/* ============================================================
   SECTIONS LAB · pages/refs.css — References & Case, new (2026-09-13)
   Tokens only; each section sets its own padding. Loads on every
   page view, so every class is namespaced: .ref-* and .case2-*
   ============================================================ */

.ref-vh, .case2-vh { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; }
:is(.ref-hero, .ref-feature, .ref-index, .ref-quote, .case2-hero, .case2-change, .case2-st, .case2-flow, .case2-ch, .case2-quote, .case2-fit, .case2-next) :is(h1, h2, h3) { text-wrap: balance; }
/* client logos: at most 64 × 240 (56 × 180 on phones); the two coloured marks go grey */
:is(.ref-hero__logo, .ref-feature__logo, .ref-plate__logo, .ref-quote__logo, .case2-quote__logo, .case2-glance__logo, .case2-next__logo, .ref-card__logo, .ref-tile__logo) { display: block; width: auto; height: auto; max-width: min(240px, 100%); max-height: 64px; }
@media (max-width: 767px) { :is(.ref-card__logo, .ref-tile__logo) { max-width: min(180px, 100%); max-height: 56px; } }
img.is-solid[data-logo="client"] { filter: grayscale(1) brightness(1.05); opacity: .8; }
.ref-case { display: inline-flex; align-items: center; gap: var(--sp-1); font-size: var(--fs-small); font-weight: 600; color: var(--fg); }
.ref-case::before { content: ""; width: 7px; height: 7px; margin-right: 4px; border-radius: 50%; background: var(--brand); }

/* ================= References ================= */

/* ---------- hero: the page in words, six logos under a hairline ---------- */
.ref-hero { position: relative; padding-block: calc(var(--header-h, 80px) + var(--sp-8)) var(--sp-8); }
.ref-hero h1 { max-width: 15ch; margin-top: var(--sp-3); }
.ref-hero__foot { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: var(--sp-5) var(--sp-8); margin-top: var(--sp-6); }
.ref-hero .lead { max-width: 50ch; color: var(--fg-muted); }
.ref-hero__acts { display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-3) var(--sp-6); }
.ref-hero__logos { list-style: none; margin: var(--sp-8) 0 0; padding: var(--sp-6) 0 0; border-top: 1px solid var(--hairline); display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--sp-5) var(--sp-7); }
.ref-hero__logo { max-height: 34px; max-width: 160px; opacity: .7; }
.ref-hero__logo.is-square { max-height: 46px; }
@media (max-width: 900px) {
  .ref-hero__foot { grid-template-columns: minmax(0, 1fr); }
  .ref-hero__logos { justify-content: flex-start; gap: var(--sp-5) var(--sp-6); }
  .ref-hero__logo { max-height: 28px; max-width: 120px; }
  .ref-hero__logo.is-square { max-height: 38px; }
}

/* ---------- R1 feature band: the one story ---------- */
.ref-feature { padding-block: var(--sp-9); }
.ref-feature__grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: var(--sp-8); align-items: center; }
.ref-feature__media { position: relative; margin: 0; aspect-ratio: 16 / 11; border-radius: var(--img-radius); overflow: hidden; background: var(--bg-2); }
.ref-feature__img { width: 100%; height: 100%; object-fit: cover; object-position: 74% 50%; filter: brightness(1.3); }
.ref-feature__logo { position: absolute; left: var(--sp-5); bottom: var(--sp-5); max-height: 40px; max-width: 200px; }
.ref-feature h2 { margin-top: var(--sp-3); max-width: 20ch; font-size: clamp(1.75rem, 2.6vw, 2.5rem); line-height: 1.14; }
.ref-states { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-2); margin: var(--sp-6) 0 0; }
.ref-states > div { padding: var(--sp-4) var(--sp-4) var(--sp-5); border-radius: var(--radius-card); background: color-mix(in srgb, var(--fg) 5%, transparent); }
.ref-states dt { display: flex; align-items: center; gap: 8px; font-size: var(--fs-small); color: var(--fg-muted); }
.ref-states dd { margin: var(--sp-2) 0 0; font-weight: 600; line-height: 1.3; }
.ref-states .is-before dd { color: var(--fg-muted); font-weight: 500; }
.ref-states .is-now dt::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--brand); }
.ref-feature__sys { margin-top: var(--sp-5); font-size: var(--fs-small); color: var(--fg-muted); }
.ref-feature__sys b { color: var(--fg); font-weight: 600; }
.ref-feature .link { margin-top: var(--sp-5); }
@media (max-width: 900px) {
  .ref-feature__grid { grid-template-columns: minmax(0, 1fr); gap: var(--sp-6); }
  .ref-feature__logo { max-height: 32px; max-width: 160px; left: var(--sp-4); bottom: var(--sp-4); }
}

/* ---------- the index: head, chips, status ---------- */
.ref-index { padding-block: var(--sp-9); }
.ref-index__head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: var(--sp-4) var(--sp-8); }
.ref-index__head h2 { margin-top: var(--sp-3); }
.ref-index__note { max-width: 44ch; color: var(--fg-muted); }
.ref-bar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--sp-3) var(--sp-5); margin-top: var(--sp-7); padding-bottom: var(--sp-5); }
.ref-chips { display: flex; flex-wrap: wrap; gap: var(--sp-2); }
.ref-chip {
  appearance: none; display: inline-flex; align-items: center; gap: .5em; min-height: 44px; padding: 0 var(--sp-4);
  border: 1px solid color-mix(in srgb, var(--fg) 24%, transparent); border-radius: 999px; background: transparent;
  color: var(--fg-muted); font: inherit; font-size: var(--fs-small); font-weight: 600; cursor: pointer;
  transition: background-color .25s, color .25s, border-color .25s;
}
.ref-chip__n { font-weight: 500; font-variant-numeric: tabular-nums; opacity: .75; }
.ref-chip[aria-pressed="true"] { background: var(--fg); border-color: var(--fg); color: var(--bg); cursor: default; }
.ref-chip:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }
@media (hover: hover) { .ref-chip:not([aria-pressed="true"]):hover { border-color: color-mix(in srgb, var(--fg) 55%, transparent); color: var(--fg); } }
.ref-status { font-size: var(--fs-small); color: var(--fg-muted); font-variant-numeric: tabular-nums; }
.ref-empty { padding-block: var(--sp-6); color: var(--fg-muted); }
.ref-list { list-style: none; margin: 0; padding: 0; transition: opacity .2s; }
.ref-list.is-switching { opacity: 0; }

/* ---------- R1 ledger: one column, attributes always in the same place ---------- */
.ref-index--ledger { --ref-cols: 2.25rem minmax(0, 1fr) minmax(0, 1.55fr) minmax(0, .95fr); }
.ref-ledger__cols { display: grid; grid-template-columns: var(--ref-cols); gap: var(--sp-5); padding-block: var(--sp-3); border-block: 1px solid color-mix(in srgb, var(--fg) 22%, transparent); font-size: var(--fs-small); color: var(--fg-muted); }
.ref-ledger__cols span:last-child { text-align: right; }
.ref-row { display: grid; grid-template-columns: var(--ref-cols); gap: var(--sp-5); align-items: baseline; padding-block: var(--sp-4); border-bottom: 1px solid color-mix(in srgb, var(--fg) 14%, transparent); color: inherit; text-decoration: none; }
.ref-row__letter { font-family: var(--font-head); font-weight: 600; font-size: var(--fs-small); color: var(--fg-dim); }
.ref-item:not([data-first]) .ref-row__letter { visibility: hidden; }
.ref-row__who { display: flex; flex-direction: column; align-items: flex-start; gap: var(--sp-1); }
.ref-row__name { font-family: var(--font-head); font-weight: 600; font-size: clamp(1.0625rem, 1.3vw, 1.25rem); line-height: 1.3; }
.ref-row__line { max-width: 62ch; color: var(--fg-muted); }
.ref-row__tags { font-size: var(--fs-small); color: var(--fg-muted); text-align: right; }
/* the one row that leads somewhere: the only one that looks like a link */
.ref-row--story { position: relative; isolation: isolate; }
.ref-row--story::before { content: ""; position: absolute; z-index: -1; inset: -1px calc(var(--sp-3) * -1); border-radius: var(--radius-card); background: color-mix(in srgb, var(--fg) 4.5%, transparent); transition: background-color .3s; }
.ref-row--story:focus-visible { outline: 2px solid var(--brand); outline-offset: 4px; border-radius: 4px; }
@media (hover: hover) { .ref-row--story:hover::before { background: color-mix(in srgb, var(--fg) 8%, transparent); } }
@media (max-width: 1100px) {
  .ref-index--ledger { --ref-cols: 2rem minmax(0, 1fr) minmax(0, 1.4fr); }
  .ref-ledger__cols span:last-child { display: none; }
  .ref-row__tags { grid-column: 3; text-align: left; margin-top: calc(var(--sp-4) * -1 + 4px); }
}
@media (max-width: 760px) {
  .ref-ledger__cols { display: none; }
  .ref-row { grid-template-columns: 1.5rem minmax(0, 1fr); gap: var(--sp-1) var(--sp-3); }
  .ref-row__letter { grid-row: span 3; }
  .ref-row__tags { grid-column: 2; margin-top: 2px; }
  .ref-ledger { border-top: 1px solid color-mix(in srgb, var(--fg) 22%, transparent); }
}

/* ---------- R5 index with image preview ---------- */
.ref-pv { display: grid; grid-template-columns: minmax(0, 1fr); border-top: 1px solid color-mix(in srgb, var(--fg) 22%, transparent); }
.ref-pv__row {
  position: relative; display: grid; grid-template-columns: minmax(0, 1fr) auto; grid-template-areas: "name thumb" "line thumb" "tags thumb";
  column-gap: var(--sp-4); padding-block: var(--sp-4); border-bottom: 1px solid color-mix(in srgb, var(--fg) 14%, transparent); color: inherit; text-decoration: none;
}
.ref-pv__name { grid-area: name; font-family: var(--font-head); font-weight: 600; font-size: clamp(1.125rem, 1.6vw, 1.5rem); line-height: 1.25; transition: color .3s; }
.ref-pv__line { grid-area: line; margin-top: 2px; color: var(--fg-muted); }
.ref-pv__tags { grid-area: tags; display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-1) var(--sp-4); margin-top: var(--sp-2); font-size: var(--fs-small); color: var(--fg-muted); }
.ref-pv__thumb { grid-area: thumb; align-self: center; display: grid; place-items: center; width: 64px; height: 64px; border-radius: var(--img-radius-sm, 6px); overflow: hidden; background: color-mix(in srgb, var(--fg) 6%, transparent); font-family: var(--font-head); font-weight: 700; color: var(--fg-muted); }
.ref-pv__thumb img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.7) brightness(.85); }
.ref-pv__row--story:focus-visible, .ref-pv__row:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; border-radius: 4px; }
.ref-pv__frame { display: none; }
@media (hover: hover) and (pointer: fine) and (min-width: 1024px) {
  .ref-pv { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: var(--sp-8); align-items: start; border-top: 0; }
  .ref-pv__list { border-top: 1px solid color-mix(in srgb, var(--fg) 22%, transparent); }
  .ref-pv__row { grid-template-columns: minmax(0, 1fr) auto; grid-template-areas: "name tags" "line tags"; padding-inline: 0; transition: padding .45s var(--ease-out); }
  .ref-pv__tags { align-self: start; justify-content: flex-end; flex-direction: column; align-items: flex-end; margin-top: 6px; text-align: right; }
  .ref-pv__thumb { display: none; }
  .ref-pv__row::before { content: ""; position: absolute; left: 0; top: var(--sp-4); bottom: var(--sp-4); width: 2px; background: var(--brand); transform: scaleY(0); transition: transform .4s var(--ease-out); }
  .ref-pv__row.is-on { padding-left: var(--sp-5); }
  .ref-pv__row.is-on::before { transform: none; }
  .ref-pv__list:hover .ref-pv__row:not(.is-on) .ref-pv__name { color: var(--fg-muted); }
  .ref-pv__row--story { cursor: pointer; }
  .ref-pv__frame {
    display: block; position: sticky; top: calc(var(--header-h, 80px) + var(--sp-5)); aspect-ratio: 4 / 5; max-height: calc(100vh - var(--header-h, 80px) - var(--sp-8));
    border-radius: var(--img-radius); overflow: hidden; background: var(--bg-2);
  }
}
.ref-plate { position: absolute; inset: 0; margin: 0; opacity: 0; transition: opacity .55s var(--ease-out); }
.ref-plate.is-on { opacity: 1; }
.ref-plate__img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; filter: saturate(.72) brightness(.78); transform: scale(1.05); transition: transform 1.4s var(--ease-out); }
.ref-plate.is-on .ref-plate__img { transform: none; }
.ref-plate::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, color-mix(in srgb, var(--bg) 92%, transparent), color-mix(in srgb, var(--bg) 20%, transparent) 55%, transparent); }
.ref-plate figcaption { position: absolute; z-index: 1; left: var(--sp-6); right: var(--sp-6); bottom: var(--sp-6); display: flex; flex-direction: column; align-items: flex-start; gap: var(--sp-1); }
.ref-plate figcaption b { font-family: var(--font-head); font-size: 1.25rem; line-height: 1.3; }
.ref-plate figcaption span { font-size: var(--fs-small); color: var(--fg-muted); }
.ref-plate__logo { max-height: 48px; max-width: 200px; margin-bottom: var(--sp-4); }
.ref-plate__logo.is-square { max-height: 64px; }
.ref-plate__case { margin-top: var(--sp-2); color: var(--fg) !important; font-weight: 600; }
.ref-plate--type { background: radial-gradient(90% 70% at 80% 10%, color-mix(in srgb, var(--brand) 9%, transparent), transparent 70%), color-mix(in srgb, var(--fg) 3%, var(--bg-2)); }
.ref-plate--type::after { display: none; }
.ref-plate__mono { position: absolute; top: var(--sp-6); left: var(--sp-6); font-family: var(--font-head); font-weight: 700; font-size: clamp(6rem, 11vw, 10rem); line-height: .9; letter-spacing: -.04em; color: color-mix(in srgb, var(--fg) 10%, transparent); }
.ref-plate--type figcaption b { font-size: 1.5rem; }
.ref-plate--type figcaption span:first-of-type { max-width: 32ch; color: var(--fg); font-size: var(--fs-body); }

/* ---------- R6 showcase: six up close (lusion-style cards), sixteen as tiles ----------
   Photos stay whole: no text on them, only the client's white logo on a soft foot shade. The
   plate and the photo tiles are dark in both themes (#14161c), so the white logos always read. */
.ref-sc__part[hidden] { display: none; }
.ref-sc__top { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--sp-8) var(--sp-6); }
.ref-card { display: block; color: inherit; text-decoration: none; }
.ref-card__media { position: relative; isolation: isolate; aspect-ratio: 3 / 2; border-radius: var(--img-radius, 8px); overflow: hidden; background: #14161c; }
/* round 23: the photos drift with the scroll (the kit's .parallax, 01). The img's transform is the drift, so the
   hover zoom moves the frame (.ref-px) instead; --ref-b is set on the frame and inherited */
:is(.ref-card__media, .ref-tile__media) > .ref-px { position: absolute; inset: 0; transition: transform 1.2s var(--ease-out); }
.ref-card__img { filter: brightness(var(--ref-b, 1)); transition: filter .6s var(--ease-out); }
.ref-card__media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgb(0 0 0 / .5), rgb(0 0 0 / 0) 40%); pointer-events: none; }
.ref-card__logo { position: absolute; z-index: 1; left: var(--sp-5); bottom: var(--sp-5); }
.ref-card__meta { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: var(--sp-1) var(--sp-5); align-items: baseline; padding-top: var(--sp-4); }
.ref-card__name { margin: 0; font-size: clamp(1.25rem, 1.6vw, 1.5rem); line-height: 1.25; }
.ref-card__tags { font-size: var(--fs-small); color: var(--fg-muted); text-align: right; }
.ref-card__line { grid-column: 1 / -1; max-width: 50ch; color: var(--fg-muted); }
.ref-card .ref-case { grid-column: 1 / -1; justify-self: start; margin-top: var(--sp-2); }
.ref-card--story:focus-visible { outline: 2px solid var(--brand); outline-offset: 4px; border-radius: var(--radius-card, 8px); }
@media (hover: hover) {
  .ref-card:hover .ref-px { transform: scale(1.03); }
  .ref-card:hover .ref-card__img { filter: brightness(calc(var(--ref-b, 1) * 1.12)); }
  .ref-card--story .ref-case svg { transition: transform .35s var(--ease-out); }
  .ref-card--story:hover .ref-case svg { transform: translateX(3px); }
}
.ref-sc__part--rest { margin-top: var(--sp-9); padding-top: var(--sp-6); border-top: 1px solid color-mix(in srgb, var(--fg) 22%, transparent); }
.ref-sc__sub { margin-bottom: var(--sp-5); font-size: var(--fs-small); color: var(--fg-muted); }
.ref-sc__rest { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--sp-7) var(--sp-5); }
.ref-tile__media { position: relative; display: grid; place-items: center; aspect-ratio: 3 / 2; padding-inline: 12%; border-radius: var(--img-radius, 8px); overflow: hidden; background: #14161c; }
.ref-tile__media.is-plate { background: radial-gradient(110% 90% at 50% 0%, rgb(255 255 255 / .06), rgb(255 255 255 / 0) 70%), #14161c; }
.ref-tile__img { filter: brightness(.52) saturate(.85); transition: filter .6s var(--ease-out); }
.ref-tile__logo { position: relative; z-index: 1; max-width: min(240px, 100%) !important; }
.ref-tile__text { padding-top: var(--sp-3); }
.ref-tile__name { font-family: var(--font-head); font-weight: 600; font-size: 1.0625rem; line-height: 1.3; }
.ref-tile__line { margin-top: 2px; max-width: 40ch; font-size: var(--fs-small); line-height: 1.45; color: var(--fg-muted); }
.ref-tile__tags { margin-top: var(--sp-2); font-size: var(--fs-small); color: var(--fg-dim); }
@media (hover: hover) { .ref-tile:hover .ref-tile__img { filter: brightness(.64) saturate(.9); } .ref-tile:hover .ref-px { transform: scale(1.03); } }
@media (max-width: 1100px) { .ref-sc__rest { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 900px) { .ref-sc__rest { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 767px) {
  .ref-sc__top { grid-template-columns: minmax(0, 1fr); gap: var(--sp-7); }
  .ref-card__logo { left: var(--sp-4); bottom: var(--sp-4); }
  .ref-card__meta { grid-template-columns: minmax(0, 1fr); }
  .ref-card__tags { grid-row: 3; text-align: left; margin-top: var(--sp-1); }
  .ref-sc__part--rest { margin-top: var(--sp-8); padding-top: var(--sp-5); }
  /* phones: the sixteen as a compact list, tile left, words right */
  .ref-sc__rest { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .ref-tile { display: grid; grid-template-columns: minmax(0, 11fr) minmax(0, 14fr); gap: var(--sp-4); align-items: center; padding-block: var(--sp-4); border-bottom: 1px solid var(--hairline); }
  .ref-sc__rest .ref-item:first-child .ref-tile { padding-top: 0; }
  .ref-tile__media { padding-inline: 10%; }
  .ref-tile__logo { max-width: 100% !important; max-height: 56px; }
  .ref-tile__text { padding-top: 0; }
  .ref-tile__name { font-size: 1rem; }
}

/* ---------- the quote (both pages) ---------- */
.ref-quote, .case2-quote { padding-block: var(--sp-9); }
.ref-quote__fig, .case2-quote__fig { margin: 0; max-width: 62rem; }
.ref-quote blockquote, .case2-quote blockquote { margin: 0; }
.ref-quote blockquote p, .case2-quote blockquote p { font-family: var(--font-head); font-weight: 500; font-size: clamp(1.5rem, 2.9vw, 2.625rem); line-height: 1.24; letter-spacing: -.012em; text-wrap: pretty; }
.ref-quote figcaption, .case2-quote figcaption { display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-5); margin-top: var(--sp-6); padding-top: var(--sp-5); border-top: 1px solid var(--hairline); max-width: 30rem; }
.ref-quote__logo { max-height: 30px; max-width: 150px; }
/* the case page shows its client's logo at the kit's client size (240px wide cap, 2026-09-13) */
.case2-quote__logo { width: 240px; max-width: 100%; max-height: 64px; }
.ref-quote figcaption span, .case2-quote figcaption span { font-size: var(--fs-small); color: var(--fg-muted); }
.ref-quote figcaption b, .case2-quote figcaption b { display: block; color: var(--fg); font-weight: 600; }

/* ================= Case ================= */

/* ---------- hero: outcome first, the photo fading into the ground ---------- */
.case2-hero { position: relative; overflow: hidden; padding-top: calc(var(--header-h, 80px) + var(--sp-7)); }
.case2-hero__media { position: absolute; top: 0; right: 0; bottom: 0; width: min(66%, 1200px); margin: 0; }
.case2-hero__img {
  width: 100%; height: 100%; object-fit: cover; object-position: 72% 42%; filter: brightness(1.35);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 44%), linear-gradient(0deg, transparent 4%, #000 34%);
  -webkit-mask-composite: source-in; mask-image: linear-gradient(90deg, transparent, #000 44%), linear-gradient(0deg, transparent 4%, #000 34%); mask-composite: intersect;
}
.case2-hero__grid { position: relative; z-index: 1; min-height: min(58vh, 560px); display: grid; align-items: center; }
.case2-hero__copy { max-width: 38rem; }
.case2-crumbs { display: flex; flex-wrap: wrap; gap: var(--sp-2); margin-bottom: var(--sp-6); font-size: var(--fs-small); color: var(--fg-muted); }
.case2-crumbs a { color: var(--fg-muted); text-decoration: underline; text-decoration-color: color-mix(in srgb, currentColor 35%, transparent); text-underline-offset: .22em; }
.case2-crumbs a:hover { color: var(--fg); }
.case2-hero h1 { max-width: 13ch; margin-top: var(--sp-3); }
.case2-hero .lead { margin-top: var(--sp-5); max-width: 46ch; color: var(--fg-muted); }
.case2-hero__acts { margin-top: var(--sp-6); }
.case2-glance { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 1fr 1.15fr 1.25fr; margin: var(--sp-8) 0 0; border-top: 1px solid color-mix(in srgb, var(--fg) 22%, transparent); }
.case2-glance > div { padding: var(--sp-5) var(--sp-5) var(--sp-5) 0; }
.case2-glance > div + div { padding-left: var(--sp-5); border-left: 1px solid var(--hairline); }
.case2-glance dt { font-size: var(--fs-small); color: var(--fg-muted); }
.case2-glance dd { margin: var(--sp-2) 0 0; font-weight: 500; line-height: 1.45; }
.case2-glance__logo { width: 240px; max-width: 100%; max-height: 64px; margin: 2px 0 var(--sp-3); }
.case2-proof { display: flex; align-items: center; gap: var(--sp-2); position: relative; z-index: 1; padding-block: var(--sp-4) var(--sp-7); border-top: 1px solid var(--hairline); font-size: var(--fs-small); color: var(--fg-muted); }
.case2-tick { flex: none; width: 16px; height: 16px; fill: none; stroke: var(--brand); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
@media (max-width: 1024px) {
  .case2-glance { grid-template-columns: 1fr 1fr; }
  .case2-glance > div:nth-child(3) { padding-left: 0; border-left: 0; }
  .case2-glance > div:nth-child(n + 3) { border-top: 1px solid var(--hairline); }
}
@media (max-width: 900px) {
  .case2-hero { padding-top: var(--header-h, 72px); }
  .case2-hero__media { position: relative; width: 100%; height: auto; aspect-ratio: 4 / 3; }
  .case2-hero__img { -webkit-mask-image: linear-gradient(0deg, transparent, #000 45%); mask-image: linear-gradient(0deg, transparent, #000 45%); }
  .case2-hero__grid { min-height: 0; margin-top: calc(var(--sp-8) * -1); }
}
@media (max-width: 560px) {
  .case2-glance { grid-template-columns: minmax(0, 1fr); }
  .case2-glance > div, .case2-glance > div + div { padding: var(--sp-4) 0; border-left: 0; }
  .case2-glance > div + div { border-top: 1px solid var(--hairline); }
  .case2-glance__logo { width: 180px; }
}

/* ---------- shared section head ---------- */
.case2-change, .case2-flow, .case2-ch, .case2-st, .case2-fit, .case2-next { padding-block: var(--sp-9); }
.case2-head { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: var(--sp-3) var(--sp-8); align-items: end; }
.case2-head .eyebrow { grid-column: 1 / -1; margin: 0; }
.case2-head h2 { max-width: 18ch; font-size: clamp(2rem, 3.8vw, 3.375rem); }
.case2-head__lead { max-width: 48ch; color: var(--fg-muted); }
@media (max-width: 900px) { .case2-head { grid-template-columns: minmax(0, 1fr); } }

/* ---------- C1 before → today ---------- */
.case2-ba { --ba: minmax(0, .55fr) minmax(0, 1fr) 2.5rem minmax(0, 1fr); margin-top: var(--sp-7); }
.case2-ba__cols { display: grid; grid-template-columns: var(--ba); gap: var(--sp-5); padding-bottom: var(--sp-3); border-bottom: 1px solid color-mix(in srgb, var(--fg) 22%, transparent); font-size: var(--fs-small); color: var(--fg-muted); }
.case2-ba__row { display: grid; grid-template-columns: var(--ba); gap: var(--sp-5); align-items: baseline; margin: 0; padding-block: var(--sp-5); border-bottom: 1px solid color-mix(in srgb, var(--fg) 14%, transparent); }
.case2-ba__row dt { font-family: var(--font-head); font-weight: 600; font-size: 1.125rem; }
.case2-ba__row dd { margin: 0; }
.case2-ba__before { color: var(--fg-muted); }
.case2-ba__arrow { color: var(--brand-ink); font-size: 1.25rem; line-height: 1; }
.case2-ba__after { display: flex; gap: .6em; font-weight: 500; }
.case2-ba__after .case2-tick { margin-top: .3em; }
.case2-ba__k { display: none; }
@media (max-width: 760px) {
  .case2-ba__cols { display: none; }
  .case2-ba__row { grid-template-columns: minmax(0, 1fr); gap: var(--sp-2); }
  .case2-ba__arrow { display: none; }
  .case2-ba__k { display: block; margin-bottom: 2px; font-size: var(--fs-small); color: var(--fg-muted); font-weight: 500; }
  .case2-ba__after { flex-wrap: wrap; }
  .case2-ba__after .case2-ba__k { width: 100%; }
  .case2-ba__after > span:last-child { flex: 1 1 0; min-width: 0; }
}

/* ---------- the systems flow ---------- */
.case2-map { position: relative; margin: var(--sp-8) 0 0; }
.case2-map__grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.2fr) minmax(0, .9fr); gap: clamp(3rem, 8vw, 8rem); align-items: center; }
.case2-map__col { display: flex; flex-direction: column; align-items: flex-start; gap: var(--sp-3); }
.case2-map__col--out { align-items: flex-end; text-align: right; }
.case2-map__k { font-size: var(--fs-small); color: var(--fg-muted); }
.case2-map__note { font-size: var(--fs-small); color: var(--fg-muted); }
.case2-node { display: inline-flex; align-items: center; min-height: 48px; padding: 0 var(--sp-4); border: 1px solid color-mix(in srgb, var(--fg) 24%, transparent); border-radius: var(--radius-card); background: var(--bg-2); font-weight: 600; }
.case2-node--core { display: block; width: 100%; padding: var(--sp-5); border-color: color-mix(in srgb, var(--brand) 70%, transparent); box-shadow: 0 0 0 1px color-mix(in srgb, var(--brand) 25%, transparent), 0 0 70px -18px color-mix(in srgb, var(--brand) 55%, transparent); }
.case2-node--core b { display: block; font-family: var(--font-head); font-size: 1.5rem; }
.case2-node--core span { display: block; margin-top: var(--sp-2); font-weight: 400; font-size: var(--fs-small); color: var(--fg-muted); }
.case2-loop { display: flex; gap: var(--sp-3); align-items: flex-start; margin: var(--sp-2) 0 0; padding: var(--sp-3) var(--sp-4); border: 1px dashed color-mix(in srgb, var(--fg) 30%, transparent); border-radius: var(--radius-card); background: var(--bg-2); font-size: var(--fs-small); color: var(--fg-muted); }
.case2-loop svg { flex: none; width: 20px; height: 20px; fill: none; stroke: var(--brand); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.case2-map__wires { position: absolute; inset: 0; z-index: 0; width: 100%; height: 100%; overflow: visible; pointer-events: none; }
.case2-wire { fill: none; stroke: color-mix(in srgb, var(--fg) 32%, transparent); stroke-width: 1.25; }
.case2-pulse { fill: var(--brand); }
@media (max-width: 760px) {
  .case2-map__grid { grid-template-columns: minmax(0, 1fr); gap: var(--sp-8); }
  .case2-map__col--in, .case2-map__col--out { flex-direction: row; flex-wrap: wrap; justify-content: center; text-align: center; }
  .case2-map__col--in .case2-map__k, .case2-map__col--out .case2-map__k, .case2-map__note { width: 100%; text-align: center; }
  .case2-map__col--core .case2-map__k { align-self: center; }
  .case2-node { min-height: 44px; padding: 0 var(--sp-3); }
}

/* ---------- three chapters beside a photo ---------- */
.case2-ch__grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: var(--sp-8); align-items: start; }
.case2-ch__media { position: sticky; top: calc(var(--header-h, 80px) + var(--sp-5)); margin: 0; aspect-ratio: 4 / 5; border-radius: var(--img-radius); overflow: hidden; background: var(--bg-2); }
.case2-ch__media img { width: 100%; height: 100%; object-fit: cover; object-position: 58% 50%; }
.case2-ch__list > .eyebrow { margin-bottom: var(--sp-5); }
.case2-ch__item { padding-block: var(--sp-6); border-top: 1px solid var(--hairline); }
.case2-ch__n { font-size: var(--fs-small); color: var(--fg-muted); font-variant-numeric: tabular-nums; }
.case2-ch__item h2 { margin-top: var(--sp-2); max-width: 24ch; font-size: var(--fs-h3); }
.case2-ch__item p { margin-top: var(--sp-3); max-width: 62ch; color: var(--fg-muted); line-height: 1.65; }
.case2-ch__item p b { color: var(--fg); font-weight: 600; }
@media (max-width: 900px) {
  .case2-ch__grid { grid-template-columns: minmax(0, 1fr); gap: var(--sp-6); }
  .case2-ch__media { position: relative; top: auto; aspect-ratio: 3 / 2; }
}

/* ---------- C2 one order, four stations ---------- */
.case2-st__grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: var(--sp-8); margin-top: var(--sp-7); }
.case2-track { --row: 108px; position: sticky; top: calc(var(--header-h, 80px) + var(--sp-6)); padding: var(--sp-6); border-radius: var(--radius-card); background: color-mix(in srgb, var(--fg) 4%, transparent); }
.case2-track__cap { display: flex; align-items: center; gap: .6em; font-size: var(--fs-small); font-weight: 600; }
.case2-track__cap svg { width: 20px; height: 20px; fill: none; stroke: var(--fg); stroke-width: 1.5; stroke-linejoin: round; }
.case2-track__list { position: relative; list-style: none; margin: 0 0 0 2px; padding: 0; }
.case2-stn { position: relative; height: var(--row); padding-left: 44px; }
/* the hand-off into this station: dashed (by hand), then a red line drawn over it */
.case2-stn::before, .case2-stn::after { content: ""; position: absolute; left: 7px; top: 6px; bottom: 20px; width: 0; }
.case2-stn::before { border-left: 1.5px dashed color-mix(in srgb, var(--fg) 38%, transparent); }
.case2-stn::after { left: 6px; width: 3px; border-radius: 2px; background: var(--brand); transform: scaleY(0); transform-origin: top; transition: transform .7s var(--ease-out); }
.case2-stn.is-done::after { transform: none; }
.case2-stn__node { position: absolute; left: 0; bottom: 0; width: 16px; height: 16px; border-radius: 50%; border: 1.5px solid color-mix(in srgb, var(--fg) 45%, transparent); background: var(--bg-2); transition: background-color .4s, border-color .4s, box-shadow .4s; }
.case2-stn.is-done .case2-stn__node { background: var(--brand); border-color: var(--brand); }
.case2-stn.is-cur .case2-stn__node { box-shadow: 0 0 0 6px color-mix(in srgb, var(--brand) 22%, transparent); }
.case2-stn b { position: absolute; left: 44px; bottom: 18px; font-family: var(--font-head); font-size: 1.125rem; color: var(--fg-muted); transition: color .4s; }
.case2-stn.is-done b { color: var(--fg); }
.case2-stn__sys { position: absolute; left: 44px; bottom: -4px; font-size: var(--fs-small); color: var(--fg-muted); white-space: nowrap; }
.case2-stn__hand, .case2-stn__auto { position: absolute; left: 22px; top: 26px; font-size: 12px; letter-spacing: .02em; transition: opacity .45s, transform .45s var(--ease-out); }
.case2-stn__hand { color: var(--fg-muted); font-style: italic; }
.case2-stn__auto { color: var(--fg); opacity: 0; transform: translateY(4px); }
.case2-stn.is-done .case2-stn__hand { opacity: 0; transform: translateY(-4px); }
.case2-stn.is-done .case2-stn__auto { opacity: 1; transform: none; }
/* the order itself, travelling to the current station */
.case2-track__dot { position: absolute; left: 2px; top: -14px; width: 12px; height: 12px; border-radius: 3px; background: var(--fg); box-shadow: 0 0 0 4px color-mix(in srgb, var(--fg) 12%, transparent); transform: translateY(calc(var(--step) * var(--row))); transition: transform .8s var(--ease-out); list-style: none; }
.case2-track[data-step="0"] .case2-track__dot { transform: translateY(0); }
.case2-track__end { margin-top: var(--sp-6); padding-top: var(--sp-4); border-top: 1px solid var(--hairline); font-weight: 600; opacity: 0; transition: opacity .5s; }
.case2-track[data-step="4"] .case2-track__end { opacity: 1; }
.case2-panels { list-style: none; margin: 0; padding: 0; }
.case2-panel { min-height: 56vh; display: flex; flex-direction: column; justify-content: center; padding: var(--sp-6) 0 var(--sp-6) var(--sp-6); border-left: 2px solid color-mix(in srgb, var(--fg) 10%, transparent); transition: border-color .4s; }
.case2-panel.is-cur { border-left-color: var(--brand); }
.case2-panel__n { font-size: var(--fs-small); color: var(--fg-muted); font-variant-numeric: tabular-nums; }
.case2-panel h3 { margin-top: var(--sp-2); font-size: var(--fs-h3); }
.case2-panel dl { display: grid; gap: var(--sp-4); margin: var(--sp-5) 0 0; }
.case2-panel dt { font-size: var(--fs-small); color: var(--fg-muted); }
.case2-panel dd { margin: var(--sp-1) 0 0; max-width: 46ch; }
.case2-panel__before dd { color: var(--fg-muted); }
.case2-panel__now dd { font-size: var(--fs-lead); font-weight: 500; line-height: 1.4; }
.case2-panel__detail { margin-top: var(--sp-5); padding-top: var(--sp-3); border-top: 1px solid var(--hairline); max-width: 46ch; font-size: var(--fs-small); color: var(--fg-muted); }
.case2-mini { display: none; }
.case2-st.is-calm * { transition: none !important; }
@media (max-width: 900px) {
  .case2-st__grid { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .case2-st__stage { display: none; }
  .case2-panel { min-height: 0; padding: var(--sp-6) 0; border-left: 0; border-top: 1px solid var(--hairline); }
  .case2-mini { display: flex; gap: 6px; list-style: none; margin: 0 0 var(--sp-4); padding: 0; }
  .case2-mini li { flex: 1; height: 3px; border-radius: 2px; background: color-mix(in srgb, var(--fg) 18%, transparent); }
  .case2-mini li.is-done { background: var(--brand); }
}

/* ---------- is this your setup? ---------- */
.case2-fit__grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: var(--sp-8); align-items: start; }
.case2-fit h2 { margin-top: var(--sp-3); max-width: 16ch; font-size: clamp(1.875rem, 3.2vw, 2.75rem); }
.case2-checks { list-style: none; margin: 0; padding: 0; border-top: 1px solid color-mix(in srgb, var(--fg) 22%, transparent); }
.case2-checks label { display: grid; grid-template-columns: 26px minmax(0, 1fr); gap: var(--sp-4); align-items: start; padding-block: var(--sp-4); border-bottom: 1px solid color-mix(in srgb, var(--fg) 14%, transparent); cursor: pointer; }
.case2-checks input { appearance: none; -webkit-appearance: none; display: grid; place-items: center; width: 24px; height: 24px; margin: 1px 0 0; border: 1.5px solid color-mix(in srgb, var(--fg) 50%, transparent); border-radius: 50%; background: transparent; cursor: pointer; transition: background-color .25s, border-color .25s; }
.case2-checks input::after { content: ""; width: 10px; height: 5px; margin-top: -2px; border-left: 2px solid #fff; border-bottom: 2px solid #fff; transform: rotate(-45deg) scale(0); transition: transform .25s var(--ease-out); }
.case2-checks input:checked { background: var(--brand); border-color: var(--brand); }
.case2-checks input:checked::after { transform: rotate(-45deg) scale(1); }
.case2-checks input:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; }
.case2-checks span { color: var(--fg-muted); transition: color .25s; }
.case2-checks input:checked + span { color: var(--fg); }
.case2-fit__out { margin-top: var(--sp-5); min-height: 1.6em; color: var(--fg-muted); }
.case2-fit.is-hit .case2-fit__out { color: var(--fg); font-weight: 600; }
.case2-fit__acts { display: flex; flex-wrap: wrap; gap: var(--sp-3) var(--sp-6); margin-top: var(--sp-4); }
@media (max-width: 900px) { .case2-fit__grid { grid-template-columns: minmax(0, 1fr); gap: var(--sp-6); } }

/* ---------- onward: five more brands ---------- */
.case2-next__grid { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: var(--sp-8); align-items: end; }
.case2-next h2 { margin-top: var(--sp-3); max-width: 14ch; font-size: clamp(1.875rem, 3vw, 2.625rem); }
.case2-next .link { margin-top: var(--sp-5); }
.case2-next__list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: var(--sp-3); }
.case2-next__tile { position: relative; display: grid; place-items: center; aspect-ratio: 3 / 4; border-radius: var(--img-radius); overflow: hidden; background: var(--bg-2); }
.case2-next__bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .34; filter: saturate(.5); }
.case2-next__logo { position: relative; max-width: 72%; max-height: 64px; }
.case2-next__logo.is-square { max-height: 64px; }
.case2-next__list p { margin-top: var(--sp-2); font-size: var(--fs-small); color: var(--fg-muted); line-height: 1.4; }
.case2-next__list p b { display: block; color: var(--fg); font-weight: 600; }
@media (max-width: 1024px) {
  .case2-next__grid { grid-template-columns: minmax(0, 1fr); gap: var(--sp-6); }
}
@media (max-width: 700px) {
  .case2-next__list { grid-template-columns: none; grid-auto-flow: column; grid-auto-columns: 44%; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: var(--sp-2); }
  .case2-next__list li { scroll-snap-align: start; }
  .case2-next__logo { max-height: 56px; }
  .case2-next__logo.is-square { max-height: 56px; }
}

/* ---------- kit:refs-hero-ribbon (2026-09-13, the user's reference): logo cards on the 3D ribbon ---------- */
.ref-rib { position: relative; isolation: isolate; overflow: hidden; display: flex; align-items: center;
  min-height: min(100svh, 900px); padding-block: calc(var(--header-h, 80px) + var(--sp-7)) var(--sp-8); }
.ref-rib__waves { position: absolute; inset: -8% 0; z-index: -1; pointer-events: none; }
.ref-rib__waves > canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.ref-rib__grid { position: relative; width: 100%; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: var(--sp-8); align-items: center; }
.ref-rib h1 { max-width: 12ch; margin-top: var(--sp-3); }
.ref-rib .lead { max-width: 34rem; margin-top: var(--sp-4); color: var(--fg-muted); }
.ref-rib__acts { display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-3) var(--sp-6); margin-top: var(--block-gap, var(--sp-6)); }
.ref-rib__cards { position: relative; list-style: none; margin: 0; padding: 0; height: clamp(440px, 42vw, 620px); perspective: 1100px; }
.ref-rib__item { position: absolute; left: var(--x); top: var(--y); width: clamp(150px, 13vw, 210px); translate: -50% -50%; }
.ref-rib__float { animation: ref-rib-float 7s ease-in-out infinite; animation-delay: calc(var(--d) * -1.3s); }
.ref-rib__card { display: grid; place-items: center; aspect-ratio: 3 / 2.1; padding: 8% 14%; border-radius: 8px; border: 1px solid rgb(255 255 255 / .12);
  background: linear-gradient(155deg, rgb(255 255 255 / .08), rgb(255 255 255 / .015) 60%), color-mix(in srgb, var(--bg) 62%, transparent);
  backdrop-filter: blur(6px); box-shadow: 0 24px 48px -12px rgb(0 0 0 / .7), 0 0 30px -10px color-mix(in srgb, var(--brand) 50%, transparent);
  transform: rotateY(var(--ry)) rotateZ(var(--rz)); transition: transform .6s var(--ease-out), border-color .3s; }
.ref-rib__card img { width: auto; max-width: 100%; max-height: 72px; opacity: .92; }
a.ref-rib__card:hover, a.ref-rib__card:focus-visible { transform: none; border-color: rgb(255 255 255 / .3); }
@keyframes ref-rib-float { 50% { translate: 0 -8px; } }
@media (prefers-reduced-motion: reduce) { .ref-rib__float { animation: none; } }
@media (max-width: 900px) {
  .ref-rib { min-height: 0; }
  /* phones: the ribbon runs behind the cards only, never over the copy */
  .ref-rib__waves { inset: auto 0 0 0; height: 46%; }
  .ref-rib__grid { grid-template-columns: minmax(0, 1fr); }
  .ref-rib__cards { height: auto; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--sp-3); perspective: none; }
  .ref-rib__item { position: static; width: auto; translate: none; }
  .ref-rib__card { transform: none; }
  .ref-rib__card { padding: 6% 10%; min-height: 92px; }   /* room for a 64px logo on a phone (LOGO-03) */
  .ref-rib__card img { max-height: 64px; }
}