/* ── Project page ── */

.project-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 40px;
  background: var(--bg-nav);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s;
}

.project-nav.scrolled {
  border-color: rgba(26,26,26,0.08);
}

.project-nav-back {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Instrument Sans', sans-serif;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--ink-mid);
  text-decoration: none;
  transition: color 0.2s;
  letter-spacing: 0.02em;
}

.project-nav-back:hover { color: var(--ink); }

.project-nav-back svg {
  transition: transform 0.2s;
}

.project-nav-back:hover svg {
  transform: translateX(-3px);
}

.project-nav-logo img {
  width: 36px;
  height: 36px;
  object-fit: contain;
}

/* ── Header ── */
.project-header {
  padding: 140px 40px 72px;
  max-width: 860px;
  margin: 0 auto;
}

.project-category {
  font-family: 'Bitroad', monospace;
  font-style: italic;
  font-weight: 400;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: var(--coral);
  margin-bottom: 16px;
  display: block;
}

.project-title {
  font-family: 'Instrument Serif', Georgia, serif;
  font-weight: 400;
  font-size: clamp(2.8rem, 6vw, 5rem);
  line-height: 1.1;
  color: var(--ink);
  margin-bottom: 32px;
}

.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
  margin-bottom: 32px;
}

.project-meta-item {
  flex: 1;
  min-width: 160px;
  padding: 0 24px 0 0;
}

.project-meta-item:first-child { padding-left: 0; }

.project-meta-label {
  font-family: 'Bitroad', monospace;
  font-style: italic;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--ink-light);
  display: block;
  margin-bottom: 4px;
}

.project-meta-value {
  font-family: 'Instrument Sans', sans-serif;
  font-size: 0.85rem;
  color: var(--ink);
  line-height: 1.5;
}

.tool-icons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.tool-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  font-family: 'Instrument Sans', sans-serif;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  flex-shrink: 0;
}

.tool-icon-logo {
  background: transparent !important;
  padding: 0;
  overflow: visible;
}

.tool-icon-logo img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  object-fit: contain;
  display: block;
}

.tool-tag {
  display: inline-flex;
  align-items: center;
  height: 36px;
  padding: 0 10px;
  border-radius: 8px;
  background: var(--bg-elevated);
  font-family: 'Instrument Sans', sans-serif;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--ink-mid);
}

.project-brief {
  font-family: 'Instrument Sans', sans-serif;
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--ink-mid);
  max-width: 680px;
}

/* ── Content ── */
.project-content {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 40px 120px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.project-img-full img {
  width: 100%;
  display: block;
  border-radius: 4px;
}

.project-img-grid {
  display: grid;
  gap: 12px;
}

.project-img-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.project-img-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }

.project-img-grid img {
  width: 100%;
  display: block;
  border-radius: 4px;
}

.project-video {
  width: 100%;
}

.project-video-label {
  font-family: 'Bitroad', monospace;
  font-style: italic;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: var(--ink-mid);
  margin-bottom: 8px;
  display: block;
}

.project-video video {
  width: 100%;
  display: block;
  border-radius: 4px;
  background: #000;
}

.campaign-header {
  padding: 48px 0 4px;
  border-top: 1px solid var(--border);
  margin-top: 40px;
}

.campaign-header h3 {
  font-family: 'Instrument Serif', Georgia, serif;
  font-weight: 400;
  font-size: 1.5rem;
  color: var(--ink);
}

/* ── Campaign index ── */
.campaign-index {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding: 8px 0;
}

.campaign-index-card {
  display: block;
  text-decoration: none;
  border-radius: 8px;
  overflow: hidden;
  background: var(--bg-elevated);
  transition: transform 0.2s, box-shadow 0.2s;
}

.campaign-index-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(26,26,26,0.12);
}

.campaign-index-thumb {
  aspect-ratio: 4/3;
  overflow: hidden;
}

.campaign-index-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.35s ease;
}

.campaign-index-card:hover .campaign-index-thumb img {
  transform: scale(1.04);
}

.campaign-index-meta {
  padding: 14px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.campaign-index-year {
  font-family: 'Bitroad', monospace;
  font-style: italic;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--ink-light);
}

.campaign-index-title {
  font-family: 'Instrument Serif', Georgia, serif;
  font-size: 1.05rem;
  color: var(--ink);
}

.project-parent-back {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: 'Instrument Sans', sans-serif;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--ink-mid);
  text-decoration: none;
  transition: color 0.2s;
  letter-spacing: 0.02em;
}

.project-parent-back:hover { color: var(--coral); }

@media (max-width: 768px) {
  .campaign-index { grid-template-columns: repeat(2, 1fr); gap: 12px; }
}

@media (max-width: 480px) {
  .campaign-index { grid-template-columns: 1fr; }
}

/* ── Next project ── */
.project-next {
  border-top: 1px solid var(--border);
  padding: 60px 40px;
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.project-next-label {
  font-family: 'Bitroad', monospace;
  font-style: italic;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: var(--ink-light);
  display: block;
  margin-bottom: 8px;
}

.project-next-link {
  font-family: 'Instrument Serif', Georgia, serif;
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 400;
  color: var(--ink);
  text-decoration: none;
  transition: color 0.2s;
}

.project-next-link:hover { color: var(--coral); }

.project-next-arrow {
  font-size: 2rem;
  color: var(--ink-light);
  transition: transform 0.2s, color 0.2s;
}

.project-next-link:hover ~ .project-next-arrow,
.project-next:hover .project-next-arrow {
  transform: translateX(6px);
  color: var(--coral);
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .project-nav { padding: 16px 24px; }
  .project-header { padding: 110px 24px 48px; }
  .project-content { padding: 0 24px 80px; gap: 8px; }
  .project-img-grid.cols-3 { grid-template-columns: repeat(2, 1fr); }
  .project-meta { flex-direction: column; gap: 16px; }
  .project-meta-item { min-width: unset; padding: 0; }
  .project-next { padding: 48px 24px; flex-direction: column; align-items: flex-start; gap: 12px; }
}

@media (max-width: 480px) {
  .project-img-grid.cols-2,
  .project-img-grid.cols-3 { grid-template-columns: 1fr; }
}