/* Extracted from inline <style> in page-certificates.php (part of #11 front-end unification) */

/* ── Certificate Grid ── */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}
.cert-card {
  background: #fff;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .3s ease, box-shadow .3s ease;
}
.cert-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.cert-img-wrapper {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #f0f0f0;
  cursor: pointer;
}
/* Override WordPress global img { height: auto; max-width: 100% } */
.cert-img-wrapper > .cert-thumb {
  display: block;
  width: 100%;
  height: 100% !important;
  min-height: 100%;
  object-fit: contain;            /* scale proportionally, never crop/fill */
  padding: var(--space-5, 20px);  /* breathing room — do NOT fill the container */
  object-position: center center;
  transition: transform .4s ease;
}
.cert-card:hover .cert-thumb {
  transform: scale(1.05);
}
.cert-overlay {
  position: absolute;
  inset: 0;
  background: rgba(15,36,64,.7);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity .3s ease;
  color: #fff;
  gap: var(--space-2);
}
.cert-card:hover .cert-overlay {
  opacity: 1;
}
.cert-overlay span {
  font-size: var(--text-sm);
  font-weight: 500;
}
.cert-caption {
  text-align: center;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-gray-800);
  margin: 0;
}

/* ── Cert CTA (dark hero-style) ── */
.cert-cta h3 {
  color: #fff;
  font-size: var(--text-2xl, 1.5rem);
  margin-bottom: var(--space-3);
}
.cert-cta .btn-accent {
  background: var(--color-accent-700, #ea580c);
  color: #fff;
  border: none;
}
.cert-cta .btn-accent:hover {
  background: var(--color-accent-600, #f97316);
}

/* ── Lightbox Modal (hidden until .is-active) ── */
.cert-lightbox {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: none;
  align-items: center;
  justify-content: center;
}
.cert-lightbox.is-active {
  display: flex !important;
}
.cert-lightbox__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.85);
  backdrop-filter: blur(8px);
}
.cert-lightbox__content {
  position: relative;
  z-index: 1;
  max-width: 90vw;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.cert-lightbox__img {
  max-width: 90vw;
  max-height: 75vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: 0 20px 60px rgba(0,0,0,.5);
  transition: opacity .25s ease;
}
.cert-lightbox__caption {
  color: #fff;
  margin-top: var(--space-4);
  font-size: var(--text-base);
  text-align: center;
}
.cert-lightbox__close,
.cert-lightbox__prev,
.cert-lightbox__next {
  position: absolute;
  z-index: 2;
  border: none;
  background: rgba(255,255,255,.15);
  color: #fff;
  cursor: pointer;
  transition: background .2s;
  border-radius: 50%;
}
.cert-lightbox__close {
  top: 20px; right: 20px;
  width:44px;height:44px;font-size:28px;line-height:1;display:flex;align-items:center;justify-content:center;
}
.cert-lightbox__prev,
.cert-lightbox__next {
  top: 50%; transform: translateY(-50%);
  width:48px;height:48px;font-size:22px;display:flex;align-items:center;justify-content:center;
}
.cert-lightbox__prev { left: 16px; }
.cert-lightbox__next { right: 16px; }
.cert-lightbox__close:hover,
.cert-lightbox__prev:hover,
.cert-lightbox__next:hover { background: rgba(255,255,255,.3); }
.cert-lightbox__counter {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,.6);
  font-size: 14px;
  z-index: 2;
}

/* Responsive */
@media (max-width: 768px) {
  .cert-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  .cert-lightbox__content {
    max-width: 95vw;
  }
  .cert-lightbox__img {
    max-height: 65vh;
  }
  .cert-lightbox__prev,
  .cert-lightbox__next {
    width:40px;height:40px;font-size:18px;
  }
  .cert-lightbox__prev { left: 8px; }
  .cert-lightbox__next { right: 8px; }
}