:root {
  --bg: #0a0710;
  --panel: #171028;
  --ink: #f5e7b8;
  --neon: #ff5ee3;
  --neon2: #57f3ff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Trebuchet MS", "Verdana", sans-serif;
  background: radial-gradient(circle at 20% 10%, #22183f, var(--bg) 40%, #050308);
  color: var(--ink);
}

.app {
  width: min(1100px, 94vw);
  margin: 1.2rem auto 2rem;
}

header h1 {
  margin: 0;
  color: var(--neon2);
  text-shadow: 0 0 14px #1de7ff66;
}

header p {
  margin: 0.35rem 0 1rem;
  opacity: 0.9;
}

.controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.75rem;
  background: linear-gradient(180deg, #20153a, #140d25);
  border: 1px solid #3e2b66;
  border-radius: 10px;
  padding: 0.85rem;
  box-shadow: inset 0 0 0 1px #0006, 0 10px 30px #0006;
}

label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.84rem;
}

input, select, button {
  border: 1px solid #4b3b70;
  background: #0f0a1c;
  color: var(--ink);
  border-radius: 6px;
  padding: 0.45rem 0.55rem;
}

.buttons {
  display: flex;
  gap: 0.5rem;
  align-items: end;
  flex-wrap: wrap;
}

button {
  cursor: pointer;
}

button:hover {
  border-color: #8b78c7;
}

.stage-wrap {
  margin-top: 0.9rem;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid #413160;
  box-shadow: 0 14px 34px #0008;
}

#stage {
  width: 100%;
  height: auto;
  display: block;
  background: #07050d;
}