* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  background: linear-gradient(to right, #6a11cb, #2575fc);
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
  padding: 20px;
}
.logo {
  margin-top: 30px;
  text-align: center;
  font-size: 2rem;
  font-weight: 700;
  color: #fff;
}
.logo img {
  width: 80px;
  height: 80px;
  border-radius: 16px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}
h1 {
  font-size: 2rem;
  margin: 10px 0 30px;
  text-align: center;
  font-weight: 700;
  animation: fadeInDown 1s ease forwards;
}
form {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 12px;
  padding: 25px 20px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
  animation: fadeInUp 1s ease forwards;
}
label {
  font-weight: 600;
  margin-top: 15px;
  display: block;
}
input, select {
  width: 100%;
  padding: 10px;
  margin-top: 5px;
  border-radius: 6px;
  border: none;
  font-size: 1rem;
}
.hidden { display: none; }
button {
  width: 100%;
  padding: 12px;
  margin-top: 25px;
  font-size: 1rem;
  font-weight: 600;
  background: #fff;
  color: #2575fc;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.3s ease;
}
button:hover {
  background: #e0e0ff;
}
#preview-bar {
  margin-top: 20px;
  background: rgba(255,255,255,0.15);
  padding: 15px;
  border-radius: 10px;
  width: 100%;
  max-width: 400px;
  display: none;
  flex-direction: column;
  gap: 10px;
}
#preview-bar.visible {
  display: flex;
}
#download-btn {
  background: #fff;
  color: #2575fc;
  padding: 10px 14px;
  border-radius: 6px;
  font-weight: bold;
  border: none;
  cursor: pointer;
  align-self: flex-end;
  width: auto;
  max-width: 200px;
}
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-30px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}