html, body {
            margin: 0;
            padding: 0;
            height: 100%;
            font-family: Arial, sans-serif;
        }

        body {
            background: url(haberdoedas-sfakq8z5s1s-unsplash-min.jpg) no-repeat center center;
            background-size: cover;
            color: #fff;
        }

       
        header {
          
              background: #0b8c74;
            padding: 15px 40px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 18px;
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 10;
        }
        .navbar{
            margin-right: 100px;
        }

       
        .logo {
            font-size: 32px;
            font-weight: bold;
            color: #a7fff9; 
            letter-spacing: 1px;
        }

      
        nav a {
            color: #fff;
            text-decoration: none;
            font-weight: bold;
            margin-left: 35px;
        }

        nav a:hover {
            text-decoration: underline;
        }

        .content {
            max-width: 900px;
            margin: 200px auto 0 auto;
            text-align: left;
            padding: 40px;
            background: rgba(183, 193, 190, 0.6);

            border-radius: 12px;
        }

        .content h1 {
            margin-bottom: 20px;
            color: black;
        }

        .content p {
            font-size: 18px;
            line-height: 1.6;
            color: black;
        }
.btn-box {
margin-top: 25px;
display: flex;
justify-content: center;
gap: 20px;
}


.main-btn {
padding: 12px 28px;
font-size: 18px;
border: none;
border-radius: 8px;
cursor: pointer;
font-weight: bold;
background: #0b8c74;
color: white;
transition: 0.3s;
}


.main-btn:hover {
background: #0fa98d;
}

       
  footer {
    background: #0b8c74;
    color: white;

        margin: 120px 0 0 0; 
    padding: 30px 0 20px;
}

.footer-container {
    width: 90%;
    margin: auto;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.footer-col {
    width: 23%;
    min-width: 200px;
    margin-bottom: 20px;
}
.footer-col h3,
.footer-col h4 {
    margin-bottom: 15px;
    font-size: 22px;
    color: white;
}

.footer-col p {
    line-height: 1.6;
    opacity: 0.8;
}

footer-col ul {
    list-style: none;
    padding: 0;
}

.footer-col ul li {
    margin: 8px 0;
}
.footer-col ul li a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: 0.3s;
}

.footer-col ul li a:hover {
    color: white;
    opacity: 1;
}

.footer-bottom {
    text-align: center;
    padding: 15px 0;
    border-top: 1px solid white;
    margin-top: 20px;
    font-size: 14px;
   opacity:0.7;
}

@media (max-width: 1024px) {

    header {
        padding: 15px 20px;
    }

    .navbar {
        margin-right: 20px;
    }

    nav a {
        margin-left: 20px;
        font-size: 16px;
    }

    .content {
        margin: 160px 20px 0;
        padding: 30px;
    }

    .footer-container {
        justify-content: center;
        text-align: center;
    }

    .footer-col {
        width: 45%;
    }
}


@media (max-width: 768px) {

    header {
        flex-direction: column;
        padding: 15px 0;
        text-align: center;
    }

    .navbar {
        margin: 10px 0 0 0;
    }

    nav a {
        margin: 0 15px;
        font-size: 16px;
    }

    .content {
        margin: 180px 15px 0;
        padding: 25px;
    }

    .btn-box {
        flex-direction: column;
        gap: 10px;
    }

    .main-btn {
        width: 100%;
        max-width: 300px;
        margin: auto;
    }

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


@media (max-width: 480px) {

    .logo {
        font-size: 26px;
    }

    nav a {
        margin: 0 10px;
        font-size: 14px;
    }

    .content {
        margin: 160px 10px 0;
        padding: 20px;
    }

    .content h1 {
        font-size: 24px;
    }

    .content p {
        font-size: 16px;
    }

    .btn-box {
        flex-direction: column;
        gap: 10px;
    }

    .main-btn {
        width: 100%;
        font-size: 16px;
        padding: 10px 20px;
    }

    .footer-col {
        width: 100%;
        margin-bottom: 20px;
    }

    .footer-container {
        text-align: center;
    }
}