* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    color: #333;
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

header {
    background-color: #2c3e50;
    color: white;
    padding: 10px 0;
    border-bottom: 5px solid #2980b9;
}

header nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

header nav div {
    display: flex; 
    align-items: center;
}

header nav div img {
    width: 50px;
    margin-right: 22px;
}

header nav div p {
    display: inline-block;
    font-size: 30px;
    font-weight: bold;
    margin-top: 12px;
}

header nav ul {
    list-style: none;
    display: flex;
    margin: 0;
    padding: 0;
}

header nav ul li {
    color: white;
    margin-left: 20px;
    margin-right: 25px;
    font-size: 22px;
    position: relative;
}

header nav ul li .Home_a {
    text-decoration: none;
    color: white;
}

header nav ul li .Home_a:hover {
    color: #678cb1;
}

header nav ul li .dropdown {
    position: relative;
    padding-bottom: 15px;
}

header nav ul .dropdown:hover {
    color: #678cb1;
    cursor: pointer
}

.dropdown_content {
    display: none;
    position: absolute;    
    background-color: #34495e;
    list-style: none;
    padding: 0;
    margin: 0;
    top: 62.5px;
    left: -20px;
    width: 198px;
}

.dropdown_content li {
    padding: 10px;
    margin-left: 0px;
    padding-left: 20px;
    color: white;
    cursor: pointer;
    text-align: left;
    font-size: 18px;
    border-bottom: 1px solid #2c3e50;
    width: 100%;
}

.dropdown_content li:hover {
    background-color: #2980b9;
}

.show {
    display: block;
}

footer {
    background-color: #2c3e50;
    max-height: 98px;
    color: white;
    padding: 10px 0;
    border-top: 5px solid #2980b9;
    margin: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 12px;
    padding-left: 50px;
}

.footer_credits {
    text-align: center; 
    font-size: small; 
    padding-left: 60px;
}

footer ul li {
    list-style: none;
    display: flex;
    margin: 0 45px;
}

footer ul li p {
    color: white;
    padding-left: 5px; 
    padding-top: 2.5px;
    float: right;
}

/* Introduction section */
h1 {
    text-align: center;
    margin: 20px 0;
    padding-left: 150px;
    padding-right: 150px;
    font-size: 45px;
    color: #2980b9;
}

table {
    max-width: 1200px;
    margin: 20px auto;
    border-spacing: 3px;
}

td {
    padding: 10px;
    text-align: justify;
}

/* Image styling */
img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
}
/* Content styling */
p {
    font-size: 18px;
    margin-bottom: 10px;
}

th, h2 {
    font-size: 28px;
    color: #2980b9;
    text-align: center;
}

/* Dream Destinations styling */
table tr td {
    vertical-align: top;
}

iframe {
    border-radius: 10px;
    margin-top: 10px;
}

a {
    text-decoration: none;
    color: #2980b9;
}

a:hover {
    text-decoration: underline;
}

#homepage_background{
    width: 100%;
    height: 100vh;
    background: 
        linear-gradient(to right, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.65) 10%,rgba(255, 255, 255, 0.65) 90.5%,rgba(255, 255, 255, 0) ),
        url(images/background.jpeg);
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

#introduction {
    padding-left: 50px;
    padding-right: 30px;
}

.section_header {
    font-size: 40px;
}

#profile {
    padding-right: 80px;
    margin-right: 20px;
}

#profile img{
    border-radius: 50%;
}

.section_caption {
    padding-left: 100px;
    padding-right: 100px;
    padding-top: 22px;
    text-align: center;
    font-size: 18px;
}

#destination_list {
    padding-left: 50px;
    padding-right: 95px;
}

#salar {
    vertical-align: middle;
    padding-top: 50px;
    padding-left: 50px;
}

.caption_on_right {
    padding-right: 95px;
}

.img_credits {
    font-size: 15px;
    margin-top: 8px;
    text-align: center;
    font-style: italic;
    display: block;
    font-weight: normal;
}

.img_credits a img {
    width: 20px;
}

#aurora {
    padding-left: 50px;
}

#aurora_video {
    padding-left: 0px;
    padding-top: 65px;
    text-align: left;
}

#aurora_credits {
    padding-right: 90px;
}

#castle {
    padding-top: 22px;
    padding-left: 50px;
}

.continents {
    width: 100%; 
    table-layout: auto; 
    margin: 0 auto;
}

.continents td {
    text-align: center;
    vertical-align: top;
    padding: 20px;
}

.continents h3 {
    color: #2980b9;
    font-size: 25px;
    margin-bottom: 10px;
}

.continents img {
    max-width: 100%;
    height: auto;
    object-fit: cover;
    display: block;
    margin: 0 auto;
    transition: all 0.3s ease;
}

#na:hover {
    cursor: pointer;
    content: url(images/North\ America_green.png);  
}

#sa:hover {
    cursor: pointer;
    content: url(images/South\ America_green.png);
}

#eu:hover {
    cursor: pointer;
    content: url(images/Europe_green.png);
}

#af:hover {
    cursor: pointer;
    content: url(images/Africa_green.png);
}

#as:hover {
    cursor: pointer;
    content: url(images/Asia_green.png);
}

#oc:hover {
    cursor: pointer;
    content: url(images/Australia_green.png);
}

#an:hover {
    cursor: pointer;
    content: url(images/Antarctica_green.png);
}

#NA_background {
    width: 100%;
    height: 100vh;
    color: #333333;
    background: 
        linear-gradient(to right, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.65) 12%,rgba(255, 255, 255, 0.65) 88%,rgba(255, 255, 255, 0) ),
        url(images/NA_images/NA_background_image.jpg);
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

#NA_background em {
    color: rgba(4, 76, 201, 0.95);
    font-style: normal;
}

#NA_background table{
    font-weight: 700;
}

#NA_background h1 {
    color:#333333;
    font-size: 38px;
}

.continent_introduction p {
    padding-left: 120px;
    padding-right: 120px;
    padding-top: 20px;
    text-align: center;
    font-size: 19px;
}

.destinations {
    table-layout: fixed;
    padding-left: 100px;
    padding-right: 95px;
}

.destinations tr td {
    width: 50%;
    height: auto;
    padding-bottom: 5px;
}

.destinations tr td img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

#SA_background {
    width: 100%;
    height: 100vh;
    color: rgb(16, 253, 16);
    background: 
        linear-gradient(to right, rgba(255, 255, 255, 0), rgba(0, 0, 0, 0.584) 12%,rgba(0, 0, 0, 0.584) 88%,rgba(255, 255, 255, 0) ),
        url(images/SA_images/SA_background_image.jpeg);
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

#SA_background em {
    color: rgba(129, 171, 255, 0.95);
    font-style: normal;
}

#SA_background h1 {
    color: rgb(16, 253, 16);
    font-size: 38px;
}

#EU_background {
    width: 100%;
    height: 100vh;
    color: aqua;
    background: 
        linear-gradient(to right, rgba(255, 255, 255, 0), rgba(0, 0, 0, 0.584) 12%,rgba(0, 0, 0, 0.584) 88%,rgba(255, 255, 255, 0) ),
        url(images/EU_images/EU_background_image.jpg);
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

#Eu_background em {
    color: white;
    font-style: normal;
}

#EU_background h1 {
    color: aqua;
    font-size: 38px;
}

#AF_background {
    width: 100%;
    height: 100vh;
    color: rgb(108, 42, 42);
    background: 
        linear-gradient(to right, rgba(255, 255, 255, 0),  rgba(255, 255, 255, 0.65) 12%,rgba(255, 255, 255, 0.65) 88%,rgba(255, 255, 255, 0) ),
        url(images/AF_images/AF_background_image.jpg);
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

#AF_background em {
    color:rgb(107, 147, 42);
    font-style: normal;
}

#AF_background h1 {
    color: rgb(108, 42, 42);
    font-size: 38px;
}

#AS_background {
    width: 100%;
    height: 100vh;
    color: rgb(127, 1, 1);
    background: 
        linear-gradient(to right, rgba(255, 255, 255, 0),  rgba(255, 255, 255, 0.65) 12%,rgba(255, 255, 255, 0.65) 88%,rgba(255, 255, 255, 0) ),
        url(images/AS_images/AS_background_image.jpg);
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

#AS_background em {
    color: rgb(255, 0, 0);
    font-style: normal;
}

#AS_background h1 {
    color: rgb(127, 1, 1);
    font-size: 38px;
}

#OC_background {
    width: 100%;
    height: 100vh;
    color: rgb(255, 255, 0);
    background: 
        linear-gradient(to right, rgba(255, 255, 255, 0),  rgba(255, 255, 255, 0.65) 12%,rgba(255, 255, 255, 0.65) 88%,rgba(255, 255, 255, 0) ),
        url(images/OC_images/OC_background_image.jpg);
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

#OC_background em {
    color: rgb(50, 88, 200);
    font-style: normal;
}

#OC_background h1 {
    color: rgb(255, 255, 0);
    font-size: 38px;
}

#AN_background {
    width: 100%;
    height: 100vh;
    color: rgb(255, 255, 255);
    background: 
        linear-gradient(to right, rgba(255, 255, 255, 0),  rgba(0, 0, 0, 0.65) 12%,rgba(0, 0, 0, 0.65) 88%,rgba(255, 255, 255, 0) ),
        url(images/AN_images/AN_background_image.jpeg);
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

#AN_background em {
    color: deepskyblue;
    font-style: normal;
}

#AN_background h1 {
    color: deepskyblue;
    font-size: 38px;
}

#melting_container {
    text-align: center;
}

#melting_container img {
    max-width: 50%;
}