/* Applied AI Core — production LLM engineering (companion to SysDesign / DevSec / Service Core) */

body.applied-ai-core {
  --aac-bg: #0d1117;
  --aac-bg-elevated: #161b22;
  --aac-bg-panel: #1c2128;
  --aac-border: #30363d;
  --aac-border-bright: #484f58;
  --aac-text: #e6edf3;
  --aac-text-muted: #8b949e;
  --aac-text-dim: #6e7681;
  --aac-accent: #3b82f6;
  --aac-accent-dim: rgba(59, 130, 246, 0.14);
  --aac-accent-glow: rgba(59, 130, 246, 0.35);
  --aac-accent-secondary: #14b8a6;
  --aac-track-llms: #3b82f6;
  --aac-track-rag: #14b8a6;
  --aac-track-prompt: #f59e0b;
  --aac-track-agents: #a855f7;
  --aac-track-eval: #f43f5e;
  --aac-track-ship: #06b6d4;
  --aac-surface: var(--aac-bg-elevated);
  --aac-security: #ea580c;
  --aac-security-dim: rgba(234, 88, 12, 0.12);
  --aac-security-glow: rgba(234, 88, 12, 0.28);
  --aac-openshift: var(--aac-security);
  --aac-openshift-dim: var(--aac-security-dim);
  --aac-openshift-glow: var(--aac-security-glow);
  --aac-teal: #14b8a6;
  --aac-teal-dim: rgba(20, 184, 166, 0.12);
  --aac-yellow: #c4b5fd;
  --aac-yellow-dim: rgba(196, 181, 253, 0.12);
  --aac-cyan: #38bdf8;
  --aac-cyan-dim: rgba(56, 189, 248, 0.12);
  --aac-green: #34d399;
  --aac-green-dim: rgba(52, 211, 153, 0.12);
  --aac-red: #f87171;
  --aac-red-dim: rgba(248, 113, 113, 0.12);
  --aac-amber: #fbbf24;
  --aac-amber-dim: rgba(251, 191, 36, 0.12);
  --aac-purple: #7c3aed;
  --aac-purple-dim: rgba(124, 58, 237, 0.12);
  --aac-orange: #ea580c;
  --aac-orange-dim: rgba(234, 88, 12, 0.12);
  --aac-gray: #94a3b8;
  --aac-gray-dim: rgba(148, 163, 184, 0.1);
  --aac-severity-critical: #dc2626;
  --aac-severity-high: #ea580c;
  --aac-severity-medium: #eab308;
  --aac-severity-low: #94a3b8;
  --aac-font-body: "Inter", system-ui, -apple-system, sans-serif;
  --aac-font-mono: "JetBrains Mono", ui-monospace, "Cascadia Code", monospace;
  --aac-font-display: "Inter", system-ui, -apple-system, sans-serif;
  --aac-radius: 8px;
  --aac-radius-lg: 12px;
  --aac-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
  --aac-max-width: var(--aac-content-width);
  --aac-nav-height: 3.5rem;
  --aac-transition: 0.15s ease;
  --aac-sidebar-width: 220px;

  /* Personas */
  --persona-developer: #38bdf8;
  --persona-developer-bg: rgba(56, 189, 248, 0.12);
  --persona-devops: #7c3aed;
  --persona-devops-bg: rgba(124, 58, 237, 0.12);
  --persona-architect: #ea580c;
  --persona-architect-bg: rgba(234, 88, 12, 0.12);
  --persona-security: var(--persona-architect);
  --persona-security-bg: var(--persona-architect-bg);

  /* Callout accents */
  --callout-pitfall: var(--aac-red);
  --callout-tip: var(--aac-accent);
  --callout-hood: var(--aac-cyan);
  --callout-interview: var(--aac-amber);
  --callout-realworld: var(--aac-green);
  --callout-config: var(--aac-gray);
  --callout-tradeoff: var(--aac-teal);
  --callout-security: var(--aac-security);
  --callout-iac: var(--aac-teal);
  --callout-openshift: var(--aac-security);

  /* Typography — Inter reading scale (see assets/core-typography.css) */
  --aac-font-h1: clamp(1.75rem, 1.5rem + 1.5vw, 2.5rem);
  --aac-font-h2: clamp(1.375rem, 1.2rem + 0.9vw, 1.875rem);
  --aac-font-h3: clamp(1.125rem, 1rem + 0.55vw, 1.5rem);
  --aac-font-size: clamp(1rem, 0.97rem + 0.2vw, 1.125rem);
  --aac-font-size-read: var(--aac-font-size);
  --aac-font-size-small: 0.875rem;
  --aac-font-size-table: var(--aac-font-size-small);
  --aac-font-size-code: clamp(0.8125rem, 0.78rem + 0.15vw, 0.9375rem);
  --aac-line-height: 1.75;
  --aac-line-height-read: 1.75;
  --aac-content-width: min(800px, 92vw);
  --aac-doc-width: min(800px, 92vw);
}

html[data-hp-theme="light"] body.applied-ai-core {
  --aac-bg: #f5f4f8;
  --aac-bg-elevated: #ffffff;
  --aac-bg-panel: #ebe8f2;
  --aac-border: #d4d0e0;
  --aac-border-bright: #b8b2cc;
  --aac-text: #08090f;
  --aac-text-muted: #4b5563;
  --aac-text-dim: #6b7280;
  --aac-accent: #6d28d9;
  --aac-accent-dim: rgba(109, 40, 217, 0.1);
  --aac-accent-glow: rgba(109, 40, 217, 0.2);
  --aac-security: #c2410c;
  --aac-security-dim: rgba(194, 65, 12, 0.08);
  --aac-shadow: 0 8px 24px rgba(8, 9, 15, 0.08);
  --persona-developer: #0284c7;
  --persona-developer-bg: rgba(2, 132, 199, 0.1);
  --persona-devops: #6d28d9;
  --persona-devops-bg: rgba(109, 40, 217, 0.1);
  --persona-architect: #c2410c;
  --persona-architect-bg: rgba(194, 65, 12, 0.1);
}

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

html {
  scroll-behavior: smooth;
}

body.applied-ai-core {
  margin: 0;
  min-height: 100vh;
  background: var(--aac-bg) !important;
  color: var(--aac-text);
  font-family: var(--aac-font-body);
  font-size: var(--aac-font-size);
  line-height: var(--aac-line-height);
  -webkit-font-smoothing: antialiased;
}

/* Chapter pages — reading layout handled in assets/core-typography.css */

body.applied-ai-core::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
  background-image:
    radial-gradient(circle at 12% 18%, rgba(124, 58, 237, 0.14) 0, transparent 42%),
    radial-gradient(circle at 88% 78%, rgba(234, 88, 12, 0.06) 0, transparent 38%),
    linear-gradient(rgba(124, 58, 237, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124, 58, 237, 0.03) 1px, transparent 1px);
  background-size: auto, auto, 52px 52px, 52px 52px;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 25%, #000 20%, transparent 75%);
}

html[data-hp-theme="light"] body.applied-ai-core::after {
  opacity: 0.25;
}

body.applied-ai-core .aac-main,
body.applied-ai-core .aac-topbar,
body.applied-ai-core .aac-footer {
  position: relative;
  z-index: 1;
}

a {
  color: var(--aac-cyan);
  text-decoration: none;
  transition: color var(--aac-transition);
}

a:hover {
  color: var(--aac-accent);
  text-decoration: underline;
}

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

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

.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;
}

/* ── Top bar (sticky, fixed layout — no scroll compact) ── */

body.applied-ai-core {
  --aac-compact-inset: clamp(14px, 2.8vw, 24px);
}

body.applied-ai-core .aac-topbar,
body.applied-ai-core.core-reading-page .site-topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--aac-chrome-bg, var(--aac-bg)) !important;
  border-bottom: 1px solid var(--aac-chrome-border, var(--aac-border)) !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

html[data-hp-theme="light"] body.applied-ai-core {
  --aac-chrome-bg: var(--hp-bg, #f5f2eb);
  --aac-chrome-border: var(--hp-border, rgba(26, 22, 18, 0.1));
  --aac-chrome-text: var(--hp-text, #1a1612);
  --aac-chrome-muted: var(--hp-muted, #5c554c);
  --aac-chrome-accent: var(--hp-accent, #1a6b4a);
}

html[data-hp-theme="dark"] body.applied-ai-core,
html:not([data-hp-theme]) body.applied-ai-core {
  --aac-chrome-bg: #090c14;
  --aac-chrome-border: rgba(255, 255, 255, 0.08);
  --aac-chrome-text: #e8eaef;
  --aac-chrome-muted: #8b949e;
  --aac-chrome-accent: #5cefb8;
}

body.applied-ai-core .aac-topbar .site-topbar__inner,
body.applied-ai-core.core-reading-page .site-topbar .site-topbar__inner {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  grid-template-areas: "brand main actions";
  align-items: center;
  gap: 12px 20px;
  max-width: var(--site-topbar-max, 1280px);
  margin: 0 auto;
  min-height: var(--aac-nav-height);
  padding: 14px var(--site-topbar-pad-x, clamp(20px, 4vw, 40px));
  padding-top: max(14px, env(safe-area-inset-top, 0px));
  box-sizing: border-box;
}

body.applied-ai-core.core-reading-page .site-topbar .site-topbar__inner > :not(.site-brand) {
  opacity: 1;
  visibility: visible;
  width: auto;
  min-width: 0;
  max-width: none;
  pointer-events: auto;
}

body.applied-ai-core .aac-topbar .site-brand {
  grid-area: brand;
  justify-self: start;
  font-family: "Inter", system-ui, sans-serif;
  font-weight: 700;
  font-size: clamp(0.88rem, 3.4vw, 1.05rem);
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--aac-chrome-text, var(--aac-text));
  text-decoration: none;
  transition: column-gap 0.35s ease, color var(--aac-transition);
}

body.applied-ai-core .aac-topbar .site-brand:hover {
  color: var(--aac-chrome-accent, var(--aac-accent));
  text-decoration: none;
}

body.applied-ai-core .aac-topbar .site-brand > span {
  overflow: hidden;
  white-space: nowrap;
  min-width: 0;
}

body.applied-ai-core .aac-topbar .site-brand__tld {
  color: var(--aac-chrome-accent, var(--aac-accent));
  font-weight: 800;
}

body.applied-ai-core .aac-topbar a {
  text-decoration: none;
}

body.applied-ai-core .aac-topbar .hp-topbar__actions,
body.applied-ai-core .aac-topbar .site-topbar__actions {
  grid-area: actions;
  justify-self: end;
}

/* ── Main layout ── */

.aac-main {
  max-width: var(--aac-max-width);
  margin: 0 auto;
  padding: 24px var(--aac-compact-inset) 64px;
}

/* ── Breadcrumb ── */

.aac-breadcrumb {
  margin-bottom: 24px;
}

.aac-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--aac-font-mono);
  font-size: 12px;
  color: var(--aac-text-dim);
}

.aac-breadcrumb li:not(:last-child)::after {
  content: "/";
  margin-left: 6px;
  color: var(--aac-border-bright);
}

.aac-breadcrumb a {
  color: var(--aac-text-muted);
}

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

/* ── Mobile nav ── */

.aac-mobile-nav {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  margin-bottom: 20px;
  padding-bottom: 8px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.aac-mobile-nav a {
  flex-shrink: 0;
  padding: 6px 10px;
  border: 1px solid var(--aac-border);
  border-radius: 999px;
  font-family: var(--aac-font-mono);
  font-size: 10px;
  color: var(--aac-text-muted);
  text-decoration: none;
  white-space: nowrap;
}

.aac-mobile-nav a:hover {
  border-color: var(--aac-accent);
  color: var(--aac-accent);
  text-decoration: none;
}

@media (min-width: 1024px) {
  .aac-mobile-nav {
    display: none;
  }
}

/* ── Hero ── */

.aac-hero {
  margin-bottom: 40px;
}

.aac-hero__kicker {
  margin: 0 0 12px;
  font-family: var(--aac-font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--aac-accent);
}

.aac-hero__kicker a {
  color: var(--aac-yellow);
}

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

.aac-hero__title {
  margin: 0 0 16px;
  font-family: var(--aac-font-display);
  font-size: clamp(1.75rem, 4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.aac-hero__title span {
  color: var(--aac-accent);
}

.aac-hero__title .aac-hero__sec,
.aac-hero__title .aac-hero__ocp {
  color: var(--aac-security);
}

.aac-hero__lede {
  margin: 0 0 24px;
  font-size: 18px;
  line-height: 1.75;
  color: var(--aac-text-muted);
  max-width: 58ch;
}

.aac-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.aac-hero--landing {
  max-width: none;
  margin-bottom: 48px;
}

.aac-hero--landing .aac-hero__why {
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--aac-border);
}

.aac-hero--landing .aac-hero__why-title {
  margin: 0 0 8px;
  font-size: clamp(1.2rem, 2.5vw, 1.45rem);
  font-weight: 700;
}

.aac-hero--landing .aac-hero__why-lede {
  margin: 0 0 16px;
  color: var(--aac-text-muted);
  max-width: 68ch;
  line-height: 1.7;
}

.aac-hero--landing .aac-hero__why-lede:last-of-type {
  margin-bottom: 0;
}

.aac-hub-anchors {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--aac-border);
}

.aac-hub-anchors a {
  padding: 6px 12px;
  border: 1px solid var(--aac-border);
  border-radius: 999px;
  font-family: var(--aac-font-mono);
  font-size: 11px;
  color: var(--aac-text-muted);
  text-decoration: none;
  transition: border-color var(--aac-transition), color var(--aac-transition);
}

.aac-hub-anchors a:hover {
  border-color: var(--aac-accent);
  color: var(--aac-accent);
  text-decoration: none;
}

/* ── Buttons ── */

.aac-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--aac-radius);
  font-family: var(--aac-font-mono);
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background var(--aac-transition), border-color var(--aac-transition), color var(--aac-transition);
}

body.applied-ai-core a.aac-btn,
body.applied-ai-core a.aac-btn:hover {
  border-bottom: none;
}

body.applied-ai-core a.aac-btn--primary {
  background: var(--aac-accent-dim);
  border-color: var(--aac-accent);
  color: var(--aac-accent);
}

body.applied-ai-core a.aac-btn--primary:hover {
  background: var(--aac-accent);
  color: #050a18;
  text-decoration: none;
}

body.applied-ai-core a.aac-btn--ghost {
  background: transparent;
  border-color: var(--aac-border);
  color: var(--aac-text-muted);
}

body.applied-ai-core a.aac-btn--ghost:hover {
  border-color: var(--aac-border-bright);
  color: var(--aac-text);
  text-decoration: none;
}

/* ── Sections ── */

.aac-section {
  display: flex;
  flex-direction: column;
  margin-bottom: 56px;
}

.aac-section__head {
  margin-bottom: 24px;
}

.aac-section__title {
  margin: 0 0 8px;
  font-family: var(--aac-font-display);
  font-size: clamp(1.35rem, 2.5vw, 1.65rem);
  font-weight: 700;
  color: var(--aac-text);
}

.aac-section__title::before {
  content: "» ";
  color: var(--aac-accent);
  font-family: var(--aac-font-mono);
  font-weight: 500;
}

.aac-section__lede {
  margin: 0;
  color: var(--aac-text-muted);
  max-width: 68ch;
  font-size: inherit;
  line-height: inherit;
}

/* ── Pillars / insight cards ── */

.aac-pillars {
  display: grid;
  gap: 12px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 600px) {
  .aac-pillars {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .aac-pillars--5 {
    grid-template-columns: repeat(3, 1fr);
  }

  .aac-pillars--5 .aac-pillar:nth-child(4),
  .aac-pillars--5 .aac-pillar:nth-child(5) {
    grid-column: span 1;
  }
}

.aac-pillar {
  padding: 16px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius-lg);
  background: var(--aac-bg-elevated);
}

.aac-pillar__icon {
  font-size: 22px;
  margin-bottom: 8px;
}

.aac-pillar__title {
  margin: 0 0 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--aac-text);
}

.aac-pillar__desc {
  margin: 0;
  font-size: 13px;
  color: var(--aac-text-muted);
  line-height: 1.6;
}

/* ── Use cases flow map ── */

.aac-usecases {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 20px 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 900px) {
  .aac-usecases {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 12px;
  }
}

.aac-usecase {
  flex: 1;
  min-width: 140px;
  position: relative;
  padding: 16px 14px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius-lg);
  background: var(--aac-bg-elevated);
}

@media (min-width: 900px) {
  .aac-usecase:not(:last-child)::after {
    content: "→";
    position: absolute;
    right: -14px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 2;
    font-family: var(--aac-font-mono);
    font-size: 14px;
    color: var(--aac-accent);
    background: var(--aac-bg);
    padding: 4px;
    border-radius: 50%;
  }
}

.aac-usecase__label {
  margin: 0 0 6px;
  font-family: var(--aac-font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--aac-yellow);
}

.aac-usecase__title {
  margin: 0 0 6px;
  font-size: 14px;
  font-weight: 600;
}

.aac-usecase__desc {
  margin: 0;
  font-size: 12px;
  color: var(--aac-text-muted);
  line-height: 1.55;
}

/* ── Timeline ── */

.aac-timeline {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
  border-left: 2px solid var(--aac-border);
  margin-left: 8px;
}

.aac-timeline__item {
  position: relative;
  padding: 0 0 24px 24px;
}

.aac-timeline__item:last-child {
  padding-bottom: 0;
}

.aac-timeline__item::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--aac-bg);
  border: 2px solid var(--aac-accent);
}

.aac-timeline__year {
  display: inline-block;
  margin-bottom: 4px;
  font-family: var(--aac-font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--aac-accent);
}

.aac-timeline__label {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 600;
  color: var(--aac-text);
}

.aac-timeline__desc {
  margin: 0;
  font-size: 15px;
  color: var(--aac-text-muted);
  line-height: 1.65;
}

/* ── Ecosystem map ── */

.aac-eco {
  display: grid;
  gap: 16px;
}

@media (min-width: 768px) {
  .aac-eco {
    grid-template-columns: repeat(2, 1fr);
  }
}

.aac-eco__group {
  padding: 16px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius-lg);
  background: var(--aac-bg-elevated);
}

.aac-eco__title {
  margin: 0 0 10px;
  font-family: var(--aac-font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--aac-accent);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.aac-eco__list {
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 15px;
  color: var(--aac-text-muted);
}

.aac-eco__list li {
  padding: 4px 0;
}

.aac-eco__list strong {
  color: var(--aac-text);
  font-weight: 600;
}

/* ── Compare table ── */

.aac-compare {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--aac-font-size-table);
  margin: 20px 0;
}

.aac-compare th,
.aac-compare td {
  padding: 12px 14px;
  text-align: left;
  border: 1px solid var(--aac-border);
  vertical-align: top;
}

.aac-compare thead th {
  background: var(--aac-bg-panel);
  font-family: var(--aac-font-mono);
  font-size: 0.75em;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--aac-text-dim);
}

.aac-compare tbody th {
  font-family: var(--aac-font-mono);
  font-size: 0.92em;
  color: var(--aac-accent);
  background: var(--aac-bg-elevated);
  white-space: nowrap;
}

.aac-compare td {
  color: var(--aac-text-muted);
  line-height: 1.6;
}

.aac-compare .aac-compare__win {
  color: var(--aac-green);
}

/* ── Callouts ── */

.aac-callout {
  display: flex;
  gap: 12px;
  padding: 14px 16px;
  margin: 20px 0;
  border-radius: var(--aac-radius);
  border: 1px solid var(--aac-border);
  font-size: inherit;
  line-height: inherit;
}

.aac-callout__label {
  flex-shrink: 0;
  font-family: var(--aac-font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  min-width: 7rem;
}

.aac-callout__body {
  flex: 1;
  min-width: 0;
}

.aac-callout__body p {
  margin: 0;
  color: var(--aac-text-muted);
}

.aac-callout__body p + p {
  margin-top: 8px;
}

.aac-callout__body strong {
  color: var(--aac-text);
}

.aac-callout--pitfall {
  background: var(--aac-red-dim);
  border-color: color-mix(in srgb, var(--aac-red) 35%, transparent);
}

.aac-callout--pitfall .aac-callout__label {
  color: var(--aac-red);
}

.aac-callout--tip {
  background: var(--aac-accent-dim);
  border-color: color-mix(in srgb, var(--aac-accent) 35%, transparent);
}

.aac-callout--tip .aac-callout__label {
  color: var(--aac-accent);
}

.aac-callout--hood {
  background: var(--aac-cyan-dim);
  border-color: color-mix(in srgb, var(--aac-cyan) 35%, transparent);
}

.aac-callout--hood .aac-callout__label {
  color: var(--aac-cyan);
}

.aac-callout--interview {
  background: var(--aac-amber-dim);
  border-color: color-mix(in srgb, var(--aac-amber) 35%, transparent);
}

.aac-callout--interview .aac-callout__label {
  color: var(--aac-amber);
}

.aac-callout--realworld {
  background: var(--aac-green-dim);
  border-color: color-mix(in srgb, var(--aac-green) 35%, transparent);
}

.aac-callout--realworld .aac-callout__label {
  color: var(--aac-green);
}

.aac-callout--config {
  background: var(--aac-gray-dim);
  border-color: color-mix(in srgb, var(--aac-gray) 35%, transparent);
}

.aac-callout--config .aac-callout__label {
  color: var(--aac-gray);
}

.aac-callout--tradeoff {
  background: var(--aac-teal-dim);
  border-color: color-mix(in srgb, var(--aac-teal) 35%, transparent);
}

.aac-callout--tradeoff .aac-callout__label {
  color: var(--aac-teal);
}

.aac-callout--openshift {
  background: var(--aac-openshift-dim);
  border-left: 4px solid var(--aac-openshift);
  border-color: color-mix(in srgb, var(--aac-openshift) 35%, transparent);
  border-left-color: var(--aac-openshift);
}

.aac-callout--openshift .aac-callout__label {
  color: var(--aac-openshift);
}

/* Dual-track K8s vs OpenShift tabs */
.aac-dual-track {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 20px 0;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius-lg);
  overflow: hidden;
  background: var(--aac-bg-elevated);
}

.aac-dual-track__tabs {
  display: flex;
  border-bottom: 1px solid var(--aac-border);
}

.aac-dual-track__tab {
  flex: 1;
  padding: 10px 16px;
  border: none;
  background: transparent;
  font-family: var(--aac-font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--aac-text-muted);
  cursor: pointer;
  transition: background var(--aac-transition), color var(--aac-transition);
}

.aac-dual-track__tab--k8s.is-active {
  background: var(--aac-accent-dim);
  color: var(--aac-accent);
  box-shadow: inset 0 -2px 0 var(--aac-accent);
}

.aac-dual-track__tab--ocp.is-active {
  background: var(--aac-openshift-dim);
  color: var(--aac-openshift);
  box-shadow: inset 0 -2px 0 var(--aac-openshift);
}

.aac-dual-track__panel {
  display: none;
  padding: 16px 18px;
}

.aac-dual-track__panel.is-active {
  display: block;
}

/* kubectl / oc command toggle */
.aac-cmd-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 16px;
  padding: 4px;
  border: 1px solid var(--aac-border);
  border-radius: 999px;
  background: var(--aac-bg-panel);
}

.aac-cmd-toggle__label {
  padding-left: 10px;
  font-family: var(--aac-font-mono);
  font-size: 11px;
  color: var(--aac-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.aac-cmd-toggle__btn {
  padding: 6px 14px;
  border: none;
  border-radius: 999px;
  font-family: var(--aac-font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--aac-text-muted);
  background: transparent;
  cursor: pointer;
  transition: background var(--aac-transition), color var(--aac-transition);
}

.aac-cmd-toggle__btn.is-active[data-cmd="kubectl"] {
  background: var(--aac-accent-dim);
  color: var(--aac-accent);
}

.aac-cmd-toggle__btn.is-active[data-cmd="oc"] {
  background: var(--aac-openshift-dim);
  color: var(--aac-openshift);
}

body.applied-ai-core[data-cmd-mode="oc"] .aac-cmd-kubectl {
  display: none;
}

body.applied-ai-core:not([data-cmd-mode="oc"]) .aac-cmd-oc {
  display: none;
}

.aac-ver--ocp {
  background: var(--aac-openshift-dim);
  border-color: color-mix(in srgb, var(--aac-openshift) 40%, transparent);
  color: var(--aac-openshift);
}

.aac-callout--security {
  background: var(--aac-orange-dim);
  border-color: color-mix(in srgb, var(--aac-orange) 35%, transparent);
}

.aac-callout--security .aac-callout__label {
  color: var(--aac-orange);
}

/* ── Terminal output blocks ── */

.aac-terminal {
  margin: 16px 0;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius);
  overflow: hidden;
  background: #040a14;
}

.aac-terminal__header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background: var(--aac-bg-panel);
  border-bottom: 1px solid var(--aac-border);
}

.aac-terminal__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--aac-border-bright);
}

.aac-terminal__dot--red { background: #f87171; }
.aac-terminal__dot--yellow { background: #fbbf24; }
.aac-terminal__dot--green { background: #34d399; }

.aac-terminal__title {
  margin-left: 8px;
  font-family: var(--aac-font-mono);
  font-size: 11px;
  color: var(--aac-text-dim);
}

.aac-terminal__body {
  margin: 0;
  padding: 16px;
  font-family: var(--aac-font-mono);
  font-size: var(--aac-font-size-code);
  line-height: 1.65;
  color: var(--aac-text-muted);
  overflow-x: auto;
}

.aac-terminal__prompt {
  color: var(--aac-green);
  user-select: none;
}

.aac-terminal__cmd {
  color: var(--aac-text);
}

.aac-terminal__out {
  color: var(--aac-text-dim);
}

html[data-hp-theme="light"] .aac-terminal {
  background: #0d1829;
}

/* ── OverlayFS stack diagram ── */

.aac-overlay-viz {
  margin: 24px 0;
  padding: 24px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius-lg);
  background: var(--aac-bg-elevated);
}

.aac-overlay-viz__controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.aac-overlay-viz__btn {
  appearance: none;
  padding: 8px 14px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius);
  background: var(--aac-bg);
  color: var(--aac-text-muted);
  font-family: var(--aac-font-mono);
  font-size: 12px;
  cursor: pointer;
  transition: border-color var(--aac-transition), color var(--aac-transition), background var(--aac-transition);
}

.aac-overlay-viz__btn:hover,
.aac-overlay-viz__btn.is-active {
  border-color: var(--aac-accent);
  color: var(--aac-accent);
  background: var(--aac-accent-dim);
}

.aac-overlay-viz__stage {
  display: grid;
  gap: 20px;
}

@media (min-width: 768px) {
  .aac-overlay-viz__stage {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

.aac-overlay-viz__stack {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.aac-overlay-viz__layer {
  position: relative;
  padding: 14px 16px;
  border-radius: var(--aac-radius);
  border: 1px solid var(--aac-border-bright);
  font-family: var(--aac-font-mono);
  font-size: 12px;
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}

.aac-overlay-viz__layer-label {
  display: block;
  margin-bottom: 4px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.aac-overlay-viz__layer--lower {
  background: color-mix(in srgb, var(--aac-accent) 8%, var(--aac-bg-panel));
  border-color: color-mix(in srgb, var(--aac-accent) 30%, transparent);
}

.aac-overlay-viz__layer--lower .aac-overlay-viz__layer-label {
  color: var(--aac-accent);
}

.aac-overlay-viz__layer--upper {
  background: color-mix(in srgb, var(--aac-teal) 10%, var(--aac-bg-panel));
  border-color: color-mix(in srgb, var(--aac-teal) 35%, transparent);
}

.aac-overlay-viz__layer--upper .aac-overlay-viz__layer-label {
  color: var(--aac-teal);
}

.aac-overlay-viz__layer--work {
  background: var(--aac-bg);
  border-style: dashed;
  opacity: 0.85;
}

.aac-overlay-viz__layer--work .aac-overlay-viz__layer-label {
  color: var(--aac-text-dim);
}

.aac-overlay-viz__layer--merged {
  background: linear-gradient(135deg, var(--aac-accent-dim), var(--aac-teal-dim));
  border-color: var(--aac-accent);
  box-shadow: 0 0 24px var(--aac-accent-glow);
}

.aac-overlay-viz__layer--merged .aac-overlay-viz__layer-label {
  color: var(--aac-text);
}

.aac-overlay-viz__file {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 6px;
  padding: 4px 8px;
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.2);
  color: var(--aac-text-muted);
}

.aac-overlay-viz.is-write .aac-overlay-viz__file--app {
  animation: dc-cow-copy 0.8s ease forwards;
}

.aac-overlay-viz.is-write .aac-overlay-viz__layer--upper {
  border-color: var(--aac-teal);
  box-shadow: 0 0 16px var(--aac-teal-dim);
}

@keyframes dc-cow-copy {
  0% { opacity: 1; transform: translateY(0); }
  40% { opacity: 0.5; transform: translateY(-12px); }
  100% { opacity: 1; transform: translateY(0); color: var(--aac-teal); }
}

.aac-overlay-viz__legend {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--aac-text-muted);
}

.aac-overlay-viz__legend li {
  padding: 4px 0 4px 16px;
  position: relative;
}

.aac-overlay-viz__legend li::before {
  content: "›";
  position: absolute;
  left: 0;
  color: var(--aac-accent);
  font-weight: 700;
}

/* ── Dockerfile layer explorer ── */

.aac-layer-explorer {
  margin: 24px 0;
  padding: 24px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius-lg);
  background: var(--aac-bg-elevated);
}

.aac-layer-explorer__grid {
  display: grid;
  gap: 24px;
}

@media (min-width: 900px) {
  .aac-layer-explorer__grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

.aac-layer-explorer__dockerfile {
  margin: 0;
  padding: 16px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius);
  background: #040a14;
  font-family: var(--aac-font-mono);
  font-size: 13px;
  line-height: 1.7;
  overflow-x: auto;
}

.aac-layer-explorer__line {
  display: block;
  padding: 4px 8px;
  margin: 2px 0;
  border-radius: 4px;
  color: var(--aac-text-dim);
  cursor: pointer;
  transition: background var(--aac-transition), color var(--aac-transition);
  border: 1px solid transparent;
}

.aac-layer-explorer__line:hover {
  background: var(--aac-accent-dim);
  color: var(--aac-text-muted);
}

.aac-layer-explorer__line.is-active {
  background: var(--aac-accent-dim);
  border-color: color-mix(in srgb, var(--aac-accent) 40%, transparent);
  color: var(--aac-accent);
}

.aac-layer-explorer__line.is-built {
  color: var(--aac-text-muted);
}

.aac-layer-explorer__line.is-built.is-active {
  color: var(--aac-accent);
}

.aac-layer-explorer__comment {
  color: var(--aac-text-dim);
  font-style: italic;
  cursor: default;
}

.aac-layer-explorer__comment:hover {
  background: transparent;
  color: var(--aac-text-dim);
}

.aac-layer-explorer__controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.aac-layer-explorer__btn {
  appearance: none;
  padding: 6px 12px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius);
  background: var(--aac-bg);
  color: var(--aac-text-muted);
  font-family: var(--aac-font-mono);
  font-size: 11px;
  cursor: pointer;
  transition: border-color var(--aac-transition), color var(--aac-transition);
}

.aac-layer-explorer__btn:hover {
  border-color: var(--aac-accent);
  color: var(--aac-accent);
}

.aac-layer-explorer__stack-wrap h3 {
  margin: 0 0 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--aac-text-muted);
}

.aac-layer-explorer__stack {
  display: flex;
  flex-direction: column-reverse;
  gap: 6px;
  min-height: 200px;
}

.aac-layer-explorer__layer {
  padding: 12px 14px;
  border: 1px solid var(--aac-border-bright);
  border-radius: var(--aac-radius);
  background: linear-gradient(135deg, var(--aac-accent-dim), var(--aac-bg-panel));
  font-family: var(--aac-font-mono);
  font-size: 11px;
  animation: dc-layer-in 0.35s ease;
}

.aac-layer-explorer__layer:nth-child(1) { opacity: 1; }
.aac-layer-explorer__layer:nth-child(2) { opacity: 0.92; }
.aac-layer-explorer__layer:nth-child(3) { opacity: 0.84; }
.aac-layer-explorer__layer:nth-child(4) { opacity: 0.76; }
.aac-layer-explorer__layer:nth-child(5) { opacity: 0.68; }

.aac-layer-explorer__layer-name {
  display: block;
  font-weight: 600;
  color: var(--aac-accent);
  margin-bottom: 4px;
}

.aac-layer-explorer__layer-meta {
  color: var(--aac-text-dim);
  font-size: 10px;
}

.aac-layer-explorer__layer--base {
  border-color: var(--aac-teal);
  background: linear-gradient(135deg, var(--aac-teal-dim), var(--aac-bg-panel));
}

.aac-layer-explorer__layer--base .aac-layer-explorer__layer-name {
  color: var(--aac-teal);
}

.aac-layer-explorer__layer--cache {
  border-style: dashed;
  opacity: 0.7;
}

@keyframes dc-layer-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.aac-layer-explorer__status {
  margin: 12px 0 0;
  font-size: 13px;
  color: var(--aac-text-muted);
  line-height: 1.6;
}

/* ── Mermaid ── */

.aac-mermaid {
  margin: 20px 0;
  padding: 20px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius-lg);
  background: var(--aac-bg-elevated);
  overflow-x: auto;
}

.aac-mermaid .mermaid {
  display: flex;
  justify-content: center;
}

/* ── Architecture flow visual ── */

.aac-arch-flow {
  display: grid;
  gap: 16px;
  margin: 24px 0;
  padding: 24px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius-lg);
  background: var(--aac-bg-elevated);
}

@media (min-width: 768px) {
  .aac-arch-flow {
    grid-template-columns: 1fr auto 2fr auto 1fr;
    align-items: center;
    gap: 12px;
  }
}

.aac-arch-flow__node {
  padding: 16px;
  border: 1px solid var(--aac-border-bright);
  border-radius: var(--aac-radius);
  background: var(--aac-bg-panel);
  text-align: center;
}

.aac-arch-flow__node--accent {
  border-color: var(--aac-accent);
  box-shadow: 0 0 20px var(--aac-accent-dim);
}

.aac-arch-flow__node-title {
  margin: 0 0 6px;
  font-family: var(--aac-font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--aac-accent);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.aac-arch-flow__node-desc {
  margin: 0;
  font-size: 12px;
  color: var(--aac-text-muted);
  line-height: 1.5;
}

.aac-arch-flow__arrow {
  display: none;
  font-family: var(--aac-font-mono);
  font-size: 20px;
  color: var(--aac-yellow);
  text-align: center;
}

@media (min-width: 768px) {
  .aac-arch-flow__arrow {
    display: block;
  }
}

.aac-arch-flow__partitions {
  display: flex;
  gap: 6px;
  justify-content: center;
  margin-top: 10px;
}

.aac-arch-flow__partition {
  width: 28px;
  height: 40px;
  border-radius: 4px;
  background: linear-gradient(180deg, var(--aac-accent) 0%, color-mix(in srgb, var(--aac-accent) 40%, transparent) 100%);
  opacity: 0.85;
}

.aac-arch-flow__partition:nth-child(2) {
  opacity: 0.65;
}

.aac-arch-flow__partition:nth-child(3) {
  opacity: 0.45;
}

/* ── Search & persona filter ── */

.aac-toolbar {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
  padding: 16px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius-lg);
  background: var(--aac-bg-elevated);
}

@media (min-width: 640px) {
  .aac-toolbar {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
  }
}

.aac-search {
  flex: 1;
  min-width: 200px;
  position: relative;
}

.aac-search__input {
  width: 100%;
  padding: 10px 14px 10px 36px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius);
  background: var(--aac-bg);
  color: var(--aac-text);
  font-family: var(--aac-font-mono);
  font-size: 13px;
  outline: none;
}

.aac-search__input:focus {
  border-color: var(--aac-accent);
  box-shadow: 0 0 0 2px var(--aac-accent-dim);
}

.aac-search__input::placeholder {
  color: var(--aac-text-dim);
}

.aac-search__icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 14px;
  color: var(--aac-text-dim);
  pointer-events: none;
}

.aac-search__results {
  margin: 8px 0 0;
  font-size: 12px;
  color: var(--aac-text-muted);
}

.aac-persona-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.aac-persona-filter__btn {
  appearance: none;
  padding: 6px 12px;
  border: 1px solid var(--aac-border);
  border-radius: 999px;
  background: transparent;
  color: var(--aac-text-muted);
  font-family: var(--aac-font-mono);
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  transition: border-color var(--aac-transition), background var(--aac-transition), color var(--aac-transition);
}

.aac-persona-filter__btn:hover {
  border-color: var(--aac-border-bright);
  color: var(--aac-text);
}

.aac-persona-filter__btn.is-active {
  border-color: var(--aac-accent);
  background: var(--aac-accent-dim);
  color: var(--aac-accent);
}

.aac-persona-filter__btn[data-persona="developer"].is-active {
  border-color: var(--persona-developer);
  background: var(--persona-developer-bg);
  color: var(--persona-developer);
}

.aac-persona-filter__btn[data-persona="devops"].is-active {
  border-color: var(--persona-devops);
  background: var(--persona-devops-bg);
  color: var(--persona-devops);
}

.aac-persona-filter__btn[data-persona="architect"].is-active {
  border-color: var(--persona-architect);
  background: var(--persona-architect-bg);
  color: var(--persona-architect);
}

/* ── Badges ── */

.aac-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 999px;
  font-family: var(--aac-font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 1px solid transparent;
}

.aac-badge--developer {
  color: var(--persona-developer);
  background: var(--persona-developer-bg);
  border-color: color-mix(in srgb, var(--persona-developer) 35%, transparent);
}

.aac-badge--devops {
  color: var(--persona-devops);
  background: var(--persona-devops-bg);
  border-color: color-mix(in srgb, var(--persona-devops) 35%, transparent);
}

.aac-badge--architect {
  color: var(--persona-architect);
  background: var(--persona-architect-bg);
  border-color: color-mix(in srgb, var(--persona-architect) 35%, transparent);
}

.aac-ver {
  display: inline-flex;
  padding: 2px 7px;
  border-radius: 4px;
  font-family: var(--aac-font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--aac-yellow);
  background: var(--aac-yellow-dim);
  border: 1px solid color-mix(in srgb, var(--aac-yellow) 40%, transparent);
  vertical-align: middle;
  margin-left: 6px;
}

/* ── Cards grid ── */

.aac-grid {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 600px) {
  .aac-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .aac-grid--3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.aac-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius-lg);
  background: var(--aac-bg-elevated);
  transition: border-color var(--aac-transition), transform var(--aac-transition), box-shadow var(--aac-transition);
}

.aac-card:hover {
  border-color: var(--aac-accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 24px var(--aac-accent-glow);
}

.aac-card__link {
  color: inherit;
  text-decoration: none;
}

.aac-card__link:hover {
  text-decoration: none;
}

.aac-card__icon {
  font-size: 20px;
  color: var(--aac-accent);
  font-family: var(--aac-font-mono);
}

.aac-card__title {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--aac-text);
}

.aac-card__desc {
  margin: 0;
  font-size: 15px;
  color: var(--aac-text-muted);
  line-height: 1.65;
  flex: 1;
}

.aac-card__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
}

.aac-card--soon {
  opacity: 0.7;
}

.aac-card--soon .aac-card__link {
  pointer-events: none;
  cursor: default;
}

.aac-card--soon:hover {
  transform: none;
  border-color: var(--aac-border);
  box-shadow: none;
}

.aac-card__soon-tag {
  font-family: var(--aac-font-mono);
  font-size: 10px;
  color: var(--aac-accent);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ── Persona intro cards ── */

.aac-personas {
  display: grid;
  gap: 16px;
}

.aac-personas--compact {
  margin-bottom: 24px;
}

@media (min-width: 768px) {
  .aac-personas {
    grid-template-columns: repeat(3, 1fr);
  }
}

.aac-persona {
  padding: 20px;
  border-radius: var(--aac-radius-lg);
  border: 1px solid var(--aac-border);
  background: var(--aac-bg-elevated);
}

.aac-persona__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 12px;
}

.aac-persona__title {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
}

.aac-persona__blurb {
  margin: 0;
  font-size: 15px;
  color: var(--aac-text-muted);
  line-height: 1.6;
}

.aac-learning-path {
  margin: 0 0 20px;
  padding: 14px 16px;
  border-left: 3px solid var(--aac-accent);
  border-radius: 0 var(--aac-radius) var(--aac-radius) 0;
  background: var(--aac-accent-dim);
  font-size: 15px;
  color: var(--aac-text-muted);
  line-height: 1.65;
}

.aac-learning-path strong {
  color: var(--aac-text);
}

/* ── Prose utilities ── */

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

.aac-prose li {
  padding: 6px 0 6px 18px;
  position: relative;
  color: var(--aac-text-muted);
  line-height: inherit;
}

.aac-prose li::before {
  content: "›";
  position: absolute;
  left: 0;
  color: var(--aac-accent);
  font-weight: 700;
}

.aac-inline-code {
  padding: 2px 6px;
  border-radius: 4px;
  font-family: var(--aac-font-mono);
  font-size: 0.88em;
  background: var(--aac-bg-panel);
  border: 1px solid var(--aac-border);
  color: var(--aac-accent);
}

.aac-filter-hidden {
  display: none !important;
}

/* ── Config tables (content pages) ── */

.aac-config-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--aac-font-size-table);
  margin: 16px 0;
}

.aac-config-table th,
.aac-config-table td {
  padding: 10px 12px;
  text-align: left;
  border: 1px solid var(--aac-border);
  vertical-align: top;
}

.aac-config-table thead th {
  background: var(--aac-bg-panel);
  font-family: var(--aac-font-mono);
  font-size: 0.75em;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--aac-text-dim);
}

.aac-config-table td:first-child {
  font-family: var(--aac-font-mono);
  font-size: 0.92em;
  color: var(--aac-accent);
  white-space: nowrap;
}

.aac-config-table td {
  color: var(--aac-text-muted);
  line-height: 1.55;
}

/* ── Code blocks (Prism) ── */

.aac-codeblock {
  position: relative;
  margin: 16px 0;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius);
  overflow: hidden;
  background: #0a0c10;
}

.aac-codeblock__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 12px;
  background: var(--aac-bg-panel);
  border-bottom: 1px solid var(--aac-border);
}

.aac-codeblock__lang {
  font-family: var(--aac-font-mono);
  font-size: 11px;
  color: var(--aac-text-dim);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.aac-codeblock__copy {
  appearance: none;
  padding: 4px 10px;
  border: 1px solid var(--aac-border);
  border-radius: 4px;
  background: transparent;
  color: var(--aac-text-muted);
  font-family: var(--aac-font-mono);
  font-size: 11px;
  cursor: pointer;
  transition: color var(--aac-transition), border-color var(--aac-transition);
}

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

.aac-codeblock__copy.is-copied {
  border-color: var(--aac-green);
  color: var(--aac-green);
}

.aac-codeblock pre {
  margin: 0;
  padding: 16px;
  overflow-x: auto;
  font-size: var(--aac-font-size-code);
  line-height: 1.6;
}

.aac-codeblock code {
  font-family: var(--aac-font-mono);
}

/* ── Content page layout (sidebar + prose) ── */

.aac-layout {
  display: grid;
  gap: 32px;
}

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

@media (min-width: 1024px) {
  .aac-layout--doc {
    grid-template-columns: var(--aac-sidebar-width) minmax(0, 1fr);
    align-items: start;
  }
}

.aac-sidebar {
  display: block;
  position: sticky;
  top: calc(var(--aac-nav-height) + 16px);
  max-height: calc(100vh - var(--aac-nav-height) - 32px);
  overflow-y: auto;
  padding: 16px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius-lg);
  background: var(--aac-bg-elevated);
}

@media (max-width: 1023px) {
  .aac-layout--doc .aac-sidebar {
    position: static;
    max-height: none;
  }
}

.aac-sidebar__title {
  margin: 0 0 12px;
  font-family: var(--aac-font-mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--aac-text-dim);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.aac-sidebar ol {
  margin: 0;
  padding: 0 0 0 1em;
  font-size: 14px;
  line-height: 1.8;
}

.aac-sidebar a {
  color: var(--aac-text-muted);
}

.aac-sidebar a:hover,
.aac-sidebar a.is-active {
  color: var(--aac-accent);
}

/* ── Footer ── */

.aac-footer {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--aac-border);
  text-align: center;
  font-size: 13px;
  color: var(--aac-text-dim);
}

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

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

/* ── Content page layout ── */

.aac-page-hero {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--aac-border);
}

.aac-page-hero__title {
  margin: 0 0 12px;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
}

.aac-page-hero__lede {
  margin: 0 0 16px;
  color: var(--aac-text-muted);
  max-width: 68ch;
  font-size: inherit;
  line-height: inherit;
}

.aac-page-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.aac-doc {
  min-width: 0;
}

.aac-prose h3 {
  margin: 28px 0 12px;
  font-size: 1.25rem;
  font-weight: 600;
}

.aac-prose p {
  margin: 0 0 16px;
  color: var(--aac-text-muted);
  max-width: 72ch;
  font-size: inherit;
  line-height: inherit;
}

.aac-prose ul,
.aac-prose ol {
  margin: 0 0 16px;
  padding-left: 1.4em;
  color: var(--aac-text-muted);
  max-width: 72ch;
  font-size: inherit;
  line-height: inherit;
}

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

.aac-prose li strong {
  color: var(--aac-text);
}

.aac-prose h3::before {
  content: "// ";
  font-family: var(--aac-font-mono);
  font-size: 0.85em;
  font-weight: 500;
  color: var(--aac-text-dim);
}

.aac-prose h4 {
  margin: 20px 0 10px;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--aac-text);
}

.aac-next-link {
  display: inline-flex;
  align-self: flex-end;
  margin-top: 24px;
  padding: 12px 18px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius-lg);
  background: var(--aac-bg-elevated);
  color: var(--aac-text);
  font-family: var(--aac-font-mono);
  font-size: 15px;
  text-decoration: none;
  transition: border-color var(--aac-transition);
}

.aac-next-link:hover {
  border-color: var(--aac-accent);
  color: var(--aac-accent);
  text-decoration: none;
}

.aac-pager {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--aac-border);
}

.aac-pager .aac-next-link {
  margin-top: 0;
}

.aac-pager .aac-next-link:last-child {
  margin-left: auto;
}

[data-personas].aac-filter-hidden {
  display: none !important;
}

body.applied-ai-core .aac-footer {
  position: relative;
  z-index: 1;
  margin-top: 64px;
  padding: 28px 24px 64px;
  border-top: 1px solid var(--aac-chrome-border, var(--aac-border));
  text-align: center;
  font-size: 11px;
  font-family: var(--aac-font-mono);
  color: var(--aac-chrome-muted, var(--aac-text-dim));
  background: var(--aac-chrome-bg, var(--aac-bg));
}

body.applied-ai-core .aac-footer a {
  color: var(--aac-chrome-accent, var(--aac-cyan));
  font-weight: 600;
  text-decoration: none;
}

body.applied-ai-core .aac-footer a:hover {
  color: var(--aac-accent);
  text-decoration: underline;
}

body.applied-ai-core pre[class*="language-"] {
  background: #0a0c10 !important;
  margin: 0;
}

body.applied-ai-core code[class*="language-"] {
  font-family: var(--aac-font-mono);
  font-size: var(--aac-font-size-code);
}

html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock {
  background: #f6f8fa;
  border-color: var(--aac-border);
}

html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock__header {
  background: #eef1f6;
  border-bottom-color: var(--aac-border);
}

html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock__lang {
  color: var(--aac-text-muted);
}

html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock__copy {
  color: var(--aac-text-muted);
  border-color: var(--aac-border);
}

html[data-hp-theme="light"] body.applied-ai-core pre[class*="language-"],
html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock pre {
  background: #f6f8fa !important;
  color: #24292f !important;
  text-shadow: none !important;
}

html[data-hp-theme="light"] body.applied-ai-core code[class*="language-"],
html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock code {
  color: #24292f !important;
  text-shadow: none !important;
}

/* Prism token colours — override prism-tomorrow (dark-theme) in day mode */
html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .token.comment,
html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .token.prolog,
html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .token.doctype,
html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .token.cdata {
  color: #57606a !important;
}

html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .token.punctuation {
  color: #24292f !important;
}

html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .token.namespace {
  opacity: 0.85;
}

html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .token.property,
html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .token.tag,
html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .token.boolean,
html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .token.number,
html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .token.constant,
html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .token.symbol,
html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .token.deleted {
  color: #0550ae !important;
}

html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .token.selector,
html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .token.attr-name,
html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .token.string,
html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .token.char,
html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .token.builtin,
html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .token.inserted {
  color: #0a3069 !important;
}

html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .token.operator,
html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .token.entity,
html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .token.url,
html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .language-css .token.string,
html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .style .token.string {
  color: #953800 !important;
}

html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .token.atrule,
html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .token.attr-value,
html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .token.keyword {
  color: #cf222e !important;
}

html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .token.function,
html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .token.class-name {
  color: #8250df !important;
}

html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .token.regex,
html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .token.important,
html[data-hp-theme="light"] body.applied-ai-core .aac-codeblock .token.variable {
  color: #116329 !important;
}

/* ── ASCII diagrams ── */

.aac-ascii {
  margin: 16px 0;
  padding: 16px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius);
  background: var(--aac-bg-elevated);
  overflow-x: auto;
}

.aac-ascii pre {
  margin: 0;
  font-family: var(--aac-font-mono);
  font-size: var(--aac-font-size-code);
  line-height: 1.5;
  color: var(--aac-cyan);
}

/* ── Partition visualizer ── */

.aac-partition-viz {
  margin: 24px 0;
  padding: 20px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius-lg);
  background: var(--aac-bg-elevated);
}

.aac-partition-viz__controls {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
  align-items: center;
  margin-bottom: 20px;
}

.aac-partition-viz__control {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-family: var(--aac-font-mono);
  font-size: 12px;
  color: var(--aac-text-muted);
}

.aac-partition-viz__control input[type="range"] {
  width: 140px;
  accent-color: var(--aac-accent);
}

.aac-partition-viz__control input[type="number"] {
  width: 72px;
  padding: 6px 8px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius);
  background: var(--aac-bg);
  color: var(--aac-text);
  font-family: var(--aac-font-mono);
  font-size: 12px;
}

.aac-partition-viz__control--check {
  flex-direction: row;
  align-items: center;
  gap: 8px;
}

.aac-partition-viz__btn {
  appearance: none;
  padding: 8px 16px;
  border: 1px solid var(--aac-accent);
  border-radius: var(--aac-radius);
  background: var(--aac-accent-dim);
  color: var(--aac-accent);
  font-family: var(--aac-font-mono);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--aac-transition), color var(--aac-transition);
}

.aac-partition-viz__btn:hover {
  background: var(--aac-accent);
  color: #060810;
}

.aac-partition-viz__chart {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  min-height: 180px;
  padding: 16px 8px 8px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius);
  background: var(--aac-bg);
}

.aac-partition-viz__bar-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  min-width: 0;
}

.aac-partition-viz__bar {
  width: 100%;
  max-width: 48px;
  min-height: 4px;
  border-radius: 4px 4px 0 0;
  background: linear-gradient(180deg, var(--aac-accent) 0%, color-mix(in srgb, var(--aac-accent) 50%, transparent) 100%);
  transition: height 0.35s ease;
}

.aac-partition-viz__bar--hot {
  background: linear-gradient(180deg, var(--aac-red) 0%, color-mix(in srgb, var(--aac-red) 50%, transparent) 100%);
  box-shadow: 0 0 12px var(--aac-red-dim);
}

.aac-partition-viz__bar-label {
  font-family: var(--aac-font-mono);
  font-size: 10px;
  color: var(--aac-text-dim);
}

.aac-partition-viz__bar-count {
  font-family: var(--aac-font-mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--aac-accent);
}

.aac-partition-viz__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 14px;
  font-family: var(--aac-font-mono);
  font-size: 11px;
  color: var(--aac-text-muted);
}

.aac-partition-viz__stats strong {
  color: var(--aac-text);
}

.aac-partition-viz__note {
  margin: 12px 0 0;
  font-size: 12px;
  color: var(--aac-text-dim);
  font-family: var(--aac-font-mono);
}

/* ── Consumer lag simulator ── */

.aac-lag-sim {
  margin: 24px 0;
  padding: 20px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius-lg);
  background: var(--aac-bg-elevated);
}

.aac-lag-sim__controls {
  display: grid;
  gap: 16px;
  margin-bottom: 20px;
}

@media (min-width: 640px) {
  .aac-lag-sim__controls {
    grid-template-columns: repeat(2, 1fr);
  }
}

.aac-lag-sim__control {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-family: var(--aac-font-mono);
  font-size: 12px;
  color: var(--aac-text-muted);
}

.aac-lag-sim__control-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.aac-lag-sim__control-value {
  font-weight: 700;
  color: var(--aac-accent);
}

.aac-lag-sim__control input[type="range"] {
  width: 100%;
  accent-color: var(--aac-accent);
}

.aac-lag-sim__chart-wrap {
  position: relative;
  height: 220px;
  padding: 12px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius);
  background: var(--aac-bg);
}

.aac-lag-sim__chart-wrap canvas {
  width: 100% !important;
  height: 100% !important;
}

.aac-lag-sim__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
  margin-top: 14px;
  font-family: var(--aac-font-mono);
  font-size: 11px;
  color: var(--aac-text-muted);
}

.aac-lag-sim__stats strong {
  color: var(--aac-text);
}

.aac-lag-sim__stats .aac-lag-sim__stat--warn {
  color: var(--aac-red);
}

.aac-lag-sim__stats .aac-lag-sim__stat--ok {
  color: var(--aac-green);
}

.aac-lag-sim__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.aac-lag-sim__btn {
  appearance: none;
  padding: 6px 14px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius);
  background: transparent;
  color: var(--aac-text-muted);
  font-family: var(--aac-font-mono);
  font-size: 11px;
  cursor: pointer;
  transition: border-color var(--aac-transition), color var(--aac-transition);
}

.aac-lag-sim__btn:hover {
  border-color: var(--aac-accent);
  color: var(--aac-accent);
}

.aac-lag-sim__btn--primary {
  border-color: var(--aac-accent);
  background: var(--aac-accent-dim);
  color: var(--aac-accent);
}

.aac-lag-sim__note {
  margin: 12px 0 0;
  font-size: 12px;
  color: var(--aac-text-dim);
  font-family: var(--aac-font-mono);
}

/* ── Cheat sheets ── */

.aac-cheatsheet-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}

.aac-cheatsheet-nav a {
  padding: 8px 14px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius);
  font-size: 12px;
  font-weight: 600;
  text-decoration: none;
  color: var(--aac-text-muted);
  background: var(--aac-surface);
}

.aac-cheatsheet-nav a:hover {
  border-color: var(--aac-accent);
  color: var(--aac-accent);
  text-decoration: none;
}

.aac-cheatsheet {
  margin-bottom: 48px;
  padding: 22px 24px;
  border: 1px solid var(--aac-border);
  border-radius: 12px;
  background: var(--aac-surface);
  scroll-margin-top: calc(var(--aac-topbar-height, 56px) + 20px);
}

.aac-cheatsheet__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: 14px 20px;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--aac-border);
}

.aac-cheatsheet__title {
  margin: 0;
  font-family: var(--aac-font-display);
  font-size: 1.2rem;
  font-weight: 700;
}

.aac-cheatsheet__lede {
  margin: 6px 0 0;
  font-size: inherit;
  color: var(--aac-text-muted);
  max-width: 55ch;
}

.aac-cheatsheet__copy {
  appearance: none;
  justify-self: end;
  align-self: start;
  flex-shrink: 0;
  white-space: nowrap;
  height: fit-content;
  padding: 6px 12px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius);
  background: var(--aac-bg);
  color: var(--aac-text-muted);
  font-family: var(--aac-font-mono);
  font-size: 11px;
  line-height: 1.4;
  cursor: pointer;
}

.aac-cheatsheet__copy:hover,
.aac-cheatsheet__copy.is-copied {
  color: var(--aac-accent);
  border-color: var(--aac-accent);
}

.aac-cheatsheet-group {
  margin-bottom: 22px;
}

.aac-cheatsheet-group:last-child {
  margin-bottom: 0;
}

.aac-cheatsheet-group__title {
  margin: 0 0 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--aac-accent-secondary);
}

.aac-token-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--aac-font-size-table);
  margin-bottom: 10px;
}

.aac-token-table th,
.aac-token-table td {
  padding: 6px 10px;
  border: 1px solid var(--aac-border);
  text-align: left;
  vertical-align: top;
}

.aac-token-table thead th {
  font-size: 0.75em;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--aac-text-muted);
  background: var(--aac-bg);
}

.aac-token-table code {
  font-size: 0.92em;
  white-space: nowrap;
}

.aac-cheatsheet .aac-config-table {
  font-size: 12px;
}

.aac-cheatsheet .aac-config-table code {
  font-size: 11px;
  white-space: nowrap;
}

.aac-cheatsheet-code {
  margin: 0;
  padding: 14px 16px;
  border: 1px solid var(--aac-border);
  border-radius: 8px;
  background: #0a0e14;
  font-family: var(--aac-font-mono);
  font-size: var(--aac-font-size-code);
  line-height: 1.55;
  color: #e8eaed;
  overflow-x: auto;
  white-space: pre;
}

html[data-hp-theme="light"] .aac-cheatsheet-code {
  background: #f4f5f7;
  color: #1a1a2e;
}

.aac-cheat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
  margin: 12px 0 16px;
}

.aac-cheat-grid__item {
  padding: 12px 14px;
  border: 1px solid var(--aac-border);
  border-radius: 8px;
  background: var(--aac-bg);
}

.aac-cheat-grid__item h4 {
  margin: 0 0 6px;
  font-size: 12px;
  font-weight: 700;
  color: var(--aac-accent-secondary);
}

.aac-cheat-grid__item p {
  margin: 0;
  font-size: 12px;
  color: var(--aac-text-muted);
  line-height: 1.45;
}

.aac-cheat-grid__item code {
  font-size: 11px;
}

.aac-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--aac-font-size-table);
  margin: 12px 0 16px;
}

.aac-table th,
.aac-table td {
  padding: 8px 12px;
  border: 1px solid var(--aac-border);
  text-align: left;
  vertical-align: top;
}

.aac-table thead th {
  font-size: 0.75em;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--aac-text-muted);
  background: var(--aac-bg);
}

.aac-table code {
  font-size: 0.92em;
  white-space: nowrap;
}

@media print {
  body.applied-ai-core .aac-topbar,
  body.applied-ai-core .aac-toolbar,
  body.applied-ai-core .aac-sidebar,
  body.applied-ai-core .aac-mobile-nav,
  body.applied-ai-core .aac-cheatsheet-nav,
  body.applied-ai-core .aac-cheatsheet__copy {
    display: none !important;
  }

  body.applied-ai-core .aac-cheatsheet {
    break-inside: avoid;
    border: 1px solid #ccc;
  }

  body.applied-ai-core {
    background: #fff !important;
    color: #000 !important;
  }
}

/* ── Applied AI Core extensions ── */

.aac-callout--iac {
  background: var(--aac-teal-dim);
  border-color: color-mix(in srgb, var(--aac-teal) 35%, transparent);
}

.aac-callout--iac .aac-callout__label {
  color: var(--aac-teal);
}

.aac-dual-track__tab--gha.is-active,
.aac-dual-track__tab--k8s.is-active {
  background: var(--aac-accent-dim);
  color: var(--aac-accent);
  box-shadow: inset 0 -2px 0 var(--aac-accent);
}

.aac-dual-track__tab--gitlab.is-active,
.aac-dual-track__tab--ocp.is-active {
  background: var(--aac-security-dim);
  color: var(--aac-security);
  box-shadow: inset 0 -2px 0 var(--aac-security);
}

.aac-platform-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 16px;
  padding: 4px;
  border: 1px solid var(--aac-border);
  border-radius: 999px;
  background: var(--aac-bg-panel);
}

.aac-platform-toggle__label {
  padding-left: 10px;
  font-family: var(--aac-font-mono);
  font-size: 11px;
  color: var(--aac-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.aac-platform-toggle__btn {
  padding: 6px 14px;
  border: none;
  border-radius: 999px;
  font-family: var(--aac-font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--aac-text-muted);
  background: transparent;
  cursor: pointer;
  transition: background var(--aac-transition), color var(--aac-transition);
}

.aac-platform-toggle__btn.is-active[data-platform="gha"] {
  background: var(--aac-accent-dim);
  color: var(--aac-accent);
}

.aac-platform-toggle__btn.is-active[data-platform="gitlab"] {
  background: var(--aac-security-dim);
  color: var(--aac-security);
}

body.applied-ai-core[data-platform="gitlab"] .aac-yaml-gha {
  display: none;
}

body.applied-ai-core:not([data-platform="gitlab"]) .aac-yaml-gitlab {
  display: none;
}

.aac-persona-filter__btn[data-persona="security"].is-active {
  border-color: var(--persona-security);
  background: var(--persona-security-bg);
  color: var(--persona-security);
}

.aac-badge--security {
  background: var(--persona-security-bg);
  border-color: color-mix(in srgb, var(--persona-security) 35%, transparent);
  color: var(--persona-security);
}

/* Severity badges */
.aac-severity {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-family: var(--aac-font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.aac-severity--critical {
  background: rgba(220, 38, 38, 0.15);
  color: var(--aac-severity-critical);
  border: 1px solid rgba(220, 38, 38, 0.35);
}

.aac-severity--high {
  background: rgba(234, 88, 12, 0.15);
  color: var(--aac-severity-high);
  border: 1px solid rgba(234, 88, 12, 0.35);
}

.aac-severity--medium {
  background: rgba(234, 179, 8, 0.15);
  color: var(--aac-severity-medium);
  border: 1px solid rgba(234, 179, 8, 0.35);
}

.aac-severity--low {
  background: var(--aac-gray-dim);
  color: var(--aac-severity-low);
  border: 1px solid var(--aac-border);
}

/* SLSA level progress */
.aac-slsa {
  margin: 24px 0;
  padding: 24px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius-lg);
  background: var(--aac-bg-elevated);
}

.aac-slsa__track {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 16px;
}

.aac-slsa__level {
  position: relative;
  padding: 16px 12px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius);
  text-align: center;
  background: var(--aac-bg-panel);
  transition: border-color var(--aac-transition), box-shadow var(--aac-transition);
}

.aac-slsa__level.is-active {
  border-color: var(--aac-accent);
  box-shadow: 0 0 16px var(--aac-accent-dim);
}

.aac-slsa__level.is-target {
  border-color: var(--aac-green);
  box-shadow: 0 0 16px var(--aac-green-dim);
}

.aac-slsa__level-num {
  display: block;
  font-family: var(--aac-font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--aac-accent);
  margin-bottom: 4px;
}

.aac-slsa__level-label {
  display: block;
  font-size: 11px;
  color: var(--aac-text-muted);
  line-height: 1.4;
}

.aac-slsa__controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.aac-slsa__btn {
  appearance: none;
  padding: 6px 12px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius);
  background: var(--aac-bg);
  color: var(--aac-text-muted);
  font-family: var(--aac-font-mono);
  font-size: 11px;
  cursor: pointer;
}

.aac-slsa__btn:hover,
.aac-slsa__btn.is-active {
  border-color: var(--aac-accent);
  color: var(--aac-accent);
  background: var(--aac-accent-dim);
}

/* Pipeline flow diagram */
.aac-pipeline-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin: 24px 0;
  padding: 24px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius-lg);
  background: var(--aac-bg-elevated);
}

.aac-pipeline-flow__stage {
  flex: 1 1 100px;
  min-width: 90px;
  max-width: 140px;
  padding: 14px 10px;
  border: 1px solid var(--aac-border-bright);
  border-radius: var(--aac-radius);
  text-align: center;
  background: var(--aac-bg-panel);
  transition: transform var(--aac-transition), border-color var(--aac-transition);
}

.aac-pipeline-flow__stage:hover {
  transform: translateY(-2px);
  border-color: var(--aac-accent);
}

.aac-pipeline-flow__stage--security {
  border-color: color-mix(in srgb, var(--aac-security) 50%, transparent);
  background: var(--aac-security-dim);
}

.aac-pipeline-flow__stage-icon {
  font-size: 18px;
  margin-bottom: 6px;
}

.aac-pipeline-flow__stage-label {
  margin: 0;
  font-family: var(--aac-font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--aac-accent);
}

.aac-pipeline-flow__stage--security .aac-pipeline-flow__stage-label {
  color: var(--aac-security);
}

.aac-pipeline-flow__arrow {
  flex-shrink: 0;
  font-family: var(--aac-font-mono);
  font-size: 16px;
  color: var(--aac-text-dim);
}

/* Supply chain attack map */
.aac-supply-chain {
  margin: 24px 0;
  padding: 24px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius-lg);
  background: var(--aac-bg-elevated);
}

.aac-supply-chain__svg {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  display: block;
}

.aac-supply-chain__node {
  cursor: pointer;
  transition: opacity var(--aac-transition);
}

.aac-supply-chain__node:hover,
.aac-supply-chain__node.is-active {
  opacity: 1;
}

.aac-supply-chain__detail {
  margin-top: 16px;
  padding: 14px 16px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius);
  background: var(--aac-bg-panel);
  font-size: 14px;
  color: var(--aac-text-muted);
  min-height: 4rem;
}

.aac-supply-chain__detail strong {
  color: var(--aac-security);
}

/* DORA metrics calculator */
.aac-dora-calc {
  margin: 24px 0;
  padding: 24px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius-lg);
  background: var(--aac-bg-elevated);
}

.aac-dora-calc__grid {
  display: grid;
  gap: 20px;
}

@media (min-width: 768px) {
  .aac-dora-calc__grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

.aac-dora-calc__inputs {
  display: grid;
  gap: 16px;
}

.aac-dora-calc__field label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 8px;
  font-family: var(--aac-font-mono);
  font-size: 12px;
  color: var(--aac-text-muted);
}

.aac-dora-calc__field input,
.aac-dora-calc__field select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius);
  background: var(--aac-bg);
  color: var(--aac-text);
  font-family: var(--aac-font-mono);
  font-size: 13px;
}

.aac-dora-calc__field input:focus,
.aac-dora-calc__field select:focus {
  outline: none;
  border-color: var(--aac-accent);
}

.aac-dora-calc__result {
  padding: 20px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius);
  background: var(--aac-bg-panel);
  text-align: center;
}

.aac-dora-calc__tier {
  margin: 0 0 8px;
  font-family: var(--aac-font-display);
  font-size: 2rem;
  font-weight: 800;
}

.aac-dora-calc__tier--elite { color: var(--aac-green); }
.aac-dora-calc__tier--high { color: var(--aac-cyan); }
.aac-dora-calc__tier--medium { color: var(--aac-amber); }
.aac-dora-calc__tier--low { color: var(--aac-red); }

.aac-dora-calc__summary {
  margin: 0;
  font-size: 14px;
  color: var(--aac-text-muted);
  line-height: 1.6;
}

.aac-dora-calc__chart-wrap {
  margin-top: 20px;
  height: 200px;
  position: relative;
}

/* DORA metric cards */
.aac-dora-pillars {
  display: grid;
  gap: 12px;
  margin: 20px 0;
}

@media (min-width: 640px) {
  .aac-dora-pillars {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .aac-dora-pillars {
    grid-template-columns: repeat(4, 1fr);
  }
}

.aac-dora-pillar {
  padding: 16px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius-lg);
  background: var(--aac-bg-elevated);
}

.aac-dora-pillar__metric {
  margin: 0 0 4px;
  font-family: var(--aac-font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--aac-accent);
}

.aac-dora-pillar__name {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 600;
}

.aac-dora-pillar__desc {
  margin: 0;
  font-size: 13px;
  color: var(--aac-text-muted);
  line-height: 1.55;
}

.aac-ver {
  display: inline-block;
  margin-left: 8px;
  padding: 2px 8px;
  border: 1px solid var(--aac-border);
  border-radius: 999px;
  font-family: var(--aac-font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--aac-accent);
  background: var(--aac-accent-dim);
  vertical-align: middle;
}

.aac-ver--sec {
  background: var(--aac-security-dim);
  border-color: color-mix(in srgb, var(--aac-security) 40%, transparent);
  color: var(--aac-security);
}

.aac-lifecycle-ring {
  margin: 24px 0;
  padding: 24px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius-lg);
  background: var(--aac-bg-elevated);
  overflow-x: auto;
}

.aac-lifecycle-ring__stages {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  align-items: center;
}

.aac-lifecycle-ring__stage {
  padding: 10px 14px;
  border: 1px solid var(--aac-border-bright);
  border-radius: 999px;
  font-family: var(--aac-font-mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--aac-text-muted);
  background: var(--aac-bg-panel);
}

.aac-lifecycle-ring__stage--sec {
  border-color: var(--aac-security);
  color: var(--aac-security);
  background: var(--aac-security-dim);
}

.aac-lifecycle-ring__loop {
  flex-basis: 100%;
  text-align: center;
  margin-top: 12px;
  font-family: var(--aac-font-mono);
  font-size: 12px;
  color: var(--aac-accent);
}

/* ── Applied AI: track & chapter lists (no cards) ── */

.aac-track-list,
.aac-chapter-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius-lg);
  overflow: hidden;
  background: var(--aac-bg-elevated);
}

.aac-track-list__item,
.aac-chapter-list__item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 16px 20px;
  align-items: start;
  padding: 18px 20px;
  border-bottom: 1px solid var(--aac-border);
}

.aac-track-list__item:last-child,
.aac-chapter-list__item:last-child {
  border-bottom: 0;
}

.aac-track-list__item--llms { border-left: 4px solid var(--aac-track-llms, #3b82f6); }
.aac-track-list__item--rag { border-left: 4px solid var(--aac-track-rag, #14b8a6); }
.aac-track-list__item--prompt { border-left: 4px solid var(--aac-track-prompt, #f59e0b); }
.aac-track-list__item--agents { border-left: 4px solid var(--aac-track-agents, #a855f7); }
.aac-track-list__item--eval { border-left: 4px solid var(--aac-track-eval, #f43f5e); }
.aac-track-list__item--ship { border-left: 4px solid var(--aac-track-ship, #06b6d4); }

.aac-track-list__num,
.aac-chapter-list__num {
  font-family: var(--aac-font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--aac-text-dim);
  padding-top: 2px;
}

.aac-track-list__title,
.aac-chapter-list__title {
  margin: 0 0 6px;
  font-size: var(--aac-font-h3);
  font-weight: 600;
}

.aac-track-list__title a,
.aac-chapter-list__title a {
  color: var(--aac-text);
  text-decoration: none;
}

.aac-track-list__title a:hover,
.aac-chapter-list__title a:hover {
  color: var(--aac-accent);
  text-decoration: underline;
}

.aac-track-list__desc,
.aac-chapter-list__desc {
  margin: 0;
  font-size: var(--aac-font-size);
  line-height: var(--aac-line-height);
  color: var(--aac-text-muted);
}

.aac-chapter-list__meta {
  font-family: var(--aac-font-mono);
  font-size: 11px;
  color: var(--aac-text-dim);
  margin-top: 8px;
}

.aac-chapter-list__item.is-soon .aac-chapter-list__title a {
  color: var(--aac-text-muted);
  pointer-events: none;
}

.aac-chapter-list__item.is-soon .aac-chapter-list__meta::after {
  content: " · Coming soon";
  color: var(--aac-amber);
}

/* Lang / provider toggles in topbar */
.aac-topbar-prefs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.aac-lang-toggle,
.aac-provider-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius);
  overflow: hidden;
  background: var(--aac-bg-elevated);
}

.aac-lang-toggle__label,
.aac-provider-toggle__label {
  font-family: var(--aac-font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--aac-text-dim);
  padding-left: 8px;
}

.aac-lang-toggle__btn,
.aac-provider-toggle__btn {
  font-family: var(--aac-font-mono);
  font-size: 11px;
  padding: 6px 10px;
  border: 0;
  background: transparent;
  color: var(--aac-text-muted);
  cursor: pointer;
}

.aac-lang-toggle__btn.is-active,
.aac-provider-toggle__btn.is-active {
  background: var(--aac-accent-dim);
  color: var(--aac-accent);
}

/* Multi-panel code blocks */
.aac-code-panel {
  display: none;
}

.aac-code-panel.is-active {
  display: block;
}

.aac-codeblock__tabs {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 4px;
}

.aac-codeblock__tab {
  font-family: var(--aac-font-mono);
  font-size: 11px;
  padding: 4px 10px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: transparent;
  color: var(--aac-text-muted);
  cursor: pointer;
}

.aac-codeblock__tab.is-active {
  background: var(--aac-accent-dim);
  border-color: color-mix(in srgb, var(--aac-accent) 35%, transparent);
  color: var(--aac-accent);
}

.aac-token-widget {
  margin: 20px 0;
  padding: 16px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius-lg);
  background: var(--aac-bg-elevated);
}

.aac-token-widget textarea {
  width: 100%;
  min-height: 96px;
  padding: 12px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius);
  background: var(--aac-bg);
  color: var(--aac-text);
  font-family: var(--aac-font-mono);
  font-size: var(--core-font-code);
  resize: vertical;
}

.aac-token-widget__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.aac-token-widget__stat {
  padding: 10px 12px;
  border: 1px solid var(--aac-border);
  border-radius: var(--aac-radius);
  background: var(--aac-bg-panel);
}

.aac-token-widget__stat-label {
  display: block;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--aac-text-dim);
  margin-bottom: 4px;
}

.aac-token-widget__stat-value {
  font-weight: 600;
  color: var(--aac-text);
}

.aac-callout--cost {
  border-left-color: var(--aac-green);
}

html[data-hp-theme="light"] body.applied-ai-core {
  --aac-bg: #f4f6fa;
  --aac-bg-elevated: #ffffff;
  --aac-bg-panel: #eef1f6;
  --aac-border: #d0d7de;
  --aac-border-bright: #afb8c1;
  --aac-text: #0d1117;
  --aac-text-muted: #57606a;
  --aac-text-dim: #6e7781;
  --aac-accent: #2563eb;
  --aac-accent-dim: rgba(37, 99, 235, 0.1);
  --aac-shadow: 0 8px 24px rgba(13, 17, 23, 0.08);
}

body.applied-ai-core.aac-track-llms {
  --aac-accent: var(--aac-track-llms, #3b82f6);
  --aac-accent-dim: rgba(59, 130, 246, 0.14);
}

body.applied-ai-core.aac-track-rag {
  --aac-accent: var(--aac-track-rag, #14b8a6);
  --aac-accent-dim: rgba(20, 184, 166, 0.14);
}

body.applied-ai-core.aac-track-prompt {
  --aac-accent: var(--aac-track-prompt, #f59e0b);
  --aac-accent-dim: rgba(245, 158, 11, 0.14);
}

body.applied-ai-core.aac-track-agents {
  --aac-accent: var(--aac-track-agents, #a855f7);
  --aac-accent-dim: rgba(168, 85, 247, 0.14);
}

body.applied-ai-core.aac-track-eval {
  --aac-accent: var(--aac-track-eval, #f43f5e);
  --aac-accent-dim: rgba(244, 63, 94, 0.14);
}

body.applied-ai-core.aac-track-ship {
  --aac-accent: var(--aac-track-ship, #06b6d4);
  --aac-accent-dim: rgba(6, 182, 212, 0.14);
}

@media (min-width: 900px) {
  .aac-pillars--3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ── Applied AI hub index — editorial track list (no cards) ── */

body.applied-ai-core.aac-hub-index {
  --aac-hub-bg: #0d1117;
  --aac-hub-surface: #161b22;
  --aac-hub-border: rgba(255, 255, 255, 0.08);
  --aac-hub-text: #e6edf3;
  --aac-hub-muted: #8b949e;
  --aac-hub-font-body: "IBM Plex Sans", system-ui, sans-serif;
  --aac-hub-font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --aac-hub-radius: 8px;
  --aac-hub-radius-pill: 4px;
  --aac-hub-max: min(1120px, 94vw);

  background: var(--aac-hub-bg);
  color: var(--aac-hub-text);
  font-family: var(--aac-hub-font-body);
}

body.applied-ai-core.aac-hub-index .aac-main,
body.applied-ai-core.aac-hub-index .aac-hub-main {
  max-width: var(--aac-hub-max);
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 2rem) 0;
}

body.applied-ai-core.aac-hub-index a {
  color: inherit;
}

/* Zone 1 — header */
.aac-hub-header {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  min-height: min(30vh, 320px);
  padding: clamp(2rem, 5vw, 3.5rem) 0 clamp(2rem, 4vw, 2.75rem);
  align-items: start;
}

@media (min-width: 900px) {
  .aac-hub-header {
    grid-template-columns: 1fr minmax(200px, 240px);
    gap: 3rem;
  }
}

.aac-hub-kicker {
  margin: 0 0 1.25rem;
  font-family: var(--aac-hub-font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--aac-hub-muted);
}

.aac-hub-title {
  margin: 0;
  font-family: var(--aac-hub-font-body);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.aac-hub-title__line {
  display: block;
  font-size: clamp(2.25rem, 1.5rem + 3.5vw, 3.75rem);
}

.aac-hub-title__line--rule {
  padding-bottom: 0.35rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  width: fit-content;
  max-width: 100%;
}

.aac-hub-tagline {
  margin: 1.35rem 0 0;
  font-family: var(--aac-hub-font-mono);
  font-size: 13px;
  font-weight: 400;
  line-height: 1.5;
  color: var(--aac-hub-muted);
}

.aac-hub-stats {
  display: flex;
  flex-wrap: nowrap;
  gap: 0.5rem;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.aac-hub-stats::-webkit-scrollbar {
  display: none;
}

.aac-hub-stat {
  flex: 0 0 auto;
  padding: 0.35rem 0.65rem;
  border: 1px solid var(--aac-hub-border);
  border-radius: var(--aac-hub-radius-pill);
  background: transparent;
  font-family: var(--aac-hub-font-mono);
  font-size: 11px;
  color: var(--aac-hub-muted);
  white-space: nowrap;
}

/* Header TOC — desktop */
.aac-hub-toc {
  display: none;
}

@media (min-width: 900px) {
  .aac-hub-toc {
    display: block;
    padding-top: 0.5rem;
  }
}

.aac-hub-toc__list {
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--aac-hub-font-mono);
  font-size: 12px;
  line-height: 1.85;
  color: var(--aac-hub-muted);
}

.aac-hub-toc__list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.aac-hub-toc__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--track-accent, var(--aac-track-llms));
  flex-shrink: 0;
}

.aac-hub-toc__id {
  color: var(--aac-hub-text);
  font-weight: 500;
  min-width: 1.75rem;
}

.aac-hub-toc__rule {
  margin: 1.25rem 0 0.85rem;
  border: none;
  border-top: 1px solid var(--aac-hub-border);
}

.aac-hub-toc__note {
  margin: 0;
  font-family: var(--aac-hub-font-mono);
  font-size: 11px;
  color: var(--aac-hub-muted);
  opacity: 0.85;
}

.aac-hub-toc__note a {
  color: inherit;
  text-decoration: none;
}

.aac-hub-toc__note a:hover {
  color: var(--aac-hub-text);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.aac-hub-divider {
  margin: 0;
  border: none;
  border-top: 1px solid var(--aac-hub-border);
}

/* Zone 2 — track rows */
.aac-track-rows {
  margin: 0;
  padding: 0;
  list-style: none;
}

.aac-track-row {
  position: relative;
  display: grid;
  grid-template-columns: 3px 1fr;
  gap: 0 0.85rem;
  padding: 1.35rem 0;
  border-bottom: 1px solid var(--aac-hub-border);
  outline: none;
  transition: background 0.15s ease;
}

.aac-track-row::before {
  content: "";
  grid-row: 1 / -1;
  grid-column: 1;
  background: var(--track-accent);
  border-radius: 2px;
  opacity: 1;
}

.aac-track-row.is-active-track::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: min(200px, 40%);
  background: linear-gradient(90deg, color-mix(in srgb, var(--track-accent) 6%, transparent), transparent);
  pointer-events: none;
  z-index: 0;
}

.aac-track-row > * {
  position: relative;
  z-index: 1;
}

.aac-track-row:hover,
.aac-track-row:focus-within {
  background: rgba(255, 255, 255, 0.015);
}

.aac-track-row:hover .aac-track-row__num,
.aac-track-row:focus-within .aac-track-row__num {
  opacity: 0.4;
}

.aac-track-row:focus-visible {
  outline: 1px solid var(--track-accent);
  outline-offset: 2px;
  border-radius: 4px;
}

@media (min-width: 640px) {
  .aac-track-row {
    grid-template-columns: 80px 280px 1fr 120px;
    gap: 0 1.25rem;
    align-items: start;
    padding: 1.75rem 0;
  }

  .aac-track-row::before {
    display: none;
  }

  .aac-track-row__identity {
    border-left: 2px solid var(--track-accent);
    padding-left: 16px;
  }
}

.aac-track-row__num {
  display: none;
  font-family: var(--aac-hub-font-mono);
  font-size: 48px;
  font-weight: 300;
  line-height: 1;
  font-feature-settings: "tnum" 1;
  color: var(--track-accent);
  opacity: var(--track-num-opacity, 0.25);
  transition: opacity 0.15s ease;
}

@media (min-width: 640px) {
  .aac-track-row__num {
    display: block;
  }
}

.aac-track-row__identity {
  grid-column: 2;
}

@media (max-width: 639px) {
  .aac-track-row {
    grid-template-columns: 3px 1fr;
    grid-template-rows: auto auto auto auto;
  }

  .aac-track-row__num {
    display: block;
    grid-column: 2;
    grid-row: 1;
    font-size: 14px;
    font-weight: 400;
    color: var(--aac-hub-muted);
    opacity: 1;
    margin-bottom: 0.15rem;
  }

  .aac-track-row__identity {
    grid-column: 2;
    grid-row: 2;
    border-left: none;
    padding-left: 0;
  }

  .aac-track-row__guides {
    grid-column: 2;
    grid-row: 3;
    margin-top: 0.65rem;
  }

  .aac-track-row__start {
    grid-column: 2;
    grid-row: 4;
    justify-self: end;
    margin-top: 0.65rem;
  }
}

.aac-track-row__name {
  margin: 0;
  font-family: var(--aac-hub-font-body);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.3;
}

@media (min-width: 640px) {
  .aac-track-row__name {
    font-size: 18px;
  }
}

.aac-track-row__name a {
  text-decoration: none;
  color: var(--aac-hub-text);
}

.aac-track-row__name a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.aac-track-row__tagline {
  margin: 0.35rem 0 0;
  font-family: var(--aac-hub-font-mono);
  font-size: 12px;
  color: var(--aac-hub-muted);
  line-height: 1.45;
}

.aac-track-row__guides {
  grid-column: 2;
  margin-top: 0.85rem;
}

@media (min-width: 640px) {
  .aac-track-row__guides {
    grid-column: 3;
    margin-top: 0;
  }
}

.aac-track-row__pills {
  display: flex;
  flex-wrap: nowrap;
  gap: 0;
  margin: 0;
  padding: 0;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  font-family: var(--aac-hub-font-mono);
  font-size: 12px;
  line-height: 1.6;
}

.aac-track-row__pills::-webkit-scrollbar {
  display: none;
}

.aac-track-row__pills a {
  flex: 0 0 auto;
  color: var(--aac-hub-muted);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.12s ease;
}

.aac-track-row__pills a:not(:last-child)::after {
  content: " · ";
  color: var(--aac-hub-muted);
  pointer-events: none;
}

.aac-track-row__pills a:hover {
  color: var(--aac-hub-text);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.aac-track-row__start-hint {
  margin: 0.5rem 0 0;
  font-family: var(--aac-hub-font-mono);
  font-size: 11px;
  color: var(--track-accent);
}

.aac-track-row__start {
  grid-column: 2;
  justify-self: end;
  margin-top: 0.75rem;
  padding: 0.25rem 0.5rem;
  font-family: var(--aac-hub-font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--track-accent);
  text-decoration: none;
  border-radius: var(--aac-hub-radius-pill);
  transition: background 0.12s ease;
}

@media (min-width: 640px) {
  .aac-track-row__start {
    grid-column: 4;
    grid-row: 1 / 3;
    align-self: start;
    justify-self: end;
    margin-top: 0.15rem;
  }
}

.aac-track-row__start:hover {
  background: color-mix(in srgb, var(--track-accent) 8%, transparent);
}

/* Zone 3 — footer band */
.aac-hub-footer {
  margin-top: 0;
  background: var(--aac-hub-surface);
  border-top: 1px solid var(--aac-hub-border);
}

.aac-hub-footer__inner {
  max-width: var(--aac-hub-max);
  margin: 0 auto;
  padding: 1.25rem clamp(1rem, 4vw, 2rem);
  display: grid;
  gap: 0.75rem;
  font-family: var(--aac-hub-font-mono);
  font-size: 12px;
  color: var(--aac-hub-muted);
}

@media (min-width: 768px) {
  .aac-hub-footer__inner {
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 1rem;
  }

  .aac-hub-footer__brand {
    justify-self: start;
  }

  .aac-hub-footer__nav {
    justify-self: center;
    text-align: center;
  }

  .aac-hub-footer__series {
    justify-self: end;
    text-align: right;
  }
}

.aac-hub-footer__brand,
.aac-hub-footer__nav,
.aac-hub-footer__series {
  margin: 0;
}

.aac-hub-footer a {
  color: var(--aac-hub-muted);
  text-decoration: none;
}

.aac-hub-footer a:hover {
  color: var(--aac-hub-text);
  text-decoration: underline;
  text-underline-offset: 2px;
}

@media (max-width: 639px) {
  .aac-track-row:hover .aac-track-row__num,
  .aac-track-row:focus-within .aac-track-row__num {
    opacity: 1;
  }
}

.aac-hub-footer__series a + a::before {
  content: " · ";
  color: var(--aac-hub-muted);
  pointer-events: none;
}

.aac-hub-footer__series span {
  margin-right: 0.35rem;
}

/* Load stagger */
@keyframes aac-hub-fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes aac-hub-slide-in {
  from {
    opacity: 0;
    transform: translateX(-12px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

html:not(.aac-hub-loaded) .aac-hub-header {
  opacity: 0;
}

html.aac-hub-loaded .aac-hub-header {
  animation: aac-hub-fade-in 300ms ease-out forwards;
}

html:not(.aac-hub-loaded) .aac-track-row {
  opacity: 0;
  transform: translateX(-12px);
}

html.aac-hub-loaded .aac-track-row {
  animation: aac-hub-slide-in 300ms cubic-bezier(0.33, 1, 0.68, 1) forwards;
}

html.aac-hub-loaded .aac-track-row:nth-child(1) { animation-delay: 80ms; }
html.aac-hub-loaded .aac-track-row:nth-child(2) { animation-delay: 140ms; }
html.aac-hub-loaded .aac-track-row:nth-child(3) { animation-delay: 200ms; }
html.aac-hub-loaded .aac-track-row:nth-child(4) { animation-delay: 260ms; }
html.aac-hub-loaded .aac-track-row:nth-child(5) { animation-delay: 320ms; }
html.aac-hub-loaded .aac-track-row:nth-child(6) { animation-delay: 360ms; }

@media (prefers-reduced-motion: reduce) {
  html:not(.aac-hub-loaded) .aac-hub-header,
  html:not(.aac-hub-loaded) .aac-track-row {
    opacity: 1;
    transform: none;
  }

  .aac-hub-header,
  .aac-track-row {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}

html[data-hp-theme="light"] body.applied-ai-core.aac-hub-index {
  --aac-hub-bg: #f5f4f8;
  --aac-hub-surface: #ffffff;
  --aac-hub-border: rgba(8, 9, 15, 0.1);
  --aac-hub-text: #08090f;
  --aac-hub-muted: #4b5563;
}

html[data-hp-theme="light"] .aac-hub-title__line--rule {
  border-bottom-color: rgba(8, 9, 15, 0.12);
}

html[data-hp-theme="light"] .aac-track-row:hover,
html[data-hp-theme="light"] .aac-track-row:focus-within {
  background: rgba(8, 9, 15, 0.025);
}