/* ============================================================
   Design A — Mizu (Sento Water Room), slotted for
   Mountain Pumps & Plumbing. Scope: [data-design="a"].
   Keyframes prefixed a-* to avoid collision.
   ============================================================ */

[data-design="a"] {
  /* ---- Color tokens (trade-rooted: aizome water + hinoki warmth) ---- */
  --a-shiro:  #F4EFE6;  /* surface — warm rice-paper */
  --a-cream:  #EBE2D0;  /* surface-2 */
  --a-sumi:   #1A1612;  /* ink */
  --a-aizome: #1B3A5C;  /* primary indigo */
  --a-asagi:  #3E6F94;  /* secondary indigo */
  --a-mizu:   #A8C8DC;  /* water-tint accent */
  --a-hinoki: #C9A876;  /* warm cedar */
  --a-akane:  #9C3A2A;  /* critical / hanko */
  --a-matcha: #5C7A4A;  /* success */
  --a-mist:   rgba(27,58,92,0.08);

  /* exposed primary for the design-slot contract */
  --design-a-primary: var(--a-aizome);

  --font-display: 'Cormorant Garamond', 'Hiragino Mincho ProN', 'Yu Mincho', 'Times New Roman', serif;
  --font-body:    'Inter', -apple-system, system-ui, 'Hiragino Kaku Gothic ProN', sans-serif;
  --font-mono:    ui-monospace, 'JetBrains Mono', 'Hiragino Kaku Gothic ProN', 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-tile: 2px; --r-stone: 6px; --r-drop: 999px;

  background: var(--a-shiro);
  color: var(--a-sumi);
  font-family: var(--font-body);
}

[data-design="a"] .rf-eyebrow {
  font-family: var(--font-body); font-size: 12px; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--a-asagi); margin: 0 0 var(--sp-tile);
}

/* ===== Element 1 — Header ===== */
[data-design="a"] .rf-header {
  position: sticky; top: 0; z-index: 30; background: var(--a-shiro);
  padding: var(--sp-shoji) clamp(20px, 5vw, 56px); position: relative;
}
[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(20px, 2.4vw, 28px);
  letter-spacing: -0.01em; color: var(--a-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; align-items: center; justify-content: center;
}
[data-design="a"] .rf-hamburger__rule {
  display: block; width: 28px; height: 1px; background: var(--a-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(--a-aizome); opacity: 0.6;
}
[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(--a-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); }
}
[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(--a-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(--a-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; 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); }
[data-design="a"] .rf-noren__list li { margin: var(--sp-step) 0; }
[data-design="a"] .rf-noren__list a {
  color: var(--a-sumi); text-decoration: none; display: inline-block;
  min-height: 44px; padding: 4px 8px;
}
[data-design="a"] .rf-noren__list a:hover { color: var(--a-aizome); }
[data-design="a"] .rf-noren__phone {
  font-family: var(--font-body); font-size: 17px; letter-spacing: 0.06em;
  color: var(--a-aizome) !important;
}
[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(--a-sumi); cursor: pointer; pointer-events: auto;
  min-height: 44px; padding: 0 8px;
  opacity: 0; transition: opacity 240ms var(--motion-settle) 420ms;
}
[data-design="a"] .rf-noren.is-open .rf-noren__close { opacity: 1; }

/* ===== Hero (themed-movement: ONE ambient copper-glow layer) ===== */
[data-design="a"] .rf-hero {
  position: relative; overflow: hidden;
  padding: clamp(56px, 9vw, 120px) clamp(20px, 5vw, 56px) clamp(40px, 6vw, 72px);
  background: var(--a-shiro);
}
[data-design="a"] .rf-hero__substrate { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
[data-design="a"] .rf-hero__glow {
  position: absolute; top: 8%; right: -6%;
  width: clamp(280px, 46vw, 620px); height: clamp(280px, 46vw, 620px);
  border-radius: 50%;
  background: radial-gradient(circle at 50% 50%,
    rgba(201,168,118,0.34) 0%, rgba(168,200,220,0.22) 38%, rgba(27,58,92,0) 70%);
  opacity: 0.9;
  animation: a-hero-glow 6s var(--motion-settle) infinite alternate;
}
@keyframes a-hero-glow {
  0%   { transform: scale(0.92) translateY(0);   opacity: 0.62; }
  100% { transform: scale(1.08) translateY(-14px); opacity: 0.95; }
}
[data-design="a"] .rf-hero__inner {
  position: relative; z-index: 1; max-width: 1180px; margin: 0 auto;
  display: grid; gap: var(--sp-tatami);
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); align-items: center;
}
@media (max-width: 768px) {
  [data-design="a"] .rf-hero__inner { grid-template-columns: 1fr; }
}
[data-design="a"] .rf-hero__text { opacity: 1; }
[data-design="a"] .rf-hero__eyebrow { color: var(--a-asagi); }
[data-design="a"] .rf-hero__title {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(34px, 6vw, 64px); line-height: 1.08;
  color: var(--a-sumi); margin: 0 0 var(--sp-shoji); max-width: 16ch;
}
[data-design="a"] .rf-hero__subtitle {
  font-family: var(--font-body); font-size: clamp(16px, 2vw, 19px);
  line-height: 1.6; color: var(--a-sumi); margin: 0 0 var(--sp-tile); max-width: 52ch;
}
[data-design="a"] .rf-hero__proof {
  font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.04em;
  color: var(--a-asagi); margin: 0 0 var(--sp-shoji); max-width: 56ch;
}
[data-design="a"] .rf-hero__cta { margin-top: var(--sp-step); }
[data-design="a"] .rf-hero__plate {
  display: flex; flex-direction: column; gap: var(--sp-tile);
  background: var(--a-cream); border: 1px solid var(--a-mist);
  border-radius: var(--r-tile); padding: var(--sp-shoji);
  box-shadow: 0 1px 0 var(--a-mist), 0 18px 32px -16px rgba(27,58,92,0.18);
}
[data-design="a"] .rf-plate__row { display: flex; flex-direction: column; gap: 2px; }
[data-design="a"] .rf-plate__k {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--a-asagi);
}
[data-design="a"] .rf-plate__v { font-family: var(--font-body); font-size: 15px; color: var(--a-sumi); }

/* ===== Element 2 — phone CTA ===== */
[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(--a-aizome); color: var(--a-shiro);
  font-family: var(--font-body); font-size: 16px; letter-spacing: 0.06em;
  text-transform: uppercase; text-decoration: none;
  border-radius: var(--r-tile); overflow: hidden; isolation: isolate;
  transition: transform var(--dur-drop) var(--motion-settle), 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(--a-mizu);
  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(--a-mizu);
  border-radius: 50%; opacity: 0; transform: translate(50%, -50%) scale(1);
  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%, 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); }
}
[data-design="a"] .rf-cta:hover { background: var(--a-asagi); }
[data-design="a"] .rf-cta:hover .rf-cta__drop { animation-duration: 1.6s; }
[data-design="a"] .rf-cta:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--a-mizu); }
[data-design="a"] .rf-cta:active { transform: translateY(1px); }

/* ===== Element 6 — pointer ===== */
[data-design="a"] .a-pointer {
  display: flex; flex-direction: column; align-items: center;
  padding: clamp(28px, 6vw, 56px) 16px clamp(36px, 7vw, 64px);
  background: var(--a-shiro);
}
[data-design="a"] .a-pointer__hit {
  position: relative; display: flex; flex-direction: column; align-items: center;
  gap: var(--sp-tile); text-decoration: none; color: var(--a-aizome);
}
[data-design="a"] .a-pointer__pipe {
  position: relative; display: block; width: 2px; height: 72px;
  background: linear-gradient(to bottom, transparent 0%, currentColor 100%);
  transform-origin: top center; opacity: 0.7;
  animation: a-pointer-fill 5s ease-in-out infinite;
}
[data-design="a"] .a-pointer__drop {
  position: absolute; left: 50%; top: 0; width: 8px; height: 8px; margin-left: -4px;
  background: currentColor; border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
  opacity: 0; animation: a-pointer-drip 5s ease-in infinite;
}
[data-design="a"] .a-pointer__label {
  font-family: var(--font-body); font-size: 13px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--a-asagi);
}
@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(0)   scale(0.4); opacity: 0; }
  70%     { transform: translateY(0)   scale(1);   opacity: 1; }
  92%     { transform: translateY(64px) scale(1);  opacity: 1; }
  100%    { transform: translateY(64px) scale(0.2);opacity: 0; }
}

/* ===== Element 3 — Services tile-mosaic ===== */
[data-design="a"] .rf-ambient-a { padding: var(--sp-ma) clamp(20px, 5vw, 56px); background: var(--a-shiro); }
[data-design="a"] .rf-ambient-a__head { max-width: 720px; margin-bottom: var(--sp-tatami); }
[data-design="a"] .rf-ambient-a__head h2 {
  font-family: var(--font-display); font-size: clamp(28px, 4.5vw, 44px);
  margin: 0; color: var(--a-sumi); line-height: 1.15;
}
[data-design="a"] .rf-tilegrid {
  list-style: none; margin: 0; padding: 0; display: grid; gap: 2px;
  grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr));
  background: var(--a-aizome); border: 1px solid var(--a-aizome);
}
[data-design="a"] .rf-tile {
  position: relative; padding: var(--sp-tatami) var(--sp-shoji);
  background: var(--a-aizome); color: var(--a-shiro);
  display: flex; flex-direction: column; gap: var(--sp-tile);
  isolation: isolate; overflow: hidden; min-height: 132px;
}
[data-design="a"] .rf-tile::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--a-asagi) 0%, var(--a-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(--a-mizu); }
[data-design="a"] .rf-tile__name { font-family: var(--font-display); font-size: clamp(22px, 2.6vw, 28px); line-height: 1.2; }
[data-design="a"] .rf-tile__range { font-family: var(--font-body); font-size: 13px; color: var(--a-mizu); margin-top: auto; }
[data-design="a"] .rf-ambient-a.is-paused .rf-tile::before { animation-play-state: paused; }
[data-design="a"] .rf-inline-cta {
  font-family: var(--font-body); font-size: 16px; line-height: 1.6;
  color: var(--a-sumi); margin: var(--sp-tatami) 0 0;
}
[data-design="a"] .rf-inline-cta a { color: var(--a-aizome); font-weight: 600; }

/* ===== Element 4 — About / Service Area (kanji) ===== */
[data-design="a"] .rf-ambient-b { padding: var(--sp-ma) clamp(20px, 5vw, 56px); background: var(--a-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;
}
@media (max-width: 768px) { [data-design="a"] .rf-ambient-b__grid { grid-template-columns: 1fr; } }
[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(160px, 22vw, 260px); height: auto; max-width: 100%; }
[data-design="a"] .rf-kanji__stroke {
  fill: none; stroke: var(--a-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(--a-asagi);
}
[data-design="a"] .rf-ambient-b__body h2 {
  font-family: var(--font-display); font-size: clamp(26px, 4vw, 40px);
  margin: 0 0 var(--sp-shoji); color: var(--a-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(--a-sumi); max-width: 62ch;
}
[data-design="a"] .rf-ambient-b__copy p { margin: 0 0 var(--sp-tile); }
[data-design="a"] .rf-area { margin-top: var(--sp-tatami); }
[data-design="a"] .rf-area__list {
  list-style: none; margin: 0 0 var(--sp-tile); padding: 0;
  display: flex; flex-wrap: wrap; gap: var(--sp-tile);
}
[data-design="a"] .rf-area__list li {
  font-family: var(--font-body); font-size: 15px; color: var(--a-sumi);
  background: var(--a-shiro); border: 1px solid var(--a-mist);
  border-radius: var(--r-tile); padding: 8px 16px;
}
[data-design="a"] .rf-ambient-b.is-paused .rf-kanji__stroke { animation-play-state: paused; }

/* ===== Element 5 — Funnel ===== */
[data-design="a"] .rf-funnel { padding: var(--sp-ma) clamp(20px, 5vw, 56px); background: var(--a-shiro); }
[data-design="a"] .rf-funnel__head { max-width: 720px; margin-bottom: var(--sp-tatami); }
[data-design="a"] .rf-funnel__head h2 {
  font-family: var(--font-display); font-size: clamp(28px, 4.5vw, 44px);
  margin: 0 0 var(--sp-tile); color: var(--a-sumi); line-height: 1.15;
}
[data-design="a"] .rf-funnel__lede {
  font-family: var(--font-body); font-size: 17px; line-height: 1.6;
  color: var(--a-sumi); max-width: 56ch; margin: 0;
}
[data-design="a"] .rf-funnel__lede a { color: var(--a-aizome); font-weight: 600; }
[data-design="a"] .rf-flow {
  background: var(--a-cream); border: 1px solid var(--a-mist);
  border-radius: var(--r-tile); padding: var(--sp-tatami) clamp(20px, 4vw, 40px);
  max-width: 880px;
}
[data-design="a"] .rf-flow__progress {
  list-style: none; display: flex; gap: var(--sp-step); padding: 0;
  margin: 0 0 var(--sp-tatami);
}
[data-design="a"] .rf-flow__progress li {
  flex: 1; height: 3px; background: var(--a-mist); border-radius: var(--r-drop);
  transition: background var(--dur-drop) var(--motion-settle);
}
[data-design="a"] .rf-flow__progress li.is-active { background: var(--a-aizome); }
[data-design="a"] .rf-step { border: 0; margin: 0; padding: 0; }
[data-design="a"] .rf-step:not(.is-current) { display: none; }
[data-design="a"] .rf-step__q {
  font-family: var(--font-display); font-size: clamp(22px, 3.2vw, 30px);
  color: var(--a-sumi); margin: 0 0 var(--sp-shoji); padding: 0;
}
[data-design="a"] .rf-step__grid {
  display: grid; gap: var(--sp-step);
  grid-template-columns: repeat(auto-fit, minmax(min(160px, 100%), 1fr));
}
[data-design="a"] .rf-step__grid--three { grid-template-columns: repeat(auto-fit, minmax(min(140px, 100%), 1fr)); }
[data-design="a"] .rf-opt {
  appearance: none; cursor: pointer; min-height: 56px;
  background: var(--a-shiro); color: var(--a-sumi);
  border: 1px solid var(--a-aizome); border-radius: var(--r-tile);
  font-family: var(--font-body); font-size: 16px; padding: 14px 16px; text-align: left;
  transition: transform var(--dur-drop) var(--motion-settle), background var(--dur-drop) var(--motion-settle), color var(--dur-drop) var(--motion-settle);
}
[data-design="a"] .rf-opt:hover { background: var(--a-mist); }
[data-design="a"] .rf-opt:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--a-mizu); }
[data-design="a"] .rf-opt.is-active { background: var(--a-aizome); color: var(--a-shiro); transform: translateY(-2px); }
[data-design="a"] .rf-step__hint {
  font-family: var(--font-body); font-size: 15px; line-height: 1.6;
  color: var(--a-akane); margin: var(--sp-shoji) 0 0;
}
[data-design="a"] .rf-step__hint a { color: var(--a-aizome); font-weight: 600; }
[data-design="a"] .rf-field { display: flex; flex-direction: column; gap: 6px; margin-top: var(--sp-shoji); }
[data-design="a"] .rf-field__label {
  font-family: var(--font-body); font-size: 11px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--a-asagi);
}
[data-design="a"] .rf-field__input {
  appearance: none; background: var(--a-shiro); color: var(--a-sumi);
  border: 0; border-bottom: 1px solid var(--a-aizome);
  padding: 12px 10px; font-family: var(--font-body); font-size: 16px;
  border-radius: 0; min-height: 44px;
  transition: border-color var(--dur-drop) var(--motion-settle);
}
[data-design="a"] .rf-field__input--area { min-height: 72px; resize: vertical; }
[data-design="a"] .rf-field__input:focus-visible {
  outline: none; border-bottom-color: var(--a-asagi); box-shadow: 0 1px 0 0 var(--a-asagi);
}
[data-design="a"] .rf-flow__nav { margin-top: var(--sp-tatami); display: flex; flex-wrap: wrap; gap: var(--sp-tile); }
[data-design="a"] .rf-stamp {
  appearance: none; cursor: pointer; padding: 14px 22px; min-height: 44px;
  font-family: var(--font-body); font-size: 14px; letter-spacing: 0.1em;
  text-transform: uppercase; border-radius: var(--r-tile);
  border: 1px solid var(--a-aizome);
  transition: transform var(--dur-drop) var(--motion-settle), background var(--dur-drop) var(--motion-settle);
}
[data-design="a"] .rf-stamp--primary { background: var(--a-aizome); color: var(--a-shiro); margin-top: var(--sp-shoji); }
[data-design="a"] .rf-stamp--primary:hover { background: var(--a-asagi); }
[data-design="a"] .rf-stamp--ghost { background: transparent; color: var(--a-sumi); }
[data-design="a"] .rf-stamp:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--a-mizu); }
[data-design="a"] .rf-stamp:active { transform: translateY(1px); }
[data-design="a"] .rf-flow__done { text-align: center; padding: var(--sp-tatami) 0 0; }
[data-design="a"] .rf-flow__done[hidden] { display: none; }
[data-design="a"] .rf-flow__done h3 {
  font-family: var(--font-display); font-size: clamp(24px, 3.4vw, 32px);
  color: var(--a-sumi); margin: var(--sp-tile) 0 var(--sp-step);
}
[data-design="a"] .rf-flow__done p { font-family: var(--font-body); font-size: 16px; line-height: 1.6; color: var(--a-sumi); }
[data-design="a"] .rf-flow__done p a { color: var(--a-aizome); font-weight: 600; }
[data-design="a"] .rf-hanko {
  display: inline-flex; align-items: center; justify-content: center;
  width: 64px; height: 64px; border-radius: 50%;
  background: var(--a-akane); color: var(--a-shiro);
  font-family: var(--font-display); font-size: 34px;
  transform: scale(0.6) rotate(-6deg); opacity: 0;
  transition: transform 420ms var(--motion-settle), opacity 420ms var(--motion-settle);
}
[data-design="a"] .rf-flow.is-done .rf-hanko { transform: scale(1) rotate(-6deg); opacity: 1; }

/* ===== Footer ===== */
[data-design="a"] .rf-footer {
  background: var(--a-aizome); color: var(--a-shiro);
  padding: var(--sp-tatami) clamp(20px, 5vw, 56px);
  border-top: 1px solid var(--a-hinoki);
}
[data-design="a"] .rf-footer__grid {
  display: grid; gap: var(--sp-tatami); max-width: 1180px; margin: 0 auto;
  grid-template-columns: repeat(auto-fit, minmax(min(240px, 100%), 1fr));
}
[data-design="a"] .rf-footer__h {
  font-family: var(--font-body); font-size: 11px; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--a-mizu); margin: 0 0 var(--sp-tile);
}
[data-design="a"] .rf-footer__col p { margin: 0 0 var(--sp-step); font-size: 15px; line-height: 1.6; }
[data-design="a"] .rf-footer__col a { color: var(--a-shiro); }
[data-design="a"] .rf-footer__phone { font-family: var(--font-display); font-size: 26px; }
[data-design="a"] .rf-footer__legal {
  max-width: 1180px; margin: var(--sp-tatami) auto 0;
  font-size: 13px; color: var(--a-mizu);
}

/* ===== 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-hero__glow { animation: none; opacity: 0.7; }
  [data-design="a"] .rf-cta__drop, [data-design="a"] .rf-cta__ripple { animation: none; opacity: 1; transform: none; }
  [data-design="a"] .a-pointer__pipe, [data-design="a"] .a-pointer__drop { animation: none; opacity: 0.6; }
  [data-design="a"] .rf-tile::before { animation: none; opacity: 0.2; }
  [data-design="a"] .rf-kanji__stroke { animation: none; stroke-dashoffset: 0; opacity: 0.85; }
  [data-design="a"] .rf-opt, [data-design="a"] .rf-stamp, [data-design="a"] .rf-hanko { transition-duration: 0ms; }
}

@media (max-width: 560px) {
  [data-design="a"] .rf-ripple__ring { right: clamp(56px, 18vw, 96px); }
  [data-design="a"] .rf-ambient-a, [data-design="a"] .rf-ambient-b, [data-design="a"] .rf-funnel { 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: 18px; }
}

/* ===== Mobile-safety floor (MUST stay at bottom) ===== */
[data-design="a"].dq-design,[data-design="a"] .dq-design{max-width:100%;overflow-x:clip;}
[data-design="a"] *{min-width:0;}
[data-design="a"] img,[data-design="a"] svg:not([data-keep-size]){max-width:100%;height:auto;}

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