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summary::-webkit-details-marker{display:none}.mobile-subject-group-icon{width:34px;height:34px;color:var(--teal);place-items:center;display:grid}.mobile-subject-group-icon svg{stroke-width:1.7px;width:29px;height:29px}.mobile-subject-group-copy{gap:3px;display:grid}.mobile-subject-group-copy strong{color:#172a24;font-size:14px;line-height:1.2}.mobile-subject-group-copy small{color:#718079;text-overflow:ellipsis;white-space:nowrap;font-size:9px;line-height:1.3;overflow:hidden}.mobile-subject-group-index{color:currentColor;white-space:nowrap;background:#ffffff8a;border-radius:999px;padding:4px 6px;font-size:9px;font-weight:850}.mobile-subject-group-chevron{width:16px;height:16px;transition:transform .16s}.mobile-subject-group[open] .mobile-subject-group-chevron{transform:rotate(90deg)}.mobile-subject-group>nav{grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;padding:0 12px 10px;display:grid}.mobile-subject-group>nav a{min-width:0;min-height:44px;color:inherit;text-align:center;background:#fff;border:1px solid;border-radius:9px;justify-content:center;align-items:center;padding:6px 9px;font-size:11px;font-weight:800;line-height:1.25;display:flex}.mobile-subject-group.subject-band-foundation,.mobile-subject-group.subject-band-languages{color:#0c827b}.mobile-subject-group.subject-band-science,.mobile-subject-group.subject-band-specialized,.mobile-subject-group.subject-band-other{color:#1765d1}.mobile-subject-group.subject-band-society{color:#6846d7}.mobile-subject-group.subject-band-arts{color:#dc6813}.subject-jump-hint{color:#7a8882;text-align:center;justify-content:center;align-items:center;gap:5px;margin:0;font-size:10px;line-height:1.3;display:flex}.subject-jump-hint svg{flex:none;width:14px;height:14px}.reader-brand{font-size:17px}.book-stage{min-height:0}.reader-page-toolbar{grid-template-rows:auto auto;grid-template-columns:minmax(0,1fr) auto;gap:6px;padding:8px}.reader-app[data-reader-app] .reader-toolbar-left{grid-area:1/1;justify-content:flex-start}.reader-app[data-reader-app] .reader-toolbar-right{grid-area:1/2;justify-content:flex-end}.reader-app[data-reader-app] .reader-toolbar-center{grid-area:2/1/auto/-1;justify-content:space-between;width:100%}.reader-toolbar-section{gap:6px}.reader-page-toolbar button,.reader-toolbar-link{width:38px}.reader-page-toolbar .mode-row.segmented{grid-template-columns:repeat(3,36px)}.reader-page-toolbar .mode-row.segmented button{width:36px}.reader-page-toolbar input[type=number]{width:52px}.reader-link-menu{width:98px;min-width:82px}.reader-link-menu summary{padding-left:8px;padding-right:8px;font-size:12px}}@media (width<=420px){.reader-brand{gap:8px;font-size:16px}.reader-page-toolbar{grid-template-rows:auto auto;grid-template-columns:minmax(0,1fr) auto}.reader-toolbar-left{grid-area:1/1;justify-content:flex-start}.reader-toolbar-right{grid-area:1/2;justify-content:flex-end}.reader-toolbar-center{grid-area:2/1/auto/-1;justify-content:space-between;width:100%}.reader-page-toolbar label{gap:0;font-size:0}.reader-page-toolbar label input{font-size:14px}.reader-page-toolbar button,.reader-toolbar-link{width:34px;height:34px}.reader-page-toolbar .mode-row.segmented{grid-template-columns:repeat(3,34px)}.reader-page-toolbar .mode-row.segmented button{width:34px}.reader-link-menu{flex:auto;width:auto;min-width:0}.reader-brand-mark{width:32px;height:32px}.reader-brand-mark svg{width:30px;height:30px}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}