/* ===== GALLERY PAGE — Extends base design system from styles.css ===== */
/* Page-nav styles are in styles.css (shared with index.html) */

/* ---------- Gallery hero ---------- */
.gallery-hero {
  max-width: 1440px;
  margin: 0 auto;
  padding: var(--space-3xl) 24px var(--space-xl);
}
.gallery-hero h1 {
  font-size: 34px;
  font-weight: 700;
  letter-spacing: -0.028em;
  line-height: 1.1;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}
.gallery-hero p {
  font-size: 15px;
  font-weight: 400;
  line-height: 1.6;
  color: var(--text-secondary);
  max-width: 520px;
}

/* ---------- Filter bar ---------- */
.gallery-filter {
  position: sticky;
  top: 52px;
  z-index: 95;
  background: rgba(26, 38, 52, 0.95);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  padding: 10px 0 14px;
}
.gallery-filter-scroll {
  display: flex;
  gap: 8px;
  padding: 0 24px;
  max-width: 1440px;
  margin: 0 auto;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.gallery-filter-scroll::-webkit-scrollbar { display: none; }

.gallery-filter-btn {
  flex-shrink: 0;
  padding: 7px 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 980px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: -0.01em;
  cursor: pointer;
  transition: all var(--duration-base) var(--ease-out);
  white-space: nowrap;
}
.gallery-filter-btn:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.18);
  color: var(--text-primary);
}
.gallery-filter-btn.active {
  background: var(--orange);
  border-color: var(--orange);
  color: #fff;
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(232, 131, 58, 0.35);
}
.gallery-filter-btn:active {
  transform: scale(0.96);
}

/* ---------- Gallery count ---------- */
.gallery-count {
  max-width: 1440px;
  margin: 0 auto;
  padding: var(--space-md) 24px var(--space-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-tertiary);
}
.gallery-count span {
  font-weight: 700;
  color: var(--orange);
}

/* ---------- Gallery grid — editorial layout ---------- */
.gallery-grid {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 24px var(--space-3xl);
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

/* ---------- Gallery card ---------- */
.gallery-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--navy-surface);
  border: 1px solid rgba(255, 255, 255, 0.04);
  cursor: pointer;
  transition: transform var(--duration-slow) var(--ease-out),
              box-shadow var(--duration-slow),
              border-color var(--duration-slow);
}
.gallery-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(232, 131, 58, 0.12);
}

.gallery-card-image {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--navy-dark);
}
.gallery-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}
.gallery-card:hover .gallery-card-image img {
  transform: scale(1.03);
}

/* Placeholder state (before real images are added) */
.gallery-card-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy-surface) 100%);
  color: var(--text-tertiary);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.gallery-card-placeholder svg {
  width: 36px;
  height: 36px;
  opacity: 0.2;
  margin-bottom: 8px;
}

.gallery-card-info {
  padding: 14px 18px 16px;
}
.gallery-card-category {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 4px;
}
.gallery-card-title {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.022em;
  color: var(--text-primary);
  line-height: 1.25;
}
.gallery-card-app {
  font-size: 12px;
  font-weight: 400;
  color: var(--text-tertiary);
  margin-top: 2px;
}

/* Featured cards — span 2 columns on larger screens */
.gallery-card.featured .gallery-card-image {
  aspect-ratio: 16 / 9;
}

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-base) var(--ease-out),
              visibility var(--duration-base);
}
.lightbox.open {
  opacity: 1;
  visibility: visible;
}
.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
.lightbox-content {
  position: relative;
  max-width: 90vw;
  max-height: 85vh;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  transform: scale(0.95) translateY(12px);
  transition: transform 0.35s var(--ease-out);
  background: var(--navy-surface);
}
.lightbox.open .lightbox-content {
  transform: scale(1) translateY(0);
}
.lightbox-image {
  display: block;
  max-width: 90vw;
  max-height: 75vh;
  object-fit: contain;
  background: var(--navy-dark);
}
.lightbox-placeholder {
  width: 70vw;
  max-width: 800px;
  aspect-ratio: 16 / 9;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--navy-dark), var(--navy-surface));
  color: var(--text-tertiary);
  font-size: 14px;
  gap: 8px;
}
.lightbox-caption {
  padding: 16px 20px;
  background: var(--navy-surface);
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}
.lightbox-caption-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.022em;
}
.lightbox-caption-meta {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-top: 2px;
}
.lightbox-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.5);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--duration-base) var(--ease-out);
  z-index: 2;
}
.lightbox-close:hover {
  background: var(--orange);
  border-color: var(--orange);
}
.lightbox-close:active {
  transform: scale(0.92);
}
.lightbox-close svg {
  width: 16px;
  height: 16px;
}

/* Lightbox nav arrows */
.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.4);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--duration-base) var(--ease-out);
  z-index: 2;
}
.lightbox-nav:hover {
  background: rgba(0, 0, 0, 0.6);
  border-color: rgba(255, 255, 255, 0.2);
}
.lightbox-nav.prev { left: 12px; }
.lightbox-nav.next { right: 12px; }
.lightbox-nav svg { width: 18px; height: 18px; }

/* ---------- Empty state ---------- */
.gallery-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--space-3xl) var(--space-lg);
}
.gallery-empty h3 {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.022em;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}
.gallery-empty p {
  font-size: 15px;
  color: var(--text-secondary);
}

/* ---------- Responsive ---------- */

/* Tablet: 2 columns */
@media (min-width: 580px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }
  .gallery-card.featured {
    grid-column: span 2;
  }
}

/* Desktop: 3 columns */
@media (min-width: 960px) {
  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
}

/* Large desktop: keep 3 cols but wider */
@media (min-width: 1300px) {
  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
  }
}

/* Mobile adjustments */
@media (max-width: 600px) {
  .gallery-hero {
    padding: var(--space-2xl) 16px var(--space-lg);
  }
  .gallery-hero h1 {
    font-size: 28px;
  }
  .gallery-hero p {
    font-size: 14px;
  }
  .gallery-filter-scroll {
    padding: 0 16px;
  }
  .gallery-filter-btn {
    font-size: 12px;
    padding: 6px 14px;
  }
  .gallery-count {
    padding: var(--space-sm) 16px;
  }
  .gallery-grid {
    padding: 0 12px var(--space-2xl);
  }
  .gallery-card-info {
    padding: 12px 14px 14px;
  }
  .gallery-card-title {
    font-size: 15px;
  }

  /* Page nav on mobile */
  .page-nav a {
    font-size: 11px;
    padding: 4px 10px;
  }

  .lightbox-nav { display: none; }
}

/* Touch devices */
@media (hover: none) {
  .gallery-card {
    transition: none;
  }
  .gallery-card:active {
    transform: scale(0.98);
    transition: transform 100ms ease;
  }
  .gallery-card:hover {
    transform: none;
    box-shadow: none;
    border-color: rgba(255, 255, 255, 0.04);
  }
  .gallery-card:hover .gallery-card-image img {
    transform: none;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .gallery-card,
  .gallery-card-image img,
  .lightbox,
  .lightbox-content {
    transition-duration: 0.01ms !important;
  }
}

/* Card fade-in animation */
@keyframes galleryFadeIn {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
.gallery-card {
  animation: galleryFadeIn 0.5s var(--ease-out) both;
}