/* ChessPicker Sicilian Full-Screen Study */
.popular-study-bar{margin:16px 0 0;display:flex;gap:10px;align-items:center;flex-wrap:wrap;padding:12px 14px;border:1px solid rgba(18,53,91,.14);border-radius:14px;background:#fff}
.popular-study-bar strong{color:#12355b}.popular-study-select{padding:10px 12px;border:1px solid #cbd5e1;border-radius:10px;background:#f8fafc;min-width:260px;font-weight:700;color:#12355b}.popular-study-open{border:0;border-radius:10px;padding:10px 15px;background:#12355b;color:#fff;font-weight:800;cursor:pointer}
.sicilian-study-overlay{position:fixed;inset:0;z-index:99999;background:#07111f;color:#eef6ff;display:none;overflow:hidden;font-family:inherit}.sicilian-study-overlay.open{display:flex;flex-direction:column}.sic-top{height:66px;display:flex;align-items:center;justify-content:space-between;padding:10px 16px;background:#0c1d32;border-bottom:1px solid rgba(255,255,255,.12);gap:12px}.sic-top h2{font-size:20px;margin:0}.sic-sub{font-size:12px;color:#a9bfd6;margin-top:2px}.sic-actions{display:flex;gap:8px;flex-wrap:wrap}.sic-btn{border:1px solid rgba(255,255,255,.18);background:#132941;color:#fff;border-radius:9px;padding:9px 12px;font-weight:800;cursor:pointer}.sic-btn.primary{background:#1976d2;border-color:#1976d2}.sic-btn.danger{background:#692b31}.sic-body{display:grid;grid-template-columns:minmax(240px,300px) minmax(420px,1fr) minmax(320px,420px);gap:12px;padding:12px;min-height:0;flex:1}.sic-panel{background:#0c1d32;border:1px solid rgba(255,255,255,.10);border-radius:14px;min-height:0;overflow:hidden}.sic-left{display:flex;flex-direction:column}.sic-search{margin:12px;width:calc(100% - 24px);padding:10px 11px;border-radius:9px;border:1px solid #34506f;background:#071524;color:#fff}.sic-lessons{overflow:auto;padding:0 8px 12px}.sic-lesson{width:100%;text-align:left;border:0;background:transparent;color:#dcecff;padding:9px 10px;border-radius:9px;cursor:pointer;border-bottom:1px solid rgba(255,255,255,.06)}.sic-lesson:hover,.sic-lesson.active{background:#173555}.sic-lesson small{display:block;color:#91aac1;margin-top:3px}.sic-center{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:8px;position:relative}.sic-board{width:min(76vh,70vw,720px);aspect-ratio:1;display:grid;grid-template-columns:repeat(8,1fr);grid-template-rows:repeat(8,1fr);box-shadow:0 10px 40px rgba(0,0,0,.45);border:4px solid #dfe8f1}.sic-square{position:relative;display:flex;align-items:center;justify-content:center}.sic-square.light{background:#e6d6ba}.sic-square.dark{background:#7d8f76}.sic-square.last{box-shadow:inset 0 0 0 5px rgba(255,215,0,.58)}.sic-square img{width:88%;height:88%;object-fit:contain;pointer-events:none}.sic-coord{position:absolute;font-size:10px;font-weight:800;opacity:.7}.sic-coord.file{right:3px;bottom:2px}.sic-coord.rank{left:3px;top:2px}.sic-center-controls{display:flex;gap:8px;align-items:center;justify-content:center;margin-top:10px;flex-wrap:wrap}.sic-center-controls select{padding:8px;border-radius:8px}.sic-status{text-align:center;color:#bdd2e6;font-size:13px;margin-top:6px}.sic-right{display:flex;flex-direction:column;padding:14px;overflow:auto}.sic-right h3{margin:0 0 8px;font-size:22px}.sic-move-big{font-size:28px;font-weight:900;color:#ffe082;margin:4px 0 10px}.sic-teacher{background:#122c47;border-radius:12px;padding:14px;line-height:1.55;font-size:16px}.sic-key{margin-top:12px;background:#112338;border-left:4px solid #4da3ff;padding:11px 12px;border-radius:8px}.sic-progress{height:8px;background:#1c3651;border-radius:8px;overflow:hidden;margin:12px 0}.sic-progress span{display:block;height:100%;background:#5aa7ff;width:0}.sic-movelist{margin-top:10px;display:flex;gap:6px;flex-wrap:wrap}.sic-movelist button{border:0;background:#173555;color:#e8f3ff;border-radius:7px;padding:6px 8px;cursor:pointer}.sic-movelist button.active{background:#f6c453;color:#101820}.sic-hint{font-size:12px;color:#92abc3;margin-top:8px}.sic-welcome{max-width:680px;text-align:center;padding:30px}.sic-welcome h2{font-size:34px;margin:0 0 12px}.sic-welcome p{color:#c1d3e4;line-height:1.6}.sic-welcome button{font-size:18px;padding:13px 20px}.sic-volume{display:flex;align-items:center;gap:6px}.sic-volume input{width:90px}
@media(max-width:1100px){.sic-body{grid-template-columns:220px 1fr 340px}.sic-board{width:min(64vh,60vw)}}
@media(max-width:820px){.sic-top{height:auto}.sic-body{grid-template-columns:1fr;overflow:auto}.sic-left{max-height:180px}.sic-center{min-height:420px}.sic-board{width:min(92vw,62vh)}.sic-right{min-height:320px}.sic-actions .sic-btn:nth-child(-n+2){display:none}}
.sic-position-actions{display:grid;gap:8px;margin:14px 0;padding:12px;border-radius:12px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.12)}.sic-position-actions small{opacity:.75;line-height:1.4}