:root {
    --color-bg-page: #000000;
    --color-bg-main: #050505;
    --color-bg-main-transparent: rgba(5, 5, 5, 0.8);
    --color-bg-alt: #252525;
    --color-bg-accent: #99ccff;
    --color-fg-main: #e2e2e2;
    --color-fg-alt: #ffffff;
    --color-fg-accent: #e2e2e2;
    --color-bg-alt-transparent: rgba(37,37,37,0.5);
    --color-fg-alt-transparent: rgba(255,255,255,0.5);
    --color-bg-accent-transparent: rgba(153,204,255,0.5);
    --color-bg-alert: rgba(153,204,255,0.2);
    --color-bg-code: rgba(153,204,255,0.2);
    --color-border-main: rgb(21,21,21);
    --color-border-header: rgb(105,105,105);
    --color-fg-alert-link: rgb(229,242,255);
    --image-bg: url('images/background.jpg');
    --font-body: "Clear Sans", sans-serif;
    --font-header: "Clear Sans", sans-serif;
    --bg-repeat: no-repeat;
    --bg-size: cover;
}

html {
    margin: 0;
    padding: 0;
    background-color: var(--color-bg-page);
}

body {
    margin: 0;
    padding: 0;
    color: var(--color-fg-main);
    font-family: var(--font-body);
}

/* Fixed background as a real fixed-position layer.
   Safari on macOS does not composite `background-attachment: fixed`
   properly and it jitters/jiggles while scrolling. */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    background-image: var(--image-bg);
    background-repeat: var(--bg-repeat);
    background-size: var(--bg-size);
    background-position: center;
}

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

a:hover {
    text-decoration: underline;
}

header {
    padding: 2rem 2rem 1rem;
    text-align: center;
    border-bottom: 1px solid var(--color-border-header);
    background-color: var(--color-bg-alt-transparent);
}

.logo {
    max-width: 180px;
    margin-bottom: 10px;
}

h1 {
    font-size: 3rem;
    color: var(--color-fg-alt);
    margin-bottom: 0;
}

.subtitle {
    font-size: 1.2rem;
    color: var(--color-fg-alt-transparent);
    max-width: 400px;
    margin: 1rem auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.tag-nav {
    font-size: 1.05rem;
    color: var(--color-fg-alt-transparent);
    max-width: 400px;
    margin: 0.5rem auto 0;
}

.tag-nav-link {
    color: var(--color-bg-accent);
}

.tag-nav-link:hover {
    text-decoration: underline;
}

.tag-nav-active {
    color: var(--color-fg-alt);
    text-decoration: underline;
}

.tag-nav-sep {
    color: var(--color-fg-alt-transparent);
}

main {
    max-width: 800px;
    margin: 1.5rem auto;
    padding: 1rem;
    background-color: var(--color-bg-main-transparent);
    border-radius: 5px;
    box-shadow: 0 0 15px rgba(0,0,0,0.5);
}

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

.post-list li {
    border-bottom: 1px solid var(--color-border-main);
    padding: 1rem 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.post-list li a {
    font-size: 1.4rem;
    color: var(--color-fg-alt);
}

.post-subtitle {
    font-size: 1.1rem;
    color: var(--color-fg-alt-transparent);
    margin: 0.2rem 0;
}

.post-info {
    display: flex;
    flex-direction: column;
}


.date {
    font-size: 0.9rem;
    color: var(--color-fg-alt-transparent);
}

.post-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
}

.post-headline {
    flex: 1;
    min-width: 0;
}

.post-headline h1 {
    margin: 0;
}

.article-subtitle {
    font-size: 0.9rem;
    font-style: italic;
    color: var(--color-fg-alt-transparent);
    margin: 0.4rem 0 0.25rem;
}

.post-author {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.9rem;
    color: var(--color-fg-alt-transparent);
}

.author-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    object-position: center;
}

.author-name {
    color: var(--color-fg-alt);
}

.author-name:hover {
    text-decoration: underline;
}

article.content {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-fg-main);
}

article.content img {
    max-width: 100%;
    height: auto;
    border-radius: 5px;
    margin: 1rem 0;
    border: 1px solid var(--color-fg-alt);
}

table {
    border-collapse: collapse;
    margin: 1.5rem auto;
    font-size: 0.95rem;
    line-height: 1.5;
}

th, td {
    border: 1px solid var(--color-bg-accent-transparent);
    padding: 0.4rem 0.8rem;
    text-align: left;
}

th {
    background-color: var(--color-bg-code);
}

blockquote {
    margin: 1rem;
    padding: 0.5rem 1rem;
    border-left: 3px solid var(--color-bg-accent-transparent);
    color: rgb(188,188,188);
    background-color: var(--color-bg-code);
    font-style: italic;
}

footer {
    text-align: center;
    font-size: 0.85rem;
    color: var(--color-fg-alt-transparent);
    margin: 3rem 0;
    padding-bottom: 2rem;
}

code, pre {
    font-family: monospace;
    background-color: var(--color-bg-code);
    padding: 2px 5px;
    border-radius: 3px;
}

pre {
    overflow-x: auto;
    padding: 1rem;
    margin: 1rem 0;
}

.pagination {
    text-align: center;
    margin: 20px 0;
    font-size: 16px;
}

.pagination a {
    text-decoration: none;
    padding: 5px 10px;
    border: 1px solid #ccc;
    margin: 0 5px;
    color: #555;
    border-radius: 4px;
}

.pagination a:hover {
    background-color: #f2f2f2;
}

.pagination .page-number {
    margin: 0 10px;
    font-weight: bold;
}

.tag-cloud {
    margin: 1.5rem 0 0.5rem;
    padding: 1rem 0 0;
    font-size: 0.9rem;
    line-height: 1.6;
    border-top: 1px solid var(--color-border-main);
}

.tag-cloud-label {
    color: var(--color-fg-alt-transparent);
    margin-right: 0.4rem;
}

.tag-cloud .tag {
    color: var(--color-bg-accent);
    margin-right: 0.4rem;
    white-space: nowrap;
}

.tag-cloud .tag-count {
    font-size: 0.8em;
    color: var(--color-fg-alt-transparent);
    margin-left: 0.2em;
}

.tag-cloud .tag-active {
    color: var(--color-fg-alt);
    text-decoration: underline;
}

.post-tags {
    margin: 0.3rem 0 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
}

.tag-chip {
    display: inline-block;
    padding: 0.1rem 0.55rem;
    font-size: 0.8rem;
    background-color: var(--color-bg-alt-transparent);
    color: var(--color-fg-alt-transparent);
    border-radius: 999px;
    border: 1px solid var(--color-border-main);
}

.tag-chip:hover {
    color: var(--color-fg-alt);
    text-decoration: none;
    border-color: var(--color-bg-accent-transparent);
}

.section-heading {
    margin: 0.5rem 0 0.75rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-fg-alt-transparent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.post-nav {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin: 2.5rem 0 1.5rem;
    padding: 1rem 0;
    border-top: 1px solid var(--color-border-main);
    border-bottom: 1px solid var(--color-border-main);
}

.post-nav > div {
    flex: 1 1 0;
    min-width: 0;
}

.post-nav-next {
    text-align: right;
}

.post-nav a {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.post-nav-label {
    font-size: 0.85rem;
    color: var(--color-fg-alt-transparent);
}

.post-nav-title {
    font-size: 1.05rem;
    color: var(--color-fg-alt);
}

.related-posts {
    margin-top: 2rem;
}

.related-posts h3 {
    margin: 0 0 0.4rem;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-fg-alt-transparent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.related-posts h3 a {
    color: var(--color-bg-accent);
    text-transform: none;
    letter-spacing: 0;
}

.related-posts .post-list li {
    padding: 0.4rem 0;
}

.related-posts .post-list li a {
    font-size: 1rem;
}

.related-posts .post-list .post-subtitle {
    font-size: 0.85rem;
}

.related-posts .post-list .date {
    font-size: 0.8rem;
}