/*
 * Shared responsive source of truth.
 *
 * Keep only cross-surface geometry and input behavior here. Component-specific
 * breakpoints belong beside their component so later files do not need repair layers.
 */@media (max-width: 1080px){:root{--side-toggle-width:88px;--side-toggle-height:58px;--side-toggle-right:10px;--library-toggle-height:var(--side-toggle-height);--side-toggle-top:10px}.layout,.selected,.backup-grid{grid-template-columns:1fr}.theme-toggle{top:calc(var(--side-toggle-top) + var(--library-toggle-height) + var(--side-toggle-gap));right:var(--side-toggle-right)}.library-selector-shell{top:var(--side-toggle-top);right:var(--side-toggle-right);width:var(--side-toggle-width)}.system-toggle{top:var(--side-toggle-top);right:var(--side-toggle-right)}.sidebar{position:static}.quiz-topbar{flex-direction:column;align-items:stretch}.quiz-setup-actions{grid-template-columns:1fr}.quiz-setup-buttons{justify-content:stretch}.quiz-setup-side{justify-items:stretch}.quiz-difficulty-control{justify-content:center;width:100%}.quiz-setup-buttons > button{width:100%}.empty-guide-steps{grid-template-columns:1fr}.library-selector-option[data-library-help]::after{right:auto;left:0;top:calc(100% + 8px);width:min(270px, calc(100vw - 24px));transform:translateY(-4px)}.library-selector-option[data-library-help]:hover::after,.library-selector-option[data-library-help]:focus-visible::after{transform:translateY(0)}.study-timer-controls{grid-template-columns:1fr}.drive-share-step{align-items:stretch;flex-direction:column}.drive-share-step button{width:100%}.drive-share-action-stack{width:100%;justify-items:stretch}.shared-pack-status-inline{max-width:none}.anatomy-entry-card{min-height:460px}.anatomy-quiz-actions{grid-template-columns:1fr}.consent-banner-body{grid-template-columns:1fr}.consent-banner{left:50%;right:auto;bottom:16px;width:min(1120px, calc(100vw - 32px));transform:translateX(-50%);padding:14px;border-radius:18px}.consent-banner-main{grid-template-columns:42px minmax(0, 1fr);gap:12px;align-items:start}.consent-banner-icon{width:42px;height:42px;border-radius:13px}.consent-banner-icon svg{width:23px;height:23px}.consent-banner-actions{grid-column:1/-1;justify-content:stretch;gap:8px}.consent-banner-actions .btn-primary{flex:1 1 auto;min-width:0}.consent-details-link{min-width:88px;padding-inline:8px}.consent-detail-row{grid-template-columns:1fr;gap:3px}}@media (max-width: 640px){:root{--side-toggle-width:82px;--side-toggle-height:54px;--library-toggle-height:var(--side-toggle-height)}.embedded-note-head,.study-timer-head{align-items:flex-start;flex-direction:column}.anatomy-entry-face{padding:0}.theme-toggle{width:var(--side-toggle-width);height:var(--side-toggle-height);min-height:var(--side-toggle-height);padding:6px;gap:5px;border-radius:14px}.library-selector-shell{top:var(--side-toggle-top);right:var(--side-toggle-right);width:var(--side-toggle-width)}.system-toggle{top:var(--side-toggle-top);right:var(--side-toggle-right)}.library-selector-switch .mobile-switch-mechanism{transform:translate(-50%, -50%) scale(1.06)}.theme-toggle-ui{width:30px;height:18px}.theme-toggle-thumb{width:10px;height:10px}.theme-toggle[aria-pressed="true"] .theme-toggle-thumb{transform:translateX(12px)}.theme-toggle-copy{min-width:0}.theme-toggle-title{font-size:9px}.theme-toggle-value{font-size:8px}.library-import-progress-panel{right:max(12px, env(safe-area-inset-right));left:max(12px, env(safe-area-inset-left));bottom:max(12px, env(safe-area-inset-bottom));width:auto;border-radius:16px}}@media (max-width: 600px) and (pointer: coarse){html,body{max-width:100%;overflow-x:hidden}.wrap{width:100%;max-width:100%;padding:calc(env(safe-area-inset-top, 0px) + 10px) 10px 18px}.hero.has-gqb-logo-game{min-height:0;height:0;margin:0;padding:0;border:0;border-radius:0;background:transparent !important;box-shadow:none !important;overflow:visible}.hero.has-gqb-logo-game::after,.hero.has-gqb-logo-game::before,.hero.has-gqb-logo-game > h1,.hero.has-gqb-logo-game > p,.hero.has-gqb-logo-game > .pill-row{display:none !important}.hero.has-gqb-logo-game > .gqb-logo-game-host:not(.is-docked){display:none !important}.layout{gap:10px}.card,.sidebar,.main{border-radius:18px}.main,.sidebar{padding:12px}.library-utility-stack,#selectedBadges{display:none !important}.tabs{gap:8px;padding-right:64px;overflow-x:auto;-webkit-overflow-scrolling:touch}.tab-btn{min-height:42px;padding:10px 14px;white-space:nowrap}.theme-toggle,.system-toggle,.library-selector-shell{display:none !important}#imageModal{padding:0 !important;align-items:stretch;justify-content:stretch}#imageModal .viewer{width:100vw;height:100dvh;max-width:none;max-height:none;border:0;border-radius:0}#imageModal .viewer-toolbar{top:calc(env(safe-area-inset-top, 0px) + 10px);right:calc(env(safe-area-inset-right, 0px) + 10px);left:calc(env(safe-area-inset-left, 0px) + 10px)}#imageModal .viewer-toolbar-main{max-width:calc(100vw - 20px - env(safe-area-inset-left, 0px) - env(safe-area-inset-right, 0px))}#imageModal .viewer-toolbar button{min-height:42px}#imageModal .viewer-enhance-panel{max-width:min(100%, 320px)}}/* Touch compatibility refinements */#viewerStage{touch-action:none;overscroll-behavior:contain}button,.btn,.chip,.sort-trigger,.sort-option,.tab-btn,.group-badge,input[type="range"],input[type="text"],input[type="search"],textarea,select,label[for]{touch-action:manipulation}