/* ═══════════════════════════════════════════════════════════════════
   Roofing By Sam — Design B (Tracciato remapped to slot b)
   ALL selectors scoped to [data-design="b"].dq-design
   ALL keyframes prefixed b-
   ZERO [data-design="b"].dq-design selectors
   ═══════════════════════════════════════════════════════════════════ */

/* ─── 1. Design tokens ──────────────────────────────────────────── */
[data-design="b"] {
  --b-paper:           #F4EFE6;
  --b-paper-deep:      #ECE5D6;
  --b-marmo:           #FCFAF4;
  --b-ink:             #1C1B1A;
  --b-ink-soft:        #3E3A35;
  --b-pencil:          #736B5F;
  --b-pencil-trace:    #B6AC9C;
  --b-ottanio:         #0F4C5C;
  --b-ottanio-deep:    #0A3742;
  --b-ottone:          #A47148;
  --b-ottone-warm:     #C99767;
  --b-rule:            #D8CFBE;
  --b-critical:        #7C2A1A;
  --b-success:         #3E5C32;

  --b-font-display:    "Cormorant Garamond", "EB Garamond", "Iowan Old Style", Georgia, serif;
  --b-font-body:       "Cormorant Garamond", "EB Garamond", "Iowan Old Style", Georgia, serif;
  --b-font-annotation: "JetBrains Mono", "Söhne Mono", ui-monospace, "Menlo", monospace;

  --b-t-mono-xs: clamp(10px, 0.65vw + 8px, 12px);
  --b-t-mono-sm: clamp(12px, 0.8vw + 10px, 14px);
  --b-t-body:    clamp(16px, 0.4vw + 14px, 19px);
  --b-t-lead:    clamp(19px, 0.7vw + 16px, 24px);
  --b-t-h3:      clamp(22px, 1.0vw + 18px, 30px);
  --b-t-h2:      clamp(30px, 2.2vw + 18px, 56px);
  --b-t-h1:      clamp(44px, 4.5vw + 22px, 96px);

  --b-gap-hairline: 4px;
  --b-gap-tick:     8px;
  --b-gap-line:     12px;
  --b-gap-stanza:   20px;
  --b-gap-cell:     32px;
  --b-gap-rule:     48px;
  --b-gap-bay:      80px;
  --b-gap-court:    128px;
  --b-measure:      66ch;

  --b-dur-trace:    1200ms;
  --b-dur-settle:   420ms;
  --b-dur-stamp:    180ms;
  --b-dur-register: 600ms;
  --b-dur-breath:   4500ms;

  --b-ease-pen:    cubic-bezier(0.65, 0, 0.35, 1);
  --b-ease-settle: cubic-bezier(0.16, 1, 0.3, 1);
  --b-ease-stamp:  cubic-bezier(0.5, 0, 0.85, 0.4);
  --b-ease-vellum: cubic-bezier(0.4, 0, 0.6, 1);

  --b-r-none:   0;
  --b-r-tick:   1px;
  --b-r-input:  2px;
  --b-r-stamp:  3px;
  --b-r-mark:   50%;

  --b-lift-vellum: 1px 2px 0 var(--b-ottone-warm);
  --b-lift-press:  inset 0 1px 0 var(--b-ottanio-deep);

  /* Design primary exposed per slot-scope contract */
  --design-b-primary: var(--b-ottanio);
}

/* ─── 2. Base reset (scoped) ────────────────────────────────────── */
[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;
}

[data-design="b"].dq-design article,
[data-design="b"] .dq-design {
  background: var(--b-paper);
  color: var(--b-ink);
  font-family: var(--b-font-body);
  font-size: var(--b-t-body);
  line-height: 1.6;
  box-sizing: border-box;
}
[data-design="b"].dq-design *, [data-design="b"].dq-design *::before, [data-design="b"].dq-design *::after {
  box-sizing: border-box;
}

/* ─── 3. Typography helpers ─────────────────────────────────────── */
[data-design="b"] .rf-eyebrow {
  font-family: var(--b-font-annotation);
  font-size: var(--b-t-mono-sm);
  color: var(--b-ottone);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  margin: 0 0 var(--b-gap-tick);
}
[data-design="b"] .rf-h2 {
  font-family: var(--b-font-display);
  font-size: var(--b-t-h2);
  letter-spacing: -0.01em;
  color: var(--b-ink);
  line-height: 1.05;
  margin: 0 0 var(--b-gap-line);
}
[data-design="b"] .rf-lede {
  font-family: var(--b-font-body);
  font-size: var(--b-t-lead);
  color: var(--b-ink-soft);
  line-height: 1.45;
  margin: 0;
  max-width: var(--b-measure);
}
[data-design="b"] .rf-body {
  font-family: var(--b-font-body);
  font-size: var(--b-t-body);
  color: var(--b-ink-soft);
  line-height: 1.6;
  max-width: var(--b-measure);
  margin: 0 0 var(--b-gap-stanza);
}

/* ─── 4. E1 — Animated minimalist header ───────────────────────── */
[data-design="b"] .rf-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--b-paper);
  border-bottom: 1px solid var(--b-rule);
}
[data-design="b"] .rf-header__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  padding: 0 clamp(16px, 4vw, 48px);
  position: relative;
  z-index: 2;
}
[data-design="b"] .rf-logo {
  font-family: var(--b-font-display);
  font-size: clamp(20px, 1.4vw + 14px, 26px);
  letter-spacing: -0.01em;
  color: var(--b-ink);
  text-decoration: none;
  font-weight: 500;
  line-height: 1;
}
[data-design="b"] .rf-logo__mark { display: inline-block; }

[data-design="b"] .rf-hamburger {
  appearance: none;
  background: transparent;
  border: 1px solid var(--b-rule);
  border-radius: var(--b-r-tick);
  width: 44px;
  height: 44px;
  padding: 10px 10px;
  display: inline-flex;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
  transition: border-color var(--b-dur-stamp) var(--b-ease-stamp);
}
[data-design="b"] .rf-hamburger:focus-visible {
  outline: 2px solid var(--b-ottanio);
  outline-offset: 2px;
}
[data-design="b"] .rf-hamburger__rule {
  display: block;
  height: 1px;
  background: var(--b-ink);
}
[data-design="b"] .rf-hamburger__rule:nth-child(2) { width: 75%; }
[data-design="b"] .rf-hamburger__rule:nth-child(3) { width: 90%; }

@media (hover: hover) and (pointer: fine) {
  [data-design="b"] .rf-hamburger:hover { border-color: var(--b-ink); }
}

/* Dim-string atmosphere — brass dimension line drawing across the bottom rule */
[data-design="b"] .rf-dimstring {
  position: absolute;
  left: clamp(16px, 4vw, 48px);
  right: clamp(16px, 4vw, 48px);
  bottom: -1px;
  height: 14px;
  display: flex;
  align-items: center;
  gap: 6px;
  pointer-events: none;
  font-family: var(--b-font-annotation);
  font-size: var(--b-t-mono-xs);
  color: var(--b-ottone);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
[data-design="b"] .rf-dimstring__line {
  flex: 1 1 auto;
  height: 1px;
  background: var(--b-ottone);
  transform-origin: left center;
  transform: scaleX(0);
  animation: b-dim-extend 23s var(--b-ease-pen) infinite;
}
[data-design="b"] .rf-dimstring__line:nth-of-type(2) {
  transform-origin: right center;
  animation-name: b-dim-extend-rev;
  animation-delay: 0.3s;
}
[data-design="b"] .rf-dimstring__value {
  opacity: 0;
  white-space: nowrap;
  animation: b-dim-value 23s var(--b-ease-pen) infinite;
}
[data-design="b"] .rf-dimstring__tick {
  width: 8px;
  height: 8px;
  border: 1px solid var(--b-ottone);
  border-radius: var(--b-r-mark);
  background: var(--b-paper);
  opacity: 0;
  animation: b-dim-tick 23s var(--b-ease-pen) infinite;
}
[data-design="b"] .rf-dimstring__tick--end { animation-delay: 11.5s; }

@keyframes b-dim-extend {
  0%   { transform: scaleX(0); }
  18%  { transform: scaleX(1); }
  72%  { transform: scaleX(1); opacity: 1; }
  92%  { transform: scaleX(1); opacity: 0; }
  100% { transform: scaleX(0); opacity: 0; }
}
@keyframes b-dim-extend-rev {
  0%   { transform: scaleX(0); }
  18%  { transform: scaleX(1); }
  72%  { transform: scaleX(1); opacity: 1; }
  92%  { transform: scaleX(1); opacity: 0; }
  100% { transform: scaleX(0); opacity: 0; }
}
@keyframes b-dim-value {
  0%, 22%   { opacity: 0; }
  30%, 70%  { opacity: 1; }
  90%, 100% { opacity: 0; }
}
@keyframes b-dim-tick {
  0%, 12% { opacity: 0; }
  22%     { opacity: 1; }
  88%     { opacity: 1; }
  96%     { opacity: 0; }
}

/* Vellum drawer */
[data-design="b"] .rf-drawer {
  position: fixed;
  inset: 0 0 0 auto;
  width: min(360px, 88vw);
  background: var(--b-marmo);
  border-left: 1px solid var(--b-ink);
  padding: 80px 32px 32px;
  z-index: 50;
  transform: translateX(100%);
  transition: transform var(--b-dur-register) var(--b-ease-settle);
  display: flex;
  flex-direction: column;
  gap: var(--b-gap-stanza);
}
[data-design="b"] .rf-drawer[data-open="true"] { transform: translateX(0); }
[data-design="b"] .rf-drawer[hidden] { display: none; }

[data-design="b"] .rf-drawer__pin {
  position: absolute;
  left: 12px;
  width: 8px;
  height: 8px;
  border-radius: var(--b-r-mark);
  background: var(--b-ottone-warm);
  box-shadow: 0 0 0 1px var(--b-ottone) inset;
}
[data-design="b"] .rf-drawer__pin--top    { top: 16px; }
[data-design="b"] .rf-drawer__pin--bottom { bottom: 16px; }
[data-design="b"] .rf-drawer__close {
  position: absolute;
  top: 14px;
  right: 18px;
  background: transparent;
  border: 0;
  font-size: 28px;
  line-height: 1;
  color: var(--b-ink);
  cursor: pointer;
  min-width: 44px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}
[data-design="b"] .rf-nav {
  display: flex;
  flex-direction: column;
  gap: var(--b-gap-stanza);
}
[data-design="b"] .rf-nav__link {
  font-family: var(--b-font-display);
  font-size: var(--b-t-h3);
  color: var(--b-ink);
  text-decoration: none;
  border-bottom: 1px solid var(--b-rule);
  padding-bottom: var(--b-gap-tick);
  transition: color var(--b-dur-stamp) var(--b-ease-stamp),
              border-color var(--b-dur-stamp) var(--b-ease-stamp);
}
@media (hover: hover) and (pointer: fine) {
  [data-design="b"] .rf-nav__link:hover {
    color: var(--b-ottanio);
    border-color: var(--b-ottanio);
  }
}
[data-design="b"] .rf-drawer__actions {
  display: flex;
  flex-direction: column;
  gap: var(--b-gap-tick);
  margin-top: auto;
}
[data-design="b"] .rf-drawer__phone {
  font-family: var(--b-font-annotation);
  font-size: var(--b-t-mono-sm);
  color: var(--b-pencil);
  text-decoration: none;
  letter-spacing: 0.1em;
  padding: 12px 0;
  display: block;
  min-height: 44px;
}

/* ─── 5. E2 — Animated CTA (Stamp) ─────────────────────────────── */
[data-design="b"] .rf-cta {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--b-gap-tick);
  padding: 14px 22px;
  background: var(--b-ottanio);
  color: var(--b-marmo);
  font-family: var(--b-font-annotation);
  font-size: var(--b-t-mono-sm);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  text-decoration: none;
  border-radius: var(--b-r-stamp);
  isolation: isolate;
  transition:
    background-color var(--b-dur-stamp) var(--b-ease-stamp),
    transform var(--b-dur-stamp) var(--b-ease-stamp);
  animation: b-cta-breath var(--b-dur-breath) ease-in-out infinite;
  min-height: 44px;
}
[data-design="b"] .rf-cta__label { line-height: 1; }
[data-design="b"] .rf-cta__arrow {
  display: inline-flex;
  color: var(--b-ottone-warm);
  transform: translateX(0);
  transition: transform var(--b-dur-settle) var(--b-ease-pen);
}
[data-design="b"] .rf-cta__corner {
  position: absolute;
  width: 14px;
  height: 14px;
  border: 1.5px solid var(--b-ottone);
  pointer-events: none;
  transition: transform var(--b-dur-register) var(--b-ease-pen),
              border-color var(--b-dur-stamp) var(--b-ease-stamp);
}
[data-design="b"] .rf-cta__corner--tl {
  top: -10px;
  left: -10px;
  border-right: 0;
  border-bottom: 0;
  transform: translate(-2px, -2px);
}
[data-design="b"] .rf-cta__corner--br {
  bottom: -10px;
  right: -10px;
  border-left: 0;
  border-top: 0;
  transform: translate(2px, 2px);
}
[data-design="b"] .rf-cta:focus-visible {
  outline: 2px solid var(--b-ottone-warm);
  outline-offset: 4px;
}
[data-design="b"] .rf-cta:focus-visible .rf-cta__corner--tl { transform: translate(0,0); border-color: var(--b-ottone-warm); }
[data-design="b"] .rf-cta:focus-visible .rf-cta__corner--br { transform: translate(0,0); border-color: var(--b-ottone-warm); }
[data-design="b"] .rf-cta:focus-visible .rf-cta__arrow { transform: translateX(6px); }

@media (hover: hover) and (pointer: fine) {
  [data-design="b"] .rf-cta:hover .rf-cta__corner--tl { transform: translate(0,0); border-color: var(--b-ottone-warm); }
  [data-design="b"] .rf-cta:hover .rf-cta__corner--br { transform: translate(0,0); border-color: var(--b-ottone-warm); }
  [data-design="b"] .rf-cta:hover .rf-cta__arrow { transform: translateX(6px); }
}
[data-design="b"] .rf-cta:active {
  background: var(--b-ottanio-deep);
  transform: translateY(1px);
  box-shadow: var(--b-lift-press);
}
@keyframes b-cta-breath {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-1px); }
}

/* ─── 6. E3 — Hero (unique animated backdrop + title block) ─────── */
[data-design="b"] .rf-hero {
  position: relative;
  min-height: clamp(70vh, 80vh, 92vh);
  display: flex;
  align-items: center;
  overflow: hidden;
  isolation: isolate;
  padding: clamp(80px, 10vw, 140px) clamp(16px, 4vw, 48px) clamp(64px, 8vw, 112px);
}

/* Backdrop sits behind everything */
[data-design="b"] .rf-hero__backdrop {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

/* The ambient wash — TRIAD-2: scroll-linked parallax kicks in via JS;
   base is a slow ottanio color field breathing visibly (~6s cycle, ≥0.25 opacity peak) */
[data-design="b"] .rf-hero__wash {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    160deg,
    rgba(15, 76, 92, 0.32) 0%,
    rgba(164, 113, 72, 0.10) 50%,
    rgba(15, 76, 92, 0.18) 100%
  );
  animation: b-hero-wash 6s ease-in-out infinite;
  will-change: opacity;
}
@keyframes b-hero-wash {
  0%, 100% { opacity: 0.55; }
  50%      { opacity: 0.92; }
}

/* Roof SVG backdrop — draws in from eave to ridge on load */
[data-design="b"] .rf-hero__roof-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* SVG lines draw in via stroke-dasharray animation (transform only — GPU) */
[data-design="b"] .rb-eave {
  stroke-dasharray: 800;
  stroke-dashoffset: 800;
  animation: b-line-draw 1.4s var(--b-ease-pen) forwards;
}
[data-design="b"] .rb-rafter--l {
  stroke-dasharray: 500;
  stroke-dashoffset: 500;
  animation: b-line-draw 1.2s var(--b-ease-pen) 0.4s forwards;
}
[data-design="b"] .rb-rafter--r {
  stroke-dasharray: 500;
  stroke-dashoffset: 500;
  animation: b-line-draw 1.2s var(--b-ease-pen) 0.6s forwards;
}
[data-design="b"] .rb-ridge {
  stroke-dasharray: 130;
  stroke-dashoffset: 130;
  animation: b-line-draw 0.6s var(--b-ease-pen) 1.4s forwards;
}
/* Shingle courses — staggered draw-in */
[data-design="b"] .rb-c-l1 { stroke-dasharray: 380; stroke-dashoffset: 380; animation: b-line-draw 0.8s var(--b-ease-pen) 1.0s forwards; }
[data-design="b"] .rb-c-l2 { stroke-dasharray: 360; stroke-dashoffset: 360; animation: b-line-draw 0.8s var(--b-ease-pen) 1.2s forwards; }
[data-design="b"] .rb-c-l3 { stroke-dasharray: 320; stroke-dashoffset: 320; animation: b-line-draw 0.8s var(--b-ease-pen) 1.4s forwards; }
[data-design="b"] .rb-c-l4 { stroke-dasharray: 280; stroke-dashoffset: 280; animation: b-line-draw 0.8s var(--b-ease-pen) 1.6s forwards; }
[data-design="b"] .rb-c-l5 { stroke-dasharray: 240; stroke-dashoffset: 240; animation: b-line-draw 0.8s var(--b-ease-pen) 1.8s forwards; }
[data-design="b"] .rb-c-r1 { stroke-dasharray: 380; stroke-dashoffset: 380; animation: b-line-draw 0.8s var(--b-ease-pen) 1.0s forwards; }
[data-design="b"] .rb-c-r2 { stroke-dasharray: 360; stroke-dashoffset: 360; animation: b-line-draw 0.8s var(--b-ease-pen) 1.2s forwards; }
[data-design="b"] .rb-c-r3 { stroke-dasharray: 320; stroke-dashoffset: 320; animation: b-line-draw 0.8s var(--b-ease-pen) 1.4s forwards; }
[data-design="b"] .rb-c-r4 { stroke-dasharray: 280; stroke-dashoffset: 280; animation: b-line-draw 0.8s var(--b-ease-pen) 1.6s forwards; }
[data-design="b"] .rb-c-r5 { stroke-dasharray: 240; stroke-dashoffset: 240; animation: b-line-draw 0.8s var(--b-ease-pen) 1.8s forwards; }
/* Dimension annotation lines fade in after lines settle */
[data-design="b"] .rb-dim-v,
[data-design="b"] .rb-dim-h,
[data-design="b"] .rb-dim-text {
  opacity: 0;
  animation: b-dim-value 8s var(--b-ease-pen) 2s infinite;
}
@keyframes b-line-draw {
  to { stroke-dashoffset: 0; }
}

/* After initial draw, courses breathe slowly (sustained ambient — not arrival-only) */
[data-design="b"] .rb-course {
  animation-fill-mode: forwards;
}
[data-design="b"] .rf-hero__roof-svg {
  animation: b-svg-breath 8s ease-in-out 3s infinite;
}
@keyframes b-svg-breath {
  0%, 100% { opacity: 0.85; }
  50%      { opacity: 1; }
}

/* Hero text layer — z-index above backdrop, opacity:1 at first paint */
[data-design="b"] .rf-hero__content {
  position: relative;
  z-index: 2;
  max-width: min(var(--b-measure), 100%);
  width: 100%;
}
[data-design="b"] .rf-hero__titleblock {
  max-width: 720px;
}
[data-design="b"] .rf-hero__eyebrow {
  color: var(--b-ottone-warm);
}
[data-design="b"] .rf-hero__h1 {
  font-family: var(--b-font-display);
  font-size: var(--b-t-h1);
  letter-spacing: -0.01em;
  color: var(--b-marmo);
  line-height: 1.0;
  margin: var(--b-gap-tick) 0 var(--b-gap-stanza);
  text-shadow: 0 1px 12px rgba(28, 27, 26, 0.45);
}
[data-design="b"] .rf-hero__subtitle {
  font-family: var(--b-font-body);
  font-size: var(--b-t-lead);
  color: rgba(252, 250, 244, 0.85);
  line-height: 1.4;
  margin: 0 0 var(--b-gap-line);
  max-width: 60ch;
}
[data-design="b"] .rf-hero__proof {
  font-family: var(--b-font-annotation);
  font-size: var(--b-t-mono-sm);
  color: var(--b-ottone-warm);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 0 0 var(--b-gap-cell);
}
[data-design="b"] .rf-hero__cta-group {
  display: flex;
  align-items: center;
  gap: var(--b-gap-cell);
  flex-wrap: wrap;
}
[data-design="b"] .rf-hero__phone-link {
  font-family: var(--b-font-annotation);
  font-size: var(--b-t-mono-sm);
  color: var(--b-ottone-warm);
  text-decoration: none;
  letter-spacing: 0.1em;
  border-bottom: 1px solid rgba(201, 151, 103, 0.4);
  padding-bottom: 2px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  transition: border-color var(--b-dur-stamp) var(--b-ease-stamp);
}
@media (hover: hover) and (pointer: fine) {
  [data-design="b"] .rf-hero__phone-link:hover {
    border-color: var(--b-ottone-warm);
  }
}

/* ─── 7. E6 — Pointer (dimension-line wayfinding) ───────────────── */
[data-design="b"] .rf-pointer {
  display: flex;
  justify-content: center;
  padding: clamp(40px, 8vw, 80px) 16px clamp(56px, 10vw, 96px);
  background: var(--b-paper);
}
[data-design="b"] .tracciato-pointer__hit {
  position: relative;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--b-ottone);
}
[data-design="b"] .tracciato-pointer__tick {
  display: block;
  width: 16px;
  height: 1px;
  background: currentColor;
  opacity: 0.7;
}
[data-design="b"] .tracciato-pointer__rule {
  display: block;
  width: 1px;
  height: 56px;
  background: currentColor;
  transform-origin: top center;
  animation: b-pointer-extend 5s ease-in-out infinite;
}
[data-design="b"] .tracciato-pointer__label {
  font-family: var(--b-font-annotation);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  opacity: 0;
  animation: b-pointer-stamp 5s ease-in-out infinite;
}
@keyframes b-pointer-extend {
  0%, 100% { transform: scaleY(0.4); opacity: 0.4; }
  50%      { transform: scaleY(1);   opacity: 0.85; }
}
@keyframes b-pointer-stamp {
  0%, 30%, 100% { opacity: 0; }
  50%, 70%      { opacity: 0.85; }
}

/* ─── 8. E5 — Funnel (5-step Drafting Register) ─────────────────── */
[data-design="b"] .rf-interactive {
  padding: var(--b-gap-bay) clamp(16px, 4vw, 48px);
  background: var(--b-paper);
  display: grid;
  gap: var(--b-gap-rule);
}
[data-design="b"] .rf-funnel__head { max-width: var(--b-measure); }

[data-design="b"] .rf-funnel {
  max-width: 720px;
  margin-inline: auto;
  width: 100%;
}
[data-design="b"] .rf-funnel__progress {
  display: flex;
  align-items: center;
  gap: var(--b-gap-cell);
  margin-bottom: var(--b-gap-rule);
  font-family: var(--b-font-annotation);
  font-size: var(--b-t-mono-sm);
  color: var(--b-ottone);
  text-transform: uppercase;
  letter-spacing: 0.18em;
}
[data-design="b"] .rf-funnel__progress-line {
  flex: 1 1 auto;
  height: 1px;
  background: var(--b-rule);
  position: relative;
  overflow: hidden;
}
[data-design="b"] .rf-funnel__progress-fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 100%;
  background: var(--b-ottone);
  transform: scaleX(0.2);
  transform-origin: left center;
  transition: transform var(--b-dur-trace) var(--b-ease-pen);
}
[data-design="b"] .rf-funnel__plate {
  position: relative;
  background: var(--b-marmo);
  border: 1px solid var(--b-ink);
  padding: clamp(20px, 3vw, 40px);
  min-height: 360px;
  isolation: isolate;
}
[data-design="b"] .rf-funnel__plate::before,
[data-design="b"] .rf-funnel__plate::after {
  content: "";
  position: absolute;
  width: 8px;
  height: 8px;
  background: var(--b-ottone-warm);
  border: 1px solid var(--b-ottone);
  border-radius: var(--b-r-mark);
}
[data-design="b"] .rf-funnel__plate::before { top: 10px; left: 10px; }
[data-design="b"] .rf-funnel__plate::after  { bottom: 10px; right: 10px; }

[data-design="b"] .rf-funnel__step {
  border: 0;
  padding: 0;
  margin: 0;
  display: none;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--b-dur-settle) var(--b-ease-settle),
              transform var(--b-dur-settle) var(--b-ease-settle);
}
[data-design="b"] .rf-funnel__step[data-active="true"] { display: block; }
[data-design="b"] .rf-funnel__step.is-settled {
  opacity: 1;
  transform: translateY(0);
}
[data-design="b"] .rf-funnel__legend {
  font-family: var(--b-font-display);
  font-size: var(--b-t-h3);
  letter-spacing: -0.01em;
  color: var(--b-ink);
  margin-bottom: var(--b-gap-stanza);
}
[data-design="b"] .rf-funnel__choices {
  display: grid;
  gap: var(--b-gap-tick);
  margin-bottom: var(--b-gap-cell);
}
[data-design="b"] .rf-choice {
  display: flex;
  align-items: center;
  gap: var(--b-gap-tick);
  padding: 14px 18px;
  border: 1px solid var(--b-rule);
  background: var(--b-paper);
  cursor: pointer;
  font-family: var(--b-font-body);
  font-size: var(--b-t-body);
  color: var(--b-ink);
  transition: border-color var(--b-dur-stamp) var(--b-ease-stamp),
              background-color var(--b-dur-stamp) var(--b-ease-stamp);
  min-height: 44px;
}
@media (hover: hover) and (pointer: fine) {
  [data-design="b"] .rf-choice:hover { border-color: var(--b-ink); }
}
[data-design="b"] .rf-choice input[type="radio"] {
  appearance: none;
  width: 14px;
  height: 14px;
  border: 1px solid var(--b-ink);
  background: var(--b-marmo);
  border-radius: var(--b-r-mark);
  margin: 0;
  flex-shrink: 0;
  cursor: pointer;
}
[data-design="b"] .rf-choice input:checked {
  background: var(--b-ottanio);
  border-color: var(--b-ottanio);
  box-shadow: inset 0 0 0 2px var(--b-marmo);
}
[data-design="b"] .rf-choice:has(input:checked) {
  border-color: var(--b-ink);
  background: var(--b-paper-deep);
  box-shadow: inset 0 -2px 0 var(--b-ottanio);
}
[data-design="b"] .rf-funnel__field {
  display: grid;
  gap: var(--b-gap-tick);
  margin-bottom: var(--b-gap-stanza);
}
[data-design="b"] .rf-funnel__label {
  font-family: var(--b-font-annotation);
  font-size: var(--b-t-mono-sm);
  color: var(--b-pencil);
  text-transform: uppercase;
  letter-spacing: 0.18em;
}
[data-design="b"] .rf-funnel__req { color: var(--b-critical); }
[data-design="b"] .rf-funnel__input,
[data-design="b"] .rf-funnel__textarea {
  width: 100%;
  background: var(--b-paper);
  border: 0;
  border-bottom: 1px solid var(--b-ink);
  border-radius: 0;
  padding: 10px 4px;
  font-family: var(--b-font-body);
  font-size: var(--b-t-body);
  color: var(--b-ink);
  outline: none;
  transition: border-color var(--b-dur-stamp) var(--b-ease-stamp);
  box-sizing: border-box;
}
[data-design="b"] .rf-funnel__input:focus,
[data-design="b"] .rf-funnel__textarea:focus {
  border-bottom: 2px solid var(--b-ottanio);
  padding-bottom: 9px;
}
[data-design="b"] .rf-funnel__input.is-touched,
[data-design="b"] .rf-funnel__textarea.is-touched {
  border-bottom-color: var(--b-ottanio);
}
[data-design="b"] .rf-funnel__urgency-note {
  font-family: var(--b-font-annotation);
  font-size: var(--b-t-mono-sm);
  color: var(--b-ottone);
  letter-spacing: 0.12em;
  min-height: 20px;
  margin-bottom: var(--b-gap-tick);
}
[data-design="b"] .rf-funnel__nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--b-gap-tick);
  margin-top: var(--b-gap-cell);
  padding-top: var(--b-gap-stanza);
  border-top: 1px solid var(--b-rule);
}
[data-design="b"] .rf-funnel__btn {
  appearance: none;
  font-family: var(--b-font-annotation);
  font-size: var(--b-t-mono-sm);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  padding: 12px 22px;
  border-radius: var(--b-r-stamp);
  cursor: pointer;
  min-height: 44px;
  transition:
    background-color var(--b-dur-stamp) var(--b-ease-stamp),
    color var(--b-dur-stamp) var(--b-ease-stamp),
    border-color var(--b-dur-stamp) var(--b-ease-stamp),
    transform var(--b-dur-stamp) var(--b-ease-stamp);
}
[data-design="b"] .rf-funnel__btn--primary {
  background: var(--b-ottanio);
  color: var(--b-marmo);
  border: 1px solid var(--b-ottanio);
}
@media (hover: hover) and (pointer: fine) {
  [data-design="b"] .rf-funnel__btn--primary:hover { background: var(--b-ottanio-deep); }
}
[data-design="b"] .rf-funnel__btn--primary:active { transform: translateY(1px); }
[data-design="b"] .rf-funnel__btn--ghost {
  background: transparent;
  color: var(--b-ink);
  border: 1px solid var(--b-ink);
}
@media (hover: hover) and (pointer: fine) {
  [data-design="b"] .rf-funnel__btn--ghost:hover { background: var(--b-paper-deep); }
}
[data-design="b"] .rf-funnel__btn:disabled {
  color: var(--b-pencil-trace);
  border-color: var(--b-pencil-trace);
  cursor: not-allowed;
}
[data-design="b"] .rf-funnel__btn:focus-visible {
  outline: 2px solid var(--b-ottanio);
  outline-offset: 2px;
}
/* Done step */
[data-design="b"] .rf-funnel__step--done { text-align: center; }
[data-design="b"] .rf-funnel__stamp {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: var(--b-gap-cell) auto var(--b-gap-stanza);
  padding: 14px 28px;
  border: 2px solid var(--b-ottanio);
  color: var(--b-ottanio);
  font-family: var(--b-font-annotation);
  font-size: var(--b-t-mono-sm);
  text-transform: uppercase;
  letter-spacing: 0.24em;
  transform: rotate(-3deg);
  background: var(--b-marmo);
}
[data-design="b"] .rf-funnel__done-copy {
  font-family: var(--b-font-body);
  font-size: var(--b-t-lead);
  color: var(--b-ink-soft);
  margin: 0 auto;
  max-width: var(--b-measure);
}
/* Trust chips below funnel */
[data-design="b"] .rf-funnel__trust {
  display: flex;
  flex-wrap: wrap;
  gap: var(--b-gap-tick);
  align-items: center;
  max-width: 720px;
  margin-inline: auto;
  padding-top: var(--b-gap-stanza);
  border-top: 1px solid var(--b-rule);
}
[data-design="b"] .rf-trust-chip {
  font-family: var(--b-font-annotation);
  font-size: var(--b-t-mono-xs);
  color: var(--b-pencil);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  padding: 6px 12px;
  border: 1px solid var(--b-rule);
  border-radius: var(--b-r-tick);
  white-space: nowrap;
}
[data-design="b"] .rf-trust-phone {
  font-family: var(--b-font-annotation);
  font-size: var(--b-t-mono-sm);
  color: var(--b-ottanio);
  text-decoration: none;
  letter-spacing: 0.1em;
  padding: 6px 12px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

/* ─── 9. E4 — Ambient B (vellum portfolio drift) ────────────────── */
[data-design="b"] .rf-ambient-b {
  padding: var(--b-gap-bay) clamp(16px, 4vw, 48px);
  background: var(--b-paper-deep);
  display: grid;
  gap: var(--b-gap-rule);
}
[data-design="b"] .rf-ambient-b__head { max-width: var(--b-measure); }

[data-design="b"] .rf-vellum-stack {
  position: relative;
  width: 100%;
  max-width: 880px;
  margin: 0 auto;
  aspect-ratio: 4 / 3;
  isolation: isolate;
}
[data-design="b"] .rf-vellum {
  position: absolute;
  inset: 0;
  border: 1px solid var(--b-ink);
}
[data-design="b"] .rf-vellum--plate {
  background: var(--b-marmo);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
[data-design="b"] .rf-vellum__section {
  width: 100%;
  height: 100%;
  display: block;
}
[data-design="b"] .rf-vellum--sheet {
  background: rgba(244, 239, 230, 0.55);
  mix-blend-mode: multiply;
  display: flex;
  align-items: flex-end;
  padding: 18px 22px;
}
[data-design="b"] .rf-vellum--sheet::before {
  content: "";
  position: absolute;
  inset: 6px;
  border: 1px dashed var(--b-pencil-trace);
  pointer-events: none;
}
[data-design="b"] .rf-vellum__label {
  font-family: var(--b-font-annotation);
  font-size: var(--b-t-mono-sm);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--b-ink);
  background: var(--b-marmo);
  padding: 4px 10px;
  border: 1px solid var(--b-ink);
}
[data-design="b"] .rf-vellum--01 {
  animation: b-vellum-drift-1 16s var(--b-ease-vellum) infinite;
}
[data-design="b"] .rf-vellum--02 {
  animation: b-vellum-drift-2 19s var(--b-ease-vellum) infinite;
  animation-delay: -3s;
}
[data-design="b"] .rf-vellum--03 {
  animation: b-vellum-drift-3 23s var(--b-ease-vellum) infinite;
  animation-delay: -7s;
}
@keyframes b-vellum-drift-1 {
  0%, 100% { transform: translate(-3%, -2%) rotate(-0.6deg); opacity: 0.85; }
  50%      { transform: translate(2%, 1%)   rotate(0.4deg);  opacity: 0.55; }
}
@keyframes b-vellum-drift-2 {
  0%, 100% { transform: translate(2%, 2%)  rotate(0.5deg);  opacity: 0.7; }
  50%      { transform: translate(-2%, -1%) rotate(-0.4deg); opacity: 0.95; }
}
@keyframes b-vellum-drift-3 {
  0%, 100% { transform: translate(0%, -1%) rotate(0.2deg);  opacity: 0.6; }
  50%      { transform: translate(1%, 2%)  rotate(-0.3deg); opacity: 0.85; }
}
[data-design="b"] .rf-vellum-stack[data-paused="true"] .rf-vellum--sheet {
  animation-play-state: paused;
}

/* Systems list — section-index format */
[data-design="b"] .rf-systems-list {
  max-width: 880px;
  margin: 0 auto;
  display: grid;
  gap: 0;
}
[data-design="b"] .rf-system-item {
  display: flex;
  gap: var(--b-gap-cell);
  padding: var(--b-gap-stanza) 0;
  border-bottom: 1px solid var(--b-rule);
  align-items: start;
  transition: background-color var(--b-dur-stamp) var(--b-ease-stamp);
}
[data-design="b"] .rf-system-item:last-child { border-bottom: none; }
[data-design="b"] .rf-system-item__num {
  font-family: var(--b-font-annotation);
  font-size: var(--b-t-mono-sm);
  color: var(--b-pencil);
  letter-spacing: 0.12em;
  flex-shrink: 0;
  width: 36px;
  padding-top: 4px;
}
[data-design="b"] .rf-system-item__body { flex: 1; }
[data-design="b"] .rf-system-item__title {
  font-family: var(--b-font-display);
  font-size: var(--b-t-h3);
  letter-spacing: -0.01em;
  color: var(--b-ink);
  margin: 0 0 var(--b-gap-tick);
}
[data-design="b"] .rf-system-item__desc {
  font-family: var(--b-font-body);
  font-size: var(--b-t-body);
  color: var(--b-ink-soft);
  line-height: 1.55;
  margin: 0;
  max-width: 60ch;
}
[data-design="b"] .rf-ambient-b__cta {
  max-width: 880px;
  margin: 0 auto;
  padding-top: var(--b-gap-rule);
}

/* ─── 10. Ambient A — section-cut detail viewer ─────────────────── */
[data-design="b"] .rf-ambient-a {
  padding: var(--b-gap-bay) clamp(16px, 4vw, 48px);
  background: var(--b-paper);
  display: grid;
  gap: var(--b-gap-rule);
  grid-template-columns: minmax(0, 1fr);
}
@media (min-width: 900px) {
  [data-design="b"] .rf-ambient-a {
    grid-template-columns: 320px minmax(0, 1fr);
    align-items: start;
  }
}
[data-design="b"] .rf-ambient-a__head { max-width: var(--b-measure); }
[data-design="b"] .rf-detail {
  position: relative;
  margin: 0;
  padding: 24px;
  background: var(--b-marmo);
  border: 1px solid var(--b-ink);
  max-width: 100%;
}
[data-design="b"] .rf-detail__drawing {
  width: 100%;
  height: auto;
  max-width: 100%;
  display: block;
}
[data-design="b"] .rf-callout {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--b-font-annotation);
  font-size: var(--b-t-mono-xs);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--b-ink);
  opacity: 0;
  transition: opacity var(--b-dur-trace) var(--b-ease-pen) calc(var(--b-cb-delay, 0) * 1ms);
}
[data-design="b"] .rf-callout__leader {
  display: block;
  height: 1px;
  background: var(--b-ottone);
  width: 80px;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--b-dur-trace) var(--b-ease-pen) calc(var(--b-cb-delay, 0) * 1ms);
}
[data-design="b"] .rf-callout__pill {
  white-space: nowrap;
  padding: 2px 8px;
  background: var(--b-marmo);
  border: 1px solid var(--b-ink);
  border-radius: var(--b-r-tick);
}
[data-design="b"] .rf-callout--01 { top: 6%;   left: 4%;  --b-cb-delay: 0;   }
[data-design="b"] .rf-callout--02 { top: 26%;  right: 4%; --b-cb-delay: 220; flex-direction: row-reverse; }
[data-design="b"] .rf-callout--03 { top: 50%;  left: 4%;  --b-cb-delay: 440; }
[data-design="b"] .rf-callout--04 { bottom: 18%; right: 4%; --b-cb-delay: 660; flex-direction: row-reverse; }
[data-design="b"] .rf-callout--05 { bottom: 2%;  left: 4%;  --b-cb-delay: 880; }
[data-design="b"] .rf-callout--02 .rf-callout__leader,
[data-design="b"] .rf-callout--04 .rf-callout__leader { transform-origin: right center; }
[data-design="b"] .rf-detail.is-traced .rf-callout { opacity: 1; }
[data-design="b"] .rf-detail.is-traced .rf-callout__leader { transform: scaleX(1); }
[data-design="b"] .rf-detail.is-traced .rf-callout--03 .rf-callout__pill {
  animation: b-callout-confirm 14s var(--b-ease-vellum) infinite;
}
@keyframes b-callout-confirm {
  0%, 88%  { background: var(--b-marmo); color: var(--b-ink); }
  92%      { background: var(--b-ottanio); color: var(--b-marmo); }
  100%     { background: var(--b-marmo); color: var(--b-ink); }
}

/* ─── 11. Process section ───────────────────────────────────────── */
[data-design="b"] .rf-process {
  padding: var(--b-gap-bay) clamp(16px, 4vw, 48px);
  background: var(--b-paper-deep);
}
[data-design="b"] .rf-process__head {
  max-width: var(--b-measure);
  margin-bottom: var(--b-gap-rule);
}
[data-design="b"] .rf-process__track {
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: 720px;
  display: grid;
  gap: 0;
}
[data-design="b"] .rf-process__phase {
  display: flex;
  gap: var(--b-gap-cell);
  padding: var(--b-gap-stanza) 0;
  border-bottom: 1px solid var(--b-rule);
  align-items: start;
}
[data-design="b"] .rf-process__phase:last-child { border-bottom: none; }
[data-design="b"] .rf-process__num {
  font-family: var(--b-font-annotation);
  font-size: var(--b-t-mono-sm);
  color: var(--b-ottone);
  letter-spacing: 0.12em;
  flex-shrink: 0;
  width: 36px;
  padding-top: 4px;
}
[data-design="b"] .rf-process__content { flex: 1; }
[data-design="b"] .rf-process__title {
  font-family: var(--b-font-display);
  font-size: var(--b-t-h3);
  letter-spacing: -0.01em;
  color: var(--b-ink);
  margin: 0 0 var(--b-gap-tick);
}
[data-design="b"] .rf-process__desc {
  font-family: var(--b-font-body);
  font-size: var(--b-t-body);
  color: var(--b-ink-soft);
  line-height: 1.55;
  margin: 0;
  max-width: 60ch;
}

/* ─── 12. About section ─────────────────────────────────────────── */
[data-design="b"] .rf-about {
  padding: var(--b-gap-bay) clamp(16px, 4vw, 48px);
  background: var(--b-paper);
}
[data-design="b"] .rf-about__inner {
  display: grid;
  gap: var(--b-gap-rule);
  max-width: 1280px;
  margin: 0 auto;
}
@media (min-width: 768px) {
  [data-design="b"] .rf-about__inner {
    grid-template-columns: 1fr auto;
    align-items: start;
  }
}
[data-design="b"] .rf-about__text { max-width: var(--b-measure); }
[data-design="b"] .rf-about__trust {
  display: flex;
  flex-wrap: wrap;
  gap: var(--b-gap-tick);
  margin-top: var(--b-gap-stanza);
}
[data-design="b"] .rf-about__action {
  padding-top: 40px;
}

/* ─── 13. Footer ────────────────────────────────────────────────── */
[data-design="b"] .rf-footer {
  background: var(--b-paper-deep);
  border-top: 1px solid var(--b-rule);
  padding: var(--b-gap-rule) clamp(16px, 4vw, 48px);
}
[data-design="b"] .rf-footer__inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--b-gap-cell);
  align-items: start;
}
[data-design="b"] .rf-footer__col {
  display: flex;
  flex-direction: column;
  gap: var(--b-gap-hairline);
}
[data-design="b"] .rf-footer__col--center { align-items: center; }
[data-design="b"] .rf-footer__col--right  { align-items: flex-end; }
[data-design="b"] .rf-footer__name,
[data-design="b"] .rf-footer__license,
[data-design="b"] .rf-footer__city {
  font-family: var(--b-font-annotation);
  font-size: var(--b-t-mono-xs);
  color: var(--b-pencil);
  text-transform: uppercase;
  letter-spacing: 0.14em;
}
[data-design="b"] .rf-footer__name { color: var(--b-ink); font-size: var(--b-t-mono-sm); }
[data-design="b"] .rf-footer__dimstring {
  font-family: var(--b-font-annotation);
  font-size: var(--b-t-mono-xs);
  color: var(--b-pencil-trace);
  letter-spacing: 0.12em;
  white-space: nowrap;
}
[data-design="b"] .rf-footer__phone {
  font-family: var(--b-font-annotation);
  font-size: var(--b-t-mono-sm);
  color: var(--b-ottanio);
  text-decoration: none;
  letter-spacing: 0.1em;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}
[data-design="b"] .rf-footer__cta-link {
  font-family: var(--b-font-annotation);
  font-size: var(--b-t-mono-xs);
  color: var(--b-pencil);
  text-decoration: none;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--b-rule);
  padding-bottom: 2px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}
[data-design="b"] .rf-footer__copy {
  font-family: var(--b-font-annotation);
  font-size: var(--b-t-mono-xs);
  color: var(--b-pencil-trace);
  letter-spacing: 0.08em;
}

/* ─── 14. Content centering — all content in max-width container ── */
[data-design="b"] .rf-hero__content,
[data-design="b"] .rf-funnel__head,
[data-design="b"] .rf-funnel,
[data-design="b"] .rf-funnel__trust,
[data-design="b"] .rf-ambient-b__head,
[data-design="b"] .rf-vellum-stack,
[data-design="b"] .rf-systems-list,
[data-design="b"] .rf-ambient-b__cta,
[data-design="b"] .rf-ambient-a__head,
[data-design="b"] .rf-process__head,
[data-design="b"] .rf-process__track,
[data-design="b"] .rf-about__inner,
[data-design="b"] .rf-footer__inner {
  max-width: min(1280px, 100%);
  margin-left: auto;
  margin-right: auto;
  width: 100%;
}

/* Scroll-driven parallax: hero wash slides slightly on scroll (TRIAD-2) */
/* Implemented via CSS scroll-linked animation — GPU only, transform */
@supports (animation-timeline: scroll()) {
  [data-design="b"] .rf-hero__wash {
    animation: b-hero-wash 6s ease-in-out infinite,
               b-hero-parallax linear both;
    animation-timeline: auto, scroll(root block);
    animation-range: 0 80vh;
  }
  @keyframes b-hero-parallax {
    from { transform: translateY(0); }
    to   { transform: translateY(-32px); }
  }
}

/* ─── 15. Reduced-motion fallbacks ─────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  [data-design="b"] .rf-dimstring__line,
  [data-design="b"] .rf-dimstring__value,
  [data-design="b"] .rf-dimstring__tick {
    animation: none;
    transform: scaleX(1);
    opacity: 1;
  }
  [data-design="b"] .rf-drawer { transition: none; }
  [data-design="b"] .rf-cta { animation: none; }
  [data-design="b"] .rf-cta__corner,
  [data-design="b"] .rf-cta__arrow { transition: none; }
  [data-design="b"] .rf-hero__wash { animation: none; opacity: 0.7; }
  [data-design="b"] .rb-eave,
  [data-design="b"] .rb-rafter--l,
  [data-design="b"] .rb-rafter--r,
  [data-design="b"] .rb-ridge,
  [data-design="b"] .rb-course,
  [data-design="b"] .rb-dim-v,
  [data-design="b"] .rb-dim-h,
  [data-design="b"] .rb-dim-text {
    animation: none;
    stroke-dashoffset: 0;
    opacity: 0.6;
  }
  [data-design="b"] .rf-hero__roof-svg { animation: none; opacity: 0.85; }
  [data-design="b"] .tracciato-pointer__rule,
  [data-design="b"] .tracciato-pointer__label { animation: none; opacity: 0.7; }
  [data-design="b"] .rf-funnel__step,
  [data-design="b"] .rf-funnel__progress-fill,
  [data-design="b"] .rf-funnel__input,
  [data-design="b"] .rf-funnel__textarea,
  [data-design="b"] .rf-funnel__btn,
  [data-design="b"] .rf-choice { transition: none; }
  [data-design="b"] .rf-funnel__step[data-active="true"] {
    opacity: 1;
    transform: none;
  }
  [data-design="b"] .rf-vellum--sheet { animation: none; }
  [data-design="b"] .rf-vellum--01 { transform: translate(-3%, -2%) rotate(-0.6deg); opacity: 0.7; }
  [data-design="b"] .rf-vellum--02 { transform: translate(2%, 1%) rotate(0.4deg);   opacity: 0.7; }
  [data-design="b"] .rf-vellum--03 { transform: translate(0%, 0%) rotate(0deg);     opacity: 0.7; }
  [data-design="b"] .rf-callout,
  [data-design="b"] .rf-callout__leader { transition: none; opacity: 1; }
  [data-design="b"] .rf-callout__leader { transform: scaleX(1); }
  [data-design="b"] .rf-detail .rf-callout--03 .rf-callout__pill { animation: none; }
}

/* ─── 16. Mobile breakpoints ────────────────────────────────────── */
/* All rules scoped to .dq-design — never bare [data-design] descendant */
@media (max-width: 768px) {
  [data-design="b"].dq-design .rf-footer__inner {
    grid-template-columns: 1fr;
  }
  [data-design="b"].dq-design .rf-footer__col--center,
  [data-design="b"].dq-design .rf-footer__col--right {
    align-items: flex-start;
  }
  [data-design="b"].dq-design .rf-footer__dimstring { display: none; }
  [data-design="b"].dq-design .rf-about__inner {
    grid-template-columns: 1fr;
  }
  [data-design="b"].dq-design .rf-about__action { padding-top: 0; }
}

@media (max-width: 560px) {
  [data-design="b"].dq-design .rf-header__bar { height: 56px; }
  [data-design="b"].dq-design .rf-dimstring__value { display: none; }
  [data-design="b"].dq-design .rf-funnel__progress { flex-direction: column; align-items: flex-start; gap: 6px; }
  [data-design="b"].dq-design .rf-funnel__progress-line { width: 100%; }
  [data-design="b"].dq-design .rf-funnel__nav { flex-direction: column-reverse; align-items: stretch; }
  [data-design="b"].dq-design .rf-funnel__btn { width: 100%; }
  [data-design="b"].dq-design .rf-hero__cta-group { flex-direction: column; align-items: flex-start; }
  [data-design="b"].dq-design .rf-ambient-a { grid-template-columns: 1fr; }
  [data-design="b"].dq-design .rf-callout__leader { display: none; }
  [data-design="b"].dq-design .rf-callout--02,
  [data-design="b"].dq-design .rf-callout--04 { flex-direction: row; }
  [data-design="b"].dq-design .rf-vellum-stack { aspect-ratio: 1 / 1; }
  [data-design="b"].dq-design .rf-vellum__label { font-size: var(--b-t-mono-xs); }
}

@media (max-width: 380px) {
  [data-design="b"].dq-design .rf-logo { font-size: 18px; }
  [data-design="b"].dq-design .rf-hero__h1 { font-size: clamp(36px, 9vw, 48px); }
}

/* 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; }