body {
  font-family: 'Segoe UI', sans-serif;
  margin: 0;
  background: linear-gradient(135deg, #141e30, #243b55);
  color: white;
}

/* NAVBAR */
.navbar {
  background: rgba(0,0,0,0.3);
  padding: 15px;
  text-align: center;
  font-weight: bold;
  backdrop-filter: blur(10px);
}

/* CONTAINER */
.container {
  max-width: 400px;
  margin: auto;
  padding: 20px;
}

.subtitle {
  text-align: center;
  color: #ccc;
}

/* CARD */
.card {
  background: white;
  color: black;
  padding: 20px;
  border-radius: 20px;
  margin-top: 15px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
  animation: fadeIn 0.8s ease;
}

label {
  display: block;
  margin-top: 10px;
  font-weight: 500;
}

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

/* BUTTON */
button {
  margin-top: 15px;
  width: 100%;
  padding: 12px;
  border-radius: 10px;
  border: none;
  background: linear-gradient(45deg, #25D366, #128C7E);
  color: white;
  font-weight: bold;
  cursor: pointer;
  transition: 0.3s;
}

button:hover {
  transform: scale(1.05);
}

/* RESULT */
.result-card {
  display: none;
  margin-top: 20px;
  background: white;
  color: black;
  padding: 15px;
  border-radius: 20px;
  animation: fadeIn 0.5s ease;
}

/* PROGRESS */
.progress {
  height: 15px;
  background: #ddd;
  border-radius: 10px;
  margin: 10px 0;
}

#progressBar {
  height: 100%;
  width: 0%;
  border-radius: 10px;
  transition: 0.5s;
}

/* ANIMATION */
@keyframes fadeIn {
  from {opacity: 0; transform: translateY(10px);}
  to {opacity: 1; transform: translateY(0);}
}

/* RESPONSIVE */
@media (max-width: 500px) {
  .container {
    padding: 10px;
  }
}