:root{
  --bg:#fff; --soft:#f5f4f1; --text:#161616; --muted:#6e6c68; --line:#e6e4e0;
  --font:"Instrument Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --pad:clamp(20px,4.4vw,72px);
  --nav:64px;
  --ease:cubic-bezier(.2,.75,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
html.lenis,html.lenis body{height:auto}
.lenis.lenis-smooth{scroll-behavior:auto!important}
body{margin:0;background:var(--bg);color:var(--text);font:400 16px/1.6 var(--font);-webkit-font-smoothing:antialiased;overflow-x:hidden}
main{overflow-x:clip}
img{display:block;max-width:100%}
a{color:inherit}
button{font:inherit;color:inherit;cursor:pointer;background:none;border:0;padding:0}
h1,h2,h3,p,ol,ul{margin:0}
ol,ul{padding:0;list-style:none}
::selection{background:var(--text);color:var(--bg)}
:focus-visible{outline:2px solid var(--text);outline-offset:3px}
.wrap{padding:0 var(--pad);max-width:1440px;margin:0 auto}

.h2{font:500 clamp(30px,3.4vw,48px)/1.08 var(--font);letter-spacing:-.025em}
.sub{margin-top:14px;max-width:520px;font-size:17px;color:var(--muted)}
section{scroll-margin-top:var(--nav)}

/* ---------- nav ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:20;height:var(--nav);display:flex;align-items:center;justify-content:space-between;gap:24px;padding:0 var(--pad);background:rgba(255,255,255,.94);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:border-color .3s}
.nav.is-solid{border-bottom-color:var(--line)}
.brand{text-decoration:none;font:600 18px/1 var(--font);letter-spacing:-.01em}
.nav__links{display:flex;gap:32px}
.nav__links a,.nav__cta{text-decoration:none;font-size:14px;color:var(--muted);transition:color .2s}
.nav__links a:hover{color:var(--text)}
.nav__cta{color:var(--text);font-weight:500;border-bottom:1px solid currentColor;padding-bottom:1px}

/* ---------- hero: the room in a frame ---------- */
.hero{position:relative;height:380vh}
.hero__stage{position:sticky;top:0;height:100vh;height:100svh;display:flex;flex-direction:column;gap:clamp(14px,2.4vh,26px);padding:calc(var(--nav) + clamp(10px,2.4vh,28px)) var(--pad) var(--pad);background:var(--bg)}
.hero__copy{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;flex:none}
.hero__title{font:500 clamp(30px,3.6vw,54px)/1.04 var(--font);letter-spacing:-.03em;max-width:15em}
.hero__lead{max-width:360px;font-size:15px;line-height:1.55;color:var(--muted)}
.hero__frame{position:relative;flex:1;min-height:0;border-radius:6px;overflow:hidden;background:#dedad3}
.hero__gl,.hero__fallback,.hero__fallback img{position:absolute;inset:0;width:100%;height:100%}
.hero__fallback{display:none}
.hero__fallback img{object-fit:cover;object-position:50% 72%;transition:opacity .25s linear}
.hero__fallback img+img{opacity:0}
.no-gl .hero__gl{display:none}
.no-gl .hero__fallback{display:block}

.pick{position:absolute;left:50%;bottom:16px;transform:translate(-50%,12px);opacity:0;pointer-events:none;display:flex;gap:2px;padding:4px;border-radius:8px;background:#fff;box-shadow:0 10px 30px -12px rgba(0,0,0,.35);transition:opacity .5s,transform .6s var(--ease);max-width:calc(100% - 32px)}
.hero.is-done .pick{opacity:1;transform:translate(-50%,0);pointer-events:auto}
.pick button{display:flex;align-items:center;gap:9px;padding:7px 14px 7px 7px;border-radius:5px;font-size:14px;color:var(--muted);white-space:nowrap;transition:background .25s,color .25s}
.pick button img{width:24px;height:24px;border-radius:3px;object-fit:cover}
.pick button:hover{color:var(--text)}
.pick button[aria-pressed="true"]{background:var(--soft);color:var(--text)}

/* ---------- samples ---------- */
.samples{padding:clamp(80px,13vh,140px) 0}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(16px,2vw,32px);padding:0 var(--pad);max-width:1440px;margin:clamp(36px,6vh,60px) auto 0}
.card{display:flex;flex-direction:column}
.card__img{position:relative;aspect-ratio:4/5;overflow:hidden;border-radius:4px;background:var(--soft)}
.card__img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease)}
.card:hover .card__img img{transform:scale(1.04)}
.card h3{margin-top:18px;font:500 19px/1.25 var(--font);letter-spacing:-.01em}
.card p{margin-top:6px;font-size:15px;line-height:1.55;color:var(--muted)}
.card .card__spec{margin-top:10px;font-size:13px;color:var(--text)}
.card__go{margin-top:14px;align-self:flex-start;font-size:14px;font-weight:500;border-bottom:1px solid currentColor;padding-bottom:1px}
.card__go:hover{color:var(--muted)}

/* ---------- laying patterns ---------- */
.lay{padding:clamp(80px,13vh,140px) 0;background:var(--soft)}
.lay .sub{min-height:5.1em}
.lay__grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(30px,5vw,80px);align-items:center}
.tabs{display:flex;flex-wrap:wrap;gap:6px 22px;margin-top:26px}
.tabs button{padding:4px 0;font-size:15px;color:var(--muted);border-bottom:1px solid transparent;transition:color .2s,border-color .2s}
.tabs button:hover{color:var(--text)}
.tabs button[aria-selected="true"]{color:var(--text);border-bottom-color:var(--text)}
.lay__canvas{position:relative;aspect-ratio:4/3;border-radius:4px;overflow:hidden;background:#e9e6e0}
.lay__canvas canvas{position:absolute;inset:0;width:100%;height:100%}

/* ---------- steps ---------- */
.steps{padding:clamp(80px,13vh,140px) 0}
.steps__list{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(18px,2.4vw,40px);margin-top:clamp(36px,6vh,60px);counter-reset:s}
.step{position:relative;padding-top:20px;border-top:1px solid var(--line);counter-increment:s}
.step::before{content:counter(s);display:block;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.step::after{content:"";position:absolute;top:-1px;left:0;height:1px;width:100%;background:var(--text);transform:scaleX(var(--s,0));transform-origin:0 50%}
.step h3{margin-top:28px;font:500 19px/1.25 var(--font)}
.step p{margin-top:8px;font-size:15px;line-height:1.6;color:var(--muted);max-width:300px}

/* ---------- calculator ---------- */
.calc{padding:clamp(80px,13vh,140px) 0;border-top:1px solid var(--line)}
.calc__grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:clamp(30px,5vw,80px);align-items:start}
.field{margin-top:34px}
.field__top{display:flex;justify-content:space-between;align-items:baseline}
.field label,.field__lbl{font-size:14px;color:var(--muted)}
.field output{font:500 22px/1 var(--font);font-variant-numeric:tabular-nums}
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:28px;margin-top:8px;background:transparent;cursor:pointer;--f:20%}
input[type=range]::-webkit-slider-runnable-track{height:2px;background:linear-gradient(90deg,var(--text) var(--f),var(--line) var(--f))}
input[type=range]::-moz-range-track{height:2px;background:var(--line)}
input[type=range]::-moz-range-progress{height:2px;background:var(--text)}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;margin-top:-7px;border-radius:50%;background:var(--text);border:0}
input[type=range]::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:var(--text);border:0}
.seg{display:grid;grid-template-columns:repeat(4,1fr);margin-top:10px;border:1px solid var(--line);border-radius:6px;overflow:hidden}
.seg button{padding:11px 6px;font-size:14px;color:var(--muted);transition:background .2s,color .2s}
.seg button+button{border-left:1px solid var(--line)}
.seg button[aria-checked="true"]{background:var(--text);color:#fff}
.checks{display:grid}
.check{display:flex;align-items:center;gap:12px;padding:13px 0;border-bottom:1px solid var(--line);cursor:pointer;font-size:15px}
.check:first-child{border-top:1px solid var(--line)}
.check input{-webkit-appearance:none;appearance:none;flex:none;width:18px;height:18px;margin:0;border:1px solid #b9b6b0;border-radius:3px;display:grid;place-items:center;cursor:pointer;transition:background .2s,border-color .2s}
.check input:checked{background:var(--text);border-color:var(--text)}
.check input:checked::after{content:"";width:9px;height:5px;border:solid #fff;border-width:0 0 1.6px 1.6px;transform:translateY(-1px) rotate(-45deg)}
.bill{position:sticky;top:calc(var(--nav) + 24px);padding:26px;border:1px solid var(--line);border-radius:6px}
.bill__name{font:500 18px/1.3 var(--font)}
.bill__sub{margin-top:4px;font-size:13px;color:var(--muted)}
.bill__rows{margin-top:18px;display:grid;gap:8px;padding:16px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.bill__rows li{display:flex;justify-content:space-between;gap:12px;font-size:14px;color:var(--muted)}
.bill__rows li b{font-weight:400;color:var(--text);font-variant-numeric:tabular-nums;white-space:nowrap}
.bill__lbl{margin-top:18px;font-size:14px;color:var(--muted)}
.bill__sum{margin-top:4px;font:500 clamp(26px,2.6vw,36px)/1.1 var(--font);letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.bill__note{margin-top:8px;font-size:13px;color:var(--muted)}
.bill__cta{display:block;margin-top:22px;padding:14px 18px;border-radius:6px;background:var(--text);color:#fff;text-align:center;text-decoration:none;font-weight:500;transition:opacity .2s}
.bill__cta:hover{opacity:.85}

/* ---------- ask ---------- */
.ask{padding:clamp(80px,13vh,140px) 0;background:var(--soft)}
.ask__grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(30px,5vw,80px);align-items:start}
.ask__form{display:grid;grid-template-columns:1fr 1fr;gap:22px 24px}
.in{display:grid;gap:4px}
.in span{font-size:14px;color:var(--muted)}
.in input{width:100%;padding:10px 0;border:0;border-bottom:1px solid #cfccc6;border-radius:0;background:transparent;color:var(--text);font:400 16px/1.3 var(--font);transition:border-color .2s}
.in input::placeholder{color:#a9a6a0}
.in input:focus{outline:none;border-bottom-color:var(--text)}
.in--wide{grid-column:1/-1}
.ask__send{grid-column:1/-1;justify-self:start;margin-top:8px;padding:14px 34px;border-radius:6px;background:var(--text);color:#fff;font-weight:500;transition:opacity .2s}
.ask__send:hover{opacity:.85}

/* ---------- footer ---------- */
.foot{display:flex;justify-content:space-between;gap:12px 28px;flex-wrap:wrap;padding:28px var(--pad) 32px;font-size:13px;color:var(--muted);border-top:1px solid var(--line)}
.foot__brand{color:var(--text);font-weight:600}

/* ---------- toast ---------- */
.toast{position:fixed;left:50%;bottom:24px;z-index:60;transform:translate(-50%,16px);opacity:0;pointer-events:none;max-width:min(92vw,460px);padding:13px 18px;border-radius:6px;background:var(--text);color:#fff;font-size:14px;transition:opacity .3s,transform .4s var(--ease)}
.toast.on{opacity:1;transform:translate(-50%,0)}

/* ---------- smaller screens ---------- */
@media (max-width:1100px){
  .cards{grid-template-columns:repeat(2,1fr);row-gap:44px}
  .steps__list{grid-template-columns:repeat(2,1fr);row-gap:40px}
}
@media (max-width:900px){
  .nav__links{display:none}
  .lay__grid,.calc__grid,.ask__grid{grid-template-columns:1fr}
  .bill{position:relative;top:0}
  .hero__copy{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:640px){
  :root{--pad:16px;--nav:56px}
  .hero{height:340vh}
  .hero__stage{padding-bottom:16px;gap:14px}
  .hero__title{font-size:clamp(28px,8vw,34px)}
  .hero__lead{font-size:14.5px}
  .pick{left:10px;right:10px;bottom:10px;transform:translateY(12px);max-width:none;display:grid;grid-template-columns:1fr 1fr}
  .hero.is-done .pick{transform:none}
  .cards{grid-template-columns:1fr}
  .card__img{aspect-ratio:4/3}
  .steps__list{grid-template-columns:1fr;row-gap:32px}
  .step h3{margin-top:12px}
  .seg{grid-template-columns:repeat(2,1fr)}
  .seg button:nth-child(3){border-left:0}
  .seg button:nth-child(n+3){border-top:1px solid var(--line)}
  .ask__form{grid-template-columns:1fr}
  .foot{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms!important;animation-duration:.01ms!important}
}