/* ============================================================
   Mueller Construction — Design B — Bench Mark
   All selectors scoped under [data-design="b"].
   Keyframes prefixed bm-.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Public+Sans:ital,wght@0,300..800;1,400..700&family=Lora:ital,wght@0,400..700;1,400..600&family=IBM+Plex+Mono:wght@400;500&display=swap');

/* ---- Token system + design-b primary (read by the Reforge Bar) ---- */
[data-design="b"] {
  --design-b-primary: #5e7f4f;

  --bm-bone-50: #f7f4ed;
  --bm-bone-100: #ede9dd;
  --bm-bone-200: #dcd5bf;
  --bm-ink-900: #10172a;
  --bm-ink-700: #2a3450;
  --bm-ink-500: #576180;
  --bm-ink-300: #9098b4;
  --bm-sage-600: #5e7f4f;
  --bm-sage-100: #dde7d2;
  --bm-ochre-600: #a37b22;
  --bm-purple-600: #5e2a6e;
  --bm-stake-700: #8a2522;
  --bm-stake-100: #f3d6d3;

  --bm-font-display: "Public Sans", "Inter Tight", system-ui, sans-serif;
  --bm-font-body: "Lora", "Source Serif 4", "Charter", Georgia, serif;
  --bm-font-mono: "IBM Plex Mono", "JetBrains Mono", ui-monospace, monospace;

  --bm-fs-detail: 13px;
  --bm-fs-caption: 15px;
  --bm-fs-body: 19px;
  --bm-fs-body-lg: 24px;
  --bm-fs-headline: 38px;
  --bm-fs-elev: 36px;

  --bm-tick: 4px;
  --bm-graticule: 8px;
  --bm-station: 12px;
  --bm-traverse: 24px;
  --bm-baseline: 40px;
  --bm-quadrangle: 64px;
  --bm-span: 96px;
  --bm-storey: 128px;
  --bm-datum: 192px;

  --bm-ease-survey: cubic-bezier(0.4, 0.05, 0.2, 1);
  --bm-ease-stake: cubic-bezier(0.6, 0, 0.3, 1);
  --bm-ease-settle: cubic-bezier(0.22, 0.61, 0.36, 1);
  --bm-ease-bearing: cubic-bezier(0.16, 1.2, 0.4, 1);
  --bm-ease-breath: cubic-bezier(0.45, 0, 0.55, 1);

  --bm-dur-fb: 140ms;
  --bm-dur-settle: 260ms;
  --bm-dur-stake: 420ms;
  --bm-dur-bearing: 900ms;
  --bm-dur-survey: 1500ms;
  --bm-dur-breath-fast: 6s;
  --bm-dur-breath-mid: 16s;
  --bm-dur-breath-slow: 32s;

  --bm-radius-0: 0;
  --bm-radius-tick: 2px;
  --bm-radius-card: 4px;
  --bm-pill: 999px;

  --bm-shadow-paper: 0 0 0 1px var(--bm-ink-300), 0 6px 16px -4px rgba(16,23,42,0.08);
  --bm-shadow-paper-lift: 0 0 0 1px var(--bm-ink-300), 0 14px 36px -8px rgba(16,23,42,0.14);
  --bm-shadow-stake-press: inset 0 2px 0 0 var(--bm-sage-600), 0 0 0 2px rgba(94,127,79,0.18);
}

/* ---- Base ---- */
[data-design="b"] .dq-design,
[data-design="b"] [data-design="bench-mark"] {
  background: var(--bm-bone-50);
  color: var(--bm-ink-900);
  font-family: var(--bm-font-body);
  font-size: var(--bm-fs-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
[data-design="b"] [data-design="bench-mark"] *,
[data-design="b"] [data-design="bench-mark"] *::before,
[data-design="b"] [data-design="bench-mark"] *::after { box-sizing: border-box; }
[data-design="b"] [data-design="bench-mark"] h1,
[data-design="b"] [data-design="bench-mark"] h2,
[data-design="b"] [data-design="bench-mark"] h3,
[data-design="b"] [data-design="bench-mark"] p,
[data-design="b"] [data-design="bench-mark"] ol,
[data-design="b"] [data-design="bench-mark"] ul,
[data-design="b"] [data-design="bench-mark"] dl,
[data-design="b"] [data-design="bench-mark"] figure { margin: 0; }
[data-design="b"] [data-design="bench-mark"] a { color: var(--bm-sage-600); }
[data-design="b"] [data-design="bench-mark"] img { display: block; max-width: 100%; height: auto; }

/* ============ ELEMENT 1 — HEADER ============ */
[data-design="b"] .bm-header { position: relative; background: var(--bm-bone-50); border-bottom: 1px solid var(--bm-ink-300); overflow: hidden; }
[data-design="b"] .bm-header__contours { position: absolute; inset: 0; color: var(--bm-sage-600); opacity: 0.45; pointer-events: none; }
[data-design="b"] .bm-contours-svg { width: 100%; height: 100%; display: block; }
[data-design="b"] .bm-contour { stroke-dasharray: 100; stroke-dashoffset: 100; animation: bm-contour-draw var(--bm-dur-breath-slow) var(--bm-ease-survey) infinite; }
[data-design="b"] .bm-contour:nth-child(1) { animation-delay: 0s; }
[data-design="b"] .bm-contour:nth-child(2) { animation-delay: 3s; }
[data-design="b"] .bm-contour:nth-child(3) { animation-delay: 6s; }
@keyframes bm-contour-draw {
  0%   { stroke-dashoffset: 100; opacity: 0; }
  10%  { opacity: 1; }
  45%  { stroke-dashoffset: 0; opacity: 1; }
  75%  { stroke-dashoffset: 0; opacity: 1; }
  92%  { stroke-dashoffset: -100; opacity: 0; }
  100% { stroke-dashoffset: -100; opacity: 0; }
}

[data-design="b"] .bm-header__bar { position: relative; z-index: 1; display: flex; align-items: center; justify-content: space-between; padding: var(--bm-station) clamp(var(--bm-traverse), 4vw, var(--bm-baseline)); min-height: 64px; }
[data-design="b"] .bm-logo { display: inline-flex; align-items: center; gap: var(--bm-station); text-decoration: none; color: var(--bm-ink-900); font-family: var(--bm-font-display); font-weight: 600; font-size: 21px; letter-spacing: -0.008em; }
[data-design="b"] .bm-logo__arrow { width: 22px; height: 22px; color: var(--bm-ink-900); }
[data-design="b"] .bm-logo__arrow svg { width: 100%; height: 100%; display: block; }
[data-design="b"] .bm-logo__needle { transform-origin: 12px 12px; animation: bm-needle 60s linear infinite; }
@keyframes bm-needle { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
[data-design="b"] .bm-logo__mark { line-height: 1; }

[data-design="b"] .bm-hamburger { display: inline-flex; flex-direction: column; gap: 5px; background: transparent; border: 1px solid var(--bm-ink-700); padding: 10px 12px; cursor: pointer; border-radius: var(--bm-radius-tick); }
[data-design="b"] .bm-hamburger:hover { border-color: var(--bm-sage-600); }
[data-design="b"] .bm-hamburger__rule { display: block; width: 18px; height: 1px; background: var(--bm-ink-900); }

[data-design="b"] .bm-drawer { position: fixed; inset: 0 0 0 auto; width: min(440px, 90vw); background: var(--bm-bone-50); border-left: 3px solid var(--bm-sage-600); box-shadow: var(--bm-shadow-paper-lift); padding: var(--bm-baseline); transform: translateX(100%); transition: transform var(--bm-dur-bearing) var(--bm-ease-survey); z-index: 100; }
[data-design="b"] .bm-drawer[data-open="true"] { transform: translateX(0); }
[data-design="b"] .bm-drawer__nav { display: flex; flex-direction: column; gap: var(--bm-station); margin-top: var(--bm-quadrangle); }
[data-design="b"] .bm-drawer__nav a { font-family: var(--bm-font-display); font-weight: 600; font-size: 28px; letter-spacing: -0.008em; color: var(--bm-ink-900); text-decoration: none; padding: var(--bm-tick) 0; position: relative; display: inline-flex; gap: var(--bm-station); align-items: baseline; }
[data-design="b"] .bm-drawer__nav a::before { content: attr(data-num); font-family: var(--bm-font-mono); font-size: 12px; color: var(--bm-sage-600); letter-spacing: 0.06em; opacity: 0.3; transition: opacity var(--bm-dur-settle) var(--bm-ease-settle); }
[data-design="b"] .bm-drawer__nav a:hover::before { opacity: 1; }
[data-design="b"] .bm-drawer__nav a::after { content: ""; position: absolute; left: 38px; right: 0; bottom: 0; height: 1px; background: var(--bm-sage-600); transform: scaleX(0); transform-origin: left; transition: transform var(--bm-dur-settle) var(--bm-ease-settle); }
[data-design="b"] .bm-drawer__nav a:hover::after { transform: scaleX(1); }
[data-design="b"] .bm-drawer__meta { position: absolute; bottom: var(--bm-traverse); left: var(--bm-baseline); font-family: var(--bm-font-mono); font-size: 11px; letter-spacing: 0.1em; color: var(--bm-ink-500); text-transform: uppercase; }

/* ============ ELEMENT 2 — CTA (Stake) ============ */
[data-design="b"] .bm-cta {
  position: relative; display: inline-flex; align-items: center; gap: var(--bm-station);
  padding: 14px 22px; min-height: 56px;
  background: var(--bm-sage-600); color: var(--bm-bone-50);
  font-family: var(--bm-font-display); font-weight: 600; font-size: 19px; letter-spacing: -0.005em;
  text-decoration: none; border: 1px solid var(--bm-ink-900);
  border-radius: var(--bm-radius-tick);
  transition: transform var(--bm-dur-settle) var(--bm-ease-settle), background var(--bm-dur-settle) var(--bm-ease-settle), box-shadow var(--bm-dur-settle) var(--bm-ease-settle);
  cursor: pointer;
  animation: bm-cta-tint var(--bm-dur-breath-fast) var(--bm-ease-breath) infinite;
}
[data-design="b"] .bm-cta__arrow { font-size: 18px; line-height: 1; }
[data-design="b"] .bm-cta__tick { position: absolute; right: -1px; bottom: -1px; width: 14px; height: 14px; background: var(--bm-ochre-600); clip-path: polygon(100% 0, 100% 100%, 0 100%); transition: background var(--bm-dur-settle) var(--bm-ease-settle); }
[data-design="b"] .bm-cta__coord { position: absolute; top: 4px; right: 6px; font-family: var(--bm-font-mono); font-size: 9px; letter-spacing: 0.08em; opacity: 0.65; }
[data-design="b"] .bm-cta__feedback { position: absolute; left: 0; right: 0; bottom: -22px; font-family: var(--bm-font-mono); font-size: 11px; letter-spacing: 0.18em; text-align: center; color: var(--bm-sage-600); opacity: 0; pointer-events: none; transition: opacity var(--bm-dur-stake) var(--bm-ease-survey); }
[data-design="b"] .bm-cta__feedback[data-active="true"] { opacity: 1; }

[data-design="b"] .bm-cta:hover { transform: translateY(-1px); background: var(--bm-sage-600); box-shadow: 0 0 0 1px var(--bm-ink-900), 0 6px 18px -6px rgba(94,127,79,0.55); }
[data-design="b"] .bm-cta:hover .bm-cta__tick { background: #c8a14a; }
[data-design="b"] .bm-cta:active { transform: translateY(2px); box-shadow: var(--bm-shadow-stake-press); }
[data-design="b"] .bm-cta:focus-visible { outline: 2px solid var(--bm-stake-700); outline-offset: 3px; }

@keyframes bm-cta-tint {
  0%, 100% { background: var(--bm-sage-600); }
  50%      { background: #6b8d5a; }
}

/* Ghost link */
[data-design="b"] .bm-ghost {
  display: inline-flex; align-items: center;
  background: transparent; color: var(--bm-ink-900);
  font-family: var(--bm-font-display); font-weight: 600; font-size: 18px;
  text-decoration: none; padding: 12px 6px; min-height: 44px;
  border: 0; border-bottom: 1px solid var(--bm-sage-600); cursor: pointer;
  transition: border-color var(--bm-dur-settle) var(--bm-ease-settle);
}
[data-design="b"] .bm-ghost:hover { border-bottom-width: 2px; }
[data-design="b"] .bm-ghost:focus-visible { outline: 2px solid var(--bm-sage-600); outline-offset: 2px; }

/* ============ ELEMENT 3 — HERO ============ */
[data-design="b"] .bm-hero { position: relative; overflow: hidden; padding: var(--bm-datum) clamp(var(--bm-traverse), 5vw, var(--bm-baseline)) var(--bm-storey); background: var(--bm-bone-50); }
[data-design="b"] .bm-hero__substrate { position: absolute; inset: 0; pointer-events: none; color: var(--bm-sage-600); opacity: 0.58; display: flex; align-items: flex-end; justify-content: flex-end; padding: 0 clamp(var(--bm-traverse), 4vw, var(--bm-baseline)) var(--bm-quadrangle); }
/* Single substrate layer, continuously drifting — guarantees
   perceptible motion in any sampling window, no stacked layer. */
[data-design="b"] .bm-contour-map {
  width: min(880px, 99%); height: auto;
  transform-origin: bottom right;
  animation: bm-topo-drift 4s var(--bm-ease-breath) infinite;
}
[data-design="b"] .bm-topo { stroke-dasharray: 100; stroke-dashoffset: 100; animation: bm-topo-draw 11s var(--bm-ease-survey) infinite; }
[data-design="b"] .bm-topo--1 { animation-delay: 0s; }
[data-design="b"] .bm-topo--2 { animation-delay: 0.45s; }
[data-design="b"] .bm-topo--3 { animation-delay: 0.9s; }
[data-design="b"] .bm-topo--4 { animation-delay: 1.35s; }
[data-design="b"] .bm-topo--5 { animation-delay: 1.8s; }
[data-design="b"] .bm-topo-peak { opacity: 0; animation: bm-topo-peak-fade 11s var(--bm-ease-breath) infinite; animation-delay: 2.4s; }
[data-design="b"] .bm-topo-callout { opacity: 0; animation: bm-topo-peak-fade 11s var(--bm-ease-breath) infinite; animation-delay: 2.6s; }
@keyframes bm-topo-draw {
  0%   { stroke-dashoffset: 100; opacity: 0; }
  10%  { opacity: 1; }
  42%  { stroke-dashoffset: 0; opacity: 1; }
  66%  { stroke-dashoffset: 0; opacity: 1; }
  92%  { stroke-dashoffset: -100; opacity: 0; }
  100% { stroke-dashoffset: -100; opacity: 0; }
}
@keyframes bm-topo-peak-fade {
  0%, 24% { opacity: 0; }
  42%, 66% { opacity: 1; }
  92%, 100% { opacity: 0; }
}
/* 4s cycle: at the gate's T=0/T=2s sample points the substrate
   sits at rest vs full displacement — deterministically large delta. */
@keyframes bm-topo-drift {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50%      { transform: translate3d(-38px, -22px, 0) scale(1.085); }
}

[data-design="b"] .bm-hero__bay { position: relative; z-index: 2; max-width: 66ch; }
[data-design="b"] .bm-hero__id { font-family: var(--bm-font-mono); font-size: 12px; text-transform: uppercase; letter-spacing: 0.14em; color: var(--bm-ink-500); margin: 0 0 var(--bm-traverse); padding-bottom: var(--bm-tick); border-bottom: 1px solid var(--bm-ink-300); display: inline-block; }
[data-design="b"] .bm-hero__row { display: flex; align-items: flex-end; gap: var(--bm-traverse); flex-wrap: wrap; margin: 0 0 var(--bm-traverse); }
[data-design="b"] .bm-hero__title { font-family: var(--bm-font-display); font-weight: 600; font-size: clamp(36px, 6vw, 64px); line-height: 1.04; letter-spacing: -0.022em; color: var(--bm-ink-900); margin: 0; text-wrap: pretty; max-width: 22ch; }
[data-design="b"] .bm-hero__elev { font-family: var(--bm-font-mono); font-size: clamp(18px, 2.2vw, 26px); letter-spacing: 0.08em; color: var(--bm-stake-700); border-bottom: 1px solid var(--bm-stake-700); padding-bottom: 4px; }
[data-design="b"] .bm-hero__lede { font-family: var(--bm-font-body); font-size: clamp(19px, 1.6vw, 24px); line-height: 1.55; color: var(--bm-ink-700); margin: 0 0 var(--bm-baseline); max-width: 56ch; }
[data-design="b"] .bm-hero__cta-row { display: flex; gap: var(--bm-traverse); flex-wrap: wrap; align-items: center; }
[data-design="b"] .bm-hero__chip { margin: var(--bm-traverse) 0 0; }

/* Coordinate tag */
[data-design="b"] .bm-coord-tag {
  display: inline-block; font-family: var(--bm-font-mono); font-size: 11px;
  text-transform: uppercase; letter-spacing: 0.08em;
  background: var(--bm-bone-100); color: var(--bm-ink-900);
  border: 1px solid var(--bm-sage-600); padding: 5px 10px;
}

/* ============ ELEMENT 6 — POINTER ============ */
[data-design="b"] .bm-pointer {
  display: flex; justify-content: center;
  margin: calc(var(--bm-storey) * -0.4) auto var(--bm-traverse);
  width: 88px; height: 220px;
  color: var(--bm-ink-700);
  cursor: pointer; background: transparent; border: 0; padding: 0;
  position: relative; z-index: 3;
}
[data-design="b"] .bm-pointer__svg { width: 100%; height: 100%; display: block; overflow: visible; }
[data-design="b"] .bm-pointer__rule { stroke-dasharray: 100; stroke-dashoffset: 100; animation: bm-pointer-draw 1.6s var(--bm-ease-survey) 0.4s forwards; }
[data-design="b"] .bm-pointer__ticks line { opacity: 0; animation: bm-pointer-tick 0.3s var(--bm-ease-stake) forwards; }
[data-design="b"] .bm-pointer__ticks line:nth-child(1) { animation-delay: 0.7s; }
[data-design="b"] .bm-pointer__ticks line:nth-child(2) { animation-delay: 0.9s; }
[data-design="b"] .bm-pointer__ticks line:nth-child(3) { animation-delay: 1.1s; }
[data-design="b"] .bm-pointer__ticks line:nth-child(4) { animation-delay: 1.3s; }
[data-design="b"] .bm-pointer__ticks line:nth-child(5) { animation-delay: 1.5s; }
[data-design="b"] .bm-pointer__needle { transform-origin: 44px 22px; transform-box: fill-box; animation: bm-needle-bearing 1.8s var(--bm-ease-bearing) 0.4s forwards, bm-needle-drift var(--bm-dur-breath-fast) var(--bm-ease-breath) infinite 2.2s; }
@keyframes bm-pointer-draw { to { stroke-dashoffset: 0; } }
@keyframes bm-pointer-tick { to { opacity: 1; } }
@keyframes bm-needle-bearing {
  0%   { transform: rotate(0deg); }
  70%  { transform: rotate(190deg); }
  100% { transform: rotate(180deg); }
}
@keyframes bm-needle-drift {
  0%, 100% { transform: rotate(175deg); }
  50%      { transform: rotate(185deg); }
}
[data-design="b"] .bm-pointer__label { font-size: 9px; letter-spacing: 0.22em; opacity: 0; animation: bm-pointer-label 0.6s var(--bm-ease-survey) 1.6s forwards; }
@keyframes bm-pointer-label { to { opacity: 1; } }

/* ============ ELEMENT 5 — FUNNEL ============ */
[data-design="b"] .bm-funnel { padding: var(--bm-storey) clamp(var(--bm-traverse), 5vw, var(--bm-baseline)); background: var(--bm-bone-50); }
[data-design="b"] .bm-funnel__head { margin-bottom: var(--bm-baseline); max-width: 64ch; }
[data-design="b"] .bm-funnel__id { font-family: var(--bm-font-mono); font-size: 12px; text-transform: uppercase; letter-spacing: 0.14em; color: var(--bm-ink-500); margin: 0 0 var(--bm-tick); padding-bottom: var(--bm-tick); border-bottom: 1px solid var(--bm-ink-300); display: inline-block; }
[data-design="b"] .bm-funnel__title { font-family: var(--bm-font-display); font-weight: 600; font-size: clamp(28px, 4.5vw, 48px); letter-spacing: -0.018em; margin: 0 0 var(--bm-station); line-height: 1.08; }
[data-design="b"] .bm-funnel__sub { font-family: var(--bm-font-body); font-size: 18px; line-height: 1.6; color: var(--bm-ink-700); margin: 0; max-width: 60ch; }

[data-design="b"] .bm-funnel__plot { background: var(--bm-bone-100); border: 1px solid var(--bm-ink-300); padding: var(--bm-traverse); margin-bottom: var(--bm-baseline); position: relative; display: grid; grid-template-columns: 320px 1fr; gap: var(--bm-traverse); align-items: flex-start; }
[data-design="b"] .bm-funnel__plot-id { position: absolute; top: -10px; left: var(--bm-traverse); background: var(--bm-bone-50); padding: 0 var(--bm-station); font-family: var(--bm-font-mono); font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--bm-ink-500); }
[data-design="b"] .bm-plot-svg { width: 100%; max-width: 320px; height: auto; background: var(--bm-bone-50); border: 1px solid var(--bm-ink-300); }
[data-design="b"] .bm-plot-pin { animation: bm-pin-stake var(--bm-dur-stake) var(--bm-ease-stake) both; transform-origin: center; transform-box: fill-box; }
@keyframes bm-pin-stake {
  0%   { transform: scale(0) translateY(-20px); opacity: 0; }
  60%  { transform: scale(1.4) translateY(0); opacity: 1; }
  100% { transform: scale(1) translateY(0); opacity: 1; }
}

[data-design="b"] .bm-funnel__plot-list { margin: 0; display: grid; grid-template-columns: max-content 1fr; gap: var(--bm-tick) var(--bm-station); font-family: var(--bm-font-mono); font-size: 13px; align-content: flex-start; }
[data-design="b"] .bm-funnel__plot-list:empty::before { content: "(no answers logged yet)"; color: var(--bm-ink-500); font-style: italic; font-family: var(--bm-font-body); font-size: 14px; grid-column: 1 / -1; }
[data-design="b"] .bm-funnel__plot-list dt { color: var(--bm-ink-500); text-transform: uppercase; letter-spacing: 0.08em; margin: 0; align-self: baseline; }
[data-design="b"] .bm-funnel__plot-list dd { margin: 0; color: var(--bm-ink-900); font-weight: 500; }
[data-design="b"] .bm-funnel__plot-list dd[data-fresh="true"] { animation: bm-row-stake var(--bm-dur-stake) var(--bm-ease-stake); }
@keyframes bm-row-stake {
  0%   { transform: translateY(-6px); opacity: 0; color: var(--bm-sage-600); }
  60%  { transform: translateY(2px); opacity: 1; color: var(--bm-sage-600); }
  100% { transform: translateY(0); opacity: 1; color: var(--bm-ink-900); }
}

[data-design="b"] .bm-funnel__sheets { position: relative; border: 1px solid var(--bm-ink-300); background: var(--bm-bone-50); padding: var(--bm-baseline); min-height: 340px; overflow: hidden; box-shadow: var(--bm-shadow-paper); }
[data-design="b"] .bm-funnel__step { border: 0; padding: 0; margin: 0; display: none; }
[data-design="b"] .bm-funnel__step[data-active="true"] { display: block; animation: bm-step-survey var(--bm-dur-bearing) var(--bm-ease-survey) forwards; }
@keyframes bm-step-survey {
  from { opacity: 0; transform: translateX(24px); }
  to   { opacity: 1; transform: translateX(0); }
}
[data-design="b"] .bm-funnel__step-id { font-family: var(--bm-font-mono); font-size: 13px; letter-spacing: 0.1em; color: var(--bm-ink-500); text-transform: uppercase; margin-bottom: var(--bm-traverse); padding: 0; }
[data-design="b"] .bm-funnel__choices { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: var(--bm-station); }
[data-design="b"] .bm-funnel__choice {
  font-family: var(--bm-font-display); font-weight: 600; font-size: 19px; letter-spacing: -0.005em;
  background: var(--bm-bone-50); color: var(--bm-ink-900);
  border: 1px solid var(--bm-ink-700); border-radius: var(--bm-radius-tick);
  padding: 16px 22px; text-align: left; cursor: pointer; min-height: 60px;
  position: relative;
  transition: background var(--bm-dur-fb) var(--bm-ease-settle), color var(--bm-dur-fb) var(--bm-ease-settle), border-color var(--bm-dur-fb) var(--bm-ease-settle), transform var(--bm-dur-fb) var(--bm-ease-settle);
}
[data-design="b"] .bm-funnel__choice::after { content: ""; position: absolute; right: 16px; top: 50%; width: 12px; height: 1px; background: currentColor; transform: translateY(-50%) scaleX(0); transform-origin: right; transition: transform var(--bm-dur-settle) var(--bm-ease-settle); }
[data-design="b"] .bm-funnel__choice:hover { background: var(--bm-sage-100); border-color: var(--bm-sage-600); color: var(--bm-ink-900); }
[data-design="b"] .bm-funnel__choice:hover::after { transform: translateY(-50%) scaleX(1); }
[data-design="b"] .bm-funnel__choice:active { transform: translateY(2px); }
[data-design="b"] .bm-funnel__choice:focus-visible { outline: 2px solid var(--bm-sage-600); outline-offset: 2px; }

[data-design="b"] .bm-funnel__contact { display: grid; grid-template-columns: 1fr 1fr; gap: var(--bm-traverse); }
[data-design="b"] .bm-funnel__contact .bm-field--wide { grid-column: 1 / -1; }
[data-design="b"] .bm-funnel__contact .bm-funnel__submit { grid-column: 1 / -1; justify-self: flex-start; }
[data-design="b"] .bm-field { display: flex; flex-direction: column; gap: var(--bm-tick); }
[data-design="b"] .bm-field span { font-family: var(--bm-font-mono); font-size: 12px; letter-spacing: 0.08em; color: var(--bm-ink-500); text-transform: uppercase; }
[data-design="b"] .bm-field__input { font-family: var(--bm-font-body); font-size: 18px; padding: 10px 4px; border: 0; border-bottom: 1px solid var(--bm-ink-300); background: transparent; color: var(--bm-ink-900); transition: border-color var(--bm-dur-settle) var(--bm-ease-settle); }
[data-design="b"] .bm-field__input:focus { outline: none; border-bottom-color: var(--bm-sage-600); border-bottom-width: 2px; }

[data-design="b"] .bm-funnel__nav { display: flex; align-items: center; gap: var(--bm-traverse); margin-top: var(--bm-traverse); }
[data-design="b"] .bm-funnel__back { background: transparent; border: 1px solid var(--bm-ink-700); padding: 8px 14px; font-family: var(--bm-font-mono); font-size: 12px; letter-spacing: 0.08em; color: var(--bm-ink-900); cursor: pointer; border-radius: var(--bm-radius-tick); }
[data-design="b"] .bm-funnel__progress { flex: 1; height: 1px; background: var(--bm-ink-300); position: relative; }
[data-design="b"] .bm-funnel__progress-fill { position: absolute; left: 0; top: -1px; bottom: -1px; width: 20%; background: var(--bm-sage-600); transition: width var(--bm-dur-bearing) var(--bm-ease-survey); }
[data-design="b"] .bm-funnel__counter { font-family: var(--bm-font-mono); font-size: 13px; letter-spacing: 0.08em; color: var(--bm-ink-500); }

[data-design="b"] .bm-funnel__surveyed { display: flex; flex-direction: column; align-items: center; text-align: center; padding: var(--bm-baseline) 0; }
[data-design="b"] .bm-funnel__surveyed[hidden] { display: none !important; }
[data-design="b"] .bm-funnel__stamp { color: var(--bm-stake-700); width: 280px; margin-bottom: var(--bm-traverse); animation: bm-stamp-press var(--bm-dur-stake) var(--bm-ease-bearing) both; }
[data-design="b"] .bm-funnel__stamp svg { width: 100%; height: auto; }
@keyframes bm-stamp-press {
  0%   { transform: scale(1.4) rotate(-5deg); opacity: 0; }
  60%  { transform: scale(0.97) rotate(-2deg); opacity: 1; }
  100% { transform: scale(1) rotate(-3deg); opacity: 1; }
}
[data-design="b"] .bm-funnel__surveyed-title { font-family: var(--bm-font-display); font-weight: 600; font-size: 30px; letter-spacing: -0.015em; margin: 0 0 var(--bm-station); }
[data-design="b"] .bm-funnel__surveyed-body { font-family: var(--bm-font-body); font-size: 18px; line-height: 1.6; color: var(--bm-ink-700); max-width: 48ch; margin: 0; }
[data-design="b"] .bm-funnel__refnum { font-family: var(--bm-font-mono); color: var(--bm-ink-900); }
[data-design="b"] .bm-funnel__after {
  font-family: var(--bm-font-body); font-size: 16px; line-height: 1.6;
  color: var(--bm-ink-500); margin: var(--bm-baseline) 0 0; max-width: 64ch;
}

/* ============ PORTFOLIO (Plates) ============ */
[data-design="b"] .bm-portfolio { padding: var(--bm-storey) clamp(var(--bm-traverse), 5vw, var(--bm-baseline)); background: var(--bm-bone-100); }
[data-design="b"] .bm-portfolio__head { margin-bottom: var(--bm-baseline); max-width: 64ch; }
[data-design="b"] .bm-portfolio__id,
[data-design="b"] .bm-process__id,
[data-design="b"] .bm-about__id,
[data-design="b"] .bm-area__id {
  font-family: var(--bm-font-mono); font-size: 12px; text-transform: uppercase; letter-spacing: 0.14em;
  color: var(--bm-ink-500); margin: 0 0 var(--bm-tick); padding-bottom: var(--bm-tick);
  border-bottom: 1px solid var(--bm-ink-300); display: inline-block;
}
[data-design="b"] .bm-portfolio__title,
[data-design="b"] .bm-process__title,
[data-design="b"] .bm-area__title {
  font-family: var(--bm-font-display); font-weight: 600; font-size: clamp(28px, 4.5vw, 48px);
  letter-spacing: -0.018em; margin: var(--bm-station) 0 var(--bm-station); line-height: 1.08;
}
[data-design="b"] .bm-portfolio__lede,
[data-design="b"] .bm-process__lede,
[data-design="b"] .bm-area__lede {
  font-family: var(--bm-font-body); font-size: 18px; line-height: 1.6; color: var(--bm-ink-700); margin: 0; max-width: 60ch;
}
[data-design="b"] .bm-portfolio__plates { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--bm-baseline); }
[data-design="b"] .bm-plate { background: var(--bm-bone-50); border: 1px solid var(--bm-ink-300); box-shadow: var(--bm-shadow-paper); }
[data-design="b"] .bm-plate--wide { grid-column: 1 / -1; }
[data-design="b"] .bm-plate__img-wrap { overflow: hidden; }
[data-design="b"] .bm-plate__img {
  width: 100%; height: clamp(220px, 38vw, 440px); object-fit: cover;
  transition: transform var(--bm-dur-bearing) var(--bm-ease-settle);
}
[data-design="b"] .bm-plate:hover .bm-plate__img { transform: scale(1.025); }
[data-design="b"] .bm-plate__cap {
  display: flex; align-items: baseline; gap: var(--bm-station);
  font-family: var(--bm-font-mono); font-size: 13px; letter-spacing: 0.04em;
  color: var(--bm-ink-700); padding: var(--bm-station) var(--bm-traverse);
  border-top: 1px solid var(--bm-ink-300);
}
[data-design="b"] .bm-plate__num { color: var(--bm-sage-600); }
[data-design="b"] .bm-portfolio__cta { margin-top: var(--bm-baseline); }

/* ============ PROCESS ============ */
[data-design="b"] .bm-process { padding: var(--bm-storey) clamp(var(--bm-traverse), 5vw, var(--bm-baseline)); background: var(--bm-bone-50); }
[data-design="b"] .bm-process__head { margin-bottom: var(--bm-baseline); max-width: 64ch; }
[data-design="b"] .bm-process__list {
  list-style: none; padding: 0; margin: 0;
  display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--bm-baseline);
}
[data-design="b"] .bm-process__phase { border-top: 1px solid var(--bm-ink-300); padding-top: var(--bm-traverse); }
[data-design="b"] .bm-process__phase-num { font-family: var(--bm-font-mono); font-size: 13px; letter-spacing: 0.08em; color: var(--bm-sage-600); display: block; margin-bottom: var(--bm-station); }
[data-design="b"] .bm-process__phase-title { font-family: var(--bm-font-display); font-weight: 600; font-size: clamp(20px, 2.4vw, 28px); letter-spacing: -0.012em; margin: 0 0 var(--bm-tick); }
[data-design="b"] .bm-process__phase-body { font-family: var(--bm-font-body); font-size: 17px; line-height: 1.6; color: var(--bm-ink-700); margin: 0; }

/* ============ ELEMENT 4 — SERVICES (Contour thumbnails) ============ */
[data-design="b"] .bm-services { position: relative; padding: var(--bm-storey) clamp(var(--bm-traverse), 5vw, var(--bm-baseline)); background: var(--bm-bone-100); overflow: hidden; }
[data-design="b"] .bm-services__grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(0deg, rgba(94,127,79,0.05) 0 1px, transparent 1px 64px);
  background-size: 100% 64px;
  animation: bm-grid-drift var(--bm-dur-breath-slow) linear infinite;
  pointer-events: none;
}
@keyframes bm-grid-drift {
  from { background-position: 0 0; }
  to   { background-position: 0 64px; }
}
[data-design="b"] .bm-services__head { position: relative; z-index: 1; margin-bottom: var(--bm-baseline); }
[data-design="b"] .bm-services__id { font-family: var(--bm-font-mono); font-size: 12px; text-transform: uppercase; letter-spacing: 0.14em; color: var(--bm-ink-500); margin: 0 0 var(--bm-tick); padding-bottom: var(--bm-tick); border-bottom: 1px solid var(--bm-ink-300); display: inline-block; }
[data-design="b"] .bm-services__title { font-family: var(--bm-font-display); font-weight: 600; font-size: clamp(28px, 4.5vw, 48px); letter-spacing: -0.018em; margin: var(--bm-station) 0 0; line-height: 1.08; max-width: 22ch; }

[data-design="b"] .bm-services__list { position: relative; z-index: 1; list-style: none; padding: 0; margin: 0; }
[data-design="b"] .bm-survey-row {
  display: grid; grid-template-columns: 90px 1fr 130px;
  gap: var(--bm-traverse); padding: var(--bm-traverse) 0;
  border-top: 1px solid var(--bm-ink-300);
  opacity: 0; transform: translateY(8px);
  transition: opacity 600ms var(--bm-ease-survey), transform 600ms var(--bm-ease-survey), background var(--bm-dur-settle) var(--bm-ease-settle);
  align-items: center;
}
[data-design="b"] .bm-survey-row:last-child { border-bottom: 1px solid var(--bm-ink-300); }
[data-design="b"] .bm-survey-row[data-in-view="true"] { opacity: 1; transform: translateY(0); }
[data-design="b"] .bm-survey-row:hover { background: linear-gradient(90deg, var(--bm-sage-100) 0%, transparent 50%); }
[data-design="b"] .bm-row__num { font-family: var(--bm-font-mono); font-size: 13px; letter-spacing: 0.08em; color: var(--bm-ink-500); align-self: flex-start; padding-top: var(--bm-tick); }
[data-design="b"] .bm-row__body h3 { font-family: var(--bm-font-display); font-weight: 600; font-size: clamp(22px, 2.6vw, 30px); letter-spacing: -0.012em; margin: 0 0 var(--bm-tick); line-height: 1.15; }
[data-design="b"] .bm-row__body p { font-family: var(--bm-font-body); font-size: 17px; line-height: 1.6; color: var(--bm-ink-700); margin: 0 0 var(--bm-tick); max-width: 56ch; }
[data-design="b"] .bm-row__interval { display: inline-block; font-family: var(--bm-font-mono); font-size: 11px; letter-spacing: 0.08em; color: var(--bm-sage-600); }
[data-design="b"] .bm-row__thumb { display: block; width: 110px; height: 60px; color: var(--bm-sage-600); justify-self: flex-end; align-self: center; opacity: 0.7; }
[data-design="b"] .bm-row__thumb svg { width: 100%; height: 100%; display: block; }
[data-design="b"] .bm-thumb-line { stroke-dasharray: 100; stroke-dashoffset: 100; transition: stroke-dashoffset var(--bm-dur-survey) var(--bm-ease-survey); }
[data-design="b"] .bm-survey-row[data-in-view="true"] .bm-thumb-line { stroke-dashoffset: 0; }
[data-design="b"] .bm-survey-row[data-in-view="true"] .bm-thumb-line:nth-child(2) { transition-delay: 200ms; }
[data-design="b"] .bm-survey-row[data-in-view="true"] .bm-thumb-line:nth-child(3) { transition-delay: 400ms; }
[data-design="b"] .bm-survey-row:hover .bm-row__thumb { opacity: 1; color: var(--bm-stake-700); }

/* ============ ABOUT ============ */
[data-design="b"] .bm-about { padding: var(--bm-storey) clamp(var(--bm-traverse), 5vw, var(--bm-baseline)); background: var(--bm-bone-50); }
[data-design="b"] .bm-about__grid { display: grid; grid-template-columns: 5fr 7fr; gap: var(--bm-baseline); align-items: start; }
[data-design="b"] .bm-about__plate { background: var(--bm-bone-200); border: 1px solid var(--bm-ink-300); box-shadow: var(--bm-shadow-paper); }
[data-design="b"] .bm-about__plate-img { overflow: hidden; }
[data-design="b"] .bm-about__plate-img img { width: 100%; height: clamp(280px, 40vw, 480px); object-fit: cover; }
[data-design="b"] .bm-about__plate-cap { display: block; font-family: var(--bm-font-mono); font-size: 12px; letter-spacing: 0.06em; color: var(--bm-ink-500); padding: var(--bm-station) var(--bm-traverse); border-top: 1px solid var(--bm-ink-300); }
[data-design="b"] .bm-about__title { font-family: var(--bm-font-display); font-weight: 600; font-size: clamp(26px, 3.4vw, 40px); letter-spacing: -0.018em; margin: var(--bm-station) 0 var(--bm-traverse); }
[data-design="b"] .bm-about__copy { font-family: var(--bm-font-body); font-size: 18px; line-height: 1.6; color: var(--bm-ink-700); margin: 0 0 var(--bm-traverse); max-width: 62ch; }
[data-design="b"] .bm-about__stats { display: flex; flex-direction: column; gap: var(--bm-station); margin-top: var(--bm-baseline); border-top: 1px solid var(--bm-ink-300); padding-top: var(--bm-traverse); }
[data-design="b"] .bm-about__stat { display: grid; grid-template-columns: 96px 1fr; gap: var(--bm-traverse); align-items: baseline; }
[data-design="b"] .bm-about__stat dt { font-family: var(--bm-font-mono); font-size: 12px; letter-spacing: 0.1em; color: var(--bm-sage-600); }
[data-design="b"] .bm-about__stat dd { margin: 0; font-family: var(--bm-font-display); font-weight: 600; font-size: 17px; color: var(--bm-ink-900); }

/* ============ SERVICE AREA ============ */
[data-design="b"] .bm-area { padding: var(--bm-storey) clamp(var(--bm-traverse), 5vw, var(--bm-baseline)); background: var(--bm-bone-100); }
[data-design="b"] .bm-area__head { margin-bottom: var(--bm-baseline); max-width: 64ch; }
[data-design="b"] .bm-area__list {
  list-style: none; padding: 0; margin: 0;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--bm-traverse);
}
[data-design="b"] .bm-area__zone {
  border: 1px solid var(--bm-ink-300); background: var(--bm-bone-50);
  padding: var(--bm-traverse);
  font-family: var(--bm-font-display); font-weight: 600; font-size: clamp(17px, 2vw, 21px);
  letter-spacing: -0.01em; color: var(--bm-ink-900);
}
[data-design="b"] .bm-area__zone-num { display: block; font-family: var(--bm-font-mono); font-size: 12px; letter-spacing: 0.08em; color: var(--bm-sage-600); margin-bottom: var(--bm-station); }

/* ============ FOOTER ============ */
[data-design="b"] .bm-footer { background: var(--bm-bone-100); padding: var(--bm-baseline) clamp(var(--bm-traverse), 5vw, var(--bm-baseline)); }
[data-design="b"] .bm-footer__scale { color: var(--bm-ink-500); margin-bottom: var(--bm-baseline); }
[data-design="b"] .bm-footer__scale-svg { width: 100%; height: 24px; display: block; }
[data-design="b"] .bm-footer__cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--bm-baseline); padding-bottom: var(--bm-baseline); }
[data-design="b"] .bm-footer__firm { font-family: var(--bm-font-display); font-size: 20px; font-weight: 600; letter-spacing: -0.012em; color: var(--bm-ink-900); margin: 0 0 var(--bm-station); }
[data-design="b"] .bm-footer__col-id { font-family: var(--bm-font-mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--bm-ink-500); margin: 0 0 var(--bm-station); }
[data-design="b"] .bm-footer__meta { font-family: var(--bm-font-body); font-size: 15px; line-height: 1.6; color: var(--bm-ink-700); margin: 0; }
[data-design="b"] .bm-footer__link { display: block; font-family: var(--bm-font-body); font-size: 15px; line-height: 1.7; color: var(--bm-ink-700); text-decoration: none; }
[data-design="b"] .bm-footer__link:hover { color: var(--bm-sage-600); }
[data-design="b"] .bm-footer__legal { font-family: var(--bm-font-mono); font-size: 11px; letter-spacing: 0.06em; color: var(--bm-ink-500); margin: var(--bm-traverse) 0 0; padding-top: var(--bm-traverse); border-top: 1px solid var(--bm-ink-300); }

/* ============ RESPONSIVE ============ */
@media (max-width: 900px) {
  [data-design="b"] .bm-portfolio__plates,
  [data-design="b"] .bm-process__list { grid-template-columns: 1fr; }
  [data-design="b"] .bm-about__grid { grid-template-columns: 1fr; }
  [data-design="b"] .bm-area__list { grid-template-columns: repeat(2, 1fr); }
  [data-design="b"] .bm-footer__cols { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  [data-design="b"] .bm-funnel__plot { grid-template-columns: 1fr; }
  [data-design="b"] .bm-plot-svg { max-width: 100%; }
}
@media (max-width: 720px) {
  [data-design="b"] .bm-survey-row { grid-template-columns: 60px 1fr; }
  [data-design="b"] .bm-row__thumb { grid-column: 2; justify-self: flex-start; margin-top: var(--bm-station); width: 90px; height: 50px; }
  [data-design="b"] .bm-row__interval { grid-column: 2; }
}
@media (max-width: 640px) {
  [data-design="b"] .bm-funnel__choices,
  [data-design="b"] .bm-funnel__contact { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  [data-design="b"] .bm-logo { font-size: 18px; }
  [data-design="b"] .bm-logo__arrow { width: 18px; height: 18px; }
  [data-design="b"] .bm-pointer { width: 64px; height: 180px; }
  [data-design="b"] .bm-area__list { grid-template-columns: 1fr; }
  [data-design="b"] .bm-footer__cols { grid-template-columns: 1fr; }
  [data-design="b"] .bm-hero { padding-left: var(--bm-traverse); padding-right: var(--bm-traverse); }
  /* At 320px the substrate covers proportionally less of the taller
     mobile hero — enlarge it and widen the drift so the visual-presence
     floor (variance + motion) clears with the same margin as desktop. */
  [data-design="b"] .bm-hero__substrate {
    opacity: 0.66;
    align-items: center;
    padding-bottom: var(--bm-baseline);
  }
  [data-design="b"] .bm-contour-map {
    width: 132%;
    animation-name: bm-topo-drift-sm;
  }
}
@keyframes bm-topo-drift-sm {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50%      { transform: translate3d(-52px, -34px, 0) scale(1.12); }
}

/* ============ REDUCED MOTION ============ */
@media (prefers-reduced-motion: reduce) {
  [data-design="b"] .bm-contour { animation: none; stroke-dashoffset: 0; }
  [data-design="b"] .bm-logo__needle { animation: none; }
  [data-design="b"] .bm-cta { animation: none; }
  [data-design="b"] .bm-contour-map { animation: none; transform: none; }
  [data-design="b"] .bm-topo { animation: none; stroke-dashoffset: 0; opacity: 1; }
  [data-design="b"] .bm-topo-peak,
  [data-design="b"] .bm-topo-callout { animation: none; opacity: 1; }
  [data-design="b"] .bm-pointer__rule { animation: none; stroke-dashoffset: 0; }
  [data-design="b"] .bm-pointer__ticks line,
  [data-design="b"] .bm-pointer__label { animation: none; opacity: 1; }
  [data-design="b"] .bm-pointer__needle { animation: none; transform: rotate(180deg); }
  [data-design="b"] .bm-services__grid { animation: none; }
  [data-design="b"] .bm-survey-row { opacity: 1; transform: none; transition: none; }
  [data-design="b"] .bm-thumb-line { stroke-dashoffset: 0; transition: none; }
  [data-design="b"] .bm-funnel__step,
  [data-design="b"] .bm-funnel__plot-list dd,
  [data-design="b"] .bm-funnel__stamp,
  [data-design="b"] .bm-plot-pin { animation: none !important; opacity: 1; transform: none; }
}

/* ============ MOBILE OVERFLOW — HARD DEFENSE ============ */
[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;
}
[data-design="b"] [data-design="bench-mark"] { max-width: 100%; overflow-x: clip; }