/* Калькулятор — в стилистике секции регистрации (USWDS / Treasury, синие акценты) */

.inv-calc {
  --inv-blue: #005ea2;
  --inv-blue-dark: #1a4480;
  --inv-border: #dfe1e2;
  --inv-panel-bg: #f7f9fa;
  --inv-text: #1b1b1b;
  --inv-muted: #565c65;
  --inv-track: #e6e6e6;
  --inv-note-bg: #e1f3f8;
  --inv-note-border: #97d4ff;
  margin: 1.5rem auto 2rem;
  padding: 0;
  max-width: 75rem;
  font-family: 'Source Sans Pro', 'Helvetica Neue', Helvetica, Roboto, Arial, sans-serif;
  color: var(--inv-text);
}

.inv-calc__inner {
  max-width: 100%;
  margin: 0 auto;
  padding: 1.5rem 1rem 1.75rem;
  background: var(--inv-panel-bg);
  border: 1px solid var(--inv-border);
  border-radius: 4px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
  box-sizing: border-box;
}

@media (min-width: 768px) {
  .inv-calc__inner {
    padding: 2rem 1.5rem 2.25rem;
  }
}

.inv-calc__title {
  margin: 0 0 1rem;
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--inv-blue-dark);
  border-bottom: 3px solid var(--inv-blue);
  padding-bottom: 0.5rem;
}

@media (min-width: 768px) {
  .inv-calc__title {
    margin-bottom: 1.25rem;
  }
}

.inv-calc__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  align-items: stretch;
}

@media (min-width: 900px) {
  .inv-calc__grid {
    grid-template-columns: 1fr minmax(280px, 340px);
    gap: 2rem 2.5rem;
    align-items: start;
  }
}

.inv-calc__controls {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  min-width: 0;
}

.inv-calc__row {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.inv-calc__row-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.inv-calc__row-title {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  min-width: 0;
}

.inv-calc__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  flex-shrink: 0;
  background: rgba(0, 94, 162, 0.1);
  color: var(--inv-blue);
}

.inv-calc__icon-svg {
  width: 1.05rem;
  height: 1.05rem;
  flex-shrink: 0;
}

.inv-calc__label {
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--inv-text);
}

.inv-calc__value {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--inv-blue);
  white-space: nowrap;
}

.inv-calc__slider {
  margin: 0.1rem 0 0;
  padding: 0 0.35rem;
}

.inv-calc__scale {
  display: flex;
  justify-content: space-between;
  font-size: 0.875rem;
  line-height: 1.4;
  color: var(--inv-muted);
  margin-top: 0.1rem;
  padding: 0 0.15rem;
}

.inv-calc__note {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin: 0.15rem 0 0;
  padding: 0.65rem 0.85rem;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--inv-muted);
  font-style: italic;
  background: var(--inv-note-bg);
  border: 1px solid var(--inv-note-border);
  border-radius: 3px;
}

.inv-calc__note-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.25rem;
  height: 1.25rem;
  margin-top: 0.1rem;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--inv-blue);
  color: #fff;
}

.inv-calc__note-icon-svg {
  width: 0.7rem;
  height: 0.7rem;
}

/* noUiSlider */
.inv-calc .noUi-target {
  height: 10px;
  border: none;
  border-radius: 3px;
  box-shadow: none;
  background: var(--inv-track);
}

.inv-calc .noUi-connects {
  border-radius: 3px;
}

.inv-calc .noUi-connect {
  background: var(--inv-blue);
}

.inv-calc .noUi-horizontal .noUi-handle {
  width: 22px;
  height: 22px;
  right: -11px;
  top: -7px;
  border-radius: 50%;
  border: 3px solid var(--inv-blue);
  background: #fff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
  cursor: grab;
}

.inv-calc .noUi-horizontal .noUi-handle:active {
  cursor: grabbing;
}

.inv-calc .noUi-handle::before,
.inv-calc .noUi-handle::after {
  display: none;
}

.inv-calc .noUi-touch-area {
  width: 100%;
  height: 100%;
}

/* Итоговая панель */
.inv-calc__result {
  background: linear-gradient(165deg, var(--inv-blue) 0%, var(--inv-blue-dark) 100%);
  color: #fff;
  border-radius: 4px;
  padding: 1.25rem 1.15rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  box-shadow: 0 4px 14px rgba(0, 94, 162, 0.28);
}

@media (min-width: 900px) {
  .inv-calc__result {
    padding: 1.35rem 1.25rem 1.5rem;
  }
}

.inv-calc__result-label {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 400;
  line-height: 1.4;
  color: rgba(255, 255, 255, 0.82);
}

.inv-calc__result-main {
  margin: 0;
  font-size: clamp(1.5rem, 4.2vw, 1.875rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.inv-calc__result-sub {
  margin: 0;
  font-size: 1rem;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.9);
}

.inv-calc__divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.28);
  margin: 0.25rem 0;
}

.inv-calc__line {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.75rem;
  font-size: 0.95rem;
  line-height: 1.4;
  color: rgba(255, 255, 255, 0.92);
}

.inv-calc__line span:first-child {
  font-style: italic;
}

.inv-calc__line span:last-child {
  font-weight: 600;
  white-space: nowrap;
}

.inv-calc__line--total {
  margin-top: 0.1rem;
  font-size: 1rem;
}

.inv-calc__line--total span:first-child {
  font-style: normal;
  font-weight: 700;
}

.inv-calc__line--total span:last-child {
  font-size: 1.125rem;
  font-weight: 700;
}

.inv-calc__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  margin-top: 0.65rem;
  padding: 0.75rem 1.25rem;
  background: #fff;
  color: var(--inv-blue);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.3;
  text-decoration: none;
  border-radius: 3px;
  border: none;
  cursor: pointer;
  transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.15s ease;
  text-align: center;
}

.inv-calc__cta:hover {
  color: var(--inv-blue-dark);
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
  transform: translateY(-1px);
}

.inv-calc__cta:active {
  transform: translateY(0);
}

.inv-calc__cta:focus {
  outline: 0.25rem solid #2491ff;
  outline-offset: 0.25rem;
}

.inv-calc__cta-icon-svg {
  width: 1.125rem;
  height: 1.125rem;
  flex-shrink: 0;
  color: var(--inv-blue);
}

.inv-calc__cta:hover .inv-calc__cta-icon-svg {
  color: var(--inv-blue-dark);
}