:root{--ui-font:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;--ui-radius-card:0px;--ui-radius-control:var(--radius-control,4px);--ui-border:var(--color-border);--ui-surface:var(--color-surface);--ui-bg:var(--color-bg);--ui-color-panel-divider:var(--color-divider-hairline);--ui-color-flat-card-bg:var(--color-surface);--ui-color-flat-card-shadow:0 1px 3px rgba(15,23,42,0.08),0 1px 2px rgba(15,23,42,0.05);--ui-color-flat-card-border:var(--color-border);--ui-space-1:4px;--ui-space-2:8px;--ui-space-3:12px;--ui-space-4:16px;--ui-space-5:20px;--ui-color-brand-ivory:#FFF8E9;--ui-color-nav-bg:#E4EFF6;--ui-color-nav-text:#1D3B5C;--ui-color-nav-border:#BFD5E3;--ui-color-action-bg:#3F7D5C;--ui-color-action-text:#FFFFFF;--ui-color-action-hover-bg:#356B4E;--ui-color-action-active-bg:#2D5B42;--ui-color-cancel-bg:#74838F;--ui-color-cancel-text:#FFFFFF;--ui-tag-question-bg:#E9EEF1;--ui-tag-question-text:#3E5360;--ui-tag-category-bg:#D9EFC5;--ui-tag-category-text:#41603B;--ui-tag-type-bg:#DCECF7;--ui-tag-type-text:#315D78;--ui-tag-difficulty-bg:#E8DDF2;--ui-tag-difficulty-text:#624B74;--ui-status-success-bg:var(--color-success-bg);--ui-status-success-text:var(--color-success);--ui-status-warning-bg:var(--color-warning-bg);--ui-status-warning-text:var(--color-warning);--ui-status-error-bg:var(--color-danger-bg);--ui-status-error-text:var(--color-danger);--ui-status-neutral-bg:var(--color-neutral-bg);--ui-status-neutral-text:var(--color-neutral);--ui-status-info-bg:var(--color-info-bg);--ui-status-info-text:var(--color-info);--ui-question-unanswered-bg:#EDF0F2;--ui-question-unanswered-border:#D5DEE3;--ui-question-unanswered-text:#55636F;--ui-question-answered-bg:#E4F0E8;--ui-question-answered-text:#2E5C43;--ui-content-max-width:1180px;--ui-page-padding:clamp(16px,4vw,48px);--ui-card-radius:var(--ui-radius-card);--ui-card-padding:var(--ui-space-5);--ui-component-gap:var(--ui-space-4);--ui-sidebar-width:280px;--ui-font-size-body:14px;--ui-font-size-small:12px;--ui-font-size-heading:28px;--ui-line-height-body:1.5;--ui-fs-display-lg:36px;--ui-lh-display-lg:44px;--ui-fs-headline-lg:28px;--ui-lh-headline-lg:36px;--ui-fs-headline-md:20px;--ui-lh-headline-md:28px;--ui-fs-body-lg:16px;--ui-lh-body-lg:24px;--ui-fs-label-md:14px;--ui-fs-label-sm:12px;--ui-ls-label-sm:0.05em;--ui-fs-caption:12px;--ui-breakpoint-tablet:900px;--ui-breakpoint-mobile:600px}