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

:root {
    --text: #1d1d1d;
    --text-muted: #6b6b6b;
    --bg: #ffffff;
    --border: #e0e0e0;
    --link: #1d1d1d;
    --link-hover: #0066cc;
}

@media (prefers-color-scheme: dark) {
    :root {
        --text: #e8e8e8;
        --text-muted: #a0a0a0;
        --bg: #121212;
        --border: #2a2a2a;
        --link: #e8e8e8;
        --link-hover: #6db3f2;
    }
}

body {
    font-family: "Georgia", "Times New Roman", serif;
    font-size: 18px;
    line-height: 1.75;
    color: var(--text);
    background: var(--bg);
    max-width: 640px;
    margin: 0 auto;
    padding: 3rem 1.5rem;
}

/* Links */
a {
    color: var(--link);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 2px;
    transition: color 0.15s ease;
}

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

/* Header */
header {
    margin-bottom: 3rem;
}

header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

header h1 a {
    text-decoration: none;
}

header h1 a:hover {
    color: var(--link-hover);
}

nav {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

nav a {
    text-decoration: none;
    color: var(--text-muted);
    font-size: 0.95rem;
}

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

/* Main headings */
main h1 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
    line-height: 1.3;
}

main h2 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    letter-spacing: -0.01em;
}

main h3 {
    font-size: 1.15rem;
    font-weight: 400;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

main p {
    margin-bottom: 1.25rem;
}

/* Lists */
ul, ol {
    margin: 1.25rem 0;
    padding-left: 1.25rem;
}

li {
    margin-bottom: 0.6rem;
}

/* Post & Project Lists */
.post-list, .project-list {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0;
}

.post-list li, .project-list li {
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.post-list li:last-child, .project-list li:last-child {
    border-bottom: none;
}

.post-title, .project-title {
    font-weight: 600;
}

.post-date {
    color: var(--text-muted);
    font-size: 0.9rem;
    display: block;
    margin-top: 0.25rem;
}

.post-excerpt, .project-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-top: 0.35rem;
    line-height: 1.6;
}

/* Article Styles */
article {
    margin-top: 0.5rem;
}

article h1 {
    font-size: 1.75rem;
    margin-bottom: 0.25rem;
}

article .meta {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 2.5rem;
}

article h2 {
    font-size: 1.25rem;
    margin-top: 2.5rem;
    margin-bottom: 0.75rem;
}

article blockquote {
    border-left: 3px solid var(--border);
    padding-left: 1.25rem;
    margin: 1.75rem 0;
    color: var(--text-muted);
    font-style: italic;
}

article code {
    font-family: "SF Mono", "Menlo", "Monaco", monospace;
    font-size: 0.85em;
    background: var(--border);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
}

article pre {
    background: var(--border);
    padding: 1rem;
    border-radius: 6px;
    overflow-x: auto;
    margin: 1.5rem 0;
}

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

article img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    margin: 1.5rem 0;
}

/* Horizontal Rule */
hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 2.5rem 0;
}

/* Social Links */
.social-links {
    list-style: none;
    padding: 0;
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin: 1rem 0;
}

.social-links li {
    margin: 0;
    padding: 0;
    border: none;
}

/* Back link */
.back-link {
    display: inline-block;
    margin-top: 1rem;
    font-size: 0.95rem;
}

/* Footer */
footer {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.9rem;
}

footer a {
    color: var(--text-muted);
}

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

/* Subtle selection highlight */
::selection {
    background: var(--link-hover);
    color: var(--bg);
}