:root {
    --bg: #ffffff;
    --text: #000000;
    --card-bg: #f8f8f8;
    --modal-bg: #ffffff;
    --verde: #00ff99;
    --cinza: #555555;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #121212;
        --text: #f0f0f0;
        --card-bg: #1e1e1e;
        --modal-bg: #1f1f1f;
        --cinza: #aaaaaa;
    }
}


body {
    background-color: var(--bg);
    color: var(--text);
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    text-align: center;
}



.titulo {
    text-align: center;
    margin-top: 30px;
    font-size: 28px;
    
}

.container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 100px);
}

.card {
    background-color: white;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    max-width: 800px;
    width: 90%;
}

.card img {
    width: 200px;
    display: block;
    margin: 0 auto 20px auto;
}

h2, h3 {
    color: #333;
}

h2 {
    text-align: center;
    margin-bottom: 15px;
}

h3, h4 {
    margin-top: 25px;
    color: #007BFF;
}



p {
    text-align: center;
    color: #555;
    line-height: 1.6;
}

ul {
    color: #555;
    padding-left: 20px;
}

ul li {
    margin-bottom: 8px;
}

.btn {
    display: inline-block;
    background-color: #007BFF;
    color: white;
    padding: 10px 18px;
    border-radius: 8px;
    text-decoration: none;
    transition: background-color 0.3s ease;
}

.btn:hover {
    background-color: #0056b3;
}

a {
    color: #007BFF;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* RESPONSIVIDADE */
@media (max-width: 900px) {
    header .container {
        flex-direction: column;
        gap: 15px;
    }

    header nav ul {
        flex-direction: column;
        gap: 15px;
        align-items: center;
    }

    .cards {
        flex-direction: column;
        align-items: center;
    }

    .card {
        width: 90%;
    }
}

@media (max-width: 500px) {
    header h1 {
        font-size: 20px;
    }

    h2 {
        font-size: 24px;
    }

    .btn {
        padding: 10px 20px;
    }

    input, textarea {
        width: 100%;
    }

    nav ul {
        gap: 10px;
    }
}