/* ── Metronome — tool-specific styles ──────────────────────────────────────
   Global styles are inherited from /css/style.css.
   All colours reference CSS custom properties where possible.
   ────────────────────────────────────────────────────────────────────────── */

:root {
  --met-accent: #e67e22;
  --met-beat:   color-mix(in srgb, var(--border-color) 70%, transparent);
}

/* ── Card ──────────────────────────────────────────────────────────────── */
.met-card {
  background: var(--bg-card);
  border: 1.5px solid var(--border-color);
  border-radius: 20px;
  box-shadow: var(--shadow-sm);
  max-width: 520px;
  margin: 0 auto;
  padding: 1.5rem;
  display: grid;
  gap: 1.25rem;
}

/* ── BPM display ───────────────────────────────────────────────────────── */
.met-bpm-display {
  display: grid;
  gap: 0.25rem;
  justify-items: center;
  text-align: center;
}

.met-bpm-value {
  margin: 0;
  font-size: clamp(3rem, 14vw, 4.5rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  color: var(--text-primary);
  transition: transform 80ms ease-out;
}

.met-bpm-value.met-pulse {
  transform: scale(1.06);
}

.met-bpm-unit {
  margin: 0;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.met-marking-label {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--met-accent);
}

/* ── Beat dots ─────────────────────────────────────────────────────────── */
.met-beat-dots {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.6rem;
  min-height: 28px;
}

.met-beat-dot {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid var(--border-color);
  background: transparent;
  transition: background 60ms ease-out, border-color 60ms ease-out, transform 80ms ease-out;
}

.met-beat-dot.met-beat-dot--first {
  width: 22px;
  height: 22px;
  border-width: 2.5px;
}

.met-beat-dot.met-active {
  background: var(--met-accent);
  border-color: var(--met-accent);
  transform: scale(1.2);
}

.met-beat-dot.met-beat-dot--first.met-active {
  background: var(--accent);
  border-color: var(--accent);
}

/* ── BPM controls ──────────────────────────────────────────────────────── */
.met-bpm-controls {
  display: grid;
  grid-template-columns: auto auto 1fr auto auto;
  align-items: center;
  gap: 0.5rem;
}

.met-nudge-btn {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: transparent;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.85rem;
  min-width: 40px;
  min-height: 40px;
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition), box-shadow var(--transition);
}

.met-nudge-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.met-nudge-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--focus-ring);
}

.met-bpm-slider {
  width: 100%;
  accent-color: var(--met-accent);
  cursor: pointer;
}

.met-bpm-input-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
}

.met-bpm-input-row label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.met-bpm-input {
  width: 80px;
  padding: 0.4rem 0.5rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-input, var(--bg-primary));
  color: var(--text-primary);
  font-size: 0.9rem;
  font-variant-numeric: tabular-nums;
  text-align: center;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.met-bpm-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--focus-ring);
}

/* ── Tempo marking chips ───────────────────────────────────────────────── */
.met-marking-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.4rem;
}

.met-chip {
  border: 1px solid var(--border-color);
  border-radius: 999px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.4rem 0.75rem;
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}

.met-chip:hover {
  border-color: var(--met-accent);
  color: var(--met-accent);
}

.met-chip:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--focus-ring);
}

.met-chip.met-chip--active {
  background: var(--met-accent);
  border-color: var(--met-accent);
  color: #fff;
}

/* ── Controls ──────────────────────────────────────────────────────────── */
.met-controls {
  display: flex;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.met-controls .btn {
  flex: 1;
  min-width: 120px;
  min-height: 48px;
  font-size: 1rem;
}

.met-btn-start.met-playing {
  background: var(--met-accent);
  border-color: var(--met-accent);
}

.met-tap-hint {
  margin: -0.5rem 0 0;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* ── Settings toggle ───────────────────────────────────────────────────── */
.met-settings-toggle-row {
  display: flex;
  justify-content: center;
}

.met-settings-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.5rem 0.85rem;
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition), box-shadow var(--transition);
  min-height: 44px;
}

.met-settings-toggle:hover {
  color: var(--text-primary);
  border-color: var(--accent);
}

.met-settings-toggle:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--focus-ring);
}

/* ── Settings panel ────────────────────────────────────────────────────── */
.met-settings {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.85rem;
  background: color-mix(in srgb, var(--bg-primary) 60%, transparent);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1rem;
}

.met-settings[hidden] {
  display: none;
}

.met-setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.met-setting-row label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.met-select {
  padding: 0.4rem 0.5rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-input, var(--bg-primary));
  color: var(--text-primary);
  font-size: 0.875rem;
  cursor: pointer;
}

.met-select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--focus-ring);
}

.met-volume-slider {
  width: 120px;
  accent-color: var(--met-accent);
  cursor: pointer;
}

.met-setting-row--check {
  justify-content: flex-start;
}

.met-checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.met-checkbox-label input[type="checkbox"] {
  width: 1.1rem;
  height: 1.1rem;
  accent-color: var(--accent);
  cursor: pointer;
}

/* ── Keyboard hint ─────────────────────────────────────────────────────── */
.met-keyboard-hint {
  margin: 0;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}

/* ── Responsive ────────────────────────────────────────────────────────── */
@media (max-width: 480px) {
  .met-card {
    padding: 1rem;
    gap: 1rem;
  }

  .met-bpm-controls {
    grid-template-columns: auto auto 1fr auto auto;
    gap: 0.35rem;
  }

  .met-nudge-btn {
    min-width: 36px;
    font-size: 0.78rem;
  }

  .met-settings {
    grid-template-columns: 1fr;
  }

  .met-controls .btn {
    min-width: 100px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .met-bpm-value,
  .met-beat-dot {
    transition: none;
  }
}