:root{
  --navy:#1f4e78; --ink:#1a1a1a; --muted:#666; --line:#e2e6ea; --bg:#f7f9fb;
  --accent:#1f6feb; --err:#b00000; --radius:10px;
}
*{box-sizing:border-box}
body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:var(--bg);line-height:1.55}
.topbar{display:flex;justify-content:space-between;align-items:center;padding:14px 24px;background:#fff;border-bottom:1px solid var(--line)}
.brand{font-weight:bold;color:var(--navy);text-decoration:none;font-size:18px}
nav a{margin-left:16px;color:var(--navy);text-decoration:none}
.container{max-width:920px;margin:32px auto;padding:0 20px}
.hero h1{color:var(--navy);font-size:30px;margin-bottom:8px}
.lead{font-size:17px;color:#333;max-width:640px}
.cta{margin-top:20px;display:flex;gap:16px;align-items:center}
.btn{display:inline-block;background:var(--navy);color:#fff;padding:10px 18px;border:none;border-radius:var(--radius);text-decoration:none;cursor:pointer;font-size:15px}
.btn:hover{background:#163a5a}
.btn-link{background:none;border:none;color:var(--navy);cursor:pointer;font-size:15px;padding:0;margin-left:16px}
.card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px;margin:18px 0}
.card.narrow{max-width:420px;margin:32px auto}
.form{display:flex;flex-direction:column;gap:14px;margin-top:12px}
.form label{display:flex;flex-direction:column;gap:6px;font-size:14px;color:#333}
.form input{padding:10px;border:1px solid var(--line);border-radius:8px;font-size:15px}
.muted{color:var(--muted);font-size:14px}
.error{color:var(--err);background:#fdecec;border:1px solid #f5c2c2;padding:8px 12px;border-radius:8px}
.tbl{width:100%;border-collapse:collapse;margin-top:10px}
.tbl th,.tbl td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line);font-size:14px}
.tbl th{background:#eef2f8;color:var(--navy)}
code{background:#eef2f8;padding:1px 6px;border-radius:4px;font-size:13px}
.foot{max-width:920px;margin:24px auto;padding:0 20px;font-size:12px}
.badge{display:inline-block;padding:2px 10px;border-radius:20px;font-size:12px;font-weight:bold}
.badge.ok{background:#e6f4ea;color:#1b7a3d}
.badge.bad{background:#fdecec;color:#b00000}
.badge.warn{background:#fff4e5;color:#9a6700}
.badge.neutral{background:#eef2f8;color:#1f4e78}
h3{color:#1f4e78}