/* Roman Numeral Converter — page-specific styles */

.mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9375em;
  letter-spacing: 0.02em;
}

/* Side-by-side bi-directional fields (stacked on mobile) */
.rn-grid {
  display: grid;
  gap: 1rem;
}
@media (min-width: 700px) {
  .rn-grid { grid-template-columns: 1fr 1fr; align-items: start; }
}

.field-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}
.field-head label { margin-bottom: 0.25rem; }
.field-head .btn-copy { min-height: 32px; }

.rn-roman-input {
  font-size: 1.25rem;
  letter-spacing: 0.05em;
}

/* Plain-text pipe fallback for vinculum values */
.rn-plain {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.75rem;
  padding: 0.625rem 0.75rem;
  background: var(--color-bg, #f8f8f8);
  border: 1px solid var(--color-border, #e2e2e2);
  border-radius: 8px;
}
.rn-plain-label {
  font-size: 0.8125rem;
  color: var(--color-text-light, #666);
  flex-basis: 100%;
}
.rn-plain code { font-size: 1rem; word-break: break-all; }
.rn-plain .btn-copy { min-height: 44px; }

.rn-actions { margin-top: 0.75rem; }

/* Date tab */
.rn-date-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}
.rn-date-options { margin-top: 0.5rem; }

.rn-date-result { margin-top: 1rem; }
.rn-date-preview {
  font-size: clamp(3rem, 10vw, 4.5rem); /* 48px minimum per spec */
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: 0.03em;
  overflow-wrap: anywhere;
}

/* Working trace panel */
.trace-panel {
  margin-top: 1.25rem;
  border-top: 1px solid var(--color-border, #e2e2e2);
  padding-top: 0.75rem;
}
.trace-panel summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9375rem;
  padding: 0.5rem 0;
  min-height: 44px;
  display: flex;
  align-items: center;
}
.trace-panel summary:focus-visible {
  outline: 2px solid var(--color-primary, #F54900);
  outline-offset: 2px;
}
.trace-body { padding: 0.5rem 0; }
.trace-title { font-size: 0.875rem; font-weight: 600; margin-bottom: 0.5rem; }
.trace-empty { font-size: 0.875rem; color: var(--color-text-light, #666); }
.trace-note { font-size: 0.8125rem; color: var(--color-text-light, #666); margin-top: 0.5rem; }
.trace-table { background: var(--color-white, #fff); }