/* ===================================================================
   DESIGN B — Palimpsest, remapped to [data-design="b"]
   Stoican & Son Construction · Gig Harbor, WA
   Drafting-over-bond visual language. No frameworks.
   =================================================================== */

[data-design="b"] {
  /* --- exposed primary --- */
  --design-b-primary: #B43E33;          /* redline — the conductor's baton */
  --design-b-blueprint: #1B4F6E;        /* architect's cyan — workhorse accent */

  /* --- color (bond-paper light) --- */
  --b-bond: #F2EBDE;       /* page surface, warm cream, never pure white */
  --b-sheet: #FBF6EC;      /* raised draft sheet */
  --b-ink: #1A1714;        /* graphite primary text, never pure black */
  --b-pencil: #5C544A;     /* secondary text */
  --b-ghost: #9B9180;      /* tertiary / captions */
  --b-rule: #221E18;       /* hairline drafting rules */
  --b-blueprint: #1B4F6E;  /* architect's cyan */
  --b-redline: #B43E33;    /* correction mark / primary CTA */
  --b-patina: #6E7A65;     /* aged verdigris secondary accent */

  /* --- type --- */
  --b-font-display: "Larken", "ITC Caslon 224 Std", "Iowan Old Style", "Charter", Georgia, serif;
  --b-font-body: -apple-system, BlinkMacSystemFont, "Inter", system-ui, sans-serif;
  --b-font-mono: "IBM Plex Mono", "JetBrains Mono", ui-monospace, Menlo, monospace;

  /* --- spacing (drafting grid, 4px base) --- */
  --b-grid-hairline: 1px;
  --b-grid-stitch: 4px;
  --b-grid-tick: 8px;
  --b-grid-batten: 12px;
  --b-grid-stud: 16px;
  --b-grid-joist: 24px;
  --b-grid-bay: 40px;
  --b-grid-span: 64px;
  --b-grid-floor: 96px;
  --b-grid-storey: 144px;

  /* --- motion --- */
  --b-dur-tick: 120ms;
  --b-dur-draft: 240ms;
  --b-dur-ink: 420ms;
  --b-dur-survey: 1200ms;
  --b-dur-breath: 5400ms;
  --b-dur-redraw: 18000ms;
  --b-ease-survey: cubic-bezier(0.22, 0.36, 0.18, 1);
  --b-ease-draft: cubic-bezier(0.5, 0, 0.1, 1);
  --b-ease-stamp: cubic-bezier(0.34, 1.32, 0.42, 1);

  /* --- radius --- */
  --b-radius-corner: 2px;

  background: var(--b-bond);
  color: var(--b-ink);
  font-family: var(--b-font-body);
}

[data-design="b"] * { box-sizing: border-box; }
[data-design="b"] h1, [data-design="b"] h2, [data-design="b"] p, [data-design="b"] ol, [data-design="b"] ul { margin: 0; }

/* =============== ELEMENT 1 — Header =============== */
[data-design="b"].b-header,
[data-design="b"] .b-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--b-bond);
  border-bottom: 1px solid var(--b-rule);
}
[data-design="b"] .b-header__bar {
  position: relative; display: flex; align-items: center; justify-content: space-between;
  max-width: 1280px; margin: 0 auto;
  padding: var(--b-grid-joist) var(--b-grid-bay);
}
[data-design="b"] .b-header__rules { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
[data-design="b"] .b-header__rule {
  position: absolute; left: 0; width: 100%; height: 1px;
  transform-origin: left center; transform: scaleX(0); opacity: 0;
}
[data-design="b"] .b-header__rule--blueprint { top: 30%; background: var(--b-blueprint); animation: b-rule-blueprint 24s var(--b-ease-survey) infinite; }
[data-design="b"] .b-header__rule--redline { bottom: 22%; background: var(--b-redline); animation: b-rule-redline 31s var(--b-ease-survey) infinite; }
@keyframes b-rule-blueprint {
  0% { transform: scaleX(0); opacity: 0; } 12% { transform: scaleX(0); opacity: 0.8; }
  46% { transform: scaleX(1); opacity: 0.45; } 72% { transform: scaleX(1); opacity: 0.1; } 100% { transform: scaleX(1); opacity: 0; }
}
@keyframes b-rule-redline {
  0% { transform: scaleX(0); opacity: 0; } 18% { transform: scaleX(0); opacity: 0.9; }
  58% { transform: scaleX(1); opacity: 0.55; } 84% { transform: scaleX(1); opacity: 0.1; } 100% { transform: scaleX(1); opacity: 0; }
}
[data-design="b"] .b-logo { display: inline-flex; align-items: center; text-decoration: none; line-height: 1.05; }
[data-design="b"] .b-logo__mark { font-family: var(--b-font-display); font-size: 22px; font-weight: 500; letter-spacing: -0.01em; color: var(--b-ink); }
[data-design="b"] .b-hamburger {
  display: inline-flex; flex-direction: column; justify-content: center; gap: 5px;
  width: 44px; height: 44px; background: transparent;
  border: 1px solid var(--b-rule); border-radius: var(--b-radius-corner);
  cursor: pointer; padding: 0 11px;
  transition: border-color var(--b-dur-draft) var(--b-ease-draft);
}
[data-design="b"] .b-hamburger:hover { border-color: var(--b-redline); }
[data-design="b"] .b-hamburger:focus-visible { outline: 2px solid var(--b-blueprint); outline-offset: 2px; }
[data-design="b"] .b-hamburger__bar { display: block; height: 1px; background: var(--b-ink); transition: transform var(--b-dur-ink) var(--b-ease-draft), opacity var(--b-dur-ink); }
[data-design="b"] .b-hamburger[aria-expanded="true"] .b-hamburger__bar:nth-child(1) { transform: translateY(6px) rotate(90deg); }
[data-design="b"] .b-hamburger[aria-expanded="true"] .b-hamburger__bar:nth-child(2) { opacity: 0; }
[data-design="b"] .b-hamburger[aria-expanded="true"] .b-hamburger__bar:nth-child(3) { transform: translateY(-6px) rotate(90deg); }

[data-design="b"] .b-drawer {
  position: fixed; inset: 0;
  background: color-mix(in oklab, var(--b-bond), transparent 6%);
  backdrop-filter: blur(2px); z-index: 49;
  display: grid; place-items: start center;
  padding: 80px var(--b-grid-bay) var(--b-grid-bay);
}
[data-design="b"] .b-drawer[hidden] { display: none; }
[data-design="b"] .b-drawer__sheet {
  background: var(--b-sheet); border: 1px solid var(--b-rule);
  padding: var(--b-grid-bay); width: min(560px, 100%);
  animation: b-drawer-in var(--b-dur-ink) var(--b-ease-survey);
}
@keyframes b-drawer-in { from { transform: translateY(-12px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
[data-design="b"] .b-drawer__head { display: flex; align-items: flex-start; justify-content: space-between; }
[data-design="b"] .b-drawer__title-block {
  display: flex; gap: var(--b-grid-joist); font-family: var(--b-font-mono); font-size: 11px;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--b-pencil);
}
[data-design="b"] .b-drawer__close {
  background: transparent; border: none; color: var(--b-redline);
  font-size: 28px; line-height: 1; cursor: pointer; padding: 0 4px;
  min-width: 44px; min-height: 44px;
}
[data-design="b"] .b-drawer__close:focus-visible { outline: 2px solid var(--b-blueprint); outline-offset: 2px; }
[data-design="b"] .b-drawer__list {
  list-style: none; padding: 0;
  border-top: 1px solid var(--b-rule); margin-top: var(--b-grid-tick);
}
[data-design="b"] .b-drawer__list a {
  display: block; font-family: var(--b-font-display); font-size: 28px; color: var(--b-ink);
  text-decoration: none; padding: var(--b-grid-batten) 0;
  border-bottom: 1px solid color-mix(in oklab, var(--b-rule), transparent 60%);
  transition: color var(--b-dur-draft) var(--b-ease-draft), padding-left var(--b-dur-draft);
}
[data-design="b"] .b-drawer__list a:hover { color: var(--b-redline); padding-left: var(--b-grid-tick); }
[data-design="b"] .b-drawer__cta { margin-top: var(--b-grid-joist); display: flex; flex-direction: column; gap: var(--b-grid-batten); align-items: flex-start; }
[data-design="b"] .b-drawer__phone {
  font-family: var(--b-font-mono); font-size: 13px; letter-spacing: 0.06em; color: var(--b-ink);
  text-decoration: none; border-bottom: 1px solid var(--b-blueprint); padding: 4px 0; min-height: 44px; display: inline-flex; align-items: center;
}
[data-design="b"] .b-drawer__phone:hover { color: var(--b-blueprint); }

/* =============== ELEMENT 2 — Stamp CTA (funnel anchor) =============== */
[data-design="b"] .b-stamp {
  position: relative; display: inline-flex; align-items: center; gap: var(--b-grid-tick);
  padding: 15px 24px; min-height: 44px;
  background: var(--b-bond); border: 2px solid var(--b-redline); border-radius: var(--b-radius-corner);
  font-family: var(--b-font-mono); font-size: 13px; font-weight: 500; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--b-ink); text-decoration: none; cursor: pointer; isolation: isolate;
  animation: b-stamp-breath var(--b-dur-breath) ease-in-out infinite;
  transition: transform var(--b-dur-tick) var(--b-ease-stamp), background-color var(--b-dur-draft);
}
[data-design="b"] .b-stamp__halo {
  position: absolute; inset: -10px; z-index: -1; opacity: 0;
  background: radial-gradient(closest-side, color-mix(in oklab, var(--b-redline), transparent 70%), transparent 70%);
  transition: opacity var(--b-dur-ink) var(--b-ease-draft);
}
[data-design="b"] .b-stamp__tick {
  position: absolute; left: 24px; right: 24px; bottom: 9px; height: 1px; background: var(--b-redline);
  transform-origin: left; transform: scaleX(0); transition: transform var(--b-dur-ink) var(--b-ease-draft);
}
[data-design="b"] .b-stamp__imprint {
  position: absolute; left: 0; right: 0; bottom: -14px; height: 8px; background: var(--b-redline);
  clip-path: polygon(2% 50%, 6% 0, 12% 80%, 18% 20%, 26% 60%, 34% 10%, 42% 80%, 50% 30%, 58% 70%, 66% 20%, 74% 60%, 82% 10%, 90% 80%, 98% 50%);
  opacity: 0; transform: scaleY(0.4); transform-origin: top;
}
[data-design="b"] .b-stamp:hover { background: var(--b-sheet); transform: translateY(-1px); }
[data-design="b"] .b-stamp:hover .b-stamp__halo { opacity: 1; }
[data-design="b"] .b-stamp:hover .b-stamp__tick { transform: scaleX(1); }
[data-design="b"] .b-stamp:focus-visible { outline: 2px solid var(--b-blueprint); outline-offset: 3px; }
[data-design="b"] .b-stamp:active { transform: scale(0.97) translateY(0); background: color-mix(in oklab, var(--b-redline), transparent 88%); }
[data-design="b"] .b-stamp.is-pressed .b-stamp__imprint { animation: b-stamp-imprint 420ms var(--b-ease-stamp); }
@keyframes b-stamp-breath {
  0%, 100% { box-shadow: 0 0 0 0 color-mix(in oklab, var(--b-redline), transparent 100%); }
  50% { box-shadow: 0 0 0 4px color-mix(in oklab, var(--b-redline), transparent 86%); }
}
@keyframes b-stamp-imprint {
  0% { opacity: 1; transform: scaleY(0.4); } 60% { opacity: 0.6; transform: scaleY(1); }
  100% { opacity: 0; transform: scaleY(1) translateY(4px); }
}

/* =============== HERO — one arrival layer + Element 2 =============== */
[data-design="b"] .b-hero {
  position: relative; overflow: hidden;
  background: var(--b-bond);
  border-bottom: 1px solid var(--b-rule);
  padding: clamp(64px, 12vw, var(--b-grid-storey)) var(--b-grid-bay) clamp(56px, 9vw, var(--b-grid-floor));
}
[data-design="b"] .b-hero__field { position: absolute; inset: 0; pointer-events: none; }
[data-design="b"] .b-hero__field::before {
  /* static (non-animated) bond tint beneath the single animated layer */
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(120% 90% at 78% 18%, color-mix(in oklab, var(--b-blueprint), transparent 90%), transparent 60%),
    repeating-linear-gradient(0deg, transparent 0 38px, color-mix(in oklab, var(--b-rule), transparent 95%) 38px 39px);
}
[data-design="b"] .b-hero__draw {
  position: absolute; top: 50%; right: clamp(-40px, -2vw, 0px); transform: translateY(-50%);
  width: min(620px, 62%); height: auto; opacity: 0.9;
}
[data-design="b"] .b-hero__ln { stroke-dasharray: 1400; stroke-dashoffset: 1400; animation: b-hero-draw 1900ms var(--b-ease-draft) forwards; }
[data-design="b"] .b-hero__ln:nth-child(2) { animation-delay: 160ms; }
[data-design="b"] .b-hero__ln:nth-child(3) { animation-delay: 320ms; }
[data-design="b"] .b-hero__ln:nth-child(4) { animation-delay: 420ms; }
[data-design="b"] .b-hero__ln:nth-child(5) { animation-delay: 520ms; }
[data-design="b"] .b-hero__dim { stroke-dasharray: 520; stroke-dashoffset: 520; animation: b-hero-draw 1400ms var(--b-ease-draft) 620ms forwards; }
[data-design="b"] .b-hero__elev { animation: b-hero-breath var(--b-dur-redraw) ease-in-out 2200ms infinite; }
@keyframes b-hero-draw { to { stroke-dashoffset: 0; } }
@keyframes b-hero-breath { 0%, 100% { opacity: 0.92; } 50% { opacity: 0.66; } }

[data-design="b"] .b-hero__inner { position: relative; max-width: 1280px; margin: 0 auto; }
[data-design="b"] .b-hero__kicker {
  font-family: var(--b-font-mono); font-size: 12px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--b-pencil); margin-bottom: var(--b-grid-batten); opacity: 1;
}
[data-design="b"] .b-hero__title {
  font-family: var(--b-font-display); font-weight: 500; letter-spacing: -0.018em; line-height: 1.04;
  font-size: clamp(34px, 6.4vw, 72px); color: var(--b-ink); max-width: 18ch; opacity: 1;
}
[data-design="b"] .b-hero__sub {
  font-family: var(--b-font-body); font-size: clamp(17px, 2.2vw, 20px); line-height: 1.55;
  color: var(--b-pencil); max-width: 52ch; margin-top: var(--b-grid-joist); opacity: 1;
}
[data-design="b"] .b-hero__proof {
  font-family: var(--b-font-mono); font-size: 12px; letter-spacing: 0.06em; color: var(--b-ink);
  margin-top: var(--b-grid-batten); max-width: 60ch; opacity: 1;
}
[data-design="b"] .b-hero__actions { display: flex; flex-wrap: wrap; align-items: center; gap: var(--b-grid-joist); margin-top: var(--b-grid-bay); }
[data-design="b"] .b-hero__chip {
  font-family: var(--b-font-mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--b-blueprint); border: 1px solid color-mix(in oklab, var(--b-blueprint), transparent 50%);
  padding: 6px 12px; border-radius: var(--b-radius-corner);
}

/* =============== ELEMENT 6 — Pointer =============== */
[data-design="b"] .b-pointer {
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: var(--b-pencil);
  padding: clamp(40px, 8vw, 80px) 16px clamp(40px, 7vw, 72px);
}
[data-design="b"] .b-pointer__tick { display: block; width: 16px; height: 1px; background: currentColor; opacity: 0.7; }
[data-design="b"] .b-pointer__rule { display: block; width: 1px; height: 56px; background: currentColor; transform-origin: top center; animation: b-pointer-extend 5s ease-in-out infinite; }
[data-design="b"] .b-pointer__label { font-family: var(--b-font-mono); font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase; opacity: 0; animation: b-pointer-stamp 5s ease-in-out infinite; }
@keyframes b-pointer-extend { 0%, 100% { transform: scaleY(0.4); opacity: 0.4; } 50% { transform: scaleY(1); opacity: 0.85; } }
@keyframes b-pointer-stamp { 0%, 30%, 100% { opacity: 0; } 50%, 70% { opacity: 0.85; } }

/* =============== ELEMENT 5 — Project Worksheet funnel =============== */
[data-design="b"] .b-worksheet {
  background: var(--b-sheet); padding: var(--b-grid-floor) var(--b-grid-bay);
  border-top: 1px solid var(--b-rule); border-bottom: 1px solid var(--b-rule);
}
[data-design="b"] .b-worksheet__head { max-width: 720px; margin: 0 auto var(--b-grid-bay); }
[data-design="b"] .b-worksheet__kicker { font-family: var(--b-font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--b-pencil); margin-bottom: var(--b-grid-stitch); }
[data-design="b"] .b-worksheet h2 { font-family: var(--b-font-display); font-size: clamp(28px, 4.5vw, 48px); letter-spacing: -0.015em; color: var(--b-ink); margin-bottom: var(--b-grid-joist); }
[data-design="b"] .b-worksheet__lead { font-family: var(--b-font-body); font-size: 17px; line-height: 1.55; color: var(--b-pencil); max-width: 60ch; }
[data-design="b"] .b-funnel { position: relative; max-width: 720px; margin: 0 auto; background: var(--b-bond); border: 1px solid var(--b-rule); padding: var(--b-grid-bay); }
[data-design="b"] .b-funnel__progress {
  display: flex; flex-wrap: wrap; gap: var(--b-grid-joist); list-style: none; padding: 0 0 var(--b-grid-tick); margin-bottom: var(--b-grid-bay);
  font-family: var(--b-font-mono); font-size: 11px; letter-spacing: 0.14em; color: var(--b-ghost); border-bottom: 1px solid var(--b-rule);
}
[data-design="b"] .b-funnel__progress li { transition: color var(--b-dur-draft); }
[data-design="b"] .b-funnel__progress li.is-done { color: var(--b-redline); }
[data-design="b"] .b-funnel__progress li.is-active { color: var(--b-ink); }
[data-design="b"] .b-funnel__step { border: none; padding: 0; margin: 0; display: none; position: relative; }
[data-design="b"] .b-funnel__step.is-active { display: block; animation: b-funnel-register var(--b-dur-ink) var(--b-ease-survey); }
@keyframes b-funnel-register { from { transform: translateY(8px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
[data-design="b"] .b-funnel__step.is-error { animation: b-funnel-shake 400ms ease; }
@keyframes b-funnel-shake { 0%, 100% { transform: translateX(0); } 25% { transform: translateX(-5px); } 75% { transform: translateX(5px); } }
[data-design="b"] .b-funnel__legend { font-family: var(--b-font-display); font-size: clamp(19px, 3vw, 22px); color: var(--b-ink); letter-spacing: -0.01em; margin-bottom: var(--b-grid-joist); display: block; }
[data-design="b"] .b-funnel__choices { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: var(--b-grid-tick); margin-bottom: var(--b-grid-bay); }
[data-design="b"] .b-funnel__choices--row { grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); }
[data-design="b"] .b-funnel__choices label {
  position: relative; cursor: pointer; border: 1px solid var(--b-rule); padding: var(--b-grid-batten) var(--b-grid-joist);
  font-family: var(--b-font-body); font-size: 15px; color: var(--b-ink); background: var(--b-sheet); min-height: 44px; display: flex; align-items: center;
  transition: border-color var(--b-dur-draft), background var(--b-dur-draft);
}
[data-design="b"] .b-funnel__choices label:hover { border-color: var(--b-blueprint); }
[data-design="b"] .b-funnel__choices label:has(input:checked) { border-color: var(--b-redline); background: color-mix(in oklab, var(--b-redline), transparent 94%); }
[data-design="b"] .b-funnel__choices input { position: absolute; opacity: 0; pointer-events: none; }
[data-design="b"] .b-funnel__choices label:focus-within { outline: 2px solid var(--b-blueprint); outline-offset: 2px; }
[data-design="b"] .b-funnel__next {
  background: transparent; border: 1px solid var(--b-ink); color: var(--b-ink);
  font-family: var(--b-font-mono); font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase;
  padding: 12px 18px; min-height: 44px; cursor: pointer; transition: background var(--b-dur-draft), color var(--b-dur-draft);
}
[data-design="b"] .b-funnel__next:hover { background: var(--b-ink); color: var(--b-bond); }
[data-design="b"] .b-funnel__next:focus-visible { outline: 2px solid var(--b-blueprint); outline-offset: 2px; }
[data-design="b"] .b-funnel__stamp {
  position: absolute; top: -4px; right: 0; font-family: var(--b-font-mono); font-size: 12px; letter-spacing: 0.22em;
  color: var(--b-redline); border: 2px solid var(--b-redline); padding: 4px 10px;
  transform: rotate(-7deg) scale(0.7); opacity: 0; pointer-events: none;
}
[data-design="b"] .b-funnel__step.is-stamped .b-funnel__stamp { animation: b-funnel-stamp 540ms var(--b-ease-stamp) forwards; }
@keyframes b-funnel-stamp {
  0% { transform: rotate(-7deg) scale(0.5); opacity: 0; } 60% { transform: rotate(-7deg) scale(1.08); opacity: 1; } 100% { transform: rotate(-7deg) scale(1); opacity: 0.95; }
}
[data-design="b"] .b-funnel__fields { display: grid; gap: var(--b-grid-joist); margin-bottom: var(--b-grid-bay); }
[data-design="b"] .b-imprint { display: block; }
[data-design="b"] .b-imprint__label { display: block; font-family: var(--b-font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--b-pencil); margin-bottom: 4px; }
[data-design="b"] .b-imprint input {
  width: 100%; background: transparent; border: 0; border-bottom: 1px solid var(--b-rule);
  padding: 10px 0; font-family: var(--b-font-body); font-size: 16px; color: var(--b-ink); outline: none;
  transition: border-color var(--b-dur-draft);
}
[data-design="b"] .b-imprint input:focus { border-bottom-color: var(--b-blueprint); border-bottom-width: 2px; }
[data-design="b"] .b-funnel__submit { margin-top: var(--b-grid-tick); }
[data-design="b"] .b-funnel__thanks { display: block; padding: var(--b-grid-bay) 0; }
[data-design="b"] .b-funnel__thanks[hidden] { display: none; }
[data-design="b"] .b-funnel__thanks-kicker { font-family: var(--b-font-mono); font-size: 11px; letter-spacing: 0.22em; color: var(--b-redline); margin-bottom: var(--b-grid-tick); }
[data-design="b"] .b-funnel__thanks-body { font-family: var(--b-font-display); font-size: clamp(20px, 3vw, 24px); color: var(--b-ink); line-height: 1.4; }
[data-design="b"] .b-funnel__thanks-body a { color: var(--b-redline); }

/* =============== ELEMENT 3 CODE — Before/After Seam → Work =============== */
[data-design="b"] .b-seam { background: var(--b-bond); padding: var(--b-grid-floor) var(--b-grid-bay); border-bottom: 1px solid var(--b-rule); }
[data-design="b"] .b-seam__head { max-width: 1100px; margin: 0 auto var(--b-grid-bay); }
[data-design="b"] .b-seam__kicker { font-family: var(--b-font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--b-pencil); margin-bottom: var(--b-grid-stitch); }
[data-design="b"] .b-seam h2 { font-family: var(--b-font-display); font-size: clamp(28px, 4.5vw, 48px); letter-spacing: -0.015em; color: var(--b-ink); margin-bottom: var(--b-grid-joist); max-width: 22ch; }
[data-design="b"] .b-seam__lead { font-family: var(--b-font-body); font-size: 17px; line-height: 1.55; color: var(--b-pencil); max-width: 60ch; }
[data-design="b"] .b-seam__plate { position: relative; max-width: 1100px; margin: 0 auto; border: 1px solid var(--b-rule); background: var(--b-sheet); overflow: hidden; }
[data-design="b"] .b-seam__row { position: relative; height: clamp(180px, 28vw, 260px); display: flex; align-items: flex-end; padding: var(--b-grid-joist); }
[data-design="b"] .b-seam__row--before {
  background:
    linear-gradient(180deg, color-mix(in oklab, var(--b-ink), transparent 70%) 0%, transparent 35%),
    linear-gradient(180deg, var(--b-pencil), color-mix(in oklab, var(--b-pencil), var(--b-bond) 35%));
}
[data-design="b"] .b-seam__before-art {
  position: absolute; inset: 0; filter: contrast(1.05);
  background-image:
    linear-gradient(180deg, transparent 60%, color-mix(in oklab, var(--b-ink), transparent 50%) 100%),
    repeating-linear-gradient(115deg, color-mix(in oklab, var(--b-ink), transparent 92%) 0 1px, transparent 1px 16px);
}
[data-design="b"] .b-seam__row--after { background: var(--b-sheet); }
[data-design="b"] .b-seam__after-art {
  position: absolute; inset: 0;
  background-image:
    repeating-linear-gradient(0deg, transparent 0 28px, color-mix(in oklab, var(--b-blueprint), transparent 80%) 28px 29px),
    repeating-linear-gradient(90deg, transparent 0 28px, color-mix(in oklab, var(--b-blueprint), transparent 80%) 28px 29px);
}
[data-design="b"] .b-seam__after-art::after {
  content: ""; position: absolute; left: 8%; right: 8%; bottom: 18%; height: 38%;
  border: 1.5px solid var(--b-blueprint); border-radius: var(--b-radius-corner);
  background: linear-gradient(0deg, color-mix(in oklab, var(--b-blueprint), transparent 92%), transparent 60%);
}
[data-design="b"] .b-seam__caption {
  position: relative; z-index: 2; font-family: var(--b-font-mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase;
  background: color-mix(in oklab, var(--b-bond), transparent 14%); padding: 4px 8px;
}
[data-design="b"] .b-seam__caption--before { color: var(--b-sheet); background: color-mix(in oklab, var(--b-ink), transparent 20%); }
[data-design="b"] .b-seam__caption--after { color: var(--b-blueprint); }
[data-design="b"] .b-seam__rule { position: relative; height: 2px; background: transparent; overflow: visible; }
[data-design="b"] .b-seam__rule-line { position: absolute; inset: 0; background: var(--b-redline); }
[data-design="b"] .b-seam__rule-aperture {
  position: absolute; top: -64px; left: 0; width: 96px; height: 132px;
  border: 2px solid var(--b-redline); mix-blend-mode: multiply;
  background: linear-gradient(0deg, color-mix(in oklab, var(--b-redline), transparent 92%), transparent);
  animation: b-seam-travel var(--b-dur-redraw) var(--b-ease-survey) infinite;
}
@keyframes b-seam-travel {
  0% { left: 0; transform: translateX(0); opacity: 0; } 6% { opacity: 0.85; }
  50% { left: 100%; transform: translateX(-100%); opacity: 0.85; } 56% { opacity: 0; }
  60% { left: 100%; opacity: 0; } 100% { left: 0; opacity: 0; }
}
[data-design="b"] .b-seam.is-paused .b-seam__rule-aperture { animation-play-state: paused; }
[data-design="b"] .b-seam__note { max-width: 1100px; margin: var(--b-grid-joist) auto 0; font-family: var(--b-font-body); font-size: 14px; line-height: 1.55; color: var(--b-ghost); max-width: 64ch; }

/* =============== Services — drafting index =============== */
[data-design="b"] .b-services { background: var(--b-sheet); padding: var(--b-grid-floor) var(--b-grid-bay); border-bottom: 1px solid var(--b-rule); }
[data-design="b"] .b-services__inner { max-width: 1100px; margin: 0 auto; }
[data-design="b"] .b-services__kicker { font-family: var(--b-font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--b-pencil); margin-bottom: var(--b-grid-stitch); }
[data-design="b"] .b-services h2 { font-family: var(--b-font-display); font-size: clamp(28px, 4.5vw, 48px); letter-spacing: -0.015em; color: var(--b-ink); margin-bottom: var(--b-grid-bay); }
[data-design="b"] .b-index { list-style: none; padding: 0; border-top: 1px solid var(--b-rule); }
[data-design="b"] .b-index__row {
  display: grid; grid-template-columns: 48px minmax(160px, 1fr) 2fr; gap: var(--b-grid-joist); align-items: baseline;
  padding: var(--b-grid-joist) 0; border-bottom: 1px solid color-mix(in oklab, var(--b-rule), transparent 55%);
}
[data-design="b"] .b-index__no { font-family: var(--b-font-mono); font-size: 13px; color: var(--b-blueprint); letter-spacing: 0.1em; }
[data-design="b"] .b-index__name { font-family: var(--b-font-display); font-size: clamp(20px, 3vw, 26px); color: var(--b-ink); }
[data-design="b"] .b-index__desc { font-family: var(--b-font-body); font-size: 16px; line-height: 1.55; color: var(--b-pencil); }

/* =============== ELEMENT 4 — Sectional Hatching → Process =============== */
[data-design="b"] .b-hatch { position: relative; background: var(--b-bond); padding: var(--b-grid-floor) var(--b-grid-bay); overflow: hidden; border-bottom: 1px solid var(--b-rule); }
[data-design="b"] .b-hatch__field { position: absolute; inset: 0; pointer-events: none; }
[data-design="b"] .b-hatch__layer {
  position: absolute; inset: -10%; opacity: 0; transform: translateX(-12%);
  background-image: repeating-linear-gradient(135deg, color-mix(in oklab, var(--b-patina), transparent 78%) 0 1px, transparent 1px 22px);
}
[data-design="b"] .b-hatch__layer--a { animation: b-hatch-wave 14s linear infinite; }
[data-design="b"] .b-hatch__layer--b {
  background-image: repeating-linear-gradient(135deg, color-mix(in oklab, var(--b-blueprint), transparent 86%) 0 1px, transparent 1px 22px);
  animation: b-hatch-wave 14s linear infinite; animation-delay: -7s;
}
@keyframes b-hatch-wave {
  0% { opacity: 0; transform: translateX(-12%); } 20% { opacity: 0.95; }
  60% { opacity: 0.95; transform: translateX(8%); } 85% { opacity: 0; } 100% { opacity: 0; transform: translateX(12%); }
}
[data-design="b"] .b-hatch.is-paused .b-hatch__layer { animation-play-state: paused; }
[data-design="b"] .b-hatch__inner { position: relative; max-width: 1100px; margin: 0 auto; }
[data-design="b"] .b-hatch__kicker { font-family: var(--b-font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--b-pencil); margin-bottom: var(--b-grid-stitch); }
[data-design="b"] .b-hatch h2 { font-family: var(--b-font-display); font-size: clamp(28px, 4.5vw, 48px); letter-spacing: -0.015em; color: var(--b-ink); margin-bottom: var(--b-grid-bay); }
[data-design="b"] .b-hatch__steps { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: var(--b-grid-bay); }
[data-design="b"] .b-hatch__steps > li { background: var(--b-sheet); border: 1px solid var(--b-rule); padding: var(--b-grid-joist); font-family: var(--b-font-body); font-size: 16px; line-height: 1.55; color: var(--b-ink); }
[data-design="b"] .b-hatch__steps > li::before { content: attr(data-step) " — "; font-family: var(--b-font-mono); font-size: 11px; letter-spacing: 0.14em; color: var(--b-blueprint); text-transform: uppercase; }

/* =============== Repeated funnel CTA =============== */
[data-design="b"] .b-recta { background: var(--b-sheet); padding: var(--b-grid-floor) var(--b-grid-bay); border-bottom: 1px solid var(--b-rule); }
[data-design="b"] .b-recta__inner { max-width: 1100px; margin: 0 auto; display: flex; flex-wrap: wrap; align-items: center; gap: var(--b-grid-joist); }
[data-design="b"] .b-recta__line { font-family: var(--b-font-display); font-size: clamp(24px, 4vw, 36px); color: var(--b-ink); letter-spacing: -0.015em; }
[data-design="b"] .b-recta__phone { font-family: var(--b-font-mono); font-size: 13px; letter-spacing: 0.06em; color: var(--b-ink); text-decoration: none; border-bottom: 1px solid var(--b-blueprint); padding: 4px 0; min-height: 44px; display: inline-flex; align-items: center; }
[data-design="b"] .b-recta__phone:hover { color: var(--b-blueprint); }

/* =============== Footer — title block =============== */
[data-design="b"] .b-footer { background: var(--b-bond); padding: var(--b-grid-floor) var(--b-grid-bay) var(--b-grid-bay); }
[data-design="b"] .b-footer__inner { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: var(--b-grid-bay); border-top: 1px solid var(--b-rule); padding-top: var(--b-grid-bay); }
[data-design="b"] .b-footer__logo { font-family: var(--b-font-display); font-size: 26px; font-weight: 500; color: var(--b-ink); }
[data-design="b"] .b-footer__tag { font-family: var(--b-font-mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--b-pencil); margin-top: var(--b-grid-stitch); }
[data-design="b"] .b-footer__h { font-family: var(--b-font-mono); font-size: 11px; letter-spacing: 0.18em; color: var(--b-blueprint); margin-bottom: var(--b-grid-batten); }
[data-design="b"] .b-footer__col p { font-family: var(--b-font-body); font-size: 15px; line-height: 1.6; color: var(--b-ink); }
[data-design="b"] .b-footer__col a { color: var(--b-ink); text-decoration: none; border-bottom: 1px solid var(--b-blueprint); }
[data-design="b"] .b-footer__muted { color: var(--b-pencil); }
[data-design="b"] .b-footer__legal { max-width: 1100px; margin: var(--b-grid-bay) auto 0; font-family: var(--b-font-mono); font-size: 11px; letter-spacing: 0.06em; color: var(--b-ghost); }

/* =============== Responsive =============== */
@media (max-width: 768px) {
  [data-design="b"] .b-hero__draw { opacity: 0.5; width: 90%; right: -20%; }
  [data-design="b"] .b-index__row { grid-template-columns: 40px 1fr; }
  [data-design="b"] .b-index__desc { grid-column: 1 / -1; }
}
@media (max-width: 560px) {
  [data-design="b"] .b-header__bar { padding: var(--b-grid-batten) var(--b-grid-joist); }
  [data-design="b"] .b-logo__mark { font-size: 18px; }
  [data-design="b"] .b-hero { padding: var(--b-grid-span) var(--b-grid-joist) var(--b-grid-bay); }
  [data-design="b"] .b-worksheet, [data-design="b"] .b-seam, [data-design="b"] .b-services, [data-design="b"] .b-hatch, [data-design="b"] .b-recta, [data-design="b"] .b-footer { padding-left: var(--b-grid-joist); padding-right: var(--b-grid-joist); padding-top: var(--b-grid-span); padding-bottom: var(--b-grid-span); }
  [data-design="b"] .b-funnel { padding: var(--b-grid-joist); }
  [data-design="b"] .b-seam__row { height: 160px; }
  [data-design="b"] .b-seam__rule-aperture { width: 64px; height: 100px; top: -50px; }
}

/* =============== Reduced motion =============== */
@media (prefers-reduced-motion: reduce) {
  [data-design="b"] .b-header__rule { animation: none; transform: scaleX(1); opacity: 0.35; }
  [data-design="b"] .b-drawer__sheet { animation: none; }
  [data-design="b"] .b-stamp { animation: none; }
  [data-design="b"] .b-stamp__tick, [data-design="b"] .b-stamp__imprint { transition: none; animation: none; }
  [data-design="b"] .b-hero__ln, [data-design="b"] .b-hero__dim { animation: none; stroke-dashoffset: 0; }
  [data-design="b"] .b-hero__elev { animation: none; opacity: 0.85; }
  [data-design="b"] .b-pointer__rule, [data-design="b"] .b-pointer__label { animation: none; opacity: 0.7; }
  [data-design="b"] .b-funnel__step.is-active { animation: none; }
  [data-design="b"] .b-funnel__step.is-stamped .b-funnel__stamp { animation: none; opacity: 0.95; transform: rotate(-7deg) scale(1); }
  [data-design="b"] .b-seam__rule-aperture { animation: none; left: 50%; transform: translateX(-50%); opacity: 0.75; }
  [data-design="b"] .b-hatch__layer { animation: none; opacity: 0.45; transform: translateX(0); }
}

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

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