body, html {
    margin: 0;
    padding: 0;
    background-color: #191919;
    scroll-behavior: smooth;
}

/* Desktop Styles */
@media (min-width: 1024px) {
    #S1, #S2, #S3, #S4 {
        display: flex;
        justify-content: center;
        align-items: center;
        height: 100vh;
    }

    .content {
        text-align: center;
    }

    img {
        max-width: 65%;
        height: auto;
    }

    p {
        margin-top: 20px;
    }
}

/* Tablet Styles */
@media (max-width: 1023px) and (min-width: 768px) {
    /* Adjust styles for tablets here */
}

/* Mobile Styles */
@media (max-width: 767px) {
    /* Adjust styles for mobile here */
}


.navbar {
    background-color: #2ecc71;
    overflow: hidden;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
}

.navbar ul:nth-of-type(1) {
    list-style-type: none;
    margin: 0;
    margin-top: 5px;
    margin-bottom: 5px;
    padding: 0;
    overflow: hidden;
}

.navbar p {

    display: block;
    color: #191919;
    text-align: center;
    text-decoration: none;
    margin-top: 14px;
}

.navbar li {
    float: left;
    margin: 0 10px;
}

.navbar a {
    display: block;
    color: #191919;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
}

.navbar a:hover {
    background-color: #191919;
    color: #2ecc71;
    border-radius: 4px;
    transition: .7s;
}

.navbar ul:nth-of-type(2) {
    list-style-type: none;
    margin: 0;
    margin-top: 5px;
    margin-bottom: 5px;
    padding: 0;
    overflow: hidden;
}

/*------------------------------*/

#S1 {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

#S1 .content {
    text-align: center;
}

#S1 img {
    max-width: 50%;
    height: auto;
    margin-left: 25%;
    border-radius: 2px;
}

#S1 p {
    margin-top: 15px;
    color: #2ecc71;
    text-align: center;
    font-size: 18px;
}

#S1 h3 {
    margin-top: 20px;
    color: #2ecc71;
    text-align: center;
    font-size: 24px;
} 
#S1 h2 {
    margin-top: 20px;
    color: #2ecc71;
    text-align: center;
    font-size: 32px;
}

/*----------------------------------*/

#S2 {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

#S2 .content {
    text-align: center;
}

#S2 img {
    max-width: 50%;
    height: auto;
    margin-left: 25%;
    border-radius: 2px;
}

#S2 p {
    margin-top: 15px;
    color: #2ecc71;
    text-align: center;
    font-size: 18px;
}

#S2 h3 {
    margin-top: 20px;
    color: #2ecc71;
    text-align: center;
    font-size: 24px;
}

/*----------------------------------*/

#S3 {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

#S3 .content {
    text-align: center;
}

#S3 img {
    max-width: 50%;
    height: auto;
    margin-left: 25%;
    border-radius: 2px;
}

#S3 p {
    margin-top: 15px;
    color: #2ecc71;
    text-align: center;
    font-size: 18px;
}

#S3 h3 {
    margin-top: 20px;
    color: #2ecc71;
    text-align: center;
    font-size: 24px;
}

/*----------------------------------*/

#S4 {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

#S4 .content {
    text-align: center;
}

#S4 img {
    max-width: 50%;
    height: auto;
    margin-left: 25%;
    border-radius: 2px;
}

#S4 p {
    margin-top: 15px;
    color: #2ecc71;
    text-align: center;
    font-size: 18px;
}

#S4 h3 {
    margin-top: 20px;
    color: #2ecc71;
    text-align: center;
    font-size: 24px;
}

/*-------------------------*/

#S5 {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

#S5 .content {
    text-align: center;
}

#S5 img {
    max-width: 50%;
    height: auto;
    margin-left: 25%;
    border-radius: 2px;
}

#S5 p {
    margin-top: 15px;
    color: #2ecc71;
    text-align: center;
    font-size: 18px;
}

#S5 h3 {
    margin-top: 20px;
    color: #2ecc71;
    text-align: center;
    font-size: 24px;
}

#S5 h2 {
    margin-top: 20px;
    color: #2ecc71;
    text-align: center;
    font-size: 32px;
}


/*---------------------------------*/

#S6 {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

#S6 .content {
    text-align: center;
}

#S6 img {
    max-width: 50%;
    height: auto;
    margin-left: 25%;
    border-radius: 2px;
}

#S6 p {
    margin-top: 15px;
    color: #2ecc71;
    text-align: center;
    font-size: 18px;
}

#S6 h3 {
    margin-top: 20px;
    color: #2ecc71;
    text-align: center;
    font-size: 24px;
}

/*------------------------*/

#S7 {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

#S7 .content {
    text-align: center;
}

#S7 img {
    max-width: 50%;
    height: auto;
    margin-left: 25%;
    border-radius: 2px;
}

#S7 p {
    margin-top: 15px;
    color: #2ecc71;
    text-align: center;
    font-size: 18px;
}

#S7 h3 {
    margin-top: 20px;
    color: #2ecc71;
    text-align: center;
    font-size: 24px;
}

/*------------------------*/

#S8 {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

#S8 .content {
    text-align: center;
}

#S8 img {
    max-width: 50%;
    height: auto;
    margin-left: 25%;
    border-radius: 2px;
}

#S8 p {
    margin-top: 15px;
    color: #2ecc71;
    text-align: center;
    font-size: 18px;
}

#S8 h3 {
    margin-top: 20px;
    color: #2ecc71;
    text-align: center;
    font-size: 24px;
}

/*------------------*/

.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: #2ecc71;
    color: white;
    padding: 10px 20px;
    border-radius: 4px;
    cursor: pointer;
    display: none;
}

.back-to-top a {
    text-decoration: none;
    color: #191919;
}

@media (min-width: 768px) {
    .back-to-top {
        display: block;
    }
}