.pdf-tool-stack {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.pdf-upload-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.pdf-card,
.pdf-result-panel,
.pdf-summary-bar,
.pdf-help-note {
  border: 1px solid var(--color-border);
  border-radius: 14px;
  background: var(--color-bg-secondary);
}

.pdf-card,
.pdf-result-panel {
  padding: 18px;
}

.pdf-card-title {
  margin: 0 0 6px;
  font-size: 18px;
}

.pdf-card-copy {
  margin: 0 0 14px;
  color: var(--color-text-muted);
  font-size: 13px;
}

.pdf-file-panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pdf-file-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.pdf-stat {
  padding: 12px;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
}

.pdf-stat-value {
  font-size: 18px;
  font-weight: 800;
  color: var(--color-text);
}

.pdf-stat-label {
  margin-top: 4px;
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.pdf-summary-bar,
.pdf-help-note {
  padding: 14px 16px;
}

.pdf-summary-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  justify-content: space-between;
}

.pdf-order-preview {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.pdf-order-chip {
  padding: 8px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text-secondary);
}

.pdf-order-chip-a {
  border-color: rgba(59, 130, 246, 0.35);
  color: #60a5fa;
}

.pdf-order-chip-b {
  border-color: rgba(16, 185, 129, 0.35);
  color: #34d399;
}

.pdf-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pdf-loading-box {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-secondary);
}

.pdf-result-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

@media (max-width: 860px) {
  .pdf-upload-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .pdf-file-meta {
    grid-template-columns: 1fr;
  }

  .pdf-actions .btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .pdf-card,
  .pdf-result-panel {
    padding: 14px;
  }

  .pdf-card-title {
    font-size: 16px;
  }

  .pdf-stat-value {
    font-size: 16px;
  }

  .pdf-summary-bar {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }
}