursor:pointer;padding:10px 0 0;font:500 14px/1.3 var(--text);color:var(--ink);text-align:left;text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--ln2)}
.bd__foot{margin-top:auto;padding-top:18px;font-size:13px;line-height:1.55}
.bd__foot .ln{display:flex;flex-wrap:wrap;gap:4px 14px;margin-top:6px}
.bd__foot a{text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--ln2)}
.bd__foot a:hover{text-decoration-color:var(--ink)}
.bd__note{margin-top:8px}

/* running cost */
.cost{border-radius:24px;background:var(--paper);box-shadow:inset 0 0 0 1px var(--ln);padding:28px}
.cost__head{display:grid;grid-template-columns:1.25fr 1fr 1fr;border-bottom:1px solid var(--ln);margin-bottom:22px}
.cs{padding:0 24px 24px;border-left:1px solid var(--ln)}
.cs:first-child{border-left:0;padding-left:0}
.cs__k{font-size:14px;font-weight:500}
.cs__v{display:block;font:500 clamp(40px,4.6vw,64px)/.95 var(--display);letter-spacing:-.05em;margin-top:14px;font-variant-numeric:tabular-nums}
.cs__v.sm{font-size:clamp(32px,3.2vw,44px)}
.cs__d{display:block;font-size:14px;margin-top:10px}
.cost__bar{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px 24px;margin-bottom:14px}
.seg{display:inline-flex;gap:20px}
.seg button{appearance:none;border:0;background:none;padding:6px 0;cursor:pointer;font:500 14.5px/1.2 var(--text);color:var(--ink);border-bottom:1.5px solid transparent}
.seg button:hover{border-bottom-color:var(--ln2)}
.seg button[aria-pressed=true]{border-bottom-color:var(--ink)}
.cgrid{display:grid;grid-template-columns:18px minmax(8rem,11rem) minmax(0,1fr) 5.4rem 4rem;gap:14px;align-items:center}
.caxis{height:26px;border-bottom:1px solid var(--ln)}
.caxis .tk{position:relative;height:100%}
.caxis .tk span{position:absolute;top:5px;transform:translateX(-50%);font-size:12px;font-variant-numeric:tabular-nums;white-space:nowrap}
.clist{list-style:none;padding:4px 0 0;margin:0}
.crow{min-height:34px;border-bottom:1px solid rgba(23,24,27,.05);padding:0 8px;margin:0 -8px;border-radius:8px;transition:background .2s}
.crow:last-child{border-bottom:0}
.crow:hover{background:var(--hov)}
.crow[hidden]{display:none}
.crow img{width:16px;height:16px;object-fit:contain}
.crow .n{font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.crow .v{text-align:right;font:500 14px/1 var(--display);font-variant-numeric:tabular-nums}
.crow .x{text-align:right;font-size:13px;font-variant-numeric:tabular-nums}
.crow.me .n,.crow.me .v{font-weight:600}
.ctrack{position:relative;height:34px}
.ctrack .gap{position:absolute;top:50%;height:2px;margin-top:-1px;left:var(--b);width:calc(var(--p) - var(--b));background:linear-gradient(90deg,rgba(23,24,27,.55),rgba(23,24,27,.2));border-radius:2px;transform-origin:left;transform:scaleX(0)}
.ctrack .dot{position:absolute;top:50%;left:var(--b);width:10px;height:10px;margin:-5px 0 0 -5px;border-radius:50%;background:rgba(23,24,27,.45);box-shadow:0 0 0 3px var(--paper)}
.crow.me .dot{width:12px;height:12px;margin:-6px 0 0 -6px;background:var(--ink)}
.crow.me .gap{display:none}
.cost.in .dot{left:var(--p);transition:left 1.1s var(--e) calc(var(--k,0)*45ms)}
.cost.in .gap{transform:scaleX(1);transition:transform 1.1s var(--e) calc(var(--k,0)*45ms)}
.cost__foot{font-size:13px;line-height:1.55;margin-top:16px}
.cost__note{font-size:13.5px;line-height:1.6;margin-top:18px;max-width:90ch}

/* methodology */
.meth{list-style:none;padding:0;margin:0;counter-reset:m;border-top:1px solid var(--ln)}
.meth li{counter-increment:m;display:grid;grid-template-columns:56px 1fr;padding:22px 0;border-bottom:1px solid var(--ln);font-size:16px;line-height:1.65}
.meth li::before{content:counter(m);font-size:13px;font-weight:600;padding-top:4px}
.meth__x{font-size:14px;margin-top:20px}

/* closing */
.end{padding:120px 0 0}
.end__art{position:relative;overflow:hidden;border-radius:28px;min-height:clamp(380px,36vw,500px);display:grid;place-items:center;padding:40px 20px;
  background:url("./paintings/capri.jpg") center 55%/cover no-repeat;box-shadow:0 0 0 1px var(--ln)}
.end__glass{width:min(520px,100%);text-align:center;padding:38px 34px 34px;border-radius:24px;
  background:linear-gradient(180deg,rgba(30,30,34,.5),rgba(16,16,19,.66));
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.18),inset 0 1px 0 rgba(255,255,255,.3),0 40px 90px rgba(0,0,0,.35);
  -webkit-backdrop-filter:blur(24px) saturate(1.5);backdrop-filter:blur(24px) saturate(1.5)}
.end__glass,.end__glass *{color:var(--light)}
.end__glass h2{font:500 clamp(30px,3.2vw,42px)/1.05 var(--display);letter-spacing:-.04em}
.end__glass p{font-size:16px;margin-top:12px}
.end__btns{display:flex;justify-content:center;flex-wrap:wrap;gap:10px;margin-top:26px}
.end__btns .btn--light{color:var(--ink)}

/* footer */
.foot{padding:72px 0 56px;margin-top:120px;border-top:1px solid var(--gl)}
.foot__in{display:flex;flex-wrap:wrap;justify-content:space-between;gap:24px;font-size:14px}
.foot__in a{text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--ln2)}
.foot__l{display:flex;align-items:center;gap:10px}
.foot__l img{width:22px;height:22px;border-radius:5px}
.foot__credit{width:100%;font-size:13px;line-height:1.55}

/* tooltip */
.tip{position:fixed;z-index:50;max-width:280px;padding:10px 12px;border-radius:12px;background:var(--ink);color:var(--light);font-size:13px;line-height:1.45;pointer-events:none;box-shadow:0 12px 30px rgba(23,24,27,.25)}
.tip b{display:block;font-weight:600}

/* motion */
.rv{opacity:0;transform:translate3d(0,26px,0);transition:opacity .9s var(--e),transform 1.1s var(--e);transition-delay:calc(var(--i,0)*70ms)}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .rv{opacity:1;transform:none;transition:none}
  .row__t i{transform:none;transition:none}
  .ctrack .dot,.ctrack .gap{transition:none!important}
}

/* responsive */
@media (max-width:1000px){
  .hero__head,.sec__head{grid-template-columns:1fr;gap:18px}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat:nth-child(3){border-left:0}
  .stat:nth-child(n+3){border-top:1px solid rgba(245,244,242,.12)}
  .strong{grid-template-columns:1fr}
  .boards{grid-template-columns:1fr}
  .cost__head{grid-template-columns:1fr 1fr}
  .cs:first-child{grid-column:1/-1;padding-bottom:20px;border-bottom:1px solid var(--ln);margin-bottom:20px}
  .cs:nth-child(2){border-left:0;padding-left:0}
}
@media (max-width:760px){
  :root{--cw:calc(100vw - 40px);--go:10px}
  .top__nav{display:none}.brand__sub{display:none}.top__in{justify-content:space-between}
  .hero{padding-top:56px}.sec,.end{padding-top:88px}
  .stage{border-radius:22px;padding:14px}
  .stat{padding:20px 18px}
  .bd,.cost,.sc{padding:22px;border-radius:20px}
  .bd__score b{font-size:44px}
  .row{grid-template-columns:16px minmax(0,1fr) 3rem;grid-template-areas:"l n v" "t t t";row-gap:4px;padding:6px 8px}
  .row img{grid-area:l}.row__n{grid-area:n}.row__v{grid-area:v}.row__t{grid-area:t}
  .cgrid{grid-template-columns:16px minmax(0,1fr) auto auto;gap:10px}
  .caxis{grid-template-columns:minmax(0,1fr)}.caxis>span:not(.tk){display:none}.caxis .tk span:first-child{display:none}
  .crow{grid-template-areas:"l n v x" "t t t t";row-gap:2px;padding:6px 8px}
  .crow img{grid-area:l}.crow .n{grid-area:n}.crow .v{grid-area:v}.crow .x{grid-area:x}.crow .ctrack{grid-area:t;height:16px}
  .meth li{grid-template-columns:40px 1fr;font-size:15px}
  .end__art{border-radius:22px}
}
/* fixes */
.stat__v{font-size:clamp(34px,3.6vw,54px)}
.stat__v.long{font-size:clamp(28px,2.9vw,44px)}
.bd__rank{gap:6px}
.foot__l{gap:10px}
/* odd board count: last card spans both columns, rows in two columns */
@media (min-width:1001px){
  .boards .bd.last-odd{grid-column:1/-1}
  .boards .bd.last-odd .rows{grid-template-columns:1fr 1fr;column-gap:40px}
}

/* ===== pass 2 ===== */
/* at a glance */
.glance{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--ln)}
.gl{display:grid;grid-template-columns:1fr auto;grid-template-areas:"c c" "n s" "b b" "r r";align-items:end;gap:4px 16px;padding:26px 28px 24px;text-decoration:none;
  border-bottom:1px solid var(--ln);border-left:1px solid var(--ln);transition:background .3s}
.gl:nth-child(3n+1){border-left:0;padding-left:0}
.gl:nth-child(3n){padding-right:0}
.gl:hover{background:var(--hov)}
.gl__c{grid-area:c;font-size:13.5px;font-weight:500}
.gl__n{grid-area:n;font:500 22px/1.15 var(--display);letter-spacing:-.025em}
.gl__s{grid-area:s;font:500 44px/.9 var(--display);letter-spacing:-.05em;font-variant-numeric:tabular-nums}
.gl__bar{grid-area:b;position:relative;height:4px;border-radius:4px;background:rgba(23,24,27,.08);margin-top:16px;overflow:hidden}
.gl__bar i{position:absolute;inset:0 auto 0 0;width:var(--w);background:var(--ink);border-radius:4px;transform:scaleX(0);transform-origin:left;transition:transform 1.2s var(--e) .15s}
.gl.in .gl__bar i{transform:scaleX(1)}
.gl__r{grid-area:r;font-size:14px;margin-top:8px}
/* boards: calmer */
.bd{padding:30px 30px 24px}
.bd__head{align-items:flex-end}
.bd__about{margin-top:14px}
.bd__about summary{list-style:none;cursor:pointer;font-size:14px;font-weight:500;display:inline-flex;align-items:center;gap:8px}
.bd__about summary::-webkit-details-marker{display:none}
.bd__about summary::after{content:"+";font-weight:400;font-size:16px;line-height:1;transition:transform .3s var(--e)}
.bd__about[open] summary::after{transform:rotate(45deg)}
.bd__about p{font-size:14.5px;line-height:1.6;margin-top:10px}
.bd__rank{margin-top:18px}
.row{min-height:34px}
.row__t{height:6px}
.bd__foot{font-size:13px;padding-top:16px;margin-top:auto;border-top:1px solid var(--ln)}
.bd__foot>p:first-child{margin-top:0}
.bd__all{padding:12px 0 14px}
@media (max-width:1000px){.glance{grid-template-columns:repeat(2,minmax(0,1fr))}.gl:nth-child(3n+1){border-left:1px solid var(--ln);padding-left:28px}.gl:nth-child(3n){padding-right:28px}.gl:nth-child(2n+1){border-left:0;padding-left:0}.gl:nth-child(2n){padding-right:0}}
@media (max-width:760px){.glance{grid-template-columns:1fr}.gl{border-left:0!important;padding:20px 0!important}.gl__s{font-size:36px}}
@media (prefers-reduced-motion:reduce){.gl__bar i{transform:none;transition:none}}
@media (max-width:760px){
  .glance{grid-template-columns:repeat(2,minmax(0,1fr))}
  .gl{grid-template-areas:"c" "n" "s" "b" "r";grid-template-columns:1fr;padding:18px 14px 18px 0!important;align-items:start}
  .gl:nth-child(2n){border-left:1px solid var(--ln)!important;padding-left:14px!important;padding-right:0!important}
  .gl__n{font-size:17px}.gl__s{font-size:32px;margin-top:10px}.gl__bar{margin-top:12px}.gl__r{font-size:13px}
  .glance .gl:last-child:nth-child(odd){grid-column:1/-1}
}