:root{color:#182638;font-synthesis:none;background:#f5f7fa;font-family:Arial,Helvetica,sans-serif;font-size:16px}*{box-sizing:border-box}body{margin:0}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer}button:disabled{cursor:default}a{color:inherit}:is(button:focus-visible,a:focus-visible,summary:focus-visible){outline-offset:4px;outline:3px solid #147dff}button{transition:background .15s,border-color .15s,transform .15s}h1,h2,h3,p{margin-top:0}h1{letter-spacing:-1.2px;margin-bottom:14px;font-size:clamp(1.65rem,2.4vw,2.3rem);line-height:1.15}h2{letter-spacing:-.4px;font-size:1.25rem}h3{font-size:1.15rem;line-height:1.4}p{line-height:1.6}.shell{min-height:100vh;display:flex}.sidebar{background:#fff;border-right:1px solid #e2e7ed;flex-direction:column;width:238px;padding:34px 20px;display:flex;position:fixed;inset:0 auto 0 0}.brand{letter-spacing:-1px;align-items:center;gap:9px;margin:0 5px 56px;font-size:1.6rem;font-weight:800;text-decoration:none;display:flex}.brand-icon{color:#fff;background:#2163ed;border-radius:10px;place-items:center;width:39px;height:42px;display:grid}.year{color:#3469cc;letter-spacing:0;background:#edf3ff;border-radius:5px;padding:5px 7px;font-size:1rem}.nav-label{color:#788394;letter-spacing:1.3px;margin-bottom:16px;padding-left:16px;font-size:.7rem;font-weight:700}.nav-item{text-align:left;color:#586679;background:0 0;border:0;border-radius:8px;align-items:center;gap:13px;width:100%;margin-bottom:5px;padding:15px 16px;font-size:.94rem;font-weight:500;display:flex}.nav-item.active{color:#205edb;background:#edf3ff;font-weight:700}.nav-item:hover{background:#f1f5fb}.badge{background:#e3eafa;border-radius:4px;margin-left:auto;padding:2px 5px;font-size:.75rem}.sidebar-bottom{color:#647286;margin-top:auto;padding:25px 13px 0;font-size:.8rem;line-height:1.5}.sidebar-bottom strong{color:#344156;margin:12px 0 7px;font-size:.85rem;display:block}.small-icon{color:#3c6eca;display:inline-flex}.sidebar-bottom p{margin-bottom:25px;font-size:.8rem}.local-dot{background:#27976b;border-radius:50%;width:6px;height:6px;margin-right:6px;display:inline-block}.workspace{width:calc(100% - 238px);margin-left:238px}.topbar{color:#6c7687;background:#fff;border-bottom:1px solid #e2e7ed;justify-content:space-between;align-items:center;height:78px;padding:0 42px;font-size:.85rem;display:flex}.category{color:#43526a;background:#f4f6f9;border:1px solid #e3e8ef;border-radius:6px;padding:8px 12px;font-size:.8rem}main{max-width:1440px;margin:auto;padding:30px 42px 0}.breadcrumbs{color:#788496;margin-bottom:34px;font-size:.8rem}.breadcrumbs span{color:#b4bbc6;margin:0 10px}.page-heading{justify-content:space-between;gap:20px;margin-bottom:30px;display:flex}.eyebrow{color:#2f67c9;letter-spacing:1.5px;margin-bottom:13px;font-size:.69rem;font-weight:700}.muted{color:#6b7788;font-size:.9rem;line-height:1.6}.page-heading .muted{margin-bottom:0}.edition{color:#58718e;text-align:center;letter-spacing:2px;border:1px solid #cdd7e5;border-radius:50%;flex-direction:column;flex-shrink:0;justify-content:center;align-items:center;width:74px;height:74px;font-size:.6rem;line-height:1.1;display:flex;transform:rotate(7deg)}.edition b{letter-spacing:0;font-size:1.4rem}.stats{grid-template-columns:1fr 1.2fr 1fr;gap:18px;margin-bottom:36px;display:grid}.stats>div{background:#fff;border:1px solid #e2e7ee;border-radius:10px;align-items:center;gap:16px;padding:21px;display:flex}.stat-icon{color:#3f73d5;background:#eef4ff;border-radius:9px;flex-shrink:0;place-items:center;width:43px;height:45px;display:grid}.stat-icon svg{width:21px}.stats strong{letter-spacing:-.5px;font-size:1.5rem}.stats small{color:#738093;letter-spacing:0;font-size:.88rem;font-weight:400}.stats p{color:#738093;margin:5px 0 0;font-size:.73rem}.content-grid{grid-template-columns:minmax(0,1fr) 285px;gap:28px;display:grid}.section-heading{justify-content:space-between;align-items:center;margin-bottom:18px;display:flex}.section-heading h2{margin:0}.section-heading span{font-size:.8rem}.ticket-grid{grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;display:grid}.ticket{text-align:left;color:#22364f;background:#fff;border:1px solid #dee5ee;border-radius:9px;min-height:116px;padding:17px 17px 15px;position:relative;overflow:hidden}.ticket:hover{background:#f8fbff;border-color:#6698f4;transform:translateY(-2px)}.ticket>span{color:#7c8898;letter-spacing:1.2px;font-size:.6rem;display:block}.ticket strong{letter-spacing:-.5px;margin:7px 0 10px;font-size:1.8rem;font-weight:600;display:block}.ticket small{color:#6b7990;font-size:.7rem;display:block}.ticket-progress{background:#21a278;height:3px;position:absolute;bottom:0;left:0}.ticket.complete{background:#f0faf6;border-color:#b8e2d1}.right-column{padding-top:0}.exam-card{color:#fff;background:#152f56;border-radius:12px;padding:25px 23px;position:relative;overflow:hidden}.card-kicker{letter-spacing:1.6px;color:#a6bedc;font-size:.6rem}.road-symbol{color:#aac9ff;background:#244778;border:1px solid #41618d;border-radius:14px;place-items:center;width:66px;height:64px;margin:25px 0 20px;display:grid;transform:rotate(-8deg)}.exam-card h2{margin-bottom:12px;font-size:1.4rem}.exam-card p{color:#bdcce0;font-size:.86rem;line-height:1.65}.exam-facts{color:#cad7e9;gap:14px;margin:23px 0;font-size:.72rem;display:flex}.exam-facts span{align-items:center;gap:6px;display:flex}.exam-card button{color:#1b3b67;background:#fff;border:0;border-radius:6px;justify-content:space-between;align-items:center;width:100%;padding:13px;font-size:.8rem;font-weight:700;display:flex}.exam-card button:hover{background:#e5efff}.tip-card{border-bottom:1px solid #dfe5ed;margin-bottom:18px;padding:28px 3px 14px}.tip-label{letter-spacing:1.2px;color:#7f8c9f;font-size:.63rem;font-weight:700}.tip-card h3{margin-top:13px;font-size:1rem}.tip-card p,.data-note p{color:#718094;font-size:.8rem;line-height:1.7}.data-note{align-items:flex-start;gap:10px;display:flex}.data-note svg{color:#788da9;flex-shrink:0;margin-top:3px}.data-note a{text-underline-offset:3px;margin-top:8px;display:block}.data-note p{font-size:.72rem}footer{color:#8490a0;border-top:1px solid #e0e6ee;gap:24px;margin-top:40px;padding:22px 0;font-size:.7rem;display:flex}footer a{margin-left:auto}.primary,.secondary{border-radius:7px;justify-content:center;align-items:center;gap:13px;padding:13px 20px;font-size:.9rem;font-weight:600;display:inline-flex}.primary{color:#fff;background:#2463e8;border:1px solid #2463e8}.primary:hover{background:#174fc9}.secondary{color:#425673;background:#fff;border:1px solid #d7e0ed}.topics{gap:10px;display:grid}.topics button{text-align:left;color:#345079;background:#fff;border:1px solid #dee5ef;border-radius:8px;align-items:center;gap:15px;padding:18px;display:flex}.topics button span{flex:1;font-size:.95rem}.topics small{color:#7b899a;margin-top:6px;font-size:.75rem;display:block}.topics button:hover{border-color:#5387e5}.exam-intro{background:#fff;border:1px solid #e0e6ee;border-radius:12px;padding:32px}.exam-intro>svg{color:#2867de;margin-bottom:22px}.exam-intro h2{font-size:1.5rem}.exam-intro p{color:#63748a;font-size:.96rem}.exam-intro button{margin-top:12px}.quiz-heading{justify-content:space-between;align-items:center;gap:20px;margin-bottom:26px;display:flex}.timer{font-variant-numeric:tabular-nums;background:#fff;border:1px solid #dce4ed;border-radius:8px;align-items:center;gap:10px;padding:13px 17px;font-size:1.2rem;display:flex}.question-nav{flex-wrap:wrap;gap:7px;margin-bottom:24px;display:flex}.question-nav button{color:#5b6d85;background:#fff;border:1px solid #d9e2ec;border-radius:6px;min-width:38px;height:40px}.question-nav button.current{outline-offset:2px;outline:2px solid #2868e8}.question-nav button.answered{color:#295dc1;background:#e4edff}.question-card{background:#fff;border:1px solid #e0e6ee;border-radius:12px;max-width:1000px;padding:30px}.question-meta{color:#788aa2;letter-spacing:.5px;justify-content:space-between;gap:15px;margin-bottom:22px;font-size:.7rem;display:flex}.question-card h2{font-size:1.4rem;line-height:1.5}.question-image{object-fit:contain;border-radius:6px;width:650px;max-width:100%;max-height:340px;margin:22px auto 28px;display:block}.answers{gap:10px;display:grid}.answer{text-align:left;color:#344760;background:#fff;border:1px solid #dce4ef;border-radius:8px;align-items:center;gap:14px;padding:16px;font-size:1rem;line-height:1.5;display:flex}.answer>span{background:#f0f4f9;border-radius:5px;flex-shrink:0;place-items:center;width:28px;height:28px;font-size:.8rem;display:grid}.answer>svg{flex-shrink:0;margin-left:auto}.answer:not(:disabled):hover{background:#f6f9ff;border-color:#3f7aeb}.answer.chosen{background:#eef4ff;border-color:#5388ef}.answer.correct,.question-nav .correct{color:#246345;background:#eaf8f0;border-color:#90c9ae}.answer.wrong,.question-nav .wrong{color:#a04438;background:#fff0ee;border-color:#e8ada5}.explanation{background:#f0f6ff;border-left:3px solid #4a81e1;margin-top:22px;padding:19px 22px;font-size:.94rem;line-height:1.6}.explanation p{color:#516782;margin:8px 0 0}.quiz-footer{border-top:1px solid #e6ebf2;justify-content:space-between;align-items:center;gap:15px;margin-top:26px;padding-top:22px;display:flex}.quiz-footer>div{gap:10px;display:flex}.result{background:#fff;border:1px solid #e0e6ee;border-radius:12px;padding:32px}.result-icon{color:#2d6de0;margin-bottom:24px;display:inline-flex}.result-actions{gap:12px;margin:26px 0 40px;display:flex}.result details{border-top:1px solid #e1e8ef;padding:17px 0;line-height:1.6}.result summary{cursor:pointer;font-weight:500}.result details p{color:#607188;font-size:.9rem}.review-image{max-width:100%;max-height:280px;margin-top:20px}.green{color:#138253}.red{color:#b64736}.notice{background:#fff3dc;border:1px solid #efd09d;border-radius:7px;margin-bottom:20px;padding:16px;font-size:.9rem}@media (min-width:1500px){.ticket-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.ticket{min-height:126px}.ticket strong{font-size:2rem}}@media (max-width:1150px){.sidebar{width:205px;padding:30px 13px}.workspace{width:calc(100% - 205px);margin-left:205px}main{padding:26px}.topbar{padding:0 26px}.content-grid{grid-template-columns:minmax(0,1fr) 240px;gap:20px}.ticket-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.stats{gap:10px}.stats>div{gap:10px;padding:16px}.stat-icon{display:none}.stats p{font-size:.7rem}.exam-card{padding:22px 18px}}@media (max-width:900px){.content-grid{grid-template-columns:1fr}.right-column{grid-template-columns:1fr 1fr;gap:20px;margin-top:10px;display:grid}.data-note{grid-column:1/-1}.ticket-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.edition{display:none}.sidebar{width:180px}.workspace{width:calc(100% - 180px);margin-left:180px}.brand{gap:6px;font-size:1.35rem}.brand-icon{width:32px}.year{font-size:.8rem}.nav-item{gap:9px;padding:13px 10px;font-size:.86rem}.ticket{padding:13px}}@media (max-width:650px){.shell{display:block}.sidebar{border-bottom:1px solid #dce4ed;border-right:0;width:100%;padding:17px 16px 8px;position:static}.brand{margin:0 0 18px;font-size:1.4rem}.brand-icon{height:34px}.nav-label,.sidebar-bottom{display:none}.sidebar nav{grid-template-columns:repeat(4,1fr);gap:3px;display:grid}.nav-item{justify-content:center;gap:5px;padding:10px 3px;font-size:.73rem}.nav-item svg{width:16px}.badge{display:none}.workspace{width:100%;margin:0}.topbar{height:48px;padding:0 18px;font-size:.65rem}.category{padding:5px 7px;font-size:.65rem}main{padding:22px 18px 0}.breadcrumbs{margin-bottom:26px}.eyebrow{font-size:.6rem}.page-heading{margin-bottom:23px}h1{letter-spacing:-.6px;font-size:1.8rem}.stats{grid-template-columns:repeat(3,1fr);gap:7px;margin-bottom:27px}.stats>div{padding:13px 9px}.stats strong{font-size:1.25rem}.stats small{font-size:.65rem}.stats p{font-size:.62rem;line-height:1.5}.ticket-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.ticket{min-height:108px;padding:13px 10px}.ticket strong{font-size:1.6rem}.ticket small{font-size:.6rem}.right-column{grid-template-columns:1fr;gap:0}.tip-card{padding-top:24px}.data-note{grid-column:auto}.road-symbol{display:none}.exam-card h2{margin-top:19px}.question-card,.result,.exam-intro{padding:20px}.question-meta{flex-wrap:wrap}.question-card h2{font-size:1.2rem}.answer{padding:13px;font-size:.92rem}.quiz-footer{flex-direction:column;align-items:flex-start}.quiz-footer>div{justify-content:flex-end;width:100%}.question-nav{gap:6px}.question-nav button{min-width:34px;height:36px;font-size:.8rem}.timer{padding:9px;font-size:1rem}.quiz-heading h1{font-size:1.5rem}.primary,.secondary{padding:12px 15px}.result-actions{flex-wrap:wrap}footer{flex-wrap:wrap;gap:10px}footer span{display:none}}.auth-page{background:radial-gradient(at top,#e7efff,#f5f7fa 65%);place-items:center;min-height:100vh;padding:24px;display:grid}.auth-card{background:#fff;border:1px solid #dce5f0;border-radius:16px;width:100%;max-width:430px;padding:36px;box-shadow:0 20px 70px #18335b0d}.auth-card .brand-icon{margin-bottom:24px}.auth-card h1{font-size:1.8rem}.auth-card label,.account-form label,.admin-editor label,.search-label{color:#3d506a;flex-direction:column;gap:8px;margin:18px 0;font-size:.9rem;font-weight:600;display:flex}input,select{font:inherit;color:#233d5c;background:#fff;border:1px solid #cdd9e8;border-radius:7px;width:100%;padding:12px 14px}input:focus,select:focus{outline-offset:2px;outline:2px solid #6798f5}input:disabled{color:#6b7890;background:#f1f4f8}.auth-card .primary{width:100%;margin-top:10px}.account-form{max-width:480px}.user-toolbar{align-items:center;gap:18px;display:flex}.user-toolbar .secondary{padding:8px 12px;font-size:.8rem}.admin .section-heading{align-items:flex-start;gap:16px}.admin h1{font-size:1.8rem}.admin-editor,.user-stats{background:#fff;border:1px solid #dce5ef;border-radius:12px;margin:24px 0;padding:24px}.form-grid{grid-template-columns:1fr 1fr;gap:0 24px;display:grid}.admin-editor .checkbox-label{flex-direction:row;align-items:center;gap:10px}.checkbox-label input{width:18px;height:18px}.admin-editor .result-actions{margin:20px 0 0}.search-label{max-width:400px}.table-scroll{background:#fff;border:1px solid #dee5ef;border-radius:10px;overflow:auto}table{border-collapse:collapse;text-align:left;width:100%;font-size:.86rem}th{color:#58708e;white-space:nowrap;background:#edf3fa;padding:15px;font-size:.75rem;font-weight:600}td{border-top:1px solid #e5ebf2;padding:15px;line-height:1.5}td small{color:#7b889a;margin-top:4px;display:block}.row-actions{flex-wrap:wrap;gap:10px;display:flex}.row-actions button{color:#2865d8;text-underline-offset:3px;background:0 0;border:0;padding:3px 0;font-size:.8rem;text-decoration:underline}.row-actions .danger-text{color:#b34540}.user-stats h3{margin-top:25px}.topic-stats{grid-template-columns:1fr 1fr;gap:18px;display:grid}.topic-stats>div{background:#f4f7fb;border-radius:8px;padding:16px;font-size:.88rem}.topic-stats p{color:#6b7e99;margin:9px 0;font-size:.8rem}.topic-stats progress{accent-color:#2c72e9;width:100%;height:7px}.success-note{color:#276844;background:#e6f7ee;border:1px solid #b3dfc9;border-radius:8px;padding:15px}.admin .primary:disabled,.answer:disabled{cursor:default}.primary:disabled{opacity:.6}.user-toolbar span{font-size:.8rem}.auth-card .notice{font-size:.86rem}.sidebar nav{overflow-y:auto}.auth-card input,.admin input,.admin select{font-size:1rem}@media (max-width:750px){.user-toolbar{gap:8px}.user-toolbar span{font-size:.65rem}.topbar>span{display:none}.topbar{justify-content:flex-end}.admin .section-heading{flex-direction:column}.form-grid,.topic-stats{grid-template-columns:1fr}.admin-editor,.user-stats{padding:16px}.sidebar nav{flex-wrap:wrap;display:flex}.sidebar .nav-item{flex:1 0 29%;width:auto;font-size:.75rem}.auth-card{padding:26px}.user-toolbar .secondary{font-size:.75rem}}.ai-button{color:#6734a6;background:#f4effc;border:1px solid #d9c8f5;border-radius:8px;justify-content:center;align-items:center;gap:9px;padding:12px 15px;font-size:.9rem;font-weight:600;line-height:1.4;display:inline-flex}.ai-button:hover,.ai-button.is-open{background:#eae0f9;border-color:#bba0e3}.ai-button svg{flex-shrink:0}.ai-analysis{color:#253347;background:#fdfbff;border:1px solid #dfd7ea;border-left:3px solid #8956bc;border-radius:12px;margin-top:22px;padding:25px 28px;line-height:1.8;animation:.18s ease-out ai-appear}.ai-panel-label{letter-spacing:1.2px;color:#8154ab;align-items:center;gap:9px;margin-bottom:20px;font-size:.75rem;font-weight:700;display:flex}.ai-analysis h3{color:#4b246f;margin-bottom:22px;font-size:1.13rem;line-height:1.6}.ai-analysis h4{color:#4b246f;margin:0 0 9px;font-size:1rem}.ai-analysis section{margin:24px 0}.ai-analysis p,.result .ai-analysis p{color:#334154;margin:0 0 13px;font-size:1rem;line-height:1.8}.ai-analysis ul{margin:0;padding-left:23px}.ai-analysis li{margin:13px 0;padding-left:4px}.ai-analysis li strong{font-size:.95rem;font-weight:600}.ai-analysis li p{margin-top:5px}.ai-remember{color:#542b77;background:#f0eaf8;border-radius:9px;margin:24px 0;padding:17px 20px}.ai-remember p,.result .ai-remember p{margin:6px 0 0}.ai-source,.result details.ai-source{border-top:1px solid #e4dced;padding-top:15px;font-size:.9rem}.ai-source summary{cursor:pointer;color:#694b86}.ai-source p.ai-source-comment{color:#5b6271;border-left:2px solid #cfbddf;margin-top:14px;padding-left:14px;font-size:.9rem}.ai-source a{color:#694b86;text-underline-offset:3px}.ai-analysis .ai-disclosure,.result .ai-analysis .ai-disclosure{color:#83748f;margin:18px 0 0;font-size:.78rem;line-height:1.6}.ai-review{margin-top:18px}.quiz-footer{flex-wrap:wrap}.quiz-footer>div{flex-wrap:wrap;justify-content:flex-end}.ai-review .ai-analysis{margin-bottom:14px}@keyframes ai-appear{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}@media (prefers-reduced-motion:reduce){.ai-analysis{animation:none}}@media (max-width:650px){.ai-analysis{padding:20px 17px}.ai-analysis h3{font-size:1.05rem}.ai-button{font-size:.85rem}.quiz-footer>div{justify-content:flex-start}.ai-analysis p,.result .ai-analysis p{font-size:.96rem}}.collection-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;display:grid}.topics .collection-grid button{background:#eef4ff;border-color:#d3e1fb;flex-direction:column;align-items:flex-start;gap:12px;padding:18px;display:flex;position:relative}.collection-grid button strong{color:#254f95;font-size:1rem}.topics .collection-grid button span{color:#61799d;font-size:.85rem;line-height:1.5}.collection-grid button>svg:last-child{align-self:flex-end}.collection-note{color:#728096;margin:15px 0 26px;font-size:.85rem;line-height:1.7}.mistake-tabs{flex-wrap:wrap;gap:8px;margin-bottom:18px;display:flex}.mistake-tabs button{color:#536a86;background:#fff;border:1px solid #d9e3ef;border-radius:8px;align-items:center;gap:8px;padding:12px 15px;font-size:.9rem;display:flex}.mistake-tabs button[aria-pressed=true]{color:#265bb4;background:#e9f1ff;border-color:#90b3ec}.mistake-tabs button span{background:#edf1f6;border-radius:5px;padding:3px 6px;font-size:.8rem}.archived-list details{background:#fff;border:1px solid #dbe4ef;border-radius:9px;margin:12px 0;padding:20px}.archived-list summary{cursor:pointer;line-height:1.6}.archived-list summary strong{margin:7px 0;font-size:1rem;display:block}.archived-list summary span,.archived-list summary small{color:#74849a;font-size:.8rem}.archived-list p{margin-top:16px;font-size:.95rem;line-height:1.7}.archived-list .ai-analysis p{margin-top:0}@media (max-width:800px){.collection-grid{grid-template-columns:1fr}.topics .collection-grid button{grid-template-columns:25px 1fr 20px;gap:10px;display:grid}.collection-grid button span{grid-column:2}.collection-grid button>svg:last-child{grid-area:1/3/3;align-self:center}.mistake-tabs button{flex:1;justify-content:center;padding:10px;font-size:.85rem}}