:root{--bg:#f7f8fb;--card:#fff;--card2:#eef1f8;--line:#d7dce8;--ink:#101728;--dim:#5b6b8c;--amber:#d97706;--amber-deep:#b45309;--cyan:#0891b2;--cyan-deep:#0e7490;--good:#059669;--soft:#dc2626;--radius-sm:10px;--radius-md:14px;--radius-lg:16px;--space-1:6px;--space-2:10px;--space-3:14px;--space-4:20px;--font:-apple-system, "Segoe UI", Roboto, "Heebo", Arial, sans-serif;--font-mono:ui-monospace, Consolas, monospace;--shadow-card:0 1px 2px #1017280a, 0 6px 16px #1017280f;--shadow-pop:0 2px 4px #1017280f, 0 10px 24px #1017281a;--noa-bg:#1a2a45;--noa-border:#2d4a7a;--noa-ink:#e8eefc;--term-bg:#0a0f1c;--term-row-hi:#13213c;--term-ink:#9fb4d8;--term-ink-strong:#e8eefc}@media (prefers-color-scheme:dark){:root{--bg:#0b1220;--card:#16213a;--card2:#1d2b4a;--line:#2a3b63;--ink:#e8eefc;--dim:#8fa3c8;--amber:#fbbf24;--amber-deep:#f59e0b;--cyan:#22d3ee;--cyan-deep:#0ea5e9;--good:#34d399;--soft:#f87171;--shadow-card:0 1px 2px #00000029, 0 6px 16px #0000003d;--shadow-pop:0 2px 4px #0003, 0 10px 24px #00000052}}:root[data-theme=light]{--bg:#f7f8fb;--card:#fff;--card2:#eef1f8;--line:#d7dce8;--ink:#101728;--dim:#5b6b8c;--amber:#d97706;--amber-deep:#b45309;--cyan:#0891b2;--cyan-deep:#0e7490;--good:#059669;--soft:#dc2626}:root[data-theme=dark]{--bg:#0b1220;--card:#16213a;--card2:#1d2b4a;--line:#2a3b63;--ink:#e8eefc;--dim:#8fa3c8;--amber:#fbbf24;--amber-deep:#f59e0b;--cyan:#22d3ee;--cyan-deep:#0ea5e9;--good:#34d399;--soft:#f87171;--shadow-card:0 1px 2px #00000029, 0 6px 16px #0000003d;--shadow-pop:0 2px 4px #0003, 0 10px 24px #00000052}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{background:var(--bg);color:var(--ink);font-family:var(--font);overscroll-behavior:none;height:100%;margin:0;padding:0}#root{flex-direction:column;max-width:480px;min-height:100dvh;margin:0 auto;padding:14px 14px 24px;display:flex}h1{letter-spacing:.5px;margin:6px 0 2px;font-size:26px}h2{margin:4px 0 8px;font-size:20px}.sub{color:var(--dim);margin:0 0 10px;font-size:14px}.center{text-align:center}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}.fade-in{animation:.35s fadeIn}@keyframes shake{0%,to{transform:none}25%{transform:translate(5px)}75%{transform:translate(-5px)}}.shake{animation:.35s shake}.mono{font-family:var(--font-mono);direction:ltr;unicode-bidi:isolate}.row{gap:8px;display:flex}.row .btn{flex:1}.foot{text-align:center;color:#52648c;margin-top:14px;font-size:11px}@media (height<=700px){#root{padding:8px 14px 16px}h1{font-size:23px}.brain-wrap{width:min(210px,52%)}.card{margin:6px 0;padding:11px}.btn{min-height:48px;padding:13px}}.theme-toggle{background:var(--card2);border:1px solid var(--line);border-radius:99px;gap:2px;padding:3px;display:inline-flex}.theme-toggle-btn{cursor:pointer;min-width:34px;min-height:34px;color:var(--dim);background:0 0;border:0;border-radius:99px;font-size:15px}.theme-toggle-btn.on{background:var(--card);color:var(--ink)}.topbar{justify-content:space-between;align-items:center;gap:8px;margin-bottom:2px;display:flex}.topbar-logo{cursor:pointer;background:0 0;border:none;align-items:center;gap:8px;min-height:44px;padding:6px 4px;font-family:inherit;display:flex}.topbar-logo-img{width:28px;height:28px;display:block}.topbar-logo-text{color:var(--ink);letter-spacing:.3px;font-size:16px;font-weight:700}.topbar-controls{align-items:center;gap:8px;display:flex}.lang-btn{cursor:pointer;background:var(--card2);color:var(--ink);border:1px solid var(--line);border-radius:var(--radius-md);min-height:44px;padding:11px 16px;font-family:inherit;font-size:14px}.rotate-hint{display:none}@media (orientation:landscape) and (height<=500px){.rotate-hint{z-index:99;background:var(--bg);text-align:center;color:var(--ink);flex-direction:column;justify-content:center;align-items:center;gap:12px;padding:24px;font-size:18px;display:flex;position:fixed;inset:0}}.rotate-icon{font-size:46px}.brain-wrap{width:min(300px,80%);margin:4px auto;position:relative}.region{transition:opacity .8s}@keyframes brainPulse{0%,to{opacity:.55}50%{opacity:1}}.region.pulse{animation:1.1s ease-in-out 2 brainPulse}.btn{border-radius:var(--radius-md);cursor:pointer;color:#082032;background:linear-gradient(135deg, var(--amber), var(--amber-deep));border:0;width:100%;min-height:54px;padding:16px;font-family:inherit;font-size:18px;font-weight:700;display:block}.btn:active{transform:scale(.98)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-sec{background:var(--card2);color:var(--ink);border:1px solid var(--line);font-weight:500}.btn-cy{background:linear-gradient(135deg, var(--cyan), var(--cyan-deep))}@keyframes btn-correct-pop{0%{box-shadow:none}40%{box-shadow:0 0 0 4px color-mix(in srgb, var(--good) 55%, transparent), var(--shadow-pop);transform:scale(1.03)}to{box-shadow:none;transform:scale(1)}}.btn.correct{animation:.36s btn-correct-pop}.tag{background:var(--card2);border:1px solid var(--line);color:var(--dim);border-radius:99px;margin:2px;padding:4px 12px;font-size:13px;display:inline-block}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:var(--space-3);margin:var(--space-2) 0;box-shadow:var(--shadow-card)}.dl-btn.on{border-color:var(--cyan);color:var(--cyan)}.exercise-demo .demo-tag{margin-bottom:6px}.demo-stage{margin:10px 0}.demo-again-btn{color:var(--dim);cursor:pointer;background:0 0;border:0;margin:0 auto;padding:6px;font-family:inherit;font-size:13px;display:block}.exercise-topbar{justify-content:space-between;margin-bottom:8px;display:flex}.exercise-task-area.is-hidden{display:none}.link-btn{color:var(--dim);cursor:pointer;background:0 0;border:0;padding:6px;font-family:inherit;font-size:14px}.result-label{color:var(--dim);text-align:center;margin:0;font-size:14px}.result-score{text-align:center;color:var(--ink);margin:4px 0;font-size:22px;font-weight:700}.result-score-max{color:var(--dim);margin-inline-start:2px;font-size:14px;font-weight:500}.noa-box{background:var(--noa-bg);border:1px solid var(--noa-border);border-radius:var(--radius-md);color:var(--noa-ink);align-items:flex-start;gap:10px;margin:10px 0;padding:12px;display:flex}.noa-av{font-size:30px}.noa-name{color:var(--cyan);margin-bottom:2px;font-size:12px}.time-limit{align-items:center;gap:8px;margin:8px 0;display:flex}.time-limit-bar{background:var(--line);border-radius:99px;flex:1;height:6px;overflow:hidden}.time-limit-bar i{background:var(--cyan);border-radius:99px;height:100%;transition:width .2s linear;display:block}.time-limit-bar i.low{background:var(--soft)}.time-limit-clock{color:var(--dim);text-align:end;min-width:2.4em;font-size:13px}.time-limit-clock.low{color:var(--soft)}.quiz{flex-direction:column;display:flex}.pick-grid{flex-direction:column;gap:8px;margin:10px 0;display:flex}.pick{border:1px solid var(--line);background:var(--card2);color:var(--ink);border-radius:var(--radius-md);text-align:start;cursor:pointer;min-height:50px;box-shadow:var(--shadow-card);padding:14px 16px;font-family:inherit;font-size:15px;transition:transform .12s,border-color .15s,background .15s}.pick:active{transform:scale(.98)}.pick.sel{border-color:var(--cyan);background:color-mix(in srgb, var(--cyan) 18%, var(--card2));box-shadow:var(--shadow-pop)}.stand-item{background:var(--card2);border-radius:var(--radius-lg);text-align:center;border:1px solid var(--line);border-top:3px solid var(--cyan);min-height:110px;box-shadow:var(--shadow-card);justify-content:center;align-items:center;margin:10px 0 16px;padding:24px 20px;font-size:21px;line-height:1.5;display:flex}.code-show{letter-spacing:10px;text-align:center;background:var(--card2);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);margin:10px 0;padding:28px 12px;font-size:40px}.code-in{letter-spacing:8px;text-align:center;border-bottom:3px solid var(--line);min-height:52px;margin:0 20px 16px;font-size:32px;transition:border-color .15s}.code-in.shake{border-color:var(--soft)}.pad{direction:ltr;grid-template-columns:repeat(3,1fr);gap:10px;display:grid}.pad button{border-radius:var(--radius-sm);border:1px solid var(--line);background:var(--card2);color:var(--ink);cursor:pointer;min-height:54px;box-shadow:var(--shadow-card);padding:14px 0;font-family:inherit;font-size:22px;font-weight:600;transition:transform .1s,background .1s}.pad button:active{background:var(--line);transform:scale(.94)}.pad button.pad-ok{color:var(--amber);border-color:color-mix(in srgb, var(--amber) 45%, var(--line));font-weight:700}.legend{flex-wrap:wrap;justify-content:center;gap:6px;margin-bottom:10px;display:flex}.legend .pair{background:var(--card2);border:1px solid var(--line);border-inline-start:3px solid var(--accent);border-radius:var(--radius-sm);color:var(--dim);align-items:center;gap:6px;padding:5px 10px 5px 8px;font-size:13px;display:inline-flex}.legend .pair-icon{font-size:15px}.ticket-icon-wrap{justify-content:center;padding:14px 0 18px;display:flex}.ticket-icon{background:var(--card);border:1px solid var(--line);width:104px;height:104px;box-shadow:var(--shadow-pop), inset 0 0 0 3px color-mix(in srgb, var(--accent) 35%, transparent);border-radius:50%;justify-content:center;align-items:center;font-size:46px;display:flex}.depts{flex-wrap:wrap;justify-content:center;gap:8px;display:flex}.depts button{border-radius:var(--radius-sm);border:1px solid var(--line);border-top:3px solid var(--accent);background:var(--card2);min-width:90px;max-width:calc(33.333% - 6px);color:var(--ink);cursor:pointer;flex:calc(33.333% - 6px);min-height:52px;padding:14px 4px;font-family:inherit;font-size:15px;font-weight:600;transition:transform .12s}.depts button:active{transform:scale(.96)}.depts button.correct{animation:.36s correct-pop}@keyframes correct-pop{0%{background:var(--card2)}35%{background:color-mix(in srgb, var(--good) 30%, var(--card2));border-top-color:var(--good);transform:scale(1.04)}to{background:var(--card2);transform:scale(1)}}.mail-grid{grid-template-columns:repeat(3,1fr);gap:10px;display:grid}.mail{background:var(--card2);border:1px solid var(--line);border-radius:var(--radius-md);text-align:center;cursor:pointer;min-height:68px;color:var(--dim);box-shadow:var(--shadow-card);padding:20px 6px 12px;font-size:26px;transition:transform .12s,opacity .25s,box-shadow .12s;position:relative}.mail:active{transform:scale(.96)}.mail .badge{top:-10px;color:#fff;border:2px solid var(--card);min-width:28px;height:28px;box-shadow:var(--shadow-pop);border-radius:99px;justify-content:center;align-items:center;padding:0 5px;font-size:14px;font-weight:700;display:flex;position:absolute;inset-inline-end:-8px}.mail .badge.num{background:linear-gradient(135deg, var(--cyan), var(--cyan-deep))}.mail .badge.pri{background:linear-gradient(135deg, var(--amber), var(--amber-deep))}.mail.correct{animation:.36s mail-correct-pop}@keyframes mail-correct-pop{0%{box-shadow:var(--shadow-card)}35%{background:color-mix(in srgb, var(--good) 25%, var(--card2));box-shadow:var(--shadow-pop);transform:scale(1.06)}to{background:var(--card2);transform:scale(1)}}.mail.done-mail{opacity:.22;pointer-events:none;transform:scale(.94)}.mon-log{background:var(--term-bg);border:1px solid var(--line);border-radius:var(--radius-md);height:240px;font-family:var(--font-mono);box-shadow:var(--shadow-card);direction:ltr;flex-direction:column;justify-content:flex-end;margin:10px 0;padding:10px;font-size:14px;display:flex;overflow:hidden}.mon-log div{color:var(--term-ink);white-space:nowrap;text-overflow:ellipsis;padding:3px 6px;overflow:hidden}.mon-log div.last{background:var(--term-row-hi);color:var(--term-ink-strong);border-radius:6px;animation:.25s fadeIn}.mon-log div.hit{background:color-mix(in srgb, var(--good) 22%, transparent);color:var(--term-ink-strong);border-radius:6px}.mon-log div.hit:after{content:" ✔ detected";color:var(--good);font-weight:600}.mon-log div.missed{background:color-mix(in srgb, var(--soft) 20%, transparent);color:var(--term-ink-strong);border-radius:6px}.mon-log div.missed:after{content:" ✘ missed";color:var(--soft);font-weight:600}.kpi{flex-wrap:wrap;justify-content:center;gap:8px;margin:10px 0;display:flex}.kpi .tag{box-shadow:var(--shadow-card);padding:6px 14px;font-size:14px}.kpi .tag b{color:var(--ink)}.ref-row{grid-template-columns:repeat(4,1fr);gap:10px;margin:10px 0;display:grid}.card-c{background:var(--card2);border:1px solid var(--line);border-radius:var(--radius-md);text-align:center;cursor:pointer;min-height:64px;box-shadow:var(--shadow-card);justify-content:center;align-items:center;gap:2px;padding:12px 4px;font-size:24px;transition:transform .12s;display:flex}.card-c:active{transform:scale(.94)}.card-c.sample{cursor:default;background:var(--card);border-radius:var(--radius-lg);min-height:96px;margin-bottom:4px;font-size:34px}.card-c.correct{animation:.36s card-correct-pop}@keyframes card-correct-pop{0%{box-shadow:var(--shadow-card)}35%{background:color-mix(in srgb, var(--good) 25%, var(--card2));box-shadow:var(--shadow-pop);transform:scale(1.06)}to{background:var(--card2);transform:scale(1)}}.client-bubble{text-align:center;min-height:28px;color:var(--dim);margin:8px 0;font-size:15px;font-weight:600;transition:color .15s}.client-bubble.ok{color:var(--good)}.client-bubble.bad{color:var(--soft)}.exercise-showcase-card{padding:var(--space-3)}.exercise-showcase-head{align-items:center;gap:var(--space-2);margin-bottom:4px;display:flex}.exercise-showcase-icon{font-size:28px;line-height:1}.exercise-showcase-head h3{margin:0 0 4px;font-size:17px}.exercise-showcase-text{margin:6px 0;font-size:14px;line-height:1.6}.exercise-showcase-note{color:var(--dim);text-align:center;margin:6px 0 0;font-size:12px}.dots{justify-content:center;gap:6px;margin:8px 0;display:flex}.dot{background:var(--line);border-radius:99px;width:9px;height:9px}.dot.done{background:var(--amber)}.dot.cur{background:var(--cyan)}.delta{border-bottom:1px solid var(--line);justify-content:space-between;padding:8px 4px;font-size:15px;display:flex}.delta:last-child{border:0}.delta b{color:var(--amber)}.banner{border:1px solid var(--amber);border-radius:var(--radius-lg);text-align:center;background:linear-gradient(135deg,#3b2f0a,#0a2733);margin:10px 0;padding:18px;font-size:20px;animation:.6s fadeIn}canvas{border-radius:var(--radius-sm);border:1px solid var(--line);background:#0a0f1c;width:100%}.stat-row{border-bottom:1px solid var(--line);justify-content:space-between;padding:7px 2px;font-size:15px;display:flex}.stat-row:last-child{border:0}.lvl{color:var(--cyan);font-weight:700}