:root{--paper:#fafaf9;--ink:#0b0b0c;--grey-1:#55555a;--grey-2:#9a9aa0;--grey-3:#e4e4e1;--grey-4:#f1f1ef;--surface:#fff;--accent:#0b5fff;--accent-dim:#0b5fff1a;--error:#c42b1c;--error-dim:#c42b1c14;--font-display:"Inter Tight", system-ui, sans-serif;--font-body:"Inter", system-ui, sans-serif;--font-mono:"JetBrains Mono", ui-monospace, monospace;--fs-h1:clamp(3rem, 7.2vw, 5.6rem);--fs-h2:clamp(2rem, 4.2vw, 3.1rem);--fs-sub:clamp(1.05rem, 1.6vw, 1.3rem);--fs-body:17px;--fs-caption:.78rem;--fs-eyebrow:.72rem;--s1:8px;--s2:16px;--s3:24px;--s4:40px;--s5:64px;--s6:96px;--s7:160px;--max:1200px;--prose:720px;--radius-card:12px;--radius-panel:14px;--radius-chip:6px;--radius-pill:999px;--t-fast:.18s;--t-med:.28s;--ease:cubic-bezier(.25, .1, .25, 1)}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}:where([id]){scroll-margin-top:88px}body{background:var(--paper);color:var(--ink);font-family:var(--font-body);font-size:var(--fs-body);-webkit-font-smoothing:antialiased;line-height:1.6}a{color:inherit}:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px}::selection{background:var(--accent-dim)}h1,h2,h3{font-family:var(--font-display);letter-spacing:-.03em;font-weight:600;line-height:1.04}h1{font-size:var(--fs-h1);letter-spacing:-.038em}h2{font-size:var(--fs-h2);letter-spacing:-.028em;line-height:1.08}.wrap{max-width:var(--max);padding:0 var(--s3);margin:0 auto}.sub{color:var(--grey-1);font-size:var(--fs-sub);line-height:1.55}.mono{font-family:var(--font-mono);font-size:.82em}.eyebrow{font-family:var(--font-mono);font-size:var(--fs-eyebrow);letter-spacing:.14em;text-transform:uppercase;color:var(--grey-2);font-weight:500}.chip{font-family:var(--font-mono);border-radius:var(--radius-chip);background:var(--accent-dim);color:var(--accent);transition:background var(--t-med) var(--ease);padding:1px 7px;font-size:.85em;font-weight:500;display:inline-block}.chip.pulse{animation:chipflash .7s var(--ease)}@keyframes chipflash{0%{background:var(--accent);color:#fff}to{background:var(--accent-dim);color:var(--accent)}}@keyframes rise{0%{opacity:0;transform:translateY(26px)}to{opacity:1;transform:none}}.pre{opacity:0;transition:opacity .8s var(--ease), transform .8s var(--ease);transform:translateY(22px)}.pre.in{opacity:1;transform:none}@keyframes cellflash{0%{background:var(--accent-dim)}to{background:0 0}}@keyframes deprun{0%{opacity:1;stroke-dashoffset:126px}85%{opacity:1}to{opacity:0;stroke-dashoffset:-40px}}.err{color:var(--error);background:var(--error-dim);border-radius:var(--radius-chip);padding:1px 7px;font-weight:500}.btn{font-family:var(--font-body);border-radius:var(--radius-pill);cursor:pointer;transition:all var(--t-fast) var(--ease);border:1px solid #0000;align-items:center;gap:10px;padding:12px 22px;font-size:.95rem;font-weight:500;text-decoration:none;display:inline-flex}.btn-primary{background:var(--ink);color:var(--paper)}.btn-primary:hover{background:var(--accent)}.btn-ghost{border-color:var(--grey-3);color:var(--ink);background:0 0}.btn-ghost:hover{border-color:var(--ink)}.btn-sm{padding:8px 16px;font-size:.85rem}.btn .arr{transition:transform var(--t-fast) var(--ease);display:inline-block}.btn:hover .arr{transform:translate(3px)}.btn .arr-d{transition:transform var(--t-fast) var(--ease);display:inline-block}.btn:hover .arr-d{transform:translateY(3px)}@media (prefers-reduced-motion:reduce){*,:before,:after{transition:none!important;animation:none!important}html{scroll-behavior:auto}}