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p{font-size:12px;max-width:400px;margin:0 auto 20px}.empty-icon{font-size:36px;color:#aaa5e9}.loading{height:55vh;display:grid;place-content:center;text-align:center;color:var(--muted)}.loading-mark{font-size:45px;color:var(--primary);font-weight:650}.mobile-review-toggle{display:none}.session-finished{margin-bottom:20px;padding:17px;background:var(--green-bg);border-radius:10px;color:var(--green);font-size:12px}.table-wrap{overflow-x:auto}footer{padding:10px 40px 25px;color:#9aa4b6;font-size:9px;display:flex;gap:10px;flex-wrap:wrap}dialog{border:1px solid var(--line);border-radius:17px;padding:28px;width:480px;max-width:calc(100% - 30px);box-shadow:0 20px 100px #17233833;color:var(--ink)}dialog::backdrop{background:#17233870;backdrop-filter:blur(3px)}.modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;gap:15px}.modal-head h2{margin:4px 0 0}dialog label:not(.file-label){display:block;font-size:11px;font-weight:600;margin-bottom:14px}dialog select{width:100%;display:block;border:1px solid var(--line);border-radius:8px;padding:10px;color:#526078;background:#f9faff;margin-top:6px}.form-row{display:flex;gap:15px}.form-row label{flex:1;min-width:0}.hint{color:var(--muted);font-size:11px;line-height:1.8}.check-label{display:flex!important;align-items:center;gap:8px}.check-label input{accent-color:var(--primary)}dialog p{font-size:12px;color:#6d7c92}.file-label{cursor:pointer}.error-message{color:var(--red)!important}.shortcut-list{display:grid;grid-template-columns:1fr 70px;gap:12px;font-size:12px;padding:15px 0 25px}.shortcut-list kbd{border:1px solid var(--line);border-radius:4px;text-align:center;font-size:10px;padding:3px;background:#f8f9fc}.toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%) translateY(100px);background:var(--nav);color:white;padding:11px 20px;font-size:12px;border-radius:9px;z-index:50;opacity:0;transition:.2s;max-width:calc(100% - 30px)}.toast.visible{opacity:1;transform:translateX(-50%) translateY(0)}.scrim{display:none}.mini-progress{margin-top:13px}.question-tools{display:flex;gap:7px;align-items:center}.source-note{font-size:10px;color:var(--muted);margin-top:10px}.review-footer{margin-top:12px;font-size:10px;color:var(--muted)}
@media(min-width:1450px){.system-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.dashboard-columns{grid-template-columns:minmax(0,1fr) 310px}}
@media(max-width:1150px){.sidebar{width:216px;padding-left:16px;padding-right:16px}.workspace{margin-left:216px;width:calc(100% - 216px)}main{padding:28px}.topbar{padding:0 28px}.dashboard-columns{grid-template-columns:1fr 245px;gap:16px}.system-card{padding:15px}.practice-layout{grid-template-columns:1fr 220px;gap:16px}.question-card{padding:23px}.stat{padding:15px}.progress-summary{grid-template-columns:245px 1fr}.hero-art{width:130px}}
@media(max-width:960px){.dashboard-columns{grid-template-columns:1fr}.dashboard-right{display:grid;grid-template-columns:1fr 1fr;gap:16px}.dashboard-right .note-panel{grid-column:1/-1}.dashboard-right .panel{margin-bottom:0}.system-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.practice-layout{grid-template-columns:1fr}.session-side{display:grid;grid-template-columns:1fr 1fr;gap:15px}.session-side .panel{margin-bottom:0}.stats{gap:10px}.stat-value{font-size:24px}.stat-head{font-size:10px}.system-top{gap:8px}.system-icon{width:30px;height:30px;font-size:17px}.system-title{font-size:11px}.system-arrow{display:none}.progress-summary{grid-template-columns:230px 1fr}.heatmap{grid-template-columns:repeat(10,1fr)}.hero h2{font-size:20px}}
@media(max-width:760px){.sidebar{transform:translateX(-100%);transition:transform .2s;width:242px}.sidebar.open{transform:translateX(0)}.scrim.visible{display:block;position:fixed;inset:0;background:#17233870;z-index:19}.mobile-close{display:block;position:absolute;right:8px;top:8px}.workspace{margin:0;width:100%}.menu-btn{display:inline-block;font-size:18px;margin-left:-7px;margin-right:12px;color:#536078}.topbar{height:64px;padding:0 20px}.topbar-left{font-size:10px;display:flex;align-items:center}.topbar-right{gap:12px}.online-pill{font-size:9px}.avatar{width:30px;height:30px;font-size:9px}main{padding:25px 20px 35px}.page-heading{margin-bottom:20px}h1{font-size:25px}.page-heading .btn{font-size:10px;padding:9px 12px;gap:9px}.subtitle{font-size:11px}.hero{padding:22px;margin-bottom:18px}.hero-art{width:120px;transform:scale(.85)}.hero p{font-size:11px}.hero h2{font-size:20px}.stat-head{font-size:10px}.stats{grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:25px}.stat{padding:16px}.stat-value{font-size:27px}.system-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.system-card{padding:16px}.system-title{font-size:12px}.system-icon{width:34px;height:34px}.progress-summary{grid-template-columns:1fr}.heatmap{grid-template-columns:repeat(20,1fr)}.progress-table th,.progress-table td{padding-left:8px;padding-right:8px}.question-row{padding:15px;gap:10px;grid-template-columns:23px 1fr 60px 28px}.question-row strong{font-size:11px}.question-row .flag-btn{padding:4px 6px}.difficulty{font-size:8px;padding:3px 5px}.filters{gap:8px}.filters input{width:100%;flex-basis:100%}.filters select{flex:1;min-width:130px}.tabs{gap:6px}.tabs button{font-size:10px;padding:7px 10px}.question-card{padding:21px 18px}.question-stem{font-size:14px;line-height:1.85}.question-actions{flex-wrap:wrap}.question-actions .hint{width:100%;order:2}.question-top{padding-bottom:15px;margin-bottom:17px}.question-actions .btn{padding:11px 16px}.session-side{grid-template-columns:1fr 1fr}.option-choice{padding:11px 12px;font-size:12px;gap:10px}.strike-btn{width:39px}.explanation{padding:17px}.question-grid{grid-template-columns:repeat(5,1fr)}.session-side .panel{padding:15px}.hero-art:before{width:120px;height:120px}footer{padding:10px 20px 20px;font-size:8px;gap:7px}.form-row{gap:10px}dialog{padding:23px}.progress-table{font-size:11px}.table-system{min-width:155px}.page-heading .eyebrow{font-size:9px}.question-counter{font-size:9px}}
@media(max-width:430px){.topbar-right .online-pill{display:none}.hero{padding:21px}.hero-art{display:none}.hero h2{font-size:21px}.page-heading{align-items:flex-start;gap:10px}.page-heading .btn{margin-top:18px}.system-card{padding:14px}.system-top{gap:8px}.system-icon{width:29px;height:29px;font-size:16px}.system-title{font-size:11px}.system-total{font-size:9px}.system-meta{font-size:9px}.dashboard-right{grid-template-columns:1fr}.dashboard-right .note-panel{grid-column:auto}.session-side{grid-template-columns:1fr}.session-side .question-grid{grid-template-columns:repeat(6,1fr)}.question-row{grid-template-columns:22px 1fr 40px}.question-row>.difficulty{display:none}.heatmap{gap:4px}.hero .btn{font-size:11px}.question-tools{gap:4px}.question-tags{gap:5px}.question-tags .tag{font-size:9px}.question-tags .difficulty{font-size:8px}.progress-summary .panel{padding:20px}.topbar-left{font-size:10px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

.session-stat b.green-text{color:var(--green)}.session-stat b.red-text{color:var(--red)}

@media(max-width:760px){.menu-btn,.mobile-close{min-width:40px;min-height:40px}.question-row .flag-btn{min-height:38px}.quick-nav button{min-height:44px}}