* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.65;
    color: #666;
    background: #fff;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease, opacity 0.2s ease;
}

a:hover {
    text-decoration: underline;
}

.layout {
    display: grid;
    grid-template-columns: 120px minmax(0, 1fr);
    column-gap: 20px;
    row-gap: 72px;
    max-width: 1080px;
    margin: 0 auto;
    padding: 88px 64px 64px;
    min-height: 100vh;
}

.sidebar {
    grid-column: 1;
    grid-row: 1 / span 2;
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
    position: sticky;
    top: 88px;
    align-self: start;
}

.site-nav {
    display: flex;
    flex-direction: column;
    gap: 1.35rem;
    font-size: 0.95rem;
}

.site-nav a {
    color: #666;
}

.site-nav a:hover,
.site-nav a.active {
    color: #000;
}

.page-content {
    grid-column: 2;
    max-width: 720px;
    display: flex;
    flex-direction: column;
    gap: 1.6rem;
}

.page-content h2 {
    font-size: 1.05rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.page-content p {
    font-size: 1.03rem;
    line-height: 1.5;
}

.page-content h3 {
    font-size: 1.05rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-bottom: 0.85rem;
}

.project + .project {
    margin-top: 1rem;
}

.page-content a {
    color: #000;
}

.page-content a:hover {
    color: #000;
}

.site-footer {
    grid-column: 2;
    justify-self: start;
    align-self: end;
    display: flex;
    justify-content: flex-end;
    padding-top: 32px;
    width: 100%;
    max-width: 720px;
}

.social-links {
    display: flex;
    gap: 1.8rem;
    font-size: 0.9rem;
}

.social-links a {
    color: #666;
}

.social-links a:hover {
    color: #000;
}

@media (max-width: 960px) {
    .layout {
        grid-template-columns: 120px minmax(0, 1fr);
        column-gap: 28px;
        padding: 72px 48px 100px;
    }
}

@media (max-width: 820px) {
    .layout {
        grid-template-columns: 1fr;
        row-gap: 48px;
        padding: 64px 32px 88px;
    }

    .sidebar {
        position: static;
        grid-row: auto;
        flex-direction: row;
        flex-wrap: wrap;
        gap: 1.25rem 1.75rem;
    }

    .site-nav {
        flex-direction: row;
        gap: 1.25rem 1.75rem;
    }

    .page-content {
        grid-column: 1;
    }

    .site-footer {
        grid-column: 1;
        justify-content: flex-start;
    }
}

@media (max-width: 520px) {
    .layout {
        padding: 56px 24px 72px;
    }

    .social-links {
        gap: 1.4rem;
        flex-wrap: wrap;
    }
}