html,body{height:100%;margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial;background:#f6f7fb}
.card{max-width:420px;margin:7vh auto;background:#fff;border:1px solid #eee;border-radius:16px;padding:18px 18px 16px;box-shadow:0 10px 30px rgba(0,0,0,.06)}
.card.wide{max-width:860px}
h1{margin:0 0 12px}
label{display:block;font-size:13px;opacity:.75;margin:10px 0 6px}
input{width:100%;padding:10px 12px;border:1px solid #ddd;border-radius:12px}
button{margin-top:14px;width:100%;padding:11px 12px;border:0;border-radius:12px;background:#111;color:#fff;font-weight:700;cursor:pointer}
.err{background:#ffecec;border:1px solid #ffc7c7;color:#7a1a1a;padding:10px 12px;border-radius:12px;margin:10px 0}
.ok{background:#ecfff0;border:1px solid #bff0c8;color:#135b23;padding:10px 12px;border-radius:12px;margin:10px 0}
.muted{opacity:.7;font-size:14px;margin-top:12px}
a{color:#111}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
@media (max-width:760px){.grid{grid-template-columns:1fr}}
.row{display:flex;align-items:center;gap:10px}
.spacer{flex:1}
.btnlink{padding:8px 10px;border:1px solid #ddd;border-radius:10px;text-decoration:none;font-size:14px}