.nga-calculator {
  --nga-navy: var(--navy-950, #0a1322);
  --nga-blue: var(--blue-600, #2e6bd6);
  --nga-border: var(--border, #e4e9f0);
  color: var(--text, #101828);
  font-family: "IBM Plex Sans", system-ui, sans-serif;
}

.nga-calculator__disclaimer {
  margin-bottom: 24px;
  padding: 16px 18px;
  border: 1px solid #fedf89;
  border-radius: 10px;
  background: var(--warning-bg, #fffaeb);
  color: #7a2e0e;
}

.nga-calculator__disclaimer strong {
  display: block;
  margin-bottom: 4px;
  color: var(--warning, #b54708);
  font-weight: 600;
}

.nga-calculator__disclaimer p {
  margin: 0;
}

.nga-calculator__mode {
  display: inline-flex;
  gap: 4px;
  margin-bottom: 20px;
  padding: 4px;
  border: 1px solid var(--nga-border);
  border-radius: 10px;
  background: var(--bg, #f7f9fc);
}

.nga-calculator__tab {
  min-height: 44px;
  padding: 9px 16px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--text-2, #475467);
  font: 600 15px/1.2 inherit;
  cursor: pointer;
}

.nga-calculator__tab.is-active {
  background: #fff;
  color: var(--nga-navy);
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.05);
}

.nga-calculator__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 24px;
}

.nga-calculator__inputs,
.nga-calculator__results {
  padding: clamp(20px, 4vw, 32px);
  border: 1px solid var(--nga-border);
  border-radius: 10px;
  background: var(--surface, #fff);
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.05);
}

.nga-field {
  margin-bottom: 20px;
}

.nga-field label {
  display: block;
  margin-bottom: 7px;
  color: var(--text, #101828);
  font-size: 14px;
  font-weight: 500;
}

.nga-input-unit,
.nga-input-select {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
}

.nga-input-unit input,
.nga-input-select input,
.nga-input-select select {
  min-height: 44px;
  border: 1px solid var(--border-strong, #cbd5e1);
  background: #fff;
  color: var(--text, #101828);
  font: 16px/1.3 "IBM Plex Sans", system-ui, sans-serif;
}

.nga-input-unit input,
.nga-input-select input {
  min-width: 0;
  padding: 9px 12px;
  border-radius: 6px 0 0 6px;
}

.nga-input-unit span,
.nga-input-select select {
  display: flex;
  min-width: 70px;
  align-items: center;
  justify-content: center;
  padding-inline: 12px;
  border: 1px solid var(--border-strong, #cbd5e1);
  border-left: 0;
  border-radius: 0 6px 6px 0;
  background: var(--bg, #f7f9fc);
  color: var(--text-2, #475467);
  font-size: 14px;
  font-weight: 500;
}

.nga-input-select select {
  cursor: pointer;
}

.nga-input-unit:focus-within input,
.nga-input-select:focus-within input,
.nga-input-select:focus-within select {
  border-color: var(--nga-blue);
  box-shadow: 0 0 0 3px var(--blue-100, #e3ecfb);
  outline: 0;
}

.nga-field small {
  display: block;
  margin-top: 6px;
  color: var(--text-3, #667085);
  font-size: 14px;
}

.nga-field__error {
  display: block;
  min-height: 20px;
  margin-top: 4px;
  color: var(--danger, #b42318);
  font-size: 14px;
}

.nga-calculator__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 8px;
}

.nga-calculator .btn {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 9px 16px;
  border: 1px solid var(--border-strong, #cbd5e1);
  border-radius: 6px;
  background: #fff;
  color: var(--nga-navy);
  font: 600 15px/1.2 "IBM Plex Sans", system-ui, sans-serif;
  cursor: pointer;
}

.nga-calculator .btn:hover {
  background: var(--blue-50, #f0f5fd);
}

.nga-calculator .btn:focus-visible,
.nga-calculator__tab:focus-visible {
  outline: 2px solid var(--nga-blue);
  outline-offset: 2px;
}

.nga-calculator__copied {
  color: var(--success, #067647);
  font-size: 14px;
}

.nga-calculator__results {
  background: var(--bg, #f7f9fc);
}

.nga-calculator__results h3 {
  margin: 0 0 20px;
  color: var(--nga-navy);
  font: 600 24px/1.25 "Space Grotesk", system-ui, sans-serif;
}

.nga-calculator__result-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.nga-calculator__result-grid > div {
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--nga-border);
  border-radius: 10px;
  background: #fff;
}

.nga-calculator__result-grid span {
  display: block;
  margin-bottom: 4px;
  color: var(--text-2, #475467);
  font-size: 13px;
}

.nga-calculator__result-grid strong,
.nga-calculator__table,
.nga-calculator__summary {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-variant-numeric: tabular-nums;
}

.nga-calculator__result-grid strong {
  display: block;
  overflow-wrap: anywhere;
  color: var(--nga-navy);
  font-size: 16px;
  font-weight: 500;
}

.nga-calculator__table {
  width: 100%;
  margin-top: 20px;
  border-collapse: collapse;
  font-size: 14px;
}

.nga-calculator__table th,
.nga-calculator__table td {
  padding: 10px;
  border-bottom: 1px solid var(--nga-border);
  text-align: left;
}

.nga-calculator__summary {
  margin: 20px 0 0;
  padding: 16px;
  border-left: 3px solid var(--nga-blue);
  background: #fff;
  line-height: 1.6;
}

.nga-calculator__invalid {
  color: var(--danger, #b42318);
}

@media (max-width: 760px) {
  .nga-calculator__layout {
    grid-template-columns: 1fr;
  }

  .nga-calculator__mode {
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: 100%;
  }
}

@media (max-width: 430px) {
  .nga-calculator__result-grid {
    grid-template-columns: 1fr;
  }

  .nga-calculator__actions .btn {
    flex: 1 1 45%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .nga-calculator *,
  .nga-calculator *::before,
  .nga-calculator *::after {
    transition: none !important;
  }
}

@media print {
  body > *:not(main),
  .nga-calculator__mode,
  .nga-calculator__actions {
    display: none !important;
  }

  .nga-calculator__layout {
    display: block;
  }

  .nga-calculator__inputs {
    display: none;
  }

  .nga-calculator__results,
  .nga-calculator__result-grid > div {
    box-shadow: none;
  }
}