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img{width:40px;height:40px}.runner__title{letter-spacing:-.03em;font-size:1.375rem;line-height:1.2}.runner__title:focus{outline:none}.runner__scenario{color:var(--color-muted)}.runner__question{color:var(--color-ink);font-weight:600}.runner__block .log__list{font-family:var(--font-sans);padding:0;font-size:14px}.runner__block .log__row{padding:10px 28px}.runner__block .log__step{flex:auto;font-weight:500}.runner__block .log__note{flex:none;font-size:13px}.runner__main{flex-direction:column;gap:24px;min-width:0;padding:clamp(32px,6vw,72px) clamp(20px,5vw,64px);display:flex}@media (width>=900px){.runner__side{border-bottom:0;border-right:1px solid var(--color-line)}}@media (width<=899px){.runner__block{padding:24px 20px}}.step-track{grid-auto-columns:minmax(0,1fr);grid-auto-flow:column;gap:4px;max-width:460px;display:grid}.step-track span{background:#262626;border-radius:2px;height:3px}.step-track .is-done{background:var(--color-ink)}.step-track .is-current{background:var(--color-accent)}.context{flex-direction:column;gap:12px;display:flex}.context__scenario{color:var(--color-muted)}.context__data{border:1px solid var(--color-line);border-radius:8px;font-size:14px}.context__data>div{border-bottom:1px solid var(--color-line);justify-content:space-between;gap:16px;padding:10px 14px;display:flex}.context__data>div:last-child{border-bottom:0}.context__data dt{color:var(--color-muted);white-space:nowrap}.context__data dd{font-family:var(--font-mono);text-align:right}.context__data dd span{font-family:var(--font-sans);color:var(--color-muted);font-size:13px}.context__data--reveal{background:var(--color-surface)}.context__pending{color:var(--color-muted)}.data-chart{border:1px solid var(--color-line);border-radius:8px;flex-direction:column;gap:8px;padding:14px;font-size:13px;display:flex}.data-chart figcaption{font-weight:500}.data-chart__axis{color:var(--color-muted)}.data-chart__row{grid-template-columns:56px minmax(0,1fr) auto;align-items:center;gap:10px;display:grid}.data-chart__track{background:var(--color-active);border-radius:2px;height:10px}.data-chart__track span{background:var(--color-ink-soft);border-radius:2px;height:100%;display:block}.data-chart__row strong{font-family:var(--font-mono);font-weight:400}.diagnostic-shell .runner__side .runner__title{margin-top:-6px}.step-panel{flex-direction:column;gap:24px;max-width:640px;display:flex}.step-panel__header{flex-direction:column;gap:8px;display:flex}.step-panel__cue{color:var(--color-muted)}.step-panel__header h2{letter-spacing:-.045em;font-size:clamp(1.75rem,3.2vw,2.5rem);line-height:1.1}.step-panel__header h2:focus{outline:none}.step-panel form{flex-direction:column;gap:16px;display:flex}.choices{flex-direction:column;gap:8px;display:flex}.choice{border-radius:var(--radius);background:var(--color-bg);cursor:pointer;min-height:60px;transition:border-color .16s var(--ease), background-color .16s var(--ease);border:1px solid #262626;align-items:center;gap:14px;padding:10px 16px;display:flex;position:relative}.choice:hover{border-color:var(--color-line-strong)}.choice input{opacity:0;pointer-events:none;position:absolute}.choice:has(input:focus-visible){outline:2px solid var(--color-accent);outline-offset:2px}.choice.is-selected{border-color:var(--color-accent);background:var(--color-accent-bg)}.choice.is-correct{border-color:var(--color-success);background:#08130d}.choices:disabled .choice{cursor:default}.choice-index{flex:none;place-items:center;width:32px;height:32px;display:grid}.choice-index__image{object-fit:contain;width:32px;height:32px}.choice-index__fallback{font-family:var(--font-mono);color:var(--color-muted)}.choice-label{flex:1}.choice-status{color:var(--color-accent);white-space:nowrap;font-size:12px}.choice.is-correct .choice-status{color:var(--color-success)}.numeric-field{flex-direction:column;gap:8px;max-width:460px;display:flex}.numeric-field__label{gap:6px;font-size:14px;font-weight:500;display:flex}.numeric-field__label span{color:var(--color-muted);font-weight:400}.numeric-input-wrap{border-radius:var(--radius);background:var(--color-surface);min-height:72px;font-family:var(--font-mono);transition:border-color .16s var(--ease);border:1px solid #262626;align-items:center;gap:10px;padding:0 20px;font-size:30px;display:flex}.numeric-input-wrap:focus-within{border-color:var(--color-accent)}.numeric-input-wrap input{min-width:0;font-family:var(--font-mono);font-size:inherit;background:0 0;border:0;outline:none;flex:1}.numeric-input-wrap__prefix,.numeric-input-wrap__suffix{color:var(--color-muted)}.numeric-input-wrap__suffix{font-size:18px}.input-help{color:var(--color-muted);font-size:13px}.validation-message{min-height:1.4em;color:var(--color-accent);font-size:14px}.validation-message:empty{min-height:0}.answer-actions{flex-wrap:wrap;gap:10px;display:flex}.answer-actions .button-primary{min-width:160px}.answer-actions__icon-button{gap:8px}.answer-actions__icon-button.button-quiet{border-color:var(--color-line-strong);color:var(--color-ink)}.debug-block{border:1px solid var(--color-line);border-radius:var(--radius);background:var(--color-surface);font-family:var(--font-mono);white-space:pre-wrap;margin:0;font-size:14px;line-height:1.7;overflow-x:auto}.debug-block__header{border-bottom:1px solid var(--color-line);color:var(--color-muted);justify-content:space-between;gap:16px;padding:10px 16px;font-size:12px;display:flex}.debug-block code{color:var(--color-ink-soft);padding:14px 16px;display:block}.feedback-dialog{border:1px solid var(--color-line-strong);border-radius:var(--radius);background:var(--color-surface);width:min(520px,100vw - 32px);max-height:calc(100svh - 48px);color:var(--color-ink);padding:0;box-shadow:0 32px 64px -16px #000000e6}.feedback-dialog::backdrop{background:#000000b8}.feedback-dialog[open]{animation:dialog-in .2s var(--ease)}.feedback-dialog__inner{flex-direction:column;display:flex}.feedback-dialog__header{border-bottom:1px solid var(--color-line);align-items:center;gap:12px;padding:16px 20px;display:flex}.feedback-dialog__header>div{flex-direction:column;display:flex}.feedback-dialog__eyebrow{font-family:var(--font-mono);color:var(--color-muted);font-size:12px}.feedback-dialog__header h2{letter-spacing:-.02em;font-size:18px}.feedback-dialog__inner>div:nth-child(2),.feedback-dialog__inner>p{flex-direction:column;gap:12px;padding:18px 20px 4px;display:flex}.feedback-dialog__feedback{color:var(--color-ink)}.feedback-dialog__solution{font-family:var(--font-mono);font-size:14px}.feedback-dialog__explanation{border:1px solid var(--color-line);background:var(--color-bg);color:var(--color-muted);border-radius:8px;padding:12px 14px;font-size:14px}.step-next{justify-content:flex-end;padding:16px 20px 20px;display:flex}@keyframes dialog-in{0%{opacity:0;transform:translateY(8px)}}.storage-notice{padding:16px var(--pad);border-bottom:1px solid var(--color-line);background:var(--color-accent-bg);flex-direction:column;gap:4px;font-size:14px;display:flex}.storage-notice strong{color:var(--color-accent);font-weight:600}.storage-notice p{color:var(--color-muted)}.empty-state{padding:clamp(40px, 6vw, 72px) var(--pad);flex-direction:column;align-items:flex-start;gap:14px;display:flex}.empty-state p{color:var(--color-muted)}::view-transition-old(root),::view-transition-new(root){animation-duration:.18s}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!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-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}@property --tw-backdrop-blur{syntax:"*";inherits:false}@property --tw-backdrop-brightness{syntax:"*";inherits:false}@property --tw-backdrop-contrast{syntax:"*";inherits:false}@property --tw-backdrop-grayscale{syntax:"*";inherits:false}@property --tw-backdrop-hue-rotate{syntax:"*";inherits:false}@property --tw-backdrop-invert{syntax:"*";inherits:false}@property --tw-backdrop-opacity{syntax:"*";inherits:false}@property --tw-backdrop-saturate{syntax:"*";inherits:false}@property --tw-backdrop-sepia{syntax:"*";inherits:false}@property --tw-ease{syntax:"*";inherits:false}.astro-route-announcer{clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;top:0;left:0;overflow:hidden}