:root{--altcha-border-color:var(--altcha-color-neutral);--altcha-border-width:1px;--altcha-border-radius:6px;--altcha-color-base:light-dark(oklch(100% .00011 271.152),oklch(20.904% .00002 271.152));--altcha-color-base-content:light-dark(oklch(20.904% .00002 271.152),oklch(100% .00011 271.152));--altcha-color-error:oklch(51.284% .20527 28.678);--altcha-color-error-content:oklch(100% .00011 271.152);--altcha-color-neutral:light-dark(oklch(83.591% .0001 271.152),oklch(46.04% .00005 271.152));--altcha-color-neutral-content:light-dark(oklch(46.76% .00005 271.152),oklch(100% .00011 271.152));--altcha-color-primary:oklch(40.279% .2449 268.131);--altcha-color-primary-content:oklch(100% .00011 271.152);--altcha-color-success:oklch(55.748% .18968 142.511);--altcha-color-success-content:oklch(100% .00011 271.152);--altcha-checkbox-border-color:light-dark(oklch(66.494% .00233 15.434),oklch(51.028% .00006 271.152));--altcha-checkbox-border-radius:5px;--altcha-checkbox-border-width:var(--altcha-border-width);--altcha-checkbox-outline:2px solid var(--altcha-checkbox-outline-color);--altcha-checkbox-outline-color:-webkit-focus-ring-color;--altcha-checkbox-outline-offset:2px;--altcha-checkbox-size:22px;--altcha-checkbox-transition-duration:var(--altcha-transition-duration);--altcha-input-background-color:var(--altcha-color-base);--altcha-input-border-radius:3px;--altcha-input-border-width:1px;--altcha-input-color:var(--altcha-color-base-content);--altcha-max-width:320px;--altcha-padding:.75rem;--altcha-popover-arrow-size:6px;--altcha-popover-color:var(--altcha-border-color);--altcha-shadow:drop-shadow(3px 3px 6px oklch(0% 0 0/.2));--altcha-spinner-color:var(--altcha-color-base-content);--altcha-switch-background-color:var(--altcha-color-neutral);--altcha-switch-border-radius:calc(infinity*1px);--altcha-switch-height:var(--altcha-checkbox-size);--altcha-switch-padding:.25rem;--altcha-switch-width:calc(var(--altcha-checkbox-size)*1.75);--altcha-switch-toggle-border-radius:100%;--altcha-switch-toggle-color:var(--altcha-color-neutral-content);--altcha-switch-toggle-size:calc(var(--altcha-switch-height) - var(--altcha-switch-padding)*2);--altcha-transition-duration:.6s;--altcha-z-index:99999999;--altcha-z-index-popover:999999999}@supports (-moz-appearance:none){:root{--altcha-checkbox-outline-color:var(--altcha-color-primary)}}.altcha{all:revert-layer;display:none;font-family:inherit;font-size:inherit;position:relative}.altcha[data-visible]{display:block}.altcha *,.altcha-popover,.altcha-popover *{all:revert-layer;box-sizing:border-box;font-family:inherit;font-size:inherit;line-height:1.25}.altcha a,.altcha-popover a{color:currentColor;text-decoration:none}.altcha a:hover,.altcha-popover a:hover{color:currentColor}.altcha-main{align-items:start;background-color:var(--altcha-color-base);border:var(--altcha-border-width,1px) solid var(--altcha-border-color);border-radius:var(--altcha-border-radius,0);color:var(--altcha-color-base-content);display:flex;flex-direction:column;gap:.5rem;justify-content:space-between;max-width:var(--altcha-max-width,100%);padding:var(--altcha-padding)}.altcha-main>*{display:flex;width:100%}.altcha-main>:first-child{flex-grow:1}.altcha-checkbox-wrap{align-items:center;display:flex;flex-direction:row;flex-grow:1;gap:.5rem}.altcha-checkbox-wrap>*{display:flex}.altcha-logo{opacity:.7}.altcha-footer{align-items:center;display:flex;flex-grow:1;font-size:.7rem;gap:.5rem;justify-content:flex-end;opacity:.7}.altcha-footer p{margin:0;padding:0}.altcha-error{font-size:.85rem}.altcha-button{align-items:center;background:var(--altcha-color-primary);border:var(--altcha-input-border-width) solid var(--altcha-color-primary);border-radius:var(--altcha-input-border-radius);color:var(--altcha-color-primary-content);cursor:pointer;display:flex;font-size:.9rem;gap:.5rem;padding:.35rem}.altcha-button:focus{border-color:var(--altcha-color-primary);outline:var(--altcha-checkbox-outline);outline-offset:var(--altcha-checkbox-outline-offset)}.altcha-button>.altcha-spinner,.altcha-button>svg{height:20px;width:20px}.altcha-button-secondary{background:transparent;border-color:var(--altcha-color-neutral);color:var(--altcha-color-neutral-content)}.altcha-input{background:var(--altcha-input-background-color);border:var(--altcha-input-border-width) solid var(--altcha-color-neutral);border-radius:var(--altcha-input-border-radius);color:var(--altcha-input-color);flex-grow:1;font-size:1rem;min-width:0;padding:.25rem;width:auto}.altcha-input:focus{border-color:var(--altcha-color-primary);outline:var(--altcha-checkbox-outline);outline-offset:var(--altcha-checkbox-outline-offset)}.altcha-spinner{animation:altcha-rotate .6s linear infinite;border:var(--altcha-checkbox-border-width) solid var(--altcha-spinner-color);border-bottom-color:transparent;border-radius:100%;border-right-color:transparent;opacity:.7}.altcha-popover{background-color:var(--altcha-color-base);border:var(--altcha-border-width) solid var(--altcha-border-color);border-radius:var(--altcha-border-radius);color:var(--altcha-color-base-content);filter:var(--altcha-shadow);left:calc(var(--altcha-padding)/2);max-width:calc(var(--altcha-max-width) - var(--altcha-padding));position:absolute;top:calc(var(--altcha-padding) + var(--altcha-checkbox-size) + var(--altcha-popover-arrow-size));z-index:var(--altcha-z-index-popover)}.altcha-popover-arrow{border-bottom-color:transparent;border:var(--altcha-popover-arrow-size) solid transparent;border-bottom:var(--altcha-popover-arrow-size) solid var(--altcha-popover-color);content:"";height:0;left:calc(var(--altcha-checkbox-size)/2);position:absolute;top:calc(var(--altcha-popover-arrow-size)*-2);width:0}.altcha-popover-content{max-height:100dvh;overflow:auto;padding:var(--altcha-padding)}.altcha-popover[data-top=true][data-display=standard]{bottom:calc(100% - var(--altcha-padding) + var(--altcha-popover-arrow-size));top:auto}.altcha-popover[data-top=true][data-display=standard] .altcha-popover-arrow{border-bottom-color:transparent;border-top-color:var(--altcha-popover-color);bottom:calc(var(--altcha-popover-arrow-size)*-2);top:auto}.altcha-popover[data-variant=error]{--altcha-popover-color:var(--altcha-color-error);background-color:var(--altcha-color-error);border-color:var(--altcha-color-error);color:var(--altcha-color-error-content)}.altcha-popover[data-variant=error] .altcha-popover-content{padding:calc(var(--altcha-padding)/1.5) var(--altcha-padding)}.altcha-popover[data-display=overlay]{animation:altcha-overlay-slidein .5s forwards;top:45%;transform:translate(-50%,-50%)}.altcha-popover[data-display=bottomsheet],.altcha-popover[data-display=overlay]{left:50%;position:fixed;width:var(--altcha-max-width);z-index:var(--altcha-z-index)}.altcha-popover[data-display=bottomsheet]{animation:altcha-bottomsheet-slideup .5s forwards;border-bottom:0;border-bottom-left-radius:0;border-bottom-right-radius:0;bottom:-100%;top:auto;transform:translate(-50%)}.altcha-popover[data-display=bottomsheet] .altcha-popover-content{padding-bottom:calc(var(--altcha-padding)*2)}.altcha-popover-backdrop{background:var(--altcha-color-base-content);inset:0;opacity:.1;position:fixed;transition:opacity .5s;z-index:var(--altcha-z-index)}.altcha-popover-close{color:var(--altcha-color-base-content);cursor:pointer;display:inline-block;font-size:1rem;height:1.25rem;line-height:.95;position:absolute;right:0;text-align:center;text-shadow:0 0 1px var(--altcha-color-base);top:-1.5rem;width:1.25rem;z-index:var(--altcha-z-index)}[dir=rtl] .altcha-popover{left:auto;right:calc(var(--altcha-padding)/2)}[dir=rtl] .altcha-popover-arrow{left:auto;right:calc(var(--altcha-checkbox-size)/2)}[dir=rtl] .altcha-popover-close{left:0;right:auto}.altcha-popover[data-display=bottomsheet] .altcha-footer,.altcha-popover[data-display=overlay] .altcha-footer{align-items:center;gap:.5rem;justify-content:center;padding-top:1rem}.altcha-popover[data-display=bottomsheet] .altcha-footer svg,.altcha-popover[data-display=overlay] .altcha-footer svg{height:18px;vertical-align:middle;width:18px}.altcha-code-challenge>form{display:flex;flex-direction:column;gap:.5rem}.altcha-code-challenge-title{font-weight:600}.altcha-code-challenge-text{font-size:.85rem}.altcha-code-challenge-image{background:#fff;border:var(--altcha-input-border-width) solid var(--altcha-color-neutral);border-radius:var(--altcha-input-border-radius);height:50px;object-fit:contain}.altcha-code-challenge-row{display:flex;gap:.5rem}.altcha-code-challenge-buttons{align-items:center;display:flex;flex-direction:column;gap:.5rem;justify-content:space-between;margin-top:var(--altcha-padding)}.altcha-code-challenge-buttons button{justify-content:center;width:100%}.altcha-checkbox{position:relative}.altcha-checkbox,.altcha-checkbox input{cursor:pointer;height:var(--altcha-checkbox-size);width:var(--altcha-checkbox-size)}.altcha-checkbox input{appearance:none;background:var(--altcha-input-background-color);border:var(--altcha-checkbox-border-width,2px) solid var(--altcha-checkbox-border-color);border-radius:var(--altcha-checkbox-border-radius);left:0;margin:0;padding:0;position:absolute;top:0}@supports (hanging-punctuation:first) and (font:-apple-system-body) and (-webkit-appearance:none){.altcha-checkbox input:focus{outline-style:solid;outline-width:2px}}.altcha-checkbox input:before{background:var(--altcha-color-neutral);border-radius:var(--altcha-checkbox-border-radius);content:"";display:block;height:100%;transform:scale(0);width:100%}.altcha-checkbox input:checked{background-color:var(--altcha-color-success);border-color:var(--altcha-color-success)}.altcha-checkbox input:checked:before{background-color:var(--altcha-color-success);opacity:0;transform:scale(2.2);transition:all var(--altcha-checkbox-transition-duration) ease;transition-delay:.1s}.altcha-checkbox svg{--altcha-radio-svg-size:calc(var(--altcha-checkbox-size)*.5);--altcha-radio-svg-offset:calc(var(--altcha-checkbox-size)*.25);fill:none;height:var(--altcha-radio-svg-size);left:var(--altcha-radio-svg-offset);opacity:0;position:absolute;stroke:currentColor;stroke-dasharray:16px;stroke-dashoffset:16px;stroke-linecap:round;stroke-linejoin:round;stroke-width:2;top:var(--altcha-radio-svg-offset);transform:translateZ(0);width:var(--altcha-radio-svg-size)}.altcha-checkbox input:checked+svg{color:var(--altcha-color-success-content);opacity:1;stroke-dashoffset:0;transition:all var(--altcha-checkbox-transition-duration) ease;transition-delay:.1s}.altcha-checkbox-spinner{display:none;height:var(--altcha-checkbox-size);left:0;position:absolute;top:0;width:var(--altcha-checkbox-size)}.altcha-checkbox[data-loading=true] input{appearance:none;opacity:0;pointer-events:none}.altcha-checkbox[data-loading=true] .altcha-checkbox-spinner{display:block}.altcha-checkbox-native{position:relative}.altcha-checkbox-native,.altcha-checkbox-native input{height:var(--altcha-checkbox-size);width:var(--altcha-checkbox-size)}.altcha-checkbox-native input{margin:0}.altcha-checkbox-native-spinner{display:none;height:var(--altcha-checkbox-size);left:0;position:absolute;top:0;width:var(--altcha-checkbox-size)}.altcha-checkbox-native[data-loading=true] input{appearance:none;opacity:0;pointer-events:none}.altcha-checkbox-native[data-loading=true] .altcha-checkbox-native-spinner{display:block}.altcha-switch{align-items:center;background-color:var(--altcha-switch-background-color);border-radius:var(--altcha-switch-border-radius);display:flex;height:var(--altcha-switch-height);padding:var(--altcha-switch-padding);position:relative;width:var(--altcha-switch-width)}.altcha-switch:focus-within{outline:var(--altcha-checkbox-outline);outline-offset:var(--altcha-checkbox-outline-offset)}.altcha-switch input{appearance:none;cursor:pointer;height:100%;left:0;opacity:0;position:absolute;top:0;width:100%}.altcha-switch-toggle{align-items:center;background-color:var(--altcha-switch-toggle-color);border-radius:var(--altcha-switch-toggle-border-radius);cursor:pointer;display:flex;justify-content:center;left:var(--altcha-switch-padding);position:absolute;transition:width .15s ease-out,left .15s ease-out}.altcha-switch-spinner,.altcha-switch-toggle{height:var(--altcha-switch-toggle-size);width:var(--altcha-switch-toggle-size)}.altcha-switch-spinner{display:none}.altcha-switch[data-loading=true]{pointer-events:none}.altcha-switch[data-loading=true] .altcha-switch-spinner{display:block}.altcha-switch[data-loading=true] .altcha-switch-toggle{background-color:transparent;left:calc(50% - var(--altcha-switch-toggle-size)/2)}[data-state=verified] .altcha-switch{--altcha-switch-background-color:var(--altcha-color-success)}[data-state=verified] .altcha-switch-toggle{background-color:var(--altcha-color-success-content)}[data-state=verified] .altcha-switch-toggle,[dir=rtl] .altcha-switch-toggle{left:calc(100% - var(--altcha-switch-height) + var(--altcha-switch-padding))}[dir=rtl][data-state=verified] .altcha-switch-toggle{left:var(--altcha-switch-padding)}.altcha-floating-arrow{border:6px solid transparent;border-bottom:6px solid var(--altcha-border-color);content:"";height:0;left:12px;position:absolute;top:-12px;width:0}.altcha-overlay-backdrop{inset:0;position:fixed;transition:opacity var(--altcha-transition-duration);z-index:var(--altcha-z-index)}.altcha-overlay-close{color:currentColor;cursor:pointer;display:inline-block;font-size:1rem;height:1rem;line-height:.85;position:absolute;right:0;text-align:center;text-shadow:0 0 1px var(--altcha-color-base);top:-1.5rem;width:1rem;z-index:var(--altcha-z-index)}.altcha[data-display=overlay]{animation:altcha-overlay-slidein var(--altcha-transition-duration) forwards;filter:var(--altcha-shadow);left:50%;opacity:0;position:fixed;top:45%;transform:translate(-50%,-50%);z-index:var(--altcha-z-index)}.altcha[data-display=overlay] .altcha-main{width:var(--altcha-max-width)}.altcha[data-display=floating]{display:none;filter:var(--altcha-shadow);left:var(--altcha-floating-left,-100%);position:fixed;top:var(--altcha-floating-top,-100%);z-index:var(--altcha-z-index)}.altcha[data-display=floating] .altcha-main{width:var(--altcha-max-width)}.altcha[data-display=floating][data-floating-position=top] .altcha-floating-arrow{border-bottom-color:transparent;border-top-color:var(--altcha-border-color);bottom:-12px;top:auto}.altcha[data-display=floating][data-visible]{display:flex}.altcha[data-display=bar]{bottom:-100%;filter:var(--altcha-shadow);left:0;position:fixed;right:0;transition:bottom var(--altcha-transition-duration),top var(--altcha-transition-duration);z-index:var(--altcha-z-index)}.altcha[data-display=bar] .altcha-main{align-items:center;border-radius:0;border-width:var(--altcha-border-width) 0 0 0;flex-direction:row;max-width:100%!important}.altcha[data-display=bar] .altcha-main>*{width:auto}.altcha[data-display=bar][data-placement=top]{bottom:auto;top:-100%}.altcha[data-display=bar][data-placement=top] .altcha-main{border-width:0 0 var(--altcha-border-width) 0}.altcha[data-display=bar][data-placement=bottom]:not([data-state=unverified]){bottom:0}.altcha[data-display=bar][data-placement=top]:not([data-state=unverified]){top:0}.altcha[data-display=invisible]{display:none}@keyframes altcha-rotate{0%{transform:rotate(0)}to{transform:rotate(1turn)}}@keyframes altcha-bottomsheet-slideup{to{bottom:0}}@keyframes altcha-overlay-slidein{to{opacity:1;top:50%}}:root{font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:#202738;background:#f7f8fa;font-synthesis:none;font-weight:400;--primary: #2849e8;--muted: #7a8293;--line: #e9ecf1;--sidebar: 245px}*{box-sizing:border-box}body{margin:0}button,input,textarea,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button{transition:background .15s,transform .15s}button:focus-visible,a:focus-visible{outline:3px solid #8b9fff;outline-offset:4px}button:active:not(:disabled){transform:translateY(1px)}input,textarea,select{border:1px solid #dde1e9;border-radius:9px;background:#fff;color:#202738;padding:12px 14px;width:100%;outline:none;transition:border .15s,box-shadow .15s}input:focus,textarea:focus,select:focus{border-color:var(--primary);box-shadow:0 0 0 3px #2849e810}input::placeholder,textarea::placeholder{color:#9aa1ae}textarea{resize:vertical;min-height:80px}input[type=checkbox]{width:18px;height:18px;accent-color:var(--primary);cursor:pointer;flex-shrink:0}label{display:flex;flex-direction:column;gap:8px;font-size:13px;font-weight:550;line-height:1.5}form{display:flex;flex-direction:column;gap:19px}h1,h2,h3,p{margin:0}h1{font-size:32px;letter-spacing:-1.05px;line-height:1.25;font-weight:650}h2{font-size:20px;letter-spacing:-.5px;font-weight:650}h3{font-size:18px}p{line-height:1.65;color:var(--muted);font-size:14px}small{font-size:12px}svg{flex-shrink:0;stroke-width:1.8}button svg{vertical-align:middle}.button{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:12px 19px;border:1px solid transparent;border-radius:9px;font-weight:600;font-size:13px;min-height:44px;white-space:nowrap}.primary{background:var(--primary);color:#fff;box-shadow:0 3px 5px #2849e812}.primary:hover:not(:disabled){background:#203bc4}.secondary{background:#fff;border-color:#e0e4ec;color:#384052}.secondary:hover{background:#f5f6fa}.danger{color:#fff;background:#bf3443}.danger-text{color:#b44751!important}.text-button{display:inline-flex;align-items:center;gap:8px;border:0;background:transparent;color:var(--primary);font-weight:600;font-size:12px;padding:8px 0}.icon-button{display:inline-flex;align-items:center;justify-content:center;background:transparent;border:0;padding:8px;color:#8991a0;border-radius:7px}.icon-button:hover{background:#f0f2f7;color:#283446}.eyebrow{display:block;font-size:10px;letter-spacing:1.8px;font-weight:700;color:#8991a2;line-height:1.5;margin-bottom:12px}.muted{color:var(--muted);font-weight:400}.small{font-size:12px}.logo{display:flex;align-items:center;font-size:26px;font-weight:750;letter-spacing:-1.15px;color:#202738;gap:9px}.logo-mark{background:var(--primary);color:#fff;width:35px;height:35px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px}.logo-dot{color:var(--primary);margin-left:-9px}.app-shell{display:flex;min-height:100dvh}.sidebar{width:var(--sidebar);position:fixed;top:0;bottom:0;left:0;background:#fff;border-right:1px solid var(--line);display:flex;flex-direction:column;padding:35px 22px 0;z-index:30}.sidebar>.logo{margin:0 10px 44px}.workspace-label{font-size:9px;color:#a0a6b3;font-weight:650;letter-spacing:1.7px;padding-left:15px;margin-bottom:16px}nav{display:flex;flex-direction:column;gap:7px}nav>button{border:0;background:transparent;display:flex;align-items:center;gap:13px;color:#777f90;font-size:13px;font-weight:550;text-align:left;padding:13px 15px;border-radius:8px;min-height:45px}nav>button.active{background:#edf1ff;color:var(--primary)}nav>button:hover{background:#f3f5fa}.nav-count{margin-left:auto;font-size:10px;padding:2px 6px;background:#e3e9fb;color:#4961bb;border-radius:4px}.sidebar-tip{margin-top:auto;background:#f7f8fc;border:1px solid #eef0f5;padding:17px 16px;border-radius:11px;margin-bottom:25px}.tip-spark{display:flex;color:#6779be;margin-bottom:12px}.sidebar-tip strong{font-size:12px;font-weight:600}.sidebar-tip p{font-size:11px;line-height:1.8;margin-top:7px}.sidebar-tip button{display:flex;align-items:center;justify-content:space-between;color:#3f58bc;background:transparent;border:0;font-size:10px;font-weight:650;width:100%;padding:13px 0 0}.sidebar-bottom{margin-top:0}.help-link{display:flex;align-items:center;gap:12px;border:0;background:transparent;color:#7a8292;font-size:12px;padding:10px 13px 24px}.user{border-top:1px solid var(--line);display:flex;align-items:center;gap:10px;padding:20px 0}.avatar{width:35px;height:35px;background:#f3e9db;color:#92704c;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px}.user>span:nth-child(2){flex:1;min-width:0}.user strong{font-size:12px;display:block;max-width:110px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.user small{font-size:9px;color:#9a9fab;display:block;margin-top:5px}.main-shell{margin-left:var(--sidebar);width:calc(100% - var(--sidebar));min-width:0}.topbar{height:75px;border-bottom:1px solid var(--line);padding:0 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