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(width<=760px){body{background:var(--canvas)}.sidebar{width:min(19rem,86vw);transition:transform .18s;transform:translate(-102%)}.sidebar--open{transform:translate(0)}.sidebar__close{display:grid}.app-shell__main{margin-left:0}.mobile-header{z-index:20;border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#fbf8f1e6;grid-template-columns:2.6rem 1fr 2.6rem;place-items:center;height:3.65rem;padding:0 .65rem;display:grid;position:sticky;top:0}.bottom-nav{z-index:20;height:calc(3.9rem + env(safe-area-inset-bottom));border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#fbf8f1f0;grid-template-columns:repeat(4,1fr);display:grid;position:fixed;bottom:0;left:0;right:0}.bottom-nav a{color:var(--muted);align-content:center;place-items:center;gap:.16rem;font-size:.58rem;display:grid}.bottom-nav a.active{color:var(--coral-deep)}.page{width:calc(100% - 1.5rem);padding:1.35rem 0 5.5rem}.page-heading{flex-direction:column;align-items:start;gap:1rem}.page-heading .upload-control,.page-heading .upload-control button{width:100%}.metric-grid{gap:.5rem}.metric-grid article{padding:.8rem}.callout{grid-template-columns:auto 1fr}.callout .primary-button{grid-column:span 2}.book-grid,.book-grid--wide{grid-template-columns:1fr}.book-grid:not(.book-grid--wide) .book-card,.book-card{grid-template-columns:6.8rem 1fr}.book-cover{min-height:10rem}.book-hero{grid-template-columns:6.5rem 1fr;align-items:start;gap:1rem}.book-cover--large{min-height:9.5rem}.book-hero__copy h1{font-size:1.6rem}.book-hero__copy .button-row{grid-column:span 2}.analysis-stats,.range-form{grid-template-columns:1fr}.preview-list__intro{gap:.3rem;display:grid}.preview-list article{grid-template-columns:1fr auto}.preview-list__actions{grid-column:span 2}.auth-page{grid-template-columns:1fr}.auth-story{display:none}.auth-panel{min-height:100vh;padding:1.5rem}.assessment-page header{margin:1.5rem 0}.assessment-actions{grid-template-columns:1fr}.inbox-list article{grid-template-columns:auto 1fr}.inbox-list article>.secondary-button{grid-column:span 2}.vocab-table{background:0 0;border:0;overflow:visible}.vocab-table__head{display:none}.vocab-table article{border:1px solid var(--line);background:var(--paper);border-radius:.75rem;grid-template-columns:1fr auto;margin-bottom:.5rem}.probability{grid-column:span 2}.reader-nav{display:none}.selection-sheet{width:100%;padding-bottom:calc(1rem + env(safe-area-inset-bottom));border-radius:1.2rem 1.2rem 0 0;bottom:0;right:0;transform:none}.selection-sheet__choices{grid-template-columns:repeat(2,1fr)}.reader-footer{padding-bottom:env(safe-area-inset-bottom)}.reader-page{grid-template-rows:3.6rem minmax(0, 1fr) calc(3.2rem + env(safe-area-inset-bottom))}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}