/* ════════════════════════════════════════════════════════════════
   Magic Flow Plumbing — Design A (Mizu)
   All selectors scoped to [data-design="a"].dq-design
   ZERO [data-design="a"].dq-design selectors
   ════════════════════════════════════════════════════════════════ */

/* ── Design tokens ──────────────────────────────────────────── */
[data-design="a"].dq-design,
[data-design="a"] .dq-design {
  --design-a-primary: #1B3A5C;

  /* Palette — Mizu */
  --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);

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

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

  /* Motion */
  --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;

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

  /* Elevation */
  --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);

  /* Reset */
  box-sizing: border-box;
  font-family: var(--font-body);
  color: var(--mizu-sumi);
  background: var(--mizu-shiro);
  max-width: 100%;
  overflow-x: clip;
}

[data-design="a"].dq-design *,
[data-design="a"] .dq-design * { box-sizing: border-box; min-width: 0; }

[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: 30;
  background: var(--mizu-shiro);
  padding: var(--sp-shoji) clamp(20px, 5vw, 56px);
}
[data-design="a"] .rf-header__bar {
  display: flex; align-items: center; justify-content: space-between;
  position: relative; z-index: 2;
}
[data-design="a"] .rf-logo { text-decoration: none; }
[data-design="a"] .rf-logo__mark {
  font-family: var(--font-display);
  font-size: clamp(18px, 2.4vw, 26px);
  letter-spacing: -0.01em;
  color: var(--mizu-sumi);
  font-weight: 500;
}
[data-design="a"] .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; justify-content: center;
}
[data-design="a"] .rf-hamburger__rule {
  display: block; width: 28px; height: 1px; background: var(--mizu-sumi);
  transition: transform var(--dur-drop) var(--motion-settle);
}
[data-design="a"] .rf-hamburger[aria-expanded="true"] .rf-hamburger__rule:first-child { transform: translateY(3px) rotate(2deg); }
[data-design="a"] .rf-hamburger[aria-expanded="true"] .rf-hamburger__rule:last-child  { transform: translateY(-4px) rotate(-2deg); }
[data-design="a"] .rf-header__hairline {
  position: absolute; left: 0; right: 0; bottom: 0;
  height: 1px; background: var(--mizu-aizome); opacity: 0.6;
}

/* Header ripple (E1 atmospheric layer) */
[data-design="a"] .rf-ripple {
  position: absolute; inset: 0; overflow: hidden; pointer-events: none;
}
[data-design="a"] .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: a-ripple var(--dur-ambient-long) var(--motion-ripple) infinite;
}
[data-design="a"] .rf-ripple__ring--b { animation-delay: 8s; }
[data-design="a"] .rf-ripple__ring--c { animation-delay: 16s; }
@keyframes a-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="a"] .rf-noren {
  position: fixed; inset: 0; z-index: 40;
  display: grid; grid-template-rows: 1fr auto 1fr;
  pointer-events: none;
}
[data-design="a"] .rf-noren[hidden] { display: none; }
[data-design="a"] .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="a"] .rf-noren__panel--left  { left: 0; }
[data-design="a"] .rf-noren__panel--right { right: 0; transition-delay: 60ms; }
[data-design="a"] .rf-noren.is-open .rf-noren__panel { transform: translateY(0); }
[data-design="a"] .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="a"] .rf-noren.is-open .rf-noren__rule { transform: scaleX(1); }
[data-design="a"] .rf-noren__list {
  position: relative; z-index: 1; align-self: center; justify-self: center;
  list-style: none; padding: 0 var(--sp-shoji); margin: 0;
  font-family: var(--font-display); font-size: clamp(28px, 6vw, 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="a"] .rf-noren.is-open .rf-noren__list { opacity: 1; transform: translateY(0); pointer-events: auto; }
[data-design="a"] .rf-noren__list li { margin: var(--sp-step) 0; }
[data-design="a"] .rf-noren__list a { color: var(--mizu-sumi); text-decoration: none; }
[data-design="a"] .rf-noren__phone {
  display: block; font-family: var(--font-body);
  font-size: clamp(18px, 3vw, 24px);
  color: var(--mizu-aizome); margin-top: var(--sp-tile);
  text-decoration: none;
}
[data-design="a"] .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; padding: var(--sp-step);
  opacity: 0; transition: opacity 240ms var(--motion-settle) 420ms;
}
[data-design="a"] .rf-noren.is-open .rf-noren__close { opacity: 1; }

/* ── HERO ────────────────────────────────────────────────────── */
[data-design="a"] .mf-hero {
  position: relative;
  isolation: isolate;
  min-height: clamp(480px, 70vh, 680px);
  display: flex; align-items: center;
  overflow: hidden;
  background: var(--mizu-aizome);
}

/* Hero backdrop — E3: single animated layer, perceptible + sustained ambient */
[data-design="a"] .mf-hero__backdrop {
  position: absolute; inset: 0; z-index: 0;
  overflow: hidden; pointer-events: none;
}

/* Copper-glow halo — visible color field, breath cycle ≥6s, opacity ≥0.25 */
[data-design="a"] .mf-hero__glow {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 70% 60% at 70% 50%,
    rgba(201,168,118,0.32) 0%,
    rgba(62,111,148,0.18) 50%,
    transparent 80%);
  animation: a-glow-breath 8s var(--motion-settle) infinite;
}
@keyframes a-glow-breath {
  0%, 100% { opacity: 0.65; }
  50%       { opacity: 1; }
}

/* Pipe SVG illustration in backdrop */
[data-design="a"] .mf-hero__pipe-svg {
  position: absolute; inset: 0; width: 100%; height: 100%;
  opacity: 0.18;
}
/* Pipe lines — draw in using scaleX/scaleY from transform-origin */
[data-design="a"] .mf-pipe {
  stroke: var(--mizu-hinoki); stroke-width: 3; fill: none;
  stroke-linecap: round;
}
[data-design="a"] .mf-pipe--h {
  transform-origin: left center;
  transform: scaleX(0);
  animation: a-pipe-draw-h 2s var(--motion-inkdraw) 0.3s forwards,
             a-pipe-pulse 8s var(--motion-settle) 2.3s infinite;
}
[data-design="a"] .mf-pipe--v {
  transform-origin: top center;
  transform: scaleY(0);
  animation: a-pipe-draw-v 1.2s var(--motion-inkdraw) 0.8s forwards;
}
[data-design="a"] .mf-pipe--v2 {
  transform-origin: top center;
  transform: scaleY(0);
  animation: a-pipe-draw-v 1.4s var(--motion-inkdraw) 1.4s forwards;
}
@keyframes a-pipe-draw-h {
  to { transform: scaleX(1); }
}
@keyframes a-pipe-draw-v {
  to { transform: scaleY(1); }
}
@keyframes a-pipe-pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.55; }
}
[data-design="a"] .mf-pipe__joint {
  fill: var(--mizu-hinoki); stroke: none;
  opacity: 0;
  animation: a-joint-appear 0.3s var(--motion-settle) 1.6s forwards;
}
@keyframes a-joint-appear {
  to { opacity: 1; }
}
[data-design="a"] .mf-pipe__tick {
  stroke: var(--mizu-mizu); stroke-width: 1.5; fill: none;
  opacity: 0;
  animation: a-joint-appear 0.3s var(--motion-settle) 2s forwards;
}

/* Flow droplets — sustained ambient motion along the pipe */
[data-design="a"] .mf-drop {
  fill: var(--mizu-mizu);
  animation: a-drop-flow 6s var(--motion-ripple) infinite;
}
[data-design="a"] .mf-drop--1 { animation-delay: 0s; }
[data-design="a"] .mf-drop--2 { animation-delay: 2s; }
[data-design="a"] .mf-drop--3 { animation-delay: 4s; }
@keyframes a-drop-flow {
  0%   { transform: translateX(0); opacity: 0; }
  5%   { opacity: 1; }
  90%  { transform: translateX(900px); opacity: 1; }
  100% { transform: translateX(900px); opacity: 0; }
}

/* Hero content layer — must be ABOVE backdrop (z-index) */
[data-design="a"] .mf-hero__content {
  position: relative;
  z-index: 2;
  padding: clamp(56px, 8vh, 96px) clamp(20px, 5vw, 80px);
  max-width: 1280px;
  margin: 0 auto;
  width: 100%;
}
[data-design="a"] .mf-hero__headline {
  font-family: var(--font-display);
  font-size: clamp(36px, 5.5vw, 72px);
  color: var(--mizu-shiro);
  line-height: 1.1;
  margin: 0 0 var(--sp-tile);
  max-width: 18ch;
  /* opacity:1 at first paint — HARD rule */
  opacity: 1;
}
[data-design="a"] .mf-hero__subtitle {
  font-family: var(--font-body);
  font-size: clamp(17px, 2vw, 22px);
  color: var(--mizu-mizu);
  margin: 0 0 var(--sp-shoji);
  line-height: 1.5;
  opacity: 1;
}
[data-design="a"] .mf-hero__proof {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: rgba(168,200,220,0.75);
  margin: 0 0 var(--sp-tatami);
  opacity: 1;
}

/* ── ELEMENT 2: Phone CTA (animated, tel: link) ─────────────── */
[data-design="a"] .rf-cta {
  position: relative; display: inline-flex; align-items: center; gap: var(--sp-tile);
  padding: 18px 28px 18px 26px; min-height: 44px;
  background: var(--mizu-hinoki); color: var(--mizu-sumi);
  font-family: var(--font-body); font-size: 15px; letter-spacing: 0.06em;
  text-transform: uppercase; text-decoration: none;
  border-radius: var(--r-tile); overflow: hidden; isolation: isolate;
  transition: background var(--dur-drop) var(--motion-settle);
}
[data-design="a"] .rf-cta__label { position: relative; z-index: 2; }
[data-design="a"] .rf-cta__drop {
  position: absolute; top: -10px; right: 22px; z-index: 2;
  width: 8px; height: 10px; background: var(--mizu-aizome);
  border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
  animation: a-cta-drop 5s var(--motion-ripple) infinite;
}
[data-design="a"] .rf-cta__ripple {
  position: absolute; top: 50%; right: 22px; z-index: 1;
  width: 6px; height: 6px; border: 1px solid var(--mizu-aizome);
  border-radius: 50%; opacity: 1;
  transform: translate(50%, -50%) scale(0.96);
  animation: a-cta-ring 5s var(--motion-ripple) infinite;
}
@keyframes a-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 a-cta-ring {
  0%, 76%  { opacity: 0.08; transform: translate(50%, -50%) scale(0.96); }
  80%      { opacity: 0.85; transform: translate(50%, -50%) scale(1); }
  100%     { opacity: 0.08; transform: translate(50%, -50%) scale(18); }
}
[data-design="a"] .rf-cta:focus-visible {
  outline: none; box-shadow: 0 0 0 3px var(--mizu-mizu);
}
[data-design="a"] .rf-cta:active { transform: translateY(1px); }
[data-design="a"] .rf-cta--mid {
  background: var(--mizu-aizome); color: var(--mizu-shiro); margin-top: var(--sp-shoji);
}
[data-design="a"] .rf-cta--mid .rf-cta__drop { background: var(--mizu-mizu); }
[data-design="a"] .rf-cta--mid .rf-cta__ripple { border-color: var(--mizu-mizu); }

/* ── ELEMENT 6: Pointer (hydraulic-warm) ────────────────────── */
[data-design="a"] .mizu-pointer {
  display: flex;
  justify-content: center;
  padding: clamp(40px, 8vw, 80px) 16px clamp(56px, 10vw, 96px);
  background: var(--mizu-shiro);
  /* HARD: opacity:1, visible, height >> 8px */
  opacity: 1;
}
[data-design="a"] .mizu-pointer__hit {
  position: relative;
  display: inline-block;
  width: 2px;
  height: 96px;
  text-decoration: none;
  color: var(--mizu-aizome);
}
[data-design="a"] .mizu-pointer__pipe {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 0%, currentColor 100%);
  transform-origin: top center;
  transform: scaleY(0.4);
  opacity: 0.7;
  animation: a-pointer-fill 5s ease-out infinite;
}
[data-design="a"] .mizu-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(0.4);
  opacity: 0;
  animation: a-pointer-drip 5s ease-out infinite;
}
@keyframes a-pointer-fill {
  0%, 100% { transform: scaleY(0.4); opacity: 0.45; }
  60%      { transform: scaleY(1);   opacity: 0.85; }
}
@keyframes a-pointer-drip {
  0%, 55%  { transform: translateY(-72px) scale(0.4); 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 funnel ───────────────────────────────── */
[data-design="a"] .rf-interactive {
  padding: var(--sp-yu) clamp(20px, 5vw, 56px);
  background: var(--mizu-cream);
}
[data-design="a"] .rf-funnel-wrap {
  max-width: 1280px;
  margin: 0 auto;
}
[data-design="a"] .rf-interactive__head { max-width: 720px; margin-bottom: var(--sp-tatami); }
[data-design="a"] .rf-interactive__head h2 {
  font-family: var(--font-display); font-size: clamp(30px, 4.5vw, 44px);
  margin: 0 0 var(--sp-tile); color: var(--mizu-sumi); line-height: 1.15;
}
[data-design="a"] .rf-interactive__lede {
  font-family: var(--font-body); font-size: 17px; line-height: 1.6;
  color: var(--mizu-sumi); max-width: 56ch; margin: 0;
}
[data-design="a"] .rf-interactive__lede a { color: var(--mizu-aizome); }

/* Funnel step container */
[data-design="a"] .rf-funnel { position: relative; }
[data-design="a"] .rf-funnel__step[hidden] { display: none; }
[data-design="a"] .rf-funnel__step {
  animation: a-step-in var(--dur-unfurl) var(--motion-unfurl) forwards;
}
@keyframes a-step-in {
  from { opacity: 0.92; transform: translateY(6px); }
  to   { opacity: 1;   transform: translateY(0); }
}
[data-design="a"] .rf-funnel__step-label {
  font-family: var(--font-body); font-size: 14px; font-weight: 500;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--mizu-asagi); margin: 0 0 var(--sp-shoji);
  display: flex; gap: var(--sp-step); align-items: center;
}
[data-design="a"] .rf-funnel__step-num {
  font-family: var(--font-mono); font-size: 12px;
  color: var(--mizu-mizu);
  border: 1px solid var(--mizu-mizu);
  border-radius: var(--r-tile);
  padding: 2px 6px;
}

/* Chip grid */
[data-design="a"] .rf-funnel__chips {
  display: flex; flex-wrap: wrap; gap: var(--sp-step);
  margin-bottom: var(--sp-shoji);
}
[data-design="a"] .rf-funnel__chip {
  appearance: none; border: 1px solid var(--mizu-aizome);
  background: var(--mizu-shiro); color: var(--mizu-aizome);
  font-family: var(--font-body); font-size: 15px;
  padding: var(--sp-step) var(--sp-shoji); 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),
              transform var(--dur-drop) var(--motion-settle);
}
[data-design="a"] .rf-funnel__chip.is-selected {
  background: var(--mizu-aizome); color: var(--mizu-shiro);
  transform: translateY(-2px);
}
[data-design="a"] .rf-funnel__chip:focus-visible {
  outline: none; box-shadow: 0 0 0 3px var(--mizu-mizu);
}

/* Emergency + outside hints — hidden by JS when needed */
[data-design="a"] .rf-funnel__emergency-hint,
[data-design="a"] .rf-funnel__outside-hint {
  background: var(--mizu-shiro); border: 1px solid var(--mizu-mist);
  border-left: 3px solid var(--mizu-akane);
  padding: var(--sp-tile) var(--sp-shoji);
  margin-top: var(--sp-step);
  font-family: var(--font-body); font-size: 15px; line-height: 1.6;
}
[data-design="a"] .rf-funnel__emergency-hint a,
[data-design="a"] .rf-funnel__outside-hint a { color: var(--mizu-aizome); }

/* Form in step 5 */
[data-design="a"] .rf-funnel__form { display: grid; gap: var(--sp-tile); max-width: 560px; }
[data-design="a"] .rf-field { display: flex; flex-direction: column; gap: 6px; }
[data-design="a"] .rf-field__label {
  font-family: var(--font-body); font-size: 11px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--mizu-asagi);
}
[data-design="a"] .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; width: 100%;
  transition: border-color var(--dur-drop) var(--motion-settle),
              box-shadow var(--dur-drop) var(--motion-settle);
}
[data-design="a"] .rf-field__input--area { min-height: 80px; resize: vertical; }
[data-design="a"] .rf-field__input:focus-visible {
  outline: none; border-bottom-color: var(--mizu-asagi);
  box-shadow: 0 1px 0 0 var(--mizu-asagi);
}
[data-design="a"] .rf-funnel__actions {
  display: flex; gap: var(--sp-tile); margin-top: var(--sp-tile); flex-wrap: wrap;
}

/* Stamp buttons */
[data-design="a"] .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);
  transition: transform var(--dur-drop) var(--motion-settle),
              background var(--dur-drop) var(--motion-settle);
  border: 1px solid var(--mizu-aizome);
}
[data-design="a"] .rf-stamp--primary { background: var(--mizu-aizome); color: var(--mizu-shiro); }
[data-design="a"] .rf-stamp--ghost { background: transparent; color: var(--mizu-sumi); }
[data-design="a"] .rf-stamp:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--mizu-mizu); }
[data-design="a"] .rf-stamp:active { transform: translateY(1px); }

/* Done state */
[data-design="a"] .rf-funnel__done {
  padding: var(--sp-yu) clamp(20px, 4vw, 40px);
  background: var(--mizu-shiro); border: 1px solid var(--mizu-mist);
  text-align: center;
}
[data-design="a"] .rf-funnel__done h3 {
  font-family: var(--font-display); font-size: clamp(26px, 3.4vw, 34px);
  color: var(--mizu-sumi); margin: var(--sp-tile) 0 var(--sp-step);
}
[data-design="a"] .rf-funnel__done p {
  font-family: var(--font-body); font-size: 17px; line-height: 1.6;
  color: var(--mizu-sumi);
}
[data-design="a"] .rf-funnel__done a { color: var(--mizu-aizome); }
[data-design="a"] .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;
  /* starts visible but small — transform-only entrance (NO opacity:0) */
  transform: scale(0.92) rotate(-6deg);
  transition: transform 420ms var(--motion-settle);
}
[data-design="a"] .rf-funnel.is-done .rf-hanko { transform: scale(1) rotate(-6deg); }

/* Progress rail */
[data-design="a"] .rf-funnel__progress {
  height: 2px; background: var(--mizu-mist);
  margin-top: var(--sp-shoji); border-radius: var(--r-tile);
  overflow: hidden;
}
[data-design="a"] .rf-funnel__progress-bar {
  display: block; height: 100%; background: var(--mizu-aizome);
  transform: scaleX(0.2); transform-origin: left;
  transition: transform var(--dur-unfurl) var(--motion-unfurl);
}

/* ── ELEMENT 3 (ambient A): Services tile mosaic ────────────── */
[data-design="a"] .rf-ambient-a {
  padding: var(--sp-yu) clamp(20px, 5vw, 56px);
  background: var(--mizu-shiro);
}
[data-design="a"] .rf-ambient-a__head { max-width: 1280px; margin: 0 auto var(--sp-tatami); }
[data-design="a"] .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="a"] .rf-ambient-a__head h2,
[data-design="a"] .rf-ambient-a > header > h2 {
  font-family: var(--font-display); font-size: clamp(30px, 4.5vw, 44px);
  margin: 0; color: var(--mizu-sumi); line-height: 1.15;
}
[data-design="a"] .rf-tilegrid {
  list-style: none; margin: 0 auto; padding: 0; max-width: 1280px;
  display: grid; gap: 2px;
  grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr));
  background: var(--mizu-aizome);
  border: 1px solid var(--mizu-aizome);
}
[data-design="a"] .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="a"] .rf-tile::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--mizu-asagi) 0%, var(--mizu-aizome) 60%);
  opacity: 0;
  animation: a-tile-glaze var(--dur-ambient-mid) var(--motion-ripple) infinite;
  z-index: 0;
}
[data-design="a"] .rf-tile:nth-child(7n+1)::before { animation-delay: 0s; }
[data-design="a"] .rf-tile:nth-child(7n+2)::before { animation-delay: 1.7s; }
[data-design="a"] .rf-tile:nth-child(7n+3)::before { animation-delay: 3.4s; }
[data-design="a"] .rf-tile:nth-child(7n+4)::before { animation-delay: 5.1s; }
[data-design="a"] .rf-tile:nth-child(7n+5)::before { animation-delay: 6.8s; }
[data-design="a"] .rf-tile:nth-child(7n+6)::before { animation-delay: 8.5s; }
[data-design="a"] .rf-tile:nth-child(7n+7)::before { animation-delay: 10.2s; }
@keyframes a-tile-glaze {
  0%, 100% { opacity: 0; }
  40%      { opacity: 0.45; }
  60%      { opacity: 0.45; }
}
[data-design="a"] .rf-tile > * { position: relative; z-index: 1; }
[data-design="a"] .rf-tile__num {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.08em;
  color: var(--mizu-mizu);
}
[data-design="a"] .rf-tile__name {
  font-family: var(--font-display); font-size: clamp(20px, 2.4vw, 26px);
  line-height: 1.2;
}
[data-design="a"] .rf-tile__range {
  font-family: var(--font-body); font-size: 13px;
  color: var(--mizu-mizu); margin-top: auto;
}
[data-design="a"] .rf-tile__range a { color: var(--mizu-mizu); text-decoration: none; }
[data-design="a"] .rf-ambient-a.is-paused .rf-tile::before { animation-play-state: paused; }

/* ── ELEMENT 4 (ambient B): About / kanji section ───────────── */
[data-design="a"] .rf-ambient-b {
  padding: var(--sp-yu) clamp(20px, 5vw, 56px);
  background: var(--mizu-cream);
}
[data-design="a"] .rf-ambient-b__grid {
  display: grid; gap: var(--sp-tatami);
  grid-template-columns: minmax(220px, 1fr) minmax(0, 1.6fr);
  align-items: center; max-width: 1180px; margin: 0 auto;
}
[data-design="a"] .rf-kanji {
  margin: 0; display: flex; flex-direction: column; gap: var(--sp-tile);
  align-items: center;
}
[data-design="a"] .rf-kanji svg {
  width: clamp(140px, 20vw, 240px); height: auto; max-width: 100%;
}
[data-design="a"] .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="a"] .rf-ambient-b.is-drawn .rf-kanji__stroke {
  animation: a-ink-draw 1.6s var(--motion-inkdraw) forwards,
             a-ink-breath 18s var(--motion-settle) 1.6s infinite;
}
[data-design="a"] .rf-ambient-b.is-drawn .rf-kanji__stroke:nth-child(2) { animation-delay: 220ms, 1.82s; }
[data-design="a"] .rf-ambient-b.is-drawn .rf-kanji__stroke:nth-child(3) { animation-delay: 440ms, 2.04s; }
[data-design="a"] .rf-ambient-b.is-drawn .rf-kanji__stroke:nth-child(4) { animation-delay: 660ms, 2.26s; }
[data-design="a"] .rf-ambient-b.is-drawn .rf-kanji__stroke:nth-child(5) { animation-delay: 880ms, 2.48s; }
@keyframes a-ink-draw {
  to { stroke-dashoffset: 0; }
}
@keyframes a-ink-breath {
  0%, 100% { opacity: 0.78; }
  50%      { opacity: 0.92; }
}
[data-design="a"] .rf-kanji__caption {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--mizu-asagi);
}
[data-design="a"] .rf-ambient-b__body h2 {
  font-family: var(--font-display); font-size: clamp(28px, 4vw, 40px);
  margin: 0 0 var(--sp-shoji); color: var(--mizu-sumi); line-height: 1.2;
}
[data-design="a"] .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="a"] .rf-ambient-b__copy p { margin: 0 0 var(--sp-tile); }
[data-design="a"] .rf-ambient-b.is-paused .rf-kanji__stroke { animation-play-state: paused; }

/* ── Service Area ────────────────────────────────────────────── */
[data-design="a"] .mf-area {
  padding: var(--sp-yu) clamp(20px, 5vw, 56px);
  background: var(--mizu-shiro);
}
[data-design="a"] .mf-area__wrap { max-width: 1280px; margin: 0 auto; }
[data-design="a"] .mf-area__head { max-width: 720px; margin-bottom: var(--sp-tatami); }
[data-design="a"] .mf-area__head h2 {
  font-family: var(--font-display); font-size: clamp(30px, 4.5vw, 44px);
  margin: 0 0 var(--sp-tile); color: var(--mizu-sumi); line-height: 1.15;
}
[data-design="a"] .mf-area__desc {
  font-family: var(--font-body); font-size: 17px; line-height: 1.6;
  color: var(--mizu-sumi); margin: 0 0 var(--sp-shoji);
}
[data-design="a"] .mf-area__list {
  list-style: none; padding: 0; margin: 0 0 var(--sp-tatami);
  display: flex; flex-wrap: wrap; gap: var(--sp-shoji);
}
[data-design="a"] .mf-area__list li {
  font-family: var(--font-body); font-size: 17px; line-height: 1.5;
  color: var(--mizu-aizome); font-weight: 500;
  padding: var(--sp-step) var(--sp-tile);
  border: 1px solid var(--mizu-mist); border-radius: var(--r-tile);
}

/* ── Footer ──────────────────────────────────────────────────── */
[data-design="a"] .mf-footer {
  background: var(--mizu-aizome);
  padding: var(--sp-tatami) clamp(20px, 5vw, 56px);
  border-top: 3px solid var(--mizu-hinoki);
}
[data-design="a"] .mf-footer__inner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(200px, 100%), 1fr));
  gap: var(--sp-tatami);
  max-width: 1280px; margin: 0 auto;
}
[data-design="a"] .mf-footer__firm {
  font-family: var(--font-display); font-size: 22px;
  color: var(--mizu-shiro); margin: 0 0 var(--sp-step);
}
[data-design="a"] .mf-footer__addr,
[data-design="a"] .mf-footer__lic,
[data-design="a"] .mf-footer__trust,
[data-design="a"] .mf-footer__area,
[data-design="a"] .mf-footer__copy {
  font-family: var(--font-body); font-size: 14px; line-height: 1.6;
  color: rgba(244,239,230,0.7); margin: 0 0 var(--sp-step);
}
[data-design="a"] .mf-footer__phone {
  display: block; font-family: var(--font-body); font-size: 18px;
  color: var(--mizu-hinoki); text-decoration: none; margin-top: var(--sp-tile);
  min-height: 44px; display: flex; align-items: center;
}

/* ── TRIAD-2: Scroll-driven parallax ────────────────────────── */
/* Hero backdrop moves slower than scroll — genuine parallax, not fade-in */
[data-design="a"] .mf-hero__backdrop {
  will-change: transform;
}

/* ── Mobile clips — scoped to .dq-design ───────────────────── */
[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; }

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 768px) {
  [data-design="a"] .rf-ambient-b__grid { grid-template-columns: 1fr; }
  [data-design="a"] .rf-funnel__chips { flex-direction: column; }
  [data-design="a"] .rf-funnel__chip { width: 100%; }
}
@media (max-width: 560px) {
  [data-design="a"] .rf-ripple__ring { right: clamp(56px, 18vw, 96px); }
  [data-design="a"] .rf-ambient-a { padding: var(--sp-tatami) var(--sp-shoji); }
  [data-design="a"] .rf-ambient-b { padding: var(--sp-tatami) var(--sp-shoji); }
}
@media (max-width: 380px) {
  [data-design="a"] .rf-header { padding: var(--sp-tile) var(--sp-shoji); }
  [data-design="a"] .rf-logo__mark { font-size: 17px; }
  [data-design="a"] .mf-hero__content { padding: var(--sp-tatami) var(--sp-shoji); }
}

/* Hover guards — ALL hover/focus transforms gated by pointer:fine + hover */
@media (hover: hover) and (pointer: fine) {
  [data-design="a"] .rf-cta:hover { background: var(--mizu-asagi); color: var(--mizu-shiro); }
  [data-design="a"] .rf-cta--mid:hover { background: var(--mizu-asagi); }
  [data-design="a"] .rf-cta:hover .rf-cta__drop { animation-duration: 1.6s; }
  [data-design="a"] .rf-funnel__chip:hover { background: var(--mizu-cream); }
  [data-design="a"] .rf-stamp--primary:hover { background: var(--mizu-asagi); }
  [data-design="a"] .rf-noren__list a:hover { color: var(--mizu-aizome); }
}

/* ── Reduced motion ─────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  [data-design="a"] .rf-ripple__ring { animation: none; opacity: 0.25; transform: translate(50%, -50%) scale(6); }
  [data-design="a"] .rf-noren__panel,
  [data-design="a"] .rf-noren__rule,
  [data-design="a"] .rf-noren__list { transition-duration: 0ms; }
  [data-design="a"] .rf-cta__drop,
  [data-design="a"] .rf-cta__ripple { animation: none; opacity: 1; transform: none; }
  [data-design="a"] .mf-hero__glow { animation: none; opacity: 0.8; }
  [data-design="a"] .mf-pipe--h,
  [data-design="a"] .mf-pipe--v,
  [data-design="a"] .mf-pipe--v2 { animation: none; transform: none; }
  [data-design="a"] .mf-pipe__joint,
  [data-design="a"] .mf-pipe__tick { animation: none; opacity: 1; }
  [data-design="a"] .mf-drop { animation: none; opacity: 0.5; }
  [data-design="a"] .mizu-pointer__pipe { animation: none; opacity: 0.7; transform: scaleY(1); }
  [data-design="a"] .mizu-pointer__drop { animation: none; opacity: 0.7; transform: translateY(0) scale(1); }
  [data-design="a"] .rf-tile::before { animation: none; opacity: 0.2; }
  [data-design="a"] .rf-ambient-b .rf-kanji__stroke { animation: none; stroke-dashoffset: 0; opacity: 0.85; }
  [data-design="a"] .rf-funnel__step { animation: none; }
}

/* 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; }