/* ============================================
   PORTFOLIO COMPONENTS — Section tags, lightbox, reveal
   ============================================ */

/* ── Section tag & title ── */
.section-tag {
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.section-tag::before {
  content: '';
  width: 30px;
  height: 1px;
  background: var(--c-accent);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 4.5rem);
  font-weight: 400;
  line-height: 1.1;
  color: var(--c-text-strong);
  margin-bottom: 2rem;
}
.section-title em {
  font-family: var(--font-heading);
  font-style: italic;
  font-weight: 300;
  color: var(--c-accent-light);
}

/* ── Reveal helper (GSAP) ── */
.reveal {
  opacity: 0;
  transform: translateY(40px);
}

/* ── LIGHTBOX ── */
.portfolio-lightbox {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  background: var(--c-glass-full);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}
.portfolio-lightbox.open {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  transition: opacity 0.3s ease;
}

.lightbox-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-text-dim);
  transition: color 0.3s;
}
.lightbox-close:hover { color: var(--c-accent); }
.lightbox-close svg { width: 24px; height: 24px; }

.lightbox-prev,
.lightbox-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-text-dim);
  transition: color 0.3s;
}
.lightbox-prev { left: 1.5rem; }
.lightbox-next { right: 1.5rem; }
.lightbox-prev:hover,
.lightbox-next:hover { color: var(--c-accent); }
.lightbox-prev svg,
.lightbox-next svg { width: 28px; height: 28px; }

.lightbox-counter {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--c-text-dim);
}

/* ── Error / empty state ── */
.portfolio-error {
  text-align: center;
  color: var(--c-text-dim);
  padding: 4rem var(--page-gutter);
  font-size: 0.9rem;
}