.tool-workspace {
  position: relative;
  display: grid;
  grid-template-columns: minmax(300px, 0.88fr) minmax(0, 1.12fr);
  gap: var(--space-4);
  align-items: start;
}

.tool-workspace::before {
  content: "";
  position: absolute;
  top: 2.1rem;
  left: 38%;
  right: 38%;
  height: 1px;
  background: var(--color-line-strong);
  opacity: 0.46;
}

.tool-panel {
  border-top: 4px solid var(--color-primary);
  position: relative;
}

.tool-panel::before {
  content: "input module";
  position: absolute;
  top: 0.68rem;
  right: 0.78rem;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 800;
  text-transform: uppercase;
}

.tool-panel h2 {
  margin-bottom: var(--space-2);
}

.tool-panel--mock {
  border-top-color: var(--color-warning);
}

.calculator-form {
  display: grid;
  gap: var(--space-4);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.field-pair {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(106px, 0.42fr);
  gap: var(--space-2);
}

.duration-field-group {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-2);
  min-width: 0;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background:
    linear-gradient(rgba(17, 24, 22, 0.025) 1px, transparent 1px) 0 0 / 16px 16px,
    var(--color-surface-muted);
  margin: 0;
  padding: var(--space-3);
}

.duration-field-group legend {
  grid-column: 1 / -1;
  color: var(--color-muted-strong);
  padding: 0;
}

.field {
  display: grid;
  gap: 0.32rem;
}

.field__label {
  color: var(--color-muted-strong);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 800;
}

.field__control {
  position: relative;
  display: block;
}

.field__control input {
  padding-right: 3.15rem;
}

.field__suffix {
  position: absolute;
  top: 50%;
  right: 0.72rem;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  pointer-events: none;
  transform: translateY(-50%);
}

.calculator-form .button {
  justify-self: start;
  min-width: 7.5rem;
}

.result-box {
  position: relative;
  display: grid;
  gap: var(--space-4);
  border-left: 4px solid var(--color-primary);
}

.result-box::before {
  content: "measurement";
  position: absolute;
  top: 0.68rem;
  right: 0.78rem;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 800;
  text-transform: uppercase;
}

.result-box__header {
  display: grid;
  gap: var(--space-2);
  padding-right: 5.8rem;
}

.result-box__stage {
  justify-self: start;
  border: 1px solid rgba(43, 104, 113, 0.22);
  border-radius: var(--radius-sm);
  background: rgba(225, 238, 240, 0.62);
  color: var(--color-primary-dark);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 800;
  line-height: 1.3;
  padding: 0.12rem 0.38rem;
  text-transform: uppercase;
}

.result-box__title {
  color: var(--color-primary-dark);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  line-height: 1.35;
  margin-bottom: 0;
  text-transform: uppercase;
}

.result-box__value {
  display: block;
  color: var(--color-text-strong);
  font-family: var(--font-mono);
  font-size: 2.18rem;
  font-variant-numeric: tabular-nums;
  line-height: 1.12;
  overflow-wrap: anywhere;
}

.result-box__description {
  color: var(--color-muted);
  font-size: 0.88rem;
  margin-bottom: 0;
}

.result-box__details {
  display: grid;
  gap: var(--space-2);
}

.result-box__details .result-box__stage {
  background: rgba(241, 245, 240, 0.86);
  color: var(--color-muted-strong);
}

.result-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-border-strong);
  margin: 0;
  overflow: hidden;
}

.result-list__row {
  min-width: 0;
  border: 0;
  border-radius: 0;
  background: rgba(241, 245, 240, 0.94);
  padding: 0.62rem 0.72rem;
}

.result-list__row:last-child:nth-child(odd) {
  grid-column: 1 / -1;
}

.result-list dt {
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 800;
}

.result-list dd {
  margin: 0.12rem 0 0;
  color: var(--color-text-strong);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-variant-numeric: tabular-nums;
  font-weight: 800;
  overflow-wrap: anywhere;
}

.form-error {
  border: 1px solid rgba(138, 90, 18, 0.38);
  border-radius: var(--radius-sm);
  background: #f7ecd6;
  color: var(--color-warning);
  margin: 0;
  padding: var(--space-3);
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: none;
  max-width: 100%;
}

.comparison-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}

.comparison-table caption {
  background:
    linear-gradient(90deg, rgba(43, 104, 113, 0.08), transparent 18rem),
    var(--color-console-muted);
  color: var(--color-text-strong);
  font-family: var(--font-mono);
  font-weight: 800;
  padding: 0.72rem 0.9rem;
  text-align: left;
}

.comparison-table th,
.comparison-table td {
  border-top: 1px solid var(--color-border);
  padding: 0.72rem 0.9rem;
  text-align: left;
  vertical-align: top;
}

.comparison-table thead th {
  background: var(--color-surface-muted);
  color: var(--color-muted-strong);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  white-space: nowrap;
}

.comparison-table tbody tr:nth-child(even) {
  background: rgba(241, 245, 240, 0.72);
}

.comparison-table tbody th {
  color: var(--color-text-strong);
  font-weight: 800;
}

.comparison-table td:not(:first-child) {
  font-variant-numeric: tabular-nums;
}

[data-result="strong-warning"] {
  border-left: 4px solid var(--color-warning);
  background: #f7ecd6;
  border-radius: var(--radius-sm);
  color: #5c430a;
  padding: var(--space-3) var(--space-4);
}

.dns-boundary-note {
  border: 1px solid rgba(39, 107, 136, 0.3);
  border-left: 4px solid var(--color-info);
  background:
    linear-gradient(rgba(39, 107, 136, 0.04) 1px, transparent 1px) 0 0 / 20px 20px,
    #edf5f6;
  padding: var(--space-4);
}

.dns-boundary-note p {
  color: var(--color-muted-strong);
}

.dns-answer-table td,
.dns-answer-table th {
  overflow-wrap: anywhere;
}

.dns-cname-chain {
  margin: var(--space-3) 0 0;
}

.mock-form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.mock-field {
  display: grid;
  gap: 0.25rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background:
    linear-gradient(rgba(17, 24, 22, 0.025) 1px, transparent 1px) 0 0 / 16px 16px,
    rgba(241, 245, 240, 0.86);
  padding: 0.85rem;
}

.mock-field span {
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 800;
}

.mock-field strong {
  font-family: var(--font-mono);
  font-size: 1.16rem;
}

.mock-field em {
  color: var(--color-muted);
  font-style: normal;
}

@media (max-width: 920px) {
  .tool-workspace {
    grid-template-columns: 1fr;
  }

  .tool-workspace::before {
    display: none;
  }
}

@media (max-width: 560px) {
  .field-pair,
  .duration-field-group,
  .result-list {
    grid-template-columns: 1fr;
  }

  .calculator-form .button {
    width: 100%;
  }

  .tool-panel::before {
    position: static;
    justify-self: start;
    display: block;
    margin-bottom: var(--space-2);
  }

  .result-box::before {
    position: static;
    justify-self: start;
    order: -1;
  }

  .result-box__header {
    padding-right: 0;
  }

  .result-box__value {
    font-size: 1.64rem;
  }

  .comparison-table {
    min-width: 560px;
  }
}