@font-face{font-family:IBM Plex Sans;font-weight:400;font-style:normal;font-display:swap;src:local(IBM Plex Sans),local(IBMPlexSans-Regular),url(/fonts/IBMPlexSans-Regular.woff2)format("woff2")}@font-face{font-family:IBM Plex Sans;font-weight:500;font-style:normal;font-display:swap;src:local(IBM Plex Sans Medium),local(IBMPlexSans-Medium),url(/fonts/IBMPlexSans-Medium.woff2)format("woff2")}@font-face{font-family:IBM Plex Sans;font-weight:600;font-style:normal;font-display:swap;src:local(IBM Plex Sans SemiBold),local(IBMPlexSans-SemiBold),url(/fonts/IBMPlexSans-SemiBold.woff2)format("woff2")}@font-face{font-family:IBM Plex Sans;font-weight:700;font-style:normal;font-display:swap;src:local(IBM Plex Sans Bold),local(IBMPlexSans-Bold),url(/fonts/IBMPlexSans-Bold.woff2)format("woff2")}@font-face{font-family:IBM Plex Mono;font-weight:500;font-style:normal;font-display:swap;src:local(IBM Plex Mono Medium),local(IBMPlexMono-Medium),url(/fonts/IBMPlexMono-Medium.woff2)format("woff2")}@font-face{font-family:IBM Plex Mono;font-weight:600;font-style:normal;font-display:swap;src:local(IBM Plex Mono SemiBold),local(IBMPlexMono-SemiBold),url(/fonts/IBMPlexMono-SemiBold.woff2)format("woff2")}:root{--ink:#20242b;--ink-mute:#5b6169;--paper:#f2f3f1;--panel:#fff;--line:#d8d9d5;--teal:#2f6f63;--teal-tint:#e7f0ee;--charcoal:#23262b;--amber:#b8862b;--amber-tint:#fbf1df;--ok:#3e8a5e;--ok-tint:#e9f4ec;--bad:#b23b3b;--bad-tint:#fbeaea;--focus:#2f6f63;--ctl:#84877f;--oktext:#2b6a43;--on-teal:#fff;--font-ui:"IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-data:"IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;--text-scale:1}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--ink:#edeeec;--ink-mute:#9a9fa6;--paper:#17181a;--panel:#1e2022;--line:#34373a;--teal:#6fbbaa;--teal-tint:#1d2c29;--charcoal:#101214;--amber:#e0ae5c;--amber-tint:#2b2419;--ok:#7fc79a;--ok-tint:#1b2b21;--bad:#e58a85;--bad-tint:#2e1d1d;--focus:#6fbbaa;--ctl:#80858c;--oktext:#7fc79a;--on-teal:#10201c}}:root[data-theme=dark]{--ink:#edeeec;--ink-mute:#9a9fa6;--paper:#17181a;--panel:#1e2022;--line:#34373a;--teal:#6fbbaa;--teal-tint:#1d2c29;--charcoal:#101214;--amber:#e0ae5c;--amber-tint:#2b2419;--ok:#7fc79a;--ok-tint:#1b2b21;--bad:#e58a85;--bad-tint:#2e1d1d;--focus:#6fbbaa;--ctl:#80858c;--oktext:#7fc79a;--on-teal:#10201c}*,:before,:after{box-sizing:border-box}html{font-size:calc(100% * var(--text-scale,1))}html,body{background:var(--paper);color:var(--ink);margin:0}body{font-family:var(--font-ui);padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px);line-height:1.5}:focus-visible{outline:2px solid var(--focus);outline-offset:2px}.muted{color:var(--ink-mute)}.qb-page{max-width:45rem;color:var(--ink);font-family:var(--font-ui);margin:0 auto;padding:1.5rem 1rem 5rem}.qb-data{font-family:var(--font-data);font-weight:600}.qb-sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.qb-title{margin:0 0 .25rem;font-size:1.5rem;font-weight:600}.qb-lede{color:var(--ink-mute);max-width:35rem;margin:0 0 1.5rem;line-height:1.6}.qb-section-title{margin:2rem 0 .75rem;font-size:1.125rem;font-weight:600}.qb-card{background:var(--panel);border:1px solid var(--line);border-radius:.5rem}.qb-btn{font-family:var(--font-ui);border:1px solid var(--ctl);background:var(--panel);min-height:2.75rem;color:var(--ink);cursor:pointer;border-radius:.5rem;justify-content:center;align-items:center;gap:.5rem;padding:.625rem 1.125rem;font-size:1rem;font-weight:600;display:inline-flex}.qb-btn-primary{background:var(--teal);border-color:var(--teal);color:var(--on-teal)}.qb-btn-secondary{border-color:var(--teal);color:var(--teal);background:0 0}.qb-btn-ghost{color:var(--ink-mute);background:0 0;border-color:#0000;font-weight:500}.qb-btn:disabled{opacity:.4;cursor:default}.qb-btn:focus-visible,.qb-page [tabindex="-1"]:focus-visible{outline:2px solid var(--focus);outline-offset:2px}.qb-page [tabindex="-1"]{outline:none}.qb-list{margin:0;padding:0;list-style:none}.qb-row{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:1rem;padding:.75rem 1rem;display:flex}.qb-row:last-child{border-bottom:none}.qb-state{padding:1.5rem 1.25rem}.qb-state-title{margin:0 0 .25rem;font-size:1.125rem;font-weight:600}.qb-state-message{color:var(--ink-mute);margin:.25rem 0 0}.qb-state-detail{color:var(--ink-mute);font-family:var(--font-data);overflow-wrap:anywhere;margin:.5rem 0 0;font-size:.8125rem}.qb-state-actions{flex-wrap:wrap;gap:.75rem;margin-top:1rem;display:flex}.qb-modebar{background:var(--teal-tint);color:var(--teal);border-radius:.5rem;justify-content:space-between;align-items:center;gap:1rem;padding:.75rem 1rem;font-size:.9375rem;display:flex}.qb-modebar-title{font-size:inherit;margin:0;font-weight:600}.qb-progress{background:var(--line);border-radius:.1875rem;height:.375rem;margin-top:.75rem;overflow:hidden}.qb-progress i{background:var(--teal);height:100%;display:block}.qb-counter{color:var(--ink-mute);margin:1rem 0 0;font-size:.875rem}.qb-question{margin:.5rem 0 1.25rem;font-size:1.1875rem;font-weight:500;line-height:1.5}.qb-options{gap:.5rem;display:grid}.qb-option{border:1px solid var(--ctl);background:var(--panel);cursor:pointer;border-radius:.5rem;align-items:flex-start;gap:.75rem;min-height:2.75rem;padding:.75rem .875rem;display:flex;position:relative}.qb-option input{opacity:0;cursor:pointer;width:100%;height:100%;margin:0;position:absolute;inset:0}.qb-option input:disabled{cursor:default}.qb-option:has(input:focus-visible){outline:2px solid var(--focus);outline-offset:2px}.qb-badge{border:1px solid var(--ctl);width:1.5rem;height:1.5rem;font-family:var(--font-data);color:var(--ink-mute);border-radius:.25rem;flex:none;justify-content:center;align-items:center;font-size:.875rem;font-weight:600;display:flex}.qb-option-body{flex-direction:column;gap:.125rem;line-height:1.5;display:flex}.qb-option.is-selected{border-color:var(--teal);background:var(--teal-tint)}.qb-option.is-selected .qb-badge{background:var(--teal);border-color:var(--teal);color:var(--on-teal)}.qb-option.is-correct{border-color:var(--ok);background:var(--ok-tint)}.qb-option.is-correct .qb-badge{background:var(--oktext);border-color:var(--oktext);color:var(--on-teal)}.qb-option.is-wrong{border-color:var(--bad);background:var(--bad-tint)}.qb-option.is-wrong .qb-badge{background:var(--bad);border-color:var(--bad);color:var(--on-teal)}.qb-status{font-size:.875rem;font-weight:600}.qb-option.is-correct .qb-status{color:var(--oktext)}.qb-option.is-wrong .qb-status{color:var(--bad)}.qb-feedback{border-radius:.5rem;margin:1rem 0 0;padding:.875rem 1rem}.qb-feedback.is-ok{background:var(--ok-tint);color:var(--oktext)}.qb-feedback.is-bad{background:var(--bad-tint);color:var(--bad)}.qb-feedback p{color:var(--ink);margin:.25rem 0 0;line-height:1.6}.qb-feedback .qb-feedback-title{color:inherit;margin:0;font-weight:600}.qb-actions{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.75rem;margin-top:1.25rem;display:flex}.qb-stats{grid-template-columns:repeat(auto-fit,minmax(8rem,1fr));gap:.75rem;display:grid}.qb-stat{padding:1rem}.qb-stat-value{font-size:1.5rem}.qb-stat-label{color:var(--ink-mute);font-size:.875rem}.qb-review{gap:.75rem;margin:0;padding:0;list-style:none;display:grid}.qb-review-item{padding:1rem}.qb-review-item p{margin:.25rem 0 0;line-height:1.5}.qb-review-question{margin-top:0;font-weight:600}.qb-review-key,.qb-review-explain{color:var(--ink-mute)}@media (prefers-reduced-motion:reduce){.qb-page *{transition:none!important;animation:none!important}}@media (forced-colors:active){.qb-option.is-selected,.qb-option.is-correct{border:2px solid highlight}.qb-option.is-wrong{border:2px dashed canvastext}}.qb-form{gap:1.25rem;padding:1.25rem;display:grid}.qb-field{gap:.375rem;display:grid}.qb-field label,.qb-fieldset legend{font-size:.9375rem;font-weight:600}.qb-select{border:1px solid var(--ctl);background:var(--panel);width:100%;min-height:2.75rem;color:var(--ink);font:inherit;border-radius:.5rem;padding:.5rem .75rem}.qb-fieldset{border:0;gap:.5rem;min-width:0;margin:0;padding:0;display:grid}.qb-fieldset legend{margin-bottom:.5rem;padding:0}.qb-radio{border:1px solid var(--ctl);background:var(--panel);cursor:pointer;border-radius:.5rem;align-items:center;gap:.75rem;min-height:2.75rem;padding:.5rem .875rem;display:flex}.qb-radio input{width:1.25rem;height:1.25rem;accent-color:var(--teal);margin:0}.qb-radio:has(input:checked){border-color:var(--teal);background:var(--teal-tint)}.qb-radio:has(input:focus-visible){outline:2px solid var(--focus);outline-offset:2px}.qb-note{color:var(--ink-mute);margin:0;line-height:1.6}.qb-note strong{color:var(--ink)}.qb-field-error{color:var(--bad);margin:0;font-weight:600}.qb-actions-start{justify-content:flex-start}.qb-form .qb-actions{margin-top:0}.qb-scope{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.75rem 1rem;margin-bottom:1rem;padding:.75rem 1rem;display:flex}.qb-scope-line{margin:0;line-height:1.5}.qb-count{color:var(--ink-mute);font-size:.875rem}@media (forced-colors:active){.qb-radio:has(input:checked){border:2px solid highlight}}.qb-card-title{margin:0 0 .125rem;font-size:1.0625rem;font-weight:600}.qb-section-title-tight{margin-top:1.5rem}.qb-summary{grid-template-columns:repeat(auto-fit,minmax(9rem,1fr));gap:1rem;margin:0;padding:1rem 1.25rem;display:grid}.qb-summary dt{color:var(--ink-mute);font-size:.875rem}.qb-summary dd{margin:.125rem 0 0;font-size:1.125rem}.qb-notice{background:var(--teal-tint);color:var(--teal);border-radius:.5rem;margin:1rem 0 0;padding:.75rem 1rem;font-weight:500;line-height:1.5}.qb-table-wrap{overflow-x:auto}.qb-table{border-collapse:collapse;width:100%}.qb-table th,.qb-table td{text-align:left;border-bottom:1px solid var(--line);vertical-align:middle;padding:.625rem 1rem}.qb-table thead th{color:var(--ink-mute);font-size:.875rem;font-weight:500}.qb-table tbody th{font-weight:400}.qb-table tbody tr:last-child th,.qb-table tbody tr:last-child td{border-bottom:none}.qb-switch{align-items:flex-start;gap:.75rem;display:flex}.qb-switch input{width:1.375rem;height:1.375rem;accent-color:var(--teal);flex:none;margin:.125rem 0 0}.qb-switch input:disabled{cursor:default}.qb-switch input:focus-visible{outline:2px solid var(--focus);outline-offset:2px}.qb-switch-title{cursor:pointer;font-weight:600;display:block}.qb-switch .qb-note{display:block}.qb-instructions{color:var(--ink-mute);margin:0 0 1.5rem;padding-left:1.25rem;line-height:1.6}.qb-instructions li{margin-bottom:.375rem}.qb-dialog{border:1px solid var(--line);background:var(--panel);width:min(26rem,100vw - 2rem);color:var(--ink);font-family:var(--font-ui);border-radius:.625rem;padding:1.25rem}.qb-dialog::backdrop{background:#0000008c}.qb-dialog-title{margin:0 0 .5rem;font-size:1.125rem;font-weight:600}.qb-dialog-body p{margin:.375rem 0 0;line-height:1.6}.qb-dialog-actions{flex-wrap:wrap;justify-content:flex-end;gap:.75rem;margin-top:1.25rem;display:flex}.qb-page:has(.qb-exam){background:var(--charcoal);max-width:none;padding:0}.qb-exam{--exam-text:#f2f3f1;--exam-mute:#b9bdc2;--exam-opt:#2b2f35;--exam-border:#868b92;--exam-sel:#1f3a35;--exam-teal:#6fbbaa;--exam-on-teal:#10201c;background:var(--charcoal);min-height:100dvh;color:var(--exam-text)}.qb-exam-header{border-bottom:1px solid #33373c;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.5rem 1.25rem;padding:.75rem 1rem;display:flex}.qb-exam-title{flex:14rem;margin:0;font-size:1rem;font-weight:600}.qb-timer{align-items:baseline;gap:.5rem;display:flex}.qb-timer-label{color:var(--exam-mute);font-size:.875rem}.qb-timer-value{font-size:1.375rem}.qb-timer-warning{font-size:.875rem;font-weight:600}.qb-timer.is-low .qb-timer-value,.qb-timer.is-low .qb-timer-warning{color:var(--amber)}.qb-exam-header-actions{gap:.5rem;display:flex}.qb-exam-body{grid-template-columns:minmax(0,1fr) 16rem;gap:1.5rem 2rem;max-width:64rem;margin:0 auto;padding:1.5rem 1rem 4rem;display:grid}.qb-exam .qb-counter{color:var(--exam-mute);margin-top:0}.qb-exam-subject{font-family:var(--font-ui);font-weight:400}.qb-exam .qb-btn{border-color:var(--exam-border);color:var(--exam-text);background:0 0}.qb-exam .qb-btn-primary{background:var(--exam-teal);border-color:var(--exam-teal);color:var(--exam-on-teal)}.qb-exam .qb-btn-ghost{color:var(--exam-mute);border-color:#0000}.qb-exam .qb-btn.is-pressed{border:2px solid var(--amber);color:var(--amber)}.qb-exam :focus-visible,.qb-exam [tabindex="-1"]:focus-visible{outline-color:var(--exam-teal)}.qb-exam .qb-option:has(input:focus-visible){outline-color:var(--exam-teal)}.qb-exam .qb-option{background:var(--exam-opt);border-color:var(--exam-border);color:var(--exam-text)}.qb-exam .qb-badge{border-color:var(--exam-border);color:var(--exam-mute)}.qb-exam .qb-option.is-selected{background:var(--exam-sel);border-color:var(--exam-teal)}.qb-exam .qb-option.is-selected .qb-badge{background:var(--exam-teal);border-color:var(--exam-teal);color:var(--exam-on-teal)}.qb-exam-actions{flex-wrap:wrap;gap:.75rem;margin-top:1.25rem;display:flex}.qb-actions-end{margin-left:auto}.qb-palette-title{color:var(--exam-mute);margin:0 0 .5rem;font-size:.875rem;font-weight:600}.qb-palette-heading{color:var(--exam-mute);margin:1rem 0 .375rem;font-size:.8125rem;font-weight:600}.qb-palette-grid{grid-template-columns:repeat(auto-fill,minmax(2.75rem,1fr));gap:.375rem;margin:0;padding:0;list-style:none;display:grid}.qb-pn{border:1px solid var(--exam-border);background:var(--exam-opt);width:100%;min-height:2.75rem;color:var(--exam-text);font-family:var(--font-data);cursor:pointer;border-radius:.25rem;font-size:.875rem;font-weight:600;position:relative}.qb-pn.is-answered{background:var(--exam-teal);border-color:var(--exam-teal);color:var(--exam-on-teal)}.qb-pn.is-marked{border:2px solid var(--amber)}.qb-pn.is-marked:after{content:"";background:var(--amber);border-radius:50%;width:.5rem;height:.5rem;position:absolute;top:.1875rem;right:.1875rem}.qb-pn.is-current{outline:2px solid var(--exam-text);outline-offset:2px}.qb-palette-summary{color:var(--exam-mute);margin:1rem 0 0;font-size:.8125rem;line-height:1.6}.qb-legend{color:var(--exam-mute);margin:.5rem 0 0;padding:0;font-size:.8125rem;line-height:1.7;list-style:none}@media (width<=52rem){.qb-exam-body{grid-template-columns:minmax(0,1fr)}}.qb-results-note{margin-top:.75rem}.qb-bar-cell{align-items:center;gap:.75rem;display:flex}.qb-bar{background:var(--line);border-radius:.1875rem;flex:auto;min-width:4rem;height:.375rem;overflow:hidden}.qb-bar i{background:var(--teal);height:100%;display:block}.qb-review-subject{color:var(--ink-mute);font-size:.875rem}@media (forced-colors:active){.qb-exam .qb-option.is-selected,.qb-pn.is-answered{border:2px solid highlight}.qb-pn.is-marked,.qb-exam .qb-btn.is-pressed{border:2px dashed canvastext}}:root{--shell-max-width:60rem}.qb-skip{z-index:100;background:var(--teal);min-height:2.75rem;color:var(--on-teal);border-radius:.375rem;align-items:center;padding:.5rem 1rem;font-weight:600;text-decoration:none;display:inline-flex;position:absolute;top:.5rem;left:.5rem;transform:translateY(-200%)}.qb-skip:focus{outline:2px solid var(--ink);outline-offset:2px;transform:none}#main:focus{outline:none}.qb-app-header{background:var(--panel);border-bottom:1px solid var(--line)}.qb-app-header-inner{min-height:3.5rem;max-width:var(--shell-max-width);flex-wrap:wrap;align-items:center;gap:.5rem 1rem;margin:0 auto;padding:.5rem 1rem;display:flex}.qb-brand{min-height:2.75rem;color:var(--ink);font:inherit;background:0 0;border:0;align-items:center;gap:.5rem;margin:0;padding:0 .25rem;font-size:1.0625rem;font-weight:700;display:inline-flex}button.qb-brand{cursor:pointer;border-radius:.375rem}.qb-brand-mark{flex:none;width:1.75rem;height:1.75rem;display:block}.qb-brand-mark--dark{display:none}@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .qb-brand-mark--light{display:none}:root:not([data-theme=light]) .qb-brand-mark--dark{display:block}}:root[data-theme=dark] .qb-brand-mark--light{display:none}:root[data-theme=dark] .qb-brand-mark--dark{display:block}.qb-app-header-end{flex-wrap:wrap;align-items:center;gap:.5rem .75rem;min-width:0;margin-left:auto;display:flex}.qb-app-region{background:var(--teal-tint);color:var(--teal);border:1px solid #0000;border-radius:.25rem;margin:0;padding:.25rem .625rem;font-size:.875rem;font-weight:600}:is(.qb-app:has(.qb-exam)>.qb-skip,.qb-app:has(.qb-exam)>.qb-app-header){display:none}
