/* Infranatomy landing. Tokens extend the anatomy-kit theme (css/iso.css) so figures and page share one palette. */
:root{
  --bg:#0b0b0b;--card:#131313;--line:#262626;--ink:#e6e6e6;--text:#a3a3a3;--muted:#8a8a8a;
  --accent:#7fb4ff;--accent-ink:#0b0b0b;--radius:10px;
  --ease:cubic-bezier(.22,.61,.36,1);--ease-out:cubic-bezier(.16,1,.3,1);
  --font:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;color-scheme:dark;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 var(--font);-webkit-font-smoothing:antialiased;overflow-x:hidden}
h1,h2,h3{color:var(--ink);font-weight:600;letter-spacing:-.02em;margin:0}
p{margin:0}
a{color:inherit}
.wrap{width:min(1120px,100% - 40px);margin-inline:auto}
.skip{position:absolute;left:-9999px}.skip:focus{left:16px;top:12px;z-index:50;background:var(--ink);color:var(--bg);padding:8px 12px;border-radius:6px}
.muted{color:var(--muted)}

/* nav */
.nav{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:24px;padding:14px max(20px,calc((100% - 1120px)/2));background:rgba(11,11,11,.78);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:border-color .4s var(--ease)}
.nav.scrolled{border-bottom-color:var(--line)}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-weight:600;letter-spacing:-.01em}
.nav nav{display:flex;gap:22px;margin-left:auto}
.nav nav a{color:var(--text);text-decoration:none;font-size:14px;transition:color .25s var(--ease)}
.nav nav a:hover{color:var(--ink)}

/* buttons */
.btn{appearance:none;border:1px solid var(--line);border-radius:999px;padding:12px 22px;font:500 15px/1 var(--font);cursor:pointer;color:var(--ink);background:transparent;transition:transform .25s var(--ease),background-color .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease)}
.btn:hover{transform:translateY(-1px);border-color:#3a3a3a}
.btn:active{transform:translateY(0) scale(.98)}
.btn:focus-visible,.fig-stage:focus-visible,a:focus-visible,input:focus-visible{outline:1px solid var(--accent);outline-offset:4px}
.btn-primary{background:var(--ink);border-color:var(--ink);color:var(--bg)}
.btn-primary:hover{background:#fff;box-shadow:0 6px 24px -10px rgba(127,180,255,.55)}
.btn-ghost:hover{background:#161616}
.btn-sm{padding:8px 14px;font-size:13px}

/* hero */
.hero{position:relative;padding:clamp(72px,12vw,148px) 0 clamp(64px,9vw,112px);overflow:hidden}
.hero-grid{position:absolute;inset:-40% -10% auto;height:180%;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:44px 44px;transform:perspective(900px) rotateX(58deg) translateY(var(--grid-shift,0px));transform-origin:50% 0;opacity:.35;-webkit-mask-image:radial-gradient(60% 50% at 50% 30%,#000 30%,transparent 75%);mask-image:radial-gradient(60% 50% at 50% 30%,#000 30%,transparent 75%);pointer-events:none}
.hero-inner{position:relative;max-width:820px;text-align:center}
.eyebrow,.kicker{font:500 12px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
.eyebrow{display:inline-block;border:1px solid var(--line);border-radius:999px;padding:7px 12px;background:rgba(19,19,19,.8)}
.hero h1{font-size:clamp(36px,6.4vw,68px);line-height:1.04;margin:22px 0 20px}
.lede{font-size:clamp(17px,1.9vw,19px);max-width:640px}
.hero .lede{margin-inline:auto}
.cta-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:32px}
.note{margin-top:18px;font-size:14px;color:var(--muted)}

/* sections */
section{scroll-margin-top:64px}
.problem,.how,.closet-sample,.closets,.dc,.demo,.pricing,.faq{padding:clamp(64px,9vw,120px) 0;border-top:1px solid var(--line)}
.sec-head{max-width:680px;margin-bottom:clamp(36px,5vw,56px)}
.sec-head h2{font-size:clamp(28px,4vw,40px);line-height:1.12;margin:14px 0 14px}
.closets-body{max-width:680px}
.problem .sec-head{margin-bottom:0}
.problem .lede+.lede{margin-top:14px}
.closets-body p{margin:0 0 14px}
.cta-row-start{justify-content:flex-start;margin-top:24px}

/* how-it-works steps */
.step{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(0,1fr);gap:clamp(24px,4vw,56px);align-items:center;margin-bottom:clamp(40px,6vw,72px)}
.step-flip .iso-figure{order:2}
.step .iso-figure{margin:0}
.step-text h3{font-size:clamp(21px,2.4vw,26px);line-height:1.2;margin:10px 0 12px}
.step-n{font:500 12px/1 var(--mono);color:var(--muted);letter-spacing:.1em}
.iso-plate{border-radius:var(--radius);transition:box-shadow .4s var(--ease)}
/* readouts can be long ("check 1/4 · ports · …"): stack the hint above the readout so they never collide */
.iso-plate{padding-bottom:84px}
.iso-plate-corner[data-corner="hint"]{bottom:32px}
.iso-plate-corner[data-corner="readout"]{left:0;text-align:right;white-space:normal;line-height:1.3}
.fig-stage{cursor:pointer;touch-action:pan-y;overflow:hidden}
.fig-stage:hover{box-shadow:0 0 0 1px #3a3a3a,0 20px 60px -30px rgba(0,0,0,.9)}
.iso-legend{margin-top:12px;font-size:13.5px;line-height:1.55}
.fig-pulse{fill:var(--anatomy-lit);opacity:0;transition:opacity .3s var(--ease)}
.fig-pulse.on{opacity:1}
.iso-svg [data-link] .iso-line{transition:stroke .5s var(--ease)}

/* demo video */
.video-frame{position:relative;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--card);aspect-ratio:16/9}
.video-frame video{display:block;width:100%;height:100%;object-fit:cover;background:var(--card)}
.video-frame video:focus-visible{outline:2px solid var(--accent);outline-offset:-3px} /* inset: the frame clips overflow */
.video-pending{position:absolute;right:14px;bottom:14px;font:500 11px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:7px 10px;background:rgba(11,11,11,.8);pointer-events:none}
.video-frame.has-video .video-pending{display:none}

/* pricing */
.tiers{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.tier{display:flex;flex-direction:column;gap:14px;border:1px solid var(--line);border-radius:var(--radius);padding:28px;background:var(--card);transition:transform .35s var(--ease),border-color .35s var(--ease)}
.tier:hover{transform:translateY(-3px);border-color:#3a3a3a}
.tier-mid{border-color:#2f3b4d}
.tier h3{font-size:16px;letter-spacing:0}
.price{font-size:34px;line-height:1.2;font-weight:600;color:var(--ink);letter-spacing:-.02em}
.price-unit{font-size:15px;font-weight:500;color:var(--text);letter-spacing:0}
.price-note{margin:-6px 0 14px;font:500 12px/1.45 var(--mono);color:var(--muted);letter-spacing:.02em}
.tier-desc{font-size:14.5px;min-height:3.2em}
.tier ul{list-style:none;margin:4px 0 8px;padding:0;display:grid;gap:9px;font-size:14.5px}
.tier li{position:relative;padding-left:20px}
.tier li::before{content:"";position:absolute;left:2px;top:.62em;width:8px;height:1px;background:var(--accent)}
.tier .btn{margin-top:auto}

/* footer */
.footer{border-top:1px solid var(--line);padding:40px 0 56px;font-size:14px}
.footer-inner{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.footer-inner p:first-child{max-width:620px}
.footer-links{display:flex;flex-wrap:wrap;gap:8px 18px;align-items:baseline;flex-basis:100%;order:2}
.footer-links a{color:var(--text);text-decoration:none;border-bottom:1px solid var(--line)}
.footer-links a:hover,.footer-links a:focus-visible{color:var(--ink);border-bottom-color:var(--accent)}
.footer-contact{color:var(--muted)}
.footer-inner .muted{order:3}

/* modal */
.modal{border:1px solid var(--line);border-radius:14px;background:var(--card);color:var(--text);padding:0;width:min(440px,100% - 32px);max-height:calc(100% - 32px)}
.modal::backdrop{background:rgba(0,0,0,.6);backdrop-filter:blur(3px)}
.modal[open]{animation:modal-in .35s var(--ease-out)}
.modal[open]::backdrop{animation:fade-in .35s var(--ease-out)}
@keyframes modal-in{from{opacity:0;transform:translateY(12px) scale(.98)}}
@keyframes fade-in{from{opacity:0}}
.modal-body{position:relative;padding:32px 28px 28px}
.modal h2{font-size:22px;margin-bottom:8px}
.modal-x{position:absolute;top:10px;right:12px;width:32px;height:32px;border:0;background:none;color:var(--muted);font-size:22px;cursor:pointer;border-radius:8px}
.modal-x:hover{color:var(--ink);background:#1b1b1b}
#email-form{display:grid;gap:10px;margin-top:20px}
#email-form label{font-size:13px;color:var(--ink)}
#email-form input{font:16px/1.2 var(--font);color:var(--ink);background:#0e0e0e;border:1px solid var(--line);border-radius:8px;padding:12px 14px;transition:border-color .2s var(--ease)}
#email-form input[aria-invalid="true"]{border-color:#c2574f}
.form-error{color:#e0867f;font-size:13px}
.form-consent{font-size:13px;line-height:1.5}
.form-consent a{color:var(--text)}
.thanks-view h2{margin-bottom:10px}
.thanks-view .btn{margin-top:22px}
.thanks-view:not([hidden]){animation:modal-in .4s var(--ease-out)}

/* entrance + scroll motion */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .8s var(--ease-out),transform .8s var(--ease-out)}
.reveal.in{opacity:1;transform:none}
.hero .reveal:nth-child(2){transition-delay:.06s}.hero .reveal:nth-child(3){transition-delay:.12s}.hero .reveal:nth-child(4){transition-delay:.18s}.hero .reveal:nth-child(5){transition-delay:.24s}
.tiers .reveal:nth-child(2){transition-delay:.08s}.tiers .reveal:nth-child(3){transition-delay:.16s}
html:not(.js) .reveal{opacity:1;transform:none}

/* debug panel (?debug=1) */
#debug-panel{position:fixed;right:12px;bottom:12px;z-index:100;width:min(380px,100% - 24px);max-height:42vh;overflow:auto;background:#0e0e0e;border:1px solid #2f3b4d;border-radius:10px;padding:10px 12px;font:11.5px/1.5 var(--mono);color:var(--text);box-shadow:0 20px 50px -20px #000}
#debug-panel b{color:var(--accent);font-weight:500}
#debug-panel .ev{border-top:1px solid var(--line);padding:4px 0;word-break:break-word}

/* placeholders the owner still has to fill ([PRICE], [TIER NAME] ...) */
mark.ph{background:transparent;color:#e8c37a;border:1px dashed #6b5a35;border-radius:4px;padding:0 .3em;font:inherit;font-family:var(--mono);font-size:.82em;letter-spacing:0;white-space:nowrap}
mark.ph mark.ph{border:0;padding:0;font-size:1em}
.price mark.ph{font-size:.6em;vertical-align:.25em}

/* sample renders */
.samples{margin-top:clamp(48px,7vw,88px)}
.samples-h{font-size:18px;color:var(--ink);margin:0 0 6px}
.samples-lede{margin:0 0 22px;font-size:14.5px;max-width:640px}
.samples-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.sample{position:relative;margin:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--card)}
.sample img{display:block;width:100%;height:auto;aspect-ratio:16/10;object-fit:cover}
.sample figcaption{padding:10px 14px;font-size:13.5px;border-top:1px solid var(--line)}
.sample-tag{font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:#e8c37a;border:1px solid #6b5a35;border-radius:4px;padding:1px 6px;margin-right:6px}
.sample-closet{margin-top:0}
.sample-closet .samples-h{font-size:clamp(22px,2.6vw,28px);margin:0 0 8px}
.dc .samples{margin-top:clamp(28px,4vw,48px)}
.closet-units-toggle{margin:14px 0 0;max-width:960px}
.closet-units-toggle summary{cursor:pointer;width:max-content;padding:6px 2px;font:500 13px/1.4 var(--mono);color:var(--muted);letter-spacing:.04em;border-radius:6px}
.closet-units-toggle summary:hover{color:var(--ink)}
.closet-units-toggle summary:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.closet-units{list-style:none;margin:8px 0 0;padding:0;max-width:960px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px 24px;font-size:14px;color:var(--ink)}
.closet-units li{padding:5px 0;border-bottom:1px solid var(--line)}
.sample-wide{max-width:960px}
.closet-readouts{list-style:none;margin:14px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:8px 10px;max-width:960px}
.closet-readouts li{font-family:var(--mono);font-size:12px;color:var(--ink);border:1px solid var(--line);border-radius:4px;padding:4px 8px;background:var(--card)}
.closet-pages{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:18px;max-width:960px}
.closet-pages .concept-banner{top:auto;bottom:0;border-bottom:0;border-top:1px solid #d65a5a;font-size:10px;letter-spacing:.02em;padding:4px 6px}
.closet-pages .page-img{position:relative;display:block}
.concept-banner{position:absolute;left:0;right:0;top:0;padding:8px 14px;background:rgba(122,26,26,.92);color:#fff;font:600 12.5px/1.3 var(--mono);letter-spacing:.06em;text-transform:uppercase;text-align:center;border-bottom:1px solid #d65a5a}

/* FAQ: details/summary accordion; app.js animates the height, CSS alone works without it */
.faq-list{max-width:820px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 2px;color:var(--ink);font-size:17px;font-weight:500;border-radius:6px;transition:color .25s var(--ease)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:#fff}
.faq-item summary:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.faq-chev{flex:none;width:10px;height:10px;border-right:1.5px solid var(--muted);border-bottom:1.5px solid var(--muted);transform:translateY(-3px) rotate(45deg);transition:transform .38s var(--ease-out),border-color .25s var(--ease)}
.faq-item[open] .faq-chev{transform:translateY(2px) rotate(225deg);border-color:var(--ink)}
.faq-a{overflow:hidden}
.faq-a p{margin:0;padding:0 40px 22px 2px;font-size:15.5px;line-height:1.65;max-width:72ch}

@media (max-width:860px){
  .closet-pages{grid-template-columns:1fr 1fr}
  .step{grid-template-columns:1fr}
  .step-flip .iso-figure{order:0}
  .tiers{grid-template-columns:1fr}
  .tier-desc{min-height:0}
}
@media (max-width:560px){
  .nav{gap:12px}
  .nav nav{display:none}
  .nav .btn-sm{margin-left:auto}
  .wrap{width:calc(100% - 32px)}
  .fig-stage .iso-svg{width:114%;margin-left:-7%}
  .tier{padding:22px}
  .samples-grid{grid-template-columns:1fr}
  .closet-pages{grid-template-columns:1fr}
  .closet-units{grid-template-columns:1fr}
  .faq-item summary{font-size:16px;padding:18px 2px}
  .faq-a p{padding-right:8px}
  .concept-banner{font-size:11px;padding:6px 10px}
  .cta-row .btn{flex:1 1 140px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  .hero-grid{transform:perspective(900px) rotateX(58deg)}
  .btn:hover,.tier:hover{transform:none}
}

/* legal drafts and 404 */
.draft-banner{position:sticky;top:0;z-index:30;display:flex;flex-wrap:wrap;gap:4px 14px;justify-content:center;align-items:baseline;padding:12px 20px;background:#7a1414;color:#ffecec;text-align:center;font-size:14px;border-bottom:2px solid #e0867f}
.draft-banner strong{font:700 14px/1.3 var(--mono);letter-spacing:.06em;text-transform:uppercase}
.nav-static{position:relative}
.legal{padding:48px 0 72px}
.prose{max-width:760px}
.prose h1{font-size:clamp(28px,4vw,38px);margin:0 0 18px}
.prose h2{font-size:21px;margin:36px 0 10px}
.prose h3{font-size:17px;margin:24px 0 8px}
.prose p,.prose ul,.prose ol{margin:0 0 14px}
.prose ul,.prose ol{padding-left:22px}
.prose li{margin:4px 0}
.prose strong{color:var(--ink)}
.prose blockquote{margin:0 0 20px;padding:12px 16px;border-left:3px solid #e8c37a;background:var(--card);border-radius:0 var(--radius) var(--radius) 0}
.prose blockquote p:last-child{margin-bottom:0}
.prose mark.ph{white-space:normal}
.table-wrap{overflow-x:auto;margin:0 0 16px}
.prose table{border-collapse:collapse;width:100%;font-size:14px}
.prose th,.prose td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
.prose th{color:var(--ink);background:var(--card)}
.notfound{padding:120px 0 140px;text-align:center}
.notfound h1{font-size:clamp(32px,5vw,48px);margin:14px 0}
.notfound .lede{margin:0 auto 28px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}