.native-calculator {
  background: #ffffff;
  border: 1px solid #dfe7ee;
  border-radius: 8px;
  padding: 22px;
}

.native-calculator > .result-banner {
  margin-bottom: 18px;
}

.calculator-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.95fr) minmax(0, 1.35fr);
  gap: 22px;
  align-items: start;
}

.calculator-stack {
  display: grid;
  gap: 18px;
}

.calculator-card {
  border: 1px solid #e3e8ef;
  border-radius: 8px;
  background: #ffffff;
  padding: 18px;
}

.calculator-card h2,
.calculator-card h3 {
  margin: 0 0 14px;
  line-height: 1.2;
}

.calculator-card h2 {
  font-size: 22px;
}

.calculator-card h3 {
  font-size: 18px;
}

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

.field-grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.field {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.field label,
.radio-label {
  color: #405364;
  font-size: 14px;
  font-weight: 700;
}

.field input,
.field select {
  width: 100%;
  box-sizing: border-box;
  border: 1px solid #cfd8e3;
  border-radius: 8px;
  padding: 10px 11px;
  color: #17212b;
  background: #ffffff;
  font: inherit;
}

.range-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 86px;
  gap: 10px;
  align-items: center;
}

.range-row input[type="range"] {
  padding: 0;
}

.radio-group {
  display: grid;
  grid-template-columns: repeat(2, minmax(130px, 1fr));
  gap: 10px;
}

.radio-group label {
  display: flex;
  align-items: center;
  gap: 7px;
  border: 1px solid #cfd8e3;
  border-radius: 8px;
  padding: 9px 11px;
  cursor: pointer;
  box-sizing: border-box;
  min-width: 0;
  overflow: hidden;
}

.radio-group input {
  flex: 0 0 auto;
  width: auto;
  height: auto;
  margin: 0;
  padding: 0;
}

.radio-group label {
  overflow-wrap: normal;
  word-break: normal;
}

.advanced-settings .field-grid {
  grid-template-columns: 1fr;
}

.advanced-settings .radio-group {
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.native-note {
  margin: 12px 0 0;
  color: #536273;
  font-size: 14px;
}

.result-banner {
  border: 1px solid #cfe4f7;
  border-radius: 8px;
  background: #f3f9ff;
  padding: 16px 18px;
}

.result-banner span {
  display: block;
  color: #405364;
  font-size: 14px;
  font-weight: 700;
}

.result-banner strong {
  display: block;
  margin-top: 4px;
  color: #17212b;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.1;
}

.metric-grid.native {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 12px;
  margin: 0;
}

.metric-card.native {
  border: 1px solid #d8e0e6;
  border-radius: 8px;
  background: #ffffff;
  padding: 14px;
  min-width: 0;
}

.metric-card.native span {
  display: block;
  color: #536273;
  font-size: 13px;
  line-height: 1.25;
  min-height: 32px;
}

.metric-card.native strong {
  display: block;
  margin-top: 6px;
  color: #17212b;
  font-size: clamp(17px, 1.45vw, 21px);
  line-height: 1.12;
  overflow-wrap: normal;
  word-break: normal;
  white-space: nowrap;
}

.chart-box {
  min-height: 320px;
}

.chart-box canvas {
  width: 100% !important;
  max-height: 420px;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid #e3e8ef;
  border-radius: 8px;
  background: #ffffff;
}

.table-wrap table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
  font-size: 14px;
}

.table-wrap th,
.table-wrap td {
  border-bottom: 1px solid #edf1f5;
  padding: 9px 10px;
  text-align: right;
  white-space: nowrap;
}

.table-wrap th:first-child,
.table-wrap td:first-child,
.table-wrap th:nth-child(2),
.table-wrap td:nth-child(2) {
  text-align: left;
}

.table-wrap th {
  background: #f6f8fa;
  color: #405364;
  font-weight: 800;
}

.download-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.download-button {
  border: 0;
  border-radius: 8px;
  background: #1769aa;
  color: #ffffff;
  cursor: pointer;
  font: inherit;
  font-weight: 800;
  padding: 11px 14px;
}

.download-button.secondary {
  background: #eef5fb;
  color: #1769aa;
}

.details-list {
  display: grid;
  gap: 8px;
}

.details-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid #edf1f5;
  padding: 7px 0;
}

.details-row strong {
  white-space: nowrap;
}

.alert {
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 14px;
}

.alert.info {
  background: #f3f9ff;
  border: 1px solid #cfe4f7;
  color: #314d67;
}

.alert.warn {
  background: #fff7ed;
  border: 1px solid #fed7aa;
  color: #7c2d12;
}

.alert.good {
  background: #effaf4;
  border: 1px solid #bbedd0;
  color: #14532d;
}

@media (max-width: 900px) {
  .calculator-grid,
  .field-grid.three {
    grid-template-columns: 1fr;
  }

  .metric-grid.native {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 700px) {
  .radio-group {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .native-calculator {
    padding: 14px;
    border-left: 0;
    border-right: 0;
    border-radius: 0;
  }

  .calculator-section .wrap {
    padding: 0;
  }

  .calculator-card {
    padding: 15px;
  }

  .field-grid,
  .metric-grid.native {
    grid-template-columns: 1fr;
  }

  .range-row {
    grid-template-columns: 1fr;
  }

  .download-button {
    width: 100%;
  }
}