:root {
  --bg: #06070a;
  --text: #f4f7fb;
  --muted: #9aa9b8;
  --line: rgba(255, 255, 255, 0.12);
  --live: #37e58a;
  --warn: #ffbf5b;
  --hot: #ff4f6f;
  --cyan: #53d9ff;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.stage {
  position: relative;
  width: 100vw;
  height: 100vh;
  background: #050608;
}

#field {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.hud {
  position: absolute;
  top: 18px;
  left: 18px;
  width: min(430px, calc(100vw - 36px));
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(5, 8, 12, 0.72);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border: 1px solid rgba(83, 217, 255, 0.4);
  border-radius: 8px;
  color: var(--cyan);
  font-weight: 700;
  font-size: 0.92rem;
  font-family: "JetBrains Mono", ui-monospace, monospace;
}

h1 {
  margin: 0;
  font-size: 1.45rem;
  font-weight: 650;
  letter-spacing: 0;
}

p {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.status-row,
.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-top: 14px;
}

.explain {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.explain h2 {
  margin: 0 0 6px;
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0;
}

.explain p {
  margin: 0 0 9px;
  color: #adbac7;
  font-size: 0.78rem;
  line-height: 1.55;
}

.home-link {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  margin-top: 2px;
  padding: 0 10px;
  border: 1px solid rgba(83, 217, 255, 0.34);
  border-radius: 8px;
  color: var(--cyan);
  background: rgba(83, 217, 255, 0.08);
  text-decoration: none;
  font-size: 0.78rem;
  font-weight: 700;
}

.home-link:hover {
  border-color: rgba(83, 217, 255, 0.62);
}

.status,
.chip,
button {
  min-height: 32px;
  border-radius: 8px;
  border: 1px solid var(--line);
  padding: 0 10px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0;
}

.status {
  display: inline-flex;
  align-items: center;
}

.status.live {
  color: var(--live);
  border-color: rgba(55, 229, 138, 0.35);
}

.status.connecting {
  color: var(--warn);
  border-color: rgba(255, 191, 91, 0.35);
}

.status.error {
  color: var(--hot);
  border-color: rgba(255, 79, 111, 0.35);
}

button {
  cursor: pointer;
}

button:hover {
  border-color: rgba(83, 217, 255, 0.55);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-top: 14px;
}

.metrics div {
  min-height: 58px;
  padding: 9px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.045);
}

.metrics span,
label span {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
  text-transform: uppercase;
}

.metrics strong {
  display: block;
  margin-top: 6px;
  font-size: 1rem;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  overflow: hidden;
  text-overflow: ellipsis;
}

label {
  flex: 1 1 150px;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--cyan);
}

@media (max-width: 760px) {
  .hud {
    top: 10px;
    left: 10px;
    width: calc(100vw - 20px);
    padding: 12px;
  }

  .metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

}