.arcos-brain-scope{--bg:#0e0d0c;--bg-2:#16140f;--fg:#f4efe7;--fg-dim:#a8a29a;--rule:#f4efe724;--accent:#a855f7;--display:"Anton", Impact, sans-serif;--serif:"Instrument Serif", Georgia, serif;--mono:"JetBrains Mono", ui-monospace, monospace;--body:"Inter", system-ui, sans-serif;background:var(--bg);color:var(--fg);font-family:var(--body);-webkit-font-smoothing:antialiased}.arcos-brain-scope *,.arcos-brain-scope :before,.arcos-brain-scope :after{box-sizing:border-box}.arcos-brain-scope a{color:inherit;text-decoration:none}.arcos-brain-scope img{max-width:100%;display:block}.arcos-brain-scope .wrap{max-width:1440px;margin:0 auto;padding:0 40px}@media (max-width:720px){.arcos-brain-scope .wrap{padding:0 20px}}.arcos-brain-scope .display{font-family:var(--display);letter-spacing:-.01em;text-transform:uppercase;font-weight:400;line-height:.82}.arcos-brain-scope .serif-italic{font-family:var(--serif);text-transform:none;letter-spacing:-.01em;font-style:italic;font-weight:400}.arcos-brain-scope .pg-hero{border-bottom:1px solid var(--rule);padding:56px 64px 64px;position:relative;overflow:hidden}@media (max-width:720px){.arcos-brain-scope .pg-hero{padding:36px 20px 48px}}.arcos-brain-scope .pg-eyebrow{font-family:var(--mono);letter-spacing:.22em;text-transform:uppercase;color:var(--fg-dim);align-items:center;gap:16px;margin-bottom:28px;font-size:11px;display:flex}.arcos-brain-scope .pg-eyebrow:before{content:"";background:var(--accent);width:48px;height:1px}.arcos-brain-scope .pg-eyebrow strong{color:var(--accent);font-weight:400}.arcos-brain-scope .pg-headline{max-width:14ch;margin-bottom:36px;font-size:clamp(48px,7vw,108px);line-height:1.02}.arcos-brain-scope .pg-headline .serif-italic{color:var(--accent);font-size:.85em}.arcos-brain-scope .pg-headline .outline{-webkit-text-stroke:2px var(--fg);color:#0000}.arcos-brain-scope .pg-lede-grid{grid-template-columns:1.25fr 1fr;align-items:end;gap:80px;display:grid}@media (max-width:900px){.arcos-brain-scope .pg-lede-grid{grid-template-columns:1fr;gap:40px}}.arcos-brain-scope .brain-viz{pointer-events:none;opacity:.92;width:340px;height:340px;position:absolute;top:40px;right:120px}@media (max-width:1400px){.arcos-brain-scope .brain-viz{right:80px}}@media (max-width:1100px){.arcos-brain-scope .brain-viz{opacity:.6;width:260px;height:260px;top:30px;right:40px}}@media (max-width:720px){.arcos-brain-scope .brain-viz{display:none}}.arcos-brain-scope .brain-viz svg{width:100%;height:100%;display:block}.arcos-brain-scope .brain-viz .lbl{font-family:var(--mono);letter-spacing:.22em;color:var(--accent);text-transform:uppercase;white-space:nowrap;font-size:9px;position:absolute}.arcos-brain-scope .brain-viz .lbl:before{content:"";background:var(--accent);vertical-align:middle;width:8px;height:1px;margin-right:6px;display:inline-block}.arcos-brain-scope .brain-viz .l1{top:24px;left:-20px}.arcos-brain-scope .brain-viz .l2{top:140px;left:-60px}.arcos-brain-scope .brain-viz .l3{bottom:44px;left:-10px}.arcos-brain-scope .brain-viz .l4{top:60px;right:-12px}.arcos-brain-scope .brain-viz .l5{bottom:80px;right:-8px}@keyframes brainPulse{0%,to{opacity:.35}50%{opacity:1}}.arcos-brain-scope .brain-viz .node{animation:2.4s ease-in-out infinite brainPulse}.arcos-brain-scope .brain-viz .node:nth-child(2n){animation-delay:.6s}.arcos-brain-scope .brain-viz .node:nth-child(3n){animation-delay:1.2s}.arcos-brain-scope .brain-viz .node:nth-child(4n){animation-delay:1.8s}.arcos-brain-scope .pg-lede{font-family:var(--serif);max-width:50ch;font-size:clamp(20px,2vw,28px);line-height:1.35}.arcos-brain-scope .pg-lede em{color:var(--accent);font-style:italic}.arcos-brain-scope .pg-cta-stack{flex-direction:column;gap:14px;display:flex}.arcos-brain-scope .cta-primary{background:var(--accent);color:#000;font-family:var(--display);letter-spacing:.01em;text-transform:uppercase;justify-content:space-between;align-items:center;gap:16px;padding:22px 24px;font-size:28px;transition:transform .15s;display:inline-flex}.arcos-brain-scope .cta-primary:hover{box-shadow:6px 6px 0 var(--fg);transform:translate(-3px,-3px)}.arcos-brain-scope .cta-primary .arrow{font-family:var(--body);font-size:22px;font-weight:700}.arcos-brain-scope .cta-note{font-family:var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--fg-dim);align-items:center;gap:10px;font-size:11px;display:flex}.arcos-brain-scope .cta-note .dot{background:var(--accent);border-radius:50%;width:8px;height:8px;animation:1.4s infinite brainPulseDot}@keyframes brainPulseDot{0%,to{transform:scale(1)}50%{opacity:.6;transform:scale(1.5)}}.arcos-brain-scope .app-mock{background:var(--bg-2);border:1px solid var(--rule);max-width:1200px;margin:64px auto 0;overflow:hidden;box-shadow:0 40px 120px #00000080}.arcos-brain-scope .app-chrome{border-bottom:1px solid var(--rule);font-family:var(--mono);letter-spacing:.14em;color:var(--fg-dim);text-transform:uppercase;background:#000;align-items:center;gap:12px;padding:16px 20px;font-size:11px;display:flex}.arcos-brain-scope .app-chrome .dots{gap:6px;display:flex}.arcos-brain-scope .app-chrome .dots span{background:#333;border-radius:50%;width:10px;height:10px}.arcos-brain-scope .app-chrome .dots span:nth-child(3){background:var(--accent)}.arcos-brain-scope .app-chrome .tab{color:var(--fg);border-left:1px solid var(--rule);margin-left:20px;padding-left:20px}.arcos-brain-scope .app-chrome .meta{margin-left:auto}.arcos-brain-scope .app-body{grid-template-columns:260px 1fr;min-height:440px;display:grid}@media (max-width:800px){.arcos-brain-scope .app-body{grid-template-columns:1fr}}.arcos-brain-scope .app-sidebar{border-right:1px solid var(--rule);background:var(--bg);padding:20px 16px}@media (max-width:800px){.arcos-brain-scope .app-sidebar{display:none}}.arcos-brain-scope .app-sidebar .sb-label{font-family:var(--mono);letter-spacing:.22em;color:var(--fg-dim);text-transform:uppercase;margin:16px 12px 10px;font-size:10px}.arcos-brain-scope .app-sidebar .sb-item{font-family:var(--mono);letter-spacing:.1em;color:var(--fg-dim);text-transform:uppercase;border-radius:2px;align-items:center;gap:10px;padding:8px 12px;font-size:12px;display:flex}.arcos-brain-scope .app-sidebar .sb-item.on{background:var(--bg-2);color:var(--fg);border-left:2px solid var(--accent);padding-left:10px}.arcos-brain-scope .app-sidebar .sb-item .ico{background:var(--rule);border-radius:50%;width:6px;height:6px}.arcos-brain-scope .app-sidebar .sb-item.on .ico{background:var(--accent);box-shadow:0 0 8px var(--accent)}.arcos-brain-scope .app-main{padding:28px 32px}.arcos-brain-scope .app-main .prompt-in{border:1px solid var(--rule);font-family:var(--mono);color:var(--fg-dim);background:#000;margin-bottom:20px;padding:18px 22px;font-size:13px;line-height:1.6}.arcos-brain-scope .app-main .prompt-in .label{color:var(--accent);letter-spacing:.22em;text-transform:uppercase;margin-bottom:6px;font-size:10px;display:block}.arcos-brain-scope .app-main .prompt-in .text{color:var(--fg);font-family:var(--serif);font-size:17px;font-style:italic}.arcos-brain-scope .app-output{grid-template-columns:repeat(2,1fr);gap:16px;display:grid}@media (max-width:600px){.arcos-brain-scope .app-output{grid-template-columns:1fr}}.arcos-brain-scope .out-card{background:var(--bg);border:1px solid var(--rule);padding:18px 20px}.arcos-brain-scope .out-card h5{font-family:var(--mono);letter-spacing:.22em;color:var(--accent);text-transform:uppercase;margin-bottom:10px;font-size:10px}.arcos-brain-scope .out-card p{font-family:var(--serif);color:var(--fg);font-size:16px;line-height:1.4}.arcos-brain-scope .out-card p strong{color:var(--accent);font-style:italic;font-weight:400}.arcos-brain-scope .pg-section{border-bottom:1px solid var(--rule);padding:120px 64px;position:relative}@media (max-width:720px){.arcos-brain-scope .pg-section{padding:64px 20px}}.arcos-brain-scope .pg-section .section-head{font-family:var(--mono);letter-spacing:.22em;text-transform:uppercase;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:20px;margin-bottom:56px;font-size:11px;display:flex}.arcos-brain-scope .pg-section .section-head .num{color:var(--accent)}.arcos-brain-scope .pg-section .section-head .lbl{color:var(--fg-dim)}.arcos-brain-scope .pg-section h2.display{margin-bottom:48px;font-size:clamp(52px,7vw,112px);line-height:.88}.arcos-brain-scope .pg-section h2.display .outline{-webkit-text-stroke:2px var(--fg);color:#0000}.arcos-brain-scope .convos{gap:40px;display:grid}.arcos-brain-scope .convo{border:1px solid var(--rule);grid-template-columns:1fr 1fr;gap:0;display:grid}@media (max-width:800px){.arcos-brain-scope .convo{grid-template-columns:1fr}}.arcos-brain-scope .convo .ask,.arcos-brain-scope .convo .reply{padding:32px}.arcos-brain-scope .convo .ask{background:var(--bg-2);border-right:1px solid var(--rule)}@media (max-width:800px){.arcos-brain-scope .convo .ask{border-right:0;border-bottom:1px solid var(--rule)}}.arcos-brain-scope .convo .tag{font-family:var(--mono);letter-spacing:.22em;text-transform:uppercase;margin-bottom:14px;font-size:10px}.arcos-brain-scope .convo .ask .tag{color:var(--fg-dim)}.arcos-brain-scope .convo .reply .tag{color:var(--accent)}.arcos-brain-scope .convo .ask p{font-family:var(--serif);color:var(--fg);font-size:20px;font-style:italic;line-height:1.35}.arcos-brain-scope .convo .reply p{font-family:var(--body);color:var(--fg);font-size:16px;line-height:1.55}.arcos-brain-scope .convo .reply strong{color:var(--accent);font-weight:500}.arcos-brain-scope .convo .reply .list{font-family:var(--mono);text-transform:uppercase;letter-spacing:.1em;color:var(--fg-dim);margin-top:12px;padding:0;font-size:12px;list-style:none}.arcos-brain-scope .convo .reply .list li{gap:10px;padding:6px 0;display:flex}.arcos-brain-scope .convo .reply .list li:before{content:"▸";color:var(--accent)}.arcos-brain-scope .p-cta{background:var(--fg);color:var(--bg);font-family:var(--display);letter-spacing:.01em;text-transform:uppercase;justify-content:space-between;align-items:center;padding:18px 22px;font-size:20px;transition:background .2s;display:flex}.arcos-brain-scope .p-cta:hover{background:var(--accent);color:#000}.arcos-brain-scope .faq{border-top:1px solid var(--rule)}.arcos-brain-scope .faq-row{border-bottom:1px solid var(--rule);grid-template-columns:80px 1fr;gap:24px;padding:28px 0;display:grid}@media (max-width:600px){.arcos-brain-scope .faq-row{grid-template-columns:1fr;gap:8px}}.arcos-brain-scope .faq-row .idx{font-family:var(--mono);letter-spacing:.22em;color:var(--accent);text-transform:uppercase;font-size:11px}.arcos-brain-scope .faq-row h4{font-family:var(--display);text-transform:uppercase;margin-bottom:14px;font-size:28px;line-height:1}.arcos-brain-scope .faq-row h4 .serif-italic{color:var(--accent)}.arcos-brain-scope .faq-row p{font-family:var(--serif);color:var(--fg-dim);max-width:70ch;font-size:18px;line-height:1.5}.arcos-brain-scope .faq-row p strong{color:var(--fg);font-weight:500}.arcos-brain-scope .cta-band{background:var(--bg-2);border-bottom:1px solid var(--rule);padding:120px 64px;position:relative;overflow:hidden}@media (max-width:720px){.arcos-brain-scope .cta-band{padding:80px 20px}}.arcos-brain-scope .cta-band h2{max-width:16ch;margin-bottom:48px;font-size:clamp(60px,9vw,144px);line-height:.88}.arcos-brain-scope .cta-band h2 .serif-italic{color:var(--accent)}