:root{--ink:#1d2b3a;--muted:#5a6878;--paper:#fbfaf6;--rule:#dfe6ee;--green:#1f7a52;--green-l:#e6f3ec;--amber:#a86b00;--amber-l:#fbf1dc;--red:#a33a2c;--card:#fff}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
.wrap{max-width:960px;margin:0 auto;padding:0 20px}
a{color:var(--green)}
h1,h2,h3{font-family:Georgia,"Times New Roman",serif;font-weight:700;line-height:1.2}
h1{font-size:2.5rem;margin:.3em 0 .4em}
h2{font-size:1.7rem;margin:2.2em 0 .6em;padding-bottom:.3em;border-bottom:2px solid var(--ink)}
h3{font-size:1.15rem;margin:1.2em 0 .3em}
.hero{background-color:var(--paper);border-bottom:1px solid var(--rule);padding:28px 0 36px;background-image:repeating-linear-gradient(transparent 0 31px,var(--rule) 31px 32px)}
.hero .wrap{background:rgba(251,250,246,.92)}
.eyebrow{font-size:.85rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:0}
.eyebrow a{color:var(--muted);text-decoration:none}
.lede{font-size:1.15rem;max-width:44em}
.tools{font-size:.9rem;color:var(--muted)}
.btn{display:inline-block;background:var(--green);color:#fff;text-decoration:none;padding:12px 20px;border-radius:6px;font-weight:600;margin:4px 8px 4px 0}
.btn.ghost{background:transparent;color:var(--green);border:2px solid var(--green);padding:10px 18px}
.ledger{width:100%;border-collapse:collapse;font:14px/1.4 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:var(--card);border:1px solid var(--rule)}
.ledger th,.ledger td{padding:6px 8px;border-bottom:1px solid var(--rule);text-align:left;vertical-align:top}
.ledger th{background:#eef2f6;font-weight:600}
.ledger td.n{text-align:right;white-space:nowrap}
.tag{display:inline-block;font:600 11px/1.6 -apple-system,Segoe UI,sans-serif;padding:0 7px;border-radius:10px;white-space:nowrap}
.tag.ok{background:var(--green-l);color:var(--green)}
.tag.ask{background:var(--amber-l);color:var(--amber)}
.tag.flag{background:#f7e3e0;color:var(--red)}
.demo{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}
.panel{background:var(--card);border:1px solid var(--rule);border-radius:8px;padding:14px 16px;box-shadow:0 1px 3px rgba(29,43,58,.06)}
.panel h3{margin-top:0;font-size:1rem;font-family:-apple-system,Segoe UI,sans-serif;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.panel ol{padding-left:1.3em;margin:.4em 0}
.panel li{margin:.35em 0}
.panel .opts{color:var(--muted);font-size:.9rem}
.arrow{text-align:center;font-size:.9rem;color:var(--muted);margin:10px 0}
.skills{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.skill{background:var(--card);border:1px solid var(--rule);border-top:4px solid var(--green);border-radius:6px;padding:14px 16px}
.skill h3{margin-top:0;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:1rem}
.skill p{margin:.4em 0;font-size:.95rem}
.steps li{margin:.6em 0}
code,pre{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.88em}
pre{background:#1d2b3a;color:#e9eef3;padding:12px 14px;border-radius:6px;overflow-x:auto}
code{background:#eef2f6;padding:1px 5px;border-radius:4px}
pre code{background:none;padding:0}
.pro{background:var(--card);border:2px solid var(--ink);border-radius:10px;padding:6px 24px 20px;margin-top:2.4em}
.pro h2{border-bottom:none;margin-top:.8em}
.pro ul{padding-left:1.2em}
.pro li{margin:.4em 0}
.price{font-family:Georgia,serif;font-size:1.6rem;font-weight:700}
.small{font-size:.88rem;color:var(--muted)}
.note{background:var(--amber-l);border-left:4px solid var(--amber);padding:10px 14px;border-radius:4px;font-size:.95rem}
details{background:var(--card);border:1px solid var(--rule);border-radius:6px;padding:10px 14px;margin:8px 0}
summary{cursor:pointer;font-weight:600}
footer{margin:3em 0 0;padding:20px 0 40px;border-top:1px solid var(--rule);font-size:.88rem;color:var(--muted)}
@media (max-width:760px){h1{font-size:1.9rem}.demo,.skills{grid-template-columns:1fr}.ledger{font-size:12px}}