:root{color-scheme:light;--bg:#F8FAFC;--card:#FFFFFF;--tx:#0F172A;--mu:#64748B;--line:#E2E8F0;--line2:#CBD5E1;--p:#2563EB;--ph:#1D4ED8;--pt:#EFF6FF;--bt:#FEF3C7;--lk:#1D4ED8;--on:#FFFFFF;--r:16px;--r2:10px;--sh:0 1px 2px rgba(15,23,42,.04),0 8px 24px -8px rgba(37,99,235,.12)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font:16px/1.6 Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--tx);background:var(--bg);-webkit-font-smoothing:antialiased}
a{color:var(--lk);text-underline-offset:3px}a:hover{color:var(--ph)}.wrap{max-width:1080px;margin:0 auto;padding:0 24px}
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
nav{display:flex;gap:24px;align-items:center;height:64px}.links{display:flex;gap:20px;margin-right:auto}.links a{color:var(--mu);text-decoration:none;font-size:14px;font-weight:500}.links a:hover{color:var(--tx)}
.brand{display:flex;align-items:center;gap:8px;font-weight:700;font-size:17px;color:var(--tx)!important;text-decoration:none}.brand span{color:var(--p)}
@media(max-width:640px){.wrap{padding:0 16px}.links a:nth-child(n+3){display:none}}@media(max-width:420px){.links{display:none}.brand{margin-right:auto}}
.hero{text-align:center;padding:56px 0 24px;background:radial-gradient(closest-side at 20% 40%,var(--pt),transparent),radial-gradient(closest-side at 85% 30%,#F0FDF4,transparent);margin:0 -24px;padding-left:24px;padding-right:24px;border-radius:0 0 28px 28px}
.eyebrow{display:inline-block;margin:0 0 12px;font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--lk);padding:4px 12px;border:1px solid var(--line);border-radius:999px;background:var(--card)}
h1{font-size:clamp(32px,5vw,52px);font-weight:800;letter-spacing:-.035em;line-height:1.1;margin:0 0 14px}
h2{font-size:clamp(22px,3vw,30px);font-weight:700;letter-spacing:-.02em;margin:56px 0 18px}
.lead{font-size:18px;color:var(--mu);max-width:640px;margin:0 auto}.small{font-size:13px;color:var(--mu)}
.banner{background:var(--bt);color:#92400E;border:1px solid #FCD34D;padding:10px 16px;border-radius:var(--r2);margin:16px 0 0;font-size:13px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px;box-shadow:var(--sh)}.glass{box-shadow:var(--sh)}
.tool{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:28px}@media(max-width:780px){.tool{grid-template-columns:1fr;padding:16px}}
.drop{border:1.5px dashed var(--line2);border-radius:var(--r);min-height:220px;display:flex;align-items:center;justify-content:center;text-align:center;cursor:pointer;padding:16px;background:#F8FAFC;transition:border-color .2s,background .2s}
.drop:hover,.drop.over{border-color:var(--p);background:var(--pt)}.drop strong{font-size:15px}.upi{display:flex;width:40px;height:40px;margin:0 auto 12px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:var(--r2);color:var(--p);background:var(--card)}
.brush-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:12px 0}
.brush-row input[type=range]{flex:1;min-width:120px;accent-color:var(--p)}
.btn{display:inline-flex;align-items:center;justify-content:center;background:var(--p);color:var(--on);border:1px solid var(--p);border-radius:999px;padding:12px 24px;font:inherit;font-size:15px;font-weight:600;cursor:pointer;text-decoration:none;transition:background .2s,transform .15s}
.btn:hover{background:var(--ph);transform:translateY(-1px)}.btn:disabled{background:#E2E8F0;border-color:#E2E8F0;color:#94A3B8;transform:none;cursor:not-allowed}
.btn.sec{background:var(--card);color:var(--tx);border-color:var(--line2)}.btn.sec:hover{border-color:var(--p)}.btn.sm{padding:8px 14px;font-size:13px}
.out{min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;border-radius:var(--r);background:var(--bg);border:1px solid var(--line);padding:12px;position:relative}
#stage{max-width:100%;height:auto;border-radius:var(--r2);cursor:crosshair;touch-action:none;background:#0F172A}
.bar{width:100%;height:6px;background:var(--line);border-radius:6px;overflow:hidden}.bar i{display:block;height:100%;width:0;background:var(--p);transition:width .35s}
.badges{list-style:none;padding:0;margin:36px 0 0;display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.badges li{border:1px solid var(--line);border-radius:var(--r);padding:14px;color:var(--mu);font-size:13px;background:var(--card)}
.badges .ic{display:inline-flex;width:28px;height:28px;align-items:center;justify-content:center;border-radius:999px;background:var(--pt);color:var(--p);font-weight:700;margin-bottom:8px}
.badges b{display:block;color:var(--tx);font-size:15px;margin-bottom:2px}
@media(max-width:640px){.badges{grid-template-columns:repeat(2,1fr)}}
ol.cards{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;counter-reset:s}
ol.cards li{counter-increment:s;border:1px solid var(--line);background:var(--card);border-radius:var(--r);padding:20px;color:var(--mu);box-shadow:var(--sh)}
ol.cards li strong{display:block;color:var(--tx);margin-bottom:6px}
ol.cards li:before{content:counter(s);display:flex;width:28px;height:28px;border-radius:999px;align-items:center;justify-content:center;background:var(--pt);color:var(--lk);font-size:13px;font-weight:700;margin-bottom:12px}
details{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:0 20px;margin:8px 0}
summary{cursor:pointer;font-weight:600;font-size:15px;list-style:none;padding:14px 28px 14px 0;position:relative}
summary::-webkit-details-marker{display:none}summary:after{content:"+";position:absolute;right:0;top:10px;font-size:22px;color:var(--p)}
details[open] summary:after{transform:rotate(45deg)}details p{margin:0 0 16px;color:var(--mu)}
.herocta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin:28px 0}
main ul li{margin:4px 0}main>p,main>ul,main>h2,.card>p,.card>ul{max-width:820px}
.cta{margin:72px 0 0;text-align:center;padding:48px 24px;border-radius:var(--r);background:linear-gradient(180deg,var(--pt),#fff);border:1px solid var(--line);box-shadow:var(--sh)}
.cta h2{margin:0 0 8px}.cta p{color:var(--mu);margin:0 0 20px}
footer{border-top:1px solid var(--line);margin-top:72px;padding:40px 0 28px;font-size:13px;color:var(--mu);background:#fff}
.fcols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:28px}
.fcols h2{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--mu);font-weight:600;margin:0 0 12px;line-height:inherit}
.fcols a:not(.brand){display:block;color:var(--tx);text-decoration:none;margin:6px 0}.fcols a:not(.brand):hover{color:var(--p)}
.copy{margin-top:32px;padding-top:16px;border-top:1px solid var(--line)}
@media(max-width:700px){.fcols{grid-template-columns:1fr 1fr}.fcols>div:first-child{grid-column:1/-1}}
.note{background:var(--bt);border:1px solid #FCD34D;border-radius:var(--r2);padding:10px 14px;font-size:13px;color:#92400E}
[hidden]{display:none!important}
:focus-visible{outline:2px solid var(--p);outline-offset:2px}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto}}

.banner.local-ai{background:#ECFDF5;color:#065F46;border-color:#6EE7B7}