.engineering-tools {
  min-width: 0;
  padding-bottom: calc(var(--portal-fab-size) + var(--space-8));
}

.engineering-tools__intro {
  margin: 0 0 var(--space-5);
  max-width: 80ch;
  color: var(--muted);
  font-size: var(--type-body);
  line-height: 1.6;
}

.engineering-tools__catalog {
  padding: var(--space-6);
}

.engineering-tools__catalog + .engineering-tools__catalog {
  padding-top: var(--space-2);
}

:is(#engineeringToolsView, #portalHelpView) h2.engineering-tools__section-title {
  margin: 0 0 var(--space-2);
  font-size: var(--type-card);
  font-weight: var(--weight-medium);
  line-height: 1.4;
}

.engineering-tools__apps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-2) var(--space-8);
  margin-top: var(--space-6);
}

.engineering-tools__app {
  position: relative;
  isolation: isolate;
  min-width: 0;
  min-height: 88px;
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: var(--space-4);
  align-items: center;
  padding: var(--space-3) 0;
  border: 0;
  border-radius: var(--radius-sm);
  color: var(--ink);
  background: transparent;
  font: inherit;
  text-align: left;
  text-decoration: none;
  cursor: pointer;
}

.engineering-tools__app--text {
  grid-template-columns: minmax(0, 1fr);
}

.engineering-tools__app::before {
  content: "";
  position: absolute;
  inset: 0 calc(-1 * var(--space-3));
  z-index: -1;
  border-radius: var(--radius);
  background: var(--surface-2);
  pointer-events: none;
  transition: background-color var(--motion-fast);
}

.engineering-tools__app:is(:hover, :focus-visible)::before {
  background: color-mix(in srgb, var(--surface-2) 97%, var(--ink));
}

.engineering-tools__app:focus-visible {
  outline: var(--focus-ring-width) solid var(--focus-ring);
  outline-offset: 2px;
}

.engineering-tools__app-icon {
  display: block;
  flex: none;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
}

body.engineering-tool-open {
  overflow: hidden;
}

/* Compact forms and opaque surfaces match the SDO document/contract cards. */
.engineering-tools__modal {
  --control-height: 36px;
  --type-section: 18px;
  --type-card: 15px;
  --type-caption: 11px;
  --panel: var(--card-surface);
  --panel-strong: var(--card-surface);
  width: min(860px, calc(100vw - 32px));
  border-color: var(--line);
  border-radius: var(--radius);
  background: var(--card-surface);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.engineering-tools__modal::backdrop {
  background: rgba(20, 31, 56, 0.4);
  backdrop-filter: none;
}

body.theme-dark .engineering-tools__modal::backdrop {
  background: rgba(0, 0, 0, 0.65);
}

.engineering-tools__modal .c-modal__header,
.engineering-tools__modal .c-modal__body {
  padding: var(--space-4);
}

.engineering-tools__modal .c-modal__content {
  grid-template-rows: auto minmax(0, 1fr);
}

.engineering-tools__modal-heading {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.engineering-tools__modal-heading .engineering-tools__app-icon {
  width: 40px;
  height: 40px;
}

#engineeringToolsView h2.c-modal__title {
  font-size: var(--type-section);
  font-weight: var(--weight-body);
  line-height: normal;
}

.engineering-tools__row-title,
.engineering-tools__row-description {
  display: block;
}

:is(#engineeringToolsView, #portalHelpView) strong.engineering-tools__row-title {
  margin-bottom: var(--space-1);
  font-size: var(--type-card);
  font-weight: var(--weight-medium);
  line-height: 1.4;
}

.engineering-tools__row-description,
.engineering-tools__source {
  color: var(--muted);
  font-size: var(--type-body);
  line-height: 1.5;
}

.engineering-tools__card {
  padding: var(--space-4);
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  display: grid;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

#engineeringToolsView h2.c-card__title {
  font-size: var(--type-card);
  font-weight: var(--weight-body);
  line-height: 1.4;
}

.engineering-tools__fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 14px;
}

.engineering-tools__result {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: start;
  gap: var(--space-4);
}

.engineering-tools__metric-label {
  display: block;
  margin-bottom: var(--space-2);
  color: var(--muted);
  font-size: var(--type-caption);
  font-weight: var(--weight-body);
  line-height: 1.5;
}

#engineeringToolsView strong.engineering-tools__metric-value {
  display: block;
  overflow-wrap: anywhere;
  font-size: 14px;
  font-weight: var(--weight-body);
  line-height: 1.5;
}

.engineering-tools__metric-value small {
  font-size: inherit;
  font-weight: var(--weight-body);
}

.engineering-tools__notice {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--muted);
  font-size: var(--type-body);
  line-height: 1.6;
}

.engineering-tools__table {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

#engineeringToolsView .c-table {
  width: 100%;
  min-width: 0;
  table-layout: fixed;
}

.engineering-tools__table th,
.engineering-tools__table td {
  overflow-wrap: anywhere;
}

#engineeringToolsView .c-status,
#engineeringToolsView .c-field__error {
  font-size: var(--type-body);
  font-weight: var(--weight-body);
  line-height: 1.5;
  text-transform: none;
  letter-spacing: normal;
}

#engineeringToolsView .c-table th {
  font-size: var(--type-caption);
  font-weight: var(--weight-medium);
  line-height: 1.4;
  text-transform: none;
  letter-spacing: normal;
}

#engineeringToolsView .c-field {
  gap: 6px;
}

#engineeringToolsView .c-field__label {
  color: var(--muted);
  font-size: var(--type-caption);
  font-weight: var(--weight-body);
  line-height: 1.4;
}

#engineeringToolsView .c-field__control,
#engineeringToolsView .c-select__control {
  height: var(--control-height);
  min-height: var(--control-height);
  padding: 8px 10px;
  background: var(--card-surface);
  font-size: 14px;
  font-weight: var(--weight-body);
  line-height: normal;
}

#engineeringToolsView .c-select__control {
  padding-right: 36px;
  background-image: linear-gradient(45deg, transparent 45%, var(--muted) 45%, var(--muted) 65%, transparent 65%), linear-gradient(135deg, transparent 45%, var(--muted) 45%, var(--muted) 65%, transparent 65%);
  background-position: calc(100% - 18px) 50%, calc(100% - 14px) 50%;
  background-size: 4px 6px;
  background-repeat: no-repeat;
}

/* Same small select chevron as the SDO invoice card. */
.engineering-tools__modal .c-select::after {
  content: none;
}

.engineering-tools__table .c-field__label {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
}

.engineering-tools__deviation {
  display: block;
  min-height: 1.5em;
  margin-top: var(--space-1);
  color: var(--muted);
  font-size: var(--type-body);
}

.engineering-tools__deviation--outside {
  color: var(--warning);
}

.engineering-tools__source {
  margin: var(--space-4) 0 0;
}

.engineering-tools__source a {
  color: var(--brand-primary);
  font-weight: var(--weight-medium);
}

.engineering-tools__error {
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--danger);
  border-radius: var(--radius-sm);
}

@media (max-width: 600px) {
  .engineering-tools__catalog {
    padding: var(--space-4) 0;
  }

  .engineering-tools__apps {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-2);
    margin-top: var(--space-4);
  }

  .engineering-tools__app {
    padding: var(--space-3) 0;
    gap: var(--space-3);
  }

  .engineering-tools__app::before {
    inset-inline: calc(-1 * var(--space-2));
  }

  .engineering-tools__modal {
    width: calc(100vw - 20px);
  }

  .engineering-tools__fields,
  .engineering-tools__result {
    grid-template-columns: minmax(0, 1fr);
  }

  .engineering-tools__table th,
  .engineering-tools__table td {
    padding: var(--space-2) var(--space-1);
  }

  .engineering-tools__table .c-field__control {
    padding: var(--space-2) var(--space-1);
  }
}