:root{--bg:#f6f7fb;--card:#fff;--ink:#141824;--muted:#5d6475;--line:#e3e6ee;--brand:#1d1160;--accent:#00788c;--ok:#1b7f3b;--warn:#b35c00;--bad:#b3261e;--chip:#eef1f8}
@media (prefers-color-scheme:dark){:root{--bg:#10131a;--card:#171b24;--ink:#e8eaf0;--muted:#9aa2b4;--line:#2a3040;--brand:#8f86ff;--accent:#39b8cc;--chip:#222838}}
*{box-sizing:border-box}body{margin:0;font:15px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--ink)}
a{color:var(--accent)}header{display:flex;gap:18px;align-items:center;padding:12px 20px;background:var(--brand);color:#fff;flex-wrap:wrap}
header a{color:#fff;text-decoration:none;opacity:.9}header a:hover{opacity:1;text-decoration:underline}header .brand{font-weight:700;margin-right:12px}
header .sp{flex:1}main{max-width:1180px;margin:0 auto;padding:20px 16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:14px 16px;margin:0 0 12px}
.row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}.muted{color:var(--muted)}.small{font-size:13px}
.chip{display:inline-block;background:var(--chip);border-radius:999px;padding:1px 9px;font-size:12px;margin-right:4px}
.chip.fast{background:#ffe7cc;color:#7a3a00}.chip.ok{background:#d9f2e1;color:#14532d}.chip.bad{background:#fbe0de;color:#7f1d1d}
.whyoffer{font-size:16px}.whyoffer b{color:var(--brand)}
table{width:100%;border-collapse:collapse;font-size:14px}th,td{border-bottom:1px solid var(--line);padding:6px 8px;text-align:left;vertical-align:top}
input,select,textarea,button{font:inherit;padding:6px 8px;border:1px solid var(--line);border-radius:6px;background:var(--card);color:var(--ink)}
textarea{width:100%}button,.btn{background:var(--accent);color:#fff;border:0;cursor:pointer;padding:7px 12px;border-radius:6px;text-decoration:none;display:inline-block}
button.secondary,.btn.secondary{background:var(--chip);color:var(--ink)}button.danger{background:var(--bad)}
.flash{background:#fff7d6;color:#5b4500;border:1px solid #f0d97a;padding:8px 12px;border-radius:8px;margin-bottom:12px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}@media(max-width:760px){.grid2{grid-template-columns:1fr}table{display:block;overflow-x:auto}}
h1{font-size:22px;margin:0 0 12px}h2{font-size:17px;margin:0 0 8px}ol.steps{padding-left:18px}pre{white-space:pre-wrap;font:inherit}