/* Rapidly Viral: Spread Lab. Light lab bench, graph paper, propagation motion. */
:root{
  --paper:#FFFFFF;--tint:#FFF7F1;--tint2:#F7F3F6;--grid:#F2E8E1;
  --ink:#18141A;--plum:#2E2830;--muted:#5C5460;--line:#E7DEE4;
  --or:#E85D00;--or-hi:#FF7A1F;--or-ink:#B34700;--or-soft:#FFE3CF;
  --focus:#B34700;--wrap:1240px;
  --disp:'Bricolage Grotesque','Arial Narrow',system-ui,sans-serif;
  --sans:'IBM Plex Sans',ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,'Cascadia Mono',Consolas,monospace;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:16.5px/1.65 var(--sans);
  -webkit-font-smoothing:antialiased;overflow-x:hidden}
img,video,canvas,svg{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3,h4{margin:0;font-family:var(--disp);font-weight:800;line-height:1.04;
  letter-spacing:-.025em;text-wrap:balance;color:var(--ink)}
p{margin:0 0 1em}
ul{margin:0;padding:0;list-style:none}
button,input,select{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--focus);outline-offset:3px;border-radius:4px}
.vh{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:12px;top:-60px;z-index:100;background:var(--ink);color:#fff;
  padding:10px 16px;border-radius:8px;text-decoration:none;font-weight:600}
.skip:focus{top:12px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 28px}
.mono{font-family:var(--mono);font-size:12px;letter-spacing:.06em;text-transform:uppercase}
.paper{background-color:var(--tint);
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:28px 28px}

/* ---------- top bar ---------- */
.top{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);
  backdrop-filter:saturate(1.4) blur(8px);-webkit-backdrop-filter:saturate(1.4) blur(8px);
  border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:18px;min-height:68px}
.brand{display:block;flex:0 0 auto;line-height:0;border-radius:6px}
.brand img{height:42px;width:auto}
.nav{display:flex;gap:4px;margin-left:auto;align-items:center}
.nav a{text-decoration:none;font-weight:600;font-size:14.5px;padding:8px 12px;border-radius:999px;
  position:relative}
.nav a:hover{background:var(--tint)}
.nav a[aria-current="page"]{background:var(--ink);color:#fff}
.nav .lab{background:var(--or-hi);color:var(--ink)}
.nav .lab:hover{background:var(--or);color:#fff}
.menu{display:none;margin-left:auto}
.menu:not([open]) .mpanel{display:none}
.menu summary{list-style:none;cursor:pointer;font:600 14px/1 var(--sans);padding:10px 14px;
  border:1.5px solid var(--ink);border-radius:999px}
.menu summary::-webkit-details-marker{display:none}
.menu[open] summary{background:var(--ink);color:#fff}
.menu .mpanel{position:absolute;left:16px;right:16px;top:64px;background:#fff;border:1px solid var(--line);
  border-radius:16px;padding:10px;box-shadow:0 18px 40px rgba(24,20,26,.14);display:grid;gap:2px}
.menu .mpanel a{padding:12px 14px;border-radius:10px;text-decoration:none;font-weight:600}
.menu .mpanel a:hover{background:var(--tint)}

/* group launcher */
.launch{position:relative;flex:0 0 auto}
.launch summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:8px;
  font:500 11.5px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;
  padding:9px 12px;border-radius:999px;border:1px solid var(--line);background:#fff;white-space:nowrap}
.launch summary::-webkit-details-marker{display:none}
.launch summary::before{content:"";width:14px;height:14px;flex:0 0 14px;
  background:radial-gradient(circle,var(--or) 0 2.2px,transparent 2.6px) 0 0/7px 7px}
.launch[open] summary{background:var(--ink);color:#fff;border-color:var(--ink)}
.launchpanel{position:absolute;left:0;top:calc(100% + 10px);width:min(820px,calc(100vw - 32px));
  background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px 22px 22px;
  box-shadow:0 24px 60px rgba(24,20,26,.16);columns:3 200px;column-gap:24px;z-index:60}
.launchpanel h4{font:600 10.5px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;
  color:var(--or-ink);margin:12px 0 6px;break-after:avoid}
.launchpanel h4:first-child{margin-top:0}
.launchpanel a{display:block;text-decoration:none;font-size:14px;padding:4px 0;break-inside:avoid}
.launchpanel a:hover{color:var(--or-ink);text-decoration:underline}
.launchpanel a[aria-current="page"]{font-weight:700;color:var(--or-ink)}
.launchpanel a[aria-current="page"]::after{content:"  you are here";font:500 10px var(--mono);
  letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}

/* ---------- buttons, chips ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-weight:700;
  font-size:15.5px;padding:14px 22px;border-radius:999px;border:2px solid var(--ink);
  background:var(--ink);color:#fff;cursor:pointer;transition:transform .2s var(--ease),background .2s}
.btn:hover{transform:translateY(-2px)}
.btn.hot{background:var(--or-hi);border-color:var(--or-hi);color:var(--ink)}
.btn.hot:hover{background:#FF8C3B}
.btn.ghost{background:transparent;color:var(--ink)}
.btn.ghost:hover{background:var(--ink);color:#fff}
.btn.sm{font-size:13.5px;padding:9px 15px}
.chip{display:inline-flex;align-items:center;gap:7px;font:600 11px/1 var(--mono);letter-spacing:.08em;
  text-transform:uppercase;padding:7px 11px 7px 9px;border-radius:999px;background:#fff;
  border:1px solid var(--line);text-decoration:none;color:var(--ink)}
.chip i{width:9px;height:9px;border-radius:50%;background:var(--c,var(--or));flex:0 0 9px}
a.chip:hover{border-color:var(--ink)}

/* ---------- reveal (propagation) ---------- */
[data-rv]{opacity:0;transform:translateY(18px) scale(.985);
  transition:opacity .7s var(--ease) calc(var(--d,0)*90ms),transform .7s var(--ease) calc(var(--d,0)*90ms)}
[data-rv].in{opacity:1;transform:none}
.no-js [data-rv]{opacity:1;transform:none}
.trace{display:block;height:22px;width:min(320px,70%);margin:14px 0 0;overflow:visible}
.trace path{fill:none;stroke:var(--or);stroke-width:2.2;stroke-linecap:round;
  stroke-dasharray:400;stroke-dashoffset:400;transition:stroke-dashoffset 1.4s var(--ease)}
.trace circle{fill:var(--or);transform-box:fill-box;transform-origin:center;transform:scale(0);
  transition:transform .4s var(--ease)}
.in .trace path,.trace.in path{stroke-dashoffset:0}
.in .trace circle,.trace.in circle{transform:scale(1)}
.in .trace circle:nth-of-type(2){transition-delay:.35s}.in .trace circle:nth-of-type(3){transition-delay:.7s}
.in .trace circle:nth-of-type(4){transition-delay:1s}.in .trace circle:nth-of-type(5){transition-delay:1.2s}

/* ---------- section heads ---------- */
.sec{padding:96px 0}
.shead{display:grid;grid-template-columns:200px 1fr;gap:28px;margin-bottom:40px;align-items:start}
.shead .tag{font:600 12px/1.3 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--or-ink);
  padding-top:12px;border-top:2px solid var(--or)}
.shead h2{font-size:clamp(2.1rem,1.3rem + 3vw,3.7rem)}
.shead p{max-width:62ch;color:var(--muted);font-size:18px;margin:14px 0 0}

/* ---------- hero ---------- */
.hero{position:relative;padding:64px 0 80px;overflow:hidden;border-bottom:1px solid var(--line)}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.kick{display:inline-flex;align-items:center;gap:10px;font:600 12px/1 var(--mono);letter-spacing:.12em;
  text-transform:uppercase;color:var(--or-ink);background:#fff;border:1px solid var(--or-soft);
  padding:8px 12px;border-radius:999px}
.kick b{width:8px;height:8px;border-radius:50%;background:var(--or);box-shadow:0 0 0 0 rgba(232,93,0,.5);
  animation:ping 2.2s infinite}
@keyframes ping{0%{box-shadow:0 0 0 0 rgba(232,93,0,.55)}70%{box-shadow:0 0 0 12px rgba(232,93,0,0)}100%{box-shadow:0 0 0 0 rgba(232,93,0,0)}}
.hero h1{font-size:clamp(2.9rem,1.2rem + 6.2vw,6.4rem);line-height:.92;margin:22px 0 0;letter-spacing:-.04em}
.hero h1 em{font-style:normal;position:relative;white-space:nowrap;color:var(--or-ink)}
.hero h1 em svg{position:absolute;left:0;right:0;bottom:-.16em;width:100%;height:.3em;overflow:visible}
.hero h1 em path{fill:none;stroke:var(--or);stroke-width:5;stroke-linecap:round;stroke-dasharray:900;
  stroke-dashoffset:900;animation:draw 1.6s .4s var(--ease) forwards}
@keyframes draw{to{stroke-dashoffset:0}}
.hero .sub{font-size:clamp(1.05rem,.95rem + .5vw,1.3rem);max-width:40ch;margin:28px 0 30px;color:var(--plum)}
.hero .ctas{display:flex;gap:12px;flex-wrap:wrap}
.hero .facts{display:flex;gap:26px;margin-top:38px;flex-wrap:wrap}
.hero .facts div{font:600 12px/1.3 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.hero .facts b{display:block;font:800 34px/1 var(--disp);letter-spacing:-.03em;color:var(--ink);text-transform:none;margin-bottom:4px}
.dish{position:relative;aspect-ratio:4/5;border-radius:28px;overflow:hidden;background:var(--plum);
  box-shadow:0 40px 80px -30px rgba(46,40,48,.55);isolation:isolate}
.dish img,.dish video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.dish video{z-index:1}
.dish .halftone{position:absolute;inset:0;z-index:2;pointer-events:none;mix-blend-mode:multiply;opacity:.35;
  background:radial-gradient(circle at center,rgba(46,40,48,.9) 0 1px,transparent 1.6px) 0 0/6px 6px}
.dish .grain{position:absolute;inset:-50%;z-index:2;pointer-events:none;opacity:.14;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation:grain 1.2s steps(6) infinite}
@keyframes grain{0%{transform:translate(0,0)}20%{transform:translate(-4%,3%)}40%{transform:translate(3%,-2%)}60%{transform:translate(-2%,-4%)}80%{transform:translate(4%,2%)}100%{transform:translate(0,0)}}
.dish canvas{position:absolute;inset:0;width:100%;height:100%;z-index:3}
.dish .lbl{position:absolute;left:16px;right:16px;bottom:16px;z-index:4;display:flex;justify-content:space-between;
  gap:10px;align-items:flex-end;color:#fff}
.dish .lbl span{font:600 11px/1.4 var(--mono);letter-spacing:.08em;text-transform:uppercase;
  background:rgba(24,20,26,.72);padding:7px 10px;border-radius:8px;max-width:75%}
.vbtn{position:absolute;top:14px;right:14px;z-index:5;width:40px;height:40px;border-radius:50%;
  border:0;background:rgba(255,255,255,.92);color:var(--ink);cursor:pointer;display:grid;place-items:center}
.vbtn svg{width:16px;height:16px;fill:currentColor}
.vbtn[hidden]{display:none}
.hero .orbit{position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  border:1px dashed var(--or-soft);pointer-events:none}

/* strain ticker */
.strains{border-bottom:1px solid var(--line);background:#fff;overflow:hidden}
.strains .run{display:flex;gap:14px;padding:16px 0;width:max-content;animation:run 46s linear infinite}
.strains:hover .run,.strains:focus-within .run{animation-play-state:paused}
@keyframes run{to{transform:translateX(-50%)}}
.strains a{flex:0 0 auto}

/* ---------- LAB 01: spread sim ---------- */
.lab{background:#fff}
.bench{display:grid;grid-template-columns:1fr 340px;gap:22px;align-items:stretch}
.tank{position:relative;border-radius:24px;border:1px solid var(--line);overflow:hidden;min-height:440px}
.tank canvas{width:100%;height:100%;position:absolute;inset:0;cursor:crosshair;touch-action:manipulation}
.tank .hint{position:absolute;left:16px;top:14px;font:600 11.5px/1.4 var(--mono);letter-spacing:.06em;
  text-transform:uppercase;background:#fff;border:1px solid var(--line);padding:7px 10px;border-radius:8px;pointer-events:none}
.tank .legend{position:absolute;right:14px;top:14px;display:flex;gap:12px;background:#fff;border:1px solid var(--line);
  padding:7px 11px;border-radius:8px;font:500 11px/1 var(--mono);letter-spacing:.04em;text-transform:uppercase}
.legend span{display:inline-flex;align-items:center;gap:6px}
.legend i{width:9px;height:9px;border-radius:50%;display:inline-block}
.ctrl{border-radius:24px;background:var(--plum);color:#fff;padding:24px;display:flex;flex-direction:column;gap:18px}
.ctrl h3{color:#fff;font-size:22px}
.ctrl label{display:block;font-weight:600;font-size:14.5px}
.ctrl .val{float:right;font:600 13px var(--mono);color:var(--or-hi)}
.ctrl input[type=range]{width:100%;margin:10px 0 0;accent-color:var(--or-hi);height:28px}
.ctrl small{display:block;font-weight:400;color:#CFC6D2;font-size:12.5px;line-height:1.45;margin-top:4px}
.ctrl .tog,.tog{display:flex;align-items:flex-start;gap:12px;cursor:pointer}
.tog input{position:absolute;opacity:0;width:1px;height:1px}
.tog .sw{flex:0 0 44px;height:26px;border-radius:999px;background:#5A505C;position:relative;transition:background .2s;margin-top:2px}
.tog .sw::after{content:"";position:absolute;left:3px;top:3px;width:20px;height:20px;border-radius:50%;background:#fff;transition:transform .2s var(--ease)}
.tog input:checked + .sw{background:var(--or-hi)}
.tog input:checked + .sw::after{transform:translateX(18px)}
.tog input:focus-visible + .sw{outline:3px solid var(--or-hi);outline-offset:3px}
.ctrl .row{display:flex;gap:8px;flex-wrap:wrap;margin-top:auto}
.ctrl .row button{flex:1 1 auto;border:0;border-radius:999px;padding:11px 14px;font-weight:700;cursor:pointer;background:#fff;color:var(--ink)}
.ctrl .row button.go{background:var(--or-hi)}
.ctrl .row button:hover{filter:brightness(.94)}
.ctrl :focus-visible{outline-color:var(--or-hi)}
.readout{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:22px}
.readout div{border:1px solid var(--line);border-radius:16px;padding:14px 16px;background:#fff}
.readout b{display:block;font:800 clamp(26px,2.4vw,36px)/1 var(--disp);letter-spacing:-.03em}
.readout span{font:600 11px/1.3 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.waves{display:flex;align-items:flex-end;gap:4px;height:84px;margin-top:14px;padding:10px 14px;border:1px solid var(--line);border-radius:16px;background:var(--tint)}
.waves i{flex:1 1 0;max-width:34px;background:var(--or);border-radius:4px 4px 0 0;min-height:2px;transition:height .4s var(--ease)}
.waves em{font:600 11px var(--mono);text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-style:normal;align-self:center}
.verdict{margin-top:14px;padding:16px 18px;border-left:4px solid var(--or);background:var(--tint);border-radius:0 14px 14px 0;font-size:16px;min-height:58px}
.notes{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:40px}
.note{border-top:2px solid var(--ink);padding-top:14px}
.note .n{font:600 12px var(--mono);color:var(--or-ink);letter-spacing:.08em}
.note h3{font-size:21px;margin:6px 0 8px}
.note p{color:var(--muted);font-size:15px}
.note a{font-weight:700;color:var(--or-ink);text-decoration-thickness:2px;text-underline-offset:3px}
.disc{font-size:13.5px;color:var(--muted);margin-top:16px}

/* ---------- LAB 02: checklist ---------- */
.check .grid{display:grid;grid-template-columns:1fr 1fr 380px;gap:24px;align-items:start}
.col h3{font-size:22px;margin-bottom:6px}
.col .mono{color:var(--muted);display:block;margin-bottom:14px}
.ing{display:block;position:relative;margin:0 0 10px;cursor:pointer}
.ing input{position:absolute;opacity:0;width:1px;height:1px}
.ing .box{display:grid;grid-template-columns:28px 1fr;gap:12px;padding:14px 16px;border:1.5px solid var(--line);
  border-radius:16px;background:#fff;transition:border-color .2s,background .2s,transform .2s var(--ease)}
.ing .tick{width:26px;height:26px;border-radius:8px;border:2px solid var(--ink);display:grid;place-items:center;background:#fff}
.ing .tick svg{width:15px;height:15px;stroke:#fff;stroke-width:3;fill:none;opacity:0}
.ing b{display:block;font-size:15.5px;line-height:1.35}
.ing small{display:none;color:var(--muted);font-size:13.5px;line-height:1.45;margin-top:6px}
.ing input:checked + .box{border-color:var(--or);background:var(--tint);transform:translateX(4px)}
.ing input:checked + .box .tick{background:var(--or);border-color:var(--or)}
.ing input:checked + .box .tick svg{opacity:1}
.ing input:checked + .box small{display:block}
.ing input:focus-visible + .box{outline:3px solid var(--focus);outline-offset:2px}
.flag input:checked + .box{border-color:var(--plum);background:var(--tint2)}
.flag input:checked + .box .tick{background:var(--plum);border-color:var(--plum)}
.flag .tick{border-radius:50%}
.result{position:sticky;top:92px;border-radius:24px;background:var(--plum);color:#fff;padding:24px;overflow:hidden}
.result h3{color:#fff;font-size:22px}
.meter{margin-top:18px}
.meter .mh{display:flex;justify-content:space-between;font:600 12px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:#E7DFEA}
.meter .bar{height:14px;border-radius:999px;background:#4A404C;margin-top:8px;overflow:hidden}
.meter .bar i{display:block;height:100%;width:0;border-radius:999px;background:var(--or-hi);transition:width .6s var(--ease)}
.meter.trust .bar i{background:#F4EEF6}
.result .say{margin:20px 0 16px;font-size:16px;line-height:1.55;min-height:96px}
.result .next{border-top:1px solid #4A404C;padding-top:14px}
.result .next a{display:block;color:#fff;font-size:14.5px;padding:5px 0;text-decoration:underline;text-decoration-color:var(--or-hi);text-underline-offset:3px}
.result .row{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.result button{border:0;border-radius:999px;padding:11px 16px;font-weight:700;cursor:pointer;background:var(--or-hi);color:var(--ink)}
.result button.alt{background:#fff}
.result :focus-visible{outline-color:var(--or-hi)}

/* ---------- field notes (photos) ---------- */
.notesx{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:20px}
.fn{position:relative;display:block;text-decoration:none;border-radius:22px;overflow:hidden;background:var(--plum);
  color:#fff;min-height:420px;isolation:isolate}
.fn .ph{position:absolute;inset:0}
.fn .ph img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.fn .duo{filter:grayscale(1) contrast(1.15) brightness(1.05)}
.fn .ph::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(46,40,48,0) 30%,rgba(24,20,26,.88));z-index:3}
.fn .tone{position:absolute;inset:0;z-index:1;mix-blend-mode:multiply;background:linear-gradient(135deg,#FF7A1F,#2E2830)}
.fn .col{z-index:2;-webkit-mask-image:radial-gradient(circle at var(--x,50%) var(--y,50%),#000 var(--r,0px),transparent calc(var(--r,0px) + 60px));
  mask-image:radial-gradient(circle at var(--x,50%) var(--y,50%),#000 var(--r,0px),transparent calc(var(--r,0px) + 60px))}
.fn .t{position:absolute;left:0;right:0;bottom:0;z-index:4;padding:24px}
.fn .t .mono{color:var(--or-hi)}
.fn h3{color:#fff;font-size:clamp(24px,2vw,30px);margin:8px 0 8px}
.fn p{color:#EFE8F1;font-size:15px;margin:0;max-width:40ch}
.fn .go{display:inline-flex;margin-top:14px;font-weight:700;font-size:14px;border-bottom:2px solid var(--or-hi);padding-bottom:2px}
.fn.kb img{transition:transform 1.6s var(--ease),filter .8s}
.fn.kb .split{filter:sepia(.35) saturate(1.3) hue-rotate(-12deg) contrast(1.05)}
.fn.kb:hover img,.fn.kb:focus-visible img{transform:scale(1.08) translate(-1.5%,-1%)}
.fn.kb:hover .split,.fn.kb:focus-visible .split{filter:none}
.fn.kb .stamp{position:absolute;top:18px;left:18px;z-index:4;font:600 11px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;
  background:#fff;color:var(--ink);padding:8px 10px;border-radius:6px;transform:rotate(-3deg) translateY(-70px);transition:transform .6s var(--ease)}
.fn.kb:hover .stamp,.fn.kb:focus-visible .stamp{transform:rotate(-3deg) translateY(0)}
.fn.scan .strips{position:absolute;inset:0;z-index:2;display:grid;grid-template-rows:repeat(8,1fr)}
.fn.scan .strips i{background:var(--plum);transform-origin:right;transform:scaleX(var(--s,1))}
.fn.scan .lines{position:absolute;inset:0;z-index:2;pointer-events:none;opacity:.28;
  background:repeating-linear-gradient(0deg,rgba(0,0,0,.6) 0 1px,transparent 1px 4px)}

/* alert desk: lens */
.alert{background:var(--tint2)}
.alert .grid{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center}
.lens{position:relative;aspect-ratio:16/11;border-radius:24px;overflow:hidden;background:var(--plum);cursor:none}
.lens img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.lens .soft{filter:blur(7px) grayscale(.85) brightness(.85);transform:scale(1.06)}
.lens .sharp{-webkit-mask-image:radial-gradient(circle at var(--x,60%) var(--y,45%),#000 0 110px,transparent 112px);
  mask-image:radial-gradient(circle at var(--x,60%) var(--y,45%),#000 0 110px,transparent 112px)}
.lens .ring{position:absolute;left:var(--x,60%);top:var(--y,45%);width:224px;height:224px;margin:-112px 0 0 -112px;
  border-radius:50%;border:3px solid var(--or-hi);box-shadow:0 0 0 6px rgba(255,255,255,.35);pointer-events:none}
.lens .lbl{position:absolute;left:14px;bottom:14px;font:600 11px var(--mono);letter-spacing:.08em;text-transform:uppercase;
  background:#fff;padding:7px 10px;border-radius:8px}
.alist li{border-top:1px solid var(--line)}
.alist li:last-child{border-bottom:1px solid var(--line)}
.alist a{display:grid;grid-template-columns:44px 1fr 24px;gap:12px;align-items:center;padding:15px 4px;text-decoration:none;font-weight:600;font-size:17px}
.alist a .mono{color:var(--or-ink)}
.alist a svg{width:20px;height:20px;stroke:var(--ink);fill:none;stroke-width:2;transition:transform .25s var(--ease)}
.alist a:hover{color:var(--or-ink)}
.alist a:hover svg{transform:translateX(5px)}

/* healthy band: video */
.calm{padding:0 0 96px}
.calm .frame{position:relative;border-radius:28px;overflow:hidden;background:var(--plum);min-height:440px;display:grid;
  grid-template-columns:1fr 1fr;isolation:isolate}
.calm .media{position:relative;min-height:300px}
.calm .media img,.calm .media video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:grayscale(1) contrast(1.1) brightness(1.35)}
.calm .media::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,#FF7A1F,#2E2830 70%);mix-blend-mode:multiply;z-index:2}
.calm .media .lines{position:absolute;inset:0;z-index:3;opacity:.22;background:repeating-linear-gradient(0deg,#000 0 1px,transparent 1px 3px)}
.calm .copy{padding:48px;color:#fff;display:flex;flex-direction:column;justify-content:center}
.calm h2{color:#fff;font-size:clamp(2rem,1.2rem + 2.4vw,3.2rem)}
.calm p{color:#EAE2EC;font-size:17px;margin-top:16px;max-width:44ch}
.calm .links{display:grid;gap:8px;margin-top:10px}
.calm .links a{color:#fff;font-weight:600;text-decoration:underline;text-decoration-color:var(--or-hi);text-underline-offset:4px;text-decoration-thickness:2px}

/* case files */
.cases{display:grid;grid-template-columns:repeat(6,1fr);gap:18px}
.case{grid-column:span 2;position:relative;display:flex;flex-direction:column;text-decoration:none;border:1.5px solid var(--line);
  border-radius:22px;padding:22px;background:#fff;min-height:270px;transition:border-color .2s,transform .3s var(--ease),box-shadow .3s}
.case:hover{border-color:var(--ink);transform:translateY(-4px);box-shadow:0 18px 36px -18px rgba(24,20,26,.35)}
.case.big{grid-column:span 3;background:var(--tint)}
.case .glyph{width:88px;height:88px;margin-bottom:auto}
.case h3{font-size:23px;margin:18px 0 8px}
.case.big h3{font-size:clamp(26px,2.3vw,34px)}
.case p{color:var(--muted);font-size:14.5px;margin:0}
.case .chip{position:absolute;top:20px;right:20px}
.glyph path.e{fill:none;stroke:var(--c,var(--or));stroke-width:1.6;opacity:.75}
.glyph path.n{fill:var(--c,var(--or))}
.glyph circle{fill:var(--ink)}
.case .glyph path.e{stroke-dasharray:300;stroke-dashoffset:300;transition:stroke-dashoffset 1.2s var(--ease)}
.case.in .glyph path.e,.no-js .case .glyph path.e{stroke-dashoffset:0}
.case:hover .glyph path.e{stroke-width:2.4;opacity:1}

/* strains tiles */
.tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.tile{border-radius:20px;padding:20px;background:#fff;border:1.5px solid var(--line);text-decoration:none;display:flex;flex-direction:column;gap:6px;position:relative;overflow:hidden}
.tile::before{content:"";position:absolute;right:-30px;top:-30px;width:110px;height:110px;border-radius:50%;background:var(--c);opacity:.12;transition:transform .5s var(--ease)}
.tile:hover::before{transform:scale(2.6)}
.tile:hover{border-color:var(--ink)}
.tile .mono{color:var(--muted)}
.tile h3{font-size:22px}
.tile b{font:800 40px/1 var(--disp);color:var(--c);letter-spacing:-.03em;filter:brightness(.8)}
.tile ul{font-size:13.5px;color:var(--muted);line-height:1.45;margin-top:6px}
.tile li{margin-top:4px}

/* ---------- inner pages ---------- */
.phead{padding:56px 0 44px;border-bottom:1px solid var(--line)}
.phead .mono{color:var(--or-ink)}
.phead h1{font-size:clamp(2.4rem,1.3rem + 4vw,4.6rem);margin-top:14px;max-width:18ch}
.phead p.lede{font-size:19px;color:var(--plum);max-width:60ch;margin:18px 0 0}
.prose{max-width:70ch;padding:48px 0 72px;font-size:18px}
.prose h3,.prose h2{font-size:26px;margin:34px 0 10px}
.prose a{color:var(--or-ink);font-weight:600;text-underline-offset:3px}
.prose p{margin:0 0 1.1em}

/* post */
.post{display:grid;grid-template-columns:280px minmax(0,1fr);gap:56px;padding:44px 0 40px}
.rail{position:sticky;top:96px;align-self:start}
.spec{border-radius:20px;border:1.5px solid var(--line);padding:18px;background:var(--tint)}
.spec .glyph{width:100%;height:auto;aspect-ratio:1;background:#fff;border-radius:14px;border:1px solid var(--line)}
.spec .mono{display:block;color:var(--muted);margin-top:12px}
.spec .strain{display:flex;align-items:center;gap:8px;font-weight:700;margin-top:6px}
.spec .strain i{width:11px;height:11px;border-radius:50%;background:var(--c)}
.spec small{display:block;color:var(--muted);font-size:12.5px;line-height:1.45;margin-top:10px}
.post article h1{font-size:clamp(2.2rem,1.2rem + 3.4vw,4rem);margin:14px 0 0;max-width:20ch}
.post .kick2{font:600 12px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-top:14px}
.post figure{margin:28px 0 30px}
.post figure .fr{border-radius:20px;overflow:hidden;background:var(--plum);position:relative}
.post figure img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;transition:transform 1.2s var(--ease)}
.post figure .fr:hover img{transform:scale(1.03)}
.post article{min-width:0}
.post figcaption{overflow-wrap:anywhere;font-size:12.5px;color:var(--muted);margin-top:10px;line-height:1.5}
.post figcaption a{color:inherit}
.post .body{font-size:19px;line-height:1.72;max-width:66ch}
.post .body p:first-child::first-letter{font:800 3.4em/0.8 var(--disp);float:left;margin:.08em .1em 0 0;color:var(--or-ink)}
.back{display:inline-flex;margin-top:12px;font-weight:700;color:var(--or-ink);text-underline-offset:3px}
.related{padding:56px 0 24px;border-top:1px solid var(--line)}
.related h2{font-size:30px;margin-bottom:22px}
.rgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.rgrid a{display:flex;gap:14px;align-items:center;text-decoration:none;border:1.5px solid var(--line);border-radius:18px;padding:14px;background:#fff}
.rgrid a:hover{border-color:var(--ink)}
.rgrid .glyph{width:64px;height:64px;flex:0 0 64px}
.rgrid b{font-family:var(--disp);font-size:18px;line-height:1.15;letter-spacing:-.01em}
.pn{display:flex;justify-content:space-between;gap:16px;margin-top:22px;flex-wrap:wrap}
.pn a{font-weight:600;text-decoration:none;max-width:48%}
.pn a span{display:block;font:600 11px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--or-ink)}
.pn a:hover b{text-decoration:underline}

/* share bar (existing markup, restyled) */
.sb{border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:36px 0 0;padding:18px 0;display:flex;align-items:center;gap:10px;flex-wrap:wrap;max-width:66ch}
.sb-t{font:600 11px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-right:4px}
.sb-l{display:flex;gap:7px;flex-wrap:wrap;align-items:center}
.sb a,.sb button{width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;border:1.5px solid var(--line);
  border-radius:50%;background:#fff;color:var(--ink);cursor:pointer;padding:0}
.sb a:hover,.sb button:hover{background:var(--or-hi);border-color:var(--or-hi)}
.sb svg{width:18px;height:18px;fill:currentColor;display:block}
.sb .wide{width:auto;padding:0 15px;border-radius:20px;gap:8px;font:600 13px/1 var(--sans)}
.sb .wide[hidden]{display:none}
.sb-note{font-size:12.5px;color:var(--muted);flex-basis:100%;margin:4px 0 0}
#sb-said{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* library */
.lbar{position:sticky;top:69px;z-index:20;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);padding:16px 0}
.lbar .wrap{display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.search{flex:1 1 280px;position:relative}
.search input{width:100%;border:1.5px solid var(--ink);border-radius:999px;padding:12px 18px 12px 44px;background:#fff;font-size:16px}
.search svg{position:absolute;left:16px;top:50%;width:18px;height:18px;margin-top:-9px;stroke:var(--ink);fill:none;stroke-width:2.2}
.chips{display:flex;gap:6px;flex-wrap:wrap}
.chips button{cursor:pointer}
.chips button[aria-pressed="true"]{background:var(--ink);color:#fff;border-color:var(--ink)}
.chips button[aria-pressed="true"] i{box-shadow:0 0 0 2px #fff}
.count{font:600 12px var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin:22px 0 0}
.lsec{padding:28px 0 8px;scroll-margin-top:150px}
.lsec h2{font-size:30px;display:flex;align-items:center;gap:12px}
.lsec h2 i{width:14px;height:14px;border-radius:50%;background:var(--c)}
.lsec h2 small{font:600 12px var(--mono);color:var(--muted);letter-spacing:.06em}
.lgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px;margin-top:16px}
.lcard{display:flex;gap:12px;align-items:center;text-decoration:none;border:1.5px solid var(--line);border-radius:16px;padding:12px 14px;background:#fff;
  transition:border-color .2s,transform .25s var(--ease)}
.lcard:hover{border-color:var(--ink);transform:translateY(-2px)}
.lcard .glyph{width:46px;height:46px;flex:0 0 46px}
.lcard b{font-weight:600;font-size:15px;line-height:1.3}
.lcard[hidden],.lsec[hidden]{display:none}
.empty{padding:30px 0;font-size:17px}
.credits{margin:40px 0 64px;border:1px solid var(--line);border-radius:16px;padding:16px 20px;font-size:13.5px;color:var(--muted)}
.credits summary{cursor:pointer;font-weight:700;color:var(--ink)}

/* ---------- footer ---------- */
.foot{margin-top:0;border-top:1px solid var(--line);padding:56px 0 30px;background:var(--tint)}
.foot .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}
.foot .flogo{display:inline-block;line-height:0;border-radius:8px}
.foot .flogo img{width:170px;height:auto}
.foot p{color:var(--muted);font-size:14.5px;margin-top:14px;max-width:34ch}
.foot h4{font:600 11px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--or-ink);margin-bottom:12px}
.foot li{margin:0 0 7px}
.foot a{text-decoration:none;font-size:14.5px}
.foot a:hover{text-decoration:underline;color:var(--or-ink)}
.foot .base{border-top:1px solid var(--line);margin-top:36px;padding-top:18px;font-size:13px;color:var(--muted);line-height:1.7}

/* ---------- responsive ---------- */
@media (max-width:1100px){
  .check .grid{grid-template-columns:1fr 1fr}
  .result{grid-column:1/-1;position:relative;top:0}
  .bench{grid-template-columns:1fr}
  .notesx{grid-template-columns:1fr 1fr}
  .notesx .fn:first-child{grid-column:1/-1}
  .tiles{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .nav{display:none}.menu{display:block}
  .hero .wrap{grid-template-columns:1fr;gap:36px}
  .dish{aspect-ratio:4/3}
  .shead{grid-template-columns:1fr;gap:12px}
  .alert .grid{grid-template-columns:1fr}
  .calm .frame{grid-template-columns:1fr}
  .cases{grid-template-columns:1fr 1fr}
  .case,.case.big{grid-column:span 1}
  .post{grid-template-columns:minmax(0,1fr);gap:24px}
  .rail{position:relative;top:0;order:2}
  .spec{display:grid;grid-template-columns:96px 1fr;gap:14px;align-items:center}
  .spec .mono{margin-top:0}
  .rgrid{grid-template-columns:1fr}
  .foot .cols{grid-template-columns:1fr 1fr}
  .readout{grid-template-columns:repeat(2,1fr)}
  .notes{grid-template-columns:1fr}
}
@media (max-width:640px){
  .wrap{padding:0 16px}
  .top .wrap{gap:10px;min-height:62px}
  .brand img{height:34px}
  .launch summary{font-size:0;padding:9px;gap:0}
  .launch summary::before{margin:0}
  .launchpanel{position:fixed;left:16px;right:16px;top:70px;width:auto;max-height:70vh;overflow:auto;columns:2 130px}
  .sec{padding:64px 0}
  .hero{padding:36px 0 56px}
  .hero .facts{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
  .hero .facts div{font-size:10.5px}
  .hero .facts b{font-size:28px}
  .tank .hint{display:none}
  .tank .legend{left:12px;right:auto}
  .check .grid{grid-template-columns:1fr}
  .notesx{grid-template-columns:1fr}
  .fn{min-height:360px}
  .cases{grid-template-columns:1fr}
  .tiles{grid-template-columns:1fr}
  .tank{min-height:380px}
  .calm .copy{padding:28px}
  .foot .cols{grid-template-columns:1fr}
  .lbar{position:relative;top:0}
  .lens{cursor:auto}
  .pn a{max-width:100%}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  [data-rv]{opacity:1;transform:none}
  .trace path,.hero h1 em path,.case .glyph path.e{stroke-dashoffset:0}
  .trace circle{transform:none}
  .strains .run{flex-wrap:wrap;width:auto;padding:16px}
  .strains .dup{display:none}
}
@media print{
  .top,.foot,.sb,.rail,.related,.lbar,video,.vbtn{display:none!important}
  body{font-size:11.5pt}
  .post{display:block}
  .post figure img{max-width:60%}
  a[href^="http"]::after{content:" <" attr(href) ">";font-size:9pt;word-break:break-all}
}