/* GitHub-like light theme */
:root{
  --bg:#f6f8fa;
  --text:#24292e;
  --heading:#000;
  --link:#0969da;
  --accent:#0969da;
  --cta:#ff5a36;
  --card:#ffffff;
  --border:#d0d7de;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:Inter, Segoe UI, Roboto, Arial, sans-serif;color:var(--text);background:var(--bg);line-height:1.6}
.container{max-width:1040px;margin:0 auto;padding:0 16px}
.section{padding:64px 0}
.section.alt{background:#fff}
h1,h2,h3{color:var(--heading);margin:0 0 16px}
h1{font-size:40px;line-height:1.15}
h2{font-size:28px}
h3{font-size:22px}
p.lead{font-size:18px;color:#3b424a}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}
.site-header{position:sticky;top:0;background:#fff;border-bottom:1px solid var(--border);z-index:10}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-weight:700;color:var(--heading)}
.nav a{margin-left:16px}
.hero{padding:80px 0}
.cta-row{margin:20px 0 8px}
.btn{display:inline-block;padding:10px 16px;border-radius:6px;border:1px solid var(--border);text-decoration:none;transition:.15s}
.btn:hover{transform:translateY(-1px)}
.btn.primary{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn.outline{background:#fff;color:var(--text)}
.btn.large{padding:14px 20px;font-size:18px}
.usp{display:flex;flex-wrap:wrap;gap:12px;padding:0;margin:16px 0 0;list-style:none}
.usp li{background:#fff;border:1px solid var(--border);border-radius:20px;padding:6px 12px;font-size:14px}
.cols-2{display:grid;grid-template-columns:1.3fr .7fr;gap:24px}
.card{background:var(--card);border:1px solid var(--border);border-radius:8px;padding:16px}
.card.note h3{margin-top:0}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.bullets{padding-left:18px;margin:0}
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-top:16px}
.step{background:#fff;border:1px solid var(--border);border-radius:8px;padding:12px}
.step .num{display:inline-block;width:24px;height:24px;border-radius:50%;border:1px solid var(--border);text-align:center;line-height:22px;margin-right:8px;font-weight:600}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:12px}
.card.highlight{border-color:var(--cta);box-shadow:0 0 0 3px rgba(255,90,54,.1)}
.note.upsell{margin-top:12px;font-size:14px;color:#4a5158}
.center{text-align:center}
.site-footer{border-top:1px solid var(--border);background:#fff}
.footer-inner{display:flex;align-items:center;justify-content:space-between;padding:20px 0}
@media (max-width:900px){
  .cols-2{grid-template-columns:1fr}
  .grid-2,.steps,.cards{grid-template-columns:1fr}
  .hero h1{font-size:32px}
}