/* Teral Certificates – frontend grid & lightbox */

.certifications-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

@media screen and (min-width: 640px) {
  .certifications-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
  }
}

@media screen and (min-width: 768px) {
  .certifications-grid.certifications-grid--cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .certifications-grid.certifications-grid--cols-4 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media screen and (min-width: 1024px) {
  .certifications-grid.certifications-grid--cols-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.75rem;
  }

  .certifications-grid.certifications-grid--cols-5 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media screen and (min-width: 1280px) {
  .certifications-grid.certifications-grid--cols-5 {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

.cert-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: linear-gradient(160deg, #ffffff 0%, #f8fbff 100%);
  border: 1px solid rgba(15, 44, 73, 0.08);
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: 0 4px 18px rgba(15, 44, 73, 0.06);
  transition:
    transform 0.35s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.35s ease,
    border-color 0.35s ease;
}

.cert-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #02a2e4, #0f2c49);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.cert-card:hover {
  transform: translateY(-4px);
  border-color: rgba(2, 162, 228, 0.28);
  box-shadow: 0 16px 40px rgba(15, 44, 73, 0.12);
}

.cert-card:hover::before {
  opacity: 1;
}

.cert-card__trigger {
  display: block;
  width: 100%;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  text-align: left;
  font: inherit;
}

.cert-card__trigger:disabled {
  cursor: default;
}

.cert-card__image-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 4 / 3;
  padding: 1.25rem 1.5rem;
  background: linear-gradient(180deg, #f3f8fc 0%, #ffffff 100%);
  overflow: hidden;
}

.cert-card__image {
  width: 100%;
  height: 100%;
  max-height: 140px;
  object-fit: contain;
  transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
  filter: drop-shadow(0 4px 12px rgba(15, 44, 73, 0.08));
}

.cert-card:hover .cert-card__image {
  transform: scale(1.05);
}

.cert-card__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: rgba(15, 44, 73, 0.72);
  color: #fff;
  opacity: 0;
  transition: opacity 0.3s ease;
  backdrop-filter: blur(2px);
}

.cert-card__trigger:not(:disabled):hover .cert-card__overlay,
.cert-card__trigger:not(:disabled):focus-visible .cert-card__overlay {
  opacity: 1;
}

.cert-card__overlay-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.35);
}

.cert-card__overlay-text {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.cert-card__placeholder {
  font-size: 2.5rem;
  line-height: 1;
  opacity: 0.35;
}

.cert-card__body {
  padding: 1.125rem 1.25rem 1.375rem;
  text-align: center;
  border-top: 1px solid rgba(15, 44, 73, 0.06);
}

.cert-card__title {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 700;
  color: #0f2c49;
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.cert-card__desc {
  margin: 0.5rem 0 0;
  font-size: 0.8125rem;
  color: #6b7280;
  line-height: 1.55;
}

/* Lightbox – full viewport for maximum certificate clarity */
.cert-lightbox {
  position: fixed;
  inset: 0;
  z-index: 100000;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: stretch;
  padding: 0;
  box-sizing: border-box;
  overflow: hidden;
  overscroll-behavior: contain;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity 0.3s ease,
    visibility 0.3s ease;
}

.cert-lightbox.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.cert-lightbox__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 44, 73, 0.88);
  backdrop-filter: blur(6px);
}

.cert-lightbox__dialog {
  position: relative;
  z-index: 1;
  flex: 1 1 auto;
  width: 100vw;
  max-width: 100vw;
  height: 100vh;
  height: 100dvh;
  margin: 0;
  display: flex;
  flex-direction: column;
  background: #fff;
  border-radius: 0;
  overflow: hidden;
  box-shadow: none;
  transform: translateY(8px);
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

.cert-lightbox.is-open .cert-lightbox__dialog {
  transform: translateY(0);
}

.cert-lightbox__close {
  position: absolute;
  top: max(0.875rem, env(safe-area-inset-top, 0px));
  right: max(0.875rem, env(safe-area-inset-right, 0px));
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border: none;
  border-radius: 999px;
  background: rgba(15, 44, 73, 0.75);
  color: #fff;
  cursor: pointer;
  transition:
    background 0.2s ease,
    transform 0.2s ease;
}

.cert-lightbox__close:hover {
  background: #0f2c49;
  transform: scale(1.05);
}

.cert-lightbox__close:focus-visible {
  outline: 2px solid #02a2e4;
  outline-offset: 2px;
}

.cert-lightbox__image-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1 1 auto;
  min-height: 0;
  width: 100%;
  padding: 3.75rem 1.25rem 1rem;
  background: linear-gradient(180deg, #f3f8fc 0%, #ffffff 100%);
  overflow: auto;
}

.cert-lightbox__image {
  display: block;
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: 0.25rem;
  box-shadow: 0 4px 24px rgba(15, 44, 73, 0.1);
}

.cert-lightbox__caption {
  flex-shrink: 0;
  padding: 1rem 1.5rem max(1.125rem, env(safe-area-inset-bottom, 0px));
  text-align: center;
  border-top: 1px solid rgba(15, 44, 73, 0.08);
  background: #fff;
}

.cert-lightbox__title {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 700;
  color: #0f2c49;
  letter-spacing: -0.01em;
}

.cert-lightbox__desc {
  margin: 0.375rem 0 0;
  font-size: 0.9375rem;
  color: #6b7280;
  line-height: 1.6;
}

.cert-lightbox__desc:empty {
  display: none;
}

body.cert-lightbox-open {
  overflow: hidden;
}

@media screen and (max-width: 639px) {
  .cert-lightbox__image-wrap {
    padding: 3.25rem 0.75rem 0.75rem;
  }

  .cert-lightbox__caption {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .cert-card__image-wrap {
    padding: 1rem;
  }
}