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0}.navigation-hint{opacity:0;flex-shrink:0;width:16px;height:16px;margin-left:auto}.navigation-hint.is-pending{opacity:1}.navigation-spinner{border:1.5px solid;border-right:1.5px solid #0000;border-radius:50%;width:16px;height:16px;display:block}.navigation-hint.is-pending .navigation-spinner{animation:spin .8s linear infinite}.page-enter{animation:content-enter .22s ease-out}.subject-content{min-width:0;animation:content-enter .18s ease-out}.page-title p,.prose p,.question-stimulus,.topic-card p{max-width:70ch}.question-text,.reading-passage{font-size:1.125rem}.progress>span{transition:width .4s ease-out}@keyframes content-enter{0%{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}@media (prefers-reduced-motion:no-preference){.btn,.sidebar nav a,.subject-nav a,.text-size-toggle,.theme-toggle{transition:background-color .16s,color .16s,border-color .16s,transform .16s}.btn:hover:not(:disabled){transform:translateY(-1px)}.btn:active:not(:disabled){transform:translateY(0)}.topic-card{transition:border-color .18s,box-shadow .18s}.topic-card:hover{border-color:var(--line-strong);box-shadow:0 5px 20px var(--ink)}@supports (color:color-mix(in lab,red,red)){.topic-card:hover{box-shadow:0 5px 20px color-mix(in srgb,var(--ink) 4%,transparent)}}details[open]>:not(summary){animation:content-enter .18s ease-out}}@media (max-width:1100px){.metrics-strip{grid-template-columns:1fr}.metric+.metric{border-left:0;border-top:1px solid var(--line)}.topbar .mode-pill{display:none}}@media (max-width:720px){.topbar{flex-wrap:wrap;gap:8px;height:auto;padding-top:10px;padding-bottom:10px}.topbar-right{gap:6px;margin-left:auto}.breadcrumb{min-width:0}.breadcrumb strong{overflow-wrap:anywhere}.sidebar{max-width:calc(100vw - 36px)}.topic-grid{grid-template-columns:1fr}.history-row{flex-wrap:wrap}.history-score{margin-left:0}.app-footer{flex-wrap:wrap;gap:10px}}@media (max-width:480px){.main-content{padding-left:18px;padding-right:18px}.subject-toolbar{align-items:flex-start}.subject-nav{gap:6px}.subject-nav a{padding:9px 11px}.subject-toolbar .refresh-data{margin-left:auto}.practice-panel{padding:24px}.demo-banner{padding-left:18px;padding-right:18px}}@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}