:root{--bg:#08182f;--panel:#10243f;--panel-head:#152e50;--panel-alt:#0d1f39;--border:#253e60;--border-hi:#416693;--text:#ccd9ec;--text-hi:#f1f6ff;--muted:#96aecf;--accent:#78b1ff;--accent-dim:#204e8d}
#topbar{background:linear-gradient(110deg,#142f55,#173963);border:1px solid #2c4c77;box-shadow:0 5px 14px #020c242b}#topbar .brand .mark{background:linear-gradient(135deg,#81b9ff,#2877e4);box-shadow:0 0 16px #3b8bff30}.style-btn.active{background:#276ad0;color:white}.style-btn:hover{background:#254d83}.panel-head{background:#172f50}.sim-guide{background:#0b203d;border-color:#2e517d}.sim-guide p{color:#adbfda}.sim-guide a{color:#8fbeff}.sim-back{background:#1b467b;border-color:#426f9f;color:#d1e4ff}#viewport-hud{background:#0c2242e6;border-color:#2d4d76;color:#adbfda}#viewport-tip{background:#0b203dd9;color:#a6c1e6}.stat-cell{background:linear-gradient(145deg,#142e52,#10233f)}.stat-cell .v{color:#b4d3ff}.btn.primary{background:#205db5}.btn:hover{background:#254d83}.section-title{color:#93b2dc}.sim-note{color:#a5bbd9}