:root {
  --project-accent: hsl(230, 69%, 61%);
  --project-accent-dark: hsl(230, 57%, 53%);
  --project-ink: hsl(230, 15%, 15%);
  --project-muted: hsl(230, 8%, 45%);
  --project-line: hsl(230, 24%, 91%);
  --project-soft: hsl(230, 60%, 98%);
  --project-surface: #fff;
  --project-success: #38a169;
  --project-radius: .75rem;
  --project-shadow: 0 18px 45px rgba(35, 44, 89, .08);
}

body.dark-theme {
  --project-ink: hsl(230, 8%, 95%);
  --project-muted: hsl(230, 8%, 72%);
  --project-line: hsl(230, 18%, 25%);
  --project-soft: hsl(230, 26%, 14%);
  --project-surface: hsl(230, 28%, 12%);
  --project-shadow: 0 18px 45px rgba(0, 0, 0, .2);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.selected-work {
  overflow: hidden;
}

.selected-work__intro {
  max-width: 44rem;
  margin: 0 auto 4rem;
  text-align: center;
}

.selected-work__intro .section__subtitle {
  margin: .65rem 0 0;
  line-height: 1.8;
}

.selected-work__list {
  max-width: 1100px;
  margin: 0 auto;
}

.selected-project {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(18rem, .85fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 5rem);
  padding: 3rem 0;
  border-top: 1px solid var(--project-line);
}

.selected-project:first-child {
  padding-top: 0;
  border-top: 0;
}

.selected-project:nth-child(even) .selected-project__media {
  order: 2;
}

.selected-project__content {
  position: relative;
}

.selected-project__number {
  display: block;
  margin-bottom: .8rem;
  color: var(--project-accent);
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .08em;
}

.selected-project__category,
.case-eyebrow,
.section-label {
  color: var(--project-accent);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .035em;
  text-transform: uppercase;
}

.selected-project h3 {
  margin: .35rem 0 .85rem;
  color: var(--project-ink);
  font-size: clamp(1.35rem, 2.4vw, 2rem);
  line-height: 1.2;
}

.selected-project__lead {
  max-width: 34rem;
  color: var(--project-muted);
  line-height: 1.75;
}

.project-status {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  margin: 1.25rem 0 1rem;
  color: var(--project-muted);
  font-size: .8rem;
  font-weight: 500;
}

.project-status span {
  width: .55rem;
  height: .55rem;
  border-radius: 50%;
  background: var(--project-accent);
}

.project-status--live span {
  background: var(--project-success);
  box-shadow: 0 0 0 4px rgba(56, 161, 105, .12);
}

.project-status--archived span {
  background: #9aa0b1;
}

.technology-list {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

.technology-list li {
  padding: .42rem .7rem;
  border: 1px solid transparent;
  border-radius: .35rem;
  background: var(--project-soft);
  color: var(--project-ink);
  font-size: .72rem;
  font-weight: 500;
}

.selected-project__actions,
.case-hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-top: 1.5rem;
}

.project-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  min-height: 2.8rem;
  font-size: .82rem;
  font-weight: 600;
  transition: transform .25s ease, color .25s ease, background-color .25s ease, border-color .25s ease;
}

.project-link:hover {
  transform: translateY(-2px);
}

.project-link:focus-visible,
.browser-frame:focus-visible,
.gallery-hint:focus-visible,
.case-theme:focus-visible,
.lightbox__close:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--project-accent), transparent 68%);
  outline-offset: 3px;
}

.project-link--primary {
  padding: .78rem 1rem;
  border-radius: .5rem;
  background: var(--project-accent);
  color: #fff;
}

.project-link--primary:hover {
  background: var(--project-accent-dark);
  color: #fff;
}

.project-link--text {
  color: var(--project-accent);
}

.project-link--outline {
  padding: .72rem 1rem;
  border: 1px solid var(--project-accent);
  border-radius: .5rem;
  color: var(--project-accent);
}

.browser-frame {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  padding: 1.55rem .35rem .35rem;
  border: 1px solid var(--project-line);
  border-radius: var(--project-radius);
  background: var(--project-surface);
  box-shadow: var(--project-shadow);
  cursor: zoom-in;
  transition: transform .3s ease, box-shadow .3s ease;
}

.browser-frame:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 55px rgba(35, 44, 89, .13);
}

.browser-frame img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: top;
  border-radius: .45rem;
}

.browser-frame__bar {
  position: absolute;
  top: .65rem;
  left: .75rem;
  display: flex;
  gap: .3rem;
}

.browser-frame__bar span {
  width: .42rem;
  height: .42rem;
  border-radius: 50%;
  background: #ff655d;
}

.browser-frame__bar span:nth-child(2) { background: #f6bd4f; }
.browser-frame__bar span:nth-child(3) { background: #59c26d; }

.browser-frame__expand {
  position: absolute;
  top: .45rem;
  right: .55rem;
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--project-surface);
  color: var(--project-accent);
  box-shadow: 0 6px 18px rgba(35, 44, 89, .12);
}

.selected-work__cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  max-width: 1100px;
  margin: 3rem auto 0;
  padding: 1.75rem 2rem;
  border: 1px solid var(--project-line);
  border-radius: var(--project-radius);
  background: var(--project-soft);
}

.selected-work__cta h3 {
  margin-bottom: .25rem;
  color: var(--project-ink);
}

.selected-work__cta p {
  color: var(--project-muted);
}

/* Case study shell */
.case-study-page {
  margin: 0;
  background: var(--project-surface);
  color: var(--project-muted);
}

.case-container {
  width: min(1120px, calc(100% - 3rem));
  margin-inline: auto;
}

.case-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid color-mix(in srgb, var(--project-line), transparent 25%);
  background: color-mix(in srgb, var(--project-surface), transparent 8%);
  backdrop-filter: blur(16px);
}

.case-header__inner {
  display: flex;
  align-items: center;
  min-height: 4.6rem;
  gap: 2rem;
}

.case-logo {
  color: var(--project-ink);
  font-weight: 600;
}

.case-back {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  color: var(--project-accent);
  font-size: .8rem;
  font-weight: 500;
}

.case-header__actions {
  display: flex;
  align-items: center;
  gap: .8rem;
  margin-left: auto;
}

.case-theme {
  display: grid;
  place-items: center;
  width: 2.8rem;
  height: 2.8rem;
  border: 1px solid var(--project-line);
  border-radius: 50%;
  background: var(--project-surface);
  color: var(--project-ink);
}

.case-section {
  padding: clamp(4rem, 8vw, 7rem) 0;
}

.case-hero {
  padding-top: clamp(3rem, 6vw, 5.5rem);
}

.case-hero__grid {
  display: grid;
  grid-template-columns: minmax(17rem, .78fr) minmax(0, 1.22fr);
  align-items: center;
  gap: clamp(2.5rem, 6vw, 5.5rem);
}

.case-hero h1 {
  margin: .65rem 0 .75rem;
  color: var(--project-ink);
  font-size: clamp(2.25rem, 5vw, 4.3rem);
  line-height: 1.05;
  letter-spacing: -.04em;
}

.case-hero__title {
  color: var(--project-ink);
  font-size: clamp(1rem, 1.8vw, 1.25rem);
  font-weight: 500;
  line-height: 1.55;
}

.case-hero__lead {
  max-width: 36rem;
  line-height: 1.8;
}

.case-hero__media img {
  aspect-ratio: 16 / 10;
}

.project-snapshot {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 4rem;
  padding: 1.5rem;
  border: 1px solid var(--project-line);
  border-radius: var(--project-radius);
}

.snapshot-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: .5rem 1.5rem;
  border-left: 1px solid var(--project-line);
}

.snapshot-item:first-child { border-left: 0; }

.snapshot-item > span {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 2.8rem;
  height: 2.8rem;
  border: 1px solid color-mix(in srgb, var(--project-accent), transparent 55%);
  border-radius: 50%;
  color: var(--project-accent);
  font-size: 1.2rem;
}

.snapshot-item strong { display: block; color: var(--project-ink); font-size: .85rem; }
.snapshot-item p { margin-top: .2rem; font-size: .75rem; line-height: 1.45; }

.case-narrative,
.case-gallery-section {
  background: var(--project-soft);
}

.narrative-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(2.5rem, 7vw, 7rem);
}

.case-study-page h2 {
  margin: .45rem 0 1.1rem;
  color: var(--project-ink);
  font-size: clamp(1.55rem, 3vw, 2.35rem);
  line-height: 1.2;
}

.case-study-page h3 { color: var(--project-ink); }

.narrative-grid p,
.solution-band p,
.case-section-heading p {
  margin-bottom: 1rem;
  line-height: 1.8;
}

.solution-band {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.25rem;
  margin-top: 3rem;
  padding: 2rem;
  border: 1px solid var(--project-line);
  border-radius: var(--project-radius);
  background: var(--project-surface);
}

.solution-band__icon {
  display: grid;
  place-items: center;
  width: 3.5rem;
  height: 3.5rem;
  border: 1px solid color-mix(in srgb, var(--project-accent), transparent 55%);
  border-radius: 50%;
  color: var(--project-accent);
  font-size: 1.4rem;
}

.capabilities-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(18rem, .9fr);
  align-items: start;
  gap: clamp(3rem, 7vw, 7rem);
}

.capability-list {
  margin-top: 2rem;
}

.capability-list li {
  display: grid;
  grid-template-columns: 2rem 1fr;
  gap: 1rem;
  padding: 1rem 0;
  border-top: 1px solid var(--project-line);
}

.capability-list li > span {
  color: var(--project-accent);
  font-size: .75rem;
  font-weight: 600;
}

.capability-list h3 { margin-bottom: .35rem; font-size: .95rem; }
.capability-list p { font-size: .84rem; line-height: 1.65; }

.module-panel {
  position: sticky;
  top: 7rem;
  padding: 2rem;
  border: 1px solid var(--project-line);
  border-radius: var(--project-radius);
  background: var(--project-soft);
}

.module-panel ul {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: .75rem;
}

.module-panel li {
  display: flex;
  align-items: center;
  gap: .6rem;
  min-height: 2.7rem;
  color: var(--project-ink);
  font-size: .78rem;
}

.module-panel i { color: var(--project-accent); font-size: 1.05rem; }

.case-section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.case-section-heading p { max-width: 38rem; }

.gallery-hint {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  flex: 0 0 auto;
  padding: .65rem .8rem;
  border: 1px solid var(--project-line);
  border-radius: .5rem;
  background: var(--project-surface);
  color: var(--project-accent);
  font-family: inherit;
}

.interface-gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}

.interface-gallery__item--wide {
  grid-column: 1 / -1;
}

.interface-gallery__item--wide .browser-frame img {
  aspect-ratio: 16 / 8.8;
}

.interface-gallery figcaption {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: .9rem .2rem 0;
}

.interface-gallery figcaption strong { color: var(--project-ink); font-size: .85rem; }
.interface-gallery figcaption span { max-width: 25rem; font-size: .72rem; text-align: right; }

.business-value-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 2.5rem;
  border-block: 1px solid var(--project-line);
}

.business-value-list article {
  display: flex;
  gap: .75rem;
  padding: 1.75rem 1.25rem;
  border-left: 1px solid var(--project-line);
}

.business-value-list article:first-child { border-left: 0; }
.business-value-list i { flex: 0 0 auto; color: var(--project-accent); font-size: 1.15rem; }
.business-value-list h3 { margin-bottom: .45rem; font-size: .9rem; }
.business-value-list p { font-size: .75rem; line-height: 1.55; }

.delivery-grid {
  display: grid;
  grid-template-columns: minmax(15rem, .75fr) minmax(0, 1.25fr);
  gap: clamp(3rem, 7vw, 7rem);
}

.technology-list--large { margin-top: 2rem; }
.technology-list--large li { padding: .65rem .9rem; }

.role-list {
  margin-top: 2rem;
}

.role-list li {
  display: flex;
  gap: .7rem;
  margin-bottom: .85rem;
  color: var(--project-ink);
  font-size: .84rem;
}

.role-list i { color: var(--project-accent); }

.project-pagination {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  padding: 2.5rem 0 4rem;
  border-top: 1px solid var(--project-line);
}

.project-pagination a {
  display: flex;
  align-items: center;
  gap: .8rem;
  color: var(--project-ink);
  font-size: .82rem;
  font-weight: 500;
}

.project-pagination a:hover { color: var(--project-accent); }
.project-pagination small { display: block; margin-bottom: .2rem; color: var(--project-muted); font-size: .66rem; font-weight: 400; }
.project-pagination__all { padding: .75rem 1rem; border: 1px solid var(--project-line); border-radius: .5rem; }
.project-pagination__next { justify-content: flex-end; text-align: right; }

.lightbox[hidden] { display: none; }
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: grid;
  place-items: center;
  padding: 3rem;
  background: rgba(10, 13, 25, .88);
  backdrop-filter: blur(8px);
}

.lightbox img {
  max-width: min(1320px, 94vw);
  max-height: 88vh;
  border-radius: .65rem;
  box-shadow: 0 35px 80px rgba(0, 0, 0, .4);
}

.lightbox__close {
  position: fixed;
  top: 1.25rem;
  right: 1.25rem;
  display: grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background: #fff;
  color: #171a27;
  font-size: 1.35rem;
}

.lightbox-open { overflow: hidden; }

@media screen and (max-width: 900px) {
  .selected-project,
  .case-hero__grid,
  .capabilities-layout,
  .delivery-grid {
    grid-template-columns: 1fr;
  }

  .selected-project:nth-child(even) .selected-project__media { order: 0; }
  .project-snapshot { grid-template-columns: 1fr; }
  .snapshot-item { border-left: 0; border-top: 1px solid var(--project-line); }
  .snapshot-item:first-child { border-top: 0; }
  .module-panel { position: static; }
  .business-value-list { grid-template-columns: repeat(2, 1fr); }
  .business-value-list article:nth-child(3) { border-left: 0; }
  .business-value-list article:nth-child(n+3) { border-top: 1px solid var(--project-line); }
}

@media screen and (max-width: 640px) {
  .case-container { width: min(100% - 2rem, 1120px); }
  .case-header__inner { min-height: 4rem; gap: .75rem; }
  .case-header .project-link--primary { display: none; }
  .case-back span { display: none; }
  .case-section { padding: 3.5rem 0; }
  .selected-work__intro { margin-bottom: 2.5rem; }
  .selected-project { gap: 1.5rem; padding: 2.5rem 0; }
  .selected-project__actions { align-items: stretch; }
  .selected-project__actions .project-link { flex: 1 1 auto; }
  .selected-work__cta { align-items: flex-start; flex-direction: column; padding: 1.5rem; }
  .narrative-grid,
  .interface-gallery,
  .business-value-list {
    grid-template-columns: 1fr;
  }
  .solution-band { grid-template-columns: 1fr; padding: 1.5rem; }
  .module-panel { padding: 1.5rem; }
  .module-panel ul { grid-template-columns: 1fr 1fr; }
  .case-section-heading { align-items: flex-start; flex-direction: column; }
  .interface-gallery__item--wide { grid-column: auto; }
  .interface-gallery figcaption { align-items: flex-start; flex-direction: column; }
  .interface-gallery figcaption span { text-align: left; }
  .business-value-list article,
  .business-value-list article:nth-child(3) { border-left: 0; border-top: 1px solid var(--project-line); }
  .business-value-list article:first-child { border-top: 0; }
  .project-pagination { grid-template-columns: 1fr 1fr; }
  .project-pagination__all { grid-column: 1 / -1; grid-row: 1; justify-self: center; }
  .lightbox { padding: 1rem; }
}

@media (prefers-reduced-motion: reduce) {
  .project-link,
  .browser-frame { transition: none; }
}