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.quiz-result-status{color:var(--accent)}.quiz-result-actions{flex-wrap:wrap;gap:12px;margin-top:28px;display:flex}.quiz-result-actions .button{white-space:normal;text-align:center}@media (max-width:950px){.quiz-result-elements{grid-template-columns:repeat(3,minmax(0,1fr))}.quiz-result-hero{gap:28px}}@media (max-width:680px){.quiz-card-complete{padding:22px 18px}.quiz-result-hero{grid-template-columns:minmax(0,1fr);gap:26px}.quiz-result-score{padding:22px}.quiz-result-number{margin:10px 0 6px}.quiz-result-meter{margin-top:16px}.quiz-result-summary h2{font-size:1.5rem}.quiz-result-elements{grid-template-columns:minmax(0,1fr);gap:9px}.content-section .quiz-result-element{grid-template-columns:48px minmax(0,1fr);align-items:center;gap:3px 14px;padding:13px 16px;display:grid}.quiz-result-element>strong{grid-row:1/3}.quiz-result-element-name{margin:0}.quiz-result-status{grid-column:2;margin:0}.quiz-result-actions>.button{width:100%}}.header-inner{flex-wrap:wrap;min-height:84px;padding-block:12px}.brand{flex-shrink:0;align-items:center;gap:12px;display:inline-flex}.brand-mark{background:var(--accent-fill);width:44px;height:44px;color:var(--accent-text);box-shadow:0 4px 12px var(--accent-fill);border-radius:14px;flex-shrink:0;place-items:center;padding:7px;display:grid;transform:rotate(-7deg)}@supports (color:color-mix(in lab, red, red)){.brand-mark{box-shadow:0 4px 12px color-mix(in srgb,var(--accent-fill) 15%,transparent)}}.brand-mark svg{width:100%;height:100%;transform:rotate(7deg)}.brand-type{flex-direction:column;gap:6px;min-width:0;display:flex}.brand-wordmark{font-family:var(--font-ui);letter-spacing:-.045em;white-space:nowrap;color:var(--text);font-size:1.4375rem;font-weight:550;line-height:1.15;display:block}.brand-wordmark .brand-domain{letter-spacing:inherit;color:var(--accent);font-size:1em;font-weight:800;display:inline}.brand-wordmark .brand-tld{letter-spacing:-.035em;color:var(--muted);font-size:.8em;font-weight:650}.brand-caption{letter-spacing:.14em;text-transform:uppercase;color:var(--muted);align-items:center;gap:7px;font-size:.5rem;font-weight:750;line-height:1.4;display:flex}.brand-caption:before{content:"";background:var(--accent);border-radius:2px;flex-shrink:0;width:16px;height:2px}.footer-brand{margin-bottom:16px;display:inline-block}.footer-brand .brand-wordmark{color:#ebf2ff;font-size:1.5rem}.footer-brand .brand-domain{color:#91bcff}.footer-brand .brand-tld{color:#b5c7e2}@media (max-width:1100px){.header-inner{gap:12px 18px;min-height:76px}.header-actions{gap:4px;margin-left:auto}.header-print{display:none}.menu-toggle{display:inline-flex}.main-nav{background:var(--surface);border-bottom:1px solid var(--line);box-shadow:var(--shadow);z-index:40;padding:12px 18px 18px;display:none;position:absolute;top:100%;left:0;right:0}.main-nav.is-open{flex-direction:column;align-items:stretch;gap:5px;display:flex}.main-nav>a{white-space:normal;min-height:44px;padding:11px 13px;font-size:.9375rem}.main-nav>.nav-print{display:flex}}@media (max-width:600px){.header-inner{gap:10px 8px;min-height:70px;padding-block:12px}.brand{gap:9px}.brand-mark{border-radius:10px;width:32px;height:32px;padding:5px}.brand-wordmark{font-size:clamp(.875rem,4.25vw,1.25rem)}.brand-caption{display:none}.header-actions{gap:0}.header-actions .icon-button{width:34px;height:40px}.footer-brand .brand-wordmark{font-size:clamp(.95rem,5vw,1.375rem)}}@media (max-width:360px){.brand{gap:7px}.brand-mark{border-radius:9px;width:28px;height:28px;padding:4px}}.accessibility-panel{overscroll-behavior:contain;scrollbar-gutter:stable;width:350px;max-height:calc(100dvh - 96px);padding:22px;overflow-y:auto}.accessibility-heading{justify-content:space-between;align-items:center;gap:12px;margin-bottom:20px;display:flex}.accessibility-heading h2{margin:0;line-height:1.4}.accessibility-heading .icon-button{flex-shrink:0;width:36px;height:36px}.accessibility-panel>label{font-weight:600;display:block}.accessibility-panel select{min-height:44px;margin:7px 0 17px}.accessibility-switches{border-top:1px solid var(--line);margin-top:4px;padding-top:5px}.switch-row{cursor:pointer;justify-content:space-between;align-items:center;gap:18px;min-height:52px;display:flex}.switch-row>span{min-width:0}.switch-input[type=checkbox]{appearance:none;border:1px solid var(--muted);background:var(--surface-2);cursor:pointer;border-radius:30px;flex-shrink:0;width:46px;height:26px;min-height:0;margin:0;padding:0;transition:background .15s,border-color .15s;position:relative}.switch-input:before{content:"";background:var(--muted);border-radius:50%;width:16px;height:16px;transition:transform .15s;position:absolute;top:4px;left:4px}.switch-input:checked{background:var(--accent-fill);border-color:var(--accent-fill)}.switch-input:checked:before{background:var(--accent-text);transform:translate(20px)}.switch-input:disabled{cursor:not-allowed;border-style:dashed}.switch-row:has(:disabled){color:var(--muted);cursor:default}.accessibility-note{color:var(--muted);margin:0 0 10px;font-size:.75rem}.accessibility-panel .button{white-space:normal}.footer-signature,.footer-links,.footer-links nav{min-width:0}.footer-brand{overflow-wrap:anywhere;max-width:100%}.footer-brand span{display:inline-block}@media screen{:root[data-letter-spacing=medium]{--reading-letter-spacing:.06em}:root[data-letter-spacing=large]{--reading-letter-spacing:.12em}:root[data-line-spacing=medium]{--reading-line-height:1.9}:root[data-line-spacing=large]{--reading-line-height:2.2}:root:is([data-letter-spacing=medium],[data-letter-spacing=large]) body :not(svg,svg *,.material-symbols-rounded){letter-spacing:var(--reading-letter-spacing)!important}:root:is([data-line-spacing=medium],[data-line-spacing=large]) body :not(svg,svg *,.material-symbols-rounded){line-height:var(--reading-line-height)!important}:is(.print-preview,#print-output) svg{letter-spacing:normal;line-height:normal}:root:is([data-line-spacing=medium],[data-line-spacing=large]) .periodic-grid{grid-template-rows:auto repeat(7,minmax(4.25rem,max-content)) 12px repeat(2,minmax(4.25rem,max-content))}:root[data-letter-spacing=medium] .periodic-grid{min-width:69rem}:root[data-letter-spacing=large] .periodic-grid{min-width:77rem}:root:is([data-letter-spacing=medium],[data-letter-spacing=large],[data-line-spacing=medium],[data-line-spacing=large]) :is(.view-toolbar,.view-tabs,.table-footnote,.atom-controls,.atom-stage-label){flex-wrap:wrap}:root:is([data-letter-spacing=medium],[data-letter-spacing=large],[data-line-spacing=medium],[data-line-spacing=large]) .example-cell{width:auto;min-width:74px;height:auto}:root:is([data-letter-spacing=medium],[data-letter-spacing=large],[data-line-spacing=medium],[data-line-spacing=large]) :is(.detail-title h2,.content-section h1,.learn-copy h2){overflow-wrap:anywhere}:root:is([data-letter-spacing=medium],[data-letter-spacing=large],[data-line-spacing=medium],[data-line-spacing=large]) .material-links{grid-template-columns:1fr}:root.high-contrast{color-scheme:dark;--bg:#000!important;--surface:#000!important;--surface-2:#000!important;--text:#ffe600!important;--muted:#ffe600!important;--line:#ffe600!important;--accent:#ffe600!important;--accent-fill:#ffe600!important;--accent-soft:#000!important;--accent-text:#000!important;--selected-ink:#000!important;--shadow:none!important}.high-contrast body,.high-contrast body :not(svg,svg *,img,canvas){color:#ffe600!important;text-shadow:none!important;box-shadow:none!important;background-color:#000!important;background-image:none!important;border-color:#ffe600!important}.high-contrast :is(button,input,select,textarea){accent-color:#ffe600}.high-contrast input::placeholder{opacity:1;color:#ffe600!important}.high-contrast :is(button,a,input,select,summary):focus-visible{outline-offset:4px;outline:3px dashed #ffe600!important}.high-contrast :is(a,button,summary):hover{text-decoration:underline}.high-contrast :is(.element.selected,.element.selected *,.view-tabs .active,.legend-button[aria-pressed=true],.quiz-choice.correct,.quiz-choice.correct *,#toast,#toast *){color:#000!important;background:#ffe600!important}.high-contrast .element{border-width:2px}.high-contrast .element.filtered-out{opacity:1;border-style:dashed;border-color:#918300!important}.high-contrast .element.filtered-out:not(.selected),.high-contrast .element.filtered-out:not(.selected) *{color:#b8a600!important}.high-contrast :is(.element-name,.element-number,.element-mass){font-weight:600}.high-contrast .legend-button:before,.high-contrast .quiz-progress span{background:#ffe600!important}.high-contrast .legend-button[aria-pressed=true]:before{background:#000!important}.high-contrast .switch-input:before,.high-contrast .switch-input:checked{background:#ffe600!important}.high-contrast .switch-input:checked:before{background:#000!important}.high-contrast .quiz-choice.wrong{border-style:dashed;border-width:2px}.high-contrast .quiz-choice:before{color:inherit}.high-contrast :disabled{opacity:1}.high-contrast .theme-toggle:disabled{cursor:not-allowed;border:1px dashed #ffe600}}@media (prefers-reduced-motion:reduce){.switch-input,.switch-input:before{transition:none}}@media screen and (max-width:520px){.config-panel{grid-template-columns:minmax(0,1fr)}.config-panel h2,.config-actions{grid-column:auto}}@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-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}