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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #ffffff;
    background-color: #111a19;
}

/* header si nav */
header {
    background-color: #03fffba1;
    color: #ffffff;
    padding: 1rem 0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.4);
}


nav ul {
    list-style: none;
    text-align: center;
}

nav ul li {
    display: inline;
    margin: 0 15px;
}

nav ul li a {
    color: #fff;
    text-decoration: none;
    font-size: 1.1rem;
    transition: color 0.3s ease-in-out;
}

nav ul li a:hover {
    color: #00f7ff;
}

.main-section, .info-section, .istoric-section, .history-section, .future-section, .gallery-section, .resource-section, .table-section {
    padding: 2rem;
    margin: 1rem 0;
}

.main-section {
    background: url('img01.jpeg') no-repeat center center/cover;
    color: #ffffff;
    text-align: center;

    padding: 7rem 0;
    font-size: 45px;
}

.light{
    color: #ffffff;
    
}

.info-section, .resource-section, .contact-section, .istoric-section, .history-section, .future-section, .table-section {
    background-color: rgba(1, 236, 244, 0.116);
    box-shadow: 0 2px 5px rgb(0, 0, 0);
}

.img-section {
    text-align: center;
}

 
.gallery-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    padding: 1rem;
}

.gallery-container {
    width: 100%;
    height: 1s;
    border-radius: 5px;
}
   
.video-section {
    text-align: center;
}

div nav a:hover {
    color: #aaaaaa;
}

.tab {
    overflow: hidden;
    background-color: #729193;
}

.tab button {
    background-color: inherit;
    float: left;
    border: none;
    outline: none;
    cursor: pointer;
    padding: 14px 16px;
    transition: 0.3s;
    font-size: 17px;
    color:#ffffff;
}

.tab button:hover {
    background-color: rgb(69, 96, 98);
}

.tab button.active {
    background-color: rgb(69, 96, 98);
}

.tabcontent {
    display: none;
    padding: 6px 12px;
    border: 1px solid #ccc;
    border-top: none;
}

a {
    text-decoration: none;
    color: inherit;
    cursor: pointer;
}

footer {
    background-color:  #111a19;
    padding: 20px;
}