:root {
    --bg-color: #fff;
    --text-color: #333;
    --text-muted: #999;
    --link-color: #0066cc;
    --border-color: #eee;
    --code-color: #d2691e;
    --alert-note: #0969da;
    --alert-important: #8250df;
    --alert-warning: #9a6700;
    --alert-tip: #1a7f37;
    --alert-caution: #d1242f;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #1a1a1a;
        --text-color: #e0e0e0;
        --text-muted: #666;
        --link-color: #66b3ff;
        --border-color: #333;
        --code-color: #ff8c42;
        --alert-note: #58a6ff;
        --alert-important: #a371f7;
        --alert-warning: #d29922;
        --alert-tip: #3fb950;
        --alert-caution: #f85149;
    }
}

* {
    box-sizing: border-box;
}

html {
  color-scheme: light dark;
}

body {
    font-family: system-ui;
    line-height: 1.5;
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1rem;
    color: var(--text-color);
    background-color: var(--bg-color);
}

header {
    margin-bottom: 3rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

header nav {
    display: flex;
    gap: 2rem;
    align-items: center;
}

header nav a {
    text-decoration: none;
    color: var(--text-muted);
    font-weight: normal;
    font-size: 1rem;
}

h1 {
    margin-top: 0;
    margin-bottom: 0.5rem;
}

h2, h3, h4, h5, h6 {
    position: relative;
}

h2:hover .heading-link, h3:hover .heading-link, h4:hover .heading-link, h5:hover .heading-link, h6:hover .heading-link {
    opacity: 1;
}

.heading-link {
    opacity: 0;
    margin-left: 0.5rem;
    color: var(--text-muted);
    text-decoration: none;
    transition: opacity 0.2s;
}

.heading-link:hover {
    color: var(--link-color);
}

time {
    color: var(--text-muted);
}

blockquote {
    margin: 1.5rem 0;
    padding: 0.5rem 1rem;
    border-left: 4px solid var(--border-color);
    color: var(--text-muted);
}

.markdown-alert {
    margin: 1.5rem 0;
    padding: 0.5rem 1rem;
    border-left: 0.25rem solid;
}

.alert-title {
    font-weight: 600;
    margin: 0 0 0.5rem 0;
}

.markdown-alert-note { --alert-color: var(--alert-note); }
.markdown-alert-important { --alert-color: var(--alert-important); }
.markdown-alert-warning { --alert-color: var(--alert-warning); }
.markdown-alert-tip { --alert-color: var(--alert-tip); }
.markdown-alert-caution { --alert-color: var(--alert-caution); }

.markdown-alert {
    border-color: var(--alert-color);
}

.alert-title {
    color: var(--alert-color);
}

article {
    margin-bottom: 3rem;
}

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

code {
    font-family: monospace;
    background-color: var(--border-color);
    padding: 0.2em 0.4em;
    border-radius: 3px;
    font-size: 0.9em;
    color: var(--code-color);
}

body.home header nav a[href="/"],
body.posts header nav a[href="/posts/"],
body.misc header nav a[href="/misc/"] {
    color: var(--text-color);
}

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

.post-list li {
    margin-bottom: 0.75rem;
    display: flex;
    gap: 1rem;
}

.post-list .date {
    color: var(--text-muted);
    flex-shrink: 0;
}

.post-list a {
    color: var(--link-color);
    text-decoration: none;
}

.post-list a:hover {
    text-decoration: underline;
}

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

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

.note-card {
    display: block;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--bg-color);
    transition: border-color 0.2s;
    text-decoration: none;
    color: var(--text-color);
}

.note-card:hover {
    border-color: var(--text-muted);
}

.note-title {
    color: var(--text-color);
    font-size: 1.1rem;
    font-weight: 500;
    margin: 0 0 0.5rem 0;
}

.note-card p {
    margin: 0;
    color: var(--text-muted);
}

img,
svg,
video {
  max-width: 100%;
  display: block;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
}

th, td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    font-weight: bold;
    background-color: var(--border-color);
}

footer {
    margin-top: 4rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.9rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

footer p {
    margin: 0;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    color: var(--text-muted);
    display: flex;
    align-items: center;
}

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

.about {
    text-align: center;
    margin-top: 4rem;
}

.profile-image {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    margin: 0 auto 1rem;
}