:root{--bg:#eaf6ff;--ink:#1d2540;--ink2:#4a5578;--card:#fff;--lip:#cfe2f5;--brand:#7a5cff;--brandlip:#5a3fd6;--sun:#ffc83d;--sunink:#5b4300;--line:#d6e4f2}
@media (prefers-color-scheme:dark){:root{--bg:#141a33;--ink:#eef1ff;--ink2:#aab3d6;--card:#1d2548;--lip:#2b3563;--line:#2b3563;--sunink:#3a2a00}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 "Nunito","Segoe UI",system-ui,-apple-system,Roboto,sans-serif}
.wrap{max-width:880px;margin:0 auto;padding:0 20px}
.top{background:var(--card);border-bottom:3px solid var(--lip)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:60px;flex-wrap:wrap;padding-top:6px;padding-bottom:6px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:900;font-size:20px;text-decoration:none}
.brand img{border-radius:8px}
nav a{color:var(--ink2);text-decoration:none;font-weight:800;margin-left:16px;padding:6px 0;border-bottom:3px solid transparent}
nav a[aria-current=page],nav a:hover{color:var(--brand);border-bottom-color:var(--brand)}
main{padding-top:32px;padding-bottom:48px}
h1{font-size:clamp(28px,5vw,42px);line-height:1.15;margin:.2em 0 .4em;font-weight:900}
h2{font-size:22px;margin:1.8em 0 .4em;font-weight:900}
a{color:var(--brand)}
.hero{text-align:center;padding:24px 0 8px}
.appicon{border-radius:30px;box-shadow:0 6px 0 var(--lip),0 14px 30px rgba(0,0,0,.15)}
.lead{font-size:20px;color:var(--ink2);max-width:36em;margin:0 auto 1.2em}
.cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-block;background:var(--brand);color:#fff;text-decoration:none;font-weight:900;padding:12px 24px;border-radius:16px;box-shadow:0 4px 0 var(--brandlip)}
.btn.ghost{background:var(--card);color:var(--brand);box-shadow:0 4px 0 var(--lip)}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px;margin-top:36px}
.card{background:var(--card);border-radius:20px;padding:6px 20px 14px;box-shadow:0 4px 0 var(--lip)}
.card h2{margin-top:.8em}
.doc{background:var(--card);border-radius:24px;padding:12px 28px 28px;box-shadow:0 4px 0 var(--lip)}
.meta{color:var(--ink2);font-size:15px;margin-top:-.2em}
.tldr{background:rgba(255,200,61,.22);border-left:5px solid var(--sun);padding:12px 16px;border-radius:12px}
details{border:2px solid var(--line);border-radius:14px;padding:4px 16px;margin:10px 0}
summary{cursor:pointer;font-weight:800;padding:8px 0}
footer{border-top:2px solid var(--line);color:var(--ink2);font-size:15px;padding:20px 0 36px;text-align:center}
footer p{margin:.2em 0}
@media (max-width:520px){.doc{padding:8px 18px 22px}nav a{margin-left:12px}}