/* ============ Portfolio Page ============ */

.active-link {
  color: var(--color-accent) !important;
  font-weight: 600;
}

.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: 1.0625rem;
}

.portfolio-hero {
  padding-bottom: var(--space-8);
}

/* ---- Filters ---- */
.portfolio-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
  margin-bottom: var(--space-10);
}

.filter-btn {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-muted);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: var(--space-2) var(--space-5);
  cursor: pointer;
  transition: var(--transition-interactive);
}

.filter-btn:hover {
  color: var(--color-text);
  border-color: var(--color-accent);
}

.filter-btn.is-active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #ffffff;
}

/* ---- Grid ---- */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.portfolio-item {
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  border: none;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  background: var(--color-surface-2);
  aspect-ratio: 4 / 3;
  transition: transform var(--transition-interactive), box-shadow var(--transition-interactive);
}

.portfolio-item.is-hidden {
  display: none;
}

.portfolio-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 400ms cubic-bezier(0.16, 1, 0.3, 1);
}

.portfolio-item:hover {
  box-shadow: var(--shadow-lg);
}

.portfolio-item:hover img {
  transform: scale(1.06);
}

.portfolio-item-tag {
  position: absolute;
  bottom: var(--space-3);
  left: var(--space-3);
  background: oklch(0.16 0.05 255 / 0.72);
  color: #ffffff;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
}

@media (max-width: 900px) {
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

/* ---- Cinematic video ---- */
.video-portfolio {
  padding-top: var(--space-12);
  background: var(--color-surface);
}

.video-portfolio-header {
  max-width: 720px;
  margin: 0 auto var(--space-8);
  text-align: center;
}

.video-portfolio-header .section-lede {
  margin: var(--space-4) auto 0;
}

.video-showcase {
  max-width: 1040px;
  margin: 0 auto;
  padding: 8px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface-2);
  box-shadow: var(--shadow-lg);
}

.video-frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border-radius: calc(var(--radius-lg) - 6px);
  background: #05070b;
}

.video-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

@media (max-width: 640px) {
  .video-portfolio {
    padding-top: var(--space-8);
  }

  .video-showcase {
    padding: 5px;
    border-radius: var(--radius-md);
  }

  .video-frame {
    border-radius: calc(var(--radius-md) - 4px);
  }
}

/* ---- CTA band ---- */
.portfolio-cta {
  background: var(--color-primary);
}

[data-theme='dark'] .portfolio-cta,
:root:not([data-theme]) .portfolio-cta {
  background: var(--color-brand-navy);
}

.portfolio-cta-inner {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.portfolio-cta-title {
  color: #f7f8fa;
}

.portfolio-cta-lede {
  color: #b9c4d6;
}

/* ---- Lightbox ---- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  background: oklch(0.1 0.03 255 / 0.92);
  padding: var(--space-8);
}

.lightbox[hidden] {
  display: none;
}

.lightbox-image {
  max-width: min(90vw, 1200px);
  max-height: 85vh;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  object-fit: contain;
}

.lightbox-close {
  position: absolute;
  top: var(--space-6);
  right: var(--space-6);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  background: oklch(1 0 0 / 0.08);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition-interactive);
}

.lightbox-close:hover {
  background: oklch(1 0 0 / 0.18);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  background: oklch(1 0 0 / 0.08);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition-interactive);
}

.lightbox-nav:hover {
  background: oklch(1 0 0 / 0.18);
}

.lightbox-prev {
  left: var(--space-6);
}

.lightbox-next {
  right: var(--space-6);
}

@media (max-width: 640px) {
  .lightbox-nav {
    width: 42px;
    height: 42px;
  }
  .lightbox-close {
    top: var(--space-4);
    right: var(--space-4);
  }
  .lightbox-prev {
    left: var(--space-2);
  }
  .lightbox-next {
    right: var(--space-2);
  }
}