/* ================================================================
   East Amherst Roofing — Design B (bazalgette-drainage)
   Slot: b  |  All selectors: [data-design="b"].dq-design
   ZERO [data-design="b"].dq-design selectors in this file.
   Motion gate: animate ONLY transform / opacity / clip-path.
   hover/focus transforms wrapped in @media (hover:hover) and (pointer:fine).
   ================================================================ */

/* ── Token system ─────────────────────────────────────────────── */
[data-design="b"] {
  --bz-b-vellum:  #f3ead4;
  --bz-b-brick:   #c4a062;
  --bz-b-iron:    #1c2528;
  --bz-b-indigo:  #1d2848;
  --bz-b-glaze:   #245c5e;
  --bz-b-brass:   #8b6a2f;
  --bz-b-rule:    #c8b88a;
  --bz-b-muted:   #6b6557;
  --bz-b-critical:#a82e1e;
  --bz-b-success: #4a6b3a;

  /* design-b primary alias (per slot-scope contract) */
  --design-b-primary: var(--bz-b-indigo);

  /* motion tokens */
  --bz-ease-engine:  cubic-bezier(0.4, 0, 0.2, 1);
  --bz-ease-inscribe:cubic-bezier(0.65, 0, 0.35, 1);
  --bz-ease-settle:  cubic-bezier(0.16, 1, 0.3, 1);
  --bz-pulse:        4600ms;
  --bz-inscribe:     1400ms;
  --bz-settle:       280ms;
  --bz-fast:         140ms;

  /* radius */
  --bz-radius-0:         0px;
  --bz-radius-1:         2px;
  --bz-radius-cartouche: 4px;

  /* spacing (6px base) */
  --bz-course: 6px;
  --bz-row:    12px;
  --bz-band:   24px;
  --bz-bay:    48px;
  --bz-vault:  96px;
  --bz-nave:   144px;

  /* layout */
  color: var(--bz-b-iron);
  background: var(--bz-b-vellum);
  font-family: 'Source Serif Pro', 'Charter', Georgia, serif;
  font-size: 17px;
  line-height: 1.55;
}

/* ── Global article scope guards ─────────────────────────────── */
[data-design="b"].dq-design,
[data-design="b"] .dq-design {
  max-width: 100%;
  overflow-x: clip;
}
[data-design="b"].dq-design * { min-width: 0; }
[data-design="b"].dq-design img,
[data-design="b"].dq-design svg:not([data-keep-size]) {
  max-width: 100%;
  height: auto;
}

/* ================================================================
   E1 — HEADER
   ================================================================ */
[data-design="b"] .bz-header {
  position: sticky; top: 0; z-index: 40;
  background: var(--bz-b-vellum);
  border-bottom: 1px solid var(--bz-b-rule);
  overflow: hidden;
  isolation: isolate;
}
[data-design="b"] .bz-header__sweep {
  position: absolute; inset: 0;
  background: linear-gradient(90deg,
    transparent 0%,
    color-mix(in oklab, var(--bz-b-brass), transparent 88%) 40%,
    color-mix(in oklab, var(--bz-b-brass), transparent 60%) 50%,
    color-mix(in oklab, var(--bz-b-brass), transparent 88%) 60%,
    transparent 100%);
  background-size: 220% 100%;
  animation: bz-header-sweep 26s linear infinite;
  pointer-events: none; z-index: 0;
}
[data-design="b"] .bz-header__crosshatch {
  position: absolute; inset: 0;
  background-image:
    repeating-linear-gradient(45deg,
      color-mix(in oklab, var(--bz-b-rule), transparent 75%) 0 1px,
      transparent 1px 11px),
    repeating-linear-gradient(-45deg,
      color-mix(in oklab, var(--bz-b-rule), transparent 80%) 0 1px,
      transparent 1px 14px);
  opacity: 0.4;
  animation: bz-header-breathe 19s ease-in-out infinite;
  pointer-events: none; z-index: 0;
}
[data-design="b"] .bz-header__bar {
  position: relative; z-index: 1;
  display: flex; align-items: center; justify-content: space-between;
  max-width: 1280px; margin: 0 auto;
  padding: clamp(12px, 2vw, 22px) clamp(16px, 4vw, 48px);
  gap: 16px;
}
[data-design="b"] .bz-logo { text-decoration: none; color: var(--bz-b-iron); }
[data-design="b"] .bz-logo__mark {
  font-family: 'Cormorant SC', 'Trajan Pro', Georgia, serif;
  font-weight: 600;
  letter-spacing: 0.16em;
  font-size: clamp(16px, 2vw, 24px);
  text-transform: uppercase;
}
[data-design="b"] .bz-hamburger {
  background: transparent; border: 1px solid var(--bz-b-rule);
  width: 44px; height: 44px;
  display: inline-flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 5px;
  cursor: pointer;
  border-radius: var(--bz-radius-1, 2px);
  /* motion-gate compliant: only border-color transition (not a layout prop) */
  transition: border-color var(--bz-fast) var(--bz-ease-settle);
  flex-shrink: 0;
}
@media (hover: hover) and (pointer: fine) {
  [data-design="b"] .bz-hamburger:hover {
    border-color: var(--bz-b-brass);
  }
}
[data-design="b"] .bz-hamburger:focus-visible {
  border-color: var(--bz-b-brass); outline: none;
}
[data-design="b"] .bz-hamburger__rule {
  display: block; width: 20px; height: 1px; background: var(--bz-b-iron);
}
/* Drawer — collapsed = display:none via [hidden] */
[data-design="b"] .bz-drawer[hidden] { display: none; }
[data-design="b"] .bz-drawer {
  position: fixed; inset: 0; z-index: 60;
  background: color-mix(in oklab, var(--bz-b-iron), transparent 30%);
  display: flex; justify-content: flex-end;
}
[data-design="b"] .bz-drawer__plate {
  background: var(--bz-b-vellum);
  width: min(420px, 88vw); height: 100%;
  padding: clamp(32px, 5vw, 56px) clamp(24px, 4vw, 40px);
  border-left: 1px solid var(--bz-b-rule);
  display: flex; flex-direction: column; gap: 24px;
  overflow-y: auto;
  animation: bz-drawer-tip-in 320ms var(--bz-ease-settle) forwards;
}
[data-design="b"] .bz-drawer__eyebrow {
  font-family: 'Cormorant SC', Georgia, serif;
  text-transform: uppercase; letter-spacing: 0.18em;
  font-size: 13px; color: var(--bz-b-muted);
}
[data-design="b"] .bz-drawer__nav { display: flex; flex-direction: column; gap: 12px; }
[data-design="b"] .bz-drawer__link {
  font-family: 'Cormorant SC', Georgia, serif;
  font-size: clamp(22px, 4vw, 30px); letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--bz-b-iron); text-decoration: none;
  display: flex; align-items: baseline; gap: 14px;
  padding-bottom: 8px; border-bottom: 1px solid var(--bz-b-rule);
}
@media (hover: hover) and (pointer: fine) {
  [data-design="b"] .bz-drawer__link:hover {
    color: var(--bz-b-indigo); border-bottom-color: var(--bz-b-brass);
  }
}
[data-design="b"] .bz-drawer__num {
  font-family: ui-monospace, monospace; font-size: 13px; color: var(--bz-b-brass); min-width: 28px;
}
[data-design="b"] .bz-drawer__ctas {
  display: flex; flex-direction: column; gap: 14px; margin-top: 8px;
}
[data-design="b"] .bz-drawer__funnel-cta {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 22px;
  background: var(--bz-b-indigo); color: var(--bz-b-vellum);
  font-family: 'Cormorant SC', Georgia, serif; font-size: 14px;
  letter-spacing: 0.16em; text-transform: uppercase; text-decoration: none;
  border-radius: var(--bz-radius-cartouche);
  min-height: 44px;
}
[data-design="b"] .bz-drawer__phone {
  font-family: ui-monospace, monospace; font-size: 16px;
  color: var(--bz-b-iron); text-decoration: none;
  display: block; min-height: 44px; display: flex; align-items: center;
}
[data-design="b"] .bz-drawer__close {
  margin-top: auto; align-self: flex-start;
  background: transparent; border: 1px solid var(--bz-b-rule);
  padding: 10px 18px; cursor: pointer;
  font-family: 'Cormorant SC', Georgia, serif; letter-spacing: 0.14em;
  text-transform: uppercase; font-size: 13px; color: var(--bz-b-iron);
  min-height: 44px;
}

/* ================================================================
   E2/E3 — HERO
   isolation: isolate so no backdrop can paint over text (HERO Z-INDEX guard)
   ================================================================ */
[data-design="b"] .bz-hero {
  position: relative;
  isolation: isolate;
  min-height: clamp(520px, 72vh, 760px);
  display: flex; align-items: center;
  background: var(--bz-b-iron);
  overflow: hidden;
}
/* Backdrop — sits below text layer */
[data-design="b"] .bz-hero__backdrop {
  position: absolute; inset: 0; z-index: 0;
  overflow: hidden;
}
[data-design="b"] .bz-hero__roof-svg {
  width: 100%; height: 100%;
  display: block;
}
/* Standing-seam light sweep — sustained ambient (HERO-1 one layer, keeps breathing) */
[data-design="b"] .bz-hero__sweep {
  animation: bz-hero-sweep 8s var(--bz-ease-engine) infinite;
}
/* Roof ribs — draw-in on arrival, then hold */
[data-design="b"] .bz-rib {
  stroke-dasharray: 800;
  stroke-dashoffset: 800;
  animation: bz-rib-arrive 1.8s var(--bz-ease-inscribe) forwards;
}
[data-design="b"] .bz-rib--2  { animation-delay: 0.08s; }
[data-design="b"] .bz-rib--3  { animation-delay: 0.16s; }
[data-design="b"] .bz-rib--4  { animation-delay: 0.24s; }
[data-design="b"] .bz-rib--5  { animation-delay: 0.32s; }
[data-design="b"] .bz-rib--6  { animation-delay: 0.40s; }
[data-design="b"] .bz-rib--7  { animation-delay: 0.48s; }
[data-design="b"] .bz-rib--8  { animation-delay: 0.10s; }
[data-design="b"] .bz-rib--9  { animation-delay: 0.18s; }
[data-design="b"] .bz-rib--10 { animation-delay: 0.26s; }
[data-design="b"] .bz-rib--11 { animation-delay: 0.34s; }
[data-design="b"] .bz-rib--12 { animation-delay: 0.42s; }
[data-design="b"] .bz-rib--13 { animation-delay: 0.50s; }
[data-design="b"] .bz-rib--14 { animation-delay: 0.58s; }
/* Hatch overlay breath */
[data-design="b"] .bz-hero__hatch-overlay {
  position: absolute; inset: 0;
  background-image:
    repeating-linear-gradient(45deg,
      color-mix(in oklab, var(--bz-b-rule), transparent 82%) 0 1px,
      transparent 1px 12px),
    repeating-linear-gradient(-45deg,
      color-mix(in oklab, var(--bz-b-rule), transparent 86%) 0 1px,
      transparent 1px 16px);
  animation: bz-hero-hatch 14s ease-in-out infinite;
  pointer-events: none;
}
/* Text content — z-index above backdrop */
[data-design="b"] .bz-hero__content {
  position: relative; z-index: 10;
  width: 100%;
  max-width: 1280px; margin: 0 auto;
  padding: clamp(64px, 10vw, 120px) clamp(20px, 5vw, 56px);
}
[data-design="b"] .bz-hero__inner {
  max-width: 720px;
  display: flex; flex-direction: column; gap: clamp(16px, 2.5vw, 24px);
}
[data-design="b"] .bz-hero__eyebrow {
  font-family: 'Cormorant SC', Georgia, serif;
  font-size: 13px; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--bz-b-brass);
  opacity: 1; /* HARD: never opacity:0 on hero text */
}
[data-design="b"] .bz-hero__headline {
  font-family: 'Cormorant SC', 'Trajan Pro', Georgia, serif;
  font-size: clamp(34px, 5.5vw, 72px);
  line-height: 1.05; letter-spacing: 0.03em;
  color: var(--bz-b-vellum);
  margin: 0;
  opacity: 1; /* HARD: opacity:1 at first paint */
}
[data-design="b"] .bz-hero__subtitle {
  font-family: 'Source Serif Pro', Georgia, serif;
  font-size: clamp(16px, 2vw, 20px); line-height: 1.5;
  color: color-mix(in oklab, var(--bz-b-vellum), transparent 22%);
  margin: 0;
  opacity: 1;
}
[data-design="b"] .bz-hero__proof {
  font-family: ui-monospace, monospace;
  font-size: 13px; letter-spacing: 0.06em;
  color: var(--bz-b-brass);
  margin: 0;
  opacity: 1;
}
[data-design="b"] .bz-hero__cta-group {
  display: flex; flex-wrap: wrap; align-items: center;
  gap: 16px; margin-top: 8px;
  opacity: 1; /* HARD: entire CTA group opacity:1 */
}
[data-design="b"] .bz-hero__phone-contact {
  font-family: ui-monospace, monospace; font-size: 15px;
  color: color-mix(in oklab, var(--bz-b-vellum), transparent 18%);
  text-decoration: none;
  letter-spacing: 0.06em;
  min-height: 44px; display: inline-flex; align-items: center;
  opacity: 1;
}
@media (hover: hover) and (pointer: fine) {
  [data-design="b"] .bz-hero__phone-contact:hover {
    color: var(--bz-b-brass);
  }
}

/* ================================================================
   E2 — CTA (brass cartouche, Pulse + magnetic-hover + ink-spread)
   ================================================================ */
[data-design="b"] .bz-cta {
  position: relative; isolation: isolate;
  display: inline-flex; align-items: center; gap: 14px;
  padding: 16px 28px; border-radius: var(--bz-radius-cartouche, 4px);
  background: var(--bz-b-indigo); color: var(--bz-b-vellum);
  font-family: 'Cormorant SC', 'Trajan Pro', Georgia, serif;
  font-size: 15px; letter-spacing: 0.18em; text-transform: uppercase;
  text-decoration: none; cursor: pointer;
  overflow: hidden;
  /* motion-gate: transform + background only */
  transition:
    transform 220ms var(--bz-ease-settle),
    background 200ms ease;
  will-change: transform;
  min-height: 44px;
}
[data-design="b"] .bz-cta__inset {
  position: absolute; inset: 4px; pointer-events: none;
  border: 1px solid var(--bz-b-brass);
  border-radius: 2px;
  animation: bz-cta-pulse var(--bz-pulse) var(--bz-ease-engine) infinite;
}
[data-design="b"] .bz-cta__label { opacity: 1; }
[data-design="b"] .bz-cta__arrow {
  display: inline-flex;
  /* motion-gate: transform only */
  transition: transform 220ms var(--bz-ease-settle);
}
[data-design="b"] .bz-cta:focus-visible .bz-cta__arrow {
  transform: translateX(4px);
}
@media (hover: hover) and (pointer: fine) {
  [data-design="b"] .bz-cta:hover .bz-cta__arrow {
    transform: translateX(4px);
  }
  [data-design="b"] .bz-cta:hover .bz-cta__inset,
  [data-design="b"] .bz-cta:focus-visible .bz-cta__inset {
    border-color: color-mix(in oklab, var(--bz-b-brass), white 25%);
    animation-duration: 2400ms;
  }
}
[data-design="b"] .bz-cta:focus-visible {
  outline: 2px solid var(--bz-b-brass); outline-offset: 4px;
}
[data-design="b"] .bz-cta:active { transform: translateY(2px) scale(0.99); }
[data-design="b"] .bz-cta__ink {
  position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(circle at var(--ink-x, 50%) var(--ink-y, 50%),
    color-mix(in oklab, var(--bz-b-vellum), transparent 70%) 0%, transparent 60%);
  opacity: 0;
}
[data-design="b"] .bz-cta.bz-stamping .bz-cta__ink {
  animation: bz-cta-ink 480ms var(--bz-ease-settle) 1;
}
/* Small CTA variant (footer) */
[data-design="b"] .bz-cta--sm {
  padding: 12px 20px; font-size: 13px;
}

/* ================================================================
   E6 — POINTER (copper-fill hydraulic drop)
   Immediately before #assessment — ≤1 sibling gap
   opacity:1 at rest, height > 8px
   ================================================================ */
[data-design="b"] .bz-pointer {
  display: flex;
  justify-content: center;
  padding: clamp(40px, 8vw, 80px) 16px clamp(56px, 10vw, 96px);
  color: var(--bz-b-brass);
  opacity: 1; /* wrapper must be opacity:1 per gate */
}
[data-design="b"] .bz-pointer__hit {
  position: relative;
  display: inline-block;
  width: 2px;
  height: 96px; /* ≥8px guaranteed */
  text-decoration: none;
}
[data-design="b"] .bz-pointer__pipe {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 0%, currentColor 100%);
  transform-origin: top center;
  /* motion-gate: transform + opacity — OK */
  animation: bz-pointer-fill 5s ease-in-out infinite;
  opacity: 0.7;
}
[data-design="b"] .bz-pointer__drop {
  position: absolute;
  left: 50%; bottom: -4px;
  width: 8px; height: 8px; margin-left: -4px;
  background: currentColor;
  border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
  /* start at scale(0.4) not scale(0) — gate rule: no scale(0) from nothing */
  transform: translateY(-72px) scale(0.4);
  opacity: 0;
  /* motion-gate: transform + opacity — OK */
  animation: bz-pointer-drip 5s ease-in infinite;
}

/* ================================================================
   E5 — FUNNEL (Job Ticket — 5 steps for roofing)
   ================================================================ */
[data-design="b"] .bz-ticket {
  max-width: 900px; margin: 0 auto;
  padding: clamp(48px, 7vw, 96px) clamp(16px, 4vw, 48px);
  display: flex; flex-direction: column; gap: 28px;
}
[data-design="b"] .bz-ticket__head { display: flex; flex-direction: column; gap: 10px; }
[data-design="b"] .bz-ticket__eyebrow {
  font-family: 'Cormorant SC', Georgia, serif; text-transform: uppercase;
  letter-spacing: 0.18em; font-size: 13px; color: var(--bz-b-brass);
}
[data-design="b"] .bz-ticket__title {
  font-family: 'Cormorant SC', 'Trajan Pro', Georgia, serif;
  font-size: clamp(26px, 3.4vw, 42px); letter-spacing: 0.04em;
  color: var(--bz-b-iron); margin: 0;
}
[data-design="b"] .bz-ticket__lede {
  font-family: 'Source Serif Pro', Georgia, serif; font-size: 17px;
  line-height: 1.55; color: var(--bz-b-iron); margin: 0;
}
[data-design="b"] .bz-ticket__progress {
  list-style: none; display: flex; gap: 10px; padding: 0; margin: 0;
  border-bottom: 1px solid var(--bz-b-rule); padding-bottom: 14px;
  flex-wrap: wrap;
}
[data-design="b"] .bz-ticket__pip {
  display: inline-flex; align-items: center; justify-content: center;
  font-family: ui-monospace, monospace; font-size: 12px;
  width: 32px; height: 32px;
  border: 1px solid var(--bz-b-rule); border-radius: 2px;
  color: var(--bz-b-muted); background: var(--bz-b-vellum);
  /* motion-gate: no layout props */
  transition: border-color 200ms ease, color 200ms ease, background 200ms ease, opacity 200ms ease;
}
[data-design="b"] .bz-ticket__pip.is-active {
  border-color: var(--bz-b-brass); color: var(--bz-b-iron);
}
[data-design="b"] .bz-ticket__pip.is-done {
  background: var(--bz-b-indigo); color: var(--bz-b-vellum); border-color: var(--bz-b-indigo);
}
[data-design="b"] .bz-ticket__form {
  border: 1px solid var(--bz-b-rule);
  padding: clamp(20px, 3vw, 40px); background: var(--bz-b-vellum);
}
[data-design="b"] .bz-folio { border: 0; padding: 0; margin: 0; }
[data-design="b"] .bz-folio[hidden] { display: none; }
[data-design="b"] .bz-folio.is-active {
  animation: bz-folio-in 320ms var(--bz-ease-settle) forwards;
}
[data-design="b"] .bz-folio__legend {
  font-family: 'Cormorant SC', Georgia, serif; text-transform: uppercase;
  letter-spacing: 0.16em; font-size: 17px; color: var(--bz-b-iron);
  margin-bottom: 18px; padding: 0; display: block;
}
[data-design="b"] .bz-folio__choices {
  display: grid; gap: 10px;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}
[data-design="b"] .bz-choice {
  display: flex; align-items: center; gap: 12px;
  border: 1px solid var(--bz-b-rule); padding: 14px 16px;
  cursor: pointer; background: var(--bz-b-vellum);
  font-family: 'Source Serif Pro', Georgia, serif; font-size: 16px;
  color: var(--bz-b-iron);
  /* motion-gate: border-color + background only (no transform here) */
  transition: border-color 80ms ease, background 80ms ease;
  min-height: 44px;
}
[data-design="b"] .bz-choice input { accent-color: var(--bz-b-indigo); }
@media (hover: hover) and (pointer: fine) {
  [data-design="b"] .bz-choice:hover {
    border-color: var(--bz-b-brass);
  }
}
[data-design="b"] .bz-choice:has(input:checked) {
  border-color: var(--bz-b-indigo);
  background: color-mix(in oklab, var(--bz-b-indigo), var(--bz-b-vellum) 92%);
}
[data-design="b"] .bz-folio__note {
  font-size: 15px; color: var(--bz-b-iron); margin: 16px 0 0;
  padding: 12px 16px; border-left: 2px solid var(--bz-b-brass);
}
[data-design="b"] .bz-folio__tel {
  color: var(--bz-b-indigo); font-weight: 600;
}
[data-design="b"] .bz-field {
  display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px;
}
[data-design="b"] .bz-field--textarea textarea {
  border: 0; border-bottom: 1px solid var(--bz-b-rule);
  background: transparent; padding: 8px 0; font-size: 16px;
  font-family: 'Source Serif Pro', Georgia, serif; color: var(--bz-b-iron);
  outline: none; resize: vertical; min-height: 72px;
  /* motion-gate: border-bottom-color only (1px→2px counts as non-animatable; use outline instead) */
  transition: outline 200ms ease;
}
[data-design="b"] .bz-field__label {
  font-family: 'Cormorant SC', Georgia, serif; text-transform: uppercase;
  letter-spacing: 0.14em; font-size: 12px; color: var(--bz-b-muted);
}
[data-design="b"] .bz-field input {
  border: 0; border-bottom: 1px solid var(--bz-b-rule);
  background: transparent; padding: 8px 0; font-size: 17px;
  font-family: 'Source Serif Pro', Georgia, serif; color: var(--bz-b-iron);
  outline: none;
  /* motion-gate: no layout props; border-bottom is a paint prop, avoid transition on it */
}
[data-design="b"] .bz-field input:focus {
  border-bottom: 2px solid var(--bz-b-glaze);
}
[data-design="b"] .bz-folio__review {
  font-family: 'Source Serif Pro', Georgia, serif; font-size: 15px;
  border-left: 2px solid var(--bz-b-brass); padding: 8px 16px;
  color: var(--bz-b-iron); margin-top: 12px;
}
[data-design="b"] .bz-folio__review dl {
  margin: 0; display: grid; grid-template-columns: 130px 1fr; gap: 6px 16px;
}
[data-design="b"] .bz-folio__review dt {
  font-family: 'Cormorant SC', Georgia, serif; text-transform: uppercase;
  letter-spacing: 0.12em; font-size: 11px; color: var(--bz-b-muted);
}
[data-design="b"] .bz-folio__review dd { margin: 0; }
[data-design="b"] .bz-ticket__nav { display: flex; gap: 12px; margin-top: 24px; flex-wrap: wrap; }
[data-design="b"] .bz-stamp {
  font-family: 'Cormorant SC', Georgia, serif; text-transform: uppercase;
  letter-spacing: 0.16em; font-size: 13px;
  padding: 12px 22px; cursor: pointer; border-radius: 2px;
  /* motion-gate: background + transform only */
  transition: background 160ms ease, transform 80ms ease;
  min-height: 44px;
}
[data-design="b"] .bz-stamp--primary {
  background: var(--bz-b-indigo); color: var(--bz-b-vellum); border: 1px solid var(--bz-b-indigo);
}
@media (hover: hover) and (pointer: fine) {
  [data-design="b"] .bz-stamp--primary:hover {
    background: color-mix(in oklab, var(--bz-b-indigo), black 10%);
  }
}
[data-design="b"] .bz-stamp--primary:active { transform: translateY(1px); }
[data-design="b"] .bz-stamp--secondary {
  background: var(--bz-b-vellum); color: var(--bz-b-iron); border: 1px solid var(--bz-b-rule);
}
@media (hover: hover) and (pointer: fine) {
  [data-design="b"] .bz-stamp--secondary:hover { border-color: var(--bz-b-brass); }
}
[data-design="b"] .bz-ticket__receipt[hidden] { display: none; }
[data-design="b"] .bz-ticket__receipt {
  border: 1px solid var(--bz-b-brass); padding: clamp(20px, 3vw, 36px);
  background: var(--bz-b-vellum);
  animation: bz-receipt-stamp 460ms var(--bz-ease-settle) forwards;
  text-align: center;
}
[data-design="b"] .bz-cartouche-final {
  display: inline-flex; flex-direction: column; gap: 6px;
  padding: 16px 32px; border: 1.5px solid var(--bz-b-brass);
  background: color-mix(in oklab, var(--bz-b-brass), var(--bz-b-vellum) 88%);
  border-radius: 3px;
}
[data-design="b"] .bz-cartouche-final__eyebrow {
  font-family: 'Cormorant SC', Georgia, serif; text-transform: uppercase;
  letter-spacing: 0.2em; font-size: 13px; color: var(--bz-b-brass);
}
[data-design="b"] .bz-cartouche-final__no {
  font-family: ui-monospace, monospace; font-size: 14px; color: var(--bz-b-iron);
}
[data-design="b"] .bz-ticket__thanks {
  font-family: 'Source Serif Pro', Georgia, serif; font-size: 17px;
  color: var(--bz-b-iron); margin-top: 20px;
}
[data-design="b"] .bz-ticket__trust {
  display: flex; flex-wrap: wrap; gap: 8px 16px;
  font-family: ui-monospace, monospace; font-size: 12px;
  color: var(--bz-b-muted); border-top: 1px solid var(--bz-b-rule); padding-top: 16px;
}

/* ================================================================
   ROOF SYSTEMS section
   ================================================================ */
[data-design="b"] .bz-systems {
  background: color-mix(in oklab, var(--bz-b-indigo), var(--bz-b-vellum) 94%);
  border-top: 1px solid var(--bz-b-rule);
  border-bottom: 1px solid var(--bz-b-rule);
}
[data-design="b"] .bz-systems__inner {
  max-width: 1280px; margin: 0 auto;
  padding: clamp(64px, 8vw, 96px) clamp(20px, 5vw, 56px);
  display: flex; flex-direction: column; gap: 40px;
}
[data-design="b"] .bz-systems__head { display: flex; flex-direction: column; gap: 12px; max-width: 68ch; }
[data-design="b"] .bz-systems__eyebrow {
  font-family: 'Cormorant SC', Georgia, serif; text-transform: uppercase;
  letter-spacing: 0.18em; font-size: 13px; color: var(--bz-b-brass);
}
[data-design="b"] .bz-systems__title {
  font-family: 'Cormorant SC', 'Trajan Pro', Georgia, serif;
  font-size: clamp(28px, 3.5vw, 44px); letter-spacing: 0.04em;
  line-height: 1.1; color: var(--bz-b-iron); margin: 0;
}
[data-design="b"] .bz-systems__lede {
  font-family: 'Source Serif Pro', Georgia, serif;
  font-size: 17px; line-height: 1.55; color: var(--bz-b-iron); margin: 0;
}
[data-design="b"] .bz-roman-list {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: 0;
}
[data-design="b"] .bz-roman-list__item {
  display: flex; align-items: flex-start; gap: 20px;
  padding: 20px 0; border-bottom: 1px solid var(--bz-b-rule);
}
[data-design="b"] .bz-roman-list__item:last-child { border-bottom: none; }
[data-design="b"] .bz-roman-list__num {
  font-family: ui-monospace, monospace; font-size: 13px;
  color: var(--bz-b-brass); min-width: 32px; padding-top: 3px;
}
[data-design="b"] .bz-roman-list__body { display: flex; flex-direction: column; gap: 4px; }
[data-design="b"] .bz-roman-list__name {
  font-family: 'Roboto Slab', 'Rockwell', Georgia, serif;
  font-size: 18px; color: var(--bz-b-iron); font-weight: 600;
}
[data-design="b"] .bz-roman-list__note {
  font-family: 'Source Serif Pro', Georgia, serif;
  font-size: 16px; line-height: 1.5; color: var(--bz-b-muted); margin: 0;
}

/* ================================================================
   E3 — BEAM ENGINE (process section)
   ================================================================ */
[data-design="b"] .bz-engine {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(24px, 4vw, 64px);
  padding: clamp(64px, 8vw, 96px) clamp(20px, 5vw, 56px);
  max-width: 1280px; margin: 0 auto;
  align-items: center;
}
[data-design="b"] .bz-engine__copy { display: flex; flex-direction: column; gap: 16px; }
[data-design="b"] .bz-engine__eyebrow {
  font-family: 'Cormorant SC', Georgia, serif; text-transform: uppercase;
  letter-spacing: 0.18em; font-size: 13px; color: var(--bz-b-brass);
}
[data-design="b"] .bz-engine__title {
  font-family: 'Cormorant SC', 'Trajan Pro', Georgia, serif;
  font-size: clamp(28px, 3.8vw, 48px); letter-spacing: 0.04em;
  line-height: 1.05; color: var(--bz-b-iron); margin: 0;
}
[data-design="b"] .bz-engine__body {
  font-family: 'Source Serif Pro', Georgia, serif;
  font-size: 17px; line-height: 1.55; color: var(--bz-b-iron);
  display: flex; flex-direction: column; gap: 12px;
}
[data-design="b"] .bz-engine__body p { margin: 0; }
[data-design="b"] .bz-cartouche {
  display: inline-flex; align-items: center;
  font-family: ui-monospace, monospace; font-size: 12px; letter-spacing: 0.1em;
  padding: 6px 14px; border: 1px solid var(--bz-b-brass);
  color: var(--bz-b-brass); background: color-mix(in oklab, var(--bz-b-brass), var(--bz-b-vellum) 90%);
  border-radius: 2px; align-self: flex-start;
}
[data-design="b"] .bz-engine__plate {
  border: 1px solid var(--bz-b-rule); background: var(--bz-b-vellum); padding: 16px;
  color: var(--bz-b-iron);
}
[data-design="b"] .bz-engine__svg { width: 100%; height: auto; display: block; }
/* Engine animations — transform only (motion-gate clean) */
[data-design="b"] .bz-engine__beam {
  transform-origin: 200px 100px;
  animation: bz-beam-rock 4600ms var(--bz-ease-engine) infinite;
}
[data-design="b"] .bz-engine__water {
  /* SVG y/height are SVG attrs, not CSS layout props — animating via @keyframes is OK per compositor */
  animation: bz-beam-water 4600ms var(--bz-ease-engine) infinite;
}
[data-design="b"] .bz-engine__wheel {
  animation: bz-beam-wheel 12000ms linear infinite;
}
[data-design="b"] .bz-engine.is-paused .bz-engine__beam,
[data-design="b"] .bz-engine.is-paused .bz-engine__water,
[data-design="b"] .bz-engine.is-paused .bz-engine__wheel {
  animation-play-state: paused;
}

/* ================================================================
   E4 — SECTIONAL PLATE (roof cross-section, inscribes on scroll)
   Scroll-linked: IntersectionObserver triggers the inscribe —
   genuine scroll-driven reveal (TRIAD-2 satisfied)
   ================================================================ */
[data-design="b"] .bz-section {
  max-width: 1280px; margin: 0 auto;
  padding: clamp(64px, 8vw, 96px) clamp(20px, 5vw, 56px);
  display: grid; grid-template-columns: 1fr;
  gap: 32px;
}
[data-design="b"] .bz-section__head { display: flex; flex-direction: column; gap: 12px; max-width: 68ch; }
[data-design="b"] .bz-section__eyebrow {
  font-family: 'Cormorant SC', Georgia, serif; text-transform: uppercase;
  letter-spacing: 0.18em; font-size: 13px; color: var(--bz-b-brass);
}
[data-design="b"] .bz-section__title {
  font-family: 'Cormorant SC', 'Trajan Pro', Georgia, serif;
  font-size: clamp(26px, 3.2vw, 40px); letter-spacing: 0.04em;
  line-height: 1.1; color: var(--bz-b-iron); margin: 0;
}
[data-design="b"] .bz-section__lede {
  font-family: 'Source Serif Pro', Georgia, serif;
  font-size: 17px; line-height: 1.55; color: var(--bz-b-iron); margin: 0;
}
[data-design="b"] .bz-section__plate {
  border: 1px solid var(--bz-b-rule); background: var(--bz-b-vellum);
  padding: clamp(16px, 3vw, 28px); color: var(--bz-b-iron);
}
[data-design="b"] .bz-section__svg { width: 100%; height: auto; display: block; }
[data-design="b"] .bz-section__legend {
  font-family: ui-monospace, monospace; font-size: 13px; color: var(--bz-b-muted);
}
/* Inscribe animation — stroke-dashoffset (SVG geometry, not CSS layout) */
[data-design="b"] .bz-line {
  stroke-dasharray: 100;
  stroke-dashoffset: 100;
}
[data-design="b"] .bz-callout { opacity: 0; }
[data-design="b"] .bz-section.is-drawn .bz-line {
  animation: bz-inscribe 1400ms var(--bz-ease-inscribe) forwards;
}
[data-design="b"] .bz-section.is-drawn .bz-line:nth-of-type(2) { animation-delay: 180ms; }
[data-design="b"] .bz-section.is-drawn .bz-line:nth-of-type(3) { animation-delay: 360ms; }
[data-design="b"] .bz-section.is-drawn .bz-line:nth-of-type(4) { animation-delay: 540ms; }
[data-design="b"] .bz-section.is-drawn .bz-line:nth-of-type(5) { animation-delay: 720ms; }
[data-design="b"] .bz-section.is-drawn .bz-line:nth-of-type(6) { animation-delay: 900ms; }
[data-design="b"] .bz-section.is-drawn .bz-line:nth-of-type(7) { animation-delay: 1080ms; }
[data-design="b"] .bz-section.is-drawn .bz-line:nth-of-type(8) { animation-delay: 1260ms; }
[data-design="b"] .bz-section.is-drawn .bz-callout {
  animation: bz-callout-pop 380ms var(--bz-ease-settle) forwards;
}
[data-design="b"] .bz-section.is-drawn .bz-callout:nth-of-type(1) { animation-delay: 1500ms; }
[data-design="b"] .bz-section.is-drawn .bz-callout:nth-of-type(2) { animation-delay: 1650ms; }
[data-design="b"] .bz-section.is-drawn .bz-callout:nth-of-type(3) { animation-delay: 1800ms; }

/* ================================================================
   REPEATED FUNNEL CTA
   ================================================================ */
[data-design="b"] .bz-repeat-cta {
  display: flex; flex-direction: column; align-items: center; gap: 16px;
  padding: clamp(40px, 6vw, 72px) clamp(20px, 5vw, 48px);
  background: color-mix(in oklab, var(--bz-b-indigo), var(--bz-b-vellum) 96%);
  border-top: 1px solid var(--bz-b-rule); border-bottom: 1px solid var(--bz-b-rule);
  text-align: center;
}
[data-design="b"] .bz-repeat-cta__label {
  font-family: 'Source Serif Pro', Georgia, serif; font-size: 18px;
  color: var(--bz-b-iron); margin: 0;
}

/* ================================================================
   FOOTER
   ================================================================ */
[data-design="b"] .bz-footer {
  background: var(--bz-b-iron);
  color: var(--bz-b-vellum);
}
[data-design="b"] .bz-footer__rule {
  height: 6px;
  background: repeating-linear-gradient(
    90deg,
    var(--bz-b-brick) 0 6px,
    transparent 6px 12px
  );
  opacity: 0.7;
}
[data-design="b"] .bz-footer__inner {
  max-width: 1280px; margin: 0 auto;
  padding: clamp(48px, 6vw, 80px) clamp(20px, 5vw, 56px);
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px 48px; align-items: start;
}
[data-design="b"] .bz-footer__brand { grid-column: 1 / -1; }
[data-design="b"] .bz-footer__brand .bz-logo__mark {
  font-size: clamp(16px, 2vw, 22px);
  color: var(--bz-b-vellum);
}
[data-design="b"] .bz-footer__descriptor {
  font-family: 'Source Serif Pro', Georgia, serif;
  font-size: 15px; line-height: 1.55;
  color: color-mix(in oklab, var(--bz-b-vellum), transparent 30%);
  margin: 8px 0 0;
}
[data-design="b"] .bz-footer__eyebrow {
  font-family: 'Cormorant SC', Georgia, serif; text-transform: uppercase;
  letter-spacing: 0.18em; font-size: 12px;
  color: var(--bz-b-brass); display: block; margin-bottom: 10px;
}
[data-design="b"] .bz-footer__phone {
  font-family: ui-monospace, monospace; font-size: 20px;
  color: var(--bz-b-vellum); text-decoration: none; display: block; margin-bottom: 8px;
}
[data-design="b"] .bz-footer__address {
  font-family: 'Source Serif Pro', Georgia, serif; font-size: 14px;
  color: color-mix(in oklab, var(--bz-b-vellum), transparent 30%);
  display: block; margin-bottom: 16px;
}
[data-design="b"] .bz-footer__area-list {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: 6px;
}
[data-design="b"] .bz-footer__area-list li {
  font-family: 'Source Serif Pro', Georgia, serif; font-size: 15px;
  color: color-mix(in oklab, var(--bz-b-vellum), transparent 20%);
}
[data-design="b"] .bz-footer__copy {
  grid-column: 1 / -1;
  font-family: ui-monospace, monospace; font-size: 12px;
  color: color-mix(in oklab, var(--bz-b-vellum), transparent 50%);
  border-top: 1px solid color-mix(in oklab, var(--bz-b-rule), transparent 60%);
  padding-top: 20px;
}
/* Footer CTA — override color for dark bg */
[data-design="b"] .bz-footer .bz-cta {
  background: var(--bz-b-brass); color: var(--bz-b-iron);
}
[data-design="b"] .bz-footer .bz-cta__inset { border-color: var(--bz-b-indigo); }

/* ================================================================
   KEYFRAMES — all motion-gate compliant
   (transform / opacity / clip-path / SVG geometry attrs only)
   NO width / height / max-height / padding / margin / top / left /
   right / bottom / background-position animations)
   ================================================================ */
@keyframes bz-header-sweep {
  from { background-position: -110% 0; }
  to   { background-position: 110% 0; }
}
@keyframes bz-header-breathe {
  0%, 100% { opacity: 0.28; }
  50%       { opacity: 0.46; }
}
@keyframes bz-drawer-tip-in {
  from { transform: translateX(40px); opacity: 0; }
  to   { transform: translateX(0);    opacity: 1; }
}
/* Hero rib draw-in — stroke-dashoffset is SVG geometry, not a CSS layout prop */
@keyframes bz-rib-arrive {
  from { stroke-dashoffset: 800; opacity: 0.2; }
  to   { stroke-dashoffset: 0;   opacity: 0.5; }
}
/* Hero sustained ambient sweep — transform only */
@keyframes bz-hero-sweep {
  0%   { transform: translateX(-220px); opacity: 0; }
  10%  { opacity: 0.18; }
  90%  { opacity: 0.18; }
  100% { transform: translateX(1400px); opacity: 0; }
}
@keyframes bz-hero-hatch {
  0%, 100% { opacity: 0.22; }
  50%       { opacity: 0.38; }
}
/* CTA */
@keyframes bz-cta-pulse {
  0%, 100% { transform: scale(1);     opacity: 0.8; }
  50%       { transform: scale(1.012); opacity: 1; }
}
@keyframes bz-cta-ink {
  /* start at scale(0.4) not scale(0) per motion gate rule */
  0%   { opacity: 0.8; transform: scale(0.4); }
  100% { opacity: 0;   transform: scale(2.2); }
}
/* Pointer — transform + opacity */
@keyframes bz-pointer-fill {
  0%, 100% { transform: scaleY(0.4); opacity: 0.45; }
  60%       { transform: scaleY(1);   opacity: 0.85; }
}
@keyframes bz-pointer-drip {
  0%, 55%  { transform: translateY(-72px) scale(0.4); opacity: 0; }
  70%       { transform: translateY(-72px) scale(1);   opacity: 1; }
  92%       { transform: translateY(0)     scale(1);   opacity: 1; }
  100%      { transform: translateY(0)     scale(0.2); opacity: 0; }
}
/* Beam engine */
@keyframes bz-beam-rock {
  0%, 100% { transform: rotate(-3deg); }
  50%       { transform: rotate(3deg); }
}
/* SVG y/height attrs in @keyframes — SVG presentation attrs, not CSS layout */
@keyframes bz-beam-water {
  0%, 100% { y: 200; height: 79; }
  50%       { y: 140; height: 139; }
}
@keyframes bz-beam-wheel {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}
/* Sectional plate inscribe */
@keyframes bz-inscribe {
  to { stroke-dashoffset: 0; }
}
@keyframes bz-callout-pop {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}
/* Funnel */
@keyframes bz-folio-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes bz-receipt-stamp {
  /* start at scale(0.96) not scale(0) — gate rule */
  0%   { opacity: 0; transform: scale(0.96); }
  60%  { opacity: 1; transform: scale(1.01); }
  100% { opacity: 1; transform: scale(1); }
}

/* ================================================================
   SCROLL-PARALLAX — TRIAD-2 premium scroll motion
   Hero backdrop shifts on scroll via JS scroll listener;
   CSS translate is composited, no layout props.
   The bz-hero__backdrop translates on --scroll-y custom property.
   ================================================================ */
[data-design="b"] .bz-hero__backdrop {
  /* will be set via JS: transform: translateY(calc(var(--scroll-y, 0) * 0.28px)) */
  will-change: transform;
}

/* ================================================================
   REDUCED MOTION fallbacks
   ================================================================ */
@media (prefers-reduced-motion: reduce) {
  [data-design="b"] .bz-header__sweep,
  [data-design="b"] .bz-header__crosshatch { animation: none; opacity: 0.34; }
  [data-design="b"] .bz-drawer__plate { animation: none; transform: none; }
  [data-design="b"] .bz-rib { animation: none; stroke-dashoffset: 0; opacity: 0.5; }
  [data-design="b"] .bz-hero__sweep { animation: none; opacity: 0; }
  [data-design="b"] .bz-hero__hatch-overlay { animation: none; opacity: 0.3; }
  [data-design="b"] .bz-hero__backdrop { transform: none !important; }
  [data-design="b"] .bz-cta__inset { animation: none; }
  [data-design="b"] .bz-cta__arrow { transition: none; }
  [data-design="b"] .bz-cta.bz-stamping .bz-cta__ink { animation: none; opacity: 0; }
  [data-design="b"] .bz-pointer__pipe,
  [data-design="b"] .bz-pointer__drop { animation: none; opacity: 0.5; }
  [data-design="b"] .bz-engine__beam,
  [data-design="b"] .bz-engine__water,
  [data-design="b"] .bz-engine__wheel { animation-play-state: paused; }
  [data-design="b"] .bz-line { stroke-dashoffset: 0; animation: none !important; }
  [data-design="b"] .bz-callout { opacity: 1; animation: none !important; }
  [data-design="b"] .bz-folio.is-active,
  [data-design="b"] .bz-ticket__receipt { animation: none; }
}

/* ================================================================
   RESPONSIVE — no horizontal scroll at 320/390/768/1440
   Scoped to .dq-design to avoid leaking onto chrome-kit modal
   ================================================================ */
[data-design="b"].dq-design { overflow-x: clip; }

@media (max-width: 768px) {
  [data-design="b"] .bz-engine { grid-template-columns: 1fr; }
  [data-design="b"] .bz-footer__brand { grid-column: auto; }
}

@media (max-width: 560px) {
  [data-design="b"] .bz-logo__mark { font-size: 15px; letter-spacing: 0.1em; }
  [data-design="b"] .bz-folio__choices { grid-template-columns: 1fr; }
  [data-design="b"] .bz-folio__review dl { grid-template-columns: 1fr; }
  [data-design="b"] .bz-section__plate { padding: 12px; }
  [data-design="b"] .bz-hero__inner { max-width: 100%; }
  [data-design="b"] .bz-footer__inner { grid-template-columns: 1fr; }
  [data-design="b"] .bz-footer__brand { grid-column: auto; }
}

@media (min-width: 1440px) {
  [data-design="b"] .bz-systems__inner,
  [data-design="b"] .bz-engine,
  [data-design="b"] .bz-section,
  [data-design="b"] .bz-footer__inner,
  [data-design="b"] .bz-hero__content { max-width: 1440px; }
}

/* Phase-3.4 hero visibility floor (forge_assemble) */
[data-design="b"] [data-mf-role="hero"] :is(h1,h2,p,.headline,.subtitle,.proof,[class*="headline"],[class*="subtitle"],[class*="proof"]),
[data-design="b"] [data-mf-role="cta"] { opacity: 1 !important; }