:root{--bg:#f8fafc;--ink:#111827;--muted:#6b7280;--btn:#2d365f}
*{box-sizing:border-box} body{font-family:system-ui,Segoe UI,Roboto,Arial;margin:0;background:var(--bg);color:var(--ink)}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.span2{grid-column:1/-1}
label{display:flex;flex-direction:column;gap:6px}
input{padding:12px;border:1px solid #d1d5db;border-radius:8px}
.btn{margin-top:14px;background:var(--btn);color:#fff;border:0;padding:12px 18px;border-radius:999px;cursor:pointer}
.muted{color:var(--muted);margin-top:8px}
@media(max-width:640px){.grid{grid-template-columns:1fr}}