body {
    font-family: 'Arial', sans-serif;
    background-color: #121212;
    color: #fff;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}
header {
    width: 100%;
    padding: 1em 2em;
    box-sizing: border-box;
    background: #1a1a1a;
    display: flex;
    align-items: center;
}
header a {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: inherit;
    width: fit-content;
}
header nav {
    margin-left: 1.5em;
}
header nav a {
    font-size: 1em;
    font-weight: 400;
    color: #fff;
    width: auto;
}
header img {
    width: 64px;
    height: 64px;
    object-fit: cover;
    margin-right: 12px;
    display: block;
}
header a span {
    font-size: 1.4em;
    font-weight: 500;
}
.hero {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2em 0 1em;
}
.hero img {
    width: 200px;
    height: 200px;
    border-radius: 30%;
    object-fit: cover;
    margin-right: 20px;
}
.hero-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5em;
}
.hero h1 {
    margin: 0;
    font-size: 2.5em;
    font-weight: 500;
}
.hero p {
    font-size: 1.2em;
    font-weight: 300;
    margin: 0;
}
section {
    width: 80%;
    max-width: 900px;
    margin-top: 40px;
    padding: 20px;
    background-color: #1a1a1a;
    border-radius: 10px;
}
section h2 {
    font-size: 2em;
    border-bottom: 2px solid #444;
    padding-bottom: 5px;
}
.section-content {
    margin-top: 20px;
    font-size: 1.1em;
    line-height: 1.6;
}
.section-content ul {
    list-style-type: none;
    padding-left: 0;
}
.section-content li {
    margin-bottom: 15px;
}
.section-content li i {
    font-size: 0.9em;
}
a {
    color: #1e90ff;
    text-decoration: none;
}
.post-meta {
    font-size: 0.9em;
    font-weight: 300;
    color: #888;
    margin-top: 4px;
}
.post-body h1, .post-body h2, .post-body h3 {
    font-weight: 500;
}
.post-body h2 {
    border-bottom: 2px solid #444;
    padding-bottom: 5px;
}
.post-body pre {
    background-color: #111;
    padding: 1em;
    border-radius: 6px;
    overflow-x: auto;
}
.post-body code {
    font-family: monospace;
    font-size: 0.95em;
}
.post-body blockquote {
    border-left: 3px solid #444;
    margin-left: 0;
    padding-left: 1em;
    color: #aaa;
}
.back-link {
    width: 80%;
    max-width: 900px;
    margin-top: 2em;
    font-size: 0.95em;
}
.page-heading {
    width: 80%;
    max-width: 900px;
    margin-top: 40px;
    font-size: 2em;
    border-bottom: 2px solid #444;
    padding-bottom: 5px;
}
.post-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 80%;
    max-width: 900px;
    margin-top: 1em;
    padding: 1.2em 1.5em;
    background-color: #1a1a1a;
    border-radius: 10px;
    text-decoration: none;
    color: inherit;
    transition: background-color 0.15s ease;
}
.post-card:hover {
    background-color: #222;
}
.post-card-title {
    font-size: 1.1em;
    font-weight: 500;
}
.post-card-date {
    font-size: 0.9em;
    font-weight: 300;
    color: #888;
    white-space: nowrap;
    margin-left: 2em;
}