/* ============================================================
   ONE-WAY CONSTRUCTION NW — Design A (Method, remapped → "a")
   Trade: construction · drafting-room register, weathered-wood +
   structural-amber accent. All selectors scoped [data-design="a"].
   ============================================================ */

[data-design="a"] {
  /* ---- color tokens (trade-rooted: drafting blueprint + weathered wood) ---- */
  --ink:           #14110D;   /* near-black, warm — never #000 */
  --ink-2:         #3A352D;   /* secondary text */
  --muted:         #756C5E;   /* meta, mono metadata */
  --bg:            #F6F3EC;   /* paper / drafting-vellum — never #FFF */
  --surface:       #FFFFFF;   /* cells / forms; lifts via hairline */
  --border:        #E1DAcc;   /* hairlines */
  --border:        #E1DACC;
  --border-strong: #1F1A12;   /* ink-weight rule */
  --accent:        #C8742B;   /* structural amber — eye-draw */
  --design-a-primary: var(--accent);
  --accent-ink:    #14110D;   /* ink on amber */
  --accent-soft:   #E8DCC4;   /* drafting-tan tint */
  --line:          #B7A77F;   /* blueprint dimension line */
  --critical:      #B23A2E;
  --success:       #4B7A45;   /* moss / cleared */

  --font-display: 'Inter', -apple-system, system-ui, sans-serif;
  --font-body:    'Inter', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, 'SFMono-Regular', monospace;

  --gap-tick: 4px; --gap-row: 12px; --gap-cell: 20px;
  --gap-stack: 32px; --gap-section: 96px; --gap-rail: 16px;

  --ease-snap:   cubic-bezier(0.2, 0.9, 0.1, 1);
  --ease-breath: cubic-bezier(0.45, 0, 0.55, 1);
  --dur-tick: 80ms; --dur-snap: 180ms; --dur-stage: 320ms;
  --dur-breath: 4s; --dur-pool: 24s;

  --r-tight: 2px; --r-cell: 6px; --r-cmd: 8px; --r-round: 9999px;

  --lift-hairline: 0 0 0 1px var(--border);
  --lift-ink:      0 0 0 1px var(--ink);

  box-sizing: border-box;
  color: var(--ink);
  background: var(--bg);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}
[data-design="a"] *, [data-design="a"] *::before, [data-design="a"] *::after { box-sizing: border-box; }

/* ===================== ELEMENT 1 — HEADER ===================== */
[data-design="a"] .rf-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
}
[data-design="a"] .rf-header__bar {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px; padding-inline: clamp(16px, 4vw, 40px);
}
[data-design="a"] .rf-logo {
  display: inline-flex; gap: var(--gap-tick); align-items: baseline;
  color: var(--ink); text-decoration: none;
  font: 500 clamp(12px, 3vw, 15px)/1 var(--font-mono);
  letter-spacing: 0.08em; text-transform: uppercase;
}
[data-design="a"] .rf-logo__bracket { color: var(--accent); }
[data-design="a"] .rf-burger {
  position: relative; display: inline-flex; flex-direction: column;
  gap: 5px; padding: 12px 14px; min-width: 44px; min-height: 44px;
  align-items: center; justify-content: center;
  background: transparent; border: 1px solid var(--border);
  border-radius: var(--r-tight); cursor: pointer;
  transition: border-color 120ms var(--ease-snap);
}
[data-design="a"] .rf-burger:hover { border-color: var(--ink); }
[data-design="a"] .rf-burger__row { width: 18px; height: 1.5px; background: var(--ink); }
[data-design="a"] .rf-burger__kbd {
  position: absolute; right: -52px; top: 50%; transform: translateY(-50%);
  font: 500 11px/1 var(--font-mono); color: var(--muted); letter-spacing: 0.08em;
}
@media (max-width: 560px) { [data-design="a"] .rf-burger__kbd { display: none; } }
[data-design="a"] .rf-header__rule { position: relative; height: 1px; background: transparent; overflow: hidden; }
[data-design="a"] .rf-header__regmark {
  position: absolute; top: 0; left: -8%; width: 6px; height: 1px;
  background: var(--accent); animation: a-sweep var(--dur-pool) linear infinite;
}
@keyframes a-sweep {
  0% { transform: translateX(0); opacity: 0; }
  10% { opacity: 1; } 90% { opacity: 1; }
  100% { transform: translateX(112vw); opacity: 0; }
}

/* ---- drawer (focus-trapped; display:none when closed) ---- */
[data-design="a"] .rf-drawer { position: fixed; inset: 0; z-index: 80; }
[data-design="a"] .rf-drawer[hidden] { display: none; }
[data-design="a"] .rf-drawer__scrim {
  position: absolute; inset: 0;
  background: color-mix(in oklab, var(--ink), transparent 78%);
}
[data-design="a"] .rf-drawer__panel {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; gap: var(--gap-stack);
  justify-content: center;
  padding: 64px clamp(20px, 6vw, 64px);
  background: var(--bg);
  margin-left: auto; max-width: 520px;
  border-left: 1px solid var(--border);
  animation: a-drawer-in var(--dur-stage) var(--ease-snap) both;
}
@keyframes a-drawer-in { from { transform: translateX(24px); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
[data-design="a"] .rf-drawer__x {
  position: absolute; top: 20px; right: 20px;
  width: 44px; height: 44px; display: flex; align-items: center; justify-content: center;
  background: transparent; border: 1px solid var(--border); border-radius: var(--r-tight);
  font: 400 24px/1 var(--font-mono); color: var(--ink); cursor: pointer;
}
[data-design="a"] .rf-drawer__x:hover { border-color: var(--ink); }
[data-design="a"] .rf-drawer__nav { display: flex; flex-direction: column; gap: var(--gap-stack); }
[data-design="a"] .rf-drawer__nav a {
  font: 500 clamp(28px, 7vw, 48px)/1.05 var(--font-display);
  letter-spacing: -0.025em; color: var(--ink); text-decoration: none;
  transition: color 120ms var(--ease-snap);
}
[data-design="a"] .rf-drawer__nav a:hover { color: var(--accent); }
[data-design="a"] .rf-drawer__ctas { display: flex; flex-direction: column; gap: var(--gap-rail); align-items: flex-start; }
[data-design="a"] .rf-drawer__phone {
  display: inline-flex; align-items: center; gap: 10px;
  font: 500 17px/1 var(--font-mono); color: var(--ink); text-decoration: none;
  letter-spacing: 0.04em;
}
[data-design="a"] .rf-drawer__phone-kbd {
  border: 1px solid var(--border); padding: 6px 8px; border-radius: var(--r-tight);
  font-size: 11px; color: var(--muted);
}
[data-design="a"] .rf-drawer__phone:hover { color: var(--accent); }
[data-design="a"] .rf-drawer__meta { display: flex; gap: var(--gap-tick); align-items: center; font: 500 13px/1 var(--font-mono); color: var(--muted); }
[data-design="a"] .rf-drawer__kbd { border: 1px solid var(--border); padding: 4px 8px; border-radius: var(--r-tight); color: var(--ink); }

/* ===================== ELEMENT 2 — CTA ===================== */
[data-design="a"] .rf-cta {
  position: relative; display: inline-flex; align-items: center; gap: 12px;
  padding: 15px 22px; min-height: 44px;
  background: var(--accent); color: var(--accent-ink);
  border: 1px solid var(--ink); border-radius: var(--r-cmd);
  font: 500 15px/1 var(--font-mono); letter-spacing: 0.02em;
  text-transform: uppercase; text-decoration: none; cursor: pointer;
  transition: transform 120ms var(--ease-snap), box-shadow 120ms var(--ease-snap);
  animation: a-cta-breath var(--dur-breath) var(--ease-breath) infinite;
  will-change: transform;
}
[data-design="a"] .rf-cta__kbd {
  display: inline-flex; align-items: center; justify-content: center;
  width: 22px; height: 22px; border: 1px solid var(--ink); border-radius: var(--r-tight);
  font: 500 13px/1 var(--font-mono); transition: transform 80ms var(--ease-snap);
}
[data-design="a"] .rf-cta:hover { box-shadow: 0 0 0 3px var(--ink); }
[data-design="a"] .rf-cta:focus-visible { outline: none; box-shadow: 0 0 0 2px var(--accent), 0 0 0 3px var(--ink); }
[data-design="a"] .rf-cta:active { transform: translateY(1px); }
[data-design="a"] .rf-cta:active .rf-cta__kbd { transform: translateX(2px); }
[data-design="a"] .rf-cta--ghost {
  background: transparent; color: var(--ink); border-color: var(--ink); animation: none;
}
[data-design="a"] .rf-cta--ghost:hover { background: var(--accent-soft); }
@keyframes a-cta-breath {
  0%, 100% { box-shadow: 0 0 0 0 color-mix(in oklab, var(--accent), transparent 50%); }
  50% { box-shadow: 0 0 0 6px color-mix(in oklab, var(--accent), transparent 80%); }
}

/* ===================== HERO ===================== */
[data-design="a"] .rf-hero {
  position: relative; overflow: hidden;
  padding: clamp(72px, 12vh, 140px) clamp(16px, 4vw, 40px) clamp(56px, 8vh, 96px);
  min-height: 64vh; display: flex; align-items: center;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
/* Element 3 — unique animated hero: dimension-line drafting (ONE layer) */
[data-design="a"] .rf-hero__backdrop {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  opacity: 0.9;
}
[data-design="a"] .rf-hero__draft {
  position: absolute; right: -4%; top: 50%; transform: translateY(-50%);
  width: min(720px, 78%); height: auto; max-height: 92%;
}
[data-design="a"] .rf-draft__grid {
  background-image:
    linear-gradient(var(--accent-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--accent-soft) 1px, transparent 1px);
}
[data-design="a"] .rf-hero__backdrop::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, color-mix(in oklab, var(--line), transparent 80%) 1px, transparent 1px),
    linear-gradient(to bottom, color-mix(in oklab, var(--line), transparent 80%) 1px, transparent 1px);
  background-size: 40px 40px;
  -webkit-mask-image: linear-gradient(105deg, transparent 0%, #000 40%, #000 100%);
  mask-image: linear-gradient(105deg, transparent 0%, #000 40%, #000 100%);
  animation: a-grid-drift 9s var(--ease-breath) infinite alternate;
}
@keyframes a-grid-drift {
  0% { background-position: 0 0; }
  100% { background-position: 14px 10px; }
}
[data-design="a"] .rf-draft__elev {
  fill: none; stroke: var(--line); stroke-width: 1.5;
  stroke-dasharray: 1100; stroke-dashoffset: 1100;
  animation: a-draw 1.8s var(--ease-snap) forwards, a-elev-breath 8s var(--ease-breath) 1.8s infinite;
}
[data-design="a"] .rf-draft__dim {
  stroke: var(--accent); stroke-width: 1; opacity: 0;
  stroke-dasharray: 300; stroke-dashoffset: 300;
  animation: a-draw-dim 1.4s var(--ease-snap) forwards, a-dim-breath 7s var(--ease-breath) infinite;
}
[data-design="a"] .rf-draft__dim--1 { animation-delay: 0.6s, 2s; }
[data-design="a"] .rf-draft__dim--2 { animation-delay: 1.0s, 2.4s; }
[data-design="a"] .rf-draft__dim--3 { animation-delay: 1.4s, 2.8s; }
[data-design="a"] .rf-draft__node {
  fill: var(--accent); opacity: 0;
  animation: a-node-in 0.6s var(--ease-snap) 1.6s forwards, a-node-pulse 4s var(--ease-breath) 2.2s infinite;
}
@keyframes a-draw { to { stroke-dashoffset: 0; } }
@keyframes a-draw-dim { to { stroke-dashoffset: 0; opacity: 0.85; } }
@keyframes a-node-in { to { opacity: 1; } }
@keyframes a-elev-breath { 0%,100% { opacity: 0.85; } 50% { opacity: 1; } }
@keyframes a-dim-breath { 0%,100% { opacity: 0.55; } 50% { opacity: 0.9; } }
@keyframes a-node-pulse { 0%,100% { opacity: 0.6; r: 3.5; } 50% { opacity: 1; r: 4.6; } }

[data-design="a"] .rf-hero__inner {
  position: relative; z-index: 1; max-width: 680px;
  display: flex; flex-direction: column; gap: 16px;
  opacity: 1;
}
[data-design="a"] .rf-hero__kicker {
  font: 500 12px/1 var(--font-mono); color: var(--muted);
  letter-spacing: 0.14em; text-transform: uppercase;
}
[data-design="a"] .rf-hero__title {
  font: 500 clamp(34px, 6vw, 56px)/1.05 var(--font-display);
  letter-spacing: -0.025em; margin: 0; color: var(--ink);
  text-wrap: balance;
}
[data-design="a"] .rf-hero__sub {
  font: 400 clamp(16px, 2.4vw, 19px)/1.55 var(--font-body);
  color: var(--ink-2); margin: 0; max-width: 60ch;
}
[data-design="a"] .rf-hero__proof {
  font: 500 13px/1.5 var(--font-mono); color: var(--muted);
  letter-spacing: 0.02em; margin: 0;
}
[data-design="a"] .rf-hero__cta-row { display: flex; flex-wrap: wrap; gap: var(--gap-rail); align-items: center; margin-top: 8px; }
[data-design="a"] .rf-hero__chip {
  font: 500 11px/1 var(--font-mono); letter-spacing: 0.12em;
  color: var(--ink-2); padding: 9px 12px; border: 1px solid var(--border);
  border-radius: var(--r-tight); background: var(--surface);
}

/* ===================== ELEMENT 6 — POINTER ===================== */
[data-design="a"] .rf-pointer-wrap {
  display: flex; justify-content: center;
  padding: clamp(32px, 6vh, 56px) clamp(16px, 4vw, 40px);
  background: var(--bg);
  opacity: 1;
}
[data-design="a"] .rf-pointer {
  display: flex; flex-direction: column; align-items: center; gap: 14px;
  min-height: 40px;
}
[data-design="a"] .rf-pointer__label {
  font: 500 11px/1 var(--font-mono); color: var(--muted);
  letter-spacing: 0.2em; text-transform: uppercase;
}
[data-design="a"] .rf-pointer__dim {
  display: flex; align-items: center; gap: 0; width: clamp(140px, 30vw, 220px);
}
[data-design="a"] .rf-pointer__tick { width: 1px; height: 12px; background: var(--line); flex: 0 0 auto; }
[data-design="a"] .rf-pointer__line {
  flex: 1; height: 1px; background: var(--line); position: relative; overflow: hidden;
}
[data-design="a"] .rf-pointer__line::after {
  content: ''; position: absolute; top: 0; left: -30%; width: 30%; height: 1px;
  background: var(--accent); animation: a-pointer-trace 3.2s var(--ease-breath) infinite;
}
@keyframes a-pointer-trace { 0% { left: -30%; } 100% { left: 100%; } }
[data-design="a"] .rf-pointer__caption {
  font: 400 13px/1 var(--font-body); color: var(--ink-2);
}

/* ===================== ELEMENT 5 — FUNNEL ===================== */
[data-design="a"] .rf-interactive { padding: var(--gap-section) clamp(16px, 4vw, 40px); }
[data-design="a"] .rf-funnel__head { max-width: 720px; margin-bottom: var(--gap-stack); display: flex; flex-direction: column; gap: 10px; }
[data-design="a"] .rf-funnel__kicker { font: 500 12px/1 var(--font-mono); color: var(--muted); letter-spacing: 0.12em; text-transform: uppercase; }
[data-design="a"] .rf-funnel__title { font: 500 clamp(28px, 4vw, 40px)/1.05 var(--font-display); letter-spacing: -0.025em; margin: 0; color: var(--ink); }
[data-design="a"] .rf-funnel__sub { font: 400 16px/1.55 var(--font-body); color: var(--ink-2); margin: 0; max-width: 62ch; }
[data-design="a"] .rf-funnel {
  border: 1px solid var(--ink); border-radius: var(--r-cell);
  background: var(--surface); padding: clamp(20px, 3vw, 36px); max-width: 720px;
}
[data-design="a"] .rf-funnel__steps {
  list-style: none; margin: 0 0 var(--gap-stack); padding: 0;
  display: flex; gap: 16px; flex-wrap: wrap;
  font: 500 12px/1 var(--font-mono); color: var(--muted); letter-spacing: 0.08em;
}
[data-design="a"] .rf-funnel__steps li.is-active { color: var(--ink); }
[data-design="a"] .rf-funnel__steps li.is-done { color: var(--ink); text-decoration: line-through; text-decoration-color: var(--accent); text-decoration-thickness: 2px; }
[data-design="a"] .rf-funnel__panel { border: 0; padding: 0; margin: 0; display: none; }
[data-design="a"] .rf-funnel__panel.is-active {
  display: flex; flex-direction: column; gap: 16px;
  animation: a-step-in var(--dur-stage) var(--ease-snap) both;
}
@keyframes a-step-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
[data-design="a"] .rf-funnel__legend { font: 500 18px/1.3 var(--font-body); color: var(--ink); margin-bottom: 4px; padding: 0; }
[data-design="a"] .rf-funnel__note { font: 400 14px/1.5 var(--font-body); color: var(--muted); margin: 0; }
[data-design="a"] .rf-funnel__opts { display: grid; gap: 8px; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
[data-design="a"] .rf-funnel__opts label {
  display: flex; align-items: center; gap: 10px; min-height: 44px;
  border: 1px solid var(--border); border-radius: var(--r-tight);
  padding: 12px 14px; cursor: pointer; font: 500 14px/1.2 var(--font-mono);
  transition: border-color 120ms var(--ease-snap), background 120ms var(--ease-snap);
}
[data-design="a"] .rf-funnel__opts label:hover { border-color: var(--ink); }
[data-design="a"] .rf-funnel__opts label:has(input:checked) {
  border-color: var(--ink); background: var(--bg); box-shadow: inset 4px 0 0 var(--accent);
}
[data-design="a"] .rf-funnel__opts input { accent-color: var(--accent); width: 16px; height: 16px; flex: 0 0 auto; }
[data-design="a"] .rf-funnel__field { display: flex; flex-direction: column; gap: 6px; }
[data-design="a"] .rf-funnel__field > span { font: 500 12px/1.3 var(--font-mono); color: var(--muted); letter-spacing: 0.06em; text-transform: uppercase; }
[data-design="a"] .rf-funnel__field em { color: var(--muted); text-transform: none; font-style: italic; }
[data-design="a"] .rf-funnel__field input,
[data-design="a"] .rf-funnel__field textarea {
  font: 400 16px/1.4 var(--font-body); color: var(--ink);
  background: var(--bg); border: 0; border-bottom: 1px solid var(--border);
  padding: 10px 0; outline: none; resize: vertical;
  transition: border-color 120ms var(--ease-snap);
}
[data-design="a"] .rf-funnel__field input:focus,
[data-design="a"] .rf-funnel__field textarea:focus { border-bottom-color: var(--ink); box-shadow: 0 1px 0 0 var(--ink); }
[data-design="a"] .rf-funnel__actions { display: flex; gap: 12px; margin-top: 8px; align-items: center; flex-wrap: wrap; }
[data-design="a"] .rf-funnel__next,
[data-design="a"] .rf-funnel__submit {
  background: var(--accent); color: var(--accent-ink); border: 1px solid var(--ink);
  border-radius: var(--r-cmd); padding: 13px 18px; min-height: 44px;
  font: 500 14px/1 var(--font-mono); letter-spacing: 0.04em; text-transform: uppercase; cursor: pointer;
  transition: box-shadow 120ms var(--ease-snap);
}
[data-design="a"] .rf-funnel__next:hover,
[data-design="a"] .rf-funnel__submit:hover { box-shadow: 0 0 0 3px var(--ink); }
[data-design="a"] .rf-funnel__prev {
  background: transparent; color: var(--ink); border: 1px solid var(--border);
  border-radius: var(--r-cmd); padding: 13px 16px; min-height: 44px;
  font: 500 14px/1 var(--font-mono); letter-spacing: 0.04em; text-transform: uppercase; cursor: pointer;
}
[data-design="a"] .rf-funnel__prev:hover { border-color: var(--ink); }
[data-design="a"] .rf-funnel__receipt { display: flex; flex-direction: column; gap: 16px; }
[data-design="a"] .rf-funnel__receipt-id {
  font: 500 clamp(26px, 4vw, 38px)/1 var(--font-mono); letter-spacing: 0.04em;
  padding: 12px 16px; border: 1px solid var(--ink); border-radius: var(--r-cell);
  background: var(--accent); color: var(--accent-ink); width: max-content; max-width: 100%;
}
[data-design="a"] .rf-funnel__receipt p { font: 400 16px/1.55 var(--font-body); color: var(--ink-2); margin: 0; }
[data-design="a"] .rf-funnel__receipt a { color: var(--ink); }
[data-design="a"] .rf-funnel__below { max-width: 720px; margin: var(--gap-stack) 0 0; font: 400 14px/1.6 var(--font-body); color: var(--muted); }

/* forward-progress pointer (inside funnel head) */
[data-design="a"] .method-pointer { display: flex; align-items: center; gap: 16px; padding: 16px 0; font-variant-numeric: tabular-nums; color: var(--ink); max-width: 360px; }
[data-design="a"] .method-pointer__counter { font: 500 12px/1 var(--font-mono); letter-spacing: 0.16em; text-transform: uppercase; opacity: 0.75; }
[data-design="a"] .method-pointer__counter-now { display: inline-block; min-width: 1ch; animation: a-ptr-tick 320ms ease-out; }
[data-design="a"] .method-pointer__bar { position: relative; flex: 1; height: 2px; background: var(--border); border-radius: 1px; overflow: hidden; }
[data-design="a"] .method-pointer__bar-fill { position: absolute; inset: 0; width: var(--method-pointer-progress, 20%); background: var(--accent); transition: width 480ms cubic-bezier(0.22,0.61,0.36,1); }
[data-design="a"] .method-pointer__chev { font-size: 18px; color: var(--accent); animation: a-ptr-chev 4s ease-in-out infinite; }
@keyframes a-ptr-tick { 0% { transform: translateY(-6px); opacity: 0; } 100% { transform: translateY(0); opacity: 1; } }
@keyframes a-ptr-chev { 0%,100% { transform: translateX(0); opacity: 0.5; } 50% { transform: translateX(4px); opacity: 0.95; } }

/* ===================== ELEMENT 3 (seg A) — index ===================== */
[data-design="a"] .rf-ambient-a { padding: var(--gap-section) clamp(16px, 4vw, 40px); }
[data-design="a"] .rf-ambient-a__head { display: flex; flex-direction: column; gap: 8px; margin-bottom: var(--gap-stack); max-width: 720px; }
[data-design="a"] .rf-ambient-a__kicker { font: 500 12px/1 var(--font-mono); color: var(--muted); letter-spacing: 0.12em; text-transform: uppercase; }
[data-design="a"] .rf-ambient-a h2 { font: 500 clamp(28px, 4vw, 40px)/1.05 var(--font-display); letter-spacing: -0.025em; margin: 0; color: var(--ink); }
[data-design="a"] .rf-ambient-a__list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--border); }
[data-design="a"] .rf-area {
  display: grid; grid-template-columns: 96px 1.4fr 2fr 200px; align-items: center;
  gap: var(--gap-cell); padding: 22px 4px; border-bottom: 1px solid var(--border);
  transition: background 120ms var(--ease-snap);
}
[data-design="a"] .rf-area:hover { background: var(--surface); }
[data-design="a"] .rf-area__id { font: 500 13px/1 var(--font-mono); color: var(--muted); letter-spacing: 0.04em; }
[data-design="a"] .rf-area__name { font: 500 18px/1.2 var(--font-body); color: var(--ink); }
[data-design="a"] .rf-area__summary { font: 400 15px/1.5 var(--font-body); color: var(--ink-2); }
[data-design="a"] .rf-area__bar { position: relative; height: 1px; background: var(--border); overflow: hidden; }
[data-design="a"] .rf-area__fill { position: absolute; top: 0; left: 0; height: 1px; width: 0%; background: var(--ink); transition: width 1200ms var(--ease-snap); }
[data-design="a"] .rf-area.is-revealed .rf-area__fill { width: var(--rf-fill, 70%); }
[data-design="a"] .rf-area.is-revealed .rf-area__fill::after {
  content: ''; position: absolute; right: -3px; top: -1px; width: 3px; height: 3px;
  background: var(--accent); animation: a-area-pulse 2.4s var(--ease-breath) infinite;
}
@keyframes a-area-pulse { 0%,100% { opacity: 0.4; transform: scale(1); } 50% { opacity: 1; transform: scale(1.6); } }
@media (max-width: 720px) {
  [data-design="a"] .rf-area { grid-template-columns: 80px 1fr; grid-template-areas: "id name" ". summary" ". bar"; gap: 6px 16px; padding: 18px 0; }
  [data-design="a"] .rf-area__id { grid-area: id; }
  [data-design="a"] .rf-area__name { grid-area: name; }
  [data-design="a"] .rf-area__summary { grid-area: summary; font-size: 14px; }
  [data-design="a"] .rf-area__bar { grid-area: bar; margin-top: 8px; }
}

/* ===================== ELEMENT 4 (seg B) — status line ===================== */
[data-design="a"] .rf-vh { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
[data-design="a"] .rf-ambient-b {
  padding: var(--gap-section) clamp(16px, 4vw, 40px);
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  background: var(--surface);
}
[data-design="a"] .rf-status { display: flex; align-items: baseline; gap: 14px; font: 500 clamp(18px, 3vw, 30px)/1.3 var(--font-mono); color: var(--ink); }
[data-design="a"] .rf-status__prompt { color: var(--accent); }
[data-design="a"] .rf-status__line { flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: clip; }
[data-design="a"] .rf-status__cursor {
  display: inline-block; width: 0.55ch; height: 1em; background: var(--ink);
  vertical-align: -0.12em; margin-left: 2px; animation: a-cursor-blink 1.1s steps(1, end) infinite;
}
[data-design="a"] .rf-status__lane { font: 500 12px/1 var(--font-mono); color: var(--muted); letter-spacing: 0.1em; text-transform: uppercase; white-space: nowrap; }
@keyframes a-cursor-blink { 0%,50% { opacity: 1; } 51%,100% { opacity: 0; } }
@media (max-width: 560px) { [data-design="a"] .rf-status__lane { display: none; } }
[data-design="a"] .rf-status[data-paused="true"] .rf-status__cursor { animation-play-state: paused; }

/* ===================== ABOUT ===================== */
[data-design="a"] .rf-about {
  padding: var(--gap-section) clamp(16px, 4vw, 40px);
  display: grid; grid-template-columns: 200px 1fr; gap: var(--gap-stack);
  max-width: 1040px; margin-inline: auto;
}
[data-design="a"] .rf-about__rail { display: flex; flex-direction: column; gap: 10px; font: 500 12px/1.4 var(--font-mono); color: var(--muted); letter-spacing: 0.08em; border-left: 1px solid var(--accent); padding-left: 14px; }
[data-design="a"] .rf-about__body { display: flex; flex-direction: column; gap: 16px; align-items: flex-start; }
[data-design="a"] .rf-about__kicker { font: 500 12px/1 var(--font-mono); color: var(--muted); letter-spacing: 0.12em; text-transform: uppercase; }
[data-design="a"] .rf-about h2 { font: 500 clamp(26px, 4vw, 36px)/1.1 var(--font-display); letter-spacing: -0.02em; margin: 0; color: var(--ink); }
[data-design="a"] .rf-about p { font: 400 17px/1.6 var(--font-body); color: var(--ink-2); margin: 0; max-width: 64ch; }
@media (max-width: 720px) {
  [data-design="a"] .rf-about { grid-template-columns: 1fr; }
  [data-design="a"] .rf-about__rail { flex-direction: row; flex-wrap: wrap; gap: 8px 16px; }
}

/* ===================== FOOTER ===================== */
[data-design="a"] .rf-footer { padding: var(--gap-section) clamp(16px, 4vw, 40px) 48px; border-top: 1px solid var(--border); background: var(--bg); }
[data-design="a"] .rf-footer__cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: var(--gap-stack); margin-bottom: var(--gap-stack); }
[data-design="a"] .rf-footer__col { display: flex; flex-direction: column; gap: 8px; }
[data-design="a"] .rf-footer__h { font: 500 11px/1 var(--font-mono); color: var(--muted); letter-spacing: 0.14em; text-transform: uppercase; margin-bottom: 4px; }
[data-design="a"] .rf-footer__col a, [data-design="a"] .rf-footer__col span:not(.rf-footer__h) { font: 400 15px/1.5 var(--font-body); color: var(--ink-2); text-decoration: none; }
[data-design="a"] .rf-footer__col a:hover { color: var(--accent); }
[data-design="a"] .rf-footer__rule { height: 1px; background: var(--border); margin-bottom: 20px; }
[data-design="a"] .rf-footer__sign { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
[data-design="a"] .rf-footer__name { font: 500 14px/1 var(--font-mono); letter-spacing: 0.08em; color: var(--ink); }
[data-design="a"] .rf-footer__dot { width: 8px; height: 8px; border-radius: var(--r-round); background: var(--success); flex: 0 0 auto; }
[data-design="a"] .rf-footer__copy { font: 400 13px/1.5 var(--font-body); color: var(--muted); }

/* ===================== REDUCED MOTION ===================== */
@media (prefers-reduced-motion: reduce) {
  [data-design="a"] .rf-header__regmark { animation: none; transform: translateX(50vw); opacity: 1; }
  [data-design="a"] .rf-cta { animation: none; }
  [data-design="a"] .rf-cta:hover { transform: none; }
  [data-design="a"] .rf-hero__backdrop::before { animation: none; }
  [data-design="a"] .rf-draft__elev,
  [data-design="a"] .rf-draft__dim,
  [data-design="a"] .rf-draft__node { animation: none; stroke-dashoffset: 0; opacity: 0.85; }
  [data-design="a"] .rf-draft__dim { opacity: 0.7; }
  [data-design="a"] .rf-pointer__line::after { animation: none; left: 35%; }
  [data-design="a"] .rf-area__fill { transition: none; width: var(--rf-fill, 70%); }
  [data-design="a"] .rf-area.is-revealed .rf-area__fill::after { animation: none; }
  [data-design="a"] .rf-status__cursor { animation: none; opacity: 1; }
  [data-design="a"] .method-pointer__counter-now,
  [data-design="a"] .method-pointer__chev,
  [data-design="a"] .method-pointer__bar-fill { animation: none; transition: none; }
  [data-design="a"] .rf-funnel__panel.is-active { animation: none; }
  [data-design="a"] .rf-drawer__panel { animation: none; }
}

/* ===================== MOBILE NO-OVERFLOW GUARDS (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; }