:root {
  --bg: #07070d;
  --panel: #151527;
  --ink: #e9edff;
  --line: #333a68;
  --cyan: #4cf0ff;
  --magenta: #ff47f6;
  --amber: #ffd067;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Trebuchet MS", "Verdana", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 15% 8%, #27274a 0%, transparent 45%),
    radial-gradient(circle at 85% 18%, #34173b 0%, transparent 42%),
    var(--bg);
}

.app {
  width: min(1120px, 94vw);
  margin: 1.1rem auto 2rem;
}

header h1 {
  margin: 0;
  color: var(--cyan);
  text-shadow: 0 0 18px #4cf0ff55;
}

header p {
  margin: 0.4rem 0 0.9rem;
  opacity: 0.9;
}

.hud {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 0.55rem;
  margin-bottom: 0.75rem;
}

.stat {
  border: 1px solid var(--line);
  border-radius: 9px;
  background: linear-gradient(180deg, #191a31, #111224);
  padding: 0.45rem 0.65rem;
}

.stat span {
  font-size: 0.72rem;
  opacity: 0.78;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat strong {
  display: block;
  margin-top: 0.15rem;
  font-size: 1.03rem;
}

.controls {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.8rem;
  background: linear-gradient(180deg, #171831, #101020);
  box-shadow: inset 0 0 0 1px #0008, 0 12px 26px #0007;
}

.layer-picks {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.layer-btn,
.nudge,
.actions button {
  border: 1px solid #495183;
  background: #121429;
  color: var(--ink);
  border-radius: 7px;
  padding: 0.45rem 0.62rem;
  font: inherit;
  cursor: pointer;
}

.layer-btn.active {
  border-color: #84b2ff;
  box-shadow: 0 0 0 1px #84b2ff33 inset;
}

.pad {
  margin-top: 0.75rem;
  width: 120px;
  display: grid;
  gap: 0.35rem;
}

.pad > .nudge {
  width: 100%;
}

.mid-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.35rem;
}

.actions {
  margin-top: 0.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.actions .primary {
  border-color: #8df5f8;
  box-shadow: 0 0 14px #4cf0ff33;
}

button:hover {
  border-color: #9eb8ff;
}

.hint,
.status {
  margin: 0.7rem 0 0;
  font-size: 0.86rem;
  opacity: 0.92;
}

.status {
  color: var(--amber);
  min-height: 1.1rem;
}

.stage-wrap {
  margin-top: 0.85rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 14px 34px #0009;
}

#stage {
  width: 100%;
  height: auto;
  display: block;
  background: #05050a;
}

@media (max-width: 700px) {
  .pad {
    width: 100%;
    max-width: 170px;
  }
}