/* Mobile reading mode: the page remains clear until the reader asks for navigation. */
.mobile-menu-toggle{display:none}
.library{position:relative}
.library-top-action{position:absolute;z-index:2;top:0;right:0}
.library-welcome{margin:7px 0 0;color:#5f6e64;font-size:14px}
.library .section-head{padding-right:124px}
@media (max-width:650px){
  .app-shell.reader-active{grid-template-rows:minmax(0,1fr);gap:0;padding:12px}
  .app-shell.reader-active .read{min-height:0;grid-template-rows:minmax(0,1fr)}
  .app-shell.reader-active .reader-frame{height:100%;max-width:none;margin:0;border-radius:16px}
  .app-shell.reader-active .reader-pages{padding:10px;justify-content:flex-start}
  .app-shell.reader-active .reader-cover-page,
  .app-shell.reader-active .reader-pages img{max-height:min(56svh,520px);width:auto;max-width:100%;object-fit:contain}
  .app-shell.reader-active .reader-controls{width:100%;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;padding:12px 0 2px}
  .app-shell.reader-active .reader-controls button{width:100%;min-width:0;padding:10px 7px;font-size:13px}
  .app-shell.reader-active .reader-controls .reader-fullscreen{grid-column:1/-1}
  .app-shell.reader-active .bottom-nav{position:fixed;z-index:30;left:12px;right:12px;bottom:max(12px,env(safe-area-inset-bottom));transform:translateY(calc(100% + 28px));opacity:0;pointer-events:none;transition:transform .22s ease,opacity .18s ease;box-shadow:0 16px 38px rgba(18,37,31,.24)}
  .app-shell.reader-active.menu-open .bottom-nav{transform:translateY(0);opacity:1;pointer-events:auto}
  .mobile-menu-toggle{position:fixed;z-index:31;right:18px;bottom:max(18px,calc(env(safe-area-inset-bottom) + 8px));display:grid;width:48px;height:48px;place-items:center;border:1px solid rgba(255,255,255,.5);border-radius:50%;background:#173f30;color:#fff;box-shadow:0 8px 24px rgba(18,37,31,.3);font-size:20px;line-height:1}
  .mobile-menu-toggle[hidden]{display:none}
  .app-shell.reader-active.menu-open .mobile-menu-toggle{bottom:calc(max(12px,env(safe-area-inset-bottom)) + 78px);background:#fff;color:#173f30}
}