:root{--bg:#060908;--surface:#121c19;--surface-elevated:#182522;--border:#24332f;--accent:#2dd4a7;--accent-dim:#1b7a63;--amber:#e8b36a;--coral:#e8716a;--text:#eaf2ef;--text-dim:#8fa39d;--text-faint:#5a6e68;--radius:16px;--radius-sm:12px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;font-family:Inter,system-ui,sans-serif;line-height:1.6}h1,h2,h3{font-family:Space Grotesk,sans-serif;line-height:1.15}a{color:var(--accent);text-decoration:none}button{cursor:pointer;border:none;font-family:inherit}input,textarea{font-family:inherit}.container{max-width:1100px;margin:0 auto;padding:0 24px}section{padding:80px 0}.label{text-transform:uppercase;letter-spacing:.12em;color:var(--accent);font-family:JetBrains Mono,monospace;font-size:.7rem;font-weight:500}@media (width<=768px){section{padding:56px 0}.container{padding:0 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.3s}.loading-step.active{color:var(--accent)}.loading-step.done{color:var(--accent-dim)}.demo-note{border-radius:var(--radius-sm);color:var(--text-dim);background:#2dd4a70f;border:1px solid #2dd4a726;margin-top:24px;padding:16px 20px;font-size:.8rem;line-height:1.6}.demo-note strong{color:var(--accent)}@media (width<=768px){.demo-wrapper{grid-template-columns:1fr}.demo-form{padding:24px}}.architecture{border-top:1px solid var(--border)}.arch-flow{flex-wrap:wrap;justify-content:center;align-items:center;gap:12px;margin-top:48px;display:flex}.arch-node{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);text-align:center;min-width:160px;padding:24px 28px}.arch-node.active{border-color:var(--accent-dim);background:linear-gradient(135deg, #2dd4a714, var(--surface))}.arch-node-icon{margin-bottom:8px;font-size:1.8rem}.arch-node h3{margin-bottom:4px;font-size:.95rem}.arch-node p{color:var(--text-faint);font-family:JetBrains 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