:root{
  --bg:#f7f5f0; --bg-alt:#efece4; --surface:#fffdf9; --ink:#1c2230; --muted:#4f5868;
  --line:#e2ddd2; --accent:#1f3a5f; --accent-2:#2f6f6a; --accent-soft:#e3ebf3;
  --radius:14px; --shadow:0 1px 2px rgba(28,34,48,.04),0 6px 20px -12px rgba(28,34,48,.18);
  --serif:"Fraunces",Georgia,"Times New Roman",serif;
  --sans:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:120px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 var(--sans);-webkit-font-smoothing:antialiased}
a{color:var(--accent)}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.narrow{max-width:760px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:8px;background:var(--accent);color:#fff;padding:8px 14px;border-radius:8px;z-index:100}
.skip:focus{left:12px}
:focus-visible{outline:3px solid #c27c0e;outline-offset:3px;border-radius:6px}

.topbar{position:sticky;top:0;z-index:20;background:rgba(247,245,240,.88);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.topbar-in{display:flex;justify-content:space-between;align-items:center;height:60px}
.brand{font-family:var(--serif);font-weight:600;font-size:1.15rem;color:var(--ink);text-decoration:none}
nav a{margin-left:22px;color:var(--muted);text-decoration:none;font-weight:500;font-size:.95rem}
nav a:hover{color:var(--accent)}

.hero{padding:88px 0 64px}
.eyebrow,.num{font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent-2);font-weight:600;margin:0 0 12px}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;line-height:1.2;margin:0}
h1{font-size:clamp(2.6rem,6vw,4.2rem);letter-spacing:-.02em}
.role{font-size:1.35rem;color:var(--muted);margin:6px 0 22px;font-family:var(--serif)}
.lede{max-width:640px;font-size:1.125rem;color:var(--ink);margin:0 0 30px}
.ctas{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;padding:12px 22px;border-radius:999px;font-weight:600;text-decoration:none;border:1.5px solid var(--accent);transition:transform .15s,background .15s}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:#16304f;transform:translateY(-1px)}
.btn-ghost{color:var(--accent);background:transparent}
.btn-ghost:hover{background:var(--accent-soft)}
.stats{display:flex;gap:40px;margin:48px 0 0;padding-top:28px;border-top:1px solid var(--line);flex-wrap:wrap}
.stats div{display:flex;flex-direction:column}
.stats dt{font-family:var(--serif);font-size:1.9rem;font-weight:600;color:var(--accent)}
.stats dd{margin:0;color:var(--muted);font-size:.9rem}

.filters-bar{position:sticky;top:60px;z-index:15;background:var(--bg);border-bottom:1px solid var(--line);padding:12px 0}
.filters{display:flex;gap:8px;flex-wrap:wrap}
.chip{font:500 .9rem var(--sans);padding:8px 16px;border-radius:999px;border:1.5px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer;transition:all .15s}
.chip:hover{border-color:var(--accent)}
.chip[aria-pressed="true"]{background:var(--accent);border-color:var(--accent);color:#fff}

.section{padding:72px 0}
.section.alt{background:var(--bg-alt)}
.section[hidden]{display:none}
.sec-head{margin-bottom:32px;max-width:720px}
h2{font-size:clamp(1.8rem,3.5vw,2.4rem);letter-spacing:-.01em;margin-bottom:12px}
.intro{color:var(--muted);margin:0 0 10px;font-size:1.05rem}
.folder{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:.9rem;text-decoration:none}
.folder:hover{text-decoration:underline}

.grid{list-style:none;margin:0;padding:0;display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}
.grid-sm{grid-template-columns:repeat(auto-fill,minmax(230px,1fr))}
.grid>li{display:flex}
.card{flex:1;display:flex;flex-direction:column;gap:8px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px;text-decoration:none;color:var(--ink);box-shadow:var(--shadow);transition:transform .15s,border-color .15s,box-shadow .15s}
.card:hover{transform:translateY(-2px);border-color:var(--accent);box-shadow:0 10px 28px -14px rgba(31,58,95,.35)}
.card h4{font-size:1.08rem;display:flex;gap:6px;align-items:flex-start;justify-content:space-between}
.card p{margin:0;color:var(--muted);font-size:.93rem;flex:1}
.ext{flex:none;margin-top:4px;color:var(--accent);opacity:.7}
.card:hover .ext{opacity:1}
.host,.fmt{font-size:.8rem;color:var(--muted);margin-top:auto}
.card-sm{padding:16px 18px}
.card-sm h4{font-size:1rem}
.card-accent{background:var(--accent-soft);border-color:#c9d6e5}
.kind{font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;font-weight:600;color:var(--accent-2)}
.tags{list-style:none;display:flex;gap:6px;flex-wrap:wrap;margin:4px 0 0;padding:0}
.tag{font-size:.74rem;font-weight:600;padding:3px 9px;border-radius:999px;background:#eef0f3;color:#3a4352}
.tag-getting-started{background:#e2f0ec;color:#1d5a52}
.tag-howto{background:#e3ebf3;color:#1f3a5f}
.tag-api{background:#f5e9d8;color:#7a4a0c}
.tag-reference{background:#ece6f3;color:#4a2f73}
.tag-concept{background:#f1ece3;color:#5b4a2d}

.sub{margin-top:44px}
.sub:first-of-type{margin-top:8px}
.sub-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:8px;margin-bottom:6px}
.sub h3{font-size:1.35rem}
.sub-desc{color:var(--muted);margin:6px 0 16px;font-size:.95rem}

#about p{font-size:1.08rem}
.pills{list-style:none;padding:0;margin:24px 0 0;display:flex;flex-wrap:wrap;gap:8px}
.pills li{border:1px solid var(--line);background:var(--surface);padding:6px 14px;border-radius:999px;font-size:.88rem;color:var(--muted)}

.footer{padding:40px 0 56px;border-top:1px solid var(--line);color:var(--muted);font-size:.92rem}
.footer p{margin:0 0 8px}
.fine{font-size:.82rem;max-width:720px}

@media (max-width:640px){
  .hero{padding:56px 0 40px}
  nav a{margin-left:14px}
  .section{padding:52px 0}
  .stats{gap:24px}
  .filters{flex-wrap:nowrap;overflow-x:auto;padding-bottom:2px;scrollbar-width:none}
  .filters::-webkit-scrollbar{display:none}
  .chip{flex:none}
}