/* ═══════════════════════════════════════════════════════════
   DESIGN-A · Art Roofing Plus · Tracciato remapped to [data-design="a"]
   All selectors scoped under [data-design="a"].
   All keyframes prefixed: a-tracciato-
   ~12 root tokens exposed on [data-design="a"] block.
   ═══════════════════════════════════════════════════════════ */

/* ── TOKEN BLOCK ── */
[data-design="a"] {
  /* colour */
  --design-a-primary:   #0F4C5C;  /* ottanio — the signature accent */
  --paper:              #F4EFE6;
  --paper-deep:         #ECE5D6;
  --marmo:              #FCFAF4;
  --ink:                #1C1B1A;
  --ink-soft:           #3E3A35;
  --pencil:             #736B5F;
  --pencil-trace:       #B6AC9C;
  --ottanio:            #0F4C5C;
  --ottanio-deep:       #0A3742;
  --ottone:             #A47148;
  --ottone-warm:        #C99767;
  --rule:               #D8CFBE;
  --critical:           #7C2A1A;
  --success:            #3E5C32;
  /* typography */
  --font-display:       "Cormorant Garamond", "EB Garamond", Georgia, serif;
  --font-body:          "Cormorant Garamond", "EB Garamond", Georgia, serif;
  --font-annotation:    "JetBrains Mono", ui-monospace, "Menlo", monospace;
  --t-mono-xs:          clamp(10px, 0.65vw + 8px, 12px);
  --t-mono-sm:          clamp(12px, 0.8vw + 10px, 14px);
  --t-body:             clamp(16px, 0.4vw + 14px, 19px);
  --t-lead:             clamp(19px, 0.7vw + 16px, 24px);
  --t-h3:               clamp(22px, 1.0vw + 18px, 30px);
  --t-h2:               clamp(30px, 2.2vw + 18px, 56px);
  --t-h1:               clamp(44px, 4.5vw + 22px, 96px);
  /* spacing */
  --gap-hairline: 4px;
  --gap-tick:     8px;
  --gap-line:     12px;
  --gap-stanza:   20px;
  --gap-cell:     32px;
  --gap-rule:     48px;
  --gap-bay:      80px;
  --gap-court:    128px;
  --measure:      66ch;
  /* motion */
  --dur-trace:    1200ms;
  --dur-settle:   420ms;
  --dur-stamp:    180ms;
  --dur-register: 600ms;
  --dur-breath:   4500ms;
  --ease-pen:     cubic-bezier(0.65, 0, 0.35, 1);
  --ease-settle:  cubic-bezier(0.16, 1, 0.3, 1);
  --ease-stamp:   cubic-bezier(0.5, 0, 0.85, 0.4);
  --ease-vellum:  cubic-bezier(0.4, 0, 0.6, 1);
  /* radius */
  --r-none:  0;
  --r-tick:  1px;
  --r-input: 2px;
  --r-stamp: 3px;
  --r-mark:  50%;
  /* lift */
  --lift-vellum: 1px 2px 0 var(--ottone-warm);
  --lift-press:  inset 0 1px 0 var(--ottanio-deep);

  box-sizing: border-box;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--t-body);
  line-height: 1.6;
}

/* box-sizing reset */
[data-design="a"] *,
[data-design="a"] *::before,
[data-design="a"] *::after { box-sizing: border-box; }

/* ── E1 HEADER ── */
[data-design="a"] .rf-header,
[data-design="a"].rf-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
}
[data-design="a"] .rf-header__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  padding: 0 clamp(16px, 4vw, 48px);
  position: relative;
  z-index: 2;
}
[data-design="a"] .rf-logo {
  font-family: var(--font-display);
  font-size: clamp(20px, 1.4vw + 14px, 26px);
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: none;
  font-weight: 500;
  line-height: 1;
}
[data-design="a"] .rf-logo__mark { display: inline-block; }
[data-design="a"] .rf-hamburger {
  appearance: none;
  background: transparent;
  border: 1px solid var(--rule);
  border-radius: var(--r-tick);
  width: 44px;
  height: 44px;
  padding: 10px 10px;
  display: inline-flex;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
  transition: border-color var(--dur-stamp) var(--ease-stamp);
}
[data-design="a"] .rf-hamburger:hover { border-color: var(--ink); }
[data-design="a"] .rf-hamburger:focus-visible { outline: 2px solid var(--ottanio); outline-offset: 2px; }
[data-design="a"] .rf-hamburger__rule { display: block; height: 1px; background: var(--ink); }
[data-design="a"] .rf-hamburger__rule:nth-child(2) { width: 75%; }
[data-design="a"] .rf-hamburger__rule:nth-child(3) { width: 90%; }

/* E1 atmospheric dimension string */
[data-design="a"] .rf-dimstring {
  position: absolute;
  left: clamp(16px, 4vw, 48px);
  right: clamp(16px, 4vw, 48px);
  bottom: -1px;
  height: 14px;
  display: flex;
  align-items: center;
  gap: 6px;
  pointer-events: none;
  font-family: var(--font-annotation);
  font-size: var(--t-mono-xs);
  color: var(--ottone);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
[data-design="a"] .rf-dimstring__line {
  flex: 1 1 auto;
  height: 1px;
  background: var(--ottone);
  transform-origin: left center;
  transform: scaleX(0);
  animation: a-tracciato-dim-extend 23s var(--ease-pen) infinite;
}
[data-design="a"] .rf-dimstring__line:nth-of-type(2) {
  transform-origin: right center;
  animation-name: a-tracciato-dim-extend-rev;
  animation-delay: 0.3s;
}
[data-design="a"] .rf-dimstring__value {
  opacity: 0;
  white-space: nowrap;
  animation: a-tracciato-dim-value 23s var(--ease-pen) infinite;
}
[data-design="a"] .rf-dimstring__tick {
  width: 8px; height: 8px;
  border: 1px solid var(--ottone);
  border-radius: var(--r-mark);
  background: var(--paper);
  opacity: 0;
  animation: a-tracciato-dim-tick 23s var(--ease-pen) infinite;
}
[data-design="a"] .rf-dimstring__tick--end { animation-delay: 11.5s; }
@keyframes a-tracciato-dim-extend {
  0%   { transform: scaleX(0); }
  18%  { transform: scaleX(1); }
  72%  { transform: scaleX(1); opacity: 1; }
  92%  { transform: scaleX(1); opacity: 0; }
  100% { transform: scaleX(0); opacity: 0; }
}
@keyframes a-tracciato-dim-extend-rev {
  0%   { transform: scaleX(0); }
  18%  { transform: scaleX(1); }
  72%  { transform: scaleX(1); opacity: 1; }
  92%  { transform: scaleX(1); opacity: 0; }
  100% { transform: scaleX(0); opacity: 0; }
}
@keyframes a-tracciato-dim-value {
  0%, 22%   { opacity: 0; }
  30%, 70%  { opacity: 1; }
  90%, 100% { opacity: 0; }
}
@keyframes a-tracciato-dim-tick {
  0%, 12% { opacity: 0; }
  22%     { opacity: 1; }
  88%     { opacity: 1; }
  96%     { opacity: 0; }
}

/* Drawer */
[data-design="a"] .rf-drawer {
  position: fixed;
  inset: 0 0 0 auto;
  width: min(360px, 88vw);
  background: var(--marmo);
  border-left: 1px solid var(--ink);
  padding: 80px 32px 32px;
  z-index: 50;
  transform: translateX(100%);
  transition: transform var(--dur-register) var(--ease-settle);
  overflow-y: auto;
}
[data-design="a"] .rf-drawer[data-open="true"] { transform: translateX(0); }
[data-design="a"] .rf-drawer__pin {
  position: absolute;
  left: 12px;
  width: 8px; height: 8px;
  border-radius: var(--r-mark);
  background: var(--ottone-warm);
  box-shadow: 0 0 0 1px var(--ottone) inset;
}
[data-design="a"] .rf-drawer__pin--top    { top: 16px; }
[data-design="a"] .rf-drawer__pin--bottom { bottom: 16px; }
[data-design="a"] .rf-drawer__close {
  position: absolute;
  top: 14px; right: 18px;
  background: transparent;
  border: 0;
  font-size: 28px;
  line-height: 1;
  color: var(--ink);
  cursor: pointer;
  padding: 8px;
  min-width: 44px; min-height: 44px;
}
[data-design="a"] .rf-nav { display: flex; flex-direction: column; gap: var(--gap-stanza); margin-bottom: var(--gap-rule); }
[data-design="a"] .rf-nav__link {
  font-family: var(--font-display);
  font-size: var(--t-h3);
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
  padding-bottom: var(--gap-tick);
  transition: color var(--dur-stamp) var(--ease-stamp), border-color var(--dur-stamp) var(--ease-stamp);
  min-height: 44px;
  display: flex;
  align-items: flex-end;
}
[data-design="a"] .rf-nav__link:hover { color: var(--ottanio); border-color: var(--ottanio); }
[data-design="a"] .rf-drawer__ctas { display: flex; flex-direction: column; gap: var(--gap-line); margin-top: var(--gap-stanza); }
[data-design="a"] .rf-drawer-cta {
  display: block;
  text-decoration: none;
  padding: 14px 18px;
  font-family: var(--font-annotation);
  font-size: var(--t-mono-sm);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  min-height: 44px;
}
[data-design="a"] .rf-drawer-cta--primary {
  background: var(--ottanio);
  color: var(--marmo);
  border-radius: var(--r-stamp);
}
[data-design="a"] .rf-drawer-cta--phone {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--rule);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
[data-design="a"] .rf-drawer-cta__label { font-size: 10px; color: var(--pencil); letter-spacing: 0.14em; }
[data-design="a"] .rf-drawer-cta__num { font-size: var(--t-mono-sm); color: var(--ink); }

/* ── HERO (E3 backdrop + text + E2 CTA) ── */
[data-design="a"] .rf-hero {
  position: relative;
  min-height: clamp(520px, 72vh, 800px);
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: 1fr auto;
  align-items: center;
  overflow: hidden;
  padding: clamp(80px, 10vw, 128px) clamp(16px, 5vw, 64px) clamp(64px, 8vw, 96px);
  background: var(--ink);
}
[data-design="a"] .rf-hero__backdrop {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
[data-design="a"] .rf-hero__wash {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, #1C2B30 0%, #1C1B1A 55%, #0A1F26 100%);
  animation: a-tracciato-hero-wash 9s var(--ease-vellum) infinite alternate;
}
@keyframes a-tracciato-hero-wash {
  0%   { background: linear-gradient(160deg, #1C2B30 0%, #1C1B1A 55%, #0A1F26 100%); }
  100% { background: linear-gradient(160deg, #0A1F26 0%, #1C2B30 55%, #1C1B1A 100%); }
}
[data-design="a"] .rf-hero__svg {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
}

/* Ridge draws across on load */
[data-design="a"] .rf-hero__ridge {
  animation: a-tracciato-ridge-draw 2.2s var(--ease-pen) forwards;
}
@keyframes a-tracciato-ridge-draw {
  from { stroke-dashoffset: 1040; }
  to   { stroke-dashoffset: 0; }
}

/* Courses settle in, staggered; then sustain slow ambient pulse */
[data-design="a"] .rf-hero__course {
  stroke-dasharray: 1440;
  stroke-dashoffset: 1440;
  animation: a-tracciato-course-in 1.8s var(--ease-pen) forwards,
             a-tracciato-course-pulse 8s ease-in-out infinite 2.5s;
}
[data-design="a"] .rf-hero__course--1 { animation-delay: 0.3s, 2.5s; }
[data-design="a"] .rf-hero__course--2 { animation-delay: 0.55s, 2.5s; }
[data-design="a"] .rf-hero__course--3 { animation-delay: 0.80s, 2.5s; }
[data-design="a"] .rf-hero__course--4 { animation-delay: 1.05s, 2.5s; }
[data-design="a"] .rf-hero__course--5 { animation-delay: 1.30s, 2.5s; }
[data-design="a"] .rf-hero__course--6 { animation-delay: 1.55s, 2.5s; }
@keyframes a-tracciato-course-in {
  from { stroke-dashoffset: 1440; }
  to   { stroke-dashoffset: 0; }
}
@keyframes a-tracciato-course-pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.55; }
}

/* Rake lines slow ambient shimmer */
[data-design="a"] .rf-hero__rake {
  animation: a-tracciato-rake-pulse 11s ease-in-out infinite;
}
[data-design="a"] .rf-hero__rake--r { animation-delay: -5.5s; }
@keyframes a-tracciato-rake-pulse {
  0%, 100% { stroke-opacity: 0.55; }
  50%      { stroke-opacity: 0.25; }
}

/* Hero content — ALL text opacity:1 at first paint */
[data-design="a"] .rf-hero__content {
  position: relative;
  z-index: 2;
  max-width: 760px;
}
[data-design="a"] .rf-hero__eyebrow {
  font-family: var(--font-annotation);
  font-size: var(--t-mono-xs);
  color: var(--ottone-warm);
  text-transform: uppercase;
  letter-spacing: 0.22em;
  margin: 0 0 var(--gap-stanza);
  opacity: 1;
}
[data-design="a"] .rf-hero__title {
  font-family: var(--font-display);
  font-size: var(--t-h1);
  letter-spacing: -0.01em;
  color: var(--marmo);
  line-height: 1.05;
  margin: 0 0 var(--gap-stanza);
  max-width: 18ch;
  opacity: 1;
}
[data-design="a"] .rf-hero__sub {
  font-family: var(--font-body);
  font-size: var(--t-lead);
  color: var(--pencil-trace);
  line-height: 1.5;
  margin: 0 0 var(--gap-line);
  max-width: var(--measure);
  opacity: 1;
}
[data-design="a"] .rf-hero__proof {
  font-family: var(--font-annotation);
  font-size: var(--t-mono-xs);
  color: var(--ottone);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin: 0 0 var(--gap-rule);
  opacity: 1;
}

/* E2 CTA block */
[data-design="a"] .rf-hero__ctas {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: clamp(12px, 2vw, 24px);
}
[data-design="a"] .rf-cta--phone-hero {
  font-family: var(--font-annotation);
  font-size: var(--t-mono-sm);
  color: var(--pencil-trace);
  letter-spacing: 0.14em;
  text-decoration: none;
  padding: 10px 0;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  border-bottom: 1px solid var(--pencil-trace);
  transition: color var(--dur-stamp) var(--ease-stamp), border-color var(--dur-stamp) var(--ease-stamp);
}
[data-design="a"] .rf-cta--phone-hero:hover { color: var(--ottone-warm); border-color: var(--ottone-warm); }

/* Hero title-block annotation (right panel) */
[data-design="a"] .rf-hero__titleblock {
  position: relative;
  z-index: 2;
  margin-top: clamp(32px, 4vw, 48px);
  border: 1px solid var(--rule);
  padding: 16px 20px;
  max-width: 360px;
  background: rgba(28, 27, 26, 0.55);
}
[data-design="a"] .rf-titleblock__row {
  display: flex;
  gap: 12px;
  padding: 6px 0;
  border-bottom: 1px solid rgba(216, 207, 190, 0.2);
  font-family: var(--font-annotation);
  font-size: var(--t-mono-xs);
  letter-spacing: 0.14em;
}
[data-design="a"] .rf-titleblock__row:last-child { border-bottom: 0; }
[data-design="a"] .rf-titleblock__key { color: var(--pencil); text-transform: uppercase; flex: 0 0 auto; }
[data-design="a"] .rf-titleblock__val { color: var(--pencil-trace); }

@media (min-width: 900px) {
  [data-design="a"] .rf-hero {
    grid-template-columns: 1fr auto;
    grid-template-rows: 1fr;
    align-items: end;
    padding-bottom: clamp(64px, 8vw, 96px);
  }
  [data-design="a"] .rf-hero__titleblock {
    margin-top: 0;
    align-self: end;
  }
}

/* ── E2 CTA STAMP (shared) ── */
[data-design="a"] .rf-cta {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--gap-tick);
  padding: 14px 22px;
  background: var(--ottanio);
  color: var(--marmo);
  font-family: var(--font-annotation);
  font-size: var(--t-mono-sm);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  text-decoration: none;
  border-radius: var(--r-stamp);
  isolation: isolate;
  min-height: 44px;
  transition:
    background-color var(--dur-stamp) var(--ease-stamp),
    transform var(--dur-stamp) var(--ease-stamp);
  animation: a-tracciato-cta-breath var(--dur-breath) ease-in-out infinite;
}
[data-design="a"] .rf-cta__label { line-height: 1; }
[data-design="a"] .rf-cta__arrow {
  display: inline-flex;
  color: var(--ottone-warm);
  transform: translateX(0);
  transition: transform var(--dur-settle) var(--ease-pen);
}
[data-design="a"] .rf-cta__corner {
  position: absolute;
  width: 14px; height: 14px;
  border: 1.5px solid var(--ottone);
  pointer-events: none;
  transition:
    transform var(--dur-register) var(--ease-pen),
    border-color var(--dur-stamp) var(--ease-stamp);
}
[data-design="a"] .rf-cta__corner--tl { top: -10px; left: -10px; border-right: 0; border-bottom: 0; transform: translate(-2px, -2px); }
[data-design="a"] .rf-cta__corner--br { bottom: -10px; right: -10px; border-left: 0; border-top: 0; transform: translate(2px, 2px); }
[data-design="a"] .rf-cta:hover .rf-cta__corner--tl,
[data-design="a"] .rf-cta:focus-visible .rf-cta__corner--tl { transform: translate(0, 0); border-color: var(--ottone-warm); }
[data-design="a"] .rf-cta:hover .rf-cta__corner--br,
[data-design="a"] .rf-cta:focus-visible .rf-cta__corner--br { transform: translate(0, 0); border-color: var(--ottone-warm); }
[data-design="a"] .rf-cta:hover .rf-cta__arrow,
[data-design="a"] .rf-cta:focus-visible .rf-cta__arrow { transform: translateX(6px); }
[data-design="a"] .rf-cta:hover,
[data-design="a"] .rf-cta:focus-visible { outline: none; background: var(--ottanio); }
[data-design="a"] .rf-cta:active {
  background: var(--ottanio-deep);
  transform: translateY(1px);
  box-shadow: var(--lift-press);
}
@keyframes a-tracciato-cta-breath {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-1px); }
}

/* ── E6 POINTER ── */
[data-design="a"] .rf-pointer {
  display: flex;
  justify-content: center;
  padding: clamp(40px, 8vw, 80px) 16px clamp(56px, 10vw, 96px);
  background: var(--paper);
  /* Pointer MUST be visible — explicit opacity + min-height */
  opacity: 1;
  min-height: 120px;
  color: var(--ottanio);
}
[data-design="a"] .tracciato-pointer__hit {
  position: relative;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: currentColor;
}
[data-design="a"] .tracciato-pointer__tick {
  display: block;
  width: 16px; height: 1px;
  background: currentColor;
  opacity: 0.7;
  min-height: 1px;
}
[data-design="a"] .tracciato-pointer__rule {
  display: block;
  width: 1px;
  height: 56px;
  background: currentColor;
  transform-origin: top center;
  animation: a-tracciato-pointer-extend 5s ease-in-out infinite;
}
[data-design="a"] .tracciato-pointer__label {
  font-family: var(--font-annotation);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  opacity: 0;
  animation: a-tracciato-pointer-stamp 5s ease-in-out infinite;
}
@keyframes a-tracciato-pointer-extend {
  0%, 100% { transform: scaleY(0.4); opacity: 0.4; }
  50%      { transform: scaleY(1);   opacity: 0.85; }
}
@keyframes a-tracciato-pointer-stamp {
  0%, 30%, 100% { opacity: 0; }
  50%, 70%      { opacity: 0.85; }
}

/* ── E5 FUNNEL (5-step drafting register) ── */
[data-design="a"] .rf-interactive {
  padding: clamp(64px, 10vw, 128px) clamp(16px, 4vw, 48px);
  background: var(--paper-deep);
  display: grid;
  gap: var(--gap-rule);
}
[data-design="a"] .rf-funnel__head { max-width: var(--measure); }
[data-design="a"] .rf-eyebrow {
  font-family: var(--font-annotation);
  font-size: var(--t-mono-sm);
  color: var(--ottone);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  margin: 0 0 var(--gap-tick);
}
[data-design="a"] .rf-h2 {
  font-family: var(--font-display);
  font-size: var(--t-h2);
  letter-spacing: -0.01em;
  color: var(--ink);
  line-height: 1.05;
  margin: 0 0 var(--gap-line);
}
[data-design="a"] .rf-lede {
  font-family: var(--font-body);
  font-size: var(--t-lead);
  color: var(--ink-soft);
  line-height: 1.5;
  margin: 0;
}
[data-design="a"] .rf-funnel {
  max-width: 720px;
  margin-inline: auto;
  width: 100%;
}
[data-design="a"] .rf-funnel__progress {
  display: flex;
  align-items: center;
  gap: var(--gap-cell);
  margin-bottom: var(--gap-rule);
  font-family: var(--font-annotation);
  font-size: var(--t-mono-sm);
  color: var(--ottone);
  text-transform: uppercase;
  letter-spacing: 0.18em;
}
[data-design="a"] .rf-funnel__progress-line {
  flex: 1 1 auto;
  height: 1px;
  background: var(--rule);
  position: relative;
  overflow: hidden;
}
[data-design="a"] .rf-funnel__progress-fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 20%;
  background: var(--ottone);
  transform-origin: left center;
  transition: width var(--dur-trace) var(--ease-pen);
}
[data-design="a"] .rf-funnel__plate {
  position: relative;
  background: var(--marmo);
  border: 1px solid var(--ink);
  padding: clamp(20px, 3vw, 40px);
  min-height: 360px;
  isolation: isolate;
}
[data-design="a"] .rf-funnel__plate::before,
[data-design="a"] .rf-funnel__plate::after {
  content: "";
  position: absolute;
  width: 8px; height: 8px;
  background: var(--ottone-warm);
  border: 1px solid var(--ottone);
  border-radius: var(--r-mark);
}
[data-design="a"] .rf-funnel__plate::before { top: 10px; left: 10px; }
[data-design="a"] .rf-funnel__plate::after  { bottom: 10px; right: 10px; }
[data-design="a"] .rf-funnel__step {
  border: 0; padding: 0; margin: 0;
  display: none;
  opacity: 0;
  transform: translateY(8px);
  transition:
    opacity var(--dur-settle) var(--ease-settle),
    transform var(--dur-settle) var(--ease-settle);
}
[data-design="a"] .rf-funnel__step[data-active="true"] { display: block; }
[data-design="a"] .rf-funnel__step.is-settled { opacity: 1; transform: translateY(0); }
[data-design="a"] .rf-funnel__legend {
  font-family: var(--font-display);
  font-size: var(--t-h3);
  letter-spacing: -0.01em;
  color: var(--ink);
  margin-bottom: var(--gap-stanza);
}
[data-design="a"] .rf-funnel__choices {
  display: grid;
  gap: var(--gap-tick);
  margin-bottom: var(--gap-cell);
}
[data-design="a"] .rf-choice {
  display: flex;
  align-items: center;
  gap: var(--gap-tick);
  padding: 14px 18px;
  border: 1px solid var(--rule);
  background: var(--paper);
  cursor: pointer;
  font-family: var(--font-body);
  font-size: var(--t-body);
  color: var(--ink);
  transition:
    border-color var(--dur-stamp) var(--ease-stamp),
    background-color var(--dur-stamp) var(--ease-stamp);
  min-height: 44px;
}
[data-design="a"] .rf-choice:hover { border-color: var(--ink); }
[data-design="a"] .rf-choice input[type="radio"] {
  appearance: none;
  width: 14px; height: 14px;
  border: 1px solid var(--ink);
  background: var(--marmo);
  border-radius: var(--r-mark);
  margin: 0;
  flex-shrink: 0;
  cursor: pointer;
}
[data-design="a"] .rf-choice input:checked { background: var(--ottanio); border-color: var(--ottanio); box-shadow: inset 0 0 0 2px var(--marmo); }
[data-design="a"] .rf-choice:has(input:checked) {
  border-color: var(--ink);
  background: var(--paper-deep);
  box-shadow: inset 0 -2px 0 var(--ottanio);
}
[data-design="a"] .rf-funnel__note {
  font-family: var(--font-annotation);
  font-size: var(--t-mono-sm);
  color: var(--ottanio);
  border: 1px solid var(--ottanio);
  padding: 10px 14px;
  margin-bottom: var(--gap-stanza);
}
[data-design="a"] .rf-funnel__tel { color: var(--ottanio); }
[data-design="a"] .rf-funnel__field {
  display: grid;
  gap: var(--gap-tick);
  margin-bottom: var(--gap-stanza);
}
[data-design="a"] .rf-funnel__label {
  font-family: var(--font-annotation);
  font-size: var(--t-mono-sm);
  color: var(--pencil);
  text-transform: uppercase;
  letter-spacing: 0.18em;
}
[data-design="a"] .rf-funnel__req { font-style: normal; color: var(--critical); }
[data-design="a"] .rf-funnel__input,
[data-design="a"] .rf-funnel__textarea {
  width: 100%;
  background: var(--paper);
  border: 0;
  border-bottom: 1px solid var(--ink);
  border-radius: 0;
  padding: 10px 4px;
  font-family: var(--font-body);
  font-size: var(--t-body);
  color: var(--ink);
  outline: none;
  transition:
    border-color var(--dur-stamp) var(--ease-stamp),
    border-width var(--dur-stamp) var(--ease-stamp);
}
[data-design="a"] .rf-funnel__input:focus,
[data-design="a"] .rf-funnel__textarea:focus { border-bottom: 2px solid var(--ottanio); padding-bottom: 9px; }
[data-design="a"] .rf-funnel__nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--gap-tick);
  margin-top: var(--gap-cell);
  padding-top: var(--gap-stanza);
  border-top: 1px solid var(--rule);
}
[data-design="a"] .rf-funnel__btn {
  appearance: none;
  font-family: var(--font-annotation);
  font-size: var(--t-mono-sm);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  padding: 12px 22px;
  border-radius: var(--r-stamp);
  cursor: pointer;
  min-height: 44px;
  min-width: 44px;
  transition:
    background-color var(--dur-stamp) var(--ease-stamp),
    color var(--dur-stamp) var(--ease-stamp),
    border-color var(--dur-stamp) var(--ease-stamp),
    transform var(--dur-stamp) var(--ease-stamp);
}
[data-design="a"] .rf-funnel__btn--primary { background: var(--ottanio); color: var(--marmo); border: 1px solid var(--ottanio); }
[data-design="a"] .rf-funnel__btn--primary:hover { background: var(--ottanio-deep); }
[data-design="a"] .rf-funnel__btn--primary:active { transform: translateY(1px); }
[data-design="a"] .rf-funnel__btn--ghost { background: transparent; color: var(--ink); border: 1px solid var(--ink); }
[data-design="a"] .rf-funnel__btn--ghost:hover { background: var(--paper-deep); }
[data-design="a"] .rf-funnel__btn:disabled { color: var(--pencil-trace); border-color: var(--pencil-trace); cursor: not-allowed; }
[data-design="a"] .rf-funnel__btn:focus-visible { outline: 2px solid var(--ottanio); outline-offset: 2px; }
/* Done */
[data-design="a"] .rf-funnel__step--done { text-align: center; }
[data-design="a"] .rf-funnel__stamp {
  display: inline-flex; align-items: center; justify-content: center;
  margin: var(--gap-cell) auto var(--gap-stanza);
  padding: 14px 28px;
  border: 2px solid var(--ottanio);
  color: var(--ottanio);
  font-family: var(--font-annotation);
  font-size: var(--t-mono-sm);
  text-transform: uppercase;
  letter-spacing: 0.24em;
  transform: rotate(-3deg);
  background: var(--marmo);
  position: relative;
}
[data-design="a"] .rf-funnel__done-copy {
  font-family: var(--font-body);
  font-size: var(--t-lead);
  color: var(--ink-soft);
  margin: 0 auto;
  max-width: var(--measure);
}
[data-design="a"] .rf-funnel__trust {
  margin-top: var(--gap-cell);
  padding-top: var(--gap-stanza);
  border-top: 1px solid var(--rule);
  max-width: var(--measure);
}
[data-design="a"] .rf-funnel__trust-line {
  font-family: var(--font-annotation);
  font-size: var(--t-mono-xs);
  color: var(--pencil);
  letter-spacing: 0.14em;
  margin: 0 0 var(--gap-tick);
}

/* ── E3 AMBIENT A (services section-cut) ── */
[data-design="a"] .rf-ambient-a {
  padding: clamp(64px, 10vw, 128px) clamp(16px, 4vw, 48px);
  background: var(--paper);
  display: grid;
  gap: var(--gap-rule);
  grid-template-columns: minmax(0, 1fr);
}
@media (min-width: 900px) {
  [data-design="a"] .rf-ambient-a {
    grid-template-columns: 320px minmax(0, 1fr);
    align-items: start;
  }
}
[data-design="a"] .rf-ambient-a__head { max-width: var(--measure); }
[data-design="a"] .rf-detail {
  position: relative;
  margin: 0;
  padding: 24px;
  background: var(--marmo);
  border: 1px solid var(--ink);
  max-width: 100%;
}
[data-design="a"] .rf-detail__drawing { width: 100%; height: auto; max-width: 100%; display: block; }
[data-design="a"] .rf-callout {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-annotation);
  font-size: var(--t-mono-xs);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--ink);
  opacity: 0;
  transition: opacity var(--dur-trace) var(--ease-pen) calc(var(--rf-cb-delay, 0) * 1ms);
}
[data-design="a"] .rf-callout__leader {
  display: block;
  height: 1px;
  background: var(--ottone);
  width: 0;
  transition: width var(--dur-trace) var(--ease-pen) calc(var(--rf-cb-delay, 0) * 1ms);
}
[data-design="a"] .rf-callout__pill {
  white-space: nowrap;
  padding: 2px 8px;
  background: var(--marmo);
  border: 1px solid var(--ink);
  border-radius: var(--r-tick);
}
[data-design="a"] .rf-callout--01 { top: 6%;    left: 4%;  --rf-cb-delay: 0;   }
[data-design="a"] .rf-callout--02 { top: 26%;   right: 4%; --rf-cb-delay: 220; flex-direction: row-reverse; }
[data-design="a"] .rf-callout--03 { top: 50%;   left: 4%;  --rf-cb-delay: 440; }
[data-design="a"] .rf-callout--04 { bottom: 18%;right: 4%; --rf-cb-delay: 660; flex-direction: row-reverse; }
[data-design="a"] .rf-callout--05 { bottom: 2%; left: 4%;  --rf-cb-delay: 880; }
[data-design="a"] .rf-callout--02 .rf-callout__leader,
[data-design="a"] .rf-callout--04 .rf-callout__leader { transform-origin: right center; }
[data-design="a"] .rf-detail.is-traced .rf-callout { opacity: 1; }
[data-design="a"] .rf-detail.is-traced .rf-callout__leader { width: 80px; }
[data-design="a"] .rf-detail.is-traced .rf-callout--03 .rf-callout__pill {
  animation: a-tracciato-callout-confirm 14s var(--ease-vellum) infinite;
}
@keyframes a-tracciato-callout-confirm {
  0%, 88%   { background: var(--marmo); color: var(--ink); }
  92%       { background: var(--ottanio); color: var(--marmo); }
  100%      { background: var(--marmo); color: var(--ink); }
}

/* ── E4 AMBIENT B (vellum drift / portfolio) ── */
[data-design="a"] .rf-ambient-b {
  padding: clamp(64px, 10vw, 128px) clamp(16px, 4vw, 48px);
  background: var(--paper-deep);
  display: grid;
  gap: var(--gap-rule);
}
[data-design="a"] .rf-ambient-b__head { max-width: var(--measure); }
[data-design="a"] .rf-vellum-stack {
  position: relative;
  width: 100%;
  max-width: 880px;
  margin: 0 auto;
  aspect-ratio: 4 / 3;
  isolation: isolate;
}
[data-design="a"] .rf-vellum {
  position: absolute;
  inset: 0;
  border: 1px solid var(--ink);
}
[data-design="a"] .rf-vellum--plate {
  background: var(--ink);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
/* Typography plate in lieu of photography (photo_substrate:low) */
[data-design="a"] .rf-vellum__typography-plate {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  pointer-events: none;
}
[data-design="a"] .rf-vellum__plate-year {
  font-family: var(--font-annotation);
  font-size: clamp(32px, 5vw, 72px);
  color: var(--ottone);
  letter-spacing: 0.1em;
}
[data-design="a"] .rf-vellum__plate-city {
  font-family: var(--font-display);
  font-size: clamp(48px, 8vw, 120px);
  color: var(--pencil-trace);
  letter-spacing: -0.02em;
  line-height: 1;
}
[data-design="a"] .rf-vellum--sheet {
  background: rgba(244, 239, 230, 0.55);
  mix-blend-mode: multiply;
  display: flex;
  align-items: flex-end;
  padding: 18px 22px;
}
[data-design="a"] .rf-vellum--sheet::before {
  content: "";
  position: absolute;
  inset: 6px;
  border: 1px dashed var(--pencil-trace);
  pointer-events: none;
}
[data-design="a"] .rf-vellum__label {
  font-family: var(--font-annotation);
  font-size: var(--t-mono-sm);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--ink);
  background: var(--marmo);
  padding: 4px 10px;
  border: 1px solid var(--ink);
}
[data-design="a"] .rf-vellum--01 { animation: a-tracciato-vellum-1 16s var(--ease-vellum) infinite; }
[data-design="a"] .rf-vellum--02 { animation: a-tracciato-vellum-2 19s var(--ease-vellum) infinite; animation-delay: -3s; }
[data-design="a"] .rf-vellum--03 { animation: a-tracciato-vellum-3 23s var(--ease-vellum) infinite; animation-delay: -7s; }
@keyframes a-tracciato-vellum-1 {
  0%, 100% { transform: translate(-3%, -2%) rotate(-0.6deg); opacity: 0.85; }
  50%      { transform: translate(2%, 1%)   rotate(0.4deg);  opacity: 0.55; }
}
@keyframes a-tracciato-vellum-2 {
  0%, 100% { transform: translate(2%, 2%)  rotate(0.5deg);  opacity: 0.7; }
  50%      { transform: translate(-2%, -1%) rotate(-0.4deg); opacity: 0.95; }
}
@keyframes a-tracciato-vellum-3 {
  0%, 100% { transform: translate(0%, -1%) rotate(0.2deg);  opacity: 0.6; }
  50%      { transform: translate(1%, 2%)  rotate(-0.3deg); opacity: 0.85; }
}
[data-design="a"] .rf-vellum-stack[data-paused="true"] .rf-vellum--sheet { animation-play-state: paused; }
[data-design="a"] .rf-ambient-b__repeat-cta {
  display: flex;
  justify-content: flex-start;
  margin-top: var(--gap-bay);
}

/* ── PROCESS ── */
[data-design="a"] .rf-process {
  padding: clamp(64px, 10vw, 128px) clamp(16px, 4vw, 48px);
  background: var(--paper);
}
[data-design="a"] .rf-process__head { max-width: var(--measure); margin-bottom: var(--gap-rule); }
[data-design="a"] .rf-process__list {
  list-style: none;
  margin: 0; padding: 0;
  display: grid;
  gap: var(--gap-cell);
  max-width: 760px;
}
[data-design="a"] .rf-process__item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: var(--gap-stanza);
  padding-bottom: var(--gap-cell);
  border-bottom: 1px solid var(--rule);
}
[data-design="a"] .rf-process__num {
  font-family: var(--font-annotation);
  font-size: var(--t-mono-sm);
  color: var(--ottone);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding-top: 4px;
}
[data-design="a"] .rf-process__step-title {
  font-family: var(--font-display);
  font-size: var(--t-h3);
  color: var(--ink);
  margin: 0 0 var(--gap-tick);
}
[data-design="a"] .rf-process__step-body {
  font-family: var(--font-body);
  font-size: var(--t-body);
  color: var(--ink-soft);
  line-height: 1.6;
  margin: 0;
  max-width: 60ch;
}

/* ── ABOUT ── */
[data-design="a"] .rf-about {
  padding: clamp(64px, 10vw, 128px) clamp(16px, 4vw, 48px);
  background: var(--paper-deep);
}
[data-design="a"] .rf-about__text { max-width: var(--measure); }
[data-design="a"] .rf-about__body {
  font-family: var(--font-body);
  font-size: var(--t-body);
  color: var(--ink-soft);
  line-height: 1.65;
  margin: 0 0 var(--gap-stanza);
}
[data-design="a"] .rf-about__tel { color: var(--ottanio); text-decoration: none; border-bottom: 1px solid var(--ottanio); }

/* ── FOOTER ── */
[data-design="a"] .rf-footer {
  background: var(--ink);
  color: var(--pencil-trace);
  padding: clamp(40px, 6vw, 64px) clamp(16px, 4vw, 48px);
}
[data-design="a"] .rf-footer__inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--gap-cell);
  align-items: end;
}
[data-design="a"] .rf-footer__firm {
  font-family: var(--font-display);
  font-size: var(--t-h3);
  color: var(--marmo);
  margin: 0 0 var(--gap-tick);
}
[data-design="a"] .rf-footer__meta {
  font-family: var(--font-annotation);
  font-size: var(--t-mono-xs);
  color: var(--pencil);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  margin: 0 0 var(--gap-tick);
}
[data-design="a"] .rf-footer__phone {
  font-family: var(--font-annotation);
  font-size: var(--t-mono-sm);
  color: var(--ottone-warm);
  text-decoration: none;
  letter-spacing: 0.12em;
}
[data-design="a"] .rf-footer__center { text-align: center; }
[data-design="a"] .rf-footer__dimstring {
  font-family: var(--font-annotation);
  font-size: var(--t-mono-xs);
  color: var(--pencil);
  letter-spacing: 0.1em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
[data-design="a"] .rf-footer__right { text-align: right; }
[data-design="a"] .rf-footer__cta {
  display: inline-block;
  background: var(--ottanio);
  color: var(--marmo);
  text-decoration: none;
  padding: 12px 20px;
  font-family: var(--font-annotation);
  font-size: var(--t-mono-sm);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  border-radius: var(--r-stamp);
  margin-bottom: var(--gap-stanza);
  min-height: 44px;
}
[data-design="a"] .rf-footer__copy {
  font-family: var(--font-annotation);
  font-size: var(--t-mono-xs);
  color: var(--pencil);
  letter-spacing: 0.12em;
  margin: 0;
}
@media (max-width: 640px) {
  [data-design="a"] .rf-footer__inner { grid-template-columns: 1fr; }
  [data-design="a"] .rf-footer__center { text-align: left; }
  [data-design="a"] .rf-footer__right { text-align: left; }
}

/* ═══════════════════════════════════════════════════════════
   REDUCED MOTION FALLBACKS — on every signature interaction
   ═══════════════════════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {
  /* E1 dim string */
  [data-design="a"] .rf-dimstring__line { animation: none; transform: scaleX(1); opacity: 1; }
  [data-design="a"] .rf-dimstring__value { animation: none; opacity: 1; }
  [data-design="a"] .rf-dimstring__tick { animation: none; opacity: 1; }
  [data-design="a"] .rf-drawer { transition: none; }
  /* E2 CTA */
  [data-design="a"] .rf-cta { animation: none; }
  [data-design="a"] .rf-cta__corner,
  [data-design="a"] .rf-cta__arrow { transition: none; }
  /* Hero */
  [data-design="a"] .rf-hero__wash { animation: none; }
  [data-design="a"] .rf-hero__ridge { animation: none; stroke-dashoffset: 0; }
  [data-design="a"] .rf-hero__course { animation: none; stroke-dashoffset: 0; opacity: 1; }
  [data-design="a"] .rf-hero__rake { animation: none; stroke-opacity: 0.55; }
  /* E6 pointer */
  [data-design="a"] .tracciato-pointer__rule { animation: none; opacity: 0.7; }
  [data-design="a"] .tracciato-pointer__label { animation: none; opacity: 0.7; }
  /* E3 callouts */
  [data-design="a"] .rf-callout,
  [data-design="a"] .rf-callout__leader { transition: none; opacity: 1; }
  [data-design="a"] .rf-callout__leader { width: 80px; }
  [data-design="a"] .rf-detail .rf-callout--03 .rf-callout__pill { animation: none; }
  /* E4 vellum */
  [data-design="a"] .rf-vellum--sheet { animation: none; }
  [data-design="a"] .rf-vellum--01 { transform: translate(-3%, -2%) rotate(-0.6deg); opacity: 0.7; }
  [data-design="a"] .rf-vellum--02 { transform: translate(2%, 1%) rotate(0.4deg); opacity: 0.7; }
  [data-design="a"] .rf-vellum--03 { transform: translate(0%, 0%) rotate(0deg); opacity: 0.7; }
  /* E5 funnel */
  [data-design="a"] .rf-funnel__step,
  [data-design="a"] .rf-funnel__progress-fill,
  [data-design="a"] .rf-funnel__input,
  [data-design="a"] .rf-funnel__textarea,
  [data-design="a"] .rf-funnel__btn,
  [data-design="a"] .rf-choice { transition: none; }
  [data-design="a"] .rf-funnel__step[data-active="true"] { opacity: 1; transform: none; }
}

/* ═══════════════════════════════════════════════════════════
   RESPONSIVE BREAKPOINTS
   ═══════════════════════════════════════════════════════════ */
@media (max-width: 560px) {
  [data-design="a"] .rf-header__bar { height: 56px; }
  [data-design="a"] .rf-dimstring__value { display: none; }
  [data-design="a"] .rf-logo { font-size: 18px; }
  [data-design="a"] .rf-vellum-stack { aspect-ratio: 1 / 1; }
  [data-design="a"] .rf-vellum__label { font-size: var(--t-mono-xs); }
  [data-design="a"] .rf-callout__leader { display: none; }
  [data-design="a"] .rf-callout--02,
  [data-design="a"] .rf-callout--04 { flex-direction: row; }
  [data-design="a"] .rf-funnel__progress { flex-direction: column; align-items: flex-start; gap: 6px; }
  [data-design="a"] .rf-funnel__progress-line { width: 100%; }
  [data-design="a"] .rf-funnel__nav { flex-direction: column-reverse; align-items: stretch; }
  [data-design="a"] .rf-funnel__btn { width: 100%; }
  [data-design="a"] .rf-hero__titleblock { display: none; }
  [data-design="a"] .rf-process__item { grid-template-columns: 40px 1fr; gap: 12px; }
}

/* ═══════════════════════════════════════════════════════════
   MANDATORY ANTI-HSCROLL GUARDS (must be last)
   ═══════════════════════════════════════════════════════════ */
[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; }