* {
    box-sizing: border-box;
}

body {
    background-color : rgba(28, 148, 222, 0.601);
    margin: 0px;
    padding: 10px;
}

#wrapper {
    width: 95%;
    margin: auto;
    max-width: 14S00px;
    box-shadow: 0 0 50px rgb(251, 254, 255);
    background: linear-gradient(to bottom, #0f0e40, #013e66);
    padding: 20px;
}

header {
    background-image: url("images/bgg.jpg");
    background-position: center;
    background-size: cover;
    text-align: center;
    padding: 20px;
    position: relative;
    margin: 30px;
    border: 3px solid hsla(180, 100%, 50%, 0.8);
}

h1 {
    text-align: center;
    margin: 0;
    padding: 10px;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
}

h2 {
    text-align: center;
    text-decoration: underline wavy #9ed8ff 1px;
    color:  #7df9ff;
    text-shadow: 0px 0px 8px rgba(0, 0, 0, 0.7) #4fc3ff;
}

h3 {
    text-align: center;
    color: #e4cff7;
    margin-top: 20px;
    text-decoration: underline;
    font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
    text-align: center;
    text-shadow: #51c9ee 0 0 10px;
}
.search{
    align-items: center;

    text-decoration: #e6dfdf solid;
    display: flexbox;

}

.srch{
    padding: 10px;
    border: 2px solid rgb(52, 5, 96);
    border-radius: 5px;
    outline: invert;

}

.btn{
    background-color: #00aaff;
    padding: auto;
    color: #000;
    cursor: pointer;
    border: none;
    border-radius: 5px;
    transition: 0.5s;

}
.button:hover{
    color: darkblue;
    background-color: #00ccff;
    transform: scale(2);


}

.btn:active{
    transform: scale(0.8);
}



p {
    font-family: Arial, sans-serif;
}

#leftnav {
    float: left;
    width: 150px;
    padding: 20px;
    background-color: rgba(1, 58, 115, 0.521);
    min-height: 40px;
    position: sticky;
    top: 20px;
    margin: 30px 20px 20px 0;
    border-radius: 8px;
}

#leftnav ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
}

#leftnav li {
    margin-bottom: 3px;
}

#leftnav a {
    margin: 5px 0;
    display: block;
    padding: 10px;
    border-radius: 8px;
    text-decoration: none;
    background-color: rgba(87, 166, 255, 0.2);
    color: #ffffff;
    transition: all 0.3s, color 0.3s;
}

#leftnav a:link {
    color: #c042e7;
    text-decoration: dashed underline rgb(108, 43, 43);
}

#leftnav a:visited {
    color: #26d3ea;
}

#leftnav a:hover {
    background-color: rgba(101, 55, 208, 0.6);
    color: #ffe9a8;
}

#leftnav a:active {
    background-color: rgba(236, 68, 68, 0.8);
    color: #430101;
}

#leftnav a.active {
    background-color: rgba(4, 91, 142, 0.85);
    color: #000000;
    font-weight: bold;
}

.topnav {
    background-color: #3219c2c3;
    text-align: center;
    padding: 10px 0;
    position: sticky;
    top: 0;
    border-radius: 8px;
}

.topnav a {
    color: rgb(235, 204, 124);
    text-decoration: none;
    padding: 10px 20px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: inline-block;
    margin: 0 10px;
    border-radius: 5px;
    transition: all 0.3s, color 0.3s;
}

.topnav a:link {
    color: #d2ff56;
    text-decoration: dashed underline;
}

.topnav a:visited {
    color: #ecd1fc;
}

.topnav a:hover {
    background-color: #3bdbf7cb;
    color: #093832;
    text-decoration: underline;
}

.topnav a:active {
    background-color: #da9ddacb;
    color: #b043e2;
    text-decoration: underline;
}

.topnav a.active {
    background-color: #4753f492;
    color: #b4fca0;
    font-weight: bold;
    text-decoration: rgb(60, 230, 230) underline;
}

a:focus,
a:focus-visible {
    outline: 3px solid #ffd369;
    outline-offset: 2px;
}

.button {
    display: inline-block;
    padding: 10px 20px;
    background-color: #63adee;
    color: rgb(5, 5, 5);
    text-decoration: rgb(253, 252, 251) underline;
    border-radius: 5px;
    margin-top: 10px;
    margin-left: 50px;
}

.button:hover {
    background-color: #6575ff;
    color: white;
}

main {
    margin: 30px auto ;
    background-size: cover;
    background-image: linear-gradient(to bottom, rgba(3, 3, 3, 0.5), rgba(0, 0, 0, 0.5)), url("images/wall2.jpg");
    padding: 20px;
    background-position: center;
    text-align: justify;
    font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
}

section {
    border: 1px double #68c4fa;
    padding: 20px;
    border-radius: 8px;
    box-shadow: #013e66 0 0 20px;
    color: #e9e2c8;
    margin: 50px 10px 60px 70px;
    background-color: #0a0c25;
    font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
}

.glow {
    color: #5d78ff;
    text-shadow: 0 0 5px #51c9ee;
}

.hero {
    margin-bottom: 1.5rem;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.logo {
    width: 50px;
    height: 50px;
    margin-left: 20px;
}

.section-grid{
    display:flex;
    flex-wrap:wrap;
    gap:20px;
    margin:30px 10px 60px 70px;
    grid-template-columns: repeat(4,1fr);
}

.section-grid h2{
    flex:1 1 100%;
    margin:0 0 10px 0;
    text-align:center;
}

.card{
    flex:1 1 280px;
    max-width:350px;
    background:rgba(255,255,255,0.12);
    border:1px solid rgba(255,255,255,0.25);
    backdrop-filter:blur(12px);
    border-radius:18px;
    box-shadow:0 8px 32px rgba(0,0,0,0.35);
    padding:20px;
    color:white;
}





table {
    width: 80%;
    margin: 30px auto;
    padding: 10px;
    vertical-align: top;
    border-collapse: collapse;
    font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
    box-shadow: #783feb 0 0 20px;
    border-radius: 8px;
    border: #03375a double 3px;
    overflow: hidden;
}

caption {
    font-size: 30px;
    margin: 10px 0;
    padding: 10px;
    color: #bcccec;
    text-shadow: 1px 1px 4px rgba(203, 240, 255, 0.623);
}

thead tr:first-child {
    background-color: #301c90;
    color: rgb(199, 238, 246);
    text-align: center;
    font-size: medium;
}

thead th,
tbody th,
tbody td,
tfoot td {
    padding: 12px;
    border: 1px solid #4f79a3;
}

tbody th {
    font-weight: bold;
    color: #f2ab5a;
    text-align: left;
}

tfoot tr:last-child {
    background-color: #035074;
    color: #d6e8ff;
    text-align: center;
}

tbody td:last-of-type {
    color: #570683;
    font-weight: bold;
    text-align: center;
    font-size: small;
}

tbody tr:nth-of-type(even) {
    background-color: #c9dcec;
}

tbody tr:nth-of-type(odd) {
    background-color: #d8d4e3;
}

.form-section {
    margin-top: 40px;
}

.form-section h2 {
    text-align: center;
    margin-bottom: 25px;
    color: #9edbff;
}

.contact-form {
    max-width: 800px;
    margin: 0 auto;
}

fieldset {
    border: 2px solid #5ec8ff;
    border-radius: 12px;
    padding: 20px;
    background-color: rgba(255, 255, 255, 0.08);
    margin-bottom: 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

legend {
    padding: 0 10px;
    font-weight: bold;
    color: #9edbff;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.full-width {
    grid-column: 1 / -1;
}

.contact-form label {
    display: block;
    margin-bottom: 6px;
    font-weight: bold;
}

.group {
    margin: 0 0 10px 0;
    font-weight: bold;
    color: #cceeff;
}

.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form input[type="password"],
.contact-form input[type="date"],
.contact-form input[type="color"],
.contact-form input[type="file"],
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #7dd3fc;
    border-radius: 8px;
    font-size: 1rem;
    background-color: #f8fbff;
    color: #000000;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: #00ccff;
    box-shadow: 0 0 8px #00ccff;
}

.option {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.option label {
    font-weight: normal;
    margin: 0;
}

.button-row {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.button-row input[type="submit"],
.button-row input[type="reset"] {
    background-color: #00aaff;
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 8px;
    font-size: 1rem;
    cursor: pointer;
}

.button-row input[type="submit"]:hover,
.button-row input[type="reset"]:hover {
    background-color: #0077aa;
}

footer {
    clear: both;
    text-align: center;
    padding: 15px;
    background-color: #09142b;
    color: #22ccf278;
    font-size: 0.95rem;
    font-style: italic;
}

@media (min-width: 480px) {
    body {
        font-size: 1rem;
    }
}

@media (min-width: 768px) {
    .topnav {
        display: flex;
        justify-content: center;
        flex-wrap: wrap;
        gap: 10px;
    }

    .card {
        flex: 1 1 calc(50% - 20px);
    }
}

@media (min-width: 1024px) {
    .card {
        flex: 1 1 calc(33.33% - 20px);
    }
}

@media (max-width: 767px) {
    #wrapper {
        width: 95%;
        padding: 10px;
    }

    #leftnav {
        float: none;
        width: 100%;
        position: static;
        margin: 20px 0;
    }

    main {
        margin: 20px 0;
    }

    section {
        margin: 20px 0;
    }

    .section-grid {
        margin: 20px 0;
    }

    .button {
        margin-left: 0;
    }

    header {
        margin: 10px 0;
    }

    fieldset {
        grid-template-columns: 1fr;
    }

    .full-width {
        grid-column: auto;
    }
}


.dropdown {
    float: left;
    overflow: hidden;
}

.dropdown .drpbtn {
    font-size: 16px;
    
    color: rgb(38, 33, 38);
    padding: 14px 18px;
    background-color: rgb(31, 190, 238);
    font-family: Arial, Helvetica, sans-serif;
    margin: 0;
    
}

.dropdown:hover .drpbtn{
    background-color: #1476c1;

}

.dropdown-menu{
    display: none;
    position: absolute;
    background-color: #22a3f4;
    min-width: 180px;
    z-index: 1;
}

.dropdown-menu a{
    float: none;
    color: rgb(9, 9, 9);
    padding: 12px 16px;
    display: block;
    text-align: left;
}

.dropdown-menu a:hover {
    background-color: #63a4f5;
}

.dropdown:hover .dropdown-menu {
    display: block
}

audio,
video {
    display: block;
    margin: 25px auto;
    border: 2px solid #68c4fa;
    border-radius: 12px;
    background-color: #0c263b;
    padding: 10px;
}

audio {
    width: 320px;
}

video {
    width: 700px;
    max-width: 100%;
    height: auto;
}


.galaxy {
    float: right;
    width: 230px;
    height: 170px;
    object-fit: cover;
    margin: 10px 0 15px 25px;
    border-radius: 10px;
    border: 2px solid #cfe4ee;
}
.galaxy:hover {
    opacity: 1;
    box-shadow: 3px 3px 3px #faf8db;
    transform: scale(1.0);
}





.star-img{
    max-width: 850px;
    margin: 0 auto;
    padding: 30px 15px;
}

.star-img{
    display: grid;
    grid-template-columns: repeat(2, 260px);
    gap: 20px;
    justify-content: center;
}

.star-img figure{
    width: 260px;
    background: #cfcfd6;
    margin: 0;
    overflow: hidden;
}

.star-img img{
    width: 100%;
    height: 180px;
    object-fit: cover;
    display: block;
}

.star-img figcaption{
    padding: 10px;
    text-align: center;
    font-size: 0.9rem;
    color: #111;
}

@media (max-width:768px){
    .star-img{
        grid-template-columns: 1fr;
    }

    .star-img figure{
        margin: auto;
    }
}



figure {
    position: relative;
   
    opacity: 0.75;
    margin: 1em;
    background-color: #fff;
    color: rgba(0, 0, 0, 0);
    font-size: medium;
   
}

figure:hover {
    opacity: 1;
    z-index: 999;
    box-shadow: 3px 3px 3px #333;
    color: rgba(0, 0, 0, 1);
    transform: scale(1.2);
}

.show{
    width: 180px;
    height: 180px;

    object-fit: cover;
    grid-template-columns: repeat(2);
    margin: 25px;
    display: inline-block;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.show:hover{
    transform: scale(2.05) skew(1deg);
    box-shadow: 0 0 25px rgb(204, 243, 243);
}