body {
    font-family: Arial, sans-serif;
    background-color: #1a1a2e;
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}
.container {
    background: #16213e;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.5);
    width: 90%;
    max-width: 500px;
}
input {
    width: 70%;
    padding: 10px;
    border-radius: 5px;
    border: none;
    margin-right: 10px;
}
button {
    padding: 10px 20px;
    background-color: #e94560;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
}
button:hover { background-color: #d1324d; }
.oculto { display: none; }
.btn-final {
    display: inline-block;
    margin-top: 20px;
    padding: 10px 15px;
    background: #0f3460;
    text-decoration: none;
    color: white;
    border-radius: 5px;
}