.tool-header-action {
  color: var(--brand);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 18px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface-soft);
}

.metric-grid article {
  min-height: 112px;
  padding: 18px;
  border-right: 1px solid var(--line);
}

.metric-grid article:last-child {
  border-right: 0;
}

.metric-grid p {
  margin-bottom: 7px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.metric-grid strong {
  display: block;
  overflow-wrap: anywhere;
  font-size: 23px;
  line-height: 1.35;
}

.tool-form {
  display: grid;
  gap: 18px;
}

.tool-form textarea,
.tool-form input[type="text"] {
  width: 100%;
  border: 1px solid #bdc9c3;
  border-radius: 6px;
  outline: none;
  background: #fff;
  color: var(--ink);
}

.tool-form textarea {
  min-height: 170px;
  padding: 14px;
  resize: vertical;
  line-height: 1.65;
}

.tool-form input[type="text"] {
  min-height: 52px;
  padding: 0 14px;
}

.tool-form textarea:focus,
.tool-form input[type="text"]:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(23, 107, 86, 0.13);
}

.mode-tabs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 6px;
}

.mode-tabs button {
  min-height: 44px;
  border: 0;
  border-right: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  font-weight: 700;
}

.mode-tabs button:last-child {
  border-right: 0;
}

.mode-tabs button[aria-pressed="true"] {
  background: var(--brand-dark);
  color: #fff;
}

.text-output {
  min-height: 150px !important;
  background: var(--surface-soft) !important;
}

.output-panel {
  padding: 22px;
  border: 1px solid var(--line);
  border-left: 5px solid var(--brand);
  border-radius: 6px;
  background: var(--surface-soft);
}

.output-panel p {
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.output-panel strong {
  display: block;
  overflow-wrap: anywhere;
  font-size: 25px;
  line-height: 1.5;
}

.subtle-note {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 700px) {
  .mode-tabs,
  .metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .mode-tabs button:nth-child(2),
  .metric-grid article:nth-child(2) {
    border-right: 0;
  }

  .mode-tabs button:nth-child(-n + 2),
  .metric-grid article:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }
}