/* =============================================================
   Mizu Design-B — Jacksonville Plumbing
   ALL selectors scoped to [data-design="b"].dq-design
   ZERO [data-design="b"].dq-design selectors — fully remapped
   CSS scoped under .dq-design to prevent chrome-kit leakage
   ============================================================= */

/* --- Design tokens ----------------------------------------- */
[data-design="b"].dq-design,
[data-design="b"] .dq-design {
  --mizu-shiro:   #F4EFE6;
  --mizu-cream:   #EBE2D0;
  --mizu-sumi:    #1A1612;
  --mizu-aizome:  #1B3A5C;
  --mizu-asagi:   #3E6F94;
  --mizu-mizu:    #A8C8DC;
  --mizu-hinoki:  #C9A876;
  --mizu-akane:   #9C3A2A;
  --mizu-matcha:  #5C7A4A;
  --mizu-mist:    rgba(27,58,92,0.08);

  --font-display: 'Cormorant Garamond', 'Times New Roman', serif;
  --font-body:    'Inter', -apple-system, system-ui, sans-serif;
  --font-mono:    ui-monospace, 'JetBrains Mono', monospace;

  --sp-drop:   4px;
  --sp-step:   8px;
  --sp-tile:   16px;
  --sp-shoji:  24px;
  --sp-tatami: 48px;
  --sp-ma:     96px;
  --sp-yu:     144px;

  --motion-settle:  cubic-bezier(0.22, 1, 0.36, 1);
  --motion-ripple:  cubic-bezier(0.16, 0.84, 0.44, 1);
  --motion-unfurl:  cubic-bezier(0.4, 0, 0.2, 1);
  --motion-inkdraw: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-drop:   240ms;
  --dur-ripple: 720ms;
  --dur-unfurl: 540ms;
  --dur-ambient-long:  24s;
  --dur-ambient-mid:   12s;

  --r-none: 0;
  --r-tile: 2px;
  --r-stone: 6px;
  --r-drop: 999px;

  --elev-flat: 0 0 0 1px var(--mizu-mist);
  --elev-pool: 0 1px 0 var(--mizu-mist), 0 18px 32px -16px rgba(27,58,92,0.18);

  /* Design-b primary exposure */
  --design-b-primary: var(--mizu-aizome);

  background: var(--mizu-shiro);
  color: var(--mizu-sumi);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.7;
  overflow-x: clip;
}

/* --- Mobile horizontal-scroll guard (scoped to .dq-design) - */
[data-design="b"].dq-design,
[data-design="b"] .dq-design {
  max-width: 100%;
  overflow-x: clip;
}
[data-design="b"].dq-design * { min-width: 0; }
[data-design="b"].dq-design img,
[data-design="b"].dq-design svg:not([data-keep-size]) {
  max-width: 100%;
  height: auto;
}

/* ============================================================
   ELEMENT 1 — Animated minimalist header
   ============================================================ */
[data-design="b"] .rf-header {
  position: sticky; top: 0; z-index: 30;
  background: var(--mizu-shiro);
  padding: var(--sp-shoji) clamp(20px, 5vw, 56px);
}
[data-design="b"] .rf-header__bar {
  display: flex; align-items: center; justify-content: space-between;
  position: relative; z-index: 2;
}
[data-design="b"] .rf-logo { text-decoration: none; }
[data-design="b"] .rf-logo__mark {
  font-family: var(--font-display);
  font-size: clamp(20px, 2.4vw, 26px);
  letter-spacing: -0.01em;
  color: var(--mizu-sumi);
  font-weight: 500;
}
[data-design="b"] .rf-hamburger {
  appearance: none; background: transparent; border: 0; cursor: pointer;
  display: flex; flex-direction: column; gap: 6px;
  padding: 10px 6px; min-height: 44px; min-width: 44px;
  align-items: flex-end; justify-content: center;
}
[data-design="b"] .rf-hamburger__rule {
  display: block; width: 28px; height: 1px; background: var(--mizu-sumi);
  transition: transform var(--dur-drop) var(--motion-settle);
}
[data-design="b"] .rf-hamburger[aria-expanded="true"] .rf-hamburger__rule:first-child {
  transform: translateY(3px) rotate(2deg);
}
[data-design="b"] .rf-hamburger[aria-expanded="true"] .rf-hamburger__rule:last-child {
  transform: translateY(-4px) rotate(-2deg);
}

[data-design="b"] .rf-header__hairline {
  position: absolute; left: 0; right: 0; bottom: 0;
  height: 1px; background: var(--mizu-aizome); opacity: 0.6;
}

/* Header ripple atmosphere (≥18s cycle — H-3) */
[data-design="b"] .rf-ripple {
  position: absolute; inset: 0; overflow: hidden; pointer-events: none;
}
[data-design="b"] .rf-ripple__ring {
  position: absolute; top: 50%; right: clamp(72px, 12vw, 160px);
  width: 8px; height: 8px; border-radius: 50%;
  border: 1px solid var(--mizu-asagi); opacity: 0;
  transform: translate(50%, -50%) scale(1);
  animation: b-ripple var(--dur-ambient-long) var(--motion-ripple) infinite;
}
[data-design="b"] .rf-ripple__ring--b { animation-delay: 8s; }
[data-design="b"] .rf-ripple__ring--c { animation-delay: 16s; }
@keyframes b-ripple {
  0%   { opacity: 0;    transform: translate(50%, -50%) scale(1); }
  6%   { opacity: 0.55; }
  60%  { opacity: 0;    transform: translate(50%, -50%) scale(14); }
  100% { opacity: 0;    transform: translate(50%, -50%) scale(14); }
}

/* Noren drawer */
[data-design="b"] .rf-noren {
  position: fixed; inset: 0; z-index: 40;
  display: grid; grid-template-rows: 1fr auto 1fr;
  pointer-events: none;
}
[data-design="b"] .rf-noren[hidden] { display: none; }
[data-design="b"] .rf-noren__panel {
  position: absolute; top: 0; bottom: 0; width: 50%;
  background: var(--mizu-shiro);
  transform: translateY(-100%);
  transition: transform var(--dur-unfurl) var(--motion-unfurl);
}
[data-design="b"] .rf-noren__panel--left  { left: 0; }
[data-design="b"] .rf-noren__panel--right { right: 0; transition-delay: 60ms; }
[data-design="b"] .rf-noren.is-open .rf-noren__panel { transform: translateY(0); }
[data-design="b"] .rf-noren__rule {
  position: absolute; top: 33%; left: 0; right: 0; height: 1px;
  background: var(--mizu-aizome); transform: scaleX(0); transform-origin: left;
  transition: transform 720ms var(--motion-ripple) 200ms;
}
[data-design="b"] .rf-noren.is-open .rf-noren__rule { transform: scaleX(1); }
[data-design="b"] .rf-noren__list {
  position: relative; z-index: 1; align-self: center; justify-self: center;
  list-style: none; padding: 0; margin: 0;
  font-family: var(--font-display); font-size: clamp(28px, 5.5vw, 52px);
  text-align: center; pointer-events: auto;
  opacity: 0; transform: translateY(8px);
  transition: opacity 360ms var(--motion-settle) 320ms,
              transform 360ms var(--motion-settle) 320ms;
}
[data-design="b"] .rf-noren.is-open .rf-noren__list { opacity: 1; transform: translateY(0); }
[data-design="b"] .rf-noren__list li { margin: var(--sp-step) 0; }
[data-design="b"] .rf-noren__list a { color: var(--mizu-sumi); text-decoration: none; }
[data-design="b"] .rf-noren__phone {
  display: inline-block;
  font-family: var(--font-body);
  font-size: clamp(18px, 2.8vw, 26px);
  color: var(--mizu-aizome);
  letter-spacing: 0.02em;
  margin-top: var(--sp-tile);
}
[data-design="b"] .rf-noren__close {
  position: absolute; top: var(--sp-shoji); right: var(--sp-shoji);
  background: transparent; border: 0; font-family: var(--font-body);
  font-size: 13px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--mizu-sumi); cursor: pointer; pointer-events: auto;
  min-height: 44px; min-width: 44px;
  opacity: 0; transition: opacity 240ms var(--motion-settle) 420ms;
}
[data-design="b"] .rf-noren.is-open .rf-noren__close { opacity: 1; }

/* ============================================================
   HERO — ELEMENT 3 backdrop + text layer
   isolation: isolate ensures text stays above any backdrop layer
   HERO-TEXT Z-INDEX HARD RULE
   ============================================================ */
[data-design="b"] .rf-hero {
  position: relative;
  isolation: isolate;
  min-height: clamp(480px, 75vh, 820px);
  display: flex; align-items: center;
  background: var(--mizu-shiro);
  overflow: hidden;
}

/* Backdrop layers — all z-index: 0 or negative */
[data-design="b"] .rf-hero__backdrop {
  position: absolute; inset: 0; z-index: 0;
  pointer-events: none; overflow: hidden;
}
[data-design="b"] .rf-hero__canvas {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  opacity: 0.38;
}
[data-design="b"] .rf-hero__geo {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: flex-end;
}
[data-design="b"] .rf-hero__geo-svg {
  width: clamp(280px, 55vw, 680px);
  height: auto;
  opacity: 0.22;
  color: var(--mizu-aizome);
}

/* Pipe geometry draw-in animations */
[data-design="b"] .rf-geo__pipe {
  stroke-width: 4;
  stroke-dasharray: 600;
  stroke-dashoffset: 600;
  animation: b-pipe-draw 2s var(--motion-inkdraw) forwards;
}
[data-design="b"] .rf-geo__pipe--2 { animation-delay: 0.4s; }
[data-design="b"] .rf-geo__pipe--3 { animation-delay: 0.8s; }
@keyframes b-pipe-draw {
  to { stroke-dashoffset: 0; }
}

[data-design="b"] .rf-geo__joint {
  stroke-width: 2;
  fill: var(--mizu-mizu);
  stroke: var(--mizu-aizome);
  opacity: 0;
  animation: b-joint-appear 0.4s var(--motion-settle) forwards;
}
[data-design="b"] .rf-geo__joint--1 { animation-delay: 0.6s; }
[data-design="b"] .rf-geo__joint--2 { animation-delay: 1.0s; }
[data-design="b"] .rf-geo__joint--3 { animation-delay: 1.3s; }
@keyframes b-joint-appear {
  from { transform: scale(0.5); opacity: 0; }
  to   { transform: scale(1);   opacity: 1; }
}

/* Pressure gauge — slow rotation ambient loop */
[data-design="b"] .rf-geo__gauge {
  stroke-width: 2; fill: none; stroke: var(--mizu-aizome);
  opacity: 0;
  animation: b-gauge-appear 0.5s var(--motion-settle) 1.4s forwards;
}
[data-design="b"] .rf-geo__gauge-needle {
  stroke-width: 2; stroke: var(--mizu-hinoki);
  transform-origin: 660px 80px;
  opacity: 0;
  animation: b-gauge-appear 0.5s var(--motion-settle) 1.5s forwards,
             b-gauge-sweep 8s var(--motion-settle) 2s infinite;
}
@keyframes b-gauge-appear {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes b-gauge-sweep {
  0%   { transform: rotate(-45deg); }
  50%  { transform: rotate(30deg); }
  100% { transform: rotate(-45deg); }
}

/* Drip at pipe end — sustained ambient */
[data-design="b"] .rf-geo__drip {
  fill: var(--mizu-mizu);
  opacity: 0;
  animation: b-drip-fall 5s var(--motion-ripple) 2s infinite;
}
@keyframes b-drip-fall {
  0%   { transform: translateY(-8px) scale(0.6); opacity: 0; }
  20%  { transform: translateY(0)    scale(1);   opacity: 0.85; }
  60%  { transform: translateY(0)    scale(1);   opacity: 0.85; }
  80%  { transform: translateY(6px)  scale(0.8); opacity: 0; }
  100% { transform: translateY(-8px) scale(0.6); opacity: 0; }
}

/* Canvas indigo-wash ambient (painted via JS) */

/* Hero content — explicit z-index above backdrop (HARD RULE) */
[data-design="b"] .rf-hero__content {
  position: relative;
  z-index: 10;
  max-width: min(680px, 90vw);
  margin: 0 auto 0 clamp(20px, 6vw, 96px);
  padding: var(--sp-yu) 0;
  display: flex; flex-direction: column; gap: var(--sp-shoji);
}

[data-design="b"] .rf-hero__headline {
  font-family: var(--font-display);
  font-size: clamp(32px, 5.5vw, 64px);
  line-height: 1.12;
  color: var(--mizu-sumi);
  margin: 0;
  opacity: 1; /* HARD RULE — opacity:1 at first paint */
}
[data-design="b"] .rf-hero__subtitle {
  font-family: var(--font-body);
  font-size: clamp(16px, 1.8vw, 20px);
  line-height: 1.6;
  color: var(--mizu-asagi);
  margin: 0;
  opacity: 1; /* HARD RULE */
  max-width: 52ch;
}

/* ============================================================
   ELEMENT 2 — Animated phone CTA (plumber primary conversion)
   tel: link, ≥44px tap target, ambient droplet animation
   ============================================================ */
[data-design="b"] .rf-cta {
  position: relative; display: inline-flex; align-items: center;
  gap: var(--sp-tile);
  padding: 18px 32px 18px 28px; min-height: 44px;
  background: var(--mizu-aizome); color: var(--mizu-shiro);
  font-family: var(--font-body); font-size: 16px; font-weight: 500;
  letter-spacing: 0.06em; text-transform: uppercase; text-decoration: none;
  border-radius: var(--r-tile); overflow: hidden; isolation: isolate;
  align-self: flex-start;
  transition: background var(--dur-drop) var(--motion-settle);
}
[data-design="b"] .rf-cta__label {
  position: relative; z-index: 2;
  opacity: 1; /* HARD RULE — never opacity:0 on text */
}
[data-design="b"] .rf-cta__drop {
  position: absolute; top: -10px; right: 22px; z-index: 2;
  width: 8px; height: 10px; background: var(--mizu-mizu);
  border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
  animation: b-cta-drop 5s var(--motion-ripple) infinite;
  opacity: 1; /* HARD RULE — resting must be opacity:1; animation from/to manages visibility via translateY */
}
[data-design="b"] .rf-cta__ripple {
  position: absolute; top: 50%; right: 22px; z-index: 1;
  width: 6px; height: 6px; border: 1px solid var(--mizu-mizu);
  border-radius: 50%;
  transform: translate(50%, -50%) scale(1);
  animation: b-cta-ring 5s var(--motion-ripple) infinite;
}
@keyframes b-cta-drop {
  0%, 70%  { transform: translateY(0);   opacity: 1; }
  78%      { transform: translateY(20px); opacity: 1; }
  82%      { transform: translateY(20px); opacity: 0; }
  100%     { transform: translateY(0);   opacity: 1; }
}
@keyframes b-cta-ring {
  0%, 78%  { opacity: 0; transform: translate(50%, -50%) scale(1); }
  82%      { opacity: 0.85; transform: translate(50%, -50%) scale(1); }
  100%     { opacity: 0;  transform: translate(50%, -50%) scale(18); }
}

@media (hover: hover) and (pointer: fine) {
  [data-design="b"] .rf-cta:hover { background: var(--mizu-asagi); }
  [data-design="b"] .rf-cta:hover .rf-cta__drop { animation-duration: 1.6s; }
}
[data-design="b"] .rf-cta:focus-visible {
  outline: none; box-shadow: 0 0 0 3px var(--mizu-mizu);
}
[data-design="b"] .rf-cta:active { transform: translateY(1px); }

/* Services section phone CTA variant */
[data-design="b"] .rf-cta--services {
  margin-top: var(--sp-tatami);
}

/* ============================================================
   ELEMENT 6 — Pointer (hydraulic-warm, immediately before #funnel)
   NOT a button — wayfinding only
   MUST remain visible: wrapper opacity:1, height ≥8px
   ============================================================ */
[data-design="b"] .rf-pointer {
  display: flex;
  justify-content: center;
  padding: clamp(40px, 8vw, 80px) 16px clamp(56px, 10vw, 96px);
  background: var(--mizu-shiro);
  opacity: 1; /* HARD RULE — must be visible */
}
[data-design="b"] .b-pointer__hit {
  position: relative;
  display: inline-block;
  width: 2px;
  height: 96px;
  text-decoration: none;
  color: var(--mizu-aizome);
}
[data-design="b"] .b-pointer__pipe {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, transparent 0%, currentColor 100%);
  transform-origin: top center;
  animation: b-pointer-fill 5s ease-out infinite;
  opacity: 0.7;
}
[data-design="b"] .b-pointer__drop {
  position: absolute;
  left: 50%; bottom: -4px;
  width: 8px; height: 8px; margin-left: -4px;
  background: currentColor;
  border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
  transform: translateY(-72px) scale(0.92);
  opacity: 0;
  animation: b-pointer-drip 5s ease-in infinite;
}
@keyframes b-pointer-fill {
  0%, 100% { transform: scaleY(0.4); opacity: 0.45; }
  60%      { transform: scaleY(1);   opacity: 0.85; }
}
@keyframes b-pointer-drip {
  0%, 55%  { transform: translateY(-72px) scale(0.92); opacity: 0; }
  70%      { transform: translateY(-72px) scale(1);    opacity: 1; }
  92%      { transform: translateY(0)     scale(1);    opacity: 1; }
  100%     { transform: translateY(0)     scale(0.2);  opacity: 0; }
}

/* ============================================================
   ELEMENT 5 — 5-step scheduling funnel
   id="funnel" data-mf-role="funnel"
   ============================================================ */
[data-design="b"] .b-funnel {
  background: var(--mizu-shiro);
  padding: var(--sp-yu) clamp(20px, 5vw, 56px);
}
[data-design="b"] .b-funnel__container {
  max-width: 800px; margin: 0 auto;
  position: relative;
}
[data-design="b"] .rf-interactive__head { max-width: 600px; margin-bottom: var(--sp-tatami); }
[data-design="b"] .rf-interactive__head h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 44px);
  margin: 0 0 var(--sp-tile); color: var(--mizu-sumi); line-height: 1.15;
}
[data-design="b"] .rf-interactive__lede {
  font-family: var(--font-body); font-size: 17px; line-height: 1.6;
  color: var(--mizu-sumi); max-width: 52ch; margin: 0;
}

[data-design="b"] .b-funnel__step-label {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--mizu-asagi);
  margin: 0 0 var(--sp-tile);
}
[data-design="b"] .b-funnel__step {
  animation: b-step-enter var(--dur-unfurl) var(--motion-settle) both;
}
[data-design="b"] .b-funnel__step[hidden] { display: none; }
@keyframes b-step-enter {
  from { opacity: 0.92; transform: translateY(6px); }
  to   { opacity: 1;    transform: translateY(0); }
}

[data-design="b"] .b-funnel__chips {
  display: flex; flex-wrap: wrap; gap: var(--sp-step);
  margin-bottom: var(--sp-shoji);
}

/* Funnel option chips (data-mf-role="funnel-option") */
[data-design="b"] .b-chip {
  appearance: none; border: 1px solid var(--mizu-aizome);
  background: transparent; color: var(--mizu-aizome);
  font-family: var(--font-body); font-size: 15px;
  padding: 12px 18px; min-height: 44px; cursor: pointer;
  border-radius: var(--r-tile);
  transition: background var(--dur-drop) var(--motion-settle),
              color var(--dur-drop) var(--motion-settle);
}
[data-design="b"] .b-chip[aria-checked="true"] {
  background: var(--mizu-aizome); color: var(--mizu-shiro);
}
@media (hover: hover) and (pointer: fine) {
  [data-design="b"] .b-chip:hover {
    background: var(--mizu-asagi); color: var(--mizu-shiro);
    border-color: var(--mizu-asagi);
  }
}
[data-design="b"] .b-chip:focus-visible {
  outline: none; box-shadow: 0 0 0 3px var(--mizu-mizu);
}

[data-design="b"] .b-funnel__nav {
  display: flex; gap: var(--sp-tile); flex-wrap: wrap;
  margin-top: var(--sp-tile);
}

/* Emergency nudge — toggled display:block by JS, never opacity */
[data-design="b"] .b-funnel__emergency-nudge {
  background: var(--mizu-cream);
  border-left: 3px solid var(--mizu-hinoki);
  padding: var(--sp-tile) var(--sp-shoji);
  margin-bottom: var(--sp-tile);
  font-size: 15px; color: var(--mizu-sumi);
}
[data-design="b"] .b-funnel__tel {
  color: var(--mizu-aizome); font-weight: 600; text-decoration: none;
}

[data-design="b"] .b-funnel__form {
  display: grid; gap: var(--sp-tile);
}

/* Progress bar */
[data-design="b"] .b-funnel__progress {
  height: 2px; background: var(--mizu-mist);
  margin-top: var(--sp-tatami); border-radius: var(--r-drop);
  overflow: hidden;
}
[data-design="b"] .b-funnel__progress-fill {
  height: 100%; background: var(--mizu-aizome);
  transform: scaleX(0.2); transform-origin: left;
  transition: transform 400ms var(--motion-settle);
}

/* Funnel done state */
[data-design="b"] .b-funnel__done {
  text-align: center;
  padding: var(--sp-yu) clamp(20px, 4vw, 40px);
  background: var(--mizu-cream); border: 1px solid var(--mizu-mist);
  opacity: 0; transform: translateY(8px);
  transition: opacity var(--dur-unfurl) var(--motion-unfurl),
              transform var(--dur-unfurl) var(--motion-unfurl);
}
[data-design="b"] .b-funnel__done[hidden] { display: none; }
[data-design="b"] .b-funnel.is-done .b-funnel__done { opacity: 1; transform: translateY(0); }
[data-design="b"] .b-funnel__done h3 {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.2vw, 34px);
  color: var(--mizu-sumi); margin: var(--sp-tile) 0 var(--sp-step);
}
[data-design="b"] .b-funnel__done p {
  font-size: 16px; color: var(--mizu-sumi);
}
[data-design="b"] .b-funnel__done a {
  color: var(--mizu-aizome); font-weight: 600; text-decoration: none;
}

/* Hanko seal */
[data-design="b"] .rf-hanko {
  display: inline-flex; align-items: center; justify-content: center;
  width: 64px; height: 64px; border-radius: 50%;
  background: var(--mizu-akane); color: var(--mizu-shiro);
  font-family: var(--font-display); font-size: 34px;
  transform: scale(0.92) rotate(-6deg); opacity: 0;
  transition: transform 420ms var(--motion-settle),
              opacity 420ms var(--motion-settle);
}
[data-design="b"] .b-funnel.is-done .rf-hanko {
  transform: scale(1) rotate(-6deg); opacity: 1;
}

/* ============================================================
   Shared form components
   ============================================================ */
[data-design="b"] .rf-field {
  display: flex; flex-direction: column; gap: 6px;
}
[data-design="b"] .rf-field__label {
  font-family: var(--font-body); font-size: 11px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--mizu-asagi);
}
[data-design="b"] .rf-field__input {
  appearance: none; background: var(--mizu-shiro); color: var(--mizu-sumi);
  border: 0; border-bottom: 1px solid var(--mizu-aizome);
  padding: 12px 10px; font-family: var(--font-body); font-size: 15px;
  border-radius: 0; min-height: 44px;
  transition: border-color var(--dur-drop) var(--motion-settle);
}
[data-design="b"] .rf-field__input--area { min-height: 64px; resize: vertical; }
[data-design="b"] .rf-field__input:focus-visible {
  outline: none; border-bottom-color: var(--mizu-asagi);
  box-shadow: 0 1px 0 0 var(--mizu-asagi);
}

/* Stamp buttons */
[data-design="b"] .rf-stamp {
  appearance: none; cursor: pointer;
  padding: 14px 22px; min-height: 44px;
  font-family: var(--font-body); font-size: 13px; letter-spacing: 0.1em;
  text-transform: uppercase; border-radius: var(--r-tile);
  border: 1px solid var(--mizu-aizome);
  transition: background var(--dur-drop) var(--motion-settle),
              transform var(--dur-drop) var(--motion-settle);
}
[data-design="b"] .rf-stamp--primary {
  background: var(--mizu-aizome); color: var(--mizu-shiro);
}
[data-design="b"] .rf-stamp--primary:disabled {
  opacity: 0.45; cursor: not-allowed;
}
[data-design="b"] .rf-stamp--ghost {
  background: transparent; color: var(--mizu-sumi);
}
[data-design="b"] .rf-stamp:focus-visible {
  outline: none; box-shadow: 0 0 0 3px var(--mizu-mizu);
}
[data-design="b"] .rf-stamp:active { transform: translateY(1px); }
@media (hover: hover) and (pointer: fine) {
  [data-design="b"] .rf-stamp--primary:not(:disabled):hover {
    background: var(--mizu-asagi);
  }
}

/* ============================================================
   ELEMENT 3 (ambient A) — Services tile grid
   ============================================================ */
[data-design="b"] .rf-ambient-a {
  padding: var(--sp-yu) clamp(20px, 5vw, 56px);
  background: var(--mizu-shiro);
}
[data-design="b"] .rf-ambient-a__inner {
  max-width: 1280px; margin: 0 auto;
}
[data-design="b"] .rf-ambient-a__head { max-width: 720px; margin-bottom: var(--sp-tatami); }
[data-design="b"] .rf-eyebrow {
  font-family: var(--font-body); font-size: 12px; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--mizu-asagi); margin: 0 0 var(--sp-tile);
}
[data-design="b"] .rf-ambient-a__head h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4.5vw, 44px);
  margin: 0; color: var(--mizu-sumi); line-height: 1.15;
}

[data-design="b"] .rf-tilegrid {
  list-style: none; margin: 0; padding: 0;
  display: grid; gap: 2px;
  grid-template-columns: repeat(auto-fit, minmax(min(220px, 100%), 1fr));
  background: var(--mizu-aizome);
  border: 1px solid var(--mizu-aizome);
}
[data-design="b"] .rf-tile {
  position: relative; padding: var(--sp-tatami) var(--sp-shoji);
  background: var(--mizu-aizome); color: var(--mizu-shiro);
  display: flex; flex-direction: column; gap: var(--sp-tile);
  isolation: isolate; overflow: hidden;
}
[data-design="b"] .rf-tile::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--mizu-asagi) 0%, var(--mizu-aizome) 60%);
  opacity: 0;
  animation: b-tile-glaze var(--dur-ambient-mid) var(--motion-ripple) infinite;
  z-index: 0;
}
[data-design="b"] .rf-tile:nth-child(7n+1)::before { animation-delay: 0s; }
[data-design="b"] .rf-tile:nth-child(7n+2)::before { animation-delay: 1.7s; }
[data-design="b"] .rf-tile:nth-child(7n+3)::before { animation-delay: 3.4s; }
[data-design="b"] .rf-tile:nth-child(7n+4)::before { animation-delay: 5.1s; }
[data-design="b"] .rf-tile:nth-child(7n+5)::before { animation-delay: 6.8s; }
[data-design="b"] .rf-tile:nth-child(7n+6)::before { animation-delay: 8.5s; }
[data-design="b"] .rf-tile:nth-child(7n+7)::before { animation-delay: 10.2s; }
@keyframes b-tile-glaze {
  0%, 100% { opacity: 0; }
  40%      { opacity: 0.45; }
  60%      { opacity: 0.45; }
}
[data-design="b"] .rf-tile > * { position: relative; z-index: 1; }
[data-design="b"] .rf-tile__num {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.08em;
  color: var(--mizu-mizu);
}
[data-design="b"] .rf-tile__name {
  font-family: var(--font-display); font-size: clamp(20px, 2.4vw, 26px);
  line-height: 1.2;
}
[data-design="b"] .rf-tile__range {
  font-family: var(--font-body); font-size: 13px;
  color: var(--mizu-mizu); margin-top: auto;
  line-height: 1.5;
}
[data-design="b"] .rf-ambient-a__cta-row {
  display: flex; margin-top: var(--sp-tatami);
}

/* ============================================================
   ELEMENT 4 (ambient B) — About / craft + kanji draw
   ============================================================ */
[data-design="b"] .rf-ambient-b {
  padding: var(--sp-yu) clamp(20px, 5vw, 56px);
  background: var(--mizu-cream);
}
[data-design="b"] .rf-ambient-b__grid {
  display: grid; gap: var(--sp-tatami);
  grid-template-columns: minmax(180px, 1fr) minmax(0, 1.6fr);
  align-items: center; max-width: 1180px; margin: 0 auto;
}
[data-design="b"] .rf-kanji {
  margin: 0; display: flex; flex-direction: column;
  gap: var(--sp-tile); align-items: center;
}
[data-design="b"] .rf-kanji svg {
  width: clamp(140px, 20vw, 240px); height: auto; max-width: 100%;
}
[data-design="b"] .rf-kanji__stroke {
  fill: none; stroke: var(--mizu-aizome); stroke-width: 8;
  stroke-linecap: round; stroke-linejoin: round;
  stroke-dasharray: 240; stroke-dashoffset: 240;
  opacity: 0.78;
}
[data-design="b"] .rf-ambient-b.is-drawn .rf-kanji__stroke {
  animation: b-ink-draw 1.6s var(--motion-inkdraw) forwards,
             b-ink-breath 18s var(--motion-settle) 1.6s infinite;
}
[data-design="b"] .rf-ambient-b.is-drawn .rf-kanji__stroke:nth-child(2) { animation-delay: 220ms, 1.82s; }
[data-design="b"] .rf-ambient-b.is-drawn .rf-kanji__stroke:nth-child(3) { animation-delay: 440ms, 2.04s; }
[data-design="b"] .rf-ambient-b.is-drawn .rf-kanji__stroke:nth-child(4) { animation-delay: 660ms, 2.26s; }
[data-design="b"] .rf-ambient-b.is-drawn .rf-kanji__stroke:nth-child(5) { animation-delay: 880ms, 2.48s; }
@keyframes b-ink-draw {
  to { stroke-dashoffset: 0; }
}
@keyframes b-ink-breath {
  0%, 100% { opacity: 0.78; }
  50%      { opacity: 0.92; }
}
[data-design="b"] .rf-kanji__caption {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--mizu-asagi);
}
[data-design="b"] .rf-ambient-b__body h2 {
  font-family: var(--font-display);
  font-size: clamp(26px, 4vw, 40px);
  margin: 0 0 var(--sp-shoji); color: var(--mizu-sumi); line-height: 1.2;
}
[data-design="b"] .rf-ambient-b__copy {
  font-family: var(--font-body); font-size: 17px; line-height: 1.7;
  color: var(--mizu-sumi); max-width: 60ch;
}
[data-design="b"] .rf-ambient-b__copy p { margin: 0 0 var(--sp-tile); }
[data-design="b"] .rf-ambient-b__tel {
  color: var(--mizu-aizome); font-weight: 600; text-decoration: none;
}

/* ============================================================
   FOOTER
   ============================================================ */
[data-design="b"] .rf-footer {
  background: var(--mizu-aizome); color: var(--mizu-shiro);
  padding: var(--sp-yu) clamp(20px, 5vw, 56px) var(--sp-tatami);
  border-top: 2px solid var(--mizu-hinoki);
}
[data-design="b"] .rf-footer__inner {
  display: grid; gap: var(--sp-tatami);
  grid-template-columns: repeat(auto-fit, minmax(min(200px, 100%), 1fr));
  max-width: 1280px; margin: 0 auto;
}
[data-design="b"] .rf-footer__firm {
  font-family: var(--font-display);
  font-size: clamp(20px, 2.2vw, 26px);
  margin: 0 0 var(--sp-step);
}
[data-design="b"] .rf-footer__phone {
  display: block; font-size: 22px; font-weight: 600;
  color: var(--mizu-hinoki); text-decoration: none;
  margin-bottom: var(--sp-step);
}
[data-design="b"] .rf-footer__note {
  font-size: 14px; color: var(--mizu-mizu); margin: 0;
}
[data-design="b"] .rf-footer__label {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--mizu-mizu);
  margin: 0 0 var(--sp-tile);
}
[data-design="b"] .rf-footer__list {
  list-style: none; margin: 0; padding: 0;
  font-size: 15px; color: var(--mizu-shiro);
  display: flex; flex-direction: column; gap: var(--sp-step);
}
[data-design="b"] .rf-footer__bar {
  max-width: 1280px; margin: var(--sp-tatami) auto 0;
  padding-top: var(--sp-tile);
  border-top: 1px solid rgba(164,200,220,0.3);
  font-size: 13px; color: var(--mizu-mizu);
}

/* ============================================================
   SCROLL-DRIVEN motion — TRIAD-2 (genuine parallax)
   Hero backdrop scrolls at a different rate from the content
   Uses CSS scroll-driven animations (supported Chrome 115+)
   Fallback: transform on scroll via JS for older browsers
   ============================================================ */
@supports (animation-timeline: scroll()) {
  [data-design="b"] .rf-hero__backdrop {
    animation: b-hero-parallax linear both;
    animation-timeline: scroll(root block);
    animation-range: 0px 600px;
  }
  @keyframes b-hero-parallax {
    from { transform: translateY(0); }
    to   { transform: translateY(120px); }
  }
  [data-design="b"] .rf-hero__geo-svg {
    animation: b-geo-drift linear both;
    animation-timeline: scroll(root block);
    animation-range: 0px 600px;
  }
  @keyframes b-geo-drift {
    from { transform: translateX(0) scale(1); opacity: 0.22; }
    to   { transform: translateX(40px) scale(1.04); opacity: 0.12; }
  }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
  [data-design="b"] .rf-ambient-b__grid {
    grid-template-columns: 1fr;
  }
  [data-design="b"] .rf-hero__content {
    margin: 0 auto;
    padding: var(--sp-tatami) clamp(20px, 5vw, 32px);
  }
}
@media (max-width: 560px) {
  [data-design="b"] .rf-ripple__ring {
    right: clamp(56px, 18vw, 96px);
  }
  [data-design="b"] .rf-ambient-a {
    padding: var(--sp-tatami) var(--sp-shoji);
  }
  [data-design="b"] .b-funnel__chips {
    flex-direction: column;
  }
  [data-design="b"] .b-chip {
    width: 100%;
    text-align: left;
  }
}
@media (max-width: 380px) {
  [data-design="b"] .rf-header {
    padding: var(--sp-tile) var(--sp-shoji);
  }
  [data-design="b"] .rf-logo__mark { font-size: 18px; }
}

/* ============================================================
   REDUCED MOTION FALLBACKS
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  [data-design="b"] .rf-ripple__ring {
    animation: none; opacity: 0.25;
    transform: translate(50%, -50%) scale(6);
  }
  [data-design="b"] .rf-noren__panel,
  [data-design="b"] .rf-noren__rule,
  [data-design="b"] .rf-noren__list { transition-duration: 0ms; }

  [data-design="b"] .rf-cta__drop,
  [data-design="b"] .rf-cta__ripple { animation: none; opacity: 1; transform: none; }

  [data-design="b"] .rf-geo__pipe { animation: none; stroke-dashoffset: 0; }
  [data-design="b"] .rf-geo__joint { animation: none; opacity: 0.8; }
  [data-design="b"] .rf-geo__gauge { animation: none; opacity: 0.8; }
  [data-design="b"] .rf-geo__gauge-needle { animation: none; opacity: 0.8; }
  [data-design="b"] .rf-geo__drip { animation: none; opacity: 0.6; }

  [data-design="b"] .b-pointer__pipe,
  [data-design="b"] .b-pointer__drop { animation: none; opacity: 0.5; }

  [data-design="b"] .rf-tile::before { animation: none; opacity: 0.2; }

  [data-design="b"] .rf-ambient-b .rf-kanji__stroke {
    animation: none; stroke-dashoffset: 0; opacity: 0.85;
  }

  [data-design="b"] .b-funnel__step { animation: none; }
  [data-design="b"] .b-funnel__done,
  [data-design="b"] .rf-hanko { transition-duration: 0ms; }

  [data-design="b"] .rf-hero__backdrop,
  [data-design="b"] .rf-hero__geo-svg { animation: none; }
}

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