* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: linear-gradient(135deg, #1E2235 0%, #0F1520 100%);
  color: #fff;
  min-height: 100vh;
  padding: 20px;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 2px solid rgba(255, 255, 255, 0.1);
}

h1 {
  font-size: 32px;
  font-weight: 900;
  letter-spacing: -0.5px;
}

.stats {
  display: flex;
  gap: 12px;
}

.stat-badge {
  background: rgba(255, 255, 255, 0.1);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.filters {
  display: flex;
  gap: 12px;
  margin-bottom: 30px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 10px 20px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  color: #fff;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.3s ease;
}

.filter-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.filter-btn.active {
  background: #00BCD4;
  border-color: #00BCD4;
  box-shadow: 0 4px 12px rgba(0, 188, 212, 0.3);
}

.submissions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.submission-card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.3s ease;
}

.submission-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
  border-color: rgba(255, 255, 255, 0.2);
}

.card-image {
  width: 100%;
  height: 200px;
  object-fit: contain;
  background: 
    linear-gradient(45deg, rgba(255,255,255,0.03) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(255,255,255,0.03) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgba(255,255,255,0.03) 75%),
    linear-gradient(-45deg, transparent 75%, rgba(255,255,255,0.03) 75%);
  background-size: 20px 20px;
  background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
  background-color: rgba(0, 0, 0, 0.3);
  padding: 10px;
}

.card-content {
  padding: 16px;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.catalog-id {
  font-weight: 700;
  font-size: 16px;
  color: #00BCD4;
}

.status-badge {
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  display: inline-block;
}

.status-badge.pending {
  background: rgba(255, 179, 0, 0.2);
  color: #FFB300;
  border: 1px solid rgba(255, 179, 0, 0.3);
}

.status-badge.approved {
  background: rgba(76, 175, 80, 0.2);
  color: #4CAF50;
  border: 1px solid rgba(76, 175, 80, 0.3);
}

.status-badge.rejected {
  background: rgba(244, 67, 54, 0.2);
  color: #F44336;
  border: 1px solid rgba(244, 67, 54, 0.3);
}

.card-info {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 4px;
}

.loading {
  text-align: center;
  padding: 60px 20px;
}

.spinner {
  border: 4px solid rgba(255, 255, 255, 0.1);
  border-top: 4px solid #00BCD4;
  border-radius: 50%;
  width: 50px;
  height: 50px;
  animation: spin 1s linear infinite;
  margin: 0 auto 20px;
}

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

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: rgba(255, 255, 255, 0.4);
  font-size: 18px;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.9);
  overflow-y: auto;
  animation: fadeIn 0.2s;
}

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

.modal-content {
  background: linear-gradient(135deg, #1E2235 0%, #0F1520 100%);
  margin: 2% auto;
  padding: 0;
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
  width: 95%;
  max-width: 1400px;
  animation: slideIn 0.3s;
}

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

.close {
  color: #aaa;
  float: right;
  font-size: 36px;
  font-weight: bold;
  padding: 20px 30px;
  cursor: pointer;
  transition: color 0.2s;
}

.close:hover {
  color: #fff;
}

.modal-body {
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.comparison-section h3,
.details-section h3 {
  margin-bottom: 20px;
  font-size: 20px;
  font-weight: 700;
}

.images-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

.image-box {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 20px;
}

.image-label {
  font-size: 14px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 12px;
  text-align: center;
}

.image-container {
  width: 100%;
  height: 400px;
  background: 
    linear-gradient(45deg, rgba(255,255,255,0.05) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(255,255,255,0.05) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgba(255,255,255,0.05) 75%),
    linear-gradient(-45deg, transparent 75%, rgba(255,255,255,0.05) 75%);
  background-size: 20px 20px;
  background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
  background-color: rgba(0, 0, 0, 0.3);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.image-container img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.no-image {
  text-align: center;
  color: rgba(255, 255, 255, 0.3);
  padding: 20px;
}

.no-image p:first-child {
  font-size: 48px;
  margin-bottom: 10px;
}

.detail-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.detail-row .label {
  color: rgba(255, 255, 255, 0.6);
  font-weight: 600;
  font-size: 14px;
}

.detail-row .value {
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
  text-align: right;
}

.message-section {
  margin-top: 24px;
}

.message-section label {
  display: block;
  margin-bottom: 8px;
  color: rgba(255, 255, 255, 0.8);
  font-weight: 600;
}

textarea {
  width: 100%;
  padding: 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  color: #fff;
  font-family: inherit;
  font-size: 14px;
  resize: vertical;
  min-height: 100px;
}

textarea:focus {
  outline: none;
  border-color: #00BCD4;
  background: rgba(255, 255, 255, 0.08);
}

.message-hint {
  margin-top: 8px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
  font-style: italic;
}

.action-buttons {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

.btn {
  flex: 1;
  padding: 14px 24px;
  border: none;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

.btn-approve {
  background: linear-gradient(135deg, #4CAF50, #45a049);
  color: white;
}

.btn-approve:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(76, 175, 80, 0.4);
}

.btn-reject {
  background: linear-gradient(135deg, #F44336, #d32f2f);
  color: white;
}

.btn-reject:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(244, 67, 54, 0.4);
}

.action-status {
  margin-top: 16px;
  padding: 12px;
  border-radius: 8px;
  text-align: center;
  font-weight: 600;
  display: none;
}

.action-status.success {
  background: rgba(76, 175, 80, 0.2);
  color: #4CAF50;
  border: 1px solid rgba(76, 175, 80, 0.3);
  display: block;
}

.action-status.error {
  background: rgba(244, 67, 54, 0.2);
  color: #F44336;
  border: 1px solid rgba(244, 67, 54, 0.3);
  display: block;
}

@media (max-width: 1024px) {
  .images-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  header {
    flex-direction: column;
    gap: 16px;
    align-items: flex-start;
  }
  
  .modal-content {
    width: 98%;
    margin: 1% auto;
  }
  
  .action-buttons {
    flex-direction: column;
  }
}