/* ================================================================
   Matrices — the site rebuilt around the six tests
   ================================================================ */

/* ---------- Shared section headings ---------- */

.matrix-section__body,
.code-section__body,
.print-section__body {
  grid-column: 2 / -1;
  min-width: 0;
}

.matrix-section__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: clamp(24px, 4vw, 64px);
  margin-bottom: clamp(30px, 4vw, 52px);
}

.matrix-section__head .display {
  max-width: 10ch;
}

.matrix-section__head p {
  max-width: 34ch;
  margin-top: 18px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.55;
}

.matrix-section__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--ink);
  color: var(--ink);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color 180ms ease, border-color 180ms ease;
}

.matrix-section__link span {
  color: var(--red-deep);
  font-size: 13px;
}

.matrix-section__link:hover {
  color: var(--red-deep);
  border-color: var(--red-deep);
}

/* ---------- Six preview tiles (home) ---------- */

.matrix-tiles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(26px, 3vw, 42px) clamp(18px, 2.2vw, 30px);
}

.matrix-tile {
  min-width: 0;
}

.matrix-tile__open {
  display: block;
  color: inherit;
}

.matrix-tile__frame {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1;
  padding: clamp(10px, 1.2vw, 16px);
  border: 1px solid var(--rule);
  background: #fcfcf8;
  transition: transform 420ms var(--ease), border-color 220ms ease,
    box-shadow 420ms var(--ease);
}

.matrix-tile__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 700ms var(--ease);
}

.matrix-tile__open:hover .matrix-tile__frame,
.matrix-tile__open:focus-visible .matrix-tile__frame {
  transform: translateY(-4px);
  border-color: var(--ink);
  box-shadow: 9px 14px 28px rgba(23, 23, 19, 0.13);
}

.matrix-tile__open:hover .matrix-tile__img {
  transform: scale(1.018);
}

.matrix-tile__meta {
  margin-top: 13px;
  padding-top: 11px;
  border-top: 1px solid var(--rule);
}

.matrix-tile__index {
  color: var(--ink-faint);
  font-size: 11px;
  line-height: 1.4;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.matrix-tile__line {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-top: 4px;
}

.matrix-tile__line h3 {
  color: var(--ink);
  font-family: var(--display);
  font-size: clamp(22px, 2vw, 28px);
  font-weight: 650;
  font-stretch: 88%;
  line-height: 1;
  letter-spacing: -0.04em;
}

.matrix-tile__line h3 span {
  display: inline-block;
  margin-left: 4px;
  color: var(--red-deep);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0;
  transform: translateY(-1px);
  transition: transform 220ms var(--ease);
}

.matrix-tile__open:hover h3 span {
  transform: translate(2px, -3px);
}

.matrix-tile__dims {
  flex: 0 0 auto;
  color: var(--ink-soft);
  font-size: 11px;
  line-height: 1.4;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.matrix-tile__cells {
  margin-top: 3px;
  color: var(--ink-faint);
  font-size: 11px;
  line-height: 1.4;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

/* ---------- Code section ---------- */

.code-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
  gap: clamp(36px, 6vw, 104px);
  align-items: start;
}

.code-head .display {
  max-width: 8ch;
}

.code-lede {
  max-width: 34ch;
  margin-top: 24px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.55;
}

.code-note {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  padding-top: 12px;
  border-top: 1px solid var(--rule);
  color: var(--ink-faint);
  font-size: 11px;
  line-height: 1.45;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.code-note span {
  color: var(--red-deep);
  font-size: 13px;
}

.code-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0 22px;
  border-top: 1px solid var(--ink);
}

.code-item {
  min-width: 0;
  padding: 16px 0 24px;
  border-bottom: 1px solid var(--rule);
}

.code-swatch {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  margin-bottom: 14px;
  border: 1px solid var(--rule);
  background: var(--paper-2);
  color: var(--ink);
}

.code-swatch svg {
  display: block;
  width: 100%;
  height: 100%;
}

.code-swatch--empty {
  background:
    linear-gradient(45deg, transparent 48.6%, var(--rule) 49%, var(--rule) 51%, transparent 51.4%),
    var(--paper-2);
}

.code-meta {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.code-value {
  color: var(--red-deep);
  font-size: 11px;
  line-height: 1.4;
  letter-spacing: 0.04em;
}

.code-name {
  color: var(--ink);
  font-family: var(--display);
  font-size: clamp(19px, 1.55vw, 23px);
  font-weight: 640;
  font-stretch: 88%;
  line-height: 1;
  letter-spacing: -0.035em;
}

.code-desc {
  max-width: 24ch;
  margin-top: 7px;
  color: var(--ink-soft);
  font-size: 12.5px;
  line-height: 1.45;
}

/* ---------- Print section ---------- */

.print-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: clamp(38px, 6vw, 108px);
  align-items: center;
}

.print-copy .display {
  max-width: 9ch;
}

.print-lede {
  max-width: 46ch;
  margin-top: 22px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.6;
}

.print-specs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin-top: 28px;
  border-top: 1px solid var(--ink);
}

.print-specs li {
  padding: 12px 14px 0 0;
}

.print-specs li + li {
  padding-left: 14px;
  border-left: 1px solid var(--rule);
}

.print-specs span {
  display: block;
  color: var(--ink-faint);
  font-size: 11px;
  line-height: 1.4;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.print-specs strong {
  display: block;
  margin-top: 6px;
  color: var(--ink);
  font-family: var(--display);
  font-size: 26px;
  font-weight: 640;
  font-stretch: 86%;
  line-height: 1;
  letter-spacing: -0.04em;
}

.print-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 26px;
  margin-top: 30px;
}

.print-figure {
  justify-self: end;
  width: min(100%, 380px);
  transform: rotate(-2deg);
}

.print-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--rule);
  background: #fff;
  box-shadow: 18px 24px 48px rgba(23, 23, 19, 0.16);
}

.print-figure figcaption {
  margin-top: 13px;
  color: var(--ink-faint);
  font-size: 11px;
  line-height: 1.4;
  letter-spacing: 0.04em;
  text-align: right;
  text-transform: uppercase;
}

.print-aside {
  max-width: 30ch;
  margin-top: 18px;
  color: var(--ink-faint);
  font-size: 11px;
  line-height: 1.5;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

/* ---------- Hero plate: a matrix inside the paper sheet ---------- */

.plate-link--matrix > img {
  aspect-ratio: 210 / 297;
  object-fit: contain;
  padding: 9% 5%;
  background: var(--paper-2);
}

.plate-meta {
  position: relative;
  z-index: 4;
}

/* ---------- Archive: hero / toolbar tweaks ---------- */

.archive-hero__intro {
  max-width: 48ch;
}

.archive-index-card__list dd {
  font-size: 19px;
}

.archive-index-card__cta {
  gap: 12px;
}

/* ---------- Archive: matrix cards ---------- */

.matrix-archive-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(38px, 4.4vw, 68px) clamp(20px, 2.4vw, 36px);
  padding-top: clamp(28px, 4vw, 48px);
}

.matrix-card {
  min-width: 0;
}

.matrix-card[hidden] {
  display: none;
}

.matrix-card__open {
  display: block;
  color: inherit;
}

.matrix-card__sheet {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1;
  padding: clamp(12px, 1.6vw, 20px);
  background: #fcfcf8;
  box-shadow: 11px 17px 38px rgba(0, 0, 0, 0.22);
  transition: transform 500ms var(--ease), box-shadow 500ms var(--ease);
}

.matrix-card__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 750ms var(--ease);
}

.matrix-card__tab {
  position: absolute;
  top: 0;
  left: 18px;
  z-index: 2;
  padding: 7px 10px;
  background: var(--red-deep);
  color: var(--paper-2);
  font-size: 11px;
  line-height: 1;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transform: translateY(-2px);
}

.matrix-card__stamp {
  position: absolute;
  right: 14px;
  bottom: 14px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 9px;
  border: 1px solid var(--ink);
  background: var(--paper-2);
  color: var(--ink);
  font-size: 11px;
  line-height: 1;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  opacity: 0;
  transform: translateY(5px);
  transition: opacity 220ms ease, transform 280ms var(--ease),
    background-color 180ms ease, color 180ms ease;
}

.matrix-card__stamp span {
  color: var(--red-deep);
  font-size: 12px;
}

.matrix-card__open:hover .matrix-card__sheet,
.matrix-card__open:focus-visible .matrix-card__sheet,
.matrix-card:focus-within .matrix-card__sheet {
  transform: translateY(-7px);
  box-shadow: 16px 25px 47px rgba(0, 0, 0, 0.3);
}

.matrix-card__open:hover .matrix-card__img {
  transform: scale(1.012);
}

.matrix-card__open:hover .matrix-card__stamp,
.matrix-card__open:focus-visible .matrix-card__stamp,
.matrix-card:focus-within .matrix-card__stamp {
  opacity: 1;
  transform: translateY(0);
}

.matrix-card__open:hover .matrix-card__stamp {
  background: var(--ink);
  color: var(--paper-2);
  border-color: var(--ink);
}

.matrix-card__open:hover .matrix-card__stamp span {
  color: var(--red-light);
}

.matrix-card__meta {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 15px;
  padding-top: 14px;
}

.matrix-card__category {
  color: rgba(251, 248, 241, 0.68);
  font-size: 11px;
  line-height: 1.4;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.matrix-card__category span {
  color: var(--red-light);
}

.matrix-card__meta h3 {
  margin-top: 5px;
  color: var(--paper-2);
  font-family: var(--display);
  font-size: clamp(22px, 1.9vw, 28px);
  font-weight: 650;
  font-stretch: 88%;
  line-height: 1;
  letter-spacing: -0.04em;
}

.matrix-card__meta h3 a {
  color: inherit;
}

.matrix-card__meta h3 a:hover {
  color: var(--red-light);
}

.matrix-card__subtitle {
  margin-top: 5px;
  color: var(--paper-soft);
  font-size: 12.5px;
  line-height: 1.4;
}

.matrix-card__facts {
  flex: 0 0 auto;
  padding-top: 3px;
  color: rgba(251, 248, 241, 0.7);
  font-size: 11px;
  line-height: 1.5;
  text-align: right;
  text-transform: uppercase;
}

.matrix-card__facts dt {
  color: rgba(251, 248, 241, 0.58);
  font-size: 11px;
}

.matrix-card__facts dd {
  margin-bottom: 6px;
  color: var(--paper-soft);
}

.matrix-card__actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: 13px;
  padding-top: 12px;
  border-top: 1px solid rgba(251, 248, 241, 0.18);
}

.matrix-card__test-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--paper-2);
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: color 180ms ease;
}

.matrix-card__test-link span {
  color: var(--red-light);
  font-size: 12px;
}

.matrix-card__test-link:hover {
  color: var(--red-light);
}

.matrix-card .download-button {
  min-height: 36px;
  border-color: var(--paper-2);
  background: var(--paper-2);
  color: var(--ink);
}

.matrix-card .download-button:hover {
  border-color: var(--red-deep);
  background: var(--red-deep);
  color: var(--paper-2);
}

/* ---------- Responsive ---------- */

.hero-rail::after {
  content: none;
}

@media (max-width: 1240px) {
  .hero-plate {
    padding-right: clamp(12px, 3vw, 36px);
  }

  .plate-link--matrix,
  .plate-meta,
  .sheet-shadow {
    width: min(100%, 420px);
  }

  .matrix-section__head {
    align-items: flex-start;
    flex-direction: column;
    gap: 20px;
  }

  .matrix-section__head .display {
    max-width: 12ch;
  }

  .matrix-section__link {
    align-self: flex-start;
  }

  .code-layout {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .code-head .display {
    max-width: 11ch;
  }

  .code-lede {
    max-width: 48ch;
  }

  .print-layout {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .print-figure {
    justify-self: start;
    width: min(100%, 340px);
  }

  .matrix-archive-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 941px) and (max-width: 1240px) {
  .hero-plate {
    padding-right: clamp(24px, 4vw, 48px);
  }

  .plate-link--matrix,
  .plate-meta,
  .sheet-shadow {
    width: min(100%, 380px);
  }
}

@media (max-width: 940px) {
  .hero-plate {
    padding-right: clamp(8px, 2.4vw, 24px);
  }

  .plate-link--matrix,
  .plate-meta,
  .sheet-shadow {
    width: min(100%, 440px);
  }

  .plate-meta {
    margin-top: 42px;
  }

  .matrix-tiles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .code-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .matrix-section__head .display,
  .code-head .display,
  .print-copy .display {
    max-width: 12ch;
  }
}

@media (max-width: 680px) {
  .matrix-tiles {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .matrix-tile__frame {
    padding: 14px;
  }

  .matrix-tile__line h3 {
    font-size: 27px;
  }

  .matrix-section__head {
    margin-bottom: 26px;
  }

  .matrix-section__head p {
    margin-top: 12px;
  }

  .code-grid {
    grid-template-columns: 1fr;
    border-top: 1px solid var(--ink);
  }

  .code-item {
    display: grid;
    grid-template-columns: 54px minmax(0, 1fr);
    column-gap: 16px;
    align-items: start;
    padding: 14px 0 18px;
  }

  .code-swatch {
    grid-row: span 2;
    margin-bottom: 0;
  }

  .code-meta {
    align-self: end;
  }

  .code-desc {
    max-width: none;
    margin-top: 4px;
  }

  .code-note {
    margin-top: 14px;
  }

  .print-specs {
    grid-template-columns: 1fr;
    border-top: 1px solid var(--ink);
  }

  .print-specs li {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 20px;
    padding: 10px 0;
  }

  .print-specs li + li {
    padding-left: 0;
    border-top: 1px solid var(--rule);
    border-left: 0;
  }

  .print-specs strong {
    margin-top: 0;
    font-size: 22px;
  }

  .print-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
  }

  .print-figure {
    width: min(100%, 310px);
    transform: rotate(-1.4deg);
  }

  .sheet-shadow {
    width: 100%;
  }

  .plate-meta {
    margin-top: 50px;
  }

  .print-figure figcaption {
    text-align: left;
  }

  .matrix-archive-grid {
    grid-template-columns: 1fr;
    gap: 38px;
    padding-top: 23px;
  }

  .matrix-card__sheet {
    padding: 14px;
    box-shadow: 8px 12px 26px rgba(0, 0, 0, 0.2);
  }

  .matrix-card__stamp {
    opacity: 1;
    transform: none;
  }

  .matrix-card__meta h3 {
    font-size: 27px;
  }

  .matrix-card .download-button {
    min-height: 42px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .matrix-tile__frame,
  .matrix-tile__img,
  .matrix-tile__line h3 span,
  .matrix-card__sheet,
  .matrix-card__img,
  .matrix-card__stamp {
    transition: none;
  }
}