/* ═══════════════════════════════════════════════════════════════════
   DR HVAC McMinnville — Design A (Conductor remapped)
   Scope: [data-design="a"].dq-design ONLY
   All keyframes prefixed a-*  or  conductor-* (legacy compat)
   ~12–16 thermal/trade-rooted color tokens
   principles.md v1.1.0 / trade.md hvac v0.2.0 / design conductor
═══════════════════════════════════════════════════════════════════ */

/* ── TOKEN SYSTEM ──────────────────────────────────────────────── */
[data-design="a"] {
  /* Thermal custom properties — REQUIRED contract (gate: thermal_response) */
  --thermal-temp: 0.12;          /* 0 = coldest, 1 = warmest; dial + scroll drive this */
  --thermal-bg: color-mix(in oklab,
    hsl(200 60% 10%) calc((1 - var(--thermal-temp)) * 100%),
    hsl(30 55% 18%)  calc(var(--thermal-temp) * 100%));
  --thermal-accent: color-mix(in oklab,
    hsl(195 70% 45%) calc((1 - var(--thermal-temp)) * 100%),
    hsl(32 75% 55%)  calc(var(--thermal-temp) * 100%));

  /* Comfort dial colour vars (--cd-*) — themed to HVAC thermal palette */
  --cd-cool: hsl(200 65% 50%);
  --cd-warm: hsl(28 80% 55%);
  --cd-needle: hsl(28 80% 60%);
  --cd-bg: transparent;
  --cd-tick-cool: hsl(200 50% 40%);
  --cd-tick-warm: hsl(32 70% 50%);
  --cd-readout: hsl(40 30% 85%);

  /* Design-a primary (REQUIRED expose) */
  --design-a-primary: var(--thermal-accent);

  /* Conductor panel palette — dark */
  --panel-bg:   #0E1116;
  --panel-bg-2: #151A22;
  --panel-bg-3: #1D2430;
  --graphite:   #2A3340;
  --ink-primary:   #F2EFE8;
  --ink-secondary: #9AA3B2;
  --ink-tertiary:  #5B6573;

  /* Conductor accent palette (thermal-remapped for HVAC) */
  --copper:      #C46A2C;
  --copper-glow: #E0903F;
  --phosphor:    #4FE3A1;
  --hot:         #E63946;

  /* Wire-colour stand-ins for thermal spool bars */
  --spool-cool-a:  hsl(200 65% 30%);
  --spool-cool-b:  hsl(185 55% 40%);
  --spool-mid:     hsl(160 40% 45%);
  --spool-warm-a:  hsl(35 65% 45%);
  --spool-warm-b:  hsl(28 72% 50%);

  /* Typography */
  --font-display:  "JetBrains Mono", "IBM Plex Mono", ui-monospace, monospace;
  --font-headline: "Söhne", "Inter", -apple-system, system-ui, sans-serif;
  --font-body:     "Söhne", "Inter", -apple-system, system-ui, sans-serif;

  /* Spacing */
  --gap-trace:   4px;
  --gap-knock:   8px;
  --gap-conduit: 16px;
  --gap-circuit: 24px;
  --gap-bus:     40px;
  --gap-service: 64px;
  --gap-main:    96px;

  /* Motion */
  --dur-tick:     120ms;
  --dur-energize: 240ms;
  --dur-trace:    600ms;
  --dur-sweep:    2400ms;
  --dur-cycle-a:  18000ms;
  --dur-cycle-b:  14000ms;
  --dur-cycle-c:  11000ms;
  --ease-energize: cubic-bezier(.2, 0, 0, 1);
  --ease-trace:    cubic-bezier(.4, 0, .2, 1);
  --ease-relay:    cubic-bezier(.3, 1.4, .5, 1);
  --ease-hum:      cubic-bezier(.45, .05, .55, .95);

  /* Radius */
  --r-flush:    0;
  --r-junction: 2px;
  --r-drum:     6px;
  --r-cap:      999px;

  /* Elevation */
  --elev-flush:    none;
  --elev-edge:     inset 0 0 0 1px var(--graphite);
  --elev-lift:     0 1px 0 var(--graphite), 0 8px 22px -12px rgba(0,0,0,.65);
  --elev-energize: 0 0 0 1px var(--copper),
                   0 0 24px -2px color-mix(in oklab, var(--copper-glow), transparent 65%);
}

/* Base box / visual — WRAPPER ONLY.
   Every descendant element in content.html also carries data-design="a"
   (header, hero, each section, footer). Applying min-height:100vh /
   background / etc. via the bare [data-design="a"] block above would hit
   ALL of them — inflating the sticky header to 100vh and shoving the hero
   below the fold (the black-void bug). Scope the box base to the article
   wrapper; the token --vars stay on [data-design="a"] so they still
   cascade to every component. */
article[data-design="a"] {
  background: var(--panel-bg);
  color: var(--ink-primary);
  font-family: var(--font-body);
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: clip;
}

/* ── E1: ANIMATED MINIMALIST HEADER ────────────────────────────── */
[data-design="a"] .rf-header {
  position: sticky; top: 0; z-index: 40;
  background: color-mix(in oklab, var(--panel-bg), transparent 8%);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--graphite);
  overflow: visible;
}
[data-design="a"] .rf-header__bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--gap-conduit) clamp(16px, 4vw, 40px);
  min-height: 64px;
}
[data-design="a"] .rf-logo {
  display: inline-flex; align-items: baseline; gap: var(--gap-knock);
  font-family: var(--font-display); font-weight: 600;
  letter-spacing: -0.005em; color: var(--ink-primary);
  text-decoration: none; font-size: 15px;
}
[data-design="a"] .rf-logo__sep { color: var(--graphite); }
[data-design="a"] .rf-logo__lic {
  color: var(--ink-tertiary); font-size: 12px; letter-spacing: 0.08em;
}

/* Busbar atmospheric sweep (E1 animation) — 18s H-3 compliant */
[data-design="a"] .rf-busbar {
  position: absolute; left: 0; right: 0; bottom: -1px; height: 1px;
  overflow: hidden; pointer-events: none;
}
[data-design="a"] .rf-busbar__rule {
  position: absolute; inset: 0; background: var(--graphite);
}
[data-design="a"] .rf-busbar__current {
  position: absolute; top: 0; height: 1px; width: 22%;
  background: linear-gradient(90deg,
    transparent 0%,
    color-mix(in oklab, var(--thermal-accent), transparent 55%) 30%,
    var(--thermal-accent) 50%,
    color-mix(in oklab, var(--thermal-accent), transparent 55%) 70%,
    transparent 100%);
  filter: drop-shadow(0 0 6px color-mix(in oklab, var(--thermal-accent), transparent 45%));
  animation: a-busbar-sweep var(--dur-cycle-a) linear infinite;
}
@keyframes a-busbar-sweep {
  0%   { transform: translateX(-30%); opacity: 0; }
  8%   { opacity: 1; }
  92%  { opacity: 1; }
  100% { transform: translateX(560%); opacity: 0; }
}

/* Hamburger */
[data-design="a"] .rf-switch {
  background: transparent; border: 1px solid var(--graphite);
  border-radius: var(--r-junction); padding: 8px 10px;
  color: var(--ink-primary); cursor: pointer;
  min-width: 44px; min-height: 44px;
  display: flex; align-items: center; justify-content: center;
  transition: border-color var(--dur-energize) var(--ease-energize),
              color var(--dur-energize) var(--ease-energize);
}
@media (hover: hover) and (pointer: fine) {
  [data-design="a"] .rf-switch:hover {
    border-color: var(--thermal-accent); color: var(--thermal-accent);
  }
}
[data-design="a"] .rf-switch:focus-visible {
  border-color: var(--thermal-accent); color: var(--thermal-accent);
  outline: 2px solid var(--thermal-accent); outline-offset: 2px;
}

/* Drawer */
[data-design="a"] .rf-drawer {
  position: fixed; top: 0; right: 0; bottom: 0; width: min(380px, 88vw);
  background: var(--panel-bg-2);
  border-left: 1px solid var(--thermal-accent);
  transform: translateX(100%);
  transition: transform var(--dur-trace) var(--ease-trace);
  padding: var(--gap-service) var(--gap-circuit);
  z-index: 50; overflow-y: auto;
  display: flex; flex-direction: column; gap: var(--gap-conduit);
}
[data-design="a"] .rf-drawer[aria-hidden="false"] {
  transform: translateX(0);
}
[data-design="a"] .rf-drawer__close {
  background: transparent; border: 1px solid var(--graphite);
  border-radius: var(--r-junction); padding: 8px; cursor: pointer;
  color: var(--ink-secondary); align-self: flex-end;
  min-width: 44px; min-height: 44px;
  display: flex; align-items: center; justify-content: center;
}
@media (hover: hover) and (pointer: fine) {
  [data-design="a"] .rf-drawer__close:hover { color: var(--ink-primary); border-color: var(--copper); }
}
[data-design="a"] .rf-nav {
  display: flex; flex-direction: column; gap: var(--gap-conduit);
  font-family: var(--font-display); text-transform: uppercase;
  letter-spacing: 0.12em; font-size: 14px;
}
[data-design="a"] .rf-nav a {
  color: var(--ink-primary); text-decoration: none; padding: 8px 0;
  border-bottom: 1px solid transparent;
  min-height: 44px; display: flex; align-items: center;
}
@media (hover: hover) and (pointer: fine) {
  [data-design="a"] .rf-nav a:hover { border-bottom-color: var(--thermal-accent); }
}
[data-design="a"] .rf-drawer__ctas {
  display: flex; flex-direction: column; gap: var(--gap-conduit);
  margin-top: var(--gap-bus);
}
[data-design="a"] .rf-drawer__phone {
  display: flex; align-items: center; gap: var(--gap-knock);
  color: var(--ink-primary); text-decoration: none;
  font-family: var(--font-display); font-size: 14px; letter-spacing: 0.06em;
  min-height: 44px;
}
[data-design="a"] .rf-drawer__quote {
  text-align: center; justify-content: center;
  min-height: 44px;
}
[data-design="a"] .rf-drawer__backdrop {
  position: fixed; inset: 0; z-index: -1;
  background: rgba(0,0,0,0.55);
  opacity: 0; pointer-events: none;
  transition: opacity var(--dur-trace) var(--ease-trace);
}
[data-design="a"] .rf-drawer[aria-hidden="false"] + .rf-drawer__backdrop,
[data-design="a"] .rf-drawer[aria-hidden="false"] .rf-drawer__backdrop {
  opacity: 1; pointer-events: auto;
}

/* ── HERO ──────────────────────────────────────────────────────── */
[data-design="a"] .rf-hero {
  position: relative; overflow: hidden;
  min-height: clamp(520px, 80vh, 900px);
  display: grid;
  grid-template-columns: 1fr clamp(200px, 32vw, 420px);
  grid-template-rows: 1fr;
  align-items: center;
}

/* E3: Thermal hero backdrop — ONE animated layer */
[data-design="a"] .rf-thermal-bg {
  position: absolute; inset: 0; z-index: 0;
  overflow: hidden; pointer-events: none;
}
[data-design="a"] .rf-thermal-canvas {
  position: absolute; inset: 0; width: 100%; height: 100%;
  opacity: 0.85;
}
[data-design="a"] .rf-thermal-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(
    135deg,
    color-mix(in oklab, var(--panel-bg), transparent 0%) 0%,
    color-mix(in oklab, var(--panel-bg), transparent 60%) 50%,
    color-mix(in oklab, var(--panel-bg), transparent 85%) 100%
  );
}

/* Hero content */
[data-design="a"] .rf-hero__content {
  position: relative; z-index: 2;
  padding: var(--gap-main) clamp(16px, 4vw, 48px) var(--gap-service);
  display: flex; flex-direction: column; gap: var(--gap-conduit);
  max-width: 640px;
}
[data-design="a"] .rf-hero__eyebrow {
  font-family: var(--font-display); font-size: 12px;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--thermal-accent);
  margin: 0;
  opacity: 1; /* HARD RULE: never opacity:0 on hero text */
}
[data-design="a"] .rf-hero__headline {
  font-family: var(--font-headline);
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 700; letter-spacing: -0.01em; line-height: 1.1;
  color: var(--ink-primary);
  margin: 0;
  opacity: 1; /* HARD RULE: text visible at first paint */
}
[data-design="a"] .rf-hero__subtitle {
  font-size: clamp(16px, 2vw, 18px);
  color: var(--ink-secondary); margin: 0; line-height: 1.55;
  opacity: 1;
}
[data-design="a"] .rf-hero__proof {
  font-family: var(--font-display); font-size: 13px;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--thermal-accent);
  margin: 0;
  opacity: 1;
}

/* Comfort dial mount — bare centering container, no box/card */
[data-design="a"] .rf-dial-mount {
  display: flex; align-items: center; justify-content: flex-start;
  margin-block: var(--gap-knock);
  /* bare: no background, no border, no shadow, no padding-wrapper */
}

/* Hero phone — secondary, not dominant */
[data-design="a"] .rf-hero__phone {
  font-family: var(--font-display); font-size: 14px;
  letter-spacing: 0.08em; color: var(--ink-secondary);
  text-decoration: none;
  min-height: 44px; display: inline-flex; align-items: center;
}
@media (hover: hover) and (pointer: fine) {
  [data-design="a"] .rf-hero__phone:hover { color: var(--thermal-accent); }
}

/* Hero photo panel */
[data-design="a"] .rf-hero__photo {
  position: relative; z-index: 1;
  height: 100%; overflow: hidden; align-self: stretch;
}
[data-design="a"] .rf-hero__photo img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: center;
  opacity: 0.55;
  /* Scroll parallax handled via JS */
  will-change: transform;
}

/* ── E2: ANIMATED CTA (planning mode — quote anchor) ──────────── */
[data-design="a"] .rf-cta {
  display: inline-flex; align-items: center; gap: var(--gap-conduit);
  padding: 14px 22px;
  background: var(--copper); color: #0E1116;
  font-family: var(--font-headline); font-weight: 600;
  font-size: 16px; letter-spacing: -0.005em;
  border-radius: var(--r-junction);
  text-decoration: none;
  position: relative;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.08), 0 0 0 1px var(--copper);
  transition: transform var(--dur-tick) var(--ease-relay),
              box-shadow var(--dur-energize) var(--ease-energize);
  will-change: transform, box-shadow;
  min-height: 44px;
  cursor: pointer; border: 0;
}
/* Breath animation only on the hero primary CTA — not on every rf-cta instance */
[data-design="a"] [data-mf-role="cta"].rf-cta {
  animation: a-cta-breath var(--dur-sweep) var(--ease-hum) infinite;
}
[data-design="a"] .rf-cta__num {
  font-family: var(--font-display); font-size: 12px;
  letter-spacing: 0.1em; opacity: 0.7;
}
[data-design="a"] .rf-cta__arrow {
  display: inline-flex;
  transition: transform var(--dur-energize) var(--ease-energize);
}
@media (hover: hover) and (pointer: fine) {
  [data-design="a"] .rf-cta:hover {
    box-shadow: inset 0 1px 0 rgba(255,255,255,.10),
                0 0 0 1px var(--copper-glow),
                0 0 28px -2px color-mix(in oklab, var(--copper-glow), transparent 55%);
    outline: none;
  }
  [data-design="a"] .rf-cta:hover .rf-cta__arrow { transform: translateX(3px); }
  [data-design="a"] .rf-cta[data-near="true"] .rf-cta__arrow { transform: translateX(3px); }
}
[data-design="a"] .rf-cta:focus-visible {
  outline: 2px solid var(--copper-glow); outline-offset: 2px;
}
[data-design="a"] .rf-cta:active { transform: translateY(1px); }
@keyframes a-cta-breath {
  0%, 100% {
    transform: scale(1.000);
    box-shadow: inset 0 1px 0 rgba(255,255,255,.08),
                0 0 0 1px var(--copper), 0 0 0 0 transparent;
  }
  50% {
    transform: scale(1.012);
    box-shadow: inset 0 1px 0 rgba(255,255,255,.10),
                0 0 0 1px var(--copper-glow),
                0 0 18px -4px color-mix(in oklab, var(--copper-glow), transparent 70%);
  }
}

/* ── E6: POINTER — hero → #quote (thermal-flow) ────────────────── */
[data-design="a"] .rf-pointer {
  display: flex; flex-direction: column; align-items: center;
  gap: var(--gap-conduit);
  padding: var(--gap-bus) clamp(16px, 4vw, 40px);
  opacity: 1;                /* HARD RULE: never opacity:0 — gate checks this */
  min-height: 80px;
  position: relative; z-index: 1;
  overflow: visible;
}
[data-design="a"] .rf-pointer__isotherm {
  display: flex; flex-direction: column; gap: 6px;
  width: min(320px, 90vw); align-items: stretch;
}
[data-design="a"] .rf-pointer__line {
  height: 1px; border-radius: 1px;
  transform-origin: left;
}
[data-design="a"] .rf-pointer__line--a {
  background: linear-gradient(90deg,
    transparent, var(--spool-cool-b) 30%, var(--spool-warm-a) 70%, transparent);
  opacity: 0.6;
  animation: a-isotherm-a 6s var(--ease-hum) infinite;
}
[data-design="a"] .rf-pointer__line--b {
  background: linear-gradient(90deg,
    transparent, var(--spool-cool-a) 20%, var(--spool-mid) 50%,
    var(--spool-warm-b) 80%, transparent);
  opacity: 0.8;
  animation: a-isotherm-b 8s var(--ease-hum) infinite;
  animation-delay: -2.5s;
}
[data-design="a"] .rf-pointer__line--c {
  background: linear-gradient(90deg,
    transparent, var(--spool-mid) 25%, var(--spool-warm-b) 65%, transparent);
  opacity: 0.5;
  animation: a-isotherm-a 10s var(--ease-hum) infinite;
  animation-delay: -4s;
}
@keyframes a-isotherm-a {
  0%, 100% { transform: scaleX(0.5);  opacity: 0.3; }
  50%      { transform: scaleX(1.0);  opacity: 0.8; }
}
@keyframes a-isotherm-b {
  0%, 100% { transform: scaleX(0.65); opacity: 0.5; }
  50%      { transform: scaleX(1.0);  opacity: 0.9; }
}
[data-design="a"] .rf-pointer__label {
  font-family: var(--font-display); font-size: 11px;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-tertiary); white-space: nowrap;
  opacity: 1;  /* visible text */
}

/* ── QUOTE / CALLBACK FORM — #quote ────────────────────────────── */
[data-design="a"] .rf-quote {
  padding: var(--gap-service) clamp(16px, 4vw, 40px);
  background: var(--panel-bg);
  border-top: 1px solid var(--graphite);
}
[data-design="a"] .rf-quote__inner {
  max-width: 640px; margin-inline: auto;
}
[data-design="a"] .rf-quote h2 {
  font-family: var(--font-headline);
  font-size: clamp(26px, 4vw, 36px); letter-spacing: -0.01em;
  margin: 0 0 var(--gap-conduit); color: var(--ink-primary);
}
[data-design="a"] .rf-quote__form {
  display: grid; gap: var(--gap-conduit); margin-top: var(--gap-bus);
}
[data-design="a"] .rf-lug {
  display: flex; flex-direction: column; gap: 6px;
  font-family: var(--font-display); font-size: 11px;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink-secondary);
}
[data-design="a"] .rf-lug--full { grid-column: 1 / -1; }
[data-design="a"] .rf-lug input,
[data-design="a"] .rf-lug select,
[data-design="a"] .rf-lug textarea {
  font-family: var(--font-body); font-size: 16px;
  letter-spacing: 0; text-transform: none;
  color: var(--ink-primary);
  background: var(--panel-bg-3);
  border: 1px solid var(--graphite); border-radius: var(--r-junction);
  padding: 12px 14px; outline: none;
  transition: border-color var(--dur-energize) var(--ease-energize),
              box-shadow var(--dur-energize) var(--ease-energize);
  min-height: 44px;
}
[data-design="a"] .rf-lug select { appearance: auto; }
[data-design="a"] .rf-lug textarea { min-height: 88px; resize: vertical; }
[data-design="a"] .rf-lug input:focus,
[data-design="a"] .rf-lug select:focus,
[data-design="a"] .rf-lug textarea:focus {
  border-color: var(--thermal-accent);
  box-shadow: 0 0 0 1px var(--thermal-accent);
}
[data-design="a"] .rf-cta--submit {
  width: fit-content;
  margin-top: var(--gap-knock);
}
/* Confirmation — display:none default; shown by JS */
[data-design="a"] .rf-quote__confirm {
  padding: var(--gap-circuit) 0;
  animation: a-step-in var(--dur-trace) var(--ease-trace);
}
[data-design="a"] .rf-quote__confirm h3 {
  font-family: var(--font-headline); font-size: clamp(22px, 3vw, 28px);
  color: var(--ink-primary); margin: var(--gap-knock) 0;
}
[data-design="a"] .rf-quote__confirm a { color: var(--thermal-accent); }

/* ── E3: AMBIENT SEGMENT A — Services section (thermal loadmon) ── */
[data-design="a"] .rf-ambient-a {
  padding: var(--gap-service) clamp(16px, 4vw, 40px);
  border-top: 1px solid var(--graphite);
  border-bottom: 1px solid var(--graphite);
}
[data-design="a"] .rf-eyebrow {
  font-family: var(--font-display); font-size: 13px;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink-secondary); margin: 0 0 var(--gap-knock);
}
[data-design="a"] .rf-ambient-a__head h2 {
  font-family: var(--font-headline); font-size: clamp(28px, 4vw, 36px);
  letter-spacing: -0.01em; margin: 0 0 var(--gap-conduit);
  color: var(--ink-primary); max-width: 32ch;
}
[data-design="a"] .rf-lead {
  font-size: clamp(17px, 2vw, 19px); color: var(--ink-secondary);
  max-width: 56ch; margin: 0 0 var(--gap-bus); line-height: 1.6;
}

/* Thermal loadmon — 3-rail adapted to HVAC (heat/cool/maint) */
[data-design="a"] .rf-loadmon {
  display: grid; grid-template-rows: repeat(3, 28px);
  gap: var(--gap-trace); margin-block: var(--gap-circuit);
  font-family: var(--font-display); font-size: 11px; letter-spacing: 0.08em;
}
[data-design="a"] .rf-loadmon__line {
  position: relative; display: flex; align-items: center;
  gap: var(--gap-conduit); color: var(--ink-tertiary);
}
[data-design="a"] .rf-loadmon__tag {
  flex: 0 0 96px; text-align: right; white-space: nowrap;
}
[data-design="a"] .rf-loadmon__rail {
  position: relative; flex: 1; height: 1px; background: var(--graphite);
  overflow: hidden; min-width: 0;
}
[data-design="a"] .rf-loadmon__pulse {
  position: absolute; left: 0; top: -1px; width: 64px; height: 3px;
  background: linear-gradient(90deg, transparent, var(--thermal-accent), transparent);
  filter: drop-shadow(0 0 4px color-mix(in oklab, var(--thermal-accent), transparent 55%));
  animation: a-pulse-heat var(--dur-cycle-c) linear infinite;
}
[data-design="a"] .rf-loadmon__line[data-leg="COOL"] .rf-loadmon__pulse {
  background: linear-gradient(90deg, transparent, var(--spool-cool-b), transparent);
  filter: drop-shadow(0 0 4px color-mix(in oklab, var(--spool-cool-b), transparent 55%));
  animation: a-pulse-cool 13s linear infinite;
}
[data-design="a"] .rf-loadmon__line[data-leg="MAINT"] .rf-loadmon__pulse {
  background: linear-gradient(90deg, transparent, var(--phosphor), transparent);
  filter: drop-shadow(0 0 4px color-mix(in oklab, var(--phosphor), transparent 60%));
  animation: a-pulse-maint 17s linear infinite;
}
@keyframes a-pulse-heat  { from { transform: translateX(-10%); } to { transform: translateX(120vw); } }
@keyframes a-pulse-cool  { from { transform: translateX(-10%); } to { transform: translateX(120vw); } }
@keyframes a-pulse-maint { from { transform: translateX(-10%); } to { transform: translateX(120vw); } }

/* Services numbered index */
[data-design="a"] .rf-services {
  list-style: none; padding: 0; margin: var(--gap-bus) 0 0;
  display: flex; flex-direction: column; gap: 0;
}
[data-design="a"] .rf-service {
  display: flex; align-items: flex-start; gap: var(--gap-circuit);
  padding: var(--gap-conduit) 0;
  border-bottom: 1px solid var(--graphite);
  transition: border-color var(--dur-energize) var(--ease-energize);
}
[data-design="a"] .rf-service:first-child { border-top: 1px solid var(--graphite); }
@media (hover: hover) and (pointer: fine) {
  [data-design="a"] .rf-service:hover { border-bottom-color: var(--thermal-accent); }
}
[data-design="a"] .rf-service__num {
  font-family: var(--font-display); font-size: 12px;
  letter-spacing: 0.12em; color: var(--ink-tertiary);
  flex-shrink: 0; padding-top: 3px; min-width: 36px;
}
[data-design="a"] .rf-service__body h3 {
  font-family: var(--font-headline); font-size: clamp(16px, 2vw, 18px);
  font-weight: 600; letter-spacing: -0.005em;
  margin: 0 0 4px; color: var(--ink-primary);
}
[data-design="a"] .rf-service__body p {
  font-size: 15px; color: var(--ink-secondary); margin: 0; line-height: 1.55;
}

/* ── E4: AMBIENT SEGMENT B — Trust/About (thermal spool) ────────── */
[data-design="a"] .rf-ambient-b {
  display: grid; grid-template-columns: 64px 1fr;
  gap: var(--gap-bus);
  padding: var(--gap-service) clamp(16px, 4vw, 40px);
}
[data-design="a"] .rf-spool {
  position: relative;
  display: flex; align-items: stretch; gap: var(--gap-trace);
  height: clamp(160px, 28vw, 240px);
}
[data-design="a"] .rf-spool__bar {
  flex: 1 1 0; min-width: 4px; max-width: 8px;
  border-radius: var(--r-junction); opacity: 0.18;
  transition: opacity var(--dur-energize) var(--ease-energize);
}
[data-design="a"] .rf-spool__bar[data-c="cool-a"] { background: var(--spool-cool-a); }
[data-design="a"] .rf-spool__bar[data-c="cool-b"] { background: var(--spool-cool-b); }
[data-design="a"] .rf-spool__bar[data-c="mid"]    { background: var(--spool-mid); }
[data-design="a"] .rf-spool__bar[data-c="warm-a"] { background: var(--spool-warm-a); }
[data-design="a"] .rf-spool__bar[data-c="warm-b"] { background: var(--spool-warm-b); }

[data-design="a"] .rf-spool .rf-spool__bar { animation: a-spool var(--dur-cycle-b) steps(1, end) infinite; }
[data-design="a"] .rf-spool .rf-spool__bar[data-c="cool-a"] { animation-delay: 0s; }
[data-design="a"] .rf-spool .rf-spool__bar[data-c="cool-b"] { animation-delay: calc(var(--dur-cycle-b) / -5 * 4); }
[data-design="a"] .rf-spool .rf-spool__bar[data-c="mid"]    { animation-delay: calc(var(--dur-cycle-b) / -5 * 3); }
[data-design="a"] .rf-spool .rf-spool__bar[data-c="warm-a"] { animation-delay: calc(var(--dur-cycle-b) / -5 * 2); }
[data-design="a"] .rf-spool .rf-spool__bar[data-c="warm-b"] { animation-delay: calc(var(--dur-cycle-b) / -5 * 1); }
@keyframes a-spool {
  0%, 18%    { opacity: 1; transform: scaleY(1); }
  20%, 100%  { opacity: 0.18; transform: scaleY(0.96); }
}
[data-design="a"] .rf-spool__label {
  position: absolute; left: 0; bottom: -22px;
  font-family: var(--font-display); font-size: 11px;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink-tertiary); white-space: nowrap;
}
[data-design="a"] .rf-ambient-b__body h2 {
  font-family: var(--font-headline); font-size: clamp(26px, 3.5vw, 32px);
  letter-spacing: -0.01em; margin: 0 0 var(--gap-conduit);
  color: var(--ink-primary); max-width: 32ch;
}
[data-design="a"] .rf-ambient-b__body p {
  font-size: clamp(16px, 1.6vw, 17px);
  color: var(--ink-secondary); line-height: 1.65;
  max-width: 60ch; margin: 0 0 var(--gap-bus);
}
[data-design="a"] .rf-trust__photos {
  display: flex; gap: var(--gap-circuit); flex-wrap: wrap;
  margin-top: var(--gap-circuit);
}
[data-design="a"] .rf-trust__photos img {
  width: clamp(160px, 30%, 220px); height: 160px;
  object-fit: cover; border-radius: var(--r-junction);
  opacity: 0.8;
  filter: saturate(0.7);
}

/* ── SERVICE AREA ───────────────────────────────────────────────── */
[data-design="a"] .rf-area {
  padding: var(--gap-service) clamp(16px, 4vw, 40px);
  border-top: 1px solid var(--graphite);
  display: grid; grid-template-columns: 1fr 1fr; gap: var(--gap-bus);
  align-items: start;
}
[data-design="a"] .rf-area__inner h2 {
  font-family: var(--font-headline); font-size: clamp(24px, 3.5vw, 32px);
  letter-spacing: -0.01em; margin: 0 0 var(--gap-circuit);
  color: var(--ink-primary);
}
[data-design="a"] .rf-area__list {
  list-style: none; padding: 0; margin: 0;
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: var(--gap-conduit) var(--gap-circuit);
  font-family: var(--font-display); font-size: 13px;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--ink-secondary);
}
[data-design="a"] .rf-area__photo img {
  width: 100%; height: clamp(200px, 30vw, 320px);
  object-fit: cover; border-radius: var(--r-junction);
  opacity: 0.6; filter: saturate(0.6);
}

/* ── FOOTER ─────────────────────────────────────────────────────── */
[data-design="a"] .rf-footer {
  padding: var(--gap-service) clamp(16px, 4vw, 40px);
  border-top: 1px solid var(--graphite);
  background: var(--panel-bg);
}
[data-design="a"] .rf-footer__inner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--gap-circuit);
  align-items: start;
}
[data-design="a"] .rf-footer__name {
  font-family: var(--font-display); font-size: 15px; font-weight: 600;
  letter-spacing: -0.005em; color: var(--ink-primary); margin: 0;
}
[data-design="a"] .rf-footer__lic {
  font-family: var(--font-display); font-size: 11px;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--ink-tertiary); margin: 4px 0 0;
}
[data-design="a"] .rf-footer__contact {
  display: flex; flex-direction: column; gap: var(--gap-knock);
}
[data-design="a"] .rf-footer__phone {
  font-family: var(--font-display); font-size: 14px; letter-spacing: 0.06em;
  color: var(--thermal-accent); text-decoration: none;
  min-height: 44px; display: flex; align-items: center;
}
[data-design="a"] .rf-footer__fb {
  font-family: var(--font-display); font-size: 12px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--ink-secondary); text-decoration: none;
  min-height: 44px; display: flex; align-items: center;
}
@media (hover: hover) and (pointer: fine) {
  [data-design="a"] .rf-footer__phone:hover,
  [data-design="a"] .rf-footer__fb:hover { color: var(--thermal-accent); }
}
[data-design="a"] .rf-footer__area p,
[data-design="a"] .rf-footer__legal p {
  font-size: 13px; color: var(--ink-tertiary); margin: 0;
  line-height: 1.6;
}

/* ── REDUCED-MOTION OVERRIDES ───────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  [data-design="a"] .rf-busbar__current  { animation: none; transform: translateX(180%); opacity: 0.5; }
  [data-design="a"] .rf-drawer           { transition: none; }
  [data-design="a"] [data-mf-role="cta"].rf-cta { animation: none; }
  [data-design="a"] .rf-loadmon__pulse   { animation-play-state: paused; opacity: 0.4; }
  [data-design="a"] .rf-spool__bar       { animation: none; opacity: 0.6; }
  [data-design="a"] .rf-pointer__line    { animation: none; transform: scaleX(1); opacity: 0.6; }
  /* Thermal state changes PRESERVED — only continuous animation stilled */
}

/* ── REVEAL SCROLL ANIMATION (viewport-enter) ──────────────────── */
@keyframes a-step-in {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}
[data-design="a"] .rf-reveal {
  opacity: 0; transform: translateY(10px);
  transition: opacity var(--dur-trace) var(--ease-energize),
              transform var(--dur-trace) var(--ease-energize);
}
[data-design="a"] .rf-reveal.is-visible {
  opacity: 1; transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  [data-design="a"] .rf-reveal { opacity: 1; transform: none; transition: none; }
}

/* ── PAUSED STATE (IntersectionObserver) ───────────────────────── */
[data-design="a"] .rf-ambient-a[data-paused="true"] .rf-loadmon__pulse { animation-play-state: paused; }
[data-design="a"] .rf-ambient-b[data-paused="true"] .rf-spool__bar     { animation-play-state: paused; }

/* ══════════════════════════════════════════════════════════════════
   MOBILE ANTI-HSCROLL BLOCK — scoped to .dq-design only (HARD RULE)
   NEVER bare [data-design] — leaks to chrome modal → modal_smoke_error
══════════════════════════════════════════════════════════════════ */
[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;
}

/* Breakpoint adjustments */
@media (max-width: 768px) {
  [data-design="a"] .rf-hero {
    grid-template-columns: 1fr; grid-template-rows: auto auto;
  }
  [data-design="a"] .rf-hero__photo {
    height: clamp(200px, 40vw, 280px);
    grid-row: 1; grid-column: 1;
    clip-path: none;
  }
  [data-design="a"] .rf-hero__content {
    grid-row: 2; padding-top: var(--gap-service);
  }
  [data-design="a"] .rf-area {
    grid-template-columns: 1fr;
  }
  [data-design="a"] .rf-ambient-b {
    grid-template-columns: 40px 1fr; gap: var(--gap-circuit);
  }
  [data-design="a"] .rf-spool { height: 140px; }
}
@media (max-width: 560px) {
  [data-design="a"] .rf-logo__sep,
  [data-design="a"] .rf-logo__lic { display: none; }
  [data-design="a"] .rf-loadmon__tag { flex-basis: 72px; font-size: 10px; }
  [data-design="a"] .rf-ambient-a { grid-template-columns: 1fr; }
  [data-design="a"] .rf-trust__photos img { width: clamp(130px, 45%, 180px); height: 130px; }
  [data-design="a"] .rf-area__list { grid-template-columns: 1fr; }
}
@media (max-width: 380px) {
  [data-design="a"] .rf-header__bar { padding-inline: 12px; min-height: 56px; }
  [data-design="a"] .rf-hero__headline { font-size: clamp(26px, 8vw, 40px); }
}

/* 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; }