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

:root {
    --bg: #0d1117;
    --bg2: #161b22;
    --bg3: #21262d;
    --border: #30363d;
    --text: #e6edf3;
    --muted: #8b949e;
    --accent: #58a6ff;
    --green: #3fb950;
    --orange: #d29922;
    --purple: #a371f7;
    --red: #f85149;
    --mono: "JetBrains Mono", Consolas, "Courier New", monospace;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family:
        -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial,
        sans-serif;
    font-size: 16px;
    line-height: 1.7;
    min-height: 100vh;
}

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

a:hover {
    text-decoration: underline;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ── Layout ───────────────────────────────────────────── */

.wrap {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 24px;
}

.wrap--article {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ── Nav ──────────────────────────────────────────────── */

.nav {
    border-bottom: 1px solid var(--border);
    padding: 16px 0;
}

.nav__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text);
}

.nav__logo:hover {
    text-decoration: none;
}

.nav__mark {
    width: 30px;
    height: 30px;
    background: linear-gradient(135deg, #3d88ff, #8957e5);
    border-radius: 7px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}

.nav__title {
    font-size: 15px;
    font-weight: 600;
}
.nav__subtitle {
    font-size: 11px;
    color: var(--muted);
}

.nav__links {
    display: flex;
    gap: 24px;
    font-size: 14px;
}

.nav__links a {
    color: var(--muted);
}
.nav__links a:hover {
    color: var(--text);
    text-decoration: none;
}
.nav__links a.active {
    color: var(--accent);
}

/* ── Hero ─────────────────────────────────────────────── */

.hero {
    padding: 56px 0 40px;
    border-bottom: 1px solid var(--border);
}

.hero__eyebrow {
    font-size: 12px;
    font-weight: 500;
    color: var(--accent);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 14px;
}

.hero__title {
    font-size: 34px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 16px;
}

.hero__desc {
    color: var(--muted);
    font-size: 16px;
    max-width: 560px;
    line-height: 1.7;
}

.hero__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 20px;
}

.hero__tag {
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 20px;
    border: 1px solid var(--border);
    background: var(--bg2);
    color: var(--muted);
}

/* ── Tags / Pills ─────────────────────────────────────── */

.tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 500;
    padding: 3px 9px;
    border-radius: 20px;
    text-decoration: none;
    white-space: nowrap;
}

.tag:hover {
    text-decoration: none;
    opacity: 0.85;
}

.tag--kubernetes {
    background: #1f2d3d;
    color: #58a6ff;
    border: 1px solid #2d5580;
}
.tag--terraform {
    background: #2d1f3d;
    color: #a371f7;
    border: 1px solid #5a3d8a;
}
.tag--vault {
    background: #3d2e1f;
    color: #d29922;
    border: 1px solid #7a5a1f;
}
.tag--devops {
    background: #1f2d1f;
    color: #3fb950;
    border: 1px solid #2a5a2a;
}
.tag--linux {
    background: #3d1f1f;
    color: #f85149;
    border: 1px solid #8a2d2d;
}
.tag--docker {
    background: #1f2a3d;
    color: #58a6ff;
    border: 1px solid #2d4a7a;
}
.tag--proxmox {
    background: #2d1f1f;
    color: #d29922;
    border: 1px solid #7a5a1f;
}
.tag--homelab {
    background: #1f2d2d;
    color: #3fb950;
    border: 1px solid #2a5a5a;
}
.tag--gitops {
    background: #2d2d1f;
    color: #d29922;
    border: 1px solid #7a7a1f;
}
.tag--monitoring {
    background: #2d1f2d;
    color: #a371f7;
    border: 1px solid #5a3d8a;
}
.tag--default {
    background: var(--bg2);
    color: var(--muted);
    border: 1px solid var(--border);
}
.tag--security {
    background-color: var(--tag-red-bg, #2d1f1f);
    color: var(--tag-red-text, #c0392b);
    border: 1px solid #8a2020;
}

.tag--mail {
    background-color: var(--tag-green-bg, #1f2d27);
    color: var(--tag-green-text, #1d9e75);
    border: 1px solid #1a7a3a;
}

.tag--cloudflare {
    background: #2d1f0f;
    color: #f48120;
    border: 1px solid #7a4a10;
}

/* ── Section labels ───────────────────────────────────── */

.section-label {
    font-size: 12px;
    font-weight: 500;
    color: var(--muted);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin: 40px 0 16px;
}

/* ── Featured card ────────────────────────────────────── */

.featured-card {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 28px;
    margin-bottom: 32px;
    transition: border-color 0.15s;
}

.featured-card:hover {
    border-color: var(--accent);
}

.featured-card__tags {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-bottom: 14px;
}

.featured-card__title {
    font-size: 22px;
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 10px;
    color: var(--text);
}

.featured-card__title a {
    color: var(--text);
}
.featured-card__title a:hover {
    color: var(--accent);
    text-decoration: none;
}

.featured-card__desc {
    color: var(--muted);
    font-size: 14px;
    line-height: 1.65;
    margin-bottom: 18px;
}

.featured-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    color: var(--muted);
}

.featured-card__author {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* ── Post grid ────────────────────────────────────────── */

.posts-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 48px;
}

.post-card {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 20px;
    transition: border-color 0.15s;
}

.post-card:hover {
    border-color: var(--accent);
}

.post-card__tags {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.post-card__title {
    font-size: 15px;
    font-weight: 600;
    line-height: 1.4;
    margin: 10px 0 8px;
}

.post-card__title a {
    color: var(--text);
}
.post-card__title a:hover {
    color: var(--accent);
    text-decoration: none;
}

.post-card__desc {
    color: var(--muted);
    font-size: 13px;
    line-height: 1.6;
    margin-bottom: 14px;
}

.post-card__footer {
    font-size: 12px;
    color: var(--muted);
    display: flex;
    gap: 6px;
}

/* ── Author dot ───────────────────────────────────────── */

.author-dot {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: linear-gradient(135deg, #3d88ff, #8957e5);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}

/* ── Article ──────────────────────────────────────────── */

.article-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--muted);
    font-size: 14px;
    padding: 20px 0 0;
    cursor: pointer;
    transition: color 0.15s;
}

.article-back:hover {
    color: var(--text);
    text-decoration: none;
}

.article-hero {
    padding: 32px 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: 32px;
}

.article-hero__tags {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-bottom: 14px;
}

.article-hero__title {
    font-size: 30px;
    font-weight: 700;
    line-height: 1.25;
    margin-bottom: 16px;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--muted);
    flex-wrap: wrap;
}

.article-meta__sep {
    color: var(--border);
}

/* ── Table of contents ────────────────────────────────── */

.toc {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 18px 20px;
    margin-bottom: 32px;
    font-size: 14px;
}

.toc__title {
    font-size: 11px;
    font-weight: 500;
    color: var(--muted);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.toc a {
    color: var(--muted);
    display: block;
    padding: 3px 0;
    transition: color 0.15s;
}

.toc a:hover {
    color: var(--accent);
    text-decoration: none;
}

/* ── Prose ────────────────────────────────────────────── */

.prose {
    font-size: 16px;
    line-height: 1.8;
}

.prose h2 {
    font-size: 22px;
    font-weight: 600;
    margin: 40px 0 14px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
    color: var(--text);
}

.prose h3 {
    font-size: 18px;
    font-weight: 600;
    margin: 28px 0 10px;
    color: var(--text);
}

.prose p {
    margin-bottom: 18px;
    color: var(--muted);
}
.prose p strong {
    color: var(--text);
}

.prose a {
    color: var(--accent);
}

.prose ul,
.prose ol {
    color: var(--muted);
    padding-left: 24px;
    margin-bottom: 18px;
}

.prose li {
    margin-bottom: 6px;
}

.prose code {
    font-family: var(--mono);
    font-size: 13.5px;
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 2px 6px;
    color: #79c0ff;
}

.prose pre {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
    overflow-x: auto;
}

.prose pre code {
    background: none;
    border: none;
    padding: 0;
    font-size: 13.5px;
    line-height: 1.7;
    color: var(--text);
}

.prose blockquote {
    border-left: 3px solid var(--accent);
    padding: 12px 20px;
    margin: 24px 0;
    background: var(--bg2);
    border-radius: 0 8px 8px 0;
}

.prose blockquote p {
    color: var(--muted);
    margin: 0;
    font-style: italic;
}

.prose hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 32px 0;
}

/* ── Prose images ─────────────────────────────────────── */

.prose img {
    width: 100%;
    max-width: 860px;
    margin: 28px auto;
    border-radius: 8px;
    border: 1px solid var(--border);
    cursor: zoom-in;
    display: block;
}

.prose figure {
    margin: 28px 0;
}

.prose figcaption {
    font-size: 13px;
    color: var(--muted);
    text-align: center;
    margin-top: 8px;
}

.prose table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    margin-bottom: 20px;
}

.prose th {
    text-align: left;
    padding: 10px 14px;
    background: var(--bg2);
    border: 1px solid var(--border);
    color: var(--text);
    font-weight: 600;
}

.prose td {
    padding: 10px 14px;
    border: 1px solid var(--border);
    color: var(--muted);
}

/* ── Callout ──────────────────────────────────────────── */

.callout {
    background: var(--bg2);
    border: 1px solid #2d5580;
    border-left: 3px solid var(--accent);
    border-radius: 0 8px 8px 0;
    padding: 14px 18px;
    margin: 20px 0;
    font-size: 14px;
    color: var(--muted);
}

.callout strong {
    color: var(--accent);
}

/* ── Related posts ────────────────────────────────────── */

.related {
    border-top: 1px solid var(--border);
    padding: 28px 0;
    margin-top: 16px;
}

.related__label {
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 14px;
}

.related__list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.related__item {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 14px 16px;
    transition: border-color 0.15s;
}

.related__item:hover {
    border-color: var(--accent);
}

.related__item h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 4px;
}

.related__item h4 a {
    color: var(--text);
}
.related__item h4 a:hover {
    color: var(--accent);
    text-decoration: none;
}

.related__item-meta {
    font-size: 12px;
    color: var(--muted);
}

/* ── Footer ───────────────────────────────────────────── */

.footer {
    border-top: 1px solid var(--border);
    padding: 32px 0;
    text-align: center;
    font-size: 13px;
    color: var(--muted);
    margin-top: 16px;
}

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

/* ── Syntax highlight (Chroma) ────────────────────────── */

.highlight {
    margin: 20px 0;
}
.highlight pre {
    margin: 0;
}

/* ── Responsive ───────────────────────────────────────── */

@media (max-width: 640px) {
    .hero__title {
        font-size: 26px;
    }
    .posts-grid {
        grid-template-columns: 1fr;
    }
    .article-hero__title {
        font-size: 24px;
    }
    .nav__links {
        gap: 16px;
    }
}