:root {
    --main-padding: 20px;
    --big-padding: 30px;
    --small-padding: 16px;
    --very-small-padding: 10px;

    --border-radius: 15px;

    --card-gap: 10px;

    --main-bg-color: #252526;
    --main-text-color: #fff;

    --card-bg-color: #1e1e1e;
    --card-text-color: #6b6b6b;
}

@font-face {
    font-family: "JetBrains Mono Regular";
    src: url(../fonts/JetBrainsMono-Regular.ttf);
    font-display: swap;
}

@font-face {
    font-family: "JetBrains Mono Bold";
    src: url(../fonts/JetBrainsMono-Bold.ttf);
    font-display: swap;
}

body {
    margin: 0;
    padding: 0;
    border: 0;
    font-family: "JetBrains Mono Regular";
    background-color: var(--main-bg-color);
    color: var(--main-text-color);
}

strong {
    font-family: "JetBrains Mono Bold";
}

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

h2,
p {
    margin: 0;
}

.container {
    display: flex;
    flex-direction: column;
    box-sizing: border-box;
    padding-left: var(--main-padding);
    padding-right: var(--main-padding);
    max-width: 1276px;
    min-height: 100dvh;
    margin: 0 auto;
}

.center-text {
    text-align: center;
}

.projects-grid {
    width: 100%;
}

.projects-grid > a:last-child .project-card {
    margin-bottom: 0;
}

.project-card {
    width: calc((100% - 20px) / 2);
    margin-bottom: 20px;
    box-sizing: border-box;
    position: relative;
    gap: var(--card-gap);
    padding: var(--big-padding);
    border-radius: var(--border-radius);
    background-color: var(--card-bg-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

.project-card > * {
    margin-bottom: var(--card-gap);
}

.project-card > *:last-child {
    margin-bottom: 0;
}

.exp-grid {
    width: 100%;
}

.exp-grid > .exp-card:last-child {
    margin-bottom: 0;
}

.exp-card {
    width: 100%;
    margin-bottom: 20px;
    box-sizing: border-box;
    position: relative;
    gap: var(--card-gap);
    padding: var(--big-padding);
    border-radius: var(--border-radius);
    background-color: var(--card-bg-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.exp-card > * {
    margin-bottom: var(--card-gap);
}

.exp-card > *:last-child {
    margin-bottom: 0;
}

.exp-grid > a:last-child .exp-card {
    margin-bottom: 0;
}

.card-title {
    display: flex;
    gap: var(--very-small-padding);
    align-items: center;
    justify-content: space-between;
}

.card-img {
    width: 100%;
    border-radius: var(--border-radius);
}

.card-article-block {
    font-family: "JetBrains Mono Bold";
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--card-gap);
    font-size: 13px;
    margin-right: auto;
    text-transform: uppercase;
}

.card-article {
    background-color: rgba(62, 64, 71, 1);
    border: 10px solid rgba(62, 64, 71, 1);
    border-radius: 80rem;
}

.card-date {
    color: var(--card-text-color);
}

header {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: space-around;
    gap: var(--card-gap);
    border: 1px solid var(--card-text-color);
    background-color: var(--card-bg-color);
    border-radius: 0 0 var(--border-radius) var(--border-radius);
    border-top: none;
    padding: var(--main-padding);
}

main {
    flex: 1;
    position: relative;
}

footer {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: space-around;
    gap: var(--card-gap);
    border: 1px solid var(--card-text-color);
    background-color: var(--card-bg-color);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    border-bottom: none;
    padding: var(--main-padding);
    margin-top: var(--main-padding);
}

.icon-link {
    display: flex;
    gap: 5px;
    align-items: center;
    cursor: pointer;
}

header .icon-link {
    position: relative;
    padding-bottom: 10px;
    padding-left: 10px;
    padding-right: 10px;
}

header .icon-link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 3px;
    background-color: #3498db;
    border-radius: 2px;
    transform: scaleX(0);
    opacity: 0;
    transform-origin: center;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

header .icon-link.active::after {
    transform: scaleX(1);
    opacity: 1;
}

.content-section {
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    visibility: hidden;
    transition: opacity 0.5s ease, visibility 0.5s;
}

.content-section.active {
    opacity: 1;
    max-height: 100%;
    visibility: visible;
}

.section-paragraph {
    margin-bottom: var(--main-padding);
}

@media screen and (max-width: 1276px) {
    .container {
        max-width: 996px;
    }
}

@media screen and (max-width: 1000px) {
    .container {
        max-width: 100%;
    }
}

@media screen and (max-width: 640px) {
    .container {
        padding-left: var(--small-padding);
        padding-right: var(--small-padding);
    }

    .project-card {
        width: 100%;
    }

    .exp-card {
        width: 100%;
    }
}