* {
    Margin: 0;
    Padding: 0;
    Font-family: “Josefin Sans”, sans-serif;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

html,
body {
    height: 100%;
}

Header {
    Height: 100%;
    Background-image: linear-gradient(rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.15)),
    url("contents/bg4.avif");
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
}

Nav {
    Width: 100%;
    Height: 12vh;
    Color: white;
    Display: flex;
    Justify-content: space-between;
    Align-items: center;
    Text-transform: uppercase;
    position: absolute;
}

.logo {
    margin-left: 20px;
    margin-bottom: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.menu {
    float: right;
    justify-content: space-evenly;
    width: 70%;
    max-width: 800px;
    display: none;
}

.menu a {
    font-size: 18px;
    Text-decoration: none;
    Color: #ffffff;
    Font-weight: bold;
    padding-bottom: 5px;
    border-bottom: 4px solid transparent;
    transition-duration: .2s;
}

.menu a:hover{
    border-bottom: 4px solid rgb(11, 125, 187);
}

.sidebar-btn {
    font-size: 25px;
    margin-right: 30px;
    cursor: pointer;
    z-index: 5;
    user-select: none;
    position: fixed;
    right: 0px;
}

/* side menu area starts here ----------------------------- */

.side-menu {
    position: fixed;
    right: -200px;
    background-color: rgb(17, 18, 26);
    height: 100vh;
    width: 300px;
    max-width: 100vw;
    right: 0px;
    display: flex !important;
    flex-direction: column;
    transition-duration: .3s;
    transition-timing-function: ease-out;
    right: -300px;
    z-index: 4;
}

#side-menu-img {
    margin: 20px auto;
}

.side-menu a {
    text-decoration: none;
    color: white;
    font-weight: bold;
    font-size: 20px;
    border-bottom: 3px solid rgb(0, 0, 0);
    margin-inline: 30px;
    margin-top: 10px;
    padding: 20px;
    transition-duration: .2s;
}

.side-menu a:hover{
    border-bottom: 3px solid rgb(11, 125, 187);
}

/* main introduction content starts here --------------------- */

.head-box {
    Width: 100%;
    Height: 85vh;
    Display: flex;
    flex-direction: column;
    Justify-content: center;
    Align-items: center;
    Text-align: center;
    Color: rgb(215, 237, 237);
}

.container{
    padding-top: 20vh;
}

#title{
    padding-bottom: 30px;
}



section {
    margin-bottom: 20px;
}

input, textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

.btn {
    padding: 10px 20px;
    background-color: rgb(11, 125, 187);
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background-color: #555;
}

/* image display area ------------------------------------ */

.image-container{
    margin: 50px;
}

/* conatiner 2 starts here---------------------- */

.container2 {
    padding: 10px;
    display: flex;
    justify-content: center;
    background-position: cover;
    align-items: center;
    flex-direction: column;
    background-image: url("/contents/bg2.jpg");
    background-position: center;
    background-size: cover;
    background-attachment: fixed;
    color: white;
    height: 100%;
    width: 100%;
    position: relative;
}

.container2::before {
    position: absolute;
    z-index: 2;
    bottom: 0px;
    content: "";
    width: 100%;
    height: 100%;
    background-image: linear-gradient(rgba(0, 0, 0, 0.754), transparent,transparent, rgba(0, 0, 0, 0.656),rgb(0, 0, 0));
}

.output-info {
    position: relative;
    z-index: 2;
    padding: 10px;
    border-radius: 4px;
    letter-spacing: 2px;
    font-weight: 600;
    cursor: pointer;
    width: 60vw;
    text-align: center;
    margin-top: 30px;
    max-width: 400px;
    transition-duration: .2s;
}

.image-container{
    z-index: 3;
}


/* footer ----------------------------------------------------- */

footer {
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    height: 50px;
    background-color: rgb(0, 0, 0);
    color: rgb(189, 189, 189);
}




/* black effect div  */
.black-effect {
    width: 100%;
    height: 100%;
    position: fixed;
    display: none;
    background-color: rgb(0, 0, 0, .5);
    z-index: 2;
    top: 0;

}



/* media queries / responsiveness--------------------------  */

@media (min-width: 700px) {

    .sidebar-btn {
        display: none;
    }
    .menu {
        display: flex;
    }

    .side-menu {
        display: none;
    }

}