header nav{display:flex;gap:18px;align-items:center}header nav a{font-size:12px;color:var(--green);text-decoration:none}header nav a[aria-current]{border-bottom:2px solid var(--green);padding-bottom:5px;font-weight:700}.intro h1{max-width:700px;font-size:38px}.study-notice{border:1px solid #cbd6c3;background:#eaf0e3;border-radius:12px;padding:17px 22px;margin-bottom:24px}.study-notice p{font-size:12px;margin:5px 0}.study-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:24px;align-items:start}.practice,.study-side{padding:28px}.practice h2{font-size:25px;line-height:1.45;letter-spacing:-.6px}.study-side p{font-size:12px}.study-step{display:flex;gap:12px;margin:22px 0}.study-step>span{background:#edf2e6;width:28px;height:28px;display:grid;place-items:center;border-radius:50%;flex-shrink:0}.study-step p{margin:5px 0}.scope{border-top:1px solid var(--line);padding-top:20px;font-size:12px}.scope a,.source a{color:var(--green)}.setup-choices{display:flex;gap:10px;margin:20px 0}.setup-choices button{flex:1;padding:20px 12px;font-size:18px}.setup-choices button small{display:block;font-size:11px;margin-top:6px}.setup-choices button[aria-pressed=true]{background:var(--ink);color:white;border-color:var(--ink)}.start-button{width:100%;margin-top:15px;min-height:48px}.quiz-meta{display:flex;justify-content:space-between;gap:10px;font-size:11px;color:var(--muted);margin-bottom:12px}.quiz-track{height:5px;background:#edf0e7;border-radius:4px;margin-bottom:25px}.quiz-track span{display:block;height:100%;background:var(--green);border-radius:4px}.answers{display:grid;gap:10px;margin-top:24px}.answer{display:flex;align-items:center;gap:12px;text-align:left;padding:15px;min-height:55px;font-weight:500;line-height:1.5}.answer .letter{display:grid;place-items:center;border:1px solid var(--line);width:29px;height:29px;border-radius:7px;flex-shrink:0}.answer:disabled{cursor:default;opacity:1}.answer.correct{background:#e8f2df;border-color:#7e9f69}.answer.incorrect{background:#EEE4D5;border-color:#2E2E2E}.feedback{border-radius:10px;background:#f2f5ec;margin-top:20px;padding:18px}.feedback p{font-size:13px}.source{font-size:11px;margin-top:12px}.quiz-actions{display:flex;gap:12px;justify-content:space-between;margin-top:24px}.quiz-actions button{min-height:45px}.result-score{font:700 60px Manrope,sans-serif;letter-spacing:-2px;margin:15px 0}.result-score small{font-size:20px;color:var(--muted);letter-spacing:0}.result-item{padding:16px 0;border-top:1px solid var(--line)}.result-item strong{display:block;line-height:1.5}.result-item p{font-size:12px}.result-item .badge{display:inline-block;margin-bottom:8px}.study-preview{max-width:430px!important;padding:25px 16px!important;border:1px solid var(--line);border-radius:25px;background:var(--paper);margin:24px auto}.study-preview .study-layout{grid-template-columns:1fr}.study-preview .intro{display:block}.study-preview .intro h1{font-size:29px}.study-preview .practice,.study-preview .study-side{padding:20px}.study-preview .practice h2{font-size:21px}.study-preview #phonePreview{margin-top:10px}.study-preview .study-notice{padding:15px}@media(max-width:750px){header{height:auto;min-height:90px;flex-wrap:wrap;gap:10px;padding:15px 18px}header nav{width:100%;gap:20px;flex-wrap:wrap}.study-layout{grid-template-columns:1fr}.intro h1{font-size:30px}.practice,.study-side{padding:20px}.practice h2{font-size:22px}#phonePreview{display:none}.quiz-actions{flex-wrap:wrap}.quiz-actions .primary{flex:1}.study-preview{border:0;margin:0 auto}}

.setup-choices{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}.setup-choices button{min-width:0;text-align:left;padding:18px 14px}.length-name{display:block;font-size:12px;letter-spacing:.8px;margin-bottom:12px}.setup-choices strong{display:block;font:700 30px Manrope,sans-serif}.setup-choices strong span{font:400 11px 'DM Sans',sans-serif}.bank-status{font-size:9px!important;opacity:.85}.bank-notice{padding:14px;background:#f5f1e6;border-radius:8px;font-size:12px;line-height:1.6}.start-button:disabled{opacity:.6;cursor:not-allowed}.study-preview .setup-choices{grid-template-columns:1fr}.study-preview .setup-choices button{padding:15px}.study-preview .length-name{margin-bottom:5px}@media(max-width:600px){.setup-choices{grid-template-columns:1fr}.setup-choices button{padding:15px}.length-name{margin-bottom:5px}}