/* ── Morse Code Translator — tool-specific styles ─────────────────────────────
   Global styles are inherited from /css/style.css.
   Colours reference CSS custom properties only — no hardcoded values.
   ─────────────────────────────────────────────────────────────────────────── */

.mct-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.mct-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card, 8px);
  padding: 1.25rem 1.5rem;
}

/* ── Mode toggle ──────────────────────────────────────────────────────── */

.mct-mode-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.mct-mode-btn {
  padding: 0.55rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 999px;
  background: var(--bg-card);
  color: var(--text-primary);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  transition: border-color var(--transition), background var(--transition), color var(--transition);
}

.mct-mode-btn:hover {
  border-color: var(--accent);
}

.mct-mode-btn.is-active {
  border-color: var(--accent);
  background: var(--accent-light);
  color: var(--accent);
  font-weight: 600;
}

.mct-swap-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-left: auto;
  padding: 0.55rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 999px;
  background: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.85rem;
}

.mct-swap-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ── Audio controls ───────────────────────────────────────────────────── */

.mct-audio-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}

.mct-speed-field {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-left: auto;
  min-width: 220px;
}

.mct-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

.mct-speed-field input[type="range"] {
  flex: 1;
  accent-color: var(--accent);
}

.mct-speed-value {
  min-width: 1.6rem;
  text-align: right;
  font-size: 0.9rem;
  color: var(--text-primary);
}

/* ── Output header ────────────────────────────────────────────────────── */

.mct-output-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.mct-active-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
}

/* ── Reference chart ──────────────────────────────────────────────────── */

.mct-chart-subheading {
  margin: 1.25rem 0 0.6rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.mct-chart-subheading:first-of-type {
  margin-top: 0.5rem;
}

.mct-chart {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(64px, 1fr));
  gap: 0.5rem;
}

.mct-chip {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
  padding: 0.5rem 0.3rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-control, 8px);
  background: var(--bg-input, var(--bg-card));
}

.mct-chip strong {
  font-size: 0.95rem;
  color: var(--text-primary);
}

.mct-chip code {
  font-family: var(--font-mono, monospace);
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 0.05em;
}

/* ── Uses grid ────────────────────────────────────────────────────────── */

.mct-uses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.mct-uses-grid article h3 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
}

.mct-uses-grid article p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

@media (max-width: 640px) {
  .mct-swap-btn {
    margin-left: 0;
  }
  .mct-speed-field {
    margin-left: 0;
    width: 100%;
  }
}