:root {
    color-scheme: light dark;
    --max-width: 48rem;
    --accent: #1f6f5c;
}

* {
    box-sizing: border-box;
}

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

body {
    margin: 0;
    font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
    line-height: 1.6;
}

.site-header,
.site-footer,
main {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 1rem 1.5rem;
}

.site-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #ddd;
}

.site-header__home {
    font-weight: 700;
    text-decoration: none;
    color: inherit;
}

.site-header__nav a {
    margin-left: 1rem;
    color: var(--accent);
}

.site-footer {
    margin-top: 3rem;
    border-top: 1px solid #ddd;
    font-size: 0.85rem;
    color: #666;
}

a {
    color: var(--accent);
}

.blog-list {
    list-style: none;
    padding: 0;
}

.blog-list li {
    margin-bottom: 1.5rem;
}

.blog-list time {
    display: block;
    font-size: 0.85rem;
    color: #666;
}