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

body {
  font-family: "Segoe UI", sans-serif;
  background-color: #f0f2f5;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.container {
  max-width: 400px;
  margin: auto;
  background: #fff;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
  text-align: center;
  margin-top: 4rem;
}

h1 {
  margin-bottom: 1rem;
  color: #222;
}

.form-group {
  margin: 1rem 0;
  text-align: left;
}

label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

input, select {
  width: 100%;
  padding: 10px;
  margin-top: 5px;
  border: 1px solid #ccc;
  border-radius: 6px;
}

button {
  padding: 12px 20px;
  background-color: #0f8b8d;
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: bold;
  margin-top: 1rem;
}

button:hover {
  background-color: #0c6c6e;
}

#qrcode {
  margin-top: 20px;
}

#download-btn {
  display: inline-block;
  margin-top: 1rem;
  padding: 10px 16px;
  background-color: #444;
  color: white;
  border-radius: 6px;
  text-decoration: none;
  font-size: 0.9rem;
}

footer {
  text-align: center;
  padding: 1rem;
  font-size: 0.85rem;
  color: #777;
  margin-top: auto;
}