/* ===========================================================
   Brother's Tile — San Antonio — DESIGN A (mizu-derived)
   Scoped entirely under [data-design="a"]
   =========================================================== */

[data-design="a"] {
  --design-a-shiro:   #F4EFE6;
  --design-a-cream:   #EBE2D0;
  --design-a-sumi:    #1A1612;
  --design-a-primary: #1B3A5C;
  --design-a-asagi:   #3E6F94;
  --design-a-mizu:    #A8C8DC;
  --design-a-hinoki:  #C9A876;
  --design-a-akane:   #9C3A2A;
  --design-a-matcha:  #5C7A4A;
  --design-a-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: 80px; --sp-yu: 120px;

  --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: 200ms; --dur-ripple: 700ms; --dur-unfurl: 520ms;
  --dur-ambient-long: 20s; --dur-ambient-mid: 12s;

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

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

[data-design="a"].dq-design * { box-sizing: border-box; }
[data-design="a"].dq-design h1, [data-design="a"].dq-design h2, [data-design="a"].dq-design h3 { margin: 0; }
[data-design="a"].dq-design p { margin: 0; }

/* ---------- shared container ---------- */
[data-design="a"] .rf-container,
[data-design="a"] .rf-ambient-a__head,
[data-design="a"] .rf-interactive__head,
[data-design="a"] .rf-ambient-b__grid {
  max-width: 1320px;
  margin-inline: auto;
}

/* ================= HEADER (Element 1) ================= */
[data-design="a"] .rf-header {
  position: sticky; top: 0; z-index: 30;
  background: var(--design-a-shiro);
  padding: var(--sp-shoji) clamp(20px, 5vw, 56px);
  isolation: isolate;
}
[data-design="a"] .rf-header__bar {
  display: flex; align-items: center; justify-content: space-between;
  position: relative; z-index: 2;
  max-width: 1320px; margin-inline: auto;
}
[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, 26px);
  letter-spacing: -0.01em;
  color: var(--design-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: flex-end; justify-content: center;
}
[data-design="a"] .rf-hamburger__rule {
  display: block; width: 28px; height: 1px; background: var(--design-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(--design-a-primary); opacity: 0.6;
}

/* header ambient ripple — grout-line register (H-3: >=18s cycle) */
[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(--design-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: 7s; }
[data-design="a"] .rf-ripple__ring--c { animation-delay: 14s; }
@keyframes a-ripple {
  0%   { opacity: 0;   transform: translate(50%, -50%) scale(1); }
  6%   { opacity: 0.5; }
  60%  { opacity: 0;   transform: translate(50%, -50%) scale(14); }
  100% { opacity: 0;   transform: translate(50%, -50%) scale(14); }
}

/* drawer (noren) — nav + phone + funnel CTA live here only */
[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(--design-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: 28%; left: 0; right: 0; height: 1px;
  background: var(--design-a-primary); transform: scaleX(0); transform-origin: left;
  transition: transform 680ms 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(30px, 6vw, 52px);
  text-align: center; pointer-events: auto;
  opacity: 0; transform: translateY(8px);
  transition: opacity 340ms var(--motion-settle) 300ms, transform 340ms var(--motion-settle) 300ms;
}
[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(--design-a-sumi); text-decoration: none; }
[data-design="a"] .rf-noren__list a:hover { color: var(--design-a-primary); }

[data-design="a"] .rf-noren__drawer-extra {
  position: relative; z-index: 1; grid-row: 3; align-self: start; justify-self: center;
  display: flex; flex-direction: column; align-items: center; gap: var(--sp-tile);
  margin-top: var(--sp-tatami); pointer-events: auto;
  opacity: 0; transform: translateY(8px);
  transition: opacity 340ms var(--motion-settle) 380ms, transform 340ms var(--motion-settle) 380ms;
}
[data-design="a"] .rf-noren.is-open .rf-noren__drawer-extra { opacity: 1; transform: translateY(0); }
[data-design="a"] .rf-noren__phone,
[data-design="a"] .rf-noren__funnel {
  font-family: var(--font-body); font-size: 15px; letter-spacing: 0.04em;
  text-decoration: none; padding: 10px 18px; min-height: 44px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--r-tile);
}
[data-design="a"] .rf-noren__phone { color: var(--design-a-sumi); border: 1px solid var(--design-a-primary); }
[data-design="a"] .rf-noren__funnel { background: var(--design-a-primary); color: var(--design-a-shiro); }

[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(--design-a-sumi); cursor: pointer; pointer-events: auto;
  opacity: 0; transition: opacity 220ms var(--motion-settle) 400ms;
  min-height: 44px; min-width: 44px;
}
[data-design="a"] .rf-noren.is-open .rf-noren__close { opacity: 1; }

/* ================= HERO (HERO-1/2/3, TAC scope) ================= */
[data-design="a"] .rf-hero {
  position: relative;
  isolation: isolate;
  min-height: 78vh;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
  background: var(--design-a-shiro);
  padding: clamp(48px, 10vw, 96px) clamp(20px, 5vw, 56px);
}
[data-design="a"] .rf-hero__substrate {
  position: absolute; inset: 0; z-index: 0;
  display: flex; align-items: center; justify-content: center;
  opacity: 0.9;
}
[data-design="a"] .rf-hero__grid {
  width: min(90vw, 640px); height: auto; max-height: 70vh;
}
[data-design="a"] .rf-hero__tile rect {
  fill: var(--design-a-mist);
  stroke: var(--design-a-primary);
  stroke-width: 1;
  transform-box: fill-box;
  transform-origin: center;
  transform: scale(0.94);
  opacity: 0;
  animation: a-tile-set 900ms var(--motion-settle) forwards;
}
[data-design="a"] .rf-hero__tile--1 rect { animation-delay: 0ms; }
[data-design="a"] .rf-hero__tile--2 rect { animation-delay: 120ms; }
[data-design="a"] .rf-hero__tile--3 rect { animation-delay: 240ms; }
[data-design="a"] .rf-hero__tile--4 rect { animation-delay: 160ms; }
[data-design="a"] .rf-hero__tile--5 rect { animation-delay: 280ms; }
[data-design="a"] .rf-hero__tile--6 rect { animation-delay: 400ms; }
[data-design="a"] .rf-hero__tile--7 rect { animation-delay: 360ms; }
@keyframes a-tile-set {
  0%   { opacity: 0; transform: scale(0.94); }
  70%  { opacity: 0.55; }
  100% { opacity: 0.4; transform: scale(1); }
}
/* sustained ambient breathe on the tile fills — perceptible, never static */
[data-design="a"] .rf-hero__tile rect {
  animation: a-tile-set 900ms var(--motion-settle) forwards,
             a-tile-breathe 9s var(--motion-ripple) 1.1s infinite;
}
[data-design="a"] .rf-hero__tile--2 rect,
[data-design="a"] .rf-hero__tile--5 rect { animation-delay: 120ms, 3.4s; }
[data-design="a"] .rf-hero__tile--3 rect,
[data-design="a"] .rf-hero__tile--6 rect { animation-delay: 240ms, 5.7s; }
[data-design="a"] .rf-hero__tile--7 rect { animation-delay: 360ms, 7.9s; }
@keyframes a-tile-breathe {
  0%, 100% { opacity: 0.4; }
  50%      { opacity: 0.62; }
}
[data-design="a"] .rf-hero__groutline {
  fill: none; stroke: var(--design-a-primary); stroke-width: 2;
  opacity: 0.5;
  stroke-dasharray: 420; stroke-dashoffset: 420;
  animation: a-grout-draw 1.4s var(--motion-inkdraw) forwards;
}
[data-design="a"] .rf-hero__groutline--h1 { animation-delay: 500ms; }
[data-design="a"] .rf-hero__groutline--h2 { animation-delay: 650ms; }
[data-design="a"] .rf-hero__groutline--v1 { animation-delay: 800ms; }
[data-design="a"] .rf-hero__groutline--v2 { animation-delay: 950ms; }
@keyframes a-grout-draw { to { stroke-dashoffset: 0; } }

[data-design="a"] .rf-hero__inner {
  position: relative; z-index: 2;
  max-width: 760px; text-align: left;
  display: flex; flex-direction: column; gap: var(--sp-shoji);
}
[data-design="a"] .rf-hero__title {
  font-family: var(--font-display);
  font-size: clamp(34px, 6vw, 64px);
  line-height: 1.1;
  color: var(--design-a-sumi);
  opacity: 1;
}
[data-design="a"] .rf-hero__subtitle {
  font-family: var(--font-body);
  font-size: clamp(16px, 2vw, 19px);
  line-height: 1.5;
  color: var(--design-a-sumi);
  opacity: 1;
}
[data-design="a"] .rf-hero__proof {
  font-family: var(--font-mono);
  font-size: 13px; letter-spacing: 0.04em;
  color: var(--design-a-asagi);
  opacity: 1;
}

@media (max-width: 560px) {
  [data-design="a"] .rf-ripple__ring { right: clamp(56px, 18vw, 96px); }
  [data-design="a"] .rf-hero { min-height: 86vh; }
}
@media (max-width: 380px) {
  [data-design="a"] .rf-header { padding: var(--sp-tile) var(--sp-shoji); }
  [data-design="a"] .rf-logo__mark { font-size: 20px; }
}

/* ================= CTA (Element 2 — funnel anchor) ================= */
[data-design="a"] .rf-cta {
  position: relative; display: inline-flex; align-items: center; gap: var(--sp-tile);
  padding: 18px 28px 18px 26px; min-height: 56px;
  background: var(--design-a-primary); color: var(--design-a-shiro);
  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: transform var(--dur-drop) var(--motion-settle), background var(--dur-drop) var(--motion-settle);
  width: fit-content;
}
[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(--design-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(--design-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: 0.8; transform: translate(50%, -50%) scale(1); }
  100%     { opacity: 0; transform: translate(50%, -50%) scale(18); }
}
@media (hover: hover) and (pointer: fine) {
  [data-design="a"] .rf-cta:hover { background: var(--design-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(--design-a-mizu); }
[data-design="a"] .rf-cta:active { transform: translateY(1px); }
[data-design="a"] .rf-cta--footer { margin-top: 0; }

/* ================= POINTER (Element 6) ================= */
[data-design="a"] .rf-pointer {
  display: flex; justify-content: center;
  padding: clamp(32px, 6vw, 56px) 16px clamp(40px, 7vw, 64px);
}
[data-design="a"] .a-pointer__hit {
  position: relative; display: inline-block;
  width: 2px; height: 88px; text-decoration: none;
  color: var(--design-a-primary);
}
[data-design="a"] .a-pointer__line {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, transparent 0%, currentColor 100%);
  transform-origin: top center;
  animation: a-pointer-fill 5s ease-in-out infinite;
  opacity: 0.7;
}
[data-design="a"] .a-pointer__chip {
  position: absolute; left: 50%; bottom: -3px;
  width: 7px; height: 7px; margin-left: -3.5px;
  background: currentColor;
  transform: translateY(-64px) scale(0.4) rotate(45deg);
  opacity: 0;
  animation: a-pointer-tile 5s ease-in infinite;
}
@keyframes a-pointer-fill {
  0%, 100% { transform: scaleY(0.4); opacity: 0.4; }
  60%      { transform: scaleY(1);   opacity: 0.85; }
}
@keyframes a-pointer-tile {
  0%, 55%  { transform: translateY(-64px) scale(0.4) rotate(45deg); opacity: 0; }
  70%      { transform: translateY(-64px) scale(1) rotate(45deg);   opacity: 1; }
  92%      { transform: translateY(0) scale(1) rotate(45deg);       opacity: 1; }
  100%     { transform: translateY(0) scale(0.2) rotate(45deg);     opacity: 0; }
}

/* ================= ESTIMATOR (Element 5) ================= */
[data-design="a"] .rf-interactive {
  padding: var(--sp-yu) clamp(20px, 5vw, 56px);
  background: var(--design-a-shiro);
}
[data-design="a"] .rf-interactive__head { max-width: 720px; margin-bottom: 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(--design-a-asagi); margin: 0 0 var(--sp-tile);
}
[data-design="a"] .rf-interactive__head h2 {
  font-family: var(--font-display); font-size: clamp(28px, 4.5vw, 44px);
  color: var(--design-a-sumi); line-height: 1.15; margin: 0 0 var(--sp-tile);
}
[data-design="a"] .rf-interactive__lede {
  font-family: var(--font-body); font-size: 17px; line-height: 1.6;
  color: var(--design-a-sumi); max-width: 56ch;
}

[data-design="a"] .a-estimator {
  max-width: 900px; margin-inline: auto;
  background: var(--design-a-cream);
  border: 1px solid var(--design-a-mist);
  border-radius: var(--r-stone);
  padding: var(--sp-tatami) clamp(20px, 4vw, 40px);
  position: relative;
}

[data-design="a"] .a-estimator__readout {
  display: flex; flex-direction: column; gap: 4px;
  padding: var(--sp-tile) var(--sp-shoji);
  background: var(--design-a-primary); color: var(--design-a-shiro);
  border-radius: var(--r-tile);
  margin-bottom: var(--sp-tatami);
}
[data-design="a"] .a-estimator__readout-label {
  font-family: var(--font-body); font-size: 11px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--design-a-mizu);
}
[data-design="a"] .a-estimator__readout-value {
  font-family: var(--font-display); font-size: clamp(28px, 4vw, 40px);
  line-height: 1.1;
}
[data-design="a"] .a-estimator__readout-note {
  font-family: var(--font-body); font-size: 12px; color: var(--design-a-mizu);
}

[data-design="a"] .a-estimator__stepper {
  display: flex; gap: 8px; margin-bottom: var(--sp-tatami);
}
[data-design="a"] .a-estimator__stepper-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--design-a-mist); border: 1px solid var(--design-a-primary);
  transition: background var(--dur-drop) var(--motion-settle);
}
[data-design="a"] .a-estimator__stepper-dot.is-active,
[data-design="a"] .a-estimator__stepper-dot.is-done {
  background: var(--design-a-primary);
}

/* EST-8 (HARD): exactly one step visible at a time */
[data-design="a"] .a-estimator__step { display: none; }
[data-design="a"] .a-estimator__step.is-active { display: block; }
[data-design="a"] .a-estimator__step[hidden] { display: none; }

[data-design="a"] .a-estimator__question {
  font-family: var(--font-display); font-size: clamp(22px, 3vw, 28px);
  color: var(--design-a-sumi); margin-bottom: var(--sp-shoji);
}
[data-design="a"] .a-estimator__grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(min(220px, 100%), 1fr));
  gap: var(--sp-tile);
}
[data-design="a"] .a-estimator__chip {
  appearance: none; cursor: pointer; text-align: left;
  background: var(--design-a-shiro); color: var(--design-a-sumi);
  border: 1px solid var(--design-a-primary);
  border-radius: var(--r-tile);
  padding: var(--sp-shoji) var(--sp-tile);
  min-height: 56px;
  font-family: var(--font-body); font-size: 15px; line-height: 1.3;
  transition: transform var(--dur-drop) var(--motion-settle), background var(--dur-drop) var(--motion-settle);
}
@media (hover: hover) and (pointer: fine) {
  [data-design="a"] .a-estimator__chip:hover { background: var(--design-a-mist); transform: translateY(-2px); }
}
[data-design="a"] .a-estimator__chip:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--design-a-mizu); }
[data-design="a"] .a-estimator__chip.is-selected {
  background: var(--design-a-primary); color: var(--design-a-shiro);
}
[data-design="a"] .a-estimator__chip--notsure { border-style: dashed; }

/* nav never overlaps chips — sits below the grid, own row */
[data-design="a"] .a-estimator__nav {
  margin-top: var(--sp-tatami);
  display: flex; justify-content: flex-start;
}
[data-design="a"] .a-estimator__back {
  appearance: none; cursor: pointer; background: transparent;
  border: 1px solid var(--design-a-primary); color: var(--design-a-sumi);
  border-radius: var(--r-tile); padding: 12px 20px; min-height: 44px;
  font-family: var(--font-body); font-size: 13px; letter-spacing: 0.08em; text-transform: uppercase;
}

[data-design="a"] .a-estimator__capture-summary {
  font-family: var(--font-body); font-size: 15px; line-height: 1.6;
  color: var(--design-a-sumi); max-width: 60ch; margin-bottom: var(--sp-shoji);
}
[data-design="a"] .a-estimator__form { display: grid; gap: var(--sp-tile); max-width: 480px; }
[data-design="a"] .a-field { display: flex; flex-direction: column; gap: 6px; }
[data-design="a"] .a-field__label {
  font-family: var(--font-body); font-size: 11px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--design-a-asagi);
}
[data-design="a"] .a-field__input {
  appearance: none; background: var(--design-a-shiro); color: var(--design-a-sumi);
  border: 0; border-bottom: 1px solid var(--design-a-primary);
  padding: 12px 10px; font-family: var(--font-body); font-size: 15px;
  border-radius: 0; min-height: 44px;
}
[data-design="a"] .a-field__input:focus-visible {
  outline: none; border-bottom-color: var(--design-a-asagi);
  box-shadow: 0 1px 0 0 var(--design-a-asagi);
}
[data-design="a"] .a-estimator__actions {
  display: flex; gap: var(--sp-tile); margin-top: var(--sp-tile); flex-wrap: wrap;
}
[data-design="a"] .a-stamp {
  appearance: none; cursor: pointer;
  padding: 14px 22px; min-height: 56px;
  font-family: var(--font-body); font-size: 13px; letter-spacing: 0.1em;
  text-transform: uppercase; border-radius: var(--r-tile);
  border: 1px solid var(--design-a-primary);
  transition: transform var(--dur-drop) var(--motion-settle), background var(--dur-drop) var(--motion-settle);
}
[data-design="a"] .a-stamp--primary { background: var(--design-a-primary); color: var(--design-a-shiro); }
@media (hover: hover) and (pointer: fine) {
  [data-design="a"] .a-stamp--primary:hover { background: var(--design-a-asagi); }
}
[data-design="a"] .a-stamp--ghost { background: transparent; color: var(--design-a-sumi); }
[data-design="a"] .a-stamp:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--design-a-mizu); }
[data-design="a"] .a-stamp:active { transform: translateY(1px); }

[data-design="a"] .a-estimator__done { text-align: center; padding: var(--sp-tatami) 0; }
[data-design="a"] .a-hanko {
  display: inline-flex; align-items: center; justify-content: center;
  width: 64px; height: 64px; border-radius: 50%;
  background: var(--design-a-akane); color: var(--design-a-shiro);
  font-family: var(--font-display); font-size: 30px;
  transform: scale(0.6) rotate(-6deg); opacity: 0;
  animation: a-hanko-in 420ms var(--motion-settle) forwards;
  margin-bottom: var(--sp-tile);
}
@keyframes a-hanko-in { to { transform: scale(1) rotate(-6deg); opacity: 1; } }
[data-design="a"] .a-estimator__done h3 {
  font-family: var(--font-display); font-size: clamp(24px, 3.4vw, 32px);
  color: var(--design-a-sumi); margin-bottom: var(--sp-step);
}
[data-design="a"] .a-estimator__done p {
  font-family: var(--font-body); font-size: 15px; color: var(--design-a-sumi);
  max-width: 50ch; margin-inline: auto;
}

/* ================= GALLERY (Element 4 ambient-a reuse) ================= */
[data-design="a"] .rf-ambient-a { padding: var(--sp-yu) clamp(20px, 5vw, 56px); background: var(--design-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(--design-a-sumi); line-height: 1.15;
}
[data-design="a"] .a-gallery-note {
  max-width: 900px; margin-inline: auto;
  background: var(--design-a-cream); border: 1px solid var(--design-a-mist);
  border-radius: var(--r-stone); padding: var(--sp-tatami) clamp(20px, 4vw, 40px);
  margin-bottom: var(--sp-tatami);
}
[data-design="a"] .a-gallery-note p {
  font-family: var(--font-body); font-size: 16px; line-height: 1.6; color: var(--design-a-sumi);
  max-width: 65ch;
}
[data-design="a"] .a-inline-cta {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 56px; padding: 16px 28px;
  background: var(--design-a-primary); color: var(--design-a-shiro);
  font-family: var(--font-body); font-size: 15px; letter-spacing: 0.06em; text-transform: uppercase;
  text-decoration: none; border-radius: var(--r-tile);
  margin-inline: auto; margin-top: 0;
  transition: background var(--dur-drop) var(--motion-settle);
}
@media (hover: hover) and (pointer: fine) {
  [data-design="a"] .a-inline-cta:hover { background: var(--design-a-asagi); }
}

/* tile-types grid reuses .rf-tilegrid */
[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(--design-a-primary);
  border: 1px solid var(--design-a-primary);
}
[data-design="a"] .rf-tile {
  position: relative; padding: var(--sp-tatami) var(--sp-shoji);
  background: var(--design-a-primary); color: var(--design-a-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(--design-a-asagi) 0%, var(--design-a-primary) 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(3n+1)::before { animation-delay: 0s; }
[data-design="a"] .rf-tile:nth-child(3n+2)::before { animation-delay: 2.3s; }
[data-design="a"] .rf-tile:nth-child(3n+3)::before { animation-delay: 4.6s; }
@keyframes a-tile-glaze { 0%, 100% { opacity: 0; } 40% { opacity: 0.4; } 60% { opacity: 0.4; } }
[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(--design-a-mizu); }
[data-design="a"] .rf-tile__name { font-family: var(--font-display); font-size: clamp(20px, 2.6vw, 26px); line-height: 1.2; }

/* ================= WATERPROOFING / AMBIENT-B (Element 4) ================= */
[data-design="a"] .rf-ambient-b { padding: var(--sp-yu) clamp(20px, 5vw, 56px); background: var(--design-a-cream); }
[data-design="a"] .rf-ambient-b__grid {
  display: grid; gap: var(--sp-tatami);
  grid-template-columns: minmax(200px, 1fr) minmax(0, 1.6fr);
  align-items: center; max-width: 1180px; margin-inline: 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(140px, 20vw, 220px); height: auto; max-width: 100%; }
[data-design="a"] .rf-kanji__stroke {
  fill: none; stroke: var(--design-a-primary); stroke-width: 6;
  stroke-linecap: round; stroke-linejoin: round;
  stroke-dasharray: 200; stroke-dashoffset: 200;
  opacity: 0.78;
}
[data-design="a"] .rf-ambient-b.is-drawn .rf-kanji__stroke {
  animation: a-ink-draw 1.4s var(--motion-inkdraw) forwards,
             a-ink-breath 16s var(--motion-settle) 1.4s infinite;
}
[data-design="a"] .rf-ambient-b.is-drawn .rf-kanji__stroke:nth-child(2) { animation-delay: 180ms, 1.58s; }
[data-design="a"] .rf-ambient-b.is-drawn .rf-kanji__stroke:nth-child(3) { animation-delay: 360ms, 1.76s; }
[data-design="a"] .rf-ambient-b.is-drawn .rf-kanji__stroke:nth-child(4) { animation-delay: 540ms, 1.94s; }
[data-design="a"] .rf-ambient-b.is-drawn .rf-kanji__stroke:nth-child(5) { animation-delay: 720ms, 2.12s; }
@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(--design-a-asagi);
}
[data-design="a"] .rf-ambient-b__body h2 {
  font-family: var(--font-display); font-size: clamp(26px, 4vw, 38px);
  margin: 0 0 var(--sp-shoji); color: var(--design-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(--design-a-sumi); max-width: 60ch; margin-inline: auto 0;
  display: flex; flex-direction: column; gap: var(--sp-tile);
}
[data-design="a"] .rf-ambient-b.is-paused .rf-kanji__stroke { animation-play-state: paused; }

/* ================= PROCESS ================= */
[data-design="a"] .a-process__track {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--sp-shoji);
}
[data-design="a"] .a-process__phase {
  display: flex; flex-direction: column; gap: var(--sp-step);
  border-top: 2px solid var(--design-a-primary); padding-top: var(--sp-tile);
}
[data-design="a"] .a-process__num { font-family: var(--font-mono); font-size: 12px; color: var(--design-a-asagi); }
[data-design="a"] .a-process__label { font-family: var(--font-display); font-size: 19px; color: var(--design-a-sumi); }

/* ================= ABOUT ================= */
[data-design="a"] .a-about__grid { grid-template-columns: 1fr; }
[data-design="a"] .a-tel-chip {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 56px; padding: 14px 24px;
  border: 1px solid var(--design-a-primary); color: var(--design-a-sumi);
  font-family: var(--font-body); font-size: 15px; letter-spacing: 0.04em;
  text-decoration: none; border-radius: var(--r-tile);
  margin-top: var(--sp-shoji); width: fit-content;
  transition: background var(--dur-drop) var(--motion-settle);
}
@media (hover: hover) and (pointer: fine) {
  [data-design="a"] .a-tel-chip:hover { background: var(--design-a-mist); }
}
[data-design="a"] .a-tel-chip--footer { border-color: var(--design-a-mizu); color: var(--design-a-shiro); margin-top: 0; }
@media (hover: hover) and (pointer: fine) {
  [data-design="a"] .a-tel-chip--footer:hover { background: rgba(244,239,230,0.1); }
}

/* ================= FOOTER ================= */
[data-design="a"] .a-footer {
  background: var(--design-a-primary); color: var(--design-a-shiro);
  padding: var(--sp-tatami) clamp(20px, 5vw, 56px) var(--sp-shoji);
  border-top: 1px solid var(--design-a-hinoki);
}
[data-design="a"] .a-footer__inner {
  max-width: 1320px; margin-inline: auto;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--sp-tatami);
  padding-bottom: var(--sp-tatami);
}
[data-design="a"] .a-footer__col { display: flex; flex-direction: column; gap: var(--sp-tile); align-items: flex-start; }
[data-design="a"] .a-footer__brand { font-family: var(--font-display); font-size: 22px; }
[data-design="a"] .a-footer__col p { font-family: var(--font-body); font-size: 15px; color: var(--design-a-mizu); }
[data-design="a"] .a-footer__copyright {
  max-width: 1320px; margin-inline: auto;
  font-family: var(--font-body); font-size: 13px; color: var(--design-a-mizu);
  border-top: 1px solid rgba(244,239,230,0.15); padding-top: var(--sp-shoji);
}

/* ================= reduced motion ================= */
@media (prefers-reduced-motion: reduce) {
  [data-design="a"] .rf-ripple__ring,
  [data-design="a"] .rf-hero__tile rect,
  [data-design="a"] .rf-hero__groutline,
  [data-design="a"] .rf-cta__drop,
  [data-design="a"] .rf-cta__ripple,
  [data-design="a"] .a-pointer__line,
  [data-design="a"] .a-pointer__chip,
  [data-design="a"] .rf-tile::before,
  [data-design="a"] .rf-kanji__stroke,
  [data-design="a"] .a-hanko {
    animation: none !important;
  }
  [data-design="a"] .rf-hero__tile rect { opacity: 0.45; transform: scale(1); }
  [data-design="a"] .rf-hero__groutline { stroke-dashoffset: 0; opacity: 0.5; }
  [data-design="a"] .a-pointer__line { opacity: 0.6; }
  [data-design="a"] .a-pointer__chip { opacity: 0.6; transform: translateY(-30px) scale(0.7) rotate(45deg); }
  [data-design="a"] .rf-tile::before { opacity: 0.2; }
  [data-design="a"] .rf-kanji__stroke { stroke-dashoffset: 0; opacity: 0.85; }
  [data-design="a"] .a-hanko { opacity: 1; transform: scale(1) rotate(-6deg); }
  [data-design="a"] .rf-noren__panel,
  [data-design="a"] .rf-noren__rule,
  [data-design="a"] .rf-noren__list,
  [data-design="a"] .rf-noren__drawer-extra,
  [data-design="a"] .a-estimator__chip,
  [data-design="a"] .a-stamp,
  [data-design="a"] .rf-cta { transition-duration: 0ms; }
}

/* ================= mobile no-h-scroll safety (bottom appended) ================= */
[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; }

/* stranded-wrapper autofix (drain 2026-07-03): every fixed max-width column centers — gate content_uncentered_left_stranded */
[data-design="a"] .rf-hero__inner { margin-inline: auto; }
[data-design="a"] .rf-interactive__head { margin-inline: auto; }
[data-design="a"] .rf-interactive__lede { margin-inline: auto; }
[data-design="a"] .a-estimator__capture-summary { margin-inline: auto; }
[data-design="a"] .a-estimator__form { margin-inline: auto; }
[data-design="a"] .rf-ambient-a__head { margin-inline: auto; }
[data-design="a"] .a-gallery-note p { margin-inline: 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; }