@font-face{font-family:"Inter";src:url("assets/Inter.woff2") format("woff2");font-weight:100 900;font-display:swap}
:root{--bg:#f1f3f7;--ink:#14285a;--soft:#dde3ec;--muted:#5f6d8a;--text:#2b3550;--w:680px}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-padding-top:96px}
body{font-family:Inter,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.65;font-size:17px;-webkit-font-smoothing:antialiased;overflow-wrap:break-word}
a{color:var(--ink)}
:focus-visible{outline:2px solid var(--ink);outline-offset:3px;border-radius:4px}
.btn:focus-visible{border-radius:999px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip{position:absolute;left:16px;top:-60px;z-index:10;background:var(--ink);color:#fff;padding:10px 16px;border-radius:8px;font-weight:600;font-size:15px;text-decoration:none}
.skip:focus{top:12px}
.wrap{max-width:var(--w);margin:0 auto;padding:0 24px}
/* Pinned top bar: slightly see-through, with a hairline that fades in once you scroll */
header.site{position:sticky;top:0;z-index:5;padding:22px 0;background:var(--bg);background:color-mix(in srgb,var(--bg) 88%,transparent);-webkit-backdrop-filter:saturate(1.4) blur(12px);backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid var(--soft)}
@supports (animation-timeline:scroll()){
 header.site{border-bottom-color:transparent;animation:bar-line linear both;animation-timeline:scroll();animation-range:0 48px}
 @keyframes bar-line{to{border-bottom-color:var(--soft)}}
}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{white-space:nowrap;font-weight:700;color:var(--ink);text-decoration:none;letter-spacing:-.01em}
nav ul{list-style:none;display:flex;flex-wrap:wrap;gap:4px 22px;align-items:center}
nav a{display:inline-block;padding:6px 0;text-decoration:none;color:var(--muted);font-size:15px;font-weight:500;transition:color .15s}
nav a:hover,nav a[aria-current=page]{color:var(--ink)}
main{padding-bottom:72px}
.hero{padding:120px 0 72px;text-align:left;border-top:0}
.flush{border-top:0;padding-top:0}
h1{font-size:64px;line-height:1.1;letter-spacing:-.03em;color:var(--ink);font-weight:750}
.name{font-size:15px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;margin-bottom:12px}
.sub{font-size:21px;color:var(--muted);margin-top:18px;max-width:34em}
section{padding:40px 0;border-top:1px solid var(--soft)}
h2{font-size:13px;font-weight:650;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);margin-bottom:22px}
.items{display:grid;gap:22px}
.item h3{font-size:18px;color:var(--ink);font-weight:650;margin-bottom:4px;letter-spacing:-.01em}
.item p{color:var(--text)}
.proof{background:var(--soft);border-radius:14px;padding:26px 28px;display:flex;align-items:baseline;gap:18px;flex-wrap:wrap}
.proof .big{font-size:40px;font-weight:750;color:var(--ink);letter-spacing:-.03em;line-height:1}
.proof .label{color:var(--ink);font-weight:500}
.btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:4px}
.btns .btn{flex:1 1 0;justify-content:center;max-width:260px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:999px;font-weight:600;font-size:15px;text-decoration:none;transition:transform .15s,background .15s,box-shadow .15s;border:1.5px solid var(--ink)}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:#1d3778;box-shadow:0 6px 18px rgba(20,40,90,.18);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--ink)}
.btn-ghost:hover{background:var(--soft);transform:translateY(-1px)}
.lead{margin-bottom:20px}
.prose p{margin-bottom:18px;font-size:18px}
.prose p:last-child{margin-bottom:0}
.note{color:var(--muted)}

/* Playbooks list */
.posts{list-style:none;display:grid;gap:30px}
.posts a{font-size:18px;font-weight:650;color:var(--ink);text-decoration:none;letter-spacing:-.01em}
.posts a:hover{text-decoration:underline;text-underline-offset:3px}
.posts time{display:block;font-size:14px;color:var(--muted);margin:2px 0 4px;font-variant-numeric:tabular-nums}

/* Single post */
.post-head{padding-bottom:48px}
.post-head h1{font-size:48px}
.post-meta{font-size:14px;color:var(--muted);margin-bottom:16px}
.post-meta a{color:var(--muted);text-decoration:none}
.post-meta a:hover{color:var(--ink)}
.prose a{text-underline-offset:3px}
.prose h2{font-size:24px;line-height:1.3;font-weight:700;text-transform:none;letter-spacing:-.015em;color:var(--ink);margin:44px 0 14px}
.prose h3{font-size:19px;line-height:1.35;font-weight:650;color:var(--ink);margin:32px 0 10px}
.prose ul,.prose ol{font-size:18px;padding-left:1.3em;margin-bottom:18px}
.prose li{margin-bottom:6px}
.prose blockquote{border-left:3px solid var(--soft);padding-left:18px;margin:0 0 18px;color:var(--ink)}
.prose code{font-size:.9em;background:var(--soft);padding:2px 5px;border-radius:4px}
.prose pre{background:var(--soft);padding:16px 18px;border-radius:10px;overflow-x:auto;margin-bottom:18px;font-size:15px}
.prose pre code{background:none;padding:0}
.prose hr{border:0;border-top:1px solid var(--soft);margin:36px 0}
.post-foot{margin-top:56px;padding-top:28px}

footer{border-top:1px solid var(--soft);padding:28px 0 40px;font-size:14px;color:var(--muted)}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
footer a{color:var(--muted);text-decoration:none;margin-left:18px}
footer a:first-child{margin-left:0}
footer a:hover{color:var(--ink)}
@media (max-width:560px){
 header.site .wrap{flex-direction:column;align-items:flex-start;gap:2px}
 header.site .brand{font-size:16px}
 body{font-size:16px}
 .wrap{padding:0 20px}
 header.site{padding:12px 0 6px}
 nav ul{gap:2px 18px}
 nav a{font-size:14px;padding:8px 0}
 .hero{padding:64px 0 44px}
 h1{font-size:44px}
 .post-head h1{font-size:34px}
 .sub{font-size:17px}
 section{padding:36px 0}
 .proof .big{font-size:34px}
 .prose p,.prose ul,.prose ol{font-size:17px}
 .prose h2{font-size:21px}
 .btns{flex-direction:column}
 .btns .btn{max-width:none;width:100%}
 footer .wrap{flex-direction:column}
}
@media (max-width:380px){
 h1{font-size:38px}
 .post-head h1{font-size:30px}
}
@media (prefers-reduced-motion:reduce){
 *{transition:none!important}
 .btn:hover{transform:none!important}
}