/* ==========================================================================
   prehog.css

   v2: links benlive.tv's actual shared design system directly from the
   document head rather than maintaining a parallel token set. This reverses the original
   "must render standalone when cloned" rationale — this repo already
   depends on host-only scripts (/js/theme-toggle.js, /js/nav-toggle.js,
   /js/animation-observer.js) with documented graceful degradation when
   opened outside benlive.tv; extending that same acknowledged host
   coupling to CSS is consistent, not a new kind of compromise. See
   docs/architecture.md and docs/decisions.md for the full reasoning.
   ========================================================================== */

:root {
  /* prehog-specific aliases onto the shared token system, not new colors.
     Dark is the default everywhere else on the site — prehog matches. */
  --bg: var(--bg-dark);
  --bg-raised: var(--bg-card);
  --fg: var(--text-primary);
  --fg-muted: var(--text-secondary);
  --fg-faint: var(--text-muted);
  --border-panel: color-mix(in oklch, var(--border) 60%, var(--text-secondary) 40%);

  /* prehog's own accent within the shared palette — orange, not the
     site's default green/blue pairing — gives this page its own identity
     without inventing new colors. --accent is for BACKGROUNDS only
     (buttons, dots, the skip-link) — verified ≥4.5:1 against the
     near-black/white text placed on it in both themes. --accent-text is
     the separate token for accent color used AS text: the raw
     --accent-orange (a light oklch(75%,...) tone, tuned for legibility on
     dark surfaces) fails WCAG AA as small text on this page's light-theme
     background, so it gets a dedicated darker override there. Using the
     wrong one for the wrong purpose is the actual failure mode — don't
     conflate them again. */
  --accent: var(--accent-orange);
  --accent-text: var(--accent-orange);
  --accent-quiet: color-mix(in oklch, var(--accent-text) 75%, var(--text-secondary) 25%);

  --font-display: 'Iowan Old Style', 'Georgia', 'Times New Roman', serif;
  --font-ui: -apple-system, 'Inter', 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'SF Mono', 'Menlo', 'Consolas', monospace;

  --measure: 60ch;
  --radius: var(--radius-lg);
  --touch: var(--touch-target-min);

  --dur-fast: var(--duration-fast);
  --dur-med: var(--duration-slow);
  --ease: var(--organic-ease-soft);

  /* JS-overridden by /js/nav-toggle.js once it measures the real fixed-nav
     height (same fallback pattern as port.css / login.css). */
  --nav-shell-height: clamp(4.9rem, calc(4rem + 2.4vh), 5.75rem);
}

/* --accent-text overrides: the shared --accent-orange token measures
   4.4:1 on this page's dark background and ~2.9:1 on its light one — both
   fail WCAG AA for small text (needs 4.5:1). These values are verified
   against the actual rendered pixel colors, not assumed from the oklch
   source values. See the --accent-text comment above for why this needs
   to be a separate token from --accent (which stays the raw site color —
   it's only ever used as a background here, where it passes). */
html[data-theme='dark'] {
  --accent-text: #ff7a52; /* 5.97:1 on --bg-dark */
}
html[data-theme='light'] {
  --accent-text: #b8391f; /* 5.51:1 on --bg-dark's light override */
  --border-panel: color-mix(in oklch, var(--border) 60%, var(--text-primary) 20%);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-ui);
  line-height: 1.55;
  overflow-x: hidden;
  transition: background-color var(--dur-med) var(--ease), color var(--dur-med) var(--ease);
}
h1, h2, h3 { font-family: var(--font-display); line-height: 1.1; margin: 0 0 var(--space-sm); }
p { margin: 0 0 var(--space-sm); }
a { color: inherit; }
code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--light-subtle);
  padding: 0.1em 0.4em;
  border-radius: var(--radius-sm);
}

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

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: var(--z-tooltip, 70);
  background: var(--accent); color: #14100c; padding: 0.75rem 1.25rem;
  border-radius: 0 0 8px 0; font-weight: 600;
}
.skip-link:focus { left: 0; }

:focus-visible {
  outline: 2.5px solid var(--accent);
  outline-offset: 2px;
}

.container { max-width: 1180px; margin: 0 auto; padding-inline: var(--space-md); }

/* nav { --nav-extra-offset } isn't declared by _navigation.css itself —
   landing.css sets it per-page; prehog needs its own value for the
   mobile flyout to sit at the right offset below the fixed nav. */
nav { --nav-extra-offset: clamp(0.75rem, 2vh, 1.5rem); }

/* ---------- Deck chrome: progress + dots ---------- */
.deck-chrome {
  position: sticky; margin-top: var(--nav-shell-height); top: var(--nav-shell-height); z-index: var(--z-fixed, 30);
  background: color-mix(in oklch, var(--bg) 92%, transparent);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  padding-block: var(--space-xs);
}
.deck-progress { position: relative; height: 4px; background: var(--border); border-radius: 999px; overflow: hidden; }
.deck-progress-bar {
  position: absolute; inset: 0 auto 0 0; height: 100%; width: 11.11%;
  background: var(--prism-gradient-112); background-size: var(--prism-size);
  transition: width var(--dur-med) var(--ease);
}
.deck-progress-timer {
  position: absolute; inset: 0 0 0 auto; height: 100%; width: 0%;
  background: color-mix(in oklch, var(--fg) 30%, transparent);
  transform-origin: right center; transition: width linear;
}
.deck-dots {
  display: flex; gap: 0.35rem; list-style: none; margin: var(--space-xs) auto 0; padding: 0 var(--space-md);
  max-width: 1180px; overflow-x: auto; scrollbar-width: none;
}
.deck-dots::-webkit-scrollbar { display: none; }
.deck-dot {
  min-width: var(--touch); min-height: 28px; border-radius: 999px; border: 1px solid var(--border);
  background: transparent; color: var(--fg-muted); font-size: 0.75rem; cursor: pointer; flex-shrink: 0;
  padding-inline: 0.6rem; transition: background-color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}
.deck-dot[aria-current='true'] {
  background: var(--accent); border-color: var(--accent); color: #14100c; font-weight: 600;
  transform: scale(1.08);
}
.deck-controls {
  display: flex; align-items: center; justify-content: center; gap: var(--space-sm);
  width: fit-content; margin: var(--space-xs) auto 0;
  background: color-mix(in oklch, var(--bg-raised) 88%, transparent);
  border: 1px solid var(--border); border-radius: 999px; padding: 0.25rem 0.5rem;
}

/* ---------- Slides ---------- */
.deck { display: block; }
.slide {
  min-height: calc(100dvh - var(--nav-shell-height));
  display: flex; align-items: center; padding-block: var(--space-xl);
  border-bottom: 1px solid var(--border);
  scroll-margin-top: calc(var(--nav-shell-height) + 3rem);
}
.slide-inner { width: 100%; max-width: 1180px; margin: 0 auto; padding-inline: var(--space-md); }
.slide-inner-split { display: grid; gap: var(--space-lg); align-items: center; }
@media (min-width: 900px) {
  .slide-inner-split { grid-template-columns: 1.1fr 1fr; }
  .slide-inner-split-reverse { grid-template-columns: 1fr 1.1fr; }
  .slide-inner-split-reverse .slide-text { order: 2; }
  .slide-inner-split-reverse .slide-figure { order: 1; }
}

.eyebrow {
  font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--accent-quiet); margin-bottom: var(--space-sm);
}
.slide-title { font-size: clamp(1.9rem, 4.5vw, 3rem); font-weight: 600; }
.slide-title-hero {
  font-size: clamp(3.5rem, 14vw, 8rem); letter-spacing: -0.02em; font-weight: 800;
  background: var(--prism-gradient-118); background-size: var(--prism-size); background-repeat: var(--prism-repeat);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
  animation: prismFlow var(--prism-speed-slow) linear infinite;
}
.slide h1[tabindex='-1']:focus, .slide h2[tabindex='-1']:focus { outline: none; }
.slide-lede { font-size: clamp(1.2rem, 2.4vw, 1.6rem); color: var(--fg-muted); max-width: var(--measure); }
.slide-body { max-width: var(--measure); font-size: clamp(1rem, 1.2vw, 1.1rem); }
.slide-body-large { max-width: 72ch; font-size: clamp(1.15rem, 2vw, 1.5rem); }
.slide-body-callout { font-family: var(--font-display); font-style: italic; font-size: 1.2rem; color: var(--accent-quiet); }
.slide-fine { color: var(--fg-faint); font-size: 0.85rem; max-width: var(--measure); }

.trait-list { list-style: none; padding: 0; margin: var(--space-md) 0 0; display: grid; gap: 0.6rem; }
.trait-list li { padding-left: 1.4rem; position: relative; }
.trait-list li::before { content: '—'; position: absolute; left: 0; color: var(--accent-text); }

/* ---------- Buttons ---------- */
.slide-actions { margin-top: var(--space-md); display: flex; gap: 0.75rem; flex-wrap: wrap; align-items: center; }
.btn {
  display: inline-flex; align-items: center; gap: 0.4rem; min-height: var(--touch);
  padding: 0.7rem 1.3rem; border-radius: 999px; font-weight: 600; text-decoration: none;
  cursor: pointer; border: 1.5px solid transparent; font-size: 0.95rem;
  transition: transform var(--dur-fast) var(--ease), background-color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--accent); color: #14100c; }
.btn-secondary { background: transparent; border-color: var(--border); color: var(--fg); }
.btn-secondary:hover { border-color: var(--accent); }

/* Primary CTA — the layered glass-shimmer treatment from _chat-cta.css,
   scaled down and reserved for the two highest-emphasis CTAs (deck open,
   GitHub source) so it reads as an accent, not wallpaper. */
.btn-glass {
  position: relative; isolation: isolate; contain: paint;
  overflow: hidden; overflow: clip;
  background: linear-gradient(140deg,
    color-mix(in oklch, var(--bg-dark) 92%, var(--accent-orange) 8%) 0%,
    color-mix(in oklch, var(--bg-dark) 80%, var(--accent-orange) 20%) 60%,
    color-mix(in oklch, var(--bg-dark) 65%, var(--accent-orange) 35%) 100%);
  border: 1.5px solid color-mix(in oklch, var(--accent-orange) 45%, transparent);
  box-shadow:
    0 1px 0 0 rgba(255,255,255,0.1) inset,
    0 -2px 4px 0 rgba(0,0,0,0.35) inset,
    0 0 0 1px rgba(0,0,0,0.1),
    0 8px 20px rgba(0,0,0,0.3);
  color: var(--text-primary);
  transition: transform 0.28s cubic-bezier(0.34, 1.56, 0.64, 1), border-color 0.24s ease, box-shadow 0.32s ease;
}
.btn-glass::after {
  content: ''; position: absolute; inset: -16% -50%; border-radius: inherit;
  background: linear-gradient(108deg,
    transparent 12%, rgba(255,255,255,0.005) 24%, rgba(255,255,255,0.06) 38%,
    rgba(255,255,255,0.2) 50%, rgba(255,255,255,0.06) 62%, rgba(255,255,255,0.005) 76%, transparent 88%);
  opacity: 0.25; pointer-events: none; z-index: 0; will-change: transform, opacity;
  animation: ctaGlassSweep 6s ease-in-out infinite alternate;
}
.btn-glass > * { position: relative; z-index: 1; }
.btn-glass:hover {
  transform: translateY(-2px);
  border-color: color-mix(in oklch, var(--accent-orange) 65%, transparent);
  box-shadow:
    0 1px 0 0 rgba(255,255,255,0.14) inset,
    0 -2px 4px 0 rgba(0,0,0,0.3) inset,
    0 0 0 1px rgba(0,0,0,0.12),
    0 12px 28px rgba(0,0,0,0.36);
}
.btn-glass:hover::after { opacity: 0.5; animation-duration: 3.6s; }

/* ---------- SVG illustrations ---------- */
.slide-figure { display: flex; justify-content: center; }
.illo { width: 100%; max-width: 420px; height: auto; overflow: visible; color: var(--fg); }
.illo-large { max-width: 480px; }
/* paint-order stroke trick: a background-colored halo behind each label so
   text stays legible where it crosses connecting lines, without needing
   individually hand-sized background rects per label. */
.node-label {
  font-family: var(--font-mono); font-size: 10.5px; font-weight: 650; fill: var(--fg-muted);
  paint-order: stroke fill; stroke: var(--bg); stroke-width: 4.5px; stroke-linejoin: round;
}
.node-label-core { fill: var(--accent-quiet); font-weight: 700; font-size: 10px; }
.node-fill { fill: color-mix(in oklch, var(--accent) 22%, transparent); }
.node-fill-core { fill: color-mix(in oklch, var(--accent) 34%, transparent); }

/* pathLength="100" is set on every animated shape in the markup, so this
   single dasharray/offset works correctly regardless of actual geometry —
   no per-shape magic numbers, no JS getTotalLength() pass. */
[data-animate-draw] path[data-draw], [data-animate-draw] circle[data-draw],
[data-animate-draw] polygon[data-draw], [data-animate-draw] rect[data-draw] {
  stroke-dasharray: 100; stroke-dashoffset: 100; opacity: 0;
  animation: draw-in 700ms var(--ease) forwards;
  animation-delay: var(--draw-delay, 0ms);
}
[data-animate-draw] [data-pop] {
  opacity: 0; transform: scale(0.5); transform-box: fill-box; transform-origin: center;
  animation: pop-in 420ms var(--ease) forwards;
  animation-delay: var(--pop-delay, 500ms);
}
[data-animate-draw] .node-label {
  opacity: 0; animation: fadeIn 400ms ease forwards;
  animation-delay: var(--label-delay, 800ms);
}
[data-animate-draw].is-visible [data-draw],
[data-animate-draw].is-visible [data-pop],
[data-animate-draw].is-visible .node-label { animation-play-state: running; }
[data-animate-draw]:not(.is-visible) [data-draw],
[data-animate-draw]:not(.is-visible) [data-pop],
[data-animate-draw]:not(.is-visible) .node-label { animation-play-state: paused; }
@keyframes draw-in { to { stroke-dashoffset: 0; opacity: 1; } }
@keyframes pop-in { to { opacity: 1; transform: scale(1); } }

.loop-ring {
  stroke-dasharray: 4 6; opacity: 0.5;
  animation: loop-orbit 24s linear infinite;
}
@keyframes loop-orbit { to { stroke-dashoffset: -100; } }

/* ---------- Evidence / QA table / inspect grid ---------- */
.evidence-grid { display: grid; gap: var(--space-md); margin-top: var(--space-lg); grid-template-columns: 1fr; }
@media (min-width: 720px) { .evidence-grid { grid-template-columns: repeat(3, 1fr); } }
.evidence-card {
  position: relative;
  background: var(--bg-raised); border: 2px solid var(--border-panel); border-radius: var(--radius);
  padding: var(--space-md); padding-top: calc(var(--space-md) + 0.6rem);
  display: flex; flex-direction: column; gap: 0.4rem;
  transition: border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}
.evidence-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.evidence-card::before {
  content: attr(data-tag); position: absolute; top: -1px; left: var(--space-md);
  transform: translateY(-50%); background: var(--bg);
  font-family: var(--font-mono); font-size: 0.65rem; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--fg-faint); padding-inline: 0.4rem;
}
.evidence-card h3 { margin-bottom: 0; font-size: 1.15rem; }
.evidence-meta { font-family: var(--font-mono); font-size: 0.78rem; color: var(--accent-quiet); margin: 0; }
.evidence-link {
  margin-top: auto; font-weight: 600; text-decoration: none; padding-top: 0.5rem; display: inline-flex;
  align-items: center; gap: 0.3rem; color: var(--accent-text);
  transition: gap var(--dur-fast) var(--ease);
}
.evidence-link:hover { gap: 0.5rem; }

.qa-table { margin-top: var(--space-lg); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.qa-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-sm); padding: 0.85rem var(--space-sm); border-top: 1px solid var(--border); font-size: 0.92rem; }
.qa-row:first-child { border-top: none; }
.qa-row-head { background: var(--light-subtle); font-weight: 700; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.04em; }

.inspect-grid { display: grid; gap: var(--space-sm); margin-top: var(--space-lg); grid-template-columns: 1fr; }
@media (min-width: 640px) { .inspect-grid { grid-template-columns: repeat(2, 1fr); } }
.inspect-card {
  display: flex; flex-direction: column; gap: 0.2rem; text-decoration: none;
  border: 1px solid var(--border); border-radius: var(--radius); padding: var(--space-sm) var(--space-md);
  min-height: var(--touch); justify-content: center;
  transition: border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}
.inspect-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.inspect-label { font-weight: 700; }
.inspect-detail { font-family: var(--font-mono); font-size: 0.8rem; color: var(--fg-muted); }

/* ---------- Deck-attached prev/next controls ---------- */
.deck-nav-btn {
  width: var(--touch); height: var(--touch); border-radius: 50%; border: none;
  background: transparent; color: var(--fg); cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: background-color var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease);
}
.deck-nav-btn:hover { background: var(--light-subtle); }
.deck-nav-btn:disabled { opacity: 0.35; cursor: not-allowed; }
.deck-nav-btn:disabled:hover { background: transparent; }
.deck-nav-btn svg { width: 18px; height: 18px; }
.deck-position { font-family: var(--font-mono); font-size: 0.8rem; color: var(--fg-muted); min-width: 3.5ch; text-align: center; }

/* Playback is part of the deck control group, never a floating overlay. */
.deck-playback { display: flex; }
.deck-playback-btn {
  width: calc(var(--touch) * 0.82); height: calc(var(--touch) * 0.82); border-radius: 50%;
  border: 1px solid var(--border); background: transparent; color: var(--fg);
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-md);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  transition: border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}
.deck-playback-btn:hover { border-color: var(--accent); transform: scale(1.05); }
.deck-playback-btn svg { width: 18px; height: 18px; }
.deck-playback-btn .icon-pause { display: none; }
.deck-playback[data-playing='true'] .icon-play { display: none; }
.deck-playback[data-playing='true'] .icon-pause { display: block; }

/* ---------- Transparency / survey panel (shared dialog chrome) ---------- */
.panel-overlay[hidden] { display: none; }
.panel-overlay { position: fixed; inset: 0; z-index: var(--z-modal, 60); display: flex; align-items: flex-end; }
@media (min-width: 640px) { .panel-overlay { align-items: center; justify-content: center; } }
.panel-backdrop { position: absolute; inset: 0; background: rgba(4,6,12,0.6); -webkit-backdrop-filter: blur(2px); backdrop-filter: blur(2px); }
.panel-dialog {
  position: relative; z-index: 1; background: var(--bg-raised); border: 2px solid var(--border-panel);
  border-radius: 16px 16px 0 0; padding: var(--space-lg) var(--space-md) var(--space-md);
  max-width: 560px; width: 100%; max-height: 85vh; overflow-y: auto;
}
@media (min-width: 640px) { .panel-dialog { border-radius: 16px; padding: var(--space-lg); } }
.panel-close {
  position: absolute; top: var(--space-sm); right: var(--space-sm);
  width: var(--touch); height: var(--touch); border-radius: 50%; border: 1px solid var(--border);
  background: transparent; color: var(--fg); cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: background-color var(--dur-fast) var(--ease);
}
.panel-close:hover { background: var(--light-subtle); }
.panel-close svg { width: 16px; height: 16px; }
.transparency-list { padding-left: 1.2rem; }
.transparency-list li { margin-bottom: 0.5rem; }
.transparency-excluded { font-size: 0.9rem; color: var(--fg-muted); border-top: 1px solid var(--border); padding-top: var(--space-sm); }

/* Live event log — the recursive, self-referential layer */
.event-log { margin-top: var(--space-md); border-top: 1px solid var(--border); padding-top: var(--space-sm); }
.event-log-title { font-family: var(--font-mono); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--fg-faint); margin-bottom: 0.5rem; }
.event-log-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.3rem; max-height: 180px; overflow-y: auto; }
.event-log-item {
  display: flex; justify-content: space-between; gap: 0.5rem; font-family: var(--font-mono); font-size: 0.78rem;
  padding: 0.3rem 0.5rem; border-radius: 6px; background: var(--light-subtle);
  animation: slideIn 240ms var(--ease) both;
}
.event-log-name { color: var(--accent-quiet); }
.event-log-time { color: var(--fg-faint); flex-shrink: 0; }
.event-log-empty { color: var(--fg-faint); font-size: 0.85rem; font-style: italic; }
.session-chip {
  display: inline-flex; align-items: center; gap: 0.4rem; margin-top: var(--space-sm);
  font-family: var(--font-mono); font-size: 0.72rem; color: var(--fg-faint);
  border: 1px solid var(--border); border-radius: 999px; padding: 0.25rem 0.7rem;
}
.session-chip-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }

/* Survey */
.survey-question { margin-bottom: var(--space-md); }
.survey-question label { display: block; font-weight: 600; margin-bottom: 0.5rem; }
.survey-scale { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.survey-scale button {
  min-width: var(--touch); min-height: var(--touch); border-radius: 8px; border: 1px solid var(--border);
  background: transparent; color: var(--fg); cursor: pointer; font-family: var(--font-mono);
  transition: border-color var(--dur-fast) var(--ease), background-color var(--dur-fast) var(--ease);
}
.survey-scale button:hover, .survey-scale button[aria-pressed='true'] { border-color: var(--accent); background: color-mix(in oklch, var(--accent) 15%, transparent); }
.survey-textarea {
  width: 100%; min-height: 5rem; border-radius: var(--radius); border: 1px solid var(--border);
  background: var(--bg); color: var(--fg); font-family: var(--font-ui); padding: 0.6rem; resize: vertical;
}
.survey-thanks { text-align: center; padding: var(--space-md) 0; }

/* ---------- Footer ----------
   Copied verbatim from landing.css's footer block (landing.css:1805-1980)
   rather than importing landing.css wholesale, to avoid pulling in
   unrelated hero/marketing CSS. Keep in sync by hand if the source page's
   footer styling changes. */
.site-footer .container { container-type: inline-size; container-name: footer; }
.site-footer { padding-block: var(--space-lg); border-block-start: 1px solid var(--border); margin-top: var(--space-xl); }
.footer-content { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: var(--space-md); margin-block-end: var(--space-md); }
@container footer (max-width: 480px) {
  .footer-content { grid-template-columns: 1fr; justify-items: center; text-align: center; }
}
.footer-links { display: flex; flex-wrap: wrap; gap: var(--space-md); }
.footer-links a {
  color: var(--text-secondary); text-decoration: none; font-size: var(--font-sm);
  transition: color var(--duration-fast); min-block-size: var(--touch-target-min);
  display: inline-flex; align-items: center;
}
.footer-links a:hover { color: var(--primary); }
.theme-toggle {
  display: inline-flex; align-items: center; justify-content: center; position: relative;
  inline-size: var(--touch-target-comfortable); block-size: var(--touch-target-comfortable);
  padding: 0; border-radius: var(--radius-full); border: 1px solid var(--border);
  background: rgba(15, 23, 42, 0.35); color: var(--text-secondary); font-size: var(--font-sm); cursor: pointer;
  transition: color var(--duration-fast) ease, border-color var(--duration-fast) ease, background var(--duration-fast) ease;
}
html[data-theme="light"] .theme-toggle { background: rgba(255, 255, 255, 0.8); }
.theme-toggle:hover { color: var(--text-primary); border-color: rgba(16, 185, 129, 0.3); }
.theme-toggle-icon { display: inline-flex; position: relative; width: 18px; height: 18px; }
.theme-toggle-icon svg { position: absolute; inset: 0; width: 18px; height: 18px; transition: opacity 0.2s ease, transform 0.2s ease; }
.theme-toggle-icon .icon-sun { opacity: 0; transform: rotate(-90deg); }
html[data-theme="light"] .theme-toggle-icon .icon-sun { opacity: 1; transform: rotate(0deg); }
html[data-theme="light"] .theme-toggle-icon .icon-moon { opacity: 0; transform: rotate(90deg); }
.theme-toggle-label { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.footer-copy { color: var(--text-muted); font-size: var(--font-xs); text-align: center; }
.footer-tagline { color: var(--text-secondary); font-size: var(--font-sm); font-style: italic; margin-block-end: var(--space-xs); text-align: center; }
.footer-meta { display: flex; flex-direction: column; align-items: center; }

/* ---------- Slide transitions (paged mode) ---------- */
.js-paged .slide {
  display: none; min-height: calc(100dvh - var(--nav-shell-height));
  opacity: 0; transform: translateY(12px);
}
.js-paged .slide.is-active {
  display: flex; opacity: 1; transform: translateY(0);
  transition: opacity 420ms var(--ease), transform 420ms var(--ease);
}
.js-paged[data-slide='intro'] #intro,
.js-paged[data-slide='posthog'] #posthog,
.js-paged[data-slide='context'] #context,
.js-paged[data-slide='how'] #how,
.js-paged[data-slide='evidence'] #evidence,
.js-paged[data-slide='learning'] #learning,
.js-paged[data-slide='humans-agents'] #humans-agents,
.js-paged[data-slide='why-now'] #why-now,
.js-paged[data-slide='inspect'] #inspect {
  display: flex; opacity: 1; transform: translateY(0);
}
.js-paged .slide.is-leaving {
  display: flex; opacity: 0; transform: translateY(-12px);
  transition: opacity 220ms var(--ease), transform 220ms var(--ease);
}
.js-paged .deck { scroll-behavior: auto; }

/* ---------- Easter egg ---------- */
.egg-hedgehog {
  position: fixed; bottom: 10%; left: -60px; width: 42px; height: 30px; z-index: var(--z-tooltip, 70);
  pointer-events: none; color: var(--accent-text);
  animation: egg-scurry 3.2s ease-in-out forwards;
}
@keyframes egg-scurry {
  0%   { left: -60px; transform: scaleX(1); }
  48%  { left: calc(100% + 60px); transform: scaleX(1); }
  50%  { left: calc(100% + 60px); transform: scaleX(-1); }
  100% { left: -60px; transform: scaleX(-1); }
}
.egg-badge {
  position: fixed; bottom: var(--space-md); left: 50%; transform: translateX(-50%) translateY(8px);
  background: var(--bg-raised); border: 2px solid var(--accent); border-radius: 999px;
  padding: 0.5rem 1.1rem; font-family: var(--font-mono); font-size: 0.78rem;
  z-index: var(--z-tooltip, 70); opacity: 0; animation: egg-badge-in 400ms var(--ease) 2.6s forwards;
  box-shadow: var(--shadow-lg);
}
@keyframes egg-badge-in { to { opacity: 1; transform: translateX(-50%) translateY(0); } }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
  [data-animate-draw] [data-draw], [data-animate-draw] [data-pop], [data-animate-draw] .node-label {
    stroke-dasharray: none; stroke-dashoffset: 0; opacity: 1; transform: none; animation: none;
  }
  .slide-title-hero { animation: none; background-position: 50% 50%; }
  .js-paged .slide { transform: none; }
  .loop-ring { animation: none; }
  .egg-hedgehog { animation: none; left: 50%; transform: translateX(-50%); }
}
.reduced-motion * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
.reduced-motion [data-animate-draw] [data-draw], .reduced-motion [data-animate-draw] [data-pop],
.reduced-motion [data-animate-draw] .node-label {
  stroke-dasharray: none; stroke-dashoffset: 0; opacity: 1; transform: none;
}
.reduced-motion .slide-title-hero { animation: none; background-position: 50% 50%; }