:root {
    --main-color : #b40000;
    --second-color: #747474;
    --white-space: #000000;
    --font-color: #fff;

    --red:#b40000;
    --green: #2ad200;
    --blue: #007ac6;
    --yellow: #ccd300;
    --white: #fff;

    --font-3xl: 40px;
    --font-xxl: 35px;
    --font-xl: 30px;
    --font-lg: 25px;
    --font-m: 20px;
    --font-sm: 16px;
    --font-xs: 14px;
    --font-xxs: 12px;
    --font-3xs: 10px;
}
header {
    width: 100vw;
    height: 9vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1vh 2vw;
    position: fixed;
    z-index: 10;
    top: 0;
    border-bottom: solid 1px var(--white);
    backdrop-filter: blur(20px);
}
.brand {
    display: flex;
    align-items: center;
    gap: 0.5vw;
}
.brand img {
    width: 50px;
    height: 50px;
}
.brand span {
    font-size: var(--font-xl);
}
header ul {
    list-style: none;
    display: flex;
    gap: 2vw;
    align-items: center;
}
header ul .nav-link {
    cursor: pointer;
    transition: transform 0.2s ease-out;
}
header ul .nav-link:hover {
    text-shadow: 0px 0px 40px white;
    transform: translateY(-1vh);
}
header ul .nav-link:last-child:hover {
    transform: translateY(0px);
    transform: translateX(1vw);
}
header ul .nav-link.active {
    padding-left: 3px;
    border-left: solid 3px var(--red);
}
header button.menu-toggle {
    cursor: pointer;
    border: none;
    font-size: var(--font-xxl);
    display: none;
}
header button.menu-toggle.clicked {
    transition: transform 1.0s;
    animation: flip 0.5s forwards;
}
@keyframes flip {
    0% {
        transform: rotateY(0);
    } 50% {
        transform: rotateY(90deg);
    } 100% {
        transform: rotateY(180deg);
    }
}
ul.dropdown-navbar {
    background-color: var(--white-space);
    overflow: hidden;
    height: 100vh;
    width: 0vw;
    padding-top: 10vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: fixed;
    z-index: 5;
    top: 0;
    list-style: none;
    font-size: var(--font-lg);
    gap: 2vh;
    transition: width 0.7s cubic-bezier(1, -0.66, 0.09, 1.66);
}
ul.dropdown-navbar li.active {
    color: var(--main-color);
    border-bottom: solid 2px var(--main-color);
}

.button {
    background-color: transparent;
    border: solid 1px white;
    padding: 10px;
    border-radius: 20px;
    cursor: pointer;
    text-transform: capitalize;
    font-weight: bold;    
}
.button-outline-red {
    border-color: var(--red);
    color: var(--red);   
}
.button-outline-red:hover {
    text-shadow: 0px 0px 0px !important;
    background-color: var(--red);
    color: var(--font-color);
}
.red {
    color: var(--red);
}
body::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
body::-webkit-scrollbar-track {
    background: transparent;
    border-radius: 5px;
}
body::-webkit-scrollbar-thumb {
    background: var(--main-color);
    border-radius: 10px;
}
body::-webkit-scrollbar-thumb:hover {
    background: darkred;
}
::selection {
    background-color: var(--main-color); /* The background color of the selected text */
    color: var(--second-color); /* The color of the selected text */
}
::-moz-selection {
    background-color: #3399FF; /* The background color of the selected text */
    color: #FFFFFF; /* The color of the selected text */
}
@media screen and (max-width:600px) {
    header ul.tabs {
        display: none;
    }
    header button.menu-toggle {
        display: inline-block;
    }
    header > .brand > img {
        width: 40px;
        height: 40px;
    }
}
@media screen and (max-width:830px) {
    body::-webkit-scrollbar {
        width: 2px;
        height: 2px;
    }
}