:root{--bg:#111214;--panel:#181a1f;--panel2:#20232a;--line:#343a46;--text:#e7e9ee;--muted:#9da6b8;--subtle:#6f788a;--blue:#8db8ff;--max:1240px;--pad:clamp(20px,4vw,52px)}*{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--bg)}body{margin:0;color:var(--text);background:var(--bg);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.55;-webkit-font-smoothing:antialiased}body:before{content:"";position:fixed;inset:0;pointer-events:none;z-index:-3;background:linear-gradient(rgba(141,184,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(141,184,255,.03) 1px,transparent 1px);background-size:48px 48px;mask-image:linear-gradient(to bottom,black,transparent 88%)}a{color:inherit;text-decoration:none}.wrap{width:min(calc(100% - 2*var(--pad)),var(--max));margin:auto}.nav{position:sticky;top:0;z-index:50;border-bottom:1px solid rgba(52,58,70,.85);background:rgba(17,18,20,.88);backdrop-filter:blur(18px)}.nav-inner{height:68px;display:flex;align-items:center;gap:26px}.brand{display:flex;align-items:center;gap:10px;font-weight:780;font-size:18px}.brand img{width:32px;height:32px;object-fit:contain}.brand span span{color:var(--blue)}.nav-label,.section-code,.eyebrow,.lang button{font-family:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace}.nav-label{font-size:10px;color:var(--subtle);letter-spacing:.14em;text-transform:uppercase;padding-left:18px;border-left:1px solid var(--line)}.nav-links{display:flex;gap:22px;margin-left:auto;font-size:13px;color:var(--muted)}.nav-links a:hover{color:var(--text)}.lang{display:flex;border:1px solid var(--line);height:32px}.lang button{border:0;background:transparent;color:var(--subtle);min-width:38px;cursor:pointer;font-size:10px}.lang button.active{background:var(--panel2);color:var(--blue)}.hero{padding:100px 0 84px;border-bottom:1px solid var(--line);overflow:hidden}.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(360px,.95fr);gap:64px;align-items:center}.eyebrow,.section-code{font-size:10px;color:var(--blue);letter-spacing:.17em;text-transform:uppercase}.eyebrow{margin-bottom:24px}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(54px,7vw,98px);line-height:.96;letter-spacing:-.06em;margin-bottom:28px;font-weight:720}h1 span{color:var(--blue)}.hero-lead{font-size:clamp(18px,1.7vw,22px);line-height:1.62;color:var(--muted);max-width:840px}.question-pair{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);margin:34px 0 28px}.question-pair div{padding:18px 20px;background:rgba(24,26,31,.48)}.question-pair div+div{border-left:1px solid var(--line)}.question-pair span{font-size:17px;font-weight:680}.actions{display:flex;gap:10px;flex-wrap:wrap}.btn{min-height:44px;padding:0 18px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);font-size:13px;font-weight:720;transition:.18s}.btn.primary{background:var(--blue);border-color:var(--blue);color:#111214}.btn:hover{transform:translateY(-1px);filter:brightness(1.05)}.hero-visual,.visual-card{border:1px solid var(--line);background:#0b0d10;overflow:hidden}.hero-visual img,.visual-card img{display:block;width:100%;object-fit:cover}.hero-visual img{aspect-ratio:16/10;filter:saturate(.78) contrast(1.04)}.hero-note,.caption{padding:13px 15px;border-top:1px solid var(--line);font-size:11px;color:var(--subtle);font-family:"JetBrains Mono",ui-monospace,monospace;letter-spacing:.06em;text-transform:uppercase}.section{padding:clamp(82px,9vw,126px) 0;border-bottom:1px solid var(--line)}.section-head{display:grid;grid-template-columns:230px minmax(0,1fr);gap:40px;margin-bottom:48px}.section-head h2,.split h2{font-size:clamp(38px,5vw,68px);line-height:1.01;letter-spacing:-.05em;margin-bottom:20px}.section-head p,.split>div>p{color:var(--muted);font-size:17px;max-width:790px}.fragment-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}.fragment-grid article{padding:26px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);min-height:150px;background:rgba(24,26,31,.4)}.fragment-grid strong{font-size:18px}.fragment-grid p{color:var(--muted);margin:8px 0 0}.problem-callout{margin-top:24px;padding:24px 28px;border-left:2px solid var(--blue);background:rgba(141,184,255,.045);font-size:19px;max-width:960px}.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}.split.reverse{grid-template-columns:1fr 1fr}.split.reverse>.visual-card{order:0}.context-list{display:grid;gap:0;margin-top:30px;border-top:1px solid var(--line)}.context-list span{padding:13px 0;border-bottom:1px solid var(--line);color:var(--text);font-size:14px}.visual-card img{aspect-ratio:1/1;filter:saturate(.8) contrast(1.02)}.scenario{display:grid;grid-template-columns:.8fr 1.2fr;border:1px solid var(--line)}.scenario-state{display:grid}.scenario-state span{padding:20px 22px;border-bottom:1px solid var(--line);color:var(--muted)}.scenario-state span:last-child{border-bottom:0}.scenario-question{padding:34px;border-left:1px solid var(--line);background:rgba(141,184,255,.04)}.scenario-question .label{font:10px/1 "JetBrains Mono",ui-monospace,monospace;color:var(--blue);letter-spacing:.16em;margin-bottom:22px}.scenario-question blockquote{font-size:clamp(24px,3vw,38px);line-height:1.2;letter-spacing:-.03em;margin:0 0 20px}.scenario-question p{color:var(--muted)}.loop-steps{display:flex;flex-wrap:wrap;gap:8px;margin-top:30px}.loop-steps span{border:1px solid var(--line);padding:10px 12px;font-size:12px;color:var(--muted);background:rgba(24,26,31,.4)}.question-grid{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}.question-grid article{padding:28px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);min-height:170px}.question-grid h3{font-size:22px;letter-spacing:-.02em;margin-bottom:10px}.question-grid p{color:var(--muted);margin-bottom:0}.simple-rule{margin-top:28px;padding:15px 18px;border:1px solid rgba(141,184,255,.48);color:var(--blue);font:12px/1.5 "JetBrains Mono",ui-monospace,monospace;letter-spacing:.05em;text-transform:uppercase}.small{font-size:13px!important;color:var(--subtle)!important;margin-top:24px!important}.beta{padding:clamp(90px,10vw,144px) 0}.beta-box{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:48px;align-items:end;border:1px solid var(--line);padding:clamp(30px,5vw,62px);background:linear-gradient(135deg,rgba(32,35,42,.66),rgba(24,26,31,.26))}.beta-box h2{font-size:clamp(40px,5.3vw,72px);line-height:.98;letter-spacing:-.055em;margin:10px 0 20px}.beta-box p{color:var(--muted);font-size:17px;max-width:780px}.beta-actions{display:grid;gap:10px;min-width:260px}.footer{border-top:1px solid var(--line);padding:28px 0 38px;color:var(--subtle);font-size:11px}.footer-inner{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.footer-inner>div:last-child{display:flex;gap:18px;flex-wrap:wrap}@media(max-width:980px){.nav-label,.nav-links{display:none}.hero-grid,.section-head,.split,.scenario,.beta-box{grid-template-columns:1fr}.fragment-grid{grid-template-columns:1fr 1fr}.question-grid{grid-template-columns:1fr}.scenario-question{border-left:0;border-top:1px solid var(--line)}.beta-actions{min-width:0}.hero{padding-top:72px}}@media(max-width:620px){.question-pair{grid-template-columns:1fr}.question-pair div+div{border-left:0;border-top:1px solid var(--line)}.fragment-grid{grid-template-columns:1fr}.actions{display:grid}.btn{width:100%}.section{padding:72px 0}.hero{padding-bottom:62px}.hero-visual{margin-top:10px}}
/* hero composition fix — 2026-08-29 */
.hero-grid > *{min-width:0}
.hero-visual{max-width:440px;justify-self:end;background:#0b0d10}
.hero-visual img{width:100%;height:auto;aspect-ratio:1/1;object-fit:contain;display:block;filter:none}
.hero-note{background:rgba(17,18,20,.96)}
@media(max-width:980px){.hero-visual{max-width:560px;justify-self:start;width:100%}}