@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600&display=swap');

body {
  font-family: 'Inter', sans-serif;
  margin: 0;
  background: #0e0e0e;
  color: #fff;
  display: flex;
  justify-content: center;
  padding: 2rem;
}
.container {
  max-width: 420px;
  width: 100%;
  margin: auto;
}
h1 {
  text-align: center;
  font-size: 1.5rem;
  margin-bottom: 1.2rem;
}
input, button {
  width: 100%;
  margin: 0.5rem 0;
  padding: 0.75rem;
  font-size: 1rem;
  border: none;
  border-radius: 10px;
  box-sizing: border-box;
}
input {
  background-color: #f5f5f5;
  color: #000;
}
button {
  background-color: #FFD700;
  color: black;
  font-weight: 600;
  cursor: pointer;
}
.card-preview {
  margin-top: 2rem;
}
.card {
  padding: 1.5rem;
  border-radius: 20px;
  box-shadow: 0 6px 16px rgba(255, 255, 255, 0.05);
  transition: 0.3s;
}
.card.gold {
  background: linear-gradient(135deg, #FFD700, #FFA500);
  color: #111;
}
.card.blue {
  background: linear-gradient(135deg, #1E90FF, #4169E1);
}
.card.dark {
  background: linear-gradient(135deg, #2c2c2c, #000);
}
.logo {
  font-size: 1.2rem;
  font-weight: bold;
}
.number, .name, .bottom {
  margin-top: 1.2rem;
  font-size: 1.1rem;
  letter-spacing: 2px;
  word-spacing: 4px;
  font-family: 'Courier New', monospace;
}
.bottom {
  display: flex;
  justify-content: space-between;
}