/* theavocoder.com theme
   Built on a self hosted Bulma layer with a site specific token set.
   Palette and typography are inherited from the original Lydia Hallie site. */

:root {
  --avc-bg: #121212;
  --avc-bg-deep: #0d0d0d;
  --avc-panel: #1a1a1a;
  --avc-panel-2: #202020;
  --avc-line: rgba(255, 255, 255, 0.11);
  --avc-line-strong: rgba(255, 255, 255, 0.22);
  --avc-text: #cbc6bd;
  --avc-text-soft: #a49e94;
  --avc-heading: #f4efe6;
  --avc-accent: #ff9a8a;
  --avc-accent-strong: #ff7c68;
  --avc-accent-ink: #1d1010;
  --avc-accent-soft: rgba(255, 154, 138, 0.14);
  --avc-olive: #b8c98e;
  --avc-olive-soft: rgba(184, 201, 142, 0.15);
  --avc-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --avc-display: "Jost", "Futura", "Century Gothic", "Trebuchet MS", sans-serif;
  --avc-body: "Lato", "Helvetica Neue", Arial, sans-serif;
  --avc-radius: 2px;
  --avc-radius-lg: 4px;
  --avc-wrap: 1240px;
  --avc-gutter: clamp(1.1rem, 4vw, 2.5rem);
  --avc-section: clamp(4rem, 9vw, 7rem);
  --avc-ease: cubic-bezier(0.2, 0.7, 0.2, 1);

  --bulma-family-primary: var(--avc-body);
  --bulma-body-background-color: var(--avc-bg);
  --bulma-text: var(--avc-text);
  --bulma-text-strong: var(--avc-heading);
  --bulma-link: var(--avc-accent);
  --bulma-link-hover: var(--avc-accent-strong);
  --bulma-primary: var(--avc-accent);
  --bulma-radius: var(--avc-radius);
  --bulma-radius-small: var(--avc-radius);
  --bulma-size-normal: 1.0625rem;
  --bulma-strong-color: var(--avc-heading);
}

html {
  scroll-behavior: smooth;
  background: var(--avc-bg);
}

body.avc-body {
  background:
    radial-gradient(60rem 36rem at 88% -8%, rgba(255, 154, 138, 0.08), transparent 62%),
    radial-gradient(46rem 32rem at 4% 12%, rgba(184, 201, 142, 0.05), transparent 60%),
    var(--avc-bg);
  color: var(--avc-text);
  font-family: var(--avc-body);
  font-size: 1.0625rem;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body.avc-body.is-locked {
  overflow: hidden;
}

::selection {
  background: var(--avc-accent);
  color: var(--avc-accent-ink);
}

a {
  color: var(--avc-accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
  transition: color 140ms var(--avc-ease), border-color 140ms var(--avc-ease);
}

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

h1, h2, h3, h4, h5, .avc-display {
  font-family: var(--avc-display);
  color: var(--avc-heading);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.12;
}

h1 { font-size: clamp(2.35rem, 5.6vw, 4.4rem); }
h2 { font-size: clamp(1.75rem, 3.4vw, 2.65rem); }
h3 { font-size: clamp(1.28rem, 2.1vw, 1.6rem); }
h4 { font-size: 1.14rem; }

p { margin-bottom: 1.15rem; }

strong { color: var(--avc-heading); font-weight: 700; }

hr {
  background: var(--avc-line);
  height: 1px;
  border: 0;
  margin: 2.5rem 0;
}

code, kbd, pre, samp {
  font-family: var(--avc-mono);
  font-size: 0.9em;
}

:not(pre) > code {
  background: var(--avc-panel-2);
  border: 1px solid var(--avc-line);
  border-radius: var(--avc-radius);
  padding: 0.12em 0.36em;
  color: var(--avc-olive);
}

pre {
  background: var(--avc-bg-deep);
  border: 1px solid var(--avc-line);
  border-radius: var(--avc-radius);
  padding: 1.15rem 1.25rem;
  overflow-x: auto;
  line-height: 1.65;
  color: #d8d3ca;
  position: relative;
}

pre code {
  background: none;
  border: 0;
  padding: 0;
  color: inherit;
  white-space: pre;
}

blockquote {
  border-left: 2px solid var(--avc-accent);
  background: var(--avc-accent-soft);
  margin: 2rem 0;
  padding: 1rem 1.35rem;
  color: var(--avc-heading);
  font-family: var(--avc-display);
  font-size: 1.14rem;
  line-height: 1.55;
}

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

.avc-skip {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 2000;
  background: var(--avc-accent);
  color: var(--avc-accent-ink);
  padding: 0.65rem 1rem;
  border-radius: var(--avc-radius);
  font-weight: 700;
}

.avc-skip:focus { top: 1rem; color: var(--avc-accent-ink); }

.avc-wrap {
  width: min(100% - (var(--avc-gutter) * 2), var(--avc-wrap));
  margin-inline: auto;
}

.avc-section {
  padding-block: var(--avc-section);
}

.avc-section--tight { padding-block: clamp(2.6rem, 6vw, 4rem); }

.avc-overline {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--avc-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.19em;
  text-transform: uppercase;
  color: var(--avc-accent);
  margin-bottom: 1.1rem;
}

.avc-overline::before {
  content: "";
  width: 1.8rem;
  height: 1px;
  background: var(--avc-accent);
  opacity: 0.75;
}

.avc-muted { color: var(--avc-text-soft); }
.avc-small { font-size: 0.9rem; }
.avc-mono { font-family: var(--avc-mono); }

.avc-lede {
  font-size: clamp(1.08rem, 1.5vw, 1.24rem);
  line-height: 1.72;
  color: var(--avc-text-soft);
  max-width: 62ch;
}

.avc-label {
  font-family: var(--avc-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--avc-text-soft);
}

/* Header */

.avc-header {
  position: sticky;
  top: 0;
  z-index: 1200;
  border-bottom: 1px solid var(--avc-line);
  background: rgba(18, 18, 18, 0.78);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: background 200ms var(--avc-ease), border-color 200ms var(--avc-ease);
}

.avc-header.is-scrolled {
  background: rgba(14, 14, 14, 0.94);
  border-bottom-color: var(--avc-line-strong);
}

.avc-header-inner {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  min-height: 76px;
}

.avc-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--avc-heading);
  text-decoration: none;
  flex-shrink: 0;
}

.avc-brand:hover { color: var(--avc-heading); }

.avc-brand-mark {
  width: 32px;
  height: 38px;
  color: var(--avc-accent);
  flex-shrink: 0;
}

.avc-brand-name {
  display: block;
  font-family: var(--avc-display);
  font-size: 1.02rem;
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: 0.01em;
}

.avc-brand-sub {
  display: block;
  font-family: var(--avc-mono);
  font-size: 0.58rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--avc-text-soft);
  margin-top: 0.28rem;
}

.avc-nav {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  margin-left: auto;
}

.avc-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0.35rem 0.72rem;
  color: var(--avc-text-soft);
  font-family: var(--avc-mono);
  font-size: 0.68rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: var(--avc-radius);
  border: 1px solid transparent;
}

.avc-nav a:hover {
  color: var(--avc-heading);
  border-color: var(--avc-line);
  background: var(--avc-panel);
}

.avc-nav a[aria-current="page"] {
  color: var(--avc-accent);
  border-color: rgba(255, 154, 138, 0.35);
  background: var(--avc-accent-soft);
}

.avc-header-actions {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin-left: 0.7rem;
}

.avc-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--avc-line);
  border-radius: 50%;
  color: var(--avc-text-soft);
  background: transparent;
  text-decoration: none;
  transition: color 140ms var(--avc-ease), border-color 140ms var(--avc-ease), background 140ms var(--avc-ease);
}

.avc-icon-btn:hover {
  color: var(--avc-heading);
  border-color: var(--avc-line-strong);
  background: var(--avc-panel);
}

.avc-menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--avc-line);
  border-radius: 50%;
  background: transparent;
  color: var(--avc-heading);
  cursor: pointer;
}

.avc-menu-toggle svg { width: 20px; height: 20px; }

/* Buttons */

.avc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  min-height: 46px;
  padding: 0.72rem 1.25rem;
  border: 1px solid transparent;
  border-radius: 999px;
  background: var(--avc-accent);
  color: var(--avc-accent-ink);
  font-family: var(--avc-display);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: background 160ms var(--avc-ease), color 160ms var(--avc-ease), border-color 160ms var(--avc-ease), transform 160ms var(--avc-ease);
}

.avc-btn:hover {
  background: var(--avc-accent-strong);
  color: var(--avc-accent-ink);
  transform: translateY(-1px);
}

.avc-btn svg { width: 15px; height: 15px; }

.avc-btn--ghost {
  background: transparent;
  color: var(--avc-heading);
  border-color: var(--avc-line-strong);
}

.avc-btn--ghost:hover {
  background: var(--avc-panel);
  color: var(--avc-heading);
  border-color: var(--avc-accent);
}

.avc-btn--small {
  min-height: 38px;
  padding: 0.5rem 0.95rem;
  font-size: 0.7rem;
}

.avc-text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--avc-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--avc-accent);
  border-bottom: 1px solid transparent;
  padding-bottom: 0.15rem;
}

.avc-text-link:hover {
  color: var(--avc-accent-strong);
  border-bottom-color: var(--avc-accent-strong);
}

.avc-text-link svg { width: 14px; height: 14px; }

/* Hero */

.avc-hero {
  position: relative;
  padding-top: clamp(3.2rem, 7vw, 5.4rem);
  padding-bottom: clamp(1.6rem, 3.5vw, 3rem);
  overflow: hidden;
}

.avc-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(60% 60% at 50% 35%, #000 18%, transparent 78%);
  -webkit-mask-image: radial-gradient(60% 60% at 50% 35%, #000 18%, transparent 78%);
  pointer-events: none;
}

.avc-hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.avc-hero-grid > *,
.avc-split > *,
.avc-course-layout > *,
.avc-topic-grid > *,
.avc-note-grid > *,
.avc-lesson-grid > *,
.avc-newsletter > *,
.avc-quote-band > * {
  min-width: 0;
}

.avc-hero h1,
.avc-page-hero h1,
.avc-hero p,
.avc-lede,
.avc-prose {
  overflow-wrap: break-word;
}

.avc-hero h1 {
  font-size: clamp(2.7rem, 6.4vw, 5.2rem);
  letter-spacing: -0.025em;
  line-height: 0.98;
  margin-bottom: 1.4rem;
}

.avc-hero h1 em {
  font-style: normal;
  color: var(--avc-accent);
}

.avc-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.8rem;
}

.avc-hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 1.4rem 2rem;
  margin-top: 2.4rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--avc-line);
}

.avc-hero-facts div { min-width: 6.4rem; }

.avc-hero-facts strong {
  display: block;
  font-family: var(--avc-display);
  font-size: 1.5rem;
  line-height: 1;
  color: var(--avc-heading);
  margin-bottom: 0.35rem;
}

.avc-hero-facts span {
  font-family: var(--avc-mono);
  font-size: 0.62rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--avc-text-soft);
}

.avc-code-card {
  position: relative;
  border: 1px solid var(--avc-line-strong);
  border-radius: var(--avc-radius-lg);
  background: linear-gradient(160deg, #1c1c1c, #111);
  overflow: hidden;
}

.avc-code-card::after {
  content: "";
  position: absolute;
  inset: -40% -20% auto auto;
  width: 18rem;
  height: 18rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 154, 138, 0.14), transparent 66%);
  pointer-events: none;
}

.avc-code-bar {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--avc-line);
  background: rgba(255, 255, 255, 0.02);
}

.avc-code-bar i {
  display: block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--avc-line-strong);
}

.avc-code-bar i:first-child { background: var(--avc-accent); }
.avc-code-bar i:nth-child(2) { background: var(--avc-olive); }

.avc-code-bar span {
  margin-left: auto;
  font-family: var(--avc-mono);
  font-size: 0.64rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--avc-text-soft);
}

.avc-code-card pre {
  margin: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  padding: 1.4rem 1.4rem 1.6rem;
  font-size: 0.84rem;
  line-height: 1.8;
  color: #d5d0c7;
}

.avc-code-card .tok-key { color: var(--avc-accent); }
.avc-code-card .tok-str { color: var(--avc-olive); }
.avc-code-card .tok-com { color: #777167; }
.avc-code-card .tok-fn { color: #e8c98f; }

.avc-hero-sticker {
  position: absolute;
  right: clamp(0.5rem, 4vw, 3rem);
  bottom: -0.6rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.8rem;
  border: 1px solid var(--avc-line-strong);
  border-radius: 999px;
  background: var(--avc-bg);
  font-family: var(--avc-mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--avc-text-soft);
}

.avc-hero-sticker b { color: var(--avc-olive); font-weight: 500; }

/* Topic map */

.avc-section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: clamp(1.8rem, 4vw, 2.8rem);
}

.avc-section-head h2 { margin-bottom: 0.5rem; }

.avc-topic-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.avc-topic {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: 1.25rem;
  border: 1px solid var(--avc-line);
  border-radius: var(--avc-radius);
  background: linear-gradient(170deg, rgba(255, 255, 255, 0.025), transparent 55%), var(--avc-panel);
  color: var(--avc-text);
  text-decoration: none;
  overflow: hidden;
  transition: border-color 200ms var(--avc-ease), transform 200ms var(--avc-ease), background 200ms var(--avc-ease);
}

a.avc-topic:hover {
  border-color: rgba(255, 154, 138, 0.5);
  transform: translateY(-4px);
  background: linear-gradient(170deg, rgba(255, 154, 138, 0.07), transparent 55%), var(--avc-panel);
  color: var(--avc-text);
}

.avc-topic-media {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1 / 0.72;
  margin-bottom: 1.1rem;
  border-radius: var(--avc-radius);
  background: radial-gradient(circle at 50% 45%, rgba(255, 255, 255, 0.04), transparent 62%);
  overflow: hidden;
}

.avc-topic-media img {
  width: min(72%, 190px);
  height: auto;
  object-fit: contain;
  filter: saturate(0.95);
  transition: transform 400ms var(--avc-ease);
}

a.avc-topic:hover .avc-topic-media img { transform: scale(1.05) rotate(-1.5deg); }

.avc-topic-num {
  position: absolute;
  top: 0.9rem;
  right: 1rem;
  font-family: var(--avc-mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  color: var(--avc-text-soft);
}

.avc-topic h3 {
  font-size: 1.28rem;
  margin-bottom: 0.45rem;
}

.avc-topic p {
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--avc-text-soft);
  margin-bottom: 1rem;
}

.avc-topic-foot {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--avc-line);
  font-family: var(--avc-mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--avc-text-soft);
}

.avc-topic-foot .avc-topic-go { color: var(--avc-accent); }

.avc-topic--static { cursor: default; }

/* Split feature */

.avc-split {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.avc-syllabus {
  border-top: 1px solid var(--avc-line);
}

.avc-syllabus-row {
  display: grid;
  grid-template-columns: 3.2rem minmax(0, 1fr) auto;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 0.2rem;
  border-bottom: 1px solid var(--avc-line);
  color: var(--avc-text);
  text-decoration: none;
}

.avc-syllabus-row:hover { color: var(--avc-heading); }

.avc-syllabus-row:hover .avc-syllabus-title { color: var(--avc-accent); }

.avc-syllabus-num {
  font-family: var(--avc-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--avc-text-soft);
}

.avc-syllabus-title {
  font-family: var(--avc-display);
  font-size: 1.02rem;
  font-weight: 500;
  line-height: 1.25;
}

.avc-syllabus-meta {
  font-family: var(--avc-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--avc-text-soft);
  white-space: nowrap;
}

/* Course rail */

.avc-course-layout {
  display: grid;
  grid-template-columns: 290px minmax(0, 1fr);
  gap: clamp(2rem, 4vw, 3.5rem);
  align-items: start;
}

.avc-rail {
  position: sticky;
  top: 100px;
  max-height: calc(100vh - 130px);
  overflow: auto;
  padding-right: 0.6rem;
  scrollbar-width: thin;
  scrollbar-color: var(--avc-line-strong) transparent;
}

.avc-rail-head {
  padding-bottom: 0.9rem;
  margin-bottom: 0.8rem;
  border-bottom: 1px solid var(--avc-line);
}

.avc-rail-head a {
  display: block;
  font-family: var(--avc-mono);
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--avc-text-soft);
  text-decoration: none;
  margin-bottom: 0.35rem;
}

.avc-rail-head strong {
  display: block;
  font-family: var(--avc-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--avc-heading);
}

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

.avc-rail-list a {
  display: grid;
  grid-template-columns: 2.1rem minmax(0, 1fr);
  gap: 0.55rem;
  padding: 0.52rem 0.55rem;
  border-left: 1px solid var(--avc-line);
  color: var(--avc-text-soft);
  text-decoration: none;
  font-size: 0.86rem;
  line-height: 1.3;
}

.avc-rail-list a:hover {
  color: var(--avc-heading);
  background: var(--avc-panel);
  border-left-color: var(--avc-accent);
}

.avc-rail-list a[aria-current="page"] {
  color: var(--avc-heading);
  background: var(--avc-accent-soft);
  border-left-color: var(--avc-accent);
}

.avc-rail-list .num {
  font-family: var(--avc-mono);
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  color: var(--avc-text-soft);
  padding-top: 0.18rem;
}

.avc-rail-list a[aria-current="page"] .num { color: var(--avc-accent); }

.avc-rail-mobile { display: none; }

.avc-article-head {
  padding-bottom: 1.6rem;
  border-bottom: 1px solid var(--avc-line);
  margin-bottom: 2rem;
}

.avc-article-head h1 {
  font-size: clamp(2.1rem, 4.4vw, 3.5rem);
  margin-bottom: 0.9rem;
  letter-spacing: -0.02em;
}

.avc-article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1.2rem;
  font-family: var(--avc-mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--avc-text-soft);
}

.avc-article-meta span { display: inline-flex; align-items: center; gap: 0.4rem; }

.avc-article-meta .dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--avc-accent);
}

.avc-prose {
  max-width: 74ch;
  font-size: 1.075rem;
  line-height: 1.82;
}

.avc-prose h2 {
  margin-top: 2.8rem;
  margin-bottom: 1rem;
  padding-top: 0.4rem;
  font-size: clamp(1.5rem, 2.7vw, 2rem);
}

.avc-prose h3 {
  margin-top: 2.2rem;
  margin-bottom: 0.7rem;
  font-size: 1.32rem;
}

.avc-prose h4 {
  margin-top: 1.8rem;
  margin-bottom: 0.6rem;
}

.avc-prose p { margin-bottom: 1.25rem; }

.avc-prose ul, .avc-prose ol {
  margin: 0 0 1.35rem 1.35rem;
  padding: 0;
}

.avc-prose li { margin-bottom: 0.45rem; }

.avc-prose a {
  color: var(--avc-accent);
  text-decoration: underline;
  text-decoration-color: rgba(255, 154, 138, 0.45);
}

.avc-prose a:hover { text-decoration-color: var(--avc-accent-strong); }

.avc-prose a[target="_blank"]::after {
  content: " \2197";
  font-size: 0.75em;
  color: var(--avc-text-soft);
}

.avc-prose figure {
  margin: 1.8rem 0;
  padding: 0.85rem;
  border: 1px solid var(--avc-line);
  border-radius: var(--avc-radius);
  background: var(--avc-panel);
}

.avc-prose figure img {
  display: block;
  width: 100%;
  border-radius: 1px;
  background: var(--avc-bg-deep);
}

.avc-prose figcaption {
  margin-top: 0.7rem;
  font-family: var(--avc-mono);
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  color: var(--avc-text-soft);
}

.avc-prose img {
  border-radius: 1px;
}

.avc-prose hr { margin: 2.6rem 0; }

.avc-prose pre {
  margin: 1.6rem 0;
  font-size: 0.86rem;
}

.avc-prose blockquote { margin: 2rem 0; }

.avc-copy-btn {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  padding: 0.28rem 0.55rem;
  border: 1px solid var(--avc-line);
  border-radius: var(--avc-radius);
  background: var(--avc-panel);
  color: var(--avc-text-soft);
  font-family: var(--avc-mono);
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  opacity: 0;
  transition: opacity 140ms var(--avc-ease), color 140ms var(--avc-ease);
}

pre:hover .avc-copy-btn, .avc-copy-btn:focus { opacity: 1; }
.avc-copy-btn:hover { color: var(--avc-heading); }

.avc-refs {
  margin-top: 3rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--avc-line);
}

.avc-refs h2 {
  font-size: 1.05rem;
  font-family: var(--avc-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--avc-text-soft);
  margin-bottom: 0.9rem;
}

.avc-refs ul { list-style: none; margin: 0; padding: 0; }

.avc-refs li {
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--avc-line);
  font-size: 0.92rem;
}

.avc-refs li a {
  color: var(--avc-heading);
  text-decoration: none;
}

.avc-refs li a:hover { color: var(--avc-accent); }

.avc-refs li span {
  display: block;
  font-size: 0.78rem;
  color: var(--avc-text-soft);
}

.avc-lesson-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 2.8rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--avc-line);
}

.avc-lesson-nav a {
  display: block;
  padding: 1rem 1.1rem;
  border: 1px solid var(--avc-line);
  border-radius: var(--avc-radius);
  background: var(--avc-panel);
  color: var(--avc-text);
  text-decoration: none;
}

.avc-lesson-nav a:hover {
  border-color: var(--avc-accent);
  color: var(--avc-text);
}

.avc-lesson-nav .dir {
  display: block;
  font-family: var(--avc-mono);
  font-size: 0.58rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--avc-text-soft);
  margin-bottom: 0.35rem;
}

.avc-lesson-nav .name {
  font-family: var(--avc-display);
  font-size: 1rem;
  font-weight: 600;
}

.avc-lesson-nav a:last-child { text-align: right; }

.avc-progress {
  position: fixed;
  left: 0;
  top: 0;
  height: 2px;
  width: 0;
  background: var(--avc-accent);
  z-index: 1300;
  transition: width 80ms linear;
}

/* Page hero */

.avc-page-hero {
  padding-top: clamp(3rem, 6vw, 5rem);
  padding-bottom: clamp(2rem, 4vw, 3rem);
  border-bottom: 1px solid var(--avc-line);
}

.avc-page-hero h1 {
  max-width: 18ch;
  margin-bottom: 1rem;
}

.avc-page-hero .avc-lede { max-width: 66ch; }

.avc-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 1.1rem;
  font-family: var(--avc-mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--avc-text-soft);
}

.avc-breadcrumb a { color: var(--avc-text-soft); text-decoration: none; }
.avc-breadcrumb a:hover { color: var(--avc-accent); }
.avc-breadcrumb span { opacity: 0.5; }

.avc-stat-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2.5rem;
  margin-top: 1.6rem;
}

.avc-stat-row div strong {
  display: block;
  font-family: var(--avc-display);
  font-size: 1.35rem;
  color: var(--avc-heading);
}

.avc-stat-row div span {
  font-family: var(--avc-mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--avc-text-soft);
}

/* Lesson cards on collection pages */

.avc-lesson-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.avc-lesson-card {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 1rem;
  align-items: center;
  padding: 0.8rem;
  border: 1px solid var(--avc-line);
  border-radius: var(--avc-radius);
  background: var(--avc-panel);
  color: var(--avc-text);
  text-decoration: none;
  transition: border-color 180ms var(--avc-ease), transform 180ms var(--avc-ease);
}

.avc-lesson-card:hover {
  border-color: rgba(255, 154, 138, 0.45);
  transform: translateY(-2px);
  color: var(--avc-text);
}

.avc-lesson-thumb {
  aspect-ratio: 1;
  border-radius: 1px;
  background: var(--avc-bg-deep);
  border: 1px solid var(--avc-line);
  overflow: hidden;
}

.avc-lesson-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.avc-lesson-card .num {
  display: block;
  font-family: var(--avc-mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  color: var(--avc-accent);
  margin-bottom: 0.25rem;
}

.avc-lesson-card h3 {
  font-size: 1rem;
  line-height: 1.25;
  margin-bottom: 0.3rem;
}

.avc-lesson-card p {
  font-size: 0.78rem;
  line-height: 1.45;
  color: var(--avc-text-soft);
  margin: 0;
}

/* Runtime list */

.avc-runtime-list {
  border-top: 1px solid var(--avc-line);
}

.avc-runtime {
  display: grid;
  grid-template-columns: 7rem minmax(0, 1fr) auto;
  gap: 1.2rem;
  align-items: center;
  padding: 1.2rem 0.3rem;
  border-bottom: 1px solid var(--avc-line);
  color: var(--avc-text);
  text-decoration: none;
}

.avc-runtime:hover { color: var(--avc-text); background: rgba(255, 255, 255, 0.02); }

.avc-runtime .big {
  font-family: var(--avc-mono);
  font-size: 1.1rem;
  color: var(--avc-olive);
}

.avc-runtime h3 {
  font-size: 1.18rem;
  margin-bottom: 0.2rem;
}

.avc-runtime p {
  font-size: 0.9rem;
  color: var(--avc-text-soft);
  margin: 0;
}

.avc-runtime .go {
  font-family: var(--avc-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--avc-accent);
  white-space: nowrap;
}

.avc-runtime:hover .go { color: var(--avc-accent-strong); }

/* Notes */

.avc-note-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.avc-note-card {
  display: flex;
  flex-direction: column;
  padding: 1.35rem;
  border: 1px solid var(--avc-line);
  border-radius: var(--avc-radius);
  background: var(--avc-panel);
  color: var(--avc-text);
  text-decoration: none;
  min-height: 100%;
  transition: border-color 180ms var(--avc-ease), transform 180ms var(--avc-ease);
}

.avc-note-card:hover {
  border-color: rgba(184, 201, 142, 0.5);
  transform: translateY(-3px);
  color: var(--avc-text);
}

.avc-note-card .kind {
  font-family: var(--avc-mono);
  font-size: 0.6rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--avc-olive);
  margin-bottom: 0.8rem;
}

.avc-note-card h3 { font-size: 1.24rem; margin-bottom: 0.55rem; }

.avc-note-card p {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--avc-text-soft);
  margin-bottom: 1.1rem;
}

.avc-note-card .foot {
  margin-top: auto;
  padding-top: 0.9rem;
  border-top: 1px solid var(--avc-line);
  font-family: var(--avc-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--avc-text-soft);
  display: flex;
  justify-content: space-between;
  gap: 0.6rem;
}

/* About strip */

.avc-quote-band {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
  padding: clamp(1.6rem, 4vw, 2.6rem);
  border: 1px solid var(--avc-line);
  border-radius: var(--avc-radius);
  background:
    radial-gradient(30rem 18rem at 100% 0%, rgba(184, 201, 142, 0.09), transparent 60%),
    var(--avc-panel);
}

.avc-quote-mark {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.avc-quote-mark svg { width: 46px; height: 58px; color: var(--avc-accent); flex-shrink: 0; }

.avc-quote-mark .label {
  font-family: var(--avc-mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--avc-text-soft);
  line-height: 1.7;
}

.avc-quote-mark .label b {
  display: block;
  font-family: var(--avc-display);
  font-size: 1.1rem;
  letter-spacing: 0;
  text-transform: none;
  color: var(--avc-heading);
}

.avc-quote-band blockquote {
  margin: 0;
  padding: 0;
  border: 0;
  background: none;
  font-family: var(--avc-display);
  font-size: clamp(1.14rem, 2vw, 1.45rem);
  line-height: 1.55;
  color: var(--avc-heading);
}

.avc-quote-band blockquote em { color: var(--avc-accent); font-style: normal; }

/* Newsletter band */

.avc-newsletter {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--avc-line-strong);
  border-radius: var(--avc-radius);
  background:
    radial-gradient(36rem 20rem at 10% 0%, rgba(255, 154, 138, 0.12), transparent 60%),
    radial-gradient(30rem 20rem at 90% 100%, rgba(184, 201, 142, 0.08), transparent 60%),
    var(--avc-panel);
  padding: clamp(2rem, 5vw, 3.4rem);
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 2rem;
  align-items: center;
}

.avc-newsletter h2 { margin-bottom: 0.7rem; }
.avc-newsletter p { color: var(--avc-text-soft); margin-bottom: 0; max-width: 52ch; }

/* Forms */

.avc-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 560px;
}

.avc-field label {
  display: block;
  font-family: var(--avc-mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--avc-text-soft);
  margin-bottom: 0.45rem;
}

.avc-input {
  width: 100%;
  min-height: 48px;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--avc-line-strong);
  border-radius: var(--avc-radius);
  background: var(--avc-bg-deep);
  color: var(--avc-heading);
  font-family: var(--avc-body);
  font-size: 1rem;
  transition: border-color 140ms var(--avc-ease), box-shadow 140ms var(--avc-ease);
}

.avc-input::placeholder { color: #7a746b; }

.avc-input:focus {
  outline: none;
  border-color: var(--avc-accent);
  box-shadow: 0 0 0 3px rgba(255, 154, 138, 0.16);
}

.avc-input.is-invalid { border-color: #ff6f61; }

.avc-error {
  display: none;
  margin-top: 0.4rem;
  font-size: 0.8rem;
  color: #ff9f94;
}

.avc-error.is-visible { display: block; }

.avc-form-note {
  font-size: 0.8rem;
  color: var(--avc-text-soft);
  margin: 0;
}

.avc-success {
  display: none;
  padding: 0.9rem 1rem;
  border: 1px solid rgba(184, 201, 142, 0.45);
  border-radius: var(--avc-radius);
  background: var(--avc-olive-soft);
  color: var(--avc-heading);
  font-size: 0.95rem;
}

.avc-success.is-visible { display: block; }

/* Search */

.avc-search-box {
  position: relative;
  max-width: 720px;
}

.avc-search-box svg {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  width: 19px;
  height: 19px;
  color: var(--avc-text-soft);
  pointer-events: none;
}

.avc-search-box input {
  padding-left: 2.9rem;
  min-height: 58px;
  font-size: 1.08rem;
}

.avc-search-meta {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin: 1.2rem 0 0.6rem;
  font-family: var(--avc-mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--avc-text-soft);
}

.avc-results { border-top: 1px solid var(--avc-line); }

.avc-result {
  display: grid;
  grid-template-columns: 7rem minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: baseline;
  padding: 1.05rem 0.2rem;
  border-bottom: 1px solid var(--avc-line);
  text-decoration: none;
  color: var(--avc-text);
}

.avc-result:hover { color: var(--avc-text); background: rgba(255, 255, 255, 0.02); }

.avc-result .type {
  font-family: var(--avc-mono);
  font-size: 0.56rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--avc-accent);
}

.avc-result h3 { font-size: 1.05rem; margin-bottom: 0.2rem; }
.avc-result p { font-size: 0.86rem; color: var(--avc-text-soft); margin: 0; }

.avc-result .go {
  font-family: var(--avc-mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--avc-text-soft);
}

.avc-empty {
  padding: 2rem 0;
  color: var(--avc-text-soft);
  font-size: 0.95rem;
}

/* Footer */

.avc-footer {
  border-top: 1px solid var(--avc-line);
  background: var(--avc-bg-deep);
  margin-top: var(--avc-section);
}

.avc-footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 0.7fr));
  gap: 2rem;
  padding-block: clamp(2.5rem, 5vw, 4rem);
}

.avc-footer-brand p {
  color: var(--avc-text-soft);
  font-size: 0.92rem;
  max-width: 34ch;
  margin-top: 0.9rem;
}

.avc-footer h4 {
  font-family: var(--avc-mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--avc-text-soft);
  margin-bottom: 0.8rem;
}

.avc-footer ul { list-style: none; margin: 0; padding: 0; }

.avc-footer li { margin-bottom: 0.42rem; }

.avc-footer li a {
  color: var(--avc-text);
  text-decoration: none;
  font-size: 0.9rem;
}

.avc-footer li a:hover { color: var(--avc-accent); }

.avc-footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.2rem;
  border-top: 1px solid var(--avc-line);
  font-family: var(--avc-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  color: var(--avc-text-soft);
}

.avc-footer-bottom a { color: var(--avc-text-soft); text-decoration: none; }
.avc-footer-bottom a:hover { color: var(--avc-accent); }

.avc-footer-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.avc-footer-badge i {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--avc-olive);
}

/* Mobile drawer */

.avc-drawer {
  position: fixed;
  inset: 0;
  z-index: 1400;
  display: none;
}

.avc-drawer.is-open { display: block; }

.avc-drawer-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.72);
  opacity: 0;
  transition: opacity 200ms var(--avc-ease);
}

.avc-drawer.is-open .avc-drawer-backdrop { opacity: 1; }

.avc-drawer-panel {
  position: absolute;
  top: 0;
  right: 0;
  width: min(88vw, 380px);
  height: 100%;
  padding: 1.4rem;
  background: var(--avc-bg);
  border-left: 1px solid var(--avc-line-strong);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 260ms var(--avc-ease);
  overflow-y: auto;
}

.avc-drawer.is-open .avc-drawer-panel { transform: translateX(0); }

.avc-drawer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--avc-line);
}

.avc-drawer-nav { display: flex; flex-direction: column; padding-top: 0.8rem; }

.avc-drawer-nav a {
  padding: 0.75rem 0.2rem;
  border-bottom: 1px solid var(--avc-line);
  color: var(--avc-heading);
  text-decoration: none;
  font-family: var(--avc-display);
  font-size: 1.15rem;
}

.avc-drawer-nav a:hover { color: var(--avc-accent); }

.avc-drawer-actions {
  margin-top: auto;
  padding-top: 1.2rem;
  display: grid;
  gap: 0.6rem;
}

/* Reveal */

.avc-reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 600ms var(--avc-ease), transform 600ms var(--avc-ease);
}

.avc-reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* Small page hero art */

.avc-page-art {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1.6rem;
}

.avc-page-art img {
  width: 96px;
  height: 96px;
  object-fit: contain;
  border: 1px solid var(--avc-line);
  border-radius: var(--avc-radius);
  background: var(--avc-panel);
  padding: 0.5rem;
}

/* Breadcrumb / chips */

.avc-chip-row { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.2rem; }

.avc-chip {
  display: inline-flex;
  align-items: center;
  padding: 0.32rem 0.6rem;
  border: 1px solid var(--avc-line);
  border-radius: 999px;
  font-family: var(--avc-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--avc-text-soft);
  text-decoration: none;
}

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

/* 404 / construction */

.avc-center-page {
  min-height: calc(100vh - 76px);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--avc-section) var(--avc-gutter);
}

.avc-center-page .avc-display {
  font-size: clamp(3rem, 10vw, 7rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.avc-center-page p { max-width: 44ch; margin-inline: auto; }

.avc-center-page .avc-hero-actions { justify-content: center; }

.avc-big-number {
  font-family: var(--avc-display);
  font-size: clamp(5rem, 18vw, 12rem);
  line-height: 0.8;
  color: var(--avc-accent);
  letter-spacing: -0.05em;
  margin-bottom: 0.5rem;
}

/* Utility */

.avc-mt-0 { margin-top: 0 !important; }
.avc-mt-1 { margin-top: 1rem !important; }
.avc-mt-2 { margin-top: 2rem !important; }
.avc-mb-0 { margin-bottom: 0 !important; }
.avc-text-center { text-align: center; }
.avc-hide { display: none !important; }
.avc-nowrap { white-space: nowrap; }

/* Responsive */

@media (max-width: 1100px) {
  .avc-nav a { padding: 0.35rem 0.55rem; font-size: 0.62rem; }
  .avc-course-layout { grid-template-columns: 240px minmax(0, 1fr); }
}

@media (max-width: 960px) {
  .avc-nav, .avc-header-actions .avc-btn { display: none; }
  .avc-menu-toggle { display: inline-flex; margin-left: auto; }
  .avc-header-actions { margin-left: 0; }
  .avc-hero-grid { grid-template-columns: minmax(0, 1fr); }
  .avc-hero h1 { max-width: 15ch; }
  .avc-code-card { max-width: 560px; }
  .avc-topic-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .avc-note-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .avc-split { grid-template-columns: minmax(0, 1fr); }
  .avc-course-layout { grid-template-columns: minmax(0, 1fr); }
  .avc-rail { display: none; }
  .avc-rail-mobile { display: block; margin-bottom: 1.6rem; }
  .avc-rail-mobile summary {
    cursor: pointer;
    padding: 0.8rem 1rem;
    border: 1px solid var(--avc-line);
    border-radius: var(--avc-radius);
    background: var(--avc-panel);
    font-family: var(--avc-mono);
    font-size: 0.66rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--avc-heading);
    list-style: none;
  }
  .avc-rail-mobile summary::-webkit-details-marker { display: none; }
  .avc-rail-mobile[open] summary { margin-bottom: 0.6rem; }
  .avc-rail-mobile .avc-rail-list a { padding-block: 0.45rem; }
  .avc-newsletter { grid-template-columns: minmax(0, 1fr); }
  .avc-quote-band { grid-template-columns: minmax(0, 1fr); }
  .avc-footer-top { grid-template-columns: 1fr 1fr; }
  .avc-footer-brand { grid-column: 1 / -1; }
  .avc-runtime { grid-template-columns: 6rem minmax(0, 1fr); }
  .avc-runtime .go { display: none; }
}

@media (max-width: 680px) {
  body.avc-body { font-size: 1rem; }
  .avc-header-inner { min-height: 66px; }
  .avc-brand-mark { width: 28px; height: 34px; }
  .avc-brand-sub { font-size: 0.52rem; }
  .avc-hero { padding-top: 2.4rem; }
  .avc-hero h1 { font-size: clamp(2.35rem, 11vw, 3.4rem); }
  .avc-hero-facts { gap: 1rem 1.2rem; }
  .avc-hero-facts div { min-width: 5.2rem; }
  .avc-hero-facts strong { font-size: 1.25rem; }
  .avc-topic-grid { grid-template-columns: 1fr; }
  .avc-note-grid { grid-template-columns: 1fr; }
  .avc-lesson-grid { grid-template-columns: 1fr; }
  .avc-section-head { flex-direction: column; align-items: flex-start; gap: 0.6rem; }
  .avc-article-head h1 { font-size: 2rem; }
  .avc-prose { font-size: 1rem; line-height: 1.78; }
  .avc-prose figure { margin: 1.4rem 0; padding: 0.55rem; }
  .avc-lesson-nav { grid-template-columns: 1fr; }
  .avc-lesson-nav a:last-child { text-align: left; }
  .avc-footer-top { grid-template-columns: 1fr; gap: 1.6rem; }
  .avc-footer-bottom { flex-direction: column; align-items: flex-start; }
  .avc-result { grid-template-columns: 1fr; gap: 0.25rem; }
  .avc-result .go { display: none; }
  .avc-search-meta { flex-direction: column; gap: 0.35rem; }
  .avc-runtime { grid-template-columns: 1fr; gap: 0.4rem; }
  .avc-runtime .big { font-size: 0.9rem; }
  .avc-code-card pre { font-size: 0.76rem; padding: 1.05rem; }
  .avc-hero-sticker { display: none; }
}

@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;
  }
  .avc-reveal { opacity: 1; transform: none; }
}

@media print {
  .avc-header, .avc-footer, .avc-rail, .avc-rail-mobile, .avc-lesson-nav, .avc-progress { display: none !important; }
  body.avc-body { background: #fff; color: #000; }
  .avc-prose a { color: #000; }
}

.avc-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.avc-results mark {
  background: var(--avc-accent-soft);
  color: var(--avc-heading);
  padding: 0 0.12em;
  border-radius: 1px;
}

.avc-syntax pre {
  margin: 0;
}
.avc-related {
  margin-top: 2.6rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--avc-line);
}

.avc-related h2 {
  font-family: var(--avc-mono);
  font-size: 1.05rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--avc-text-soft);
  margin-bottom: 0.9rem;
}

.avc-related ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.55rem 1.2rem;
}

.avc-related li {
  border-bottom: 1px solid var(--avc-line);
  padding-bottom: 0.45rem;
}

.avc-related a {
  color: var(--avc-heading);
  text-decoration: none;
  font-family: var(--avc-display);
  font-size: 0.98rem;
}

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