:root{--ink:#10243b;--muted:#5a6b7d;--line:#d9e1ea;--bg:#f4f7fa;--card:#fff;--brand:#0d5c63;--brand-ink:#fff;--bad:#a12a2a;--ok:#1d6b3f}
*{box-sizing:border-box}
body{margin:0;font:16px/1.5 system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg)}
.top{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;padding:14px max(16px,env(safe-area-inset-left));background:var(--brand);color:var(--brand-ink)}
.top a,.top .link{color:var(--brand-ink)}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;text-decoration:none;font-size:1.1rem}
.mark{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:8px;background:#fff;color:var(--brand)}
nav{display:flex;gap:16px;align-items:center}
nav form{margin:0}
main{max-width:960px;margin:0 auto;padding:24px 16px 48px;display:grid;gap:16px}
footer{max-width:960px;margin:0 auto;padding:0 16px 32px;color:var(--muted);font-size:.85rem}
h1{margin:0;font-size:1.6rem}
h2{margin:0 0 8px;font-size:1.1rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px}
.narrow{max-width:420px;margin:40px auto;width:100%}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(min(300px,100%),1fr))}
.stack{display:grid;gap:8px}
label{font-weight:600;font-size:.9rem}
input,select,textarea{font:inherit;padding:10px;border:1px solid var(--line);border-radius:8px;width:100%}
button,.button{font:inherit;font-weight:600;padding:10px 16px;border-radius:8px;border:0;background:var(--brand);color:var(--brand-ink);cursor:pointer;text-decoration:none;display:inline-block;min-height:44px}
.link{background:none;padding:0;min-height:0;font-weight:400;text-decoration:underline}
.balance{font-size:2rem;font-weight:700;margin:0;font-variant-numeric:tabular-nums}
.muted{color:var(--muted);font-weight:400}
.error{color:var(--bad)}
.notice{padding:12px 16px;border-radius:8px;background:#e6f4ec;color:var(--ok);margin:0}
.notice.bad{background:#fbeaea;color:var(--bad)}
.approval{border-color:var(--brand);border-width:2px}
.rows{list-style:none;margin:0;padding:0}
.rows li{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-top:1px solid var(--line)}
.rows li:first-child{border-top:0}
code{font-size:.9em}