:root{--navy:#06151e;--teal:#2fd7c3;--gold:#c5a36a;--cream:#f4f1ea;--ink:#132a32;--muted:#607078;--line:#d9dedb}*{box-sizing:border-box}body{margin:0;background:var(--navy);color:#fff;font-family:Tahoma,Arial,sans-serif}header{height:70px;padding:0 clamp(18px,4vw,60px);display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #24404a}header a{color:#aec3c9;text-decoration:none;font-size:12px}header b{text-align:center}header small{display:block;color:var(--gold);font:8px Arial}.toolbar{min-height:58px;padding:10px clamp(15px,3vw,35px);display:flex;align-items:center;justify-content:space-between;gap:12px;background:#0b202a}.toolbar>div{display:flex;gap:7px}.toolbar button,.stage aside button,.stage aside select{border:1px solid #35515b;background:#132f39;color:#fff;padding:9px 13px;font:inherit;cursor:pointer}.toolbar button.active,.stage aside button.active{background:#148e80;border-color:var(--teal)}.stage{height:calc(100vh - 128px);min-height:650px;display:grid;grid-template-columns:1fr 300px}.stage #three{position:relative;overflow:hidden;background:radial-gradient(circle at center,#173642,#06151e 70%)}#three canvas{display:block;width:100%;height:100%}#loading{position:absolute;inset:0;display:grid;place-items:center;color:#9fb9c0}.stage aside{background:#f5f2eb;color:var(--ink);padding:24px;overflow:auto}.stage aside>span{color:#118879;font-size:11px;font-weight:800}.stage aside h2{font-size:24px}.stage aside p{color:var(--muted);line-height:1.7}.stage aside hr{border:0;border-top:1px solid var(--line);margin:22px 0}.stage aside label{display:grid;gap:8px;margin:14px 0;font-size:12px;font-weight:800}.stage aside input{accent-color:#118879}.stage aside button,.stage aside select{width:100%;margin:5px 0;text-align:right}.stage aside select{background:#fff;color:var(--ink);border-color:var(--line)}#status{background:#e7f6f3;border-right:3px solid #118879;padding:12px;font-size:12px}#status.alert{background:#fee7e4;border-color:#d43d2f;color:#8e241b}@media(max-width:800px){header b{font-size:13px}.toolbar{align-items:stretch;flex-direction:column}.toolbar>div{overflow:auto}.stage{height:auto;grid-template-columns:1fr}.stage #three{height:560px}.stage aside{min-height:420px}}