/* ═══════════════════════════════════════════════════════════════
   Gibson Roofing Portland — Design A
   Slot-scope: [data-design="a"]
   Keyframes prefixed: exsys-  (design grammar preserved)
   ═══════════════════════════════════════════════════════════════ */

/* ── Tokens ──────────────────────────────────────────────────── */
[data-design="a"] {
  --design-a-primary:   #D62828;
  --ink:                #0E1115;
  --ink-2:              #2A2F37;
  --paper:              #F2EFE8;
  --paper-2:            #E8E3D8;
  --rule:               #C9C2B4;
  --guide:              #4A6FA5;
  --muted:              #6B6F76;
  --sys-structural:     #D62828;
  --sys-mechanical:     #1D6FB8;
  --sys-electrical:     #2A9D45;
  --sys-ventilation:    #F4B400;
  --critical:           #9E1212;
  --success:            var(--sys-electrical);

  --font-display: "Inter Tight", "Helvetica Now Display", -apple-system, system-ui, sans-serif;
  --font-body:    "Inter", -apple-system, system-ui, sans-serif;
  --font-mono:    "JetBrains Mono", "IBM Plex Mono", ui-monospace, Menlo, monospace;
  --font-stamp:   "Times New Roman", Times, serif;

  --t-meta:  11px;
  --t-cap:   13px;
  --t-body:  16px;
  --t-lead:  20px;
  --t-h3:    24px;
  --t-h2:    36px;
  --t-h1:    64px;
  --t-hero:  clamp(40px, 6vw, 80px);

  --gap-hair:      1px;
  --gap-tight:     4px;
  --gap-x:         8px;
  --gap-row:       16px;
  --gap-block:     24px;
  --gap-stack:     48px;
  --gap-section:   96px;
  --gap-section-m: 64px;
  --gap-section-s: 48px;

  --ease-snap:  cubic-bezier(0.16, 1, 0.3, 1);
  --ease-draft: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-fast:   160ms;
  --dur-base:   320ms;
  --dur-draw:   1400ms;

  --r-0: 0;
  --r-1: 2px;
  --r-2: 4px;

  --elev-ring:   0 0 0 1px var(--rule);
  --elev-card:   0 0 0 1px var(--rule), 0 1px 0 var(--rule);
  --elev-drawer: 0 0 0 1px var(--ink), 0 24px 64px -32px rgba(14,17,21,0.45);

  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--t-body);
  line-height: 1.6;
  font-variant-numeric: tabular-nums;
}

/* ── Reset / base ────────────────────────────────────────────── */
[data-design="a"] *, [data-design="a"] *::before, [data-design="a"] *::after {
  box-sizing: border-box;
}
[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"] figure,
[data-design="a"] fieldset {
  margin: 0;
  padding: 0;
}
[data-design="a"] ul,
[data-design="a"] ol { list-style: none; }
[data-design="a"] a { color: inherit; }
[data-design="a"] button { font-family: inherit; }

/* ── Utility: rf-meta ─────────────────────────────────────────── */
[data-design="a"] .rf-meta {
  font-family: var(--font-mono);
  font-size: var(--t-meta);
  letter-spacing: 0.12em;
  color: var(--muted);
  text-transform: uppercase;
  margin: 0;
}
[data-design="a"] .rf-h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.4vw, 36px);
  letter-spacing: -0.015em;
  line-height: 1.1;
  margin: 0;
  color: var(--ink);
}
[data-design="a"] .rf-body {
  font-size: var(--t-body);
  line-height: 1.6;
  color: var(--ink-2);
}

/* ═══════════════════════════════════════════════════════════════
   E1 — HEADER
   ═══════════════════════════════════════════════════════════════ */
[data-design="a"] .rf-header {
  position: relative;
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
  z-index: 100;
}
[data-design="a"] .rf-header__bar {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px clamp(16px, 4vw, 40px);
}
/* E1: atmospheric layer — ridgeline draws across, 28s cycle */
[data-design="a"] .rf-header__atmos {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  opacity: 0.18;
}
[data-design="a"] .rf-header__detail polyline,
[data-design="a"] .rf-header__detail line {
  fill: none;
  stroke: var(--ink);
  stroke-width: 1;
  stroke-linecap: square;
  vector-effect: non-scaling-stroke;
  stroke-dasharray: 300;
  stroke-dashoffset: 300;
  animation: exsys-header-draw 28s var(--ease-draft) infinite;
}
[data-design="a"] .rf-header__dim {
  stroke: var(--sys-structural) !important;
}
[data-design="a"] .rf-header__dimlabel {
  fill: var(--sys-structural);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.08em;
  opacity: 0;
  animation: exsys-header-label 28s var(--ease-snap) infinite;
}
@keyframes exsys-header-draw {
  0%   { stroke-dashoffset: 300; opacity: 0; }
  18%  { stroke-dashoffset: 0;   opacity: 1; }
  72%  { stroke-dashoffset: 0;   opacity: 1; }
  86%  { stroke-dashoffset: 0;   opacity: 0; }
  100% { stroke-dashoffset: 300; opacity: 0; }
}
@keyframes exsys-header-label {
  0%, 24% { opacity: 0; }
  28%, 70% { opacity: 1; }
  84%, 100% { opacity: 0; }
}

/* Logo */
[data-design="a"] .rf-logo {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  text-decoration: none;
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -0.01em;
}
[data-design="a"] .rf-logo__mark { display: inline-flex; }

/* Hamburger */
[data-design="a"] .rf-burger {
  display: inline-flex;
  flex-direction: column;
  gap: 5px;
  padding: 12px;
  background: transparent;
  border: 1px solid var(--ink);
  border-radius: 0;
  cursor: pointer;
  min-width: 44px;
  min-height: 44px;
  justify-content: center;
  transition: background var(--dur-fast) var(--ease-snap);
}
[data-design="a"] .rf-burger__line {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--ink);
  transition: transform var(--dur-fast) var(--ease-snap);
}
[data-design="a"] .rf-burger:hover { background: var(--ink); }
[data-design="a"] .rf-burger:hover .rf-burger__line { background: var(--paper); }
[data-design="a"] .rf-burger:focus-visible { outline: 2px solid var(--sys-structural); outline-offset: 2px; }

/* Drawer */
[data-design="a"] .rf-drawer {
  position: fixed;
  inset: 0;
  background: rgba(14,17,21,0.18);
  z-index: 200;
  display: flex;
  justify-content: flex-end;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-base) var(--ease-snap);
}
[data-design="a"] .rf-drawer[hidden] { display: none; }
[data-design="a"] .rf-drawer[data-open="true"] {
  opacity: 1;
  pointer-events: auto;
}
[data-design="a"] .rf-drawer__sheet {
  width: min(440px, 100vw);
  height: 100%;
  background: var(--paper);
  box-shadow: var(--elev-drawer);
  padding: clamp(20px, 4vw, 40px);
  transform: translateX(24px);
  transition: transform var(--dur-base) var(--ease-snap);
  display: flex;
  flex-direction: column;
  gap: 32px;
  overflow-y: auto;
}
[data-design="a"] .rf-drawer[data-open="true"] .rf-drawer__sheet {
  transform: translateX(0);
}
[data-design="a"] .rf-drawer__title {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-bottom: 1px solid var(--ink);
  padding-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
[data-design="a"] .rf-drawer__nav {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
[data-design="a"] .rf-drawer__nav .rf-nav-a {
  display: grid;
  grid-template-columns: 36px 1fr;
  align-items: baseline;
  text-decoration: none;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 24px;
  letter-spacing: -0.01em;
  min-height: 44px;
}
[data-design="a"] .rf-drawer__nav .rf-nav-a::before {
  content: attr(data-no);
  color: var(--guide);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}
[data-design="a"] .rf-drawer__nav .rf-nav-a:hover { color: var(--sys-structural); }
[data-design="a"] .rf-drawer__ctas {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-top: 8px;
  border-top: 1px solid var(--rule);
}
[data-design="a"] .rf-drawer__phone {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-decoration: none;
  color: var(--ink-2);
  padding: 10px 0;
  min-height: 44px;
  display: flex;
  align-items: center;
}
[data-design="a"] .rf-drawer__close {
  align-self: flex-start;
  margin-top: auto;
  background: transparent;
  border: 1px solid var(--ink);
  padding: 10px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  cursor: pointer;
  border-radius: 0;
  min-width: 44px;
  min-height: 44px;
}
[data-design="a"] .rf-drawer__close:hover { background: var(--ink); color: var(--paper); }

/* ═══════════════════════════════════════════════════════════════
   E3 — HERO (unique animated backdrop: roofline-draw + course-lay)
   + E2 primary CTA
   ═══════════════════════════════════════════════════════════════ */
[data-design="a"] .rf-hero {
  position: relative;
  min-height: 72vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: #1a1e24;
}

/* E3: animated backdrop — z-index BELOW text, pointer-events:none */
[data-design="a"] .rf-hero__backdrop {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
[data-design="a"] .rf-hero__roof-svg {
  width: 100%;
  height: 100%;
  display: block;
}

/* Course-lay: each rect fades in staggered, then sustains slow opacity breath */
[data-design="a"] .rf-course {
  fill: rgba(200, 190, 175, 0.08);
  animation:
    exsys-course-arrive 1.8s var(--ease-snap) both,
    exsys-course-breath 9s ease-in-out infinite;
  animation-delay:
    calc(var(--ci) * 0.08s),
    calc(var(--ci) * 0.08s + 1.8s);
}
[data-design="a"] .rf-course--r {
  fill: rgba(160, 155, 145, 0.07);
  animation-delay:
    calc(var(--ci) * 0.07s + 0.04s),
    calc(var(--ci) * 0.07s + 1.85s);
}
@keyframes exsys-course-arrive {
  0%   { opacity: 0; transform: translateY(6px); }
  100% { opacity: 1; transform: translateY(0); }
}
@keyframes exsys-course-breath {
  0%, 100% { opacity: 0.65; }
  50%       { opacity: 1;    }
}

/* Ridgeline draws across (E3 signature) */
[data-design="a"] .rf-hero__ridge {
  stroke: rgba(210, 40, 40, 0.7);
  stroke-width: 2;
  fill: none;
  stroke-dasharray: 800;
  stroke-dashoffset: 800;
  animation: exsys-ridge-draw 1.6s var(--ease-draft) 0.6s both;
}
[data-design="a"] .rf-hero__ridge--right {
  animation-delay: 1.0s;
}
[data-design="a"] .rf-hero__ridge-cap {
  stroke: rgba(255, 255, 255, 0.18);
  stroke-width: 1;
  fill: none;
  stroke-dasharray: 800;
  stroke-dashoffset: 800;
  animation: exsys-ridge-draw 2.0s var(--ease-draft) 1.2s both;
}
[data-design="a"] .rf-hero__ridge-cap--right {
  animation-delay: 1.5s;
}
@keyframes exsys-ridge-draw {
  to { stroke-dashoffset: 0; }
}

/* Dimension annotation on ridge */
[data-design="a"] .rf-hero__dim-line {
  stroke: rgba(210, 40, 40, 0.4);
  stroke-width: 1;
  fill: none;
  stroke-dasharray: 60;
  stroke-dashoffset: 60;
  animation: exsys-ridge-draw 0.8s var(--ease-draft) 2.0s both;
}
[data-design="a"] .rf-hero__dim-tick {
  stroke: rgba(210, 40, 40, 0.4);
  stroke-width: 1;
  fill: none;
  stroke-dasharray: 30;
  stroke-dashoffset: 30;
  animation: exsys-ridge-draw 0.5s var(--ease-draft) 2.5s both;
}
[data-design="a"] .rf-hero__dim-label {
  font-family: var(--font-mono);
  font-size: clamp(8px, 1.2vw, 12px);
  letter-spacing: 0.12em;
  fill: rgba(210, 40, 40, 0.55);
  text-anchor: start;
  opacity: 0;
  animation: exsys-dim-label 0.5s var(--ease-snap) 2.8s both;
}
@keyframes exsys-dim-label {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* Hero text — position:relative + z-index above backdrop, opacity:1 at first paint */
[data-design="a"] .rf-hero__content {
  position: relative;
  z-index: 2;
  padding: clamp(64px, 10vw, 120px) clamp(20px, 6vw, 80px);
  max-width: 860px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
[data-design="a"] .rf-hero__content .rf-meta {
  color: rgba(200, 194, 180, 0.7);
  opacity: 1;
}
[data-design="a"] .rf-hero__headline {
  font-family: var(--font-display);
  font-size: var(--t-hero);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.05;
  color: #F2EFE8;
  opacity: 1;
  max-width: 22ch;
}
[data-design="a"] .rf-hero__subtitle {
  font-family: var(--font-body);
  font-size: clamp(15px, 1.8vw, 20px);
  line-height: 1.5;
  color: rgba(220, 215, 205, 0.82);
  opacity: 1;
  max-width: 52ch;
}
[data-design="a"] .rf-hero__proof {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: rgba(180, 172, 160, 0.65);
  text-transform: uppercase;
  opacity: 1;
}

/* E2 — primary CTA (hero variant) */
[data-design="a"] .rf-cta {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 16px;
  padding: 16px 24px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: var(--r-1);
  border: 1px solid var(--ink);
  transition: transform var(--dur-fast) var(--ease-snap), background var(--dur-fast) var(--ease-snap);
  overflow: hidden;
  min-height: 44px;
  cursor: pointer;
}
[data-design="a"] .rf-cta--hero {
  background: var(--sys-structural);
  border-color: var(--sys-structural);
  margin-top: 8px;
}
[data-design="a"] .rf-cta--hero:hover { background: #b81e1e; border-color: #b81e1e; }
[data-design="a"] .rf-cta--primary {
  background: var(--ink);
  border-color: var(--ink);
}
[data-design="a"] .rf-cta--primary:hover { background: #000; }
[data-design="a"] .rf-cta:active { transform: scale(0.985); }
[data-design="a"] .rf-cta:focus-visible { outline: 2px solid var(--sys-structural); outline-offset: 3px; }
[data-design="a"] .rf-cta__label { position: relative; z-index: 1; }
[data-design="a"] .rf-cta__arrow { overflow: visible; flex-shrink: 0; }
[data-design="a"] .rf-cta__shaft {
  stroke: var(--paper);
  stroke-width: 1.5;
  fill: none;
  stroke-dasharray: 26;
  stroke-dashoffset: 8;
  transition: stroke-dashoffset var(--dur-base) var(--ease-snap);
}
[data-design="a"] .rf-cta__head {
  stroke: var(--paper);
  stroke-width: 1.5;
  fill: none;
  stroke-linejoin: miter;
  transform: translateX(0);
  transition: transform var(--dur-base) var(--ease-snap);
}
[data-design="a"] .rf-cta__rule {
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 10px;
  height: 1px;
  background: rgba(242,239,232,0.5);
  transform-origin: left;
  animation: exsys-cta-breath 4.4s ease-in-out infinite;
}
[data-design="a"] .rf-cta:hover .rf-cta__shaft { stroke-dashoffset: 0; }
[data-design="a"] .rf-cta:hover .rf-cta__head  { transform: translateX(6px); }
[data-design="a"] .rf-cta:hover .rf-cta__rule  { height: 2px; animation-play-state: paused; transform: scaleX(1); }
@keyframes exsys-cta-breath {
  0%, 100% { transform: scaleX(0.5); opacity: 0.6; }
  50%       { transform: scaleX(1);   opacity: 1;   }
}

/* ═══════════════════════════════════════════════════════════════
   E6 — POINTER (must be last thing before #funnel)
   Water-shed / forward-progress register
   ═══════════════════════════════════════════════════════════════ */
[data-design="a"] .exsys-pointer {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px clamp(20px, 6vw, 80px);
  background: var(--paper-2);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  opacity: 1;
  min-height: 56px;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}
[data-design="a"] .exsys-pointer__counter {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  opacity: 0.75;
  flex-shrink: 0;
}
[data-design="a"] .exsys-pointer__counter-now {
  display: inline-block;
  min-width: 1ch;
  animation: exsys-pointer-tick 320ms ease-out;
}
[data-design="a"] .exsys-pointer__bar {
  position: relative;
  flex: 1;
  height: 2px;
  background: currentColor;
  opacity: 0.15;
  border-radius: 1px;
  overflow: hidden;
}
[data-design="a"] .exsys-pointer__bar-fill {
  position: absolute;
  inset: 0;
  width: var(--exsys-pointer-progress, 20%);
  background: var(--sys-structural);
  opacity: 1;
  transition: width 480ms cubic-bezier(0.22, 0.61, 0.36, 1);
}
[data-design="a"] .exsys-pointer__chev {
  font-size: 20px;
  opacity: 0.6;
  flex-shrink: 0;
  animation: exsys-pointer-chev 4s ease-in-out infinite;
}
[data-design="a"] .exsys-pointer__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  flex-shrink: 0;
}
@keyframes exsys-pointer-tick {
  0%   { transform: translateY(-6px); opacity: 0; }
  100% { transform: translateY(0);    opacity: 1; }
}
@keyframes exsys-pointer-chev {
  0%, 100% { transform: translateX(0);   opacity: 0.45; }
  50%       { transform: translateX(4px); opacity: 0.9; }
}

/* ═══════════════════════════════════════════════════════════════
   E5 — FUNNEL (5-step roofing qualifying intake)
   ═══════════════════════════════════════════════════════════════ */
[data-design="a"] .rf-interactive {
  padding: var(--gap-section) clamp(16px, 4vw, 40px);
  background: var(--paper);
  border-top: 1px solid var(--ink);
}
[data-design="a"] .rf-funnel__masthead {
  max-width: 720px;
  margin: 0 0 48px;
}
[data-design="a"] .rf-funnel__masthead .rf-meta {
  margin: 0 0 12px;
}
[data-design="a"] .rf-funnel__masthead .rf-h2 {
  margin: 0 0 16px;
}
[data-design="a"] .rf-funnel__sub {
  font-size: var(--t-body);
  line-height: 1.6;
  color: var(--ink-2);
  margin: 0 0 32px;
  max-width: 58ch;
}
[data-design="a"] .rf-funnel__index {
  list-style: none;
  padding: 16px 0 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  border-top: 1px solid var(--ink);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
}
[data-design="a"] .rf-funnel__index li {
  display: flex;
  gap: 8px;
  align-items: baseline;
  padding: 12px 8px;
  color: var(--muted);
  border-right: 1px solid var(--rule);
  flex-wrap: wrap;
}
[data-design="a"] .rf-funnel__index li:last-child { border-right: 0; }
[data-design="a"] .rf-funnel__index li span { color: var(--guide); }
[data-design="a"] .rf-funnel__index li.is-current {
  color: var(--ink);
  background: var(--paper-2);
}
[data-design="a"] .rf-funnel__index li.is-done { color: var(--ink); }
[data-design="a"] .rf-funnel__index li.is-done::after {
  content: "✓";
  margin-left: auto;
  color: var(--sys-electrical);
}

[data-design="a"] .rf-funnel {
  position: relative;
  min-height: 380px;
}
[data-design="a"] .rf-funnel__sheet {
  background: var(--paper);
  border: 1px solid var(--ink);
  padding: 32px clamp(20px, 3vw, 40px);
  transition: opacity var(--dur-base) var(--ease-snap), transform var(--dur-base) var(--ease-snap);
  opacity: 1;
  transform: translateX(0);
}
[data-design="a"] .rf-funnel__sheet[hidden] { display: none; }
[data-design="a"] .rf-funnel__sheet.is-leaving { opacity: 0; transform: translateX(-24px); }
[data-design="a"] .rf-funnel__sheet.is-entering { opacity: 0; transform: translateX(24px); }

[data-design="a"] .rf-funnel__title {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-bottom: 16px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--ink);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  flex-wrap: wrap;
  gap: 8px;
}
[data-design="a"] .rf-funnel__title .rf-funnel__sheet-no { color: var(--muted); }

[data-design="a"] .rf-funnel fieldset { border: 0; padding: 0; margin: 0 0 32px; }
[data-design="a"] .rf-field__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 16px;
}
[data-design="a"] .rf-field__req {
  color: var(--sys-structural);
  font-size: 8px;
  vertical-align: super;
}
[data-design="a"] .rf-funnel__choices {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}
[data-design="a"] .rf-funnel__choice {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--rule);
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease-snap), background var(--dur-fast) var(--ease-snap);
  font-size: 15px;
  min-height: 44px;
}
[data-design="a"] .rf-funnel__choice:hover { border-color: var(--ink); }
[data-design="a"] .rf-funnel__choice input { accent-color: var(--sys-structural); }
[data-design="a"] .rf-funnel__choice:has(input:checked) {
  border-color: var(--ink);
  background: var(--paper-2);
}

/* Sheet 5 grid */
[data-design="a"] .rf-funnel__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px 24px;
  margin-bottom: 32px;
}
[data-design="a"] .rf-field--wide { grid-column: 1 / -1; }
[data-design="a"] .rf-field { display: flex; flex-direction: column; gap: 6px; }
[data-design="a"] .rf-input {
  display: block;
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--ink);
  background: var(--paper);
  font-family: var(--font-body);
  font-size: var(--t-body);
  color: var(--ink);
  border-radius: var(--r-1);
  outline: none;
  transition: border-color var(--dur-fast) var(--ease-snap);
  min-height: 44px;
}
[data-design="a"] .rf-input:focus-visible {
  border-color: var(--sys-structural);
  box-shadow: inset 0 0 0 1px var(--sys-structural);
}
[data-design="a"] .rf-input--area {
  min-height: 80px;
  resize: vertical;
}

/* Funnel actions */
[data-design="a"] .rf-funnel__actions {
  display: flex;
  gap: 16px;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
  flex-wrap: wrap;
}
[data-design="a"] .rf-funnel__actions [data-stamp] { margin-left: auto; }
[data-design="a"] .rf-funnel__actions [data-stamp][hidden] { display: none; }

/* Funnel note (leak shortcut) */
[data-design="a"] .rf-funnel__note {
  margin-top: 16px;
  padding: 12px 16px;
  border: 1px solid var(--rule);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ink-2);
  background: var(--paper-2);
}
[data-design="a"] .rf-funnel__note[hidden] { display: none; }
[data-design="a"] .rf-funnel__note-link {
  color: var(--sys-mechanical);
  font-weight: 600;
}

/* Buttons */
[data-design="a"] .rf-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border-radius: var(--r-1);
  cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-snap), background var(--dur-fast) var(--ease-snap);
  border: 1px solid var(--ink);
  min-height: 44px;
  min-width: 44px;
}
[data-design="a"] .rf-btn--primary { background: var(--ink); color: var(--paper); }
[data-design="a"] .rf-btn--primary:hover { background: #000; }
[data-design="a"] .rf-btn--secondary { background: var(--paper); color: var(--ink); }
[data-design="a"] .rf-btn--secondary:hover { background: var(--paper-2); }
[data-design="a"] .rf-btn:active { transform: scale(0.985); }
[data-design="a"] .rf-btn:focus-visible { outline: 2px solid var(--sys-structural); outline-offset: 2px; }

/* Stamps */
[data-design="a"] .rf-stamp {
  display: inline-flex;
  padding: 6px 10px;
  border: 1.5px solid currentColor;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  transform: rotate(-2deg);
  animation: exsys-stamp 200ms var(--ease-snap);
}
[data-design="a"] .rf-stamp--field-verified { color: var(--sys-mechanical); }
[data-design="a"] .rf-stamp--in-review      { color: var(--sys-ventilation); }
[data-design="a"] .rf-stamp--approved       { color: var(--sys-structural); }
@keyframes exsys-stamp {
  0%   { opacity: 0; transform: rotate(-2deg) scale(1.12); }
  100% { opacity: 1; transform: rotate(-2deg) scale(1); }
}

/* Issued state */
[data-design="a"] .rf-funnel__issued {
  margin-top: 32px;
  padding: 40px;
  border: 2px solid var(--ink);
  display: grid;
  gap: 16px;
}
[data-design="a"] .rf-funnel__issued[hidden] { display: none; }
[data-design="a"] .rf-issued-stamp {
  display: inline-block;
  padding: 16px 24px;
  border: 3px double var(--sys-structural);
  color: var(--sys-structural);
  font-family: var(--font-stamp);
  font-weight: 700;
  font-size: clamp(20px, 3vw, 28px);
  line-height: 1;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transform: rotate(-3.5deg);
  justify-self: start;
  animation: exsys-issued-stamp 480ms var(--ease-snap);
}
[data-design="a"] .rf-funnel__thanks {
  font-size: 18px;
  line-height: 1.5;
  color: var(--ink);
  margin: 0;
}
[data-design="a"] .rf-funnel__thanks a { color: var(--sys-mechanical); }
@keyframes exsys-issued-stamp {
  0%   { opacity: 0; transform: rotate(-3.5deg) scale(1.18); }
  60%  { opacity: 1; transform: rotate(-3.5deg) scale(0.98); }
  100% { opacity: 1; transform: rotate(-3.5deg) scale(1); }
}

/* Below-funnel trust rail */
[data-design="a"] .rf-funnel__trust {
  display: flex;
  gap: 24px;
  padding-top: 32px;
  margin-top: 32px;
  border-top: 1px solid var(--rule);
  flex-wrap: wrap;
  align-items: center;
}
[data-design="a"] .rf-trust__phone {
  text-decoration: none;
  color: var(--ink);
  font-weight: 600;
}
[data-design="a"] .rf-trust__phone:hover { color: var(--sys-structural); }

/* ═══════════════════════════════════════════════════════════════
   E4 (Ambient B) — Services: exploded roof assembly
   ═══════════════════════════════════════════════════════════════ */
[data-design="a"] .rf-ambient-b {
  padding: var(--gap-section) clamp(16px, 4vw, 40px);
  background: var(--paper-2);
  border-top: 1px solid var(--rule);
}
[data-design="a"] .rf-ambient-b__head {
  max-width: 60ch;
  margin: 0 0 56px;
}
[data-design="a"] .rf-ambient-b__head .rf-meta { margin: 0 0 16px; }
[data-design="a"] .rf-ambient-b__head .rf-h2   { margin: 0 0 20px; }
[data-design="a"] .rf-ambient-b__head .rf-body  { font-size: var(--t-body); line-height: 1.6; color: var(--ink-2); }
[data-design="a"] .rf-services__list {
  margin-top: 16px;
  padding-left: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--ink-2);
}
[data-design="a"] .rf-services__list li::before {
  content: "— ";
  color: var(--sys-structural);
}

[data-design="a"] .rf-ambient-b__motion {
  margin: 0;
  padding: 24px;
  background: var(--paper);
  border: 1px solid var(--rule);
}
[data-design="a"] .rf-ambient-b__motion svg {
  width: 100%;
  height: auto;
  display: block;
  color: var(--ink);
  overflow: visible;
}

[data-design="a"] .rf-layer polygon {
  fill: var(--paper);
  stroke: var(--ink);
  stroke-width: 1.5;
  transform-origin: 50% 50%;
  transition: transform var(--dur-base) var(--ease-snap);
}
[data-design="a"] .rf-layer .rf-lead {
  stroke: var(--sys-structural);
  stroke-width: 1;
  stroke-dasharray: 60;
  stroke-dashoffset: 60;
  transition: stroke-dashoffset var(--dur-base) var(--ease-draft);
}
[data-design="a"] .rf-layer .rf-lead-label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  fill: var(--ink);
  opacity: 0;
  transition: opacity var(--dur-base) var(--ease-snap);
}
[data-design="a"] .rf-ambient-b__motion.is-active .rf-layer {
  animation: exsys-ambb-lift 20s var(--ease-snap) infinite;
}
[data-design="a"] .rf-ambient-b__motion.is-active .rf-layer--1 { animation-delay: 0s; }
[data-design="a"] .rf-ambient-b__motion.is-active .rf-layer--2 { animation-delay: 1s; }
[data-design="a"] .rf-ambient-b__motion.is-active .rf-layer--3 { animation-delay: 2s; }
[data-design="a"] .rf-ambient-b__motion.is-active .rf-layer--4 { animation-delay: 3s; }
[data-design="a"] .rf-ambient-b__motion.is-active .rf-layer--5 { animation-delay: 4s; }
[data-design="a"] .rf-ambient-b__motion.is-active .rf-layer .rf-lead { stroke-dashoffset: 0; }
[data-design="a"] .rf-ambient-b__motion.is-active .rf-layer .rf-lead-label { opacity: 1; }
@keyframes exsys-ambb-lift {
  0%, 90%, 100% { transform: translateY(0); }
  30%, 60%      { transform: translateY(-10px); }
}

/* ═══════════════════════════════════════════════════════════════
   E3 mid-page (Ambient A) — Process section with live section SVG
   ═══════════════════════════════════════════════════════════════ */
[data-design="a"] .rf-ambient-a {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  padding: var(--gap-section) clamp(16px, 4vw, 40px);
  align-items: start;
  background: var(--paper);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
[data-design="a"] .rf-ambient-a__copy .rf-meta { margin: 0 0 24px; }
[data-design="a"] .rf-ambient-a__copy .rf-h2   { margin: 0 0 24px; }
[data-design="a"] .rf-ambient-a__copy .rf-body  { font-size: var(--t-body); line-height: 1.6; color: var(--ink-2); max-width: 48ch; }
[data-design="a"] .rf-process__list {
  margin-top: 20px;
  padding-left: 0;
  counter-reset: proc;
  display: flex;
  flex-direction: column;
  gap: 16px;
  font-size: 15px;
  line-height: 1.6;
}
[data-design="a"] .rf-process__list li { padding-left: 0; }
[data-design="a"] .rf-body__note {
  margin-top: 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
  text-transform: uppercase;
}
[data-design="a"] .rf-legend {
  list-style: none;
  padding: 24px 0 0;
  margin: 32px 0 0;
  border-top: 1px solid var(--rule);
  display: grid;
  grid-template-columns: repeat(2, max-content);
  gap: 12px 32px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
[data-design="a"] .rf-legend li { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); }
[data-design="a"] .rf-legend__sw { width: 14px; height: 14px; border: 1px solid var(--ink); display: inline-block; }
[data-design="a"] .rf-legend__sw--s { background: var(--sys-structural); }
[data-design="a"] .rf-legend__sw--m { background: var(--sys-mechanical); }
[data-design="a"] .rf-legend__sw--e { background: var(--sys-electrical); }
[data-design="a"] .rf-legend__sw--v { background: var(--sys-ventilation); }

[data-design="a"] .rf-ambient-a__motion {
  width: 100%;
  max-width: 480px;
  justify-self: end;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  padding: 16px;
}
[data-design="a"] .rf-ambient-a__motion svg { width: 100%; height: auto; display: block; }
[data-design="a"] .rf-section__outline { fill: none; stroke: var(--ink); stroke-width: 1.5; }
[data-design="a"] .rf-section__floor   { stroke: var(--rule); stroke-width: 1; stroke-dasharray: 2 4; }
[data-design="a"] .rf-run { fill: none; stroke-width: 2.5; stroke-linecap: square; stroke-dasharray: 480; stroke-dashoffset: 480; }
[data-design="a"] .rf-ambient-a__motion .rf-run--s { stroke: var(--sys-structural); }
[data-design="a"] .rf-ambient-a__motion .rf-run--m { stroke: var(--sys-mechanical); }
[data-design="a"] .rf-ambient-a__motion .rf-run--e { stroke: var(--sys-electrical); }
[data-design="a"] .rf-ambient-a__motion .rf-run--v { stroke: var(--sys-ventilation); }
[data-design="a"] .rf-ambient-a__motion.is-active .rf-run { animation: exsys-amba-draw var(--dur-draw) var(--ease-draft) forwards; }
[data-design="a"] .rf-ambient-a__motion.is-active .rf-run--m { animation-delay: 200ms; }
[data-design="a"] .rf-ambient-a__motion.is-active .rf-run--e { animation-delay: 400ms; }
[data-design="a"] .rf-ambient-a__motion.is-active .rf-run--v { animation-delay: 600ms; }
[data-design="a"] .rf-flow { fill: var(--ink); opacity: 0; }
[data-design="a"] .rf-ambient-a__motion.is-active .rf-flow--s { fill: var(--sys-structural); opacity: 1; }
[data-design="a"] .rf-ambient-a__motion.is-active .rf-flow--m { fill: var(--sys-mechanical); opacity: 1; }
[data-design="a"] .rf-ambient-a__motion.is-active .rf-flow--e { fill: var(--sys-electrical); opacity: 1; }
[data-design="a"] .rf-ambient-a__motion.is-active .rf-flow--v { fill: var(--sys-ventilation); opacity: 1; }
[data-design="a"] .rf-section__dim       { stroke: var(--ink); stroke-width: 1; }
[data-design="a"] .rf-section__dim-label { fill: var(--muted); font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.12em; }
@keyframes exsys-amba-draw { to { stroke-dashoffset: 0; } }

/* ═══════════════════════════════════════════════════════════════
   Repeated CTA
   ═══════════════════════════════════════════════════════════════ */
[data-design="a"] .rf-repeat-cta {
  display: flex;
  justify-content: center;
  padding: var(--gap-section-s) clamp(16px, 4vw, 40px);
  background: var(--paper-2);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
[data-design="a"] .rf-repeat-cta .rf-cta {
  background: var(--ink);
  border-color: var(--ink);
}

/* ═══════════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════════ */
[data-design="a"] .rf-footer {
  padding: var(--gap-section-s) clamp(16px, 4vw, 40px);
  background: var(--paper);
  border-top: 1px solid var(--ink);
}
[data-design="a"] .rf-footer__cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  padding-bottom: 32px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--rule);
}
[data-design="a"] .rf-footer__col .rf-meta { margin: 0 0 12px; }
[data-design="a"] .rf-footer__col p {
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-2);
  margin: 0;
}
[data-design="a"] .rf-footer__phone a {
  text-decoration: none;
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
}
[data-design="a"] .rf-footer__phone a:hover { color: var(--sys-structural); }
[data-design="a"] .rf-footer__base {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted);
  text-transform: uppercase;
  flex-wrap: wrap;
  gap: 8px;
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 900px) {
  [data-design="a"] .rf-ambient-a {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: var(--gap-section-m) clamp(16px, 4vw, 32px);
  }
  [data-design="a"] .rf-ambient-a__motion {
    justify-self: stretch;
    max-width: 100%;
  }
  [data-design="a"] .rf-footer__cols {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 760px) {
  [data-design="a"] .rf-funnel__index { grid-template-columns: repeat(3, 1fr); }
  [data-design="a"] .rf-funnel__index li:nth-child(3) { border-right: 0; }
  [data-design="a"] .rf-funnel__grid { grid-template-columns: 1fr; }
  [data-design="a"] .rf-funnel__actions { flex-wrap: wrap; }
  [data-design="a"] .rf-funnel__actions [data-stamp] { margin-left: 0; order: -1; }
  [data-design="a"] .rf-ambient-b { padding: var(--gap-section-m) 16px; }
  [data-design="a"] .rf-ambient-b__head { margin-bottom: 32px; }
  [data-design="a"] .rf-layer .rf-lead-label { font-size: 8px; }
  [data-design="a"] .rf-footer__cols { grid-template-columns: 1fr; }
  [data-design="a"] .rf-hero { min-height: 85vh; }
}
@media (max-width: 560px) {
  [data-design="a"] .rf-header__atmos { opacity: 0.12; }
  [data-design="a"] .rf-logo__name { font-size: 16px; }
  [data-design="a"] .rf-ambient-a { padding: var(--gap-section-s) 16px; }
  [data-design="a"] .rf-funnel__index { grid-template-columns: 1fr 1fr; }
  [data-design="a"] .rf-funnel__index li:nth-child(2),
  [data-design="a"] .rf-funnel__index li:nth-child(4) { border-right: 0; }
  [data-design="a"] .exsys-pointer__label { display: none; }
}
@media (max-width: 380px) {
  [data-design="a"] .rf-funnel__sheet { padding: 20px 16px; }
  [data-design="a"] .rf-btn { padding: 10px 14px; font-size: 11px; letter-spacing: 0.1em; }
}

/* ═══════════════════════════════════════════════════════════════
   prefers-reduced-motion
   ═══════════════════════════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {
  [data-design="a"] .rf-header__detail polyline,
  [data-design="a"] .rf-header__detail line,
  [data-design="a"] .rf-header__dimlabel {
    animation: none;
    stroke-dashoffset: 0;
    opacity: 1;
  }
  [data-design="a"] .rf-drawer__sheet { transition: none; }
  [data-design="a"] .rf-course { animation: none; opacity: 0.8; }
  [data-design="a"] .rf-hero__ridge,
  [data-design="a"] .rf-hero__ridge--right,
  [data-design="a"] .rf-hero__ridge-cap,
  [data-design="a"] .rf-hero__ridge-cap--right,
  [data-design="a"] .rf-hero__dim-line,
  [data-design="a"] .rf-hero__dim-tick { animation: none; stroke-dashoffset: 0; }
  [data-design="a"] .rf-hero__dim-label { animation: none; opacity: 1; }
  [data-design="a"] .rf-cta__rule { animation: none; transform: scaleX(1); }
  [data-design="a"] .rf-cta__shaft,
  [data-design="a"] .rf-cta__head { transition: none; }
  [data-design="a"] .exsys-pointer__counter-now,
  [data-design="a"] .exsys-pointer__chev,
  [data-design="a"] .exsys-pointer__bar-fill { animation: none; transition: none; }
  [data-design="a"] .rf-funnel__sheet,
  [data-design="a"] .rf-funnel__sheet.is-leaving,
  [data-design="a"] .rf-funnel__sheet.is-entering { transition: none; transform: none; opacity: 1; }
  [data-design="a"] .rf-stamp,
  [data-design="a"] .rf-issued-stamp { animation: none; }
  [data-design="a"] .rf-ambient-b__motion.is-active .rf-layer { animation: none; }
  [data-design="a"] .rf-layer polygon { transition: none; }
  [data-design="a"] .rf-ambient-a__motion .rf-run { animation: none !important; stroke-dashoffset: 0 !important; }
  [data-design="a"] .rf-ambient-a__motion .rf-flow { animation-play-state: paused !important; }
}

/* ═══════════════════════════════════════════════════════════════
   MOBILE NO-HSCROLL HARD CONTRACT (append at bottom, per spec)
   ═══════════════════════════════════════════════════════════════ */
[data-design="a"].dq-design,
[data-design="a"] .dq-design { max-width: 100%; overflow-x: clip; }
[data-design="a"].dq-design * { min-width: 0; }
[data-design="a"].dq-design img,
[data-design="a"].dq-design 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; }