.calc-metall__calculations {
  display: grid;
  gap: 1.5rem;
  margin-bottom: 20px;
}

.calc-metall__add {
  border: 1px solid rgb(var(--main_color));
  background: rgb(var(--main_color));
  color: rgb(var(--main_white));
  padding: 10px 15px;
  border-radius: 5px;
  cursor: pointer;
  transition: all 0.3s;
}

.calc-metall__add:hover {
  background: rgb(var(--main_color_hover));
  border-color: rgb(var(--main_color_hover));
}

.calc-metall__calculation {
  padding: 30px;
  border: 1px solid rgba(var(--main_dark_light), 0.3);
  border-radius: var(--border_radius);
  background: rgb(var(--main_white));
}

.calc-metall__heading,
.calc-metall__category-level {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: .75rem;
  margin-bottom: 1rem;
}

.calc-metall__heading {
  justify-content: space-between;
}

.calc-metall__heading h2 {
  margin: 0;
  font-size: 1.5em;
}

.calc-metall__heading button {
  border: 1px solid rgba(var(--main_dark_light), 0.3);
  background: rgb(var(--main_gray));
  color: rgb(var(--main_dark));
  padding: 5px 10px;
  font-size: 0.9em;
  border-radius: 5px;
  cursor: pointer;
  transition: all 0.3s;
}

.calc-metall__heading button:hover {
  background: rgb(var(--main_gray_dark));
  color: rgb(var(--main_color));
}

.calc-metall__heading button[disabled] {
  pointer-events: none;
  opacity: 0.5;
}

.calc-metall__category-level:not(:first-child) {
  border: 2px solid rgba(var(--main_color_light), 0.3);
  border-radius: var(--border_radius);
  padding: 5px;
}

.calc-metall__category,
.calc-metall__subcategory {
  display: inline-flex;
  align-items: center;
  gap: 15px;
  padding: 10px 15px;
  background: rgb(var(--main_gray));
  border: 1px solid rgb(var(--main_gray_dark));
  border-radius: var(--border_radius);
  font-family: var(--font_bold);
  cursor: pointer;
  transition: all 0.3s;

  &:hover {
    background: rgb(var(--main_color));
    color: rgb(var(--main_white));

    svg {
      fill: rgb(var(--main_white))
    }
  }
}

.calc-metall__category {
  flex: 1;
}

@media (width <= 1170px) {
  .calc-metall__category {
    flex: auto;
  }
}

.calc-metall__subcategory {
  padding: 5px 10px;
}

.calc-metall__categories {
  svg {
    fill: rgb(var(--main_color));
  }

  .is-active {
    outline: 2px solid currentColor;
    outline-offset: 2px;
    background: rgb(var(--main_color));
    color: rgb(var(--main_white));

    svg {
      fill: rgb(var(--main_white))
    }
  }
}

.calc-metall button:focus-visible,
.calc-metall select:focus-visible {
  outline: 3px solid #1769aa;
  outline-offset: 3px;
}

.calc-metall__icon {
  display: inline-flex;
}

.calc-metall__icon svg {
  width: 100%;
  height: 100%;
  max-width: 20px;
  max-height: 25px;
  transition: all 0.3s;
}

.calc-metall__content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 30px;
}

@media (width <= 1170px) {
  .calc-metall__content {
    grid-template-columns: 1fr;
  }
}

.calc-metall__content label {
  display: block;
  margin-bottom: .5rem;
}

.calc-metall__profiles-list {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.calc-metall__profiles-title {
  font-size: 0.9em;
  margin-bottom: 5px;
}

.calc-metall__profiles-list {
  display: flex;
  align-items: stretch;
  flex-wrap: wrap;
  gap: 5px;
}

.calc-metall__profile {
  display: inline-flex;
  align-items: center;
  gap: 15px;
  padding: 5px 10px;
  background: rgb(var(--main_gray));
  border: 1px solid rgb(var(--main_gray_dark));
  border-radius: var(--border_radius);
  font-family: var(--font_bold);
  cursor: pointer;
  transition: all 0.3s;

  &:hover {
    background: rgb(var(--main_color));
    color: rgb(var(--main_white));
  }

  &.is-active {
    background: rgb(var(--main_color));
    color: rgb(var(--main_white));
  }
}

.calc-metall__value-output {
  display: grid;
  gap: 30px;
}

.calc-metall__value {
  background: rgb(var(--main_white));
  border: 1px solid rgb(var(--main_gray_dark));
  border-radius: var(--border_radius);
  padding: 20px;
}

/* Result layout follows the profile diagram and five metric rows. */
.calc-metall__diagram {
  display: flex;
  justify-content: center;
}

.calc-metall__diagram .calc-metall__icon {
  width: 100%;
  justify-content: center;
}

.calc-metall__diagram svg {
  width: 100%;
  max-width: 150px;
  height: auto;
  max-height: 210px;
}

.calc-metall__profile-name {
  margin: 0 0 30px;
  color: rgb(var(--main_color));
  text-align: center;
  font-size: 2rem;
  font-family: var(--font_bold);
}

.calc-metall__result dl {
  display: grid;
  grid-template-columns: minmax(0, 1fr) max-content;
  align-items: center;
  gap: 5px;
  margin: 0;
  font-size: 1rem;
}
.calc-metall__result dt {
  text-align: right;
  font-family: var(--font_regular);
}

.calc-metall__result dd {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
}

.calc-metall__metric-value {
  display: inline-block;
  min-width: 100px;
  padding: 6px;
  border: 2px solid rgb(var(--main_gray_dark));
  border-radius: var(--border_radius);
  text-align: right;
  font-size: 0.9em;
  font-variant-numeric: tabular-nums;
}

.calc-metall__metric-unit {
  min-width: 2.5rem;
}

.calc-metall__metric-primary {
  font-family: var(--font_bold);
}

.calc-metall__metric-primary .calc-metall__metric-value {
  font-size: 1.2rem;
}

@media (max-width: 700px) {
  .calc-metall__result {
    grid-template-columns: minmax(0, 1fr);
  }
  .calc-metall__result dl {
    font-size: 1rem;
    gap: 1rem .5rem;
  }
  .calc-metall__result dd {
    gap: .5rem;
  }
  .calc-metall__metric-value {
    min-width: 5rem;
    font-size: 1.1rem;
  }
  .calc-metall__metric-primary .calc-metall__metric-value {
    font-size: 1.3rem;
  }
}
.calc-metall__error {
  color: rgb(var(--main_red));
  background: rgba(var(--main_red), 0.1);
  border: 1px solid rgba(var(--main_red), 0.3);
  border-radius: var(--border_radius);
  padding: 10px;
  font-size: 0.9em;
  line-height: 1.2em;
}

.calc-metall__value-layout {
  display: grid;
  grid-template-columns: 1fr 2fr;
  align-items: center;
  gap: 30px;
}

.calc-metall__geometry {
  text-align: center;
}

.calc-metall__geometry-title {
  margin-bottom: 15px;
  font-size: 0.9em;
  line-height: 1.4em;
}

.calc-metall__diagram {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 200px;
}

.calc-metall__interactive-svg {
  display: block;
  width: auto;
  height: auto;
  max-width: 160px;
  max-height: 260px;
  overflow: visible;
}

.calc-metall__interactive-svg [data-action="toggle-side"] {
  transition: fill 0.15s ease;
}

@media (width <= 640px) {
  .calc-metall__value-layout {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

/* Размеры уголка: каждая колонка содержит независимый список кнопок. */
.calc-metall__dimensions-table {
  width: 100%;
  table-layout: fixed;
  border-collapse: separate;
  border-spacing: 0;
  border: 1px solid rgb(var(--main_white));
  border-radius: 5px;
  margin-bottom: 24px;
}

.calc-metall__dimensions-table caption {
  text-align: left;
  padding: 10px;
  background: rgba(var(--main_gray_dark), 0.5);
}

.calc-metall__dimensions-table th,
.calc-metall__dimensions-table td {
  padding: 5px;
  text-align: center;
  vertical-align: top;
  font-size: 0.9em;
  line-height: normal;
}

.calc-metall__dimensions-table th {
  border-bottom: 1px solid rgb(var(--main_gray_dark));
  overflow-wrap: anywhere;
}

.calc-metall__dimension {
  display: block;
  width: 100%;
  padding: 6px;
  border: 1px solid transparent;
  border-radius: 5px;
  background: transparent;
  color: inherit;
  font: inherit;
  cursor: pointer;
}

.calc-metall__dimension:hover {
  border-color: rgb(var(--main_color));
}

.calc-metall__dimension.is-active {
  border-color: rgb(var(--main_color));
  background: rgb(var(--main_color));
  color: rgb(var(--main_white));
}

.calc-metall__pipe-inputs {
  border: 1px solid rgb(var(--main_gray_dark));
  border-radius: 5px;
  padding: 15px 30px 20px;

  legend {
    background: rgb(var(--main_white));
    padding: 0 5px;
    display: inline-block;
    margin-bottom: 0;
  }

  label {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    column-gap: 10px;

    span {
      font-size: 0.9em;
      line-height: normal;

      &:first-child {
        width: 100%;
        font-family: var(--font_bold);
        font-size: 0.9em;
      }
    }
  }

  input {
    flex: 1;
    padding: 6px 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font: inherit;

    &[aria-invalid="true"] {
      border-color: rgb(var(--main_red));
      background: #fff0f0;
    }
  }

  p {
    font-size: 0.9em;
    line-height: 1.2em;
    width: 100%;
  }
}

.calc-metall__pipe-inputs input:focus-visible {
  outline: 3px solid #1769aa;
  outline-offset: 3px;
}

.calc-metall__geometry-hint {
  margin: 20px 0 0;
  text-align: left;
  opacity: 0.5;
}

.calc-metall__no-heating {
  text-align: center;
  margin: 0 0 20px;
  background: rgb(var(--main_yellow), 0.3);
  border: 1px solid rgb(var(--main_yellow), 0.7);
  border-radius: var(--border_radius);
  padding: 10px;
}

.calc-metall__welded-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 5px;
  margin-bottom: 10px;

  span:first-child {
    text-align: right;
    min-width: 70px;
  }

  input {
    max-width: 100px;
  }
}