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var(--sans);color:var(--accent-ink);margin-top:2px}@media (width<=480px){.exam-countdown{text-align:center;justify-content:center;padding:16px}.exam-countdown-info{align-items:center;min-width:0}.exam-countdown-units{justify-content:center;gap:8px}.exam-countdown-unit{min-width:56px;padding:6px 4px}.exam-countdown-unit b{font-size:19px}}.goal-card{background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:20px;align-items:center;gap:24px;margin-bottom:20px;padding:22px 26px;display:flex}.goal-ring{--p:0;background:conic-gradient(var(--accent) calc(var(--p) * 1%), var(--surface-2) 0);border-radius:50%;flex:none;place-items:center;width:108px;height:108px;display:grid}.goal-ring-inner{background:var(--surface);text-align:center;width:84px;height:84px;box-shadow:inset 0 0 0 1px var(--line);border-radius:50%;place-items:center;display:grid}.goal-ring-inner b{letter-spacing:-.02em;font-size:26px;display:block}.goal-ring-inner span{color:var(--muted);font-size:12px}.goal-copy h2{margin:0 0 4px;font-size:18px}.goal-copy p{color:var(--muted);margin:0 0 10px;font-size:14px}.goal-mini{color:var(--ink-soft);gap:16px;font-size:13px;display:flex}.goal-mini b{color:var(--accent-ink)}.mission-grid{grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin-bottom:22px;display:grid}.tile{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px}.tile .ico{font-size:18px}.tile b{letter-spacing:-.02em;margin-top:6px;font-size:24px;display:block}.tile span{color:var(--muted);font-size:12px}.big-btn{text-align:left;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);cursor:pointer;box-shadow:var(--shadow);color:var(--ink);align-items:center;gap:14px;padding:16px 18px;transition:transform .12s,border-color .12s;display:flex}.big-btn:hover{border-color:var(--accent);transform:translateY(-2px)}.big-btn .bb-ico{text-align:center;width:30px;font-size:20px}.big-btn b{font-size:15px;display:block}.big-btn em{color:var(--muted);font-size:12px;font-style:normal}.big-btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.big-btn.primary em{color:#fffc}.big-btn.primary:hover{background:var(--accent-ink)}.mission-cols{grid-template-columns:1fr 1fr;gap:16px;display:grid}.spec-bars{flex-direction:column;gap:12px;display:flex}.spec-bar .sb-top{justify-content:space-between;margin-bottom:5px;font-size:13px;display:flex}.spec-bar .sb-top span:last-child{color:var(--muted)}.spec-bar .sb-track{background:var(--surface-2);border-radius:999px;height:7px;overflow:hidden}.spec-bar .sb-fill{background:linear-gradient(90deg, var(--accent), var(--accent-ink));border-radius:999px;height:100%}.recent-list{flex-direction:column;gap:4px;margin:0;padding:0;list-style:none;display:flex}.recent-list li{cursor:pointer;color:var(--ink-soft);border-radius:8px;align-items:baseline;gap:8px;padding:6px 8px;font-size:13px;display:flex}.recent-list li:hover{background:var(--surface-2)}.recent-list li .rl-id{font:600 11px var(--mono);color:var(--muted)}.recent-list li .rl-freq{color:var(--accent-ink);margin-left:auto;font-size:11px}.mission-foot{color:var(--muted);flex-wrap:wrap;gap:8px;margin-top:26px;font-size:12px;display:flex}.progress-fill.alt{background:linear-gradient(90deg, var(--gold), #d9a441)}.jump{border:1px solid var(--line);background:var(--surface);border-radius:9px;align-items:center;gap:4px;padding:0 8px;display:inline-flex}.jump span{color:var(--muted);font:700 12px var(--mono)}.jump input{width:52px;color:var(--ink);font:600 13px var(--sans);background:0 0;border:0;padding:7px 2px}.jump input:focus{outline:none}.quick{border:1px solid color-mix(in srgb, var(--accent) 26%, var(--line));border-radius:var(--radius-sm);background:var(--accent-wash);margin:4px 0 16px;overflow:hidden}.quick-head{cursor:pointer;width:100%;font:700 12px var(--sans);letter-spacing:.04em;text-transform:uppercase;color:var(--accent-ink);background:0 0;border:0;align-items:center;gap:8px;padding:10px 14px;display:flex}.quick-head .qk-caret{margin-left:auto;transition:transform .15s}.quick.open .quick-head .qk-caret{transform:rotate(90deg)}.quick-body{padding:0 14px 12px;display:none}.quick.open .quick-body{grid-template-columns:1fr 1fr;gap:8px 16px;display:grid}.quick-item{font-size:calc(13px * var(--read-scale))}.quick-item b{text-transform:uppercase;letter-spacing:.05em;color:var(--accent-ink);margin-bottom:2px;font-size:11px;display:block}.quick-item span{color:var(--ink-soft)}[data-mode=rapid] .quick-body{grid-template-columns:1fr 1fr;gap:8px 16px;display:grid!important}[data-mode=rapid] .quick-head .qk-caret{display:none}.readtime{font:600 11px var(--sans);color:var(--muted)}.notes-wrap{margin-top:24px;padding:0 20px 16px}.notes-wrap textarea{resize:vertical;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--surface-2);width:100%;min-height:84px;color:var(--ink);font:400 14px var(--sans);padding:10px 12px;line-height:1.5}.notes-wrap textarea:focus{border-color:var(--accent);background:var(--surface);box-shadow:0 0 0 3px var(--accent-wash);outline:none}.foot-btn.diff.on{color:var(--rose);border-color:var(--rose);background:var(--rose-wash)}.foot-btn.mark.on{color:var(--accent-ink);border-color:var(--accent);background:var(--accent-wash)}.foot-btn.bm.on{color:var(--violet);border-color:var(--violet);background:var(--violet-wash)}.view-settings{padding:clamp(20px,4vw,44px) clamp(16px,4vw,40px) 80px}.settings-wrap{max-width:680px;margin:0 auto}.settings-title{font:800 clamp(26px, 4vw, 34px)/1.05 var(--sans);letter-spacing:-.03em;margin:0 0 22px}.set-group{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:16px;padding:18px 20px}.set-group h2{text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:0 0 14px;font-size:12px}.set-row{border-top:1px solid var(--line-soft);justify-content:space-between;align-items:center;gap:12px;padding:8px 0;display:flex}.set-group>.set-row:first-of-type{border-top:0}.set-row>span{font-size:14px}.set-row.range input{max-width:260px;accent-color:var(--accent);flex:1}.set-row.range em{font-style:normal;font:600 12px var(--mono);color:var(--muted);text-align:right;min-width:44px}.read-preview{border:1px dashed var(--line);border-radius:var(--radius-sm);background:var(--surface-2);margin-top:12px;padding:16px}.read-preview .scenario{margin:0}.set-note{color:var(--muted);margin:0 0 12px;font-size:13px}.set-btns{flex-wrap:wrap;gap:8px;display:flex}.set-btns .ghost-btn{flex:none}.set-row-stack{flex-direction:column;align-items:stretch;gap:6px}.set-row-stack>span{color:var(--muted);font-size:13px;font-weight:600}.set-row-cols{flex-direction:row;gap:14px}.set-row-cols>div{flex-direction:column;flex:1 1 0;gap:6px;display:flex}.set-input{box-sizing:border-box;border:1px solid var(--line);background:var(--surface-2);width:100%;height:40px;color:var(--ink);border-radius:10px;padding:0 12px;font-family:inherit;font-size:14px}.set-input:focus{border-color:var(--accent);background:var(--surface);box-shadow:0 0 0 3px var(--accent-wash);outline:none}.exam-countdown-preview{border:1px dashed var(--line);border-radius:var(--radius-sm);background:var(--surface-2);margin-top:14px;padding:16px}.exam-countdown-preview-label{text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:10px;font-size:11px;display:block}.exam-countdown-preview .exam-countdown{margin-bottom:0}@media (width<=480px){.set-row-cols{flex-direction:column;gap:14px}}.ghost-btn.danger{color:var(--rose);border-color:color-mix(in srgb, var(--rose) 40%, var(--line))}.ghost-btn.danger:hover{background:var(--rose-wash);border-color:var(--rose)}.qpe-btn{color:#10b981;cursor:pointer;font:600 13px var(--sans);background:0 0;border:1px solid #10b981;border-radius:8px;flex-direction:column;justify-content:center;align-items:center;gap:4px;padding:8px 16px;transition:all .2s;display:flex}.qpe-btn:hover{background:#10b9811a}.qpe-btn.danger{color:#ef4444;border-color:#ef4444}.qpe-btn.danger:hover{background:#ef44441a}[data-focus=on] .topbar,[data-focus=on] .sidebar,[data-focus=on] .scrim,[data-focus=on] .content-head,[data-focus=on] .card-foot,[data-focus=on] .mode-fab{display:none!important}[data-focus=on] .layout{grid-template-columns:1fr}[data-focus=on] .content{padding-top:40px}[data-focus=on]{--read-width:min(820px, 92vw)}.focus-bar{left:50%;bottom:calc(20px + env(safe-area-inset-bottom));z-index:60;background:color-mix(in srgb, var(--surface) 92%, transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--line);box-shadow:var(--shadow-lg);border-radius:14px;gap:4px;padding:5px;display:flex;position:fixed;transform:translate(-50%)}.fb-btn{color:var(--ink-soft);font:600 13px var(--sans);cursor:pointer;background:0 0;border:0;border-radius:10px;padding:8px 14px}.fb-btn:hover{background:var(--surface-2);color:var(--ink)}#focusExit{color:var(--accent-ink)}.lightbox{z-index:80;background:#080c0aeb;flex-direction:column;display:flex;position:fixed;inset:0}.media img{cursor:zoom-in}.lb-bar{justify-content:center;gap:6px;padding:14px;display:flex}.lb-btn{color:#fff;font:600 14px var(--sans);cursor:pointer;background:#ffffff14;border:1px solid #ffffff2e;border-radius:10px;min-width:40px;height:40px;padding:0 12px}.lb-btn:hover{background:#ffffff2e}.lb-stage{touch-action:none;flex:1;place-items:center;display:grid;overflow:hidden}.lb-stage img{transform-origin:50%;-webkit-user-select:none;user-select:none;max-width:96%;max-height:100%;transition:transform .12s}[data-anim=off] .lb-stage img{transition:none}[data-anim=off] *{transition:none!important;animation:none!important}@media (width<=820px){.mission-cols{grid-template-columns:1fr}.goal-card{text-align:center;flex-direction:column}.goal-mini{justify-content:center}}@media (width<=620px){.popover{width:auto;left:10px;right:10px}.notes-wrap{padding-left:15px;padding-right:15px}}[data-density=compact] .cards{gap:14px}[data-density=compact] .card-body{padding-top:2px;padding-bottom:14px}[data-density=compact] .objectives{margin:6px 0 12px;padding:10px 12px}[data-density=compact] .explanation{gap:10px;margin-top:12px}[data-density=compact] .section{padding:11px 13px}[data-density=compact] .answer-block{margin-top:16px}[data-density=compact] [data-mode=review] .answer-gap{height:20px}[data-density=compact] .stem{margin-top:12px}[data-density=compact] .quick{margin-bottom:12px}.srs-chip{font:600 11px var(--sans);color:var(--muted);background:var(--surface-2);border:1px solid var(--line);border-radius:999px;padding:2px 9px}.srs-chip.due{color:var(--accent-ink);background:var(--accent-wash);border-color:color-mix(in srgb, var(--accent) 30%, transparent)}[data-srs=off] .srs-chip{display:none}.srs{border-top:1px dashed var(--line);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-top:16px;padding-top:14px;display:flex}.srs-q{color:var(--muted);font-size:13px}.srs-btns{flex-wrap:wrap;gap:6px;display:flex}.srs-btn{border:1px solid var(--line);background:var(--surface);color:var(--ink-soft);font:700 13px var(--sans);cursor:pointer;border-bottom-width:2px;border-radius:10px;flex-direction:column;align-items:center;gap:2px;min-width:56px;padding:8px 16px;display:flex}.srs-btn em{opacity:.65;font-size:10px;font-style:normal;font-weight:600}.srs-btn:hover{transform:translateY(-1px)}.srs-btn.again{border-bottom-color:var(--rose)}.srs-btn.again:hover{background:var(--rose-wash);color:var(--rose)}.srs-btn.hard{border-bottom-color:var(--gold)}.srs-btn.hard:hover{background:var(--gold-wash);color:var(--gold)}.srs-btn.good{border-bottom-color:var(--accent)}.srs-btn.good:hover{background:var(--accent-wash);color:var(--accent-ink)}.srs-btn.easy{border-bottom-color:var(--violet)}.srs-btn.easy:hover{background:var(--violet-wash);color:var(--violet)}.card:not(.revealed) .srs,[data-srs=off] .srs,[data-mode=rapid] .srs{display:none}[data-view=diagnostics] #viewDiagnostics{display:block}.view-diagnostics{padding:clamp(20px,4vw,44px) clamp(16px,4vw,40px) 80px}.diag-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:10px;display:grid}.diag-item{background:var(--surface-2);border-radius:var(--radius-sm);padding:12px 14px}.diag-item .k{text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-size:11px}.diag-item .v{font:600 14px var(--mono);color:var(--ink);word-break:break-word;margin-top:4px}.diag-item .v.ok{color:var(--accent-ink)}.diag-item .v.warn{color:var(--rose)}.diag-err{background:var(--surface-2);border:1px solid var(--line);border-radius:var(--radius-sm);font:400 12px var(--mono);color:var(--ink-soft);white-space:pre-wrap;word-break:break-word;max-height:220px;margin:0;padding:12px 14px;overflow:auto}.diag-link{width:100%;color:var(--muted);font:600 12px var(--sans);text-align:center;cursor:pointer;opacity:.7;background:0 0;border:0;margin-top:10px;padding:8px;display:block}.diag-link:hover{color:var(--accent-ink);opacity:1}.mission-foot #missionVersion{cursor:pointer;border-bottom:1px dotted var(--muted)}[data-theme=dark] .lightbox{background:#0c0d0ef0}.data-warning{background:var(--amber-wash);border:1px solid color-mix(in srgb, var(--amber) 40%, transparent);color:var(--ink);border-radius:var(--radius-sm);margin:0 0 20px;padding:14px 16px;font-size:14px;line-height:1.55}.data-warning code{font:600 12px var(--mono);background:var(--surface-2);border-radius:5px;padding:1px 6px}.perf-panel{margin-bottom:22px}.perf-grid{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin-bottom:14px;display:grid}.perf-stat{background:var(--surface-2);border-radius:var(--radius-sm);padding:12px 14px}.perf-stat b{letter-spacing:-.02em;font-size:22px;display:block}.perf-stat span{color:var(--muted);font-size:11px}.perf-topics{grid-template-columns:1fr 1fr;gap:16px;display:grid}.perf-topics h3{text-transform:uppercase;letter-spacing:.07em;color:var(--muted);margin:0 0 8px;font-size:11px}.perf-topics ul{flex-direction:column;gap:5px;margin:0;padding:0;list-style:none;display:flex}.perf-topics li{color:var(--ink-soft);justify-content:space-between;gap:8px;font-size:13px;display:flex}.perf-topics li .pct{font:600 12px var(--mono)}.perf-topics .weak li .pct{color:var(--rose)}.perf-topics .strong li .pct{color:var(--accent-ink)}.perf-empty{color:var(--muted);font-size:13px}@media (width<=620px){.perf-topics{grid-template-columns:1fr}}.content{align-items:flex-start;gap:20px;display:flex}.study-main{flex:auto;min-width:0}.nav-rail{width:96px;top:calc(var(--topbar-h) + 16px);max-height:calc(100vh - var(--topbar-h) - 32px);background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);flex-direction:column;flex:none;display:flex;position:sticky;overflow:hidden}.nav-rail-head{font:600 11px/1 var(--sans);text-transform:uppercase;letter-spacing:.07em;color:var(--muted);text-align:center;border-bottom:1px solid var(--line);padding:12px 8px}.nav-grid{flex-direction:column;flex:auto;align-items:center;gap:6px;padding:10px;display:flex;overflow-y:auto}.nav-dot{border:1px solid var(--line);background:var(--surface-2);width:46px;height:32px;color:var(--ink-soft);font:600 13px var(--mono);cursor:pointer;border-radius:8px;flex:none;transition:transform 80ms}.nav-dot:hover{transform:translateY(-1px)}.nav-dot:not(.first):not(.wrong):not(.retry):hover{border-color:var(--accent);color:var(--accent-ink);background:var(--surface);box-shadow:0 4px 12px var(--accent-wash)}.nav-dot.first{background:var(--surface-2);border-color:var(--accent);color:var(--accent)}.nav-dot.retry{background:var(--surface-2);border-color:var(--gold);color:var(--gold)}.nav-dot.wrong{background:var(--surface-2);border-color:var(--rose);color:var(--rose)}.nav-dot.first.session-answered{background:var(--accent);color:#fff}.nav-dot.retry.session-answered{background:var(--gold);color:#201a08}.nav-dot.wrong.session-answered{background:var(--rose);color:#fff}.nav-dot.current{outline:3px solid var(--accent-ink);outline-offset:1px}.nav-legend-v{border-top:1px solid var(--line);flex-direction:column;gap:6px;padding:10px 8px;display:flex}.nav-legend-v span{color:var(--muted);align-items:center;gap:6px;font-size:10px;line-height:1.1;display:flex}.nav-legend-v .nl{border-radius:3px;flex:none;width:11px;height:11px;display:inline-block}.nl.none{background:var(--surface-2);border:1px solid var(--line)}.nl.first{background:var(--surface-2);border:1px solid var(--accent)}.nl.retry{background:var(--surface-2);border:1px solid var(--gold)}.nl.wrong{background:var(--surface-2);border:1px solid var(--rose)}@media (width<=920px){.content{flex-direction:column}.nav-rail{flex-direction:column;align-items:stretch;width:100%;min-width:0;max-width:100%;position:static;overflow:hidden}.nav-rail-head{display:none}.nav-rail .nav-grid{-webkit-overflow-scrolling:touch;flex-flow:row!important;gap:8px!important;max-height:none!important;margin-bottom:8px!important;padding-bottom:8px!important;overflow-x:auto!important}.nav-legend-v{display:none}}.session-bar{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);justify-content:space-between;align-items:center;gap:12px;margin-top:20px;padding:12px 16px;display:flex}.session-info{font:600 13px var(--mono);color:var(--muted);text-align:center;flex:1}.session-complete{text-align:center;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:40px 24px}.session-complete .sc-emoji{font-size:44px}.session-complete h2{margin:8px 0}.session-complete p{color:var(--ink-soft);max-width:480px;margin:0 auto 18px}.sc-stats{flex-wrap:wrap;justify-content:center;gap:16px;margin-bottom:20px;display:flex}.sc-stats 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