/* ═══════════════════════════════════════════════════════════════════
   Affordable Masonry · Design A (raking-light) · styles.css
   Slot: a  |  All selectors scoped to [data-design="a"].dq-design
   Motion gate: ONLY transform / opacity / clip-path animated.
   Hover/focus transforms inside @media (hover:hover) and (pointer:fine).
   No scale(0) from-nothing — entries from scale(0.96)/opacity:0.
   No layout props (width/height/padding/margin/top/left) animated.
   ═══════════════════════════════════════════════════════════════════ */

/* ── Google Fonts ─────────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Schibsted+Grotesk:wght@400;600;700&family=Hanken+Grotesk:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── Token system scoped to [data-design="a"] ─────────────────────── */
[data-design="a"] {
  --design-a-primary: #9A6E36;

  /* Ground & surface */
  --ground:        #F1ECE3;
  --ground-dk:     #181613;
  --surface:       #FAF6EE;
  --surface-dk:    #211E19;
  --surface-sunk:  #E5DDCE;

  /* Ink ramp */
  --ink:           #221F19;
  --ink-2:         #3A352B;
  --primary:       var(--ink);
  --muted:         #6E6656;
  --faint:         #968C78;

  /* Light↔shadow value engine */
  --shadow:        #8C8475;
  --secondary:     var(--shadow);
  --shadow-wash:   #C9C2B2;
  --light:         #F6E3BD;
  --light-wash:    #FBEFD2;

  /* Material tints */
  --stone:         #D9D0BE;
  --oak:           #C39A5E;
  --oak-deep:      #936B3A;

  /* Lines */
  --line:          #D8CDB8;
  --line-soft:     #E6DDCB;

  /* Accents — TWO maximum */
  --bronze:        #9A6E36;
  --bronze-dk:     #C79A53;
  --bronze-ink:    #FBF3E2;
  --slate:         #5C6B70;
  --accent:        var(--bronze);

  /* Semantic */
  --critical:      #A8412A;
  --success:       #5E6A3F;
  --warn:          #A87B33;

  /* Typography */
  --font-display: "Schibsted Grotesk", "Inter Tight", "Helvetica Neue", Arial, sans-serif;
  --font-body:    "Hanken Grotesk", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --font-mono:    "JetBrains Mono", "IBM Plex Mono", ui-monospace, Menlo, monospace;

  --t-meta:  12px;
  --t-cap:   14px;
  --t-body:  17px;
  --t-lead:  21px;
  --t-h3:    26px;
  --t-h2:    clamp(30px, 4.6vw, 46px);
  --t-h1:    clamp(38px, 7.4vw, 76px);

  --lh-body:  1.6;
  --lh-tight: 1.06;
  --track-display: -0.018em;
  --track-kicker:  0.16em;

  /* Spacing */
  --hairline:  4px;
  --trim:      8px;
  --pad:      16px;
  --stack:    24px;
  --bay:      40px;
  --room:     64px;
  --storey:   96px;
  --wing:    128px;

  /* Motion */
  --dur-touch: 150ms;
  --dur-lift:  420ms;
  --dur-rake:  720ms;
  --dur-swap:  1000ms;

  --ease-seat: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-rake: cubic-bezier(0.16, 0.84, 0.34, 1);
  --ease-draw: cubic-bezier(0.65, 0, 0.35, 1);

  --cyc-rake:   11s;
  --cyc-graze:  17s;
  --cyc-breath:  5s;

  /* Radius */
  --r-trim: 3px;
  --r-spec: 6px;
  --r-pill: 999px;

  /* Elevation (directional cast shadow — the raking-light identity) */
  --elev-flush:  inset 0 0 0 1px var(--line);
  --elev-lit:    inset 0 1px 0 0 color-mix(in oklab, var(--light) 70%, var(--surface)),
                 14px 18px 30px -22px rgba(34,31,25,0.50),
                 0 0 0 1px var(--line);
  --elev-seated: inset 0 2px 6px -2px rgba(34,31,25,0.30),
                 inset 0 0 0 1px var(--line);
  --elev-tray:   28px 40px 64px -34px rgba(34,31,25,0.58),
                 0 0 0 1px var(--line);

  /* Base */
  font-family: var(--font-body);
  font-size: var(--t-body);
  line-height: var(--lh-body);
  color: var(--ink);
  background: var(--ground);
  color-scheme: light dark;
}

/* ── Article root ─────────────────────────────────────────────────── */
[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;
}

/* ── Shared resets ────────────────────────────────────────────────── */
[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,
[data-design="a"].dq-design h4,[data-design="a"].dq-design p,[data-design="a"].dq-design ol,
[data-design="a"].dq-design ul,[data-design="a"].dq-design li,[data-design="a"].dq-design fieldset {
  margin: 0; padding: 0;
}
[data-design="a"].dq-design ol,[data-design="a"].dq-design ul { list-style: none; }
[data-design="a"].dq-design a { color: inherit; }
[data-design="a"].dq-design button { font-family: inherit; }

/* ═══════════════════════════════════════════════════════════════════
   ELEMENT 1 — Animated minimalist header
   ═══════════════════════════════════════════════════════════════════ */

[data-design="a"] .rk-header {
  position: sticky; top: 0; z-index: 60;
  /* Solid translucent fill — no backdrop-filter:blur() on sticky header over animating hero
     (re-blurs every frame behind HERO-1 animation → PERF-6 jank on mid-range Android) */
  background: color-mix(in oklab, var(--ground) 95%, transparent);
  border-bottom: 1px solid var(--line);
  overflow: clip;
}

[data-design="a"] .rk-header__bar {
  max-width: 1280px; margin-inline: auto;
  padding: var(--pad) clamp(16px, 4vw, 40px);
  display: flex; align-items: center; justify-content: space-between;
}

[data-design="a"] .rk-logo { text-decoration: none; }
[data-design="a"] .rk-logo__mark {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(17px, 2.2vw, 22px);
  letter-spacing: var(--track-display);
  color: var(--ink);
}

/* raking-light band across the header (atmospheric; ≥24s cycle per H-3) */
[data-design="a"] .rk-header__rake {
  position: absolute; inset: 0; pointer-events: none; opacity: 0.6;
  background: linear-gradient(100deg,
     transparent 0%,
     color-mix(in oklab, var(--shadow-wash) 30%, transparent) 30%,
     color-mix(in oklab, var(--light-wash) 75%, transparent) 50%,
     transparent 72%);
  background-size: 240% 100%;
  animation: rk-header-rake 24s ease-in-out infinite;
}

/* lit hairline draws in on first paint */
[data-design="a"] .rk-header__line {
  position: absolute; left: 0; bottom: 0; height: 2px; width: 100%;
  background: linear-gradient(90deg,
     transparent 0%, var(--bronze) 18%, var(--light) 52%, var(--bronze) 84%, transparent 100%);
  transform-origin: left center;
  transform: scaleX(0);
  animation: rk-line-draw var(--dur-rake) var(--ease-rake) 140ms forwards;
}

@keyframes rk-header-rake {
  0%   { background-position: 130% 0; opacity: 0.45; }
  50%  { background-position: -30% 0; opacity: 0.70; }
  100% { background-position: 130% 0; opacity: 0.45; }
}
@keyframes rk-line-draw { to { transform: scaleX(1); } }

/* hamburger */
[data-design="a"] .rk-burger {
  display: grid; gap: 5px;
  width: 44px; height: 44px; padding: 11px;
  background: transparent; border: 1px solid var(--line);
  border-radius: var(--r-trim); cursor: pointer;
}
[data-design="a"] .rk-burger span {
  height: 2px; background: var(--ink);
  transition: transform var(--dur-lift) var(--ease-seat),
              opacity var(--dur-touch) linear;
}
[data-design="a"] .rk-burger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
[data-design="a"] .rk-burger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
[data-design="a"] .rk-burger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Tray drawer — right-slide like a sample tray pulled out */
[data-design="a"] .rk-tray {
  position: fixed; inset: 0; z-index: 70; visibility: hidden;
}
[data-design="a"] .rk-tray[data-open="true"] { visibility: visible; }

[data-design="a"] .rk-tray__scrim {
  position: absolute; inset: 0;
  background: color-mix(in oklab, var(--ink) 38%, transparent);
  opacity: 0;
  transition: opacity var(--dur-rake) var(--ease-draw);
}
[data-design="a"] .rk-tray[data-open="true"] .rk-tray__scrim { opacity: 1; }

[data-design="a"] .rk-tray__panel {
  position: absolute; top: 0; right: 0; bottom: 0;
  width: min(420px, 86vw);
  background: var(--surface); box-shadow: var(--elev-tray);
  border-left: 2px solid var(--bronze);
  padding: clamp(24px, 6vw, 56px) clamp(20px, 5vw, 40px) var(--bay);
  transform: translateX(101%);
  transition: transform var(--dur-rake) var(--ease-rake);
  overflow-y: auto;
}
[data-design="a"] .rk-tray[data-open="true"] .rk-tray__panel {
  transform: translateX(0);
}

[data-design="a"] .rk-tray__x {
  position: absolute; top: 14px; right: 16px;
  width: 44px; height: 44px;
  font-size: 28px; line-height: 1;
  background: none; border: none; color: var(--ink); cursor: pointer;
  display: grid; place-items: center;
}

[data-design="a"] .rk-tray__nav {
  display: grid; gap: var(--stack); margin-block: var(--bay);
}
[data-design="a"] .rk-tray__nav a {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(24px, 6vw, 38px);
  color: var(--ink); text-decoration: none;
  display: flex; align-items: baseline; gap: var(--pad);
  border-bottom: 1px solid var(--line); padding-bottom: var(--trim);
}
[data-design="a"] .rk-tray__nav a i {
  font-family: var(--font-mono); font-style: normal;
  font-size: var(--t-meta); color: var(--bronze); letter-spacing: 0.1em;
}
[data-design="a"] .rk-tray__acts {
  display: flex; gap: var(--stack); flex-wrap: wrap;
}

/* ═══════════════════════════════════════════════════════════════════
   ELEMENT 3 — Unique animated hero (course-lay under raking light)
   + ELEMENT 2 — funnel-anchor CTA (rk-lever--primary)
   ═══════════════════════════════════════════════════════════════════ */

[data-design="a"] .rk-hero {
  position: relative; overflow: clip; isolation: isolate;
  min-height: clamp(520px, 80vh, 840px);
  display: grid; align-items: center;
  padding: var(--wing) clamp(16px, 5vw, 64px) var(--storey);
  background: var(--ground);
}

/* backdrop fills the hero */
[data-design="a"] .rk-hero__bg {
  position: absolute; inset: 0; z-index: 0; overflow: clip;
}

/* warm limewash base */
[data-design="a"] .rk-hero__wash {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--ground) 0%, var(--surface-sunk) 100%);
}

/* SVG course-lay fills the hero background */
[data-design="a"] .rk-hero__coursework {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  display: block;
}

/* Course-lay animation — courses appear bottom-up (scaleY from 0.94, never scale(0)) */
[data-design="a"] .rk-course {
  transform-origin: center bottom;
  animation: rk-course-rise 0.6s var(--ease-seat) both;
}
[data-design="a"] .rk-course--1 { animation-delay: 0.1s; }
[data-design="a"] .rk-course--2 { animation-delay: 0.25s; }
[data-design="a"] .rk-course--3 { animation-delay: 0.40s; }
[data-design="a"] .rk-course--4 { animation-delay: 0.55s; }
[data-design="a"] .rk-course--5 { animation-delay: 0.70s; }
[data-design="a"] .rk-course--6 { animation-delay: 0.85s; }
[data-design="a"] .rk-course--7 { animation-delay: 1.00s; }

@keyframes rk-course-rise {
  from { opacity: 0; transform: translateY(8px) scaleY(0.94); }
  to   { opacity: 1; transform: translateY(0) scaleY(1); }
}

/* spec leader draws in after courses settle */
[data-design="a"] .rk-spec__leader {
  stroke-dasharray: 280; stroke-dashoffset: 280;
  animation: rk-spec-draw 0.9s var(--ease-rake) 1.2s forwards;
}
[data-design="a"] .rk-spec__code {
  animation: rk-spec-show 0.5s linear 2s forwards;
}
@keyframes rk-spec-draw { to { stroke-dashoffset: 0; } }
@keyframes rk-spec-show { from { opacity: 0; } to { opacity: 1; } }

/* raking band sweeps across the course-lay after load (~2s) */
[data-design="a"] .rk-hero__rake-band {
  animation: rk-hero-band-sweep 1.2s var(--ease-rake) 1.5s both,
             rk-hero-band-drift var(--cyc-rake) ease-in-out 3s infinite;
}
@keyframes rk-hero-band-sweep {
  from { transform: translateX(-100%); opacity: 0; }
  20%  { opacity: 1; }
  to   { transform: translateX(100%); opacity: 0; }
}
@keyframes rk-hero-band-drift {
  0%,100% { transform: translateX(-40%); opacity: 0.18; }
  50%     { transform: translateX(40%); opacity: 0.38; }
}

/* warm graze — perceptible ambient motion (≥15% lightness delta, ≥0.25 opacity at peak) */
[data-design="a"] .rk-hero__graze {
  position: absolute; inset: 0;
  mix-blend-mode: soft-light;
  background: radial-gradient(120% 100% at 76% 28%,
     color-mix(in oklab, var(--light) 82%, transparent) 0%, transparent 60%);
  animation: rk-graze-warm var(--cyc-rake) ease-in-out 0.6s infinite;
}
@keyframes rk-graze-warm {
  0%,100% { opacity: 0.30; }
  50%     { opacity: 0.58; }
}

/* lockup — sits above all backdrop layers (HERO TEXT Z-INDEX HARD) */
[data-design="a"] .rk-hero__lockup {
  position: relative; z-index: 2;
  max-width: min(60ch, 100%);
}

[data-design="a"] .rk-hero__h {
  font-family: var(--font-display); font-weight: 700;
  font-size: var(--t-h1);
  line-height: var(--lh-tight);
  letter-spacing: var(--track-display);
  color: var(--ink);
  text-wrap: balance;
  /* opacity:1 at first paint — HARD RULE */
}
[data-design="a"] .rk-hero__sub {
  font-size: var(--t-lead); color: var(--ink-2);
  margin: var(--pad) 0 0; max-width: 46ch; line-height: 1.45;
}
[data-design="a"] .rk-hero__proof {
  font-family: var(--font-mono); font-size: var(--t-cap);
  color: var(--muted);
  margin: var(--stack) 0 var(--bay);
  display: flex; align-items: center; gap: var(--trim); flex-wrap: wrap;
}

/* ── Lever (button component) ─────────────────────────────────────── */
[data-design="a"] .rk-lever {
  display: inline-flex; align-items: center; gap: var(--trim);
  font-family: var(--font-body); font-weight: 600; font-size: var(--t-body);
  padding: 14px 22px; border-radius: var(--r-trim);
  text-decoration: none; cursor: pointer; min-height: 48px;
  transition: transform var(--dur-touch) var(--ease-seat),
              box-shadow var(--dur-touch) var(--ease-seat),
              color var(--dur-lift) var(--ease-rake);
  border: none;
}
[data-design="a"] .rk-lever--primary {
  background: var(--ink); color: var(--surface);
  box-shadow: var(--elev-lit), inset 0 -2px 0 0 var(--bronze);
}
[data-design="a"] .rk-lever--quiet {
  background: transparent; color: var(--ink);
  box-shadow: inset 0 0 0 1px var(--line);
}

/* CTA — raking-light band passes over face on hover */
[data-design="a"] .rk-cta {
  position: relative; overflow: clip; isolation: isolate;
  animation: rk-cta-breath var(--cyc-breath) var(--ease-draw) infinite;
}
@keyframes rk-cta-breath {
  0%,100% { box-shadow: var(--elev-lit), inset 0 -2px 0 0 var(--bronze); }
  50%     { box-shadow: var(--elev-lit), inset 0 -2px 0 0 var(--bronze),
                        inset 0 1px 0 0 color-mix(in oklab, var(--light) 70%, transparent); }
}

[data-design="a"] .rk-cta__rake {
  position: absolute; inset: 0; z-index: -1;
  transform: translateX(-101%);
  background: linear-gradient(100deg,
     transparent 0%,
     color-mix(in oklab, var(--bronze) 90%, var(--ink)) 40%,
     color-mix(in oklab, var(--light) 75%, var(--bronze)) 60%,
     transparent 100%);
  transition: transform var(--dur-rake) var(--ease-rake);
}
[data-design="a"] .rk-cta__wedge {
  display: inline-grid; place-items: center; color: var(--bronze);
  transition: transform var(--dur-lift) var(--ease-seat);
}

/* Hover/focus transforms — GATED inside (hover:hover) and (pointer:fine) */
@media (hover: hover) and (pointer: fine) {
  [data-design="a"] .rk-cta:hover .rk-cta__rake,
  [data-design="a"] .rk-cta:focus-visible .rk-cta__rake {
    transform: translateX(0);
  }
  [data-design="a"] .rk-cta:hover { color: var(--bronze-ink); }
  [data-design="a"] .rk-cta:hover .rk-cta__wedge {
    transform: translateX(4px); color: var(--bronze-ink);
  }

  [data-design="a"] .rk-opt:hover {
    box-shadow: var(--elev-lit); transform: translateY(-1px);
  }

  [data-design="a"] .rk-lever--quiet:hover {
    box-shadow: inset 0 0 0 1px var(--bronze);
  }
}

[data-design="a"] .rk-cta:active {
  transform: translateY(1px); box-shadow: var(--elev-seated);
}
[data-design="a"] .rk-cta:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--ground), 0 0 0 4px var(--bronze);
}

/* ═══════════════════════════════════════════════════════════════════
   ELEMENT 6 — Animated pointer (hero → funnel)
   ═══════════════════════════════════════════════════════════════════ */

[data-design="a"] .rk-pointer {
  position: relative; z-index: 3;
  display: flex; flex-direction: column; align-items: center; gap: var(--trim);
  margin: calc(var(--room) * -0.5) auto var(--room);
  width: max-content; max-width: 100%;
  color: var(--bronze); cursor: pointer; text-decoration: none;
  /* HARD: opacity:1 and height > 8px — never hidden */
}
[data-design="a"] .rk-pointer__leader {
  position: relative; width: 2px; height: 64px; overflow: hidden;
  background: linear-gradient(var(--bronze),
    color-mix(in oklab, var(--bronze) 30%, transparent));
}
/* light bead traveling down the leader — translateY only (no top animation) */
[data-design="a"] .rk-pointer__beam {
  position: absolute; left: -2px; right: -2px;
  top: 0; height: 40%;
  background: linear-gradient(var(--light), transparent);
  filter: blur(1px);
  animation: rk-pointer-travel var(--cyc-breath) var(--ease-rake) infinite;
}
@keyframes rk-pointer-travel {
  0%   { transform: translateY(-110%); opacity: 0; }
  25%  { opacity: 1; }
  100% { transform: translateY(250%); opacity: 0; }
}
[data-design="a"] .rk-pointer__chev {
  display: grid; place-items: center; color: var(--bronze);
}
[data-design="a"] .rk-pointer__label {
  font-family: var(--font-mono); font-size: var(--t-meta);
  letter-spacing: var(--track-kicker); text-transform: uppercase;
  color: var(--muted);
}

/* ═══════════════════════════════════════════════════════════════════
   ELEMENT 5 — 5-step qualifying funnel
   ═══════════════════════════════════════════════════════════════════ */

[data-design="a"] .rk-funnel {
  padding: var(--storey) clamp(16px, 5vw, 64px);
  background: var(--ground); overflow: clip;
}
[data-design="a"] .rk-funnel__frame {
  max-width: 720px; margin-inline: auto;
  background: var(--surface); border-radius: var(--r-spec);
  box-shadow: var(--elev-lit);
  padding: clamp(20px, 5vw, var(--bay));
}
[data-design="a"] .rk-funnel__h {
  font-family: var(--font-display); font-weight: 700;
  font-size: var(--t-h2); letter-spacing: var(--track-display);
  color: var(--ink); margin: 0 0 var(--pad); text-wrap: balance;
}

/* progress bar — scaleX on a full-width fill (GPU-only, no width transition) */
[data-design="a"] .rk-funnel__bar {
  position: relative; height: 4px; border-radius: var(--r-pill);
  background: var(--surface-sunk); margin-bottom: var(--bay);
  overflow: clip;
}
[data-design="a"] .rk-funnel__fill {
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 100%;
  transform-origin: left center;
  transform: scaleX(var(--p, 0.2));
  background: linear-gradient(90deg, var(--bronze), var(--light));
  border-radius: var(--r-pill);
  transition: transform var(--dur-rake) var(--ease-rake);
}
[data-design="a"] .rk-funnel__count {
  position: absolute; right: 0; top: 10px;
  font-family: var(--font-mono); font-size: var(--t-meta); color: var(--muted);
}
[data-design="a"] .rk-funnel__count b { color: var(--bronze); }

/* steps seat in (transform + opacity only — motion gate clean) */
[data-design="a"] .rk-step { border: 0; margin: 0; padding: 0; }
[data-design="a"] .rk-step:not([hidden]) {
  animation: rk-step-seat var(--dur-rake) var(--ease-seat);
}
@keyframes rk-step-seat {
  from { opacity: 0; transform: translateY(12px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
[data-design="a"] .rk-step__q {
  font-family: var(--font-display); font-weight: 600; font-size: var(--t-h3);
  color: var(--ink); margin-bottom: var(--stack); padding: 0;
  display: block;
}

/* option specimens */
[data-design="a"] .rk-opts {
  display: grid; gap: var(--trim);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 180px), 1fr));
}
[data-design="a"] .rk-opt {
  position: relative; overflow: clip; isolation: isolate; text-align: left;
  display: flex; align-items: center; gap: var(--pad); min-height: 56px;
  font-family: var(--font-body); font-size: var(--t-body); color: var(--ink);
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--r-trim);
  padding: 14px var(--pad); cursor: pointer;
  box-shadow: var(--elev-flush);
  transition: transform var(--dur-touch) var(--ease-seat),
              box-shadow var(--dur-lift) var(--ease-seat),
              border-color var(--dur-touch) linear;
}
[data-design="a"] .rk-opt i {
  font-family: var(--font-mono); font-style: normal; font-size: var(--t-cap);
  width: 28px; height: 28px; display: grid; place-items: center; flex: none;
  color: var(--bronze); border: 1px solid var(--line); border-radius: var(--r-pill);
}
/* selected: seats with raking highlight */
[data-design="a"] .rk-opt[aria-pressed="true"] {
  border-color: var(--bronze); box-shadow: var(--elev-seated);
  background: color-mix(in oklab, var(--light) 22%, var(--surface));
}
[data-design="a"] .rk-opt[aria-pressed="true"] i {
  background: var(--bronze); color: var(--bronze-ink); border-color: var(--bronze);
}
[data-design="a"] .rk-opt[aria-pressed="true"]::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(100deg, transparent,
     color-mix(in oklab, var(--light) 70%, transparent) 50%, transparent);
  animation: rk-opt-rake var(--dur-rake) var(--ease-rake);
}
@keyframes rk-opt-rake {
  from { transform: translateX(-101%); }
  to   { transform: translateX(101%); }
}
[data-design="a"] .rk-opt:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--surface), 0 0 0 4px var(--bronze);
}

/* Step 4 adaptive legends */
[data-design="a"] .rk-step__q[data-q-structural][hidden] { display: none; }
[data-design="a"] .rk-step__q[data-q-budget] { display: block; }

/* structural note */
[data-design="a"] .rk-structural-note {
  font-family: var(--font-mono); font-size: var(--t-meta);
  color: var(--bronze); margin-top: var(--pad);
  line-height: 1.6;
}

/* contact slots */
[data-design="a"] .rk-slots {
  display: grid; gap: var(--pad); grid-template-columns: 1fr 1fr;
}
[data-design="a"] .rk-slot { display: flex; flex-direction: column; gap: 6px; }
[data-design="a"] .rk-slot--wide { grid-column: 1 / -1; }
[data-design="a"] .rk-slot span {
  font-family: var(--font-mono); font-size: var(--t-meta);
  color: var(--muted); letter-spacing: 0.06em; text-transform: uppercase;
}
[data-design="a"] .rk-slot input,
[data-design="a"] .rk-slot textarea {
  font-family: var(--font-body); font-size: var(--t-body); color: var(--ink);
  background: var(--surface-sunk); border: 1px solid var(--line);
  border-radius: var(--r-trim); padding: 12px var(--pad);
  box-shadow: var(--elev-flush); width: 100%; resize: vertical;
  transition: border-color var(--dur-touch) linear,
              box-shadow var(--dur-touch) linear;
}
[data-design="a"] .rk-slot input:focus-visible,
[data-design="a"] .rk-slot textarea:focus-visible {
  outline: none; border-color: var(--bronze);
  box-shadow: inset 0 0 0 1px var(--bronze),
              0 0 0 3px color-mix(in oklab, var(--bronze) 30%, transparent);
}
[data-design="a"] .rk-slot input[aria-invalid="true"] { border-color: var(--critical); }
[data-design="a"] .rk-slot__hint {
  font-family: var(--font-mono); font-size: var(--t-meta);
  color: var(--muted); margin: var(--pad) 0 0;
}
[data-design="a"] .rk-slot__hint[data-error] { color: var(--critical); }

[data-design="a"] .rk-funnel__nav {
  display: flex; gap: var(--pad); margin-top: var(--bay); flex-wrap: wrap;
}
[data-design="a"] .rk-funnel__nav [data-next],
[data-design="a"] .rk-funnel__nav [data-submit] { margin-left: auto; }

/* final lit state */
[data-design="a"] .rk-funnel__done {
  text-align: left;
  animation: rk-step-seat var(--dur-swap) var(--ease-seat);
}
[data-design="a"] .rk-funnel__done h3 {
  font-family: var(--font-display); font-weight: 700;
  font-size: var(--t-h2); color: var(--ink);
  margin: var(--pad) 0 var(--trim);
}
[data-design="a"] .rk-funnel__done p { color: var(--muted); font-size: var(--t-body); max-width: 52ch; }
[data-design="a"] .rk-funnel__done a { color: var(--bronze); text-decoration: underline; }
[data-design="a"] .rk-funnel__done-mark {
  display: block; width: 48px; height: 48px; border-radius: var(--r-pill);
  background: radial-gradient(circle at 35% 30%, var(--light), var(--bronze));
  box-shadow: var(--elev-lit);
}

/* kicker */
[data-design="a"] .rk-kicker {
  font-family: var(--font-mono); font-size: var(--t-meta);
  text-transform: uppercase; letter-spacing: var(--track-kicker);
  color: var(--bronze); margin: 0 0 var(--trim);
}

/* ═══════════════════════════════════════════════════════════════════
   SERVICES section
   ═══════════════════════════════════════════════════════════════════ */

[data-design="a"] .rk-services {
  padding: var(--storey) clamp(16px, 5vw, 64px);
  background: var(--surface); border-block: 1px solid var(--line);
}
[data-design="a"] .rk-services__inner { max-width: 1280px; margin-inline: auto; }
[data-design="a"] .rk-services__head { margin-bottom: var(--bay); }
[data-design="a"] .rk-svc-h {
  font-family: var(--font-display); font-weight: 700;
  font-size: var(--t-h2); letter-spacing: var(--track-display);
  color: var(--ink); text-wrap: balance; margin-bottom: var(--pad);
}
[data-design="a"] .rk-services__lead {
  color: var(--ink-2); font-size: var(--t-body);
  max-width: 64ch; line-height: var(--lh-body);
}
[data-design="a"] .rk-svc-grid {
  display: grid; gap: var(--bay);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
}
[data-design="a"] .rk-specimen--svc {
  background: var(--ground); border-radius: var(--r-spec);
  box-shadow: var(--elev-lit);
  padding: var(--stack);
  display: flex; flex-direction: column; gap: var(--trim);
}
[data-design="a"] .rk-specimen--svc i.rk-spec {
  font-family: var(--font-mono); font-style: normal;
  font-size: var(--t-meta); letter-spacing: 0.08em;
  color: var(--bronze);
  border: 1px solid color-mix(in oklab, var(--bronze) 40%, var(--line));
  border-radius: var(--r-trim); padding: 3px 9px;
  width: fit-content;
  background: color-mix(in oklab, var(--bronze) 10%, transparent);
}
[data-design="a"] .rk-specimen--svc b {
  font-family: var(--font-display); font-weight: 600; font-size: var(--t-h3);
  color: var(--ink); display: block; margin-top: var(--hairline);
}
[data-design="a"] .rk-specimen--svc span {
  color: var(--muted); font-size: var(--t-cap); line-height: var(--lh-body);
}

/* ═══════════════════════════════════════════════════════════════════
   ELEMENT 4 — Ambient mid-page: process schedule grazed by light
   Different axis from hero (vertical downward graze).
   ═══════════════════════════════════════════════════════════════════ */

[data-design="a"] .rk-sched {
  position: relative; overflow: clip; isolation: isolate;
  padding: var(--storey) clamp(16px, 5vw, 64px);
  background: var(--ground); border-block: 1px solid var(--line);
}
[data-design="a"] .rk-sched__graze {
  position: absolute; left: 0; right: 0; top: -40%; height: 60%;
  z-index: 0; pointer-events: none;
  background: linear-gradient(180deg, transparent,
     color-mix(in oklab, var(--light-wash) 60%, transparent) 50%, transparent);
  mix-blend-mode: soft-light; opacity: 0.5;
  animation: rk-graze-down var(--cyc-graze) ease-in-out infinite;
}
@keyframes rk-graze-down {
  0%,100% { transform: translateY(0); opacity: 0.32; }
  50%     { transform: translateY(160%); opacity: 0.55; }
}
[data-design="a"] .rk-sched__head {
  position: relative; z-index: 1;
  max-width: 1280px; margin: 0 auto var(--bay);
}
[data-design="a"] .rk-sched__h {
  font-family: var(--font-display); font-weight: 700;
  font-size: var(--t-h2); color: var(--ink);
  letter-spacing: var(--track-display); text-wrap: balance;
}
[data-design="a"] .rk-sched__rows {
  position: relative; z-index: 1; list-style: none;
  max-width: 1280px; margin: 0 auto; padding: 0;
  display: grid; gap: var(--stack);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr));
}
[data-design="a"] .rk-phase {
  position: relative;
  background: var(--surface); box-shadow: var(--elev-lit);
  padding: var(--stack); border-radius: var(--r-spec);
  opacity: 0; transform: translateY(14px) scale(0.98);
  transition: opacity var(--dur-lift) var(--ease-seat),
              transform var(--dur-lift) var(--ease-seat);
}
[data-design="a"] .rk-sched.is-lit .rk-phase { opacity: 1; transform: none; }
[data-design="a"] .rk-sched.is-lit .rk-phase:nth-child(2) { transition-delay: 0.08s; }
[data-design="a"] .rk-sched.is-lit .rk-phase:nth-child(3) { transition-delay: 0.16s; }
[data-design="a"] .rk-sched.is-lit .rk-phase:nth-child(4) { transition-delay: 0.24s; }
[data-design="a"] .rk-sched.is-lit .rk-phase:nth-child(5) { transition-delay: 0.32s; }

/* bronze light-tick for marked phases */
[data-design="a"] .rk-phase[data-mark]::before {
  content: ""; position: absolute; left: 0; top: var(--stack); bottom: var(--stack);
  width: 3px;
  background: linear-gradient(var(--bronze), var(--light));
  border-radius: var(--r-pill);
}
[data-design="a"] .rk-phase i {
  font-family: var(--font-mono); font-style: normal;
  font-size: var(--t-meta); color: var(--bronze); letter-spacing: 0.12em;
}
[data-design="a"] .rk-phase b {
  display: block; font-family: var(--font-display); font-weight: 600;
  font-size: var(--t-h3); color: var(--ink); margin: var(--hairline) 0 var(--trim);
}
[data-design="a"] .rk-phase span { color: var(--muted); font-size: var(--t-cap); line-height: var(--lh-body); }

/* ═══════════════════════════════════════════════════════════════════
   MATERIALS & METHODS section
   ═══════════════════════════════════════════════════════════════════ */

[data-design="a"] .rk-materials {
  padding: var(--storey) clamp(16px, 5vw, 64px);
  background: var(--surface); border-block: 1px solid var(--line);
}
[data-design="a"] .rk-materials__inner { max-width: 1280px; margin-inline: auto; }
[data-design="a"] .rk-materials__head { margin-bottom: var(--bay); }
[data-design="a"] .rk-mat-h {
  font-family: var(--font-display); font-weight: 700;
  font-size: var(--t-h2); letter-spacing: var(--track-display);
  color: var(--ink); text-wrap: balance; margin-bottom: var(--pad);
}
[data-design="a"] .rk-materials__lead {
  color: var(--ink-2); max-width: 64ch; line-height: var(--lh-body);
}
[data-design="a"] .rk-mat-grid {
  display: grid; gap: var(--bay);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
}
[data-design="a"] .rk-mat-specimen {
  display: flex; flex-direction: column; gap: var(--trim);
  background: var(--ground); border-radius: var(--r-spec);
  box-shadow: var(--elev-lit); padding: var(--stack);
}
[data-design="a"] .rk-spec--mat {
  font-family: var(--font-mono); font-size: var(--t-meta);
  letter-spacing: 0.08em; color: var(--bronze);
  border: 1px solid color-mix(in oklab, var(--bronze) 40%, var(--line));
  border-radius: var(--r-trim); padding: 3px 9px;
  width: fit-content;
  background: color-mix(in oklab, var(--bronze) 10%, transparent);
}
[data-design="a"] .rk-mat-specimen b {
  font-family: var(--font-display); font-weight: 600;
  font-size: var(--t-h3); color: var(--ink);
}
[data-design="a"] .rk-mat-specimen span {
  color: var(--muted); font-size: var(--t-cap); line-height: var(--lh-body);
}

/* ═══════════════════════════════════════════════════════════════════
   REPEATED FUNNEL CTA (after proof — FN-3)
   ═══════════════════════════════════════════════════════════════════ */

[data-design="a"] .rk-repeat-cta {
  padding: var(--storey) clamp(16px, 5vw, 64px);
  background: var(--ground); border-block: 1px solid var(--line-soft);
  text-align: center;
}
[data-design="a"] .rk-repeat-cta__inner {
  max-width: 640px; margin-inline: auto;
  display: flex; flex-direction: column; align-items: center; gap: var(--stack);
}
[data-design="a"] .rk-repeat-cta__h {
  font-family: var(--font-display); font-weight: 700;
  font-size: var(--t-h2); letter-spacing: var(--track-display);
  color: var(--ink); text-wrap: balance;
}
[data-design="a"] .rk-repeat-cta__sub {
  color: var(--muted); max-width: 48ch; line-height: var(--lh-body);
}

/* ═══════════════════════════════════════════════════════════════════
   ABOUT section
   ═══════════════════════════════════════════════════════════════════ */

[data-design="a"] .rk-about {
  padding: var(--storey) clamp(16px, 5vw, 64px);
  background: var(--surface); border-block: 1px solid var(--line);
}
[data-design="a"] .rk-about__inner { max-width: 1280px; margin-inline: auto; }
[data-design="a"] .rk-about__head { margin-bottom: var(--bay); }
[data-design="a"] .rk-about-h {
  font-family: var(--font-display); font-weight: 700;
  font-size: var(--t-h2); letter-spacing: var(--track-display);
  color: var(--ink); text-wrap: balance;
}
[data-design="a"] .rk-about__body {
  max-width: 64ch;
  display: flex; flex-direction: column; gap: var(--stack);
  font-size: var(--t-body); color: var(--ink-2); line-height: var(--lh-body);
}
[data-design="a"] .rk-phone-link { color: var(--bronze); text-decoration: underline; }

/* ═══════════════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════════════ */

[data-design="a"] .rk-footer {
  padding: var(--storey) clamp(16px, 5vw, 64px);
  background: var(--ink); color: var(--surface);
  border-top: 2px solid var(--bronze);
}
[data-design="a"] .rk-footer__inner {
  max-width: 1280px; margin-inline: auto;
  display: grid; gap: var(--bay);
  grid-template-columns: 1fr auto; grid-template-rows: auto auto;
}
[data-design="a"] .rk-footer__brand {
  display: flex; flex-direction: column; gap: var(--trim);
}
[data-design="a"] .rk-footer__name {
  font-family: var(--font-display); font-weight: 700;
  font-size: var(--t-h3); color: var(--surface);
  letter-spacing: var(--track-display);
}
[data-design="a"] .rk-footer__area {
  font-family: var(--font-mono); font-size: var(--t-meta);
  color: var(--muted); letter-spacing: 0.06em;
}
[data-design="a"] .rk-footer__contact {
  display: flex; flex-direction: column; gap: var(--pad); align-items: flex-end;
}
[data-design="a"] .rk-footer__contact .rk-lever--primary {
  background: var(--bronze); color: var(--bronze-ink);
  box-shadow: none;
}
[data-design="a"] .rk-footer__phone {
  font-family: var(--font-mono); font-size: var(--t-body);
  color: var(--light); text-decoration: none; letter-spacing: 0.04em;
}
[data-design="a"] .rk-footer__call-note {
  font-family: var(--font-mono); font-size: var(--t-meta);
  color: var(--muted); letter-spacing: 0.06em;
}
[data-design="a"] .rk-footer__meta {
  grid-column: 1 / -1; border-top: 1px solid color-mix(in oklab, var(--surface) 15%, transparent);
  padding-top: var(--stack);
  display: flex; gap: var(--bay); flex-wrap: wrap; align-items: flex-start;
}
[data-design="a"] .rk-footer__disc {
  font-size: var(--t-cap); color: var(--muted); max-width: 52ch; line-height: var(--lh-body);
}
[data-design="a"] .rk-footer__copy {
  font-family: var(--font-mono); font-size: var(--t-meta); color: var(--faint);
  letter-spacing: 0.06em; margin-left: auto;
}

/* ═══════════════════════════════════════════════════════════════════
   SCROLL-DRIVEN PARALLAX (TRIAD-2 — genuine scroll-linked motion)
   Hero backdrop parallax on scroll — not a fade-in, a real depth shift.
   ═══════════════════════════════════════════════════════════════════ */
@supports (animation-timeline: scroll()) {
  [data-design="a"] .rk-hero__bg {
    animation: rk-hero-parallax linear both;
    animation-timeline: scroll(root);
    animation-range: 0px 600px;
  }
  @keyframes rk-hero-parallax {
    from { transform: translateY(0); }
    to   { transform: translateY(48px); }
  }

  /* graze intensifies slightly as user scrolls past hero */
  [data-design="a"] .rk-hero__graze {
    animation: rk-graze-warm var(--cyc-rake) ease-in-out 0.6s infinite,
               rk-parallax-graze linear both;
    animation-timeline: auto, scroll(root);
    animation-range: auto, 0px 600px;
  }
  @keyframes rk-parallax-graze {
    from { opacity: 0.30; }
    to   { opacity: 0.20; }
  }
}

/* ═══════════════════════════════════════════════════════════════════
   REDUCED MOTION fallbacks
   ═══════════════════════════════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {
  /* stop all ambient animations */
  [data-design="a"] .rk-header__rake { animation: none; opacity: 0.5; }
  [data-design="a"] .rk-header__line { transform: scaleX(1); animation: none; }

  [data-design="a"] .rk-course { animation: none; opacity: 1; transform: none; }
  [data-design="a"] .rk-hero__rake-band { animation: none; opacity: 0.2; }
  [data-design="a"] .rk-hero__graze { animation: none; opacity: 0.42; }
  [data-design="a"] .rk-spec__leader { stroke-dashoffset: 0; animation: none; }
  [data-design="a"] .rk-spec__code { animation: none; }

  [data-design="a"] .rk-pointer__beam { animation: none; transform: translateY(20%); opacity: 0.8; }
  [data-design="a"] .rk-cta { animation: none; }
  [data-design="a"] .rk-cta__rake,
  [data-design="a"] .rk-cta__wedge { transition: none; }

  [data-design="a"] .rk-sched__graze { animation: none; opacity: 0.3; top: 0; height: 100%; }
  [data-design="a"] .rk-phase { opacity: 1; transform: none; transition: none; }

  [data-design="a"] .rk-step:not([hidden]),
  [data-design="a"] .rk-funnel__done { animation: none; }
  [data-design="a"] .rk-opt[aria-pressed="true"]::after { animation: none; display: none; }
  [data-design="a"] .rk-funnel__fill { transition: none; }
  [data-design="a"] .rk-opt { transition: none; }

  [data-design="a"] .rk-tray__panel,
  [data-design="a"] .rk-tray__scrim { transition: none; }

  /* scroll-linked parallax off */
  [data-design="a"] .rk-hero__bg { animation: none; }
}

/* ═══════════════════════════════════════════════════════════════════
   RESPONSIVE — mobile-first, no horizontal scroll at 320/390/768/1440
   ALL rules scoped to .dq-design — never bare [data-design] that leaks
   onto the chrome-kit modal
   ═══════════════════════════════════════════════════════════════════ */

/* Clip guard — scoped exactly as required */
[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;
}

@media (max-width: 768px) {
  [data-design="a"] .rk-hero { min-height: 62vh; padding-top: var(--storey); }
  [data-design="a"] .rk-footer__inner { grid-template-columns: 1fr; }
  [data-design="a"] .rk-footer__contact { align-items: flex-start; }
  [data-design="a"] .rk-footer__copy { margin-left: 0; }
  [data-design="a"] .rk-svc-grid,
  [data-design="a"] .rk-mat-grid { grid-template-columns: 1fr; }
  [data-design="a"] .rk-sched__rows { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  [data-design="a"] .rk-header__bar { padding: var(--trim) var(--pad); }
  [data-design="a"] .rk-hero { padding-inline: var(--pad); }
  [data-design="a"] .rk-hero__sub { font-size: var(--t-body); }
  [data-design="a"] .rk-funnel { padding-block: var(--room); }
  [data-design="a"] .rk-slots { grid-template-columns: 1fr; }
  [data-design="a"] .rk-sched { padding-block: var(--room); }
  [data-design="a"] .rk-services { padding-block: var(--room); }
  [data-design="a"] .rk-materials { padding-block: var(--room); }
  [data-design="a"] .rk-about { padding-block: var(--room); }
  [data-design="a"] .rk-repeat-cta { padding-block: var(--room); }
  [data-design="a"] .rk-footer { padding-block: var(--room); }
  [data-design="a"] .rk-pointer { margin-top: var(--trim); }
  [data-design="a"] .rk-pointer__leader { height: 48px; }
  [data-design="a"] .rk-opts { grid-template-columns: 1fr; }
}

@media (max-width: 390px) {
  [data-design="a"] .rk-hero__h { font-size: clamp(32px, 9vw, 48px); }
}

/* 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; }