:root{--nav-size:54px;--nav-control-size:38px;--border-radius:var(--radius-sm,8px);--speed:.22s}.a-logo{cursor:pointer;color:var(--text-primary);height:var(--nav-control-size);align-items:center;gap:8px;font-size:20px;font-weight:600;text-decoration:none;transition:color .2s;display:flex}.a-logo:hover{color:var(--text-inverse)}.a-logo:hover .logo-text{color:var(--nav-accent)}.logo-image{filter:none;width:26px;height:26px;transition:filter .2s}.a-logo:hover .logo-image{filter:brightness(1.1)}.logo-text{letter-spacing:.3px;color:var(--nav-accent);font-weight:500;transition:color .2s}.navbar{z-index:1100;background-color:color-mix(in srgb, var(--surface-primary,var(--bg-secondary)) 88%, transparent);width:100%;height:var(--nav-offset,var(--nav-size));padding:env(safe-area-inset-top,0px) max(2rem,env(safe-area-inset-right,0px)) 0 max(2rem,env(safe-area-inset-left,0px));border-bottom:1px solid var(--border-color);box-sizing:border-box;-webkit-backdrop-filter:blur(18px)saturate(150%);align-items:center;transition:background-color .3s,border-color .3s;display:flex;position:fixed;top:0;left:0;right:0}.navbar-nav{flex-direction:row;justify-content:flex-start;align-items:center;width:100%;height:100%;display:flex}.nav-items-right{align-items:center;gap:6px;margin-left:auto;display:flex}.nav-auth-actions{height:var(--nav-control-size);align-items:center;gap:6px;display:flex}.nav-auth-button{cursor:pointer;height:var(--nav-control-size);letter-spacing:.02em;box-sizing:border-box;color:var(--text-primary);border:1px solid var(--border-color);background:var(--bg-primary);white-space:nowrap;border-radius:8px;justify-content:center;align-items:center;padding:0 11px;font-size:12px;font-weight:700;line-height:1;text-decoration:none;transition:color .2s,background-color .2s,border-color .2s;display:inline-flex}.nav-auth-button:hover{color:var(--nav-accent);border-color:var(--nav-accent);background:var(--bg-tertiary)}.nav-auth-button--primary{border-color:var(--nav-accent);color:#fff;background:var(--nav-accent);margin-left:0}.nav-auth-button--primary:hover{color:#fff;border-color:var(--nav-accent-hover);background:var(--nav-accent-hover);filter:none}.nav-divider{background-color:var(--border-color);flex-shrink:0;width:1px;height:26px;margin:0 20px}.nav-links{align-items:center;gap:4px;display:flex}.nav-link-solid{cursor:pointer;height:var(--nav-control-size);color:var(--text-primary);white-space:nowrap;box-sizing:border-box;background:0 0;border:none;border-radius:10px;justify-content:center;align-items:center;padding:0 11px;font-size:14px;font-weight:500;text-decoration:none;transition:all .2s;display:flex;position:relative}.nav-link-solid:hover{color:var(--nav-accent);background-color:var(--bg-tertiary)}.nav-link-solid:after{display:none}.nav-link-solid.active{color:var(--nav-accent);background-color:color-mix(in srgb, var(--nav-accent) 10%, transparent);font-weight:600}.mobile-nav-dock{display:none}.nav-link-solid.active:hover{background-color:var(--bg-hover);color:var(--nav-accent-hover)}.nav-item{justify-content:center;align-items:center;margin:0;padding:0;font-size:14px;display:flex;position:relative}.icon{color:inherit;fill:currentColor;transition:color .15s}.nav-icon-with-badge{justify-content:center;align-items:center;display:inline-flex;position:relative}.nav-badge{background:var(--accent-danger);color:#fff;border:1px solid var(--overlay-light);box-sizing:border-box;border-radius:10px;min-width:15px;height:15px;padding:0 4px;font-size:10px;font-weight:700;line-height:15px;position:absolute;top:-5px;right:-5px}.nav-item .icon-button{width:var(--nav-control-size);height:var(--nav-control-size);border:1px solid var(--border-color);background:var(--bg-primary);color:var(--text-secondary);cursor:pointer;box-sizing:border-box;border-radius:8px;justify-content:center;align-items:center;padding:0;transition:background-color .15s,color .15s,border-color .15s;display:inline-flex}.nav-item .icon-button .icon,.nav-item .icon-button .MuiSvgIcon-root{width:20px;height:20px;color:inherit;fill:currentColor;font-size:20px!important}.nav-item .icon-button .nav-icon-with-badge>.icon{width:22px;height:22px;font-size:22px!important}.nav-item .icon-button:hover{background:var(--bg-tertiary);border-color:var(--border-color-hover);color:var(--nav-accent)}.nav-item .icon-button:hover .icon,.nav-item .icon-button:hover .MuiSvgIcon-root{color:inherit;fill:currentColor}.nav-item .icon-button:has(.navigation-profile-image){width:auto;height:auto;color:var(--text-primary);background:0 0;border:none}.nav-item .icon-button:has(.navigation-profile-image):hover{background:0 0}.navigation-profile-image{border:1px solid var(--overlay-light);object-fit:cover;width:var(--nav-control-size);height:var(--nav-control-size);border-radius:60px;transition:transform .2s,border-color .2s}.nav-image-dropdown .menu-item{gap:10px;min-height:40px;padding:8px 10px;font-size:14px;font-weight:500}.nav-image-dropdown .menu-item-icon{width:18px;height:18px}.nav-image-dropdown .menu-item-icon svg{font-size:18px}.nav-item .icon-button:hover .navigation-profile-image{border-color:var(--border-color-hover);transform:scale(1.05)}@media screen and (max-width:768px){.navbar{isolation:isolate;padding:env(safe-area-inset-top,0px) max(18px,env(safe-area-inset-right,0px)) 0 max(18px,env(safe-area-inset-left,0px));box-shadow:none;-webkit-backdrop-filter:none;background:0 0;border-bottom:0}.navbar:before{content:"";z-index:-1;pointer-events:none;background:color-mix(in srgb, var(--bg-primary) 16%, transparent);-webkit-backdrop-filter:blur(7px)saturate(110%);position:absolute;inset:0 0 -14px;-webkit-mask-image:linear-gradient(#000 0% 62%,#0000 100%);mask-image:linear-gradient(#000 0% 62%,#0000 100%)}.navbar-nav{z-index:1;position:relative}.nav-item .icon-button{background:0 0;border:0;border-radius:50%;width:40px;height:40px}.nav-item .icon-button:hover,.nav-item .icon-button:active{background:color-mix(in srgb, var(--text-primary) 8%, transparent);border:0}.nav-links{display:none!important}.nav-divider{display:none}.nav-items-right{min-width:0}.nav-auth-actions{flex-shrink:0;gap:4px}.nav-auth-button{padding:0 8px}.nav-items-right>.account-prefs--nav{display:none}.mobile-nav-dock{z-index:1090;height:calc(var(--mobile-dock-size,68px) + env(safe-area-inset-bottom,0px));padding:5px max(8px,env(safe-area-inset-right,0px)) max(7px,env(safe-area-inset-bottom,0px)) max(8px,env(safe-area-inset-left,0px));border-top:1px solid var(--border-color);background:color-mix(in srgb, var(--surface-primary,var(--bg-secondary)) 94%, transparent);-webkit-backdrop-filter:blur(18px)saturate(150%);border-radius:18px 18px 0 0;grid-template-columns:repeat(5,minmax(0,1fr));align-items:stretch;display:grid;position:fixed;bottom:0;left:0;right:0;overflow:hidden;box-shadow:0 -8px 28px #0e0e0c14}.mobile-nav-dock__item{min-width:0;color:var(--text-tertiary);letter-spacing:-.01em;background:0 0;border:0;border-radius:10px;flex-direction:column;justify-content:center;align-items:center;gap:1px;padding:0;font-family:inherit;font-size:10.5px;font-weight:600;transition:color .18s,background-color .18s,transform .18s;display:flex;position:relative}.mobile-nav-dock__item>svg{width:24px;height:24px}.mobile-nav-dock__item.active{color:var(--nav-accent);background:0 0}.mobile-nav-dock__item:active{transform:scale(.94)}.mobile-nav-dock__item--create>svg{color:#fff;background:var(--nav-accent);width:30px;height:30px;box-shadow:0 5px 12px color-mix(in srgb, var(--nav-accent) 24%, transparent);border-radius:9px;padding:3px}.mobile-nav-dock__avatar{object-fit:cover;border:1.5px solid;border-radius:50%;width:24px;height:24px}}.mobile-create-menu{z-index:1210;justify-content:center;align-items:flex-end;display:flex;position:fixed;inset:0}.mobile-create-menu__backdrop{-webkit-backdrop-filter:blur(4px);background:#0808077a;border:0;padding:0;position:absolute;inset:0}.mobile-create-menu__panel{width:min(100%,520px);padding:8px 16px max(20px,env(safe-area-inset-bottom,0px));border:1px solid var(--border-color);background:var(--surface-elevated);border-bottom:0;border-radius:24px 24px 0 0;animation:.24s cubic-bezier(.22,1,.36,1) mobile-create-menu-in;position:relative;box-shadow:0 -20px 56px #00000038}.mobile-create-menu__handle{background:var(--border-color-hover);border-radius:999px;width:38px;height:4px;margin:0 auto 8px;display:block}.mobile-create-menu__header{justify-content:space-between;align-items:center;gap:12px;padding:4px 2px 14px;display:flex}.mobile-create-menu__header h2{letter-spacing:-.035em;margin:0;font-size:20px;font-weight:700}.mobile-create-menu__close{background:var(--surface-secondary);width:36px;height:36px;color:var(--text-secondary);border:0;border-radius:50%;justify-content:center;align-items:center;display:inline-flex}.mobile-create-menu__actions{gap:8px;display:grid}.mobile-create-menu__action{border:1px solid var(--border-color);background:var(--surface-primary);width:100%;min-height:72px;color:var(--text-primary);text-align:left;border-radius:16px;align-items:center;gap:14px;padding:12px;display:flex}.mobile-create-menu__action-icon{background:color-mix(in srgb, var(--nav-accent) 11%, var(--surface-secondary));width:44px;height:44px;color:var(--nav-accent);border-radius:13px;flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}.mobile-create-menu__action strong,.mobile-create-menu__action small{display:block}.mobile-create-menu__action strong{margin-bottom:3px;font-size:15px}.mobile-create-menu__action small{color:var(--text-secondary);font-size:12px;line-height:1.35}body[data-reader-active] .mobile-nav-dock,body[data-flashcards-active] .mobile-nav-dock{display:none}@media screen and (max-width:768px){body[data-reader-active] .navbar,body[data-flashcards-active] .navbar{display:none}body[data-reader-active] .app-main--with-nav,body[data-flashcards-active] .app-main--with-nav{padding-top:0}body[data-reader-active] .reader-container,body[data-flashcards-active] .flashcards-container{--reader-nav-offset:0px}}@keyframes mobile-create-menu-in{0%{transform:translateY(100%)}to{transform:translateY(0)}}@media screen and (max-width:480px){.navbar{padding:0 8px}.logo-text{font-size:16px}.a-logo{gap:6px}.nav-divider{display:none}.nav-auth-actions{height:30px}.nav-auth-button{height:30px;padding:0 8px;font-size:11px}}
.app-toast-container{--toast-width:min(360px, calc(100vw - 24px));width:var(--toast-width)!important;z-index:1200!important;padding:0!important}.app-toast.Toastify__toast--success,.app-toast.Toastify__toast--error,.app-toast.Toastify__toast--warning,.app-toast.Toastify__toast--info,.app-toast.Toastify__toast--default{background:color-mix(in srgb, var(--bg-secondary) 88%, transparent)!important;color:var(--text-primary)!important}.app-toast-container.Toastify__toast-container--top-right{top:max(12px,env(safe-area-inset-top));right:12px}.app-layout:has(.app-main--with-nav) .app-toast-container.Toastify__toast-container--top-right{top:calc(var(--nav-offset,var(--nav-size,50px)) + 10px)}.app-toast{-webkit-backdrop-filter:blur(14px);align-items:center;font-family:inherit;font-weight:500;line-height:1.35;display:flex;position:relative;overflow:hidden;border:1px solid var(--border-color)!important;background:color-mix(in srgb, var(--bg-secondary) 88%, transparent)!important;min-height:44px!important;color:var(--text-primary)!important;box-shadow:var(--shadow-md)!important;border-radius:12px!important;margin:0 0 8px!important;padding:10px 12px 10px 14px!important;font-size:13px!important}.app-toast:before{content:"";border-radius:999px;width:3px;position:absolute;top:10px;bottom:10px;left:0}.app-toast.Toastify__toast--success:before,.app-toast--success:before{background:var(--accent-success)}.app-toast.Toastify__toast--error:before,.app-toast--error:before{background:var(--accent-danger)}.app-toast.Toastify__toast--warning:before,.app-toast--warning:before{background:var(--accent-warning)}.app-toast.Toastify__toast--info:before,.app-toast--info:before{background:var(--accent-info)}.app-toast .Toastify__toast-body{color:inherit!important;margin:0!important;padding:0!important}.app-toast .Toastify__toast-icon{width:18px!important;min-width:18px!important;margin-inline-end:10px!important}.app-toast.Toastify__toast--success .Toastify__toast-icon{color:var(--accent-success)!important}.app-toast.Toastify__toast--error .Toastify__toast-icon{color:var(--accent-danger)!important}.app-toast.Toastify__toast--warning .Toastify__toast-icon{color:var(--accent-warning)!important}.app-toast.Toastify__toast--info .Toastify__toast-icon{color:var(--accent-info)!important}.app-toast .Toastify__close-button{color:var(--text-tertiary);opacity:.65;align-self:center;padding:2px;transition:opacity .15s,color .15s}.app-toast .Toastify__close-button:hover{opacity:1;color:var(--text-primary)}@media screen and (max-width:768px){.app-toast-container{--toast-width:calc(100vw - 20px)}.app-toast-container.Toastify__toast-container--top-right{top:max(8px,env(safe-area-inset-top));left:10px;right:10px;width:auto!important}.app-toast{border-radius:10px!important;min-height:42px!important;margin-bottom:6px!important;padding:9px 10px 9px 12px!important;font-size:12.5px!important}.app-toast .Toastify__toast-icon{width:16px!important;min-width:16px!important;margin-inline-end:8px!important}}
html{background:var(--bg-primary);min-height:100%;margin:0;padding:0;overflow:clip visible}body{background:0 0;min-height:100%;margin:0;padding:0;overflow:clip visible}@supports not (overflow:clip){html,body{overflow:hidden scroll}}body[data-reader-active],body[data-flashcards-active]{overscroll-behavior:none;overflow:hidden}html:has(body[data-reader-active]){overscroll-behavior:none;overflow:hidden}html:has(body[data-flashcards-active]){overscroll-behavior:none;overflow:hidden}body[data-reader-active] .app-layout,body[data-reader-active] .app-main,body[data-flashcards-active] .app-layout,body[data-flashcards-active] .app-main{height:100%;min-height:0;max-height:100%;overflow:hidden}body[data-reader-active] .account-prefs-theme{display:none}.app-layout,.app-main{background:0 0;min-height:100%}.app-main--with-nav{padding-top:var(--nav-offset,var(--nav-size,50px))}.app-main--with-nav.app-main--verify-banner{padding-top:calc(var(--nav-offset,var(--nav-size,50px)) + 2.5rem)}.email-verify-banner{top:var(--nav-offset,var(--nav-size,50px));z-index:40;background:color-mix(in srgb, var(--accent,#2f6fed) 14%, var(--bg-primary,#fff));border-bottom:1px solid color-mix(in srgb, var(--accent,#2f6fed) 28%, transparent);color:var(--text-primary,#111);flex-wrap:wrap;justify-content:center;align-items:center;gap:.75rem;padding:.55rem 1rem;font-size:.875rem;line-height:1.35;display:flex;position:fixed;left:0;right:0}.email-verify-banner__link{color:var(--accent,#2f6fed);text-underline-offset:2px;font-weight:600;text-decoration:underline}#__next{min-height:100%}