/* Certificates Page Styles */

/* Intro Section */
.certificates-intro {
  padding: 3rem 0;
  background-color: white;
}

.intro-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.intro-content h2 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  color: var(--text-color);
}

.intro-content p {
  font-size: 1.125rem;
  color: var(--text-light);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.intro-features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-top: 2rem;
}

.feature {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 1.5rem;
  background-color: var(--gray-light);
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.feature:hover {
  transform: translateY(-5px);
  box-shadow: var(--box-shadow);
}

.feature i {
  font-size: 2rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.feature span {
  font-weight: 500;
  color: var(--text-color);
}

/* Certificates Gallery */
.certificates-gallery {
  padding: 4rem 0;
}

.certificates-filter {
  display: flex;
  justify-content: center;
  margin-bottom: 3rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.filter-btn {
  padding: 0.75rem 1.5rem;
  background-color: white;
  color: var(--text-color);
  border: 1px solid var(--gray);
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
}

.filter-btn:hover {
  background-color: var(--primary-very-light);
  border-color: var(--primary-color);
}

.filter-btn.active {
  background-color: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.certificates-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.certificate-item {
  background-color: white;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--box-shadow);
  transition: var(--transition);
  opacity: 1;
  transform: scale(1);
}

.certificate-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.certificate-item.hidden {
  opacity: 0;
  transform: scale(0.8);
  pointer-events: none;
}

.certificate-image {
  position: relative;
  height: 300px;
  overflow: hidden;
  cursor: pointer;
}

.certificate-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.certificate-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(59, 130, 246, 0.9);
  color: white;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

.certificate-image:hover .certificate-overlay {
  opacity: 1;
}

.certificate-image:hover img {
  transform: scale(1.1);
}

.certificate-overlay i {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.certificate-overlay span {
  font-weight: 500;
  font-size: 1.125rem;
}

.certificate-info {
  padding: 1.5rem;
}

.certificate-info h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--text-color);
}

.certificate-info p {
  color: var(--text-light);
  margin-bottom: 1rem;
  line-height: 1.5;
  font-size: 0.875rem;
}

.certificate-meta {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.certificate-number {
  font-weight: 500;
  color: var(--primary-color);
  font-size: 0.875rem;
}

.certificate-date {
  color: var(--text-light);
  font-size: 0.875rem;
}

/* Certificate Modal */
.certificate-modal-content {
  position: relative;
  display: flex;
  flex-direction: column;
  max-height: 90vh;
}

.certificate-modal-content img {
  max-width: 100%;
  max-height: 60vh;
  object-fit: contain;
  margin: 0 auto 1.5rem;
  border-radius: var(--border-radius);
}

.certificate-modal-nav {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-between;
  transform: translateY(-50%);
  padding: 0 1rem;
  pointer-events: none;
}

.certificate-prev,
.certificate-next {
  width: 50px;
  height: 50px;
  background-color: rgba(255, 255, 255, 0.9);
  color: var(--text-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  pointer-events: all;
  font-size: 1.25rem;
}

.certificate-prev:hover,
.certificate-next:hover {
  background-color: var(--primary-color);
  color: white;
}

.certificate-modal-info {
  text-align: center;
}

.certificate-modal-info h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text-color);
}

.certificate-modal-info p {
  color: var(--text-light);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.modal-certificate-meta {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.modal-certificate-meta span {
  padding: 0.5rem 1rem;
  background-color: var(--gray-light);
  border-radius: var(--border-radius);
  font-size: 0.875rem;
}

#modal-certificate-number {
  color: var(--primary-color);
  font-weight: 500;
}

#modal-certificate-date {
  color: var(--text-light);
}

/* Info Section */
.certificates-info {
  padding: 4rem 0;
  background-color: var(--primary-very-light);
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.info-item {
  text-align: center;
  padding: 2rem;
  background-color: white;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  transition: var(--transition);
}

.info-item:hover {
  transform: translateY(-5px);
}

.info-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background-color: var(--primary-very-light);
  color: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  font-size: 2rem;
}

.info-item h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--text-color);
}

.info-item p {
  color: var(--text-light);
  line-height: 1.6;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .intro-features {
    grid-template-columns: repeat(2, 1fr);
  }

  .certificates-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .info-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .intro-features {
    grid-template-columns: 1fr;
  }

  .certificates-filter {
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 0.5rem;
  }

  .filter-btn {
    white-space: nowrap;
    flex-shrink: 0;
  }

  .certificates-grid {
    grid-template-columns: 1fr;
  }

  .info-grid {
    grid-template-columns: 1fr;
  }

  .certificate-image {
    height: 250px;
  }

  .modal-certificate-meta {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }
}

@media (max-width: 576px) {
  .certificates-intro {
    padding: 2rem 0;
  }

  .intro-content h2 {
    font-size: 1.75rem;
  }

  .intro-content p {
    font-size: 1rem;
  }

  .feature {
    padding: 1rem;
  }

  .feature i {
    font-size: 1.5rem;
  }

  .certificate-image {
    height: 200px;
  }

  .certificate-info {
    padding: 1rem;
  }

  .certificate-prev,
  .certificate-next {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }
}