._header_1g6wh_1{z-index:3;grid-template-columns:1fr auto 1fr;align-items:center;min-height:2.25rem;display:grid;position:relative}._wordmark_1g6wh_10{color:var(--color-text);font-size:var(--font-size-xs);letter-spacing:.16em;text-transform:uppercase;background:0 0;border:0;justify-self:start;padding:0;font-weight:740;line-height:1}._progressWrap_1g6wh_23{justify-items:center;gap:.38rem;display:grid}._mode_1g6wh_24{color:var(--color-muted);letter-spacing:.12em;text-transform:uppercase;font-size:.62rem;font-weight:680;line-height:1}._progress_1g6wh_23{align-items:center;gap:.42rem;display:flex}._progress_1g6wh_23 span{border-radius:var(--radius-pill);background:var(--color-border-strong);width:1.7rem;height:.16rem;transition:background-color var(--motion-normal) ease, transform var(--motion-normal) var(--ease-out)}._progress_1g6wh_23 span[data-state=current]{background:var(--color-text);transform:scaleX(1.15)}._progress_1g6wh_23 span[data-state=done]{background:var(--color-accent)}._help_1g6wh_43{border:1px solid var(--color-border);width:2.25rem;height:2.25rem;color:var(--color-text);font:inherit;cursor:pointer;transition:border-color var(--motion-fast) var(--ease-out), transform var(--motion-fast) var(--ease-out);background:0 0;border-radius:50%;justify-self:end}._help_1g6wh_43:active{transform:scale(.97)}@media (hover:hover) and (pointer:fine){._help_1g6wh_43:hover{border-color:var(--color-text)}}@media (width<=32rem){._progress_1g6wh_23 span{width:1.15rem}}._shell_6ahbi_1{min-height:100svh;padding:var(--space-5) clamp(var(--space-5), 5vw, var(--space-8));isolation:isolate;grid-template-rows:auto 1fr auto;display:grid;position:relative;overflow:hidden}._shell_6ahbi_1:before{content:"";z-index:-1;pointer-events:none;transition:opacity var(--motion-slow) var(--ease-out);background:linear-gradient(90deg,#0000 49.94%,#1d231f09 50%,#0000 50.06%),radial-gradient(circle at 50% 46%,#7b91691a,#0000 31rem);position:absolute;inset:0}._content_6ahbi_23{place-items:center;min-height:0;display:grid}._footer_6ahbi_25{z-index:2;color:var(--color-muted);font-size:var(--font-size-xs);justify-content:space-between;align-items:center;display:flex;position:relative}._helpLayer_6ahbi_35{z-index:20;padding:var(--space-5);-webkit-backdrop-filter:blur(.35rem);backdrop-filter:blur(.35rem);background:#1d231f3d;place-items:center;display:grid;position:fixed;inset:0}._helpPanel_6ahbi_46{border-radius:var(--radius-lg);opacity:1;width:min(100%,31rem);transition:transform var(--motion-normal) var(--ease-out), opacity var(--motion-fast) ease;background:#faf9f4f0;border:1px solid #ffffffa6;padding:clamp(2rem,6vw,3.5rem);position:relative;transform:scale(1);box-shadow:0 1.5rem 5rem #191f1b2e}@starting-style{._helpPanel_6ahbi_46{opacity:0;transform:scale(.97)}}._helpClose_6ahbi_60{top:var(--space-4);right:var(--space-4);width:2.25rem;height:2.25rem;color:var(--color-muted);cursor:pointer;background:0 0;border:0;font-size:1.5rem;position:absolute}._helpKicker_6ahbi_73{margin:0 0 var(--space-3);color:var(--color-accent-strong);font-size:var(--font-size-xs);letter-spacing:.14em;text-transform:uppercase;font-weight:700}._helpPanel_6ahbi_46 h2{margin:0 0 var(--space-5);font-family:var(--font-display);letter-spacing:-.035em;font-size:clamp(2rem,5vw,3.4rem);font-weight:520;line-height:1}._helpPanel_6ahbi_46 p{color:var(--color-muted);line-height:1.6}._helpExample_6ahbi_93{justify-content:center;align-items:baseline;gap:var(--space-4);margin:var(--space-6) 0;padding:var(--space-5);border-block:1px solid var(--color-border);font-family:var(--font-display);font-size:var(--font-size-lg);flex-wrap:wrap;display:flex}._helpThesis_6ahbi_106{font-family:var(--font-display);text-align:center;font-style:italic;color:var(--color-text)!important}._helpReplay_6ahbi_113{width:100%;margin-top:var(--space-5);border:1px solid var(--color-border-strong);border-radius:var(--radius-pill);color:var(--color-text);cursor:pointer;background:0 0;justify-content:space-between;align-items:center;padding:.9rem 1rem;display:flex}._helpAbout_6ahbi_127{margin-top:var(--space-6);padding-top:var(--space-5);border-top:1px solid var(--color-border)}._helpAbout_6ahbi_127 ._helpKicker_6ahbi_73{margin-bottom:var(--space-2)}._helpAbout_6ahbi_127 p:last-child{margin:0}._helpKeys_6ahbi_136{font-size:var(--font-size-xs);margin-bottom:0}._helpKeys_6ahbi_136 kbd{color:var(--color-text);font-family:var(--font-body);font-weight:700}@media (width<=38rem){._shell_6ahbi_1{padding:var(--space-5)}._footer_6ahbi_25 span:last-child{display:none}}@media (prefers-reduced-transparency:reduce){._helpLayer_6ahbi_35{-webkit-backdrop-filter:none;backdrop-filter:none;background:#1d231f7a}._helpPanel_6ahbi_46{background:var(--color-surface)}}._intro_zrom0_1{text-align:center;width:min(100%,46rem);padding:var(--space-7) 0;flex-direction:column;align-items:center;display:flex}._presence_zrom0_9{width:3rem;height:3rem;margin-bottom:var(--space-6);place-items:center;display:grid}._presence_zrom0_9 span{background:var(--color-accent);width:.4rem;height:.4rem;animation:_breathe_zrom0_1 3.6s var(--ease-in-out) infinite;border-radius:50%;box-shadow:0 0 .75rem #6f825e59}._eyebrow_zrom0_14{margin:0 0 var(--space-4);color:var(--color-muted);font-size:var(--font-size-xs);letter-spacing:.14em;text-transform:uppercase;font-weight:680}._intro_zrom0_1 h1{max-width:12ch;font-family:var(--font-display);letter-spacing:-.055em;text-wrap:balance;margin:0;font-size:clamp(3rem,8vw,6.9rem);font-weight:520;line-height:.94}._lede_zrom0_22{max-width:30rem;margin:var(--space-6) auto 0;color:var(--color-muted);font-size:var(--font-size-md);text-wrap:balance;line-height:1.55}._modePicker_zrom0_26{width:min(100%,38rem);margin-top:var(--space-6);flex-wrap:wrap;justify-content:center;gap:.45rem;display:flex}._modePicker_zrom0_26 button{border:1px solid var(--color-border);border-radius:var(--radius-pill);color:var(--color-muted);font:inherit;font-size:var(--font-size-xs);cursor:pointer;transition:color var(--motion-fast) ease, border-color var(--motion-fast) ease, background-color var(--motion-fast) ease;background:0 0;padding:.55rem .8rem}._modePicker_zrom0_26 button[data-selected=true]{border-color:var(--color-text);background:var(--color-text);color:var(--color-background)}._modePicker_zrom0_26 button:disabled{cursor:default;opacity:.48}._begin_zrom0_54{min-width:10.75rem;margin-top:var(--space-7);border-radius:var(--radius-pill);background:var(--color-text);color:var(--color-background);font:inherit;font-size:var(--font-size-sm);cursor:pointer;justify-content:space-between;align-items:center;gap:var(--space-5);transition:transform var(--motion-fast) var(--ease-out), background-color var(--motion-fast) ease;border:0;padding:.9rem 1.1rem .9rem 1.35rem;font-weight:660;display:flex;box-shadow:0 .5rem 1.5rem #181d1a1f}._begin_zrom0_54:active{transform:scale(.97)}._marks_zrom0_63{margin-top:var(--space-6);gap:.45rem;display:flex}._marks_zrom0_63 span{border-radius:var(--radius-pill);background:var(--color-border-strong);width:1.65rem;height:.18rem}@media (hover:hover) and (pointer:fine){._begin_zrom0_54:hover{background:var(--color-accent-strong)}._modePicker_zrom0_26 button:not(:disabled):hover{border-color:var(--color-text);color:var(--color-text)}._modePicker_zrom0_26 button[data-selected=true]:hover{color:var(--color-background)}}@keyframes _breathe_zrom0_1{0%,to{opacity:.72;transform:scale(.9)}50%{opacity:1;transform:scale(1.22)}}@media (width<=38rem){._intro_zrom0_1{padding-block:var(--space-6)}._lede_zrom0_22{font-size:var(--font-size-sm)}._modePicker_zrom0_26{width:min(100%,22rem)}}@media (prefers-reduced-motion:reduce){._presence_zrom0_9 span{animation:none}}._results_th8hn_1{text-align:center;width:min(100%,36rem);padding:var(--space-7) 0}._kicker_th8hn_2{margin:0 0 var(--space-4);color:var(--color-muted);font-size:var(--font-size-xs);letter-spacing:.14em;text-transform:uppercase;font-weight:700}._results_th8hn_1 h1{font-family:var(--font-display);letter-spacing:-.05em;margin:0;font-size:clamp(2.4rem,7vw,5rem);font-weight:520;line-height:1}._results_th8hn_1 h1 span{margin-top:var(--space-2);color:var(--color-muted);font-family:var(--font-body);font-size:var(--font-size-xs);letter-spacing:.12em;display:block}._score_th8hn_5{margin-top:var(--space-6);font-family:var(--font-display);font-size:3rem}._score_th8hn_5 span{color:var(--color-muted);font-size:.48em}._rows_th8hn_7{gap:var(--space-2);margin:var(--space-5) auto;color:var(--color-accent-strong);letter-spacing:.22em;font-size:1.1rem;display:grid}._stats_th8hn_8{justify-content:center;gap:var(--space-7);margin:var(--space-6) 0;display:flex}._stats_th8hn_8 div{gap:var(--space-1);flex-direction:column-reverse;display:flex}._stats_th8hn_8 dt{color:var(--color-muted);font-size:var(--font-size-xs)}._stats_th8hn_8 dd{font-family:var(--font-display);margin:0;font-size:2rem}._share_th8hn_12{border-radius:var(--radius-pill);background:var(--color-text);min-width:10rem;color:var(--color-background);justify-content:space-between;gap:var(--space-5);cursor:pointer;transition:transform var(--motion-fast) var(--ease-out);border:0;padding:.85rem 1.1rem;font-weight:680;display:inline-flex}._share_th8hn_12:active{transform:scale(.97)}._replay_th8hn_14{margin:var(--space-4) auto 0;padding:var(--space-2);color:var(--color-muted);font-size:var(--font-size-xs);cursor:pointer;background:0 0;border:0;display:block}._notice_th8hn_15{min-height:1.5rem;margin:var(--space-3) 0 0;color:var(--color-success);font-size:var(--font-size-xs)}@media (height<=44rem){._results_th8hn_1{padding:var(--space-4) 0}._kicker_th8hn_2{margin-bottom:var(--space-2)}._score_th8hn_5{margin-top:var(--space-4)}._rows_th8hn_7{margin-block:var(--space-3)}._stats_th8hn_8{margin-block:var(--space-4)}._replay_th8hn_14{margin-top:var(--space-2)}._notice_th8hn_15{margin-top:var(--space-1)}}._stage_mhyjb_1{text-align:center;width:min(100%,50rem);min-height:min(42rem,100svh - 9rem);padding:var(--space-6) 0;flex-direction:column;justify-content:center;align-items:center;display:flex}._kicker_mhyjb_12{margin:0 0 var(--space-5);color:var(--color-muted);font-size:var(--font-size-xs);letter-spacing:.13em;text-transform:uppercase;font-weight:680}._lessonCue_mhyjb_21{min-height:1.5em;margin:calc(-1 * var(--space-3)) 0 var(--space-5);color:var(--color-accent-strong);font-family:var(--font-display);text-wrap:balance;font-size:clamp(1.05rem,2vw,1.35rem);line-height:1.35}._lessonCue_mhyjb_21[data-tone=thesis]{color:var(--color-text);font-style:italic}._expression_mhyjb_36{font-family:var(--font-display);font-size:var(--font-size-math);font-variant-numeric:lining-nums tabular-nums;letter-spacing:-.055em;justify-content:center;align-items:center;gap:clamp(.35rem,2vw,1.1rem);line-height:.9;display:flex}._times_mhyjb_48{color:var(--color-muted);font-size:.62em;font-weight:400}._recursiveExpression_mhyjb_50{letter-spacing:-.045em;flex-wrap:nowrap;gap:clamp(.25rem,1vw,.65rem);max-width:100%;font-size:clamp(2.8rem,10vw,6.4rem);line-height:1}._recursiveExpression_mhyjb_50[data-node-count="4"],._recursiveExpression_mhyjb_50[data-node-count="5"]{font-size:clamp(2.5rem,8vw,5rem)}._binaryOperator_mhyjb_64,._parenthesis_mhyjb_65{color:var(--color-muted);font-size:.62em;font-weight:400}._expressionNumber_mhyjb_71{min-width:1.2em}._operand_mhyjb_73{min-width:1.55em;color:var(--color-text);font:inherit;line-height:inherit;letter-spacing:inherit;cursor:pointer;transition:color var(--motion-fast) ease, border-color var(--motion-fast) ease, transform var(--motion-fast) var(--ease-out);background:0 0;border:0;border-bottom:2px solid #0000;padding:.08em .12em .15em;position:relative}._operand_mhyjb_73:active{transform:scale(.98)}._operand_mhyjb_73:disabled{cursor:default}._operand_mhyjb_73[data-selected=true]{color:var(--color-accent-strong);border-color:var(--color-accent)}._operand_mhyjb_73[data-prompted=true]{color:var(--color-accent-strong);border-color:var(--color-accent);animation:1.8s ease-in-out infinite _lesson-pulse_mhyjb_1}._plus_mhyjb_97{color:var(--color-accent-strong);font-family:var(--font-body);opacity:0;transition:opacity var(--motion-fast) ease, transform var(--motion-fast) var(--ease-out);font-size:.17em;font-weight:520;line-height:1;position:absolute;top:100%;left:50%;transform:translateY(-.2rem)}._operand_mhyjb_73:focus-visible ._plus_mhyjb_97,._operand_mhyjb_73[data-selected=true] ._plus_mhyjb_97{opacity:1;transform:translateY(0)}._operand_mhyjb_73[data-prominent=true] ._plus_mhyjb_97{opacity:.62;transform:translateY(0)}._operand_mhyjb_73[data-prompted=true] ._plus_mhyjb_97{opacity:1;transform:translateY(0)}@keyframes _lesson-pulse_mhyjb_1{0%,to{transform:translateY(0)}50%{transform:translateY(-.08em)}}._decomposition_mhyjb_122{width:min(100%,24rem);margin-top:var(--space-6);padding-top:var(--space-5);opacity:1;transition:opacity var(--motion-normal) ease, transform var(--motion-normal) var(--ease-out);position:relative;transform:translateY(0)}@starting-style{._decomposition_mhyjb_122{opacity:0;transform:translateY(-.5rem)}}._stem_mhyjb_133{width:1px;height:var(--space-4);background:var(--color-border-strong);position:absolute;top:0;left:50%}._decomposition_mhyjb_122 label{margin-bottom:var(--space-3);color:var(--color-muted);font-size:var(--font-size-xs);display:block}._decompositionRow_mhyjb_149{align-items:center;gap:var(--space-3);grid-template-columns:auto 1fr auto;display:grid}._equals_mhyjb_150{color:var(--color-muted);font-family:var(--font-display);font-size:1.5rem}._decomposition_mhyjb_122 input,._activeStep_mhyjb_153 input,._direct_mhyjb_154 input{border:0;border-bottom:1px solid var(--color-border-strong);min-width:0;color:var(--color-text);text-align:center;font-family:var(--font-display);font-variant-numeric:tabular-nums;transition:border-color var(--motion-fast) ease;background:0 0;border-radius:0;outline:0}._decomposition_mhyjb_122 input{width:100%;padding:.35rem .2rem;font-size:clamp(1.75rem,5vw,2.7rem)}._decomposition_mhyjb_122 input:focus,._activeStep_mhyjb_153 input:focus,._direct_mhyjb_154 input:focus{border-color:var(--color-accent-strong)}._decompositionRow_mhyjb_149 button,._activeStep_mhyjb_153 button,._answerLine_mhyjb_170 button{border:1px solid var(--color-border);width:2.4rem;height:2.4rem;color:var(--color-text);cursor:pointer;transition:transform var(--motion-fast) var(--ease-out), border-color var(--motion-fast) ease;background:0 0;border-radius:50%}._decompositionRow_mhyjb_149 button:active,._activeStep_mhyjb_153 button:active,._answerLine_mhyjb_170 button:active{transform:scale(.95)}._microcopy_mhyjb_176{margin:var(--space-2) 0 0;color:var(--color-muted);font-size:.7rem}._guided_mhyjb_178{width:min(100%,34rem);margin-top:var(--space-6)}._transformed_mhyjb_179{margin:0 0 var(--space-5);font-family:var(--font-display);font-size:var(--font-size-lg)}._steps_mhyjb_180{gap:var(--space-3);display:grid}._completedStep_mhyjb_181,._activeStep_mhyjb_153{align-items:center;gap:var(--space-3);text-align:right;min-height:3rem;font-size:var(--font-size-md);grid-template-columns:minmax(0,1fr) 7rem 2.4rem;display:grid}._completedStep_mhyjb_181>span,._activeStep_mhyjb_153>span{white-space:nowrap}._completedStep_mhyjb_181{color:var(--color-muted)}._completedStep_mhyjb_181 strong{color:var(--color-success);text-align:center;font-weight:650}._activeStep_mhyjb_153 input{width:100%;padding:.35rem;font-size:1.35rem}._activeStep_mhyjb_153[data-error=true] input{border-color:var(--color-feedback);animation:_nudge_mhyjb_1 .18s var(--ease-out)}._transformArea_mhyjb_191{justify-items:center;width:min(100%,42rem);display:grid}._transformAnnotation_mhyjb_197{min-height:1.4rem;margin:var(--space-5) 0 var(--space-3);color:var(--color-muted);font-size:var(--font-size-xs)}._transformExpression_mhyjb_204{font-family:var(--font-display);font-variant-numeric:lining-nums tabular-nums;letter-spacing:-.045em;animation:_expression-settle_mhyjb_1 var(--motion-normal) var(--ease-out);flex-wrap:wrap;justify-content:center;align-items:baseline;gap:.22em;font-size:clamp(2.3rem,8vw,5rem);line-height:1.08;display:flex}._transformExpression_mhyjb_204 span[data-sign=true]{color:var(--color-accent-strong);animation:_sign-settle_mhyjb_1 var(--motion-normal) var(--ease-out)}._transformExpression_mhyjb_204[data-kind=reorder] span:nth-child(odd){animation:_factor-shift-left_mhyjb_1 var(--motion-normal) var(--ease-out)}._transformExpression_mhyjb_204[data-kind=reorder] span:nth-child(2n){animation:_factor-shift-right_mhyjb_1 var(--motion-normal) var(--ease-out)}._transformExpression_mhyjb_204[data-kind=regroup] span:nth-child(-n+3){animation:_factor-group_mhyjb_1 var(--motion-normal) var(--ease-out)}._direct_mhyjb_154{width:min(100%,14rem);margin-top:var(--space-7)}._direct_mhyjb_154 label{color:var(--color-muted);font-size:var(--font-size-xs);display:block}._answerLine_mhyjb_170{align-items:center;gap:var(--space-3);margin-top:var(--space-2);grid-template-columns:1fr auto;display:grid}._direct_mhyjb_154 input{width:100%;padding:.35rem;font-size:1.75rem}._direct_mhyjb_154[data-error=true] input{border-color:var(--color-feedback);animation:_nudge_mhyjb_1 .18s var(--ease-out)}._feedback_mhyjb_241{margin:var(--space-3) 0 0;color:var(--color-feedback);font-size:var(--font-size-xs);line-height:1.45}._hintArea_mhyjb_242{min-height:3.25rem;margin-top:var(--space-5)}._hintButton_mhyjb_243{padding:var(--space-2);color:var(--color-muted);font-size:var(--font-size-xs);text-underline-offset:.25rem;cursor:pointer;background:0 0;border:0;text-decoration:underline}._hintText_mhyjb_244{max-width:24rem;margin:var(--space-2) auto 0;color:var(--color-muted);font-family:var(--font-display);font-style:italic;font-size:var(--font-size-sm)}._expressionHint_mhyjb_245{justify-items:center;gap:var(--space-2);display:grid}._hintAction_mhyjb_246{border:1px solid var(--color-border);border-radius:var(--radius-pill);color:var(--color-text);font-size:var(--font-size-xs);cursor:pointer;background:0 0;padding:.45rem .8rem}._reflection_mhyjb_256{margin-top:var(--space-7)}._settled_mhyjb_257{margin:0 0 var(--space-5);color:var(--color-success);font-family:var(--font-display);font-size:var(--font-size-lg)}._reflection_mhyjb_256 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