:root{
  --bg:#111;--fg:#f5f5f5;--muted:#c7c7c7;--brand:#18c37d;--card:#1c1c1c;--border:#262626;--accent:#ffd23c;--max:1100px
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--fg);font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Helvetica,Arial,sans-serif;line-height:1.6}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:var(--max);margin:auto;padding:24px}
header{display:flex;gap:16px;align-items:center;justify-content:space-between;padding:16px 24px;border-bottom:1px solid var(--border);position:sticky;top:0;background:rgba(17,17,17,.9);backdrop-filter:saturate(1.1) blur(6px);z-index:10}
.brand{display:flex;gap:12px;align-items:center}
.brand img{width:40px;height:40px;border-radius:10px}
.brand h1{font-size:18px;margin:0;font-weight:700}
nav a{opacity:.9;margin-left:14px}
nav a:hover{opacity:1}
main{padding-bottom:32px}
h1,h2,h3{line-height:1.25;margin:0 0 10px}
.lead{font-size:18px;color:var(--muted)}
.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:18px}
.grid{display:grid;gap:24px}
@media(min-width:860px){.grid.cols-2{grid-template-columns:1fr 1fr} .grid.cols-4{grid-template-columns:repeat(4,1fr)}}
.cta{display:inline-block;margin:10px 0;padding:12px 18px;border-radius:999px;background:#25D366;color:#000;font-weight:700}
.cta:hover{filter:brightness(1.05)}
.breadcrumb{font-size:14px;color:var(--muted);margin-bottom:12px}
footer{border-top:1px solid var(--border);color:#aaa;padding:20px;text-align:center}
.thumb{border-radius:12px;overflow:hidden;border:1px solid var(--border)}
ul{margin:0 0 0 18px;padding:0}
.small{font-size:14px;color:var(--muted)}