/* ═══════════════════════════════════════════════════════════════════
   Massiveforge · Catenary design · Design-B slot
   Affordable Roofer Jacksonville
   All selectors scoped under [data-design="b"]
   ═══════════════════════════════════════════════════════════════════ */

/* ── 0. Token declaration ──────────────────────────────────────────── */
[data-design="b"] {
  --design-b-primary: #E9601F;

  /* color tokens */
  --cat-bg:        #F2EFE7;
  --cat-surface:   #FAF8F3;
  --cat-ink:       #1A1816;
  --cat-graphite:  #44413C;
  --cat-stone:     #6B6760;
  --cat-hairline:  #4A4742;
  --cat-mist:      #D7D2C6;
  --cat-orange:    #E9601F;
  --cat-cyan:      #5C8AA8;
  --cat-red:       #BE2D1F;
  --cat-olive:     #5F6748;

  /* typography */
  --cat-font-display: "Inter Tight", "Helvetica Neue", -apple-system, system-ui, sans-serif;
  --cat-font-body:    "Inter", -apple-system, system-ui, sans-serif;
  --cat-font-mono:    ui-monospace, "JetBrains Mono", "DIN Mono", "Roboto Mono", Menlo, monospace;

  /* spacing */
  --cat-s-bolt:    4px;
  --cat-s-rivet:   8px;
  --cat-s-stud:   12px;
  --cat-s-joist:  16px;
  --cat-s-beam:   24px;
  --cat-s-bay:    36px;
  --cat-s-span:   60px;
  --cat-s-frame:  96px;
  --cat-s-grid:  144px;

  /* motion */
  --cat-d-quick:   140ms;
  --cat-d-base:    220ms;
  --cat-d-settle:  520ms;
  --cat-d-span:     18s;
  --cat-ease-settle:   cubic-bezier(.22,.61,.36,1);
  --cat-ease-register: cubic-bezier(.5,.05,.5,1);
  --cat-ease-unfurl:   cubic-bezier(.16,1,.3,1);

  /* radius */
  --cat-r-none: 0px;
  --cat-r-edge: 2px;
  --cat-r-pill: 999px;

  /* elevation */
  --cat-elev-flat: none;
  --cat-elev-ring: inset 0 0 0 1px var(--cat-hairline);
  --cat-elev-lift: 0 1px 0 0 var(--cat-hairline),
                   0 0 0 1px color-mix(in oklab, var(--cat-hairline), transparent 50%);
}

/* ── 1. Article / layout shell ─────────────────────────────────────── */
[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 {
  background: var(--cat-bg);
  color: var(--cat-ink);
  font-family: var(--cat-font-body);
  font-size: 17px;
  line-height: 1.6;
}

/* ── 2. E1 — ANIMATED MINIMALIST HEADER ────────────────────────────── */
[data-design="b"] .rf-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--cat-bg);
  border-bottom: 1px solid var(--cat-mist);
}

[data-design="b"] .rf-chain {
  position: absolute;
  inset: 0 0 auto 0;
  height: 100%;
  pointer-events: none;
  overflow: hidden;
}
[data-design="b"] .rf-chain svg { width: 100%; height: 100%; display: block; }

[data-design="b"] .rf-chain__curve {
  fill: none;
  stroke: var(--cat-hairline);
  stroke-width: .75;
  vector-effect: non-scaling-stroke;
  transform-origin: 50% 0%;
  transform-box: fill-box;
  animation: cat-chain-settle var(--cat-d-span) var(--cat-ease-settle) infinite alternate;
}
[data-design="b"] .rf-chain__curve--2 {
  stroke: color-mix(in oklab, var(--cat-hairline), transparent 35%);
  animation-duration: 22s;
  animation-delay: -6s;
}
[data-design="b"] .rf-chain__curve--3 {
  stroke: color-mix(in oklab, var(--cat-hairline), transparent 60%);
  animation-duration: 31s;
  animation-delay: -12s;
}
[data-design="b"] .rf-chain__pin { fill: var(--cat-orange); }

@keyframes cat-chain-settle {
  0%   { transform: scaleY(0.96) translateY(0); }
  50%  { transform: scaleY(1.04) translateY(2px); }
  100% { transform: scaleY(0.98) translateY(-1px); }
}

[data-design="b"] .rf-header__bar {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--cat-s-stud) clamp(16px, 4vw, 36px);
  max-width: 1440px;
  margin-inline: auto;
}

[data-design="b"] .rf-logo { text-decoration: none; color: var(--cat-ink); }
[data-design="b"] .rf-logo__mark {
  font-family: var(--cat-font-display);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

[data-design="b"] .rf-burger {
  background: transparent;
  border: 1px solid var(--cat-hairline);
  width: 44px;
  height: 44px;
  padding: 0;
  cursor: pointer;
  display: grid;
  place-content: center;
  gap: 4px;
  border-radius: var(--cat-r-edge);
  transition: border-color var(--cat-d-quick) var(--cat-ease-register);
}
[data-design="b"] .rf-burger span {
  display: block;
  width: 18px;
  height: 1px;
  background: var(--cat-ink);
  transition:
    transform var(--cat-d-base) var(--cat-ease-register),
    opacity var(--cat-d-quick) linear;
}
@media (hover: hover) and (pointer: fine) {
  [data-design="b"] .rf-burger:hover { border-color: var(--cat-orange); }
}
[data-design="b"] .rf-burger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}
[data-design="b"] .rf-burger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
[data-design="b"] .rf-burger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

/* Drawer */
[data-design="b"] .rf-drawer {
  position: fixed;
  inset: 64px 0 0 0;
  background: var(--cat-bg);
  border-top: 1px solid var(--cat-hairline);
  z-index: 39;
  overflow-y: auto;
}
[data-design="b"] .rf-drawer[hidden] { display: none; }
[data-design="b"] .rf-drawer__inner {
  max-width: 1440px;
  margin-inline: auto;
  padding: var(--cat-s-frame) clamp(16px, 4vw, 36px);
  display: flex;
  flex-direction: column;
  gap: var(--cat-s-beam);
}
[data-design="b"] .rf-drawer a {
  font-family: var(--cat-font-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: clamp(22px, 4.4vw, 32px);
  color: var(--cat-ink);
  text-decoration: none;
  padding: var(--cat-s-stud) 0;
  border-bottom: 1px solid var(--cat-mist);
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: var(--cat-s-beam);
  align-items: baseline;
}
[data-design="b"] .rf-drawer a::before {
  content: attr(data-num);
  color: var(--cat-orange);
  font-size: .72em;
}
[data-design="b"] .rf-drawer__phone,
[data-design="b"] .rf-drawer__cta {
  font-size: clamp(16px, 3vw, 22px);
}
[data-design="b"] .rf-drawer__phone::before,
[data-design="b"] .rf-drawer__cta::before { content: ""; }
[data-design="b"] .rf-drawer__phone { color: var(--cat-graphite); }
[data-design="b"] .rf-drawer__cta {
  background: var(--cat-orange);
  color: var(--cat-bg);
  padding: var(--cat-s-stud) var(--cat-s-beam);
  border-radius: var(--cat-r-edge);
  border-bottom: none;
  display: inline-flex;
  margin-top: var(--cat-s-stud);
}
[data-design="b"] .rf-drawer__cta::before { content: ""; display: none; }

/* ── 3. E3 + HERO — course-lay animated backdrop ────────────────────── */
[data-design="b"] .rf-hero {
  position: relative;
  isolation: isolate;
  min-height: clamp(520px, 75vh, 840px);
  display: flex;
  align-items: center;
  background: var(--cat-bg);
  overflow: hidden;
}

/* Backdrop — positioned absolutely, behind text (z:0) */
[data-design="b"] .rf-hero__backdrop {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
[data-design="b"] .rf-hero__chain-svg {
  width: 100%;
  height: 100%;
  display: block;
}

/* Warm-tone wash */
[data-design="b"] .rf-hero__wash {
  fill: color-mix(in oklab, var(--cat-bg), #C4A882 28%);
  opacity: 0.45;
  animation: cat-hero-wash-breathe 14s var(--cat-ease-settle) infinite alternate;
}
@keyframes cat-hero-wash-breathe {
  0%   { opacity: 0.35; }
  50%  { opacity: 0.55; }
  100% { opacity: 0.40; }
}

/* Principal-stress isobars in hero (design ambient grammar) */
[data-design="b"] .rf-hero__isobar {
  fill: none;
  stroke: var(--cat-cyan);
  stroke-width: .8;
  vector-effect: non-scaling-stroke;
  stroke-dasharray: 5 8;
  opacity: 0.28;
  animation: cat-hero-isobar-flow 18s linear infinite;
}
[data-design="b"] .rhi--0 { animation-delay: 0s; }
[data-design="b"] .rhi--1 { animation-delay: -3s; opacity: 0.22; }
[data-design="b"] .rhi--2 { animation-delay: -7s; opacity: 0.18; }
[data-design="b"] .rhi--3 { animation-delay: -11s; opacity: 0.14; }
[data-design="b"] .rhi--4 { animation-delay: -15s; opacity: 0.10; }

@keyframes cat-hero-isobar-flow {
  0%   { stroke-dashoffset: 0;   transform: translateX(0); }
  50%  { stroke-dashoffset: -50; transform: translateX(-16px); }
  100% { stroke-dashoffset: -100; transform: translateX(0); }
}

/* Shingle course lines — draw in (scaleX from 0 → 1, transform-origin left) */
[data-design="b"] .rf-hero__course {
  stroke: var(--cat-hairline);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
  opacity: 0.5;
  transform-origin: left center;
  transform-box: fill-box;
  animation: cat-course-draw 8s var(--cat-ease-unfurl) forwards;
}
[data-design="b"] .rh-course--1 { animation-delay: 0.0s; }
[data-design="b"] .rh-course--2 { animation-delay: 0.4s; opacity: 0.45; }
[data-design="b"] .rh-course--3 { animation-delay: 0.8s; opacity: 0.40; }
[data-design="b"] .rh-course--4 { animation-delay: 1.2s; opacity: 0.35; }
[data-design="b"] .rh-course--5 { animation-delay: 1.6s; opacity: 0.30; }

@keyframes cat-course-draw {
  from { transform: scaleX(0.05); opacity: 0; }
  to   { transform: scaleX(1);    opacity: inherit; }
}

/* Ridge line — draws in last */
[data-design="b"] .rf-hero__ridge {
  stroke: var(--cat-orange);
  stroke-width: 1.5;
  vector-effect: non-scaling-stroke;
  opacity: 0.7;
  transform-origin: left center;
  transform-box: fill-box;
  animation: cat-ridge-draw 10s var(--cat-ease-unfurl) forwards;
  animation-delay: 2s;
}
@keyframes cat-ridge-draw {
  0%   { transform: scaleX(0); opacity: 0; }
  10%  { opacity: 0.7; }
  100% { transform: scaleX(1); opacity: 0.7; }
}

/* Catenary spans hanging from the roofline */
[data-design="b"] .rf-hero__cat-span {
  fill: none;
  stroke: var(--cat-hairline);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
  transform-origin: 50% 0%;
  transform-box: fill-box;
  animation: cat-chain-settle 24s var(--cat-ease-settle) infinite alternate;
}
[data-design="b"] .rh-cat--1 { opacity: 0.5; animation-delay: -4s; }
[data-design="b"] .rh-cat--2 { opacity: 0.3; animation-duration: 29s; animation-delay: -9s; }

[data-design="b"] .rf-hero__cat-pin { fill: var(--cat-orange); opacity: 0.7; }

/* Hero content layer — ABOVE backdrop */
[data-design="b"] .rf-hero__content {
  position: relative;
  z-index: 10;
  width: 100%;
}
[data-design="b"] .rf-hero__inner {
  max-width: 1280px;
  margin-inline: auto;
  padding: var(--cat-s-frame) clamp(20px, 5vw, 60px);
}

[data-design="b"] .rf-hero__eyebrow {
  font-family: var(--cat-font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cat-orange);
  margin: 0 0 var(--cat-s-stud);
  opacity: 1;
}
[data-design="b"] .rf-hero__headline {
  font-family: var(--cat-font-display);
  font-size: clamp(36px, 7vw, 76px);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.05;
  color: var(--cat-ink);
  margin: 0 0 var(--cat-s-beam);
  max-width: 18ch;
  opacity: 1;
}
[data-design="b"] .rf-hero__subtitle {
  font-family: var(--cat-font-body);
  font-size: clamp(16px, 2vw, 20px);
  line-height: 1.5;
  color: var(--cat-graphite);
  margin: 0 0 var(--cat-s-stud);
  max-width: 50ch;
  opacity: 1;
}
[data-design="b"] .rf-hero__proof {
  font-family: var(--cat-font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cat-stone);
  margin: 0 0 var(--cat-s-span);
  opacity: 1;
}

/* CTA group */
[data-design="b"] .rf-hero__cta-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--cat-s-beam);
  opacity: 1;
}
[data-design="b"] .rf-hero__phone-contact {
  font-family: var(--cat-font-mono);
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--cat-graphite);
  text-decoration: none;
  padding: 10px 16px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--cat-mist);
  border-radius: var(--cat-r-edge);
  opacity: 1;
}
@media (hover: hover) and (pointer: fine) {
  [data-design="b"] .rf-hero__phone-contact:hover {
    border-color: var(--cat-hairline);
    color: var(--cat-ink);
  }
}

/* ── 4. E2 — ANIMATED CTA (tensor) ─────────────────────────────────── */
[data-design="b"] .rf-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--cat-s-stud);
  padding: 14px 22px;
  min-height: 44px;
  background: var(--cat-orange);
  color: var(--cat-bg);
  font-family: var(--cat-font-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  border: none;
  border-radius: var(--cat-r-edge);
  position: relative;
  animation: cat-cta-breath 4.5s var(--cat-ease-settle) infinite;
  will-change: transform;
  transition:
    background-color var(--cat-d-quick) var(--cat-ease-register);
}
[data-design="b"] .rf-cta::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background: var(--cat-ink);
  opacity: 0;
  transition: opacity var(--cat-d-quick) linear;
}
[data-design="b"] .rf-cta:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--cat-orange), transparent 70%);
}
[data-design="b"] .rf-cta:active {
  transform: translateY(1px);
}
[data-design="b"] .rf-cta:active::after { opacity: 1; }
@media (hover: hover) and (pointer: fine) {
  [data-design="b"] .rf-cta:hover {
    background: color-mix(in oklab, var(--cat-orange), black 8%);
  }
  [data-design="b"] .rf-cta:hover .rf-cta__cable-line {
    transform: translateY(-1px);
  }
}

@keyframes cat-cta-breath {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.012); }
}

[data-design="b"] .rf-cta__cable {
  width: 44px;
  height: 16px;
  overflow: visible;
  flex-shrink: 0;
}
[data-design="b"] .rf-cta__cable-line,
[data-design="b"] .rf-cta__cable-head {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform var(--cat-d-base) var(--cat-ease-unfurl);
}
[data-design="b"] .rf-cta__label { opacity: 1; }

[data-design="b"] .rf-cta--repeat {
  margin-top: var(--cat-s-span);
}

/* ── 5. E6 — POINTER (dimension-line) ──────────────────────────────── */
[data-design="b"] .cat-pointer {
  display: flex;
  justify-content: center;
  padding: clamp(40px, 8vw, 80px) 16px clamp(56px, 10vw, 96px);
  color: var(--cat-graphite);
}
[data-design="b"] .cat-pointer__hit {
  position: relative;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: inherit;
  min-height: 44px;
  min-width: 44px;
  justify-content: center;
}
[data-design="b"] .cat-pointer__tick {
  display: block;
  width: 16px;
  height: 1px;
  background: currentColor;
  opacity: 0.7;
}
[data-design="b"] .cat-pointer__rule {
  display: block;
  width: 1px;
  height: 56px;
  background: currentColor;
  transform-origin: top center;
  animation: cat-pointer-extend 5s ease-in-out infinite;
}
[data-design="b"] .cat-pointer__label {
  font-family: var(--cat-font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  opacity: 0.7;
  animation: cat-pointer-stamp 5s ease-in-out infinite;
}
@keyframes cat-pointer-extend {
  0%, 100% { transform: scaleY(0.4); opacity: 0.4; }
  50%      { transform: scaleY(1);   opacity: 0.85; }
}
@keyframes cat-pointer-stamp {
  0%, 30%, 100% { opacity: 0.2; }
  50%, 70%      { opacity: 0.85; }
}

/* ── 6. E5 — FUNNEL ─────────────────────────────────────────────────── */
[data-design="b"] .rf-interactive {
  background: var(--cat-bg);
  padding-block: var(--cat-s-frame);
  border-top: 1px solid var(--cat-hairline);
}
[data-design="b"] .rf-funnel__head,
[data-design="b"] .rf-funnel,
[data-design="b"] .rf-funnel__beam {
  max-width: 880px;
  margin-inline: auto;
  padding-inline: clamp(16px, 4vw, 36px);
}
[data-design="b"] .rf-funnel__sub {
  font-family: var(--cat-font-body);
  font-size: 18px;
  color: var(--cat-graphite);
  margin: 0 0 var(--cat-s-span);
  max-width: 56ch;
}

/* Progress beam */
[data-design="b"] .rf-funnel__beam {
  position: relative;
  height: 8px;
  background: var(--cat-mist);
  margin-bottom: var(--cat-s-span);
  border-radius: var(--cat-r-edge);
}
[data-design="b"] .rf-beam__fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 100%;
  transform: scaleX(0);
  transform-origin: left;
  background: var(--cat-orange);
  transition: transform var(--cat-d-settle) var(--cat-ease-settle);
  border-radius: var(--cat-r-edge);
}
[data-design="b"] .rf-beam__ticks {
  position: absolute;
  inset: 16px 0 auto 0;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--cat-font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--cat-stone);
}
[data-design="b"] .rf-beam__ticks li {
  position: relative;
  padding-top: 8px;
  padding-left: 4px;
  border-top: 1px solid var(--cat-hairline);
}
[data-design="b"] .rf-beam__ticks li span {
  color: var(--cat-orange);
  margin-right: 4px;
}

/* Funnel form container */
[data-design="b"] .rf-funnel {
  position: relative;
  border: 1px solid var(--cat-hairline);
  background: var(--cat-surface);
  border-radius: var(--cat-r-edge);
  padding: var(--cat-s-span);
  min-height: 360px;
  overflow: hidden;
}

/* Steps */
[data-design="b"] .rf-step {
  border: 0;
  padding: 0;
  margin: 0;
  display: none;
  animation: cat-step-unfurl var(--cat-d-settle) var(--cat-ease-unfurl) both;
}
[data-design="b"] .rf-step.is-active { display: block; }
[data-design="b"] .rf-step.is-leaving {
  display: block;
  animation: cat-step-settle var(--cat-d-settle) var(--cat-ease-settle) both;
}
@keyframes cat-step-unfurl {
  from { opacity: 0; transform: translateY(-12px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes cat-step-settle {
  from { opacity: 1; transform: translateY(0); }
  to   { opacity: 0; transform: translateY(18px); }
}

[data-design="b"] .rf-step__label {
  font-family: var(--cat-font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cat-orange);
  padding: 0;
}
[data-design="b"] .rf-step__q {
  font-family: var(--cat-font-display);
  font-size: clamp(22px, 3vw, 28px);
  color: var(--cat-ink);
  margin: var(--cat-s-stud) 0 var(--cat-s-beam);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

/* Options (radio chips) */
[data-design="b"] .rf-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--cat-s-stud);
  margin-bottom: var(--cat-s-beam);
}
[data-design="b"] .rf-options--col { grid-template-columns: 1fr; }
[data-design="b"] .rf-options label {
  display: flex;
  align-items: center;
  gap: var(--cat-s-stud);
  padding: var(--cat-s-stud) var(--cat-s-joist);
  border: 1px solid var(--cat-hairline);
  border-radius: var(--cat-r-edge);
  font-size: 15px;
  cursor: pointer;
  color: var(--cat-ink);
  min-height: 44px;
  transition:
    border-color var(--cat-d-quick) var(--cat-ease-register),
    background-color var(--cat-d-quick) linear;
}
@media (hover: hover) and (pointer: fine) {
  [data-design="b"] .rf-options label:hover { border-color: var(--cat-orange); }
}
[data-design="b"] .rf-options input[type="radio"] {
  accent-color: var(--cat-orange);
}
[data-design="b"] .rf-options label:has(input:checked) {
  border-color: var(--cat-orange);
  background: color-mix(in oklab, var(--cat-orange), transparent 92%);
}

/* Urgency note */
[data-design="b"] .rf-urgency-note {
  font-size: 14px;
  color: var(--cat-graphite);
  padding: var(--cat-s-stud) var(--cat-s-joist);
  border-left: 2px solid var(--cat-orange);
  margin: var(--cat-s-stud) 0 var(--cat-s-beam);
  background: color-mix(in oklab, var(--cat-orange), transparent 95%);
}
[data-design="b"] .rf-urgency-note a { color: var(--cat-orange); }

/* Member inputs */
[data-design="b"] .rf-members {
  display: grid;
  gap: var(--cat-s-joist);
  margin-bottom: var(--cat-s-beam);
}
[data-design="b"] .rf-member {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
[data-design="b"] .rf-member--full { grid-column: 1 / -1; }
[data-design="b"] .rf-member span {
  font-family: var(--cat-font-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 11px;
  color: var(--cat-stone);
}
[data-design="b"] .rf-member input,
[data-design="b"] .rf-member textarea {
  padding: 12px 14px;
  background: transparent;
  color: var(--cat-ink);
  font-family: var(--cat-font-body);
  font-size: 16px;
  border: 1px solid var(--cat-hairline);
  border-radius: var(--cat-r-edge);
  outline: none;
  transition:
    border-color var(--cat-d-quick) var(--cat-ease-register),
    box-shadow var(--cat-d-quick) linear;
  resize: vertical;
}
[data-design="b"] .rf-member input:focus-visible,
[data-design="b"] .rf-member textarea:focus-visible {
  border-color: var(--cat-orange);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--cat-orange), transparent 70%);
}

/* Tensors (buttons) */
[data-design="b"] .rf-step__nav {
  display: flex;
  justify-content: space-between;
  gap: var(--cat-s-stud);
  margin-top: var(--cat-s-beam);
}
[data-design="b"] .rf-step__nav:has(.rf-tensor:only-child) {
  justify-content: flex-end;
}
[data-design="b"] .rf-tensor {
  font-family: var(--cat-font-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 12px;
  padding: 12px 18px;
  min-height: 44px;
  min-width: 44px;
  border-radius: var(--cat-r-edge);
  cursor: pointer;
  border: 1px solid var(--cat-hairline);
  background: transparent;
  color: var(--cat-ink);
  transition:
    background-color var(--cat-d-quick) var(--cat-ease-register),
    border-color var(--cat-d-quick) var(--cat-ease-register),
    color var(--cat-d-quick) var(--cat-ease-register),
    box-shadow var(--cat-d-quick) var(--cat-ease-register),
    transform var(--cat-d-quick) var(--cat-ease-register);
}
[data-design="b"] .rf-tensor--primary {
  background: var(--cat-orange);
  color: var(--cat-bg);
  border-color: var(--cat-orange);
}
@media (hover: hover) and (pointer: fine) {
  [data-design="b"] .rf-tensor--primary:hover {
    background: color-mix(in oklab, var(--cat-orange), black 8%);
  }
  [data-design="b"] .rf-tensor--secondary:hover {
    border-color: var(--cat-orange);
    color: var(--cat-orange);
  }
}
[data-design="b"] .rf-tensor:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--cat-orange), transparent 70%);
}
[data-design="b"] .rf-tensor:active { transform: translateY(1px); }

/* Confirmation panel */
[data-design="b"] .rf-funnel__confirm {
  color: var(--cat-graphite);
  font-size: 16px;
  margin: var(--cat-s-stud) 0 var(--cat-s-beam);
}
[data-design="b"] .rf-funnel__confirm a { color: var(--cat-orange); }
[data-design="b"] .rf-summary {
  margin: var(--cat-s-beam) 0 0;
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: var(--cat-s-stud) var(--cat-s-beam);
  border-top: 1px solid var(--cat-hairline);
  padding-top: var(--cat-s-beam);
}
[data-design="b"] .rf-summary dt {
  font-family: var(--cat-font-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 11px;
  color: var(--cat-stone);
}
[data-design="b"] .rf-summary dd {
  font-family: var(--cat-font-mono);
  font-size: 14px;
  color: var(--cat-ink);
  margin: 0;
}

/* Trust line below funnel */
[data-design="b"] .rf-funnel__trust {
  max-width: 880px;
  margin: var(--cat-s-beam) auto 0;
  padding-inline: clamp(16px, 4vw, 36px);
}
[data-design="b"] .rf-trust-line {
  font-family: var(--cat-font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--cat-stone);
  border-top: 1px solid var(--cat-mist);
  padding-top: var(--cat-s-beam);
}

/* ── 7. Ambient A — isobar section (Roof Systems) ───────────────────── */
[data-design="b"] .rf-ambient-a {
  position: relative;
  isolation: isolate;
  padding-block: var(--cat-s-frame);
  background: var(--cat-bg);
  overflow: hidden;
  border-top: 1px solid var(--cat-mist);
}
[data-design="b"] .rf-ambient-a__motion {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.35;
  pointer-events: none;
}
[data-design="b"] .rf-ambient-a__motion svg {
  width: 100%;
  height: 100%;
  display: block;
}
[data-design="b"] .rf-isobar {
  fill: none;
  stroke: var(--cat-cyan);
  stroke-width: .9;
  vector-effect: non-scaling-stroke;
  stroke-dasharray: 4 6;
  animation: cat-isobar-flow 16s linear infinite;
  animation-delay: calc(var(--i, 0) * -2s);
  animation-play-state: paused;
}
[data-design="b"] .rf-ambient-a.is-live .rf-isobar {
  animation-play-state: running;
}
@keyframes cat-isobar-flow {
  0%   { stroke-dashoffset: 0;   transform: translateX(0); }
  50%  { stroke-dashoffset: -40; transform: translateX(-12px); }
  100% { stroke-dashoffset: -80; transform: translateX(0); }
}

[data-design="b"] .rf-ambient-a__content {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: clamp(16px, 4vw, 36px);
}

/* Shared section typography */
[data-design="b"] .rf-eyebrow {
  font-family: var(--cat-font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cat-orange);
  margin: 0 0 var(--cat-s-stud);
}
[data-design="b"] .rf-section-h {
  font-family: var(--cat-font-display);
  font-size: clamp(36px, 6vw, 52px);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.05;
  color: var(--cat-ink);
  margin: 0 0 var(--cat-s-span);
  max-width: 22ch;
}
[data-design="b"] .rf-methods {
  display: flex;
  flex-direction: column;
}
[data-design="b"] .rf-method {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: var(--cat-s-beam);
  padding: var(--cat-s-beam) 0;
  border-top: 1px solid var(--cat-hairline);
  transition: border-color var(--cat-d-base) var(--cat-ease-register);
}
[data-design="b"] .rf-method:last-child {
  border-bottom: 1px solid var(--cat-hairline);
}
@media (hover: hover) and (pointer: fine) {
  [data-design="b"] .rf-method:hover { border-top-color: var(--cat-orange); }
}
[data-design="b"] .rf-method__num {
  font-family: var(--cat-font-mono);
  color: var(--cat-orange);
  font-size: 26px;
  letter-spacing: 0.04em;
  display: block;
}
[data-design="b"] .rf-method h3 {
  font-family: var(--cat-font-display);
  font-size: 26px;
  font-weight: 500;
  margin: 0 0 var(--cat-s-stud);
  color: var(--cat-ink);
  letter-spacing: -0.01em;
}
[data-design="b"] .rf-method p {
  margin: 0;
  color: var(--cat-graphite);
  max-width: 60ch;
  line-height: 1.5;
  font-size: 16px;
}

/* ── 8. Before & After section ──────────────────────────────────────── */
[data-design="b"] .rf-before-after {
  background: var(--cat-surface);
  padding-block: var(--cat-s-frame);
  border-block: 1px solid var(--cat-mist);
}
[data-design="b"] .rf-before-after__inner {
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: clamp(16px, 4vw, 36px);
}
[data-design="b"] .rf-ba__note {
  color: var(--cat-graphite);
  font-size: 16px;
  max-width: 60ch;
  margin: 0 0 var(--cat-s-span);
}
[data-design="b"] .rf-ba__types {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--cat-s-bay);
  margin-bottom: var(--cat-s-span);
}
[data-design="b"] .rf-ba__type {
  padding: var(--cat-s-beam);
  border: 1px solid var(--cat-hairline);
  border-radius: var(--cat-r-edge);
}
[data-design="b"] .rf-ba__type p {
  color: var(--cat-graphite);
  font-size: 15px;
  margin: var(--cat-s-stud) 0 0;
  line-height: 1.5;
}

/* ── 9. Ambient B — soap-film membrane (Process) ────────────────────── */
[data-design="b"] .rf-ambient-b {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: var(--cat-s-frame);
  background: var(--cat-bg);
  border-block: 1px solid var(--cat-mist);
}
[data-design="b"] .rf-ambient-b__content {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: clamp(16px, 4vw, 36px);
}
[data-design="b"] .rf-studio {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: var(--cat-s-span);
  align-items: start;
}
[data-design="b"] .rf-studio__copy {
  font-family: var(--cat-font-body);
  font-size: 18px;
  line-height: 1.6;
  color: var(--cat-graphite);
  max-width: 60ch;
}
[data-design="b"] .rf-studio__copy p + p { margin-top: var(--cat-s-beam); }
[data-design="b"] .rf-data-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--cat-hairline);
  margin: 0;
}
[data-design="b"] .rf-data-list > div {
  display: grid;
  grid-template-columns: 1fr auto;
  padding: var(--cat-s-stud) 0;
  border-bottom: 1px solid var(--cat-mist);
}
[data-design="b"] .rf-data-list dt {
  font-family: var(--cat-font-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 11px;
  color: var(--cat-stone);
}
[data-design="b"] .rf-data-list dd {
  font-family: var(--cat-font-mono);
  font-size: 16px;
  color: var(--cat-ink);
  margin: 0;
  font-variant-numeric: tabular-nums;
}
[data-design="b"] .rf-ambient-b__motion {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.18;
  pointer-events: none;
}
[data-design="b"] .rf-ambient-b__motion svg {
  width: 100%;
  height: 100%;
  display: block;
}
[data-design="b"] .rf-mb {
  fill: none;
  stroke: var(--cat-ink);
  stroke-width: .75;
  vector-effect: non-scaling-stroke;
}
[data-design="b"] .rf-mb__node { fill: var(--cat-ink); }
[data-design="b"] .rf-mb__node--accent { fill: var(--cat-orange); }
[data-design="b"] .rf-ambient-b.is-live .rf-membrane {
  animation: cat-membrane-breathe 20s var(--cat-ease-settle) infinite alternate;
  transform-origin: center;
}
@keyframes cat-membrane-breathe {
  0%   { transform: translateY(0) scale(1); }
  33%  { transform: translateY(-6px) scale(1.008); }
  66%  { transform: translateY(3px) scale(0.996); }
  100% { transform: translateY(-2px) scale(1.004); }
}

/* ── 10. Scroll-driven parallax (TRIAD-2) ───────────────────────────── */
/* Hero backdrop scroll-parallax — native scroll-driven animation */
@supports (animation-timeline: scroll()) {
  [data-design="b"] .rf-hero__backdrop {
    animation: cat-hero-parallax linear both;
    animation-timeline: scroll(root block);
    animation-range: 0px 600px;
  }
  @keyframes cat-hero-parallax {
    from { transform: translateY(0); }
    to   { transform: translateY(80px); }
  }
  /* Isobars in hero also shift at a different rate */
  [data-design="b"] .rf-hero__isobars {
    animation: cat-isobar-parallax linear both;
    animation-timeline: scroll(root block);
    animation-range: 0px 600px;
  }
  @keyframes cat-isobar-parallax {
    from { transform: translateY(0); }
    to   { transform: translateY(40px); }
  }
}

/* ── 11. FOOTER ─────────────────────────────────────────────────────── */
[data-design="b"] .rf-footer {
  background: var(--cat-surface);
  border-top: 1px solid var(--cat-hairline);
  padding-block: var(--cat-s-frame);
}
[data-design="b"] .rf-footer__beam-line {
  height: 1px;
  background: var(--cat-hairline);
  max-width: 1200px;
  margin: 0 auto var(--cat-s-span);
}
[data-design="b"] .rf-footer__inner {
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: clamp(16px, 4vw, 36px);
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--cat-s-span);
}
[data-design="b"] .rf-footer__firm {
  font-family: var(--cat-font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--cat-ink);
  margin: 0 0 var(--cat-s-stud);
}
[data-design="b"] .rf-footer__license {
  font-family: var(--cat-font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cat-orange);
  margin: 0 0 var(--cat-s-stud);
}
[data-design="b"] .rf-footer__area {
  font-family: var(--cat-font-body);
  font-size: 14px;
  color: var(--cat-graphite);
  margin: 0;
  line-height: 1.6;
}
[data-design="b"] .rf-footer__phone {
  display: block;
  font-family: var(--cat-font-mono);
  font-size: 18px;
  color: var(--cat-ink);
  text-decoration: none;
  margin-bottom: var(--cat-s-beam);
}
@media (hover: hover) and (pointer: fine) {
  [data-design="b"] .rf-footer__phone:hover { color: var(--cat-orange); }
}
[data-design="b"] .rf-footer__cta {
  animation: none; /* no breath on footer repeat */
}
[data-design="b"] .rf-footer__stamp {
  font-family: var(--cat-font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--cat-stone);
  margin: 0 0 var(--cat-s-stud);
}
[data-design="b"] .rf-footer__note {
  font-size: 13px;
  color: var(--cat-stone);
  margin: 0;
}

/* ── 12. Responsive breakpoints ─────────────────────────────────────── */
@media (max-width: 768px) {
  [data-design="b"] .rf-studio { grid-template-columns: 1fr; gap: var(--cat-s-beam); }
  [data-design="b"] .rf-method { grid-template-columns: 1fr; gap: var(--cat-s-stud); }
  [data-design="b"] .rf-method__num { font-size: 20px; }
  [data-design="b"] .rf-footer__inner { grid-template-columns: 1fr; gap: var(--cat-s-beam); }
  [data-design="b"] .rf-members { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  [data-design="b"] .rf-header__bar { padding-block: 10px; }
  [data-design="b"] .rf-logo__mark  { font-size: 16px; }
  [data-design="b"] .rf-drawer      { inset: 56px 0 0 0; }
  [data-design="b"] .rf-options     { grid-template-columns: 1fr; }
  [data-design="b"] .rf-funnel      { padding: var(--cat-s-beam); min-height: 320px; }
  [data-design="b"] .rf-beam__ticks { font-size: 8px; }
  [data-design="b"] .rf-hero__inner { padding: var(--cat-s-beam) clamp(16px, 5vw, 24px); }
}

@media (max-width: 390px) {
  [data-design="b"] .rf-hero__cta-group { flex-direction: column; align-items: flex-start; }
  [data-design="b"] .rf-cta { width: 100%; justify-content: center; }
}

/* ── 13. Reduced motion ──────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  [data-design="b"] .rf-chain__curve              { animation: none; }
  [data-design="b"] .rf-burger span               { transition: none; }
  [data-design="b"] .rf-hero__wash                { animation: none; }
  [data-design="b"] .rf-hero__isobar              { animation: none; }
  [data-design="b"] .rf-hero__course              { animation: none; transform: scaleX(1); }
  [data-design="b"] .rf-hero__ridge               { animation: none; transform: scaleX(1); }
  [data-design="b"] .rf-hero__cat-span            { animation: none; }
  [data-design="b"] .rf-isobar                    { animation: none; transform: none; }
  [data-design="b"] .rf-ambient-b.is-live .rf-membrane { animation: none; }
  [data-design="b"] .rf-cta                       { animation: none; }
  [data-design="b"] .rf-cta__cable-line,
  [data-design="b"] .rf-cta__cable-head           { transition: none; }
  [data-design="b"] .rf-step,
  [data-design="b"] .rf-step.is-leaving           { animation: none; }
  [data-design="b"] .rf-beam__fill                { transition: none; }
  [data-design="b"] .cat-pointer__rule            { animation: none; opacity: 0.7; }
  [data-design="b"] .cat-pointer__label           { animation: none; opacity: 0.7; }
  [data-design="b"] .rf-hero__backdrop            { animation: none; }
  [data-design="b"] .rf-hero__isobars             { animation: none; }
}

/* 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; }