*{box-sizing:border-box}body{margin:0;font:16px/1.45 Arial,Helvetica,sans-serif;color:#17303d;background:#edf1f4}button,input,select{font:inherit}button{cursor:pointer;border:1px solid #d6dfe5;background:#fff;color:#17303d;border-radius:7px;padding:10px 13px;font-size:14px;font-weight:600}button:hover{background:#f1f5f7}button:disabled{opacity:.45;cursor:not-allowed}button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #4096cf;outline-offset:2px}.primary{background:#ef5e43;color:white;border-color:#ef5e43}.primary:hover{background:#da4e34}.secondary{width:100%;margin-bottom:12px}.wide{width:100%}.text-button{border:0;color:#18729c;background:none;padding:8px 0;margin-bottom:20px}header{height:82px;display:flex;align-items:center;gap:28px;padding:0 26px;background:#fff;border-bottom:1px solid #dce3e8}header>.primary{margin-left:auto}.brand{display:flex;align-items:center;gap:10px}.brand-symbol{background:#17303d;color:#ff755b;border-radius:9px;font-size:29px;font-weight:bold;width:40px;height:40px;text-align:center;line-height:40px}.brand strong{font-size:21px;letter-spacing:2px}.brand strong span{display:block;font-size:10px;letter-spacing:4px;color:#73828c}.header-note{color:#677b86;font-size:14px}.version{margin-left:14px;border:1px solid #dce4e9;padding:4px 9px;border-radius:5px;font-size:12px}main{display:grid;grid-template-columns:290px minmax(360px,1fr) 280px;min-height:calc(100vh - 82px)}aside{padding:22px 20px;background:white}.settings{border-right:1px solid #dce3e8}.results{border-left:1px solid #dce3e8}.section-heading{display:flex;align-items:center;gap:10px;margin-bottom:16px}h1,h2,h3,p{margin:0}h1,h2{font-size:16px}.step{font-size:12px;line-height:26px;width:28px;height:28px;text-align:center;color:#8b9aa3;background:#edf2f5;border-radius:6px}.drop-zone{display:flex!important;align-items:center;text-align:center;flex-direction:column;gap:5px;border:1.5px dashed #b9c9d4;border-radius:9px;background:#f7fafc;padding:18px 6px;cursor:pointer;margin:0!important}.drop-zone:hover,.drop-zone.dragover{border-color:#ef5e43;background:#fff5f1}.drop-zone strong{font-size:14px}.drop-zone>span:last-of-type{font-size:12px;color:#7b8c97}.upload-icon{font-size:27px;color:#ef5e43}.drop-zone input{position:absolute;width:1px;height:1px;opacity:0}.file-info{font-size:12px;color:#7a8d97;margin:8px 0;word-break:break-word}label{display:block;font-size:14px;font-weight:600;margin-bottom:13px}input,select{display:block;border:1px solid #d4dee5;border-radius:6px;background:#fff;color:#17303d;width:100%;padding:9px 10px;margin-top:6px;font-size:14px;min-height:39px}.two-columns{display:grid;grid-template-columns:1fr 1fr;gap:10px}.hint,.scope-note{font-size:12px;color:#748792;line-height:1.55;margin:-4px 0 12px}.scope-note{border-top:1px solid #e3e9ed;padding-top:14px;margin-top:18px}.rules{margin-top:18px;font-size:14px}.rules summary{cursor:pointer;font-weight:600}.rules label{font-size:12px;margin-top:12px}.workspace{min-width:0;display:flex;flex-direction:column;padding:23px 20px 15px;gap:15px}.workspace-toolbar{display:flex;justify-content:space-between;align-items:center}.workspace-toolbar h2{font-size:18px}.workspace-toolbar p{font-size:12px;color:#7a8d98;margin-top:5px}.page-controls{display:flex;align-items:center;gap:10px;font-size:12px;white-space:nowrap}.page-controls button{padding:3px 10px;font-size:22px}.tools{display:flex;flex-wrap:wrap;gap:5px}.tools button{padding:7px 9px;background:#f7f9fa;font-size:12px;border-color:#d7e0e6}.tools button.active{background:#17303d;color:#fff;border-color:#17303d}.plan-view{position:relative;min-height:520px;flex:1;overflow:auto;background:#e2e8ed;border:1px solid #d2dce4;border-radius:9px;display:flex;align-items:flex-start;justify-content:center;padding:20px;background-image:radial-gradient(#c8d3db 1px,transparent 1px);background-size:16px 16px}.empty-state{margin:auto;text-align:center;color:#6c808c;padding:60px 20px}.empty-grid{font-size:60px;color:#96abb8;line-height:1.3;margin-bottom:17px}.empty-state h2{font-size:19px;color:#4c6574;margin-bottom:12px}.empty-state p{font-size:14px;line-height:1.7}.privacy{display:inline-block;font-size:12px;background:#d9e2e8;border-radius:5px;padding:6px 12px;margin-top:26px}#canvas-wrap{position:relative;width:100%;box-shadow:0 5px 28px #132e4020;align-self:center;background:#fff}#canvas-wrap[hidden]{display:none}canvas{display:block;width:100%;height:auto}#overlay{position:absolute;inset:0;touch-action:none;cursor:crosshair}.plan-footer{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:12px;color:#6b808d}.legend{display:flex;gap:12px;flex-wrap:wrap}.legend span{display:flex;align-items:center;gap:5px}.dot{display:inline-block;width:8px;height:8px;border-radius:50%}.red{background:#ed5948}.blue{background:#2177d0}.amber{background:#d79a17}.total-card{padding:16px 19px;background:#17303d;color:#d3e0e7;border-radius:9px;display:flex;flex-direction:column;margin-bottom:19px;font-size:12px}.total-card strong{font-size:46px;color:#fff;line-height:1.35}.equipment-row{display:flex;align-items:center;justify-content:space-between;gap:9px;padding:11px 0;border-bottom:1px solid #edf1f4;font-size:14px}.equipment-row .label{display:flex;align-items:center;gap:8px}.equipment-row b{font-size:16px}.equipment-row small{display:block;font-size:11px;color:#7b8d98}.panel-result{font-size:12px;line-height:1.6;padding:12px;background:#f3f6f8;border-radius:7px;margin:18px 0}.tabs{display:flex;border-bottom:1px solid #dce4e9;margin-bottom:12px}.tabs button{border:0;border-radius:0;font-size:14px;padding:8px;background:none;color:#74838b}.tabs button.active{color:#17303d;border-bottom:2px solid #ef5e43}.tabs span{font-size:12px;background:#ecf1f4;padding:2px 5px;border-radius:3px}#room-list{max-height:360px;overflow:auto}.room-item{width:100%;text-align:left;border:0;border-bottom:1px solid #e7edf1;border-radius:0;font-size:14px;padding:10px 4px;background:white}.room-item small{display:block;font-size:12px;color:#7c8e98;margin-top:3px}.room-item.selected{background:#edf6fb}.warning{font-size:12px;line-height:1.5;margin-bottom:9px;background:#fff6e5;padding:10px;border-left:3px solid #e7b252;border-radius:3px}#selection{border-top:1px solid #dce4e9;margin-top:15px;padding-top:15px}#selection h3{font-size:14px;margin-bottom:12px}.delete{color:#c34035}.selection-actions{display:flex;gap:8px;margin-top:12px}.room-empty{font-size:13px;color:#7d8f9a;padding:10px 0}.busy{pointer-events:none;opacity:.6}dialog{border:0;border-radius:12px;max-width:420px;padding:28px;box-shadow:0 15px 70px #0e293d35}dialog::backdrop{background:#18313d60}dialog h2{font-size:20px;margin-bottom:12px}dialog p{font-size:14px;color:#617681;margin-bottom:20px}.dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:20px}@media(min-width:1700px){main{grid-template-columns:320px minmax(400px,1fr) 310px}}@media(max-width:1150px){main{grid-template-columns:260px minmax(320px,1fr)}.results{grid-column:1/-1;display:block;border-top:1px solid #dce3e8}.total-card{max-width:220px}.equipment-list{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}#room-list{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}}@media(max-width:700px){header{height:70px;padding:0 14px;gap:10px}.header-note{display:none}main{display:flex;flex-direction:column}.settings{border:0;padding:18px}.workspace{padding:16px 12px;order:1}.results{order:2;padding:18px}.plan-view{min-height:320px;padding:8px}.settings .drop-zone{padding:12px}.equipment-list{grid-template-columns:1fr 1fr;gap:8px}#room-list{grid-template-columns:1fr}.workspace-toolbar p{max-width:230px}.tools button{font-size:12px}.plan-footer{font-size:12px}}
/* Keep the plan visible while long room lists and settings scroll independently. */
.rule-note{font-size:12px;color:#71848e;line-height:1.6;margin:10px 0}.checkbox{display:flex;align-items:center;gap:8px;font-size:14px}.checkbox input{width:17px;min-height:17px;height:17px;margin:0}.rule-note a{color:#157597}
@media(min-width:1151px){header{height:74px}main{height:calc(100vh - 74px);min-height:0}.settings,.results{overflow-y:auto}.workspace{min-height:0}.plan-view{min-height:300px;overflow:auto}.workspace-toolbar{flex-shrink:0}.tools{flex-shrink:0}}

.device-symbol{width:28px;height:24px;flex-shrink:0;vertical-align:middle}.legend span,.equipment-row .label{display:flex;align-items:center;gap:6px}