@import url('https://fonts.googleapis.com/css2?family=Heebo:wght@400;500;600;700;800;900&display=swap');
/* Keep audio controls available at the end of a focused questionnaire. */
body.focus-mode footer{display:flex;justify-content:center;margin:12px auto 145px;padding:10px;max-width:1000px}body.focus-mode footer>span,body.focus-mode footer>#about-button{display:none}
:root{font-family:Heebo,Arial,sans-serif;color:#20243b;background:#f5f6fa;font-synthesis:none;--navy:#171c36;--purple:#6752cf;--green:#c8f281;--muted:#707589;--line:#e6e8f0}*{box-sizing:border-box}body{margin:0}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer}button:disabled{cursor:default}button:focus-visible,a:focus-visible{outline:3px solid #8b70ef;outline-offset:4px}a{color:inherit}.header{height:92px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 max(5vw,24px);background:white}.brand{text-decoration:none;display:flex;align-items:center;gap:12px;font-size:32px;font-weight:900;line-height:1.05}.brandmark{background:var(--navy);color:var(--green);border-radius:13px;width:45px;height:48px;display:grid;place-items:center;font-size:40px}.brand-sub{display:block;font-size:12px;font-weight:500;margin-top:5px;color:var(--muted)}.header-end{display:flex;align-items:center;gap:22px;font-size:14px}.beta{background:#f1eefb;color:#5e4d9f;padding:7px 12px;border-radius:7px}.country{color:var(--muted)}main{max-width:1280px;margin:auto;padding:34px 32px 16px}.intro{display:flex;justify-content:space-between;align-items:center;margin-bottom:29px}.eyebrow{font-size:14px;color:var(--purple);font-weight:700;margin:0 0 7px}h1{font-size:34px;letter-spacing:-1.1px;line-height:1.3;margin:0 0 6px;font-weight:800}.subtitle{color:var(--muted);font-size:16px;margin:0}.score-total{display:flex;align-items:center;gap:9px;padding:12px 18px;background:#fff;border:1px solid var(--line);border-radius:12px;font-size:14px}.score-total>span:first-child{color:#a98624;font-size:26px}.score-total strong{font-size:24px}.workspace{display:grid;grid-template-columns:240px minmax(0,1fr);gap:30px;align-items:start}.section-label{font-size:13px;font-weight:600;color:var(--muted);margin:0 0 14px}.sidebar{padding-top:4px}.mode{border:1px solid transparent;background:transparent;border-radius:12px;display:flex;text-align:right;width:100%;padding:15px 12px;gap:12px;align-items:center;margin-bottom:8px;color:#656a7e}.mode.active{background:white;border-color:#dcd5fa;color:#4e3cac;box-shadow:0 4px 18px #28235a05}.mode:hover{background:#eeedf6}.mode-icon{font-size:25px;width:30px;text-align:center}.mode strong{display:block;font-size:15px}.mode small{display:block;font-size:12px;margin-top:3px;font-weight:400}.mode-arrow{margin-right:auto;font-size:23px}.journey{margin:27px 10px 0;border-top:1px solid var(--line);padding-top:23px}.journey-number{display:flex;align-items:baseline;gap:8px;margin:10px 0}.journey-number strong{font-size:29px}.journey-number span,.journey p{font-size:13px;color:var(--muted)}.journey small{font-size:12px;color:var(--muted)}.track{height:7px;border-radius:8px;background:#e4e5ed;overflow:hidden}.track>div{height:100%;background:var(--purple);transition:width .3s}.tiny-tip{margin:26px 10px;color:var(--muted);font-size:14px;line-height:1.7}.tiny-tip>span{color:#3d425e;font-weight:600}.tiny-tip p{margin-top:6px}.lesson{border:1px solid var(--line);border-radius:19px;background:white;overflow:hidden;box-shadow:0 12px 35px #27315704}.lesson-top{display:flex;justify-content:space-between;align-items:center;padding:18px 26px;font-size:14px;font-weight:600}.lesson-top #count{direction:ltr;color:var(--muted);font-size:13px;letter-spacing:1px}.lesson-progress{height:4px;background:#f1eff8}.lesson-progress>div{height:100%;background:var(--purple);transition:width .3s}.question-head{padding:24px 28px 18px}.question-head .tag{font-size:12px;color:var(--purple);font-weight:600;display:block;margin-bottom:5px}h2{font-size:25px;margin:0 0 7px;line-height:1.45;letter-spacing:-.5px}.question-head p{font-size:15px;color:var(--muted);line-height:1.7;margin:0}.question-body{display:grid;grid-template-columns:1.04fr 1fr;gap:22px;padding:0 28px 24px;align-items:start}.diagram{background:var(--navy);border-radius:13px;overflow:hidden;position:relative;min-width:0}.diagram svg{width:100%;display:block;height:auto}.diagram-caption{position:absolute;right:14px;top:12px;background:#ffffff12;border:1px solid #ffffff1a;padding:4px 9px;border-radius:6px;color:#dedfeb;font-size:12px}.diagram-bottom{color:#bec3d5;position:absolute;bottom:12px;text-align:center;width:100%;font-size:12px}.answers{display:grid;gap:9px}.answers-label{font-size:13px;color:var(--muted);margin:0 0 2px}.answer{display:flex;gap:11px;align-items:center;min-height:59px;text-align:right;border:1px solid #e0e3ed;border-radius:10px;padding:12px;background:white;font-size:15px;line-height:1.5;color:var(--navy);transition:background .15s,border-color .15s,transform .15s}.answer:not(:disabled):hover{border-color:#9c88e6;background:#f8f6ff;transform:translateX(-2px)}.answer .letter{flex-shrink:0;width:25px;height:25px;border-radius:7px;background:#f2f3f7;display:grid;place-items:center;font-size:12px;color:#767a8a}.answer.correct{background:#eff8e6;border-color:#9bc464}.answer.correct .letter{background:#c7eaa6;color:#305318}.answer.wrong{background:#fff1ee;border-color:#e9a392}.answer.wrong .letter{background:#f7d6cc;color:#9f3925}.answer:disabled:not(.correct):not(.wrong){opacity:.55}.feedback{margin:0 28px 24px;border-radius:12px;background:#f4f1fe;padding:18px 20px;animation:appear .25s ease-out}.feedback.good{background:#f0f8e7}.feedback h3{margin:0 0 6px;font-size:17px}.feedback p{margin:0;font-size:15px;line-height:1.7;color:#474d60}.feedback-footer{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:17px}.feedback-footer small{font-size:13px;color:#65714f}.primary{background:var(--navy);border:0;border-radius:9px;color:#fff;font-size:15px;padding:12px 22px;font-weight:600}.primary:hover{background:#313959}.primary.lime{background:var(--green);color:var(--navy)}.secondary{border:1px solid #dadce7;border-radius:9px;background:white;color:var(--navy);padding:11px 18px;font-size:14px}.exercise-note{padding:0 28px 19px;font-size:12px;color:#85899a;margin:0}.result{text-align:center;padding:40px 28px}.result-emblem{width:80px;height:80px;margin:0 auto 20px;border-radius:50%;background:var(--green);font-size:40px;display:grid;place-items:center}.result h2{font-size:30px}.result>p{font-size:16px;color:var(--muted);max-width:490px;margin:10px auto;line-height:1.8}.result-stats{display:flex;gap:40px;justify-content:center;margin:26px 0}.result-stats strong{display:block;font-size:31px}.result-stats span{font-size:14px;color:var(--muted)}.result-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}.review-list{text-align:right;max-width:470px;margin:25px auto;background:#f6f5fb;border-radius:10px;padding:17px 20px}.review-list strong{font-size:14px}.review-list p{font-size:14px;color:var(--muted);margin:7px 0 0}footer{margin:23px 270px 0 0;display:flex;justify-content:space-between;gap:12px;color:#808598;font-size:12px}footer button{background:none;border:0;padding:0;color:#6c6485;font-size:12px;text-decoration:underline;text-underline-offset:4px}dialog{border:1px solid var(--line);border-radius:18px;padding:32px;max-width:540px;width:calc(100% - 32px);color:var(--navy)}dialog::backdrop{background:#12162f80;backdrop-filter:blur(4px)}dialog p{font-size:16px;line-height:1.8}dialog a{display:block;color:var(--purple);font-size:14px;margin:15px 0}.close{position:absolute;top:10px;left:15px;background:none;border:0;font-size:28px;color:var(--muted)}dialog .secondary{margin-top:12px}#reset-status{font-size:14px}.move-car{animation:drive 2.3s ease-in-out both}.highlight-line{animation:pulse 1.2s ease-in-out 2}.enter{animation:appear .25s ease-out}@keyframes drive{to{transform:translateY(-310px)}}@keyframes pulse{50%{opacity:.25}}@keyframes appear{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}
@media(min-width:1400px){main{padding-top:45px}.intro{margin-bottom:36px}.question-head{padding-top:28px}.question-body{gap:26px}}
@media(max-width:1000px){.workspace{grid-template-columns:205px minmax(0,1fr);gap:19px}.question-body{grid-template-columns:1fr}.diagram svg{max-height:260px}.diagram{display:grid;place-items:center}.answers{grid-template-columns:1fr 1fr}.answers-label{grid-column:1/-1}.answer{font-size:14px}footer{margin-right:225px}}
@media(max-width:700px){.header{height:74px;padding:0 20px}.header-end{gap:8px}.country{display:none}.brand{font-size:28px}.brandmark{width:38px;height:41px;font-size:33px}main{padding:23px 16px 20px}.intro{margin-bottom:20px;align-items:start;gap:12px}h1{font-size:26px;letter-spacing:-.7px}.eyebrow{font-size:12px}.subtitle{font-size:14px;max-width:230px}.score-total{padding:8px 10px;gap:5px;flex-wrap:wrap;max-width:95px;justify-content:center}.score-total strong{font-size:20px}.score-total>span:last-child{font-size:11px}.score-total>span:first-child{font-size:21px}.workspace{display:flex;flex-direction:column;gap:17px}.sidebar{width:100%;padding:0}.sidebar>.section-label,.journey,.tiny-tip{display:none}#modes{display:flex;gap:7px}.mode{padding:11px 5px;justify-content:center;gap:5px;border:1px solid #e3e3ec;margin:0;border-radius:9px}.mode-icon{font-size:20px;width:22px}.mode strong{font-size:14px}.mode small,.mode-arrow{display:none}.lesson{width:100%;border-radius:14px}.lesson-top{padding:14px 18px;font-size:13px}.question-head{padding:20px 18px 15px}h2{font-size:23px}.question-head p{font-size:14px}.question-body{padding:0 18px 19px;gap:17px}.diagram svg{max-height:235px}.answers{grid-template-columns:1fr;gap:8px}.answer{min-height:50px;padding:10px 12px;font-size:15px}.feedback{margin:0 18px 18px;padding:16px}.feedback-footer{align-items:center}.primary{padding:11px 17px}.exercise-note{padding:0 18px 17px}.result{padding:30px 18px}.result h2{font-size:26px}footer{margin:20px 0 0;flex-wrap:wrap;justify-content:center;text-align:center;line-height:1.8}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
/* Controls shared by all four languages. */
button,select{touch-action:manipulation}select{font:inherit;border:1px solid #d8dbea;border-radius:8px;padding:8px;background:white;color:var(--navy);max-width:100%}button:disabled{opacity:.5}.language-label{display:flex;align-items:center;gap:8px}.settings-bar{display:flex;justify-content:space-between;gap:18px;align-items:center;padding:15px 18px;background:#eeecfa;border-radius:12px;margin-bottom:24px;font-size:14px}.settings-bar>div:first-child{display:grid;gap:4px}.settings-bar>div:first-child>span{color:#5d6277}.audio-settings{display:flex;gap:14px;align-items:center;flex-wrap:wrap}.audio-settings label{display:flex;gap:8px;align-items:center}#sound{min-width:145px;border-color:#bcb2e5;color:#433489}#sound[aria-pressed=false]{color:#596075;border-color:#d8dbea}.notice{background:#fff1d6;color:#604513;border-radius:9px;padding:12px 16px;font-size:14px;line-height:1.7}.notice[hidden]{display:none}.mode,.answer,.review-list{text-align:start}.mode strong{font-size:15px}.mode{min-height:62px}.question-head .tag,.exercise-note,.source-note,.diagram-caption,.diagram-bottom{font-size:14px}.question-head p,.feedback p{font-size:16px}.question-body.text-only{display:block}.question-body.text-only .answers{display:grid;grid-template-columns:1fr}.text-only .answer{font-size:16px;min-height:62px}.answer.selected{background:#eeeafb;border-color:#7963d7;box-shadow:inset 0 0 0 1px #7963d7}.answer.selected .letter{color:white;background:#6752cf}.exam-toolbar{display:flex;justify-content:space-between;gap:12px;align-items:center;padding:18px 28px;border-bottom:1px solid var(--line);background:#f8f9fc}.exam-toolbar strong{font-size:25px;display:inline-block;font-variant-numeric:tabular-nums;margin-inline-start:10px;color:var(--navy)}.exam-toolbar strong.urgent{color:#a82d20}.exam-controls{display:flex;justify-content:space-between;gap:10px;padding:0 28px 22px}.question-grid{display:grid;grid-template-columns:repeat(10,minmax(0,1fr));gap:7px;padding:0 28px 22px}.question-grid button{border:1px solid #d9ddea;background:#fff;border-radius:7px;min-height:40px;font-size:15px;position:relative;color:var(--navy)}.question-grid button.answered{background:#e9f4dc;border-color:#aed580}.question-grid button.current{outline:2px solid var(--purple);outline-offset:1px}.question-grid button.flagged,.flagged{border-color:#b28b28;background:#fff3d4}.question-grid small{position:absolute;inset-inline-end:1px;top:-3px;font-size:12px}.exam-submit{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:18px 28px;border-top:1px solid var(--line);font-size:14px}.result .exam-spec{font-size:20px;font-weight:700;color:var(--navy)}.result .source-note{font-size:14px;line-height:1.8;color:#676c80}.exam-intro .primary{margin:14px 0}.topic-results{text-align:start;display:grid;grid-template-columns:1fr 1fr;gap:15px;margin:20px auto;max-width:580px}.topic-results>div{border:1px solid var(--line);padding:14px;border-radius:10px;display:grid;grid-template-columns:1fr auto;gap:10px;font-size:15px}.topic-results .track{grid-column:1/-1}.review-questions{text-align:start;margin-top:32px}.review-questions details{border-top:1px solid var(--line);padding:15px 0;font-size:16px;line-height:1.8}.review-questions summary{cursor:pointer;font-weight:600}.review-questions summary>span:first-child{color:var(--purple)}.review-questions p{color:#555d74;font-size:15px}.trial-end{margin:28px auto 0;padding:20px;background:#f4f1fe;border-radius:12px;max-width:520px}.trial-end p{font-size:15px;line-height:1.8}footer{font-size:14px}footer button{font-size:14px}.journey p,.journey small,.section-label{font-size:14px}html[dir=ltr] footer{margin-left:270px;margin-right:0}html[dir=ltr] .close{left:auto;right:15px}html[dir=ltr] .diagram-caption{right:auto;left:14px}
@media(max-width:1000px){.settings-bar{align-items:start;flex-direction:column}.audio-settings{width:100%;justify-content:space-between}html[dir=ltr] footer{margin-left:225px}.question-grid{grid-template-columns:repeat(6,minmax(0,1fr))}}
@media(max-width:700px){.header{padding:0 15px;min-height:78px;height:auto}.brand{font-size:25px}.brand-sub{font-size:12px}.header-end{max-width:52%}.language-label select{max-width:130px}.settings-bar{margin-bottom:18px;padding:13px}.audio-settings{gap:10px;align-items:center}.audio-settings label{font-size:14px;flex-wrap:wrap}#sound{min-width:0;padding:10px}.audio-settings select{padding:6px}.score-total{display:none}#modes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px}.mode{min-height:53px;padding:9px 5px}.mode strong{font-size:14px;overflow-wrap:anywhere}.mode-icon{display:none}.exam-toolbar{padding:14px 18px;flex-wrap:wrap}.exam-toolbar strong{font-size:24px}.exam-controls{padding:0 18px 20px}.question-grid{padding:0 18px 20px;grid-template-columns:repeat(6,minmax(0,1fr));gap:7px}.question-grid button{min-height:41px}.exam-submit{padding:16px 18px;flex-wrap:wrap}.topic-results{grid-template-columns:1fr}.feedback-footer{flex-wrap:wrap}.result .exam-spec{font-size:18px}html[dir=ltr] footer{margin-left:0}.tiny-tip{display:none}.question-head p{font-size:16px}.question-body.text-only .answer{font-size:16px}.settings-bar>div:first-child>span{font-size:14px}.intro .eyebrow{font-size:14px}.subtitle{font-size:16px;max-width:none}dialog{max-height:90dvh;overflow:auto}}

.diagram .replay{position:absolute;bottom:10px;inset-inline-end:10px;background:#fff;color:#25243b;z-index:2;font-size:14px;padding:8px 12px}.diagram:has(.replay) .diagram-bottom{display:none}
/* Clear, colourful learning surface. */
:root{--navy:#172b4d;--purple:#4358de;--green:#b9ed59;--muted:#56667e;--line:#dce5f0;background:#eef5fb;color:#172b4d}body{background:linear-gradient(135deg,#eaf4ff 0%,#f4f9ff 55%,#e6f8f1 100%);min-height:100vh}.header{background:#fff;border-bottom:3px solid #dfeaf8;height:80px}.brandmark{background:#4054da;color:#fff;border-radius:15px;box-shadow:4px 4px 0 #b9ed59}.brand-sub{color:#536783;font-size:13px}.brand{color:#213455}.country{font-weight:600;color:#536783}.language-label{border:1px solid #d9e4f2;border-radius:12px;background:#f4f8fd;padding:2px 8px}.language-label select{border:0;background:transparent;font-weight:600}main{max-width:1320px;padding-top:26px}.intro{margin-bottom:22px;gap:20px}.intro .eyebrow{color:#287167;font-size:14px;letter-spacing:0;font-weight:800}.intro h1{font-size:36px;color:#172b4d;letter-spacing:-.7px}.subtitle{color:#56667e}.score-total{border:0;background:#fff3c9;border-radius:18px;color:#79520b;padding:14px 20px;box-shadow:0 4px 0 #efd894}.score-total strong{font-size:28px}.settings-bar{background:#fff;border:1px solid #dce6f3;border-radius:16px;box-shadow:0 4px 16px #25487805;padding:13px 18px;margin-bottom:22px}.settings-bar>div:first-child>strong{color:#217466;font-size:15px}.audio-settings .secondary{border:1px solid #cddaea;background:#f5f8fd;border-radius:11px;min-height:43px;font-weight:600}#sound[aria-pressed=true]{background:#e6f7ec;border-color:#97d5b3;color:#195b3c}#sound[aria-pressed=false]{background:#fff0e5;border-color:#edb38f;color:#81451f}.workspace{grid-template-columns:270px minmax(0,1fr);gap:26px}.sidebar>.section-label{font-size:16px;color:#233d60;font-weight:800;margin-bottom:12px}.mode{--mode-color:#4358de;--mode-soft:#eaf0ff;display:flex;gap:12px;background:white;border:2px solid transparent;border-radius:16px;min-height:86px;padding:15px 13px;margin-bottom:10px;text-align:start;color:#304866;box-shadow:0 4px 0 #dce7f2;transition:background .15s,border-color .15s}.mode[data-mode=signs]{--mode-color:#a65315;--mode-soft:#fff0d6}.mode[data-mode=practice]{--mode-color:#18766f;--mode-soft:#dff7ef}.mode[data-mode=exam]{--mode-color:#b63958;--mode-soft:#ffe7ef}.mode[data-mode=adaptive]{--mode-color:#7650b5;--mode-soft:#f0e8ff}.mode .mode-icon{display:grid;place-items:center;background:var(--mode-soft);color:var(--mode-color);height:44px;width:44px;flex:0 0 44px;border-radius:13px;font-size:27px;font-weight:700}.mode .mode-copy{min-width:0}.mode strong{color:#203652;font-size:16px;font-weight:800}.mode small{display:block;font-size:13px;line-height:1.5;color:#576a82;margin-top:3px}.mode:hover{background:var(--mode-soft);border-color:var(--mode-color)}.mode.active{background:var(--mode-soft);border-color:var(--mode-color);color:var(--mode-color);box-shadow:0 4px 0 color-mix(in srgb,var(--mode-color) 25%,white)}.mode.active .mode-icon{background:var(--mode-color);color:white}.mode.active strong{color:var(--mode-color)}.journey{background:#fff;border:1px solid #dde7f2;padding:18px;border-radius:16px;margin:22px 0 0}.journey-number strong{color:#4358de}.tiny-tip{margin:18px 4px;color:#52657c}.lesson{border:1px solid #cfdef0;border-radius:23px;box-shadow:0 9px 0 #dce7f3,0 22px 45px #1f426b08;overflow:hidden}.lesson-top{background:#203854;color:#fff;padding:17px 25px;font-size:16px}.lesson-top #count{color:#fff;background:#ffffff18;padding:5px 10px;border-radius:8px;letter-spacing:.5px;font-size:14px}.lesson-progress{height:7px;background:#e8edf5}.lesson-progress>div{background:#86d8b0}.question-head{padding:24px 28px 20px}.question-head .tag{display:inline-block;background:#eaf0ff;color:#3c51ba;padding:4px 10px;border-radius:7px;font-size:14px;margin-bottom:10px}.question-head h2{font-size:27px;letter-spacing:-.25px;font-weight:800}.question-head p{color:#56667e;font-size:16px}.question-body{gap:23px}.diagram{border:3px solid #d7e3f1;border-radius:17px;background:#17223d;box-shadow:0 5px 0 #e6edf6}.diagram-caption{background:#263b5b;border:0;color:#fff;font-size:14px;padding:5px 10px;z-index:1}.diagram-bottom{color:#e1e8f2}.answers{gap:12px}.answers-label{color:#354d6e;font-size:15px;font-weight:700;margin-bottom:3px}.answer{border:2px solid #d6e1ef;border-radius:14px;font-size:16px;min-height:66px;padding:13px;color:#233954;box-shadow:0 3px 0 #e8eef5;align-items:flex-start;gap:12px}.answer .letter{height:29px;width:29px;background:#edf2fb;color:#455bc0;border-radius:9px;font-size:15px;font-weight:800}.answer:not(:disabled):hover{background:#f0f4ff;border-color:#6073df;transform:none}.answer.correct{background:#e3f8e7;border-color:#5cba7c;box-shadow:0 3px 0 #c6e8d0;color:#165134}.answer.correct .letter{background:#23824d;color:#fff}.answer.wrong{background:#fff0e9;border-color:#dc936e;color:#783c20;box-shadow:0 3px 0 #f1d9cc}.answer.wrong .letter{background:#b85831;color:#fff}.answer:disabled:not(.correct):not(.wrong){opacity:.72}.feedback{background:#eef1ff;border:1px solid #d5ddff;border-inline-start:5px solid #6071d4;border-radius:15px;padding:20px;margin-top:2px}.feedback.good{background:#e9f9ef;border-color:#c6e9d4;border-inline-start-color:#279467}.feedback h3{font-size:20px;margin-bottom:10px;color:#223956}.feedback>strong{font-size:14px;color:#506682}.feedback p{font-size:16px;line-height:1.8;color:#2f4863}.feedback-footer{padding-top:4px;gap:12px}.primary{background:#4358de;color:#fff;border-radius:12px;border:0;border-bottom:4px solid #2b3fab;font-size:16px;min-height:48px;padding:12px 23px;font-weight:800;box-shadow:none}.primary:hover{background:#344aca}.secondary{border-radius:12px;font-size:15px;min-height:43px;padding:10px 15px;color:#2e4665}.feedback [data-speak],.review-questions [data-review-speak]{color:#254b9c;border-color:#adbee8;background:#fff;font-weight:700}.exercise-note{color:#5b6c81;font-size:14px}.result-emblem{background:#b9ed59;color:#234a24;box-shadow:0 6px 0 #8bc541}.result h2{color:#1f3857}.result-stats strong{color:#4056ca}.topic-results>div{background:#f4f8fd;border-color:#d8e4f1;border-radius:14px}.topic-results .track>div{background:#3b9c80}.exam-toolbar{background:#f0f5fc}.exam-toolbar .flagged{background:#fff0bc;border-color:#c79a29}.question-grid button{min-height:43px;border-radius:9px;border-width:2px}.question-grid button.current{outline-color:#4358de}.trial-end{background:#fff4d8;border:1px solid #ead498;border-radius:17px}.trial-end h3{color:#77511b}.replay{font-weight:700;box-shadow:0 3px 0 #aab7ca}.result-actions{gap:13px}footer{color:#506682;margin-inline-start:296px;margin-inline-end:0;padding-top:8px}footer button{color:#39598a}dialog{border:1px solid #cbd9ec;border-radius:22px;box-shadow:0 25px 100px #12284825}dialog h2{color:#203956}.close{font-size:30px;min-width:40px;min-height:40px}button:focus-visible,a:focus-visible,select:focus-visible{outline:3px solid #cf681b;outline-offset:3px}
@media(max-width:1050px){.workspace{grid-template-columns:230px minmax(0,1fr);gap:20px}.mode{padding:12px 10px;gap:9px}.mode .mode-icon{width:36px;flex-basis:36px;height:40px}.mode strong{font-size:15px}.mode small{font-size:13px}.settings-bar{flex-direction:row;align-items:center}.audio-settings{width:auto;justify-content:flex-start;gap:8px}.audio-settings label{font-size:13px}.question-body{grid-template-columns:1fr}.diagram svg{max-height:275px}.answers{grid-template-columns:1fr}.intro h1{font-size:32px}}
@media(max-width:700px){.header{min-height:72px;padding:10px 16px}.brand{font-size:25px}.brand-sub{font-size:12px}.brandmark{width:39px;height:42px}.language-label{padding:1px 4px}.language-label select{max-width:111px;font-size:14px}main{padding:21px 14px}.intro{margin-bottom:16px}.intro h1{font-size:28px;line-height:1.3}.intro .eyebrow{font-size:13px;margin-bottom:6px}.subtitle{font-size:15px}.settings-bar{display:flex;align-items:stretch;flex-direction:column;padding:12px;gap:10px;border-radius:14px;margin-bottom:18px}.settings-bar>div:first-child{display:flex;justify-content:space-between;align-items:center;gap:8px;flex-wrap:wrap}.settings-bar>div:first-child>strong{font-size:14px}.settings-bar>div:first-child>span{font-size:12px}.audio-settings{display:flex;gap:7px;justify-content:space-between;flex-wrap:wrap}.audio-settings label{font-size:13px;gap:5px}.audio-settings .secondary{min-height:40px;font-size:13px;padding:8px 10px}#sound{min-width:0}.audio-settings select{padding:5px}.workspace{display:flex;gap:17px}.sidebar>.section-label{display:block;font-size:16px;margin:0 2px 10px}#modes{display:flex;overflow-x:auto;scroll-snap-type:x proximity;gap:10px;padding:2px 2px 9px;scrollbar-width:thin;scrollbar-color:#9fb5d3 transparent}.mode{display:flex;flex-direction:row;justify-content:flex-start;flex:0 0 190px;min-height:83px;border-radius:14px;padding:12px;margin:0;scroll-snap-align:start;box-shadow:0 3px 0 #d5e2f0}.mode .mode-icon{display:grid;width:36px;flex-basis:36px;height:40px;font-size:23px;border-radius:10px}.mode strong{font-size:15px;overflow-wrap:normal}.mode small{display:block;font-size:12px;line-height:1.5}.lesson{border-radius:18px;box-shadow:0 6px 0 #dce7f3}.lesson-top{padding:13px 17px;font-size:15px}.lesson-top #count{font-size:13px;padding:4px 7px}.question-head{padding:20px 17px 15px}.question-head h2{font-size:24px}.question-head p{font-size:16px}.question-head .tag{font-size:13px;padding:3px 8px}.question-body{padding:0 17px 20px;gap:18px}.diagram svg{max-height:255px}.answer,.question-body.text-only .answer{font-size:16px;padding:12px;min-height:60px}.feedback{margin:0 17px 20px;padding:17px;border-radius:13px}.feedback h3{font-size:19px}.feedback-footer{display:grid;grid-template-columns:1fr 1fr}.feedback-footer .primary,.feedback-footer .secondary{padding:10px;font-size:15px;min-height:47px}.exercise-note{padding:0 17px 18px;font-size:13px}.result{padding:28px 17px}.result h2{font-size:26px}.result-stats{gap:28px}.result-stats strong{font-size:29px}.question-grid{gap:7px}.question-grid button{min-height:42px}.exam-submit{gap:13px}.intro .score-total{display:none}footer,html[dir=ltr] footer{margin:22px 0 0;padding:0;font-size:13px}footer button{font-size:13px}.diagram .replay{font-size:13px;padding:7px 10px;min-height:36px}.journey,.tiny-tip{display:none}}
@media(max-width:360px){.audio-settings label{width:100%;justify-content:flex-end}.intro h1{font-size:25px}.feedback-footer{grid-template-columns:1fr}.mode{flex-basis:175px}}

.nav-hint{display:none}@media(max-width:700px){.nav-hint{display:block;margin:5px 3px 0;font-size:13px;color:#536a86}.mode{flex-basis:180px}}

/* Navigation stays within thumb reach, including above the iPhone home indicator. */
body{padding-bottom:130px}.question-head h2{scroll-margin-top:20px}
.practice-controls,.exam-controls{position:fixed;z-index:20;bottom:0;left:50%;transform:translateX(-50%);width:min(880px,calc(100% - 28px));display:grid;grid-template-columns:1fr 1fr;gap:8px 16px;margin:0;padding:12px 18px calc(12px + env(safe-area-inset-bottom,0px));background:#fff;border:1px solid #c4d5e7;border-bottom:0;border-radius:18px 18px 0 0;box-shadow:0 -5px 25px #203f681a}
.practice-controls button,.exam-controls button{min-height:49px;font-size:17px}.practice-controls .primary,.exam-controls .primary{background:#245fc8}.navigation-feedback{grid-column:1/-1;font-size:14px;text-align:center;color:#5b657b;line-height:1.4}.navigation-feedback.good{color:#1b6b3b;font-weight:700}.official-image{margin:0;min-width:0;background:#fff;border:1px solid #d6e0ec;border-radius:14px;padding:12px;text-align:center}.official-image img{display:block;width:100%;height:auto;max-height:380px;object-fit:contain;min-height:130px}.official-image figcaption{font-size:11px;color:#667286;margin-top:8px}.review-questions .official-image{max-width:420px;margin:16px auto}.feedback-footer{display:flex}.feedback-footer [data-speak]{width:100%}
@media(max-width:700px){.practice-controls,.exam-controls{width:100%;border-radius:15px 15px 0 0;padding-inline:14px;gap:7px 10px}.navigation-feedback{font-size:13px}.official-image img{max-height:290px}.question-body .answers{grid-template-columns:1fr}}

.success-heading{display:flex;align-items:center;gap:15px;margin-bottom:16px}.success-heading .success-thumb{display:grid;place-items:center;flex:0 0 64px;height:64px;border-radius:19px;background:#cef08f;border:2px solid #8bc35d;font-size:37px;box-shadow:0 4px 0 #98ca6f;animation:thumb-welcome .45s ease-out}.feedback.good .success-heading h3{font-size:25px;color:#185d38;margin:0;line-height:1.35}.feedback.good{background:linear-gradient(120deg,#e4f8e6,#f3fde6);border-color:#9acb8a;border-inline-start:5px solid #389459}.feedback.good>strong{display:none}.feedback.good>p{color:#254e39;font-size:17px;line-height:1.75}@keyframes thumb-welcome{0%{transform:scale(.7) rotate(-14deg)}65%{transform:scale(1.12) rotate(5deg)}100%{transform:scale(1) rotate(0)}}@media(max-width:700px){.success-heading{gap:12px;margin-bottom:13px}.success-heading .success-thumb{flex-basis:53px;height:53px;font-size:31px;border-radius:16px}.feedback.good .success-heading h3{font-size:23px}.feedback.good>p{font-size:16px}}

/* Start with the activity; secondary audio controls are tucked into the lesson header. */
main{padding-top:20px}.lesson-top{gap:10px;flex-wrap:wrap}.lesson-tools{display:flex;align-items:center;gap:9px;margin-inline-start:auto}.lesson-tools #sound{min-width:40px;width:40px;height:40px;padding:6px;font-size:20px;border-color:#d6e0ed;background:#fff}.sound-menu{position:relative}.sound-menu summary{display:grid;place-items:center;list-style:none;width:40px;height:40px;border:1px solid #d6e0ed;border-radius:9px;background:#fff;cursor:pointer;font-size:22px;color:#4b607d}.sound-menu summary::-webkit-details-marker{display:none}.sound-menu summary:focus-visible{outline:3px solid #8b70ef;outline-offset:3px}.sound-menu[open] summary{background:#eaf1ff;border-color:#7a9cd1}.sound-menu .audio-settings{position:absolute;z-index:25;inset-inline-end:0;top:48px;width:260px;max-width:calc(100vw - 60px);padding:16px;display:flex;flex-direction:column;align-items:stretch;gap:14px;background:#fff;border:1px solid #cbd8e9;border-radius:12px;box-shadow:0 8px 25px #203f6829}.sound-menu .audio-settings label{justify-content:space-between;font-size:14px}.compact-score{white-space:nowrap;color:#64738a}@media(max-width:700px){main{padding-top:14px}.lesson-top{padding:10px 14px;font-size:14px}.lesson-tools{gap:6px}.lesson-top #count{letter-spacing:0}.lesson-tools #sound,.sound-menu summary{width:36px;min-width:36px;height:36px}.sidebar>.section-label{margin-bottom:7px}}

/* Audio preferences belong below the activity, never above the question. */
footer{align-items:center;flex-wrap:wrap}footer .lesson-tools{margin-inline-start:0}footer .sound-menu summary{display:flex;gap:7px;width:auto;padding:0 10px;font-size:14px;text-decoration:none;white-space:nowrap}footer .sound-menu .audio-settings{top:auto;bottom:48px;text-align:start}footer .audio-settings button{text-decoration:none;padding:10px;border:1px solid #dadce7;background:#fff;color:#263c59}footer #sound{text-decoration:none}

.turn-route{display:block;width:100%;height:auto;max-height:380px}.route-image{scroll-margin-block:20px}.route-answer{margin:12px 0 8px;color:#174e99;font-weight:700;font-size:16px}.route-image [data-route-replay]{min-height:42px}.route-image svg{overflow:visible}

.original-road-scene{margin:0;border:1px solid #d6e0ec;border-radius:14px;overflow:hidden;background:#eef5fa}.original-road-scene svg{display:block;width:100%;height:auto}.original-road-scene figcaption{font-size:12px;padding:9px 12px;color:#526982;text-align:center}.lesson-top button{min-height:40px;font-size:14px}button[hidden]{display:none!important}body.focus-mode{background:#fff}.focus-mode .header,.focus-mode .sidebar,.focus-mode footer{display:none}.focus-mode main{max-width:none;width:100%;padding:0}.focus-mode .workspace{display:block}.focus-mode .lesson{border:0;border-radius:0;box-shadow:none;min-height:calc(100dvh - 130px);overflow:visible}.focus-mode .lesson-top{position:sticky;top:0;z-index:26;padding:10px max(16px,calc((100vw - 1000px)/2));background:#f2f6fc;border-bottom:1px solid #d8e3ef}.focus-mode #exercise{max-width:1000px;margin:auto}.focus-mode .lesson-progress{max-width:1000px;margin:auto}.focus-mode .practice-controls,.focus-mode .exam-controls{width:min(1000px,100%)}.focus-mode #notice:not([hidden]){margin:0;border-radius:0}.focus-mode #exit-session{margin-inline-start:auto}.focus-mode .question-body{gap:24px}.focus-mode #focus-session{display:none}@media(max-width:700px){.focus-mode .lesson-top{font-size:13px;gap:8px}.focus-mode .lesson-top button{font-size:13px;padding:8px 11px}.focus-mode .question-head{padding-top:16px}.focus-mode .original-road-scene svg{max-height:235px}.focus-mode .question-body{gap:15px}}

.language-label{display:none!important}
.brandmark{width:68px;height:42px;background:#171c36;color:#c8f281;border-radius:11px;display:grid;place-items:center;font-size:22px;font-weight:900;white-space:nowrap}.journey-mode .header{height:70px}.journey-mode main{padding-top:12px}.journey-mode .intro{margin-bottom:14px}.journey-mode .question-head{padding-top:16px;padding-bottom:12px}.journey-mode .question-body{padding-bottom:14px}
.brandmark{width:68px;height:42px;background:#171c36;color:#c8f281;border-radius:11px;display:grid;place-items:center;font-size:22px;font-weight:900;white-space:nowrap}.journey-mode .header{height:70px}.journey-mode main{padding-top:12px}.journey-mode .intro{margin-bottom:14px}.journey-mode .question-head{padding-top:16px;padding-bottom:12px}.journey-mode .question-body{padding-bottom:14px}
.brandmark{gap:6px;padding:4px 9px 4px 6px}.brandmark-sign{display:grid;place-items:center;width:25px;height:25px;border-radius:7px;background:#fff;color:#1d55bd;font-size:18px;line-height:1;font-weight:900}