:root{--paper:#f4efe4;--ink:#102a2c;--muted:#51645f;--rule:#cfc6b2;--accent:#b4472b;--card:#fbf8f1;--field:#fff}
@media (prefers-color-scheme:dark){:root{--paper:#0e1a1b;--ink:#eee8da;--muted:#9fb0aa;--rule:#2b3d3d;--accent:#e58a6c;--card:#142425;--field:#0b1516}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"Source Serif 4",Georgia,"Times New Roman",serif;font-size:18px;line-height:1.6}
.wrap{max-width:860px;margin:0 auto;padding:0 22px}
.mono{font-family:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;font-size:12px;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
a{color:var(--ink);text-decoration-color:var(--accent);text-underline-offset:3px}
a:hover{color:var(--accent)}
.preview{background:var(--accent);color:#fff;text-align:center;padding:6px 10px}
header{border-bottom:3px double var(--rule);padding:20px 0 14px}
.mast{display:flex;justify-content:space-between;align-items:baseline;gap:10px 24px;flex-wrap:wrap}
.brand{font-size:27px;font-weight:700;text-decoration:none;letter-spacing:.005em}
.brand span{color:var(--accent)}
.brand:hover{color:var(--ink)}
header nav,footer nav{display:flex;flex-wrap:wrap;gap:8px 20px}
header nav a,footer nav a{font-family:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;font-size:12px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;text-decoration:none;color:var(--muted)}
header nav a:hover,footer nav a:hover{color:var(--accent)}
header nav a[aria-current="page"]{color:var(--ink);border-bottom:2px solid var(--accent);padding-bottom:4px}
footer nav a[aria-current="page"]{color:var(--accent)}
h1{font-size:clamp(33px,6.6vw,54px);line-height:1.06;letter-spacing:-.015em;margin:0 0 14px;font-weight:700}
.pagehead{padding:44px 0 6px}
.meta{margin:0 0 6px}
.prose{padding-bottom:56px}
.prose>p,.prose>ul,.prose>ol,.prose>h2,.prose>h3,.prose>.callout{max-width:41em}
.prose h2{font-size:27px;line-height:1.2;margin:44px 0 10px}
.prose h3{font-size:21px;line-height:1.25;margin:30px 0 6px}
.prose p{margin:0 0 16px}
.prose ul,.prose ol{margin:0 0 18px;padding-left:22px}
.prose li{margin:0 0 8px}
.lead{font-size:21px;line-height:1.5}
.callout{background:var(--card);border:1px solid var(--rule);border-left:4px solid var(--accent);padding:16px 18px;margin:22px 0;border-radius:2px}
.callout p:last-child{margin-bottom:0}
.tablewrap{overflow-x:auto;margin:20px 0 26px;border:1px solid var(--rule);border-radius:2px;background:var(--card)}
table{border-collapse:collapse;width:100%;min-width:560px;font-size:16px;line-height:1.45}
th{font-family:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;font-size:11.5px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);text-align:left}
th,td{padding:12px 14px;border-bottom:1px solid var(--rule);vertical-align:top}
tr:last-child td{border-bottom:0}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px;margin:20px 0}
.card{display:block;background:var(--card);border:1px solid var(--rule);padding:20px;border-radius:2px;text-decoration:none}
a.card:hover{border-color:var(--accent);color:var(--ink)}
.card h3{font-size:22px;line-height:1.2;margin:6px 0 8px}
.card p{margin:0;font-size:16px;color:var(--muted);line-height:1.5}
.tag{display:inline-block;font-family:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;font-size:10.5px;font-weight:500;letter-spacing:.1em;text-transform:uppercase;border:1px solid var(--rule);padding:2px 7px;border-radius:2px;color:var(--muted);white-space:nowrap}
.tag.a{border-color:var(--accent);color:var(--accent)}
.timeline{list-style:none;padding:0!important;margin:22px 0;max-width:none!important}
.timeline li{display:grid;grid-template-columns:128px 1fr;gap:6px 20px;padding:18px 0;border-top:1px solid var(--rule);margin:0}
.timeline li>.mono{padding-top:5px}
.timeline h3{margin:0 0 6px;font-size:20px}
.timeline p{margin:0 0 6px;font-size:17px}
.timeline .src{font-size:14.5px;color:var(--muted)}
@media (max-width:600px){.timeline li{grid-template-columns:1fr}}
.home .hero{padding:52px 0 40px}
.home h1{font-size:clamp(38px,8.4vw,66px);margin:14px 0 20px}
.home .lede{font-size:clamp(19px,2.7vw,22px);max-width:36em;margin:0 0 28px}
.home section{border-top:1px solid var(--rule);padding:34px 0}
.home section>h2{margin:0 0 6px}
.home .more{font-size:16px}
ul.plain{list-style:none;padding:0;margin:14px 0 0;display:grid;gap:12px;max-width:40em}
ul.plain li{padding-left:22px;position:relative}
ul.plain li:before{content:"";position:absolute;left:0;top:.72em;width:10px;height:2px;background:var(--accent)}
form.js-sub{display:flex;gap:10px;flex-wrap:wrap;max-width:560px}
input[type=email]{flex:1 1 230px;min-width:0;font:inherit;font-size:17px;padding:13px 14px;border:1.5px solid var(--ink);border-radius:2px;background:var(--field);color:var(--ink)}
input[type=email]:focus{outline:3px solid var(--accent);outline-offset:1px}
button{font-family:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;font-size:13px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;padding:15px 20px;border:1.5px solid var(--ink);border-radius:2px;background:var(--ink);color:var(--paper);cursor:pointer}
button:hover{background:var(--accent);border-color:var(--accent);color:#fff}
button[disabled]{opacity:.6;cursor:default}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.msg{font-size:16px;margin:12px 0 0;min-height:1.3em}
.msg.ok{font-weight:700}
.msg.err{color:var(--accent)}
.note{font-size:14px;color:var(--muted);margin:10px 0 0}
.signup{border-top:3px double var(--rule);background:var(--card);padding:34px 0 30px}
.signup h2{margin:0 0 8px}
.signup p{margin:0 0 16px}
.signup .note{margin:10px 0 0}
footer{border-top:1px solid var(--rule);padding:26px 0 46px;font-size:14px;color:var(--muted)}
footer nav{margin:0 0 18px}
footer p{margin:0 0 10px;max-width:60em;line-height:1.55}