/* Mediumish-inspired styling */
:root {
  --ink: #05101a;
  --text: #333a40;
  --muted: #6b7680;
  --line: #e9ecef;
  --bg: #ffffff;
  --bg-soft: #f7f8fa;
  --accent: #00ab6b;
  --link: #0076df;
  --sans: "Source Sans 3", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --serif: "Lora", Georgia, "Times New Roman", serif;
  --mono: "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; }
h1, h2, h3, h4, h5, h6 { color: var(--ink); font-weight: 700; line-height: 1.25; margin: 1.6em 0 .6em; }

.container { width: 100%; max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.container-narrow { width: 100%; max-width: 740px; margin: 0 auto; }
.site-main > .container > h1:first-child { margin-top: 0; }

/* ---------- Navbar ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .96);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; min-height: 64px; flex-wrap: wrap; gap: 4px 24px; }
.site-title { font-size: 1.35rem; font-weight: 700; color: var(--ink); letter-spacing: -.01em; }
.site-title:hover { text-decoration: none; color: var(--accent); }
.site-nav { display: flex; gap: 6px 26px; flex-wrap: wrap; }
.site-nav a { color: var(--muted); font-size: .98rem; font-weight: 600; padding: 6px 0; }
.site-nav a:hover { color: var(--ink); text-decoration: none; }

/* ---------- Layout ---------- */
.site-main { min-height: 70vh; padding: 36px 0 10px; }

/* ---------- Author intro ---------- */
.intro { display: flex; gap: 32px; align-items: center; padding: 20px 0 40px; border-bottom: 1px solid var(--line); margin-bottom: 40px; }
.intro-avatar { width: 150px; height: 150px; border-radius: 50%; object-fit: cover; flex: 0 0 auto; box-shadow: 0 6px 24px rgba(0, 0, 0, .12); }
.intro-body h1 { margin: 0 0 8px; font-size: 2rem; letter-spacing: -.02em; }
.intro-body p { margin: 0 0 10px; color: var(--text); }
.intro-statement { color: var(--muted); font-size: .98rem; }
.social-links { list-style: none; margin: 14px 0 0; padding: 0; display: flex; gap: 8px; }
.social-links a { display: inline-flex; width: 36px; height: 36px; align-items: center; justify-content: center; border-radius: 50%; background: var(--bg-soft); color: var(--muted); font-size: 1.1rem; transition: .15s; }
.social-links a:hover { background: var(--ink); color: #fff; text-decoration: none; }

/* ---------- Section title ---------- */
.section-title { font-size: 1.05rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); font-weight: 700; margin: 0 0 22px; padding-bottom: 12px; border-bottom: 1px solid var(--line); }

/* ---------- Cards ---------- */
.card-cover { display: block; height: 8px; background: linear-gradient(90deg, #00ab6b, #3a86ff); }
.card { background: #fff; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; display: flex; flex-direction: column; transition: box-shadow .2s, transform .2s; }
.card:hover { box-shadow: 0 12px 32px rgba(0, 0, 0, .09); transform: translateY(-2px); }
.card-body { padding: 22px 24px 20px; display: flex; flex-direction: column; flex: 1; }
.card-tag { font-size: .78rem; font-weight: 700; letter-spacing: .07em; text-transform: uppercase; color: var(--accent); margin-bottom: 8px; }
.card-title { margin: 0 0 10px; font-size: 1.4rem; letter-spacing: -.01em; }
.card-title a { color: var(--ink); }
.card-title a:hover { color: var(--accent); text-decoration: none; }
.card-text { color: var(--muted); margin: 0 0 18px; font-size: 1rem; flex: 1; }
.card-text p { margin: 0; }
.card-meta { display: flex; align-items: center; gap: 10px; font-size: .88rem; color: var(--muted); }
.card-meta img { width: 34px; height: 34px; border-radius: 50%; object-fit: cover; }
.card-meta strong { display: block; color: var(--ink); font-size: .92rem; line-height: 1.2; }

.card-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.card-grid .card:nth-child(4n+1) .card-cover { background: linear-gradient(90deg, #00ab6b, #3a86ff); }
.card-grid .card:nth-child(4n+2) .card-cover { background: linear-gradient(90deg, #ff7a18, #af002d); }
.card-grid .card:nth-child(4n+3) .card-cover { background: linear-gradient(90deg, #7b2ff7, #f107a3); }
.card-grid .card:nth-child(4n+4) .card-cover { background: linear-gradient(90deg, #00c6ff, #0072ff); }

/* Featured post */
.featured { margin-bottom: 36px; border: 0; border-radius: 10px; color: #fff; background: linear-gradient(135deg, #0f2027 0%, #203a43 50%, #2c5364 100%); min-height: 280px; justify-content: flex-end; }
.featured .card-cover { display: none; }
.featured .card-body { padding: 44px 44px 36px; justify-content: flex-end; }
.featured .card-tag { color: #6ee7b7; }
.featured .card-title { font-size: 2.3rem; line-height: 1.15; }
.featured .card-title a { color: #fff; }
.featured .card-title a:hover { color: #6ee7b7; }
.featured .card-text { color: rgba(255, 255, 255, .8); font-size: 1.15rem; flex: 0; }
.featured .card-meta { color: rgba(255, 255, 255, .7); }
.featured .card-meta strong { color: #fff; }

/* ---------- Pagination ---------- */
.pagination { display: flex; align-items: center; justify-content: space-between; margin-top: 20px; padding-top: 10px; border-top: 1px solid var(--line); font-size: .95rem; }
.pagination a, .pagination .disabled { display: inline-block; padding: 8px 18px; border: 1px solid var(--line); border-radius: 999px; color: var(--ink); font-weight: 600; }
.pagination a:hover { background: var(--ink); color: #fff; border-color: var(--ink); text-decoration: none; }
.pagination .disabled { color: #b8c0c7; }
.pagination-meta { color: var(--muted); }

/* ---------- Post / page ---------- */
.post-header { text-align: center; padding: 30px 0 34px; }
.post-header .card-tag { display: inline-block; margin-bottom: 14px; }
.post-header h1 { font-size: 2.8rem; letter-spacing: -.02em; margin: 0 0 20px; }
.post-header .lede { font-size: 1.2rem; color: var(--muted); margin: 0 auto 24px; max-width: 600px; }
.author-line { display: inline-flex; align-items: center; gap: 12px; text-align: left; font-size: .92rem; color: var(--muted); }
.author-line img { width: 46px; height: 46px; border-radius: 50%; object-fit: cover; }
.author-line strong { display: block; color: var(--ink); font-size: 1rem; }

.post-content { font-family: var(--serif); font-size: 1.2rem; line-height: 1.75; color: #2b3138; }
.post-content > :first-child { margin-top: 0; }
.post-content p, .post-content ul, .post-content ol { margin: 0 0 1.5em; }
.post-content h1, .post-content h2, .post-content h3, .post-content h4 { font-family: var(--sans); }
.post-content h2 { font-size: 1.8rem; margin-top: 2em; }
.post-content h3 { font-size: 1.4rem; }
.post-content a { color: var(--link); border-bottom: 1px solid rgba(0, 118, 223, .3); }
.post-content a:hover { text-decoration: none; border-bottom-color: var(--link); }
.post-content img { display: block; margin: 1.5em auto; border-radius: 4px; }
.post-content blockquote { margin: 1.6em 0; padding: .2em 0 .2em 1.4em; border-left: 4px solid var(--accent); color: var(--muted); font-style: italic; }
.post-content hr { border: 0; border-top: 1px solid var(--line); margin: 2.5em 0; }

/* Page (non-post) content uses the sans body face */
.page-content { font-size: 1.1rem; }
.page-content h1:first-child { margin-top: 0; font-size: 2.4rem; letter-spacing: -.02em; }

/* Code */
code, pre { font-family: var(--mono); font-size: .88em; }
:not(pre) > code { background: #f1f3f5; padding: .15em .4em; border-radius: 4px; color: #c7254e; }
pre { background: #272822; color: #f8f8f2; padding: 18px 22px; border-radius: 8px; overflow-x: auto; line-height: 1.5; margin: 1.6em 0; }
pre code { background: none; padding: 0; color: inherit; border-radius: 0; }
.highlight { margin: 1.6em 0; border-radius: 8px; overflow-x: auto; }
.highlight pre { margin: 0; }

/* Tables */
table { border-collapse: collapse; width: 100%; margin: 1.6em 0; font-family: var(--sans); font-size: .97rem; }
th, td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-weight: 700; color: var(--ink); border-bottom: 2px solid var(--ink); }
tbody tr:hover { background: var(--bg-soft); }

/* Archive lists */
.post-link { color: var(--ink); font-weight: 600; }
.post-link:hover { color: var(--accent); text-decoration: none; }

/* Comments / misc */
.post-footer-block { margin-top: 56px; padding-top: 32px; border-top: 1px solid var(--line); font-family: var(--sans); }
.related-post-title { margin-top: 2em; }

/* About (centered) */
.centered { text-align: center; }
.centered img.about-avatar { width: 200px; height: 200px; border-radius: 50%; object-fit: cover; margin-bottom: 20px; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); background: var(--bg-soft); padding: 0; font-size: .92rem; color: var(--muted); }
.site-footer .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; min-height: 64px; gap: 4px 24px; }
.site-footer a { color: var(--muted); font-weight: 600; }
.site-footer a:hover { color: var(--ink); text-decoration: none; }

/* ---------- Responsive ---------- */
@media (max-width: 800px) {
  .card-grid { grid-template-columns: 1fr; }
  .intro { flex-direction: column; text-align: center; }
  .social-links { justify-content: center; }
  .featured .card-body { padding: 28px 24px; }
  .featured .card-title { font-size: 1.7rem; }
  .post-header h1 { font-size: 2rem; }
  .post-content { font-size: 1.1rem; }
}

/* Rouge line-number tables inside code blocks */
.highlight table { margin: 0; font-family: var(--mono); font-size: 1em; }
.highlight table td, .highlight table th { border: 0; padding: 0 12px 0 0; vertical-align: top; }
.highlight table tbody tr:hover { background: none; }
.highlight .rouge-gutter pre, .highlight .lineno { color: #8f908a; user-select: none; }
.highlight td.rouge-code { width: 100%; }

/* ---------- Post layout with section navigation ---------- */
.post-layout { display: grid; grid-template-columns: minmax(0, 740px); justify-content: center; width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 20px; }
.post-main { min-width: 0; }
.post-toc { margin-bottom: 28px; padding: 16px 18px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg-soft); font-family: var(--sans); }
.toc-title { font-size: .75rem; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; color: var(--muted); margin-bottom: 10px; }
.toc-list { list-style: none; margin: 0; padding: 0; }
.toc-list a { display: block; padding: 5px 0 5px 12px; margin-left: -1px; border-left: 2px solid transparent; color: var(--muted); font-size: .92rem; line-height: 1.35; transition: color .15s, border-color .15s; }
.toc-list a:hover { color: var(--ink); text-decoration: none; }
.toc-list a.active { color: var(--accent); border-left-color: var(--accent); font-weight: 600; }
.toc-list .toc-l1 a { padding-left: 26px; font-size: .88rem; }
.toc-list .toc-l2 a { padding-left: 40px; font-size: .85rem; }
.toc-list .toc-l3 a { padding-left: 54px; font-size: .85rem; }
.post-content h1, .post-content h2, .post-content h3, .post-content h4 { scroll-margin-top: 84px; }

@media (min-width: 1140px) {
  .post-layout { grid-template-columns: minmax(0, 1fr) minmax(0, 740px) minmax(0, 1fr); }
  .post-toc { grid-column: 1; grid-row: 1; justify-self: end; width: 210px; margin: 0 36px 0 0; padding: 0; border: 0; background: none; position: sticky; top: 92px; align-self: start; max-height: calc(100vh - 120px); overflow-y: auto; border-left: 1px solid var(--line); padding-left: 0; }
  .post-toc .toc-title { padding-left: 14px; }
  .post-main { grid-column: 2; grid-row: 1; }
  .toc-list { border-left: 0; }
}

/* Categories in the post sidebar */
.post-cats { margin-top: 20px; }
.post-toc > div:first-child:not([hidden]) + .post-cats { margin-top: 24px; }
.cat-list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.cat-list li { padding: 3px 11px; border: 1px solid var(--line); border-radius: 999px; background: #fff; color: var(--muted); font-size: .8rem; font-weight: 600; }
@media (min-width: 1140px) {
  .post-cats .toc-title { padding-left: 14px; }
  .post-cats .cat-list { padding-left: 14px; }
}

/* Card thumbnail: full-height panel on the right edge */
.card-inner { display: flex; align-items: stretch; flex: 1; min-height: 0; }
.card-inner .card-body { min-width: 0; }
.card-thumb { flex: 0 0 34%; max-width: 190px; margin: 8px; position: relative; overflow: hidden; border-radius: 6px; background: var(--bg-soft); border: 1px solid var(--line); }
.card-thumb:hover { text-decoration: none; }
.card-thumb img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: top center; display: block; transition: transform .25s; }
.card:hover .card-thumb img { transform: scale(1.04); }

.featured .card-inner { flex: 1; }
.featured .card-thumb { flex-basis: 34%; max-width: 340px; margin: 12px; border-radius: 8px; border-color: rgba(255, 255, 255, .15); background: rgba(255, 255, 255, .06); }

@media (max-width: 520px) {
  .card-thumb { flex-basis: 30%; max-width: 110px; }
}