:root{--ink: #231510;--muted: #7a5a52;--line: #e4cfc8;--paper: #faf7f5;--panel: #f3ede9;--accent: #b45f38;--accent-dark: #834020;--code-bg: #1e1e2e;--code-fg: #cdd6f4}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:72px}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:16px;line-height:1.65;color:var(--ink);background:var(--paper)}a{color:var(--accent-dark)}.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px clamp(18px,4vw,56px);border-bottom:1px solid var(--line);background:#faf7f5f0;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.brand{font-size:15px;font-weight:800;color:var(--ink);text-decoration:none;letter-spacing:-.02em}.brand span{color:var(--accent)}.nav-links{display:flex;gap:24px;list-style:none;margin:0;padding:0}.nav-links a{font-size:13px;font-weight:500;color:var(--muted);text-decoration:none;transition:color .15s}.nav-links a:hover{color:var(--accent-dark)}.shell{min-height:100vh}.page-section{padding:64px clamp(18px,4vw,56px);max-width:1120px;margin:0 auto}.page-section+.page-section{border-top:1px solid var(--line)}.hero{padding:80px clamp(18px,4vw,56px) 64px;max-width:1120px;margin:0 auto}.eyebrow{font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin:0 0 12px}.hero h1{font-size:clamp(28px,4vw,40px);font-weight:800;line-height:1.15;letter-spacing:-.03em;color:var(--ink);margin:0 0 20px;max-width:22ch}.hero-lead{font-size:17px;line-height:1.65;color:var(--muted);max-width:60ch;margin:0}.section-head{margin-bottom:40px}.section-head h2{font-size:clamp(22px,3vw,28px);font-weight:700;letter-spacing:-.025em;margin:0 0 12px}.section-head p{font-size:16px;color:var(--muted);max-width:64ch;margin:0}.usecase-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:24px}.usecase-card{background:#fff;border:1px solid var(--line);border-radius:6px;padding:28px}.usecase-card h3{font-size:19px;font-weight:700;letter-spacing:-.02em;margin:0 0 4px;color:var(--ink)}.usecase-label{font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);display:block;margin-bottom:12px}.usecase-card>p{font-size:14px;color:var(--muted);margin:0 0 20px}.constraint-list{list-style:none;margin:0 0 20px;padding:0;display:flex;flex-direction:column;gap:6px}.constraint-list li{display:flex;align-items:baseline;gap:8px;font-size:13px;color:var(--muted)}.constraint-list li:before{content:"·";color:var(--accent);font-weight:700;flex-shrink:0}.concept-block{background:var(--code-bg);border-radius:4px;padding:12px 14px}.concept-block .cb-label{display:block;font-size:10px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:#fab387;margin-bottom:6px;font-family:JetBrains Mono,Fira Code,ui-monospace,monospace}.concept-tags{display:flex;flex-wrap:wrap;gap:6px}.ctag{font-family:JetBrains Mono,Fira Code,ui-monospace,monospace;font-size:11px;color:var(--code-fg);background:#cdd6f41f;border:1px solid rgba(205,214,244,.2);border-radius:3px;padding:2px 7px}.page-footer{padding:40px clamp(18px,4vw,56px);border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}.footer-brand{font-size:14px;font-weight:700;color:var(--ink)}.footer-meta{font-size:13px;color:var(--muted)}html[data-theme=dark]{filter:invert(.925) hue-rotate(180deg)}html[data-theme=dark] img,html[data-theme=dark] video{filter:invert(1) hue-rotate(180deg)}@media(max-width:600px){.nav-links{display:none}.usecase-grid{grid-template-columns:1fr}}