.lf .preparation-study{padding:18px 20px;margin:18px 0;background:#182820;border:1px solid #64705a;border-radius:4px;color:#e6e2d2}
.lf .preparation-study h3{font:400 26px/1.25 var(--serif);margin:0 0 10px;color:#f0dab0}
.lf .preparation-study h4{font:600 14px/1.5 var(--sans);margin:12px 0;color:#f0dab0}
.lf .preparation-study p{font:13px/1.6 var(--sans);max-width:75ch}
.lf .preparation-study button,.lf .study-examples summary{min-height:44px;font:600 13px/1.5 var(--sans)}
.lf .study-examples summary{display:flex;align-items:center;cursor:pointer;padding:10px 0;color:#dfcca5}
.lf .study-examples summary:before{content:'+ ';margin-right:8px}
.lf .study-examples[open] summary:before{content:'− '}
.lf .study-samples{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.lf .study-sample{min-width:0;border-top:1px solid var(--line)}
.lf .study-cards{display:flex;flex-wrap:wrap;align-items:flex-start;gap:6px}
.lf .study-cards .playing-card{width:96px;min-width:96px;max-width:96px}
.lf .study-cards .playing-card:has(.effective-identity){margin-bottom:68px}
.lf .study-held .playing-card{opacity:.85}
.lf .study-sample small{display:block;font:11px/1.5 var(--sans);color:#d4d1bf}
.lf .study-proposal,.lf .study-forecast{padding:16px;margin:14px 0;border-left:3px solid #cbb17a;background:#22332b}
.lf .study-sentence{display:block;font:600 13px/1.6 var(--sans);color:#f0dab0}
.lf .study-gain{color:#f0dab0;font-weight:600!important}
.lf .study-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:14px}
.lf .study-coverage{padding-left:18px;font:12px/1.8 var(--sans)}
.lf #study-feedback:empty{display:none}
.lf .round-opportunity{padding:12px 16px;border-left:3px solid #b29d68;background:#1c2d25;margin:12px 0;color:#e7e0cb;font:13px/1.6 var(--sans)}
.lf .round-opportunity strong{color:#f0dab0}
.lf .route-opportunity{display:block;border-top:1px solid var(--line);padding-top:12px;font:13px/1.6 var(--sans);color:#efe0b9}
.lf .route-opportunity strong{display:block;font:600 14px/1.5 var(--sans);margin-bottom:4px}
.lf .word-tile.boss-target:not(:focus-visible):not(.selected){outline:2px dashed #b94d39;outline-offset:-5px}
.lf .boss-target:after{content:'↕';position:absolute;right:7px;top:5px;font:700 13px var(--sans);color:#742b21}
.lf .boss-plan{grid-column:1/-1;margin:12px 0;padding:12px 16px;background:#2c251e;border-left:3px solid #c18d60;font:13px/1.6 var(--sans);color:#f0ddbd}
.lf .boss-plan p{margin:4px 0}
@media(max-width:650px){
 .lf .preparation-study{padding:14px}
 .lf .study-samples{grid-template-columns:1fr}
 .lf .study-actions{flex-direction:column;align-items:stretch}
 .lf .study-cards .playing-card{width:calc((100% - 12px)/3);min-width:88px;max-width:110px}
 .lf .preparation-study h3{font-size:23px}
}