body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f4f4f4;
    color: #333;
    margin: 0;
    padding: 0;
}

/* Banner responsivo */
.banner {
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  display: flex;
  justify-content: center;
  margin: 0 auto;
}

.banner img {
  width: 100%;
  height: auto;
  max-height: 250px;
  object-fit: cover;
  display: block;
}

header {
    background: #9c0c15;
    color: white;
    padding: 40px 0;
    text-align: center;
}

header h1 {
    margin: 0;
    font-size: 2.8em;
}

header p {
    margin-top: 10px;
    font-size: 1.2em;
}

section {
    padding: 40px 20px;
    max-width: 1000px;
    margin: auto;
}

section h2 {
    color: #9c0c15;
    font-size: 2em;
    margin-bottom: 20px;
}

section p {
    font-size: 1.1em;
    line-height: 1.6;
}

.feature {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 30px;
}

.feature img {
    width: 60px;
    height: 60px;
}

form {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    max-width: 600px;
    margin: 40px auto;
}

form input[type="email"] {
    width: calc(100% - 22px);
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

form input[type="submit"] {
    background: #9c0c15;
    color: white;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    border-radius: 4px;
    font-size: 1em;
}

footer {
    background: #222;
    color: #aaa;
    text-align: center;
    padding: 20px;
    font-size: 0.9em;
    margin-top: 40px;
}