:root {
    --header-bg: #fff;
    --body-bg: #f1f1f1;
    --brand-dark: #e30613;
    --brand-light: #fb777f;
    --footer-bg: #fff;
    --light-color: #fff;
    --scrollbar-bg: #ccc;
    --scrollbar-hover-bg: #bfbfbf;
    --footer-color: #888;
    --project-bg: #fff;
    --project-br: #ececec;
    --descr-color: #444;
    --btn-hover-bg: #fa3c47;
}

* {
    box-sizing: border-box;
}

::selection {
    background: var(--brand-light);
    color: var(--light-color);
}

::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background-color: transparent;
}

::-webkit-scrollbar-thumb {
    background-color: var(--scrollbar-bg);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background-color: var(--scrollbar-hover-bg);
}

html,
body,
.app {
    height: 100%;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Rubik', sans-serif;
    font-size: 16px;
    line-height: 1.4;
    background: var(--body-bg);
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}

p {
    margin: 0;
}

.app {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.main {
    flex-grow: 1;
    padding: 50px 0 30px;
}

.container {
    width: 100%;
    max-width: 960px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 20px;
    padding-right: 20px;
}

.header {
    background: var(--header-bg);
    height: 60px;
    border-bottom: dashed;
    border-image-slice: 1;
    border-image-source: linear-gradient(270deg,var(--brand-dark),var(--brand-light));
    border-width: 4px;
    display: flex;
    align-items: center;
    color: var(--light-color);
    flex: 0 0 auto;
}

.footer {
    padding: 12px 0;
    font-size: 12px;
    background: var(--footer-bg);
    color: var(--footer-color);
    text-align: center;
}

.logo {
    display: flex;
    gap: 6px;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    text-transform: uppercase;
    font-family: 'Josefin Sans', sans-serif;
    color: var(--brand-dark);
}

.fitness-icon {
    background: center / contain no-repeat url(./images/fitness.svg);
}

.pdd-icon {
    background: center / contain no-repeat url(./images/pdd.svg);
}

.eng-icon {
    background: center / contain no-repeat url(./images/eng.svg);
}

.esp-icon {
    background: center / contain no-repeat url(./images/esp.svg);
}

.de-icon {
    background: center / contain no-repeat url(./images/de.svg);
}

.fr-icon {
    background: center / contain no-repeat url(./images/fr.svg);
}

.games-icon {
    background: center / contain no-repeat url(./images/games.svg);
}

.arrow-right-icon {
    display: block;
    width: 20px;
    height: 20px;
    -webkit-mask: url(./images/arrow-right.svg) center / contain no-repeat;
    mask: url(./images/arrow-right.svg) center / contain no-repeat;
    background-color: var(--brand-dark);
    transition: 550ms;
}

.logo-icon {
    display: block;
    width: 33px;
    height: 33px;
    background: center / contain no-repeat url(./images/logo.svg);
}

.projects {
    display: grid;
    grid-template-columns: 1fr;
    gap: 50px 20px;
}

.project {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    background: var(--project-bg);
    border-radius: 14px;
    padding: 30px 20px 20px 20px;
    border: 1px solid var(--project-br);
    text-decoration: none;
    transition: 350ms linear;
    animation: anim-fade 1000ms ease-in-out both;
}

@keyframes anim-fade {
    0% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}

.project__wrap {
    position: absolute;
    top: -32px;
    background: var(--light-color);
    border-radius: 50%;
}

.project__icon {
    display: block;
    width: 50px;
    height: 50px;
    margin: 0 auto;
}

.project__title {
    margin: 0 0 10px;
    font-weight: 700;
    color: var(--brand-light);
    font-size: 18px;
    line-height: 1;
    text-transform: uppercase;
}

.project__descr {
    flex-grow: 1;
    margin: 0 0 20px;
    color: var(--descr-color);
    font-size: 14px;
}

.project__link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    height: 40px;
    border: 2px solid var(--brand-dark);
    padding: 0 30px;
    font-size: 13px;
    text-decoration: none;
    border-radius: 35px;
    transition: 550ms ease-in-out;
    color: var(--brand-dark);
    text-transform: uppercase;
    font-weight: 700;
    line-height: 1;
}

.project__link:hover {
    box-shadow: inset 265px 0.3em var(--brand-dark);
    color: var(--light-color);
}

.project__link:hover .arrow-right-icon {
    background: var(--light-color);
}

.project__link:active {
    transform: scale(0.98);
}

@media (min-width: 640px) {
    .main {
        padding: 60px 0 30px;
    }

    .projects {
        grid-template-columns: 1fr 1fr;
    }
}

@media (min-width: 768px) {
    .projects {
        grid-template-columns: 1fr 1fr 1fr;
    }

    .project {
        padding: 44px 22px 22px;
    }

    .project__icon {
        width: 65px;
        height: 65px;
    }
}

/* темная тема */
@media (prefers-color-scheme: dark) {
    :root {
        --body-bg: #282a2e;
        --dark-color: #ebebeb;
        --header-bg: #34363c;
        --brand-dark: #fa3c47;
        --descr-color: #ddd;
        --project-bg: #34363c;
    }

    body {
        background: var(--body-bg);
        color: var(--dark-color);
    }

    .header {
        background: var(--header-bg)
    }

    .logo {
        color: var(--brand-dark);
    }

    .footer {
        background: var(--header-bg);
    }

    .project {
        background: var(--project-bg);
        border: 1px solid #232323;
    }

    .project__title {
        color: var(--brand-dark);
    }

    .project__descr {
        color: var(--descr-color);
    }

    .project__link {
        border-color: var(--brand-dark);
        color: var(--brand-dark);
    }

    .project__link:hover {
        box-shadow: inset 265px 0.3em var(--brand-dark);
    }

    .arrow-right-icon {
        background-color: var(--brand-dark);
    }
}