:root {
  color-scheme: dark;
  --bg: #07090c;
  --panel: #10161c;
  --line: #24303c;
  --amber: #e8b44c;
  --amber-dim: rgba(232, 180, 76, 0.18);
  --cyan: #3ad7c0;
  --text: #e8edf2;
  --muted: #9aa5b1;
  --danger: #e05a4f;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; background: var(--bg); color: var(--text); font-family: var(--mono); }
body { min-height: 100dvh; }
#app { min-height: 100dvh; display: grid; grid-template-rows: auto 1fr auto; }
.topbar, .dock {
  display: flex; align-items: center; gap: 12px; padding: 10px 16px;
  border-bottom: 1px solid var(--line); background: var(--panel); flex-wrap: wrap;
}
.dock { border-bottom: 0; border-top: 1px solid var(--line); justify-content: space-between; }
.brand { letter-spacing: 0.14em; font-size: 12px; font-weight: 600; }
.brand span { color: var(--amber); }
.meta, .caption { color: var(--muted); font-size: 12px; }
.loops { display: flex; flex-wrap: wrap; gap: 6px; margin-left: auto; }
.loops button, .next, .restart {
  font: inherit; cursor: pointer; color: var(--text); background: transparent;
  border: 1px solid var(--line); border-radius: 999px; padding: 4px 10px; font-size: 11px; letter-spacing: 0.08em;
}
.loops button.active, .next { background: var(--amber); color: #111; border-color: var(--amber); }
.stage-wrap { display: grid; place-items: center; padding: 12px 16px 8px; min-height: 0; }
.stage {
  position: relative; width: min(100%, 1280px); aspect-ratio: 16 / 9;
  background: #05070a; border: 1px solid var(--line); border-radius: 10px; overflow: hidden;
  box-shadow: 0 24px 80px rgba(0,0,0,0.45);
}
.stage img { display: block; width: 100%; height: 100%; object-fit: contain; background: #05070a; }
.stage.loading::after {
  content: "Loading TO-BE MILL frame…"; position: absolute; inset: 0;
  display: grid; place-items: center; color: var(--muted); font-size: 13px; background: rgba(7,9,12,0.55);
}
.stage.error .fallback {
  position: absolute; inset: 0; display: grid; place-items: center; background: var(--bg);
  color: var(--danger); padding: 24px; text-align: center;
}
.hotspot {
  position: absolute; border: 2px solid transparent; border-radius: 10px;
  background: transparent; cursor: pointer; padding: 0;
}
.hotspot:hover, .hotspot:focus-visible {
  outline: none; border-color: var(--amber);
  box-shadow: 0 0 0 6px var(--amber-dim), 0 0 28px rgba(232,180,76,0.35);
}
.hotspot .hit { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.dock-left, .dock-right { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.dots { display: flex; gap: 6px; }
.dots button {
  width: 10px; height: 10px; padding: 0; border-radius: 50%; background: var(--line);
  border: 1px solid var(--line); cursor: pointer;
}
.dots button.active { background: var(--amber); border-color: var(--amber); }
.frame-index { color: var(--cyan); font-size: 12px; }
@media (max-width: 720px) {
  .loops { margin-left: 0; width: 100%; }
  .stage-wrap { padding: 8px; }
  .dock { align-items: stretch; flex-direction: column; }
  .next, .restart { width: 100%; text-align: center; padding: 10px 12px; }
}