/* Certificates Section Styles */
.certificates-section {
  max-width: 1200px;
  margin: 40px auto;
  background: var(--bg-elevated);
  padding: 80px 40px;
  border-radius: 16px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.light-theme .certificates-section {
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.certificates-title {
  text-align: center;
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 1rem;
  letter-spacing: 1px;
  position: relative;
}

.certificates-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 2px;
}

.certificates-subtitle {
  text-align: center;
  font-size: 1.2rem;
  color: var(--text-light);
  margin-bottom: 3rem;
  font-weight: 400;
}

/* Certificates Grid */
.certificates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.certificate-card {
  background: var(--bg-higher);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 16px;
  padding: 0;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  opacity: 0;
  transform: translateY(30px);
  animation: slideInUp 0.6s ease forwards;
}

.light-theme .certificate-card {
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.certificate-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(138, 99, 255, 0.05), transparent);
  transition: var(--transition);
}

.certificate-card:hover::before {
  left: 100%;
}

.certificate-card:hover {
  transform: translateY(-8px);
  border-color: var(--primary-color);
  box-shadow: 0 20px 40px rgba(138, 99, 255, 0.15);
}

.certificate-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 16px 16px 0 0;
  transition: var(--transition);
}

.certificate-card:hover .certificate-image {
  transform: scale(1.05);
}

.certificate-content {
  padding: 1.5rem;
}

.certificate-header {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  margin-bottom: 1rem;
}

.certificate-date {
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 500;
  background: var(--bg-elevated);
  padding: 0.4rem 0.8rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.light-theme .certificate-date {
  border: 1px solid rgba(0, 0, 0, 0.1);
}

.certificate-title {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.certificate-issuer {
  color: var(--accent-color);
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 0.8rem;
}

.certificate-description {
  color: var(--text-light);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 1rem;
}

.certificate-skills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.certificate-skill {
  background: rgba(138, 99, 255, 0.1);
  color: var(--accent-color);
  padding: 0.3rem 0.8rem;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 500;
  border: 1px solid rgba(138, 99, 255, 0.2);
}

.light-theme .certificate-skill {
  background: rgba(138, 99, 255, 0.08);
  border: 1px solid rgba(138, 99, 255, 0.15);
}

.certificate-actions {
  display: flex;
  gap: 0.5rem;
}

.certificate-actions:has(.certificate-btn:only-child) .certificate-btn {
  flex: 1;
}

.certificate-actions:has(.certificate-btn:not(:only-child)) .certificate-btn {
  flex: 1;
}

/* Fallback for browsers that don't support :has() */
.certificate-actions .certificate-btn {
  flex: 1;
  min-width: 0;
}

.certificate-btn {
  flex: 1;
  padding: 0.6rem 1rem;
  border: none;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  text-decoration: none;
}

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

.btn-primary:hover {
  background: var(--secondary-color);
  transform: translateY(-2px);
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-light);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.light-theme .btn-secondary {
  border: 1px solid rgba(0, 0, 0, 0.1);
}

.btn-secondary:hover {
  background: var(--bg-higher);
  color: var(--primary-color);
  border-color: var(--primary-color);
}

/* Certificate Modal */
.certificate-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.certificate-modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
}

.modal-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--bg-elevated);
  border-radius: 16px;
  max-width: 90vw;
  max-height: 90vh;
  overflow-y: auto;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
}

.light-theme .modal-content {
  border: 1px solid rgba(0, 0, 0, 0.1);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--bg-higher);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-color);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  z-index: 10;
}

.light-theme .modal-close {
  border: 1px solid rgba(0, 0, 0, 0.1);
}

.modal-close:hover {
  background: var(--primary-color);
  color: white;
  transform: scale(1.1);
}

.modal-body {
  padding: 2rem;
}

.modal-certificate-image {
  width: 100%;
  max-width: 600px;
  height: auto;
  border-radius: 12px;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow);
}

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

.modal-certificate-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-color);
  margin-bottom: 0.5rem;
}

.modal-certificate-issuer {
  font-size: 1.3rem;
  color: var(--primary-color);
  font-weight: 600;
  margin-bottom: 1rem;
}

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

.modal-certificate-description {
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 1.5rem;
  text-align: left;
}

.certificate-card.cert-collapsed {
  display: none !important;
}

.cert-toggle-wrapper {
  display: flex;
  justify-content: center;
  margin-top: 2rem;
}

.cert-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 28px;
  background: var(--bg-higher);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
  color: var(--text-light);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
}

.light-theme .cert-toggle-btn {
  border-color: rgba(0, 0, 0, 0.1);
}

.cert-toggle-btn:hover {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
  box-shadow: 0 4px 15px rgba(138, 99, 255, 0.3);
}

/* Animations */
@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .certificates-section {
    padding: 60px 24px;
    margin: 20px;
  }

  .certificates-title {
    font-size: 2.2rem;
  }

  .certificates-subtitle {
    font-size: 1.1rem;
    margin-bottom: 2rem;
  }

  .certificates-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .certificate-card {
    margin: 0;
  }

  .certificate-content {
    padding: 1.2rem;
  }

  .certificate-title {
    font-size: 1.1rem;
  }

  .certificate-actions {
    flex-direction: column;
  }

  .modal-content {
    width: 100%;
    max-height: 95vh;
  }

  .modal-body {
    padding: 1.5rem;
  }

  .modal-certificate-title {
    font-size: 1.5rem;
  }

  .modal-certificate-issuer {
    font-size: 1.1rem;
  }
}

@media (max-width: 480px) {
  .certificates-section {
    padding: 40px 16px;
  }

  .certificates-title {
    font-size: 1.8rem;
  }

  .certificate-content {
    padding: 1rem;
  }

  .certificate-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .certificate-skills {
    gap: 0.3rem;
  }

  .certificate-skill {
    font-size: 0.7rem;
    padding: 0.2rem 0.6rem;
  }

  .modal-body {
    padding: 1rem;
  }

  .modal-certificate-title {
    font-size: 1.3rem;
  }
}