:root{--bg:#0b1220;--card:#101a33;--text:#e8eefc;--muted:#b7c3e6;--link:#8db4ff;--line:rgba(255,255,255,.12);--accent:#ffd36a;}
@media (prefers-color-scheme: light){
  :root{--bg:#ffffff;--card:#f6f8ff;--text:#111827;--muted:#4b5563;--link:#1d4ed8;--line:rgba(17,24,39,.12);--accent:#b45309;}
}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif;background:var(--bg);color:var(--text);line-height:1.55}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:980px;margin:0 auto;padding:22px}
.nav{display:flex;gap:14px;align-items:center;justify-content:space-between;padding:14px 22px;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--bg);z-index:10}
.brand{font-weight:800;letter-spacing:.2px}
.nav__toggle{display:none;background:transparent;border:1px solid var(--line);color:var(--text);padding:8px 10px;border-radius:10px}
.nav__links{display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.hero{padding:20px 0 10px}
.hero h1{font-size:clamp(1.6rem,3vw,2.3rem);margin:0 0 8px}
.hero p{color:var(--muted);max-width:75ch;margin:0}
.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:14px;margin-top:16px}
.card{grid-column:span 12;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px}
.card h2,.card h3{margin:0 0 8px}
.card p{color:var(--muted);margin:0}
.card ul{margin:10px 0 0;padding-left:18px}
.badges{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.badge{display:inline-block;border:1px solid var(--line);border-radius:999px;padding:6px 10px;color:var(--muted);font-size:.92rem}
.kicker{color:var(--accent);font-weight:700;text-transform:uppercase;letter-spacing:.08em;font-size:.82rem}
.footer{border-top:1px solid var(--line);padding:18px 22px}
.footer__links{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:8px}
.footer__disclosure{margin:0;color:var(--muted)}
.footer__small{margin:8px 0 0;color:var(--muted);font-size:.9rem}
.prose h1{margin-top:0}
.prose h2{margin-top:22px}
.prose p{max-width:78ch}
.prose ul{max-width:78ch}
.prose .note{border-left:3px solid var(--accent);padding:10px 12px;background:rgba(255,255,255,.04);border-radius:12px}
.tool{display:grid;gap:10px;max-width:520px}
label{font-weight:650}
input,textarea,select,button{font:inherit;padding:10px 12px;border-radius:12px;border:1px solid var(--line);background:transparent;color:var(--text)}
button{cursor:pointer}
button:hover{filter:brightness(1.05)}
hr{border:0;border-top:1px solid var(--line)}
.table{width:100%;border-collapse:collapse;margin:12px 0}
.table th,.table td{border:1px solid var(--line);padding:10px;text-align:left;vertical-align:top}
.table th{color:var(--muted)}
@media (max-width:820px){
  .nav__toggle{display:block}
  .nav__links{display:none;flex-direction:column;align-items:flex-start}
  .nav__links.is-open{display:flex}
}