.filters {
  display: flex;
  gap: 0.8em;
  margin-bottom: 2.6em;
  flex-wrap: wrap;
}
.filter-btn {
  padding: 0.6em 1.3em;
  border: 1px solid var(--accent-line-soft);
  background: transparent;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  cursor: pointer;
  transition: all 0.25s var(--ease);
}
.filter-btn:hover {
  border-color: var(--accent);
  color: var(--ink);
}
.filter-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
  box-shadow: 0 6px 16px var(--accent-glow);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2em;
}
.project-card {
  display: none;
  min-width: 0;
}
.project-card.show {
  display: block;
  animation: fade-in 0.5s ease;
}
.project-card .ph-image {
  aspect-ratio: 4 / 3;
  margin-bottom: 0.9em;
  cursor: zoom-in;
  transition:
    transform 0.5s var(--ease),
    box-shadow 0.5s var(--ease),
    border-color 0.5s var(--ease);
}
.project-card:hover .ph-image {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 18px 36px var(--accent-glow);
}
.project-card .ph-image img {
  filter: saturate(0.92) contrast(1.06) brightness(1.01);
  transition:
    transform 0.6s var(--ease),
    filter 0.5s var(--ease);
}
.project-card:hover .ph-image img {
  transform: scale(1.05);
}
.project-card .ph-image::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  background: linear-gradient(
    165deg,
    rgba(15, 83, 158, 0.12),
    rgba(32, 29, 24, 0.04) 45%,
    rgba(32, 29, 24, 0.26)
  );
  mix-blend-mode: multiply;
  opacity: 0.55;
  pointer-events: none;
  transition: opacity 0.5s var(--ease);
}
.project-card:hover .ph-image::before {
  opacity: 0.28;
}
.ph-image-zoom {
  position: absolute;
  z-index: 3;
  right: 0.7em;
  bottom: 0.7em;
  width: 2.3em;
  height: 2.3em;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(247, 244, 238, 0.92);
  color: var(--ink);
  opacity: 0;
  transform: translateY(6px);
  transition:
    opacity 0.35s var(--ease),
    transform 0.35s var(--ease);
}
.ph-image-zoom svg {
  width: 1.1em;
  height: 1.1em;
}
.project-card:hover .ph-image-zoom {
  opacity: 1;
  transform: translateY(0);
}
.project-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
}
.projects-intro {
  display: grid;
  grid-template-columns: 1fr 460px;
  gap: 2.4em;
  align-items: start;
  margin-bottom: 2.6em;
}
.projects-intro-text {
  display: flex;
  flex-direction: column;
  gap: 1.6em;
}
.projects-intro .section-head {
  margin-bottom: 0;
}
.projects-intro-text .filters {
  margin-bottom: 0;
}
.projects-intro .project-video {
  margin-top: 0.4em;
}
.project-video {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--accent-line-soft);
  box-shadow:
    0 20px 40px rgba(32, 29, 24, 0.08),
    0 2px 8px rgba(32, 29, 24, 0.04);
}
.project-video video {
  display: block;
  width: 100%;
  background: #000;
}
.video-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  border: none;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 12px 32px rgba(15, 83, 158, 0.35);
  transition:
    transform 0.25s var(--ease),
    background 0.25s var(--ease);
}
.video-play-btn svg {
  width: 26px;
  height: 26px;
  margin-left: 3px;
}
.video-play-btn:hover {
  transform: translate(-50%, -50%) scale(1.08);
  background: #0d4783;
}
.video-play-btn.is-hidden {
  opacity: 0;
  pointer-events: none;
}
@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 0.35s var(--ease),
    visibility 0.35s var(--ease);
}
.lightbox.open {
  opacity: 1;
  visibility: visible;
}
.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 13, 10, 0.88);
  backdrop-filter: blur(3px);
}
.lightbox-inner {
  position: relative;
  z-index: 1;
  max-width: min(90vw, 1080px);
  max-height: 86vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  transform: scale(0.96);
  transition: transform 0.35s var(--ease);
}
.lightbox.open .lightbox-inner {
  transform: scale(1);
}
.lightbox-img {
  display: block;
  max-width: 100%;
  max-height: 76vh;
  border-radius: var(--radius);
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.5);
  object-fit: contain;
  background: #000;
}
.lightbox-caption {
  margin-top: 1em;
  display: flex;
  gap: 0.6em;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: rgba(247, 244, 238, 0.75);
}
.lightbox-caption strong {
  color: #f7f4ee;
  font-weight: 600;
}
.lightbox-close,
.lightbox-nav {
  position: fixed;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid rgba(247, 244, 238, 0.25);
  background: rgba(247, 244, 238, 0.08);
  color: #f7f4ee;
  cursor: pointer;
  transition:
    background 0.25s var(--ease),
    transform 0.25s var(--ease);
}
.lightbox-close {
  top: 1.4em;
  right: 1.6em;
  width: 2.6em;
  height: 2.6em;
  font-size: 1rem;
}
.lightbox-close:hover {
  background: rgba(247, 244, 238, 0.18);
  transform: rotate(90deg);
}
.lightbox-nav {
  top: 50%;
  translate: 0 -50%;
  width: 3em;
  height: 3em;
  font-size: 1.5rem;
}
.lightbox-nav:hover {
  background: rgba(247, 244, 238, 0.18);
}
.lightbox-prev {
  left: 1.6em;
}
.lightbox-next {
  right: 1.6em;
}
body.lightbox-locked {
  overflow: hidden;
}
@media (max-width: 720px) {
  .lightbox-close {
    top: 0.8em;
    right: 0.8em;
    width: 2.3em;
    height: 2.3em;
  }
  .lightbox-nav {
    width: 2.4em;
    height: 2.4em;
    font-size: 1.2rem;
  }
  .lightbox-prev {
    left: 0.6em;
  }
  .lightbox-next {
    right: 0.6em;
  }
  .lightbox-inner {
    max-width: 94vw;
  }
}

@media (max-width: 980px) {
  .projects-intro {
    grid-template-columns: 1fr;
  }
  .project-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 620px) {
  .project-grid {
    grid-template-columns: 1fr;
  }
}