body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    color: white;
}

header, footer {
    background-size: cover;
    background-position: center;
    color: rgb(229, 243, 229);
    text-align: center;
    padding: 100px 20px;
    position: relative;
    background-repeat: no-repeat;
}

header {
    background-image: url('header.jpg');
}

footer {
    background-image: url('footer.jpg');
}

header::before, footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1;
}

header h1, footer p {
    position: relative;
    z-index: 2;
}
footer a{
    position: relative;
    z-index: 2;
}

#git{
    z-index: 0;
    margin: 30px;
    background-color: rgba(63, 170, 63, 0.377);
    border-radius: 100px    
    
}
section {
    padding: 100px 20px;
    background-image: url('section.jpg');
    background-size: cover;
    background-attachment: fixed;
    background-position: center;
    color: rgb(204, 241, 215);
    background-repeat: no-repeat;
}

.sustainability-tips {
    max-width: 800px;
    margin: 0 auto;
    background: rgba(0, 0, 0, 0.7);
    padding: 20px;
    border-radius: 10px;
}

.sustainability-tips h2, .sustainability-tips h3 {
    text-align: center;
}

.tip {
    margin-bottom: 40px;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    text-align: center;
}

.tip img {
    width: 300px;
    height: 300px;
    margin-right: 20px;
    border-radius: 10px;
    flex-shrink: 0;
}

.tip:nth-child(even) {
    flex-direction: row-reverse;
}

.tip-text {
    flex: 1;
}

.tip-text h3 {
    margin-bottom: 10px;
}

.tip-text p {
    margin: 0;
}
p.nao{
    text-align: center;
}
#nao{
    justify-content: center;
    text-align: center;
    flex: auto;

}

@media (max-width: 768px) {
    header, footer, section {
        background-size: cover;
    }
    
    .tip img {
        width: 100%; /* Imagem ocupa 100% da largura da tela */
        height: auto; /* Altura automática para manter a proporção */
        margin-bottom: 10px;
        margin: auto;
       
    }

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

    .tip-text {
        text-align: center;
        width: 100%;
    }
}

.swap-button {
    display: block;
    margin: 30px auto;
    padding: 10px 20px;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.swap-button:hover {
    background-color: #45a049;
}