/**
 * Download Page - Custom Styles
 * Modern, polished design with smooth animations
 */

:root {
  --primary-color: #0d6efd;
  --secondary-color: #6c757d;
  --success-color: #198754;
  --danger-color: #dc3545;
  --warning-color: #ffc107;
  --info-color: #0dcaf0;
  --light-bg: #f8f9fa;
  --card-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  --card-hover-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Hero Section */
.download-hero {
  padding: 2rem 0;
}

.hero-icon {
  font-size: 4rem;
  color: var(--primary-color);
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.download-hero h1 {
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 1rem;
}

.download-hero .lead {
  color: #6c757d;
  font-size: 1.1rem;
  max-width: 800px;
  margin: 0 auto;
}

/* Filter Section */
.filter-section {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  border-bottom: 3px solid var(--primary-color);
  position: sticky;
  top: 80px;
  z-index: 100;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.filter-section .form-label {
  color: #495057;
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
}

.filter-section .form-control,
.filter-section .form-select {
  border: 2px solid #dee2e6;
  border-radius: 8px;
  transition: var(--transition);
  font-size: 0.95rem;
}

.filter-section .form-control:focus,
.filter-section .form-select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.15);
}

#activeFiltersDisplay {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.filter-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--primary-color);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.875rem;
  animation: slideIn 0.3s ease-out;
}

.filter-badge .remove-filter {
  cursor: pointer;
  font-size: 1.2rem;
  line-height: 1;
  opacity: 0.8;
  transition: opacity 0.2s;
}

.filter-badge .remove-filter:hover {
  opacity: 1;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Section Headers */
.section-header {
  margin-bottom: 2rem;
  position: relative;
  padding-bottom: 1rem;
}

.section-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), transparent);
  border-radius: 2px;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: #1a1a1a;
  display: flex;
  align-items: center;
  margin-bottom: 0.5rem;
}

.section-title i {
  font-size: 2.5rem;
  color: var(--primary-color);
}

.section-subtitle {
  color: #6c757d;
  font-size: 1rem;
  margin-bottom: 0;
}

/* File Cards */
.file-card-wrapper {
  transition: transform 0.3s ease;
}

.file-card {
  background: white;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: var(--transition);
  border: 1px solid #e9ecef;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.file-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--card-hover-shadow);
  border-color: var(--primary-color);
}

.file-card-header {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  padding: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  border-bottom: 2px solid #dee2e6;
}

.file-icon {
  font-size: 2.5rem;
  animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: scale(0.8); }
  to { opacity: 1; transform: scale(1); }
}

.category-badge {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.4rem 0.8rem;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.badge-gazzets {
  background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
  color: white;
}

.badge-circulars {
  background: linear-gradient(135deg, #0d6efd 0%, #0a58ca 100%);
  color: white;
}

.badge-presentation {
  background: linear-gradient(135deg, #ffc107 0%, #e0a800 100%);
  color: #000;
}

.badge-other {
  background: linear-gradient(135deg, #198754 0%, #146c43 100%);
  color: white;
}

.file-card-body {
  padding: 1.5rem;
  flex-grow: 1;
}

.file-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: #1a1a1a;
  margin-bottom: 1rem;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

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

.meta-item {
  font-size: 0.875rem;
  color: #6c757d;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.meta-item i {
  color: var(--primary-color);
  font-size: 1rem;
}

.file-card-footer {
  padding: 1rem 1.5rem;
  background: #f8f9fa;
  border-top: 1px solid #dee2e6;
  display: flex;
  gap: 0.5rem;
}

.file-card-footer .btn {
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  transition: var(--transition);
}

.file-card-footer .btn i {
  font-size: 1rem;
}

/* View More Button */
.view-more-btn {
  padding: 0.75rem 2rem;
  border-radius: 30px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: var(--transition);
  box-shadow: 0 4px 12px rgba(13, 110, 253, 0.2);
}

.view-more-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(13, 110, 253, 0.3);
}

.view-more-btn i {
  transition: transform 0.3s;
}

.view-more-btn:hover i {
  transform: translateY(3px);
}

.view-more-btn.expanded i {
  transform: rotate(180deg);
}

/* Language Selector */
.language-selector .dropdown-toggle {
  border-radius: 20px;
  padding: 0.375rem 1rem;
  font-weight: 600;
  font-size: 0.875rem;
  min-width: 70px;
}

.language-selector .dropdown-menu {
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  border: 1px solid #dee2e6;
  min-width: 150px;
}

.language-selector .dropdown-item {
  padding: 0.5rem 1rem;
  transition: background-color 0.2s;
  font-size: 0.9rem;
}

.language-selector .dropdown-item:hover {
  background-color: #f8f9fa;
}

.language-selector .dropdown-item.active {
  background-color: var(--primary-color);
  color: white;
}

/* PDF Modal */
#pdfModal .modal-content {
  border-radius: 16px;
  overflow: hidden;
}

#pdfModal .modal-header {
  background: linear-gradient(135deg, var(--primary-color) 0%, #0a58ca 100%);
  color: white;
  border: none;
  padding: 1.5rem;
}

#pdfModal .modal-title {
  font-weight: 600;
}

#pdfModal .btn-close {
  filter: brightness(0) invert(1);
}

#pdfModal .modal-footer {
  background: #f8f9fa;
  border-top: 1px solid #dee2e6;
  padding: 1rem 1.5rem;
}

/* Hidden/Show States */
.hidden {
  display: none !important;
}

.fade-in {
  animation: fadeInUp 0.5s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  color: #6c757d;
}

.empty-state i {
  font-size: 4rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.empty-state h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero-icon {
    font-size: 3rem;
  }
  
  .download-hero h1 {
    font-size: 2rem;
  }
  
  .section-title {
    font-size: 1.5rem;
  }
  
  .section-title i {
    font-size: 1.8rem;
  }
  
  .filter-section {
    position: relative;
    top: 0;
  }
  
  .file-card-footer {
    flex-direction: column;
  }
  
  .file-card-footer .btn {
    width: 100%;
  }
}

@media (max-width: 576px) {
  .filter-section .col-md-6,
  .filter-section .col-lg-2,
  .filter-section .col-lg-4 {
    margin-bottom: 1rem;
  }
  
  .language-selector {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
  }
  
  .language-selector .dropdown-toggle {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  }
}

/* Print Styles */
@media print {
  .filter-section,
  .view-more-btn,
  .file-card-footer,
  header,
  footer,
  .language-selector {
    display: none !important;
  }
  
  .file-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #dee2e6;
  }
}

/* Accessibility Improvements */
.file-card:focus-within {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

.btn:focus {
  box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

/* Loading State */
.loading-spinner {
  display: inline-block;
  width: 1.5rem;
  height: 1.5rem;
  border: 3px solid rgba(13, 110, 253, 0.2);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}