.exam{--ex-head: #1d3557;--ex-head-text: #fff;--ex-bg: #e9edf2;--ex-panel: #ffffff;--ex-paper: #ffffff;--ex-ink: #111827;--ex-muted: #5b6472;--ex-line: #c9d1dc;--ex-grid: #cfd8e3;--ex-accent: #1f5fad;--ex-btn: #f4f6f9;--ex-btn-on: #1f5fad;--ex-btn-on-text: #fff;--ex-danger: #b42318;position:fixed;top:0;right:0;bottom:0;left:0;z-index:50;display:flex;flex-direction:column;background:var(--ex-bg);color:var(--ex-ink);font-family:Arial,Segoe UI,sans-serif;font-size:13px}.exam.ex-theme-green{--ex-bg: #e3efe3;--ex-panel: #f1f8f1;--ex-paper: #f6fbf6;--ex-head: #24543a}.exam.ex-theme-blue{--ex-bg: #dfe9f5;--ex-panel: #eef4fb;--ex-paper: #f4f8fd}.exam.ex-theme-purple{--ex-bg: #ebe4f3;--ex-panel: #f5f0fa;--ex-paper: #f9f6fc;--ex-head: #3f2a63}.exam.ex-theme-orange{--ex-bg: #f6e7d8;--ex-panel: #fcf3ea;--ex-paper: #fdf7f1;--ex-head: #7a3d0c}.exam.ex-theme-yellow{--ex-bg: #f6f0c9;--ex-panel: #fdf9e1;--ex-paper: #fffbe8;--ex-head: #5c5212}.exam.ex-theme-warmgrey{--ex-bg: #e6e1db;--ex-panel: #f3f0ec;--ex-paper: #f8f6f3;--ex-head: #4a423a}.exam.ex-theme-coolgrey{--ex-bg: #dde1e6;--ex-panel: #eef0f3;--ex-paper: #f5f6f8;--ex-head: #3a4350}.exam.ex-theme-reversed{--ex-bg: #111;--ex-panel: #1c1c1c;--ex-paper: #141414;--ex-ink: #f2f2f2;--ex-muted: #b5b5b5;--ex-line: #3a3a3a;--ex-grid: #333;--ex-btn: #262626;--ex-head: #000;--ex-accent: #6aa7ff;--ex-btn-on: #6aa7ff;--ex-btn-on-text: #000}.ex-head{display:flex;align-items:center;gap:18px;background:var(--ex-head);color:var(--ex-head-text);padding:9px 16px}.ex-title{font-weight:700;font-size:14px;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ex-who{font-size:12px;opacity:.85}.ex-timer{font:700 18px/1 Consolas,Menlo,monospace;background:#ffffff1f;padding:6px 12px;border-radius:6px;min-width:120px;text-align:center}.ex-timer.low{background:#b42318}.ex-timer.reading{background:#8a6a28;font-size:14px}.ex-dim{font:12px Arial;opacity:.8}.ex-bar{display:flex;flex-wrap:wrap;align-items:center;gap:6px 16px;padding:6px 12px;background:var(--ex-panel);border-bottom:1px solid var(--ex-line)}.ex-group{display:flex;align-items:center;gap:4px}.ex-group.right{margin-left:auto}.ex-label{font-size:12px;color:var(--ex-muted);padding:0 4px}.ex-btn{display:inline-flex;align-items:center;gap:5px;border:1px solid var(--ex-line);background:var(--ex-btn);color:var(--ex-ink);border-radius:4px;padding:5px 9px;font:12px Arial,sans-serif;cursor:pointer;white-space:nowrap}.ex-btn:hover:not(:disabled){border-color:var(--ex-accent)}.ex-btn:disabled{opacity:.45;cursor:not-allowed}.ex-btn.on{background:var(--ex-btn-on);color:var(--ex-btn-on-text);border-color:var(--ex-btn-on)}.ex-btn.lg{padding:10px 20px;font-size:14px}.ex-btn.danger{color:var(--ex-danger)}.ex-btn.end{background:var(--ex-danger);color:#fff;border-color:var(--ex-danger);font-weight:700}.ex-btn.flag{background:#fde68a;color:#111;border-color:#d4a514}.ex-btn .ico{font-size:13px}.ex-select{width:auto;padding:4px 6px;font:12px Arial;background:var(--ex-btn);color:var(--ex-ink);border:1px solid var(--ex-line);border-radius:4px}.sw{width:12px;height:12px;border-radius:2px;display:inline-block;border:1px solid rgba(0,0,0,.25)}.sw.y{background:#fde047}.sw.b{background:#93c5fd}.ex-save{font-size:11px;color:var(--ex-muted)}.ex-save.bad{color:var(--ex-danger);font-weight:700}.ex-sep{width:1px;height:20px;background:var(--ex-line);margin:0 4px}.ex-check{display:inline-flex;align-items:center;gap:4px;font-size:12px;color:var(--ex-muted)}.ex-check input{width:auto}.exam .spacer{flex:1}.ex-fs{background:#fde68a;color:#111;padding:6px 14px;display:flex;align-items:center;gap:10px;font-size:13px}.ex-body{flex:1;display:flex;min-height:0}.ex-left{background:var(--ex-paper);overflow:auto;padding:16px 20px;border-right:1px solid var(--ex-line);position:relative}.ex-watermark{position:absolute;top:0;right:0;bottom:0;left:0;overflow:hidden;pointer-events:none;display:flex;flex-wrap:wrap;gap:70px 90px;padding:40px;transform:rotate(-24deg) scale(1.4);opacity:.055;font:600 14px Arial;color:var(--ex-ink);-webkit-user-select:none;user-select:none;z-index:0}.ex-left>*:not(.ex-watermark){position:relative;z-index:1}.ex-divider{width:7px;cursor:col-resize;background:var(--ex-bg);border-left:1px solid var(--ex-line);border-right:1px solid var(--ex-line)}.ex-divider:hover{background:var(--ex-accent)}.ex-right{flex:1;min-width:0;display:flex;flex-direction:column;background:var(--ex-panel)}.ex-qhead{display:flex;align-items:baseline;gap:10px;border-bottom:2px solid var(--ex-head);padding-bottom:6px;margin-bottom:4px}.ex-qn{font-weight:700;font-size:1.25em}.ex-qt{flex:1;color:var(--ex-muted)}.ex-qm{font-weight:700}.ex-qchap{font-size:.9em;color:var(--ex-muted);margin-bottom:10px}.ex-qtext{white-space:pre;overflow-x:auto;font:.92em/1.55 Consolas,Courier New,monospace;color:var(--ex-ink);margin:0;-webkit-user-select:text;user-select:text}.ex-qtext.hl-mode-yellow,.ex-qtext.hl-mode-blue{cursor:text}.ex-qtext.hl-mode-erase mark{cursor:pointer;outline:1px dashed #b42318}mark.hl-yellow{background:#fde047;color:#111}mark.hl-blue{background:#93c5fd;color:#111}.ex-notes{margin-top:14px;border-top:1px dashed var(--ex-line);padding-top:10px}.ex-notes textarea{width:100%;min-height:110px;background:#fffbe0;color:#111;border:1px solid #e5d27a;border-radius:4px;padding:8px;font:13px Arial}.ex-tabs{display:flex;gap:2px;padding:8px 10px 0;border-bottom:1px solid var(--ex-line);background:var(--ex-panel)}.ex-tab{border:1px solid var(--ex-line);border-bottom:0;background:var(--ex-btn);color:var(--ex-ink);padding:7px 14px;border-radius:5px 5px 0 0;font:12px Arial;cursor:pointer;display:inline-flex;align-items:center;gap:6px}.ex-tab.on{background:var(--ex-paper);font-weight:700;box-shadow:inset 0 3px 0 var(--ex-accent)}.ex-tab .dot{width:7px;height:7px;border-radius:50%;background:#16a34a}.ex-answer{flex:1;min-height:0;overflow:auto;padding:10px;position:relative;background:var(--ex-paper)}.ex-answer.locked>*:not(.ex-lock){opacity:.55;pointer-events:none}.ex-lock{position:sticky;top:0;z-index:5;background:#8a6a28;color:#fff;padding:8px 12px;border-radius:4px;margin-bottom:8px;font-weight:700}.wp{display:flex;flex-direction:column;height:100%;min-height:420px;border:1px solid var(--ex-line);border-radius:4px;background:var(--ex-paper)}.wp-tools,.ss-tools,.ex-toolbar{display:flex;align-items:center;gap:3px;padding:5px;border-bottom:1px solid var(--ex-line);background:var(--ex-panel);flex-wrap:wrap}.wp-count{font-size:11px;color:var(--ex-muted)}.wp-count.over{color:var(--ex-danger);font-weight:700}.wp-area{flex:1;overflow:auto}.wp-area .ProseMirror{min-height:380px;padding:14px 16px;outline:none;font:14px/1.6 Arial,sans-serif;color:var(--ex-ink)}.wp-area .ProseMirror p{margin:0 0 8px}.wp-area .ProseMirror table{border-collapse:collapse;margin:8px 0;table-layout:fixed;width:100%}.wp-area .ProseMirror td,.wp-area .ProseMirror th{border:1px solid #9aa4b2;padding:4px 6px;vertical-align:top;position:relative;min-width:40px}.wp-area .ProseMirror th{background:#1f5fad14;font-weight:700}.wp-area .ProseMirror .selectedCell{background:#1f5fad26}.wp-area .ProseMirror .column-resize-handle{position:absolute;right:-2px;top:0;bottom:0;width:4px;background:var(--ex-accent)}.ss{display:flex;flex-direction:column;height:100%;min-height:420px;border:1px solid var(--ex-line);border-radius:4px;background:var(--ex-paper)}.ss-fbar{display:flex;align-items:center;gap:6px;padding:4px 6px;border-bottom:1px solid var(--ex-line)}.ss-name{font:700 12px Consolas,monospace;min-width:48px;text-align:center;border:1px solid var(--ex-line);padding:3px;border-radius:3px;background:var(--ex-btn)}.ss-fx{font-style:italic;color:var(--ex-muted)}.ss-fbar input{flex:1;font:13px Consolas,monospace;padding:4px 6px;border:1px solid var(--ex-line);border-radius:3px;background:var(--ex-paper);color:var(--ex-ink);width:auto}.ss-grid{flex:1;overflow:auto;outline:none}.ss-grid table{border-collapse:collapse;table-layout:fixed;font:13px Calibri,Arial,sans-serif}.ss-grid th{position:sticky;top:0;background:#eef1f5;color:#333;font-weight:400;font-size:12px;border:1px solid #c8ced6;height:22px;z-index:2;-webkit-user-select:none;user-select:none}.ex-theme-reversed .ss-grid th{background:#2a2a2a;color:#ddd;border-color:#444}.ss-grid tbody th{position:sticky;left:0;width:42px;z-index:1}.ss-grid th.hl{background:#d6e4f5}.ss-grid th.ss-corner{left:0;z-index:3;width:42px}.ss-resize{position:absolute;right:-3px;top:0;bottom:0;width:6px;cursor:col-resize}.ss-grid thead th{position:sticky}.ss-grid td{border:1px solid #dde2e8;height:22px;padding:0 5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;cursor:cell;color:var(--ex-ink);font-variant-numeric:tabular-nums}.ex-theme-reversed .ss-grid td{border-color:#333}.ss-grid td.sel{outline:2px solid #1f7a4d;outline-offset:-2px}.ss-grid td.rng{background:#1f7a4d1f}.ss-edit{width:100%;height:20px;border:0;outline:none;padding:0;font:inherit;background:transparent;color:var(--ex-ink)}.graph{border:1px solid var(--ex-line);border-radius:4px;background:var(--ex-paper)}.ex-toolbar.wrap{flex-wrap:wrap}.graph-fields{display:flex;gap:6px;padding:6px;border-bottom:1px solid var(--ex-line)}.graph-fields input{flex:1;padding:5px 8px;font:12px Arial;border:1px solid var(--ex-line);border-radius:3px;background:var(--ex-paper);color:var(--ex-ink)}.graph-canvas{position:relative;padding:6px}.graph-canvas svg{width:100%;max-height:62vh;display:block;-webkit-user-select:none;user-select:none}.ex-pop{position:absolute;transform:translate(-10%,-120%);background:var(--ex-panel);border:1px solid var(--ex-line);border-radius:4px;padding:6px;display:flex;gap:4px;box-shadow:0 6px 18px #0000002e;z-index:4;color:var(--ex-ink)}.ex-pop.center{left:50%;top:40%;transform:translate(-50%,-50%);flex-direction:column;max-width:320px}.ex-pop input{width:180px;padding:4px 6px;font:12px Arial;border:1px solid var(--ex-line);border-radius:3px}.ex-swatch{width:20px;height:20px;border-radius:3px;border:2px solid transparent;cursor:pointer;padding:0}.ex-swatch.on{border-color:var(--ex-accent);box-shadow:0 0 0 1px #fff inset}.ex-foot{display:flex;align-items:center;gap:8px;padding:7px 12px;background:var(--ex-panel);border-top:1px solid var(--ex-line)}.ex-overview{position:absolute;left:12px;bottom:50px;width:min(620px,92vw);max-height:60vh;overflow:auto;background:var(--ex-panel);border:1px solid var(--ex-line);border-radius:6px;box-shadow:0 10px 30px #0003;z-index:60}.ex-ov-head{display:flex;justify-content:space-between;padding:8px 12px;border-bottom:1px solid var(--ex-line)}.ex-ov-row{display:grid;grid-template-columns:50px 1fr 70px 100px 20px;gap:8px;align-items:center;width:100%;text-align:left;border:0;border-bottom:1px solid var(--ex-line);background:transparent;color:var(--ex-ink);padding:8px 12px;cursor:pointer;font:12px Arial}.ex-ov-row:hover,.ex-ov-row.on{background:#1f5fad1a}.ex-ov-row .ok{color:#15803d;font-weight:700}.ex-ov-row .no{color:var(--ex-muted)}.ex-ov-row .flagt{color:#d4a514}.ex-x{border:0;background:transparent;cursor:pointer;font-size:14px;color:inherit}.ex-float{position:fixed;z-index:70;background:var(--ex-panel);border:1px solid var(--ex-line);border-radius:6px;box-shadow:0 10px 30px #00000040;color:var(--ex-ink)}.ex-float.clear{background:#ffffff59;-webkit-backdrop-filter:blur(1px);backdrop-filter:blur(1px)}.ex-float-head{display:flex;justify-content:space-between;align-items:center;padding:6px 10px;background:var(--ex-head);color:#fff;cursor:move;border-radius:6px 6px 0 0;font-weight:700;font-size:12px;-webkit-user-select:none;user-select:none}.ex-float-body{padding:8px}.calc-disp{background:#e8f0e0;color:#111;font:700 22px Consolas,monospace;text-align:right;padding:8px 10px;border-radius:4px;margin-bottom:8px;position:relative;min-height:46px;overflow:hidden}.calc-m,.calc-op{position:absolute;left:8px;font-size:10px;color:#555;font-weight:400}.calc-m{top:4px}.calc-op{bottom:4px}.calc-keys{display:grid;grid-template-columns:repeat(4,1fr);gap:5px}.calc-k{padding:9px 0;border:1px solid var(--ex-line);background:var(--ex-btn);color:var(--ex-ink);border-radius:4px;font:14px Arial;cursor:pointer}.calc-k.op{background:#e3e9f2;color:#111}.calc-k.eq{grid-column:span 4;background:var(--ex-btn-on);color:var(--ex-btn-on-text);font-weight:700}.ex-notepad{width:100%;min-height:220px;font:13px Arial;padding:8px;border:1px solid var(--ex-line);border-radius:4px;background:var(--ex-paper);color:var(--ex-ink)}.ex-modal-back{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;z-index:100;display:flex;align-items:center;justify-content:center}.ex-modal-back.warn{background:#5000008c}.ex-modal{background:var(--ex-panel);color:var(--ex-ink);border-radius:8px;padding:22px;width:min(480px,92vw);box-shadow:0 20px 50px #0000004d}.ex-modal h3{font:700 18px Arial;margin:0 0 10px}.ex-badtext{color:var(--ex-danger);font-weight:700}.ex-toast{position:fixed;bottom:60px;left:50%;transform:translate(-50%);background:#111;color:#fff;padding:10px 16px;border-radius:6px;z-index:200;font-size:13px;max-width:90vw}.ex-center{margin:auto;max-width:760px;padding:30px;text-align:center}.ex-center h2{font:700 22px Arial;margin:0 0 12px}.ex-instr{text-align:left;background:var(--ex-panel);border:1px solid var(--ex-line);border-radius:8px;margin-top:30px;overflow:auto;max-height:calc(100vh - 100px)}.ex-eyebrow{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--ex-muted);margin-bottom:6px}.ex-info{border-collapse:collapse;margin:10px 0 14px}.ex-info td{padding:5px 16px 5px 0;border-bottom:1px solid var(--ex-line)}.ex-info td:first-child{color:var(--ex-muted)}.ex-rules{line-height:1.7;padding-left:20px}.ex-note{background:#fff7d6;color:#3d3200;border:1px solid #e5d27a;border-radius:4px;padding:8px 12px;margin-bottom:8px}.exam .row{display:flex;align-items:center;gap:6px;flex-wrap:wrap}:root{--font-display: "Fraunces", Georgia, serif;--font-ui: "Inter", system-ui, sans-serif;--r-sm: 8px;--r-md: 12px;--r-lg: 18px;--r-pill: 999px;--ease: cubic-bezier(.22,.61,.36,1);--dur: .32s}[data-theme=crimson]{--bg: #0E0C0B;--bg-glow: rgba(184,36,35,.2);--surface: #191512;--surface-2: #221C17;--surface-3: #2C241C;--line: rgba(199,168,107,.16);--line-strong: rgba(199,168,107,.34);--text: #F3EEE6;--muted: #A89C8A;--faint: #6E6559;--gold: #C7A86B;--gold-bright: #EAD6A5;--gold-deep: #6C5029;--crimson: #B82423;--crimson-deep: #700909;--on-gold: #17110A;--on-crimson: #FFF2F0;--ok: #6FBF8E;--warn: #E0A340;--shadow: 0 18px 44px rgba(0,0,0,.55);--grain-op: .045}[data-theme=light]{--bg: #F6F4F1;--bg-glow: rgba(154,123,52,.1);--surface: #FFFFFF;--surface-2: #FBFAF8;--surface-3: #F2EFEA;--line: #E5E0D7;--line-strong: #CFC6B5;--text: #1A1714;--muted: #6B6257;--faint: #9A9186;--gold: #9A7B34;--gold-bright: #C7A86B;--gold-deep: #6C5029;--crimson: #A81D1C;--crimson-deep: #700909;--on-gold: #FFFFFF;--on-crimson: #FFFFFF;--ok: #1F7A4D;--warn: #9A6206;--shadow: 0 14px 34px rgba(26,23,20,.1);--grain-op: .022}[data-theme=cream]{--bg: #F1E8D7;--bg-glow: rgba(138,106,40,.14);--surface: #FBF6EC;--surface-2: #F6EFE1;--surface-3: #EFE4CF;--line: #E0D4BC;--line-strong: #C9B694;--text: #2A2016;--muted: #6E6050;--faint: #9C8B75;--gold: #8A6A28;--gold-bright: #B8954E;--gold-deep: #5A4420;--crimson: #96201D;--crimson-deep: #6B0E0C;--on-gold: #FFF8EA;--on-crimson: #FFF8EA;--ok: #2A6B45;--warn: #8A5A0E;--shadow: 0 14px 30px rgba(90,68,32,.13);--grain-op: .05}[data-theme=contrast]{--bg: #000000;--bg-glow: rgba(255,210,74,.1);--surface: #000000;--surface-2: #0B0B0B;--surface-3: #161616;--line: #FFFFFF;--line-strong: #FFFFFF;--text: #FFFFFF;--muted: #E6E6E6;--faint: #C2C2C2;--gold: #FFD24A;--gold-bright: #FFE89A;--gold-deep: #A97E00;--crimson: #FF6B60;--crimson-deep: #C22B22;--on-gold: #000000;--on-crimson: #000000;--ok: #58E08C;--warn: #FFD24A;--shadow: none;--grain-op: 0}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-ui);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}body:before{content:"";position:fixed;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:0;background:radial-gradient(900px 420px at 15% -10%,var(--bg-glow),transparent 70%)}body:after{content:"";position:fixed;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:0;opacity:var(--grain-op);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}#root{position:relative;z-index:1}a{color:var(--gold);text-decoration:none}a:hover{color:var(--gold-bright)}h1,h2,h3{font-family:var(--font-display);font-weight:600;letter-spacing:-.015em;margin:0}h1{font-size:30px;line-height:1.15}h2{font-size:21px}h3{font-size:16px}.num,table td.n,.tabular{font-variant-numeric:tabular-nums}@media (prefers-reduced-motion: reduce){*{transition:none!important;animation:none!important}}.wordmark{display:inline-flex;align-items:baseline;gap:8px;color:var(--text)}.wordmark .arm{font-family:var(--font-display);font-weight:600;font-size:26px;color:var(--gold);letter-spacing:-.02em;background:linear-gradient(180deg,var(--gold-bright),var(--gold) 55%,var(--gold-deep));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.wordmark .bar{width:3px;height:22px;background:var(--crimson);align-self:center;border-radius:2px}.wordmark .bs{font-size:12px;letter-spacing:.04em;color:var(--muted)}.eyebrow{font-size:10px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--gold)}.tagline{font-size:9px;letter-spacing:.32em;color:var(--gold);text-transform:uppercase}.shell{display:grid;grid-template-columns:248px 1fr;min-height:100vh}.side{border-right:1px solid var(--line);padding:22px 16px;position:sticky;top:0;height:100vh;overflow-y:auto;background:color-mix(in srgb,var(--surface) 70%,transparent);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.side nav{display:flex;flex-direction:column;gap:2px;margin-top:26px}.side .navgroup{margin:16px 10px 6px}.side a.nav{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:var(--r-sm);color:var(--muted);font-weight:500;transition:background var(--dur) var(--ease),color var(--dur) var(--ease)}.side a.nav:hover{background:var(--surface-2);color:var(--text)}.side a.nav.active{background:var(--surface-3);color:var(--text);box-shadow:inset 2px 0 0 var(--gold)}.side a.nav .count{margin-left:auto;font-size:11px;background:var(--crimson);color:var(--on-crimson);border-radius:var(--r-pill);padding:0 7px}.main{padding:28px 36px 60px;max-width:1280px;width:100%}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px}.topbar .who{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:13px}.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px;flex-wrap:wrap}.page-head p{color:var(--muted);margin:6px 0 0;max-width:720px}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow);padding:20px}.card.flat{box-shadow:none}.card h3{margin-bottom:10px}.grid{display:grid;gap:16px}.g2{grid-template-columns:repeat(2,minmax(0,1fr))}.g3{grid-template-columns:repeat(3,minmax(0,1fr))}.g4{grid-template-columns:repeat(4,minmax(0,1fr))}.stat{padding:18px 20px}.stat .v{font-family:var(--font-display);font-size:30px;font-weight:600;font-variant-numeric:tabular-nums;line-height:1.1;margin-top:6px}.stat .s{color:var(--muted);font-size:12px;margin-top:4px}.row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.row.between{justify-content:space-between}.stack{display:flex;flex-direction:column;gap:12px}.muted{color:var(--muted)}.faint{color:var(--faint)}.small{font-size:12px}.hr{height:1px;background:var(--line);margin:16px 0}.spacer{flex:1}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--line-strong);background:var(--surface-2);color:var(--text);padding:9px 16px;border-radius:var(--r-pill);font:600 13px var(--font-ui);cursor:pointer;transition:all var(--dur) var(--ease);white-space:nowrap}.btn:hover{border-color:var(--gold)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn.primary{background:var(--gold);color:var(--on-gold);border-color:var(--gold)}.btn.primary:hover{background:var(--gold-bright)}.btn.danger{background:var(--crimson);color:var(--on-crimson);border-color:var(--crimson)}.btn.ghost{background:transparent;border-color:transparent;color:var(--muted)}.btn.ghost:hover{color:var(--text);background:var(--surface-2)}.btn.sm{padding:5px 11px;font-size:12px}.btn.lg{padding:12px 22px;font-size:14px}input,select,textarea{font:14px var(--font-ui);color:var(--text);background:var(--surface-2);border:1px solid var(--line-strong);border-radius:var(--r-sm);padding:9px 12px;width:100%}input:focus,select:focus,textarea:focus{outline:2px solid color-mix(in srgb,var(--gold) 45%,transparent);border-color:var(--gold)}textarea{resize:vertical;min-height:90px;font-family:var(--font-ui)}textarea.mono{font:12px/1.45 ui-monospace,Menlo,Consolas,monospace}label.field{display:flex;flex-direction:column;gap:6px;font-size:12px;color:var(--muted);font-weight:500}.check{display:inline-flex;align-items:center;gap:8px;cursor:pointer;color:var(--text);font-size:13px}.check input{width:auto}.seg{display:inline-flex;background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-pill);padding:3px;gap:2px}.seg button{border:0;background:transparent;color:var(--muted);padding:6px 14px;border-radius:var(--r-pill);font:600 12px var(--font-ui);cursor:pointer}.seg button.on{background:var(--gold);color:var(--on-gold)}.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-md)}table.t{width:100%;border-collapse:collapse;font-size:13px}table.t th{text-align:left;font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);font-weight:600;padding:10px 12px;background:var(--surface-2);border-bottom:1px solid var(--line);white-space:nowrap}table.t td{padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}table.t tr:last-child td{border-bottom:0}table.t tr.click{cursor:pointer}table.t tr.click:hover td{background:var(--surface-2)}table.t td.n,table.t th.n{text-align:right;font-variant-numeric:tabular-nums}table.t tr.bad td{background:color-mix(in srgb,var(--crimson) 10%,transparent)}table.t tr.total td{font-weight:700;background:var(--surface-2)}.badge{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:600;padding:2px 9px;border-radius:var(--r-pill);border:1px solid var(--line-strong);color:var(--muted);white-space:nowrap}.badge:before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}.badge.ok{color:var(--ok);border-color:color-mix(in srgb,var(--ok) 45%,transparent)}.badge.warn{color:var(--warn);border-color:color-mix(in srgb,var(--warn) 45%,transparent)}.badge.bad{color:var(--crimson);border-color:color-mix(in srgb,var(--crimson) 45%,transparent)}.badge.gold{color:var(--gold);border-color:color-mix(in srgb,var(--gold) 45%,transparent)}.badge.plain:before{display:none}.notice{border:1px solid var(--line-strong);background:var(--surface-2);border-radius:var(--r-md);padding:12px 14px;font-size:13px}.notice.warn{border-color:color-mix(in srgb,var(--warn) 50%,transparent)}.notice.bad{border-color:color-mix(in srgb,var(--crimson) 55%,transparent)}.notice.ok{border-color:color-mix(in srgb,var(--ok) 50%,transparent)}.toast{position:fixed;right:20px;bottom:20px;z-index:9999;background:var(--surface-3);border:1px solid var(--line-strong);color:var(--text);border-radius:var(--r-md);padding:12px 16px;box-shadow:var(--shadow);max-width:420px;animation:rise var(--dur) var(--ease)}.toast.bad{border-color:var(--crimson)}@keyframes rise{0%{transform:translateY(10px);opacity:0}to{transform:none;opacity:1}}.modal-back{position:fixed;top:0;right:0;bottom:0;left:0;background:#0000008c;z-index:1000;display:flex;align-items:flex-start;justify-content:center;padding:50px 20px;overflow-y:auto}.modal{background:var(--surface);border:1px solid var(--line-strong);border-radius:var(--r-lg);box-shadow:var(--shadow);width:min(980px,100%);padding:24px}.modal.narrow{width:min(520px,100%)}.auth{min-height:100vh;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(380px,1fr)}.auth .hero{padding:48px 56px;display:flex;flex-direction:column;gap:28px;border-right:1px solid var(--line)}.auth .panel{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;padding:40px;position:relative;overflow:hidden;isolation:isolate}.auth .panel:before{content:"";position:absolute;width:640px;height:640px;border-radius:50%;z-index:-1;pointer-events:none;filter:blur(40px);background:radial-gradient(circle,color-mix(in srgb,var(--gold) 10%,transparent),transparent 62%);animation:lp-drift 18s ease-in-out infinite alternate}.lp-secure{font-size:11px;color:var(--faint);letter-spacing:.04em;display:flex;align-items:center;gap:8px;opacity:0;animation:lp-in .8s var(--ease) .6s forwards}.lp-secure i{width:6px;height:6px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 3px color-mix(in srgb,var(--ok) 20%,transparent)}.auth .box{width:min(420px,100%)}.lp-hero{position:relative;overflow:hidden;isolation:isolate;min-height:100vh;box-sizing:border-box;background:linear-gradient(160deg,var(--surface) 0%,var(--bg) 70%)}.lp-aura{position:absolute;border-radius:50%;filter:blur(80px);z-index:-1;pointer-events:none;animation:lp-drift 16s ease-in-out infinite alternate}.lp-aura.a{width:620px;height:620px;left:-180px;top:-220px;background:radial-gradient(circle,color-mix(in srgb,var(--gold) 26%,transparent),transparent 65%)}.lp-aura.b{width:560px;height:560px;right:-220px;bottom:-200px;background:radial-gradient(circle,color-mix(in srgb,var(--crimson) 24%,transparent),transparent 65%);animation-duration:19s;animation-direction:alternate-reverse}.lp-grid{position:absolute;top:0;right:0;bottom:0;left:0;z-index:-1;pointer-events:none;opacity:.55;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:56px 56px;-webkit-mask-image:radial-gradient(ellipse at 30% 30%,#000 0%,transparent 70%);mask-image:radial-gradient(ellipse at 30% 30%,#000 0%,transparent 70%)}.lp-wordmark .arm{font-size:40px}.lp-wordmark .bar{height:32px;width:4px}.lp-wordmark .bs{font-size:14px}.lp-body{max-width:720px}.lp-h1{font-size:clamp(32px,3.4vw,48px);line-height:1.08;margin:14px 0 26px}.lp-h1 em{font-style:normal;background:linear-gradient(100deg,var(--gold-deep),var(--gold) 30%,var(--gold-bright) 50%,var(--gold) 70%,var(--gold-deep));background-size:250% 100%;-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;animation:lp-shine 6s ease-in-out 1.5s infinite}.lp-feats{display:grid;grid-template-columns:1fr 1fr;gap:14px 22px}.lp-feat{display:flex;gap:12px;align-items:flex-start}.lp-feat b{display:block;font-weight:600;font-size:13.5px;color:var(--text);margin-bottom:2px}.lp-feat span{font-size:12.5px;color:var(--muted);line-height:1.5}.lp-num{font-family:var(--font-display);font-weight:600;font-size:13px;color:var(--gold);border:1px solid var(--line-strong);border-radius:var(--r-sm);min-width:30px;height:30px;display:inline-grid;place-items:center;font-variant-numeric:tabular-nums;background:color-mix(in srgb,var(--surface-2) 70%,transparent)}.lp-card{position:relative;width:min(360px,100%);background:color-mix(in srgb,var(--surface) 88%,transparent);border:1px solid var(--line-strong);border-radius:var(--r-lg);padding:16px;box-shadow:var(--shadow);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);opacity:0;animation:lp-card-in 1s var(--ease) .7s forwards,lp-float 7s ease-in-out 1.7s infinite}.lp-card-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.lp-card-title{font-family:var(--font-display);font-weight:600;font-size:16px;margin-top:3px}.lp-ring-arc{stroke-dashoffset:var(--c);animation:lp-ring 1.4s var(--ease) 1s forwards}.lp-ring-txt{font-family:var(--font-display);font-weight:600;font-size:17px;fill:var(--text)}.lp-row{display:grid;grid-template-columns:24px 1fr auto 38px;gap:8px;align-items:center;padding:8px 0;border-top:1px solid var(--line);font-size:12px;opacity:0;animation:lp-in .6s var(--ease) forwards}.lp-step{color:var(--gold);font-weight:600}.lp-desc{color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.lp-m{text-align:right;font-variant-numeric:tabular-nums;font-weight:600}.lp-pill{font-size:10.5px;font-weight:600;padding:2px 8px;border-radius:var(--r-pill);white-space:nowrap}.lp-pill.ok{color:var(--ok);background:color-mix(in srgb,var(--ok) 14%,transparent)}.lp-pill.bad{color:var(--crimson);background:color-mix(in srgb,var(--crimson) 14%,transparent)}.lp-note{margin-top:8px;font-size:11px;color:var(--muted);border-top:1px dashed var(--line-strong);padding-top:8px}.lp-papers{margin-top:auto;display:flex;flex-wrap:wrap;gap:8px}.lp-papers span{font-size:11px;font-weight:600;letter-spacing:.08em;color:var(--muted);border:1px solid var(--line);border-radius:var(--r-pill);padding:5px 12px;background:color-mix(in srgb,var(--surface-2) 60%,transparent)}.lp-in{opacity:0;animation:lp-in .8s var(--ease) forwards}.lp-form{position:relative;overflow:hidden;border-color:var(--line-strong);box-shadow:var(--shadow);opacity:0;animation:lp-in .8s var(--ease) .25s forwards}.lp-form:before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:linear-gradient(90deg,transparent,var(--gold),var(--crimson),var(--gold),transparent);background-size:200% 100%;animation:lp-line 5s linear infinite}.lp-form input:focus,.lp-form select:focus{box-shadow:0 0 0 3px color-mix(in srgb,var(--gold) 22%,transparent)}.lp-mobile-brand{display:none;margin-bottom:18px;padding-bottom:16px;border-bottom:1px solid var(--line)}@keyframes lp-in{0%{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}@keyframes lp-card-in{0%{opacity:0;transform:translateY(24px) rotate(1.5deg)}to{opacity:1;transform:rotate(-1deg)}}@keyframes lp-float{0%,to{transform:translateY(0) rotate(-1deg)}50%{transform:translateY(-8px) rotate(-.4deg)}}@keyframes lp-ring{to{stroke-dashoffset:0}}@keyframes lp-shine{0%,60%{background-position:100% 0}90%,to{background-position:0 0}}@keyframes lp-drift{0%{transform:translate(0) scale(1)}to{transform:translate(60px,40px) scale(1.12)}}@keyframes lp-line{to{background-position:-200% 0}}@media (max-height: 860px){.lp-card{display:none}}@media (max-width: 1180px){.lp-feats{grid-template-columns:1fr}}.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px}.tile{text-align:left;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:18px;cursor:pointer;color:var(--text);font:inherit;transition:all var(--dur) var(--ease)}.tile:hover{border-color:var(--gold);transform:translateY(-1px)}.tile.on{border-color:var(--gold);box-shadow:inset 0 0 0 1px var(--gold);background:var(--surface-2)}.tile .k{font-family:var(--font-display);font-size:22px;color:var(--gold)}.tile .d{color:var(--muted);font-size:12px;margin-top:4px}.list-choose{display:flex;flex-direction:column;gap:6px;max-height:460px;overflow-y:auto;padding-right:4px}.list-choose button{text-align:left;background:var(--surface-2);border:1px solid var(--line);color:var(--text);border-radius:var(--r-md);padding:10px 12px;cursor:pointer;font:13px var(--font-ui);display:flex;gap:10px;align-items:center}.list-choose button:hover{border-color:var(--gold)}.list-choose button.on{border-color:var(--gold);background:var(--surface-3)}.bar{height:8px;background:var(--surface-3);border-radius:var(--r-pill);overflow:hidden}.bar>i{display:block;height:100%;background:var(--gold);border-radius:var(--r-pill)}.bar.bad>i{background:var(--crimson)}.bar.ok>i{background:var(--ok)}.qhead{display:flex;align-items:baseline;justify-content:space-between;gap:12px;flex-wrap:wrap}.score-big{font-family:var(--font-display);font-size:46px;font-weight:600;line-height:1;font-variant-numeric:tabular-nums}.score-big small{font-size:20px;color:var(--muted)}.note-box{border-left:3px solid var(--gold);background:var(--surface-2);padding:12px 14px;border-radius:0 var(--r-md) var(--r-md) 0}.status-correct,.status-own_figure{color:var(--ok);font-weight:600}.status-partial{color:var(--warn);font-weight:600}.status-mistake{color:var(--crimson);font-weight:600}.status-missing{color:var(--faint);font-weight:600}pre.qtext{white-space:pre-wrap;font:12.5px/1.55 ui-monospace,Menlo,Consolas,monospace;margin:0}@media (max-width: 980px){.shell{grid-template-columns:1fr}.side{position:static;height:auto;border-right:0;border-bottom:1px solid var(--line)}.side nav{flex-direction:row;flex-wrap:wrap;margin-top:12px}.side .navgroup{display:none}.main{padding:20px 16px 50px}.g2,.g3,.g4,.auth{grid-template-columns:1fr}.auth .hero{display:none}.auth .panel{padding:24px 16px;min-height:100vh;box-sizing:border-box}.lp-mobile-brand{display:block}}.pill{display:inline-flex;align-items:center;font-size:11px;font-weight:600;padding:3px 10px;border-radius:var(--r-pill);white-space:nowrap;border:1px solid transparent}.pill-correct,.pill-own_figure{color:var(--ok);background:color-mix(in srgb,var(--ok) 13%,transparent);border-color:color-mix(in srgb,var(--ok) 30%,transparent)}.pill-partial{color:var(--warn);background:color-mix(in srgb,var(--warn) 13%,transparent);border-color:color-mix(in srgb,var(--warn) 30%,transparent)}.pill-mistake{color:var(--crimson);background:color-mix(in srgb,var(--crimson) 12%,transparent);border-color:color-mix(in srgb,var(--crimson) 32%,transparent)}.pill-missing{color:var(--muted);background:var(--surface-3);border-color:var(--line)}.fb-hero{display:grid;grid-template-columns:1fr 230px;gap:0;padding:0;overflow:hidden}.fb-hero-details{display:grid;grid-template-columns:repeat(3,1fr);gap:18px 24px;padding:24px;align-content:center}.fb-hero-details span{display:block;font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:3px}.fb-hero-details b{font-weight:600;font-variant-numeric:tabular-nums}.fb-hero-score{border-left:1px solid var(--line);background:var(--surface-2);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;padding:18px}.fb-hero-marks{color:var(--muted);font-variant-numeric:tabular-nums}.fb-hero-marks span{font-family:var(--font-display);font-size:26px;color:var(--text);font-weight:600}.fb-section{margin-top:20px}.fb-section-head{display:flex;align-items:center;gap:10px;font-weight:600;margin-bottom:10px}.fb-num{width:22px;height:22px;border-radius:50%;background:var(--gold);color:var(--on-gold);display:inline-flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;flex:none}.fb-qband{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;padding:16px 18px;margin:-20px -20px 0;border-bottom:2px solid var(--gold);background:color-mix(in srgb,var(--gold) 9%,var(--surface));border-radius:var(--r-lg) var(--r-lg) 0 0}.fb-qband h2{margin-top:4px}.fb-qscore{text-align:right;color:var(--muted);font-variant-numeric:tabular-nums}.fb-qscore span{font-family:var(--font-display);font-size:34px;font-weight:600;color:var(--text)}.fb-metrics{display:grid;grid-template-columns:repeat(5,1fr);border:1px solid var(--line);border-radius:var(--r-md);margin:16px 0 4px;overflow:hidden}.fb-metrics>div{padding:10px 14px;border-right:1px solid var(--line)}.fb-metrics>div:last-child{border-right:0}.fb-metrics b{display:block;font-family:var(--font-display);font-size:19px;font-weight:600;font-variant-numeric:tabular-nums}.fb-metrics span{font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}table.t.fb th{background:color-mix(in srgb,var(--gold) 10%,var(--surface));border-bottom:1.5px solid var(--gold)}table.t.fb td{font-size:13px}table.t.fb td.muted{color:var(--muted);font-size:12.5px}table.t.fb td.strong{font-weight:600}table.t.fb td.fb-step{font-weight:700;color:var(--gold);white-space:nowrap}table.t.fb tr.bad td{background:color-mix(in srgb,var(--crimson) 9%,transparent)}table.t.fb tr.bad td:first-child{box-shadow:inset 3px 0 0 var(--crimson)}table.t.fb tr.total td{border-top:1.5px solid var(--text)}.fb-verified{font-size:11px;color:var(--ok);margin-top:3px}.fb-comments{display:grid;gap:10px;margin-top:20px}.fb-box{border-left:3px solid var(--gold);background:var(--surface-2);border-radius:0 var(--r-md) var(--r-md) 0;padding:12px 16px}.fb-box p,.fb-box ul,.fb-box ol{margin:4px 0 0}.fb-box ul,.fb-box ol{padding-left:20px}.fb-box li{margin:2px 0}.fb-box.red{border-color:var(--crimson);background:color-mix(in srgb,var(--crimson) 7%,var(--surface))}.fb-box.green{border-color:var(--ok);background:color-mix(in srgb,var(--ok) 7%,var(--surface))}.fb-box-h{font-size:10px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--gold)}.fb-box.red .fb-box-h{color:var(--crimson)}.fb-box.green .fb-box-h{color:var(--ok)}.fb-list{margin:0;padding-left:18px;font-size:13px}.fb-list li{margin-bottom:6px}@media (max-width: 980px){.fb-hero{grid-template-columns:1fr}.fb-hero-score{border-left:0;border-top:1px solid var(--line)}.fb-hero-details,.fb-metrics{grid-template-columns:repeat(2,1fr)}}table.t.fb td.n{white-space:nowrap}