/* ============================================
   SIHIA AFRICA LTD — PROJECTS PAGE CSS v2
   Blue × Gold × White Premium Design
   ============================================ */

/* Hero Collage */
.projects-hero {
  position: relative;
  height: 60vh;
  min-height: 480px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.projects-hero-collage {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 4px;
  z-index: 0;
}

.projects-hero-collage img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.3) saturate(0.5);
}

.projects-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(30,58,138,0.85) 0%, rgba(15,23,42,0.6) 60%, rgba(217,119,6,0.1) 100%);
  z-index: 1;
}

.projects-hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
}

/* Filter Tabs */
.projects-filters {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.filter-btn {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--grey);
  padding: 0.5rem 1.2rem;
  border: 1px solid var(--border);
  border-radius: 40px;
  background: #FFFFFF;
  cursor: none;
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  color: var(--blue);
  border-color: var(--border-blue);
  background: var(--blue-pale);
}

.filter-btn.active {
  color: #FFFFFF;
  background: var(--blue);
  border-color: var(--blue);
  box-shadow: 0 2px 8px rgba(29,78,216,0.25);
}

/* Projects Masonry Grid */
.projects-masonry {
  columns: 3;
  column-gap: var(--space-sm);
}

.project-masonry-item {
  break-inside: avoid;
  margin-bottom: var(--space-sm);
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: none;
}

.project-masonry-item img {
  width: 100%;
  display: block;
  filter: brightness(0.5);
  transition: filter 0.5s ease, transform 0.5s ease;
}

.project-masonry-item:hover img {
  filter: brightness(0.65);
  transform: scale(1.03);
}

.project-masonry-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-md);
  background: linear-gradient(to top, rgba(15,23,42,0.95) 0%, rgba(30,58,138,0.4) 60%, transparent 100%);
  transform: translateY(60px);
  transition: transform var(--transition-med);
}

.project-masonry-item:hover .project-masonry-overlay {
  transform: translateY(0);
}

.project-cat-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  color: var(--blue-light);
  text-transform: uppercase;
  margin-bottom: 0.3rem;
  display: block;
}

.project-masonry-overlay h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: #FFFFFF;
  margin-bottom: 0.3rem;
}

.project-masonry-overlay p {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.75);
  margin-bottom: 0.75rem;
}

/* Project Detail Modal */
.project-modal-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.project-modal-gallery {
  position: relative;
  height: 400px;
  overflow: hidden;
}

.project-modal-gallery img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-modal-thumbs {
  display: flex;
  gap: 0.5rem;
  padding: 0.75rem;
  background: var(--light);
}

.project-modal-thumbs img {
  width: 60px;
  height: 60px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: none;
  transition: border-color var(--transition-fast);
}

.project-modal-thumbs img.active,
.project-modal-thumbs img:hover {
  border-color: var(--blue);
}

.project-modal-info {
  padding: var(--space-md);
  overflow-y: auto;
}

.project-modal-info h2 {
  font-family: var(--font-display);
  font-size: 2.5rem;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.project-section-title {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--blue);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  margin-top: 1.5rem;
  display: block;
}

.project-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

/* CTA */
.projects-cta {
  text-align: center;
  padding: var(--space-xl) 0;
  background: var(--blue-dark);
  position: relative;
  overflow: hidden;
}

.projects-cta::before {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(29,78,216,0.3) 0%, transparent 70%);
  top: -200px;
  right: -100px;
  pointer-events: none;
}

.projects-cta h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  color: #FFFFFF;
  margin-bottom: 1.5rem;
}

.projects-cta h2 span { color: var(--gold-light); }

@media (max-width: 1199px) {
  .projects-masonry { columns: 2; }
}

@media (max-width: 899px) {
  .projects-masonry { columns: 1; }
  .project-modal-inner { grid-template-columns: 1fr; }
  .project-modal-gallery { height: 280px; }
}

@media (max-width: 640px) {
  .projects-hero-collage { grid-template-columns: 1fr; }
}