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var(--tw-shadow-color,#0000001a), 0 2px 4px -2px var(--tw-shadow-color,#0000001a);box-shadow:var(--tw-inset-shadow),var(--tw-inset-ring-shadow),var(--tw-ring-offset-shadow),var(--tw-ring-shadow),var(--tw-shadow)}.ring{--tw-ring-shadow:var(--tw-ring-inset,) 0 0 0 calc(1px + var(--tw-ring-offset-width)) var(--tw-ring-color,currentcolor);box-shadow:var(--tw-inset-shadow),var(--tw-inset-ring-shadow),var(--tw-ring-offset-shadow),var(--tw-ring-shadow),var(--tw-shadow)}.outline-hidden{--tw-outline-style:none;outline-style:none}@media(forced-colors:active){.outline-hidden{outline-offset:2px;outline:2px solid #0000}}.outline{outline-style:var(--tw-outline-style);outline-width:1px}.blur{--tw-blur:blur(8px);filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}.\!transition{transition-property:color,background-color,border-color,outline-color,text-decoration-color,fill,stroke,--tw-gradient-from,--tw-gradient-via,--tw-gradient-to,opacity,box-shadow,transform,translate,scale,rotate,filter,-webkit-backdrop-filter,backdrop-filter,display,content-visibility,overlay,pointer-events!important;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function))!important;transition-duration:var(--tw-duration,var(--default-transition-duration))!important}.transition{transition-property:color,background-color,border-color,outline-color,text-decoration-color,fill,stroke,--tw-gradient-from,--tw-gradient-via,--tw-gradient-to,opacity,box-shadow,transform,translate,scale,rotate,filter,-webkit-backdrop-filter,backdrop-filter,display,content-visibility,overlay,pointer-events;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}.select-none{-webkit-user-select:none;user-select:none}.focus\:bg-accent:focus{background-color:var(--hover)}.focus\:text-accent-foreground:focus{color:var(--text-primary)}.data-\[disabled\]\:pointer-events-none[data-disabled]{pointer-events:none}.data-\[disabled\]\:opacity-50[data-disabled]{opacity:.5}.data-\[inset\]\:pl-8[data-inset]{padding-left:calc(var(--spacing) * 8)}.data-\[state\=open\]\:bg-accent[data-state=open]{background-color:var(--hover)}.data-\[state\=open\]\:text-accent-foreground[data-state=open]{color:var(--text-primary)}.data-\[variant\=destructive\]\:text-destructive[data-variant=destructive]{color:var(--status-incorrect)}.data-\[variant\=destructive\]\:focus\:bg-destructive\/10[data-variant=destructive]:focus{background-color:var(--status-incorrect)}@supports (color:color-mix(in lab,red,red)){.data-\[variant\=destructive\]\:focus\:bg-destructive\/10[data-variant=destructive]:focus{background-color:color-mix(in oklab,var(--status-incorrect) 10%,transparent)}}.data-\[variant\=destructive\]\:focus\:text-destructive[data-variant=destructive]:focus{color:var(--status-incorrect)}.dark\:data-\[variant\=destructive\]\:focus\:bg-destructive\/20:where([data-theme=dark],[data-theme=dark] *)[data-variant=destructive]:focus{background-color:var(--status-incorrect)}@supports (color:color-mix(in lab,red,red)){.dark\:data-\[variant\=destructive\]\:focus\:bg-destructive\/20:where([data-theme=dark],[data-theme=dark] *)[data-variant=destructive]:focus{background-color:color-mix(in oklab,var(--status-incorrect) 20%,transparent)}}.\[\&_svg\]\:pointer-events-none svg{pointer-events:none}.\[\&_svg\]\:shrink-0 svg{flex-shrink:0}.\[\&_svg\:not\(\[class\*\=\'size-\'\]\)\]\:size-4 svg:not([class*=size-]){width:calc(var(--spacing) * 4);height:calc(var(--spacing) * 4)}.\[\&_svg\:not\(\[class\*\=\'text-\'\]\)\]\:text-muted-foreground svg:not([class*=text-]){color:var(--text-muted)}:is(.data-\[variant\=destructive\]\:\*\:\[svg\]\:text-destructive\![data-variant=destructive]>*):is(svg){color:var(--status-incorrect)!important}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-font-weight{syntax:"*";inherits:false}@property --tw-tracking{syntax:"*";inherits:false}@property --tw-ordinal{syntax:"*";inherits:false}@property --tw-slashed-zero{syntax:"*";inherits:false}@property --tw-numeric-figure{syntax:"*";inherits:false}@property --tw-numeric-spacing{syntax:"*";inherits:false}@property --tw-numeric-fraction{syntax:"*";inherits:false}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@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}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-control);padding:9px 16px;font-weight:500;font-size:14px;border:1px solid transparent;cursor:pointer;transition:background-color .12s ease,border-color .12s ease,transform 80ms ease}.btn:active{transform:translateY(.5px)}.btn:disabled{opacity:.55;cursor:default}.btn--primary{background:var(--accent);color:var(--on-accent);box-shadow:var(--shadow-card)}.btn--primary:hover:not(:disabled){background:color-mix(in srgb,var(--accent) 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ease}.toast-stack{position:fixed;right:24px;bottom:24px;z-index:200;display:flex;flex-direction:column;gap:8px;align-items:flex-end;pointer-events:none}.toast{pointer-events:auto;max-width:360px;padding:12px 16px;border-radius:var(--radius-card);border:1px solid var(--border);background:var(--card);color:var(--text-primary);box-shadow:var(--shadow-menu);font-size:14px;font-weight:600;animation:toast-in .18s ease-out}.toast--success{border-left:3px solid var(--status-correct)}.toast--error{border-left:3px solid var(--status-incorrect)}@keyframes toast-in{0%{opacity:0;transform:translateY(6px)}}@media(max-width:720px){.toast-stack{right:16px;left:16px;bottom:auto;top:16px;align-items:stretch}.toast{max-width:none}@keyframes toast-in{0%{opacity:0;transform:translateY(-6px)}}}.app-shell{display:flex;height:100vh}.app-shell__sidebar{position:relative;width:264px;flex:none;display:flex;flex-direction:column;background:var(--card-sunken);border-right:1px solid var(--border);padding:14px 12px 12px;min-height:0;transition:width .16s ease}.app-shell__head{display:flex;align-items:center;padding:0 10px;margin-bottom:14px;min-height:28px}.app-shell__wordmark{font-size:17px;font-weight:800;letter-spacing:-.02em;color:var(--text-primary);text-decoration:none;white-space:nowrap}.app-shell__wordmark span{color:var(--accent)}.app-shell__edge-toggle{position:absolute;top:20px;right:-14px;z-index:20;width:28px;height:28px;display:flex;align-items:center;justify-content:center;border-radius:999px;border:1px solid var(--border);background:var(--card);color:var(--text-muted);box-shadow:var(--shadow-card);cursor:pointer;padding:0}.app-shell__edge-toggle:hover{color:var(--text-primary);background:var(--hover)}.app-shell__sidebar--collapsed{width:64px;padding-left:10px;padding-right:10px}.app-shell__sidebar--collapsed .app-shell__head{justify-content:center;padding:0}.app-shell__sidebar--collapsed .app-shell__subject,.app-shell__sidebar--collapsed .app-nav__link,.app-shell__sidebar--collapsed .app-shell__user{justify-content:center;padding-left:0;padding-right:0}.app-shell__sidebar--collapsed .app-shell__user-row{flex-direction:column;gap:6px}.app-shell__sidebar--collapsed .app-shell__user-row>:first-child{flex:none}.app-shell__subject{display:flex;align-items:center;gap:12px;width:100%;padding:10px;border:none;border-radius:var(--radius-control);background:none;color:var(--text-primary);font-size:14px;font-weight:600;cursor:pointer;text-align:left}.app-shell__subject:hover{background:var(--hover)}.app-shell__subject svg{color:var(--text-faint)}.app-shell__subject-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.app-shell__scroll{flex:1;overflow-y:auto;overflow-x:hidden;min-height:0;margin-top:8px}.app-shell__section{font-size:13px;font-weight:500;color:var(--text-faint);padding:0 10px;margin:20px 0 6px}.app-shell__section:first-child{margin-top:0}.app-shell__scroll nav{display:flex;flex-direction:column;gap:8px}.app-nav__link{display:flex;align-items:center;gap:12px;padding:10px;border-radius:var(--radius-control);font-size:14px;font-weight:500;color:var(--text-secondary);text-decoration:none;transition:background .15s ease,color .15s ease,transform .18s cubic-bezier(.2,1.4,.36,1)}.app-nav__link:hover{background:var(--hover)}.app-nav__link:hover svg{transform:scale(1.15) rotate(-6deg);color:var(--accent)}.app-nav__link:active{transform:scale(.97)}.app-nav__link.active{background:var(--hover);color:var(--text-primary);font-weight:600;animation:nav-pop .35s cubic-bezier(.2,1.4,.36,1)}.app-nav__link.active svg{color:var(--accent)}.app-nav__link svg{flex:none;color:var(--text-muted);transition:transform .2s cubic-bezier(.2,1.4,.36,1),color .15s ease}@keyframes nav-pop{0%{transform:scale(.93)}to{transform:scale(1)}}@media(prefers-reduced-motion:reduce){.app-nav__link,.app-nav__link svg{transition:none;animation:none}}.app-shell__divider{height:1px;background:var(--border);margin:6px 4px}.app-shell__support{margin-top:20px}.app-shell__support .app-shell__divider{margin-bottom:8px}.app-shell__footer{flex:none;padding-top:8px;display:flex;flex-direction:column;gap:8px}.app-shell__user-row{display:flex;align-items:center;gap:4px;min-width:0}.app-shell__user-row>:first-child{flex:1;min-width:0;overflow:hidden}.app-shell__user{display:flex;align-items:center;gap:10px;width:100%;min-width:0;padding:8px 10px;border:none;border-radius:var(--radius-control);background:none;cursor:pointer;text-align:left}.app-shell__user:hover{background:var(--hover)}.app-shell__user-name{flex:1;min-width:0;display:flex;flex-direction:column;line-height:1.3}.app-shell__user-name strong{font-size:13.5px;font-weight:500;color:var(--text-primary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.app-shell__user .avatar{width:28px;height:28px;font-size:12px;flex:none}.app-shell__content{flex:1;overflow-y:auto;min-width:0}.app-shell__page{max-width:980px;margin:0 auto;padding:40px 48px 64px;transition:max-width .16s ease}.app-shell:has(.app-shell__sidebar--collapsed) .app-shell__page{max-width:1200px}.app-shell__mobilebar,.app-shell__scrim{display:none}@media(max-width:768px){.app-shell{flex-direction:column;height:auto;min-height:100vh}.app-shell__mobilebar{display:flex;align-items:center;gap:12px;position:sticky;top:0;z-index:30;padding:10px 14px;background:var(--card-sunken);border-bottom:1px solid var(--border)}.app-shell__burger{display:flex;align-items:center;justify-content:center;width:38px;height:38px;flex:none;border:1px solid var(--border);border-radius:var(--radius-control);background:var(--card);color:var(--text-primary);cursor:pointer;padding:0}.app-shell__burger:hover{background:var(--hover)}.app-shell__sidebar,.app-shell__sidebar--collapsed{position:fixed;top:0;left:0;bottom:0;width:280px;padding:14px 12px 12px;transform:translate(-100%);transition:transform .22s ease;z-index:60;box-shadow:var(--shadow-pop)}.app-shell__sidebar--mobile-open{transform:translate(0)}.app-shell__edge-toggle{display:none}.app-shell__scrim{display:block;position:fixed;top:0;right:0;bottom:0;left:0;z-index:50;background:#09090b73;opacity:0;pointer-events:none;transition:opacity .22s ease}.app-shell__scrim--open{opacity:1;pointer-events:auto}.app-shell__content{overflow-y:visible}.app-shell__page{padding:24px 18px 48px}}.add-subject{min-width:320px;display:flex;flex-direction:column;gap:8px}.add-subject h2{margin:0}.add-subject .dash-meta{margin:0 0 8px}.add-subject__row{display:flex;align-items:center;gap:10px;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius-control);background:var(--card);color:var(--text-primary);font-size:14px;font-weight:500;cursor:pointer;text-align:left}.add-subject__row:hover:not(:disabled){background:var(--hover)}.add-subject__row:disabled{opacity:.6}.add-subject__name{flex:1}.add-subject__row svg{color:var(--text-muted)}.nav-menu__dot{width:10px;height:10px;border-radius:999px;flex:none}.avatar{display:inline-flex;align-items:center;justify-content:center;flex:none;width:36px;height:36px;border-radius:999px;border:none;background:var(--accent);color:var(--on-accent);font-weight:700;font-size:14px;cursor:pointer}.nav-spacer{flex:1}.bb-shell{display:flex;flex-direction:column;height:100vh;color-scheme:light;--canvas: #f7f7f8;--card: #ffffff;--card-sunken: #f1f1f3;--input: #ffffff;--border: rgba(9, 9, 11, .08);--border-strong: rgba(9, 9, 11, .16);--text-primary: var(--bb-text);--text-secondary: #3f3f46;--text-muted: var(--bb-muted);--hover: rgba(9, 9, 11, .04);background:var(--bb-surface)}.bb-shell__top,.bb-shell__bottom{flex:none;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;padding:10px 24px;background:var(--bb-bar);z-index:10}.bb-shell__top{border-bottom:2px dashed var(--bb-dashed)}.bb-shell__bottom{border-top:2px dashed var(--bb-dashed);position:relative}.bb-shell__top-left{display:flex;flex-direction:column;gap:2px;min-width:0}.bb-shell__section{font-size:15px;color:var(--bb-text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.bb-shell__directions{display:flex;align-items:center;gap:3px;background:none;border:none;padding:0;font-size:13px;color:var(--bb-text);cursor:pointer;width:fit-content}.bb-shell__top-center{display:flex;flex-direction:column;align-items:center;gap:3px}.bb-shell__timer-hidden{height:27px}.bb-shell__hide{background:none;border:1px solid var(--bb-text);border-radius:var(--radius-pill);padding:1px 14px;font-size:12px;font-weight:600;color:var(--bb-text);cursor:pointer}.bb-shell__hide:hover{background:var(--hover)}.bb-shell__top-right{display:flex;justify-content:flex-end}.bb-shell__tool{display:flex;align-items:center;gap:6px;background:none;border:none;padding:4px 10px;border-radius:var(--radius-pill);font-size:13px;font-weight:600;color:var(--bb-text);cursor:pointer}.bb-shell__tool:hover{background:var(--hover)}.bb-shell__tool--active{background:var(--bb-text);color:var(--bb-bar)}.bb-shell__tool--active:hover{background:var(--bb-text)}.bb-calc{position:fixed;top:84px;right:16px;width:420px;height:540px;max-width:calc(100vw - 32px);max-height:calc(100vh - 160px);resize:both;overflow:hidden;border:1px solid var(--border-strong);border-radius:var(--radius-md);background:var(--card);box-shadow:0 12px 32px #09090b2e;z-index:30}.bb-calc__mount{width:100%;height:100%}.bb-banner{flex:none;display:flex;align-items:center;justify-content:center;gap:24px;margin:8px 16px 0;padding:6px 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