:root{--text:#111;--muted:#767676;--line:#dadada;--surface:#f7f7f7;--paper:#fff;--highlight:#ececec;--page:1100px;color-scheme:light}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}
button{font:inherit;color:inherit;cursor:pointer}button:disabled{cursor:not-allowed;opacity:.45}button:focus-visible,a:focus-visible{outline:3px solid #111;outline-offset:3px}a{color:inherit}
.shell{max-width:var(--page);margin:0 auto;padding:0 28px}.header{border-bottom:1px solid var(--line);background:#fff}.header-in{height:74px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:11px;border:0;background:none;padding:4px 0;font-weight:850;letter-spacing:-.055em;font-size:23px}.brand-mark{background:#111;color:#fff;display:grid;place-items:center;width:35px;height:35px;border-radius:9px;font-size:13px;letter-spacing:-.05em}.header-trail{color:var(--muted);font-size:13px}.hero{padding:76px 0 39px}.overline{text-transform:uppercase;letter-spacing:.16em;font-size:11px;font-weight:750;color:#666}.hero h1{font-size:clamp(40px,6vw,66px);line-height:1.07;letter-spacing:-.065em;font-weight:810;margin:19px 0}.hero h1 span{color:#888}.hero-desc{max-width:620px;color:#555;font-size:16px;line-height:1.6;margin:0}.metrics{margin:37px 0 0;display:grid;grid-template-columns:repeat(4,1fr);border:1px solid #ddd;border-radius:14px;overflow:hidden}.metric{padding:21px 24px;border-right:1px solid #ddd}.metric:last-child{border-right:0}.metric strong{font-size:28px;display:block;letter-spacing:-.05em}.metric span{display:block;color:#777;font-size:12px;margin-top:4px}.note{padding:15px 20px;border:1px solid #ddd;border-radius:12px;background:#fafafa;color:#555;font-size:13px;line-height:1.65}.note strong{color:#111}.section-title{display:flex;align-items:baseline;justify-content:space-between;margin:37px 0 20px;gap:10px}.section-title h2{font-size:20px;letter-spacing:-.025em;margin:0}.section-title small{color:#777}.catalogue{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:13px}.serie-card{border:1px solid #ddd;background:#fff;border-radius:14px;text-align:left;padding:20px;min-height:176px;display:flex;flex-direction:column;justify-content:space-between;transition:background .18s,border-color .18s}.serie-card:hover{border-color:#111;background:#fafafa}.serie-card:focus-visible{outline-offset:3px}.serie-top{display:flex;justify-content:space-between;align-items:start}.serie-number{font-weight:800;font-size:31px;letter-spacing:-.06em}.serie-arrow{color:#777;font-size:20px}.serie-bottom h3{margin:0 0 6px;font-size:14px}.serie-bottom p{margin:0;color:#777;font-size:12px}.serie-bottom .status{margin-top:13px;font-size:11px;font-weight:750;text-transform:uppercase;letter-spacing:.07em;color:#111}.bar{height:4px;background:#e9e9e9;border-radius:4px;overflow:hidden;margin-top:14px}.bar>i{display:block;background:#111;height:100%}.footer{padding:45px 0;border-top:1px solid #eee;margin-top:56px;color:#777;font-size:12px}.back{margin-top:27px;padding:10px 0;border:0;background:none;color:#666;font-size:13px}.back:hover{color:#111}.quizhead{display:flex;justify-content:space-between;gap:16px;align-items:end;margin:17px 0 23px}.quizhead h1{margin:6px 0 4px;letter-spacing:-.045em;font-size:36px}.quizhead p{color:#777;font-size:13px;margin:0}.progress-chip{border:1px solid #111;border-radius:30px;padding:10px 14px;font-size:12px;font-weight:750;white-space:nowrap}.quiz-layout{display:grid;grid-template-columns:228px minmax(0,1fr);gap:26px;align-items:start;margin-top:28px}.sidebar{border:1px solid #e2e2e2;border-radius:14px;padding:19px;position:sticky;top:18px}.sidebar h3{font-size:13px;margin:0 0 16px}.navdots{display:grid;grid-template-columns:repeat(5,1fr);gap:7px}.navdot{min-width:0;aspect-ratio:1;border:1px solid #ddd;border-radius:7px;background:white;font-size:11px;font-weight:600}.navdot.active{background:#111;color:#fff;border-color:#111}.navdot.answered:not(.active){background:#ebebeb;border-color:#bababa}.navdot.missing{border-style:dashed;color:#999}.sidebar-note{margin-top:17px;padding-top:14px;border-top:1px solid #ddd;font-size:12px;line-height:1.6;color:#777}.work{min-width:0}.question-head{display:flex;justify-content:space-between;align-items:center;gap:14px;margin-bottom:13px}.question-head h2{margin:0;font-size:20px;letter-spacing:-.025em}.question-head span{font-size:13px;color:#777}.question-panel{border:1px solid #ddd;border-radius:14px;background:white;overflow:hidden}.panel-top{padding:13px 16px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #ececec;font-size:12px;color:#777}.text-button{border:0;background:#f3f3f3;padding:9px 11px;font-size:12px;border-radius:7px;color:#222}.text-button:hover{background:#e7e7e7}.frame-scroll{overflow-x:auto;padding:14px 10px 5px;background:#fff}.image-frame{width:100%;position:relative;overflow:hidden;margin:0 auto;background:#f5f5f5;isolation:isolate}.frame-scroll.enlarged .image-frame{min-width:849px}.sprite{position:relative;display:block;left:0;width:100%;height:auto;max-width:none;user-select:none;pointer-events:none}.hotspot{position:absolute;left:0.5%;width:98.2%;height:5.55%;border:2px solid transparent;background:transparent;border-radius:5px;transition:background .12s,border-color .12s}.hotspot:hover{border-color:#888;background:rgba(0,0,0,.035)}.hotspot.selected{border:3px solid #111;background:rgba(0,0,0,.045)}.hotspot:disabled:hover{background:none}.choice-strip{border-top:1px solid #eee;padding:16px}.choice-strip p{margin:0 0 11px;color:#777;font-size:12px}.letters{display:flex;gap:9px;flex-wrap:wrap}.letter{min-width:55px;padding:10px 17px;border:1px solid #ccc;border-radius:8px;background:#fff;font-size:13px;font-weight:730}.letter.selected{border-color:#111;background:#111;color:white}.letter:hover:not(:disabled){border-color:#111}.choice-status{font-size:12px;color:#777;margin-top:12px;min-height:17px}.missing-panel{border:1px dashed #ccc;background:#fafafa;border-radius:13px;text-align:center;padding:82px 24px}.missing-panel strong{display:block;font-size:23px;margin:0 0 10px;letter-spacing:-.03em}.missing-panel p{max-width:400px;color:#777;line-height:1.65;margin:0 auto;font-size:14px}.missing-icon{margin:0 auto 19px;display:grid;place-items:center;background:white;border:1px solid #ddd;border-radius:50%;width:56px;height:56px;font-weight:750;font-size:22px}.actions{display:flex;justify-content:space-between;gap:12px;margin-top:19px}.btn{border:1px solid #111;border-radius:9px;background:#111;color:white;padding:13px 17px;font-size:13px;font-weight:750;min-height:45px}.btn:hover:not(:disabled){background:#333}.btn.secondary{background:white;color:#111}.btn.secondary:hover{background:#f4f4f4}.btn.full{width:100%;margin-top:15px}.result{padding:53px 0 0;max-width:740px;margin:0 auto}.result .big-score{font-size:78px;font-weight:850;letter-spacing:-.08em;line-height:1;margin:14px 0}.result h1{font-size:35px;letter-spacing:-.05em;margin:9px 0}.result p{font-size:14px;color:#666;line-height:1.6}.result-grid{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid #ddd;border-radius:12px;margin:25px 0;overflow:hidden}.result-grid>div{padding:19px;border-right:1px solid #ddd}.result-grid>div:last-child{border-right:0}.result-grid strong{display:block;font-size:24px}.result-grid span{display:block;color:#777;font-size:12px}.result-actions{display:flex;gap:12px;flex-wrap:wrap}.review-line{padding:12px 15px;border:1px solid #ddd;border-radius:9px;margin-bottom:9px;font-size:13px;display:flex;justify-content:space-between;gap:12px;align-items:center}.review-line button{border:0;background:none;text-decoration:underline;padding:0;text-align:left}.review-line .right{font-weight:750}.question-feedback{margin:12px 0 0;padding:13px;border:1px solid #ddd;border-radius:9px;font-size:13px}.question-feedback strong{display:block;margin-bottom:4px}.question-feedback p{margin:0;color:#666}.time{font-variant-numeric:tabular-nums;display:inline-flex;gap:7px;align-items:center}.work-note{color:#777;font-size:12px;margin-top:15px;line-height:1.55}
@media(max-width:880px){.catalogue{grid-template-columns:repeat(3,minmax(0,1fr))}.quiz-layout{grid-template-columns:1fr}.sidebar{position:static;order:2}.work{order:1}.navdots{grid-template-columns:repeat(13,1fr)}.sidebar-note{max-width:700px}}@media(max-width:650px){.shell{padding:0 17px}.header-in{height:61px}.header-trail{display:none}.hero{padding:48px 0 31px}.hero h1{font-size:42px}.metrics{grid-template-columns:repeat(2,1fr)}.metric:nth-child(2){border-right:0}.metric:nth-child(-n+2){border-bottom:1px solid #ddd}.metric{padding:16px}.catalogue{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.serie-card{padding:15px;min-height:158px}.serie-number{font-size:26px}.navdots{grid-template-columns:repeat(8,1fr)}.quizhead{align-items:start}.quizhead h1{font-size:29px}.progress-chip{padding:9px;font-size:10px}.panel-top{padding:11px}.image-frame{min-width:620px}.actions .btn{padding:11px;font-size:12px}.result .big-score{font-size:62px}.result-grid>div{padding:12px}.section-title h2{font-size:19px}}

/* Home: compact catalogue with restrained French tricolour accents */
:root{--accent-blue:#2459a6;--accent-red:#c83a45}
.header{border-top:3px solid transparent;border-image:linear-gradient(90deg,var(--accent-blue) 0 50%,var(--accent-red) 50% 100%) 1}
.brand-mark{border-radius:7px}
.hero{padding:50px 0 26px}
.hero h1{font-size:clamp(38px,5vw,58px);margin:16px 0}
.metrics{margin-top:26px;border-radius:10px}
.metric{padding:14px 18px}
.metric strong{font-size:25px}
.note{padding:12px 16px;border-left:3px solid var(--accent-blue)}
.section-title{margin:25px 0 14px}
.catalogue{grid-template-columns:repeat(5,minmax(0,1fr));gap:10px}
.serie-card{position:relative;min-height:112px;padding:13px 14px 12px;border-radius:10px;justify-content:initial;gap:10px;overflow:hidden}
.serie-card::before{content:"";position:absolute;inset:0 auto 0 0;width:3px;background:transparent;transition:background .18s}
.serie-card:hover::before,.serie-card:focus-visible::before{background:var(--accent-blue)}
.serie-card:nth-child(2n):hover::before,.serie-card:nth-child(2n):focus-visible::before{background:var(--accent-red)}
.serie-number{font-size:23px;line-height:1}
.serie-arrow{font-size:15px;line-height:1}
.serie-bottom h3{font-size:12px;margin:0 0 3px}
.serie-bottom p{font-size:11px}
.serie-bottom .status{font-size:9px;letter-spacing:.045em;margin-top:8px}
.bar{height:3px;margin-top:8px}
.bar>i{background:var(--accent-blue)}
.serie-card:nth-child(2n) .bar>i{background:var(--accent-red)}
@media(max-width:1050px){.catalogue{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:880px){.catalogue{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:650px){.hero{padding:37px 0 23px}.hero h1{font-size:39px}.catalogue{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.serie-card{min-height:110px;padding:12px}.serie-number{font-size:22px}.metric{padding:12px}}
@media(prefers-reduced-motion:reduce){.serie-card,.serie-card::before{transition:none}}

/* Accessible, compact completion confirmation */
.confirm-overlay{position:fixed;inset:0;z-index:1000;background:rgba(10,18,28,.52);display:grid;place-items:center;padding:18px;backdrop-filter:blur(4px)}
.confirm-dialog{width:min(100%,470px);padding:29px;border-radius:17px;background:#fff;box-shadow:0 25px 90px rgba(0,0,0,.2);border-top:4px solid var(--accent-blue)}
.confirm-kicker{color:var(--accent-blue);font-size:11px;font-weight:800;letter-spacing:.14em}
.confirm-dialog h2{font-size:27px;line-height:1.2;letter-spacing:-.05em;margin:12px 0}
.confirm-dialog p{font-size:14px;line-height:1.65;color:#555;margin:0}
.confirm-dialog p strong{color:#111}
.confirm-count{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:20px;padding:15px 0;border-top:1px solid #eee;border-bottom:1px solid #eee;font-size:13px;color:#666}
.confirm-count strong{color:#111;font-size:21px}
.confirm-actions{display:flex;gap:10px;margin-top:22px;flex-wrap:wrap}
.confirm-actions .btn{flex:1;min-width:165px}
@media(max-width:480px){.confirm-dialog{padding:22px}.confirm-actions{flex-direction:column}.confirm-actions .btn{width:100%}}

/* Compact, consistent action controls */
.btn{padding:9px 13px;min-height:38px;font-size:12px;border-radius:7px}
.btn.full{margin-top:12px}
.actions{gap:9px;margin-top:14px}
.letter{min-width:45px;padding:8px 12px;font-size:12px;border-radius:7px}
.text-button{padding:7px 10px;font-size:11px}
.confirm-actions{gap:8px;margin-top:18px}
.confirm-actions .btn{flex:0 1 auto;min-width:0;padding:10px 12px;font-size:12px;min-height:40px}
@media(max-width:480px){.confirm-actions .btn{width:100%;min-height:42px}}

/* Result and series card level metadata */
.serie-level{font-size:10px;line-height:1.5;color:var(--muted);margin-top:5px}
.level-panel{border:1px solid var(--line);border-left:3px solid var(--accent-blue);border-radius:10px;padding:18px;margin:20px 0}
.level-heading{font-size:12px;font-weight:750;letter-spacing:.04em;color:#555}
#official-level-display{font-weight:800;font-size:19px;margin-top:9px;letter-spacing:-.025em}
.level-panel p{font-size:12px;line-height:1.55;margin:10px 0 16px}
.level-panel label{display:block;font-weight:650;font-size:12px;margin-bottom:7px}
.level-panel input{width:150px;max-width:100%;padding:9px 11px;border:1px solid #bbb;border-radius:7px;font:inherit;font-size:13px}
.level-panel input:focus-visible{outline:2px solid var(--accent-blue);outline-offset:2px}
.level-help{font-size:11px;color:#777;margin-top:9px}

/* Question-specific scoring metadata (only when the source supplies a verified value) */
.question-meta{display:flex;align-items:center;gap:9px;flex-wrap:wrap;justify-content:flex-end}
.question-points{display:inline-flex;align-items:center;border:1px solid #dcdfe5;border-radius:6px;background:#f8f9fb;color:#525a66;font-size:11px;font-weight:650;padding:5px 8px;white-space:nowrap}
@media(max-width:480px){.question-meta{gap:5px}.question-points{font-size:10px;padding:4px 6px}}