:root{--bg:#050b14;--panel:#0c1828;--text:#e8f3ff;--muted:#7f96b0;--cyan:#3ecbff;--warn:#ffb020;--err:#ff6b6b}
*{box-sizing:border-box}
html,body{height:100%;overflow:hidden}
body{margin:0;display:flex;flex-direction:column;height:100vh;height:100dvh;font-family:system-ui,"Segoe UI","PingFang SC",sans-serif;background:var(--bg);color:var(--text)}
header{display:flex;align-items:center;gap:12px;flex:0 0 auto;padding:8px 12px;border-bottom:1px solid #1a2e40}
.brand{font-weight:800;letter-spacing:.12em;color:var(--cyan);font-size:.8rem;flex:0 0 auto}
.meta{color:var(--muted);font-size:.75rem;flex:1 1 auto;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;text-align:right}
#btnPanel{flex:0 0 auto;padding:6px 10px;font-size:.75rem}
main{flex:1 1 auto;min-height:0;display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:12px;padding:12px;overflow:hidden}
body.panel-collapsed main{grid-template-columns:minmax(0,1fr)}
body.panel-collapsed .panel{display:none}
.stage{position:relative;background:#000;border-radius:12px;overflow:hidden;min-width:0;min-height:0;height:100%}
#screen{width:100%;height:100%;display:block;background:#000;outline:none;cursor:none;object-fit:contain}
.local-cursor{position:absolute;z-index:6;width:18px;height:18px;margin:-2px 0 0 -2px;pointer-events:none;background:linear-gradient(135deg,#fff 0 45%,transparent 46%);filter:drop-shadow(0 0 1px #000) drop-shadow(0 0 2px #3ecbff)}
.hud{position:absolute;left:10px;top:10px;padding:4px 8px;border-radius:8px;background:rgba(0,0,0,.55);font-size:.75rem;color:var(--cyan)}
.nosignal{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;padding:24px;text-align:center;color:#7dd3fc;font:16px/1.5 monospace;background:#0b1220;pointer-events:none;overflow:auto}
.nosignal[hidden]{display:none!important}
.nosignal[hidden],#nosignal[hidden]{display:none!important}
.panel{background:var(--panel);border:1px solid #1e3a4f;border-radius:12px;padding:14px;min-height:0;overflow:auto}
@media(max-width:900px){
  main{grid-template-columns:minmax(0,1fr)}
  .panel{position:fixed;z-index:20;top:52px;right:8px;bottom:8px;width:min(320px,calc(100vw - 16px));box-shadow:0 12px 40px rgba(0,0,0,.45)}
}
.panel h2{margin:14px 0 8px;font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan)}
.panel h2:first-child{margin-top:0}
.row{display:flex;gap:8px;flex-wrap:wrap}
button,.panel select{padding:10px 12px;border-radius:10px;border:0;background:linear-gradient(135deg,var(--cyan),#1aa7d6);color:#041018;font-weight:700;cursor:pointer}
button.ghost{background:transparent;border:1px solid #345;color:var(--muted)}
button.warn{background:linear-gradient(135deg,var(--warn),#e08900)}
button.danger{background:linear-gradient(135deg,var(--err),#d63b3b);color:#fff}
.check{display:flex;gap:8px;align-items:center;color:var(--muted);font-size:.85rem;margin:8px 0}
code{display:block;white-space:pre-wrap;word-break:break-all;font-size:.72rem;color:#9ef;background:#06101c;padding:8px;border-radius:8px}
#btnPanel{padding:6px 10px;font-size:.75rem}
.hint{color:var(--muted);font-size:.75rem}
.hint a{color:var(--cyan)}
select{width:100%}