.practice-shell{display:grid;grid-template-columns:240px 1fr;border:1px solid var(--border);border-radius:12px;overflow:hidden}.practice-shell aside{padding:30px 20px;background:var(--pale);border-right:1px solid var(--border)}.tab-label{display:block;font-size:10px;letter-spacing:1.5px;color:var(--muted);padding:0 14px 20px}.practice-shell aside button{width:100%;display:flex;align-items:center;gap:14px;border:0;border-radius:6px;padding:15px 14px;background:none;color:var(--muted);margin-bottom:8px;text-align:left}.practice-shell aside button[aria-selected=true]{background:var(--navy);color:white}.practice-shell aside button span{font-size:12px;opacity:.6}.practice-shell aside p{font-size:12px;color:var(--muted);padding:25px 14px}#exercise{padding:35px 40px}.exercise-meta{display:flex;justify-content:space-between;gap:12px;font-size:10px;letter-spacing:1.3px;color:var(--blue);font-weight:600}#exercise h3{font-size:26px;margin:15px 0 8px}.muted{color:var(--muted)}#task>.muted{font-size:14px}.passage{font-size:17px;line-height:1.95;margin:22px 0 25px}.passage strong{color:var(--blue)}fieldset{border:0;padding:0;margin:0 0 24px;display:grid;grid-template-columns:1fr 1fr;gap:10px}fieldset label{display:flex;align-items:center;gap:12px;border:1px solid var(--border);border-radius:6px;padding:11px 14px;cursor:pointer;font-size:15px}fieldset label:has(input:checked){border-color:var(--blue);background:#edf3fc}fieldset input{accent-color:var(--blue)}fieldset span{font-size:12px;color:var(--muted)}#feedback{background:#eff4fa;padding:18px;border-left:3px solid var(--blue);margin-top:23px;font-size:14px}.disclaimer{font-size:12px;color:var(--muted);line-height:1.8}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.action-row{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:12px}.action-row .button{flex-shrink:0}.action-row output{font-size:28px;font-variant-numeric:tabular-nums}.action-row>span{font-size:12px;color:var(--muted)}textarea,input:not([type=radio]),select{width:100%;min-width:0;border:1px solid #bac8d9;border-radius:6px;padding:12px 14px;background:white;color:var(--navy)}textarea{resize:vertical}#task>label{font-size:14px;display:block;margin-bottom:8px}.audio-box{display:flex;align-items:center;gap:20px;background:var(--pale);padding:16px;border-radius:8px}.audio-box span{font-size:12px;color:var(--muted)}details{border-bottom:1px solid var(--border);padding:19px 0}summary{cursor:pointer;font-weight:500}details p{font-size:14px;color:var(--muted);line-height:1.8}.planner{display:grid;grid-template-columns:1fr 1.15fr;gap:95px;align-items:start}.planner form{margin-top:28px}.planner form label{display:block;font-size:14px;font-weight:500;margin:18px 0 8px}.planner form .button{margin-top:24px}.plan-result{background:var(--pale);border:1px solid var(--border);border-radius:12px;padding:32px}.plan-result h3{margin:15px 0 20px}.plan-result ol{padding:0;list-style:none;margin:0}.plan-result li{display:flex;align-items:center;gap:18px;border-top:1px solid var(--border);padding:13px 0}.plan-result li>span{font-size:12px;text-transform:uppercase;width:34px;color:var(--muted)}.plan-result strong{font-size:14px;font-weight:600}.plan-result li p{font-size:12px;color:var(--muted);margin:0}.plan-result>.disclaimer{border-top:1px solid var(--border);padding-top:16px}.faq-layout{display:grid;grid-template-columns:.85fr 1.4fr;gap:80px}#faq{border-top:1px solid var(--border)}.faq-layout details:first-child{padding-top:0}
@media(max-width:1000px){.planner{gap:40px}#exercise{padding:28px}.practice-shell{grid-template-columns:200px 1fr}.faq-layout{gap:40px}}@media(max-width:760px){.practice-shell{grid-template-columns:1fr}.practice-shell aside{padding:12px;border-right:0;border-bottom:1px solid var(--border)}.tab-label,.practice-shell aside p,.practice-shell aside button span{display:none}.practice-shell [role=tablist]{display:grid;grid-template-columns:repeat(4,1fr);gap:3px}.practice-shell aside button{justify-content:center;padding:11px 4px;margin:0;font-size:12px}#exercise{padding:24px 20px}.exercise-meta{font-size:9px;letter-spacing:1px}.passage{font-size:16px}fieldset{gap:8px}fieldset label{font-size:14px;padding:10px;gap:6px}.planner,.faq-layout{grid-template-columns:1fr;gap:30px}.plan-result{padding:24px}.audio-box{flex-direction:column;align-items:flex-start}.action-row:has(input){flex-direction:column;align-items:stretch}.action-row .button{font-size:13px;padding:12px}.exercise-meta{flex-wrap:wrap}}