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

.tzc-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card, 8px);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  margin-bottom: 1.25rem;
}

.tzc-card__heading {
  font-size: 1.05rem;
  margin: 0;
}

.tzc-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  min-width: 0;
}

.tzc-field-grow { flex: 1; }

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

.tzc-help {
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.tzc-input,
.tzc-select {
  width: 100%;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-control, 8px);
  background: var(--bg-input, var(--bg-card));
  color: var(--text-primary);
  font-size: 1rem;
}

.tzc-input:focus-visible,
.tzc-select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.tzc-source-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 720px) {
  .tzc-source-grid { grid-template-columns: 1fr; }
}

.tzc-add-row {
  display: flex;
  gap: 0.6rem;
  align-items: flex-end;
}

@media (max-width: 520px) {
  .tzc-add-row { flex-direction: column; align-items: stretch; }
}

.tzc-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.tzc-error {
  margin: 0;
  color: var(--color-danger, #ef4444);
  font-size: 0.875rem;
}

.tzc-results {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}

.tzc-empty {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
  text-align: center;
  padding: 1.5rem 0;
}

.tzc-result-card {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card, 8px);
  padding: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  background: var(--bg-input, var(--bg-card));
  position: relative;
}

.tzc-result-card__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
}

.tzc-result-city {
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.3;
}

.tzc-result-zone {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-family: var(--font-mono, monospace);
}

.tzc-result-remove {
  border: none;
  background: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 1.1rem;
  line-height: 1;
  padding: 0.15rem 0.35rem;
  border-radius: 6px;
}

.tzc-result-remove:hover {
  color: var(--color-danger, #ef4444);
  background: var(--bg-card);
}

.tzc-result-time {
  font-size: 1.85rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  line-height: 1.15;
}

.tzc-result-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.tzc-badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  font-size: 0.72rem;
  font-weight: 500;
}

.tzc-badge-today {
  color: var(--accent);
  border-color: var(--accent);
}

.tzc-result-copy {
  align-self: flex-start;
  margin-top: 0.15rem;
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-control, 8px);
  background: var(--bg-card);
  color: var(--text-primary);
  cursor: pointer;
  font-size: 0.78rem;
}

.tzc-result-copy:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.tzc-result-card.is-source {
  border-color: var(--accent);
}

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

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

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