:root {
    --card-shadow: #0e0d0d;
}

html,
body {
    background-color: rgb(15, 15, 15);
    font-family: JetBrains Mono, monospace;
    color: #e4bb68;
}

#sidebar {
    background-color: rgb(15, 15, 15);
    color: white;
    font-weight: bold;
}

.navbar .container-fluid {
    margin: 20px 10px;
}

.navbar-toggler {
    border: none;
    outline: none;
}

.nav-link {
    text-decoration: none;
    color: #727272;
}

.navbar-toggler:focus,
.navbar-toggler:active,
navbar-toggler:focus-visible {
    box-shadow: none;
    border: none;
}

.infos {
    margin: 80px;
}

.cards {
    perspective: 600px !important;
    margin-top: 6rem;
    display: flex;
    justify-content: start;
    align-items: start;
    flex-wrap: wrap;
}

.card {
    animation-name: rotate;
    animation-duration: 3s;
    animation-timing-function: ease-in-out;
    animation-iteration-count: infinite;
    background-color: var(--card-bg);
    border-radius: 10px;
    color: hsl(0, 0%, 100%);
    width: 200px;
    height: 300px;
    transform: translate3d(0, 0, 0);
    margin: 30px 25px 0 0;
}

.card__title {
    font-size: 20px;
    font-family: 'Open Sans', sans-serif;
}

.card__subtitle {
    margin-top: 30px;
}

.card_skills {
    display: flex;
    flex-wrap: wrap;
    margin: 20px 0 20px 0;
}

.card_skills i {
    margin: 15px;
    font-size: 25px;
}

.card__content {
    margin: 20px
}

.card__buttons {
    display: flex;
    justify-content: center;
}

.btn {
    padding: 20px 50px 20px 50px;
    position: fixed;
    bottom: 0;
    margin: 20px;
    background-color: var(--card-btn);
    transition: background-color 0.3s;
    color: #727272;
    border-radius: 6px;
}

.btn:hover {
    background-color: var(--card-btnh);
    transition: background-color 0.3s,
        color 0.3s;
    color: var(--card-btnch);
    cursor: pointer;
}

.download-section {
    color: #fff;
    margin-top: 100px;
}

.download-section h2 {
    font-size: 36px;
    margin-bottom: 20px;
}

.download-section p {
    font-size: 13px;
    margin-bottom: 30px;
}

.btn-download {
    display: inline-block;
    background-color: #c09236;
    color: white;
    font-size: 20px;
    text-decoration: none;
    padding: 15px 30px;
    border-radius: 5px;
    transition: all 0.3s ease;
    margin: 7px 7px 0 0;
}

.btn-download:hover {
    background-color: #d4ad5f;
    color: white;
}


@keyframes rotate {

    from,
    to {
        box-shadow:
            0 0 0 var(--card-shadow),
            0.1rem 0 0 var(--card-shadow),
            -0.2rem 0 0.75rem 0 hsla(0, 0%, 0%, 0.3);
    }

    25%,
    75% {
        box-shadow:
            0 0 0 var(--card-shadow),
            0 0 0 var(--card-shadow),
            -0.25rem -0.05rem 1rem 0.15rem hsla(0, 0%, 0%, 0.3);
    }

    50% {
        box-shadow:
            -0.1rem 0 0 var(--card-shadow),
            0 0 0 var(--card-shadow),
            -0.3rem -0.1rem 1.5rem 0.3rem var(--card-shadow);
    }
}