@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@400;500;600;700;800&display=swap');
:root{--ink:#112b2b;--sub:#59706d;--lime:#d6fa70;--line:#dce5e1;--paper:#f4f7f5;--orange:#f9b28e;--radius:18px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:#fff;color:var(--ink);font-family:'DM Sans',sans-serif;font-size:16px;line-height:1.6}button,input,select{font:inherit}a{color:inherit}button,a,select,input{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}a{text-underline-offset:4px}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #158477;outline-offset:4px}.skip{position:absolute;left:16px;top:-60px;background:var(--lime);padding:12px;z-index:10}.skip:focus{top:10px}.header{max-width:1320px;margin:auto;padding:28px 48px;display:flex;align-items:center;justify-content:space-between;gap:28px;border-bottom:1px solid var(--line)}.brand{font-family:Manrope,sans-serif;font-size:24px;font-weight:800;letter-spacing:-1px;display:flex;align-items:center;text-decoration:none;white-space:nowrap}.brand>span:not(.brandmark){font-weight:500}.brand small{font-size:14px;font-weight:500;letter-spacing:0;align-self:flex-end;margin-bottom:5px;color:var(--sub)}.brandmark{display:flex;gap:3px;align-items:flex-end;margin-right:11px;width:27px;height:25px}.brandmark i{width:7px;background:var(--ink);border-radius:2px}.brandmark i:nth-child(1){height:10px}.brandmark i:nth-child(2){height:17px}.brandmark i:nth-child(3){height:24px}nav{display:flex;gap:28px;font-size:14px;font-weight:600}nav a{text-decoration:none;padding:8px 0}nav .active{border-bottom:2px solid var(--ink)}main{max-width:1320px;margin:auto}.workspace{padding:54px 48px 30px}.eyebrow{font-size:12px;font-weight:700;letter-spacing:1.8px;margin-bottom:14px}.intro h1{font-family:Manrope,sans-serif;font-size:clamp(36px,4vw,52px);line-height:1.13;letter-spacing:-2px;margin:0 0 18px;font-weight:800}.intro h1 span{color:#43877c}.intro p{color:var(--sub);margin:0 0 34px;font-size:17px}.calculator-grid{display:grid;grid-template-columns:1.45fr 1fr;gap:24px;align-items:stretch}.form-card{padding:28px;border:1px solid var(--line);border-radius:var(--radius);background:white}.card-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:24px}h2,h3{font-family:Manrope,sans-serif;line-height:1.3}.card-heading h2{font-size:20px;margin:0;font-weight:800}.session{font-size:12px;border:1px solid var(--line);border-radius:20px;padding:5px 10px;white-space:nowrap;color:var(--sub)}.fields{display:grid;grid-template-columns:1fr 1fr;gap:16px 20px}label{display:block;font-size:14px;font-weight:600}select{display:block;width:100%;height:48px;padding:0 12px;margin-top:6px;border:1px solid #cbd7d1;border-radius:8px;color:var(--ink);background:#fff;font-size:15px}select:disabled{background:var(--paper);color:var(--sub)}.marks-heading{display:flex;align-items:center;justify-content:space-between;margin-top:24px}.marks-heading h3{font-size:16px;margin:0}.text-button{border:0;background:transparent;color:var(--sub);font-size:13px;text-decoration:underline;text-underline-offset:3px;padding:6px}.helper{font-size:13px;color:var(--sub);margin:7px 0 17px}.marks{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.marks.single{grid-template-columns:1fr}.mark-input{display:flex;align-items:center;border:1px solid #cbd7d1;border-radius:8px;margin-top:6px;height:56px;overflow:hidden}.mark-input input{width:100%;min-width:0;padding:8px 4px 8px 12px;border:0;background:transparent;font-family:Manrope,sans-serif;font-size:22px;font-weight:700;color:var(--ink);appearance:textfield;-moz-appearance:textfield}.mark-input input::-webkit-inner-spin-button{appearance:none}.mark-input input:focus-visible{outline-offset:-4px}.mark-input span{color:var(--sub);font-size:13px;white-space:nowrap;padding-right:10px}.form-bottom{display:flex;align-items:center;justify-content:space-between;margin-top:24px;gap:16px}.form-bottom>span{font-size:12px;color:var(--sub)}.primary{background:var(--lime);border:0;color:var(--ink);border-radius:8px;padding:13px 20px;font-size:14px;font-weight:700}.primary:hover{background:#c4ee52}.result-card{background:var(--ink);color:white;border-radius:var(--radius);padding:28px 30px;display:flex;flex-direction:column}.result-top{display:flex;justify-content:space-between;gap:8px;font-size:11px;font-weight:600;letter-spacing:1px}.result-top span:last-child{color:#aac0bc;letter-spacing:0;font-weight:400;font-size:12px}.grade-main{display:flex;align-items:center;gap:32px;margin-top:12px;min-height:165px}.grade-main strong{font-family:Manrope,sans-serif;font-size:120px;line-height:1.2;font-weight:800;letter-spacing:-6px;color:var(--lime)}.grade-main strong.double-grade{font-size:78px;letter-spacing:-4px}.result-percent{font-family:Manrope,sans-serif;font-size:29px;font-weight:600;line-height:1.3}.muted{color:#b9cbc7;font-size:14px}.result-divider{height:1px;background:#38514d;margin:0 0 24px}.target-result{display:flex;gap:13px}.target-icon{font-size:28px;color:var(--lime);line-height:1.1}.target-result h3{font-size:18px;margin:0 0 5px}.target-result p{color:#b9cbc7;font-size:14px;margin:0}.meter{margin-top:24px;position:relative;background:#38514d;height:8px;border-radius:8px}.meter>div{height:100%;background:var(--lime);border-radius:8px;transition:width .2s}.meter>span{position:absolute;width:3px;height:18px;top:-5px;background:var(--orange)}.meter-label{display:flex;justify-content:space-between;margin-top:8px;font-size:12px;color:#b9cbc7}.result-note{font-size:12px;color:#b9cbc7;margin:25px 0 0}.context-strip{display:flex;align-items:center;gap:13px;padding:20px 0 0;color:var(--sub);font-size:13px}.context-strip p{margin:0;flex:1;max-width:830px}.context-strip strong{color:var(--ink)}.context-symbol{border:1px solid #91a6a0;border-radius:50%;width:20px;height:20px;flex:none;text-align:center;font-weight:700;line-height:19px}.context-strip a{margin-left:auto;white-space:nowrap}.section{padding:48px}.section-top{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:25px}.section-top h2,.guide-intro h2,.faq-section h2{font-size:32px;font-weight:800;letter-spacing:-1px;margin:0 0 10px}.section-top p{color:var(--sub);margin:0;font-size:15px}.outline-link{padding:10px 17px;border:1px solid var(--line);border-radius:8px;text-decoration:none;font-size:14px;font-weight:600;white-space:nowrap}.table-wrap{border:1px solid var(--line);border-radius:12px;overflow-x:auto}table{border-collapse:collapse;width:100%;text-align:left;white-space:nowrap;font-size:14px}th,td{padding:15px 22px;border-bottom:1px solid var(--line)}thead{color:var(--sub);background:var(--paper);font-size:12px}thead th{font-weight:600}tbody th{font-size:18px;width:28%}tbody tr:last-child>*{border-bottom:0}.target-row{background:#f4fadf}.current-row{background:#eaf4f1}.badge{font-family:'DM Sans',sans-serif;font-size:11px;font-weight:500;display:inline-block;vertical-align:middle;margin-left:10px;background:#dfedb5;border-radius:20px;padding:3px 10px}.current-row .badge{background:#d1e8df}.guide-section{background:var(--paper);display:grid;grid-template-columns:1fr 2fr;gap:50px;border-radius:var(--radius);margin:0 48px;padding:36px}.guide-intro h2{margin-top:0}.guide-intro p{color:var(--sub);font-size:14px}.guide-intro a{font-size:13px;font-weight:600}.guide-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;padding-top:10px}.grade-chip{display:inline-grid;place-items:center;width:48px;height:48px;background:var(--lime);border-radius:50%;font-family:Manrope,sans-serif;font-weight:800;font-size:24px}.guide-cards article:nth-child(2) .grade-chip{background:#b5dfd4}.guide-cards article:nth-child(3) .grade-chip{background:var(--orange)}.guide-cards h3{font-size:16px;margin:18px 0 10px}.guide-cards p{font-size:14px;color:var(--sub);margin:0}.faq-section{display:grid;grid-template-columns:1fr 1.5fr;gap:70px;padding-top:70px;padding-bottom:65px}.faq-section h2{max-width:330px}.faqs details{border-bottom:1px solid var(--line);padding:16px 0}.faqs details:first-child{padding-top:0}.faqs summary{cursor:pointer;font-weight:600;font-size:15px}.faqs p{font-size:14px;color:var(--sub)}.source-section{border-top:1px solid var(--line);padding:32px 48px;display:flex;gap:50px;justify-content:space-between;align-items:center}.source-section h2{font-size:16px;margin:0 0 5px}.source-section p{font-size:12px;max-width:550px;color:var(--sub);margin:0}.source-links{display:flex;gap:18px;font-size:13px;flex-wrap:wrap}footer{max-width:1320px;margin:auto;padding:26px 48px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:20px;color:var(--sub);font-size:12px}.footer-brand{font-size:18px;color:var(--ink)}.footer-brand small{font-size:11px;margin-bottom:3px}footer p{margin:0}.error{color:#aa3323;font-size:14px;margin:12px 0 0}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.empty-message{font-size:26px;font-weight:700;color:var(--lime);padding:30px 0 14px}.empty-helper{color:#b9cbc7;font-size:14px}
@media(min-width:1450px){.workspace{padding-top:65px}}
@media(max-width:1050px){.header{padding:24px 30px;gap:20px}nav{gap:18px}.workspace{padding:36px 30px 24px}.section{padding:36px 30px}.form-card{padding:24px}.result-card{padding:24px}.card-heading{flex-wrap:wrap;gap:8px}.grade-main{gap:20px}.grade-main strong{font-size:105px}.grade-main strong.double-grade{font-size:64px}.guide-section{margin:0 30px;padding:30px;grid-template-columns:1fr;gap:20px}.guide-cards{padding-top:0}.guide-intro h2 br{display:none}.source-section,footer{padding:28px 30px}.form-bottom{align-items:flex-start;flex-direction:column}.primary{width:100%}}
@media(max-width:760px){.header{padding:20px;flex-wrap:wrap;gap:16px}.brand{font-size:23px}nav{width:100%;justify-content:space-between;gap:12px;font-size:14px;flex-wrap:wrap}.workspace{padding:30px 20px 18px}.intro h1{font-size:38px;letter-spacing:-1.7px}.intro p{font-size:16px;margin-bottom:25px}.calculator-grid{grid-template-columns:1fr;gap:16px}.form-card{padding:22px}.result-card{padding:24px}.grade-main{min-height:140px;gap:34px}.grade-main strong{font-size:100px}.grade-main strong.double-grade{font-size:80px}.result-note{margin-top:20px}.context-strip{align-items:flex-start;flex-wrap:wrap;font-size:12px}.context-strip p{flex-basis:85%}.context-strip a{margin-left:33px}.section{padding:36px 20px}.section-top{align-items:flex-start;flex-direction:column;gap:15px}.section-top h2,.guide-intro h2,.faq-section h2{font-size:27px}.guide-section{margin:0 20px;padding:25px}.guide-cards{grid-template-columns:1fr;gap:24px}.guide-cards article{display:grid;grid-template-columns:48px 1fr;column-gap:16px}.grade-chip{grid-row:span 2}.guide-cards h3{margin:0 0 6px}.guide-cards p{grid-column:2}.faq-section{grid-template-columns:1fr;gap:22px}.source-section{padding:26px 20px;flex-direction:column;align-items:flex-start;gap:16px}footer{padding:24px 20px;flex-wrap:wrap;gap:10px}footer p{width:100%;order:3}th,td{padding:13px 15px}.badge{margin-left:5px;padding:3px 6px}.marks{gap:9px}.mark-input input{font-size:20px;padding-left:8px}.mark-input span{font-size:12px;padding-right:8px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.meter>div{transition:none}}