.project-page {
  --signal: #75c8b8;
}

.project-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(36, 5, 5, 0.96);
  border-bottom: 1px solid var(--line);
}

.project-nav__inner {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.project-nav__back {
  color: var(--cream-dim);
  font-weight: 600;
}

.project-nav__back:hover { color: var(--gold-soft); }

.project-nav .btn { padding: 9px 18px; }

.project-hero {
  position: relative;
  min-height: min(74vh, 680px);
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  isolation: isolate;
}

.project-hero__image,
.project-hero__shade {
  position: absolute;
  inset: 0;
}

.project-hero__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 34%;
  z-index: -2;
}

.project-hero__shade {
  background: rgba(30, 4, 4, 0.72);
  z-index: -1;
}

.project-hero__content {
  padding-block: 80px 64px;
  max-width: 940px;
}

.project-hero__eyebrow {
  color: var(--signal);
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
}

.project-hero h1 {
  max-width: 900px;
  margin-top: 12px;
  font-family: var(--font-display);
  font-size: 4rem;
  line-height: 1.02;
}

.project-hero__summary {
  max-width: 680px;
  margin-top: 20px;
  color: var(--cream-dim);
  font-size: 1.12rem;
}

.project-hero__actions,
.project-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.project-hero__actions { margin-top: 28px; }

.project-hero--driving .project-hero__image {
  object-position: center;
}

.project-section {
  padding-block: 88px;
  border-bottom: 1px solid var(--line);
}

.project-section--overview { border-bottom: 0; }

.project-section__head {
  max-width: 720px;
  margin-bottom: 42px;
}

.project-section__label {
  color: var(--signal);
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
}

.project-section h2 {
  margin-top: 7px;
  font-family: var(--font-display);
  font-size: 2.3rem;
  line-height: 1.15;
}

.project-section__intro {
  margin-top: 14px;
  color: var(--cream-dim);
  font-size: 1.04rem;
}

.project-intro {
  max-width: 820px;
}

.project-intro h2 {
  margin-top: 0;
}

.project-intro p + p { margin-top: 18px; }
.project-intro p { color: var(--cream-dim); }

.project-subsection h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
}

.research-metrics {
  padding-block: 42px;
  border-bottom: 1px solid var(--line);
  background: rgba(36, 5, 5, 0.58);
}

.research-metrics__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.research-metric {
  min-width: 0;
  padding: 12px 24px;
  border-left: 1px solid var(--line-strong);
}

.research-metric:last-child { border-right: 1px solid var(--line-strong); }

.research-metric strong {
  display: block;
  color: var(--signal);
  font-family: var(--font-display);
  font-size: 2.25rem;
  line-height: 1;
}

.research-metric span {
  display: block;
  margin-top: 10px;
  color: var(--cream-dim);
  font-size: 0.86rem;
}

.project-split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: start;
}

.project-subsection p {
  margin-top: 14px;
  color: var(--cream-dim);
}

.feature-list {
  margin-top: 24px;
  display: grid;
  gap: 12px;
}

.feature-list li {
  position: relative;
  padding-left: 18px;
  color: var(--cream-dim);
}

.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--signal);
}

.parts-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
}

.parts-list li {
  min-width: 0;
  padding: 17px 16px 17px 0;
  border-bottom: 1px solid var(--line);
  color: var(--cream-dim);
}

.parts-list li:nth-child(even) { padding-left: 16px; }
.parts-list strong { display: block; color: var(--cream); }

.project-media-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.project-media-grid--three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.project-media-grid--spaced { margin-top: 20px; }

.project-media-grid--center-last > :last-child {
  grid-column: 1 / -1;
  width: calc((100% - 20px) / 2);
  justify-self: center;
}

.project-media {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: #120303;
}

.project-media a {
  display: block;
  overflow: hidden;
  background: #ffffff;
}

.project-media img {
  width: 100%;
  height: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  transition: transform 0.3s ease;
}

.project-media a:hover img { transform: scale(1.02); }

.project-media figcaption {
  min-height: 66px;
  padding: 14px 16px;
  color: var(--cream-dim);
  font-size: 0.88rem;
}

.project-media--portrait img { aspect-ratio: 4 / 5; object-fit: cover; }
.project-video {
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: #000000;
}

.project-video video {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000000;
}

.project-video figcaption {
  padding: 15px 18px;
  color: var(--cream-dim);
  font-size: 0.9rem;
  background: var(--maroon-900);
}

.contribution-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 48px;
}

.contribution-grid section {
  padding-top: 22px;
  border-top: 3px solid var(--signal);
}

.contribution-grid section:last-child { border-top-color: var(--gold); }
.contribution-grid h3 { font-family: var(--font-display); }
.contribution-grid p { margin-top: 12px; color: var(--cream-dim); }

.project-cta {
  text-align: center;
  padding-block: 88px;
}

.project-cta h2 {
  font-family: var(--font-display);
  font-size: 2.15rem;
}

.project-cta p {
  max-width: 580px;
  margin: 14px auto 28px;
  color: var(--cream-dim);
}

.project-cta__actions { justify-content: center; }

@media (max-width: 820px) {
  .project-hero h1 { font-size: 3.15rem; }
  .project-split { grid-template-columns: 1fr; gap: 38px; }
  .project-media-grid--three { grid-template-columns: 1fr 1fr; }
  .research-metrics__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .research-metric:nth-child(-n + 2) { margin-bottom: 24px; }
}

@media (max-width: 560px) {
  .project-nav__inner { min-height: 60px; }
  .project-nav .btn { padding: 8px 12px; }
  .project-hero { min-height: 66vh; }
  .project-hero__content { padding-block: 68px 44px; }
  .project-hero h1 { font-size: 2.45rem; }
  .project-hero__summary { font-size: 1rem; }
  .project-section { padding-block: 64px; }
  .project-section h2 { font-size: 1.85rem; }
  .parts-list,
  .project-media-grid,
  .project-media-grid--three,
  .contribution-grid { grid-template-columns: 1fr; }
  .research-metrics__grid { grid-template-columns: 1fr; }
  .research-metric,
  .research-metric:last-child {
    padding: 20px 0;
    border-right: 0;
    border-left: 0;
    border-bottom: 1px solid var(--line);
  }
  .research-metric:nth-child(-n + 2) { margin-bottom: 0; }
  .parts-list li:nth-child(even) { padding-left: 0; }
  .project-media figcaption { min-height: 0; }
  .project-media-grid--center-last > :last-child { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  .project-media img { transition: none; }
}