/* MIDI status + "?" help bubble for the companion trainers (arpeggio, sight
   reading). Mirrors .midi-status / .info-tip / .midi-help in styles.css so
   every page explains MIDI the same way. Markup comes from
   js/midi/midiHelp.js → renderMidiHint(). */
.midi-status[hidden] { display: none; }
.midi-status {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.06em;
  text-align: right;
  color: var(--ivory-dim);
  line-height: 1.4;
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
}
.info-tip {
  position: relative;
  display: inline-flex;
  align-items: center;
  margin-left: 0.35rem;
  cursor: help;
  outline: none;
}
.info-tip-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.05rem;
  height: 1.05rem;
  border-radius: 50%;
  border: 1px solid var(--gold);
  color: var(--gold);
  font-family: var(--font-mono, monospace);
  font-size: 0.7rem;
  font-weight: 600;
  line-height: 1;
  opacity: 0.7;
  transition: opacity 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.info-tip:hover .info-tip-icon,
.info-tip.open .info-tip-icon {
  opacity: 1;
  color: var(--gold-bright);
  border-color: var(--gold-bright);
}
.info-tip:focus { outline: none; }
.info-tip:focus-visible .info-tip-icon { outline: 1px solid var(--gold-bright); outline-offset: 2px; }

/* Generic bubble (settings help): opens above the "?", centered. */
.info-tip-bubble {
  position: absolute;
  bottom: calc(100% + 0.5rem);
  left: 50%;
  transform: translate(-50%, 4px);
  width: max-content;
  max-width: min(260px, calc(100vw - 32px));
  white-space: normal;
  text-align: left;
  padding: 0.55rem 0.75rem;
  background: rgba(20, 18, 16, 0.97);
  border: 1px solid rgba(var(--gold-bright-rgb), 0.35);
  border-radius: 4px;
  color: #f2e9dc;
  font-family: var(--font-display, serif);
  font-size: 0.78rem;
  line-height: 1.4;
  letter-spacing: 0;
  text-transform: none;
  box-shadow: 0 6px 22px rgba(0, 0, 0, 0.5);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
  z-index: 1000;
}
.info-tip.open .info-tip-bubble {
  opacity: 1;
  transform: translate(-50%, 0);
  pointer-events: auto;
}

.midi-help { pointer-events: auto; vertical-align: middle; }
.midi-help .info-tip-bubble {
  position: absolute;
  top: calc(100% + 0.5rem);
  bottom: auto;
  left: auto;
  right: -0.4rem;
  width: min(280px, calc(100vw - 32px));
  max-width: none;
  white-space: normal;
  text-align: left;
  padding: 0.55rem 0.75rem;
  background: rgba(20, 18, 16, 0.97);
  border: 1px solid rgba(var(--gold-bright-rgb), 0.35);
  border-radius: 4px;
  color: #f2e9dc;
  font-family: var(--font-display, serif);
  font-size: 0.78rem;
  line-height: 1.35;
  letter-spacing: 0;
  text-transform: none;
  box-shadow: 0 6px 22px rgba(0, 0, 0, 0.5);
  opacity: 0;
  transform: translateY(-4px);
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
  z-index: 1000;
}
.midi-help.open .info-tip-bubble {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.midi-help .info-tip-bubble::after {
  content: '';
  position: absolute;
  bottom: 100%;
  right: 0.55rem;
  border: 5px solid transparent;
  border-bottom-color: rgba(var(--gold-bright-rgb), 0.35);
}
.midi-help .info-tip-bubble a { color: var(--gold-bright); text-decoration: underline; }

/* "This trainer listens to a MIDI keyboard" card on the arpeggio and
   sight-reading level maps. Copy comes from gateCopy() in midiHelp.js. */
.midi-gate {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  padding: 1.1rem 1.3rem;
  margin-bottom: 2.4rem;
  border: 1px solid rgba(var(--gold-rgb), 0.5);
  border-radius: 6px;
  background: linear-gradient(135deg, rgba(var(--gold-rgb), 0.08), rgba(var(--gold-rgb), 0.02));
}
.midi-gate.shake { animation: gateShake 0.45s ease; }
.gate-icon { color: var(--gold); flex-shrink: 0; }
.gate-text { flex: 1; min-width: 0; }
.gate-title { font-size: 1.2rem; font-weight: 500; }
.gate-sub { color: var(--ivory-dim); font-size: 1rem; line-height: 1.4; margin-top: 0.2rem; }
.gate-sub a { color: var(--gold); white-space: nowrap; }
@media (max-width: 600px) {
  .midi-gate { flex-direction: column; align-items: flex-start; }
}
@keyframes gateShake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(5px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(3px); }
}