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

body, ul, p {
    list-style: none;
    font-family: 'Kanit', sans-serif;
}

body {
    background-color: rgba(255, 255, 255, 0.5);
    user-select: none;
}

body * {
    -webkit-touch-callout: none;
}

header {
    background-color: rgba(255, 255, 255, 0.3);
    margin-top: 15px;
    width: 100%;
    border-bottom: 2.5px solid #BDBDBD;
    z-index: 1000;
    border-radius: 12px;
    transition: all 0.4s ease;
}

header:hover {
    background-color: rgba(255, 255, 255, 0.5);
    transform: scale(1.02);
}

header ul.nav-tabs {
    display: flex;
}

header ul.nav-tabs li {
    margin: 4px 10px;
    transition: transform 0.2s ease;
}

header ul.nav-tabs li:hover {
    transform: translateY(-3px);
}

header ul.nav-tabs li a {
    color: #000;
    text-transform: uppercase;
    font-size: 14px;
    transition: color 0.3s ease, border-bottom 0.3s ease;
}

header ul.nav-tabs li a:hover,
header ul.nav-tabs li a.active {
    text-decoration: none;
    color: #4a86c4;
    border-bottom: 5px solid #4a86c4;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

@media screen and (max-width: 750px) {
    header ul.nav-tabs {
        overflow-x: auto;
        flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    header ul.nav-tabs::-webkit-scrollbar {
        display: none;
    }

    header ul.nav-tabs li {
        flex: 0 0 auto;
        margin: 0 5px;
    }

    header ul.nav-tabs li a {
        font-size: 14px;
        padding: 10px 8px;
        white-space: nowrap;
        min-width: 80px;
        text-align: center;
    }

    header ul.nav-tabs li a.active {
        background-color: rgba(0, 123, 255, 0.2);
        border-radius: 5px;
    }
}