._srOnly_fxhrv_1{clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}._study_fxhrv_11{padding-bottom:clamp(2.8rem,5.6vw,4.9rem)}._studyControls_fxhrv_15{min-width:0}._overview_fxhrv_19{border-top:1px solid var(--line);padding:1.1rem 0 0}._progressHeading_fxhrv_24{justify-content:space-between;align-items:end;gap:1.4rem;display:flex}._progressHeading_fxhrv_24>div{gap:.28rem;display:grid}._progressHeading_fxhrv_24 span,._progressHeading_fxhrv_24 p,._deckHeader_fxhrv_38,._cardFront_fxhrv_39>span,._cardFront_fxhrv_39>p,._cardBack_fxhrv_41 header span,._example_fxhrv_42>span,._filters_fxhrv_43 legend{color:var(--muted);font-size:max(.7rem,12px)}._progressHeading_fxhrv_24 span,._cardFront_fxhrv_39>span,._cardBack_fxhrv_41 header span,._example_fxhrv_42>span,._filters_fxhrv_43 legend,._conceptSearch_fxhrv_53>span,._sourceTrail_fxhrv_54>span{letter-spacing:.11em;text-transform:uppercase;font-weight:590}._progressHeading_fxhrv_24 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dd{color:var(--red)}._filterDisclosure_fxhrv_133{border-bottom:1px solid var(--line)}._filters_fxhrv_43{grid-template-columns:minmax(0,1.5fr) minmax(15rem,1fr);gap:1rem;padding:.7rem 0 1.1rem;display:none}._filterToggle_fxhrv_142{color:inherit;cursor:pointer;background:0 0;border:0;justify-content:space-between;align-items:center;width:100%;min-height:3.25rem;padding:.25rem 0;display:flex}._filterToggle_fxhrv_142:after{color:var(--violet);content:"+";margin-left:.7rem;font-size:1.1rem}._filterToggle_fxhrv_142[aria-expanded=true]:after{content:"−"}._filterToggle_fxhrv_142 span{color:var(--muted);letter-spacing:.08em;text-transform:uppercase;font-size:max(.7rem,12px);font-weight:590}._filterToggle_fxhrv_142 strong{color:var(--muted);text-align:right;text-overflow:ellipsis;white-space:nowrap;flex:1;margin-left:.9rem;font-size:max(.7rem,12px);font-weight:450;overflow:hidden}._filters_fxhrv_43._filtersOpen_fxhrv_159{display:grid}._filters_fxhrv_43 fieldset{border:0;min-width:0;margin:0;padding:0}._filters_fxhrv_43 legend{margin-bottom:.55rem;padding:0}._conceptSearch_fxhrv_53{grid-column:1/-1;gap:.45rem;display:grid}._conceptSearch_fxhrv_53>span,._sourceTrail_fxhrv_54>span{color:var(--muted);font-size:max(.7rem,12px)}._conceptSearch_fxhrv_53 input{appearance:none;border:1px solid var(--line-strong);color:var(--ink);font:inherit;background:#ffffff61;border-radius:0;width:100%;min-height:2.75rem;padding:.65rem .8rem}._conceptSearch_fxhrv_53 input::placeholder{color:var(--faint)}._conceptSearch_fxhrv_53 input:disabled,._filterToggle_fxhrv_142:disabled{cursor:wait;opacity:.65}._filterScroller_fxhrv_207{flex-wrap:wrap;gap:.42rem;display:flex}._filterScroller_fxhrv_207 button{border:1px solid var(--line-strong);color:var(--muted);cursor:pointer;white-space:nowrap;background:0 0;border-radius:999px;align-items:center;gap:.45rem;min-height:2.75rem;padding:.5rem .76rem;font-size:max(.7rem,12px);display:inline-flex}._filterScroller_fxhrv_207 button span{color:var(--muted);font-family:var(--mono)}._filterScroller_fxhrv_207 button:hover,._filterScroller_fxhrv_207 button:focus-visible{border-color:var(--violet);color:var(--ink)}._filterScroller_fxhrv_207 button:disabled{cursor:wait;opacity:.58}._filterScroller_fxhrv_207 button._activeFilter_fxhrv_244{background:var(--violet-wash);color:var(--violet-deep);border-color:#51465f6e}._deck_fxhrv_38{max-width:52rem;margin:clamp(1.15rem,2.1vw,1.8rem) auto 0}._deckHeader_fxhrv_38{justify-content:space-between;align-items:center;min-height:2.75rem;display:flex}._deckHeader_fxhrv_38>div{align-items:center;gap:.75rem;display:flex}._deckHeader_fxhrv_38 p{margin:0}._deckHeader_fxhrv_38 button{color:var(--violet-deep);cursor:pointer;font-size:inherit;background:0 0;border:0;align-items:center;gap:.3rem;min-height:2.75rem;padding:0 .35rem;display:inline-flex}._deckHeader_fxhrv_38 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var(--card-accent);background:#fffdf88f;min-width:0;scroll-margin-top:.75rem;animation:.18s ease-out _card-enter_fxhrv_1;position:relative}._card_fxhrv_39[data-subject=linear-algebra]{--card-accent:#58636d}._card_fxhrv_39[data-subject=machine-learning-basics]{--card-accent:var(--violet)}._card_fxhrv_39[data-subject=model-foundations]{--card-accent:#695a78}._card_fxhrv_39[data-subject=inference-runtime]{--card-accent:#4c6279}._card_fxhrv_39[data-subject=llm-serving]{--card-accent:#7a513e}._card_fxhrv_39[data-subject=chat-integration]{--card-accent:#486750}._card_fxhrv_39[data-subject=harness-engineering]{--card-accent:#85643c}._card_fxhrv_39[data-revealed=true] ._cardBack_fxhrv_41{animation:.18s ease-out _reveal-card_fxhrv_1}._cardFront_fxhrv_39{pointer-events:none;text-align:center;background:0 0;border:0;flex-direction:column;justify-content:center;align-items:center;width:100%;min-height:clamp(20rem,44vh,25rem);padding:clamp(2rem,6vw,4.5rem);display:flex}._cardFront_fxhrv_39 h3,._cardBack_fxhrv_41 h3,._emptyState_fxhrv_426 h3{font-family:var(--serif);letter-spacing:-.045em;font-weight:400}._cardFront_fxhrv_39 h3,._cardBack_fxhrv_41 h3{overflow-wrap:anywhere;max-width:100%}._cardFront_fxhrv_39 h3{text-wrap:balance;max-width:42rem;margin:1.05rem 0 0;font-size:clamp(2.35rem,5vw,4rem);line-height:1}._cardFront_fxhrv_39>p{margin:1rem 0 0}._answerToggle_fxhrv_450{cursor:pointer;font:inherit;z-index:3;background:0 0;border:0;position:absolute}._answerToggle_fxhrv_450[data-revealed=false]{color:var(--ink);justify-content:center;align-items:flex-end;padding:clamp(2.2rem,6vw,4rem);display:flex;inset:0}._answerToggle_fxhrv_450[data-revealed=false]>span{border-bottom:1px solid var(--line-strong);min-height:2.75rem;padding:.75rem 0;font-size:max(.78rem,13px);font-weight:520}._answerToggle_fxhrv_450[data-revealed=false] 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h3{font-size:clamp(1.8rem,8vw,2.3rem)}._answerToggle_fxhrv_450[data-revealed=true]{top:1.15rem;right:1.15rem}._ratingActions_fxhrv_510{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-top:1px solid var(--line-strong);padding:.75rem 1.15rem calc(.75rem + env(safe-area-inset-bottom));z-index:2;background:#fbfaf7eb;margin-inline:-1.15rem;position:sticky;bottom:0;box-shadow:0 -.7rem 1.6rem #3b2f460f}._cardNavigation_fxhrv_509{grid-template-columns:1fr 1fr}._cardNavigation_fxhrv_509>span{display:none}._cardNavigation_fxhrv_509 button:last-child{grid-area:1/2}._clearSection_fxhrv_515>div{flex-wrap:wrap}._clearSection_fxhrv_515 p{flex-basis:100%}}@media (width<=940px) and (height<=500px){._cardFront_fxhrv_39{min-height:13rem}}@media (prefers-reduced-motion:reduce){._progressTrack_fxhrv_74 i,._card_fxhrv_39,._markReceipt_fxhrv_320,._card_fxhrv_39[data-revealed=true] ._cardBack_fxhrv_41{transition:none;animation:none}}@keyframes 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