/* The calculator shares the article layout; only its form needs extra styling. */
.tool-calc { margin: 0; padding: 28px; border: 1px solid var(--line); border-radius: 12px; }
.tool-calc__units { display: inline-flex; gap: 4px; margin-bottom: 24px; padding: 4px; border: 1px solid var(--line); border-radius: 10px; background: var(--paper); }
.tool-calc__units button { min-width: 64px; min-height: 44px; padding: 10px 16px; border: 0; border-radius: 6px; background: transparent; color: var(--muted); font: 500 14px / 1.5 'DM Sans', sans-serif; cursor: pointer; touch-action: manipulation; }
.tool-calc__units button:hover { background: #f1f5f2; color: var(--dark); }
.tool-calc__units button[aria-pressed='true'] { background: var(--dark); color: #fff; }
.tool-calc__fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.tool-calc label { display: grid; min-width: 0; gap: 9px; font-size: 14px; font-weight: 500; line-height: 1.5; }
.tool-calc input { width: 100%; min-width: 0; min-height: 60px; padding: 12px 16px; border: 1px solid var(--line); border-radius: 6px; background: var(--paper); color: var(--ink); font: 500 26px / 1.25 'DM Sans', sans-serif; font-variant-numeric: tabular-nums; }
.tool-calc input:hover { border-color: #9baa9f; }
.tool-calc input:focus { border-color: var(--dark); outline: 2px solid var(--dark); outline-offset: 3px; }
.tool-calc__result { margin-top: 24px; padding: 24px; border-radius: 8px; background: #f5f7f5; }
.tool-calc__result p { font-size: 14px; line-height: 1.5; color: var(--muted); }
.tool-calc__result strong { display: block; margin-top: 10px; color: var(--dark); font-size: clamp(38px, 4.2vw, 52px); font-weight: 500; line-height: 1.15; letter-spacing: -.05em; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.tool-calc__result small { display: block; margin-top: 12px; color: var(--muted); font-size: 14px; line-height: 1.6; overflow-wrap: anywhere; }
.tool-calc__note { margin-top: 18px; padding-left: 16px; border-left: 2px solid var(--line); color: var(--muted); font-size: 14px; line-height: 1.75; }
.article-meta span:last-child { padding-left: 14px; border-left: 1px solid var(--line); }
@media (max-width: 640px) {
  .tool-calc { padding: 20px; }
  .tool-calc__fields { gap: 14px; }
  .tool-calc input { padding-inline: 12px; font-size: 24px; }
  .tool-calc__result { padding: 20px; }
  .article-meta span:last-child { flex-basis: 100%; padding: 0; border: 0; }
}
@media (max-width: 359px) {
  .tool-calc { padding: 16px; }
  .tool-calc__fields { gap: 12px; }
  .tool-calc input { padding-inline: 10px; }
  .tool-calc__result { padding: 16px; }
  .tool-calc__result strong { font-size: 34px; }
}