:root{color-scheme:light;--wine:#b4532a;--gold:#d79a2b;--ink:#402a22;--muted:#786056;--line:#e6cdbc;--green:#286348;--red:#a63d36;--cream:#f7e7d7;--page:#fff7ed;--surface:#fffdf9;--surface-soft:#f8e8da;--surface-deep:#4a2f27;--on-deep:#fff5e9;--header:rgba(255,247,237,.9);--focus:#c16f24;--shadow:rgba(87,45,25,.08)}:root[data-theme=dark]{color-scheme:dark;--wine:#e8874f;--gold:#f0ba55;--ink:#f8eadf;--muted:#c6aa9b;--line:#65483d;--green:#85d7a8;--red:#ff9e94;--cream:#3a2922;--page:#211713;--surface:#2c1e19;--surface-soft:#392821;--surface-deep:#170f0d;--on-deep:#fbeadd;--header:rgba(33,23,19,.9);--focus:#f0ba55;--shadow:rgba(0,0,0,.25)}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:125px}body{margin:0;background:var(--page);color:var(--ink);font-family:Inter,system-ui,-apple-system,'Segoe UI',sans-serif;font-size:16px;line-height:1.55;transition:background-color .2s ease,color .2s ease}button,select{font:inherit}button,a,summary,select{touch-action:manipulation}button{cursor:pointer}button:disabled{opacity:.5;cursor:not-allowed}[hidden]{display:none!important}button:focus-visible,a:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--focus);outline-offset:3px}header{max-width:1280px;margin:auto;display:flex;align-items:center;gap:22px;padding:22px 28px}.brand{display:flex;align-items:center;gap:12px;color:var(--ink);text-decoration:none;font-weight:800}.brand small{display:block;font-size:14px;color:var(--muted);font-weight:500}.mark{background:var(--wine);color:#ffe2a8;border-radius:12px;width:45px;height:45px;display:grid;place-items:center;font:30px Georgia}.source-label{margin-left:auto;color:var(--muted);font-size:14px}main{max-width:1224px;margin:auto;padding:0 24px}.intro{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:22px 0 30px}.eyebrow{text-transform:uppercase;letter-spacing:.13em;font-size:12px;font-weight:800;color:var(--wine);margin:0 0 8px}h1{font:clamp(2rem,4vw,3.1rem)/1.15 Georgia,serif;letter-spacing:-.035em;margin:0 0 12px}h1 em{color:var(--wine);font-style:normal;display:block}.intro p:not(.eyebrow){color:var(--muted);max-width:600px;margin:0}.rules{display:flex;gap:20px;background:var(--surface-deep);color:var(--on-deep);padding:18px 23px;border-radius:18px;flex-shrink:0}.rules span{font-size:13px;text-align:center}.rules b{display:block;color:var(--gold);font-size:22px}.primary,.secondary{border-radius:10px;padding:11px 17px;font-weight:750;border:1px solid transparent}.primary{background:var(--wine);color:white}.primary:hover{filter:brightness(.9)}.secondary{background:var(--surface);border-color:var(--line);color:var(--ink)}.toolbar{display:flex;align-items:center;gap:20px;position:sticky;top:0;z-index:5;background:var(--header);padding:14px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);backdrop-filter:blur(12px);margin-bottom:26px}.toolbar div{font-size:14px;min-width:180px}progress{height:8px;flex:1;accent-color:var(--wine);border:0;border-radius:8px;overflow:hidden;background:var(--line)}progress::-webkit-progress-bar{background:var(--line)}progress::-webkit-progress-value{background:var(--wine)}.layout{display:grid;grid-template-columns:228px minmax(0,1fr);gap:32px;align-items:start}aside{position:sticky;top:93px;max-height:calc(100vh - 110px);overflow:auto;font-size:14px;padding-bottom:15px}.aside-title{font-weight:800;margin-bottom:12px}nav{display:grid;gap:3px}nav a{display:flex;align-items:center;justify-content:space-between;gap:8px;color:var(--ink);text-decoration:none;padding:8px 10px;border-radius:8px}nav a:hover{background:var(--surface-soft)}nav a span{font-size:12px;color:var(--muted);white-space:nowrap}.aside-note{margin:20px 10px 0;color:var(--muted);font-size:13px;line-height:1.6}.course-section{margin-bottom:40px}.course-heading{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 0 15px;scroll-margin-top:94px}.course-heading h2{font:26px Georgia;margin:0}.course-heading span{color:var(--muted);font-size:14px}.question-card{border:1px solid var(--line);background:var(--surface);border-radius:18px;padding:26px;margin-bottom:18px;box-shadow:0 4px 18px var(--shadow);scroll-margin-top:95px}.question-top{display:flex;justify-content:space-between;align-items:center;gap:15px;border-bottom:1px solid var(--line);padding-bottom:14px;margin-bottom:19px}.question-top h3{font-size:16px;margin:0;color:var(--wine)}.source{font-size:12px;text-align:right;color:var(--muted)}.question-text{font-size:17px;line-height:1.75}.case{background:var(--surface-soft);padding:18px;border-radius:12px;line-height:1.75;margin:0 0 22px}.case strong{display:block;color:var(--wine);margin-bottom:8px}.context{border:1px solid var(--line);padding:16px;border-radius:12px;margin-bottom:20px}.context summary{font-weight:700;cursor:pointer}.context .images{margin-top:15px}.images{display:flex;flex-direction:column;align-items:flex-start;gap:10px}.scan{display:block;height:auto;max-width:100%;width:var(--display-width);background:#fff}.scan img{display:block;width:100%;height:auto}.image-hint{font-size:12px;color:var(--muted);margin:6px 0 14px}.answer-group{border:0;padding:0;margin:20px 0 0;min-width:0}.answer-group legend{font-size:14px;color:var(--muted);padding:0;margin-bottom:10px}.choices{display:flex;flex-wrap:wrap;gap:9px}.choice{border:1.5px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);padding:10px;min-width:48px;min-height:46px;font-weight:750;display:flex;align-items:center;justify-content:center;gap:13px}.choice[aria-checked=true]{background:var(--surface-soft);border-color:var(--wine);color:var(--wine);box-shadow:inset 0 0 0 1px var(--wine)}.choice.text-choice{width:100%;text-align:left;justify-content:flex-start;font-weight:400;padding:12px 15px}.choice .letter{font-weight:850;flex-shrink:0}.clear-answer{border:0;background:transparent;color:var(--muted);font-size:14px;padding:10px;text-decoration:underline}.selection-note{margin-top:10px;color:var(--muted);font-size:13px}.finish-card{text-align:center;border-radius:18px;background:var(--surface-deep);color:var(--on-deep);padding:35px 20px}.finish-card h2{font:27px Georgia;margin:0}.finish-card p{color:var(--muted)}.finish-card button{background:var(--gold);color:var(--surface-deep)}.notice:empty{display:none}.notice{padding:13px 18px;background:var(--surface-soft);border:1px solid var(--gold);border-radius:10px;margin:10px 0 20px}.result-head h2{font:42px Georgia;margin:0}.result-head p:last-child{color:var(--muted)}.totals{display:grid;grid-template-columns:2fr repeat(3,1fr);gap:15px;margin:28px 0 16px}.metric{background:var(--surface);border:1px solid var(--line);padding:22px;border-radius:16px}.metric b{font:36px Georgia;display:block}.metric small{display:block;color:var(--muted);font-size:14px}.metric:first-child{background:var(--wine);color:white}.metric:first-child small{color:var(--on-deep)}.formula{font-size:14px;color:var(--muted)}.insights{border-left:3px solid var(--gold);padding:8px 20px;margin:25px 0;background:var(--surface-soft)}.insights p{margin:7px 0}.tabs{display:flex;gap:8px;border-bottom:1px solid var(--line);margin-top:30px}.tabs button{background:transparent;border:0;border-bottom:3px solid transparent;padding:15px 18px;color:var(--muted);font-weight:700}.tabs button[aria-selected=true]{color:var(--wine);border-bottom-color:var(--wine)}.table-wrap{overflow:auto;background:var(--surface);border:1px solid var(--line);border-radius:12px;margin:24px 0}table{width:100%;border-collapse:collapse;white-space:nowrap;font-size:14px}caption{text-align:left;padding:18px;font-weight:750}th,td{padding:13px 16px;text-align:right;border-top:1px solid var(--line)}th{background:var(--surface-soft);font-weight:750}td:first-child,th:first-child{text-align:left}tfoot{font-weight:800}td button{border:0;background:transparent;color:var(--wine);text-decoration:underline;font:inherit;cursor:pointer;min-width:24px}.review-controls{display:flex;align-items:end;gap:18px;margin:24px 0;flex-wrap:wrap}.review-controls label{font-size:14px;font-weight:700}.review-controls select{display:block;padding:11px 13px;border:1px solid var(--line);border-radius:9px;margin-top:7px;background:var(--surface);color:var(--ink);max-width:100%}.review-controls p{font-size:14px;color:var(--muted)}.result-badge{display:inline-block;font-size:14px;font-weight:700;border-radius:6px;padding:5px 9px;background:#f0f1f3;color:#566174}.result-badge.correcta{background:#e3f5ed;color:var(--green)}.result-badge.incorrecta{background:#ffebe9;color:var(--red)}.answer-feedback{border-top:1px solid var(--line);margin-top:20px;padding-top:18px}.answer-feedback p{margin:9px 0}.solution{border:1px solid var(--line);background:var(--surface-soft);border-radius:12px;padding:15px;margin-top:15px}.solution summary{font-weight:750;cursor:pointer}.solution .images{background:white;margin-top:16px;padding:10px}.empty{padding:40px;text-align:center;color:var(--muted);background:var(--surface);border-radius:16px}footer{font-size:13px;color:var(--muted);line-height:1.7;border-top:1px solid var(--line);padding:25px 0;margin-top:50px}dialog{border:1px solid var(--line);border-radius:18px;padding:28px;max-width:480px;width:calc(100% - 32px);color:var(--ink);background:var(--surface)}dialog::backdrop{background:#211713aa}dialog h2{margin:0;font:28px Georgia}.dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:25px}@media(max-width:960px){.intro{align-items:start;flex-direction:column;gap:18px}.rules{padding:10px 20px}.rules span{display:flex;gap:10px;align-items:center}.layout{grid-template-columns:1fr}aside{position:static;max-height:none;border:1px solid var(--line);padding:16px;border-radius:12px}nav{grid-template-columns:repeat(3,minmax(0,1fr))}.aside-note{margin-top:12px}.totals{grid-template-columns:repeat(2,1fr)}}@media(max-width:580px){header{padding:16px;gap:12px}.source-label{display:none}header button{margin-left:auto;padding:8px 10px;font-size:14px}.brand small{font-size:12px}.mark{width:36px;height:40px}main{padding:0 14px}.intro{padding-top:10px}h1{font-size:31px}.rules{width:100%;justify-content:space-between;gap:8px}.rules span{display:block}.toolbar{gap:12px;flex-wrap:wrap;padding:10px 0}.toolbar div{min-width:0;flex:1}.toolbar progress{order:3;flex-basis:100%}.toolbar button{font-size:14px;padding:9px 10px}nav{grid-template-columns:repeat(2,minmax(0,1fr))}nav a{padding:6px;font-size:13px}.course-heading{align-items:start}.course-heading h2{font-size:24px}.course-heading span{white-space:nowrap}.question-card{padding:18px 14px;border-radius:12px}.question-top{align-items:start}.source{max-width:45%}.case{padding:14px}.context{padding:10px}.metric{padding:15px}.metric b{font-size:30px}.review-controls{align-items:stretch}.review-controls label{width:100%}.review-controls select{width:100%}.tabs button{padding:12px 10px;font-size:14px}.totals{gap:10px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}