/* ═══════════════════════════════════════
   project.css — Project archive & detail
═══════════════════════════════════════ */

/* Filter Bar */
.project-filter-wrap {
  position: sticky;
  top: 64px;
  z-index: 90;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 0;
  box-shadow: 0 1px 0 var(--border);
}
.filter-tabs {
  display: flex;
  gap: 4px;
  padding: 12px 0;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.filter-tabs::-webkit-scrollbar { display: none; }
.filter-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--gray);
  white-space: nowrap;
  transition: var(--transition);
  border: 1.5px solid transparent;
}
.filter-tab:hover { color: var(--orange); }
.filter-tab.active {
  background: var(--orange);
  color: var(--white);
  border-color: var(--orange);
}
.filter-count {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 20px; height: 18px;
  background: rgba(0,0,0,0.1);
  border-radius: 100px;
  font-size: 0.68rem;
  padding: 0 5px;
}
.filter-tab.active .filter-count { background: rgba(255,255,255,0.3); color: var(--white); }

/* Project Grid */
.project-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  transition: opacity 0.3s ease;
}
.project-grid.loading { opacity: 0.5; pointer-events: none; }

/* Project Card */
.project-card { display: flex; flex-direction: column; }
.project-card-media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  aspect-ratio: 4/3;
  display: block;
  margin-bottom: 14px;
}
.project-card-media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.55s cubic-bezier(0.4, 0, 0.2, 1);
}
.project-card:hover .project-card-media img { transform: scale(1.08); }
.project-card-placeholder { width: 100%; height: 100%; background: linear-gradient(135deg, #ede8e3 0%, #d4ccc5 100%); }
.project-card-overlay {
  position: absolute; inset: 0;
  display: flex; align-items: flex-end; justify-content: flex-start;
  padding: 20px;
  background: linear-gradient(to top, rgba(15,15,15,0.7) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.35s ease;
}
.project-card:hover .project-card-overlay { opacity: 1; }
.project-card-cta {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.78rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--white);
}
.project-card-tag {
  position: absolute; top: 14px; left: 14px;
}
.project-card-title { font-size: 1rem; margin-bottom: 4px; }
.project-card-title a { transition: color var(--transition); }
.project-card-title a:hover { color: var(--orange); }
.project-card-meta {
  display: flex; align-items: center; gap: 6px;
  font-size: 0.78rem; color: var(--light-gray);
}

/* Load More */
.load-more-wrap { text-align: center; padding-top: 56px; }
.load-more-btn.loading { opacity: 0.6; pointer-events: none; }
.no-projects { text-align: center; padding: 80px 0; grid-column: 1/-1; }
.no-projects p { color: var(--gray); margin-bottom: 24px; }

/* ── Project Hero ── */
.project-hero {
  position: relative;
  height: 70vh;
  min-height: 500px;
  display: flex;
  align-items: flex-end;
  padding-bottom: 60px;
  overflow: hidden;
}
.project-hero-img { position: absolute; inset: 0; }
.project-hero-img img { width: 100%; height: 100%; object-fit: cover; }
.project-hero-content { position: relative; z-index: 2; }
.project-hero .tag { margin-bottom: 16px; }
.project-hero-title { color: var(--white); font-size: clamp(2rem, 4vw, 3.5rem); margin: 0; }

/* Project Detail */
.project-detail-grid {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 64px;
  align-items: start;
}
.project-detail-content h2 { margin-bottom: 20px; }
.project-excerpt { color: var(--gray); line-height: 1.9; font-size: 1.05rem; }
.project-meta-box {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 24px;
}
.meta-row {
  display: flex;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  gap: 16px;
  align-items: flex-start;
}
.meta-row:last-child { border-bottom: none; }
.meta-label { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--light-gray); min-width: 80px; padding-top: 2px; }
.meta-value { font-size: 0.875rem; color: var(--dark); display: flex; flex-wrap: wrap; gap: 6px; }
.project-share { display: flex; align-items: center; gap: 16px; }
.share-btns { display: flex; gap: 8px; }
.share-btn {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--border);
  color: var(--gray);
  transition: var(--transition);
}
.share-btn:hover { border-color: var(--orange); color: var(--orange); }

/* Video */
.project-video-section { padding: 0 0 80px; }
.video-wrapper {
  position: relative;
  aspect-ratio: 16/9;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--dark);
}
.video-wrapper iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: none; }

/* Project Gallery Grid */
.project-gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 260px;
  gap: 8px;
}
.project-gallery-item {
  display: block;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
}
.project-gallery-item.gallery-item-wide { grid-column: span 2; }
.project-gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.55s ease; }
.project-gallery-item:hover img { transform: scale(1.05); }
.project-gallery-item .gallery-item-overlay {
  position: absolute; inset: 0;
  background: rgba(15,15,15,0);
  display: flex; align-items: center; justify-content: center;
  transition: background 0.3s ease;
  color: var(--white);
}
.project-gallery-item:hover .gallery-item-overlay { background: rgba(15,15,15,0.4); }

/* Project Navigation */
.project-nav-section { padding: 56px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.project-nav { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.project-nav-item { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.project-nav-item.next { text-align: right; }
.nav-dir { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--light-gray); }
.nav-title { font-family: var(--font-display); font-size: 1rem; font-weight: 700; color: var(--dark); transition: color var(--transition); }
.project-nav-item:hover .nav-title { color: var(--orange); }
.project-nav-all {
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  border: 1.5px solid var(--border);
  border-radius: 50%;
  color: var(--gray);
  flex-shrink: 0;
  transition: var(--transition);
}
.project-nav-all:hover { border-color: var(--orange); color: var(--orange); }

@media (max-width: 1200px) { .project-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 1024px) {
  .project-grid { grid-template-columns: repeat(2, 1fr); }
  .project-detail-grid { grid-template-columns: 1fr; }
  .project-gallery-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .project-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .project-gallery-grid { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 180px; }
  .project-gallery-item.gallery-item-wide { grid-column: span 2; }
  .project-hero { height: 55vh; }
}
@media (max-width: 480px) {
  .project-grid { grid-template-columns: 1fr; }
}