/* Shared chrome for the Python-on-the-GPU demos: a full-window canvas, one
   floating panel, and a drawer holding the Python source and its WGSL. */
:root {
  --bg: #07080c;
  --panel: rgba(14, 16, 24, 0.82);
  --line: rgba(255, 255, 255, 0.12);
  --ink: #e9ecf3;
  --dim: #9aa3b5;
  --accent: #ffcf5a;
  --ok: #7ee2a8;
  --bad: #ff8a7a;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--bg); color: var(--ink); font: 14px/1.45 var(--sans); }
body { overflow: hidden; }
canvas#view { position: fixed; inset: 0; width: 100vw; height: 100vh; display: block; touch-action: none; cursor: crosshair; }

.panel {
  position: fixed; top: 12px; left: 12px; width: min(340px, calc(100vw - 24px));
  background: var(--panel); border: 1px solid var(--line); border-radius: 10px;
  padding: 12px 14px; backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  z-index: 2;
}
.panel h1 { font-size: 17px; margin: 0 0 2px; font-weight: 650; letter-spacing: 0.01em; }
.panel .crumb { font-size: 12px; color: var(--dim); margin: 0 0 8px; }
.panel .crumb a { color: var(--dim); }
.panel p { margin: 0 0 10px; color: var(--dim); font-size: 13px; }
.panel.collapsed .body { display: none; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin: 6px 0; }
.row label { color: var(--dim); font-size: 12px; min-width: 64px; }
.row input[type="range"] { flex: 1; accent-color: var(--accent); }
.row output { font: 12px var(--mono); color: var(--ink); min-width: 44px; text-align: right; }
button, select {
  font: 13px var(--sans); color: var(--ink); background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--line); border-radius: 7px; padding: 5px 10px; cursor: pointer;
}
button:hover, select:hover { background: rgba(255, 255, 255, 0.13); }
button.on { border-color: var(--accent); color: var(--accent); }
.status { display: flex; justify-content: space-between; gap: 8px; margin-top: 8px; font: 12px var(--mono); color: var(--dim); }
.check { font: 12px var(--mono); margin-top: 6px; color: var(--dim); }
.check.ok { color: var(--ok); }
.check.bad { color: var(--bad); }
.hint { font-size: 12px; color: var(--dim); margin-top: 6px; }
.fold { position: absolute; top: 8px; right: 8px; padding: 2px 8px; font-size: 12px; }

#code {
  position: fixed; top: 0; right: 0; bottom: 0; width: min(560px, 100vw);
  background: rgba(10, 11, 17, 0.96); border-left: 1px solid var(--line);
  display: flex; flex-direction: column; z-index: 3;
}
#code[hidden] { display: none; }
#code header { display: flex; align-items: center; gap: 6px; padding: 10px 12px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
#code header .tabs { display: flex; gap: 6px; flex-wrap: wrap; flex: 1; }
#code header .tabs button { font: 12px var(--mono); }
#code .note { padding: 8px 14px; font-size: 12px; color: var(--dim); border-bottom: 1px solid var(--line); margin: 0; }
#code pre { margin: 0; padding: 12px 14px; overflow: auto; flex: 1; font: 12.5px/1.5 var(--mono); color: #d4d9e4; tab-size: 4; }
#code .k { color: #ff9e64; }
#code .n { color: #9ece6a; }
#code .c { color: #6b7389; font-style: italic; }
#code .d { color: #bb9af7; }

#fatal { position: fixed; inset: 0; display: grid; place-items: center; z-index: 5; background: var(--bg); padding: 24px; }
#fatal[hidden] { display: none; }
#fatal .box { max-width: 520px; text-align: center; }
#fatal .msg { white-space: pre-wrap; color: var(--dim); }
#fatal a { color: var(--accent); }

@media (max-width: 640px) {
  .panel { top: auto; bottom: 10px; left: 10px; width: calc(100vw - 20px); max-height: 46vh; overflow: auto; }
  #code { top: 30vh; width: 100vw; border-left: 0; border-top: 1px solid var(--line); }
}