:root{--ink:#0b3b3c;--muted:#6b7c7d;--bg:#f7f9f9;--card:#ffffff}
*{box-sizing:border-box} body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg)}
header{padding:24px 20px}
h1{margin:0 0 6px 0;font-size:28px} .tag{color:var(--muted)}
main{display:grid;gap:16px;padding:0 20px 40px;grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.card{background:var(--card);border-radius:16px;padding:16px;box-shadow:0 1px 3px rgba(0,0,0,0.06)}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:10px;margin:8px 0}
label{display:flex;flex-direction:column;gap:6px;font-size:14px}
input,select,button{padding:10px;border-radius:10px;border:1px solid #d7e0e0}
button{background:#0b3b3c;color:#fff;border:0;cursor:pointer}
pre{white-space:pre-wrap;background:#f2f6f7;padding:10px;border-radius:12px}
footer{padding:20px;color:var(--muted)}