.document-body .document-main { width: min(1600px, calc(100% - 40px)); margin: 0 auto; padding: 42px 0 20px; }
.document-heading { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; margin: 0 0 26px; }
.document-heading h1 { margin: 0; font-size: clamp(25px, 3vw, 38px); line-height: 1.2; }
.document-tools { display: inline-flex; align-items: center; gap: 12px; }
.document-tools button, .document-top { min-width: 40px; height: 40px; padding: 0 12px; border: 1px solid var(--glass-border); border-radius: 12px; background: rgba(255,255,255,.06); color: #fff; font-size: 18px; cursor: pointer; }
.document-tools button:hover, .document-top:hover { border-color: var(--accent-cyan); }
.document-counter { min-width: 55px; text-align: center; color: var(--text-muted); }
.document-page { position: relative; margin: 0 auto 24px; max-width: 1600px; background: #fff; box-shadow: 0 20px 50px rgba(0,0,0,.4); scroll-margin-top: 100px; }
.document-page img { display: block; width: 100%; height: auto; }
.document-page-number { position: absolute; right: 10px; bottom: 10px; padding: 4px 8px; border-radius: 5px; background: rgba(2,6,12,.7); color: #fff; font-size: 11px; }
.document-top { position: fixed; right: 18px; bottom: 18px; z-index: 900; border-radius: 50%; background: #182c42; }
@media (max-width: 600px) {
  .document-body .document-main { width: calc(100% - 16px); padding-top: 20px; }
  .document-heading { padding: 0 8px; margin-bottom: 16px; }
  .document-heading h1 { font-size: 22px; }
  .document-page { margin-bottom: 14px; }
  .document-page-number { font-size: 9px; }
}