:root{--paper:#f4f2ed;--paper2:#ebe8e0;--ink:#16181c;--ink2:#4a4e57;--line:#d4d0c6;--accent:#ff5a1f;--accent2:#ffe3d6;--blue:#1f5fff;--ok:#1a8a52;--card:#fbfaf7}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Space Grotesk",system-ui,sans-serif;background:var(--paper);color:var(--ink);line-height:1.5;-webkit-font-smoothing:antialiased}
.mono{font-family:"JetBrains Mono",ui-monospace,monospace}
a{color:inherit}
.wrap{max-width:1240px;margin:0 auto;padding:0 28px}
.grid-bg{background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:32px 32px;background-position:-1px -1px}
nav{position:sticky;top:0;z-index:50;background:rgba(244,242,237,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
nav .wrap{display:flex;align-items:center;gap:32px;height:60px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:19px;letter-spacing:-.02em;text-decoration:none}
.logo svg{width:26px;height:26px}
nav .links{display:flex;gap:24px;font-size:14px;color:var(--ink2)}
nav .links a{text-decoration:none} nav .links a:hover{color:var(--ink)}
nav .right{margin-left:auto;display:flex;gap:10px;align-items:center}
.pill{font:11px "JetBrains Mono",monospace;padding:4px 9px;border-radius:99px;background:var(--ink);color:#fff;letter-spacing:.04em}
.btn{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--ink);background:var(--ink);color:#fff;font:inherit;font-weight:500;font-size:14px;padding:10px 18px;border-radius:8px;cursor:pointer;text-decoration:none;transition:transform .12s}
.btn:hover{transform:translateY(-1px)}
.btn.ghost{background:transparent;color:var(--ink)}
.btn.accent{background:var(--accent);border-color:var(--accent)}
.btn:disabled{opacity:.5;cursor:default;transform:none}

.hero{border-bottom:1px solid var(--line);padding:56px 0 40px}
.eyebrow{font:12px "JetBrains Mono",monospace;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:14px}
h1{font-size:clamp(36px,5vw,62px);line-height:1.02;letter-spacing:-.035em;font-weight:600;max-width:900px}
h1 em{font-style:normal;color:var(--accent)}
.hero p.lead{font-size:18px;color:var(--ink2);max-width:640px;margin:18px 0 0}
.ticks{display:flex;gap:22px;flex-wrap:wrap;margin-top:22px;font-size:14px;color:var(--ink2)}
.ticks span::before{content:"✓ ";color:var(--ok);font-weight:700}

section{padding:80px 0;border-bottom:1px solid var(--line)}
#generator{padding:36px 0 70px;background:var(--paper2)}
h2{font-size:clamp(28px,3.4vw,42px);letter-spacing:-.03em;line-height:1.05;font-weight:600}
.sec-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:34px;flex-wrap:wrap}
.sec-head p{max-width:440px;color:var(--ink2)}

.gen{display:grid;grid-template-columns:350px 1fr;gap:18px;align-items:start}
.panel{background:var(--card);border:1px solid var(--ink);border-radius:12px;overflow:hidden}
.panel h4{font:500 11px "JetBrains Mono",monospace;letter-spacing:.1em;text-transform:uppercase;color:var(--ink2);padding:12px 16px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between}
.panel .body{padding:16px}
textarea{width:100%;min-height:84px;resize:vertical;border:1px solid var(--line);border-radius:8px;padding:12px;font:14px/1.45 "JetBrains Mono",monospace;background:#fff;color:var(--ink)}
textarea:focus,input:focus,select:focus{outline:2px solid var(--accent);outline-offset:-1px}
.types{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;margin:12px 0}
.type{border:1px solid var(--line);background:#fff;border-radius:8px;padding:6px 2px 5px;cursor:pointer;font:11px "Space Grotesk";color:var(--ink2);display:flex;flex-direction:column;align-items:center;gap:2px}
.type svg{width:30px;height:30px;stroke:var(--ink);fill:none;stroke-width:1.4}
.type:hover{border-color:var(--ink)}
.type.on{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent);color:var(--ink)}
.gen-btn{width:100%;justify-content:center;padding:12px}
.hint{font-size:12px;color:var(--ink2);margin-top:8px}
.params{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.params label{font:11px "JetBrains Mono",monospace;color:var(--ink2);display:flex;flex-direction:column;gap:4px}
.params label.full{grid-column:1/-1}
.params input,.params select{font:13px "JetBrains Mono",monospace;padding:7px 8px;border:1px solid var(--line);border-radius:6px;background:#fff;width:100%;color:var(--ink)}
.params .sep{grid-column:1/-1;border-top:1px dashed var(--line);margin:4px 0 0;padding-top:8px;font:10px "JetBrains Mono";letter-spacing:.1em;color:var(--ink2);text-transform:uppercase}

.viewer{display:flex;flex-direction:column}
.tabs{display:flex;border-bottom:1px solid var(--ink);background:var(--paper)}
.tab{font:500 13px "Space Grotesk";padding:13px 20px;border:0;background:none;cursor:pointer;border-right:1px solid var(--line);color:var(--ink2)}
.tab.active{background:var(--card);color:var(--ink);box-shadow:inset 0 -3px 0 var(--accent)}
.tabs .title{margin-left:auto;padding:0 16px;display:flex;align-items:center;font:12px "JetBrains Mono";color:var(--ink2)}
.view{display:none;position:relative;height:540px}
.view.active{display:block}
#v3d{background:radial-gradient(circle at 50% 40%,#fff,#e7e4dc);cursor:grab;touch-action:none}
#v3d:active{cursor:grabbing}
#v3d canvas{display:block}
.vhud{position:absolute;left:14px;top:12px;font:11px "JetBrains Mono";color:var(--ink2);pointer-events:none}
.vtools{position:absolute;right:12px;top:12px;display:flex;flex-direction:column;gap:6px}
.vtools button{width:36px;height:34px;border:1px solid var(--line);background:#fff;border-radius:7px;cursor:pointer;font:11px "JetBrains Mono"}
.vtools button:hover,.vtools button.on{border-color:var(--ink);background:var(--ink);color:#fff}
.empty{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:var(--ink2);font-size:14px;pointer-events:none}
#vdraw{background:#fff;padding:12px;overflow:auto}
#vdraw svg{width:100%;height:auto;display:block}
.statbar{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);font-size:12px}
.statbar div{padding:10px 16px;border-right:1px solid var(--line)}
.statbar div:last-child{border:0}
.statbar small{display:block;font:10px "JetBrains Mono";color:var(--ink2);text-transform:uppercase;letter-spacing:.08em}
.statbar b{font:500 13px "JetBrains Mono"}
.dlbar{display:grid;grid-template-columns:repeat(6,1fr);gap:8px;padding:14px;border-top:1px solid var(--ink);background:var(--paper)}
.dl{display:flex;flex-direction:column;align-items:flex-start;gap:2px;border:1px solid var(--ink);background:#fff;border-radius:9px;padding:10px 12px;cursor:pointer;text-align:left;font:inherit;transition:transform .12s}
.dl:hover{transform:translateY(-1px);box-shadow:3px 3px 0 var(--ink)}
.dl b{font:600 14px "Space Grotesk";display:flex;gap:6px;align-items:center}
.dl span{font:11px "JetBrains Mono";color:var(--ink2)}
.dl.all{background:var(--accent);border-color:var(--accent);color:#fff}
.dl.all span{color:#ffe3d6}
.dlnote{grid-column:1/-1;font:11px "JetBrains Mono";color:var(--ink2)}

.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px;cursor:pointer;transition:.15s;text-align:left;font:inherit;color:inherit}
.card:hover{border-color:var(--ink);transform:translateY(-2px)}
.card svg{width:54px;height:54px;stroke:var(--ink);fill:none;stroke-width:1.2;margin-bottom:10px}
.card h3{font-size:17px;font-weight:600;letter-spacing:-.01em}
.card p{font-size:13px;color:var(--ink2);margin-top:4px}
.how{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--ink);border-radius:12px;overflow:hidden;background:var(--card)}
.how > div{padding:26px;border-right:1px solid var(--line)}
.how > div:last-child{border:0}
.how .n{font:12px "JetBrains Mono";color:var(--accent)}
.how h3{font-size:21px;letter-spacing:-.02em;margin:8px 0 6px;font-weight:600}
.how p{color:var(--ink2);font-size:15px}
.faq{display:grid;grid-template-columns:1fr 1fr;gap:12px}
details{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px 18px}
details summary{cursor:pointer;font-weight:600;list-style:none;display:flex;justify-content:space-between}
details summary::after{content:"+";font-family:"JetBrains Mono";color:var(--accent)}
details[open] summary::after{content:"−"}
details p{margin-top:10px;color:var(--ink2);font-size:15px}
.cta{background:var(--ink);color:#fff;border-radius:16px;padding:44px;display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap}
.cta h2{color:#fff;max-width:560px}
.cta p{color:#b9bcc3;margin-top:10px;max-width:520px}
footer{padding:48px 0 30px;font-size:14px;color:var(--ink2);border-top:1px solid var(--line)}
footer .foot{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}
footer .foot p{margin-top:10px;max-width:340px}
footer h4{font:500 11px "JetBrains Mono",monospace;letter-spacing:.1em;text-transform:uppercase;margin-bottom:10px;color:var(--ink)}
footer .foot a:not(.logo){display:block;text-decoration:none;padding:3px 0}
footer .foot a:hover{color:var(--ink)}
footer .fine{margin-top:30px;font-size:11px}
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(120px);background:var(--ink);color:#fff;padding:12px 18px;border-radius:8px;font-size:14px;transition:.3s;z-index:99;max-width:90vw}
.toast.show{transform:translateX(-50%) translateY(0)}
@media (max-width:980px){
  .gen,.faq{grid-template-columns:1fr}
  .cards{grid-template-columns:1fr 1fr}
  .how{grid-template-columns:1fr}
  .how > div{border-right:0;border-bottom:1px solid var(--line)}
  nav .links{display:none}
  .dlbar{grid-template-columns:1fr 1fr}
  .statbar{grid-template-columns:1fr 1fr}
  .view{height:420px}
}

a.card{display:block;text-decoration:none}
.ainote{display:none;margin-top:10px;font-size:13px;line-height:1.45;background:var(--accent2);border:1px solid #ffc9b0;border-radius:8px;padding:9px 11px;color:var(--ink)}
.ainote b{font-weight:600}
.twocol{display:grid;grid-template-columns:1fr 1.4fr;gap:40px;align-items:start}
.tips{list-style:none;display:flex;flex-direction:column;gap:10px}
.tips li{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:14px 16px 14px 42px;position:relative;font-size:15px}
.tips li::before{content:"→";position:absolute;left:16px;color:var(--accent);font-weight:700}
.doc{padding:60px 0 80px}
.narrow{max-width:760px}
.doc h1{font-size:clamp(34px,4.5vw,52px);margin-bottom:18px}
.doc h2{font-size:24px;margin:34px 0 10px}
.doc p,.doc li{color:var(--ink2);font-size:16px;margin-bottom:10px}
.doc ul{padding-left:22px}
.doc .lead{font-size:19px;color:var(--ink)}
.muted{color:var(--ink2);font-size:14px}
@media (max-width:980px){footer .foot,.twocol{grid-template-columns:1fr}.dlbar{grid-template-columns:1fr 1fr}}
.toast:empty{display:none}