* {
    padding: 0;
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

::selection{
    background-color: #23a5cc;
    color: #fff;
}

/* Background Video  */
.bg_vdo {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    z-index: -1;
}

.bg_vdo video {
    position: relative;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    object-fit: cover;
}

.container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-image: linear-gradient(rgba(206, 221, 226, 0.9), rgba(0, 0, 0, 0.9));
    overflow: scroll;
}

.container header {
    padding: 20px 100px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header .logo img {
    width: 100px;
}

header nav ul {
    display: flex;
    align-items: center;
    gap: 30px;
    list-style: none;
}

header nav ul li a {
    color: #fff;
    text-decoration: none;
}

header nav ul li a:hover {
    color: #23a5cc;
    text-decoration: underline;
}

/* Active Nav Link */
.active {
    color: #23a5cc;
}

/* For responsive sidebar */
header .menu {
    width: 25px;
    display: none;
    cursor: pointer;
}

header .menu img {
    width: 100%;
    filter: invert(1);
}

header nav.sidebar {
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    height: 100vh;
    width: 100%;
    z-index: 10000;
}

header nav.sidebar ul {
    background-color: #fff;
    height: 100vh;
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 50px;
}

header nav.sidebar ul li a {
    color: #23a5cc;
}

.content {
    padding: 20px 100px;
    display: none;
    justify-content: space-between;
    align-items: center;
    margin-top: 40px;
    min-height: 455px;
}

#home {
    display: flex;
}

#gallery img {
    /* WebKit Prefixed */
    /* -webkit-mask-image: radial-gradient(ellipse, rgba(0, 0, 0, 1) 20%, rgba(0, 0, 0, 0) 80%);
    -webkit-mask-repeat: no-repeat;
    -webkit-mask-position: center;
    -webkit-mask-size: cover; */

    /* Standardized */
    mask-image: radial-gradient(ellipse, rgba(0, 0, 0, 1) 20%, rgba(0, 0, 0, 0) 80%);
    mask-repeat: no-repeat;
    mask-position: center;
    mask-size: cover;
}

.content .details {
    max-width: 450px;
}

.content h1 {
    font-size: 2.5rem;
    color: #fff;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 10px;
    text-shadow: 1px 1px 5px rgba(0, 0, 0, 0.3);
}

.content p {
    font-size: 1.1rem;
    color: #c6c6c6;
    line-height: 1.6;
    margin-bottom: 15px;
}

.content a {
    display: inline-block;
    margin-right: 10px;
    padding: 10px 20px;
    background-color: #007bff;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    transition: background-color 0.3s ease;
}

.content a:hover {
    background-color: #23a5cc;
}

.container .social_media {
    padding: 20px 100px;
    position: absolute;
    bottom: 15px;
    left: 0px;
}

.social_media ul {
    display: flex;
    align-items: center;
    gap: 15px;
    list-style: none;
    margin-top: 30px;
}

.social_media ul li a img {
    opacity: 0.4;
}

.social_media ul li a img:hover {
    opacity: 1;
}