.stepper-page {
  --case-panel: #171a18;
  --case-panel-soft: #202320;
}

.stepper-page .site-header a:focus-visible,
.stepper-page main a:focus-visible,
.stepper-page button:focus-visible {
  outline: 1px solid var(--acid);
  outline-offset: 5px;
}

.case-hero {
  position: relative;
  padding-top: 180px;
  padding-bottom: 150px;
}

.case-hero-copy {
  position: relative;
  z-index: 1;
}

.case-eyebrow,
.case-facts dt,
.case-metrics span,
.case-heading > div,
.architecture-tab span,
.architecture-tab small,
.card-index,
.example-label,
.pipeline-topline,
.pipeline-card > strong,
.extension-card > span,
.performance-card > span,
.production-list,
.hero-visual figcaption,
.wide-technical-visual figcaption,
.premiere-visual figcaption {
  font-family: var(--mono);
  letter-spacing: 0.05em;
}

.case-eyebrow {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
}

.case-hero h1 {
  max-width: 1250px;
  margin: 90px 0 64px;
  font-size: clamp(66px, 9vw, 140px);
  font-weight: 500;
  letter-spacing: -0.065em;
  line-height: 0.86;
}

.case-hero h1 span {
  display: block;
  color: #727771;
}

.case-hero h1 em {
  color: var(--acid);
  font-family: Georgia, serif;
  font-weight: 400;
}

.case-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(340px, 0.75fr);
  gap: 90px;
  align-items: end;
}

.case-intro > p {
  max-width: 760px;
  margin: 0;
  color: #b4b7b1;
  font-size: clamp(21px, 2.2vw, 34px);
  letter-spacing: -0.025em;
  line-height: 1.35;
}

.case-facts {
  margin: 0;
  border-top: 1px solid var(--line);
}

.case-facts > div {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 24px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.case-facts dt {
  color: var(--muted);
  font-size: 10px;
  text-transform: uppercase;
}

.case-facts dd {
  margin: 0;
  color: var(--paper);
  font-size: 14px;
}

.case-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 110px;
  border-block: 1px solid var(--line);
}

.case-metrics > div {
  display: flex;
  align-items: end;
  gap: 18px;
  padding: 34px 0 38px;
}

.case-metrics > div + div {
  padding-left: 32px;
  border-left: 1px solid var(--line);
}

.case-metrics strong {
  color: var(--acid);
  font-size: clamp(58px, 6.5vw, 104px);
  font-weight: 500;
  letter-spacing: -0.075em;
  line-height: 0.75;
}

.case-metrics span {
  color: var(--muted);
  font-size: 10px;
  line-height: 1.65;
  text-transform: uppercase;
}

.hero-visual {
  margin: 100px 0 0;
}

.visual-frame {
  padding: 14px;
  background: var(--case-panel);
  border: 1px solid var(--line);
  box-shadow: 0 38px 100px rgba(0, 0, 0, 0.38);
}

.hero-visual img,
.wide-technical-visual img,
.premiere-visual img {
  display: block;
  width: 100%;
  height: auto;
}

.hero-visual figcaption,
.premiere-visual figcaption {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 30px;
  margin-bottom: 18px;
  color: var(--muted);
  font-size: 11px;
}

.hero-visual figcaption span,
.premiere-visual figcaption span {
  color: var(--acid);
  text-transform: uppercase;
}

.case-section {
  padding-block: 160px;
}

.case-heading {
  display: grid;
  grid-template-columns: 180px minmax(0, 1.25fr) minmax(280px, 0.55fr);
  gap: 50px;
  align-items: start;
  margin-bottom: 100px;
}

.case-heading > div {
  display: flex;
  align-items: center;
  gap: 20px;
  padding-top: 10px;
  font-size: 12px;
  text-transform: uppercase;
}

.case-heading > div p {
  margin: 0;
}

.case-heading h2 {
  max-width: 850px;
  margin: 0;
  font-size: clamp(48px, 5.7vw, 86px);
  font-weight: 500;
  letter-spacing: -0.06em;
  line-height: 0.96;
}

.case-heading-copy {
  margin: 10px 0 0;
  color: #666b65;
  font-size: 17px;
  line-height: 1.7;
}

.architecture-section {
  color: var(--ink);
  background: var(--paper);
}

.architecture-section .section-index,
.extension-section .section-index {
  color: #6e920f;
}

.architecture-section .case-heading > div,
.extension-section .case-heading > div {
  color: #666b65;
}

.architecture-explorer {
  --architecture-cycle: 6500ms;
}

.architecture-tabs {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
}

.architecture-tab {
  position: relative;
  min-height: 220px;
  padding: 24px 20px;
  overflow: visible;
  color: var(--ink);
  font: inherit;
  text-align: left;
  background: #deded7;
  border: 1px solid rgba(11, 13, 12, 0.16);
  cursor: pointer;
  transition:
    color 220ms ease,
    background-color 220ms ease,
    transform 220ms ease;
}

.architecture-tab:not(:last-child)::after {
  position: absolute;
  top: 50%;
  right: -10px;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 20px;
  height: 20px;
  color: var(--ink);
  background: var(--acid);
  border-radius: 50%;
  content: "→";
  font-family: var(--mono);
  font-size: 12px;
  transform: translateY(-50%);
}

.architecture-tab:hover {
  transform: translateY(-3px);
}

.architecture-tab[aria-selected="true"] {
  color: var(--paper);
  background: var(--ink);
}

.architecture-tab span {
  display: block;
  color: #696e68;
  font-size: 10px;
  text-transform: uppercase;
}

.architecture-tab[aria-selected="true"] span {
  color: var(--acid);
}

.architecture-tab strong {
  display: block;
  margin-top: 52px;
  font-size: clamp(20px, 2vw, 30px);
  letter-spacing: -0.035em;
  line-height: 1;
}

.architecture-tab small {
  display: block;
  margin-top: 18px;
  color: #666b65;
  font-size: 10px;
  line-height: 1.55;
}

.architecture-tab[aria-selected="true"] small {
  color: #aeb2ac;
}

.architecture-tab i {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 3px;
  background: var(--acid);
  transform: scaleX(0);
  transform-origin: left;
}

.architecture-explorer.is-autoplaying
  .architecture-tab[aria-selected="true"]
  i {
  animation: architecture-progress var(--architecture-cycle) linear forwards;
}

@keyframes architecture-progress {
  to {
    transform: scaleX(1);
  }
}

.architecture-panels {
  margin-top: 12px;
}

.architecture-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
  gap: 70px;
  align-items: stretch;
  min-height: 520px;
  padding: 42px 38px;
  color: var(--paper);
  background: var(--ink);
  border: 1px solid rgba(11, 13, 12, 0.16);
}

.architecture-panel[hidden] {
  display: none;
}

.architecture-panel-copy {
  display: flex;
  flex-direction: column;
}

.card-index {
  color: var(--acid);
  font-size: 10px;
}

.architecture-panel h3 {
  max-width: 620px;
  margin: auto 0 24px;
  font-size: clamp(36px, 4.2vw, 64px);
  font-weight: 500;
  letter-spacing: -0.06em;
  line-height: 0.98;
}

.architecture-panel-copy > p {
  max-width: 620px;
  margin: 0 0 auto;
  color: #aeb2ac;
  font-size: 17px;
  line-height: 1.7;
}

.architecture-panel-example,
.packet-model,
.frame-cycle,
.output-paths {
  align-self: stretch;
  margin: 0;
  padding: 32px;
  background: var(--case-panel-soft);
  border: 1px solid var(--line);
}

.architecture-panel-example {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.example-label {
  margin-bottom: auto;
  color: var(--muted);
  font-size: 10px;
  text-transform: uppercase;
}

.architecture-panel-example > strong {
  color: var(--acid);
  font-size: clamp(34px, 4vw, 62px);
  font-weight: 500;
  letter-spacing: -0.055em;
}

.event-example {
  margin: 38px 0 0;
  border-top: 1px solid var(--line);
}

.event-example > div {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 24px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.event-example dt,
.event-example dd,
.packet-model dt,
.packet-model dd,
.frame-cycle span,
.output-paths span,
.log-example li {
  font-family: var(--mono);
  font-size: 11px;
}

.event-example dt {
  color: var(--muted);
  text-transform: uppercase;
}

.event-example dd {
  margin: 0;
}

.log-example ol,
.packet-model,
.frame-cycle,
.output-paths {
  list-style: none;
}

.log-example ol {
  margin: 80px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.log-example li {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 20px;
  padding: 18px 12px;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
}

.log-example li strong {
  color: var(--paper);
  font-weight: 400;
}

.log-example li.is-current {
  color: var(--ink);
  background: var(--acid);
}

.log-example li.is-current strong {
  color: var(--ink);
}

.packet-model {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
}

.packet-model > div {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 190px;
  padding: 26px;
  background: var(--case-panel-soft);
}

.packet-model dt,
.packet-model dd {
  margin: 0;
}

.packet-model dt {
  color: var(--acid);
  text-transform: uppercase;
}

.packet-model dd {
  max-width: 230px;
  color: #b8bbb5;
  line-height: 1.65;
}

.frame-cycle {
  counter-reset: frame-step;
}

.frame-cycle li {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 24px;
  align-items: center;
  min-height: 25%;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.frame-cycle li:last-child {
  border-bottom: 0;
}

.frame-cycle span {
  color: var(--acid);
}

.frame-cycle strong {
  font-size: clamp(20px, 2.2vw, 34px);
  font-weight: 500;
  letter-spacing: -0.04em;
}

.output-paths {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
}

.output-paths li {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 190px;
  padding: 26px;
  background: var(--case-panel-soft);
}

.output-paths span {
  color: var(--acid);
  text-transform: uppercase;
}

.output-paths strong {
  max-width: 200px;
  font-size: clamp(21px, 2.2vw, 34px);
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 1.05;
}

.wide-technical-visual figcaption {
  padding: 6px 8px 18px;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.6;
}

.pipelines-section {
  background: #242724;
}

.case-heading-light .case-heading-copy {
  color: #9da19b;
}

.case-heading-light > div {
  color: var(--muted);
}

.pipeline-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.pipeline-card {
  min-height: 500px;
  padding: 36px;
  background: var(--ink);
  border: 1px solid var(--line);
}

.pipeline-topline {
  color: var(--muted);
  font-size: 11px;
}

.pipeline-card h3 {
  margin: 100px 0 26px;
  color: var(--acid);
  font-size: clamp(54px, 6vw, 90px);
  font-weight: 500;
  letter-spacing: -0.065em;
  line-height: 0.9;
}

.pipeline-card p {
  max-width: 580px;
  margin: 0;
  color: #aeb2ac;
  font-size: 18px;
  line-height: 1.7;
}

.pipeline-card > strong {
  display: block;
  margin-top: 70px;
  padding-top: 18px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 10px;
  font-weight: 400;
  text-transform: uppercase;
}

.wide-technical-visual {
  margin: 12px 0 0;
  padding: 14px;
  background: var(--ink);
  border: 1px solid var(--line);
}

.wide-technical-visual img {
  min-height: 220px;
  object-fit: contain;
  background: #0d0e0d;
}

.extension-section {
  color: var(--ink);
  background: var(--paper);
}

.extension-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid rgba(11, 13, 12, 0.18);
  border-left: 1px solid rgba(11, 13, 12, 0.18);
}

.extension-card {
  min-height: 360px;
  padding: 30px;
  border-right: 1px solid rgba(11, 13, 12, 0.18);
  border-bottom: 1px solid rgba(11, 13, 12, 0.18);
}

.extension-card > span {
  color: #6e920f;
  font-size: 10px;
  text-transform: uppercase;
}

.extension-card h3 {
  margin: 90px 0 22px;
  font-size: clamp(27px, 2.8vw, 42px);
  font-weight: 500;
  letter-spacing: -0.05em;
  line-height: 1;
}

.extension-card p {
  margin: 0;
  color: #5d625c;
  line-height: 1.7;
}

.action-visual {
  background: #171917;
}

.action-visual img {
  min-height: 150px;
}

.outcomes-section {
  background: var(--ink);
}

.outcome-grid {
  display: grid;
  grid-template-columns: minmax(360px, 0.65fr) minmax(0, 1.35fr);
  gap: 14px;
}

.outcome-copy {
  display: grid;
  gap: 14px;
}

.performance-card,
.production-list {
  padding: 36px;
  background: var(--case-panel);
  border: 1px solid var(--line);
}

.performance-card > span {
  color: var(--muted);
  font-size: 10px;
  text-transform: uppercase;
}

.performance-card strong {
  display: block;
  margin: 70px 0 22px;
  color: var(--acid);
  font-size: clamp(70px, 8vw, 120px);
  font-weight: 500;
  letter-spacing: -0.08em;
  line-height: 0.8;
}

.performance-card p {
  max-width: 480px;
  margin: 0;
  color: #aeb2ac;
  font-size: 17px;
  line-height: 1.7;
}

.production-list .panel-label {
  margin-bottom: 70px;
}

.production-list a {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 18px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
}

.production-list a > span {
  font-family: var(--display);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.03em;
}

.production-list small {
  color: var(--muted);
  font-size: 9px;
  text-transform: uppercase;
}

.production-list i {
  color: var(--acid);
  font-size: 16px;
  font-style: normal;
  transition: transform 180ms ease;
}

.production-list a:hover i,
.production-list a:focus-visible i {
  transform: translate(3px, -3px);
}

.premiere-visual {
  min-width: 0;
  margin: 0;
  padding: 14px;
  background: var(--case-panel);
  border: 1px solid var(--line);
}

.xml-output-stack {
  display: grid;
  gap: 12px;
}

.xml-output-panel {
  padding: 22px;
  background: #111311;
  border: 1px solid var(--line);
}

.xml-output-panel > span {
  display: block;
  margin-bottom: 18px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.xml-output-panel img {
  display: block;
  width: 100%;
  height: auto;
}

.case-contact {
  padding-top: 150px;
}

@media (max-width: 1180px) {
  .case-heading {
    grid-template-columns: 150px minmax(0, 1fr);
  }

  .case-heading-copy {
    grid-column: 2;
    max-width: 650px;
  }

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

  .outcome-grid {
    grid-template-columns: 1fr;
  }

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

}

@media (max-width: 980px) {
  .case-hero {
    padding-top: 150px;
    padding-bottom: 120px;
  }

  .case-intro {
    grid-template-columns: 1fr;
    gap: 50px;
  }

  .case-metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .hero-visual {
    margin-top: 70px;
  }

  .case-section {
    padding-block: 120px;
  }

  .case-heading {
    grid-template-columns: 1fr;
    gap: 32px;
    margin-bottom: 70px;
  }

  .case-heading-copy {
    grid-column: auto;
    margin-top: 0;
  }

  .pipeline-card {
    min-height: 460px;
  }

  .pipeline-card h3 {
    margin-top: 70px;
  }
}

@media (max-width: 900px) {
  .architecture-tabs {
    display: flex;
    padding-bottom: 12px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
  }

  .architecture-tabs::-webkit-scrollbar {
    display: none;
  }

  .architecture-tab {
    flex: 0 0 min(42vw, 280px);
    scroll-snap-align: start;
  }

  .architecture-panel {
    grid-template-columns: 1fr;
    gap: 52px;
  }

  .architecture-panel-copy {
    min-height: 330px;
  }
}

@media (max-width: 720px) {
  .case-header .contact-link {
    font-size: 10px;
  }

  .case-header .contact-link span {
    display: none;
  }

  .case-hero {
    padding-top: 130px;
    padding-bottom: 100px;
  }

  .case-hero h1 {
    margin: 70px 0 50px;
    font-size: clamp(54px, 16vw, 82px);
  }

  .case-intro > p {
    font-size: 20px;
  }

  .case-facts > div {
    grid-template-columns: 70px 1fr;
    gap: 16px;
  }

  .case-metrics {
    margin-top: 70px;
  }

  .case-metrics > div {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding: 24px 0 28px;
  }

  .case-metrics > div + div {
    padding-left: 16px;
  }

  .case-metrics strong {
    font-size: 50px;
  }

  .case-metrics span {
    font-size: 8px;
  }

  .visual-frame,
  .wide-technical-visual,
  .premiere-visual {
    padding: 7px;
  }

  .hero-visual figcaption,
  .premiere-visual figcaption {
    grid-template-columns: 1fr;
    gap: 7px;
    line-height: 1.6;
  }

  .case-section {
    padding-block: 96px;
  }

  .case-heading h2 {
    font-size: 46px;
  }

  .pipeline-grid,
  .extension-grid,
  .outcome-copy {
    grid-template-columns: 1fr;
  }

  .architecture-tab {
    flex-basis: min(76vw, 270px);
    min-height: 190px;
  }

  .architecture-tab strong {
    margin-top: 42px;
  }

  .architecture-panel {
    gap: 42px;
    padding: 30px 24px;
  }

  .architecture-panel-copy {
    min-height: 360px;
  }

  .architecture-panel h3 {
    font-size: 42px;
  }

  .architecture-panel-example,
  .packet-model,
  .frame-cycle,
  .output-paths {
    padding: 22px;
  }

  .event-example > div {
    grid-template-columns: 80px 1fr;
  }

  .packet-model,
  .output-paths {
    grid-template-columns: 1fr;
  }

  .packet-model > div,
  .output-paths li {
    min-height: 150px;
  }

  .log-example li {
    grid-template-columns: 100px 1fr;
    gap: 12px;
    padding-inline: 0;
  }

  .pipeline-card {
    min-height: 430px;
    padding: 28px 24px;
  }

  .pipeline-card h3 {
    margin-top: 68px;
    font-size: 58px;
  }

  .pipeline-card p {
    font-size: 16px;
  }

  .pipeline-card > strong {
    margin-top: 52px;
  }

  .wide-technical-visual img {
    min-height: 130px;
  }

  .extension-grid {
    border-left: 0;
  }

  .extension-card {
    min-height: 330px;
    padding: 28px 24px;
    border-left: 1px solid rgba(11, 13, 12, 0.18);
  }

  .extension-card h3 {
    margin-top: 72px;
  }

  .performance-card,
  .production-list {
    padding: 28px 24px;
  }

  .performance-card strong {
    margin-top: 60px;
    font-size: 72px;
  }

  .production-list a {
    grid-template-columns: 1fr auto;
  }

  .production-list small {
    display: none;
  }

  .case-contact {
    padding-top: 105px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .stepper-page .production-list i,
  .stepper-page .experience-cta span {
    transform: none !important;
  }
}