* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body, html {
  width: 100%;
  height: 100%;
  font-family: 'Segoe UI', Arial, sans-serif;
  background: url('https://setcesp.org.br/wp-content/uploads/2022/05/rodonaves.png') no-repeat center center/cover;
  display: flex;
  justify-content: center;
  align-items: center;
  color: #004aad;
  font-weight: bold;
}

.overlay {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(6px);
  padding: 40px;
  border-radius: 10px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.login-box {
  width: 320px;
  text-align: center;
}

.logo {
  width: 160px;
  margin-bottom: 20px;
}

input {
  width: 100%;
  padding: 12px;
  margin-bottom: 16px;
  border: 2px solid #fff;
  border-radius: 4px;
  font-size: 16px;
  color: #004aad;
  background-color: #ffffff;
  font-weight: bold;
}

button {
  width: 100%;
  padding: 12px;
  background: #004aad;
  color: white;
  font-size: 16px;
  font-weight: bold;
  border: 2px solid #fff;
  border-radius: 4px;
  cursor: pointer;
}

button:hover {
  background: #003480;
}

.qr-code {
  margin-top: 20px;
  width: 150px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.resultado {
  margin-top: 20px;
  padding: 15px;
  background-color: rgba(255, 255, 255, 0.9);
  border: 2px solid #fff;
  border-radius: 6px;
  color: #004aad;
  text-align: left;
}