body {
    margin: 0;
    padding: 0;
    background-image: url('https://images.ecycle.com.br/wp-content/uploads/2021/05/20195924/o-que-e-paisagem.jpg.webp');
    background-size: cover;
    background-position: center;
    font-family: Arial, sans-serif;
    color: #fff;
    text-align: center;
    min-height: 100vh;
}

.overlay {
    background: rgba(0, 0, 50, 0.6);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.container {
    position: relative;
    z-index: 2;
    padding: 50px 20px;
    max-width: 700px;
    margin: auto;
    background-color: rgba(0, 0, 50, 0.5);
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(255,255,255,0.2);
}

h1 {
    font-size: 36px;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

label {
    font-size: 16px;
    text-align: left;
    margin-bottom: 5px;
}

input[type="text"],
input[type="email"],
input[type="date"],
select,
textarea {
    padding: 10px;
    border-radius: 5px;
    border: none;
    font-size: 16px;
    background: rgba(255,255,255,0.9);
    color: #000;
    width: 100%;
    box-sizing: border-box;
}

textarea {
    resize: vertical;
    min-height: 100px;
    max-height: 300px;
}

button[type="submit"] {
    padding: 12px;
    font-size: 18px;
    border: none;
    border-radius: 5px;
    background: linear-gradient(90deg,#ff0000,#ff9900,#33cc33,#00ccff,#9933ff);
    background-size: 300% 300%;
    color: #fff;
    cursor: pointer;
    font-weight: bold;
    animation: rainbowShimmer 2s linear infinite;
    transition: background 0.3s ease;
}

button[type="submit"]:hover {
    opacity: 0.9;
}

@keyframes rainbowShimmer {
    0% { background-position: 0% 50%; }
    100% { background-position: 100% 50%; }
}