.resource-directory[data-v-953e6b22]{width:100%}.resource-directory h2[data-v-953e6b22]{margin:0 0 22px;color:var(--text-heading);font-size:clamp(24px,3vw,32px);font-weight:850;letter-spacing:-.025em;line-height:1.15}.resource-directory__grid[data-v-953e6b22]{display:grid;grid-template-columns:1fr;gap:16px}.resource-directory__card[data-v-953e6b22]{display:flex;min-height:214px;min-width:0;flex-direction:column;align-items:center;border:1px solid var(--border-card);border-radius:var(--radius-card);background:var(--bg-card);box-shadow:0 3px 0 var(--border-strong),var(--shadow-card);color:var(--text-primary);padding:20px;text-align:center;text-decoration:none;transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease}.resource-directory__card[data-v-953e6b22]:hover,.resource-directory__card[data-v-953e6b22]:focus-visible{border-color:var(--border-strong);box-shadow:0 4px 0 var(--border-strong),var(--shadow-panel);transform:translateY(-2px)}.resource-directory__card--disabled[data-v-953e6b22]{cursor:default;opacity:.58;box-shadow:0 2px 0 var(--border-strong)}.resource-directory__card--disabled[data-v-953e6b22]:hover{border-color:var(--border-card);box-shadow:0 2px 0 var(--border-strong);transform:none}.resource-directory__card[data-v-953e6b22]:focus-visible{outline:none;box-shadow:var(--focus-ring)}.resource-directory__icon[data-v-953e6b22]{display:grid;width:72px;height:72px;place-items:center}.resource-directory__icon img[data-v-953e6b22]{display:block;width:100%;height:100%;-o-object-fit:contain;object-fit:contain}.resource-directory__card strong[data-v-953e6b22]{display:block;margin-top:12px;font-size:18px;font-weight:820;letter-spacing:-.015em;line-height:1.25}.resource-directory__card p[data-v-953e6b22]{margin:9px 0 0;color:var(--text-secondary);font-size:13px;font-weight:520;line-height:1.55}.resource-directory__card--compact[data-v-953e6b22]{min-height:122px;padding:14px 10px}.resource-directory__card--compact .resource-directory__icon[data-v-953e6b22]{width:48px;height:48px}.resource-directory__metric[data-v-953e6b22]{margin-top:5px;color:var(--brand-hover);font-size:13px;font-weight:850}.resource-directory__metric small[data-v-953e6b22]{color:var(--text-secondary);font-size:11px;font-weight:600}.resource-directory__card--primary .resource-directory__metric[data-v-953e6b22]{margin-left:2px}.resource-directory__action[data-v-953e6b22]{display:inline-flex;flex:0 0 auto;align-items:center;gap:8px;margin-left:auto;color:var(--resource-accent-strong, var(--brand-hover));font-size:13px;font-weight:800}.resource-directory__action span[data-v-953e6b22]{font-size:20px;line-height:1}@media (max-width: 639px){.resource-directory__card[data-v-953e6b22]{min-height:0}}@media (min-width: 640px){.resource-directory__grid[data-v-953e6b22]{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (min-width: 1024px){.resource-directory__grid[data-v-953e6b22]{grid-template-columns:repeat(4,minmax(0,1fr))}}.resource-directory__grid--compact[data-v-953e6b22]{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.resource-directory__grid--compact .resource-directory__card--primary[data-v-953e6b22]{grid-column:1 / -1;min-height:100px;flex-direction:row;justify-content:flex-start;gap:14px;border-color:color-mix(in srgb,var(--resource-accent, #58a66b) 30%,var(--border-card));background:color-mix(in srgb,var(--resource-accent-soft, var(--brand-light)) 54%,var(--bg-card));padding:16px 20px;text-align:left}.resource-directory__grid--compact .resource-directory__card--primary .resource-directory__icon[data-v-953e6b22]{width:56px;height:56px;flex:0 0 56px}.resource-directory__grid--compact .resource-directory__card--primary strong[data-v-953e6b22]{margin-top:0;font-size:19px}@media (max-width: 639px){.resource-directory__grid--compact[data-v-953e6b22]{gap:9px}.resource-directory__grid--compact .resource-directory__card--compact[data-v-953e6b22]{min-height:118px;padding:12px 8px}.resource-directory__grid--compact .resource-directory__card--compact .resource-directory__icon[data-v-953e6b22]{width:46px;height:46px}.resource-directory__grid--compact .resource-directory__card--compact strong[data-v-953e6b22]{font-size:14px}.resource-directory__grid--compact .resource-directory__card--primary[data-v-953e6b22]{min-height:88px;padding:12px 14px}.resource-directory__grid--compact .resource-directory__card--primary .resource-directory__icon[data-v-953e6b22]{width:52px;height:52px;flex-basis:52px}.resource-directory__grid--compact .resource-directory__card--primary strong[data-v-953e6b22]{font-size:17px}.resource-directory__action[data-v-953e6b22]{gap:0;font-size:0}}@media (prefers-reduced-motion: reduce){.resource-directory__card[data-v-953e6b22]{transition:none}}.study-level-selector[data-v-858c41d8]{display:grid;gap:14px}.study-level-selector__compact[data-v-858c41d8]{width:min(100%,360px)}.study-level-selector--inline[data-v-858c41d8]{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}.study-level-selector__option[data-v-858c41d8]{min-height:100px;justify-content:stretch;padding:18px 22px;text-align:left;white-space:normal;--game-button-background: var(--bg-card);--game-button-background-hover: var(--bg-card-inner);--game-button-border: var(--border-card);--game-button-text: var(--text-heading);--game-button-edge: var(--border-strong)}.study-level-selector__option--selected[data-v-858c41d8]{--game-button-background: var(--resource-accent-soft, var(--brand-light));--game-button-background-hover: var(--resource-accent-soft, var(--brand-light));--game-button-border: var(--resource-accent, var(--brand));--game-button-edge: var(--resource-accent, var(--brand))}.study-level-selector__option[data-v-858c41d8] .edu-button__label{width:100%;justify-content:space-between;gap:24px;overflow:visible}.study-level-selector__copy[data-v-858c41d8]{display:grid;min-width:0;gap:4px}.study-level-selector__copy small[data-v-858c41d8]{color:var(--resource-accent-strong, var(--brand-hover));font-size:12px;font-weight:850;letter-spacing:.09em;line-height:1.2}.study-level-selector__copy strong[data-v-858c41d8]{font-size:19px;font-weight:850;letter-spacing:-.02em;line-height:1.2}.study-level-selector__action[data-v-858c41d8]{display:inline-flex;flex:0 0 auto;align-items:center;gap:8px;color:var(--text-secondary);font-size:13px;font-weight:750}.study-level-selector__action span[data-v-858c41d8]{color:var(--resource-accent, var(--brand));font-size:20px;line-height:1}@media (max-width: 640px){.study-level-selector--inline[data-v-858c41d8]{grid-template-columns:1fr}.study-level-selector__option[data-v-858c41d8]{min-height:92px;padding:16px 18px}.study-level-selector__action[data-v-858c41d8]{font-size:0;gap:0}}.level-picker[data-v-21462d40]{height:100%;min-height:0;overflow-x:hidden;overflow-y:auto;border:1px solid var(--border-card);border-radius:var(--radius-shell);background:var(--bg-card);box-shadow:var(--shadow-card)}.level-picker__inner[data-v-21462d40]{width:min(100%,1180px);margin:0 auto}.level-picker__course[data-v-21462d40]{background:var(--resource-accent-soft, var(--brand-light));padding:clamp(40px,6vw,72px) clamp(20px,5vw,64px)}.level-picker__course-grid[data-v-21462d40]{display:grid;grid-template-columns:minmax(0,1fr) minmax(360px,.82fr);align-items:center;gap:clamp(40px,6vw,88px)}h1[data-v-21462d40]{margin:0;color:var(--text-heading);font-size:clamp(34px,5vw,56px);font-weight:850;letter-spacing:-.045em;line-height:1.02}.level-picker__hero p[data-v-21462d40]{max-width:620px;margin:20px 0 0;color:var(--text-secondary);font-size:16px;font-weight:560;line-height:1.55}.level-picker__selector h2[data-v-21462d40]{margin:0 0 8px;color:var(--text-heading);font-size:22px}.level-picker__selector>p[data-v-21462d40],.level-picker__directory-description[data-v-21462d40]{margin:0 0 18px;color:var(--text-secondary);line-height:1.6}.level-picker__resources[data-v-21462d40]{padding:clamp(42px,6vw,72px) clamp(20px,5vw,64px) clamp(52px,7vw,88px)}.level-picker__editorial[data-v-21462d40]{display:grid;gap:42px;width:min(100%,1080px);margin:0 auto;padding:0 clamp(20px,5vw,64px) clamp(52px,7vw,88px)}.level-picker__prose h2[data-v-21462d40]{margin:0 0 16px;color:var(--text-heading);font-size:28px}.level-picker__prose p[data-v-21462d40]{max-width:760px;color:var(--text-secondary);line-height:1.75}@media (max-width: 820px){.level-picker__course-grid[data-v-21462d40]{grid-template-columns:1fr;gap:32px}}.syllabus-map[data-v-bbc74752]{display:grid;gap:1.25rem;overflow:visible}.related-pages[data-v-bbc74752]{width:100%;margin:38px auto 0;border-top:1px solid var(--border-soft);padding-top:22px}.related-pages h2[data-v-bbc74752]{margin:0;color:var(--text-secondary);font-size:12px;font-weight:800;letter-spacing:.04em;line-height:1.3;text-transform:uppercase}.related-pages ul[data-v-bbc74752]{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:12px 0 0;padding:0;list-style:none}.related-pages a[data-v-bbc74752]{display:flex;min-height:48px;min-width:0;align-items:center;justify-content:space-between;gap:12px;border:1px solid var(--border-soft);border-radius:var(--radius-control-inner);background:var(--bg-card-inner);color:var(--text-secondary);padding:10px 13px;font-size:12.5px;font-weight:720;line-height:1.35;text-decoration:none;transition:border-color .16s ease,background-color .16s ease,color .16s ease,transform .16s ease}.related-pages a span[data-v-bbc74752]:first-child{min-width:0;overflow-wrap:anywhere}.related-pages a span[data-v-bbc74752]:last-child{flex:0 0 auto;color:var(--text-subtle)}.related-pages a[data-v-bbc74752]:hover,.related-pages a[data-v-bbc74752]:focus-visible{border-color:var(--brand-medium);background:var(--brand-light);color:var(--brand-hover);transform:translateY(-1px)}.related-pages a[data-v-bbc74752]:focus-visible{outline:none;box-shadow:var(--focus-ring)}.level-landing-support[data-v-bbc74752]{width:100%;max-width:1100px;margin:34px auto 0;border-top:1px solid #e6e9e4;padding-top:28px}.level-landing-faq[data-v-bbc74752]{margin:28px auto 0}.study-seo-entry--faq-only .level-landing-faq[data-v-bbc74752]{margin-top:12px}.level-landing-faq[data-v-bbc74752] .edu-faq-accordion__list{margin-top:18px}@media (max-width: 639px){.related-pages ul[data-v-bbc74752]{grid-template-columns:1fr}}@media (min-width: 640px){.level-landing-faq[data-v-bbc74752] .edu-faq-accordion__list{margin-top:22px}}.public-page-editorial[data-v-18b4a28b]{display:grid;gap:32px;width:min(100%,1100px);margin:24px auto 0;padding:28px 0 80px;border-top:1px solid var(--border-soft)}.public-page-editorial__prose h2[data-v-18b4a28b]{margin:0 0 14px;color:var(--text-heading);font-size:26px}.public-page-editorial__prose p[data-v-18b4a28b]{max-width:780px;margin:0 0 12px;color:var(--text-secondary);font-size:15px;line-height:1.75}.study-breadcrumb[data-v-33049462]{position:relative;display:flex;min-width:0;flex-wrap:nowrap;align-items:center;margin-bottom:12px;color:var(--text-muted);font-size:12px;font-weight:800;line-height:1.5;white-space:nowrap}.study-breadcrumb__item[data-v-33049462]{display:inline-flex;min-width:0;flex:0 1 auto;overflow:hidden;align-items:center;gap:6px}.study-breadcrumb__disclosure[data-v-33049462]{display:none;align-items:center;flex:none;gap:6px}.study-breadcrumb__item[data-v-33049462]:last-child{flex:1 1 auto;overflow:hidden}.study-breadcrumb__separator[data-v-33049462]{flex:none;margin-left:6px;color:#7a837c}.study-breadcrumb__label[data-v-33049462],.study-breadcrumb__link[data-v-33049462],.study-breadcrumb__current[data-v-33049462]{display:block;min-width:0;max-width:min(24vw,260px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.study-breadcrumb__link[data-v-33049462]{transition:color var(--motion-fast) var(--motion-ease)}.study-breadcrumb__link[data-v-33049462]:hover{color:#4f7437}.study-breadcrumb__current[data-v-33049462]{max-width:100%;color:#4d5551}.study-breadcrumb__more[data-v-33049462],.study-breadcrumb__popover[data-v-33049462]{display:none}@media (max-width: 767px){.study-breadcrumb__item--mobile-collapsible[data-v-33049462]{display:none}.study-breadcrumb__more[data-v-33049462]{display:inline-flex;width:44px;height:44px;align-items:center;justify-content:center;flex:none;border-radius:var(--radius-pill);color:var(--text-muted);transition:background-color var(--motion-fast) var(--motion-ease),color var(--motion-fast) var(--motion-ease)}.study-breadcrumb__disclosure[data-v-33049462]{display:inline-flex}.study-breadcrumb__more[data-v-33049462]:hover,.study-breadcrumb__more[data-v-33049462]:focus-visible{background:var(--bg-muted);color:var(--brand-hover)}.study-breadcrumb__popover[data-v-33049462]{position:absolute;z-index:20;top:calc(100% + 6px);left:6px;display:grid;width:min(320px,calc(100vw - 32px));gap:2px;padding:8px;border:1px solid var(--border-card);border-radius:var(--radius-control-inner);background:var(--surface-floating);box-shadow:var(--shadow-panel);white-space:normal}.study-breadcrumb__popover-item[data-v-33049462]{min-width:0}.study-breadcrumb__popover-link[data-v-33049462],.study-breadcrumb__popover-item>span[data-v-33049462]{display:flex;min-height:44px;align-items:center;padding:8px 10px;border-radius:var(--radius-control-inner);overflow-wrap:anywhere}.study-breadcrumb__popover-link[data-v-33049462]:hover,.study-breadcrumb__popover-link[data-v-33049462]:focus-visible{background:var(--bg-muted);color:var(--brand-hover)}.study-breadcrumb__link[data-v-33049462]{max-width:34vw}}.study-seo-heading[data-v-9694ada6]{min-height:88px}@media (min-width: 640px){.study-seo-heading[data-v-9694ada6]{min-height:98px}}.mastery-workspace{display:flex;flex-direction:column;gap:18px}.mastery-workspace-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:18px;align-items:start}.mastery-main-column{display:flex;min-width:0;flex-direction:column;gap:16px}.mastery-plan-panel{display:flex;min-width:0;align-items:center;justify-content:space-between;gap:16px;border-bottom:1px solid #e5e9e2;padding:2px 2px 16px}.mastery-plan-main{display:flex;min-width:0;flex-direction:column;align-items:flex-start}.mastery-plan-title{max-width:720px;margin:5px 0 0;color:#151719;font-size:28px;font-weight:950;letter-spacing:0;line-height:1.1}.mastery-plan-subline{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px;color:#6c746f;font-size:12px;font-weight:800;line-height:1.25}.mastery-plan-subline span+span:before{margin-right:6px;color:#abb3ac;content:"·"}.mastery-plan-stats{display:grid;gap:0;margin-top:6px}.mastery-plan-stats div{display:flex;align-items:baseline;justify-content:space-between;gap:12px;border-top:1px solid #edf1ea;padding:9px 0}.mastery-plan-stats span{color:#7d877f;font-size:11px;font-weight:900;letter-spacing:0;text-transform:uppercase}.mastery-plan-stats strong{color:#151719;font-size:13px;font-weight:950}.mastery-section-header{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;padding:4px 2px 2px}.mastery-section-header h2{margin:0;color:#151719;font-size:16px;font-weight:950;letter-spacing:0}.mastery-section-header p{margin:4px 0 0;color:#6f7773;font-size:13px;font-weight:750;line-height:1.45}.mastery-section-header>span{display:inline-flex;min-width:0;height:24px;align-items:center;justify-content:center;border-radius:var(--radius-pill);background:transparent;color:#7d877f;font-size:11px;font-weight:850}.mastery-path-section{display:flex;flex-direction:column;gap:10px;border:1px solid #e3e8e0;border-radius:var(--radius-control);background:#ffffffc7;padding:12px}.mastery-path-section--roadmap,.mastery-path-section--checklist{gap:12px;border:0;border-radius:0;background:transparent;padding:0}.mastery-roadmap-list,.mastery-objective-list{display:flex;flex-direction:column;overflow:hidden;border:1px solid #edf0ea;border-radius:var(--radius-control-inner);background:#fff}.mastery-table-header{display:grid;min-height:34px;align-items:center;-moz-column-gap:12px;column-gap:12px;border-bottom:1px solid #edf0ea;background:#fbfcfa;padding:0 14px;color:#8a938d;font-size:11px;font-weight:850}.mastery-roadmap-table-header{grid-template-columns:minmax(220px,1fr) 100px minmax(150px,240px) 54px}.mastery-objective-table-header{grid-template-columns:52px minmax(220px,1fr) minmax(140px,160px)}.mastery-roadmap-row,.mastery-objective-row{display:grid;min-width:0;cursor:pointer;align-items:center;-moz-column-gap:14px;column-gap:14px;row-gap:8px;border-bottom:1px solid #edf0ea;background:#fff;padding:12px 14px;transition:background .15s ease,border-color .15s ease,box-shadow .15s ease}.mastery-roadmap-row:last-child,.mastery-objective-row:last-child{border-bottom:0}.mastery-roadmap-row{grid-template-columns:minmax(220px,1fr) 100px minmax(150px,240px) 54px}.mastery-objective-row{grid-template-columns:52px minmax(220px,1fr) minmax(140px,160px)}.mastery-roadmap-row:hover,.mastery-objective-row:hover,.mastery-roadmap-row--active,.mastery-objective-row--active{background:#f8fbf5;box-shadow:inset 3px 0 #63c85f}.mastery-roadmap-row__main,.mastery-objective-main{min-width:0}.mastery-roadmap-row__main h3,.mastery-objective-main h3{margin:0;color:#151719;font-size:14px;font-weight:900;line-height:1.28}.mastery-roadmap-row__main p,.mastery-objective-main p{margin:5px 0 0;color:#65706a;font-size:12.5px;font-weight:750;line-height:1.35}.mastery-row-meta{display:flex;flex-wrap:wrap;gap:7px;margin-top:10px}.mastery-row-meta span{display:inline-flex;align-items:center;border:1px solid #edf1ea;border-radius:var(--radius-pill);background:#fbfcfa;padding:3px 8px;color:#6f7773;font-size:11px;font-weight:800;line-height:1.3}.mastery-row-meta span+span:before{content:none}.mastery-roadmap-progress{display:flex;align-items:center;gap:8px;min-width:0}.mastery-roadmap-progress>span:last-child{color:#7d877f;font-size:11px;font-weight:850;line-height:1}.mastery-row-steps{color:#7d877f;font-size:12px;font-weight:850}.mastery-row-actions{display:flex;flex-shrink:0;align-items:center;justify-content:flex-end;gap:6px}.mastery-path-section--checklist .mastery-inline-action{min-width:64px;padding:7px 10px;text-align:center}.mastery-icon-action{display:grid;width:34px;height:34px;place-items:center;border:1px solid transparent;border-radius:var(--radius-control-inner);background:transparent;color:#6e7871;transition:background .15s ease,border-color .15s ease,color .15s ease}.mastery-icon-action svg{width:18px;height:18px}.mastery-icon-action:hover{border-color:#e0e5dd;background:#f8faf6;color:#24342b}.mastery-icon-action--primary{color:#3f8442}.mastery-icon-action--primary:hover{border-color:#d8e8d2;background:#f0f8ec;color:#27662b}.mastery-inline-action{border:1px solid transparent;border-radius:var(--radius-control-inner);background:transparent;padding:6px 7px;color:#59635d;font-size:11px;font-weight:950;transition:background .15s ease,border-color .15s ease,color .15s ease}.mastery-inline-action--quiet{color:#737c76}.mastery-inline-action--quiet:hover{border-color:#e0e5dd;background:#f8faf6;color:#3f4742}.mastery-inline-action--primary{color:#36783a}.mastery-inline-action--primary:hover{border-color:#d8e8d2;background:#f0f8ec}.mastery-objective-progress-ring{position:relative;display:grid;width:40px;height:40px;place-items:center;color:#8a938d}.mastery-objective-progress-ring svg{position:absolute;inset:0;width:40px;height:40px;transform:rotate(-90deg)}.mastery-objective-progress-ring__track{stroke:#e7ebe3;stroke-width:3.5}.mastery-objective-progress-ring__fill{stroke:#98b86c;stroke-width:3.5;stroke-linecap:round;transition:stroke-dashoffset .2s ease}.mastery-objective-progress-ring span{position:relative;z-index:1;color:#3f4742;font-size:10px;font-weight:900;font-variant-numeric:tabular-nums;line-height:1}.mastery-objective-progress-ring.is-learning .mastery-objective-progress-ring__fill,.mastery-objective-progress-ring.is-practicing .mastery-objective-progress-ring__fill{stroke:#58a66b}.mastery-objective-progress-ring.is-weak .mastery-objective-progress-ring__fill{stroke:#d29a3a}.mastery-objective-progress-ring.is-mastered .mastery-objective-progress-ring__fill{stroke:#58cc02}.mastery-objective-progress-ring.is-mastered span{color:#2f7651}.mastery-objective-row--mastered .mastery-objective-main h3{color:#4d6651}.mastery-objective-status,.mastery-objective-flag{display:block;margin-top:4px;color:#7a827a;font-size:11px;font-weight:750;line-height:1.2}.mastery-objective-row--weak .mastery-objective-status{color:#b15a4f;font-weight:850}.mastery-objective-progress{display:flex;max-width:none;align-items:center;gap:9px;min-width:0}.mastery-objective-progress__track{display:block;width:100%;height:6px;overflow:hidden;border-radius:var(--radius-pill);background:#edf1ea}.mastery-objective-progress__fill{display:block;height:100%;border-radius:inherit;background:#63c85f}.mastery-objective-progress>span:last-child{color:#7d877f;font-size:11px;font-weight:850;line-height:1}.mastery-mistake-section{display:flex;flex-direction:column;gap:16px}.mastery-mistake-section__header{padding:0 2px}.mastery-mistake-card-list{display:flex;flex-direction:column;gap:16px}.mastery-review-empty--wide{border:1px solid #edf0ea;border-radius:var(--radius-card);background:#fff;padding:28px}.mastery-review-empty{border:1px dashed #dce3d9;border-radius:var(--radius-card);background:#ffffffb8;padding:18px 20px}.mastery-review-empty strong{display:block;color:#151719;font-size:17px;font-weight:950}.mastery-review-empty span{display:block;margin-top:5px;color:#6f7773;font-size:13px;font-weight:750;line-height:1.45}.question-mobile-knowledge{position:sticky;top:0;z-index:18;margin:-16px auto 14px;width:100%;max-width:1180px;padding-top:8px;background:linear-gradient(180deg,#f8f9f7,#f8f9f7f0 72%,#f8f9f700)}.question-mobile-knowledge__trigger{display:flex;min-height:48px;width:100%;align-items:center;justify-content:space-between;gap:12px;border:1px solid #e1e5dc;border-radius:var(--radius-control);background:#fffffff5;padding:7px 14px;text-align:left;box-shadow:0 1px #ffffffdb inset,0 12px 28px #15171914}.question-mobile-knowledge__trigger:active{background:#f6f8f3;transform:translateY(1px)}.question-mobile-knowledge__scrim{position:fixed;z-index:120;inset:0;display:flex;align-items:flex-end;justify-content:center;background:#15181647;backdrop-filter:blur(4px)}.question-mobile-knowledge__sheet{position:relative;display:flex;width:100%;height:min(74dvh,680px);min-height:min(480px,calc(100dvh - env(safe-area-inset-top) - 12px));overflow:hidden;flex-direction:column;border:1px solid var(--border-card);border-bottom:0;border-radius:var(--radius-shell) var(--radius-shell) 0 0;background:#fbfbf8;box-shadow:0 -18px 52px #1517192e}.question-mobile-knowledge__sheet-header{min-height:84px;flex:0 0 auto;border-bottom:1px solid var(--border-soft);padding:17px 64px 14px 20px}.question-mobile-knowledge__sheet-header p,.question-mobile-knowledge__sheet-header h2,.question-mobile-knowledge__sheet-header span{margin:0}.question-mobile-knowledge__sheet-header p{color:#7d877f;font-size:10px;font-weight:850;letter-spacing:.05em;text-transform:uppercase}.question-mobile-knowledge__sheet-header h2{margin-top:2px;color:#151719;font-size:19px;font-weight:900;letter-spacing:-.02em;line-height:1.2}.question-mobile-knowledge__sheet-header span{display:block;overflow:hidden;margin-top:3px;color:#6f7773;font-size:12px;font-weight:650;text-overflow:ellipsis;white-space:nowrap}.question-mobile-knowledge__close{position:absolute;z-index:2;top:14px;right:14px}.question-mobile-knowledge__tree{min-height:0;flex:1;overflow-y:auto;overscroll-behavior-y:auto;padding:10px 10px calc(18px + env(safe-area-inset-bottom))}.question-mobile-knowledge__tree [data-tree-active]{min-height:44px}.question-mobile-knowledge__tree [data-tree-active]>button{width:36px;height:36px;flex-basis:36px}.mobile-knowledge-sheet-enter-active,.mobile-knowledge-sheet-leave-active{transition:opacity .22s ease}.mobile-knowledge-sheet-enter-active .question-mobile-knowledge__sheet,.mobile-knowledge-sheet-leave-active .question-mobile-knowledge__sheet{transition:transform .28s cubic-bezier(.22,.74,.28,1)}.mobile-knowledge-sheet-enter-from,.mobile-knowledge-sheet-leave-to{opacity:0}.mobile-knowledge-sheet-enter-from .question-mobile-knowledge__sheet,.mobile-knowledge-sheet-leave-to .question-mobile-knowledge__sheet{transform:translateY(100%)}@media (prefers-reduced-motion: reduce){.mobile-knowledge-sheet-enter-active .question-mobile-knowledge__sheet,.mobile-knowledge-sheet-leave-active .question-mobile-knowledge__sheet{transition:opacity .16s ease;transform:none}}@media (prefers-reduced-transparency: reduce){.question-mobile-knowledge__scrim{backdrop-filter:none}}@media (max-width: 980px){.mastery-workspace-grid{grid-template-columns:1fr}.mastery-plan-panel{align-items:flex-start;flex-direction:column}.mastery-plan-stats{width:100%}.mastery-roadmap-row,.mastery-objective-row{grid-template-columns:auto minmax(0,1fr) minmax(140px,200px) auto}.mastery-roadmap-row,.mastery-roadmap-table-header{grid-template-columns:minmax(180px,1fr) 90px minmax(140px,200px) 54px}.mastery-objective-table-header{grid-template-columns:52px minmax(0,1fr) minmax(140px,160px)}.mastery-row-actions,.mastery-objective-main{grid-column:auto}.mastery-row-actions{justify-content:flex-start}}@media (max-width: 640px){.study-workspace-shell{border-radius:0;box-shadow:none!important;--tw-ring-shadow: 0 0 #0000;--tw-ring-offset-shadow: 0 0 #0000}.mastery-plan-panel{gap:14px;padding:2px 0 14px}.mastery-plan-title{font-size:24px}.mastery-plan-stats{grid-template-columns:repeat(3,minmax(0,1fr));gap:0;margin-top:12px}.mastery-plan-stats div{display:block;border-top:1px solid #edf1ea;padding:8px 6px 0}.mastery-plan-stats strong,.mastery-plan-stats span{display:block}.mastery-path-section{padding:14px}.mastery-roadmap-row,.mastery-objective-row{grid-template-columns:1fr}.mastery-table-header{display:none}.mastery-objective-progress-ring{width:36px;height:36px}.mastery-objective-progress-ring svg{width:36px;height:36px}.mastery-roadmap-progress,.mastery-objective-progress{max-width:260px}.mastery-row-actions,.mastery-objective-main{grid-column:auto}.mastery-row-actions{width:100%;justify-content:flex-start}.mastery-icon-action{width:38px;height:38px}}.study-content-scroll{height:100%;overflow-y:auto}@media (max-width: 1023px){.study-workspace-shell{height:auto;min-height:100%;overflow:visible}.study-content-scroll{height:auto;min-height:0;overflow:visible}}