/* ==========================================================================
   Alex Nek — blog stylesheet
   A design system: tokens first, then components that only reference tokens.
   Loaded by DocFX's "modern" template via public/main.css (build.ps1 copies
   src/public/main.css there), on top of Bootstrap 5.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Fraunces:opsz,wght@9..144,500;9..144,600;9..144,700&display=swap');

/* ==========================================================================
   1. Design tokens
   ========================================================================== */

:root {
  color-scheme: light;

  /* --- palette: warm stone neutrals + a single accent ------------------- */
  --bg: #ffffff;
  --canvas: #f7f6f4;
  --surface: #ffffff;
  --surface-2: #faf9f8;
  --text: #1a1614;
  --text-muted: #6b6560;
  --text-faint: #97908a;
  --border: #e8e4df;
  --border-strong: #d9d3cc;
  --accent: #ea580c;
  --accent-hover: #c2410c;
  --accent-soft: #fff2e8;
  --accent-ink: #ffffff;
  --accent-ring: rgba(234, 88, 12, 0.35);
  --code-bg: #faf9f8;

  /* navbar: translucent surface that the page scrolls under */
  --nav-bg: rgba(255, 255, 255, 0.92);

  /* --- typography ------------------------------------------------------- */
  --font-sans: 'Inter', ui-sans-serif, system-ui, 'Segoe UI', sans-serif;
  --font-display: 'Fraunces', 'Iowan Old Style', Georgia, serif;
  --font-mono: 'Cascadia Code', 'JetBrains Mono', Consolas, monospace;

  --fs-display: clamp(2.5rem, 1.5rem + 3.6vw, 3.9rem);
  --fs-h1: clamp(2rem, 1.5rem + 1.9vw, 2.8rem);
  --fs-h2: 1.375rem;
  --fs-h3: 1.125rem;
  --fs-lead: 1.125rem;
  --fs-body: 1.0625rem;
  --fs-sm: 0.9375rem;
  --fs-xs: 0.8125rem;
  --fs-eyebrow: 0.75rem;

  --lh-tight: 1.12;
  --lh-head: 1.3;
  --lh-body: 1.75;

  /* --- spacing scale ---------------------------------------------------- */
  --s-1: 4px;
  --s-2: 8px;
  --s-3: 12px;
  --s-4: 16px;
  --s-5: 24px;
  --s-6: 32px;
  --s-7: 40px;
  --s-8: 56px;
  --s-9: 80px;
  --s-10: 112px;

  /* --- radii ------------------------------------------------------------ */
  --r-xs: 6px;
  --r-sm: 10px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-xl: 28px;
  --r-pill: 999px;

  /* --- elevation -------------------------------------------------------- */
  --sh-1: 0 1px 2px rgba(26, 22, 20, 0.05);
  --sh-2: 0 1px 2px rgba(26, 22, 20, 0.04), 0 8px 24px -10px rgba(26, 22, 20, 0.12);
  --sh-3: 0 2px 4px rgba(26, 22, 20, 0.05), 0 22px 44px -16px rgba(26, 22, 20, 0.20);

  /* --- motion ----------------------------------------------------------- */
  --t-1: 120ms;
  --t-2: 220ms;
  --t-3: 380ms;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);

  /* --- layout ----------------------------------------------------------- */
  --wrap: 1140px;
  --measure: 70ch;
  --nav-h: 64px;
  --gutter: clamp(16px, 4vw, 40px);

  /* --- category accent colors (for hover borders) ---------------------- */
  --cat-blazor: #8b5cf6;
  --cat-ai: #ec4899;
  --cat-software: #06b6d4;
  --cat-architecture: #f59e0b;
  --cat-testing: #10b981;
}

/* DocFX's theme switcher only flips data-bs-theme on <html>, so the dark
   palette has to be declared here as well. */
[data-bs-theme="dark"] {
  color-scheme: dark;

  --bg: #0f0d0c;
  --canvas: #161312;
  --surface: #1a1715;
  --surface-2: #221e1c;
  --text: #f3f0ea;
  --text-muted: #a89f97;
  --text-faint: #7d756d;
  --border: #2f2a26;
  --border-strong: #403a35;
  --accent: #fb923c;
  --accent-hover: #fdba74;
  --accent-soft: #2a1c12;
  --accent-ink: #1a1614;
  --accent-ring: rgba(251, 146, 60, 0.4);
  --code-bg: #171413;

  --nav-bg: rgba(15, 13, 12, 0.88);

  --sh-1: 0 1px 2px rgba(0, 0, 0, 0.5);
  --sh-2: 0 1px 2px rgba(0, 0, 0, 0.4), 0 10px 26px -12px rgba(0, 0, 0, 0.7);
  --sh-3: 0 2px 6px rgba(0, 0, 0, 0.45), 0 24px 48px -18px rgba(0, 0, 0, 0.8);
}

/* ==========================================================================
   2. Base
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  /* keep anchored headings clear of the sticky navbar */
  scroll-padding-top: calc(var(--nav-h) + var(--s-5));
  -webkit-text-size-adjust: 100%;
}

/* Bootstrap is loaded by the DocFX template; retargeting its custom properties
   is cleaner than fighting it with !important. */
body {
  --bs-body-bg: var(--bg);
  --bs-body-color: var(--text);
  --bs-emphasis-color: var(--text);
  --bs-secondary-color: var(--text-muted);
  --bs-tertiary-color: var(--text-faint);
  --bs-border-color: var(--border);
  --bs-body-font-family: var(--font-sans);
  --bs-body-font-size: var(--fs-body);
  --bs-body-line-height: var(--lh-body);
  --bs-link-color: var(--accent);
  --bs-link-hover-color: var(--accent-hover);
  --bs-link-decoration: none;
  --bs-link-hover-decoration: none;
  --bs-code-color: var(--accent);
  --bs-highlight-bg: var(--accent-soft);

  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--text);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}

h1, h2, h3, h4 {
  font-family: var(--font-sans);
  letter-spacing: -0.015em;
  color: var(--text);
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--t-1) var(--ease);
}

a:hover {
  color: var(--accent-hover);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--r-xs);
}

::selection {
  background: var(--accent-soft);
  color: var(--text);
}

/* ==========================================================================
   2.1 Background effects: dot grid + floating orbs
   ========================================================================== */

.dot-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(148, 163, 184, 0.12) 1px, transparent 0);
  background-size: 32px 32px;
  -webkit-mask-image: radial-gradient(ellipse 90% 50% at 50% 0%, black 20%, transparent 70%);
  mask-image: radial-gradient(ellipse 90% 50% at 50% 0%, black 20%, transparent 70%);
}

[data-bs-theme="dark"] .dot-grid {
  background-image: radial-gradient(circle at 1px 1px, rgba(148, 163, 184, 0.08) 1px, transparent 0);
}

.orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.15;
  pointer-events: none;
  z-index: 0;
}

.orb-1 {
  width: 480px;
  height: 480px;
  background: var(--accent);
  top: -160px;
  right: -100px;
}

.orb-2 {
  width: 400px;
  height: 400px;
  background: var(--cat-blazor);
  top: 40vh;
  left: -180px;
  opacity: 0.08;
}

[data-bs-theme="dark"] .orb {
  opacity: 0.12;
}

[data-bs-theme="dark"] .orb-2 {
  opacity: 0.06;
}

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

/* ==========================================================================
   3. Page frame
   ========================================================================== */

main.container-xxl {
  display: block;
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: var(--s-7) var(--gutter) var(--s-9);
}

/* an article is a reading measure, not a dashboard. :has(#post-nav) detects a
   post page without depending on JavaScript — the marker only exists in posts. */
main:has(#post-nav) {
  max-width: 780px;
  padding-top: var(--s-8);
}

.content {
  width: 100%;
  padding: 0;
}

/* DocFX chrome we do not want on a blog */
.toc-offcanvas,
.actionbar,
.affix,
.contribution,
.next-article,
form.search,
#breadcrumb {
  display: none !important;
}

/* ==========================================================================
   4. Navbar
   ========================================================================== */

header.bg-body {
  position: sticky;
  top: 0;
  z-index: 1040;
  height: var(--nav-h);
  background-color: var(--nav-bg) !important;
  border-bottom: 1px solid var(--border) !important;
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
}

nav#autocollapse,
nav#autocollapse .container-xxl {
  height: 100%;
  max-width: var(--wrap);
  padding: 0 var(--gutter);
  margin: 0 auto;
}

.navbar-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text) !important;
}

.navbar-brand img#logo {
  display: none;
}

.navbar-brand::before {
  content: 'AN';
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: var(--r-sm);
  background: linear-gradient(140deg, var(--accent), #f5b23c);
  color: #ffffff;
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.02em;
  box-shadow: var(--sh-2);
}

.navbar-brand::after {
  content: "Alex Nek";
}

#navbar .nav-link {
  padding: var(--s-2) var(--s-4) !important;
  border-radius: var(--r-pill);
  color: var(--text-muted) !important;
  font-size: var(--fs-sm);
  font-weight: 500;
  transition: color var(--t-1) var(--ease), background-color var(--t-1) var(--ease);
}

#navbar .nav-link:hover {
  color: var(--text) !important;
  background-color: var(--surface-2);
}

/* ===== Language switcher ===== */
.lang-switcher-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  margin-left: var(--s-3);
  padding: var(--s-2) var(--s-4) !important;
  border: 1px solid var(--border-strong);
  border-radius: var(--r-pill);
  background-color: var(--surface);
  color: var(--text) !important;
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: border-color var(--t-1) var(--ease), color var(--t-1) var(--ease),
              background-color var(--t-1) var(--ease);
}

.lang-switcher-btn:hover {
  border-color: var(--accent);
  background-color: var(--accent-soft);
  color: var(--accent) !important;
}

/* ===== Reading progress ===== */
.read-progress {
  position: fixed;
  top: var(--nav-h);
  left: 0;
  right: 0;
  height: 2px;
  z-index: 1039;
  background: transparent;
  pointer-events: none;
}

.read-progress-bar {
  display: block;
  height: 100%;
  width: var(--progress, 0%);
  background: linear-gradient(90deg, var(--accent), #f5b23c);
  transition: width var(--t-1) linear;
}

/* ==========================================================================
   5. Landing — hero
   ========================================================================== */

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  align-items: center;
  gap: var(--s-8);
  padding: clamp(var(--s-7), 5vw, var(--s-9));
  margin-bottom: var(--s-9);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  background:
    radial-gradient(120% 150% at 88% -10%, var(--accent-soft) 0%, transparent 58%),
    var(--canvas);
  box-shadow: var(--sh-2);
  overflow: clip;
}

.hero-text {
  min-width: 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  margin: 0 0 var(--s-4);
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.eyebrow::before {
  content: '';
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
}

.hero-title {
  font-family: var(--font-display);
  font-size: var(--fs-display);
  font-weight: 600;
  line-height: var(--lh-tight);
  letter-spacing: -0.025em;
  margin: 0 0 var(--s-4);
}

.hero-title em {
  font-style: italic;
  color: var(--accent);
}

/* Typing cursor animation */
.typing-cursor {
  display: inline-block;
  width: 3px;
  height: 0.85em;
  background: var(--accent);
  margin-left: 4px;
  border-radius: 2px;
  animation: blink 1s step-end infinite;
  vertical-align: baseline;
}

@keyframes blink {
  50% { opacity: 0; }
}

.hero-lead {
  max-width: 46ch;
  margin: 0 0 var(--s-6);
  font-size: var(--fs-lead);
  line-height: 1.65;
  color: var(--text-muted);
}

.hero-topics {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.topic-tag {
  padding: var(--s-1) var(--s-3);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-pill);
  background-color: var(--surface);
  color: var(--text-muted);
  font-size: var(--fs-xs);
  font-weight: 500;
}

/* ---- spotlight: the newest post, promoted inside the hero ---- */
.spotlight {
  min-width: 0;
  overflow: hidden;
}

.spotlight-label {
  margin: 0 0 var(--s-3);
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.spotlight-card {
  display: block;
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background-color: var(--surface);
  box-shadow: var(--sh-2);
  overflow: hidden;
  transition: transform var(--t-2) var(--ease), box-shadow var(--t-2) var(--ease);
  color: inherit;
}

.spotlight-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--sh-3);
  color: inherit;
}

.spotlight-card img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: transform var(--t-3) var(--ease);
}

.spotlight-card:hover img {
  transform: scale(1.03);
}

.spotlight-body {
  padding: var(--s-5);
}

.spotlight-body h3 {
  margin: 0 0 var(--s-2);
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  line-height: var(--lh-head);
  letter-spacing: -0.015em;
}

.spotlight-body p {
  margin: 0 0 var(--s-3);
  color: var(--text-muted);
  font-size: var(--fs-sm);
  line-height: 1.6;
}

/* ==========================================================================
   6. Landing — filter bar, post grid, pagination
   ========================================================================== */

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--s-4);
  margin-bottom: var(--s-5);
  padding-bottom: var(--s-3);
  border-bottom: 1px solid var(--border);
}

.section-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.kicker {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 0.05em;
  font-weight: 500;
}

.post-count {
  font-size: var(--fs-xs);
  color: var(--text-faint);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

#filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  margin-bottom: var(--s-6);
}

.filter-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  padding: var(--s-2) var(--s-4);
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background-color: var(--surface);
  color: var(--text-muted);
  font-family: inherit;
  font-size: var(--fs-xs);
  font-weight: 500;
  cursor: pointer;
  transition: background-color var(--t-1) var(--ease), border-color var(--t-1) var(--ease),
              color var(--t-1) var(--ease);
}

.filter-pill:hover {
  border-color: var(--border-strong);
  color: var(--text);
}

.filter-pill.active {
  background-color: var(--text);
  border-color: var(--text);
  color: var(--bg);
}

.filter-pill .count {
  font-size: 0.6875rem;
  font-variant-numeric: tabular-nums;
  opacity: 0.65;
}

.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--s-5);
}

.post-card {
  display: flex;
  flex-direction: column;
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background-color: var(--surface);
  overflow: hidden;
  transition: transform var(--t-2) var(--ease), box-shadow var(--t-2) var(--ease),
              border-color var(--t-2) var(--ease);
}

.post-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
  box-shadow: var(--sh-3);
}

/* Category-colored hover borders */
.post-card.cat-blazor:hover {
  border-color: var(--cat-blazor);
  box-shadow: 0 18px 46px -14px rgba(139, 92, 246, 0.35);
}

.post-card.cat-ai:hover {
  border-color: var(--cat-ai);
  box-shadow: 0 18px 46px -14px rgba(236, 72, 153, 0.35);
}

.post-card.cat-software:hover {
  border-color: var(--cat-software);
  box-shadow: 0 18px 46px -14px rgba(6, 182, 212, 0.3);
}

.post-card.cat-architecture:hover {
  border-color: var(--cat-architecture);
  box-shadow: 0 18px 46px -14px rgba(245, 158, 11, 0.3);
}

.post-card.cat-testing:hover {
  border-color: var(--cat-testing);
  box-shadow: 0 18px 46px -14px rgba(16, 185, 129, 0.3);
}

.post-card-media {
  display: block;
  position: relative;
  aspect-ratio: 16 / 9;
  background-color: var(--canvas);
  overflow: hidden;
}

.post-card-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--t-3) var(--ease);
}

.post-card:hover .post-card-media img {
  transform: scale(1.04);
}

.post-card-kicker {
  position: absolute;
  top: var(--s-3);
  left: var(--s-3);
  padding: 4px 10px;
  border-radius: var(--r-pill);
  background-color: rgba(255, 255, 255, 0.95);
  color: #1a1614;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  backdrop-filter: blur(8px);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.18);
  z-index: 1;
}

[data-bs-theme="dark"] .post-card-kicker {
  background-color: rgba(15, 13, 12, 0.82);
  color: #f3f0ea;
}

.post-card-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: var(--s-5);
}

.post-card-title {
  margin: 0 0 var(--s-3);
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  line-height: var(--lh-head);
  letter-spacing: -0.02em;
}

/* stretched link: the whole card is the target, the title stays the a11y name */
.post-card-title a {
  color: var(--text);
}

.post-card-title a::after {
  content: '';
  position: absolute;
  inset: 0;
}

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

.post-card-excerpt {
  flex: 1;
  margin: 0 0 var(--s-4);
  color: var(--text-muted);
  font-size: var(--fs-sm);
  line-height: 1.65;
}

.post-card-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--s-2);
  margin: 0;
  padding-top: var(--s-4);
  border-top: 1px solid var(--border);
  color: var(--text-faint);
  font-size: var(--fs-xs);
  font-variant-numeric: tabular-nums;
}

.post-card-meta .dot::before {
  content: '·';
  margin: 0 var(--s-1);
  color: var(--border-strong);
}

.post-card-tags {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  margin: 0 0 var(--s-4);
  padding: 0;
  list-style: none;
}

/* ===== Tag chips ===== */
.tag-chip {
  display: inline-block;
  padding: 2px var(--s-3);
  border-radius: var(--r-pill);
  background-color: var(--accent-soft);
  color: var(--accent);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--t-1) var(--ease), color var(--t-1) var(--ease);
}

.tag-chip:hover {
  background-color: var(--accent);
  color: var(--accent-ink);
}

/* ===== Pagination ===== */
#pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--s-2);
  margin-top: var(--s-8);
}

.page-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  height: 2.5rem;
  padding: 0 var(--s-3);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  background-color: var(--surface);
  color: var(--text-muted);
  font-size: var(--fs-sm);
  font-weight: 500;
  text-decoration: none;
  transition: background-color var(--t-1) var(--ease), border-color var(--t-1) var(--ease),
              color var(--t-1) var(--ease);
}

a.page-link:hover {
  border-color: var(--accent);
  background-color: var(--accent-soft);
  color: var(--accent);
}

.page-link.active {
  background-color: var(--text);
  border-color: var(--text);
  color: var(--bg);
  pointer-events: none;
}

.page-link.disabled {
  opacity: 0.4;
  pointer-events: none;
}

/* ===== Active tag filter notice ===== */
.active-tag-filter {
  margin-top: var(--s-5);
  padding: var(--s-3) var(--s-5);
  border: 1px dashed var(--border-strong);
  border-radius: var(--r-md);
  background-color: var(--canvas);
  font-size: var(--fs-sm);
  color: var(--text-muted);
}

.active-tag-filter strong {
  color: var(--text);
}

.active-tag-filter a {
  margin-left: var(--s-3);
  font-weight: 600;
}

.empty-state {
  padding: var(--s-8);
  border: 1px dashed var(--border-strong);
  border-radius: var(--r-lg);
  background-color: var(--canvas);
  text-align: center;
  color: var(--text-muted);
}

/* ==========================================================================
   7. Article page — header
   ========================================================================== */

.post-head {
  margin-bottom: var(--s-6);
}

.post-head-title {
  font-family: var(--font-display);
  font-size: var(--fs-h1);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.025em;
  margin: 0 0 var(--s-4);
  text-wrap: balance;
}

.post-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--s-2);
  margin: 0 0 var(--s-4);
  color: var(--text-faint);
  font-size: var(--fs-sm);
  font-variant-numeric: tabular-nums;
}

.post-meta .dot::before {
  content: '·';
  margin: 0 var(--s-2);
  color: var(--border-strong);
}

.post-meta .view-counter {
  display: inline-flex;
  align-items: center;
  gap: 0.3em;
  white-space: nowrap;
}

.post-meta .view-counter-icon {
  font-size: 0.9em;
  opacity: 0.7;
}

.post-meta .view-counter-count {
  font-variant-numeric: tabular-nums;
}

.post-head .tag-chip {
  font-size: var(--fs-xs);
  padding: var(--s-1) var(--s-3);
}

.post-head-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.post-cover {
  margin: var(--s-6) 0 var(--s-8);
  padding: 0;
}

.post-cover img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--sh-2);
}

.post-cover figcaption {
  margin-top: var(--s-3);
  font-size: var(--fs-xs);
  color: var(--text-faint);
  text-align: center;
}

/* ==========================================================================
   8. Article page — prose
   Every rule is scoped to :where(article:has(#post-nav)) — DocFX wraps the
   landing page in <article> too, so unscoped prose rules leak onto the post
   cards. :where() keeps the scope at zero specificity, so component classes
   still win over it.
   ========================================================================== */

:where(article:has(#post-nav)) {
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--text);
}

:where(article:has(#post-nav)) > *:first-child {
  margin-top: 0;
}

:where(article:has(#post-nav)) p {
  margin: 0 0 var(--s-5);
}

:where(article:has(#post-nav)) h2 {
  margin: var(--s-8) 0 var(--s-4);
  font-size: var(--fs-h2);
  font-weight: 600;
  line-height: var(--lh-head);
  letter-spacing: -0.02em;
}

/* editorial marker above every section heading */
:where(article:has(#post-nav)) h2::before {
  content: '';
  display: block;
  width: 28px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent);
  margin-bottom: var(--s-4);
}

:where(article:has(#post-nav)) h3 {
  margin: var(--s-7) 0 var(--s-3);
  font-size: var(--fs-h3);
  font-weight: 600;
  line-height: var(--lh-head);
}

:where(article:has(#post-nav)) h4 {
  margin: var(--s-6) 0 var(--s-2);
  font-size: var(--fs-body);
  font-weight: 600;
}

:where(article:has(#post-nav)) ul,
:where(article:has(#post-nav)) ol {
  margin: 0 0 var(--s-5);
  padding-left: 1.4rem;
}

:where(article:has(#post-nav)) li {
  margin-bottom: var(--s-2);
  padding-left: var(--s-1);
}

:where(article:has(#post-nav)) li::marker {
  color: var(--text-faint);
}

:where(article:has(#post-nav)) ul ul,
:where(article:has(#post-nav)) ol ol,
:where(article:has(#post-nav)) ul ol,
:where(article:has(#post-nav)) ol ul {
  margin: var(--s-2) 0 0;
}

/* image captions are written as a lone italic line under the picture */
:where(article:has(#post-nav)) p > em:only-child {
  display: block;
  margin-top: calc(var(--s-4) * -1 + 2px);
  margin-bottom: var(--s-6);
  font-size: var(--fs-xs);
  font-style: normal;
  color: var(--text-faint);
  letter-spacing: 0.01em;
}

:where(article:has(#post-nav)) a {
  color: var(--accent);
  font-weight: 500;
  text-decoration: underline;
  text-decoration-color: var(--border-strong);
  text-underline-offset: 3px;
  transition: text-decoration-color var(--t-1) var(--ease), color var(--t-1) var(--ease);
}

:where(article:has(#post-nav)) a:hover {
  color: var(--accent-hover);
  text-decoration-color: currentColor;
}

:where(article:has(#post-nav)) strong {
  font-weight: 600;
  color: var(--text);
}

/* ===== Images in prose ===== */
:where(article:has(#post-nav)) img {
  display: block;
  margin: var(--s-6) auto;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  box-shadow: var(--sh-1);
}

/* ===== Blockquote ===== */
:where(article:has(#post-nav)) blockquote {
  margin: var(--s-6) 0;
  padding: var(--s-4) var(--s-5);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  background-color: var(--canvas);
  color: var(--text-muted);
  font-size: var(--fs-body);
}

:where(article:has(#post-nav)) blockquote p {
  margin: 0;
}

:where(article:has(#post-nav)) blockquote p + p {
  margin-top: var(--s-3);
}

/* ===== Code ===== */
code, kbd, pre {
  font-family: var(--font-mono);
}

pre {
  margin: var(--s-5) 0 var(--s-6);
  padding: var(--s-4) var(--s-5);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background-color: var(--code-bg);
  color: var(--text);
  font-size: var(--fs-xs);
  line-height: 1.7;
  overflow-x: auto;
}

pre code {
  background: none;
  border: 0;
  padding: 0;
  color: inherit;
  font-size: inherit;
}

:not(pre) > code {
  padding: 0.12em 0.42em;
  border: 1px solid var(--border);
  border-radius: var(--r-xs);
  background-color: var(--code-bg);
  color: var(--accent);
  font-size: 0.875em;
}

/* highlight.js ships with the DocFX template — keep it on our surface */
.hljs {
  background: transparent;
  color: var(--text);
  padding: 0;
}

/* ===== Tables ===== */
:where(article:has(#post-nav)) table {
  width: 100%;
  margin: var(--s-5) 0 var(--s-6);
  border-collapse: collapse;
  font-size: var(--fs-sm);
}

:where(article:has(#post-nav)) th,
:where(article:has(#post-nav)) td {
  padding: var(--s-3) var(--s-4);
  border-bottom: 1px solid var(--border);
  text-align: left;
}

:where(article:has(#post-nav)) th {
  background-color: var(--canvas);
  color: var(--text-muted);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

:where(article:has(#post-nav)) tbody tr:hover {
  background-color: var(--surface-2);
}

/* ===== Horizontal rule ===== */
:where(article:has(#post-nav)) hr {
  margin: var(--s-8) 0;
  border: 0;
  border-top: 1px solid var(--border);
}

/* ==========================================================================
   9. Article page — prev / next
   ========================================================================== */

#post-nav {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  gap: var(--s-4);
  align-items: stretch;
  margin-top: var(--s-9);
  padding-top: var(--s-6);
  border-top: 1px solid var(--border);
}

.pn-card {
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
  padding: var(--s-4) var(--s-5);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background-color: var(--surface);
  color: var(--text);
  transition: border-color var(--t-1) var(--ease), transform var(--t-2) var(--ease),
              box-shadow var(--t-2) var(--ease);
}

.pn-card:hover {
  border-color: var(--accent);
  box-shadow: var(--sh-2);
  transform: translateY(-2px);
  color: var(--text);
}

.pn-card.next {
  text-align: right;
  align-items: flex-end;
}

.pn-label {
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.pn-title {
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  font-weight: 600;
  line-height: 1.4;
  color: var(--text);
}

.pn-home {
  display: flex;
  align-items: center;
}

.pn-home a {
  display: inline-flex;
  align-items: center;
  height: 100%;
  padding: 0 var(--s-4);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background-color: var(--canvas);
  color: var(--text-muted);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.pn-home a:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ==========================================================================
   10. Footer
   ========================================================================== */

/* DocFX ships `body > footer { padding: 1rem 0; height: 60px }`, so the
   selector has to match that shape to win. */
body > footer {
  position: relative;
  overflow: clip;
  height: auto;
  margin-top: var(--s-9);
  padding: var(--s-7) 0 var(--s-9);
  border-top: 1px solid var(--border);
  background-color: var(--canvas);
  color: var(--text-muted);
  font-size: var(--fs-sm);
  text-align: center;
}

/* The banner artwork is decoration, not interface — it has no business behind
   clickable controls, so it runs along the bottom of the footer, fading up
   into the surface. */
footer::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 72px;
  background-image: url('../images/navbar-banner.png');
  background-position: center bottom;
  background-size: auto 100%;
  background-repeat: repeat-x;
  opacity: 0.2;
  -webkit-mask-image: linear-gradient(to top, #000, transparent);
  mask-image: linear-gradient(to top, #000, transparent);
  pointer-events: none;
}

footer .container-xxl {
  position: relative;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

footer a {
  color: var(--text-muted);
  text-decoration: underline;
  text-decoration-color: var(--border-strong);
  text-underline-offset: 3px;
}

footer a:hover {
  color: var(--accent);
  text-decoration-color: currentColor;
}

/* ==========================================================================
   11. Responsive
   ========================================================================== */

@media (max-width: 960px) {
  .hero {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--s-7);
  }
}

@media (max-width: 720px) {
  :root {
    --nav-h: 58px;
  }

  main.container-xxl {
    padding: var(--s-6) var(--s-4) var(--s-8);
  }

  .hero {
    padding: var(--s-6) var(--s-5);
    border-radius: var(--r-lg);
    margin-bottom: var(--s-8);
  }

  .post-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  #post-nav {
    grid-template-columns: minmax(0, 1fr);
  }

  .pn-card.next {
    text-align: left;
    align-items: flex-start;
  }

  .section-head {
    flex-direction: column;
    gap: var(--s-1);
  }
}

/* ==========================================================================
   11.5 Reveal on scroll animation
   ========================================================================== */

/* .reveal starts visible; main.js adds .js-ready to <body> once it loads,
   at which point .reveal hides elements until the IntersectionObserver
   adds .in.  This guarantees content is visible even if main.js fails. */
.js-ready .reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s cubic-bezier(0.22, 0.61, 0.36, 1),
              transform 0.7s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.js-ready .reveal.in {
  opacity: 1;
  transform: none;
}

/* ==========================================================================
   12. Motion & print
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .js-ready .reveal {
    opacity: 1;
    transform: none;
  }
}

@media print {
  header.bg-body,
  #filter-bar,
  #pagination,
  #post-nav,
  .read-progress,
  .view-counter,
  footer {
    display: none !important;
  }
}