/* Reset y base */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

main {
  background: white;
  padding: 2.5rem;
  border-radius: 15px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 1.00);
  width: 100%;
  max-width: 450px;
  text-align: center;
}

h1 {
  color: #333;
  margin-bottom: 2rem;
  font-size: 1.8rem;
  font-weight: 600;
}

form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

label {
  font-weight: 600;
  color: #555;
  font-size: 1.1rem;
}

input[type="numero"] {
  padding: 1rem;
  border: 2px solid #e1e5e9;
  border-radius: 8px;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  text-align: center;
}

input[type="numero"]:focus {
  outline: none;
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

button {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  padding: 1rem 2rem;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

button:active {
  transform: translateY(0);
}

#result {
  padding: 1.5rem;
  border-radius: 10px;
  font-size: 1.2rem;
  font-weight: 600;
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.adult {
  background: linear-gradient(135deg, #4CAF50, #45a049);
  color: white;
  border: 2px solid #4CAF50;
}

.minor {
  background: linear-gradient(135deg, #ff9800, #f57c00);
  color: white;
  border: 2px solid #ff9800;
}

.error {
  background: linear-gradient(135deg, #f44336, #d32f2f);
  color: white;
  border: 2px solid #f44336;
}

.hidden {
  opacity: 0;
  transform: translateY(-10px);
}

.show {
  opacity: 1;
  transform: translateY(0);
}