/* Keep the HTML hidden attribute authoritative, even when component styles set display. */
[hidden] {
  display: none !important;
}

.container {
  max-width: 820px !important;
  margin: 0 auto !important;
  width: 100% !important;
}

.app-header {
  text-align: center !important;
  background: linear-gradient(135deg, #9CA1E2 0%, #4b85e6 50%, #9CA1E2 100%) !important;
  color: #FFFFFF !important;
  padding: 31px !important;
  border-radius: 15px !important;
  margin-bottom: 10px !important;
  box-shadow: 0 10px 30px rgba(30, 58, 138, 0.2) !important;
}

.app-header h1 {
  font-size: 28px !important;
  font-weight: 700 !important;
  letter-spacing: 0.3px !important;
}

.card {
  background: #FFFFFF !important;
  border: 1px solid #E3E8F4 !important;
  border-radius: 16px !important;
  box-shadow: 0 8px 24px rgba(59, 130, 246, 0.08) !important;
  padding: 28px !important;
  margin-bottom: 16px !important;
}

.upload-card {
  padding: 32px !important;
}

.drop-zone {
  border: 2px dashed #CBD5E1 !important;
  border-radius: 12px !important;
  padding: 40px 20px !important;
  text-align: center !important;
  transition: border-color 0.2s ease, background 0.2s ease !important;
  cursor: pointer !important;
}

.drop-zone:hover,
.drop-zone.dragover {
  border-color: #4b85e6 !important;
  background: #F0F5FE !important;
}

.upload-icon {
  display: flex !important;
  justify-content: center !important;
  margin-bottom: 16px !important;
}

.upload-heading {
  font-size: 20px !important;
  font-weight: 700 !important;
  color: #1F2937 !important;
  margin-bottom: 8px !important;
}

.upload-text {
  font-size: 15px !important;
  color: #64748B !important;
  margin-bottom: 20px !important;
}

.upload-hint {
  font-size: 13px !important;
  color: #64748B !important;
  margin-top: 14px !important;
}

.btn {
  font-family: inherit !important;
  font-size: 15px !important;
  font-weight: 600 !important;
  border: none !important;
  border-radius: 8px !important;
  cursor: pointer !important;
  padding: 12px 24px !important;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease !important;
}

.btn-primary {
  background: linear-gradient(135deg, #9CA1E2 0%, #4b85e6 50%, #9CA1E2 100%) !important;
  color: #FFFFFF !important;
  box-shadow: 0 6px 16px rgba(75, 133, 230, 0.25) !important;
}

.btn-primary:hover {
  transform: translateY(-1px) !important;
  box-shadow: 0 8px 20px rgba(75, 133, 230, 0.35) !important;
}

.btn-primary:active {
  transform: translateY(0) !important;
}

.btn-primary:disabled {
  opacity: 0.6 !important;
  cursor: not-allowed !important;
  transform: none !important;
  box-shadow: none !important;
}

.btn-secondary {
  background: #FFFFFF !important;
  color: #4b85e6 !important;
  border: 1px solid #4b85e6 !important;
}

.btn-secondary:hover {
  background: #F0F5FE !important;
}

.btn-convert {
  width: 100% !important;
  padding: 16px !important;
  font-size: 16px !important;
  margin-bottom: 16px !important;
}

.conversion-workspace {
  width: 100% !important;
}

.selected-file-card,
.file-preview {
  display: flex !important;
  align-items: center !important;
  gap: 16px !important;
  background: #FFFFFF !important;
  border: 1px solid #E3E8F4 !important;
  border-radius: 12px !important;
  padding: 16px !important;
  margin-bottom: 16px !important;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.06) !important;
}

.file-icon {
  flex-shrink: 0 !important;
  width: 48px !important;
  height: 48px !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  background: #F0F5FE !important;
  border-radius: 10px !important;
}

.file-info {
  flex: 1 !important;
  min-width: 0 !important;
}

.file-name {
  font-size: 15px !important;
  font-weight: 600 !important;
  color: #1F2937 !important;
  word-break: break-word !important;
  overflow-wrap: break-word !important;
}

.file-size {
  font-size: 13px !important;
  color: #64748B !important;
  margin-top: 4px !important;
}

.btn-delete {
  flex-shrink: 0 !important;
  background: #FFFFFF !important;
  border: 1px solid #E3E8F4 !important;
  border-radius: 8px !important;
  padding: 8px !important;
  cursor: pointer !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  transition: background 0.15s ease, border-color 0.15s ease !important;
}

.btn-delete:hover {
  background: #FEF2F2 !important;
  border-color: #DC2626 !important;
}

.card-heading {
  font-size: 18px !important;
  font-weight: 700 !important;
  color: #1F2937 !important;
  margin-bottom: 20px !important;
}

.option-group {
  margin-bottom: 18px !important;
}

.option-group:last-child {
  margin-bottom: 0 !important;
}

.option-group label {
  display: block !important;
  font-size: 14px !important;
  font-weight: 600 !important;
  color: #1F2937 !important;
  margin-bottom: 8px !important;
}

.select-control,
.text-input {
  width: 100% !important;
  font-family: inherit !important;
  font-size: 15px !important;
  color: #1F2937 !important;
  background: #FFFFFF !important;
  border: 1px solid #CBD5E1 !important;
  border-radius: 8px !important;
  padding: 10px 12px !important;
  transition: border-color 0.15s ease, box-shadow 0.15s ease !important;
}

.select-control:focus,
.text-input:focus {
  outline: none !important;
  border-color: #4b85e6 !important;
  box-shadow: 0 0 0 3px rgba(75, 133, 230, 0.15) !important;
}

.option-hint {
  font-size: 12px !important;
  color: #64748B !important;
  margin-top: 6px !important;
}

.error-message {
  font-size: 14px !important;
  color: #DC2626 !important;
  background: #FEF2F2 !important;
  border: 1px solid #FECACA !important;
  border-radius: 8px !important;
  padding: 12px 14px !important;
  margin-top: 14px !important;
}

.results-card {
  padding: 28px !important;
}

.results-heading {
  font-size: 18px !important;
  font-weight: 700 !important;
  color: #1F2937 !important;
  margin-bottom: 22px !important;
  text-align: center !important;
}

.results-grid {
  display: grid !important;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)) !important;
  gap: 18px !important;
}

.result-card {
  background: #FFFFFF !important;
  border: 1px solid #E3E8F4 !important;
  border-radius: 12px !important;
  padding: 14px !important;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.06) !important;
  display: flex !important;
  flex-direction: column !important;
}

.result-thumb {
  width: 100% !important;
  background: #F5F7FC !important;
  border: 1px solid #E3E8F4 !important;
  border-radius: 8px !important;
  margin-bottom: 12px !important;
  overflow: hidden !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
}

.result-thumb img {
  width: 100% !important;
  height: auto !important;
  display: block !important;
}

.result-name {
  font-size: 13px !important;
  font-weight: 600 !important;
  color: #1F2937 !important;
  word-break: break-all !important;
  overflow-wrap: break-word !important;
  margin-bottom: 4px !important;
}

.result-meta {
  font-size: 12px !important;
  color: #64748B !important;
  margin-bottom: 12px !important;
}

.result-card .btn {
  width: 100% !important;
  padding: 10px !important;
  font-size: 14px !important;
}

.results-actions {
  margin-top: 26px !important;
  display: flex !important;
  justify-content: center !important;
  gap: 12px !important;
  flex-wrap: wrap !important;
}

.limitation-note {
  font-size: 13px !important;
  color: #64748B !important;
  background: #FFFFFF !important;
  border: 1px solid #E3E8F4 !important;
  border-radius: 10px !important;
  padding: 14px 16px !important;
  margin-top: 4px !important;
  line-height: 1.5 !important;
}

@media (max-width: 768px) {
  body {
    padding: 14px !important;
  }

  .card {
    padding: 20px !important;
  }

  .upload-card {
    padding: 22px !important;
  }

  .drop-zone {
    padding: 28px 16px !important;
  }

  .app-header {
    padding: 22px !important;
  }

  .app-header h1 {
    font-size: 22px !important;
  }

  .upload-heading {
    font-size: 18px !important;
  }

  .results-grid {
    grid-template-columns: 1fr !important;
  }

  .results-actions .btn {
    width: 100% !important;
  }
}

@media (max-width: 480px) {
  .btn-convert {
    font-size: 15px !important;
    padding: 14px !important;
  }

  .selected-file-card,
  .file-preview {
    gap: 12px !important;
    padding: 14px !important;
  }

  .file-icon {
    width: 40px !important;
    height: 40px !important;
  }
}