/* ═══════════════ NEO CAD · private preview ═══════════════ */
:root{
  --bg:#0a0a0b; --bg-2:#111113; --surface:#141416; --line:#232327; --line-2:#2f2f34;
  --ink:#f3f1ec; --muted:#9a9aa1; --faint:#5e5e66; --accent:#5b8cff; --accent-2:#8fb0ff;
  --serif:"Inter Tight",system-ui,-apple-system,"Segoe UI",sans-serif; --mono:"IBM Plex Mono",ui-monospace,Menlo,monospace;
  --radius:18px; --max:1320px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg)}
body{margin:0;font-family:var(--serif);color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;overflow-x:hidden;cursor:none}
a{color:inherit;text-decoration:none}
::selection{background:var(--accent);color:#fff}
.mono{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase}
.muted{color:var(--muted)} .faint{color:var(--faint);text-transform:none;letter-spacing:0} .accent{color:var(--accent)} .small{font-size:11px}
.display{font-size:clamp(44px,8.2vw,124px);line-height:.94;letter-spacing:-.045em;font-weight:800;margin:.18em 0 .22em}
.display-2{font-size:clamp(34px,5vw,72px);line-height:1;letter-spacing:-.04em;font-weight:800;margin:.2em 0 .25em}
.display-3{font-size:clamp(30px,3.4vw,44px);line-height:1;letter-spacing:-.035em;font-weight:800}
.lead{font-size:clamp(17px,1.5vw,21px);line-height:1.45;max-width:640px;font-weight:500}
h3{font-size:24px;letter-spacing:-.02em;margin:.5em 0 .35em;font-weight:700}

/* film grain + cursor */
.grain{position:fixed;inset:-50%;pointer-events:none;z-index:50;opacity:.07;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='160' height='160' filter='url(%23n)' opacity='.6'/></svg>");
  animation:grain 1.2s steps(6) infinite}
@keyframes grain{0%{transform:translate(0,0)}20%{transform:translate(-3%,2%)}40%{transform:translate(2%,-3%)}60%{transform:translate(-1%,4%)}80%{transform:translate(3%,1%)}100%{transform:translate(0,0)}}
.cursor{position:fixed;left:0;top:0;width:14px;height:14px;border-radius:50%;background:var(--ink);pointer-events:none;z-index:60;transform:translate(-50%,-50%);mix-blend-mode:difference;transition:width .18s,height .18s,opacity .2s}
.cursor.big{width:44px;height:44px}
.cursor.hide{opacity:0}
@media (hover:none){body{cursor:auto}.cursor{display:none}}

/* buttons, pills, chips */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 22px;border-radius:999px;font-weight:700;font-size:15px;letter-spacing:-.01em;border:1px solid var(--line-2);background:transparent;color:var(--ink);transition:transform .25s cubic-bezier(.2,.8,.2,1),background .2s,border-color .2s;will-change:transform;cursor:none}
.btn-accent{background:var(--accent);border-color:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-2);border-color:var(--accent-2)}
.btn-ghost:hover{border-color:var(--ink)}
.btn.wide{width:100%}
.pill{padding:6px 12px;border:1px solid var(--line-2);border-radius:999px;color:var(--muted)}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.chip{font-family:var(--serif);font-size:13px;font-weight:600;padding:9px 14px;border-radius:999px;border:1px solid var(--line-2);background:transparent;color:var(--muted);cursor:none;transition:all .18s}
.chip:hover{color:var(--ink);border-color:var(--ink)}
.chip.is-on{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.chip .sw{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:8px;vertical-align:-1px;border:1px solid rgba(255,255,255,.25)}

/* gate */
.gate{position:fixed;inset:0;z-index:70;background:radial-gradient(90% 70% at 50% 30%,#1a1a1e 0%,var(--bg) 70%);display:flex;align-items:center;justify-content:center;padding:24px;transition:opacity .6s,visibility .6s}
.gate.off{opacity:0;visibility:hidden}
.gate-card{max-width:560px;width:100%;padding:44px;border:1px solid var(--line);border-radius:28px;background:rgba(20,20,22,.7);backdrop-filter:blur(14px)}
.gate-card h1{font-size:clamp(34px,5vw,56px);letter-spacing:-.04em;line-height:1;margin:.5em 0 .35em}
.gate-card p{line-height:1.5}
.gate-card form{display:flex;gap:10px;margin:22px 0 10px}
.gate-card input{flex:1;background:var(--bg);border:1px solid var(--line-2);border-radius:999px;padding:14px 18px;color:var(--ink);font-family:var(--mono);letter-spacing:.2em;font-size:14px;outline:none}
.gate-card input:focus{border-color:var(--accent)}
.gate-card a{color:var(--ink);border-bottom:1px solid var(--faint)}

/* nav */
.nav{position:fixed;top:0;left:0;right:0;z-index:40;display:flex;align-items:center;gap:18px;padding:18px 28px;background:linear-gradient(180deg,rgba(10,10,11,.85),rgba(10,10,11,0));backdrop-filter:blur(2px)}
.nav.solid{background:rgba(10,10,11,.86);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.wordmark{font-weight:800;letter-spacing:-.04em;font-size:22px}
.wordmark span{color:var(--accent);margin-left:2px}
.links{margin-left:auto;display:flex;gap:26px;font-weight:600;font-size:14px;color:var(--muted)}
.links a:hover{color:var(--ink)}
@media (max-width:860px){.links{display:none}.nav .pill{display:none}.nav .btn{margin-left:auto;padding:11px 16px;font-size:13px}}

/* hero */
.hero{position:relative;min-height:100vh;display:grid;align-items:end;padding:0 0 9vh;overflow:hidden}
.hero-scene{position:absolute;inset:0;z-index:0}
.hero-scene iframe{width:100%;height:100%;border:0;display:block;filter:saturate(1.05) contrast(1.04)}
.hero-shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,10,11,.55) 0%,rgba(10,10,11,.05) 28%,rgba(10,10,11,.25) 55%,rgba(10,10,11,.96) 100%);pointer-events:none}
.hero-scene iframe{filter:none}
.hero-copy{position:relative;z-index:2;padding:0 28px;max-width:var(--max);margin:0 auto;width:100%;pointer-events:none}
.hero-copy .btn,.hero-copy a{pointer-events:auto}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
.scroll-cue{position:absolute;right:28px;bottom:28px;z-index:2;color:var(--muted);writing-mode:vertical-rl;animation:cue 2.2s ease-in-out infinite}
@keyframes cue{0%,100%{transform:translateY(0);opacity:.5}50%{transform:translateY(8px);opacity:1}}

/* strip */
.strip{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.strip-item{background:var(--bg);padding:34px 28px}
.strip .num{font-size:clamp(34px,4vw,56px);font-weight:800;letter-spacing:-.04em;line-height:1;margin-bottom:8px}
.strip .unit{font-size:.5em;color:var(--muted);margin-left:2px}
@media (max-width:860px){.strip{grid-template-columns:repeat(2,1fr)}}

/* sections */
.section{padding:120px 28px;max-width:var(--max);margin:0 auto}
.section-head{max-width:820px;margin-bottom:44px}
.cards3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card,.tier{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:border-color .25s,transform .35s cubic-bezier(.2,.8,.2,1)}
.card:hover,.tier:hover{border-color:var(--line-2);transform:translateY(-4px)}
.card p{line-height:1.5}
.tier ul{list-style:none;padding:0;margin:18px 0 22px;color:var(--muted);line-height:1.7;font-size:15px}
.tier li::before{content:"— ";color:var(--faint)}
.tier .display-3{margin:12px 0 4px}
.tier.featured{border-color:var(--accent);background:linear-gradient(180deg,rgba(91,140,255,.10),var(--surface) 60%)}
@media (max-width:900px){.cards3{grid-template-columns:1fr}}

/* room rail */
.rail-wrap{position:relative}
.rail{display:flex;gap:14px;overflow-x:auto;scroll-snap-type:x mandatory;padding:6px 0 18px;scrollbar-width:none}
.rail::-webkit-scrollbar{display:none}
.rcard{flex:0 0 clamp(260px,26vw,380px);scroll-snap-align:start;border-radius:var(--radius);overflow:hidden;background:var(--surface);border:1px solid var(--line);cursor:none;transition:transform .35s cubic-bezier(.2,.8,.2,1),border-color .25s;text-align:left;padding:0;color:inherit;font:inherit}
.rcard:hover{transform:translateY(-6px);border-color:var(--line-2)}
.rcard .img{aspect-ratio:16/10;background:#1b1b1e center/cover no-repeat;position:relative}
.rcard .img::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,0) 55%,rgba(10,10,11,.75))}
.rcard .idx{position:absolute;left:14px;top:12px;z-index:1;color:rgba(255,255,255,.75)}
.rcard .body{padding:16px 18px 20px}
.rcard h4{margin:0 0 6px;font-size:19px;letter-spacing:-.02em}
.rcard p{margin:0;color:var(--muted);font-size:14px;line-height:1.45}
.rail-nav{position:absolute;right:0;top:-64px;display:flex;gap:8px}
.rbtn{width:44px;height:44px;border-radius:50%;border:1px solid var(--line-2);background:transparent;color:var(--ink);font-size:18px;cursor:none;transition:all .2s}
.rbtn:hover{background:var(--ink);color:var(--bg)}

/* studio */
.studio{max-width:none;padding-left:0;padding-right:0}
.studio .section-head{padding:0 28px;max-width:var(--max);margin-left:auto;margin-right:auto}
.studio-grid{display:grid;grid-template-columns:1fr 380px;min-height:min(86vh,900px);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.scene{position:relative;background:#DDDAD3;min-height:520px;margin:18px;border-radius:22px;overflow:hidden;border:1px solid var(--line-2)}
.scene iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.scene-hud{position:absolute;left:22px;top:18px;display:flex;gap:12px;align-items:center;color:var(--ink);background:rgba(10,10,11,.78);border:1px solid var(--line);padding:9px 14px;border-radius:999px;backdrop-filter:blur(8px);pointer-events:none}
.scene-hint{color:#3a3a3f!important;background:rgba(255,255,255,.55);padding:7px 12px;border-radius:999px;backdrop-filter:blur(6px)}
.sel-card{background:rgba(10,10,11,.86)}
.scene-hud .dot{width:5px;height:5px;border-radius:50%;background:var(--accent)}
.scene-hint{position:absolute;left:22px;bottom:18px;pointer-events:none}
.sel-card{position:absolute;right:22px;bottom:22px;width:min(300px,70%);background:rgba(10,10,11,.72);border:1px solid var(--line-2);border-radius:16px;padding:16px 18px;backdrop-filter:blur(10px);pointer-events:none;animation:selin .35s cubic-bezier(.2,.8,.2,1)}
@keyframes selin{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.sel-part{font-size:22px;font-weight:800;letter-spacing:-.03em;margin:4px 0 2px}
.sel-lam{display:flex;align-items:center;gap:8px;margin:8px 0 6px;font-weight:600;font-size:14px}
.sel-lam .sw{width:14px;height:14px;border-radius:4px;border:1px solid rgba(255,255,255,.25)}
.panel{border-left:1px solid var(--line);background:var(--bg-2);padding:8px 0;overflow-y:auto}
.panel-block{padding:18px 22px;border-bottom:1px solid var(--line)}
.toggles{display:flex;flex-direction:column;gap:6px;margin-top:10px}
.tog{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;border:1px solid var(--line-2);border-radius:12px;background:transparent;color:var(--ink);font:inherit;font-size:14px;font-weight:600;cursor:none;transition:all .18s;text-align:left}
.tog .sub{display:block;color:var(--faint);font-size:12px;font-weight:500;margin-top:2px}
.tog .sw{width:34px;height:20px;border-radius:999px;background:var(--line-2);position:relative;flex:0 0 auto;margin-left:12px;transition:background .2s}
.tog .sw::after{content:"";position:absolute;top:3px;left:3px;width:14px;height:14px;border-radius:50%;background:var(--ink);transition:left .2s}
.tog.is-on .sw{background:var(--accent)} .tog.is-on .sw::after{left:17px}
.tog.off{color:var(--muted)}
.room-dims{font-size:26px;font-weight:800;letter-spacing:-.03em;margin:6px 0 4px}
.brief-row{display:flex;flex-direction:column;gap:4px;margin:10px 0}
.brief .btn{margin-top:10px}
.steps{grid-template-columns:repeat(4,1fr)}
@media (max-width:900px){.steps{grid-template-columns:1fr 1fr}}
#how .btn{margin-top:18px}
.demo-cap{position:absolute;left:50%;top:22px;transform:translateX(-50%);max-width:min(640px,80%);background:rgba(10,10,11,.86);color:var(--ink);border:1px solid var(--line-2);padding:12px 18px;border-radius:14px;backdrop-filter:blur(8px);pointer-events:none;letter-spacing:.08em;text-transform:none;font-size:14px;line-height:1.4;animation:selin .35s cubic-bezier(.2,.8,.2,1)}
.demo-cap b{color:var(--accent)}
.urow{display:flex;flex-direction:column;gap:6px;padding-bottom:6px;border-bottom:1px dashed var(--line)}
.urow:last-child{border-bottom:0}
.restyle{appearance:none;-webkit-appearance:none;background:var(--bg) url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8'><path d='M1 1l5 5 5-5' fill='none' stroke='%239a9aa1' stroke-width='1.6'/></svg>") no-repeat right 12px center;border:1px solid var(--line);border-radius:10px;color:var(--muted);font:inherit;font-size:12px;font-weight:600;padding:8px 32px 8px 12px;cursor:none;outline:none}
.restyle:focus{border-color:var(--accent);color:var(--ink)}
.actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:10px}
.act{padding:11px 12px;border-radius:12px;border:1px solid var(--line-2);background:transparent;color:var(--ink);font:inherit;font-size:13px;font-weight:600;cursor:none;transition:all .18s}
.act:hover{background:var(--ink);color:var(--bg)}
.act.is-on{background:var(--accent);border-color:var(--accent);color:#fff}
.act.ghost{color:var(--muted)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.stat .num{font-size:24px;font-weight:800;letter-spacing:-.03em;line-height:1;margin-bottom:4px}
.price-line{display:flex;align-items:baseline;gap:10px;margin:8px 0 14px}
@media (max-width:980px){.studio-grid{grid-template-columns:1fr}.panel{border-left:0;border-top:1px solid var(--line)}}

/* request */
.req{max-width:720px;display:flex;flex-direction:column;gap:14px}
.req .two{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.req label{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--muted);font-weight:600}
.req input,.req textarea{background:var(--surface);border:1px solid var(--line-2);border-radius:12px;padding:13px 14px;color:var(--ink);font:inherit;font-size:15px;outline:none;cursor:text}
.req input:focus,.req textarea:focus{border-color:var(--accent)}
.req .hp{position:absolute;left:-9999px}
.req .btn{align-self:flex-start;margin-top:6px}
@media (max-width:700px){.req .two{grid-template-columns:1fr}}

/* footer */
.foot{border-top:1px solid var(--line);padding:36px 28px;display:flex;gap:18px;align-items:center;flex-wrap:wrap;justify-content:space-between}
.foot a{color:var(--ink);border-bottom:1px solid var(--faint)}

/* reveal */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .9s cubic-bezier(.2,.8,.2,1),transform .9s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:none}
.reveal:nth-child(2){transition-delay:.08s}.reveal:nth-child(3){transition-delay:.16s}.reveal:nth-child(4){transition-delay:.24s}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.grain{animation:none}.scroll-cue{animation:none}}