/* ==================================================================
   VERA v3 — Warm folio × journal offprint
   Editorial paper, hairline keylines, plate figures, video-forward.
   Fraunces (display) · Newsreader (prose) · Inter (apparatus)
   ================================================================== */

:root {
  --paper:    #FAF8F3;   /* warm white canvas */
  --paper-2:  #F3EEE2;   /* whisper tint bands */
  --plate:    #FFFFFF;   /* figure / video plates */
  --well:     #0E0C09;   /* dark video wells */

  --ink:      #1D1A15;
  --ink-2:    #544C3F;
  --mute:     #6E6556;   /* AA on paper/plate/tint at small sizes */

  --hair:     #E7E1D2;   /* hairline rules */
  --hair-2:   #D5CCB9;   /* hover / strong hairlines */
  --ghost:    #E5DEC9;   /* recessive folio numerals (paper bands) */
  --ghost-tint: #DED5BB; /* same optical weight on tint bands */

  --accent:   #A15E22;   /* burnt caramel */
  --accent-2: #7C4517;   /* hover / pressed */
  --wash:     rgba(161,94,34,0.18);

  --ok:       #3E6B3A;
  --fail:     #9A3B33;

  --display: 'Fraunces', 'Iowan Old Style', Georgia, serif;
  --serif:   'Newsreader', 'Iowan Old Style', Georgia, serif;
  --sans:    'Inter', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
  --mono:    ui-monospace, 'SF Mono', Menlo, monospace;

  --r-sm: 4px;
  --r-md: 6px;
  --r-lg: 8px;

  --max: 1680px;
  --max-narrow: 880px;
  --nav-h: 56px;
}

/* ── Base ─────────────────────────────────────────────────────── */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { background: var(--paper); color: var(--ink); }
body {
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  margin: 0;
}
::selection { background: var(--wash); }

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-2); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }

img, video { max-width: 100%; display: block; }

/* apparatus small-caps utility (labels, tags, tabs, badges) */
.v2-eyebrow, .v2-tab, .v2-card-label, .v2-prompt-tag, .v2-badge,
.v2-nav-links a, .v2-compare-vs, .v2-hero-eyebrow {
  font-family: var(--sans);
  text-transform: uppercase;
  letter-spacing: 0.13em;
}

/* section anchors clear the sticky nav */
section[id], span[id] { scroll-margin-top: calc(var(--nav-h) + 16px); }

/* ── Nav ──────────────────────────────────────────────────────── */
.v2-nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(250,248,243,0.86);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--hair);
}
.v2-nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  height: var(--nav-h);
  padding: 0 24px;
  display: flex; align-items: center; gap: 28px;
}
.v2-nav-brand {
  font-family: var(--display);
  font-weight: 560;
  font-size: 1.02rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink);
}
.v2-nav-brand:hover { color: var(--ink); text-decoration: none; }
.v2-nav-links { margin-left: auto; display: flex; gap: 24px; }
.v2-nav-links a {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--ink-2);
  padding: 4px 0;
  border-bottom: 1px solid transparent;
  transition: color 160ms ease, border-color 160ms ease;
}
.v2-nav-links a:hover { color: var(--ink); text-decoration: none; }
.v2-nav-links a.is-current { color: var(--ink); border-bottom-color: var(--accent); }
.v2-nav-progress {
  position: absolute; left: 0; bottom: -1px;
  height: 2px; width: 0;
  background: var(--accent);
  opacity: 0.85;
}

/* ── Hero masthead ────────────────────────────────────────────── */
.v2-hero { padding: 84px 24px 48px; }
.v2-hero-inner { max-width: var(--max); margin: 0 auto; text-align: center; }
.v2-hero-eyebrow {
  display: inline-flex; align-items: center; gap: 18px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--mute);
  margin-bottom: 26px;
}
.v2-hero-eyebrow::before, .v2-hero-eyebrow::after {
  content: '';
  width: 32px; height: 1px;
  background: var(--hair-2);
}
.v2-hero-title {
  font-family: var(--display);
  font-weight: 420;
  font-size: clamp(2.3rem, 4.4vw, 3.8rem);
  line-height: 1.06;
  letter-spacing: -0.016em;
  margin: 0 auto 26px;
  max-width: 24ch;
  text-wrap: balance;
  color: var(--ink);
}
.v2-hero-anon {
  font-size: 1rem;
  color: var(--ink-2);
  margin: 0 auto 26px;
  font-style: italic;
  letter-spacing: 0.01em;
}
.v2-hero-authors {
  font-size: 0.98rem;
  color: var(--ink-2);
  max-width: 74ch;
  margin: 0 auto 8px;
  display: flex; flex-wrap: wrap; justify-content: center; gap: 4px 18px;
}
.v2-hero-authors.is-lead { font-size: 1.06rem; margin-bottom: 6px; }
.v2-hero-authors a {
  color: var(--ink-2);
  text-decoration: underline;
  text-decoration-color: var(--hair-2);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
  transition: color 160ms ease, text-decoration-color 160ms ease;
}
.v2-hero-authors a:hover { color: var(--accent); text-decoration-color: var(--accent); }
.v2-hero-authors sup { color: var(--mute); font-size: 0.68em; }
.v2-hero-affil {
  font-size: 0.86rem;
  color: var(--mute);
  margin: 8px auto 36px;
  display: flex; flex-wrap: wrap; justify-content: center; gap: 4px 18px;
}
.v2-hero-affil sup { font-size: 0.78em; }

/* Lite mode (anonymous deploy): hide identity-leaking buttons */
.vjam-lite [data-hide-in-lite] { display: none !important; }

.v2-hero-cta { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }
.v2-btn {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 11px 22px;
  border-radius: var(--r-md);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  border: 1px solid var(--ink);
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease;
}
.v2-btn:hover { background: var(--accent-2); border-color: var(--accent-2); color: var(--paper); text-decoration: none; }
.v2-btn svg { width: 15px; height: 15px; fill: currentColor; }
.v2-btn.is-ghost { background: transparent; color: var(--ink-2); border-color: var(--hair-2); }
.v2-btn.is-ghost:hover { background: var(--plate); color: var(--ink); border-color: var(--ink-2); }

/* ── Hero reel (overview video, dark band) ────────────────────── */
.v2-strip {
  background: var(--well);
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
  padding: 32px 24px;
}
.v2-reel {
  position: relative;
  max-width: 940px;
  margin: 0 auto;
}
.v2-reel video {
  width: 100%;
  border-radius: var(--r-lg);
  border: 1px solid rgba(250,248,243,0.12);
}
.v2-reel:hover .v2-fs-btn { opacity: 1; }

/* footnote tip (replaces the old gradient explainer bar) */
.v2-footnote {
  max-width: var(--max);
  margin: 0 auto;
  padding: 16px 24px;
  text-align: center;
  font-size: 0.9rem;
  color: var(--mute);
}
.v2-footnote .dagger { color: var(--accent); margin-right: 6px; }
.v2-footnote kbd {
  font-family: var(--mono);
  font-size: 0.82em;
  background: var(--plate);
  border: 1px solid var(--hair);
  border-radius: var(--r-sm);
  padding: 2px 7px;
  color: var(--ink-2);
}
.v2-footnote .fs-icon {
  display: inline-block;
  width: 16px; height: 16px;
  vertical-align: -3px;
  padding: 2px;
  background: var(--plate);
  border: 1px solid var(--hair);
  border-radius: var(--r-sm);
  fill: var(--accent);
  box-sizing: content-box;
}

/* ── Section frame: hairline top rule + numbered rail ─────────── */
.v2-section { padding: 76px 24px 28px; }
.v2-section.is-tint { background: var(--paper-2); padding-bottom: 64px; }
.v2-section.is-tint .v2-section-inner > :last-child,
.v2-section.is-tint .v2-panel > :last-child { margin-bottom: 0; }
.v2-section-inner { max-width: var(--max); margin: 0 auto; }
.v2-section-head {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 18px 40px;
  border-top: 1px solid var(--hair-2);
  padding-top: 26px;
  margin-bottom: 40px;
}
.v2-eyebrow {
  font-size: 0.72rem;
  font-weight: 600;
  line-height: 1.9;
  color: var(--mute);
}
.v2-eyebrow b {
  display: block;
  font-family: var(--display);
  font-weight: 340;
  font-size: 2.6rem;
  line-height: 1;
  letter-spacing: 0;
  color: var(--ghost);
  margin-bottom: 10px;
}
.v2-section.is-tint .v2-eyebrow b { color: var(--ghost-tint); }
.v2-title {
  font-family: var(--display);
  font-weight: 430;
  font-size: clamp(1.75rem, 2.8vw, 2.5rem);
  line-height: 1.14;
  letter-spacing: -0.012em;
  margin: -6px 0 14px;
  text-wrap: balance;
  color: var(--ink);
}
.v2-caption, .v2-intro {
  font-size: 1.09rem;
  color: var(--ink-2);
  max-width: 66ch;
  line-height: 1.65;
  margin: 0;
}
.v2-intro { margin-top: 12px; }
.v2-caption strong, .v2-intro strong, .v2-outcome strong { color: var(--ink); font-weight: 600; }
.v2-caption em, .v2-intro em { color: var(--ink); font-style: italic; }

/* ── Prompt tag ───────────────────────────────────────────────── */
.v2-prompt {
  display: inline-flex; align-items: baseline; gap: 14px;
  background: var(--plate);
  border: 1px solid var(--hair);
  border-radius: var(--r-md);
  padding: 10px 16px;
  margin: 0 0 22px;
  max-width: 100%;
}
.v2-prompt-tag {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--accent);
}
.v2-prompt-text { font-family: var(--serif); font-size: 1.08rem; font-style: italic; color: var(--ink); }

/* ── Video grid + plates ──────────────────────────────────────── */
.v2-grid { display: grid; gap: 16px; margin-bottom: 20px; }
.v2-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.v2-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.v2-grid.cols-1 { grid-template-columns: 1fr; }

.v2-card {
  position: relative;
  background: var(--plate);
  border: 1px solid var(--hair);
  border-radius: var(--r-md);
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(29,26,21,0.05);
  transition: border-color 200ms ease;
}
.v2-card:hover { border-color: var(--hair-2); }
.v2-card video, .v2-card img { width: 100%; height: auto; display: block; background: var(--well); }

/* lazy videos fade in once a frame is ready (kills the black flash) */
.v2-card video, .v2-strip video { opacity: 0; transition: opacity 350ms ease; }
.v2-card video.is-live, .v2-strip video.is-live { opacity: 1; }

.v2-card-label {
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--mute);
  padding: 9px 12px;
  border-top: 1px solid var(--hair);
  text-align: left;
}
.v2-card-label b {
  font-weight: 700;
  font-style: normal;
  color: var(--accent);
  margin-right: 8px;
}
/* keep low-res sources near native size instead of mushy upscales */
#allegro-sim .v2-grid.cols-2 { max-width: 900px; margin-inline: auto; }
#control .v2-grid.cols-1 { max-width: 1100px; margin-inline: auto; }

/* fullscreen button */
.v2-fs-btn {
  position: absolute;
  bottom: 8px; right: 8px;
  width: 30px; height: 30px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--r-sm);
  background: rgba(14,12,9,0.6);
  color: var(--paper);
  border: none;
  cursor: pointer;
  opacity: 0;
  transition: opacity 140ms ease, background 140ms ease;
  z-index: 2;
}
.v2-card:hover .v2-fs-btn, .v2-fs-btn:focus-visible { opacity: 1; }
.v2-fs-btn:hover { background: rgba(14,12,9,0.88); }
.v2-fs-btn svg { width: 16px; height: 16px; fill: currentColor; }
@media (hover: none) { .v2-fs-btn { opacity: 0.85; } }

/* ── Tabs: hairline row + animated ink underline ──────────────── */
.v2-tabs {
  display: flex; gap: 26px;
  border-bottom: 1px solid var(--hair);
  margin: 0 0 26px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
@media (max-width: 1100px) {
  /* scroll-hint fade only where tabs can actually overflow */
  .v2-tabs {
    mask-image: linear-gradient(90deg, #000 94%, transparent);
    -webkit-mask-image: linear-gradient(90deg, #000 94%, transparent);
  }
}
.v2-tabs::-webkit-scrollbar { display: none; }
.v2-tab {
  position: relative;
  background: none;
  border: 0;
  padding: 11px 2px 13px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--mute);
  white-space: nowrap;
  cursor: pointer;
  transition: color 180ms ease;
}
.v2-tab::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 260ms cubic-bezier(0.4, 0, 0.2, 1);
}
.v2-tab:hover { color: var(--ink); }
.v2-tab.is-active { color: var(--ink); }
.v2-tab.is-active::after { transform: scaleX(1); }
.v2-tab:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.v2-panel { display: none; }
.v2-panel.is-active { display: block; }

/* narrow modifier: centered, breathable galleries */
.v2-figure.is-narrow,
.v2-panel.is-narrow.is-active {
  max-width: 82%;
  margin-left: auto;
  margin-right: auto;
}

/* ── Comparison (VERA vs DreamZero) ───────────────────────────── */
.v2-compare { display: flex; flex-direction: column; gap: 28px; align-items: stretch; }
.v2-compare-vs {
  display: flex; align-items: center; justify-content: center;
  gap: 16px;
  margin: 2px 0;
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--mute);
}
.v2-compare-vs::before, .v2-compare-vs::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--hair);
  max-width: 220px;
}
.v2-compare-prompt { margin: 0 auto 24px; text-align: center; }
.v2-compare-card {
  background: var(--plate);
  border: 1px solid var(--hair);
  border-top: 3px solid var(--hair-2);
  border-radius: var(--r-lg);
  padding: 28px;
}
.v2-compare-card.is-ours { border-top-color: var(--accent); }
.v2-compare-head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--hair);
  padding-bottom: 14px;
  margin-bottom: 20px;
}
.v2-compare-title {
  font-family: var(--display);
  font-weight: 480;
  font-size: 1.3rem;
  margin: 0;
  color: var(--ink);
}
.v2-compare-title span { font-family: var(--serif); color: var(--mute); font-size: 0.82em; font-style: italic; font-weight: 400; }
.v2-badge {
  font-size: 0.68rem;
  font-weight: 600;
  padding: 0;
  background: none;
  white-space: nowrap;
}
.v2-badge.ok   { color: var(--ok); }
.v2-badge.fail { color: var(--fail); }
.v2-outcome {
  margin: 18px 0 0;
  font-size: 1.02rem;
  line-height: 1.65;
  color: var(--ink-2);
  max-width: 74ch;
}

/* ── Figures as plates, captions as Fig-lockups ───────────────── */
.v2-figure {
  margin: 0;
  background: var(--plate);
  border: 1px solid var(--hair);
  border-radius: var(--r-md);
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(29,26,21,0.05);
}
.v2-figure img {
  width: 100%; height: auto; display: block;
  background: var(--plate);
  padding: 26px;
  box-sizing: border-box;
}
.v2-figure.is-flush img { padding: 0; }
.v2-figure.is-half { max-width: 720px; margin: 0 auto 32px; }
.v2-figure-caption {
  font-family: var(--sans);
  font-size: 0.88rem;
  font-style: normal;
  color: var(--mute);
  line-height: 1.6;
  text-align: left;
  padding: 14px 26px 18px;
  border-top: 1px solid var(--hair);
}
.v2-figure-caption.is-block {
  font-size: 0.92rem;
  color: var(--ink-2);
  padding: 16px 26px 22px;
  max-width: none;
  margin: 0;
}
.v2-figure-caption .fig-no {
  font-weight: 700;
  color: var(--ink);
}
.v2-figure-caption .fig-no::after {
  content: '|';
  color: var(--accent);
  font-weight: 400;
  margin: 0 0.55em;
}
.v2-figure-caption strong { color: var(--ink); font-weight: 600; }
.v2-figure-caption .fig-mark { color: var(--accent); font-weight: 700; margin: 0 4px 0 6px; }

/* ── Footer colophon ──────────────────────────────────────────── */
.v2-footer {
  margin-top: 88px;
  padding: 0 24px 56px;
  text-align: center;
  color: var(--mute);
  font-size: 0.86rem;
}
.v2-footer-rule {
  max-width: var(--max);
  margin: 0 auto 48px;
  border-top: 1px solid var(--hair-2);
}
.v2-footer-rule::after {
  content: '';
  display: block;
  border-top: 3px solid var(--ink);
  margin-top: 3px;
}
.v2-footer .colophon {
  font-family: var(--sans);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 1080px) {
  .v2-section-head { grid-template-columns: 1fr; gap: 8px; }
  .v2-eyebrow b { display: inline; font-size: 1em; font-family: var(--sans); font-weight: 700; color: var(--accent); margin-right: 10px; }
}
@media (max-width: 900px) {
  .v2-grid.cols-3, .v2-grid.cols-2 { grid-template-columns: 1fr; }
  .v2-section { padding: 56px 18px 18px; }
  .v2-section.is-tint { padding-bottom: 44px; }
  .v2-hero { padding: 56px 18px 36px; }
  .v2-panel.is-narrow.is-active, .v2-figure.is-narrow { max-width: 100%; }
  .v2-figure.is-half { max-width: 100%; }
  .v2-nav-links { gap: 16px; }
  .v2-nav-links a { font-size: 0.66rem; }
  .v2-compare-card { padding: 20px; }
  .v2-figure img { padding: 14px; }
}
@media (max-width: 640px) {
  .v2-nav-links { display: none; }
}

/* ── Motion & print ───────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 1ms !important; }
  .v2-card video, .v2-strip video { opacity: 1; }
}
@media print {
  .v2-nav, .v2-fs-btn, .v2-footnote, .v2-strip, video,
  .v2-grid, .v2-tabs, .v2-compare { display: none !important; }
  :root { --paper: #fff; --paper-2: #fff; }
  .v2-section { padding: 32px 0 8px; }
}