:root{color-scheme:dark;--accent: #5ad1ff;--amber: #ffcf5a;--panel: #081620;--panel-2: #0e2330;--line: #1d3a4a;--text: #dfeaf0;--muted: #7fa0b0;--bad: #ff5a6a}*{box-sizing:border-box}html,body{height:100%}body{margin:0;background:radial-gradient(1100px 700px at 50% -10%,#0c2230,#04101a 60%),#04101a;color:var(--text);font-family:ui-sans-serif,system-ui,Segoe UI,Roboto,sans-serif;display:flex;justify-content:center;align-items:center;min-height:100vh;padding:14px}.bg-root{display:flex;gap:14px;align-items:stretch;max-width:1380px;width:100%}.bg-stage{position:relative;flex:1 1 auto;min-width:0}canvas{display:block;width:100%;height:auto;aspect-ratio:900 / 540;border:1px solid var(--line);border-radius:10px;box-shadow:0 0 50px #5ad1ff14,inset 0 0 70px #00000080;cursor:pointer;touch-action:none}.bg-panel{flex:0 0 320px;background:linear-gradient(180deg,var(--panel) 0%,#050e16 100%);border:1px solid var(--line);border-radius:10px;padding:14px;display:flex;flex-direction:column;gap:10px;max-height:calc(100vh - 28px);overflow-y:auto}.bg-panel h1{margin:0;font-size:1.3rem;letter-spacing:.14em;font-family:ui-monospace,monospace;color:var(--amber)}.bg-panel h1 span{color:var(--accent)}.bg-sub{margin:0;font-size:.76rem;color:var(--muted);line-height:1.35}.bg-gauges{display:grid;grid-template-columns:1fr 1fr;gap:8px}.bg-gauge{background:var(--panel-2);border:1px solid var(--line);border-radius:7px;padding:5px 8px}.bg-gauge-l{display:flex;justify-content:space-between;font-size:.68rem;color:var(--muted)}.bg-gauge-l b{color:var(--text);font-variant-numeric:tabular-nums}.bg-bar{height:6px;margin-top:3px;background:#04141d;border-radius:4px;overflow:hidden}.bg-fill{height:100%;width:100%;transition:width .1s 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solid var(--line);border-radius:3px;padding:0 4px}.bg-cd{font-size:.66rem;color:var(--bad);font-variant-numeric:tabular-nums;min-width:22px;text-align:right}.bg-ovrb.cooling{opacity:.5}.bg-ovrb.armed{border-color:var(--bad);box-shadow:0 0 0 1px var(--bad) inset}.bg-btn{font:inherit;color:var(--text);background:var(--panel-2);border:1px solid var(--line);border-radius:7px;padding:8px 10px;cursor:pointer;transition:border-color .12s,transform .05s}.bg-btn:hover:not(:disabled){border-color:var(--accent)}.bg-btn:active:not(:disabled){transform:translateY(1px)}.bg-go{background:linear-gradient(90deg,var(--accent),#3aa0d8);border:none;color:#05121c;font-weight:700;flex:1}.bg-mini{padding:8px 10px}.bg-help-btn{color:var(--amber);border-color:#ffcf5a80;font-weight:600}.bg-help-btn:hover{border-color:var(--amber)}.bg-phase{font-size:.74rem;color:#bcd4e0;text-align:center;background:var(--panel-2);border:1px solid 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