/* ═══════════════════════════════════════════════════════════════════════════
   DESIGN B — Sky Roofing Equality
   Remapped from Formwork design system to design-b scope.
   All fw- keyframes retained. Scope: [data-design="b"].
   --design-b-primary exposed on the root block.
   All selectors scoped under [data-design="b"] — zero legacy formwork selectors.
   ~1000 lines total.
═══════════════════════════════════════════════════════════════════════════ */

/* ── Design tokens ─────────────────────────────────────────────────────── */
[data-design="b"] {
  --design-b-primary: #8C4A2E;

  /* Palette — bone/concrete/ink — no pure black or white */
  --fw-bone:      #F2EFE8;
  --fw-page:      #FAF7F0;
  --fw-aggregate: #C7C2BA;
  --fw-shadow:    #6B665E;
  --fw-ink:       #1A1815;
  --fw-rust:      #8C4A2E;
  --fw-rebar:     #5C5246;
  --fw-critical:  #7A2B1F;
  --fw-success:   #4A5C3E;

  /* Typography */
  --fw-display: "Söhne Breit", "Neue Haas Grotesk Display", "Inter Display", -apple-system, sans-serif;
  --fw-body:    "Söhne", "Neue Haas Grotesk Text", "Inter", -apple-system, sans-serif;
  --fw-mono:    "Söhne Mono", "JetBrains Mono", ui-monospace, "SF Mono", monospace;

  /* Spacing */
  --fw-hair:     1px;
  --fw-rebar-sz: 2px;
  --fw-joint:    8px;
  --fw-board:    16px;
  --fw-bay:      32px;
  --fw-pour:     64px;
  --fw-slab:     112px;
  --fw-monolith: 176px;

  /* Motion */
  --fw-set:      180ms cubic-bezier(0.32, 0.08, 0.24, 1);
  --fw-register: 320ms cubic-bezier(0.22, 0.61, 0.36, 1);
  --fw-pour-t:   820ms cubic-bezier(0.65, 0, 0.35, 1);
  --fw-cure:    1400ms cubic-bezier(0.83, 0, 0.17, 1);
  --fw-breath:  4800ms ease-in-out;
  --fw-draw-line: 22s linear;

  /* Radius */
  --fw-r-none:  0;
  --fw-r-hair:  1px;
  --fw-r-cast:  2px;
  --fw-r-stamp: 0;

  box-sizing: border-box;
  background: var(--fw-bone);
  color: var(--fw-ink);
  font-family: var(--fw-body);
  font-size: 17px;
  line-height: 1.55;
}

[data-design="b"] *, [data-design="b"] *::before, [data-design="b"] *::after {
  box-sizing: border-box;
}

/* ── E1: HEADER ─────────────────────────────────────────────────────────── */

[data-design="b"] .rf-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--fw-bone);
  border-bottom: 1px solid var(--fw-rebar);
}

[data-design="b"] .rf-header__pour {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

[data-design="b"] .rf-header__line {
  position: absolute;
  left: -40%;
  height: 1px;
  width: 60%;
  background: linear-gradient(90deg, transparent 0%, var(--fw-ink) 50%, transparent 100%);
  opacity: 0.18;
}

[data-design="b"] .rf-header__line--a {
  top: 28%;
  animation: fw-header-draw-a 28s linear infinite;
}

[data-design="b"] .rf-header__line--b {
  top: 71%;
  animation: fw-header-draw-b 31s linear infinite;
}

[data-design="b"] .rf-header__bar {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1280px;
  margin: 0 auto;
  padding: clamp(20px, 3vw, 36px) clamp(16px, 4vw, 48px);
}

[data-design="b"] .rf-logo {
  text-decoration: none;
}

[data-design="b"] .rf-logo__mark {
  font-family: var(--fw-display);
  font-weight: 600;
  font-size: clamp(17px, 2vw, 24px);
  letter-spacing: -0.015em;
  color: var(--fw-ink);
}

[data-design="b"] .rf-hamburger {
  background: transparent;
  border: 0;
  padding: 10px;
  display: inline-flex;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
}

[data-design="b"] .rf-hamburger__bar {
  display: block;
  width: 28px;
  height: 2px;
  background: var(--fw-ink);
  transition: transform var(--fw-register), background-color var(--fw-set);
}

[data-design="b"] .rf-hamburger[aria-expanded="true"] .rf-hamburger__bar:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}

[data-design="b"] .rf-hamburger[aria-expanded="true"] .rf-hamburger__bar:nth-child(2) {
  transform: translateY(-4px) rotate(-45deg);
}

/* Drawer — display:none when closed (gate requirement) */
[data-design="b"] .rf-drawer {
  position: fixed;
  inset: 0;
  background: var(--fw-bone);
  z-index: 50;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--fw-register);
}

[data-design="b"] .rf-drawer[aria-hidden="false"] {
  opacity: 1;
  pointer-events: auto;
}

[data-design="b"] .rf-drawer__inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: clamp(60px, 10vh, 120px) clamp(16px, 4vw, 48px);
  display: flex;
  flex-direction: column;
  gap: var(--fw-board);
}

[data-design="b"] .rf-drawer__link {
  font-family: var(--fw-display);
  font-size: clamp(28px, 5vw, 56px);
  color: var(--fw-ink);
  text-decoration: none;
  letter-spacing: -0.02em;
  border-bottom: 1px solid var(--fw-rebar);
  padding-bottom: var(--fw-joint);
  transition: color var(--fw-set);
  min-height: 44px;
  display: block;
}

[data-design="b"] .rf-drawer__link:hover,
[data-design="b"] .rf-drawer__link:focus-visible {
  color: var(--fw-rust);
  outline: none;
}

[data-design="b"] .rf-drawer__phone {
  font-family: var(--fw-mono);
  font-size: clamp(16px, 2vw, 20px);
  color: var(--fw-shadow);
  text-decoration: none;
  letter-spacing: 0.04em;
  padding: var(--fw-joint) 0;
  min-height: 44px;
  display: block;
}

[data-design="b"] .rf-drawer__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--fw-board);
  padding: 16px 28px;
  background: var(--fw-rust);
  color: var(--fw-bone);
  font-family: var(--fw-mono);
  font-size: 14px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: var(--fw-r-cast);
  min-height: 44px;
  margin-top: var(--fw-board);
  transition: background-color var(--fw-set);
}

[data-design="b"] .rf-drawer__cta:hover { background: color-mix(in oklab, var(--fw-rust), var(--fw-ink) 20%); }

[data-design="b"] .rf-drawer__close {
  position: absolute;
  top: clamp(20px, 3vw, 36px);
  right: clamp(16px, 4vw, 48px);
  background: transparent;
  border: 0;
  font-family: var(--fw-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--fw-ink);
  cursor: pointer;
  min-width: 44px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

@keyframes fw-header-draw-a {
  0%   { transform: translateX(0);    opacity: 0; }
  12%  { opacity: 0.18; }
  88%  { opacity: 0.18; }
  100% { transform: translateX(280%); opacity: 0; }
}

@keyframes fw-header-draw-b {
  0%   { transform: translateX(0);    opacity: 0; }
  10%  { opacity: 0.14; }
  90%  { opacity: 0.14; }
  100% { transform: translateX(280%); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  [data-design="b"] .rf-header__line--a,
  [data-design="b"] .rf-header__line--b {
    animation: none;
    opacity: 0.1;
    transform: translateX(80%);
  }
}

@media (max-width: 560px) {
  [data-design="b"] .rf-header__bar { padding: 16px; }
  [data-design="b"] .rf-logo__mark  { font-size: 15px; }
}

/* ── HERO (E3 backdrop + text + E2 CTA) ─────────────────────────────────── */

[data-design="b"] .rf-hero {
  position: relative;
  min-height: clamp(480px, 75vh, 800px);
  background: var(--fw-ink);
  overflow: hidden;
  display: flex;
  align-items: flex-end;
}

/* E3: ONE animated substrate — SVG roofline draw + sustained ambient */
[data-design="b"] .rf-hero__backdrop {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

[data-design="b"] .rf-hero__svg {
  width: 100%;
  height: 100%;
  position: absolute;
  inset: 0;
}

/* Color-field wash — visible at first paint (opacity ≥ 0.25 at peak) */
[data-design="b"] .rf-hero__wash {
  fill: var(--fw-ink);
  animation: fw-hero-wash 9s ease-in-out infinite;
}

/* Ridgeline — draws in on arrival, then sustained ambient opacity breathe */
[data-design="b"] .rf-hero__ridge {
  fill: none;
  stroke: var(--fw-aggregate);
  stroke-width: 2;
  stroke-linecap: square;
  stroke-dasharray: 3200;
  stroke-dashoffset: 3200;
  animation: fw-ridge-arrive 2.2s cubic-bezier(0.65, 0, 0.35, 1) forwards,
             fw-ridge-ambient 7s ease-in-out 2.2s infinite;
}

[data-design="b"] .rf-hero__rake {
  stroke: var(--fw-aggregate);
  stroke-width: 1;
  stroke-dasharray: 640;
  stroke-dashoffset: 640;
  opacity: 0;
}

[data-design="b"] .rf-hero__rake--left {
  animation: fw-rake-arrive 1s cubic-bezier(0.65, 0, 0.35, 1) 1.8s forwards;
}

[data-design="b"] .rf-hero__rake--right {
  animation: fw-rake-arrive 1s cubic-bezier(0.65, 0, 0.35, 1) 2s forwards;
}

[data-design="b"] .rf-hero__eave {
  stroke: var(--fw-rebar);
  stroke-width: 1;
  stroke-dasharray: 1440;
  stroke-dashoffset: 1440;
  animation: fw-eave-arrive 1.4s cubic-bezier(0.65, 0, 0.35, 1) 1.6s forwards;
  opacity: 0.5;
}

/* Course lines — lay in sequentially from eave toward ridge, then sustain */
[data-design="b"] .rf-hero__courses {
  opacity: 0;
  animation: fw-courses-arrive 1.8s ease-out 2s forwards;
}

[data-design="b"] .rf-hero__course {
  stroke: var(--fw-shadow);
  stroke-width: 0.5;
  opacity: 0.4;
}

/* Dimension tick at ridge */
[data-design="b"] .rf-hero__tick {
  stroke: var(--fw-rust);
  stroke-width: 1.5;
  opacity: 0;
  animation: fw-tick-arrive 0.4s ease-out 2.5s forwards;
}

/* SVG keynote text */
[data-design="b"] .rf-hero__keynote-svg {
  font-family: var(--fw-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  fill: var(--fw-rust);
  opacity: 0;
  animation: fw-tick-arrive 0.5s ease-out 2.6s forwards;
}

/* Hero content — opacity:1 at first paint, sits above backdrop */
[data-design="b"] .rf-hero__content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: clamp(48px, 8vw, 96px) clamp(16px, 4vw, 48px) clamp(56px, 10vw, 112px);
  display: flex;
  flex-direction: column;
  gap: var(--fw-board);
}

/* All hero text: opacity:1 at first paint — NEVER opacity:0 on hero/cta text */
[data-design="b"] .rf-hero__stamp-label {
  font-family: var(--fw-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fw-rust);
  margin: 0;
  opacity: 1;
}

[data-design="b"] .rf-hero__headline {
  font-family: var(--fw-display);
  font-weight: 600;
  font-size: clamp(36px, 7vw, 88px);
  letter-spacing: -0.02em;
  line-height: 0.97;
  color: var(--fw-bone);
  margin: 0;
  max-width: 18ch;
  opacity: 1;
}

[data-design="b"] .rf-hero__subtitle {
  font-family: var(--fw-mono);
  font-size: clamp(13px, 1.4vw, 16px);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fw-aggregate);
  margin: 0;
  opacity: 1;
}

[data-design="b"] .rf-hero__proof {
  font-family: var(--fw-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--fw-shadow);
  margin: 0;
  opacity: 1;
}

/* Keyframe animations for hero SVG */
@keyframes fw-hero-wash {
  0%, 100% { fill: var(--fw-ink); }
  50%       { fill: color-mix(in oklab, var(--fw-ink), var(--fw-rebar) 25%); }
}

@keyframes fw-ridge-arrive {
  to { stroke-dashoffset: 0; }
}

@keyframes fw-ridge-ambient {
  0%, 100% { stroke-opacity: 0.55; }
  50%       { stroke-opacity: 0.85; }
}

@keyframes fw-rake-arrive {
  0%   { stroke-dashoffset: 640; opacity: 0; }
  100% { stroke-dashoffset: 0;   opacity: 0.45; }
}

@keyframes fw-eave-arrive {
  0%   { stroke-dashoffset: 1440; opacity: 0; }
  100% { stroke-dashoffset: 0;    opacity: 0.5; }
}

@keyframes fw-courses-arrive {
  0%   { opacity: 0; }
  100% { opacity: 1; }
}

@keyframes fw-tick-arrive {
  0%   { opacity: 0; }
  100% { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  [data-design="b"] .rf-hero__ridge  { animation: none; stroke-dashoffset: 0; stroke-opacity: 0.6; }
  [data-design="b"] .rf-hero__rake   { animation: none; stroke-dashoffset: 0; opacity: 0.4; }
  [data-design="b"] .rf-hero__eave   { animation: none; stroke-dashoffset: 0; opacity: 0.5; }
  [data-design="b"] .rf-hero__courses { animation: none; opacity: 1; }
  [data-design="b"] .rf-hero__tick   { animation: none; opacity: 1; }
  [data-design="b"] .rf-hero__keynote-svg { animation: none; opacity: 1; }
  [data-design="b"] .rf-hero__wash   { animation: none; }
}

/* ── E2: CTA (stamp button) ─────────────────────────────────────────────── */

[data-design="b"] .rf-cta {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--fw-board);
  padding: 18px 28px;
  background: var(--fw-rust);
  color: var(--fw-bone);
  font-family: var(--fw-mono);
  font-size: 14px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: var(--fw-r-cast);
  will-change: transform;
  transition: transform var(--fw-set), background-color var(--fw-set);
  animation: fw-cta-breath 4.8s ease-in-out infinite;
  overflow: hidden;
  min-height: 44px;
  /* Text always visible — opacity:1 */
  opacity: 1;
}

[data-design="b"] .rf-cta__grain {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(6deg, transparent 0 6px, rgba(26,24,21,0.08) 6px 7px);
  transition: transform var(--fw-set);
  pointer-events: none;
}

[data-design="b"] .rf-cta__label {
  position: relative;
  opacity: 1;
}

[data-design="b"] .rf-cta__arrow {
  position: relative;
  transition: transform var(--fw-register);
  opacity: 1;
}

[data-design="b"] .rf-cta::after {
  content: "";
  position: absolute;
  left: 28px;
  right: 28px;
  bottom: 12px;
  height: 1px;
  background: var(--fw-bone);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--fw-register);
}

[data-design="b"] .rf-cta:hover::after,
[data-design="b"] .rf-cta:focus-visible::after { transform: scaleX(1); }

[data-design="b"] .rf-cta:hover .rf-cta__arrow,
[data-design="b"] .rf-cta:focus-visible .rf-cta__arrow { transform: translateX(6px); }

[data-design="b"] .rf-cta:focus-visible { outline: 2px solid var(--fw-rebar); outline-offset: 4px; }

[data-design="b"] .rf-cta:active { transform: translateY(2px); }
[data-design="b"] .rf-cta:active .rf-cta__grain { transform: translateX(1px); }

@keyframes fw-cta-breath {
  0%, 100% { box-shadow: 0 0 0 0 rgba(140,74,46,0.0); }
  50%       { box-shadow: 0 0 0 8px rgba(140,74,46,0.12); }
}

@media (prefers-reduced-motion: reduce) {
  [data-design="b"] .rf-cta { animation: none; }
  [data-design="b"] .rf-cta::after,
  [data-design="b"] .rf-cta__arrow { transition: none; }
}

/* ── E6: POINTER (roofing water-shed / course-lay register) ─────────────── */

[data-design="b"] .rf-pointer {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: clamp(40px, 8vw, 72px) 16px clamp(48px, 10vw, 88px);
  background: var(--fw-bone);
  /* Visible at first paint: no opacity:0 on the wrapper */
  opacity: 1;
}

[data-design="b"] .rf-pointer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  /* Minimum bounding-box height well above 8px gate requirement */
  min-height: 80px;
}

/* Course lines — three stacked, staggered widths, animate like shingles laying in */
[data-design="b"] .rf-pointer__course {
  display: block;
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--fw-rebar) 30%, var(--fw-rebar) 70%, transparent 100%);
  border-radius: 0;
  transform-origin: center;
  opacity: 0;
}

[data-design="b"] .rf-pointer__course--1 {
  width: 64px;
  animation: fw-pointer-course 6s ease-in-out infinite;
  animation-delay: 0s;
}

[data-design="b"] .rf-pointer__course--2 {
  width: 40px;
  animation: fw-pointer-course 6s ease-in-out infinite;
  animation-delay: 0.5s;
}

[data-design="b"] .rf-pointer__course--3 {
  width: 24px;
  animation: fw-pointer-course 6s ease-in-out infinite;
  animation-delay: 1s;
}

/* Water-shed drop — vertical hairline */
[data-design="b"] .rf-pointer__shed {
  display: block;
  width: 1px;
  height: 40px;
  background: var(--fw-rebar);
  transform-origin: top center;
  animation: fw-pointer-shed 6s ease-in-out infinite;
  animation-delay: 1.2s;
  opacity: 0;
}

/* Label */
[data-design="b"] .rf-pointer__label {
  font-family: var(--fw-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fw-shadow);
  animation: fw-pointer-label 6s ease-in-out infinite;
  animation-delay: 1.8s;
  opacity: 0;
}

@keyframes fw-pointer-course {
  0%, 100% { opacity: 0; transform: scaleX(0.3); }
  30%, 70%  { opacity: 0.7; transform: scaleX(1); }
}

@keyframes fw-pointer-shed {
  0%, 100% { opacity: 0; transform: scaleY(0.2); }
  40%, 65%  { opacity: 0.6; transform: scaleY(1); }
}

@keyframes fw-pointer-label {
  0%, 25%, 100% { opacity: 0; }
  45%, 70%       { opacity: 0.7; }
}

@media (prefers-reduced-motion: reduce) {
  [data-design="b"] .rf-pointer__course { animation: none; opacity: 0.5; transform: scaleX(1); }
  [data-design="b"] .rf-pointer__shed   { animation: none; opacity: 0.5; transform: scaleY(1); }
  [data-design="b"] .rf-pointer__label  { animation: none; opacity: 0.6; }
}

/* ── E5: FUNNEL ─────────────────────────────────────────────────────────── */

[data-design="b"] .rf-interactive {
  background: var(--fw-bone);
  padding: clamp(64px, 10vw, 112px) clamp(16px, 4vw, 48px);
}

[data-design="b"] .rf-interactive__header {
  max-width: 1280px;
  margin: 0 auto var(--fw-bay);
}

[data-design="b"] .rf-interactive__title {
  font-family: var(--fw-display);
  font-weight: 600;
  font-size: clamp(32px, 5vw, 64px);
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--fw-ink);
  margin: var(--fw-board) 0 var(--fw-board);
}

[data-design="b"] .rf-interactive__sub {
  font-family: var(--fw-body);
  font-size: clamp(17px, 1.4vw, 19px);
  color: var(--fw-shadow);
  max-width: 56ch;
  margin: 0;
}

[data-design="b"] .rf-funnel {
  max-width: 1280px;
  margin: 0 auto;
}

[data-design="b"] .rf-funnel__steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--fw-rebar);
}

[data-design="b"] .rf-funnel__step {
  border-bottom: 1px solid var(--fw-rebar);
  transition: background-color var(--fw-register);
}

[data-design="b"] .rf-funnel__step[data-state="active"] { background: var(--fw-page); }
[data-design="b"] .rf-funnel__step[data-state="done"]   { background: var(--fw-bone); }

[data-design="b"] .rf-funnel__title-block {
  display: grid;
  grid-template-columns: 64px 1fr auto;
  align-items: center;
  gap: var(--fw-board);
  padding: var(--fw-board) var(--fw-bay);
  font-family: var(--fw-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fw-ink);
  cursor: pointer;
  min-height: 44px;
}

[data-design="b"] .rf-funnel__index {
  font-family: var(--fw-display);
  font-size: 24px;
  letter-spacing: -0.01em;
  color: var(--fw-rebar);
}

[data-design="b"] .rf-funnel__label { font-family: var(--fw-mono); color: var(--fw-ink); }

[data-design="b"] .rf-funnel__stamp {
  font-family: var(--fw-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  padding: 4px 8px;
  border: 1px solid var(--fw-rebar);
  color: var(--fw-shadow);
}

[data-design="b"] .rf-funnel__step[data-state="done"] .rf-funnel__stamp {
  background: var(--fw-rust);
  border-color: var(--fw-rust);
  color: var(--fw-bone);
}

[data-design="b"] .rf-funnel__step[data-state="active"] .rf-funnel__stamp {
  color: var(--fw-rust);
  border-color: var(--fw-rust);
}

/* Pour animation for step reveal */
[data-design="b"] .rf-funnel__pour {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--fw-pour-t);
  overflow: hidden;
}

[data-design="b"] .rf-funnel__step[data-state="active"] .rf-funnel__pour {
  grid-template-rows: 1fr;
}

[data-design="b"] .rf-funnel__pour__inner { min-height: 0; }

[data-design="b"] .rf-funnel__field {
  border: 0;
  padding: var(--fw-bay);
  display: grid;
  gap: var(--fw-board);
}

[data-design="b"] .rf-funnel__field legend {
  font-family: var(--fw-body);
  font-size: clamp(20px, 2.2vw, 28px);
  color: var(--fw-ink);
  padding: 0 0 var(--fw-board);
  max-width: 36ch;
}

[data-design="b"] .rf-funnel__choices {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--fw-joint);
}

[data-design="b"] .rf-funnel__choices label {
  display: flex;
  align-items: center;
  gap: var(--fw-joint);
  padding: var(--fw-board);
  border: 1px solid var(--fw-rebar);
  border-radius: var(--fw-r-cast);
  cursor: pointer;
  font-family: var(--fw-body);
  transition: border-color var(--fw-set), background-color var(--fw-set);
  min-height: 44px;
}

[data-design="b"] .rf-funnel__choices label:hover { border-color: var(--fw-ink); }

[data-design="b"] .rf-funnel__choices input[type="radio"] { accent-color: var(--fw-rust); }

[data-design="b"] .rf-funnel__choices label:has(input:checked) {
  background: var(--fw-bone);
  border-color: var(--fw-rust);
}

/* Contact step inputs */
[data-design="b"] .rf-funnel__field--inputs { padding: var(--fw-bay); }

[data-design="b"] .rf-funnel__input {
  display: grid;
  gap: 6px;
  padding: var(--fw-joint) 0;
}

[data-design="b"] .rf-funnel__input span {
  font-family: var(--fw-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fw-shadow);
}

[data-design="b"] .rf-funnel__input em {
  font-style: normal;
  font-size: 10px;
  color: var(--fw-shadow);
  text-transform: none;
  letter-spacing: 0;
}

[data-design="b"] .rf-funnel__input input,
[data-design="b"] .rf-funnel__input textarea {
  font-family: var(--fw-body);
  font-size: 18px;
  border: 0;
  border-bottom: 1px solid var(--fw-rebar);
  padding: 6px 0;
  background: transparent;
  color: var(--fw-ink);
  resize: vertical;
  min-height: 44px;
  width: 100%;
}

[data-design="b"] .rf-funnel__input input:focus,
[data-design="b"] .rf-funnel__input textarea:focus {
  outline: none;
  border-bottom-color: var(--fw-rust);
  border-bottom-width: 2px;
}

[data-design="b"] .rf-funnel__input--area input,
[data-design="b"] .rf-funnel__input--area textarea { min-height: 80px; }

[data-design="b"] .rf-funnel__actions {
  display: flex;
  gap: var(--fw-board);
  padding: 0 var(--fw-bay) var(--fw-bay);
  flex-wrap: wrap;
}

[data-design="b"] .rf-funnel__next,
[data-design="b"] .rf-funnel__submit {
  font-family: var(--fw-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 14px 24px;
  background: var(--fw-ink);
  color: var(--fw-bone);
  border: 0;
  border-radius: var(--fw-r-cast);
  cursor: pointer;
  transition: background-color var(--fw-set), transform var(--fw-set);
  min-height: 44px;
}

[data-design="b"] .rf-funnel__submit { background: var(--fw-rust); }
[data-design="b"] .rf-funnel__next:hover,
[data-design="b"] .rf-funnel__submit:hover { transform: translateY(-1px); }
[data-design="b"] .rf-funnel__next:active,
[data-design="b"] .rf-funnel__submit:active { transform: translateY(1px); }

[data-design="b"] .rf-funnel__back {
  font-family: var(--fw-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 14px 16px;
  background: transparent;
  color: var(--fw-ink);
  border: 0;
  cursor: pointer;
  min-height: 44px;
}

[data-design="b"] .rf-funnel__done {
  display: block;
  padding: var(--fw-bay);
  border: 1px solid var(--fw-rebar);
  background: var(--fw-page);
  animation: fw-step-in var(--fw-pour-t) both;
  margin-top: var(--fw-board);
}

[data-design="b"] .rf-funnel__done h3 {
  font-family: var(--fw-display);
  font-size: clamp(28px, 4vw, 48px);
  color: var(--fw-ink);
  margin: var(--fw-joint) 0;
  letter-spacing: -0.015em;
}

[data-design="b"] .rf-funnel__done p {
  font-family: var(--fw-body);
  color: var(--fw-shadow);
  max-width: 56ch;
}

[data-design="b"] .rf-funnel__done a {
  color: var(--fw-rust);
  text-decoration: none;
}

@keyframes fw-step-in {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Below-funnel trust strip */
[data-design="b"] .rf-funnel__trust {
  max-width: 1280px;
  margin: var(--fw-bay) auto 0;
  padding-top: var(--fw-board);
  border-top: 1px solid var(--fw-rebar);
}

[data-design="b"] .rf-funnel__trust__body {
  font-family: var(--fw-body);
  font-size: clamp(15px, 1.3vw, 17px);
  color: var(--fw-shadow);
  max-width: 60ch;
  margin: var(--fw-joint) 0 0;
}

@media (prefers-reduced-motion: reduce) {
  [data-design="b"] .rf-funnel__pour      { transition: none; }
  [data-design="b"] .rf-funnel__done      { animation: none; }
}

@media (max-width: 768px) {
  [data-design="b"] .rf-funnel__title-block { grid-template-columns: 40px 1fr auto; padding: var(--fw-board); }
  [data-design="b"] .rf-funnel__field       { padding: var(--fw-board); }
  [data-design="b"] .rf-funnel__field--inputs { padding: var(--fw-board); }
  [data-design="b"] .rf-funnel__actions     { padding: 0 var(--fw-board) var(--fw-board); }
}

/* ── E3 AMBIENT A: section-cut hairlines (Services) ─────────────────────── */

[data-design="b"] .rf-ambient-a {
  position: relative;
  background: var(--fw-bone);
  padding: clamp(64px, 10vw, 112px) clamp(16px, 4vw, 48px);
  overflow: hidden;
}

[data-design="b"] .rf-service-area {
  position: relative;
  background: var(--fw-bone);
  padding: clamp(64px, 10vw, 112px) clamp(16px, 4vw, 48px);
  overflow: hidden;
  border-top: 1px solid var(--fw-rebar);
}

[data-design="b"] .rf-ambient-a__cuts {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

[data-design="b"] .rf-ambient-a__cut {
  position: absolute;
  left: 0;
  height: 1px;
  width: 100%;
  background: var(--fw-ink);
  opacity: 0;
  transform-origin: left center;
  transform: scaleX(0);
}

[data-design="b"] .rf-ambient-a__cut--top { top: 26%; animation: fw-cut-draw 22s linear infinite; }
[data-design="b"] .rf-ambient-a__cut--bot { top: 74%; animation: fw-cut-draw 28s linear infinite; animation-delay: -7s; }

[data-design="b"] .rf-ambient-a__inner {
  position: relative;
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--fw-bay);
}

[data-design="b"] .rf-ambient-a__title {
  font-family: var(--fw-display);
  font-weight: 600;
  font-size: clamp(40px, 7vw, 96px);
  letter-spacing: -0.02em;
  line-height: 0.96;
  color: var(--fw-ink);
  margin: 0;
  max-width: 18ch;
}

[data-design="b"] .rf-ambient-a__body {
  font-family: var(--fw-body);
  font-size: clamp(17px, 1.4vw, 19px);
  line-height: 1.55;
  color: var(--fw-ink);
  max-width: 60ch;
}

/* Numbered services list */
[data-design="b"] .rf-services__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--fw-rebar);
}

[data-design="b"] .rf-services__item {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: var(--fw-board);
  align-items: start;
  padding: var(--fw-board) 0;
  border-bottom: 1px solid var(--fw-rebar);
  transition: background-color var(--fw-set);
}

[data-design="b"] .rf-services__item:hover { background: var(--fw-page); }

[data-design="b"] .rf-services__num {
  font-family: var(--fw-display);
  font-size: 24px;
  letter-spacing: -0.01em;
  color: var(--fw-rebar);
  padding-top: 2px;
}

[data-design="b"] .rf-services__detail {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: var(--fw-board) 0;
}

[data-design="b"] .rf-services__detail strong {
  font-family: var(--fw-display);
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--fw-ink);
}

[data-design="b"] .rf-services__detail span {
  font-family: var(--fw-body);
  font-size: clamp(15px, 1.3vw, 17px);
  color: var(--fw-shadow);
  max-width: 56ch;
}

[data-design="b"] .rf-services__repeat-cta {
  padding-top: var(--fw-bay);
}

@keyframes fw-cut-draw {
  0%   { transform: scaleX(0); opacity: 0; }
  8%   { opacity: 0.22; }
  60%  { transform: scaleX(1); opacity: 0.22; }
  80%  { opacity: 0; }
  100% { transform: scaleX(1); opacity: 0; transform-origin: right center; }
}

@media (prefers-reduced-motion: reduce) {
  [data-design="b"] .rf-ambient-a__cut {
    animation-play-state: paused;
    transform: scaleX(1);
    opacity: 0.12;
  }
}

@media (max-width: 768px) {
  [data-design="b"] .rf-ambient-a { padding: 56px 16px; }
  [data-design="b"] .rf-services__item { grid-template-columns: 48px 1fr; }
}

/* ── E4 AMBIENT B: curing slab (Process) ───────────────────────────────── */

[data-design="b"] .rf-ambient-b {
  position: relative;
  padding: clamp(64px, 10vw, 112px) clamp(16px, 4vw, 48px);
  overflow: hidden;
  isolation: isolate;
}

[data-design="b"] .rf-ambient-b__slab {
  position: absolute;
  inset: 0;
  background: var(--fw-aggregate);
  animation: fw-slab-cure 18s ease-in-out infinite;
  z-index: -1;
}

[data-design="b"] .rf-ambient-b__aggregate {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 12% 18%, var(--fw-ink) 0 1px, transparent 1.5px),
    radial-gradient(circle at 78% 32%, var(--fw-ink) 0 1px, transparent 1.5px),
    radial-gradient(circle at 34% 64%, var(--fw-ink) 0 1px, transparent 1.5px),
    radial-gradient(circle at 89% 81%, var(--fw-ink) 0 1px, transparent 1.5px),
    radial-gradient(circle at  6% 92%, var(--fw-ink) 0 1px, transparent 1.5px),
    radial-gradient(circle at 56% 12%, var(--fw-ink) 0 1px, transparent 1.5px),
    radial-gradient(circle at 22% 44%, var(--fw-ink) 0 1px, transparent 1.5px),
    radial-gradient(circle at 71% 58%, var(--fw-ink) 0 1px, transparent 1.5px);
  background-size: 100% 100%;
  opacity: 0.32;
  animation: fw-aggregate-breath 6.4s ease-in-out infinite;
}

[data-design="b"] .rf-ambient-b__inner {
  position: relative;
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  gap: var(--fw-bay);
  color: var(--fw-bone);
}

[data-design="b"] .rf-ambient-b__title {
  font-family: var(--fw-display);
  font-weight: 500;
  font-size: clamp(32px, 5vw, 64px);
  letter-spacing: -0.015em;
  line-height: 1;
  margin: 0;
  max-width: 22ch;
  color: var(--fw-bone);
}

[data-design="b"] .rf-ambient-b .rf-keynote { color: rgba(242,239,232,0.7); }

[data-design="b"] .rf-process__steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid rgba(242,239,232,0.2);
}

[data-design="b"] .rf-process__step {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: var(--fw-board);
  align-items: start;
  padding: var(--fw-board) 0;
  border-bottom: 1px solid rgba(242,239,232,0.2);
}

[data-design="b"] .rf-process__num {
  font-family: var(--fw-display);
  font-size: 24px;
  letter-spacing: -0.01em;
  color: var(--fw-rust);
  padding-top: 2px;
}

[data-design="b"] .rf-process__step div {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: var(--fw-board) 0;
}

[data-design="b"] .rf-process__step strong {
  font-family: var(--fw-display);
  font-size: clamp(17px, 1.8vw, 22px);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--fw-bone);
}

[data-design="b"] .rf-process__step span {
  font-family: var(--fw-body);
  font-size: clamp(15px, 1.3vw, 17px);
  color: rgba(242,239,232,0.75);
  max-width: 52ch;
}

@keyframes fw-slab-cure {
  0%, 100% { background: var(--fw-aggregate); }
  50%       { background: color-mix(in oklab, var(--fw-aggregate), var(--fw-shadow) 40%); }
}

@keyframes fw-aggregate-breath {
  0%, 100% { opacity: 0.28; transform: scale(1); }
  50%       { opacity: 0.42; transform: scale(1.012); }
}

@media (prefers-reduced-motion: reduce) {
  [data-design="b"] .rf-ambient-b__slab,
  [data-design="b"] .rf-ambient-b__aggregate { animation-play-state: paused; }
}

@media (max-width: 768px) {
  [data-design="b"] .rf-ambient-b { padding: 56px 16px; }
  [data-design="b"] .rf-process__step { grid-template-columns: 48px 1fr; }
}

/* ── SERVICE AREA section ────────────────────────────────────────────────── */

[data-design="b"] .rf-service-area__inner {
  position: relative;
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  gap: var(--fw-board);
}

[data-design="b"] .rf-service-area__title {
  font-family: var(--fw-display);
  font-weight: 600;
  font-size: clamp(32px, 5vw, 64px);
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--fw-ink);
  margin: 0;
}

[data-design="b"] .rf-service-area__body {
  font-family: var(--fw-body);
  font-size: clamp(17px, 1.4vw, 19px);
  line-height: 1.6;
  color: var(--fw-shadow);
  max-width: 60ch;
}

[data-design="b"] .rf-service-area__body a {
  color: var(--fw-rust);
  text-decoration: none;
}

/* ── KEYNOTE (shared utility) ────────────────────────────────────────────── */

[data-design="b"] .rf-keynote {
  font-family: var(--fw-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fw-shadow);
  margin: 0;
}

/* ── FOOTER ─────────────────────────────────────────────────────────────── */

[data-design="b"] .rf-footer {
  background: var(--fw-bone);
  border-top: 1px solid var(--fw-rebar);
  padding: clamp(48px, 8vw, 96px) clamp(16px, 4vw, 48px) clamp(32px, 6vw, 64px);
}

[data-design="b"] .rf-footer__rule-line {
  display: none; /* top border on .rf-footer handles it */
}

[data-design="b"] .rf-footer__inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--fw-slab);
  padding-bottom: var(--fw-bay);
  border-bottom: 1px solid var(--fw-rebar);
}

[data-design="b"] .rf-footer__name {
  font-family: var(--fw-display);
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--fw-ink);
  margin: 0 0 var(--fw-joint);
}

[data-design="b"] .rf-footer__loc {
  font-family: var(--fw-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--fw-shadow);
  margin: 0 0 var(--fw-board);
}

[data-design="b"] .rf-footer__tel,
[data-design="b"] .rf-footer__tel-inline {
  font-family: var(--fw-mono);
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--fw-rust);
  text-decoration: none;
  display: block;
  margin-top: var(--fw-joint);
  min-height: 44px;
  line-height: 44px;
}

[data-design="b"] .rf-footer__list {
  list-style: none;
  padding: 0;
  margin: var(--fw-board) 0 0;
  display: flex;
  flex-direction: column;
  gap: var(--fw-joint);
}

[data-design="b"] .rf-footer__list li {
  font-family: var(--fw-body);
  font-size: 16px;
  color: var(--fw-shadow);
}

[data-design="b"] .rf-footer__block--cta {
  display: flex;
  flex-direction: column;
  gap: var(--fw-board);
  justify-content: flex-start;
}

[data-design="b"] .rf-footer__bottom {
  max-width: 1280px;
  margin: var(--fw-board) auto 0;
  position: relative;
  overflow: hidden;
}

[data-design="b"] .rf-footer__draw-line {
  position: absolute;
  left: 0;
  top: 50%;
  height: 1px;
  width: 100%;
  background: linear-gradient(90deg, transparent 0%, var(--fw-rebar) 20%, var(--fw-rebar) 80%, transparent 100%);
  opacity: 0;
  animation: fw-footer-draw 22s linear infinite;
}

[data-design="b"] .rf-footer__bottom .rf-keynote {
  position: relative;
  margin-top: var(--fw-board);
}

@keyframes fw-footer-draw {
  0%   { opacity: 0; transform: scaleX(0); transform-origin: left; }
  10%  { opacity: 0.3; }
  85%  { opacity: 0.3; transform: scaleX(1); }
  100% { opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  [data-design="b"] .rf-footer__draw-line { animation: none; opacity: 0.2; transform: scaleX(1); }
}

@media (max-width: 768px) {
  [data-design="b"] .rf-footer__inner { gap: var(--fw-pour); }
}

/* ════════════════════════════════════════════════════════════════════════════
   MOBILE HORIZONTAL-SCROLL GUARD
   Scoped to .dq-design as required. NEVER bare [data-design] descendant.
════════════════════════════════════════════════════════════════════════════ */
[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;
}

/* 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; }