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

body {
  font-family: Arial, sans-serif;
  background: #0b0b0b;
  color: white;
  min-height: 100vh;
}

.container {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.card {
  width: 100%;
  max-width: 420px;
  text-align: center;
  padding: 50px 30px;
  border: 1px solid #333;
  border-radius: 24px;
  background: #111;
}

.brand {
  font-size: 28px;
  font-weight: bold;
  letter-spacing: 1px;
  margin-bottom: 40px;
}

.nfc-icon {
  font-size: 55px;
  margin-bottom: 25px;
}

h1 {
  font-size: 32px;
  margin-bottom: 15px;
}

.subtitle {
  color: #aaa;
  font-size: 16px;
  margin-bottom: 35px;
}

.button {
  display: inline-block;
  background: white;
  color: black;
  text-decoration: none;
  padding: 14px 30px;
  border-radius: 30px;
  font-weight: bold;
}

.button:hover {
  opacity: 0.85;
}