:root{
  --bg:#f6f7f8;
  --card:#ffffff;
  --accent:#0b6a4a;
  --muted:#6b7280;
  --radius:12px;
  --gap:16px;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  color-scheme: light;
}
*{box-sizing:border-box}
html,body{height:100%;margin:0;background:var(--bg);-webkit-font-smoothing:antialiased}
main.card{max-width:920px;margin:24px auto;padding:20px;background:var(--card);border-radius:var(--radius);box-shadow:0 6px 18px rgba(12,20,30,0.06);display:flex;flex-direction:column;gap:18px}
.card.narrow{max-width:640px}
.logo{height:36px}
.hero h1{margin:0;font-size:20px;color:var(--accent)}
.lead{margin:6px 0 12px;color:var(--muted)}
.features{padding-left:18px;margin:0 0 12px;color:var(--muted)}
.actions{display:flex;gap:10px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 14px;border-radius:10px;text-decoration:none;border:1px solid transparent;font-weight:600;min-height:44px}
.btn.primary{background:var(--accent);color:#fff}
.btn.secondary{background:transparent;color:var(--accent);border-color:rgba(11,106,74,0.12)}
.details h2{margin:0 0 8px}
.footer{display:flex;justify-content:space-between;align-items:center;color:var(--muted);gap:12px;flex-wrap:wrap}
.footer nav a{margin-right:10px;color:var(--muted);text-decoration:none}
.muted{color:var(--muted);font-size:13px}
label{display:block;font-size:14px;margin-bottom:10px;color:#111}
input,textarea{width:100%;padding:10px;border-radius:8px;border:1px solid #e6e9ee;background:#fff;font-size:14px}
@media(max-width:520px){
  main.card{margin:12px;border-radius:12px;padding:14px}
  .hero h1{font-size:18px}
}