:root{--ink:#0f2233;--paper:#fbfaf7;--accent:#0b6e4f;--accent2:#12507a;--muted:#5b6b7a;--card:#ffffff;--line:#e2ded2;--warn:#fff4d6}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:Helvetica,Arial,sans-serif;background:var(--paper);color:var(--ink);line-height:1.6}
.wrap{max-width:980px;margin:0 auto;padding:0 20px}
header{padding:22px 0 10px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px}
.logo{font-size:23px;font-weight:bold;letter-spacing:.2px}
.logo span{color:var(--accent)}
nav a{margin-left:18px;color:var(--ink);text-decoration:none;font-size:15px}
nav a:hover{color:var(--accent)}
.btn{display:inline-block;background:var(--accent);color:#fff;padding:12px 22px;border-radius:7px;text-decoration:none;font-size:16px;border:0;cursor:pointer}
.btn.secondary{background:var(--accent2)}
.hero{padding:48px 0 26px}
h1{font-size:44px;line-height:1.15;max-width:760px}
h1 em{font-style:normal;color:var(--accent)}
.sub{font-size:20px;color:var(--muted);margin-top:16px;max-width:680px}
.cta{margin-top:26px;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:22px}
form.inline{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
input,select{padding:12px 14px;border:1px solid #c9c2ac;border-radius:6px;font-size:16px;background:#fff}
input[type=email]{flex:1 1 260px}
section{padding:32px 0 6px}
h2{font-size:27px;margin-bottom:12px}
h3{font-size:18px;margin-bottom:8px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:20px}
.card p,p.body{color:#2c3a47;font-size:16.5px}
.small{font-size:14px;color:var(--muted)}
table{width:100%;border-collapse:collapse;background:#fff}
th,td{border:1px solid var(--line);padding:10px 12px;text-align:left;font-size:15.5px;vertical-align:top}
th{background:#f1eee3}
.note{background:var(--warn);border:1px solid #e8d48a;border-radius:8px;padding:14px 16px;font-size:15.5px}
label{display:block;font-size:14.5px;font-weight:bold;margin:14px 0 6px}
.result{background:#eaf4ee;border:1px solid #b9d8c4;border-radius:10px;padding:20px;margin-top:20px;display:none}
code{background:#efe9d8;padding:1px 5px;border-radius:4px;font-size:14.5px}
footer{padding:44px 0 36px;color:var(--muted);font-size:14px}
a{color:var(--accent2)}
ul{margin:8px 0 8px 20px}
li{margin-bottom:6px}
@media(max-width:640px){h1{font-size:34px}nav a{margin-left:12px}}