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

:root {
    --purple: #a78bfa;
    --purple-dim: #7c3aed;
    --white: #f5f5f5;
    --gray: #888;
    --gray-light: #bbb;
    --dark: #111;
    --darker: #0a0a0a;
    --card: #161616;
    --border: #222;
    --mono: 'Fira Code', 'SF Mono', 'Cascadia Code', monospace;
    --sans: 'Inter', -apple-system, system-ui, sans-serif;
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--sans);
    background: var(--darker);
    color: var(--gray-light);
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

::selection {
    background: var(--purple);
    color: var(--darker);
}

h1, h2, h3, h4 {
    color: var(--white);
    font-weight: 600;
    line-height: 1.3;
    letter-spacing: -0.02em;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.4rem; }
h3 { font-size: 1.15rem; }

a {
    color: var(--purple);
    text-decoration: none;
    transition: opacity 0.2s;
}

a:hover { opacity: 0.7; }

p { margin-bottom: 1rem; }

code {
    font-family: var(--mono);
    background: var(--dark);
    padding: 0.15em 0.4em;
    border-radius: 4px;
    font-size: 0.85em;
    color: var(--purple);
}

pre {
    background: var(--dark);
    padding: 1.2rem;
    border-radius: 6px;
    overflow-x: auto;
    margin: 1.5rem 0;
    border: 1px solid var(--border);
}

pre code {
    background: none;
    padding: 0;
    color: var(--gray-light);
}

blockquote {
    border-left: 2px solid var(--purple);
    padding-left: 1rem;
    margin: 1.5rem 0;
    color: var(--gray);
    font-style: italic;
}

hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 2rem 0;
}

img {
    max-width: 100%;
    border-radius: 6px;
}

ul, ol {
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

li { margin-bottom: 0.3rem; }

.wrap {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.site-header {
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border);
}

.nav {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.nav-brand img {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid var(--border);
    transition: border-color 0.3s;
}

.nav-brand:hover img {
    border-color: var(--purple);
}

.nav-brand span {
    font-weight: 600;
    color: var(--white);
    font-size: 1.05rem;
    letter-spacing: -0.01em;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    align-items: center;
    list-style: none;
}

.nav-links a {
    color: var(--gray);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--white);
    opacity: 1;
}

.nav-links .gh-link svg {
    display: block;
}

.hero {
    padding: 4rem 0 2rem;
    text-align: center;
}

.hero-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin: 0 auto 1.5rem;
    display: block;
    border: 2px solid var(--border);
    transition: border-color 0.3s;
}

.hero-avatar:hover {
    border-color: var(--purple);
}

.hero h1 {
    font-size: 1.6rem;
    font-weight: 500;
    color: var(--white);
    margin-bottom: 0.5rem;
}

.hero h1 .accent {
    background: linear-gradient(90deg, var(--purple) 0%, var(--white) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    color: var(--gray);
    font-size: 1rem;
    margin: 0;
}

.section-title {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--gray);
    margin-bottom: 2.5rem;
    font-weight: 500;
}

.posts-grid {
    display: grid;
    gap: 2.5rem;
}

.post-card {
    padding-bottom: 2.5rem;
    border-bottom: 1px solid var(--border);
    transition: opacity 0.2s;
}

.post-card:hover {
    opacity: 0.9;
}

.post-card:last-child {
    border-bottom: none;
}

.post-card time {
    display: block;
    font-size: 0.8rem;
    color: var(--gray);
    font-family: var(--mono);
    margin-bottom: 0.75rem;
}

.post-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.post-card h3 a {
    color: var(--white);
    transition: color 0.2s;
}

.post-card h3 a:hover {
    color: var(--purple);
    opacity: 1;
}

.post-card .excerpt {
    color: var(--gray);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.tags-list {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.posts-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.post-item {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 1.25rem 0;
    border-bottom: 1px solid var(--border);
    transition: padding-left 0.2s;
}

.post-item:first-child {
    border-top: 1px solid var(--border);
}

.post-item:hover {
    padding-left: 0.5rem;
}

.post-item a {
    color: var(--white);
    font-weight: 500;
    font-size: 1rem;
    line-height: 1.5;
}

.post-item a:hover {
    color: var(--purple);
    opacity: 1;
}

.post-item time {
    color: var(--gray);
    font-size: 0.85rem;
    font-family: var(--mono);
    white-space: nowrap;
    margin-left: 1.5rem;
}

.post-header {
    padding: 3rem 0 1.5rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 2rem;
}

.post-header h1 {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.post-meta {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
    color: var(--gray);
    font-size: 0.85rem;
}

.post-meta time {
    font-family: var(--mono);
    font-size: 0.8rem;
}

.tag {
    display: inline-block;
    font-size: 0.75rem;
    padding: 0.2rem 0.6rem;
    background: var(--dark);
    border: 1px solid var(--border);
    border-radius: 3px;
    color: var(--purple);
    font-family: var(--mono);
}

.post-body {
    padding-bottom: 3rem;
}

.post-body h2 {
    margin-top: 2.5rem;
    margin-bottom: 0.75rem;
    padding-bottom: 0.3rem;
    border-bottom: 1px solid var(--border);
}

.post-body h3 {
    margin-top: 2rem;
    margin-bottom: 0.5rem;
}

.post-body p {
    margin-bottom: 1rem;
}

.post-nav {
    display: flex;
    justify-content: space-between;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    margin-top: 2rem;
    gap: 1rem;
}

.post-nav a {
    color: var(--gray);
    font-size: 0.85rem;
    transition: color 0.2s;
}

.post-nav a:hover {
    color: var(--purple);
    opacity: 1;
}

.archive-header {
    padding: 3rem 0 1rem;
}

.archive-header h1 {
    font-size: 1.6rem;
    font-weight: 500;
}

.site-footer {
    padding: 2rem 0;
    margin-top: 4rem;
    border-top: 1px solid var(--border);
    text-align: center;
}

.site-footer p {
    font-size: 0.8rem;
    color: var(--gray);
    margin: 0;
    font-family: var(--mono);
}

@media (max-width: 600px) {
    .nav { padding: 0 1rem; }
    .wrap { padding: 0 1rem; }

    h1 { font-size: 1.6rem; }
    .post-header h1 { font-size: 1.5rem; }

    .post-item {
        flex-direction: column;
        gap: 0.2rem;
    }

    .post-item time {
        margin-left: 0;
    }
}