:root{
  --bg:#0b0e13; /* dark default */
  --surface:#11161f;
  --surface-2:#151b26;
  --text:#e6e9ef;
  --muted:#aab3c5;
  --accent:#4cc2ff;
  --accent-2:#7cf29a;
  --danger:#ff6b6b;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  color-scheme:dark;
}

:root.light{
  --bg:#f6f7fb;
  --surface:#ffffff;
  --surface-2:#f1f3f9;
  --text:#141922;
  --muted:#5d667a;
  --accent:#2563eb;
  --accent-2:#059669;
  --danger:#dc2626;
  color-scheme:light;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.45;
}

.app-header{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 20px; background:var(--surface); box-shadow:var(--shadow);
  position:sticky; top:0; z-index:10;
}
.title h1{margin:0;font-size:20px}
.subtitle{margin:2px 0 0;color:var(--muted);font-size:12px}
.header-actions{display:flex;gap:8px}

.ghost{background:transparent;border:1px solid transparent;color:var(--text);
  padding:8px 10px;border-radius:10px;cursor:pointer}
.ghost:hover{background:var(--surface-2)}

#themeToggle::before{content:"🌙"}
:root.light #themeToggle::before{content:"☀️"}

.menubar{display:flex;align-items:center;gap:12px;padding:8px 20px;background:var(--surface-2);
  position:sticky;top:60px;z-index:9}
.menu-group{position:relative}
.menu-button{background:var(--surface);color:var(--text);border:1px solid #0000;padding:8px 12px;border-radius:10px;cursor:pointer}
.menu-button:hover{border-color:#ffffff22}
.menu-dropdown{position:absolute;inset:auto auto auto 0;transform:translateY(8px);background:var(--surface);border:1px solid #ffffff22;border-radius:12px;box-shadow:var(--shadow);display:none;min-width:220px}
.menu-dropdown[aria-hidden="false"]{display:block}
.menu-dropdown button{width:100%;text-align:left;background:none;border:0;color:var(--text);padding:10px 12px;cursor:pointer}
.menu-dropdown button:hover{background:var(--surface-2)}
.menu-spacer{flex:1}
.doc-chip{font-size:12px;color:var(--muted)}

.layout{display:grid;grid-template-columns:1fr 360px;gap:16px;padding:16px;max-width:1600px;margin:0 auto}
.canvas-pane{background:var(--surface);border-radius:16px;box-shadow:var(--shadow);position:relative;overflow:hidden}
canvas{display:block;width:100%;height:auto;aspect-ratio:16/9;background:#0b0f17}
.legend{position:absolute;bottom:12px;left:12px;color:var(--muted);font-size:12px;background:rgba(0,0,0,.3);padding:6px 10px;border-radius:999px;backdrop-filter:blur(6px)}
.dot{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:6px}
.dot-green{background:var(--accent-2)}
.dot-orange{background:#f59e0b}
.dot-blue{background:var(--accent)}
.dot-teal{background:#4ecdc4}
.dot-red{background:var(--danger)}

.control-pane{display:flex;flex-direction:column;gap:16px}
.panel{background:var(--surface);border-radius:16px;box-shadow:var(--shadow);padding:14px}
.panel h3{margin:4px 0 12px;font-size:14px;color:var(--muted);letter-spacing:.02em;text-transform:uppercase}
.panel .panel-head{display:flex;align-items:center;justify-content:space-between;margin:-6px -6px 8px}

.controls-row{display:flex;gap:8px}
.panel .grid3 + .controls-row{margin-top:8px}
.checkbox-list{display:grid;gap:6px}
.checkbox-list label{display:flex;align-items:center;gap:8px}
.grid3{grid-template-columns:repeat(3,1fr);display:grid}

button.primary,button.secondary,button.danger,button.menu-button{
  font-weight:600
}
button.primary{background:var(--accent);border:0;color:white;padding:10px 14px;border-radius:12px;cursor:pointer}
button.primary:hover{filter:brightness(1.05)}
button.secondary{background:var(--surface-2);border:1px solid #ffffff22;color:var(--text);padding:10px 14px;border-radius:12px;cursor:pointer}
button.secondary:hover{border-color:#ffffff44}
button.secondary.danger{border-color:transparent;background:var(--danger);color:#fff}

.field{display:grid;gap:6px;margin-top:10px}
input[type="range"]{width:100%}

.indicators{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.badge{background:var(--surface-2);border:1px solid #ffffff22;border-radius:999px;padding:6px 10px;color:var(--muted);white-space:nowrap}
.badge span{color:var(--text);font-weight:700;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;display:inline-block;width:6ch;min-width:6ch;max-width:6ch;text-align:right;}

select{width:100%;padding:10px;border-radius:12px;background:var(--surface-2);color:var(--text);border:1px solid #ffffff22}
select:focus{outline:2px solid var(--accent)}

.logs{padding-bottom:8px}
.log-view{height:210px;overflow:auto;background:var(--surface-2);border-radius:12px;border:1px solid #ffffff22;padding:8px;font-family:ui-monospace, SFMono-Regular, Menlo, monospace;font-size:12px;white-space:pre-wrap}

dialog{border:0;border-radius:16px;padding:18px;background:var(--surface);color:var(--text);box-shadow:var(--shadow);max-width:560px}
dialog::backdrop{background:rgba(0,0,0,.5)}

@media (max-width: 1100px){
  .layout{grid-template-columns:1fr}
}