/* ===== PHASOR DESIGN — SLOT A — plumbing-austin ===== */
/* All selectors scoped to [data-design="a"].dq-design or [data-design="a"].dq-design descendants */
/* ZERO [data-design="a"].dq-design selectors — fully remapped to [data-design="a"] */

/* ===== DESIGN TOKENS ===== */
[data-design="a"] {
  --ph-graphite:    #16191c;
  --ph-graphite-2:  #1f2226;
  --ph-paper:       #f4f1ea;
  --ph-ink:         #e9e6e0;
  --ph-ink-dark:    #1a1a1a;
  --ph-muted:       #7b818a;
  --ph-line:        #2a2e34;
  --ph-line-paper:  #d8d2c2;
  --ph-copper:      #c08552;
  --ph-phosphor:    #b8e6a8;
  --ph-arc:         #4dd0c9;
  --ph-hot:         #d94a3b;
  --ph-success:     #7fb069;

  --font-display:   'GT America Mono', 'JetBrains Mono', ui-monospace, monospace;
  --font-body:      'Söhne', 'Inter', -apple-system, sans-serif;

  --ease-needle:    cubic-bezier(0.22, 1, 0.36, 1);
  --ease-current:   cubic-bezier(0.45, 0, 0.55, 1);
  --ease-stamp:     cubic-bezier(0.5, -0.05, 0.4, 1.15);

  --dur-flick:      120ms;
  --dur-settle:     240ms;
  --dur-register:   420ms;
  --dur-sweep:      24s;
  --dur-breath:     4.6s;
  --dur-energize:   11s;
  --dur-hum:        18s;

  --rad-0:          0px;
  --rad-1:          2px;
  --rad-pin:        999px;

  --elev-ring:      inset 0 0 0 1px var(--ph-line);
  --elev-bright:    inset 0 1px 0 0 color-mix(in oklab, var(--ph-ink) 14%, transparent);
  --elev-press:     inset 0 1px 0 0 color-mix(in oklab, #000 34%, transparent), inset 0 0 0 1px var(--ph-line);

  --space-pin-1:    4px;
  --space-pin-2:    8px;
  --space-pin-3:    12px;
  --space-clamp-4:  16px;
  --space-clamp-5:  24px;
  --space-clamp-6:  32px;
  --space-bay-7:    48px;
  --space-bay-8:    72px;
  --space-rack-9:   112px;
  --space-rack-10:  160px;
}

/* ===== ARTICLE RESET ===== */
[data-design="a"].dq-design {
  max-width: 100%;
  overflow-x: clip;
  background: var(--ph-graphite);
  color: var(--ph-ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
}
[data-design="a"].dq-design * {
  min-width: 0;
  box-sizing: border-box;
}
[data-design="a"].dq-design img,
[data-design="a"].dq-design svg:not([data-keep-size]) {
  max-width: 100%;
  height: auto;
}

/* ===== ELEMENT 1: HEADER ===== */
[data-design="a"] .rf-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--ph-graphite);
  border-bottom: 1px solid var(--ph-line);
}
[data-design="a"] .rf-header__trace {
  position: absolute;
  inset: auto 0 -1px 0;
  height: 40px;
  pointer-events: none;
  opacity: 0.7;
}
[data-design="a"] .rf-header__trace svg {
  width: 100%;
  height: 100%;
  display: block;
}
[data-design="a"] .rf-trace__rail {
  stroke: var(--ph-line);
  stroke-width: 1;
}
[data-design="a"] .rf-trace__wave {
  fill: none;
  stroke: var(--ph-phosphor);
  stroke-width: 1.25;
  stroke-linecap: round;
  filter: drop-shadow(0 0 4px color-mix(in oklab, var(--ph-phosphor) 60%, transparent));
  stroke-dasharray: 12 8;
  animation: a-trace-shift var(--dur-sweep, 24s) linear infinite;
}
[data-design="a"] .rf-trace__dot {
  fill: var(--ph-phosphor);
  filter: drop-shadow(0 0 6px var(--ph-phosphor));
}
@keyframes a-trace-shift {
  0%   { stroke-dashoffset: 0; }
  100% { stroke-dashoffset: -200; }
}
[data-design="a"] .rf-header__bar {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px clamp(20px, 4vw, 48px);
  max-width: 1440px;
  margin: 0 auto;
}
[data-design="a"] .rf-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ph-ink);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
[data-design="a"] .rf-logo__pin {
  color: var(--ph-copper);
  font-size: 9px;
}
[data-design="a"] .rf-burger {
  appearance: none;
  background: transparent;
  border: 1px solid var(--ph-line);
  width: 44px;
  height: 44px;
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  transition: border-color var(--dur-flick) var(--ease-needle);
}
@media (hover: hover) and (pointer: fine) {
  [data-design="a"] .rf-burger:hover {
    border-color: var(--ph-copper);
    outline: none;
  }
}
[data-design="a"] .rf-burger:focus-visible {
  border-color: var(--ph-copper);
  outline: 2px solid var(--ph-phosphor);
  outline-offset: 2px;
}
[data-design="a"] .rf-burger__bar {
  display: block;
  width: 18px;
  height: 1px;
  background: var(--ph-ink);
}
/* Drawer */
[data-design="a"] .rf-drawer {
  position: fixed;
  inset: 0;
  background: var(--ph-graphite-2);
  z-index: 60;
  padding: 96px clamp(20px, 6vw, 80px) 48px;
  transform: translateY(-100%);
  transition: transform 320ms var(--ease-needle);
  display: block;
  pointer-events: none;
}
[data-design="a"] .rf-drawer:not([hidden]) {
  transform: translateY(0);
  pointer-events: auto;
}
[data-design="a"] .rf-drawer[hidden] {
  display: block;
  pointer-events: none;
  transform: translateY(-100%);
}
[data-design="a"] .rf-drawer__close {
  position: absolute;
  top: 24px;
  right: clamp(20px, 4vw, 48px);
  appearance: none;
  background: transparent;
  border: 1px solid var(--ph-line);
  color: var(--ph-ink);
  width: 44px;
  height: 44px;
  cursor: pointer;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
}
[data-design="a"] .rf-nav {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
[data-design="a"] .rf-nav a {
  font-family: var(--font-display);
  font-size: clamp(28px, 6vw, 56px);
  color: var(--ph-ink);
  text-decoration: none;
  border-bottom: 1px solid var(--ph-line);
  padding-bottom: 18px;
  letter-spacing: -0.01em;
  transition: color var(--dur-flick) var(--ease-needle);
}
@media (hover: hover) and (pointer: fine) {
  [data-design="a"] .rf-nav a:hover {
    color: var(--ph-copper);
  }
}
[data-design="a"] .rf-drawer__phone {
  margin-top: 40px;
}
[data-design="a"] .rf-drawer__tel {
  font-family: var(--font-display);
  font-size: clamp(20px, 3vw, 32px);
  color: var(--ph-copper);
  text-decoration: none;
  letter-spacing: 0.04em;
}

/* ===== ELEMENT 3 / HERO — Ambient animated hero ===== */
[data-design="a"] .rf-hero {
  position: relative;
  isolation: isolate;
  min-height: 75vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--ph-graphite);
  padding: clamp(64px, 10vw, 140px) clamp(20px, 4vw, 48px) clamp(80px, 12vw, 160px);
}
/* Backdrop: ONE animated layer — sinewave + pipe silhouette */
[data-design="a"] .rf-hero__backdrop {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
[data-design="a"] .rf-hero__wave {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.45;
}
[data-design="a"] .rf-hero__wave-path {
  fill: none;
  stroke: var(--ph-phosphor);
  stroke-width: 1.2;
  stroke-linecap: round;
  filter: drop-shadow(0 0 6px color-mix(in oklab, var(--ph-phosphor) 50%, transparent));
  animation: a-hum var(--dur-hum, 18s) var(--ease-current) infinite;
}
@keyframes a-hum {
  0%   { transform: translateX(-3%) translateY(0);    opacity: 0.35; }
  25%  { transform: translateX(0)    translateY(-8px); opacity: 0.65; }
  50%  { transform: translateX(3%)  translateY(0);    opacity: 0.8; }
  75%  { transform: translateX(0)    translateY(8px);  opacity: 0.55; }
  100% { transform: translateX(-3%) translateY(0);    opacity: 0.35; }
}
/* Pipe silhouette — right side, decorative -->*/
[data-design="a"] .rf-hero__pipes {
  position: absolute;
  right: clamp(20px, 6vw, 80px);
  top: 50%;
  transform: translateY(-50%);
  width: clamp(140px, 25vw, 380px);
  height: auto;
  opacity: 0.18;
  animation: a-pipe-breathe 12s var(--ease-current) infinite;
}
@keyframes a-pipe-breathe {
  0%,100% { opacity: 0.14; }
  50%      { opacity: 0.24; }
}
[data-design="a"] .ph-pipe {
  fill: none;
  stroke: var(--ph-copper);
  stroke-width: 2;
}
[data-design="a"] .ph-pipe--main    { stroke-width: 3; }
[data-design="a"] .ph-pipe--branch  { stroke-width: 2; }
[data-design="a"] .ph-pipe--secondary { stroke-width: 1.5; }
[data-design="a"] .ph-gauge__ring {
  fill: none;
  stroke: var(--ph-copper);
  stroke-width: 1.5;
}
[data-design="a"] .ph-gauge__needle {
  stroke: var(--ph-copper);
  stroke-width: 1.5;
  stroke-linecap: round;
  animation: a-gauge-sweep 8s var(--ease-current) infinite;
}
@keyframes a-gauge-sweep {
  0%   { transform: rotate(-30deg); }
  50%  { transform: rotate(40deg);  }
  100% { transform: rotate(-30deg); }
}
[data-design="a"] .ph-gauge__pivot {
  fill: var(--ph-copper);
}
[data-design="a"] .ph-drop {
  fill: var(--ph-copper);
  opacity: 0;
}
[data-design="a"] .ph-drop--1 {
  animation: a-drip 6s var(--ease-current) 0s infinite;
}
[data-design="a"] .ph-drop--2 {
  animation: a-drip 6s var(--ease-current) 2s infinite;
}
@keyframes a-drip {
  0%   { transform: translateY(0);   opacity: 0; }
  10%  { opacity: 0.8; }
  70%  { transform: translateY(18px); opacity: 0.6; }
  100% { transform: translateY(28px); opacity: 0; }
}
/* Copper-glow halo behind content */
[data-design="a"] .rf-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: radial-gradient(ellipse 60% 55% at 35% 50%, color-mix(in oklab, var(--ph-copper) 14%, transparent) 0%, transparent 70%);
  animation: a-halo-breathe 6s ease-in-out infinite;
  pointer-events: none;
}
@keyframes a-halo-breathe {
  0%,100% { opacity: 0.6; }
  50%      { opacity: 1.0; }
}
/* Hero content sits ABOVE backdrop z-index (HERO TEXT Z-INDEX HARD RULE) */
[data-design="a"] .rf-hero__content {
  position: relative;
  z-index: 2;
  max-width: min(620px, 100%);
}
[data-design="a"] .rf-kicker {
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ph-copper);
  margin: 0 0 24px 0;
  opacity: 1;
}
[data-design="a"] .rf-headline {
  font-family: var(--font-display);
  font-size: clamp(28px, 5vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--ph-ink);
  margin: 0 0 22px 0;
  opacity: 1;
}
[data-design="a"] .rf-lede {
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.55;
  color: var(--ph-muted);
  max-width: 52ch;
  margin: 0 0 36px 0;
  opacity: 1;
}

/* ===== ELEMENT 2: CTA (phone) ===== */
[data-design="a"] .rf-cta {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 16px 24px;
  background: var(--ph-copper);
  color: var(--ph-graphite);
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid color-mix(in oklab, var(--ph-copper) 80%, #000);
  border-radius: var(--rad-1);
  box-shadow: var(--elev-bright);
  overflow: hidden;
  min-height: 44px;
  min-width: 44px;
  transition: transform var(--dur-flick) var(--ease-needle),
              background var(--dur-flick) var(--ease-needle);
  will-change: transform;
  cursor: pointer;
}
[data-design="a"] .rf-cta__plate {
  font-size: 11px;
  opacity: 0.7;
}
[data-design="a"] .rf-cta__label {
  letter-spacing: 0.04em;
  font-weight: 500;
}
[data-design="a"] .rf-cta__arrow {
  display: inline-flex;
  transition: transform var(--dur-flick) var(--ease-needle);
}
@media (hover: hover) and (pointer: fine) {
  [data-design="a"] .rf-cta:hover {
    background: color-mix(in oklab, var(--ph-copper) 90%, #fff);
  }
  [data-design="a"] .rf-cta:hover .rf-cta__arrow {
    transform: rotate(8deg) translateX(2px);
  }
}
[data-design="a"] .rf-cta:focus-visible {
  outline: 2px solid var(--ph-phosphor);
  outline-offset: 3px;
}
[data-design="a"] .rf-cta:active {
  transform: translateY(1px) scale(0.997);
  box-shadow: var(--elev-press);
}
[data-design="a"] .rf-cta__pulse {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--ph-phosphor) 40%, var(--ph-phosphor) 60%, transparent 100%);
  filter: drop-shadow(0 0 6px var(--ph-phosphor));
  transform: translateX(-100%);
  animation: a-cta-pulse var(--dur-breath, 4.6s) var(--ease-current) infinite;
}
@keyframes a-cta-pulse {
  0%   { transform: translateX(-100%); opacity: 0; }
  20%  { opacity: 1; }
  80%  { opacity: 1; }
  100% { transform: translateX(100%);  opacity: 0; }
}
/* CTA variants */
[data-design="a"] .rf-cta--paper {
  background: var(--ph-graphite);
  color: var(--ph-paper);
  border-color: var(--ph-graphite);
}
@media (hover: hover) and (pointer: fine) {
  [data-design="a"] .rf-cta--paper:hover {
    background: color-mix(in oklab, var(--ph-graphite) 86%, var(--ph-copper));
  }
}
[data-design="a"] .rf-cta--ghost {
  background: transparent;
  color: var(--ph-copper);
  border: 1px solid var(--ph-copper);
}
@media (hover: hover) and (pointer: fine) {
  [data-design="a"] .rf-cta--ghost:hover {
    background: color-mix(in oklab, var(--ph-copper) 12%, transparent);
  }
}

/* ===== ELEMENT 6: POINTER (hydraulic-warm, between hero and funnel) ===== */
[data-design="a"] .rf-pointer {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 28px clamp(20px, 4vw, 48px);
  max-width: 1440px;
  margin: 0 auto;
  background: var(--ph-graphite);
  font-variant-numeric: tabular-nums;
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ph-muted);
  text-transform: uppercase;
  min-height: 60px;
  opacity: 1;
}
[data-design="a"] .phasor-pointer__pipe-run {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
[data-design="a"] .phasor-pointer__drop {
  display: inline-block;
  width: 6px;
  height: 10px;
  background: var(--ph-copper);
  border-radius: 0 0 6px 6px;
  opacity: 0.7;
}
[data-design="a"] .phasor-pointer__drop--1 {
  animation: a-ptr-drip 3s var(--ease-current) 0s infinite;
}
[data-design="a"] .phasor-pointer__drop--2 {
  animation: a-ptr-drip 3s var(--ease-current) 1s infinite;
}
[data-design="a"] .phasor-pointer__drop--3 {
  animation: a-ptr-drip 3s var(--ease-current) 2s infinite;
}
@keyframes a-ptr-drip {
  0%   { transform: translateY(0);    opacity: 0.3; }
  40%  { transform: translateY(6px);  opacity: 0.8; }
  100% { transform: translateY(14px); opacity: 0; }
}
[data-design="a"] .phasor-pointer__flow-label {
  color: var(--ph-copper);
  white-space: nowrap;
}
[data-design="a"] .phasor-pointer__bar {
  position: relative;
  flex: 1;
  height: 1px;
  background: var(--ph-line);
  overflow: hidden;
}
[data-design="a"] .phasor-pointer__bar-fill {
  position: absolute;
  inset: 0;
  transform: scaleX(0.2);
  transform-origin: left;
  background: var(--ph-copper);
  opacity: 0.7;
  transition: transform 480ms var(--ease-needle);
  animation: a-ptr-flow 4s var(--ease-current) infinite;
}
@keyframes a-ptr-flow {
  0%   { transform: scaleX(0.1) translateX(0);   opacity: 0.4; }
  50%  { transform: scaleX(0.6) translateX(0);   opacity: 0.9; }
  100% { transform: scaleX(1.0) translateX(10%); opacity: 0.3; }
}
[data-design="a"] .phasor-pointer__chev {
  font-size: 20px;
  color: var(--ph-copper);
  opacity: 0.7;
  animation: a-ptr-chev 4s ease-in-out infinite;
}
@keyframes a-ptr-chev {
  0%,100% { transform: translateX(0);   opacity: 0.5; }
  50%      { transform: translateX(4px); opacity: 1.0; }
}

/* ===== ELEMENT 5: FUNNEL ===== */
[data-design="a"] .rf-interactive {
  background: var(--ph-paper);
  color: var(--ph-ink-dark);
  padding: clamp(56px, 9vw, 128px) clamp(20px, 4vw, 48px);
}
[data-design="a"] .rf-qual {
  max-width: 720px;
  margin: 0 auto;
  background: var(--ph-paper);
  border: 1px solid var(--ph-line-paper);
  padding: clamp(28px, 4vw, 48px);
}
[data-design="a"] .rf-qual__plate {
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ph-copper);
  margin: 0 0 12px 0;
  opacity: 1;
}
[data-design="a"] .rf-qual__title {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.1;
  letter-spacing: -0.015em;
  color: var(--ph-ink-dark);
  margin: 0 0 24px 0;
  opacity: 1;
}
[data-design="a"] .rf-qual__pips {
  display: flex;
  gap: 6px;
  list-style: none;
  padding: 0;
  margin: 0 0 32px 0;
}
[data-design="a"] .rf-qual__pips li {
  height: 2px;
  flex: 1;
  background: var(--ph-line-paper);
  position: relative;
  overflow: hidden;
}
[data-design="a"] .rf-qual__pips li.is-active {
  background: var(--ph-copper);
}
[data-design="a"] .rf-qual__pips li.is-active::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, var(--ph-phosphor), transparent);
  transform: translateX(-100%);
  animation: a-pip-trace 1.2s var(--ease-current);
}
@keyframes a-pip-trace {
  to { transform: translateX(100%); }
}
[data-design="a"] .rf-qual__step {
  border: 0;
  padding: 0;
  margin: 0;
  display: none;
  opacity: 1;
  transform: translateY(0);
  transition: opacity 280ms var(--ease-needle), transform 280ms var(--ease-needle);
}
[data-design="a"] .rf-qual__step.is-active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}
[data-design="a"] .rf-qual__legend {
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ph-muted);
  margin-bottom: 18px;
  display: block;
  opacity: 1;
}
[data-design="a"] .rf-qual__opts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
[data-design="a"] .rf-qual__opts label {
  position: relative;
  cursor: pointer;
  border: 1px solid var(--ph-line-paper);
  padding: 16px 18px;
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.04em;
  background: color-mix(in oklab, var(--ph-paper) 96%, #000);
  transition: border-color var(--dur-flick) var(--ease-needle),
              background var(--dur-flick) var(--ease-needle);
  min-height: 44px;
  display: flex;
  align-items: center;
  color: var(--ph-ink-dark);
  opacity: 1;
}
[data-design="a"] .rf-qual__opts input {
  position: absolute;
  opacity: 0;
  inset: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
}
@media (hover: hover) and (pointer: fine) {
  [data-design="a"] .rf-qual__opts label:hover {
    border-color: var(--ph-copper);
  }
}
[data-design="a"] .rf-qual__opts label:has(input:checked) {
  border-color: var(--ph-copper);
  background: color-mix(in oklab, var(--ph-copper) 14%, var(--ph-paper));
  box-shadow: inset 3px 0 0 0 var(--ph-copper);
}
[data-design="a"] .rf-qual__opts label:focus-within {
  outline: 2px solid var(--ph-copper);
  outline-offset: 2px;
}
/* Emergency CTA reveal — display:none toggle (never opacity:0) */
[data-design="a"] .rf-qual__emergency-cta {
  margin-top: 16px;
  padding: 14px 16px;
  border: 1px solid var(--ph-copper);
  background: color-mix(in oklab, var(--ph-copper) 8%, var(--ph-paper));
}
[data-design="a"] .rf-qual__emergency-cta[hidden] {
  display: none;
}
[data-design="a"] .rf-qual__emergency-msg {
  font-family: var(--font-display);
  font-size: 13px;
  color: var(--ph-ink-dark);
  margin: 0;
  opacity: 1;
}
[data-design="a"] .rf-qual__emergency-msg a {
  color: var(--ph-copper);
  font-weight: 600;
}
[data-design="a"] .rf-qual__summary {
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ph-muted);
  border: 1px solid var(--ph-line-paper);
  padding: 14px 16px;
  margin-bottom: 22px;
  min-height: 44px;
}
[data-design="a"] .rf-qual__fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
[data-design="a"] .rf-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
[data-design="a"] .rf-field--full {
  grid-column: 1 / -1;
  margin-bottom: 20px;
}
[data-design="a"] .rf-field__lbl {
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ph-muted);
  opacity: 1;
}
[data-design="a"] .rf-field input,
[data-design="a"] .rf-field textarea {
  background: transparent;
  color: var(--ph-ink-dark);
  border: 0;
  border-bottom: 1px solid var(--ph-line-paper);
  padding: 10px 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  transition: border-color 240ms var(--ease-needle);
  border-radius: 0;
  resize: vertical;
  width: 100%;
}
[data-design="a"] .rf-field input:focus,
[data-design="a"] .rf-field textarea:focus {
  outline: none;
  border-bottom-color: var(--ph-copper);
}
[data-design="a"] .rf-qual__fineprint {
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--ph-muted);
  margin-top: 14px;
  opacity: 1;
}

/* ===== ELEMENT 4: AMBIENT B — Services + topology ===== */
[data-design="a"] .rf-ambient-b {
  display: grid;
  gap: clamp(32px, 6vw, 96px);
  grid-template-columns: 1.2fr 1fr;
  padding: clamp(56px, 9vw, 128px) clamp(20px, 4vw, 48px);
  max-width: 1440px;
  margin: 0 auto;
  border-top: 1px solid var(--ph-line);
}
[data-design="a"] .rf-h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 56px);
  line-height: 1.1;
  letter-spacing: -0.015em;
  color: var(--ph-ink);
  margin: 0 0 36px 0;
}
[data-design="a"] .rf-services {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--ph-line);
}
[data-design="a"] .rf-services li {
  display: grid;
  grid-template-columns: 48px 1fr auto;
  gap: 18px;
  align-items: baseline;
  padding: 18px 4px;
  border-bottom: 1px solid var(--ph-line);
  font-family: var(--font-body);
  color: var(--ph-ink);
  transition: background var(--dur-flick) var(--ease-needle);
}
@media (hover: hover) and (pointer: fine) {
  [data-design="a"] .rf-services li:hover {
    background: color-mix(in oklab, var(--ph-graphite-2) 70%, transparent);
  }
}
[data-design="a"] .rf-services .num {
  font-family: var(--font-display);
  color: var(--ph-copper);
  font-size: 12px;
  letter-spacing: 0.06em;
}
[data-design="a"] .rf-services .name {
  font-size: 17px;
}
[data-design="a"] .rf-services .spec {
  font-family: var(--font-display);
  color: var(--ph-muted);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
[data-design="a"] .rf-services__phone {
  margin-top: 32px;
}
[data-design="a"] .rf-ambient-b__topo {
  align-self: center;
  justify-self: stretch;
  background: var(--ph-graphite-2);
  box-shadow: var(--elev-ring),
              inset 0 1px 0 0 color-mix(in oklab, #fff 8%, transparent);
  padding: 24px;
}
[data-design="a"] .rf-ambient-b__topo svg {
  width: 100%;
  height: auto;
  display: block;
}
[data-design="a"] .rf-topo__paths path {
  fill: none;
  stroke: var(--ph-line);
  stroke-width: 1.25;
}
[data-design="a"] .rf-topo__paths path.is-live {
  stroke: var(--ph-phosphor);
  filter: drop-shadow(0 0 4px color-mix(in oklab, var(--ph-phosphor) 60%, transparent));
  transition: stroke 200ms var(--ease-needle);
}
[data-design="a"] .rf-topo__nodes circle {
  fill: var(--ph-graphite-2);
  stroke: var(--ph-line);
  stroke-width: 1.5;
  transition: fill 200ms var(--ease-needle), stroke 200ms var(--ease-needle);
}
[data-design="a"] .rf-topo__nodes circle.is-live {
  fill: var(--ph-phosphor);
  stroke: var(--ph-phosphor);
  filter: drop-shadow(0 0 8px var(--ph-phosphor));
}
[data-design="a"] .rf-topo__labels text {
  font-family: var(--font-display);
  font-size: 9px;
  fill: var(--ph-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ===== SERVICE AREA SECTION ===== */
[data-design="a"] .rf-area {
  background: var(--ph-graphite-2);
  border-top: 1px solid var(--ph-line);
  padding: clamp(56px, 8vw, 112px) clamp(20px, 4vw, 48px);
}
[data-design="a"] .rf-area__inner {
  max-width: 1440px;
  margin: 0 auto;
}
[data-design="a"] .rf-area__desc {
  font-size: 18px;
  line-height: 1.6;
  color: var(--ph-muted);
  max-width: 62ch;
  margin: 0 0 28px 0;
}
[data-design="a"] .rf-area__list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  list-style: none;
  padding: 0;
  margin: 0 0 36px 0;
}
[data-design="a"] .rf-area__list li {
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ph-ink);
  border: 1px solid var(--ph-line);
  padding: 8px 16px;
}

/* ===== ABOUT SECTION ===== */
[data-design="a"] .rf-about {
  background: var(--ph-graphite);
  border-top: 1px solid var(--ph-line);
  padding: clamp(56px, 8vw, 112px) clamp(20px, 4vw, 48px);
}
[data-design="a"] .rf-about__inner {
  max-width: 1440px;
  margin: 0 auto;
  max-width: 860px;
}
[data-design="a"] .rf-about__body {
  font-size: 17px;
  line-height: 1.65;
  color: var(--ph-muted);
  max-width: 68ch;
  margin: 0 0 20px 0;
}
[data-design="a"] .rf-about__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}
[data-design="a"] .rf-chip {
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ph-ink);
  border: 1px solid var(--ph-line);
  padding: 6px 14px;
  border-radius: var(--rad-0);
}

/* ===== FOOTER ===== */
[data-design="a"] .rf-footer {
  background: var(--ph-graphite-2);
  border-top: 1px solid var(--ph-line);
  padding: 40px clamp(20px, 4vw, 48px) 32px;
  position: relative;
}
[data-design="a"] .rf-footer__inner {
  max-width: 1440px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
  align-items: center;
}
[data-design="a"] .rf-footer__brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ph-ink);
}
[data-design="a"] .rf-footer__contact {
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-align: center;
}
[data-design="a"] .rf-footer__phone {
  font-family: var(--font-display);
  font-size: 16px;
  color: var(--ph-copper);
  text-decoration: none;
  letter-spacing: 0.04em;
}
[data-design="a"] .rf-footer__area {
  font-family: var(--font-display);
  font-size: 11px;
  color: var(--ph-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
[data-design="a"] .rf-footer__meta {
  text-align: right;
}
[data-design="a"] .rf-footer__copy {
  font-family: var(--font-display);
  font-size: 11px;
  color: var(--ph-muted);
  letter-spacing: 0.04em;
}
[data-design="a"] .rf-footer__live {
  display: flex;
  align-items: center;
  gap: 6px;
  position: absolute;
  bottom: 14px;
  left: clamp(20px, 4vw, 48px);
  font-family: var(--font-display);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--ph-phosphor);
}
[data-design="a"] .rf-footer__live-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ph-phosphor);
  animation: a-live-pulse 2.4s var(--ease-current) infinite;
}
@keyframes a-live-pulse {
  0%,100% { opacity: 0.4; transform: scale(0.85); }
  50%      { opacity: 1;   transform: scale(1.1); }
}

/* ===== SCROLL-DRIVEN PARALLAX (TRIAD-2 — premium scroll motion) ===== */
/* Uses @scroll-timeline + animation-timeline where supported; offset-path for eye-journey */
@supports (animation-timeline: scroll()) {
  [data-design="a"] .rf-hero__backdrop {
    animation: a-hero-parallax linear both;
    animation-timeline: scroll(root block);
    animation-range: 0% 40%;
  }
  @keyframes a-hero-parallax {
    from { transform: translateY(0); }
    to   { transform: translateY(30px); }
  }
  [data-design="a"] .rf-hero__pipes {
    animation: a-pipes-parallax linear both, a-pipe-breathe 12s var(--ease-current) infinite;
    animation-timeline: scroll(root block), auto;
    animation-range: 0% 50%, auto;
  }
  @keyframes a-pipes-parallax {
    from { transform: translateY(-50%) translateX(0); }
    to   { transform: translateY(-50%) translateX(18px); }
  }
}

/* ===== MOBILE LAYOUT ===== */
/* Scope EVERY mobile rule to .dq-design — NEVER bare [data-design] that leaks to body */
[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;
}

@media (max-width: 880px) {
  [data-design="a"] .rf-ambient-b {
    grid-template-columns: 1fr;
  }
  [data-design="a"] .rf-ambient-b__topo {
    display: none;
  }
  [data-design="a"] .rf-footer__inner {
    grid-template-columns: 1fr;
    text-align: center;
  }
  [data-design="a"] .rf-footer__meta { text-align: center; }
  [data-design="a"] .rf-footer__contact { text-align: center; }
}
@media (max-width: 640px) {
  [data-design="a"] .rf-header__bar { padding: 14px 18px; }
  [data-design="a"] .rf-qual__opts { grid-template-columns: 1fr; }
  [data-design="a"] .rf-qual__fields { grid-template-columns: 1fr; }
  [data-design="a"] .rf-hero__pipes { display: none; }
  [data-design="a"] .rf-services li { grid-template-columns: 36px 1fr; }
  [data-design="a"] .rf-services .spec { display: none; }
}

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {
  [data-design="a"] .rf-trace__wave { animation: none; }
  [data-design="a"] .rf-drawer { transition: none; }
  [data-design="a"] .rf-hero__wave-path { animation: none; opacity: 0.5; }
  [data-design="a"] .rf-hero__pipes { animation: none; opacity: 0.18; }
  [data-design="a"] .ph-gauge__needle { animation: none; }
  [data-design="a"] .ph-drop { animation: none; }
  [data-design="a"] .rf-hero::before { animation: none; opacity: 0.7; }
  [data-design="a"] .rf-cta__pulse { animation: none; opacity: 0.4; transform: none; }
  [data-design="a"] .rf-cta__arrow { transition: none; }
  [data-design="a"] .phasor-pointer__drop--1,
  [data-design="a"] .phasor-pointer__drop--2,
  [data-design="a"] .phasor-pointer__drop--3 { animation: none; opacity: 0.7; }
  [data-design="a"] .phasor-pointer__bar-fill { animation: none; transform: scaleX(0.5); }
  [data-design="a"] .phasor-pointer__chev { animation: none; opacity: 0.7; }
  [data-design="a"] .rf-qual__step { transition: none; transform: none; }
  [data-design="a"] .rf-qual__pips li.is-active::after { animation: none; }
  [data-design="a"] .rf-topo__paths path,
  [data-design="a"] .rf-topo__nodes circle { transition: none; }
  [data-design="a"] .rf-footer__live-dot { animation: none; opacity: 0.8; }
}

/* 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; }