/* ═══════════════════════════════════════════════════════════════
   SKY ROOFING CO. — Design A (Formwork remapped, [data-design="a"])
   ~12 trade-rooted tokens. All selectors scoped [data-design="a"].
   Budgeted: ~1000 lines.
═══════════════════════════════════════════════════════════════ */

/* ── Design tokens ──────────────────────────────────────────── */
[data-design="a"] {
  /* Design-A primary exposure (required) */
  --design-a-primary: #8C4A2E;

  /* Palette — Formwork remapped */
  --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-sp: 2px;
  --fw-joint:    8px;
  --fw-board:    16px;
  --fw-bay:      32px;
  --fw-pour:     64px;
  --fw-slab:     112px;
  --fw-monolith: 176px;

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

  /* 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-dur: 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-ln: 22s linear;

  /* Base */
  box-sizing: border-box;
  background: var(--fw-bone);
  color: var(--fw-ink);
  font-family: var(--fw-body);
  font-size: clamp(16px, 1.2vw, 19px);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

/* ── Reset ──────────────────────────────────────────────────── */
[data-design="a"] h1, [data-design="a"] h2, [data-design="a"] h3,
[data-design="a"] p, [data-design="a"] ul, [data-design="a"] ol,
[data-design="a"] fieldset, [data-design="a"] legend { margin: 0; padding: 0; }
[data-design="a"] ul, [data-design="a"] ol { list-style: none; }
[data-design="a"] a { color: inherit; }
[data-design="a"] fieldset { border: 0; }

/* ═══════════════════════════════════════════════════════════════
   E1 — HEADER
═══════════════════════════════════════════════════════════════ */
[data-design="a"] .rf-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--fw-bone);
  border-bottom: var(--fw-hair) solid var(--fw-rebar);
  overflow: hidden;
}
[data-design="a"] .rf-header__pour {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
[data-design="a"] .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="a"] .rf-header__line--a {
  top: 28%;
  animation: fw-header-draw-a 28s linear infinite;
}
[data-design="a"] .rf-header__line--b {
  top: 71%;
  animation: fw-header-draw-b 31s linear infinite;
}
[data-design="a"] .rf-header__bar {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1280px;
  margin: 0 auto;
  padding: clamp(18px, 2.5vw, 32px) clamp(16px, 4vw, 48px);
}
[data-design="a"] .rf-logo {
  text-decoration: none;
}
[data-design="a"] .rf-logo__mark {
  font-family: var(--fw-display);
  font-weight: 600;
  font-size: clamp(16px, 2vw, 24px);
  letter-spacing: -0.015em;
  color: var(--fw-ink);
}
[data-design="a"] .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="a"] .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="a"] .rf-hamburger[aria-expanded="true"] .rf-hamburger__bar:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}
[data-design="a"] .rf-hamburger[aria-expanded="true"] .rf-hamburger__bar:nth-child(2) {
  transform: translateY(-4px) rotate(-45deg);
}

/* Drawer — display:none when hidden, not opacity:0 */
[data-design="a"] .rf-drawer {
  position: fixed;
  inset: 0;
  background: var(--fw-bone);
  z-index: 50;
  display: none;
}
[data-design="a"] .rf-drawer:not([hidden]) {
  display: flex;
  flex-direction: column;
}
[data-design="a"] .rf-drawer__inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: clamp(64px, 12vh, 128px) clamp(16px, 4vw, 48px) var(--fw-bay);
  display: flex;
  flex-direction: column;
  gap: var(--fw-board);
  flex: 1;
}
[data-design="a"] .rf-drawer__link {
  font-family: var(--fw-display);
  font-size: clamp(28px, 5.5vw, 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);
}
[data-design="a"] .rf-drawer__link:hover,
[data-design="a"] .rf-drawer__link:focus-visible {
  color: var(--fw-rust);
  outline: none;
}
[data-design="a"] .rf-drawer__contacts {
  margin-top: var(--fw-board);
  display: flex;
  flex-direction: column;
  gap: var(--fw-board);
}
[data-design="a"] .rf-drawer__tel {
  font-family: var(--fw-mono);
  font-size: clamp(18px, 2.5vw, 28px);
  color: var(--fw-ink);
  text-decoration: none;
  letter-spacing: 0.04em;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}
[data-design="a"] .rf-drawer__tel:hover { color: var(--fw-rust); }
[data-design="a"] .rf-drawer__cta-link {
  font-family: var(--fw-mono);
  font-size: 14px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fw-bone);
  background: var(--fw-rust);
  padding: 14px 24px;
  text-decoration: none;
  border-radius: var(--fw-r-cast);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  width: fit-content;
}
[data-design="a"] .rf-drawer__close {
  position: absolute;
  top: clamp(18px, 2.5vw, 32px);
  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="a"] .rf-header__line--a,
  [data-design="a"] .rf-header__line--b {
    animation: none;
    opacity: 0.1;
    transform: translateX(80%);
  }
}

/* ═══════════════════════════════════════════════════════════════
   E3 + HERO — Unique animated hero (roofline-draw + course drift)
   Substrate: bone-to-slate wash + SVG roofline + course lines.
   All hero text: opacity:1 at first paint (NOT gated).
═══════════════════════════════════════════════════════════════ */
[data-design="a"] .rf-hero {
  position: relative;
  min-height: clamp(60vh, 72vh, 88vh);
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--fw-bone);
  padding: clamp(64px, 10vw, 112px) clamp(16px, 4vw, 48px);
}

/* Single animated substrate layer */
[data-design="a"] .rf-hero__substrate {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

/* Ambient wash: continuous slow color shift across the hero surface */
[data-design="a"] .rf-hero__wash {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    160deg,
    var(--fw-bone) 0%,
    color-mix(in oklab, var(--fw-aggregate), var(--fw-bone) 60%) 50%,
    var(--fw-bone) 100%
  );
  background-size: 300% 300%;
  animation: fw-hero-wash 9s ease-in-out infinite;
  opacity: 0.72;
}

/* SVG roofline — draws in on arrival, then sustains a slow ambient drift */
[data-design="a"] .rf-hero__roofline {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: clamp(60px, 12vw, 120px);
  overflow: visible;
}
[data-design="a"] .rf-roofline__ridge {
  stroke: var(--fw-rebar);
  stroke-width: 1.5;
  opacity: 0;
  stroke-dasharray: 3200;
  stroke-dashoffset: 3200;
  animation:
    fw-roofline-draw 2.4s cubic-bezier(0.22, 0.61, 0.36, 1) 0.3s forwards,
    fw-roofline-breathe 8s ease-in-out 3s infinite;
}
[data-design="a"] .rf-roofline__tick {
  stroke: var(--fw-rebar);
  stroke-width: 1.5;
  opacity: 0;
  animation: fw-roofline-tick-in 0.5s cubic-bezier(0.22, 0.61, 0.36, 1) 2.5s forwards;
}
[data-design="a"] .rf-roofline__cap {
  stroke: var(--fw-rust);
  stroke-width: 1;
  opacity: 0;
  stroke-dasharray: 480;
  stroke-dashoffset: 480;
  animation:
    fw-ridge-cap-draw 1.2s cubic-bezier(0.22, 0.61, 0.36, 1) 2s forwards,
    fw-ridge-cap-pulse 7s ease-in-out 3.5s infinite;
}

/* Course-lay: 4 horizontal lines that drift very slowly upward (craft, not leak) */
[data-design="a"] .rf-hero__courses {
  position: absolute;
  inset: 0;
  overflow: hidden;
}
[data-design="a"] .rf-course {
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 5%, var(--fw-rebar) 20%, var(--fw-rebar) 80%, transparent 95%);
  opacity: 0.12;
}
[data-design="a"] .rf-course--1 { bottom: 20%; animation: fw-course-drift 18s linear infinite; }
[data-design="a"] .rf-course--2 { bottom: 36%; animation: fw-course-drift 22s linear infinite; animation-delay: -5s; }
[data-design="a"] .rf-course--3 { bottom: 52%; animation: fw-course-drift 26s linear infinite; animation-delay: -11s; }
[data-design="a"] .rf-course--4 { bottom: 68%; animation: fw-course-drift 30s linear infinite; animation-delay: -8s; }

@keyframes fw-hero-wash {
  0%, 100% { background-position: 0% 50%;   opacity: 0.55; }
  50%       { background-position: 100% 50%; opacity: 0.82; }
}
@keyframes fw-roofline-draw {
  0%   { stroke-dashoffset: 3200; opacity: 0; }
  5%   { opacity: 0.55; }
  100% { stroke-dashoffset: 0; opacity: 0.55; }
}
@keyframes fw-roofline-breathe {
  0%, 100% { opacity: 0.55; }
  50%       { opacity: 0.38; }
}
@keyframes fw-roofline-tick-in {
  from { opacity: 0; }
  to   { opacity: 0.5; }
}
@keyframes fw-ridge-cap-draw {
  0%   { stroke-dashoffset: 480; opacity: 0; }
  10%  { opacity: 0.7; }
  100% { stroke-dashoffset: 0; opacity: 0.7; }
}
@keyframes fw-ridge-cap-pulse {
  0%, 100% { opacity: 0.7; }
  50%       { opacity: 0.45; }
}
@keyframes fw-course-drift {
  0%   { transform: translateY(0);    opacity: 0.08; }
  25%  { opacity: 0.18; }
  75%  { opacity: 0.15; }
  100% { transform: translateY(-40%); opacity: 0.06; }
}

/* Hero content — all text opacity:1 at first paint */
[data-design="a"] .rf-hero__content {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
  display: grid;
  gap: var(--fw-board);
}
[data-design="a"] .rf-hero__keynote {
  font-family: var(--fw-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fw-shadow);
  opacity: 1;
}
[data-design="a"] .rf-hero__headline {
  font-family: var(--fw-display);
  font-weight: 600;
  font-size: clamp(36px, 6.5vw, 88px);
  letter-spacing: -0.025em;
  line-height: 1.0;
  color: var(--fw-ink);
  max-width: 16ch;
  opacity: 1;
}
[data-design="a"] .rf-hero__subtitle {
  font-family: var(--fw-body);
  font-size: clamp(16px, 1.4vw, 20px);
  color: var(--fw-shadow);
  max-width: 52ch;
  line-height: 1.5;
  opacity: 1;
}
[data-design="a"] .rf-hero__proof {
  font-family: var(--fw-mono);
  font-size: 13px;
  letter-spacing: 0.07em;
  color: var(--fw-shadow);
  opacity: 1;
}

/* E2 — Dual CTA group */
[data-design="a"] .rf-hero__cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--fw-board);
  align-items: center;
  margin-top: var(--fw-board);
}

/* ── CTA stamps ─────────────────────────────────────────────── */
[data-design="a"] .rf-cta {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--fw-board);
  padding: 18px 28px;
  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);
  overflow: hidden;
  min-height: 56px;
  min-width: 44px;
  cursor: pointer;
}
[data-design="a"] .rf-cta--primary {
  background: var(--fw-rust);
  color: var(--fw-bone);
  animation: fw-cta-breath 4.8s ease-in-out infinite;
}
[data-design="a"] .rf-cta--secondary {
  background: transparent;
  color: var(--fw-ink);
  border: 1px solid var(--fw-rebar);
  animation: none;
}
[data-design="a"] .rf-cta--secondary:hover {
  border-color: var(--fw-ink);
}
[data-design="a"] .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="a"] .rf-cta__label { position: relative; }
[data-design="a"] .rf-cta__arrow {
  position: relative;
  transition: transform var(--fw-register);
}
[data-design="a"] .rf-cta--primary::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="a"] .rf-cta--primary:hover::after,
[data-design="a"] .rf-cta--primary:focus-visible::after {
  transform: scaleX(1);
}
[data-design="a"] .rf-cta:hover .rf-cta__arrow,
[data-design="a"] .rf-cta:focus-visible .rf-cta__arrow {
  transform: translateX(6px);
}
[data-design="a"] .rf-cta:focus-visible {
  outline: 2px solid var(--fw-rebar);
  outline-offset: 4px;
}
[data-design="a"] .rf-cta:active {
  transform: translateY(2px);
}
[data-design="a"] .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="a"] .rf-cta--primary { animation: none; }
  [data-design="a"] .rf-cta--primary::after,
  [data-design="a"] .rf-cta__arrow { transition: none; }
  [data-design="a"] .rf-hero__roofline,
  [data-design="a"] .rf-roofline__ridge,
  [data-design="a"] .rf-roofline__cap,
  [data-design="a"] .rf-roofline__tick,
  [data-design="a"] .rf-course,
  [data-design="a"] .rf-hero__wash {
    animation: none;
    opacity: 0.35;
  }
  [data-design="a"] .rf-roofline__ridge { stroke-dashoffset: 0; }
  [data-design="a"] .rf-roofline__cap   { stroke-dashoffset: 0; }
}

/* ═══════════════════════════════════════════════════════════════
   E6 — POINTER between hero and funnel
   NOT a button. data-mf-role="pointer".
   Wrapper opacity:1 always. BBox height ≥ 8px at all widths.
═══════════════════════════════════════════════════════════════ */
[data-design="a"] .rf-pointer {
  display: flex;
  justify-content: center;
  padding: clamp(40px, 8vw, 80px) 16px clamp(56px, 10vw, 96px);
  background: var(--fw-bone);
  opacity: 1;
  min-height: 80px;
}
[data-design="a"] .fw-pointer__hit {
  position: relative;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--fw-rebar);
  pointer-events: auto;
  cursor: default;
}
[data-design="a"] .fw-pointer__tick {
  display: block;
  width: 16px;
  height: 1px;
  background: currentColor;
  opacity: 0.7;
}
[data-design="a"] .fw-pointer__rule {
  display: block;
  width: 1px;
  height: 56px;
  background: currentColor;
  transform-origin: top center;
  animation: fw-pointer-extend 5s ease-in-out infinite;
}
[data-design="a"] .fw-pointer__label {
  font-family: var(--fw-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fw-shadow);
  opacity: 0;
  animation: fw-pointer-stamp 5s ease-in-out infinite;
}
@keyframes fw-pointer-extend {
  0%, 100% { transform: scaleY(0.4); opacity: 0.4; }
  50%       { transform: scaleY(1);   opacity: 0.85; }
}
@keyframes fw-pointer-stamp {
  0%, 30%, 100% { opacity: 0; }
  50%, 70%      { opacity: 0.85; }
}
@media (prefers-reduced-motion: reduce) {
  [data-design="a"] .fw-pointer__rule  { animation: none; opacity: 0.7; transform: scaleY(1); }
  [data-design="a"] .fw-pointer__label { animation: none; opacity: 0.7; }
}

/* ═══════════════════════════════════════════════════════════════
   E5 — FUNNEL (5-step qualifying intake)
   id="funnel" + data-mf-role="funnel"
═══════════════════════════════════════════════════════════════ */
[data-design="a"] .rf-interactive {
  background: var(--fw-bone);
  padding: clamp(64px, 10vw, 112px) clamp(16px, 4vw, 48px);
  border-top: 1px solid var(--fw-rebar);
}
[data-design="a"] .rf-interactive__header {
  max-width: 1280px;
  margin: 0 auto var(--fw-bay);
}
[data-design="a"] .rf-interactive__title {
  font-family: var(--fw-display);
  font-weight: 600;
  font-size: clamp(28px, 4.5vw, 56px);
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--fw-ink);
  margin: var(--fw-board) 0;
}
[data-design="a"] .rf-interactive__sub {
  font-family: var(--fw-body);
  font-size: clamp(16px, 1.2vw, 18px);
  color: var(--fw-shadow);
  max-width: 60ch;
}
[data-design="a"] .rf-funnel {
  max-width: 1280px;
  margin: 0 auto;
}
[data-design="a"] .rf-funnel__steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--fw-rebar);
}
[data-design="a"] .rf-funnel__step {
  border-bottom: 1px solid var(--fw-rebar);
  transition: background-color var(--fw-register);
}
[data-design="a"] .rf-funnel__step[data-state="active"] {
  background: var(--fw-page);
}
[data-design="a"] .rf-funnel__step[data-state="done"] {
  background: var(--fw-bone);
}
[data-design="a"] .rf-funnel__title-block {
  display: grid;
  grid-template-columns: 56px 1fr auto;
  align-items: center;
  gap: var(--fw-board);
  padding: var(--fw-board) var(--fw-bay);
  cursor: default;
}
[data-design="a"] .rf-funnel__step[data-state="done"] .rf-funnel__title-block {
  cursor: pointer;
}
[data-design="a"] .rf-funnel__index {
  font-family: var(--fw-display);
  font-size: 22px;
  letter-spacing: -0.01em;
  color: var(--fw-rebar);
}
[data-design="a"] .rf-funnel__label {
  font-family: var(--fw-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fw-ink);
}
[data-design="a"] .rf-funnel__stamp {
  font-family: var(--fw-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 8px;
  border: 1px solid var(--fw-rebar);
  color: var(--fw-shadow);
}
[data-design="a"] .rf-funnel__step[data-state="done"] .rf-funnel__stamp {
  background: var(--fw-rust);
  border-color: var(--fw-rust);
  color: var(--fw-bone);
}
[data-design="a"] .rf-funnel__step[data-state="active"] .rf-funnel__stamp {
  color: var(--fw-rust);
  border-color: var(--fw-rust);
}
/* Pour: grid-template-rows trick for smooth height expand */
[data-design="a"] .rf-funnel__pour {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--fw-pour-dur);
  overflow: hidden;
}
[data-design="a"] .rf-funnel__step[data-state="active"] .rf-funnel__pour {
  grid-template-rows: 1fr;
}
[data-design="a"] .rf-funnel__pour > * { min-height: 0; }

[data-design="a"] .rf-funnel__field {
  border: 0;
  padding: var(--fw-bay);
  display: grid;
  gap: var(--fw-board);
}
[data-design="a"] .rf-funnel__field legend {
  font-family: var(--fw-body);
  font-size: clamp(18px, 2vw, 26px);
  color: var(--fw-ink);
  padding: 0 0 var(--fw-board);
  max-width: 40ch;
}
[data-design="a"] .rf-funnel__choices {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--fw-joint);
}
[data-design="a"] .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);
  font-size: clamp(15px, 1.1vw, 17px);
  transition: border-color var(--fw-set), background-color var(--fw-set);
  min-height: 48px;
}
[data-design="a"] .rf-funnel__choices label:hover {
  border-color: var(--fw-ink);
}
[data-design="a"] .rf-funnel__choices input[type="radio"] {
  accent-color: var(--fw-rust);
  min-width: 18px;
  min-height: 18px;
}
[data-design="a"] .rf-funnel__choices label:has(input:checked) {
  background: var(--fw-bone);
  border-color: var(--fw-rust);
}
[data-design="a"] .rf-funnel__field--contact {
  grid-template-columns: 1fr 1fr;
}
[data-design="a"] .rf-funnel__input {
  display: grid;
  gap: 6px;
  padding: var(--fw-joint) 0;
}
[data-design="a"] .rf-funnel__input--full {
  grid-column: 1 / -1;
}
[data-design="a"] .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="a"] .rf-funnel__input input,
[data-design="a"] .rf-funnel__input textarea {
  font-family: var(--fw-body);
  font-size: 17px;
  border: 0;
  border-bottom: 1px solid var(--fw-rebar);
  padding: 8px 0;
  background: transparent;
  color: var(--fw-ink);
  width: 100%;
  resize: vertical;
  min-height: 44px;
}
[data-design="a"] .rf-funnel__input input:focus,
[data-design="a"] .rf-funnel__input textarea:focus {
  outline: none;
  border-bottom-color: var(--fw-rust);
  border-bottom-width: 2px;
}
[data-design="a"] .rf-funnel__note {
  font-family: var(--fw-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--fw-shadow);
  grid-column: 1 / -1;
  line-height: 1.5;
}
[data-design="a"] .rf-funnel__actions {
  display: flex;
  gap: var(--fw-board);
  padding: 0 var(--fw-bay) var(--fw-bay);
  flex-wrap: wrap;
}
[data-design="a"] .rf-funnel__next,
[data-design="a"] .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: 48px;
  min-width: 44px;
}
[data-design="a"] .rf-funnel__submit {
  background: var(--fw-rust);
}
[data-design="a"] .rf-funnel__next:hover,
[data-design="a"] .rf-funnel__submit:hover {
  transform: translateY(-1px);
}
[data-design="a"] .rf-funnel__next:active,
[data-design="a"] .rf-funnel__submit:active {
  transform: translateY(1px);
}
[data-design="a"] .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: 48px;
  min-width: 44px;
}
[data-design="a"] .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-dur) both;
}
[data-design="a"] .rf-funnel__done h3 {
  font-family: var(--fw-display);
  font-size: clamp(24px, 3.5vw, 40px);
  color: var(--fw-ink);
  margin: var(--fw-joint) 0;
  letter-spacing: -0.015em;
}
[data-design="a"] .rf-funnel__done p {
  font-family: var(--fw-body);
  color: var(--fw-shadow);
  max-width: 60ch;
  line-height: 1.55;
}
[data-design="a"] .rf-funnel__license {
  font-family: var(--fw-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--fw-shadow);
  margin-top: var(--fw-board);
}
@keyframes fw-step-in {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
@media (prefers-reduced-motion: reduce) {
  [data-design="a"] .rf-funnel__pour   { transition: none; }
  [data-design="a"] .rf-funnel__done   { animation: none; }
}
@media (max-width: 768px) {
  [data-design="a"] .rf-funnel__title-block {
    grid-template-columns: 40px 1fr auto;
    padding: var(--fw-board);
  }
  [data-design="a"] .rf-funnel__field {
    padding: var(--fw-board);
    grid-template-columns: 1fr;
  }
  [data-design="a"] .rf-funnel__field--contact {
    grid-template-columns: 1fr;
  }
  [data-design="a"] .rf-funnel__actions {
    padding: 0 var(--fw-board) var(--fw-board);
  }
}

/* ═══════════════════════════════════════════════════════════════
   E3 (applied to services) — AMBIENT-A (section-cut hairlines)
═══════════════════════════════════════════════════════════════ */
[data-design="a"] .rf-ambient-a {
  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="a"] .rf-ambient-a__cuts {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
[data-design="a"] .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="a"] .rf-ambient-a__cut--top {
  top: 26%;
  animation: fw-cut-draw 22s linear infinite;
}
[data-design="a"] .rf-ambient-a__cut--bot {
  top: 74%;
  animation: fw-cut-draw 28s linear infinite;
  animation-delay: -7s;
}
[data-design="a"] .rf-ambient-a__inner {
  position: relative;
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  gap: var(--fw-bay);
}
[data-design="a"] .rf-keynote {
  font-family: var(--fw-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fw-shadow);
}
[data-design="a"] .rf-ambient-a__title {
  font-family: var(--fw-display);
  font-weight: 600;
  font-size: clamp(36px, 6vw, 88px);
  letter-spacing: -0.02em;
  line-height: 0.96;
  color: var(--fw-ink);
  max-width: 18ch;
}
[data-design="a"] .rf-ambient-a__body {
  font-family: var(--fw-body);
  font-size: clamp(16px, 1.3vw, 19px);
  line-height: 1.6;
  color: var(--fw-ink);
  max-width: 64ch;
  display: grid;
  gap: var(--fw-board);
}
[data-design="a"] .rf-ambient-a__strings {
  border-top: 1px solid var(--fw-rebar);
  padding-top: var(--fw-bay);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--fw-bay);
}
[data-design="a"] .rf-service-item {
  display: flex;
  gap: var(--fw-board);
  align-items: flex-start;
}
[data-design="a"] .rf-service-item__num {
  font-family: var(--fw-display);
  font-size: 22px;
  color: var(--fw-rebar);
  letter-spacing: -0.01em;
  flex-shrink: 0;
  padding-top: 2px;
}
[data-design="a"] .rf-service-item__title {
  font-family: var(--fw-display);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--fw-ink);
  display: block;
  margin-bottom: var(--fw-joint);
}
[data-design="a"] .rf-service-item__desc {
  font-family: var(--fw-body);
  font-size: 16px;
  line-height: 1.55;
  color: var(--fw-shadow);
}
@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; }
}
@media (prefers-reduced-motion: reduce) {
  [data-design="a"] .rf-ambient-a__cut {
    animation-play-state: paused;
    transform: scaleX(1);
    opacity: 0.12;
  }
}

/* ═══════════════════════════════════════════════════════════════
   E4 — AMBIENT-B (curing slab) — Process section
═══════════════════════════════════════════════════════════════ */
[data-design="a"] .rf-ambient-b {
  position: relative;
  padding: clamp(64px, 10vw, 112px) clamp(16px, 4vw, 48px);
  overflow: hidden;
  isolation: isolate;
}
[data-design="a"] .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="a"] .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="a"] .rf-ambient-b__inner {
  position: relative;
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  gap: var(--fw-bay);
  color: var(--fw-bone);
}
[data-design="a"] .rf-ambient-b__title {
  font-family: var(--fw-display);
  font-weight: 500;
  font-size: clamp(28px, 4.5vw, 56px);
  letter-spacing: -0.015em;
  line-height: 1;
  color: var(--fw-bone);
  max-width: 22ch;
}
[data-design="a"] .rf-ambient-b__body {
  font-family: var(--fw-body);
  font-size: clamp(16px, 1.2vw, 18px);
  line-height: 1.6;
  max-width: 68ch;
  color: var(--fw-bone);
}
[data-design="a"] .rf-ambient-b .rf-keynote {
  color: rgba(242,239,232,0.7);
}
[data-design="a"] .rf-process-list {
  list-style: decimal;
  padding-left: 1.6em;
  display: grid;
  gap: var(--fw-board);
}
[data-design="a"] .rf-process-list li {
  line-height: 1.55;
}
[data-design="a"] .rf-process-list strong {
  font-weight: 600;
}
@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="a"] .rf-ambient-b__slab,
  [data-design="a"] .rf-ambient-b__aggregate { animation-play-state: paused; }
}

/* ═══════════════════════════════════════════════════════════════
   CREDENTIALS
═══════════════════════════════════════════════════════════════ */
[data-design="a"] .rf-credentials {
  background: var(--fw-bone);
  padding: clamp(64px, 10vw, 112px) clamp(16px, 4vw, 48px);
  border-top: 1px solid var(--fw-rebar);
}
[data-design="a"] .rf-credentials__inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  gap: var(--fw-bay);
}
[data-design="a"] .rf-credentials__title {
  font-family: var(--fw-display);
  font-weight: 600;
  font-size: clamp(28px, 4vw, 52px);
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--fw-ink);
}
[data-design="a"] .rf-credentials__list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--fw-board);
}
[data-design="a"] .rf-credential-plate {
  padding: var(--fw-bay);
  background: var(--fw-page);
  border: 1px solid var(--fw-rebar);
  border-radius: var(--fw-r-cast);
  display: flex;
  flex-direction: column;
  gap: var(--fw-joint);
}
[data-design="a"] .rf-credential-plate__label {
  font-family: var(--fw-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fw-shadow);
}
[data-design="a"] .rf-credential-plate__value {
  font-family: var(--fw-display);
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--fw-ink);
}

/* ═══════════════════════════════════════════════════════════════
   REPEATED FUNNEL CTA
═══════════════════════════════════════════════════════════════ */
[data-design="a"] .rf-repeat-cta {
  background: var(--fw-bone);
  border-top: 1px solid var(--fw-rebar);
  padding: clamp(64px, 10vw, 112px) clamp(16px, 4vw, 48px);
}
[data-design="a"] .rf-repeat-cta__inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  gap: var(--fw-board);
}
[data-design="a"] .rf-repeat-cta__copy {
  font-family: var(--fw-body);
  font-size: clamp(16px, 1.3vw, 19px);
  color: var(--fw-shadow);
  max-width: 58ch;
  line-height: 1.55;
}

/* ═══════════════════════════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════════════════════════ */
[data-design="a"] .rf-footer {
  background: var(--fw-bone);
  border-top: 1px solid var(--fw-rebar);
  padding: clamp(64px, 8vw, 96px) clamp(16px, 4vw, 48px) 0;
}
[data-design="a"] .rf-footer__inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--fw-bay);
  padding-bottom: var(--fw-pour);
  border-bottom: 1px solid var(--fw-rebar);
}
[data-design="a"] .rf-footer__block {
  display: flex;
  flex-direction: column;
  gap: var(--fw-board);
}
[data-design="a"] .rf-footer__tel,
[data-design="a"] .rf-footer__email {
  font-family: var(--fw-mono);
  font-size: clamp(16px, 1.4vw, 20px);
  text-decoration: none;
  color: var(--fw-ink);
  letter-spacing: 0.02em;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}
[data-design="a"] .rf-footer__tel:hover,
[data-design="a"] .rf-footer__email:hover {
  color: var(--fw-rust);
}
[data-design="a"] .rf-footer__line {
  font-family: var(--fw-mono);
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--fw-shadow);
}
[data-design="a"] .rf-footer__nav {
  font-family: var(--fw-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--fw-shadow);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  transition: color var(--fw-set);
}
[data-design="a"] .rf-footer__nav:hover { color: var(--fw-ink); }
[data-design="a"] .rf-footer__base {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--fw-board) 0 var(--fw-bay);
  position: relative;
  overflow: hidden;
}
[data-design="a"] .rf-footer__draw-line {
  position: absolute;
  top: 0;
  left: 0;
  height: 1px;
  width: 100%;
  background: linear-gradient(90deg, transparent 0%, var(--fw-ink) 50%, transparent 100%);
  opacity: 0.14;
  animation: fw-footer-draw 22s linear infinite;
}
[data-design="a"] .rf-footer__copy {
  font-family: var(--fw-mono);
  font-size: 12px;
  letter-spacing: 0.07em;
  color: var(--fw-shadow);
  padding-top: var(--fw-board);
}
@keyframes fw-footer-draw {
  0%   { transform: translateX(-100%); }
  100% { transform: translateX(100%);  }
}
@media (prefers-reduced-motion: reduce) {
  [data-design="a"] .rf-footer__draw-line { animation: none; opacity: 0.1; }
}

/* ═══════════════════════════════════════════════════════════════
   MOBILE — h-scroll prevention (required at bottom of styles.css)
═══════════════════════════════════════════════════════════════ */
[data-design="a"].dq-design,
[data-design="a"] .dq-design {
  max-width: 100%;
  overflow-x: clip;
}
[data-design="a"] * {
  min-width: 0;
}
[data-design="a"] img,
[data-design="a"] svg:not([data-keep-size]) {
  max-width: 100%;
  height: auto;
}

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