:root{--bg:#0f1115;--card:#151821;--text:#e8e8e8;--muted:#9aa0aa;--brand:#de6b00;--line:#242b35}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,Segoe UI,Roboto,Arial}
.wrap{max-width:960px;margin:0 auto;padding:40px 20px}
.hero{margin-bottom:20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px}
.grid{display:grid;gap:16px}
.grid.cols-2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.grid.cols-3{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
h1{margin:6px 0 12px 0;font-size:28px}
h2{margin:0 0 8px 0;font-size:20px}
h3{margin:0 0 6px 0;font-size:18px}
p{margin:0 0 8px 0;line-height:1.5}
.muted{color:var(--muted)}
.center{text-align:center}
.mono{font-family:ui-monospace, SFMono-Regular, Menlo, Consolas, monospace}
a{color:#8ab4ff;text-decoration:none}
a.btn{display:inline-block;margin-top:10px;padding:10px 12px;border-radius:10px;background:var(--brand);color:#fff;font-weight:600}
a.btn.alt{background:#1f6feb}
hr{border:0;border-top:1px solid var(--line);margin:18px 0}
input,button{width:100%;padding:12px 14px;border-radius:10px;border:1px solid #2a2f3a;background:#0f1115;color:var(--text);font-size:16px}
button{background:var(--brand);border:none;font-weight:600;cursor:pointer}
button:disabled{opacity:.6;cursor:not-allowed}
.form{max-width:520px}
.row{margin:8px 0}
@media (max-width:480px){
  .wrap{padding:28px 14px}
  h1{font-size:24px}
}