/* Modern Certificate Modal Styles */

.cert-modal {
  display: none;
  position: fixed;
  z-index: 10000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(10px);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.cert-modal.active {
  display: block;
  opacity: 1;
}

.cert-modal-content {
  position: relative;
  width: 95%;
  max-width: 1400px;
  height: 90vh;
  margin: 5vh auto;
  background: linear-gradient(135deg, #1e1e1e 0%, #2d2d2d 100%);
  border-radius: 20px;
  padding: 30px;
  box-shadow: 0 25px 100px rgba(0, 0, 0, 0.8);
  overflow: hidden;
  animation: slideIn 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes slideIn {
  from {
    transform: scale(0.9) translateY(50px);
    opacity: 0;
  }
  to {
    transform: scale(1) translateY(0);
    opacity: 1;
  }
}

.cert-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.2);
  color: white;
  font-size: 32px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

.cert-close:hover {
  background: rgba(255, 77, 77, 0.8);
  transform: rotate(90deg);
  border-color: #ff4d4d;
}

.cert-header {
  text-align: center;
  margin-bottom: 30px;
  color: white;
}

.cert-header h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 10px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cert-count {
  font-size: 1.2rem;
  color: #aaa;
}

/* Certificate Grid */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 25px;
  max-height: calc(90vh - 180px);
  overflow-y: auto;
  padding: 10px;
  scrollbar-width: thin;
  scrollbar-color: #667eea #2d2d2d;
}

.cert-grid::-webkit-scrollbar {
  width: 8px;
}

.cert-grid::-webkit-scrollbar-track {
  background: #2d2d2d;
  border-radius: 10px;
}

.cert-grid::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 10px;
}

.cert-card {
  background: linear-gradient(135deg, #2a2a2a 0%, #3a3a3a 100%);
  border-radius: 15px;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.cert-card:hover {
  transform: translateY(-10px);
  border-color: #667eea;
  box-shadow: 0 15px 40px rgba(102, 126, 234, 0.4);
}

.cert-card-image {
  position: relative;
  padding-top: 70%;
  overflow: hidden;
  background: #1e1e1e;
}

.cert-card-image img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

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

.cert-card-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(102, 126, 234, 0.9);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
  color: white;
}

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

.cert-card-overlay i {
  font-size: 48px;
  margin-bottom: 10px;
}

.cert-card-overlay span {
  font-size: 16px;
  font-weight: 600;
}

.cert-card-content {
  padding: 20px;
}

.cert-card-content h4 {
  font-size: 16px;
  font-weight: 600;
  color: white;
  margin-bottom: 10px;
  line-height: 1.4;
  min-height: 44px;
}

.cert-badge {
  display: inline-block;
  padding: 5px 12px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border-radius: 15px;
  font-size: 12px;
  font-weight: 600;
}

.cert-linkedin-icon {
  float: right;
  color: #0077b5;
  font-size: 20px;
  margin-top: 5px;
}

/* Certificate Viewer */
.cert-viewer {
  display: flex;
  align-items: center;
  justify-content: center;
  height: calc(90vh - 120px);
  gap: 20px;
  position: relative;
  padding-bottom: 120px;
}

.cert-nav {
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.2);
  color: white;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.cert-nav:hover {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-color: #667eea;
  transform: scale(1.1);
}

.cert-nav i {
  font-size: 32px;
}

.cert-image-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  max-height: 100%;
  position: relative;
}

.cert-image-container img {
  max-width: 100%;
  max-height: calc(90vh - 280px);
  object-fit: contain;
  border-radius: 10px;
  box-shadow: 0 10px 50px rgba(0, 0, 0, 0.5);
  margin-bottom: 15px;
}

.cert-details {
  text-align: center;
  color: white;
  width: 100%;
  padding: 0 20px;
  position: absolute;
  bottom: 35px;
  left: 0;
  right: 0;
  background: linear-gradient(
    to top,
    rgba(30, 30, 30, 0.98) 0%,
    rgba(30, 30, 30, 0.95) 60%,
    transparent 100%
  );
  padding: 25px 20px 30px 20px;
  z-index: 10;
}

.cert-details h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.3;
}

.cert-category {
  display: inline-block;
  padding: 6px 14px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 15px;
}

.cert-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  align-items: center;
  margin-top: 12px;
  flex-wrap: wrap;
}

.cert-actions a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 700;
  border-radius: 25px;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.cert-actions a.btn-small.teal {
  background: linear-gradient(135deg, #26a69a 0%, #00897b 100%);
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.cert-actions a.btn-small.teal:hover {
  background: linear-gradient(135deg, #00897b 0%, #00695c 100%);
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 8px 25px rgba(38, 166, 154, 0.6);
  border-color: rgba(255, 255, 255, 0.5);
}

.cert-actions a.btn-small.blue {
  background: linear-gradient(135deg, #0077b5 0%, #005885 100%);
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.cert-actions a.btn-small.blue:hover {
  background: linear-gradient(135deg, #005885 0%, #003d5c 100%);
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 8px 25px rgba(0, 119, 181, 0.6);
  border-color: rgba(255, 255, 255, 0.5);
}

.cert-actions a i {
  font-size: 16px;
}

.cert-back {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.2);
  color: white;
  padding: 12px 24px;
  border-radius: 25px;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 600;
}

.cert-back:hover {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-color: #667eea;
  transform: translateX(-50%) translateY(-5px);
}

/* Medium-Large Screens (1080p) */
@media only screen and (min-width: 1280px) and (max-width: 1919px) {
  .cert-modal-content {
    max-width: 1500px;
  }

  .cert-viewer {
    padding-bottom: 200px;
  }

  .cert-image-container img {
    max-height: calc(90vh - 300px);
    max-width: 95%;
  }

  .cert-details {
    bottom: -120px;
    padding: 20px 20px 25px 20px;
  }

  .cert-details h3 {
    font-size: 1.5rem;
    margin-bottom: 6px;
  }

  .cert-category {
    font-size: 13px;
    padding: 6px 14px;
    margin-bottom: 12px;
  }

  .cert-actions {
    gap: 10px;
    margin-top: 10px;
  }

  .cert-actions a {
    padding: 10px 22px;
    font-size: 14px;
  }
}

/* Large Screens (1080p and above) */
@media only screen and (min-width: 1920px) {
  .cert-modal-content {
    max-width: 1600px;
  }

  .cert-viewer {
    padding-bottom: 170px;
  }

  .cert-image-container img {
    max-height: calc(90vh - 350px);
    max-width: 90%;
  }

  .cert-details {
    bottom: -80px;
    padding: 25px 20px 35px 20px;
  }

  .cert-details h3 {
    font-size: 2rem;
  }

  .cert-category {
    font-size: 15px;
    padding: 8px 18px;
  }

  .cert-actions a {
    padding: 12px 28px;
    font-size: 15px;
  }
}

/* Responsive Design */
@media only screen and (max-width: 768px) {
  .cert-modal-content {
    width: 100%;
    height: 100vh;
    margin: 0;
    border-radius: 0;
    padding: 20px;
  }

  .cert-header h2 {
    font-size: 1.8rem;
  }

  .cert-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 15px;
    max-height: calc(100vh - 150px);
  }

  .cert-card-content h4 {
    font-size: 14px;
    min-height: 38px;
  }

  .cert-viewer {
    flex-direction: column;
    height: calc(100vh - 100px);
    gap: 10px;
    padding-bottom: 200px;
  }

  .cert-nav {
    position: absolute;
    top: 40%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    z-index: 20;
  }

  .cert-prev {
    left: 10px;
  }

  .cert-next {
    right: 10px;
  }

  .cert-image-container img {
    max-height: calc(100vh - 500px);
  }

  .cert-details {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 15px 15px 25px 15px;
    background: linear-gradient(
      to top,
      rgba(30, 30, 30, 1) 0%,
      rgba(30, 30, 30, 0.98) 80%,
      transparent 100%
    );
  }

  .cert-details h3 {
    font-size: 1.1rem;
    margin-bottom: 6px;
  }

  .cert-category {
    font-size: 11px;
    padding: 4px 10px;
    margin-bottom: 10px;
  }

  .cert-actions {
    flex-direction: column;
    gap: 10px;
    margin-top: 10px;
  }

  .cert-actions a {
    width: 100%;
    max-width: 280px;
    justify-content: center;
    padding: 12px 20px;
    font-size: 13px;
  }

  .cert-back {
    bottom: 5px;
    font-size: 13px;
    padding: 8px 16px;
    z-index: 5;
  }

  .cert-close {
    width: 40px;
    height: 40px;
    font-size: 24px;
  }
}

@media only screen and (max-width: 480px) {
  .cert-grid {
    grid-template-columns: 1fr;
  }

  .cert-header h2 {
    font-size: 1.5rem;
  }

  .cert-count {
    font-size: 1rem;
  }
}