.learning{padding-bottom:70px}.preview-banner{background:#e7efff;border:1px solid #c9dcff;border-radius:12px;justify-content:space-between;gap:20px;padding:15px 20px;font-size:13px;display:flex}.learning-nav{white-space:nowrap;border-bottom:1px solid #dce3ed;gap:28px;padding:24px 0;display:flex;overflow-x:auto}.learning-nav a:hover,.text-link{color:#06f}.learning-heading{max-width:850px;padding:48px 0 30px}.learning-heading h1{font-size:clamp(32px,4.5vw,50px)}.learning-stats{grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:24px;display:grid}.learning-stats>div{background:#fff;border:1px solid #dce3ed;border-radius:14px;padding:24px}.learning-stats strong{font-size:34px;display:block}.learning-stats span{color:#526176;font-size:14px}.study-next{background:#ecf3ff;border:1px solid #bed4ff;border-radius:18px;justify-content:space-between;align-items:center;gap:24px;margin:24px 0 44px;padding:32px;display:flex}.study-next h2{margin-top:10px}.lesson-list{gap:14px;margin:22px 0;display:grid}.lesson-row{background:#fff;border:1px solid #dce3ed;border-radius:14px;align-items:center;gap:22px;padding:24px;display:flex}.lesson-row:hover{border-color:#06f}.lesson-row>div{flex:1}.lesson-row p{margin:8px 0 0}.lesson-number{color:#06f;background:#edf3ff;border-radius:12px;padding:14px;font-weight:700}.lesson-row h3{font-size:19px}.learning-tools{margin-top:34px}.reader-layout{grid-template-columns:240px 1fr;gap:40px;margin-top:40px;display:grid}.reader-layout aside h2{margin:15px 0;font-size:20px}.reader-layout aside a{border-radius:8px;padding:16px 12px;font-size:14px;display:block}.reader-layout aside a[aria-current]{color:#06f;background:#e7efff;font-weight:700}.lesson-content{background:#fff;border:1px solid #dce3ed;border-radius:18px;padding:40px}.lesson-content h1{font-size:40px}.lesson-content section{margin:32px 0}.lesson-content section h2{font-size:23px}.lesson-content.large-text p{font-size:21px}.reader-meta{color:#526176;justify-content:space-between;align-items:center;gap:16px;font-size:13px;display:flex}.quiet{color:#03152e;background:#fff;border:1px solid #dce3ed;padding:10px 15px}.takeaway{background:#edf3ff;border-left:3px solid #06f;border-radius:8px;padding:22px}.reader-actions{flex-wrap:wrap;align-items:center;gap:20px;margin-top:26px;display:flex}.practice-card{max-width:800px;margin:0 auto}.practice-card h2{margin:24px 0}.practice-card fieldset{margin:20px 0}.practice-card legend{margin-bottom:14px;font-weight:700}.practice-card fieldset label{align-items:baseline;gap:12px;margin:12px 0;display:flex}.answer-option{border:1px solid #dce3ed;border-radius:10px;padding:18px}.answer-option:has(input:checked){background:#f0f5ff;border-color:#06f}.answer-option.correct{background:#effaf4;border-color:#178354}.feedback{background:#f4f7fb;border-radius:12px;margin:24px 0;padding:24px}.feedback p{font-size:15px}.practice-card progress{accent-color:#06f;width:100%;height:7px;margin:20px 0}button:disabled{opacity:.55;cursor:default}.flashcard-session{max-width:740px;margin:auto}.flashcard{color:#03152e;background:#fff;border:1px solid #c7d7ef;border-radius:22px;flex-direction:column;justify-content:center;align-items:center;gap:30px;width:100%;min-height:320px;margin:20px 0;padding:40px;display:flex;box-shadow:0 14px 35px #03152e08}.flashcard>span:nth-child(2){font-size:28px;line-height:1.5}.flashcard small{color:#526176;font-size:13px;font-weight:400}.rating-row{grid-template-columns:repeat(4,1fr);gap:12px;display:grid}.rating-row small{margin-top:5px;font-size:12px;font-weight:400;display:block}@media (max-width:750px){.preview-banner{flex-direction:column;gap:6px}.learning-nav{gap:20px}.learning-stats>div{padding:15px}.learning-stats strong{font-size:26px}.study-next{flex-direction:column;align-items:start;padding:24px}.lesson-row{gap:12px;padding:18px}.lesson-row>span:last-child{display:none}.reader-layout{grid-template-columns:1fr;gap:20px}.reader-layout aside{display:none}.lesson-content{padding:24px}.lesson-content h1{font-size:32px}.rating-row{grid-template-columns:repeat(2,1fr)}.flashcard{padding:24px}.flashcard>span:nth-child(2){font-size:23px}}.course-top{justify-content:space-between;align-items:center;gap:24px;padding:24px 0;display:flex}.state-switch{align-items:center;gap:14px;font-size:14px;display:flex}.state-switch select{background:#fff;border:1px solid #dce3ed;border-radius:8px;max-width:230px;padding:12px}.practice-card>.state-switch{margin:24px 0}@media (max-width:600px){.course-top{flex-direction:column;align-items:start}.state-switch{flex-wrap:wrap}}.exam-toolbar,.exam-controls{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:18px;margin:20px 0;display:flex}.exam-option{cursor:pointer;border:1px solid #dce3ed;border-radius:10px;align-items:center;gap:14px;margin:12px 0;padding:16px;display:flex}.exam-option input{accent-color:#06f;flex-shrink:0;width:18px;height:18px;margin:0}.exam-page legend{margin:12px 0 24px}.exam-page fieldset{min-width:0}.exam-question-nav{flex-wrap:wrap;gap:8px;margin:22px 0;display:flex}.exam-question-nav button{color:#03152e;background:#e2eafa;min-width:48px;padding:10px}.exam-question-nav button[aria-current]{outline:3px solid #06f}.exam-topics{grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:18px;margin:24px 0;display:grid}.exam-review,.exam-history{margin:24px 0}.exam-page progress{accent-color:#06f;width:100%}.exam-page button:disabled{opacity:.55;cursor:wait}.lab-grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,290px),1fr));gap:1.2rem;margin:2rem 0;display:grid}.study-panel{background:#fff;border:1px solid #dce3ed;border-radius:18px;padding:1.5rem;text-decoration:none;display:block;box-shadow:0 12px 35px #14386008}.study-panel h2{font-size:1.4rem}.lab-player{max-width:850px;margin:2rem auto}.lab-player progress{accent-color:#00c8ff;width:100%}.lab-player details,.lesson-utilities details,.learning details{border:1px solid #dce3ed;border-radius:10px;margin:1rem 0;padding:1rem}.learning summary{cursor:pointer;font-weight:700}.lab-document{white-space:pre-wrap;line-height:1.8}.lab-option{cursor:pointer;border:1px solid #dce3ed;border-radius:10px;align-items:flex-start;gap:.8rem;margin:.7rem 0;padding:1rem;display:flex}.lab-option input{width:auto;margin-top:.35rem}.learning textarea{color:#0d2842;background:#fff;border:1px solid #b9c8da;border-radius:8px;width:100%;margin:.7rem 0;padding:1rem;display:block}.lesson-utilities{margin:2rem 0}.learning fieldset{border:0;padding:0}.learning input[type=checkbox],.learning input[type=radio]{width:auto}.learning input[type=search]{width:100%;margin:1rem 0;display:block}.learning .reader-actions{flex-wrap:wrap}.learning a.study-panel:hover{border-color:#00c8ff;transform:translateY(-2px)}@media (prefers-reduced-motion:reduce){.learning a.study-panel:hover{transform:none}}.learning>h1{margin:24px 0;font-size:clamp(32px,4.2vw,52px);line-height:1.12}.learning>.eyebrow{margin-top:32px;display:block}.lab-player .lead{color:#273b52;font-size:20px;line-height:1.6}.lab-player input[type=text]{color:#102a43;background:#fff;border:1px solid #afc0d7;border-radius:10px;max-width:300px;margin:12px 0;padding:12px 16px;display:block}.lab-player button,.lesson-utilities button,.study-panel button{color:#fff;cursor:pointer;background:#0668f9;border-radius:9px;padding:12px 20px}.lab-player button:disabled,.lesson-utilities button:disabled,.study-panel button:disabled{opacity:.5;cursor:not-allowed}.lab-player button.quiet,.lesson-utilities button.quiet{color:#1359ae;background:#edf4ff}.lab-player .reader-meta{color:#52637a}.lab-player .reader-actions{gap:12px;margin-top:20px;display:flex}.study-panel p{color:#52637a;line-height:1.7}.study-panel h2,.study-panel h3{color:#0d2842}.learning details p{color:#324d68}.lab-option:has(input:checked){background:#edf5ff;border-color:#06f}.learning select{background:#fff;border:1px solid #c4d1e1;border-radius:8px;margin:8px;padding:10px}.learning :focus-visible{outline-offset:3px;outline:3px solid #1379ee}
