:root {
  --dial: #fff;
  --indicator: #ff9f1a;
  --inner-ring: #555;
}

.metronome-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.dial-wrapper {
  width: 360px;
  height: 360px;
}

svg {
  width: 100%;
  height: 100%;
}

.outer-circle {
  fill: none;
  stroke: var(--dial);
  stroke-width: 4;
}

.inner-ring-circle {
  fill: none;
  stroke: var(--inner-ring);
  stroke-width: 1.5;
}

.tick {
  fill: var(--indicator);
  stroke: #fff;
  stroke-width: 2;
  cursor: pointer;
}

.tick:hover {
  filter: brightness(1.15);
}

.tick-label {
  fill: var(--muted);
  font-size: 10px;
  text-anchor: middle;
  dominant-baseline: middle;
  pointer-events: none;
}

.center-bpm {
  font-size: 64px;
  font-weight: bold;
  text-anchor: middle;
  dominant-baseline: middle;
  pointer-events: none;
}

.label {
  font-size: 14px;
  color: var(--muted);
}

.controls {
  display: flex;
  gap: 12px;
  margin-top: 4px;
}

select {
  background: #111;
  color: var(--fg);
  border: 1px solid var(--fg);
  padding: 8px 12px;
}

/* =========================
   MOBILE OPTIMIZATION
   ========================= */

@media (max-width: 768px) {

  body {
    margin: 0;
    padding: 0;
  }

  .app-container {
    padding: 10px;
  }

  .logo-title {
    font-size: 28px;
    text-align: center;
  }

  .metronome-wrapper {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .dial-wrapper {
    width: 90vw;
    max-width: 400px;
  }

  svg {
    width: 100%;
    height: auto;
  }

  .center-bpm {
    font-size: 36px;
  }

  .label {
    font-size: 18px;
    margin-top: 10px;
  }

  .controls {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 20px;
  }

  .controls select {
    width: 100%;
    padding: 12px;
    font-size: 16px;
    border-radius: 8px;
  }

  footer {
    margin-top: 30px;
    text-align: center;
  }
}