/* ============================================================
   HaggardTech Solutions — Projects Gallery CSS
   ============================================================ */

.projects {
  background: var(--color-white);
}

/* ── Filter Tabs ── */
.gallery-filters {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-2xl);
}

.filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 22px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
  background: var(--color-surface);
  border: 1px solid rgba(11,31,75,0.10);
  transition: all var(--transition-base);
  cursor: pointer;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--color-navy);
  color: var(--color-white);
  border-color: var(--color-navy);
  box-shadow: var(--shadow-md);
}

.filter-btn.active {
  background: var(--grad-navy);
}

/* ── Gallery Grid ── */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

/* ── Gallery Item ── */
.gallery-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 4/3;
  background: var(--color-navy-dark);
  transition: all var(--transition-spring);
}

.gallery-item:nth-child(1) { grid-column: span 2; aspect-ratio: 16/9; }
.gallery-item:nth-child(4) { grid-column: span 2; aspect-ratio: 16/9; }

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.gallery-item:hover img {
  transform: scale(1.08);
}

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(6,15,38,0.95) 0%, rgba(6,15,38,0.30) 50%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-lg);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-cat {
  display: inline-block;
  padding: 4px 10px;
  background: var(--grad-gold);
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--color-navy-dark);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.gallery-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 4px;
}

.gallery-location {
  font-size: 0.80rem;
  color: rgba(255,255,255,0.65);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ── Always-visible gradient bottom ── */
.gallery-item .gallery-tag-fixed {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  padding: 4px 12px;
  background: rgba(6,15,38,0.75);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 600;
  color: rgba(255,255,255,0.85);
  z-index: 2;
}

.gallery-zoom {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(8px);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--color-white);
  opacity: 0;
  transform: scale(0.8);
  transition: all var(--transition-spring);
  z-index: 2;
}

.gallery-item:hover .gallery-zoom {
  opacity: 1;
  transform: scale(1);
}

.gallery-item:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
}

/* ── Hidden items (for filter) ── */
.gallery-item.hidden {
  display: none;
}

/* ── Lightbox ── */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0,0,0,0.92);
  backdrop-filter: blur(12px);
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
}

.lightbox.open {
  display: flex;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.lightbox-content {
  max-width: 900px;
  width: 100%;
  position: relative;
}

.lightbox img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
}

.lightbox-close {
  position: absolute;
  top: -48px;
  right: 0;
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.20);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: 1.1rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.lightbox-close:hover {
  background: rgba(255,255,255,0.25);
}

.lightbox-caption {
  text-align: center;
  margin-top: var(--space-md);
  color: rgba(255,255,255,0.70);
  font-size: 0.90rem;
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-item:nth-child(1),
  .gallery-item:nth-child(4) { grid-column: span 1; aspect-ratio: 4/3; }
}

@media (max-width: 560px) {
  .gallery-grid { grid-template-columns: 1fr; }
}