.sign-in {
  max-width: 520px;
  padding: 28px;
  margin: 0 auto 18px;
  background: white;
  border: 1px solid #dce3ee;
  border-radius: 12px;
  box-shadow: 0 2px 12px #1720330d;
}
.sign-in p { color: #536277; line-height: 1.45; }
.button { display: inline-block; border-radius: 7px; background: #1768e5; color: #fff; padding: 10px 14px; font-weight: 700; text-decoration: none; }
.button:hover { background: #0d56c8; }