body {
  font-family: Arial;
  background: #f5f5f5;
  margin: 0;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.box {
  background: white;
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  width: 320px;
}

.logo {
  max-width: 140px;
  display: block;
  margin: 0 auto 20px;
}

.btn {
  display: block;
  background: black;
  color: white;
  padding: 12px;
  margin-top: 15px;
  text-decoration: none;
  border-radius: 8px;
}input {
  width: 100%;
  padding: 12px;
  margin-top: 15px;
  border-radius: 8px;
  border: 1px solid #ccc;
  box-sizing: border-box;
}