/* === Variables === */
:root {
    --color-bg: #0d1117;
    --color-text: #e6edf3;
    --color-text-muted: #8b949e;
    --color-accent: #58a6ff;
    --color-border: #30363d;
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
    --transition: 0.2s ease;
}

/* === Reset === */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
}

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

a:hover {
    color: var(--color-text);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* === Layout === */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 4rem 1.5rem;
}

/* === Hero === */
.hero {
    display: flex;
    align-items: center;
    gap: 2rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 3rem;
}

.hero__photo {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--color-border);
}

.hero__content {
    flex: 1;
}

.hero__name {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.hero__title {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    margin-bottom: 1rem;
}

.hero__links {
    display: flex;
    gap: 1rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: var(--color-border);
    color: var(--color-text);
    transition: background-color var(--transition), box-shadow var(--transition);
}

.social-link:hover {
    background-color: var(--color-accent);
    box-shadow: 0 0 15px rgba(88, 166, 255, 0.4);
}

.social-icon {
    width: 24px;
    height: 24px;
}

/* === Articles === */
.articles__heading {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.articles__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.article-card {
    display: block;
    padding: 1.5rem;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    background-color: transparent;
    transition: border-color var(--transition), background-color var(--transition);
}

.article-card:hover {
    border-color: var(--color-accent);
    background-color: rgba(88, 166, 255, 0.05);
}

.article-card__title {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.article-card__date {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.articles__fallback {
    text-align: center;
    padding: 2rem;
}

.articles__fallback a {
    font-size: 1.1rem;
}

/* === Footer === */
.footer {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    opacity: 0.3;
    transition: opacity var(--transition);
}

.footer:hover {
    opacity: 0.6;
}

.footer__logo {
    width: 32px;
    height: auto;
}

/* === Responsive === */
@media (max-width: 768px) {
    .container {
        padding: 2rem 1rem;
    }

    .hero {
        flex-direction: column;
        text-align: center;
    }

    .hero__photo {
        width: 120px;
        height: 120px;
    }

    .hero__name {
        font-size: 2rem;
    }

    .hero__links {
        justify-content: center;
    }

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