/* Datum Nine v5 (fictional architecture studio). Design concept by Gmax Media. Phone first.
   Surface on the measured Olson Kundig system (research/templates/architect/teardown-olsonkundig.md):
   ground rgb(24,18,19), white type, full bleed media with radius 0, one statement 28.2/32.9 weight 500 set bottom left
   (x 13, measure 362), actions are underlined text inside the sentence, transparent 60 px header, links 16/22 weight 300,
   small print 12.2 weight 500. Type twin of the reference grotesk: Host Grotesk. Data voice (ours): B612. */
@font-face{font-family:"Host Grotesk";src:url("../fonts/hostgrotesk-var.woff2") format("woff2");font-weight:300 800;font-display:swap}
@font-face{font-family:"B612";src:url("../fonts/b612-400.woff2") format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"B612";src:url("../fonts/b612-700.woff2") format("woff2");font-weight:700;font-display:swap}

:root{
  --ground:rgb(24,18,19); --white:#fff; --dim:rgb(176,170,168);
  --sans:"Host Grotesk","Helvetica Neue",Helvetica,Arial,sans-serif; --data:"B612","Host Grotesk",sans-serif;
  --gut:13px; --bar:60px; --say:1.765rem; --say-lh:1.167; --link:1rem; --fine:.765rem;
  --ease:cubic-bezier(.22,1,.36,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;background:var(--ground)}
body{color:#fff;background:rgb(24,18,19);font-family:var(--sans);font-size:var(--link);font-weight:300;line-height:1.382;letter-spacing:.01em;background:var(--ground);color:var(--white);-webkit-font-smoothing:antialiased;overflow-x:hidden}
body.is-visiting{overflow:hidden}
img{display:block;max-width:100%}
a{color:inherit}
button{font:inherit;letter-spacing:inherit;color:inherit;background:none;border:0;cursor:pointer;-webkit-tap-highlight-color:transparent;text-align:left}
ol,ul{list-style:none}
.vh{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}

/* the statement voice (measured): 28.2 / 32.9, weight 500, left, balanced */
h1,h2,.say-b,.cap,.r-say{font-size:var(--say);line-height:var(--say-lh);font-weight:500;letter-spacing:.006em;text-wrap:balance}
.lk,h1 a,.r-say .lk{display:inline;text-decoration:underline;text-decoration-thickness:.07em;text-underline-offset:.14em;font-weight:500;transition:background .15s,color .15s}
.lk:active,h1 a:active{background:var(--white);color:var(--ground);text-decoration-color:transparent}
.lk2{font-size:var(--link);font-weight:300;text-decoration:underline;text-underline-offset:.2em}

/* header: transparent over the media, wordmark left, state right */
.bar{position:fixed;left:0;right:0;top:0;z-index:40;height:var(--bar);display:flex;align-items:center;justify-content:space-between;padding:0 var(--gut);pointer-events:none}
.bar>*{pointer-events:auto}
.mark{font-size:1.4rem;font-weight:300;letter-spacing:0;text-decoration:none}
.state{display:flex;gap:10px;align-items:baseline;font-family:var(--data);font-size:.8125rem;font-weight:400;letter-spacing:.02em}
.state b{font-weight:700;font-variant-numeric:tabular-nums}

/* home: the aerial photograph is the map */
.home{position:relative;height:min(100svh,115.2vw);min-height:420px;overflow:hidden;background:var(--ground)}
.map,.map svg{position:absolute;inset:0;width:100%;height:100%}
.map svg{display:block;--u:3}
.shade{fill:var(--ground);opacity:.08}
.home::after,.home::before{content:"";position:absolute;left:0;right:0;pointer-events:none;z-index:1}
.home::before{top:0;height:120px;background:linear-gradient(rgba(24,18,19,.62),rgba(24,18,19,0))}
.home::after{bottom:0;height:62%;background:linear-gradient(rgba(24,18,19,0),rgba(24,18,19,.42) 50%,rgba(24,18,19,.8))}
.shore,.track,.route,.lead{vector-effect:non-scaling-stroke;stroke:var(--white)}
.shore{stroke-width:1.2;stroke-opacity:.9}
.track{stroke-width:1;stroke-opacity:.75}
.route{stroke-width:2.6;stroke-dasharray:1 1.02;stroke-dashoffset:1;transition:stroke-dashoffset .7s var(--ease)}
.route.is-drawn{stroke-dashoffset:0}
.mk{cursor:pointer}
.mk .in{transform:scale(var(--u))}
.mk .ring{fill:rgba(24,18,19,.34);stroke:var(--white);stroke-width:1.5}
.mk .fill{fill:var(--white);transform:scale(0);transition:transform .45s var(--ease)}
.mk.is-sel .fill{transform:scale(1)}
.mk text{font-family:var(--data);font-size:12.5px;font-weight:700;fill:var(--white);text-anchor:middle}
.mk.is-sel text{fill:var(--ground)}
.mk .hit{fill:transparent}
.chip{opacity:0;pointer-events:none;transition:opacity .35s .15s}
.mk.is-sel .chip{opacity:1}
.lead{stroke-width:1.2;fill:none}
.legend{position:absolute;right:var(--gut);top:calc(var(--bar) + 6px);z-index:2;display:flex;align-items:center;gap:8px;font-family:var(--data);font-size:.75rem}
.legend i{width:44px;height:5px;border:1px solid var(--white);border-top:0}
.legend b{position:relative;font-weight:700;margin-left:8px;padding-top:9px}
.legend b::before{content:"";position:absolute;left:50%;top:0;width:1px;height:8px;border-left:1px solid currentColor}
.say{position:absolute;left:var(--gut);right:15px;bottom:15px;z-index:2;display:grid}
.say-a,.say-b{grid-area:1/1;align-self:end;transition:opacity .3s}
.say-b{opacity:0;pointer-events:none}
.say.is-sel .say-a{opacity:0;pointer-events:none}
.say.is-sel .say-b{opacity:1;pointer-events:auto}

/* line drawings: every stroke has pathLength=1 and draws in */
.draw path{stroke-dasharray:1 1.02;stroke-dashoffset:1;transition:stroke-dashoffset 1.2s var(--ease)}
.lbl{opacity:0;transition:opacity .5s .6s}
.is-drawn .draw path{stroke-dashoffset:0}
.is-drawn .lbl{opacity:1}
.draw path:nth-child(2){transition-delay:.1s}.draw path:nth-child(3){transition-delay:.2s}.draw path:nth-child(4){transition-delay:.3s}
.draw path:nth-child(5){transition-delay:.38s}.draw path:nth-child(n+6){transition-delay:.46s}
.ghost{opacity:.26}

/* index: one full bleed photograph per site, the sentence set on it */
.rows li{position:relative;height:133.3vw;max-height:100svh;overflow:hidden}
.rows img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.rows li::after{content:"";position:absolute;left:0;right:0;bottom:0;height:60%;background:linear-gradient(rgba(24,18,19,0),rgba(24,18,19,.82));pointer-events:none}
.r-no{position:absolute;left:var(--gut);top:15px;z-index:1;font-family:var(--data);font-size:.8125rem;font-weight:700}
.r-say{position:absolute;left:var(--gut);right:15px;bottom:15px;z-index:1}

/* office + footer (measured: links 16 / 22 weight 300, small print 12.2 weight 500) */
.office{padding:88px 15px 72px var(--gut)}
.office h2{max-width:13em}
.office p{max-width:34em;margin-top:22px}
.foot{padding:28px 15px 30px var(--gut);border-top:1px solid rgba(255,255,255,.22)}
.foot-l{display:grid;grid-template-columns:1fr 1.7fr;gap:10px;margin-bottom:34px}
.foot a{text-decoration:none}
.foot li{padding:1px 0}
.fine{font-size:var(--fine);font-weight:500;line-height:1.382;color:var(--dim);max-width:44em}
.fine+.fine{margin-top:4px}

/* site visit: everything sits on the photograph */
.visit{position:fixed;inset:0;z-index:30;background:var(--ground);overflow:hidden;touch-action:none;
  clip-path:circle(0px at var(--cx,50%) var(--cy,50%));pointer-events:none;visibility:hidden;transition:clip-path .75s cubic-bezier(.6,0,.2,1),visibility 0s .75s}
.visit.is-open{clip-path:circle(150% at var(--cx,50%) var(--cy,50%));pointer-events:auto;visibility:visible;transition:clip-path .75s cubic-bezier(.6,0,.2,1),visibility 0s}
.pano{position:absolute;inset:0;cursor:grab;z-index:0;isolation:isolate}
.view{position:absolute;inset:0;overflow:hidden;opacity:0;transform:scale(1.14);transform-origin:50% 56%;transition:transform .7s cubic-bezier(.5,0,.2,1),opacity .35s .3s}
.view.is-cur{opacity:1;transform:scale(1)}
.view.is-past{opacity:0;transform:scale(1.8)}
.view img{position:absolute;top:0;left:0;height:100%;width:auto;max-width:none;user-select:none;-webkit-user-drag:none}
.view.fit img{top:0;height:100%;width:100%;object-fit:cover}
.vshade{position:absolute;inset:0;z-index:1;pointer-events:none;background:linear-gradient(rgba(24,18,19,.66),rgba(24,18,19,0) 132px),linear-gradient(rgba(24,18,19,0) 44%,rgba(24,18,19,.5) 72%,rgba(24,18,19,.84))}
.tape,.back,.deck{z-index:2}
.sheet{z-index:3}
.tape{position:absolute;left:0;right:0;top:var(--bar);height:30px;overflow:hidden}
.tape-in{position:absolute;left:0;top:0;height:100%;width:1620px}
.tape-in span{position:absolute;top:0;width:1px;height:6px;background:var(--white);opacity:.8}
.tape-in span.m{height:11px;opacity:1}
.tape-in em{position:absolute;top:14px;transform:translateX(-50%);font-family:var(--data);font-style:normal;font-size:.8125rem;font-weight:700;line-height:1}
.tape>i{position:absolute;left:50%;top:0;width:0;height:0;margin-left:-6px;border:6px solid transparent;border-top:9px solid var(--white)}
.tape::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:var(--white)}
.back{position:absolute;left:var(--gut);top:calc(var(--bar) + 40px)}
.deck{position:absolute;left:var(--gut);right:15px;bottom:15px}
.ruler{position:relative;height:9px;border-bottom:1px solid var(--white);--r:0}
.ruler::before,.ruler::after{content:"";position:absolute;bottom:0;width:1px;height:9px;background:var(--white)}
.ruler::before{left:0}.ruler::after{right:0}
.ruler i{position:absolute;bottom:-1px;left:calc(var(--r) * (100% - 56px));width:56px;height:5px;background:var(--white);transition:left .5s var(--ease)}
.meta{display:flex;justify-content:space-between;align-items:baseline;margin:9px 0 8px;font-family:var(--data);font-size:.8125rem;font-weight:700}
.cnt{font-weight:400;font-variant-numeric:tabular-nums}
.cnt b{font-size:1.25rem;font-weight:700}
.sheet{position:absolute;inset:0;padding:calc(var(--bar) + 4px) 15px 15px var(--gut);display:flex;flex-direction:column;transform:translateY(102%);transition:transform .6s var(--ease);
  background:linear-gradient(rgba(24,18,19,.5),rgba(24,18,19,.3) 30%,rgba(24,18,19,.62)),var(--ph,none) 50% 50%/cover var(--ground)}
.visit.is-sheet .sheet{transform:none}
.sheet-h{display:flex;gap:10px;font-family:var(--data);font-size:.8125rem}
.sheet-h span:first-child{font-weight:700}
.sheet-d{flex:1;min-height:0;display:flex;align-items:center}
.sheet-d svg{display:block;width:100%;max-height:100%;color:var(--white)}
.sheet-d path{vector-effect:non-scaling-stroke}
.sheet-d text{font-family:var(--data);font-size:12.5px;fill:var(--white)}
.sheet-d text.b{font-weight:700}

@media (prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important}html{scroll-behavior:auto}}

/* desktop: same system, larger statement, the photograph still fills the window */
@media (min-width:900px){
  :root{--gut:clamp(22px,2.2vw,40px);--bar:72px;--say:clamp(2.2rem,3.2vw,3.6rem);--link:1.125rem}
  .home{height:100svh}
  .state,.legend,.meta,.sheet-h,.tape-in em{font-size:.9375rem}
  .mk text{font-size:13px}
  .say,.deck,.r-say{right:auto;max-width:21em;bottom:var(--gut)}
  .deck{width:min(44vw,640px)}
  .rows{display:grid;grid-template-columns:1fr 1fr}
  .rows li{height:66vw;max-height:92svh}
  .rows li:first-child{grid-column:1/-1;height:92svh}
  .rows .r-say{font-size:clamp(1.5rem,2vw,2.2rem)}
  .office{padding:140px var(--gut) 120px}
  .foot{padding:36px var(--gut) 40px}
  .foot-l{grid-template-columns:200px 1fr}
  .sheet{left:auto;width:min(620px,46vw);padding-left:28px;transform:translateX(102%)}
  .sheet .cap{font-size:1.6rem}
  .lk:hover,h1 a:hover{background:var(--white);color:var(--ground);text-decoration-color:transparent}
}