:root{--ink:#17392f;--muted:#65796f;--green:#176448;--lime:#d9f397;--paper:#f4f5ef;--line:#dde4d9;--white:#fff;--radius:24px}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;font-size:15px;line-height:1.6}#app{max-width:1180px;margin:auto;padding:0 38px}button,input,select{font:inherit}button{cursor:pointer;transition:background .15s,transform .15s}button:hover:not(:disabled){transform:translateY(-1px)}button:disabled{cursor:default;opacity:.65}a{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #b5d778;outline-offset:3px}.topbar{display:flex;align-items:center;justify-content:space-between;padding:30px 0;border-bottom:1px solid var(--line);gap:20px}.brand{display:flex;align-items:center;gap:9px;text-decoration:none;font-size:22px;font-weight:600;letter-spacing:-.8px}.brand b{font-weight:400}.logo{background:var(--green);color:var(--lime);width:39px;height:39px;border-radius:12px;display:grid;place-items:center;font-weight:900;font-size:27px}.top-actions{display:flex;align-items:center;gap:20px}.tag,.eyebrow{font-size:11px;font-weight:750;letter-spacing:1.8px}.tag{color:var(--muted)}.text-button{border:0;background:none;color:var(--green);padding:8px 0;font-weight:650}.username{font-weight:600}.auth-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:80px;align-items:center;padding:70px 0 50px}.hero h1{font-size:clamp(38px,5vw,66px);line-height:1.12;font-weight:650;letter-spacing:-3px;margin:25px 0}.hero em{font-style:normal;color:var(--green);position:relative}.hero>p{font-size:17px;color:var(--muted);max-width:440px}.hero-stats{display:flex;gap:38px;margin:35px 0}.hero-stats div{display:flex;flex-direction:column}.hero-stats strong{font-size:32px;line-height:1.4}.hero-stats 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19px;font-weight:650}.primary{background:var(--green);color:white}.primary:hover:not(:disabled){background:#104d36}.secondary{background:#f2f6eb;border-color:var(--line);color:var(--green)}.danger-outline{background:#fff;border-color:#e5c5b9;color:#985039;width:100%}.switch{text-align:center;font-size:13px;margin:22px 0 10px}.auth-card small{display:block;text-align:center;font-size:11px}footer{text-align:center;padding:45px 0 30px;color:var(--muted);font-size:12px}footer small{font-size:10px}.greeting{padding:44px 0 25px}.greeting h1{font-size:40px;letter-spacing:-1.5px;line-height:1.2;margin:15px 0 10px}.greeting p{margin:0}.wave{color:#74a543}.dashboard-grid{display:grid;grid-template-columns:1.8fr 1fr;gap:24px}.side-stack{display:grid;gap:20px}.accent-card{background:var(--lime);border-color:#c9e688}.accent-card h2{font-size:32px}.accent-card p,.tips p{font-size:13px}.accent-card .secondary{background:var(--ink);color:white;border:0}.tips{padding:25px 30px}.tips p{margin-bottom:0;color:var(--muted)}.mode-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:24px}.mode{margin:0;display:flex;gap:8px;align-items:flex-start;padding:20px 14px;border:1px solid var(--line);border-radius:14px;background:#fafbf8;cursor:pointer}.mode:has(input:checked){border-color:var(--green);background:#f0f7e9}.mode input{accent-color:var(--green);margin-top:7px}.mode strong{display:block;font-size:14px}.mode span{display:block;font-size:11px;font-weight:400;color:var(--muted);margin-top:8px}.form-row{display:grid;grid-template-columns:1.5fr 1fr;gap:16px}.resume{background:#e9f0db;border:1px solid #d3dfc2;border-radius:18px;padding:22px 26px;display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:24px}.resume p{font-size:13px;margin:5px 0 0}.notice{background:#fff0e9;color:#943f23;border:1px solid #e9c8b6;padding:15px 20px;border-radius:13px;margin:20px 0}.session-head{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:30px 0 22px}.session-head h2{font-size:28px;letter-spacing:-.8px;margin:9px 0 0}.session-head p{font-size:13px;margin:5px 0}.timer{background:var(--lime);padding:15px 25px;border-radius:16px;font-size:23px;font-weight:750;font-variant-numeric:tabular-nums;white-space:nowrap}.timer.urgent{background:#ffe1d5;color:#a63d24}.quiz-grid{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:24px;align-items:start}.question-meta{display:flex;justify-content:space-between;align-items:center;gap:12px}.pill{background:#eef4e6;padding:5px 10px;border-radius:20px;font-size:11px}.progress{appearance:none;display:block;width:100%;height:5px;background:#edf1e8;border:0;border-radius:5px;overflow:hidden;margin:22px 0}.progress::-webkit-progress-bar{background:#edf1e8}.progress::-webkit-progress-value{background:var(--green)}.progress::-moz-progress-bar{background:var(--green)}.question-card h2.question{font-size:23px;line-height:1.5;margin:20px 0 26px;font-weight:600}.options{display:grid;gap:12px}.option{display:flex;align-items:center;text-align:left;gap:14px;padding:15px;width:100%;background:white;border:1px solid var(--line);border-radius:13px;color:var(--ink);font-size:14px}.option:disabled{opacity:1}.option-letter{display:grid;place-items:center;width:33px;min-width:33px;height:33px;border-radius:9px;background:#f1f4ed;font-weight:700}.option-check{margin-left:auto}.option.selected{border-color:var(--green);background:#f0f6e9}.option.correct{border-color:#47955a;background:#e8f4e6}.option.wrong{border-color:#d5a18b;background:#fff0e7}.feedback{padding:20px;border-radius:13px;background:#fff4e5;margin-top:22px;font-size:13px}.feedback.positive{background:#edf6e6}.feedback p{margin:9px 0 0}.save-note{color:var(--muted);font-size:11px;margin-top:18px}.question-nav{display:flex;justify-content:space-between;gap:10px;margin-top:28px;padding-top:23px;border-top:1px solid var(--line)}.question-map{padding:25px}.number-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:7px;margin:20px 0}.number-grid button{padding:7px 0;background:#f5f7f0;border:1px solid var(--line);border-radius:8px;color:var(--ink);font-size:12px}.number-grid button.answered{background:#dff0c8;border-color:#c3d7ad}.number-grid button.current{border:2px solid var(--green);font-weight:750}.question-map>p{font-size:12px}.question-map>.secondary{width:100%;font-size:12px}.result-banner{display:flex;align-items:center;gap:20px;background:#e2f0cd;border-radius:16px;padding:20px 26px;margin-bottom:22px}.result-banner strong{font-size:24px;white-space:nowrap}.result-banner span{font-size:13px}.history-list{padding:12px 30px}.history-item{display:flex;justify-content:space-between;align-items:center;gap:20px;border:0;border-bottom:1px solid var(--line);background:white;width:100%;padding:23px 0;text-align:left;color:var(--ink)}.history-item strong,.history-item span{display:block}.history-item span{font-size:12px;color:var(--muted);margin-top:5px}.history-score{font-size:25px;font-weight:750;white-space:nowrap}.history-score small{font-size:13px;font-weight:400}.pagination{display:flex;gap:12px;justify-content:flex-end;padding:20px 0}.empty{text-align:center;padding:45px}.empty p{color:var(--muted)}@media(max-width:900px){.auth-grid{gap:35px}.hero h1{font-size:47px}.auth-card{padding:28px}.dashboard-grid{grid-template-columns:1.5fr 1fr}.quiz-grid{grid-template-columns:minmax(0,1fr) 210px}.card{padding:25px}.mode-grid{grid-template-columns:1fr}.question-map{padding:20px}.number-grid{grid-template-columns:repeat(4,1fr)}}@media(max-width:680px){#app{padding:0 20px}.topbar{padding:20px 0}.brand{font-size:20px}.tag{display:none}.top-actions{gap:10px}.username{font-size:12px;max-width:95px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.top-actions button{font-size:12px}.auth-grid{display:flex;flex-direction:column;gap:27px;padding:35px 0 20px;align-items:stretch}.hero h1{font-size:42px;letter-spacing:-2px;margin:17px 0}.hero>p{font-size:14px}.hero-stats{gap:35px;margin:25px 0 0}.hero-stats strong{font-size:25px}.hero-stats span{font-size:11px}.mini-note{display:none}.auth-card{padding:26px}.auth-card h2{font-size:23px}.dashboard-grid,.quiz-grid{grid-template-columns:1fr}.greeting{padding-top:32px}.greeting h1{font-size:32px}.side-stack{grid-template-columns:1fr}.accent-card h2 br{display:none}.accent-card h2{font-size:27px}.mode-grid{grid-template-columns:1fr 1fr}.mode{padding:15px 10px}.mode strong{font-size:12px}.form-row{gap:12px;grid-template-columns:1.2fr 1fr}.form-row select{font-size:12px;padding:12px 8px}.resume{padding:19px;flex-direction:column;align-items:stretch;gap:15px}.resume button{align-self:start}.session-head{padding-top:20px;gap:12px}.session-head h2{font-size:20px}.session-head p{font-size:11px}.timer{font-size:17px;padding:12px 15px}.question-card h2.question{font-size:19px}.question-card{padding:23px}.number-grid{grid-template-columns:repeat(10,1fr)}.number-grid button{font-size:10px}.question-map{order:2}.result-banner{flex-direction:column;gap:7px;text-align:center;padding:18px}.history-list{padding:8px 20px}.history-item strong{font-size:13px}.history-item span{font-size:10px}.history-score{font-size:21px}footer{padding-top:35px}.option{font-size:13px;padding:12px;gap:11px}.empty{padding:28px 6px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}[hidden]{display:none!important}