* {
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  background: #f2f2f2;
  margin: 0;
  padding: 0;
}

.container {
  max-width: 700px;
  margin: 40px auto;
  background: white;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 0 12px rgba(0, 0, 0, 0.1);
}

h1 {
  text-align: center;
  color: #7C04F7;
}

textarea {
  width: 100%;
  height: 150px;
  padding: 10px;
  font-size: 1em;
  resize: vertical;
  margin-bottom: 20px;
}

button {
  display: block;
  width: 100%;
  padding: 12px;
  background-color: #7C04F7;
  color: white;
  font-size: 16px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

button:hover {
  background-color: #6200c8;
}

.resultados {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 30px;
}

.resultados h2 {
  margin-bottom: 10px;
}

ul {
  list-style-type: none;
  padding: 0;
}

.valido li {
  color: green;
}

.invalido li {
  color: red;
}