:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#14203a;background:#f3f6fb;font-size:16px;--navy:#121e38;--lime:#d6fa66;--muted:#607087;--border:#dce3ed;--green:#08664e;--red:#ad343e}*{box-sizing:border-box}body{margin:0}button,input{font:inherit}button,a,input,summary{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #5575d9;outline-offset:4px}a{color:inherit}button:disabled{cursor:default}.top{max-width:1240px;margin:auto;padding:30px 40px;display:flex;align-items:center;gap:24px;border-bottom:1px solid var(--border)}.brand{text-decoration:none;font-size:25px;font-weight:800;letter-spacing:-1px;display:flex;align-items:center;gap:9px}.brand>span:last-child{font-weight:400;margin-left:-8px}.brand-icon{display:grid;place-items:center;width:36px;height:36px;background:var(--navy);color:var(--lime);border-radius:11px;letter-spacing:0}.top-label{font-size:12px;letter-spacing:1.7px;color:var(--muted);margin-left:auto}.edition{font-size:13px;border:1px solid var(--border);padding:8px 12px;border-radius:30px;color:#4d5e76}main{max-width:1120px;margin:42px auto 0;padding:0 28px;min-height:70vh}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(36px,4.7vw,58px);line-height:1.07;letter-spacing:-2.1px;margin-bottom:18px;font-weight:800}h2{font-size:28px;letter-spacing:-.6px;line-height:1.3}p{line-height:1.65}.eyebrow{font-size:12px;font-weight:700;letter-spacing:1.8px;text-transform:uppercase;color:#667792;margin-bottom:18px}.intro{display:flex;gap:38px;align-items:flex-end;justify-content:space-between;margin-bottom:32px}.intro p{max-width:440px;color:var(--muted);margin:0}.intro h1{max-width:650px}.highlight{color:#3e63bc}.layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:24px}.card{background:white;border:1px solid var(--border);border-radius:22px;padding:30px;box-shadow:0 8px 26px #23385a05}.card-label{font-size:15px;font-weight:700;margin-bottom:18px}.lengths{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.length{border:1px solid var(--border);background:#fff;border-radius:15px;padding:22px 10px;text-align:left;position:relative;color:var(--navy)}.length strong{display:block;font-size:38px;letter-spacing:-1.5px;line-height:1.1;margin:10px 0}.length span{font-size:14px;color:#63728a}.length .mini{display:block;font-size:12px;font-weight:700;letter-spacing:.6px}.length.active{background:var(--navy);color:white;border-color:var(--navy)}.length.active span{color:#bbc7dd}.length.active:after{content:'✓';position:absolute;right:12px;top:10px;color:var(--lime)}.primary{background:var(--lime);color:var(--navy);border:0;padding:16px 24px;border-radius:12px;font-weight:750;transition:transform .15s,filter .15s}.primary:hover{filter:brightness(.95);transform:translateY(-1px)}.wide{width:100%;margin-top:22px}.secondary{background:white;border:1px solid var(--border);border-radius:12px;padding:13px 19px;font-weight:650;color:var(--navy)}.secondary:hover{background:#edf2fa}.hint{font-size:14px;color:var(--muted);margin:15px 0 0}.dark{background:var(--navy);color:white;border:0;position:relative;overflow:hidden}.dark .eyebrow{color:var(--lime)}.dark h2{font-size:27px}.dark p{color:#becae0;font-size:15px}.steps{list-style:none;padding:0;margin:28px 0 0;display:grid;gap:22px}.steps li{display:flex;gap:13px;font-size:15px;line-height:1.5}.step-no{flex-shrink:0;display:grid;place-items:center;width:28px;height:28px;border:1px solid #4b5870;border-radius:50%;color:var(--lime);font-size:12px}.steps small{display:block;color:#acbad0;font-size:14px;margin-top:3px}.profile{margin-top:24px;border-top:1px solid var(--border);padding-top:18px}summary{cursor:pointer;font-size:14px;font-weight:650;line-height:1.5}.profile p{font-size:14px;color:var(--muted);margin-top:12px}.fields{display:grid;grid-template-columns:1fr 1fr;gap:14px}.fields label{font-size:14px;display:grid;gap:6px}.fields input{width:100%;border:1px solid #b7c4d8;border-radius:9px;padding:10px 12px;color:var(--navy)}.source-note{margin:25px 0 0;font-size:14px;color:var(--muted);line-height:1.7}.source-note a{font-weight:600}.error{color:var(--red);font-size:14px}.quiz-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;gap:15px}.quiz-head .eyebrow{margin:0}.quiz-wrap{max-width:780px;margin:auto}.progress-meta{display:flex;justify-content:space-between;font-size:14px;color:var(--muted);margin-bottom:10px;gap:15px}.progress{height:7px;background:#dfe6f0;border-radius:10px;overflow:hidden;margin-bottom:28px}.progress>div{height:100%;background:#4869c0;border-radius:10px;transition:width .25s}.qcard{padding:36px}.tag{display:inline-block;font-size:12px;text-transform:uppercase;letter-spacing:1px;font-weight:700;color:#4266b0;background:#edf2fc;border-radius:6px;padding:7px 10px}.qcard h1{font-size:clamp(26px,3.3vw,36px);letter-spacing:-.8px;line-height:1.3;margin:24px 0 28px}.answers{display:grid;gap:11px}.answer{display:flex;align-items:center;gap:15px;width:100%;border:1px solid var(--border);border-radius:12px;padding:17px;background:white;text-align:left;color:var(--navy);line-height:1.5}.answer:hover:not(:disabled){background:#f3f6fd;border-color:#627fd0}.letter{display:grid;place-items:center;border:1px solid #dce3ed;border-radius:7px;width:30px;height:30px;flex-shrink:0;font-size:14px;color:var(--muted)}.answer.correct{border-color:#30947c;background:#edf9f4;color:var(--green)}.answer.wrong{border-color:#d2787e;background:#fff1f1;color:var(--red)}.answer:disabled:not(.correct):not(.wrong){color:#68768a;background:#fafbfe}.result-icon{margin-left:auto;font-weight:800;flex-shrink:0}.feedback{margin-top:24px;border-radius:13px;padding:22px;background:#eef8f3;border-left:4px solid #27876e;animation:rise .25s ease-out}.feedback.missed{background:#fff5ee;border-color:#c98735}.feedback h3{font-size:18px;margin-bottom:9px}.feedback p{font-size:16px;margin:0}.accepted{margin-top:14px;font-size:14px;color:#576b65;line-height:1.6}.accepted summary{font-size:14px}.qbottom{margin-top:22px;display:flex;align-items:center;justify-content:space-between;gap:20px}.qbottom span{font-size:13px;color:var(--muted)}.result-hero{display:flex;gap:35px;align-items:center;margin-bottom:24px;background:var(--navy);color:white}.score{width:145px;height:145px;border-radius:50%;background:conic-gradient(var(--lime) var(--score),#39465e 0);padding:10px;flex-shrink:0}.score-inner{background:var(--navy);border-radius:50%;width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center}.score strong{font-size:38px;letter-spacing:-1px}.score span{font-size:13px;color:#becae0}.result-hero h1{font-size:37px;letter-spacing:-1px;margin-bottom:12px}.result-hero p{color:#bdcae0;margin:0}.stats{display:flex;gap:22px;margin-top:20px}.stats strong{font-size:25px;display:block}.stats span{font-size:14px;color:#bdcae0}.review-head{display:flex;justify-content:space-between;gap:15px;align-items:center;margin:35px 0 20px;flex-wrap:wrap}.review-head h2{margin:0}.filters{display:flex;gap:7px;flex-wrap:wrap}.filter{border:1px solid var(--border);background:white;color:#52627a;padding:9px 13px;border-radius:30px;font-size:14px}.filter.active{background:var(--navy);color:white;border-color:var(--navy)}.review{margin-bottom:12px;padding:20px 24px}.review summary{display:flex;align-items:flex-start;gap:15px;font-size:16px;font-weight:600}.badge{background:#edf8f3;color:var(--green);padding:4px 8px;border-radius:6px;font-size:12px;flex-shrink:0}.badge.missed{background:#fff0f1;color:var(--red)}.review-body{margin:17px 0 0 0;border-top:1px solid var(--border);padding-top:15px}.review-body p{margin:6px 0;font-size:15px}.review-body .explain{color:var(--muted);margin-top:13px}.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}.category-summary{display:grid;grid-template-columns:repeat(auto-fit,minmax(145px,1fr));gap:12px;margin-top:22px}.category-summary div{padding:15px;background:white;border:1px solid var(--border);border-radius:12px;font-size:13px;line-height:1.5}.category-summary strong{display:block;font-size:21px;margin-top:6px}.category-summary small{color:var(--muted);font-size:13px}.quit-box{background:white;padding:22px;border:1px solid #bdc9e0;border-radius:15px;margin-bottom:20px}.quit-box p{margin-bottom:12px}footer{max-width:1120px;margin:50px auto 25px;padding:0 28px;display:flex;justify-content:space-between;gap:20px;font-size:12px;color:var(--muted);line-height:1.6}footer a{text-decoration:none;white-space:nowrap}@keyframes rise{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}@media(max-width:800px){.top{padding:22px 24px;flex-wrap:wrap;gap:14px}.top-label{display:none}.edition{margin-left:auto}.intro{display:block}.intro p{max-width:580px}.layout{grid-template-columns:1fr}.dark{padding:24px}.steps{grid-template-columns:repeat(3,1fr);gap:16px;margin-top:20px}.dark h2{font-size:23px}.steps li{display:block}.step-no{margin-bottom:10px}.intro h1{max-width:650px}main{margin-top:30px}.result-hero{gap:24px}}@media(max-width:520px){main{padding:0 18px}.top{padding:19px 18px}.edition{font-size:12px}.brand{font-size:22px}.intro h1{font-size:40px;letter-spacing:-1.5px}.card{padding:23px 18px;border-radius:17px}.lengths{gap:8px}.length{padding:17px 10px}.length strong{font-size:32px}.length span{font-size:12px}.steps{grid-template-columns:1fr}.steps li{display:flex}.step-no{margin:0}.fields{grid-template-columns:1fr}.qcard{padding:24px 18px}.answer{padding:14px 12px;gap:10px}.result-hero{align-items:flex-start;flex-direction:column}.score{width:120px;height:120px}.qbottom{align-items:flex-start;flex-direction:column}.qbottom button{width:100%}.result-hero h1{font-size:32px}.review{padding:18px}.review summary{gap:10px}.badge{font-size:12px}.stats{gap:28px}footer{flex-direction:column;padding:0 18px;gap:9px}.quiz-head .secondary{font-size:14px;padding:9px 13px}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
.question-preview{opacity:.55;filter:blur(2px);pointer-events:none}.setup-overlay{position:fixed;inset:0;z-index:10;display:flex;align-items:center;justify-content:center;padding:24px;background:#121e3880;backdrop-filter:blur(5px);overflow-y:auto}.setup-window{width:100%;max-width:680px;max-height:calc(100dvh - 48px);overflow-y:auto;background:#fff;border:1px solid #e1e8f1;border-radius:24px;padding:30px;box-shadow:0 28px 90px #06132955}.setup-window .intro{display:block;margin-bottom:24px}.setup-window .intro .eyebrow{margin-bottom:10px}.setup-window h1{font-size:34px;letter-spacing:-1px;line-height:1.2;margin-bottom:12px}.setup-window .intro p{max-width:100%;font-size:16px}.setup-window .layout{display:block}.setup-window .card{border:0;border-radius:0;padding:0;box-shadow:none}.setup-window .length{padding:18px 14px}.setup-window .length strong{font-size:34px}.setup-window .source-note{font-size:12px;margin-top:20px;line-height:1.6}.setup-window .profile{margin-top:20px}.setup-window .hint{margin-top:12px}.setup-window .wide{margin-top:18px}.setup-window .error:empty{display:none}@media(max-width:520px){.setup-overlay{padding:12px}.setup-window{padding:24px 18px;max-height:calc(100dvh - 24px);border-radius:20px}.setup-window h1{font-size:29px}.setup-window .length{padding:16px 9px}.setup-window .length .mini{font-size:11px;letter-spacing:0}.setup-window .length strong{font-size:31px}}

.brand>.brand-name{font-weight:750;margin-left:0;font-size:23px;letter-spacing:-.7px;line-height:1.2}@media(max-width:520px){.brand>.brand-name{font-size:20px}.top .edition{margin-left:0}}
.setup-community{display:flex;justify-content:space-between;align-items:flex-start;gap:14px;margin-top:20px;border-top:1px solid var(--border);padding-top:16px}.share-menu{position:relative;font-size:14px}.share-menu summary{font-size:14px;color:#4266b0;list-style:revert}.share-options{display:flex;flex-wrap:wrap;gap:12px;padding:16px;background:#f4f7fc;border:1px solid var(--border);border-radius:12px;margin-top:12px;max-width:420px;min-width:240px;font-size:14px}.share-options a{font-weight:600;text-decoration:none;color:#325797}.share-options label{width:100%;font-size:12px;color:var(--muted)}.share-url{display:block;width:100%;min-width:0;padding:10px;border:1px solid #c4d0e3;border-radius:7px;margin-top:6px;background:white;font-size:13px;color:#14203a}.share-options .secondary{font-size:14px;padding:9px 12px}.share-status{font-size:13px;width:100%;color:#08664e}.support-link{display:inline-block;padding:12px 18px;background:#fff2bf;color:#4b3c12;border:1px solid #e8d68b;border-radius:10px;text-decoration:none;font-size:14px;font-weight:700;white-space:nowrap}.support-link:hover{background:#ffe992}.support-link.subtle{background:transparent;border:0;padding:0;color:#52627a;font-size:13px;font-weight:600;white-space:normal}.support-card{display:flex;justify-content:space-between;align-items:center;gap:24px;border:1px solid #dce3ed;border-radius:16px;background:#fff;padding:24px;margin-top:22px}.support-card h2{font-size:20px;margin:0 0 8px}.support-card p{font-size:14px;color:var(--muted);margin:0;max-width:610px}.results-community{margin-top:22px}footer{flex-wrap:wrap;align-items:flex-start}footer .share-options{font-size:14px}footer .footer-support{font-weight:650;color:#52627a}@media(max-width:520px){.setup-community{flex-direction:column}.support-card{flex-direction:column;align-items:flex-start;padding:20px}.share-options{max-width:100%;min-width:0}.setup-community .share-menu{width:100%}}

.setup-window .intro p{line-height:1.6}.setup-window .card-label{font-size:17px;margin-bottom:14px}.setup-window .length strong{font-size:42px;margin:12px 0 7px}.setup-window .length span:not(.mini){font-size:16px}.setup-window .wide{font-size:17px}.practice-about{margin-top:18px;color:var(--muted)}.practice-about summary{font-size:13px;font-weight:500}.setup-window .practice-about .source-note{margin-top:12px}.setup-window .intro h1{font-size:34px;line-height:1.22}@media(max-width:520px){.setup-window .intro h1{font-size:29px}.setup-window .length strong{font-size:36px}.setup-window .length span:not(.mini){font-size:14px}}
.setup-support .support-card{background:#fff7d7;border:1px solid #e5c659;border-radius:14px;padding:20px;gap:16px;align-items:flex-start;flex-direction:column;margin-top:20px}.setup-support .support-card h2{font-size:20px;color:#3c3215;margin-bottom:8px}.setup-support .support-card p{font-size:14px;color:#615634;line-height:1.6}.setup-support .support-link{background:#ffda57;border:1px solid #dab12e;color:#332907;font-size:16px;padding:13px 21px;box-shadow:0 3px 0 #c9a22b}.setup-support .support-link:hover{background:#ffcd2c}.setup-window .setup-community{padding-top:13px;margin-top:15px}.results-community+.support-card{background:#fff7d7;border-color:#e5c659}.results-community+.support-card .support-link{background:#ffda57;font-size:16px}footer .footer-support{display:inline-block;background:#fff2bf;border:1px solid #e8d68b;border-radius:8px;padding:9px 12px;font-size:14px;color:#4b3c12}@media(max-width:520px){.setup-support .support-link{width:100%;text-align:center}.setup-support .support-card{padding:18px}}
.study-intro{max-width:860px}.study-intro h1{font-size:clamp(32px,4vw,48px)}.study-intro p{color:var(--muted);max-width:780px}.study-start{display:inline-block;text-decoration:none;margin:5px 0 24px}.study-breadcrumb{font-size:14px;margin-bottom:24px;color:var(--muted)}.study-notes h2{font-size:24px}.study-notes p{font-size:16px}.study-topics{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0}.study-topics a{font-size:14px;background:white;border:1px solid var(--border);border-radius:20px;padding:10px 15px;text-decoration:none}.study-topic{scroll-margin-top:20px;margin-top:35px}.study-question{margin-bottom:14px;padding:24px}.study-question h3{font-size:19px;line-height:1.5}.study-question h3 span{color:#5575bd}.study-question p{margin-bottom:12px}.study-question details{font-size:15px;line-height:1.6}.study-question details summary{color:#4266b0}