*{box-sizing:border-box}body{margin:0;background:#0b1923;color:#eef4f8;font:16px system-ui}main{max-width:1200px;margin:auto;padding:28px}header,.row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}header{justify-content:space-between;border-bottom:1px solid #40505e;padding-bottom:20px}header b{font-size:28px}header span,p{color:#aebecb;font-size:14px}h1{font-size:32px}.panel{background:#1e2a3b;padding:20px;border-radius:14px;margin:20px 0}label{display:block;margin:12px 0}input:not([type=checkbox]),select{display:block;padding:11px;background:#162731;color:white;border:1px solid #425662;border-radius:8px;width:100%;margin-top:7px}button,.button{cursor:pointer;display:inline-block;background:#bcf45f;color:#152026;border:0;padding:11px 15px;border-radius:8px;font-weight:600;text-decoration:none}button:disabled{opacity:.45;cursor:wait}a{color:#bcf45f}#status{padding:14px;background:#1e2a3b;border-radius:8px}#drop{padding:20px;border:2px dashed #536578;border-radius:10px}.editor-grid{display:grid;grid-template-columns:1fr 280px;gap:20px}#plan{height:620px;position:relative;overflow:hidden;border-radius:12px;background:#f5f5ef}#plan canvas{width:100%;height:100%;display:block}.plan-markers{position:absolute;inset:0;pointer-events:none}.marker{pointer-events:auto;position:absolute;transform:translate(-50%,-50%);border-radius:50%;padding:0;width:34px;height:34px}.selected{background:#ffcd4c}.plan-help{position:absolute;top:12px;left:10px;z-index:2;color:#415465;background:#ffffffdd;font-size:12px;padding:6px;pointer-events:none}.plan-tools{position:absolute;right:10px;top:55px;display:flex;align-items:center;gap:7px;z-index:3;color:#162731;background:#ffffffdd;border-radius:9px;padding:6px}.danger{background:#efb0b0}.dimension-tag{position:absolute;bottom:24px;left:20px;right:100px;padding:14px;background:#172a35ed;border:1px solid #ffbb33;border-radius:8px;font-size:14px;pointer-events:none}[hidden]{display:none!important}#viewer,#view-host{position:fixed;inset:0}#view-host canvas{display:block;width:100%;height:100%}.view-header{position:fixed;top:0;left:0;right:0;z-index:3;background:#0c1724d9;padding:12px 20px;border:0;justify-content:flex-start}.view-header b{font-size:20px}.view-header label{margin:0;font-size:14px}.view-header select{width:180px;padding:7px}#view-status{flex-basis:100%;margin:0}aside{position:fixed;bottom:20px;right:20px;display:flex;gap:8px}dialog{background:#1e2a3b;color:white;border:1px solid #657681;border-radius:12px;max-width:450px}dialog::backdrop{background:#000a}@media(max-width:760px){main{padding:16px}.editor-grid{grid-template-columns:1fr}#plan{height:480px}.view-header{gap:8px}.view-header .row{gap:10px}h1{font-size:25px}}