:root{
  --pdfio-text:#0f172a;
  --pdfio-muted:#64748b;
  --pdfio-border:#e5e7eb;
  --pdfio-accent:#16a34a;
  --pdfio-bg:#ffffff;
}
.pdfio-wrap{max-width:1100px;margin:0 auto;padding:60px 18px;}
.pdfio-hero{padding:30px 0;}
.pdfio-badge{display:inline-block;border:1px solid var(--pdfio-border);border-radius:999px;
  padding:6px 12px;color:var(--pdfio-muted);font-size:12px;margin-bottom:14px;}
.pdfio-hero h1{font-size:40px;letter-spacing:-0.02em;margin:0 0 10px 0;color:var(--pdfio-text);}
.pdfio-sub{color:var(--pdfio-muted);font-size:16px;margin:0 0 22px 0;max-width:70ch;}
.pdfio-alert{border:1px solid var(--pdfio-border);border-radius:14px;padding:14px 16px;color:var(--pdfio-text);}
.pdfio-file{display:flex;justify-content:space-between;gap:14px;align-items:center;
  border:1px solid var(--pdfio-border);border-radius:16px;padding:14px 16px;margin:18px 0 22px 0;}
.pdfio-file-meta{display:flex;align-items:center;gap:12px;}
.pdfio-file-dot{width:10px;height:10px;border-radius:50%;background:var(--pdfio-accent);}
.pdfio-file-title{font-weight:600;}
.pdfio-file-path{color:var(--pdfio-muted);font-size:13px;word-break:break-all;}
.pdfio-link{color:var(--pdfio-text);text-decoration:none;border:1px solid var(--pdfio-border);
  padding:10px 12px;border-radius:12px;}
.pdfio-link:hover{border-color:#cbd5e1;}
.pdfio-grid{display:grid;grid-template-columns:repeat(3, 1fr);gap:14px;}
.pdfio-card{display:block;border:1px solid var(--pdfio-border);border-radius:18px;padding:18px 18px;
  text-decoration:none;color:var(--pdfio-text);background:var(--pdfio-bg);
  transition:transform .12s ease, border-color .12s ease, box-shadow .12s ease;}
.pdfio-card:hover{transform:translateY(-2px);border-color:#cbd5e1;box-shadow:0 10px 24px rgba(15,23,42,.06);}
.pdfio-card-title{font-weight:700;font-size:16px;margin-bottom:6px;}
.pdfio-card-desc{color:var(--pdfio-muted);font-size:13px;line-height:1.4;}
.pdfio-card-secondary{background:#f8fafc;}
@media(max-width:900px){.pdfio-grid{grid-template-columns:1fr 1fr;}}
@media(max-width:620px){
  .pdfio-hero h1{font-size:30px;}
  .pdfio-grid{grid-template-columns:1fr;}
  .pdfio-file{flex-direction:column;align-items:flex-start;}
}