:root
{
    --background-color: #481e1f;
    --main-background-color: #2b2628;
    --game-card-background-color: #1e1e1e;
    --white-color: #fff;
    --neon-color: rgba(255, 105, 195, 0.7);
    --neon-blue-color: rgba(0, 255, 255, 0.7);
    --neon-force-color: rgba(255, 0, 255, 0.7);
    --neon-blue-force-color: rgba(100, 149, 237, 0.7);
    --fade-red-color: rgb(99 55 59);
    --fade-blue-color: rgb(51 72 73);
    --text-color-red: #ff4d4d;
    --text-color-blue: #15d8fd;
    --text-color-orange: #e5bc88;
    --text-color-gray: #6e6b6b;
    --neon-gradient: linear-gradient(45deg, var(--neon-color), var(--neon-blue-force-color));
    --neon-blue-gradient: linear-gradient(45deg, var(--neon-blue-color), var(--neon-force-color));
    --player-gradient: linear-gradient(45deg, var(--fade-red-color), var(--fade-blue-color));
}

.background-color
{
    background-color: var(--background-color);
}

.main-background-color
{
    background-color: var(--main-background-color);
}

.game-card-background-color
{
    background-color: var(--game-card-background-color);
}

.neon-color
{
    color: var(--neon-color);
}

.neon-blue-color
{
    color: var(--neon-blue-color);
}

.neon-force-color
{
    color: var(--neon-force-color);
}

.neon-blue-force-color
{
    color: var(--neon-blue-force-color);
}

.text-color-red
{
    color: var(--text-color-red);
}

.text-color-blue
{
    color: var(--text-color-blue);
}

.text-color-orange
{
    color: var(--text-color-orange);
}

.text-color-gray
{
    color: var(--text-color-gray);
}

.neon-gradient
{
    background: var(--neon-gradient);
}

.neon-blue-gradient
{
    background: var(--neon-blue-gradient);
}


html
{
    font-size: 22px;
    position: fixed;
    overflow: hidden;
}

.neon, .neon-blue
{
    position: relative;
}

.neon::before, .neon-blue::before
{
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: var(--neon-gradient);
    .neon-blue & {
        background: var(--neon-blue-gradient);
    }
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.neon:hover, .neon:focus, .neon:has(:focus)
{
    box-shadow: 0px 0px 20px 5px var(--neon-color);
}

.neon-force
{
    box-shadow: 0px 0px 20px 5px var(--neon-color);
}

.neon-blue-force
{
    box-shadow: 0px 0px 20px 5px var(--neon-blue-color);
}

.neon-animate
{
    animation: neon 1.5s infinite alternate;
}

.neon-blue-animate
{
    animation: neon-blue 1.5s infinite alternate;
}

@keyframes neon
{
    0%
    {
        box-shadow: 0px 0px 20px 5px var(--neon-color);
    }
    100%
    {
        box-shadow: 0px 0px 20px 5px var(--neon-blue-force-color);
    }
}

@keyframes neon-blue
{
    0%
    {
        box-shadow: 0px 0px 20px 5px var(--neon-blue-color);
    }
    100%
    {
        box-shadow: 0px 0px 20px 5px var(--neon-force-color);
    }
}

body {
    background-color: var(--background-color);
    font-family: 'Roboto', sans-serif;
    color: white;
    position: fixed;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.sidebar {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 20px;
    border-radius: 1.5rem;
    height: 100%;
}

.sidebar .logo
{
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 30px;
    text-wrap: nowrap;
}

.sidebar .nav-link
{
    color: var(--white-color);
    margin: 15px 0;
    font-size: 18px;
}

.sidebar .nav-link.active
{
    color: var(--text-color-red);
}

.content
{
    padding: 20px;
    overflow-y: auto;
}

::-webkit-scrollbar
{
    margin-top: 10px;
    margin-bottom: 10px;
    width: 8px;
    background-color: var(--main-background-color);
}

::-webkit-scrollbar-thumb
{
    background: var(--neon-gradient);
    border-radius: 10px;
    border: 2px solid var(--main-background-color);
}

::-webkit-scrollbar-thumb:hover
{
    background: var(--neon-gradient);
    box-shadow: 0 0 10px var(--neon-blue-color);
}

.input-group
{
    border-radius: 0.5rem;
}

input, button
{
    border: 0 !important;
    background-color: transparent !important;
    color: var(--white-color) !important;
}

button:hover
{
    background: var(--text-color-red);
}

a
{
    text-decoration: none;
    color: var(--text-color-blue);
}

input::placeholder
{
    color: #888 !important;
    opacity: 1 !important;
}

.input-group-text
{
    border: 0;
    background: transparent;
    color: #dd51b9;
    border-left: 1px solid #443835;
}

.container
{
    background: var(--main-background-color);
    border-radius: 2rem;
    height: 100%;
}

.game-card
{
    background-color: var(--game-card-background-color);
    border-radius: 20px;
    padding: 20px;
}

main
{
    display: flex;
    justify-content: center;
}

.preloader
{
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100vw;
    height: 100vh;
    background-color: var(--background-color);
    opacity: 0;
    animation: fadeIn 5s forwards;
}

.pong-ball
{
    width: 50px;
    height: 50px;
    border: 4px solid #00ff99;
    border-radius: 50%;
    box-shadow: 0 0 15px #00ff99, 0 0 30px #00ff99, 0 0 60px #00ff99, 0 0 100px #00ff99;
    animation: pong 1.5s ease-in-out infinite;
}

@keyframes pong
{
    0%
    {
        transform: translateX(-100px);
        box-shadow: 0 0 15px #00ff99, 0 0 30px #00ff99, 0 0 60px #00ff99, 0 0 100px #00ff99;
    }
    50%
    {
        transform: translateX(100px);
        box-shadow: 0 0 15px #00ffcc, 0 0 30px #00ffcc, 0 0 60px #00ffcc, 0 0 100px #00ffcc;
    }
    100%
    {
        transform: translateX(-100px);
        box-shadow: 0 0 15px #00ff99, 0 0 30px #00ff99, 0 0 60px #00ff99, 0 0 100px #00ff99;
    }
}

@keyframes fadeIn
{
    0%
    {
        opacity: 0;
    }
    100%
    {
        opacity: 1;
    }
}

.modal-content
{
    background: var(--main-background-color);
    min-width: 300px;
}

@media (max-width: 768px)
{
    html
    {
        font-size: 18px;
    }
}

.center
{
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.nav-link:hover
{
    color: var(--text-color-orange);
    transition: 0.5s;
    transform: scale(1.5);
}