.seat-overlay{position:fixed;inset:0;z-index:170;display:none;overflow:auto;background:#eaf1f6;color:#173653}.seat-overlay.open{display:block}.seat-shell{width:min(1500px,calc(100% - 32px));margin:18px auto 40px}.seat-head{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 24px;border-radius:20px;background:#102842;color:#fff}.seat-head span{color:#78e1cb;font-weight:800}.seat-head h1{margin:4px 0;font-size:28px}.seat-head p{margin:0;color:#c8d8e8}.seat-head button{border:0;border-radius:11px;padding:11px 15px;background:#fff;color:#173653;font-weight:800}.seat-layout{display:grid;grid-template-columns:350px 1fr;gap:16px;margin-top:16px}.seat-controls,.classroom{border:1px solid #d6e1e9;border-radius:20px;background:#fff;box-shadow:0 16px 40px #17365312}.seat-controls{padding:18px}.seat-controls section{padding:15px 0;border-bottom:1px solid #e5ebef}.seat-controls section:first-child{padding-top:0}.seat-controls h2{margin:0 0 10px;font-size:15px}.seat-unit-choice{display:grid;grid-template-columns:1fr 1fr;gap:8px}.seat-unit-choice button,.seat-templates button{border:1px solid #d7e2e9;border-radius:12px;padding:10px;background:#f8fafc;color:#29445e;text-align:left}.seat-unit-choice button{font-size:20px}.seat-unit-choice b,.seat-unit-choice small,.seat-templates b,.seat-templates small{display:block}.seat-unit-choice small,.seat-templates small{margin-top:3px;color:#788697;font-size:11px}.seat-unit-choice button.active,.seat-templates button.active{border-color:#5ecdb7;background:#e9faf5;box-shadow:0 0 0 2px #5ecdb726}.seat-templates{display:grid;gap:7px}.seat-size{display:grid;grid-template-columns:1fr 1fr;gap:8px}.seat-size label:last-child{grid-column:1/-1}.seat-size label{display:grid;gap:5px;color:#6b7b8d;font-size:12px}.seat-size input,.seat-size select,.seat-controls textarea{width:100%;border:1px solid #cdd9e3;border-radius:9px;padding:9px;background:#fff}.seat-controls textarea{min-height:85px;resize:vertical}.seat-control-actions{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin-top:8px}.seat-control-actions button{border:0;border-radius:9px;padding:9px;background:#eaf1f5;color:#31506c}.seat-control-actions button:last-child{grid-column:1/-1}.seat-save{width:100%;margin-top:15px;border:0;border-radius:12px;padding:12px;background:linear-gradient(135deg,#54d4ba,#5e91e7);color:#0c2b43;font-weight:900}.classroom{position:relative;min-width:0;padding:22px;overflow:auto}.classroom-meta{display:flex;justify-content:space-between;align-items:flex-start;gap:20px}.classroom-meta b,.classroom-meta span{display:block}.classroom-meta span{margin-top:4px;color:#758599;font-size:12px}.classroom-meta p{margin:0;color:#8b641a;font-size:13px}.podium{width:min(380px,60%);margin:18px auto 26px;padding:11px;text-align:center;border-radius:10px;background:linear-gradient(#254868,#17344f);color:#fff;box-shadow:0 5px 0 #0d253b}.classroom.podium-at-bottom{display:flex;flex-direction:column}.classroom.podium-at-bottom .classroom-meta{order:0}.classroom.podium-at-bottom .podium{order:3;margin-top:26px;margin-bottom:0}.classroom.podium-at-bottom .seat-board{order:2}.classroom.podium-at-bottom .classroom-door{order:4}.seat-board{--seat-cols:6;display:grid;grid-template-columns:repeat(var(--seat-cols),minmax(115px,1fr));gap:15px 11px;align-items:center;min-width:760px;padding:12px 18px 30px;border-radius:20px;background:linear-gradient(#f1f8f7,#e6f0f2)}.seat-desk{padding:7px;border:1px solid #bdced7;border-radius:10px;background:linear-gradient(#fff7dd,#ead19a);box-shadow:0 5px 0 #b9914c}.seat-desk>span{display:block;margin-bottom:5px;color:#826220;font-size:10px;text-align:center}.seat-desk>div{display:grid;grid-template-columns:1fr;gap:5px}.seat-desk.double>div{grid-template-columns:1fr 1fr}.seat-desk label{display:flex;align-items:center;gap:4px;min-width:0}.seat-desk i{display:grid;place-items:center;flex:0 0 20px;height:20px;border-radius:50%;background:#fff;color:#496378;font-size:9px;font-style:normal}.seat-desk select{min-width:0;width:100%;border:1px solid #d4bd85;border-radius:7px;padding:5px 3px;background:#fff;font-size:11px}.seat-desk.aisle-after{margin-right:32px}.seat-board.groups .seat-desk:nth-child(4n+1),.seat-board.groups .seat-desk:nth-child(4n+2){transform:rotate(1.5deg)}.seat-board.groups .seat-desk:nth-child(4n+3),.seat-board.groups .seat-desk:nth-child(4n+4){transform:rotate(-1.5deg)}.seat-board.u-shape{gap:18px}.classroom-door{width:100px;margin:18px 0 0 auto;padding:8px;text-align:center;border:2px solid #8fb3b1;border-bottom:0;border-radius:30px 30px 0 0;color:#52706f;font-size:12px}@media(max-width:950px){.seat-layout{grid-template-columns:1fr}.seat-controls{display:grid;grid-template-columns:1fr 1fr;gap:15px}.seat-controls section{border:0}.seat-save{grid-column:1/-1}.seat-head{align-items:flex-start;flex-direction:column}}@media(max-width:650px){.seat-controls{display:block}.seat-board{min-width:650px}.classroom-meta{flex-direction:column}.seat-head h1{font-size:23px}}