:root{--n:#092958;--g:#d6a52f;--p:#f7f2e8;--i:#16233b}*{box-sizing:border-box}body{margin:0;background:#e8eef5;font:15px Arial;color:var(--i)}.app{min-height:100vh;display:grid;grid-template-columns:380px 1fr}.panel{padding:25px;background:#fff;overflow:auto;border-right:1px solid #d4deeb}header{display:flex;align-items:center;gap:10px;color:var(--n);margin-bottom:22px}header span{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--g);color:white;font-size:22px;font-weight:bold}header b,header small{display:block}header small{font-size:12px;color:#71809a;margin-top:3px}label{display:block;font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:#53627a;font-weight:bold;margin:16px 0 6px}input,select,textarea{width:100%;margin-top:6px;padding:10px;border:1px solid #cbd7e6;border-radius:9px;background:#fbfdff;font:15px Arial;color:var(--i)}textarea{height:75px;resize:vertical}.drop{margin-top:6px;padding:14px;border:2px dashed #adbed4;border-radius:10px;text-align:center;background:#f7faff;cursor:pointer;text-transform:none;letter-spacing:0}.drop b,.drop small{display:block}.drop small{font-size:11px;font-weight:normal;margin-top:4px}output{float:right;text-transform:none}input[type=range]{padding:0}button{width:100%;margin-top:15px;padding:12px;border:0;border-radius:10px;background:var(--n);color:#fff;font-weight:bold;cursor:pointer}.light{margin-top:8px;background:#dce5f1;color:var(--n)}main{padding:28px;min-width:0}.top{display:flex;justify-content:space-between;gap:15px;align-items:flex-start}.top h1{font-size:19px;color:var(--n);margin:0}.top p,.hint{font-size:12px;color:#687792;margin:5px 0}.toggle{padding:4px;background:#dfe7f0;border-radius:10px;display:flex}.toggle button{margin:0;padding:8px 11px;background:transparent;color:#57657a;font-size:12px}.toggle button.active{background:#fff;color:var(--n);box-shadow:0 1px 6px #9dacbe}.toggle button{width:auto}nav{display:flex;gap:8px;overflow:auto;padding:20px 0 14px}.card{min-width:105px;height:70px;padding:9px;text-align:left;border:1px solid #d3ddea;border-radius:10px;background:#fff;color:#55657e;font-size:11px;cursor:pointer}.card b{display:block;color:var(--n);font-size:17px;margin-bottom:3px}.card.active{border:2px solid var(--g);background:#f1f6fc}.stage{height:calc(100vh - 205px);min-height:300px;display:flex;align-items:center;justify-content:center;border-radius:18px;padding:18px;background:radial-gradient(circle at top,#fff,#dce5ef)}canvas{max-width:100%;max-height:100%;background:var(--p);box-shadow:0 18px 45px #10264b44}.hint{text-align:center;margin-top:12px}@media(max-width:850px){.app{grid-template-columns:1fr}.panel{border-right:0;border-bottom:1px solid #d4deeb}main{padding:17px}.stage{height:62vh}.top{align-items:flex-start}.toggle{flex-wrap:wrap}}