:root{--brand:#1AAA4F;--brand-dk:#138f41;--ink:#1a2230;--ink2:#5b6676;--line:#e7ebf0;}
*{box-sizing:border-box}
body{margin:0;height:100vh;display:flex;align-items:center;justify-content:center;
  font-family:'Inter',-apple-system,Segoe UI,Arial,sans-serif;color:var(--ink);
  background:linear-gradient(135deg,#eef6ef,#e3eef5);}
.card{background:#fff;border-radius:18px;box-shadow:0 12px 50px rgba(16,24,40,.14);
  padding:38px 34px;width:340px;text-align:center}
.card img{height:46px;margin-bottom:8px}
.card .sub{color:var(--ink2);font-size:13px;margin-bottom:24px}
.card label{display:block;text-align:left;font-size:12px;font-weight:600;color:var(--ink2);
  margin:0 0 5px 2px}
.card input{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:10px;
  font-family:inherit;font-size:14px;margin-bottom:16px;outline:none}
.card input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(26,170,79,.15)}
.card button{width:100%;padding:12px;border:none;border-radius:10px;background:var(--brand);
  color:#fff;font-family:inherit;font-size:15px;font-weight:600;cursor:pointer;
  box-shadow:0 4px 14px rgba(26,170,79,.3)}
.card button:hover{background:var(--brand-dk)}
.err{background:#fdecec;color:#b3261e;border-radius:10px;padding:9px;font-size:13px;margin-bottom:16px}