.calculation {
  width: 100%;
}

.calculation-content {
  box-sizing: border-box;
  width: 100%;
  max-width: 1600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 20px;
  background-color: #fff;
  padding: clamp(16px, 3vw, 36px);
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.calculation-title {
  display: block;
  width: 100%;
  text-align: center;
  margin: 0;
  font-size: clamp(20px, 2.4vw, 28px);
  color: #2c3e50;
  border-bottom: 2px solid #3498db;
  padding-bottom: 15px;
  font-family: "Rubik", sans-serif;
  letter-spacing: 0.04em;
}

.calculation-instructions {
  width: 100%;
  max-width: 1100px;
  margin: 0;
  color: #465b69;
  font-family: "Rubik", sans-serif;
  line-height: 1.6;
  text-align: justify;
}
.calculation-instructions a {
  display: inline-block;
  text-decoration: none;
  color: #3498db;
  transition: color 0.3s ease;
}

.calculation-instructions a::after {
  content: "";
  display: block;
  position: relative;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background-color: #3498db;
  transform: scaleX(0);
  transition: transform 0.3s ease;
}
.calculation-instructions > a:hover::after {
  transform: scaleX(1);
}

.calculation-cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
  width: 100%;
  margin: 0 auto;
}

.calculation-card {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

#calculation-form {
  min-width: 0;
}

.building-information,
.calculation-area {
  box-sizing: border-box;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
  background-color: #f9f9f9;
  padding: clamp(14px, 2vw, 24px);
  margin-bottom: clamp(20px, 3vw, 36px);
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.building-information h2 {
  font-size: 20px;
  color: #2c3e50;
  padding-bottom: 10px;
  font-family: "Rubik", sans-serif;
  letter-spacing: 1px;
}

.building-information-inputs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.building-information-input {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.building-information-input label {
  font-weight: bold;
  font-family: "Raleway", sans-serif;
}

.building-information-input input {
  box-sizing: border-box;
  width: 100%;
  min-height: 42px;
  padding: 8px;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-family: "Rubik", sans-serif;
}

.building-information-input input:focus,
.category-item-name-input:focus,
.category-item-type-select:focus,
.category-item-amount input:focus,
.category-item-calculation input:focus {
  outline: 3px solid rgba(52, 152, 219, 0.2);
  border-color: #3498db;
}

.error-message {
  color: red;
  font-size: 12px;
  display: none;
  font-family: "Rubik", sans-serif;
}

.calculation-area-header {
  display: grid;
  grid-template-columns:
    minmax(220px, 5fr)
    minmax(105px, 1.1fr)
    minmax(150px, 2fr)
    minmax(120px, 1.2fr)
    minmax(80px, 0.9fr);
  gap: 10px;
}

.calculation-area-header-title {
  text-align: center;
  font-family: "Rubik", sans-serif;
  letter-spacing: 1px;
  color: #2c3e50;
  font-size: 14px;
  font-weight: 700;
}

.calculation-area-header-title.name {
  grid-column: auto;
}

.calculation-area-header-title.amount {
  grid-column: auto;
}

.calculation-area-header-title.type {
  grid-column: auto;
}

.calculation-area-header-title.calculation {
  grid-column: auto;
}

.calculation-area-header-title.actions {
  grid-column: auto;
}

.calculation-area-content {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 8px;
}

.expense-slider-controls {
  display: none;
}

.category-item {
  display: grid;
  grid-template-columns:
    minmax(220px, 5fr)
    minmax(105px, 1.1fr)
    minmax(150px, 2fr)
    minmax(120px, 1.2fr)
    minmax(80px, 0.9fr);
  align-items: center;
  gap: 10px;
  width: 100%;
  min-width: 0;
  padding: 9px 0;
  border-bottom: 1px solid #e6eaed;
}

.category-item-name {
  min-width: 0;
  font-family: "Rubik", sans-serif;
  font-size: 14px;
  text-align: justify;
  overflow-wrap: anywhere;
}

.category-item-description {
  margin: 6px 0 0;
  color: #647482;
  font-size: 12px;
  font-weight: 400;
  line-height: 1.45;
  text-align: justify;
}

.category-item-name-input {
  box-sizing: border-box;
  width: 100%;
  min-height: 35px;
  padding: 5px 8px;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-family: "Rubik", sans-serif;
  font-size: 14px;
}

.category-item--parent {
  padding: 9px 0px;
  border-radius: 6px;
  border-bottom: 0;
}

.category-item--parent .category-item-type-label {
  text-align: center;
}

.category-item--child .category-item-name {
  padding-left: 20px;
}

.category-item-amount {
  min-width: 0;
}

.category-item-type {
  text-align: center;
  font-family: "Rubik", sans-serif;
  min-width: 0;
}

.category-item-calculation {
  min-width: 0;
}

.category-item-actions {
  min-width: 0;
}

.category-item-type-select,
.category-item-amount input,
.category-item-calculation input {
  box-sizing: border-box;
  height: 35px;
  width: 100%;
  min-width: 0;
  padding: 5px;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-family: "Rubik", sans-serif;
  font-size: 14px;
  text-align: center;
}

.category-item-amount input[readonly],
.category-item-calculation input[readonly] {
  background-color: #ecf0f1;
  color: #5d6d7e;
  cursor: default;
}

.category-item-actions {
  display: flex;
  flex-direction: row;
  justify-content: center;
  gap: 6px;
}

.category-item-delete-btn {
  min-height: 35px;
  padding: 6px 10px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-family: "Rubik", sans-serif;
  font-size: 14px;
}

.category-item-delete-btn {
  background-color: #e74c3c;
  color: #fff;
}

.category-item-delete-btn:disabled {
  background-color: #bdc3c7;
  color: #fff;
  cursor: not-allowed;
}

.category-item-delete-btn:not(:disabled):hover {
  background-color: #c0392b;
}

.calculation-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  width: 100%;
  justify-content: center;
}

.calculation-action-btn {
  min-height: 42px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-family: "Rubik", sans-serif;
  font-size: 14px;
  padding: 10px 16px;
  transition:
    transform 0.15s ease,
    opacity 0.15s ease;
}

.calculation-action-btn:hover {
  transform: translateY(-1px);
  opacity: 0.92;
}

.calculation-action-btn--primary {
  background-color: #3498db;
  color: #fff;
}

.calculation-action-btn--secondary {
  background-color: #2ecc71;
  color: #fff;
}

.calculation-action-btn--ghost {
  background-color: #ecf0f1;
  color: #2c3e50;
}

.calculation-results {
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 100%;
  padding-top: 40px;
}

.calculation-result-card {
  background: #fff;
  border: 1px solid #dfe6e9;
  border-radius: 8px;
  padding: 16px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

.calculation-result-card--warning {
  border-color: #f39c12;
  background: #fffaf1;
}

.calculation-result-title {
  margin: 0 0 12px;
  font-family: "Rubik", sans-serif;
  font-size: 18px;
  color: #2c3e50;
}

.calculation-result-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px 24px;
  margin: 0;
  padding: 20px 22px;
  border: 1px solid #dfe6e9;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
  align-items: center;
}

.calculation-result-list--contributions {
  margin-top: 8px;
  border-color: #d6e8f4;
}

.calculation-result-list dt {
  font-family: "Rubik", sans-serif;
  margin: 0;
  font-weight: 700;
  color: #2c3e50;
  line-height: 1.45;
}

.calculation-result-list dd {
  font-family: "Rubik", sans-serif;
  margin: 0;
  text-align: right;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  color: #2479ad;
}

.calculation-rounding-note {
  padding: 14px 16px;
  border-left: 4px solid #3498db;
  border-radius: 4px;
  background-color: #f2f8fc;
  color: #465b69;
}

.calculation-rounding-note-title {
  margin: 0 0 6px;
  font-family: "Rubik", sans-serif;
  font-size: 16px;
  color: #2c3e50;
}

.calculation-rounding-note p {
  font-family: "Rubik", sans-serif;
  text-align: justify;
  margin: 0;
  line-height: 1.5;
}

.calculation-result-warnings {
  margin: 0;
  padding-left: 18px;
}

.calculation-result-rows {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.calculation-result-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px 12px;
  border-radius: 6px;
  background: #f8f9fa;
}

.calculation-result-row-name {
  font-weight: 700;
  color: #2c3e50;
}

.calculation-result-row-meta {
  color: #6c757d;
  font-size: 14px;
}

@media (max-width: 1100px) {
  .calculation-area-header {
    display: none;
  }

  .category-item {
    grid-template-columns: minmax(0, 1.2fr) minmax(110px, 0.8fr) minmax(
        140px,
        1fr
      );
    gap: 12px 16px;
    padding: 14px;
    background: #fff;
    border: 1px solid #e1e7eb;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  }

  .category-item--parent {
    background-color: rgba(52, 152, 219, 0.07);
    border-color: rgba(52, 152, 219, 0.18);
  }

  .category-item-name {
    grid-column: 1 / -1;
  }

  .category-item-amount,
  .category-item-type,
  .category-item-calculation,
  .category-item-actions {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    align-content: start;
    gap: 6px;
  }

  .category-item-amount::before {
    content: "Сума витрат, грн/міс.";
  }

  .category-item-type::before {
    content: "Тип приміщень";
  }

  .category-item-calculation::before {
    content: "На 1 кв.м., грн";
  }

  .category-item-actions::before {
    content: "Дії";
  }

  .category-item-amount::before,
  .category-item-type::before,
  .category-item-calculation::before,
  .category-item-actions::before {
    color: #647482;
    font-family: "Rubik", sans-serif;
    font-size: 12px;
    font-weight: 600;
    line-height: 1.3;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 0.02em;
  }

  .category-item-actions {
    justify-content: flex-start;
  }

  .category-item--parent .category-item-type-label {
    text-align: center;
  }
}

@media (max-width: 700px) {
  .calculation-content {
    gap: 16px;
    padding: 18px 14px;
    border-radius: 6px;
  }

  .calculation-title {
    padding-bottom: 12px;
    letter-spacing: 0.02em;
  }

  .calculation-instructions {
    font-size: 14px;
    text-align: justify;
    text-justify: inter-word;
  }

  .building-information,
  .calculation-area {
    gap: 14px;
    padding: 14px;
    margin-bottom: 18px;
  }

  .building-information h2 {
    margin: 0;
    font-size: 18px;
  }

  .building-information-inputs {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
  }

  .category-item {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    padding: 12px;
  }

  .category-item:not(.category-item--active) {
    display: none;
  }

  .expense-slider-controls {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: center;
    gap: 10px;
    width: 100%;
    padding-top: 8px;
  }

  .expense-slider-button {
    box-sizing: border-box;
    width: 100%;
    min-width: 0;
    min-height: 44px;
    padding: 8px clamp(5px, 2vw, 12px);
    border: 1px solid #2479ad;
    border-radius: 8px;
    background: #3498db;
    color: #fff;
    font-family: "Rubik", sans-serif;
    font-size: clamp(12px, 3.4vw, 14px);
    font-weight: 600;
    line-height: 1.2;
    white-space: nowrap;
    cursor: pointer;
    transition:
      background-color 0.15s ease,
      border-color 0.15s ease,
      box-shadow 0.15s ease;
  }

  .expense-slider-button:disabled {
    border-color: #d7dfe4;
    background: #edf1f3;
    color: #7b8992;
    cursor: not-allowed;
  }

  .expense-slider-button:not(:disabled):hover {
    border-color: #1f6f9f;
    background: #287fb6;
  }

  .expense-slider-button:focus-visible {
    outline: 3px solid rgba(52, 152, 219, 0.3);
    outline-offset: 2px;
    box-shadow: 0 0 0 1px #fff;
  }

  .expense-slider-indicator {
    min-width: 88px;
    padding: 7px 9px;
    border: 1px solid #dfe6eb;
    border-radius: 999px;
    background: #f5f8fa;
    color: #465b69;
    font-family: "Rubik", sans-serif;
    font-size: clamp(11px, 3vw, 13px);
    font-weight: 700;
    text-align: center;
    white-space: nowrap;
  }

  .category-item-name,
  .category-item-type,
  .category-item-actions {
    grid-column: 1 / -1;
  }

  .category-item-amount,
  .category-item-calculation {
    grid-column: span 2;
  }

  .category-item--child .category-item-name {
    padding-left: 4px;
  }

  .calculation-actions {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
  }

  .calculation-action-btn {
    width: 100%;
  }

  .calculation-result-list {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
    width: 100%;
    max-width: 560px;
    padding: 16px;
    text-align: center;
  }

  .calculation-result-list dd {
    margin: 0 0 6px;
    text-align: center;
    font-weight: 700;
  }

  .calculation-results {
    align-items: center;
  }

  .calculation-rounding-note {
    width: 100%;
    max-width: 560px;
    box-sizing: border-box;
    text-align: center;
  }

  .calculation-rounding-note {
    padding: 12px;
  }
}

@media (max-width: 380px) {
  .calculation-content {
    padding: 14px 10px;
  }

  .building-information,
  .calculation-area {
    padding: 11px;
  }

  .category-item {
    padding: 10px;
    row-gap: 20px;
  }

  .category-item-type-select,
  .category-item-amount input,
  .category-item-calculation input {
    font-size: 13px;
  }

  .expense-slider-controls {
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    gap: 6px;
  }

  .expense-slider-button {
    padding-inline: 2px;
    font-size: 11px;
  }

  .expense-slider-indicator {
    min-width: 82px;
    padding-inline: 6px;
  }

  .expense-slider-button {
    transition: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .calculation-action-btn {
    transition: none;
  }

  .calculation-action-btn:hover {
    transform: none;
  }
}