:root {
  --pdf-surface: #ffffff;
  --pdf-surface-2: #f7f9fc;
  --pdf-border: #e5e7eb;
  --pdf-strong: #172a4d;
}
:root[data-theme="dark"] {
  --pdf-surface: #111827;
  --pdf-surface-2: #111827;
  --pdf-border: #1f2937;
  --pdf-strong: #eef2ff;
}
.upload-panel{border:1px solid var(--pdf-border);background:var(--pdf-surface);border-radius:24px;box-shadow:0 18px 40px rgba(15,23,42,.08);}
.upload-dropzone{border:2px dashed var(--pdf-border);border-radius:20px;min-height:240px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:border-color .2s,background .2s;}
.upload-dropzone:hover{border-color:var(--primary);background:var(--primary-soft);}
.upload-dropzone:focus-visible{outline:3px solid rgba(37,99,235,.3);}
.pdf-action-panel{background:var(--surface-2);border:1px solid var(--border);border-radius:20px;}
.pdf-quick-card{background:var(--pdf-surface-2);border:1px solid var(--pdf-border);transition:transform .2s ease,box-shadow .2s ease;}
.pdf-quick-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.pdf-category-icon{width:42px;height:42px;border-radius:14px;background:var(--primary-soft);display:flex;align-items:center;justify-content:center;color:var(--primary);}
#pdf-dropzone input[type="file"]{display:none;}
#pdf-file-name{min-width:160px;}
.card-tool .card-text{min-height:48px;}
@media(max-width:991.98px){.upload-panel{padding:1rem!important;}.pdf-action-panel{padding:1rem!important;}}