:root{color-scheme:dark;--bg: #1a1b26;--bg-dark: #16161e;--surface: #1f2335;--surface-2: #24283b;--text: #c0caf5;--muted: #7e88b4;--border: #292e42;--accent: #7aa2f7;--accent-2: #bb9af7;--accent-ink: #1a1b26;--accent-weak: rgba(122, 162, 247, .14);--good: #9ece6a;--good-weak: rgba(158, 206, 106, .13);--bad: #f7768e;--bad-weak: rgba(247, 118, 142, .13);--warn: #e0af68;--info: #7dcfff;--scrim: rgba(10, 12, 20, .55);--ring-bg: #292e42;--shadow: 0 1px 2px rgba(0, 0, 0, .25), 0 10px 30px rgba(0, 0, 0, .35);--radius: 14px;--maxw: 720px;--mono: ui-monospace, "SF Mono", "JetBrains Mono", "Fira Code", Menlo, Consolas, monospace}@media(prefers-color-scheme:light){:root{color-scheme:light;--bg: #e1e2e7;--bg-dark: #d0d5e3;--surface: #ffffff;--surface-2: #d5d6db;--text: #24283b;--muted: #6b7089;--border: #c4c8da;--accent: #2e7de9;--accent-2: #9854f1;--accent-ink: #ffffff;--accent-weak: rgba(46, 125, 233, .1);--good: #587539;--good-weak: rgba(88, 117, 57, .1);--bad: #f52a65;--bad-weak: rgba(245, 42, 101, .1);--warn: #8f5e15;--info: #007197;--scrim: rgba(16, 24, 40, .35);--ring-bg: #d5d6db;--shadow: 0 1px 2px rgba(16, 24, 40, .05), 0 6px 20px rgba(16, 24, 40, .06)}}*{box-sizing:border-box}html,body{margin:0}html{-webkit-text-size-adjust:100%;text-size-adjust:100%;overflow-x:clip}body{overflow-x:clip}button,summary,select,input,textarea,[role=button]{touch-action:manipulation;-webkit-tap-highlight-color:transparent}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5;-webkit-font-smoothing:antialiased;isolation:isolate}h1,h2,h3{line-height:1.25;margin:0 0 .4rem}h2{font-size:1.4rem}p{margin:.4rem 0}.muted{color:var(--muted)}.small{font-size:.85rem}.topbar{display:flex;align-items:center;gap:.6rem;padding:.8rem max(1rem,env(safe-area-inset-right)) .8rem max(1rem,env(safe-area-inset-left));border-bottom:1px solid var(--border);position:sticky;top:0;background:var(--bg);z-index:5}.brand{display:inline-flex;align-items:center;gap:.5rem;background:none;border:0;color:var(--text);cursor:pointer;font-size:1.05rem;font-weight:650;padding:.2rem .3rem;border-radius:8px}@media(hover:hover){.brand:hover{background:var(--surface-2)}}.brand:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.brand-mark{display:inline-flex;width:1.15em;height:1.15em}.brand-mark svg{width:100%;height:100%;display:block}.demo-badge{font-size:.7rem;font-weight:700;letter-spacing:.06em;color:var(--accent);border:1px solid var(--accent);border-radius:999px;padding:.1rem .5rem}.topbar-user{margin-left:auto;display:inline-flex;align-items:center;gap:.6rem;min-width:0}.user-email{font-size:.82rem;color:var(--muted);max-width:min(44vw,240px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.logout-btn{min-height:34px;padding:.35rem .7rem;font-size:.85rem}.topbar-link{background:none;border:0;cursor:pointer;font-family:var(--mono);font-size:.82rem;letter-spacing:.04em;color:var(--muted);padding:.3rem .5rem;border-radius:6px}@media(hover:hover){.topbar-link:hover{color:var(--accent);background:var(--surface-2)}}.topbar-link:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.view{max-width:var(--maxw);margin:0 auto;padding:1.2rem max(1rem,env(safe-area-inset-right)) calc(4rem + env(safe-area-inset-bottom)) max(1rem,env(safe-area-inset-left))}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.2rem;margin-bottom:1rem}.btn{appearance:none;border:1px solid var(--border);background:var(--surface);color:var(--text);font:inherit;font-weight:550;padding:.7rem 1.1rem;border-radius:10px;cursor:pointer;transition:background .12s,border-color .12s,transform .05s;display:inline-flex;align-items:center;justify-content:center;gap:.4rem;min-height:44px}@media(hover:hover){.btn:hover{background:var(--surface-2)}}.btn:active{transform:translateY(1px)}.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.btn-primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);font-weight:650}@media(hover:hover){.btn-primary:hover{filter:brightness(1.08);background:var(--accent)}}.btn-ghost{border-color:transparent;background:transparent;color:var(--muted)}@media(hover:hover){.btn-ghost:hover{background:var(--surface-2)}}.btn:disabled{opacity:.65;cursor:default}.chip{display:inline-flex;align-items:center;font-size:.72rem;font-weight:650;padding:.15rem .55rem;border-radius:999px;background:var(--surface-2);color:var(--muted);text-transform:capitalize;letter-spacing:.01em}.chip-accent{background:var(--accent-weak);color:var(--accent)}.chip-good{background:var(--good-weak);color:var(--good)}.chip-bad{background:var(--bad-weak);color:var(--bad)}.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:.6rem;margin-top:1rem}.mastery-grid{margin-top:.6rem;border-top:1px solid var(--border);padding-top:.6rem}.stat{background:var(--surface-2);border-radius:10px;padding:.7rem .6rem;text-align:center}.stat-value{font-size:1.3rem;font-weight:700}.stat-label{font-size:.75rem;color:var(--muted)}.stat.accent .stat-value{color:var(--accent)}.stat.warn .stat-value{color:var(--warn)}.ring{position:relative;flex:0 0 auto;display:grid;place-items:center}.ring svg{display:block}.ring-bg{stroke:var(--ring-bg)}.ring-fg{stroke:var(--accent);transition:stroke-dashoffset .6s ease}.ring-label{position:absolute;text-align:center}.ring-label strong{display:block;font-size:1.25rem}.ring-label span{font-size:.72rem;color:var(--muted)}.empty{text-align:center;padding:3rem 1rem}.empty .btn{margin-top:1rem}.loading{display:flex;align-items:center;justify-content:center;gap:.6rem;color:var(--muted);padding:3rem 1rem}.spinner svg{animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.toasts{position:fixed;left:50%;bottom:max(1rem,env(safe-area-inset-bottom));transform:translate(-50%);z-index:50;display:grid;gap:.5rem;width:min(92vw,460px)}.toast{display:flex;align-items:center;gap:.6rem;background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:.7rem .9rem;box-shadow:var(--shadow);animation:rise .18s ease}.toast:before{content:"";flex:0 0 auto;width:8px;height:8px;border-radius:999px;background:var(--bad)}.toast-info:before{background:var(--accent)}.toast-success:before{background:var(--good)}.toast-info{border-left-color:var(--accent)}.toast-success{border-left-color:var(--good)}.toast-msg{flex:1;font-size:.92rem}.toast-action{background:none;border:0;color:var(--accent);font:inherit;font-weight:650;cursor:pointer;padding:.2rem .4rem}.toast-close{background:none;border:0;color:var(--muted);font-size:1.2rem;line-height:1;cursor:pointer;padding:0 .2rem}.toast-action:focus-visible,.toast-close:focus-visible{outline:2px solid var(--accent);outline-offset:2px}@keyframes rise{0%{opacity:0;transform:translateY(8px)}}.modal-overlay{position:fixed;inset:0;background:var(--scrim);display:grid;place-items:center;z-index:100;padding:max(1rem,env(safe-area-inset-top)) max(1rem,env(safe-area-inset-right)) max(1rem,env(safe-area-inset-bottom)) max(1rem,env(safe-area-inset-left))}.modal{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.6rem;width:min(92vw,380px);display:grid;gap:.7rem;max-height:calc(100vh - 2rem);max-height:calc(100dvh - 2rem);overflow-y:auto}.modal h2{margin:0 0 .3rem;font-size:1.1rem}.modal-actions{display:flex;gap:.5rem;justify-content:flex-end;margin-top:.7rem}.auth-view{display:grid;place-items:center;min-height:62vh;min-height:62svh;padding:1.5rem 0}.auth-card{width:min(92vw,380px);gap:.55rem}.auth-brand{display:inline-flex;align-items:center;gap:.55rem}.auth-brand .brand-mark{width:1.7rem;height:1.7rem}.brand-lg{font-size:1.5rem;font-weight:700}.auth-tagline{margin:.1rem 0 .4rem;font-size:.92rem}.auth-mode{font-family:var(--mono);font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:var(--accent);margin:0 0 .3rem}.auth-label{font-size:.78rem;font-weight:600;color:var(--muted);margin-top:.15rem}.auth-input{width:100%;font:inherit;color:var(--text);background:var(--surface);border:1.5px solid var(--border);border-radius:10px;padding:.75rem .85rem}.auth-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-weak)}.auth-input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.auth-submit{margin-top:.7rem;width:100%}.auth-toggle{margin:.6rem 0 0;font-size:.9rem;text-align:center}.auth-help{margin:.1rem 0 .6rem;font-size:.9rem;line-height:1.5}.auth-forgot{margin:.5rem 0 0;font-size:.85rem;text-align:right}.auth-check-email-addr{margin:0 0 .4rem;font-size:.9rem;word-break:break-all}.field-error{color:var(--bad);font-size:.85rem}.link-btn{background:none;border:0;padding:0;font:inherit;cursor:pointer;color:var(--accent);font-weight:600}@media(hover:hover){.link-btn:hover{text-decoration:underline}}.link-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}.auth-divider{display:flex;align-items:center;gap:.6rem;margin:.8rem 0 .2rem;color:var(--muted);font-size:.8rem}.auth-divider:before,.auth-divider:after{content:"";flex:1;height:1px;background:var(--border)}.oauth-btn{width:100%;margin-top:.4rem}.timer,.progress-count,.remaining,.stat-value,.ring-label strong,.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em}.problem-text{font-size:1.15rem;margin-bottom:1rem;overflow-x:auto}.problem-text .katex{font-size:1.15em}.answer-field{margin-bottom:.7rem}.answer-input,.work-input{width:100%;font:inherit;color:var(--text);background:var(--surface);border:1.5px solid var(--border);border-radius:10px;padding:.75rem .85rem}.answer-input{font-size:1.1rem}.answer-input:focus,.work-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-weak)}.answer-input:focus-visible,.work-input:focus-visible,.sym-key:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.field-hint{font-size:.8rem;color:var(--muted);margin:.35rem .2rem 0}.choice-input{margin-bottom:.7rem;outline:none}.choice-buttons{display:grid;grid-template-columns:minmax(0,1fr);gap:.5rem}.choice-button{display:flex;width:100%;min-width:0;justify-content:flex-start;text-align:left;white-space:normal;overflow-wrap:anywhere}.choice-text{display:block;min-width:0;max-width:100%;overflow-wrap:anywhere}.choice-button.is-selected,.choice-button.is-selected:disabled{opacity:1;border:2px solid var(--accent);background:var(--accent-weak);color:var(--text)}.choice-text .katex-display{overflow-x:auto;overflow-y:hidden;max-width:100%}.sym-palette{display:flex;flex-wrap:wrap;gap:.3rem;margin-top:.4rem}.sym-key{min-height:44px;min-width:2.75rem;padding:.25rem .45rem;font-size:1rem;line-height:1;color:var(--text);background:var(--surface);border:1px solid var(--border);border-radius:6px;cursor:pointer}@media(hover:hover){.sym-key:hover{border-color:var(--accent);background:var(--accent-weak)}}.work{margin-bottom:.8rem}.work summary{cursor:pointer;color:var(--muted);font-size:.9rem;padding:.3rem 0}.work summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.work-input{margin-top:.5rem;resize:vertical}.status-card{padding-bottom:1rem}.status-head{display:flex;align-items:center;justify-content:space-between;gap:1rem}.status-head h2{margin-bottom:.15rem}.course-arc{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap;margin-bottom:1rem;font-size:.9rem}.arc-course{color:var(--muted)}.arc-current{color:var(--accent);font-weight:700}.arc-sep{color:var(--border)}.btn-hero{font-size:1.05rem;padding:.85rem 1.4rem;width:100%}.primary-action{margin:1.1rem 0 .5rem;display:grid;gap:.5rem}.primary-sub{margin:0;text-align:center}.caught-up{font-size:1.05rem;margin:0;text-align:center}.onboard-card{text-align:center}.onboard-card .btn-hero{margin:1rem 0 .4rem}.onboard-foot{margin-top:.4rem}.more-menu{margin-top:1.2rem;border-top:1px solid var(--border);padding-top:.6rem}.more-menu summary{cursor:pointer;color:var(--muted);font-size:.9rem;list-style:none;padding:.3rem 0}.more-menu summary::-webkit-details-marker{display:none}.more-menu summary:before{content:"⌄ "}.more-menu[open] summary:before{content:"⌃ "}.more-menu summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.more-actions{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.6rem}.more-caption{margin:.6rem 0 0}.demo-hint{text-align:center;margin-top:1rem}.retention-card{margin-top:1rem;border-top:1px solid var(--border);padding-top:.8rem}.retention-card h3{margin:0 0 .2rem;font-size:1rem}.retention-card p{margin:.4rem 0 0}.retention-card .btn{margin-top:.6rem}.retention-table{width:100%;margin-top:.6rem;border-collapse:collapse;font-size:.85rem}.retention-table th,.retention-table td{text-align:left;padding:.3rem .5rem .3rem 0}.retention-table thead th{color:var(--muted);font-weight:500;font-size:.75rem}.retention-table tbody tr{border-top:1px solid var(--border)}.picker-list{display:grid;gap:.4rem;margin-top:.7rem}.btn.is-busy{position:relative;color:transparent;opacity:.65;cursor:default}.btn.is-busy:after{content:"";position:absolute;width:16px;height:16px;border-radius:50%;border:2px solid currentColor;border-top-color:transparent;color:var(--muted);animation:spin .7s linear infinite}.btn-primary.is-busy:after{color:var(--accent-ink)}.problem-card .actions{margin-top:.6rem;margin-bottom:1rem}.problem-report{border:0;background:transparent;padding:.1rem .2rem;box-shadow:none;margin-bottom:0}.problem-report:has([aria-expanded=true]){border:1px solid var(--border);background:var(--surface);padding:1.2rem;box-shadow:var(--shadow);margin-bottom:1rem}.teach-card>.btn{margin-top:.3rem}.task-header{margin-bottom:.8rem}.task-meta{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap}.topic-name{font-weight:650}.topic-module{font-size:.8rem;color:var(--muted)}.task-right{display:flex;align-items:center;gap:.8rem;margin-top:.35rem;color:var(--muted);font-size:.9rem}.timer{font-weight:600;color:var(--text)}.timer.urgent{color:var(--bad)}.btn-exit{margin-left:auto}.why-chip{margin-top:.5rem;font-size:.82rem;color:var(--muted);background:var(--surface-2);border-radius:8px;padding:.35rem .6rem;display:inline-block}.chip-lesson,.chip-review,.chip-drill{background:var(--accent-weak);color:var(--accent)}.chip-quiz,.chip-multi-step,.chip-quality{background:var(--surface-2)}.chip-xp{background:var(--good-weak);color:var(--good)}.chip-tag{background:var(--bad-weak);color:var(--bad);font-family:var(--mono)}.problem-card{padding:1.3rem 1.2rem}.actions{display:flex;gap:.5rem;flex-wrap:wrap}.actions .btn-primary{order:2}.hint-list{margin-bottom:.8rem}.hint{background:var(--accent-weak);border-radius:10px;padding:.6rem .8rem;margin-bottom:.5rem;font-size:.95rem}.hint-text{display:inline}.reference-lesson{margin-top:.6rem;padding:.6rem .8rem;border-radius:8px;background:var(--accent-weak);color:var(--muted);font-size:.92rem}.feedback{margin-top:1rem;padding:1rem;border-radius:12px;border:1px solid var(--border)}.feedback-correct{background:var(--good-weak);border-color:var(--good)}.feedback-incorrect{background:var(--bad-weak);border-color:var(--bad)}.feedback-rework{background:var(--surface-2)}.feedback-ungraded{background:var(--surface-2);border-color:var(--border)}.feedback-head{display:flex;align-items:center;gap:.5rem;margin-bottom:.5rem;flex-wrap:wrap}.feedback-mark{display:inline-flex}.feedback-correct .feedback-mark{color:var(--good)}.feedback-incorrect .feedback-mark{color:var(--bad)}.feedback-ungraded .feedback-mark{color:var(--muted)}.feedback-reason{margin:0 0 .5rem}.feedback-title{font-weight:700;font-size:1.05rem}.feedback-text{margin:.3rem 0 .6rem}.feedback .actions{margin-top:.8rem}.error-tags{display:flex;flex-wrap:wrap;gap:.3rem;margin-bottom:.4rem}.re-solve{font-size:.92rem}.solution{margin-top:.6rem;padding-top:.6rem;border-top:1px dashed var(--border)}.solution-label{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin-bottom:.2rem}.solution-text{overflow-x:auto}.remediation{margin:.3rem 0 0 1rem;padding:0}.diagnosis{margin-top:.6rem;padding-top:.6rem;border-top:1px dashed var(--border)}.diagnosis-note{margin:.2rem 0 0;font-size:.92rem}.diagnosis-prose{margin-top:.2rem;font-size:.95rem;overflow-x:auto}.summary-card{text-align:center}.summary-card .stat-grid{margin:1rem 0}.teach-badge{font-size:.72rem;text-transform:uppercase;letter-spacing:.05em;color:var(--accent);border:1px solid var(--accent);border-radius:999px;padding:.15rem .6rem}.teach-concept{font-size:1.05rem;margin-bottom:1rem}.teach-example{background:var(--surface-2);border-radius:10px;padding:.9rem 1.1rem;margin-bottom:1.1rem}.teach-label{font-size:.72rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin:.2rem 0 .3rem}.teach-problem{font-weight:600;margin-bottom:.6rem}.teach-steps{color:var(--muted)}.quiz-note{display:flex;align-items:center;justify-content:space-between;gap:.6rem;margin-top:.8rem;font-size:.85rem}.remaining{font-weight:650;color:var(--accent)}.quiz-recorded{font-size:1.05rem;margin-bottom:.3rem}.intro-card{outline:none}.intro-card h2{margin-bottom:.4rem}.intro-rules{margin:.9rem 0 .2rem;padding-left:1.15rem;display:flex;flex-direction:column;gap:.7rem}.intro-rules li{line-height:1.5}.intro-rules li::marker{color:var(--accent)}.intro-rules strong{color:var(--accent)}.intro-error{color:var(--bad);margin:.8rem 0 0;font-size:.92rem}.progress-bar{height:6px;background:var(--surface-2);border-radius:999px;overflow:hidden;margin-bottom:1rem}.progress-fill{height:100%;background:var(--accent);transform-origin:left center;transition:transform .3s ease}.view-diagnostic .feedback{display:flex;align-items:center;gap:.5rem}.feedback-skip{background:var(--surface-2)}.feedback-skip .feedback-mark{color:var(--muted)}.frontier-block{margin-top:.8rem}.frontier-list{margin:.3rem 0 0 1.1rem;padding:0}.view:has(.view-map){max-width:1180px}.map-head{display:flex;align-items:baseline;justify-content:space-between;gap:1rem}.map-readout{color:var(--muted);font-size:.85rem}.map-controls{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap;margin:.8rem 0}.map-spacer{flex:1 1 auto}.map-select{min-height:44px;padding:0 .6rem;font:inherit;background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:10px}.map-legend{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:.8rem}.legend-chip{display:inline-flex;align-items:center;gap:.4rem;padding:.25rem .6rem;border-radius:999px;background:var(--surface-2);font-size:.85rem}.legend-dot{width:10px;height:10px;border-radius:999px;background:var(--muted)}.ld-frontier{background:var(--accent)}.ld-learning{background:var(--info)}.ld-placed{background:var(--good)}.ld-floor{background:var(--accent-2)}.ld-untouched{background:var(--muted)}.map-body{position:relative}.map-canvas{position:relative;height:60vh;height:60dvh;min-height:320px;background:var(--bg-dark);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.map-host{position:absolute;inset:0;touch-action:none}.map-empty{padding:3rem 1rem;text-align:center}.map-panel{position:absolute;right:1rem;bottom:1rem;max-width:320px;padding:.8rem 1rem;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.map-panel h2{font-size:1.1rem}.map-panel-id{color:var(--muted);font-size:.8rem}.map-panel-state{display:flex;align-items:center;gap:.4rem}.map-list{display:flex;flex-direction:column;gap:.5rem}.map-list-group{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:.6rem .9rem}.map-list-group summary{display:flex;align-items:center;gap:.5rem;cursor:pointer;min-height:44px}.map-list-group ul{margin:.4rem 0 0;padding-left:1.2rem}.map-list-group li{padding:.15rem 0}.view:has(.view-ops),.view:has(.view-review){max-width:min(1400px,96vw)}.admin-head{display:flex;align-items:baseline;gap:.8rem;margin-bottom:.9rem}.admin-head h1{margin:0;font-size:1.5rem}.review-keys{margin:0}.admin-head .btn{margin-left:auto}.admin-card{margin-bottom:1rem}.table-scroll{overflow-x:auto}.admin-table{width:100%;border-collapse:collapse;font-size:.9rem}.admin-table th,.admin-table td{text-align:left;padding:.45rem .6rem;border-bottom:1px solid var(--border);vertical-align:top;white-space:nowrap}.admin-table thead th{font-size:.78rem;color:var(--muted);font-weight:600}.admin-table tfoot th,.admin-table tfoot td{border-bottom:0;font-weight:650}.admin-table .chip{margin-right:.3rem}.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}.admin-refused h2{font-size:1.2rem}.admin-refused p{max-width:46ch;margin-left:auto;margin-right:auto}.gate-note{border:1px solid var(--border);border-radius:10px;padding:.6rem .8rem;margin-top:.6rem}.gate-head{margin:0 0 .2rem;font-size:.85rem}.gate-line{margin:.2rem 0;font-size:.88rem}.gate-good{color:var(--good)}.gate-warn{color:var(--warn)}.gate-bad{color:var(--bad)}.gate-notes{margin:.3rem 0 0;padding-left:1.2rem;color:var(--muted)}.review-layout{display:grid;grid-template-columns:minmax(260px,340px) 1fr;gap:1rem}.review-queue{display:flex;flex-direction:column;gap:.8rem;max-height:78vh;max-height:78dvh;overflow-y:auto}.review-group{border:1px solid var(--border);border-radius:var(--radius);padding:.6rem}.review-group-head{display:flex;align-items:baseline;justify-content:space-between;gap:.5rem;margin:0 0 .3rem;font-size:.9rem}.review-rows{list-style:none;margin:0;padding:0;display:grid;gap:.35rem}.review-row{display:grid;gap:.25rem;width:100%;min-height:44px;text-align:left;padding:.5rem .6rem;border:1px solid var(--border);border-radius:10px;background:var(--surface);color:var(--text);font:inherit;cursor:pointer}@media(hover:hover){.review-row:hover{background:var(--surface-2)}}.review-row:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.review-row.is-selected{border-color:var(--accent);background:var(--accent-weak)}.review-row-top{display:flex;flex-wrap:wrap;gap:.25rem}.review-row-summary{font-size:.85rem;color:var(--muted);overflow-wrap:anywhere}.review-pane{min-width:0}.review-actions{display:flex;gap:.5rem;margin-bottom:.8rem}.review-doc-head{margin-bottom:.1rem;font-size:1.15rem}.review-digest{margin:0 0 .5rem;overflow-wrap:anywhere}.review-chips{display:flex;flex-wrap:wrap;gap:.3rem;margin:0 0 .6rem}.review-reason-line{color:var(--bad);font-size:.9rem}.instance-list{margin:.4rem 0 0;padding-left:1.4rem;display:grid;gap:.5rem}.instance{border-bottom:1px solid var(--border);padding-bottom:.5rem}.instance-text{font-size:1rem;overflow-x:auto}.instance-answer{font-size:.9rem;color:var(--good);overflow-x:auto}.review-body{margin-top:.8rem}.review-body summary{cursor:pointer;color:var(--muted);font-size:.9rem;min-height:44px}.review-body summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.review-body pre{margin:.4rem 0 0;padding:.6rem;overflow-x:auto;background:var(--bg-dark);border-radius:10px}@media(max-width:900px){.review-layout{grid-template-columns:1fr}.review-queue{max-height:none}}.auth-input,.answer-input,.work-input,.map-select{font-size:max(1rem,16px)}.answer-input{font-size:max(1.1rem,16px)}.auth-input,.answer-input,.work-input{-webkit-appearance:none;appearance:none}@media(pointer:coarse){.logout-btn,.topbar-link{min-height:44px}.toast-action,.toast-close{display:inline-flex;align-items:center;justify-content:center;min-height:44px;min-width:44px}.btn:not(.btn-primary):active,.sym-key:active,.review-row:active,.brand:active,.topbar-link:active{background:var(--surface-2)}}@media(max-width:480px){.view{padding-top:1rem;padding-left:max(.75rem,env(safe-area-inset-left));padding-right:max(.75rem,env(safe-area-inset-right))}.card,.problem-card{padding:1rem}h2{font-size:1.3rem}.topbar{gap:.4rem;padding-top:.6rem;padding-bottom:.6rem}.user-email{display:none}.ring svg{width:96px;height:96px}.stat-grid{gap:.4rem;grid-template-columns:repeat(auto-fit,minmax(112px,1fr))}.stat{padding:.6rem .4rem}.stat-value{font-size:1.15rem;white-space:nowrap}.status-head{flex-direction:column-reverse;align-items:flex-start}.problem-text{font-size:1.08rem}.task-right{flex-wrap:wrap}.quiz-note{flex-direction:column;align-items:flex-start;gap:.2rem}.actions .btn,.more-actions .btn,.modal-actions .btn,.review-actions .btn{flex:1 1 auto}.actions .btn-primary{flex-basis:100%}.modal-actions,.review-actions{flex-wrap:wrap}.modal{padding:1.2rem}.sym-palette{display:grid;grid-template-columns:repeat(6,1fr)}.sym-key{min-width:0;padding-left:0;padding-right:0}.map-head{flex-direction:column;align-items:flex-start;gap:.1rem}.map-select{flex:1 1 100%}.map-controls .btn{padding-left:.8rem;padding-right:.8rem}.map-canvas{height:55vh;height:55dvh}.map-panel{left:.5rem;right:.5rem;bottom:.5rem;max-width:none;padding:.7rem .8rem}.admin-head{flex-wrap:wrap}.admin-head h1{font-size:1.3rem}}@media(max-width:360px){.sym-palette{grid-template-columns:repeat(4,1fr)}}@media(max-height:500px){.auth-view{min-height:0;padding:.5rem 0}.map-canvas{height:70vh;height:70dvh;min-height:260px}}.backdrop{position:fixed;inset:0;z-index:-1;pointer-events:none;background:linear-gradient(color-mix(in srgb,var(--bg) 86%,transparent),color-mix(in srgb,var(--bg) 86%,transparent)),url(/eye-background.jpeg) center / cover fixed no-repeat}.view{background:color-mix(in srgb,var(--bg) 80%,transparent);box-shadow:0 0 0 max(1rem,env(safe-area-inset-left)) color-mix(in srgb,var(--bg) 80%,transparent)}@media(prefers-color-scheme:light){.view{background:color-mix(in srgb,var(--bg) 88%,transparent)}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}.math-visuals{display:flex;flex-direction:column;gap:.75rem;margin:.75rem 0}.math-visual{margin:0}.math-visual-frame svg{width:100%;height:auto;max-width:480px}.math-visual-text{color:var(--muted);font-size:.92rem;margin-top:.25rem}.math-visual-text summary{cursor:pointer}.cadus-visual-axis{stroke:var(--text);stroke-width:2}.cadus-visual-tick,.cadus-visual-grid{stroke:var(--border);stroke-width:1}.cadus-visual-interval,.cadus-visual-segment{stroke:var(--accent);stroke-width:3;fill:none}.cadus-visual-point{fill:var(--accent)}.cadus-visual-point-open{fill:var(--bg);stroke:var(--accent);stroke-width:2}.cadus-visual-label{fill:var(--text);font-size:12px}.cadus-visual-part{fill:var(--surface-2);stroke:var(--text);stroke-width:1}.cadus-visual-part-shaded{fill:var(--accent);stroke:var(--text);stroke-width:1}.cadus-visual-shape{fill:var(--accent-weak);stroke:var(--accent);stroke-width:2}.cadus-visual-right-angle{fill:none;stroke:var(--text);stroke-width:1.5}
