:root{--ink:#212226;--muted:#62636b;--paper:#f7f6f0;--card:#fffefa;--border:#e8e4df;--purple:#7957b4;--purple-pale:#eee8f8;--lime:#c7f273;--lime-dark:#284109;--reading:#fffefa;--shadow:0 17px 48px rgba(42,30,55,.065);--radius:19px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Aptos",-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;line-height:1.55;font-size:15.5px}button,input,select,textarea{font:inherit}button{cursor:pointer}a{color:inherit}button:disabled{opacity:.48;cursor:not-allowed}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--purple);outline-offset:4px}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.1;letter-spacing:-.045em}h1{font-size:clamp(2.9rem,7.5vw,6.4rem);font-weight:860}h2{font-size:clamp(2.1rem,5vw,3.6rem);font-weight:830}h3{font-size:1.34rem;font-weight:760}p{line-height:1.65}small,.muted{color:var(--muted)}.eyebrow{font-weight:750;text-transform:uppercase;letter-spacing:.155em;font-size:.73rem;color:#63616a}.italic-purple{color:var(--purple);font-style:italic;font-family:Georgia,serif;font-weight:600}.skip-link{position:absolute;top:-60px;left:14px;background:#fff;border:2px solid #000;padding:11px;z-index:999}.skip-link:focus{top:10px}.site-header{position:sticky;top:0;background:rgba(247,246,240,.97);z-index:50;border-bottom:1px solid rgba(65,56,75,.1);backdrop-filter:blur(12px)}.header-inner{max-width:1360px;margin:auto;min-height:79px;padding:10px 28px;display:flex;align-items:center;gap:23px}.wordmark{text-decoration:none;font-weight:920;font-size:1.65rem;letter-spacing:-.08em;white-space:nowrap}.wordmark span{color:var(--purple)}.course-pill{border:1px solid var(--border);border-radius:50px;padding:6px 11px;font-size:.62rem;white-space:nowrap;letter-spacing:.05em;color:#595862}.course-pill strong{color:var(--ink);margin-left:3px}.desktop-nav{display:flex;gap:clamp(12px,1.8vw,28px);align-items:center;margin-left:auto}.desktop-nav a{text-decoration:none;font-size:.86rem;font-weight:640;color:#595661;white-space:nowrap}.desktop-nav a.active,.desktop-nav a:hover{color:var(--purple)}.header-actions{display:flex;gap:10px}.colours-button,.menu-toggle{background:#fff;border:1px solid #ddd5e5;border-radius:999px;padding:8px 14px;font-size:.85rem;font-weight:650;white-space:nowrap}.colours-button span{font-size:1.18rem;margin-right:5px}.menu-toggle{display:none;width:42px;height:40px;flex-direction:column;justify-content:center;align-items:center;gap:5px}.menu-toggle span{height:2px;width:20px;background:var(--ink)}.mobile-nav{display:flex;flex-direction:column;padding:7px 22px 21px;gap:5px;border-top:1px solid var(--border)}.mobile-nav[hidden]{display:none}.mobile-nav a{padding:10px 8px;text-decoration:none;font-weight:680;border-bottom:1px solid var(--border)}.colours-panel{position:absolute;right:max(18px,calc((100vw - 1340px)/2));top:72px;width:min(355px,calc(100vw - 36px));border:1px solid #dcd2e5;border-radius:20px;background:#fff;box-shadow:0 30px 60px rgba(30,20,40,.16);padding:20px;z-index:60}.colours-panel[hidden]{display:none}.colours-panel p{font-size:.8rem;color:#66616a}.panel-head{display:flex;justify-content:space-between;align-items:center}.panel-head button{background:transparent;border:0;font-size:1.55rem}.colour-swatches{display:grid;grid-template-columns:repeat(4,1fr);gap:9px}.swatch{display:flex;flex-direction:column;gap:5px;align-items:center;background:transparent;border:1px solid transparent;border-radius:9px;padding:5px 2px;font-size:.65rem;color:#4a4850}.swatch.selected{border-color:#8458c3}.swatch-circle{width:31px;height:31px;border:1px solid rgba(0,0,0,.12);border-radius:50%}.custom-colour-label{display:flex;justify-content:space-between;align-items:center;margin-top:16px;font-size:.83rem}.custom-colour-label input{height:33px;width:53px;border:1px solid var(--border)}.small-link{border:0;background:transparent;text-decoration:underline;color:var(--purple);padding:9px 0}.save-notice{position:fixed;bottom:22px;right:22px;background:var(--ink);color:white;padding:10px 16px;border-radius:12px;box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:opacity .2s;z-index:120;font-size:.85rem}.save-notice.show{opacity:1}.main-container{max-width:1260px;margin:0 auto;padding:38px 28px 70px;min-height:58vh}.hero{display:grid;grid-template-columns:1.18fr .82fr;gap:35px;align-items:center;padding:35px 0 50px;min-height:490px}.hero h1{margin:15px 0 21px}.hero-desc{font-size:1.08rem;max-width:540px;color:#5b5a64}.hero-actions,.button-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:25px}.btn{appearance:none;display:inline-flex;align-items:center;justify-content:center;gap:9px;text-decoration:none;border:1px solid transparent;border-radius:13px;padding:13px 19px;font-weight:750;line-height:1.25;min-height:47px;text-align:center;transition:transform .16s,background .16s}.btn:hover:not(:disabled){transform:translateY(-2px)}.btn-lime{background:var(--lime);color:#203309;border-color:var(--lime)}.btn-dark{background:var(--ink);color:white}.btn-outline{background:transparent;border-color:#c5bbc9;color:var(--ink)}.btn-purple{background:var(--purple);color:#fff}.btn-small{font-size:.83rem;padding:9px 12px;min-height:37px}.inline-link{color:var(--purple);font-weight:710;text-decoration:none;border-bottom:1px solid currentColor}.hero-visual{min-height:385px;position:relative;display:flex;align-items:center;justify-content:center}.hero-orbit{position:absolute;width:330px;height:330px;border-radius:50%;background:#eae2f5;top:12px;right:35px}.hero-orbit::after{content:'';position:absolute;width:110px;height:110px;border-radius:50%;background:var(--lime);top:-18px;right:-18px}.hero-stack{width:min(350px,88%);position:relative;transform:rotate(-7deg);box-shadow:0 27px 60px rgba(47,33,64,.13);border-radius:20px;overflow:hidden}.hero-top{background:#27282b;color:#f7f5f1;padding:23px 28px}.hero-top small{font-size:.7rem;color:#c6c6c3}.hero-top h3{margin:6px 0 4px;font-size:2rem}.hero-bottom{background:#fffefa;padding:22px 27px}.mini-chart{display:flex;align-items:flex-end;height:105px;gap:8px;margin:10px 0 16px}.mini-chart span{width:14%;border-radius:6px 6px 0 0;background:#a98ad1}.mini-chart span:nth-child(2n){background:var(--lime)}.hero-stamp{position:absolute;bottom:12px;right:0;background:var(--lime);padding:20px 18px;font-size:1rem;font-weight:820;transform:rotate(9deg);box-shadow:0 15px 28px #0001}.hero-star{position:absolute;left:5%;top:14%;font-size:3.7rem;color:var(--purple);transform:rotate(24deg)}.stat-strip{display:flex;flex-wrap:wrap;gap:10px;border-top:1px solid var(--border);padding:19px 0 4px}.stat-chip{display:flex;gap:10px;align-items:center;color:#65606b;font-size:.85rem;margin-right:18px}.stat-chip strong{color:var(--ink)}.icon-circle{display:inline-grid;place-items:center;width:44px;height:44px;border-radius:13px;background:#eee8f8;font-size:1.35rem}.feature-hero{background:#fffefa;border:1px solid var(--border);padding:29px 32px;border-radius:24px;box-shadow:var(--shadow);display:grid;grid-template-columns:1fr auto;gap:20px;align-items:center;margin:28px 0}.feature-hero h2{font-size:clamp(2rem,4vw,3.5rem);margin:8px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin:55px 0 18px}.section-head h2{margin:5px 0}.section-head p{margin:0;color:var(--muted)}.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px}.card-grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}.feature-card,.panel,.topic-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:23px;box-shadow:var(--shadow)}.feature-card h3,.topic-card h3{margin:16px 0 8px}.feature-card p,.topic-card p{color:#65616c;font-size:.88rem;line-height:1.55}.feature-card .card-link,.topic-card .card-link{font-weight:750;text-decoration:none;color:var(--purple);display:inline-flex;gap:8px;margin-top:10px;font-size:.88rem}.feature-card.primary{background:#2b2b30;color:#fff}.feature-card.primary p{color:#e0dde3}.feature-card.primary .card-link{color:var(--lime)}.feature-card .card-icon{font-size:1.8rem}.arcade-strip{border:1px solid var(--border);background:#faf9f6;border-radius:16px;padding:19px 23px;display:flex;align-items:center;justify-content:space-between;gap:18px;margin-top:22px}.arcade-strip p{margin:0;color:var(--muted);font-size:.84rem}.arcade-strip h3{margin:0 0 5px;font-size:1.1rem}.page-hero{padding:25px 0 24px;max-width:820px}.page-hero h1{font-size:clamp(2.4rem,6vw,4.9rem);margin:9px 0 16px}.page-hero p{font-size:1.02rem;color:var(--muted)}.layout-2{display:grid;grid-template-columns:1.15fr .85fr;gap:22px}.layout-sidebar{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:23px}.panel{padding:26px}.panel h3{margin:0 0 11px}.panel.reading,.reading-card{background:var(--reading)}.subtle-panel{background:#f0edf0;border:1px solid #e5e0e6;border-radius:15px;padding:19px}.lime-panel{background:#ebf7d6;border:1px solid #d1e8a7;border-radius:16px;padding:18px}.purple-panel{background:#f0eafa;border:1px solid #ddd0ef;border-radius:16px;padding:18px}.mini-label{font-size:.72rem;letter-spacing:.11em;text-transform:uppercase;font-weight:830;color:#766b80}.metric-row{display:flex;gap:13px;flex-wrap:wrap}.metric{flex:1;min-width:125px;background:#f6f4f2;border:1px solid #eee9e4;border-radius:15px;padding:17px}.metric strong{font-size:1.85rem;letter-spacing:-.06em;line-height:1.2;display:block}.metric span{font-size:.79rem;color:var(--muted)}.progress-track{height:9px;background:#e8e3ec;border-radius:99px;overflow:hidden}.progress-fill{height:100%;background:#9575c8;border-radius:99px;transition:width .3s}.topic-meter{margin:15px 0}.topic-meter-head{display:flex;justify-content:space-between;gap:12px;margin-bottom:6px;font-size:.89rem;font-weight:680}.topic-meter-head span:last-child{font-weight:500;color:var(--muted)}.topic-meter .progress-fill{background:#9277c0}.skill-card{border:1px solid #e1dce4;background:var(--reading);border-radius:15px;padding:19px;margin-top:14px}.skill-card h3{font-size:1.06rem;margin:0 0 7px}.skill-card p{font-size:.89rem;color:#56535b;margin:0}.tag{font-size:.68rem;letter-spacing:.03em;font-weight:750;padding:5px 9px;white-space:nowrap;border-radius:99px;background:#eee8f7;color:#4d3576;display:inline-block}.tag.lime{background:#e7f5cf;color:#354718}.tag.neutral{background:#efedef;color:#635b65}.tag.orange{background:#faeed8;color:#765520}.question-card{background:var(--reading);border:1px solid #e7dfeb;border-radius:22px;padding:27px}.question-prompt{font-weight:740;font-size:clamp(1.13rem,2.2vw,1.5rem);line-height:1.48;letter-spacing:-.015em;margin:17px 0 23px}.options{display:grid;gap:11px}.option{display:flex;gap:13px;align-items:flex-start;padding:15px;border:1.4px solid #d5d2d9;border-radius:13px;background:transparent;cursor:pointer;position:relative}.option:hover{border-color:#9b7cc5}.option:has(input:checked){border-color:#7957b4;background:#f0e8fa}.option input{accent-color:#7957b4;margin-top:4px}.option .letter{width:28px;height:28px;background:#eae6ef;border-radius:9px;display:grid;place-items:center;flex:none;font-size:.78rem;font-weight:850}.option .option-text{flex:1;line-height:1.48;font-size:.9rem}.option.correct{background:#ebf7df;border-color:#97c069}.option.wrong{background:#faecec;border-color:#ce9999}.option.correct .letter{background:#badf91}.option.wrong .letter{background:#efb1b1}.quiz-footer{margin-top:22px;display:flex;justify-content:space-between;align-items:center;gap:12px}.progress-caption{font-size:.79rem;color:var(--muted)}.input-label{font-size:.85rem;font-weight:720;display:block;margin-bottom:7px}.field,select.field,textarea.field{border:1.5px solid #d7d1dd;border-radius:12px;background:#fff;color:var(--ink);width:100%;padding:12px 13px;min-height:45px}.field:focus{border-color:var(--purple)}textarea.field{min-height:125px;resize:vertical}.form-row{margin:0 0 17px}.form-hint{font-size:.77rem;color:#706a76;margin-top:5px}.weekday-picker{display:flex;gap:8px;flex-wrap:wrap}.weekday-picker label{border:1px solid #d8d1df;background:#fff;border-radius:10px;padding:9px 10px;min-width:52px;text-align:center;cursor:pointer}.weekday-picker label:has(input:checked){background:#e9e0f7;border-color:#7957b4}.weekday-picker input{accent-color:var(--purple)}.plan-list{display:grid;gap:9px}.plan-row{display:flex;align-items:center;gap:13px;border:1px solid var(--border);border-radius:14px;background:var(--card);padding:14px 17px;text-decoration:none;min-height:67px}.plan-row:hover{border-color:#bca4df}.plan-index{width:34px;height:34px;background:#f0eaf7;border-radius:10px;display:grid;place-items:center;font-size:.83rem;font-weight:750;flex:none}.plan-row.done .plan-index{background:#e5f3d2}.plan-row-title{flex:1;min-width:0}.plan-row-title strong{display:block;font-size:.88rem}.plan-row-title small{font-size:.75rem}.plan-row .right-arrow{font-size:1.35rem;color:var(--purple)}.step-strip{display:flex;gap:7px;margin:15px 0 23px;flex-wrap:wrap}.step-pill{font-size:.72rem;padding:7px 10px;border-radius:10px;border:1px solid var(--border);background:#f4f1f4;font-weight:750}.step-pill.active{background:#eee6f9;border-color:#7957b4;color:#5f438e}.step-pill.done{background:#e7f4d8;border-color:#c3d9a3;color:#42612e}.two-col-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}.note{padding:15px;background:#f3f0f6;border-radius:11px;font-size:.87rem}.note strong{display:block;margin-bottom:5px}.callout{border-left:4px solid #9374c6;padding:13px 16px;background:#f3edf9;border-radius:0 12px 12px 0;margin:15px 0}.callout.error{border-color:#b98973;background:#fbefea}.callout.success{border-color:#8eae4c;background:#ecf6dd}.checks{display:grid;gap:10px;margin:12px 0}.checks label{display:flex;gap:10px;align-items:flex-start;font-size:.88rem;cursor:pointer}.checks input{accent-color:#7b59b1;margin-top:4px}.divider{height:1px;background:var(--border);margin:22px 0}.lesson-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.lesson-list a{text-decoration:none;padding:13px 15px;border-radius:12px;border:1px solid #e5dce9;background:var(--reading);font-weight:650;font-size:.84rem}.lesson-list a:hover{border-color:#9b7cc5}.badge-star{color:#ae7f08;font-size:1.9rem;letter-spacing:3px}.reward-hero{text-align:center;padding:25px 15px}.reward-hero .reward-icon{font-size:3.4rem}.reward-hero h2{margin:10px 0}.case-story{border-left:5px solid #9e7cc6;background:var(--reading);padding:23px;border-radius:0 15px 15px 0;line-height:1.78}.flashcards{perspective:900px}.flash{border:2px solid #d7c8e6;background:var(--reading);border-radius:19px;padding:24px;min-height:190px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;cursor:pointer;gap:10px}.flash strong{font-size:1.28rem}.flash small{font-size:.77rem}.classroom-link{display:inline-flex;align-items:center;gap:8px;text-decoration:none;font-size:.77rem;font-weight:700;color:#5e4b74;border:1px solid #d9cbec;padding:8px 11px;border-radius:10px;margin-top:7px}.classroom-link:hover{background:#f2eafa}.error-msg{color:#a12828;font-weight:650}.success-msg{color:#325b1a;font-weight:650}.reading-text{background:var(--reading);border:1px solid #e6e0e6;border-radius:15px;padding:18px}.reading-text p:last-child{margin-bottom:0}.weekbar{display:grid;grid-template-columns:repeat(7,1fr);gap:7px}.weekdot{border-radius:10px;background:#efedef;border:1px solid #dfdae2;text-align:center;padding:10px 2px;font-size:.7rem}.weekdot.done{background:#d9edb5;border-color:#b6d37a}.weekdot strong{display:block;font-size:1rem}.chart-label{font-size:.73rem;color:var(--muted)}.mini-table{width:100%;border-collapse:collapse;font-size:.83rem}.mini-table td,.mini-table th{padding:10px 8px;border-bottom:1px solid var(--border);text-align:left}.site-footer{background:#eae7e4;border-top:1px solid #e1dce0;margin-top:25px}.footer-inner{max-width:1260px;margin:auto;padding:36px 28px;display:grid;grid-template-columns:2fr 1fr;gap:35px}.footer-mark{font-size:1.8rem}.footer-inner p{font-size:.9rem;margin:10px 0}.footer-inner .footer-small{color:#6f6b72;font-size:.76rem;max-width:660px}.footer-links{display:grid;gap:7px;align-content:start}.footer-links a{font-size:.83rem;color:#55515b;text-decoration:none}.footer-links a:hover{color:var(--purple)}.footer-bottom{padding:15px 28px;text-align:center;border-top:1px solid #ddd8d8;font-size:.73rem;color:#6b686c}.loading-text{padding:80px 0;color:var(--muted)}.mini-actions{display:flex;gap:9px;align-items:center;flex-wrap:wrap}.graph-wrap{max-width:480px;overflow-x:auto}.graph-wrap svg{width:100%;min-width:300px;height:auto}.two-actions{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}.tiny{font-size:.76rem}.toolbar{display:flex;flex-wrap:wrap;gap:9px;margin:10px 0 20px}.toolbar a{border:1px solid var(--border);border-radius:10px;padding:8px 10px;text-decoration:none;font-weight:680;font-size:.79rem}.toolbar a.active{background:#eee6f9;border-color:var(--purple)}.pill-list{display:flex;flex-wrap:wrap;gap:8px}.pill-list span{font-size:.77rem;padding:6px 9px;background:#f0ecf4;border-radius:8px}.subhead{font-size:1.08rem;margin:26px 0 9px}.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:1120px){.desktop-nav{gap:12px}.desktop-nav a{font-size:.8rem}.course-pill{display:none}.header-inner{padding:10px 20px}.card-grid.four{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:930px){.desktop-nav{display:none}.menu-toggle{display:flex}.header-actions{margin-left:auto}.hero{grid-template-columns:1fr 1fr;gap:10px}.hero-orbit{right:0;width:280px;height:280px}.layout-sidebar{grid-template-columns:1fr}.layout-2{grid-template-columns:1fr}.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:640px){body{font-size:15px}.header-inner{min-height:66px;padding:9px 16px}.wordmark{font-size:1.52rem}.colours-button{font-size:.77rem;padding:7px 10px}.main-container{padding:19px 17px 45px}.hero{display:flex;flex-direction:column;align-items:stretch;gap:10px;min-height:auto;padding:15px 0 25px}.hero h1{font-size:clamp(3rem,12.5vw,4.4rem)}.hero-desc{font-size:1rem}.hero-visual{height:305px;min-height:305px;margin-top:28px}.hero-orbit{width:240px;height:240px;top:12px;right:12%}.hero-stack{width:265px}.hero-stamp{right:6%;bottom:7px;font-size:.8rem}.hero-star{left:1%;top:6%}.stat-strip{gap:11px}.stat-chip{margin-right:7px}.feature-hero{grid-template-columns:1fr;padding:23px;margin:18px 0}.feature-hero .btn{width:100%}.section-head{display:block;margin:38px 0 16px}.card-grid,.card-grid.four,.lesson-list{grid-template-columns:1fr}.feature-card,.panel,.topic-card{padding:20px}.question-card{padding:19px}.page-hero{padding:14px 0}.page-hero h1{font-size:clamp(2.5rem,11vw,3.6rem)}.arcade-strip{align-items:start;flex-direction:column}.metric{min-width:95px;padding:12px}.metric strong{font-size:1.35rem}.two-col-list{grid-template-columns:1fr}.quiz-footer{align-items:stretch;flex-direction:column}.quiz-footer .btn{width:100%}.footer-inner{grid-template-columns:1fr;padding:32px 20px;gap:17px}.button-row .btn{flex:1}.mini-actions .btn{flex:1}.hero-actions .btn{flex:1}.weekday-picker label{min-width:43px}.step-strip{gap:5px}.step-pill{font-size:.67rem}.colours-panel{top:64px;right:10px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
/* V2 teaching and exam-style application layouts */
.teach-steps{padding-left:23px;display:grid;gap:11px;margin:16px 0 22px}.teach-steps li{padding-left:6px;line-height:1.65}.teach-steps strong{color:#5f438e}.formula-card{background:var(--reading);border:1px solid #b7a7ce;border-radius:13px;padding:15px 17px;margin:15px 0}.formula-card strong{font-size:.82rem}.formula-eq{font-size:clamp(.88rem,1.6vw,1.02rem);font-weight:720;line-height:1.5;padding-top:7px;overflow-wrap:anywhere}.answer-strip{padding:13px 17px;background:#e9f4d6;border-radius:11px;border:1px solid #bdd59e;font-size:.94rem}.learning-details{margin-top:15px;border:1px solid var(--border);border-radius:11px;padding:13px 15px;background:var(--reading)}.learning-details summary{font-weight:720;cursor:pointer;color:#58457c}.learning-details p{margin:12px 0 0}.calculation-progress{display:flex;gap:7px;margin:12px 0 20px}.calc-dot{height:7px;flex:1;border-radius:5px;background:#dfd9e6}.calc-dot.complete{background:#9db969}.calc-dot.current{background:#8062b2}.case-exhibit{border:1px solid #e5dce9;border-radius:13px;padding:18px 20px;margin:14px 0;background:var(--reading)}.case-exhibit p{font-size:.95rem;margin:6px 0 0;line-height:1.75}.exam-panel{border-top:5px solid #7957b4}.row-between{display:flex;align-items:center;justify-content:space-between;gap:9px;flex-wrap:wrap}.exam-question{background:#fff;border:1.5px solid #c8bbd7;border-radius:15px;padding:20px;margin:18px 0 23px;color:#202124}.exam-question strong{font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;color:#675182}.exam-question p{font-size:1.04rem;font-weight:660;line-height:1.62;margin:10px 0 16px}.exam-options{display:flex;gap:9px;flex-wrap:wrap}.exam-options span{display:inline-block;border-radius:9px;padding:7px 10px;background:#f3f0f7;font-size:.78rem;font-weight:650}.extended-answer{min-height:250px!important;line-height:1.62}.band-guidance{margin:20px 0;padding:18px;background:var(--reading);border-radius:13px;border:1px solid #ded6e6}.band-guidance h4{margin:0 0 10px}.band-guidance p{font-size:.83rem;margin:8px 0}.graph-wrap{max-width:100%;margin:18px 0}.graph-wrap svg{width:100%;max-width:650px}.graph-wrap figcaption{margin:5px 0 0}.exam-panel .checks{gap:12px}.exam-panel .checks label{line-height:1.45}
@media(max-width:640px){.case-exhibit{padding:14px}.exam-question{padding:15px}.case-exhibit p{font-size:.91rem}.exam-panel .tag{white-space:normal}.row-between{align-items:flex-start}.formula-eq{font-size:.85rem}}

/* R067 v2.1 — prominent diagnostic progress indicator. */
.diagnostic-progress{background:var(--card);border:1px solid var(--border);border-radius:15px;padding:16px 17px;margin-bottom:16px}
.diagnostic-progress-head{display:flex;justify-content:space-between;gap:12px;align-items:baseline;font-size:.87rem;margin-bottom:12px;flex-wrap:wrap}
.diagnostic-progress-head strong{font-weight:800}
.diagnostic-progress-head span{color:var(--muted);font-variant-numeric:tabular-nums}
.diagnostic-progress-track{height:13px;background:#e8e1ee}
.diagnostic-progress .progress-fill{background:#8962bd;transition:width .22s ease}
.diagnostic-progress .progress-caption{margin:.6rem 0 0;font-size:.77rem}
@media (prefers-reduced-motion:reduce){.diagnostic-progress .progress-fill{transition:none}}