:root{
  --bg:#ffffff;
  --text:#0f172a;
  --muted:#475569;
  --line:#e2e8f0;
  --shadow:0 10px 30px rgba(15,23,42,.08);
  --link:#0b5ed7;
}

*{box-sizing:border-box}
body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
}

.container{
  width:min(900px,92vw);
  margin:0 auto;
}

.hero{
  background:#f8fafc;
  border-bottom:1px solid var(--line);
  padding:38px 0 22px;
}

.hero h1{
  margin:0;
  font-size:clamp(26px,3vw,36px);
}

.tagline{
  margin:10px 0 0;
  color:var(--muted);
  font-weight:500;
}

.topnav{
  margin-top:16px;
  display:flex;
  gap:10px;
  flex-wrap:wrap;
}
.topnav a{
  text-decoration:none;
  color:var(--text);
  border:1px solid var(--line);
  padding:8px 12px;
  border-radius:12px;
  background:#fff;
}
.topnav a:hover{
  border-color:#cbd5e1;
  box-shadow: 0 6px 18px rgba(15, 23, 42, .06);
}

main{
  padding:26px 0 50px;
}

.card{
  border:1px solid var(--line);
  border-radius:16px;
  padding:20px;
  margin-top:18px;
  background:#fff;
  box-shadow:var(--shadow);
}

h2{ margin:0 0 10px; }

.muted{ color:var(--muted); }

.info{
  list-style:none;
  padding:0;
  margin:0;
}
.info li{ margin-bottom:8px; }

.phone{
  font-size:18px;
  font-weight:650;
}
.phone a{
  color:var(--text);
  text-decoration:none;
  border-bottom:1px dotted var(--line);
}

details{
  border:1px solid var(--line);
  border-radius:14px;
  padding:12px 14px;
  margin-top:10px;
  background:#fafafa;
}
summary{
  cursor:pointer;
  font-weight:750;
}
.docs{
  margin:10px 0 0 18px;
}
.docs li{ margin:8px 0; }
.docs a{ color:var(--link); }

.hint{
  margin-top:14px;
  color:var(--muted);
  font-size:14px;
}
code{
  background:#f1f5f9;
  border:1px solid var(--line);
  padding:2px 6px;
  border-radius:8px;
}

.footer{
  border-top:1px solid var(--line);
  padding:16px 0;
}
.footer-inner{
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
  align-items:center;
}
.footer a{
  color:var(--muted);
  text-decoration:none;
  border-bottom:1px dotted var(--line);
}