:root {
    --bg: #fff;
    --text: #161a1a;
    --muted: #687272;
    --accent: #008f87;
    --border: #dfe5e4;
    --code-bg: #f3f6f5;
    --max-width: 720px;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
    font-size: 15px;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    text-rendering: optimizeLegibility;
}

body {
    margin: 0;
}

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

a:hover {
    text-decoration: underline;
}

.container {
    width: min(calc(100% - 2rem), var(--max-width));
    margin-inline: auto;
}

body > header {
    border-bottom: 1px solid var(--border);
}

body > header .container {
    display: flex;
    align-items: center;
    min-height: 3.5rem;
}

body > header a {
    color: var(--text);
    font-weight: 700;
}

main.container {
    padding-block: 3rem;
}

body > footer {
    border-top: 1px solid var(--border);
}

body > footer .container {
    padding-block: 1.25rem;
    color: var(--muted);
    font-size: 0.8rem;
}

/* Homepage */

.intro {
    margin-bottom: 3rem;
}

.intro h1 {
    margin: 0 0 0.75rem;
    font-size: 2rem;
    line-height: 1.2;
    letter-spacing: -0.04em;
}

.intro p {
    max-width: 60ch;
    margin: 0 0 0.75rem;
}

.intro p:last-child {
    margin-bottom: 0;
}

.posts h2 {
    margin: 0 0 0.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--text);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.posts article {
    padding-block: 0.75rem;
    border-bottom: 1px solid var(--border);
}

.post-title {
    display: block;
    margin-bottom: 0.15rem;
    color: var(--text);
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.4;
}

.post-title:hover {
    color: var(--accent);
}

.post-meta {
    color: var(--muted);
    font-size: 0.8rem;
    line-height: 1.5;
}

.post-meta span {
    display: inline;
    margin: 0;
    padding: 0;
    border: 0;
    color: inherit;
    background: none;
    font-size: inherit;
    font-weight: inherit;
}

/* Post */

article > header {
    margin-bottom: 2rem;
}

article > header h1 {
    margin: 0 0 0.5rem;
    font-size: 2rem;
    line-height: 1.2;
    letter-spacing: -0.04em;
}

article > header p {
    margin: 0;
    color: var(--muted);
    font-size: 0.8rem;
}

article > div {
    max-width: 68ch;
}

article > div p,
article > div ul,
article > div ol,
article > div blockquote,
article > div pre {
    margin-block: 0 1rem;
}

article > div h2,
article > div h3,
article > div h4 {
    margin: 1.75rem 0 0.5rem;
    line-height: 1.3;
}

article > div h2 {
    font-size: 1.25rem;
}

article > div h3 {
    font-size: 1rem;
}

article > div h4 {
    font-size: 0.9rem;
}

article > div ul,
article > div ol {
    padding-left: 2rem;
}

article > div blockquote {
    margin-left: 0;
    padding-left: 1rem;
    border-left: 2px solid var(--accent);
    color: var(--muted);
}

article > div code {
    padding: 0.1rem 0.3rem;
    background: var(--code-bg);
    font-size: 0.9em;
}

article > div pre {
    overflow-x: auto;
    padding: 1rem;
    border: 1px solid var(--border);
    background: var(--code-bg);
    line-height: 1.5;
}

article > div pre code {
    padding: 0;
    background: none;
}

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

/* Mobile */

@media (max-width: 600px) {
    .container {
        width: min(calc(100% - 1.5rem), var(--max-width));
    }

    main.container {
        padding-block: 2rem;
    }

    .intro {
        margin-bottom: 2.5rem;
    }

    .intro h1,
    article > header h1 {
        font-size: 1.75rem;
    }
}