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(min-width:768px){.bottom-nav{top:0;bottom:0;left:0;right:auto;width:72px;flex-direction:column;justify-content:flex-start;padding-top:1.5rem;gap:var(--space-1);border-top:none;border-right:1px solid var(--color-border);padding-bottom:0}.bottom-nav-logo{display:flex;align-items:center;justify-content:center;padding:.5rem 0 1rem;cursor:pointer}.bottom-nav-logo img{width:32px;height:32px}.bottom-nav-tab{flex:none;padding:.75rem .5rem;font-size:.6rem}.nav-hint-anchor{top:0;bottom:0;inset-inline-start:100%;inset-inline-end:auto;align-items:center;padding-bottom:0;padding-inline-start:10px}.nav-hint-anchor--fin{justify-content:center}.nav-hint-anchor:after,.nav-hint-anchor:before{top:50%;bottom:auto;inset-inline-start:auto;margin:-8px 0 0;border-width:8px;border-top-color:transparent;border-inline-start-width:0}.nav-hint-anchor:before{inset-inline-end:100%;border-inline-end-color:color-mix(in srgb,var(--color-brand) 50%,var(--color-bg))}.nav-hint-anchor:after{inset-inline-end:calc(100% - 1px);margin-top:-7px;border-width:7px;border-top-color:transparent;border-inline-start-width:0;border-inline-end-color:color-mix(in srgb,var(--color-brand) 10%,var(--color-bg))}.app:has(~.bottom-nav){padding-left:72px}.app:has(~.bottom-nav) .header-back-btn{display:none}.header{position:fixed!important;top:0;left:0;right:0;width:auto!important;z-index:40;flex-direction:row!important;align-items:center;background:color-mix(in srgb,var(--color-bg) 95%,transparent);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:none;padding:0 1.5rem;min-height:56px}body:has(.bottom-nav) .header{left:72px}.header-row{display:contents!important}.header-marque{order:0}.header-page-bar{order:1;flex:1;min-width:0;margin:0 1rem;padding:0;background:none;border:0}.header-actions{order:2;margin-inline-start:auto}.header-title{flex:1!important;margin:0!important;font-size:.9rem!important;display:block!important;-webkit-line-clamp:unset!important;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}body:has(.bottom-nav) .header-logo-img{display:none!important}.header-actions{gap:1.25rem!important}.container{padding-bottom:2rem;padding-top:5rem;--gap-bloc:1.75rem}.deck-list{gap:var(--space-2)}.mini-kb{display:none}.card-button:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}}.math{direction:ltr;unicode-bidi:isolate;align-items:center;font-family:Cambria Math,Latin Modern Math,STIX Two Math,Georgia,serif;font-size:1.05em;line-height:1.2;white-space:nowrap;overflow-x:auto;vertical-align:middle}.math,.math-display{display:inline-flex;max-width:100%}.math-display{margin-inline:.15em;padding:.1em .35em;border-radius:var(--radius-sm);background:var(--color-bg-tertiary);font-size:1.12em;justify-content:safe center}.math-text{font-family:var(--font-arabic),var(--font-inter),system-ui,sans-serif;font-style:normal;font-size:.92em;padding-inline:.15em}.math-fn,.math-var{font-style:italic}.math-fn{font-style:normal;padding-inline-end:.1em}.math-op{margin:0 .25em}.math-space{width:.28em}.math-sub,.math-sup{font-size:.72em;line-height:0}.math-frac{display:inline-flex;flex-direction:column;align-items:center;vertical-align:middle;margin:0 .18em;font-size:.92em}.math-frac-num{border-bottom:1px solid}.math-frac-den,.math-frac-num{padding:0 .25em;line-height:1.15}.math-sqrt{display:inline-flex;align-items:stretch}.math-sqrt-sign{font-size:1.15em;line-height:1}.math-sqrt-body{border-top:1px solid;padding:.1em .15em 0 .1em}[dir=rtl] body,[dir=rtl] button,[dir=rtl] input,[dir=rtl] textarea{font-family:var(--font-arabic),var(--font-inter),system-ui,sans-serif}[dir=rtl] .mini-kb{direction:ltr}[dir=rtl] .header-marque:before{background:linear-gradient(15deg,color-mix(in srgb,var(--color-decor) calc(var(--decor-depart) * 100%),transparent) 0,color-mix(in srgb,var(--color-decor) calc(var(--decor-milieu) * 100%),transparent) 55%,transparent 100%)}[dir=rtl] .header-back-btn svg,[dir=rtl] .rtl-flip{transform:scaleX(-1)}[dir=rtl] .chapter-list,[dir=rtl] .deck-list{text-align:start}@media (min-width:768px){[dir=rtl] .bottom-nav{left:auto;right:0;border-right:none;border-left:1px solid var(--color-border)}[dir=rtl] .app:has(~.bottom-nav){padding-left:0;padding-right:72px}[dir=rtl] body:has(.bottom-nav) .header{left:0;right:72px}}:focus-visible{outline:3px solid var(--color-primary);outline-offset:2px;border-radius:var(--radius-xs);box-shadow:0 0 0 5px hsla(0,0%,100%,.35)}[role=button]:focus:not(:focus-visible),a:focus:not(:focus-visible),button:focus:not(:focus-visible){outline:none}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.update-banner{position:fixed;inset-block-end:0;inset-inline:0;z-index:90;display:flex;flex-wrap:wrap;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);padding-block-end:calc(var(--space-3) + env(safe-area-inset-bottom, 0px));background:var(--color-bg-secondary);border-block-start:1px solid var(--color-border);box-shadow:var(--shadow-lg);color:var(--color-text);font-size:.875rem}.update-banner-text{flex:1 1 12rem;text-align:start}.update-banner-primary,.update-banner-secondary{padding:var(--space-2) var(--space-3);border-radius:var(--radius-md);font-size:.875rem;font-weight:600;cursor:pointer;flex:0 0 auto;white-space:nowrap}.update-banner-primary{background:var(--color-primary);border:1px solid var(--color-primary);color:var(--color-bg-secondary)}.update-banner-primary:hover{background:var(--color-primary-hover)}.update-banner-secondary{background:transparent;border:1px solid var(--color-border);color:var(--color-text-muted)}.update-block{position:fixed;inset:0;z-index:110;display:flex;align-items:center;justify-content:center;padding:var(--space-6);background:var(--color-bg)}.update-block-card{inline-size:min(28rem,100%);padding:var(--space-6);border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-bg-secondary);box-shadow:var(--shadow-lg);text-align:start}.update-block-title{margin-block-end:var(--space-3);font-size:1.25rem;font-weight:700;color:var(--color-text)}.update-block-text{margin-block-end:var(--space-4);color:var(--color-text-secondary);line-height:1.6}.update-block-action{inline-size:100%;padding:var(--space-3) var(--space-4);border:1px solid var(--color-primary);border-radius:var(--radius-md);background:var(--color-primary);color:var(--color-bg-secondary);font-weight:600;cursor:pointer}.update-block-action:hover{background:var(--color-primary-hover)}.boot-status{position:fixed;inset-block-start:0;inset-inline:0;z-index:89;display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:var(--space-3);padding:var(--space-2) var(--space-4);padding-block-start:calc(var(--space-2) + env(safe-area-inset-top, 0px));background:var(--color-bg-secondary);border-block-end:1px solid var(--color-border);box-shadow:var(--shadow-md);color:var(--color-text-secondary);font-size:.8125rem}.boot-status-error{color:var(--color-text)}.boot-status-text{text-align:start}.boot-status-action{padding:var(--space-1) var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background:transparent;color:var(--color-primary);font-size:.8125rem;font-weight:600;cursor:pointer}.boot-status-action:hover{background:var(--color-bg)}.dark button.landing-cta,button.landing-cta{display:block;width:100%;min-height:52px;background:var(--color-brand);color:#0b1600;font-size:1.1rem;font-weight:700;border:none;box-shadow:var(--shadow-sm)}.dark button.landing-cta:hover,button.landing-cta:hover{background:var(--color-brand);color:#0b1600;filter:brightness(.93);box-shadow:var(--shadow-md)}.dark button.landing-cta:focus-visible,button.landing-cta:focus-visible{outline:2px solid var(--color-text);outline-offset:2px}.dark button.landing-cta:disabled,.dark button.landing-cta:disabled:hover,button.landing-cta:disabled,button.landing-cta:disabled:hover{opacity:.55;cursor:default;filter:none;transform:none;box-shadow:none}.link-btn,button.link-btn{background:none!important;border:none!important;padding:0!important;min-width:0!important;flex:none!important;border-radius:0!important;box-shadow:none!important;color:var(--color-brand-deep);text-decoration:underline;text-underline-offset:.18em;cursor:pointer;font-size:inherit;font-weight:500;line-height:inherit;transform:none!important}.link-btn:hover,button.link-btn:hover{background:none!important;color:var(--color-brand-deep);filter:brightness(.8)}.dark .link-btn:hover,.dark button.link-btn:hover{filter:brightness(1.15)}button.link-btn:disabled,button.link-btn:disabled:hover{opacity:.5;cursor:default;filter:none}.hors-vue{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}.password-field{position:relative}.password-field input{padding-inline-end:2.9rem}.password-field input::-ms-clear,.password-field input::-ms-reveal{display:none}button.password-eye{position:absolute;inset-inline-end:.55rem;top:50%;transform:translateY(-50%);display:flex;align-items:center;justify-content:center;width:2.1rem;height:2.1rem;min-width:0!important;flex:none!important;padding:0!important;background:transparent!important;border:none!important;border-radius:999px!important;box-shadow:none!important;color:var(--color-text-muted);cursor:pointer}button.password-eye:hover{color:var(--color-text);background:var(--color-bg-secondary)!important}.or-separator{display:flex;align-items:center;gap:.75rem;color:var(--color-text-muted);font-size:.85rem;margin-block:.25rem}.or-separator:after,.or-separator:before{content:"";flex:1;height:1px;background:var(--color-border)}.google-btn{position:relative;display:flex;align-items:center;justify-content:center;gap:.6rem;width:100%;min-height:52px;padding:0 1rem;border:1px solid var(--color-border);border-radius:.75rem;background:var(--color-bg-secondary);color:var(--color-text);font-size:1rem;font-weight:600;box-shadow:var(--shadow-sm);overflow:hidden;cursor:pointer}.google-btn:hover{border-color:var(--color-border-hover)}.google-btn-overlay{position:absolute;top:0;left:0;width:100%;height:100%;opacity:0;overflow:hidden}.lang-menu{position:relative}.lang-menu-btn{gap:.35rem!important;font-size:.8rem;font-weight:600!important;white-space:nowrap}.lang-menu-btn-compact{gap:.25rem!important;padding-inline:0!important;min-width:0!important}.settings-lang .lang-menu-btn{width:100%;justify-content:flex-start;background:var(--color-bg-tertiary)!important;border-radius:.5rem!important;padding:.6rem .75rem!important;font-size:.875rem}.settings-lang .lang-menu-btn .lang-menu-chevron{margin-inline-start:auto}.lang-menu-btn .lang-menu-chevron{transition:transform .15s}.lang-menu-btn[aria-expanded=true] .lang-menu-chevron{transform:rotate(180deg)}.lang-menu-list{position:absolute;inset-inline-end:0;top:calc(100% + .4rem);margin:0;padding:.25rem;list-style:none;width:-moz-max-content;width:max-content;min-width:8rem;max-width:min(14rem,calc(100vw - 2rem));background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:.6rem;box-shadow:var(--shadow-md);z-index:60}.lang-menu-list button{display:flex;align-items:center;gap:.6rem;width:100%;min-width:0!important;padding:.55rem .7rem!important;background:transparent!important;border:none!important;border-radius:.4rem!important;box-shadow:none!important;text-align:start;font-size:.95rem;font-weight:500;color:var(--color-text);transform:none!important}.lang-menu-list button:hover{background:var(--color-bg-tertiary)!important}.lang-menu-list button[aria-selected=true]{color:var(--color-brand-deep);font-weight:700}.hover\:underline:hover{text-decoration-line:underline}.disabled\:opacity-50:disabled{opacity:.5}