/* Professional Certificate Modal Styles */

/* Modal Backdrop Enhancement */
.modal-backdrop {
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

/* Certificate Modal Container */
.certificate-modal {
  --modal-bg: #ffffff;
  --modal-border: #e0e6ed;
  --modal-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  --header-bg: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --header-text: #ffffff;
  --button-primary: #0d6efd;
  --button-secondary: #6c757d;
  --border-radius: 8px;
  --transition: all 0.3s ease;
}

.certificate-modal .modal-dialog {
  max-width: 900px;
  margin: 1.5rem auto;
  transition: var(--transition);
}

.certificate-modal .modal-content {
  border: none;
  border-radius: var(--border-radius);
  box-shadow: var(--modal-shadow);
  background: var(--modal-bg);
  overflow: hidden;
}

/* Enhanced Modal Header */
.certificate-modal .modal-header {
  background: var(--header-bg);
  color: var(--header-text);
  border: none;
  padding: 1rem 1.5rem;
  border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.certificate-modal .modal-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

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

/* Modal Header Buttons */
.modal-header-buttons .btn {
  padding: 0.375rem 0.75rem;
  border-radius: 4px;
  transition: var(--transition);
}

.modal-header-buttons .btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.certificate-modal .btn-close {
  filter: invert(1);
  opacity: 0.8;
  transition: var(--transition);
  margin: 0;
}

.certificate-modal .btn-close:hover {
  opacity: 1;
  transform: scale(1.1);
}

/* Remove toolbar - not needed in this design */

/* Certificate Content Area */
.certificate-modal .modal-body {
  padding: 0;
  position: relative;
  min-height: 60vh;
}

.certificate-iframe-container {
  position: relative;
  width: 100%;
  height: 60vh;
  background: #f8f9fa;
  overflow: hidden;
}

.certificate-iframe {
  width: 100%;
  height: 100%;
  border: none;
  transition: opacity 0.3s ease;
}

/* Loading Overlay */
.certificate-loading {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.95);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  transition: opacity 0.3s ease;
  z-index: 10;
}

.certificate-loading.hide {
  opacity: 0;
  pointer-events: none;
}

.certificate-spinner {
  width: 3rem;
  height: 3rem;
  border: 4px solid #e9ecef;
  border-top: 4px solid var(--button-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.certificate-loading-text {
  color: #6c757d;
  font-size: 1rem;
  font-weight: 500;
}

/* Simple Modal Footer */
.certificate-modal .modal-footer {
  background: #f8f9fa;
  border-top: 1px solid var(--modal-border);
  padding: 1rem;
  border-radius: 0 0 var(--border-radius) var(--border-radius);
}

.certificate-modal .modal-footer .btn {
  padding: 0.5rem 1.5rem;
  font-weight: 500;
  border-radius: 6px;
  transition: var(--transition);
  margin: 0 0.25rem;
}

.certificate-modal .modal-footer .btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.certificate-modal .modal-footer .btn-primary {
  background: var(--button-primary);
  border-color: var(--button-primary);
}

.certificate-modal .modal-footer .btn-secondary {
  background: var(--button-secondary);
  border-color: var(--button-secondary);
}

/* Certificate Status Badge */
.certificate-status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0.75rem;
  background: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}

.certificate-status i {
  font-size: 0.875rem;
}

/* Fullscreen Mode */
.certificate-modal.fullscreen .modal-dialog {
  max-width: 100vw;
  margin: 0;
  height: 100vh;
}

.certificate-modal.fullscreen .modal-content {
  height: 100vh;
  border-radius: 0;
}

.certificate-modal.fullscreen .certificate-iframe-container {
  height: calc(100vh - 200px);
  border-radius: 0;
}

.certificate-modal.fullscreen .certificate-iframe {
  border-radius: 0;
}

/* Share Dropdown */
/* Share dropdown styles removed - using native share functionality */

/* Share option styles removed - using native share functionality */

/* Modal Maximize State */
.certificate-modal.maximized .modal-dialog {
  max-width: 95vw;
  width: 95vw;
  height: 90vh;
  margin: 2.5vh auto;
  border-radius: 8px;
}

.certificate-modal.maximized .modal-content {
  height: 90vh;
  border-radius: 8px;
}

.certificate-modal.maximized .certificate-iframe-container {
  height: calc(90vh - 80px);
}

.certificate-modal.maximized .btn-maximize i {
  transform: rotate(45deg);
  transition: transform 0.3s ease;
}

/* Default modal size for documents */
.certificate-modal .certificate-iframe-container {
  height: 70vh;
  min-height: 500px;
}

/* Responsive Design */
@media (max-width: 768px) {
  .certificate-modal .modal-dialog {
    max-width: 95vw;
    margin: 0.5rem auto;
  }
  
  .certificate-modal .modal-header {
    padding: 0.75rem 1rem;
    flex-wrap: wrap;
  }
  
  .certificate-modal .modal-title {
    font-size: 1.1rem;
  }
  
  .modal-header-buttons {
    gap: 0.5rem;
  }
  
  .modal-header-buttons .btn {
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
  }
  
  .certificate-iframe-container {
    height: 50vh;
  }
  
  .certificate-modal .modal-footer {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .certificate-modal .modal-footer .btn {
    width: 100%;
    max-width: 200px;
  }
  
  /* Share dropdown responsive styles removed */
}

@media (max-width: 576px) {
  .certificate-modal .modal-dialog {
    margin: 0.25rem auto;
  }
  
  .certificate-modal .modal-title {
    font-size: 1rem;
  }
  
  .certificate-iframe-container {
    height: 45vh;
  }
  
  .modal-header-buttons .btn {
    padding: 0.2rem 0.4rem;
  }
}

/* Print Styles */
@media print {
  .certificate-modal .modal-header,
  .certificate-modal .certificate-toolbar,
  .certificate-modal .modal-footer {
    display: none !important;
  }
  
  .certificate-modal .modal-content {
    box-shadow: none;
    border: none;
  }
  
  .certificate-iframe-container {
    height: 100vh;
  }
}

/* Dark Theme Support */
@media (prefers-color-scheme: dark) {
  .certificate-modal {
    --modal-bg: #2c3e50;
    --modal-border: #34495e;
    --toolbar-bg: #34495e;
    --header-text: #ffffff;
  }
  
  .certificate-modal .modal-content {
    background: var(--modal-bg);
    color: #ffffff;
  }
  
  .certificate-toolbar {
    background: var(--toolbar-bg);
    border-color: var(--modal-border);
  }
  
  .certificate-modal .modal-footer {
    background: var(--toolbar-bg);
    border-color: var(--modal-border);
  }
  
  /* More share option styles removed */
}

/* Animation Classes */
.fade-in {
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.slide-up {
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Success Toast Notification */
.certificate-toast {
  position: fixed;
  top: 20px;
  right: 20px;
  background: #28a745;
  color: white;
  padding: 1rem 1.5rem;
  border-radius: 8px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
  z-index: 2000;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transform: translateX(400px);
  transition: transform 0.3s ease;
}

.certificate-toast.show {
  transform: translateX(0);
}

.certificate-toast i {
  font-size: 1.25rem;
}