/* Sift · sift.cc · Issue 00, a manifesto · tokens from brand/system/BRAND.md · Helvetica only, TeX Gyre Heros as the free twin */
@font-face{font-family:"Heros";src:url(fonts/texgyreheros-regular.otf) format("opentype");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Heros";src:url(fonts/texgyreheros-bold.otf) format("opentype");font-weight:700;font-style:normal;font-display:swap}
@font-face{font-family:"Heros";src:url(fonts/texgyreheros-italic.otf) format("opentype");font-weight:400;font-style:italic;font-display:swap}
:root{
  --paper:#FFFFFF; --ink:#0D0D0C; --red:#E8251A; --wash:#F4F4F1;
  --ghost:rgba(13,13,12,.14); --quiet:rgba(13,13,12,.56);
  --h:"Helvetica Neue",Helvetica,"Heros",Arial,sans-serif;
  --m:max(16px,calc(100vw / 36)); --g:calc(var(--m) / 2); --u:8px;
  --ease:cubic-bezier(.2,.7,.1,1);
  --D1:clamp(52px,12.4vw,184px); --D2:clamp(30px,5.4vw,76px); --D3:clamp(24px,2.6vw,38px);
  --L:clamp(18px,1.55vw,23px); --T:16px; --M:clamp(10px,.8vw,11.5px);
  color-scheme:light;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--h);font-size:var(--T);line-height:1.45;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-variant-numeric:tabular-nums}
h1,h2,h3,p,ol,ul,figure,dl,dd,blockquote{margin:0;padding:0}
ol,ul{list-style:none}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
img{display:block;max-width:100%;height:auto}
::selection{background:var(--red);color:#fff}
:focus-visible{outline:2px solid var(--red);outline-offset:3px}
.vh{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap}
.skip{position:absolute;left:var(--m);top:-60px;background:var(--ink);color:var(--paper);padding:10px 14px;z-index:60}
.skip:focus{top:12px}
.m{font-size:var(--M);text-transform:uppercase;letter-spacing:.06em;line-height:1.55}
.q{color:var(--quiet)} .red{color:var(--red)}
.d1,.d2,.d3{font-weight:400;letter-spacing:-.045em;line-height:.92;text-wrap:balance}
.d1{font-size:var(--D1)} .d2{font-size:var(--D2);letter-spacing:-.04em;line-height:.98} .d3{font-size:var(--D3);letter-spacing:-.03em;line-height:1.02}
.lead{font-size:var(--L);line-height:1.34;max-width:34em;text-wrap:pretty}
.big{font-size:clamp(24px,2.5vw,36px);line-height:1.12;letter-spacing:-.025em;text-wrap:balance}
.p{font-style:italic}
.grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));column-gap:var(--g);padding-inline:var(--m)}
.label{grid-column:1/5}

/* mark */
.mark{display:block;width:40px;height:40px;background:var(--red);position:relative;overflow:hidden;flex:none}
.mark span{position:absolute;left:2px;bottom:2px;color:#fff;font-weight:700;font-size:15.7px;letter-spacing:-.02em;line-height:.74}
.mark.small{width:56px;height:56px}.mark.small span{font-size:22px;left:2.5px;bottom:3px}

/* header */
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:30;background:var(--paper);display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;padding:calc(var(--u)*2) var(--m)}
.top-mid{justify-self:center;white-space:nowrap}
.cta{justify-self:end;border-bottom:1px solid currentColor;padding-bottom:2px;transition:color .2s}
.cta:hover{color:var(--red)}

/* intro (mark motion, once per session) */
.intro{position:fixed;inset:0;z-index:50;background:var(--paper);display:none;place-items:center}
.js .intro.on{display:grid}
.intro canvas{width:min(260px,52vw);height:auto;aspect-ratio:1}
.intro-skip{all:unset;position:absolute;right:var(--m);bottom:calc(var(--m) + env(safe-area-inset-bottom,0px));font-size:var(--M);letter-spacing:.06em;text-transform:uppercase;cursor:pointer;border-bottom:1px solid currentColor}
.intro.out{animation:introOut 1.2s var(--ease) forwards}
@keyframes introOut{to{opacity:0;visibility:hidden}}

/* cover */
.cover{padding-top:calc(var(--u)*2)}
.cover-meta{padding-bottom:calc(var(--u)*2.5);border-bottom:1px solid var(--ink);margin-inline:var(--m);padding-inline:0}
.cover-meta .c1{grid-column:1/6}.cover-meta .c2{grid-column:6/10}.cover-meta .c3{grid-column:10/13;text-align:right}
.field{padding:calc(var(--u)*2) var(--m) 0;display:flex;flex-wrap:wrap;column-gap:.7em;row-gap:0;font-size:clamp(9px,.72vw,11px);line-height:1.5;letter-spacing:.03em;text-transform:uppercase;user-select:none;-webkit-user-select:none}
.field button{all:unset;cursor:pointer;white-space:nowrap;transition:color .7s var(--ease)}
.field button .n{color:var(--quiet);margin-right:.35em;transition:color .7s var(--ease)}
.field.sifted button{color:var(--ghost)} .field.sifted button .n{color:transparent}
.field button.kept,.field.sifted button.kept,.field button.kept .n,.field.sifted button.kept .n{color:var(--red)}
.field button:hover{color:var(--ink)} .field.sifted button:hover{color:var(--quiet)}
.field.picking button{color:var(--ink)} .field.picking button .n{color:var(--quiet)} .field.picking button.kept{color:var(--red)}
.field button:focus-visible{outline:2px solid var(--red);outline-offset:2px}
.cover-line{padding-top:calc(var(--u)*4);align-items:end;row-gap:14px}
.cover-line h1{grid-column:1/11}
.cover-line .ratio{grid-column:11/13;justify-self:end;text-align:right}
.edit6{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));column-gap:var(--g);padding:calc(var(--u)*4) var(--m) 0}
.edit6 li{border-top:1px solid var(--ink);padding-top:10px;min-height:4.6em;opacity:0;transform:translateY(6px);transition:opacity .72s var(--ease),transform .72s var(--ease)}
.edit6.on li{opacity:1;transform:none}
.edit6 li .p{display:block;font-size:clamp(16px,1.4vw,21px);line-height:1.12;margin-top:6px;text-transform:none;letter-spacing:-.01em;overflow-wrap:anywhere}
.standfirst{padding-top:calc(var(--u)*5);align-items:start;row-gap:20px}
.standfirst .lead{grid-column:5/11}
.standfirst .acts{grid-column:1/5;grid-row:1;display:flex;flex-wrap:wrap;gap:12px 22px;align-items:center}
.textbtn{all:unset;cursor:pointer;font-size:var(--M);text-transform:uppercase;letter-spacing:.06em;border-bottom:1px solid currentColor;padding-bottom:2px;transition:color .2s}
.textbtn:hover{color:var(--red)} .textbtn:focus-visible{outline:2px solid var(--red);outline-offset:3px}
.textbtn[disabled]{color:var(--ghost);cursor:default}

/* join */
.join{padding-top:calc(var(--u)*5);row-gap:40px}
.intro-c{grid-column:1/5;display:grid;gap:16px;align-content:start}
form.list{grid-column:5/13;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:var(--g);row-gap:calc(var(--u)*4)}
.f{display:grid;gap:8px}.f.wide{grid-column:1/-1}
.f label,.f legend{font-size:var(--M);text-transform:uppercase;letter-spacing:.06em}
.f input[type=text],.f input[type=email]{appearance:none;border:0;border-bottom:1px solid var(--ink);border-radius:0;background:transparent;padding:10px 0;font-size:var(--L);width:100%;transition:border-color .2s}
.f input::placeholder{color:var(--ghost)} .f input:focus{outline:none;border-bottom-color:var(--red)}
.f[data-invalid] input{border-bottom-color:var(--red)}
.f .err{font-size:13px;color:var(--red);min-height:1.2em}
fieldset.f{border:0;padding:0;margin:0}
.roles{display:flex;flex-wrap:wrap;gap:12px 26px;padding-top:8px}
.roles label{font-size:var(--L);text-transform:none;letter-spacing:0;cursor:pointer;display:inline-flex;gap:10px;align-items:baseline}
.roles input{appearance:none;width:11px;height:11px;border:1px solid var(--ink);border-radius:0;margin:0;position:relative;top:1px;cursor:pointer;transition:background .2s}
.roles input:checked{background:var(--red);border-color:var(--red)}
.submit-row{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between}
.btn{appearance:none;border:0;border-radius:0;background:var(--ink);color:#fff;height:52px;padding:0 30px;font-size:12px;text-transform:uppercase;letter-spacing:.07em;cursor:pointer;position:relative;overflow:hidden}
.btn::before{content:"";position:absolute;inset:0;background:var(--red);transform:scaleX(0);transform-origin:left;transition:transform .5s var(--ease)}
.btn:hover::before,.btn[aria-busy="true"]::before{transform:scaleX(1)}
.btn .lbl{position:relative;display:inline-block;transition:opacity .2s,transform .3s var(--ease)}
.btn .lbl.swap{opacity:0;transform:translateY(-6px)}
.done{grid-column:5/13;display:grid;gap:18px}.done[hidden]{display:none}

/* the shelf, last page */
.shelf{padding-top:calc(var(--u)*20)}
.shelf-head{padding-bottom:calc(var(--u)*3);border-bottom:1px solid var(--ink);align-items:end}
.shelf-head h2{grid-column:5/13}
.stage{position:relative;height:min(76vh,700px);min-height:460px;overflow:hidden}
.stage .line{position:absolute;left:var(--m);right:var(--m);top:60%;height:1px;background:var(--ink)}
.stage .obj{position:absolute;left:0;top:0;will-change:transform;cursor:pointer;user-select:none;-webkit-user-select:none}
.stage .obj img{display:block;width:100%;height:auto;pointer-events:none;-webkit-user-drag:none}
.stage .cap{position:absolute;font-size:var(--M);text-transform:uppercase;letter-spacing:.06em;opacity:0;transition:opacity .8s var(--ease);white-space:nowrap}
.stage .cap.on{opacity:1}
.stage .cap .red{margin-right:.45em}
.shelf-foot{padding-top:14px;padding-bottom:calc(var(--u)*6);align-items:baseline}
.shelf-foot p{grid-column:1/9}.shelf-foot .textbtn{grid-column:11/13;justify-self:end}

/* colophon */
.colophon{border-top:1px solid var(--ink);padding-top:calc(var(--u)*3);padding-bottom:calc(var(--u)*10);row-gap:18px}
.colophon .c1{grid-column:1/4}.colophon .c2{grid-column:4/8;display:grid;gap:8px}.colophon .c3{grid-column:8/13;display:grid;gap:8px;padding-right:110px}

/* sound */
.sound{position:fixed;right:calc(env(safe-area-inset-right,0px) + 16px);bottom:calc(env(safe-area-inset-bottom,0px) + 16px);z-index:40;appearance:none;border:0;background:var(--paper);color:var(--ink);padding:10px 12px;min-height:40px;cursor:pointer;border-bottom:1px solid var(--ink)}
.sound[aria-pressed="true"]{color:var(--red);border-color:var(--red)}

@media (max-width:900px){
  .top{grid-template-columns:auto 1fr auto}.folio{display:none}
  .edit6{grid-template-columns:repeat(3,minmax(0,1fr));row-gap:18px}
  .ba,.faces{grid-template-columns:1fr;row-gap:56px}
  .seats{grid-template-columns:1fr 1fr}
  .nums li{grid-column:span 6}
}
@media (max-width:640px){
  .label,.sh h2,.cover-line h1,.cover-line .ratio,.standfirst .lead,.standfirst .acts,.spread .fig,.spread .prose,.hundred,.hundred-txt,.words>div,.pull p,.intro-c,form.list,.done,.shelf-head h2,.shelf-foot p,.shelf-foot .textbtn,.nums li,.colophon>div{grid-column:1/-1}
  .cover-meta .c1{grid-column:1/-1}.cover-meta .c2,.cover-meta .c3{display:none}
  .cover-line .ratio{justify-self:start;text-align:left}
  .field button:nth-child(n+81):not(.kept){display:none}
  .standfirst .acts{grid-row:auto}
  .edit6{grid-template-columns:repeat(2,minmax(0,1fr))}
  form.list{grid-template-columns:1fr}
  .seats{grid-template-columns:1fr}
  .rules li .m{grid-column:1/3}.rules li p{grid-column:3/13}
  .shelf-foot .textbtn{justify-self:start}
  .colophon .c3{padding-right:0}.colophon{padding-bottom:96px}
  .cta{font-size:10px}
}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important}html{scroll-behavior:auto}}

/* v3 · manifesto */
.fig{display:grid;gap:10px}
.fig img{width:100%;background:var(--wash);opacity:0;transition:opacity 1.3s var(--ease)}
.fig img.in{opacity:1}
.manifesto{padding-top:calc(var(--u)*22)}
.mline{padding:0 var(--m);max-width:15em;font-size:clamp(34px,6.4vw,104px)}
.mspread{padding-top:calc(var(--u)*10);padding-bottom:calc(var(--u)*16);align-items:end;row-gap:32px}
.mspread .fig{grid-column:1/5}
.mtext{grid-column:6/12;display:grid;gap:28px}
.q2{color:var(--quiet)}
.vows{padding-top:calc(var(--u)*8);row-gap:24px}
.vows li{grid-column:span 4;border-top:1px solid var(--ink);padding-top:12px;display:grid;gap:10px;align-content:start}
.faces{padding-top:calc(var(--u)*22);row-gap:24px;align-items:end}
.faces .label{grid-column:1/5;align-self:start;padding-top:10px}
.faces-h{grid-column:5/13;padding-bottom:calc(var(--u)*5)}
.face-a{grid-column:1/5}
.face-b{grid-column:5/13}
.face-b img{aspect-ratio:16/10;object-fit:cover}
.face-note{grid-column:5/13}
/* the red callout */
.open{margin-top:calc(var(--u)*22);background:var(--red);color:#fff;padding-block:calc(var(--u)*12)}
.open ::selection{background:#fff;color:var(--red)}
.open-in{row-gap:28px}
.open .label{grid-column:1/5;color:#fff}
.open-h{grid-column:1/13;font-weight:400;font-size:clamp(40px,7.4vw,124px);letter-spacing:-.045em;line-height:.92;text-wrap:balance;max-width:13em}
.open-sub{grid-column:5/11;color:#fff}
.open form.list{grid-column:5/13;padding-top:calc(var(--u)*3)}
.open .f label,.open .f legend,.open .roles label{color:#fff}
.open .f input[type=text],.open .f input[type=email]{border-bottom-color:#fff;color:#fff}
.open .f input::placeholder{color:rgba(255,255,255,.55)}
.open .f input:focus{border-bottom-color:var(--ink)}
.open .f[data-invalid] input{border-bottom-color:var(--ink)}
.open .f .err{color:var(--ink)}
.open .roles input{border-color:#fff}
.open .roles input:checked{background:#fff;border-color:#fff}
.open .btn{background:#fff;color:var(--ink)}
.open .btn::before{background:var(--ink)}
.open .btn:hover .lbl,.open .btn[aria-busy="true"] .lbl{color:#fff}
.open .done{grid-column:5/13;color:#fff}
.open :focus-visible{outline-color:#fff}
/* corners */
.corner-l{position:fixed;left:calc(env(safe-area-inset-left,0px) + 16px);bottom:calc(env(safe-area-inset-bottom,0px) + 16px);z-index:40;display:flex;gap:6px;align-items:center;background:var(--paper);padding:10px 12px;min-height:40px;border-bottom:1px solid var(--ink)}
.lang{all:unset;cursor:pointer;letter-spacing:.06em;padding:2px 2px}
.lang[aria-pressed="true"]{color:var(--red)}
.lang:focus-visible{outline:2px solid var(--red);outline-offset:3px}
.shelf-head h2{grid-column:1/13}
.colophon .c2{grid-column:4/8}.colophon .c3{grid-column:8/13;padding-right:110px}
@media (max-width:900px){.top-mid{display:none}.top{grid-template-columns:auto 1fr auto}}
@media (max-width:640px){
  .mspread .fig,.mtext,.vows li,.faces .label,.faces-h,.face-a,.face-b,.face-note,.open .label,.open-h,.open-sub,.open form.list,.open .done{grid-column:1/-1}
  .face-a{max-width:70%}
  .colophon{padding-bottom:110px}
}

/* v4 · hero, breaker, demo (JJ review 29.09.26: clear in 3 seconds, fewer words, slower) */
.top{display:flex;justify-content:space-between;align-items:center}
.hero{min-height:min(calc(100svh - 72px),980px);align-content:end;row-gap:calc(var(--u)*3);padding-bottom:calc(var(--u)*8)}
.hero h1{grid-column:1/-1}
.hero-sub{grid-column:1/8;font-size:clamp(20px,2.3vw,34px);line-height:1.18;letter-spacing:-.02em;text-wrap:balance;max-width:20em}
.manifesto{padding-top:calc(var(--u)*14)}
.breaker{padding-top:calc(var(--u)*22)}
.breaker .field{border-top:1px solid var(--ink);padding:calc(var(--u)*2) 0 0;margin-inline:var(--m)}
.breaker-foot{padding-top:calc(var(--u)*2.5);align-items:baseline;row-gap:10px}
.breaker-foot>p:first-child{grid-column:1/3}
.breaker-cap{grid-column:3/10}
.breaker-foot .textbtn{grid-column:10/13;justify-self:end}
.faces .demo{grid-column:1/-1;display:grid;grid-template-columns:repeat(12,minmax(0,1fr));column-gap:var(--g);row-gap:40px;align-items:start;padding-top:calc(var(--u)*2)}
.d-post{grid-column:1/5;display:grid;gap:10px}
.d-tap{all:unset;cursor:pointer;position:relative;display:block;overflow:hidden;background:var(--wash)}
.d-tap img{width:100%;aspect-ratio:4/5;object-fit:cover;transition:transform 1.6s var(--ease)}
.d-tap:hover img{transform:scale(1.015)}
.d-tap:focus-visible{outline:2px solid var(--red);outline-offset:3px}
.d-dot{position:absolute;width:16px;height:16px;margin:-8px 0 0 -8px;background:var(--red);opacity:0;transform:scale(.3);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.d-dot.on{opacity:1;transform:none}
.d-post figcaption{display:flex;gap:.6em;align-items:baseline}
.d-side{border-top:1px solid var(--ink);padding-top:12px}
.d-page{grid-column:5/9}.d-rec{grid-column:9/13}
.d-lab{margin-bottom:22px}
.d-shelf{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--g);align-items:end;border-bottom:1px solid var(--ink)}
.d-shelf li{display:grid;gap:10px;opacity:0;transform:translateY(14px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.d-shelf li.on{opacity:1;transform:none}
.d-shelf img{height:clamp(80px,9vw,140px);width:100%;object-fit:contain;object-position:bottom}
.d-shelf .m{padding-bottom:10px;min-height:3.2em}
.d-rows li{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:baseline;border-bottom:1px solid var(--ghost);padding:14px 0;font-size:var(--L);opacity:.14;transition:opacity .9s var(--ease)}
.d-rows li.on{opacity:1}
.d-rows b{font-weight:400;letter-spacing:-.01em}
.d-rows span{font-size:var(--M);text-transform:uppercase;letter-spacing:.06em}
@media (max-width:900px){.d-post{grid-column:1/-1;max-width:520px}.d-page,.d-rec{grid-column:1/-1}}
@media (max-width:640px){
  .hero-sub,.breaker-foot>p:first-child,.breaker-cap,.breaker-foot .textbtn{grid-column:1/-1}
  .breaker-foot .textbtn{justify-self:start}
}

/* v5 · two heroes (?hero=sieve · ?hero=kept), the mission line, the recognition demo */
.hero{grid-template-rows:1fr auto;align-content:stretch;padding-top:calc(var(--u)*2)}
.hero-art{grid-row:1;align-self:end;margin:0}
.hero-type{grid-column:1/-1;grid-row:2;display:grid;row-gap:calc(var(--u)*3);padding-top:calc(var(--u)*4)}
html[data-hero="sieve"] .hero-kept,html[data-hero="kept"] .hero-sieve{display:none}
.hero-sieve{grid-column:1/7;width:min(62vh,46vw);aspect-ratio:1;background:var(--red)}
.hero-sieve canvas{display:block;width:100%;height:100%}
.hero-kept{grid-column:7/13;justify-self:end;width:min(52vh,40vw);display:grid;gap:10px}
.hk-frame{position:relative;aspect-ratio:4/5;background:var(--wash);overflow:hidden}
.hk-frame img{width:100%;height:100%;object-fit:cover;transition:opacity .9s var(--ease)}
.hk-frame.swap img{opacity:0}
.hk-box{position:absolute;border:1.5px solid var(--red);transition:all 1.2s var(--ease)}
.hk-frame.swap .hk-box{opacity:0}
.hk-box::before{content:"";position:absolute;left:-1.5px;top:-8px;width:8px;height:8px;background:var(--red)}
.mission{padding:calc(var(--u)*16) var(--m) 0;max-width:17em;font-size:clamp(30px,5.2vw,84px)}
.d-tap .d-box{position:absolute;border:1.5px solid #fff;opacity:0;transform:scale(1.04);transition:opacity .8s var(--ease),transform .8s var(--ease),border-color .8s}
.d-tap .d-box.on{opacity:1;transform:none}
.d-tap .d-box.kept{border-color:var(--red)}
.d-tap .d-box.out{border-style:dashed;border-color:rgba(255,255,255,.75)}
.d-lbl{position:absolute;left:-1.5px;bottom:100%;white-space:nowrap;font-size:9.5px;letter-spacing:.06em;text-transform:uppercase;padding:3px 5px 2px;background:#fff;color:var(--ink);line-height:1.2}
.d-box.kept .d-lbl{background:var(--red);color:#fff}
.d-box.out .d-lbl{color:var(--quiet)}
.d-shelf li{align-content:end}
.d-crop{display:block;height:clamp(90px,10vw,150px);background-repeat:no-repeat;justify-self:start;max-width:100%}
.d-left{margin-top:14px;opacity:0;transition:opacity .9s var(--ease)}
.d-left.on{opacity:1}
@media (max-width:900px){.hero-sieve{width:min(56vh,62vw)}.hero-kept{width:min(50vh,52vw)}}
@media (max-width:640px){
  .hero-sieve{grid-column:1/-1;width:100%}
  .hero-kept{grid-column:1/-1;width:100%;justify-self:stretch}
  .hk-frame{aspect-ratio:auto;height:min(58svh,480px)}
  .hero-type{padding-top:calc(var(--u)*3)}
  .d-lbl{font-size:8.5px}
}
@media (max-width:640px){.d-box .d-lbl{display:none}.d-box:first-of-type .d-lbl{display:block}}