/* nothing may widen the page on a phone (a wide figure would zoom the whole page out); sticky scenes are unaffected */
html,body{overflow-x:clip}
/* Pages beyond the home: one calm column of chapters, each a short claim beside the real drawing that proves it. */
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
body.pg{background:var(--bg);color:var(--fg)}
.pg main{display:block}
.wrap{width:min(1180px,calc(100% - 48px));margin-inline:auto}
@media (max-width:640px){.wrap{width:calc(100% - 32px)}}

/* hero: the page's claim, then the thing itself */
.phero{text-align:center;padding:clamp(48px,9vh,112px) 0 0}
.phero .big{max-width:16ch}
.phero .big span,.ch h2 span,.close .big span,.band h2 span{color:var(--fg3)}
.phero .lede{margin:22px auto 0;max-width:46ch;font:450 clamp(17px,1.35vw,19px)/1.5 var(--sans);color:var(--fg2);text-wrap:pretty}
.phero .acts{display:flex;gap:10px;justify-content:center;margin-top:28px}
.btn.big{height:44px;padding:0 20px;font-size:15px;border-radius:12px}
.phero .stagewin{margin:clamp(40px,7vh,72px) auto 0;width:min(1280px,calc(100% - 32px))}

/* a window: real output, framed like a sheet pinned to the wall */
.win{position:relative;margin:0;border-radius:20px;overflow:hidden;background:var(--soft);
  box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--fg) 8%,transparent),0 30px 60px -30px var(--shadow)}
.win img{display:block;width:100%;height:auto}
.win.paper{background:#fff}
.win.paper img{mix-blend-mode:multiply}
.win.tall img{height:min(78vh,760px);width:100%;object-fit:contain}
:root[data-theme="dark"] .win.paper,
:root:not([data-theme="light"]) .win.paper{background:#fff}
.win figcaption{position:absolute;left:14px;bottom:12px;padding:5px 10px;border-radius:8px;background:var(--glass);backdrop-filter:blur(10px);font:500 12.5px var(--sans);color:var(--fg2)}

/* chapters */
.chs{padding:var(--sec) 0 0;display:flex;flex-direction:column;gap:var(--sec)}
.ch{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(32px,5vw,72px);align-items:center}
.ch.flip{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}
.ch.flip .tx{order:2}
.ch.wide{grid-template-columns:1fr}
.ch.wide .tx{max-width:720px}
.ch h2{margin:0;font:650 clamp(28px,3vw,42px)/1.04 var(--sans);letter-spacing:-.04em;text-wrap:balance}
.ch p{margin:18px 0 0;font:450 17px/1.55 var(--sans);color:var(--fg2);text-wrap:pretty;max-width:52ch}
.spec{list-style:none;margin:26px 0 0;padding:0;border-top:1px solid var(--line)}
.spec li{display:grid;grid-template-columns:minmax(120px,38%) 1fr;gap:16px;padding:13px 0;border-bottom:1px solid var(--line);font:450 14.5px/1.5 var(--sans);color:var(--fg2)}
.spec li b{font-weight:600;color:var(--fg)}
@media (max-width:860px){.ch,.ch.flip{grid-template-columns:1fr}.ch.flip .tx{order:0}.spec li{grid-template-columns:1fr;gap:3px}}

/* a pair or trio of windows */
.duo{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.trio{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media (max-width:860px){.duo,.trio{grid-template-columns:1fr}}

/* a reel: renders that scroll sideways under the hand */
.reel{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px max(24px,calc((100vw - 1180px)/2)) 24px;scrollbar-width:none;margin-top:36px}
.reel::-webkit-scrollbar{display:none}
.reel .win{flex:0 0 min(78vw,760px);scroll-snap-align:center}
.reel .win img{aspect-ratio:1067/833;object-fit:cover}

/* the list of everything: names down a ruled sheet */
.all{padding:var(--sec) 0 0}
.all h2{margin:0 0 28px;font:650 clamp(28px,3vw,42px)/1.04 var(--sans);letter-spacing:-.04em}
.all dl{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:48px;margin:0}
.all dl>div{display:grid;grid-template-columns:minmax(140px,36%) 1fr;gap:16px;padding:15px 0;border-top:1px solid var(--line)}
.all dt{font:600 14.5px/1.45 var(--sans);color:var(--fg)}
.all dd{margin:0;font:450 14.5px/1.5 var(--sans);color:var(--fg2)}
@media (max-width:860px){.all dl{grid-template-columns:1fr}.all dl>div{grid-template-columns:1fr;gap:3px}}

/* a quiet band of short facts set in large type */
.band{padding:var(--sec) 0 0;text-align:center}
.band h2{margin:0 auto;max-width:20ch;font:650 clamp(30px,3.6vw,52px)/1.04 var(--sans);letter-spacing:-.045em;text-wrap:balance}
.names{display:flex;flex-wrap:wrap;justify-content:center;gap:10px 28px;margin:32px auto 0;max-width:900px;padding:0;list-style:none;font:500 clamp(17px,1.6vw,22px)/1.3 var(--sans);letter-spacing:-.02em;color:var(--fg2)}
.names li{position:relative}
.names li+li::before{content:"";position:absolute;left:-16px;top:50%;width:4px;height:4px;margin-top:-2px;border-radius:50%;background:var(--fg3)}

/* closing: the brief box, and Rev waiting beside it */
.close{position:relative;text-align:center;padding:calc(var(--sec) + 24px) 16px clamp(40px,5vh,64px)}
.close .big{max-width:14ch}
.cbox{position:relative;display:flex;align-items:flex-end;gap:10px;width:min(640px,100%);margin:36px auto 0;padding:14px 14px 12px 20px;border-radius:20px;background:var(--glass);
  box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--fg) 9%,transparent),0 24px 60px -18px var(--shadow);text-align:left}
.cbox textarea{flex:1;border:0;outline:0;resize:none;background:transparent;font:450 17px/1.45 var(--sans);color:var(--fg);padding:4px 0;min-height:52px}
.cbox textarea::placeholder{color:var(--fg3)}
.cbox:focus-within{box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--accent) 55%,transparent),0 0 0 3px color-mix(in srgb,var(--accent) 22%,transparent),0 24px 60px -18px var(--shadow)}
.cbox .go{flex:none}
.cbox .go svg{width:16px;height:16px}
.close .rev{position:absolute;width:clamp(72px,7vw,96px);right:max(16px,calc(50% - 432px));bottom:calc(clamp(96px,14vh,150px) - 6px);cursor:pointer}
@media (max-width:900px){.close .rev{right:16px;bottom:calc(clamp(96px,14vh,150px) + 70px)}}
@media (max-width:760px){.close .rev{position:relative;right:auto;bottom:auto;display:block;margin:28px auto 0}}

/* footer: the brand, the tagline, one line on what Clairvyn offers and the social accounts beside two link columns; the legal line; then
   the company's name set huge across the footer column (pages.js fits it). Every row on the header's edges and the
   page's twelve columns. */
footer.foot{--fw:min(var(--max),calc(100% - 2*max(var(--gut),env(safe-area-inset-left,0px))));--fwa:22%;position:relative;overflow:hidden;border-top:1px solid var(--line);
  margin-top:0;padding:clamp(36px,2vw + 26px,64px) 0 0}
footer.foot .fin{width:var(--fw);margin:0 auto;display:grid;grid-template-columns:repeat(12,minmax(0,1fr));column-gap:var(--cg);align-items:start}
footer.foot .fbrand{grid-column:1/7;min-height:0}
footer.foot .fbrand .brand{display:inline-flex;align-items:center;gap:.3em;margin:-.12em 0 0;font:650 clamp(30px,1vw + 24px,40px)/1.1 var(--sans);letter-spacing:-.045em;color:var(--fg)}
footer.foot .fbrand .mark{width:1.12em;height:1.12em}
footer.foot .ftag{max-width:none;margin:4px 0 0;font:500 clamp(15px,.2vw + 13.5px,16.5px)/1.4 var(--sans);letter-spacing:.035em;color:var(--accent)}
footer.foot .fline{max-width:32ch;margin:clamp(16px,.8vw + 10px,22px) 0 0;font:450 clamp(15.5px,.2vw + 14px,17px)/1.5 var(--sans);letter-spacing:-.008em;color:var(--fg2);text-wrap:pretty}
.fsoc{display:flex;gap:4px;margin:clamp(18px,1vw + 12px,26px) 0 0 -12px}
.fsoc a{display:grid;place-items:center;width:44px;height:44px;border-radius:10px;color:var(--fg2);transition:color .2s,background-color .2s}
.fsoc svg{width:20px;height:20px;fill:currentColor}
footer.foot nav{display:block;margin:0;gap:0;font:inherit;color:inherit}
footer.foot nav a{padding:0;border-radius:0}
footer.foot .fcol{grid-column:7/10;margin-top:-4px}
footer.foot .fcol+.fcol{grid-column:10/13}
.fcol ul{list-style:none;margin:0;padding:0}
.fcol a{display:flex;align-items:center;width:fit-content;min-width:44px;min-height:38px;font:500 15.5px/1.25 var(--sans);letter-spacing:-.01em;color:var(--fg2);text-decoration:none;transition:color .15s}
footer.foot .fbase{grid-column:1/-1;width:auto;margin:clamp(24px,2vw + 14px,44px) 0 0;padding:8px 0 0;display:grid;grid-template-columns:subgrid;align-items:center;border:0;border-top:1px solid var(--line);font:450 13.5px/1.4 var(--sans);color:var(--fg2)}
.fbase>span{grid-column:1/7}
footer.foot .fbase nav{grid-column:7/13;display:flex;flex-wrap:wrap;gap:0 28px}
.fbase nav a{display:flex;align-items:center;min-height:44px;color:var(--fg2);text-decoration:none;transition:color .15s}
footer.foot a:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
@media (hover:hover){.fsoc a:hover{color:var(--fg);background:var(--soft)}.fcol a:hover,.fbase nav a:hover{color:var(--fg)}}
@media (pointer:coarse){.fcol a{min-height:44px}}
footer.foot .fword{position:relative;width:var(--fw);margin:clamp(4px,.8vw,16px) auto 0;padding-bottom:env(safe-area-inset-bottom,0px);overflow:visible}
.fword span{display:inline-block;vertical-align:bottom;margin-left:-.045em;padding:.04em 0 .12em;font:700 clamp(84px,19vw,262px)/.8 var(--sans);white-space:nowrap;letter-spacing:-.07em;color:transparent;
  background:linear-gradient(180deg,color-mix(in srgb,var(--accent) var(--fwa),transparent),color-mix(in srgb,var(--accent) 6%,transparent));-webkit-background-clip:text;background-clip:text;user-select:none}
:root[data-theme="dark"] footer.foot{--fwa:30%}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) footer.foot{--fwa:30%}}
.fword .rev{display:none}
/* tablets and phones: the brand row on its own, then the two link columns side by side; every band kept tight so the
   whole footer, wordmark included, fits one screen under the header */
@media (max-width:860px){
  footer.foot .fbrand{grid-column:1/-1}
  footer.foot .fcol{grid-column:1/7;margin-top:clamp(20px,3vw + 8px,36px)}
  footer.foot .fcol+.fcol{grid-column:7/13}
}
@media (max-width:520px){
  .fbase>span,footer.foot .fbase nav{grid-column:1/-1}
  .fbase>span{padding:10px 0 2px}
}


/* arrival: text rises, drawings develop from the top like a print coming out of the plotter */
@media (prefers-reduced-motion:no-preference){
  [data-in]{opacity:0;transform:translateY(22px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
  [data-in].in{opacity:1;transform:none}
  .win[data-in]{transform:translateY(34px) scale(.985)}
  .win[data-in] img{clip-path:inset(0 0 100% 0);transition:clip-path 1.5s var(--ease) .15s}
  .win[data-in].in img{clip-path:inset(0)}
  [data-in][data-d="1"]{transition-delay:.08s}[data-in][data-d="2"]{transition-delay:.16s}[data-in][data-d="3"]{transition-delay:.24s}
}

/* nav: the page you are on stays marked */
nav a[aria-current="page"]{color:var(--fg)}

/* plain prose (legal) */
.prose{width:min(720px,calc(100% - 40px));margin:0 auto;padding:clamp(48px,9vh,96px) 0 clamp(80px,12vh,140px);font:450 16px/1.65 var(--sans);color:var(--fg2)}
.prose h1{margin:0 0 8px;font:700 clamp(36px,4.4vw,56px)/1 var(--sans);letter-spacing:-.05em;color:var(--fg)}
.prose .when{margin:0 0 40px;color:var(--fg3);font-size:14px}
.prose h2{margin:44px 0 10px;font:650 21px/1.25 var(--sans);letter-spacing:-.02em;color:var(--fg)}
.prose h3{margin:28px 0 8px;font:600 17px/1.3 var(--sans);color:var(--fg)}
.prose a{color:var(--accent-2)}
.prose li{margin:6px 0}

/* questions: closed until asked; the heading in the first four of the twelve columns, the questions in the other eight */
.faq{padding:var(--sec) 0 0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:var(--cg);align-items:start}
.faq h2{grid-column:1/-1;margin:0 0 var(--hgap);font:650 clamp(28px,3vw,42px)/1.04 var(--sans);letter-spacing:-.04em}
.faq details{border-bottom:1px solid var(--line)}
.faq details:nth-of-type(-n+2){border-top:1px solid var(--line)}
@media (max-width:760px){.faq{grid-template-columns:minmax(0,1fr)}.faq details:nth-of-type(2){border-top:0}}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:16px;padding:18px 0;font:550 16.5px/1.4 var(--sans);color:var(--fg)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";flex:none;width:10px;height:10px;margin-top:6px;border-right:1.6px solid var(--fg3);border-bottom:1.6px solid var(--fg3);transform:rotate(45deg);transition:transform .25s var(--ease)}
.faq details[open] summary::after{transform:rotate(225deg) translate(-3px,-3px)}
.faq details p{margin:0 0 20px;max-width:64ch;font:450 15.5px/1.6 var(--sans);color:var(--fg2)}
.all dl>div{padding:12px 0}
.all dt{font-size:14px}.all dd{font-size:13.5px;color:var(--fg2)}

/* the flow: numbered steps on the left; one app frame on the right plays the step being read (Krafa's sticky split) */
.story{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,7fr);gap:clamp(32px,5vw,72px);padding-top:clamp(48px,8vh,96px)}
.story .steps{list-style:none;margin:0;padding:0}
.story .step{min-height:78vh;display:flex;flex-direction:column;justify-content:center;opacity:.32;transition:opacity .5s var(--ease)}
.story .step.on{opacity:1}
.story .step:first-child{min-height:60vh}
.story h3{margin:10px 0 0;font:650 clamp(26px,2.6vw,36px)/1.06 var(--sans);letter-spacing:-.04em;text-wrap:balance}
.story h3 span{color:var(--fg3)}
.story p{margin:14px 0 0;max-width:40ch;font:450 16.5px/1.55 var(--sans);color:var(--fg2)}
.story p a{color:var(--accent-2)}
.story .stick{position:sticky;top:calc(64px + 7vh);height:fit-content}
.screen{position:relative;border-radius:18px;overflow:hidden;background:#f8f7f4;aspect-ratio:16/10;
  box-shadow:0 0 0 1px color-mix(in srgb,var(--fg) 10%,transparent),0 50px 100px -40px var(--shadow),0 24px 40px -24px color-mix(in srgb,var(--shadow) 60%,transparent)}
.screen video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .45s var(--ease)}
.screen video.on{opacity:1}
.screen .corner{position:absolute;z-index:2;left:14px;top:12px;font:500 11.5px var(--mono);letter-spacing:.06em;color:#8a83a8;text-transform:uppercase}
.story .inl{display:none}
@media (max-width:900px){.story{grid-template-columns:1fr}.story .stick{display:none}.story .step{min-height:0;opacity:1;padding:36px 0}.story .inl{display:block;margin-top:20px}
  .story .inl .screen video{opacity:1}}

/* detail: groups of short rows, in columns */
/* In detail, set as type: the group names large as an index; the chosen group's items beside it as a list, each its name
   and its line. A leader runs from the chosen name to the datum line. Every panel shares one grid cell, so nothing jumps. */
.dets{padding:var(--sec) 0 0}
.dets>h2{margin:0 0 var(--hgap);font:650 clamp(28px,3vw,42px)/1.04 var(--sans);letter-spacing:-.04em;max-width:24ch;text-wrap:balance}
.dets>h2 span{color:var(--fg3)}
.dxs{--dx-off:color-mix(in srgb,var(--fg3) 85%,var(--fg));--dx-k:4}
:root[data-theme="dark"] .dxs{--dx-off:var(--fg3)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .dxs{--dx-off:var(--fg3)}}
.dx-b{position:relative;display:grid;grid-template-columns:repeat(12,minmax(0,1fr));column-gap:var(--cg);align-items:stretch}
.dx-b::before{content:"";position:absolute;top:0;bottom:0;width:1px;background:var(--line);
  left:calc((100% - 11*var(--cg))/12*var(--dx-k) + (var(--dx-k) - .5)*var(--cg))}
.dx-ix{grid-column:1/5;display:flex;flex-direction:column;justify-content:space-between;position:relative}
.dx-ix button{appearance:none;-webkit-appearance:none;border:0;background:none;margin:0;padding:.08em 0;width:100%;min-height:44px;display:flex;align-items:center;gap:16px;
  text-align:left;cursor:pointer;color:var(--dx-off);font:650 clamp(26px,3vw,46px)/1.04 var(--sans);letter-spacing:-.04em;-webkit-tap-highlight-color:transparent;
  transition:color .35s var(--ease)}
.dx-ix button span{min-width:0;text-wrap:balance}
@media (hover:hover){.dx-ix button:hover{color:color-mix(in srgb,var(--dx-off) 50%,var(--fg))}}
.dx-ix button[aria-selected="true"]{color:var(--fg)}
.dx-ix button:focus-visible{outline:2px solid var(--accent);outline-offset:4px;border-radius:6px}
/* the leader: from the end of the chosen name to the datum line, ending in a dot on it */
.dx-ix i{flex:1 1 0;min-width:28px;height:9px;margin-right:calc(var(--cg)/-2 - 4px);
  background:linear-gradient(var(--fg),var(--fg)) left center/calc(100% - 5px) 1px no-repeat,radial-gradient(circle,var(--fg) 3px,transparent 3.6px) right center/9px 9px no-repeat;
  clip-path:inset(0 100% 0 0);transition:clip-path .5s var(--ease)}
.dx-ix button[aria-selected="true"] i{clip-path:inset(0 0 0 0)}
.dx-ps{grid-column:5/13;display:grid;align-content:start;container-type:inline-size;touch-action:pan-y}
.dx-p{grid-area:1/1;visibility:hidden;transition:visibility 0s .16s}
.dx-p.on{visibility:visible;transition:none}
/* the list: each item its name and its line, set as type on hairlines; two columns where the panel is wide */
.dx-p ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:minmax(0,1fr);column-gap:var(--cg);border-top:1px solid var(--line)}
@container (min-width:460px){.dx-p ul{grid-template-columns:repeat(2,minmax(0,1fr))}}
.dx-it{min-width:0;display:grid;align-content:start;gap:6px;padding:clamp(14px,1.6vw,20px) 0 clamp(16px,1.8vw,22px);border-bottom:1px solid var(--line)}
.dx-it b{font:600 clamp(18px,.6vw + 13px,22px)/1.2 var(--sans);letter-spacing:-.022em;color:var(--fg);text-wrap:balance}
.dx-d{margin:0;max-width:42ch;font:450 clamp(15px,.15vw + 14px,16.5px)/1.5 var(--sans);color:var(--fg2);text-wrap:pretty}
@media (prefers-reduced-motion:no-preference){
  .dx-it{opacity:0;translate:0 8px;transition:opacity .4s var(--ease) calc(var(--i)*70ms),translate .6s var(--ease) calc(var(--i)*70ms)}
  .dx-p.on .dx-it{opacity:1;translate:none}
  .dx-p:not(.on) .dx-it{transition:opacity .15s linear,translate .15s linear}
  .dx-ps{transition:translate .75s var(--ease)}
}
@media (prefers-reduced-motion:reduce){.dx-ix button,.dx-ix i{transition:none}}
.dx-ps{translate:0 var(--dy,0px)}
/* mid widths: a narrower index */
@media (max-width:860px){.dx-ix button{font-size:clamp(22px,3.2vw,30px);gap:12px}}
/* phones, and phones on their side: one row of names that scrolls sideways under the thumb, the list below it */
@media (max-width:560px),(orientation:landscape) and (max-height:520px){
  .dx-b{display:block}
  .dx-b::before{display:none}
  .dx-ix{flex-direction:row;gap:22px;overflow-x:auto;-webkit-mask-image:linear-gradient(90deg,#000 calc(100% - 36px),transparent);mask-image:linear-gradient(90deg,#000 calc(100% - 36px),transparent);padding-right:28px;scroll-snap-type:x proximity;scrollbar-width:none;overscroll-behavior-x:contain;
    margin:0 calc(-1*max(var(--gut),env(safe-area-inset-left,0px))) 10px;padding:0 max(var(--gut),env(safe-area-inset-left,0px));
    scroll-padding-inline:max(var(--gut),env(safe-area-inset-left,0px));
    -webkit-mask-image:linear-gradient(90deg,#000 calc(100% - 40px),transparent);mask-image:linear-gradient(90deg,#000 calc(100% - 40px),transparent)}
  .dx-ix::-webkit-scrollbar{display:none}
  .dx-ix::after{content:"";flex:0 0 18px}
  .dx-ix button{position:relative;width:auto;flex:0 0 auto;min-height:52px;white-space:nowrap;font-size:24px;scroll-snap-align:start}
  .dx-ix i{position:absolute;left:0;right:0;bottom:6px;min-width:0;height:2px;margin:0;background:var(--fg)}
  .dets>h2{max-width:none;font-size:clamp(24px,7vw,30px)}
  .dx-p ul{border-top:0}
  .dx-it{padding:8px 0 9px;gap:2px}
  .dx-it b{font-size:16px}.dx-d{font-size:14px;line-height:1.4}
}
@media (orientation:landscape) and (max-height:520px){
  .dets>h2{margin-bottom:10px;font-size:26px}.dx-ix button{min-height:48px;font-size:22px}
  .dx-p ul{grid-template-columns:repeat(2,minmax(0,1fr))}
  .dx-it{padding:5px 0 6px;gap:1px}.dx-it b{font-size:15px}.dx-d{font-size:13.5px;line-height:1.35}
}
/* wide but short screens (a laptop with a short window, two screens spanned): a smaller index, so the heading, the
   index and the list share one screen */
@media (min-width:561px) and (max-height:760px) and (orientation:landscape){.dx-ix button{font-size:clamp(22px,2.3vw,34px)}}
@media (max-width:360px){.dets>h2{margin-bottom:8px}.dx-ix button{min-height:46px;font-size:22px}.dx-it{padding:6px 0 7px}.dx-d{font-size:13.5px;line-height:1.35}}
/* keys */
.keys{padding:var(--sec) 0 0}
.keys h2{margin:0 0 24px;font:650 clamp(28px,3vw,42px)/1.04 var(--sans);letter-spacing:-.04em}
.keys ul{list-style:none;margin:0;padding:0;columns:2;column-gap:48px}
.keys li{break-inside:avoid;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:11px 0;border-bottom:1px solid var(--line);font:450 14.5px/1.4 var(--sans);color:var(--fg2)}
.keys .kc{flex:none;color:var(--fg3);font-size:12px}
kbd{display:inline-block;min-width:24px;padding:3px 7px;border-radius:7px;background:var(--bg);font:500 12px var(--mono);color:var(--fg);text-align:center;
  box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--fg) 14%,transparent),0 2px 0 color-mix(in srgb,var(--fg) 14%,transparent)}
@media (max-width:760px){.keys ul{columns:1}}

/* ---- header on small and mid screens: the page list moves into a menu sheet ---- */
.mnu{display:none;position:relative;width:44px;height:44px;margin-right:-8px;border:0;background:none;color:var(--fg);cursor:pointer;border-radius:12px}
.mnu i{position:absolute;left:13px;right:13px;height:1.6px;background:currentColor;border-radius:2px;transition:transform .35s var(--quint,cubic-bezier(.22,1,.36,1)),top .35s var(--quint,cubic-bezier(.22,1,.36,1))}
.mnu i:first-child{top:17px}.mnu i:last-child{top:25px}
.mnu[aria-expanded="true"] i:first-child{top:21px;transform:rotate(45deg)}.mnu[aria-expanded="true"] i:last-child{top:21px;transform:rotate(-45deg)}
.mnu:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.msheet{position:fixed;left:0;right:0;top:calc(64px + env(safe-area-inset-top,0px));bottom:0;z-index:9;background:var(--bg);display:flex;flex-direction:column;justify-content:space-between;
  padding:clamp(18px,4vh,40px) max(24px,env(safe-area-inset-right,0px)) calc(28px + env(safe-area-inset-bottom,0px)) max(24px,env(safe-area-inset-left,0px));overflow-y:auto;overscroll-behavior:contain}
.msheet[hidden]{display:none}
.msheet nav{display:flex;flex-direction:column;gap:0;margin:0;font:600 clamp(26px,7.4vw,46px)/1.12 var(--sans);letter-spacing:-.035em;color:var(--fg)}
.msheet nav a{border-radius:0;background:none;padding:clamp(8px,1.6vh,14px) 0;border-bottom:1px solid var(--line);color:inherit;text-decoration:none;opacity:0;transform:translateY(10px);transition:opacity .45s, transform .45s var(--quint,cubic-bezier(.22,1,.36,1)), color .2s}
.msheet nav a[aria-current="page"]{color:var(--accent)}
.msheet.open nav a{opacity:1;transform:none}
.msheet.open nav a:nth-child(2){transition-delay:.03s}.msheet.open nav a:nth-child(3){transition-delay:.06s}.msheet.open nav a:nth-child(4){transition-delay:.09s}
.msheet.open nav a:nth-child(5){transition-delay:.12s}.msheet.open nav a:nth-child(6){transition-delay:.15s}.msheet.open nav a:nth-child(7){transition-delay:.18s}
.mfoot{display:flex;gap:24px;align-items:center;padding-top:24px;font:500 16px var(--sans)}
.mfoot a,.mfoot button{min-height:44px;display:inline-flex;align-items:center;color:var(--fg2);text-decoration:none;background:none;border:0;font:inherit;cursor:pointer;padding:0}
body.mopen{overflow:hidden}
@media (max-width:1180px){header nav[aria-label="Main"]{display:none}.mnu{display:inline-flex}}
@media (max-width:640px){.hright .btn.plain{display:none}}
@media (max-width:380px){header .brand .word{display:none}.hright .tt{display:none}}
@media (prefers-reduced-motion:reduce){.msheet nav a{transition:none;opacity:1;transform:none}}

/* ---- one grid for the whole site: the header, the home stage and every page's .wrap share the same two edges ---- */
:root{--max:1280px;--gut:clamp(16px,3.2vw,40px);--edge:max(var(--gut),calc((100% - var(--max))/2));--cg:clamp(16px,2vw,28px);
  /* one vertical scale for every page: between sections, between scenes in a section, a heading to its content */
  --sec:clamp(56px,2.5vw + 32px,88px);--sub:clamp(40px,2vw + 24px,72px);--hgap:clamp(20px,1vw + 12px,32px)}
header{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;
  padding-left:max(var(--edge),env(safe-area-inset-left,0px));padding-right:max(var(--edge),env(safe-area-inset-right,0px))}
header>.brand{justify-self:start}
header>nav[aria-label="Main"]{justify-self:center;margin:0}
header>.hright{justify-self:end;margin-left:0}
@media (max-width:1180px){header{grid-template-columns:1fr auto}}
main{padding-left:max(var(--gut),env(safe-area-inset-left,0px));padding-right:max(var(--gut),env(safe-area-inset-right,0px))}
.wrap{width:min(var(--max),100%);margin-inline:auto}
.stage{width:min(var(--max),100%)}

/* two screens with a hinge (Surface Duo spanned): the column gap straddles the hinge, so a six-column half never
   crosses it; the closing brief box and the footer split at the middle */
@media (horizontal-viewport-segments:2),(min-width:1100px) and (max-width:1130px) and (max-height:740px){
  :root{--cg:44px}
  .dets>h2{max-width:calc(50% - var(--cg)/2)}
  .close{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:var(--cg);align-items:center;text-align:left;width:min(var(--max),100%);margin-inline:auto;padding-inline:0}
  .close .big{margin:0;max-width:none;font-size:clamp(34px,4vw,48px)}
  .close .cbox{margin:0;width:auto}
  .close .rev{display:none}
  footer.foot .fword{width:calc(var(--fw)/2 - var(--cg)/2);margin-left:max(var(--gut),env(safe-area-inset-left,0px),calc((100% - var(--max))/2))}
  .fword span{font-size:calc((50vw - var(--cg)/2 - var(--gut))/4.1)}
}
/* the theme switch: a 44 px tap area round its 36 px circle (nothing drawn) */
.tt{position:relative}.tt::after{content:"";position:absolute;inset:-4px;border-radius:50%}