:root{--bg:#101418;--panel:#1a2027;--text:#e8edf2;--muted:#93a1b0;--accent:#4fc3f7;--idle:#2a3139;--tx:#c62828;--rx:#2e7d32;--busy:#f9a825;--collision:#ff6f00;--locked:#5f6368;--green:#43a047;--blue:#1e88e5;--grey:#757575;--red:#e53935;--amber:#ffb300;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box}html,body{overscroll-behavior:none;background:var(--bg);height:100%;color:var(--text);margin:0;font:16px/1.4 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;overflow:hidden}#app{flex-direction:column;display:flex;position:fixed;inset:0}.layer-screen,.screen{flex-direction:column;flex:1;min-height:0;display:flex}.audio-host{width:0;height:0;position:absolute;overflow:hidden}.btn,.icon-btn,.link-btn{font:inherit;color:var(--text);background:var(--panel);cursor:pointer;border:1px solid #33404d;border-radius:10px;min-height:44px;padding:10px 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