/* VNStone concept — a stone yard drawn to one true scale.
   Every rule is scoped to [data-site="vnstone"]; the type family is
   site-prefixed so @font-face cannot leak into another site. */

/* Geologica variable (wght 100–900, SHRP 0–100, slnt −12–0). The slant axis is
   exposed through font-style: oblique, so `oblique 10deg` uses the real axis. */
@font-face {
  font-family: "VNStone Geologica";
  font-style: oblique 0deg 12deg;
  font-weight: 100 900;
  font-display: swap;
  src: url("./vn-geologica-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "VNStone Geologica";
  font-style: oblique 0deg 12deg;
  font-weight: 100 900;
  font-display: swap;
  src: url("./vn-geologica-vietnamese.woff2") format("woff2");
  unicode-range: U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB;
}
/* Metric-matched fallbacks (text and display weights) keep the swap from shifting layout. */
@font-face {
  font-family: "VNStone Fallback";
  font-weight: 100 599;
  src: local("Arial"), local("ArialMT"), local("Helvetica Neue"), local("Helvetica");
  size-adjust: 107.5%;
  ascent-override: 90.7%;
  descent-override: 25.6%;
  line-gap-override: 0%;
}
@font-face {
  font-family: "VNStone Fallback";
  font-weight: 600 900;
  src: local("Arial Bold"), local("Arial-BoldMT"), local("Helvetica Neue Bold"), local("Helvetica Bold");
  size-adjust: 105.5%;
  ascent-override: 92.4%;
  descent-override: 26.1%;
  line-gap-override: 0%;
}

[data-site="vnstone"] {
  --canvas: #efebe4;
  --surface: #f8f6f2;
  --text: #16181a;
  --muted: #55595e;
  --basalt: #141516;
  --on-basalt: #edeae4;
  --on-basalt-muted: #b4b0a9;
  --hero-ink: #1c2630;
  --accent: #c23a1b;
  --accent-ink: #9e2c12;
  --accent-dark: #ff7a57;
  --rule: #cfc8bc;
  --field: #8e887d;
  --font: "VNStone Geologica", "VNStone Fallback", system-ui, sans-serif;
  --gutter: clamp(1rem, 3vw, 2.5rem);
  --container: 80rem;
  --header-h: 3.75rem;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --fs-label: 0.75rem;
  --fs-lede: clamp(1.125rem, 1rem + 0.55vw, 1.375rem);
  --fs-h2: clamp(2rem, 1.1rem + 3.4vw, 3.75rem);
  --fs-h1: clamp(2.75rem, min(1rem + 6.4vw, 1rem + 9svh), 7rem);
  --sharp: "SHRP" 100;

  margin: 0;
  background: var(--canvas);
  color: var(--text);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.55;
  font-variation-settings: "SHRP" 0;
  -webkit-font-smoothing: antialiased;
  color-scheme: light;
}
[data-site="vnstone"] *,
[data-site="vnstone"] *::before,
[data-site="vnstone"] *::after { box-sizing: border-box; }
[data-site="vnstone"] [hidden] { display: none !important; }
[data-site="vnstone"] img { display: block; max-width: 100%; height: auto; }
[data-site="vnstone"] :is(h1, h2, h3, p, figure, dl, dd) { margin: 0; }
[data-site="vnstone"] :is(h1, h2, h3) { font-variation-settings: var(--sharp); text-wrap: balance; }
[data-site="vnstone"] p { text-wrap: pretty; }
[data-site="vnstone"] a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 0.2em; }
[data-site="vnstone"] :focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
[data-site="vnstone"] :is(.source, .slip, .foot, .concept, .hero-foot) :focus-visible { outline-color: var(--accent-dark); }
/* Keep anchors and keyboard focus clear of the sticky masthead (WCAG 2.2 SC 2.4.11). */
[data-site="vnstone"] :is(section[id], .row) { scroll-margin-top: calc(var(--header-h) + 1rem); }
[data-site="vnstone"] :is(a[href], button, input, select) { scroll-margin-block: calc(var(--header-h) + 1rem) 1rem; }
[data-site="vnstone"] .visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0;
}
[data-site="vnstone"] .wrap { width: min(100% - 2 * var(--gutter), var(--container)); margin-inline: auto; }

/* ---------- skip, concept notice, masthead ---------- */
[data-site="vnstone"] .skip {
  position: absolute; left: 1rem; top: 0.5rem; z-index: 50;
  background: var(--text); color: var(--surface); padding: 0.75rem 1rem;
  transform: translateY(-160%);
}
[data-site="vnstone"] .skip:focus { transform: none; }
[data-site="vnstone"] .concept {
  display: flex; gap: 0.75rem; align-items: baseline;
  background: var(--basalt); color: var(--on-basalt-muted);
  font-size: 0.8125rem; line-height: 1.4; padding: 0.55rem var(--gutter);
}
[data-site="vnstone"] .concept-tag {
  flex: none; color: var(--accent-dark); font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.12em; font-size: 0.75rem;
}
[data-site="vnstone"] .masthead {
  position: sticky; top: 0; z-index: 20;
  background: var(--canvas);
  background: color-mix(in srgb, var(--canvas) 95%, transparent);
  border-bottom: 1px solid var(--rule);
}
[data-site="vnstone"] .masthead-row { display: flex; align-items: center; gap: 0.75rem; min-height: var(--header-h); }
[data-site="vnstone"] .wordmark { display: grid; gap: 0.2rem; margin-right: auto; text-decoration: none; line-height: 1; padding-block: 0.35rem; }
[data-site="vnstone"] .wm { font-weight: 860; font-variation-settings: var(--sharp); letter-spacing: -0.01em; }
[data-site="vnstone"] .wordmark .wm { font-size: 1.3125rem; }
[data-site="vnstone"] .wm b { color: var(--accent); font-weight: inherit; }
[data-site="vnstone"] .wm-sub { font-size: 0.6875rem; font-weight: 560; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); }
[data-site="vnstone"] .wm-sub-long { display: none; }
[data-site="vnstone"] .menu-btn {
  anchor-name: --vn-menu;
  display: inline-flex; align-items: center; min-height: 2.75rem; padding: 0 0.9rem;
  font: inherit; font-size: 0.875rem; font-weight: 620; color: var(--text);
  background: transparent; border: 1.5px solid var(--text); border-radius: 0.125rem; cursor: pointer;
}
[data-site="vnstone"] .menu-btn:hover { background: var(--text); color: var(--canvas); }
/* Small screens: the section list is a native popover (light-dismiss, Esc, focus handled by the platform),
   tethered to its button with anchor positioning where supported. */
[data-site="vnstone"] .nav[popover] {
  position: fixed; inset: auto; top: calc(var(--header-h) + 0.5rem); right: var(--gutter); margin: 0;
  width: min(20rem, 100% - 2 * var(--gutter)); padding: 0.5rem 0; color: var(--text); background: var(--surface);
  border: 1px solid var(--rule); box-shadow: 0 1.25rem 2.5rem rgb(20 21 22 / 0.18);
}
/* tethered to the Menu button vertically; horizontally it always stays inside the gutters */
@supports (anchor-name: --vn-menu) {
  [data-site="vnstone"] .nav[popover] { position-anchor: --vn-menu; top: anchor(bottom); margin-top: 0.5rem; }
}
[data-site="vnstone"] .nav ul { display: flex; flex-direction: column; list-style: none; margin: 0; padding: 0; }
[data-site="vnstone"] .nav a {
  display: block; position: relative; white-space: nowrap; text-decoration: none;
  font-size: 1rem; font-weight: 540; padding: 0.8rem 1.25rem;
}
[data-site="vnstone"] .nav a:hover { background: var(--canvas); }

/* ---------- buttons ---------- */
[data-site="vnstone"] .btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  min-height: 2.875rem; max-width: 100%; padding: 0.55rem 1.25rem; border: 1.5px solid transparent; border-radius: 0.125rem;
  font: inherit; font-size: 0.9375rem; font-weight: 640; line-height: 1.2; text-align: center; text-decoration: none;
  cursor: pointer; transition: background-color 0.16s, color 0.16s, border-color 0.16s, transform 0.16s;
}
[data-site="vnstone"] .btn:active { transform: translateY(1px); }
[data-site="vnstone"] .btn-primary { background: var(--accent); color: #fff; }
[data-site="vnstone"] .btn-primary:hover { background: var(--accent-ink); }
[data-site="vnstone"] .btn-line { border-color: currentColor; color: var(--text); background: var(--surface); }
[data-site="vnstone"] .btn-line:hover { background: var(--text); color: var(--canvas); }
[data-site="vnstone"] .btn-line--dark { color: var(--on-basalt); background: transparent; }
[data-site="vnstone"] .btn-line--dark:hover { background: var(--on-basalt); color: var(--basalt); }
[data-site="vnstone"] .btn-quote { min-height: 2.75rem; padding-inline: 0.9rem; font-size: 0.875rem; white-space: nowrap; }
[data-site="vnstone"] .q-short { display: none; }
@media (max-width: 23.99rem) {
  [data-site="vnstone"] .q-long { display: none; }
  [data-site="vnstone"] .q-short { display: inline; }
}

/* ---------- shared section grammar ---------- */
[data-site="vnstone"] .eyebrow { font-size: var(--fs-label); font-weight: 650; text-transform: uppercase; letter-spacing: 0.12em; font-variation-settings: "SHRP" 60; }
[data-site="vnstone"] .block-no { color: var(--accent-ink); font-variant-numeric: tabular-nums; }
[data-site="vnstone"] .block-no::after { content: " /"; color: var(--muted); }
[data-site="vnstone"] h2 { font-size: var(--fs-h2); font-weight: 780; line-height: 1.02; letter-spacing: -0.035em; }
[data-site="vnstone"] .section-head { display: grid; gap: 1rem; margin-bottom: clamp(2.25rem, 5vw, 4rem); max-width: 58rem; }
[data-site="vnstone"] .section-intro { color: var(--muted); max-width: 40rem; }
[data-site="vnstone"] .fine { font-size: 0.8125rem; color: var(--muted); }
[data-site="vnstone"] :is(.yard, .ledger, .core, .quote) { padding-block: clamp(4rem, 9vw, 8rem); }

/* ---------- hero: Vietnamese basalt first, the headline in its overcast sky ---------- */
[data-site="vnstone"] .hero {
  position: relative; isolation: isolate; overflow: clip;
  display: grid; grid-template-rows: 1fr auto;
  min-height: clamp(34rem, calc(100svh - 7rem), 58rem);
  background: #e7ebef; color: var(--text);
}
[data-site="vnstone"] .hero-photo { position: absolute; inset: 0; }
[data-site="vnstone"] .hero-photo picture { position: absolute; inset: 0; z-index: -2; }
[data-site="vnstone"] .hero-photo img { width: 100%; height: 100%; object-fit: cover; object-position: 58% 72%; }
[data-site="vnstone"] .hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  /* light veil for the copy; small screens run it deep because the copy does */
  background: linear-gradient(180deg, rgb(246 248 250 / 0.92) 0%, rgb(246 248 250 / 0.74) 50%, rgb(246 248 250 / 0) 66%);
  mask-image: linear-gradient(180deg, #000 0 70%, transparent 92%);
}
/* dark base for the facts line and the scale preview */
[data-site="vnstone"] .hero::after {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: linear-gradient(0deg, rgb(12 13 14 / 0.95) 0%, rgb(12 13 14 / 0.8) 20%, rgb(12 13 14 / 0) 38%);
}
[data-site="vnstone"] .hero-photo figcaption {
  position: absolute; z-index: 2; left: var(--gutter); right: var(--gutter); bottom: 0.6rem;
  font-size: 0.75rem; line-height: 1.4; color: rgb(237 234 228 / 0.86);
}
/* Saw pass: a red kerf crosses the stone once, echoing "cut to your size". */
[data-site="vnstone"] .hero-kerf {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background: linear-gradient(90deg, transparent calc(100% - 7rem), rgb(255 255 255 / 0.22) calc(100% - 3px), var(--accent) calc(100% - 3px));
  transform: translateX(-101%);
}
[data-site="vnstone"] .hero-copy { position: relative; z-index: 1; align-self: start; padding-block: clamp(2rem, 5.5vw, 4.75rem) 2rem; }
[data-site="vnstone"] .hero .eyebrow { color: var(--hero-ink); margin-bottom: 1.1rem; }
[data-site="vnstone"] h1 { font-size: var(--fs-h1); font-weight: 830; line-height: 0.94; letter-spacing: -0.045em; max-width: 10.5em; }
[data-site="vnstone"] .lede { font-size: var(--fs-lede); line-height: 1.45; color: var(--hero-ink); max-width: 34rem; margin-top: 1.4rem; }
[data-site="vnstone"] .hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.75rem; }
[data-site="vnstone"] .hero-foot { position: relative; z-index: 1; align-self: end; padding-block: 1.25rem 3.4rem; }
[data-site="vnstone"] .hero-foot { display: grid; gap: 1rem; }
[data-site="vnstone"] .proof {
  display: flex; flex-wrap: wrap; gap: 0.3rem 1.1rem; list-style: none; margin: 0; padding: 0;
  font-size: 0.8125rem; line-height: 1.35; color: rgb(237 234 228 / 0.92);
}
[data-site="vnstone"] .proof b { color: #fff; font-weight: 650; margin-right: 0.3em; }

/* The yard previewed in the hero's base band: the same six formats, the same rule — one scale. */
[data-site="vnstone"] .hero-yard { display: flex; align-items: flex-end; gap: 0.9rem; color: #fff; text-decoration: none; }
[data-site="vnstone"] .mini-floor {
  --mu: 0.28px;
  display: flex; align-items: flex-end; gap: 6px; padding: 0 2px; border-bottom: 1.5px solid rgb(237 234 228 / 0.85);
}
[data-site="vnstone"] .mini {
  flex: none; width: calc(var(--w) * var(--mu)); height: calc(var(--h) * var(--mu));
  background: var(--side) center / cover no-repeat; box-shadow: inset 0 0 0 1px rgb(255 255 255 / 0.22);
  transition: transform 0.3s var(--ease-out);
}
[data-site="vnstone"] .mini--granite { --w: 70; --h: 240; --side: #8a6556; background-image: url("./vn-tex-granite.webp"); }
[data-site="vnstone"] .mini--basalt { --w: 60; --h: 120; --side: #0b0c0d; background-image: url("./vn-tex-basalt.webp"); }
[data-site="vnstone"] .mini--marble { --w: 60; --h: 60; --side: #9da1a5; background-image: url("./vn-tex-marble.webp"); }
[data-site="vnstone"] .mini--lava { --w: 60; --h: 50; --side: #26272a; background-image: url("./vn-tex-lava.webp"); border-radius: 47% 53% 42% 58% / 55% 45% 55% 45%; }
[data-site="vnstone"] .mini--sandstone { --w: 15; --h: 45; --side: #66696c; background-image: url("./vn-tex-sandstone.webp"); }
[data-site="vnstone"] .mini--cobble { --w: 10; --h: 10; --side: #2c2e31; background-image: url("./vn-tex-cobble.webp"); }
[data-site="vnstone"] .hero-yard-label { font-size: 0.8125rem; font-weight: 640; text-decoration: underline; text-decoration-color: rgb(255 255 255 / 0.4); text-underline-offset: 0.25em; }
[data-site="vnstone"] .hero-yard:hover .mini { transform: translateY(-3px); }
[data-site="vnstone"] .hero-yard:hover .hero-yard-label { text-decoration-color: currentColor; }

/* ---------- 01 the yard: one true scale ---------- */
[data-site="vnstone"] .yard-body { display: grid; gap: 2.5rem; }
[data-site="vnstone"] .rack { container-type: inline-size; min-width: 0; }
[data-site="vnstone"] .rack-floor {
  --ruler: 2.25rem;
  --gap: clamp(0.35rem, 2.4cqi, 1.75rem);
  /* one shared px-per-cm unit: 290 cm of stone, thickness and gaps must fit the container */
  --u: clamp(0.6px, calc((100cqi - var(--ruler) - 5 * var(--gap)) / 300), 2.4px);
  position: relative; padding: 2.25rem 0 0 var(--ruler);
  border-bottom: 2px solid var(--text); margin-bottom: 2.25rem;
}
[data-site="vnstone"] .tiles {
  display: flex; align-items: flex-end; gap: var(--gap);
  min-height: calc(250 * var(--u)); list-style: none; margin: 0; padding: 0;
}
[data-site="vnstone"] .tile {
  --w: 60; --h: 60; --t: 2; --side: #3a3c40; --top: #55585c;
  position: relative; flex: none; width: calc(var(--w) * var(--u)); margin-right: calc(var(--t) * var(--u));
}
[data-site="vnstone"] .tile a { display: block; text-decoration: none; }
/* Each piece is a slab, not a bar: face + top + side, the depth equal to its real thickness at the same scale. */
[data-site="vnstone"] .tile-body { position: relative; display: block; height: calc(var(--h) * var(--u)); transition: transform 0.3s var(--ease-out); }
[data-site="vnstone"] .tile-face { position: absolute; inset: 0; overflow: hidden; background: var(--side); }
[data-site="vnstone"] .tile-face img { width: 100%; height: 100%; object-fit: cover; }
[data-site="vnstone"] .tile-body::before {
  content: ""; position: absolute; left: 0; bottom: 100%; width: 100%; height: calc(var(--t) * var(--u));
  background: var(--top); transform: skewX(-45deg); transform-origin: left bottom;
}
[data-site="vnstone"] .tile-body::after {
  content: ""; position: absolute; left: 100%; top: 0; width: calc(var(--t) * var(--u)); height: 100%;
  background: var(--side); transform: skewY(-45deg); transform-origin: left top;
}
[data-site="vnstone"] .tile::after {
  content: ""; position: absolute; left: -4%; right: calc(-1 * var(--t) * var(--u) - 4%); bottom: -5px; height: 10px;
  background: radial-gradient(closest-side, rgb(0 0 0 / 0.22), transparent); pointer-events: none;
}
[data-site="vnstone"] .tile-no {
  position: absolute; top: calc(100% + 0.65rem); left: 50%; transform: translateX(-50%);
  font-size: 0.75rem; font-weight: 650; letter-spacing: 0.04em; color: var(--muted); font-variant-numeric: tabular-nums;
}
[data-site="vnstone"] .tile--granite { --w: 70; --h: 240; --t: 2; --side: #8a6556; --top: #b58d7c; }
[data-site="vnstone"] .tile--basalt { --w: 60; --h: 120; --t: 3; --side: #0b0c0d; --top: #33363a; }
[data-site="vnstone"] .tile--marble { --w: 60; --h: 60; --t: 2; --side: #9da1a5; --top: #d3d5d7; }
[data-site="vnstone"] .tile--lava { --w: 60; --h: 50; --t: 5; --side: #26272a; }
[data-site="vnstone"] .tile--sandstone { --w: 15; --h: 45; --t: 2.5; --side: #66696c; --top: #8e9194; }
[data-site="vnstone"] .tile--cobble { --w: 10; --h: 10; --t: 8; --side: #2c2e31; --top: #4a4d51; }
/* Stepping stones are irregular: the only non-rectilinear shape on the page; its thickness is an offset echo. */
[data-site="vnstone"] .tile--lava .tile-face {
  border-radius: 47% 53% 42% 58% / 55% 45% 55% 45%; overflow: hidden;
  box-shadow: calc(var(--t) * var(--u)) calc(-1 * var(--t) * var(--u)) 0 var(--side);
}
[data-site="vnstone"] .tile--lava .tile-body::before,
[data-site="vnstone"] .tile--lava .tile-body::after { display: none; }
[data-site="vnstone"] .ruler {
  position: absolute; left: 0; bottom: 0; width: calc(var(--ruler) - 0.6rem); height: calc(250 * var(--u));
  border-right: 1px solid var(--text); color: var(--muted); font-size: 0.6875rem; line-height: 1;
  background:
    repeating-linear-gradient(to top, var(--text) 0 1px, transparent 1px calc(10 * var(--u))) right bottom / 5px 100% no-repeat,
    repeating-linear-gradient(to top, var(--text) 0 1.5px, transparent 1.5px calc(50 * var(--u))) right bottom / 11px 100% no-repeat;
}
[data-site="vnstone"] .ruler::before { content: "cm"; position: absolute; right: 14px; top: -1.35rem; }
[data-site="vnstone"] .ruler span { position: absolute; right: 14px; transform: translateY(50%); font-variant-numeric: tabular-nums; }
[data-site="vnstone"] .r50 { bottom: calc(50 * var(--u)); }
[data-site="vnstone"] .r100 { bottom: calc(100 * var(--u)); }
[data-site="vnstone"] .r150 { bottom: calc(150 * var(--u)); }
[data-site="vnstone"] .r200 { bottom: calc(200 * var(--u)); }
[data-site="vnstone"] .r250 { bottom: calc(250 * var(--u)); }

[data-site="vnstone"] .legend { display: grid; list-style: none; margin: 0; padding: 0; border-top: 1.5px solid var(--text); }
[data-site="vnstone"] .legend a {
  display: grid; grid-template-columns: 1.75rem 1fr; grid-template-areas: "no name" "no dim" "no tex";
  gap: 0.5rem 0.75rem; padding: 0.95rem 0.5rem 1rem 0; border-bottom: 1px solid var(--rule);
  text-decoration: none; transition: background-color 0.2s, box-shadow 0.2s;
}
[data-site="vnstone"] .legend a:hover { background: var(--surface); }
[data-site="vnstone"] .legend-no { grid-area: no; font-size: 0.75rem; font-weight: 650; color: var(--accent-ink); padding-top: 0.15rem; }
[data-site="vnstone"] .legend-name { grid-area: name; font-weight: 650; }
[data-site="vnstone"] .legend-name em { font-style: normal; font-weight: 400; color: var(--muted); margin-left: 0.3rem; }
[data-site="vnstone"] .legend-tex { grid-area: tex; font-size: 0.75rem; color: var(--muted); }
[data-site="vnstone"] .dim {
  grid-area: dim; font-size: clamp(1.625rem, 1.1rem + 1.3vw, 2.375rem); font-weight: 240;
  line-height: 1; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; white-space: nowrap;
  text-box: trim-both cap alphabetic;
}
[data-site="vnstone"] .dim i { font-style: normal; font-weight: 300; color: var(--accent); margin-inline: 0.06em; }
[data-site="vnstone"] .dim small { font-size: max(0.75rem, 0.4em); font-weight: 560; letter-spacing: 0.06em; margin-left: 0.4em; color: var(--muted); }
/* Tile ⇄ legend: hovering a stone or hovering/focusing its line lifts the stone and marks the line. */
[data-site="vnstone"] .tile a:hover .tile-body { transform: translateY(-0.5rem); }
[data-site="vnstone"] .yard:has(.legend--granite a:is(:hover, :focus-visible)) .tile--granite .tile-body,
[data-site="vnstone"] .yard:has(.legend--basalt a:is(:hover, :focus-visible)) .tile--basalt .tile-body,
[data-site="vnstone"] .yard:has(.legend--marble a:is(:hover, :focus-visible)) .tile--marble .tile-body,
[data-site="vnstone"] .yard:has(.legend--lava a:is(:hover, :focus-visible)) .tile--lava .tile-body,
[data-site="vnstone"] .yard:has(.legend--sandstone a:is(:hover, :focus-visible)) .tile--sandstone .tile-body,
[data-site="vnstone"] .yard:has(.legend--cobble a:is(:hover, :focus-visible)) .tile--cobble .tile-body { transform: translateY(-0.5rem); }
[data-site="vnstone"] .yard:has(.tile--granite a:hover) .legend--granite a,
[data-site="vnstone"] .yard:has(.tile--basalt a:hover) .legend--basalt a,
[data-site="vnstone"] .yard:has(.tile--marble a:hover) .legend--marble a,
[data-site="vnstone"] .yard:has(.tile--lava a:hover) .legend--lava a,
[data-site="vnstone"] .yard:has(.tile--sandstone a:hover) .legend--sandstone a,
[data-site="vnstone"] .yard:has(.tile--cobble a:hover) .legend--cobble a { background: var(--surface); box-shadow: inset 3px 0 0 var(--accent); }
[data-site="vnstone"] .scale-note { display: block; margin-top: 0.5rem; font-size: 0.875rem; }
[data-site="vnstone"] [data-scale-readout] { font-variant-numeric: tabular-nums; font-weight: 650; color: var(--text); }

/* ---------- 02 ledger ---------- */
[data-site="vnstone"] .ledger { background: var(--surface); border-block: 1px solid var(--rule); }
[data-site="vnstone"] .ledger-cols { display: none; }
[data-site="vnstone"] .ledger-grid { border-top: 1.5px solid var(--text); }
[data-site="vnstone"] .row { position: relative; display: grid; gap: 0.9rem; padding: 1.4rem 0; border-bottom: 1px solid var(--rule); }
[data-site="vnstone"] .row h3 { font-size: 1.5rem; font-weight: 740; letter-spacing: -0.02em; line-height: 1.1; }
[data-site="vnstone"] .row-no { display: block; margin-bottom: 0.35rem; font-size: 0.75rem; font-weight: 650; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent-ink); }
[data-site="vnstone"] .row-use { margin-top: 0.4rem; font-size: 0.8125rem; line-height: 1.4; color: var(--muted); }
[data-site="vnstone"] .row dl { display: grid; grid-template-columns: 1fr 1fr; gap: 0.9rem 1.25rem; }
[data-site="vnstone"] .row dl > div:nth-child(1) { order: 1; }
[data-site="vnstone"] .row dl > div:nth-child(4) { order: 2; }
[data-site="vnstone"] .row dl > div:nth-child(2) { order: 3; grid-column: 1 / -1; }
[data-site="vnstone"] .row dl > div:nth-child(3) { order: 4; grid-column: 1 / -1; }
[data-site="vnstone"] .row dt { font-size: 0.75rem; font-weight: 650; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); margin-bottom: 0.2rem; }
[data-site="vnstone"] .row dd { font-size: 0.9375rem; line-height: 1.5; }
[data-site="vnstone"] .c-count dd { color: var(--muted); font-size: 0.8125rem; }
[data-site="vnstone"] .c-count b {
  display: block; font-size: 2rem; font-weight: 260; line-height: 1; letter-spacing: -0.02em;
  color: var(--text); font-variant-numeric: tabular-nums; margin-bottom: 0.2rem;
}
[data-site="vnstone"] .row .na { color: var(--muted); }
[data-site="vnstone"] .row-note { font-size: 0.875rem; line-height: 1.45; color: var(--muted); max-width: 46rem; }
[data-site="vnstone"] .row-link { justify-self: start; font-size: 0.8125rem; font-weight: 600; color: var(--accent-ink); padding-block: 0.4rem; }
[data-site="vnstone"] .row:target::before { content: ""; position: absolute; left: calc(-1 * var(--gutter)); top: -1px; bottom: -1px; width: 4px; background: var(--accent); }
[data-site="vnstone"] .row:target h3 { color: var(--accent-ink); }

/* ---------- 03 source: raw → cut → container ---------- */
[data-site="vnstone"] .source { background: var(--basalt); color: var(--on-basalt); padding-block: clamp(4.5rem, 10vw, 9rem); }
[data-site="vnstone"] .source .section-intro { color: var(--on-basalt-muted); }
[data-site="vnstone"] .source .block-no { color: var(--accent-dark); }
[data-site="vnstone"] .source .block-no::after { color: var(--on-basalt-muted); }
[data-site="vnstone"] .route { display: grid; gap: 3.5rem; list-style: none; margin: 0; padding: 0; }
[data-site="vnstone"] .stop { display: grid; gap: 1.5rem; align-content: start; }
[data-site="vnstone"] .frame-img { position: relative; display: block; }
[data-site="vnstone"] .frame img { width: 100%; }
[data-site="vnstone"] .frame figcaption { margin-top: 0.85rem; font-size: 0.75rem; line-height: 1.45; color: var(--on-basalt-muted); }
/* raw: a split-block outline with a few large facets */
[data-site="vnstone"] .frame--raw .frame-img { aspect-ratio: 1200 / 988; }
[data-site="vnstone"] .frame--raw img {
  height: 100%; object-fit: cover;
  clip-path: polygon(0 7%, 16% 0, 44% 4%, 69% 0, 100% 6%, 96% 37%, 100% 66%, 97% 100%, 63% 95%, 35% 100%, 3% 96%, 0 69%, 4% 38%);
}
/* cut: a crisp rectangle crossed by the kerf and its red marker line */
[data-site="vnstone"] .frame--cut .frame-img { aspect-ratio: 1000 / 926; }
[data-site="vnstone"] .frame--cut img { height: 100%; object-fit: cover; }
[data-site="vnstone"] .frame--cut .frame-img::after {
  content: ""; position: absolute; top: -0.9rem; bottom: -0.9rem; left: 34%; width: 6px;
  background: linear-gradient(90deg, var(--basalt) 0 3px, var(--accent-dark) 3px 6px);
}
/* shipped: the exact side ratio of a 20-ft container */
[data-site="vnstone"] .frame--container .frame-img { aspect-ratio: 6.058 / 2.591; }
[data-site="vnstone"] .frame--container img { height: 100%; object-fit: cover; }
[data-site="vnstone"] .frame-spec {
  position: absolute; left: 0; top: 0; padding: 0.35rem 0.6rem; background: var(--basalt);
  font-size: 0.75rem; font-weight: 650; letter-spacing: 0.1em; text-transform: uppercase; color: var(--on-basalt);
}
[data-site="vnstone"] .stop-no { font-size: var(--fs-label); font-weight: 650; text-transform: uppercase; letter-spacing: 0.12em; color: var(--on-basalt-muted); }
[data-site="vnstone"] .stop-no span { color: var(--accent-dark); margin-right: 0.5rem; font-variant-numeric: tabular-nums; }
[data-site="vnstone"] .stop-copy h3 { font-size: clamp(1.625rem, 1.2rem + 1.5vw, 2.25rem); font-weight: 760; line-height: 1.04; letter-spacing: -0.03em; margin: 0.55rem 0 0.9rem; }
[data-site="vnstone"] .markets span { white-space: nowrap; }
[data-site="vnstone"] .stop-copy p:not(.stop-no) { max-width: 36rem; font-size: 0.9375rem; }
[data-site="vnstone"] .stop-meta { margin-top: 1rem; padding-top: 0.9rem; border-top: 1px solid rgb(237 234 228 / 0.18); color: var(--on-basalt-muted); }

/* ---------- 04 core sample: tones darken with age ---------- */
[data-site="vnstone"] .core-grid { display: grid; }
[data-site="vnstone"] .strata { --yr: 3.75rem; list-style: none; margin: 0; padding: 0; border-top: 2px solid var(--text); }
[data-site="vnstone"] .layer {
  --years: 1; --tone: #ebe6dd; --ink: var(--text);
  display: grid; grid-template-columns: 4.75rem 1fr; gap: 0.25rem 1.25rem; align-content: start;
  min-height: calc(var(--years) * var(--yr)); padding: 0.95rem 1rem;
  color: var(--ink);
  background: repeating-linear-gradient(180deg, rgb(0 0 0 / 0.035) 0 1px, transparent 1px 9px), var(--tone);
  border-bottom: 1px solid rgb(0 0 0 / 0.1);
}
[data-site="vnstone"] .y2 { --years: 2; }
[data-site="vnstone"] .y5 { --years: 5; }
[data-site="vnstone"] .l-2019 { --tone: #ded5c5; }
[data-site="vnstone"] .l-2018 { --tone: #d1c4ab; }
[data-site="vnstone"] .l-2017 { --tone: #c2b498; }
[data-site="vnstone"] .l-2015 { --tone: #aca493; }
[data-site="vnstone"] .l-2014 { --tone: #939a9c; }
[data-site="vnstone"] .l-2012 { --tone: #5c5650; --ink: var(--on-basalt); }
[data-site="vnstone"] .l-2011 { --tone: #3a3c40; --ink: var(--on-basalt); }
[data-site="vnstone"] .l-2010 { --tone: #232427; --ink: var(--on-basalt); }
[data-site="vnstone"] .layer-year {
  font-size: clamp(1.75rem, 1.3rem + 1.5vw, 2.75rem); font-weight: 220; line-height: 1;
  letter-spacing: -0.03em; font-variant-numeric: tabular-nums; text-box: trim-both cap alphabetic; padding-top: 0.2rem;
}
[data-site="vnstone"] .layer h3 { font-size: 1.125rem; font-weight: 700; letter-spacing: -0.01em; line-height: 1.25; }
[data-site="vnstone"] .layer p { font-size: 0.9375rem; line-height: 1.45; }
[data-site="vnstone"] .layer-span { grid-column: 2; font-size: 0.75rem; font-weight: 650; letter-spacing: 0.08em; text-transform: uppercase; font-variant-numeric: tabular-nums; }

/* ---------- 05 quote: the chalk mark ---------- */
[data-site="vnstone"] .quote { border-top: 1px solid var(--rule); }
[data-site="vnstone"] .quote-grid { display: grid; gap: 2rem; }
[data-site="vnstone"] .quote-head { margin-bottom: 0.5rem; }
[data-site="vnstone"] .composer { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; align-content: start; }
[data-site="vnstone"] .composer-off { max-width: 32rem; padding-left: 1rem; border-left: 3px solid var(--accent); color: var(--muted); }
[data-site="vnstone"] .field { display: grid; gap: 0.45rem; align-content: start; min-width: 0; }
[data-site="vnstone"] .field--wide { grid-column: 1 / -1; }
[data-site="vnstone"] .field label { font-size: var(--fs-label); font-weight: 650; text-transform: uppercase; letter-spacing: 0.1em; }
[data-site="vnstone"] .hint { text-transform: none; letter-spacing: 0; font-weight: 400; color: var(--muted); margin-left: 0.35rem; }
[data-site="vnstone"] .composer :is(select, input, button) { font: inherit; color: var(--text); }
[data-site="vnstone"] .composer :is(select, input) {
  width: 100%; min-height: 3rem; padding: 0.6rem 0.8rem; font-size: 1.0625rem;
  background-color: var(--surface); border: 1.5px solid var(--field); border-radius: 0.125rem;
}
[data-site="vnstone"] .composer select {
  appearance: none; padding-right: 2.5rem;
  background-image: linear-gradient(45deg, transparent 50%, var(--text) 50%), linear-gradient(135deg, var(--text) 50%, transparent 50%);
  background-position: right 1.15rem center, right 0.8rem center; background-size: 6px 6px; background-repeat: no-repeat;
}
[data-site="vnstone"] .composer :is(select, input):hover { border-color: var(--text); }
[data-site="vnstone"] .stepper { display: grid; grid-template-columns: 3rem minmax(0, 1fr) 3rem; }
[data-site="vnstone"] .stepper input { text-align: center; border-inline: 0; font-variant-numeric: tabular-nums; appearance: textfield; }
[data-site="vnstone"] .stepper input::-webkit-inner-spin-button,
[data-site="vnstone"] .stepper input::-webkit-outer-spin-button { appearance: none; margin: 0; }
[data-site="vnstone"] .stepper button { min-height: 3rem; font-size: 1.25rem; background: var(--surface); border: 1.5px solid var(--field); cursor: pointer; }
[data-site="vnstone"] .stepper button:hover { background: var(--text); color: var(--surface); border-color: var(--text); }
[data-site="vnstone"] .slip {
  display: grid; gap: 1.5rem; align-content: start; padding: clamp(1.5rem, 3.5vw, 2.75rem); color: var(--on-basalt);
  background: linear-gradient(rgb(20 21 22 / 0.86), rgb(20 21 22 / 0.86)), url("./vn-tex-basalt.webp") center / cover, var(--basalt);
}
[data-site="vnstone"] .slip-title { font-size: var(--fs-label); font-weight: 650; text-transform: uppercase; letter-spacing: 0.12em; color: var(--on-basalt-muted); font-variation-settings: "SHRP" 60; }
/* The chalk mark: Geologica's real slant axis, a marker hand on a basalt face. */
[data-site="vnstone"] .chalk {
  display: grid; gap: 0.3rem; min-height: 3lh;
  font-size: clamp(1.5rem, 1.05rem + 1.7vw, 2.5rem); font-weight: 460; font-style: oblique 10deg;
  line-height: 1.15; letter-spacing: -0.005em; color: #f6f3ec;
}
[data-site="vnstone"] .chalk-line { display: block; overflow-wrap: anywhere; text-wrap: balance; }
[data-site="vnstone"] .chalk-stone { text-decoration: underline 3px var(--accent-dark); text-underline-offset: 0.2em; }
[data-site="vnstone"] .chalk-format { color: var(--accent-dark); font-variant-numeric: tabular-nums; }
[data-site="vnstone"] .tiers-title { font-size: 0.875rem; font-weight: 620; }
[data-site="vnstone"] .tiers ol { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.5rem; list-style: none; margin: 0.75rem 0; padding: 0; }
[data-site="vnstone"] .tiers li {
  display: grid; gap: 0.3rem; padding: 0.75rem; font-size: 0.75rem; line-height: 1.3; color: var(--on-basalt-muted);
  border: 1px solid rgb(237 234 228 / 0.25); transition: border-color 0.2s, background-color 0.2s, color 0.2s;
}
[data-site="vnstone"] .tiers li b { font-size: 1.5rem; font-weight: 300; line-height: 1; color: var(--on-basalt); }
[data-site="vnstone"] .tiers li.is-active { border-color: var(--accent-dark); background: rgb(255 122 87 / 0.1); color: var(--on-basalt); }
[data-site="vnstone"] .tiers li.is-active b { color: var(--accent-dark); }
[data-site="vnstone"] .slip .fine { color: var(--on-basalt-muted); font-size: 0.75rem; }
[data-site="vnstone"] .slip-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }
[data-site="vnstone"] .slip-link { align-self: center; font-size: 0.875rem; font-weight: 600; padding-block: 0.5rem; }
[data-site="vnstone"] .copy-status { min-height: 1.3em; font-size: 0.8125rem; color: var(--on-basalt-muted); }
[data-site="vnstone"] .contacts { display: flex; flex-wrap: wrap; gap: 0.75rem 2rem; padding-top: 1rem; border-top: 1px solid rgb(237 234 228 / 0.18); font-size: 0.9375rem; }
[data-site="vnstone"] .contacts dt { font-size: 0.75rem; font-weight: 650; text-transform: uppercase; letter-spacing: 0.1em; color: var(--on-basalt-muted); }
[data-site="vnstone"] .contacts dd { font-variant-numeric: tabular-nums; }
[data-site="vnstone"] .contacts a { display: inline-block; padding-block: 0.35rem; }

/* ---------- footer ---------- */
[data-site="vnstone"] .foot { background: var(--basalt); color: var(--on-basalt-muted); font-size: 0.875rem; padding-block: clamp(3.5rem, 7vw, 6rem) 2rem; border-top: 3px solid var(--accent); }
[data-site="vnstone"] .foot-grid { display: grid; gap: 2.5rem; }
[data-site="vnstone"] .wm--foot { font-size: clamp(2.75rem, 1.5rem + 5vw, 5rem); line-height: 0.9; letter-spacing: -0.03em; color: var(--on-basalt); margin-bottom: 1rem; }
[data-site="vnstone"] .foot-brand p + p { margin-top: 0.6rem; }
[data-site="vnstone"] .foot a { color: var(--on-basalt); }
[data-site="vnstone"] .foot-title { font-size: var(--fs-label); font-weight: 650; text-transform: uppercase; letter-spacing: 0.12em; color: var(--on-basalt); margin-bottom: 1rem; }
[data-site="vnstone"] .foot-list > div { display: grid; grid-template-columns: 7.5rem 1fr; gap: 0.75rem; padding: 0.55rem 0; border-bottom: 1px solid rgb(237 234 228 / 0.12); }
[data-site="vnstone"] .foot-list dt { color: var(--on-basalt); }
[data-site="vnstone"] .foot-note { margin-top: 0.75rem; }
[data-site="vnstone"] .foot-credits ul { display: grid; gap: 0.35rem; list-style: none; margin: 0 0 1rem; padding: 0; font-size: 0.8125rem; }
[data-site="vnstone"] .foot .fine { color: var(--on-basalt-muted); }
[data-site="vnstone"] .foot-base {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem 2rem; align-items: baseline;
  margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid rgb(237 234 228 / 0.14); font-size: 0.8125rem;
}
[data-site="vnstone"] .foot-base p { max-width: 60rem; }
[data-site="vnstone"] .to-top { white-space: nowrap; padding-block: 0.5rem; }

/* ---------- motion (only when the visitor allows it) ---------- */
@media (prefers-reduced-motion: no-preference) {
  [data-site="vnstone"] .hero-kerf { animation: vn-saw 1.6s cubic-bezier(0.55, 0.05, 0.3, 1) 0.4s both; }
}
@keyframes vn-saw {
  0% { transform: translateX(-101%); opacity: 1; }
  84% { opacity: 1; }
  100% { transform: translateX(0); opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
  [data-site="vnstone"] *,
  [data-site="vnstone"] *::before,
  [data-site="vnstone"] *::after { animation: none !important; transition-duration: 0.01ms !important; transition-delay: 0s !important; }
}

/* ---------- phones: stone first — an unveiled basalt band carrying the scale preview, then the copy, then the facts ---------- */
@media (max-width: 47.99rem) {
  [data-site="vnstone"] .concept { font-size: 0.75rem; }
  [data-site="vnstone"] .hero { grid-template-rows: auto auto auto; min-height: 0; background: #f2f5f8; }
  [data-site="vnstone"] .hero::before,
  [data-site="vnstone"] .hero::after { display: none; }
  [data-site="vnstone"] .hero-photo { position: relative; inset: auto; grid-row: 1; grid-column: 1; min-height: 16rem; }
  [data-site="vnstone"] .hero-photo::after {
    content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
    background: linear-gradient(0deg, rgb(12 13 14 / 0.9) 0%, rgb(12 13 14 / 0.6) 30%, rgb(12 13 14 / 0) 56%);
  }
  [data-site="vnstone"] .hero-photo img { object-position: 55% 62%; }
  [data-site="vnstone"] .hero-photo figcaption { bottom: 0.55rem; font-size: 0.75rem; line-height: 1.3; }
  [data-site="vnstone"] .hero-foot { display: contents; }
  [data-site="vnstone"] .hero-yard { grid-row: 1; grid-column: 1; align-self: end; justify-self: start; position: relative; z-index: 1; margin: 0 var(--gutter) 2.4rem; }
  [data-site="vnstone"] .hero-copy { grid-row: 2; grid-column: 1; padding-block: 1.5rem 1.5rem; }
  [data-site="vnstone"] .proof {
    grid-row: 3; grid-column: 1; padding: 1rem var(--gutter) 1.5rem; border-top: 1px solid var(--rule);
    color: var(--hero-ink);
  }
  [data-site="vnstone"] .proof b { color: var(--text); }
  [data-site="vnstone"] .strata { --yr: 5.5rem; }
  [data-site="vnstone"] .layer { padding: 0.8rem 1rem; }
  [data-site="vnstone"] .layer p { font-size: 0.875rem; line-height: 1.35; }
  [data-site="vnstone"] .layer-span { display: none; }
}

/* ---------- ≥ 30rem ---------- */
@media (min-width: 30rem) {
  [data-site="vnstone"] .legend { grid-template-columns: 1fr 1fr; column-gap: 1.5rem; }
  [data-site="vnstone"] .wm-sub-long { display: inline; }
}

/* ---------- ≥ 48rem: tablet ---------- */
@media (min-width: 48rem) {
  [data-site="vnstone"] { --header-h: 4.25rem; }
  [data-site="vnstone"] .wordmark .wm { font-size: 1.5rem; }
  [data-site="vnstone"] .keep { white-space: nowrap; }
  [data-site="vnstone"] .hero-photo img { object-position: 50% 74%; }
  /* wider screens: a veil on the copy side and across the top; the stone stays clear on the right */
  [data-site="vnstone"] .hero::before {
    background:
      linear-gradient(90deg, rgb(246 248 250 / 0.9) 0%, rgb(246 248 250 / 0.78) 38%, rgb(246 248 250 / 0) 62%),
      linear-gradient(180deg, rgb(246 248 250 / 0.86) 0%, rgb(246 248 250 / 0.55) 32%, rgb(246 248 250 / 0) 52%);
    mask-image: linear-gradient(180deg, #000 0 66%, transparent 86%);
  }
  [data-site="vnstone"] .hero::after { background: linear-gradient(0deg, rgb(12 13 14 / 0.93) 0%, rgb(12 13 14 / 0.72) 15%, rgb(12 13 14 / 0) 31%); }
  [data-site="vnstone"] .hero-foot { grid-template-columns: minmax(0, 1fr) auto; align-items: end; column-gap: 2rem; padding-block: 1.5rem 2.75rem; }
  [data-site="vnstone"] .proof { grid-column: 1; grid-row: 1; gap: 0.5rem 2.25rem; }
  [data-site="vnstone"] .hero-yard { display: grid; grid-column: 2; grid-row: 1; justify-items: end; gap: 0.55rem; }
  [data-site="vnstone"] .mini-floor { --mu: 0.45px; }
  /* the photo credit sits under the facts line, aligned to the content column */
  [data-site="vnstone"] .hero-photo figcaption { left: max(var(--gutter), (100% - var(--container)) / 2); right: auto; bottom: 0.7rem; color: rgb(237 234 228 / 0.78); }
  [data-site="vnstone"] .rack-floor { --ruler: 2.75rem; }
  [data-site="vnstone"] .section-head--split { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); align-items: end; column-gap: var(--gutter); max-width: none; }
  [data-site="vnstone"] .stop { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); column-gap: var(--gutter); align-items: start; }
  [data-site="vnstone"] .strata { --yr: 3.5rem; }
  [data-site="vnstone"] .layer { grid-template-columns: 6.5rem 1fr auto; padding: 0.7rem 1.25rem; }
  [data-site="vnstone"] .layer > div { display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 0.75rem; }
  [data-site="vnstone"] .layer { align-content: start; }
  [data-site="vnstone"] .layer-span { grid-column: 3; grid-row: 1; padding-top: 0.35rem; }
  [data-site="vnstone"] .foot-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  [data-site="vnstone"] .foot-credits { grid-column: 1 / -1; }
  [data-site="vnstone"] .foot-credits ul { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 2rem; }
}

/* ---------- 64–80rem: the strata column is narrow, so the duration tag yields to single-line layers ---------- */
@media (min-width: 64rem) and (max-width: 79.99rem) {
  [data-site="vnstone"] .layer-span { display: none; }
}

/* ---------- short, wide screens (e.g. 1280×720, 1366×768) ---------- */
@media (min-width: 48rem) and (max-height: 50rem) {
  [data-site="vnstone"] .hero-copy { padding-block: 1.6rem 1rem; }
  [data-site="vnstone"] .hero .eyebrow { margin-bottom: 0.75rem; }
  [data-site="vnstone"] .lede { margin-top: 0.9rem; }
  [data-site="vnstone"] .hero-actions { margin-top: 1.1rem; }
  [data-site="vnstone"] .hero-foot { padding-block: 0.75rem 2.4rem; }
  [data-site="vnstone"] .mini-floor { --mu: 0.3px; }
}

/* ---------- ≥ 60rem: the section list fits beside the wordmark and the quote action ---------- */
@media (min-width: 60rem) {
  [data-site="vnstone"] .masthead-row { gap: 2rem; }
  [data-site="vnstone"] .wordmark { margin-right: 0; }
  [data-site="vnstone"] .menu-btn { display: none; }
  [data-site="vnstone"] .nav[popover] {
    display: block; position: static; inset: auto; width: auto; margin: 0 auto; padding: 0;
    overflow: visible; background: none; border: 0; box-shadow: none;
  }
  [data-site="vnstone"] .nav ul { flex-direction: row; gap: clamp(1.25rem, 2.5vw, 2.25rem); }
  [data-site="vnstone"] .nav a { padding: 0.75rem 0; font-size: 0.9375rem; }
  [data-site="vnstone"] .nav a:hover { background: none; }
  [data-site="vnstone"] .nav a::after {
    content: ""; position: absolute; left: 0; right: 0; bottom: 0.45rem; height: 2px;
    background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform 0.25s var(--ease-out);
  }
  [data-site="vnstone"] .nav a:is(:hover, :focus-visible)::after { transform: scaleX(1); }
  [data-site="vnstone"] .btn-quote { min-height: 2.875rem; padding-inline: 1.25rem; font-size: 0.9375rem; }
}

/* ---------- ≥ 64rem: desktop ---------- */
@media (min-width: 64rem) {
  [data-site="vnstone"] .yard-body { grid-template-columns: minmax(0, 8fr) minmax(0, 4fr); column-gap: clamp(2rem, 4vw, 4rem); align-items: end; }
  [data-site="vnstone"] .legend { grid-template-columns: 1fr; margin-bottom: 2.25rem; }
  [data-site="vnstone"] .ledger-grid {
    display: grid; border-top: 0;
    grid-template-columns: minmax(12rem, 1.15fr) 5.5rem minmax(0, 2.2fr) minmax(0, 2fr) minmax(0, 1.4fr);
    column-gap: clamp(1.25rem, 2.6vw, 2.75rem);
  }
  [data-site="vnstone"] .ledger-cols {
    display: grid; grid-column: 1 / -1; grid-template-columns: subgrid; padding-bottom: 0.75rem;
    border-bottom: 1.5px solid var(--text); font-size: 0.75rem; font-weight: 650; text-transform: uppercase;
    letter-spacing: 0.1em; color: var(--muted);
  }
  /* subgrid rows inherit the parent's column gutters (column-gap: normal), so text never runs into the next column */
  [data-site="vnstone"] .row { grid-column: 1 / -1; grid-template-columns: subgrid; align-items: start; column-gap: normal; row-gap: 0.6rem; }
  [data-site="vnstone"] .row-head { grid-column: 1; grid-row: 1 / span 2; }
  [data-site="vnstone"] .row dl { grid-column: 2 / -1; grid-row: 1; grid-template-columns: subgrid; column-gap: normal; row-gap: 0; }
  [data-site="vnstone"] .row dl > div { order: 0 !important; grid-column: auto !important; }
  [data-site="vnstone"] .row dt { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
  [data-site="vnstone"] .row-link { grid-column: 3 / -1; grid-row: 2; }
  [data-site="vnstone"] .row-note { grid-column: 3 / -1; grid-row: 2; }
  [data-site="vnstone"] .row-note + .row-link { grid-row: 3; }
  [data-site="vnstone"] .row:hover { background: linear-gradient(90deg, rgb(194 58 27 / 0.05), transparent 70%); }
  /* Source as one strip: column widths follow each frame's ratio, so all three frames share one height. */
  [data-site="vnstone"] .route { grid-template-columns: 1.2146fr 1.0799fr 2.338fr; column-gap: clamp(1rem, 2vw, 1.75rem); }
  [data-site="vnstone"] .stop { grid-template-columns: 1fr; }
  [data-site="vnstone"] .stop-copy h3 { font-size: clamp(1.5rem, 1rem + 1vw, 2rem); }
  [data-site="vnstone"] .core-grid { grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); column-gap: var(--gutter); align-items: start; }
  [data-site="vnstone"] .core-head { position: sticky; top: calc(var(--header-h) + 2.5rem); padding-right: 1rem; }
  [data-site="vnstone"] .quote-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr); grid-template-rows: auto 1fr;
    grid-template-areas: "head slip" "form slip"; column-gap: clamp(2rem, 5vw, 5rem); align-items: start;
  }
  [data-site="vnstone"] .quote-head { grid-area: head; margin-bottom: 2.5rem; }
  [data-site="vnstone"] .composer,
  [data-site="vnstone"] .quote-grid > noscript { grid-area: form; }
  [data-site="vnstone"] .slip { grid-area: slip; }
  [data-site="vnstone"] .foot-grid { grid-template-columns: minmax(0, 4fr) minmax(0, 4fr) minmax(0, 5fr); }
  [data-site="vnstone"] .foot-credits { grid-column: auto; }
  [data-site="vnstone"] .foot-credits ul { grid-template-columns: 1fr; }
}

/* ---------- < 24rem: the smallest phones keep one-year layers to one unit ---------- */
@media (max-width: 23.99rem) {
  [data-site="vnstone"] .layer { grid-template-columns: 3.6rem 1fr; column-gap: 0.8rem; padding-inline: 0.85rem; }
  [data-site="vnstone"] .layer-year { font-size: 1.5rem; }
}