:root{--bg: #0a0c12;--panel: #12151f;--panel-2: #1a1f2e;--line: #283044;--text: #e6ebf5;--muted: #8a93a8;--accent: #4cc2ff;--accent-2: #ff5ea8;--pass: #3ddc84;--fail: #ff5c5c;color-scheme:dark}*{box-sizing:border-box}html,body{margin:0;height:100%;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-text-size-adjust:100%;overscroll-behavior:none}#app{height:100%}.layout{display:grid;grid-template-columns:1fr 360px;height:100%;width:100%}.stage{position:relative;background:#05060a;display:flex;align-items:center;justify-content:center;overflow:hidden;min-width:0;min-height:0}canvas#sim{width:100%;height:100%;display:block;touch-action:none;image-rendering:pixelated}.overlay-readouts{position:absolute;top:10px;left:10px;pointer-events:none}.readouts{display:flex;flex-wrap:wrap;gap:6px;background:#0a0c12b3;backdrop-filter:blur(6px);border:1px solid var(--line);border-radius:8px;padding:8px 10px}.readout{display:flex;flex-direction:column;min-width:64px}.readout-label{font-size:10px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}.readout-val{font-variant-numeric:tabular-nums;font-size:15px;font-weight:600}.sidebar{background:var(--panel);border-left:1px solid var(--line);overflow-y:auto;padding:12px}.app-title{font-size:16px;font-weight:700;margin:4px 4px 12px}.app-title small{display:block;font-weight:400;color:var(--muted);font-size:11px;margin-top:2px}.panel-section{background:var(--panel-2);border:1px solid var(--line);border-radius:10px;padding:10px 12px;margin-bottom:10px}.section-title{margin:0 0 8px;font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}.btn-row{display:flex;flex-wrap:wrap;gap:6px}.btn{background:#232a3d;color:var(--text);border:1px solid var(--line);border-radius:8px;padding:9px 12px;font-size:13px;cursor:pointer;flex:1 1 auto;min-height:40px;min-width:56px;transition:background .12s,border-color .12s}.btn:hover{background:#2c3550}.btn:active{transform:translateY(1px)}.btn.active{background:var(--accent);color:#05101a;border-color:var(--accent);font-weight:600}.archive-item{text-align:left;font-size:12px;font-variant-numeric:tabular-nums}.slider{margin:10px 0}.slider-label{display:flex;justify-content:space-between;font-size:12px;margin-bottom:4px;color:var(--text)}.slider-val{color:var(--accent);font-variant-numeric:tabular-nums}input[type=range]{width:100%;accent-color:var(--accent);height:28px}.field-row{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:13px;margin-bottom:6px}.select{background:#232a3d;color:var(--text);border:1px solid var(--line);border-radius:8px;padding:8px;font-size:13px;min-height:40px}.checkbox{display:flex;align-items:center;gap:8px;font-size:13px;margin:8px 0}.checkbox input{width:18px;height:18px;accent-color:var(--accent)}.qd-status{font-size:12px;color:var(--muted);margin:8px 0;font-variant-numeric:tabular-nums}.archive-header,.archive-empty{font-size:11px;color:var(--muted);margin:6px 0}.archive-list{display:flex;flex-direction:column;gap:4px;max-height:220px;overflow-y:auto}.hidden{display:none}.diag-report{font-size:12px}.diag-summary{font-weight:700;padding:6px 8px;border-radius:6px;margin-bottom:8px}.diag-summary.pass{background:#3ddc8426;color:var(--pass)}.diag-summary.fail{background:#ff5c5c26;color:var(--fail)}.diag-check{display:flex;gap:8px;padding:6px 0;border-top:1px solid var(--line)}.diag-icon{font-weight:700}.diag-check.pass .diag-icon{color:var(--pass)}.diag-check.fail .diag-icon{color:var(--fail)}.diag-name{font-weight:600}.diag-detail{color:var(--muted);font-size:11px;white-space:pre-wrap;word-break:break-word}.fatal{max-width:640px;margin:8vh auto;padding:28px;background:var(--panel);border:1px solid var(--line);border-radius:14px}.fatal h1{margin-top:0;font-size:22px}.fatal code{background:#05060a;padding:2px 6px;border-radius:5px}.fatal ul{line-height:1.6}.fatal .err{color:var(--fail);font-family:ui-monospace,monospace;font-size:13px;white-space:pre-wrap;background:#05060a;padding:10px;border-radius:8px;margin-top:12px}@media (max-width: 820px){.layout{grid-template-columns:1fr;grid-template-rows:minmax(45vh,1fr) auto}.sidebar{border-left:none;border-top:1px solid var(--line);max-height:55vh}}