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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(135deg, #ff6b6b, #ffa500);
  min-height: 100vh;
  padding: 20px;
}

.container {
  max-width: 400px;
  margin: 0 auto;
  background: white;
  border-radius: 20px;
  padding: 30px 25px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

h1 {
  text-align: center;
  font-size: 28px;
  margin-bottom: 30px;
  color: #333;
}

.input-group {
  margin-bottom: 20px;
}

label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: #555;
  font-size: 16px;
}

input, select {
  width: 100%;
  padding: 15px;
  font-size: 18px;
  border: 2px solid #ddd;
  border-radius: 12px;
  background: #f9f9f9;
  transition: border-color 0.3s;
  -webkit-appearance: none;
}

input:focus, select:focus {
  outline: none;
  border-color: #ff6b6b;
  background: white;
}

button {
  width: 100%;
  padding: 18px;
  font-size: 18px;
  font-weight: 600;
  background: #ff6b6b;
  color: white;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: transform 0.2s;
  margin: 10px 0 25px;
}

button:active {
  transform: scale(0.98);
}

.results {
  display: grid;
  grid-template-columns: 1fr;
  gap: 15px;
}

.result-card {
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: white;
  padding: 20px;
  border-radius: 15px;
  text-align: center;
}

.result-card h3 {
  font-size: 14px;
  opacity: 0.9;
  margin-bottom: 8px;
}

.result-card p {
  font-size: 28px;
  font-weight: bold;
}

@media (max-width: 480px) {
  body {
    padding: 10px;
  }
  
  .container {
    padding: 25px 20px;
  }
}