.roi-calc {
  padding: var(--section-padding) 0 var(--space-3xl);
  background: var(--color-white);
}

.roi-calc__header {
  margin-bottom: var(--space-2xl);
}

.roi-calc__header .section-title.is-hero {
  color: var(--color-heading);
}

.roi-calc__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
  max-width: 1100px;
  margin: 0 auto;
}

.roi-calc__card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
}

.roi-calc__results-card {
  background: var(--color-surface);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
}

.roi-calc__card-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--fs-ml);
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: var(--space-lg);
}

.roi-calc__card-icon {
  color: var(--color-primary);
  display: flex;
  align-items: center;
}

.roi-calc__toggle {
  display: flex;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--color-white);
}

.roi-calc__toggle-btn {
  flex: 1;
  padding: 0.6rem 1rem;
  font-size: var(--fs-sm);
  font-weight: 600;
  background: transparent;
  border: none;
  color: var(--color-text);
  cursor: pointer;
  transition:
    background 0.2s ease,
    color 0.2s ease;
  line-height: 1.4;
  white-space: nowrap;
}

.roi-calc__toggle-btn.is-active {
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: calc(var(--radius-sm) - 1px);
}

.roi-calc__toggle-btn:not(.is-active):hover {
  background: var(--color-secondary-hover-bg);
  color: var(--color-primary);
}

.roi-calc__field-group {
  margin-bottom: var(--space-md);
}

.roi-calc__label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.roi-calc__hint {
  font-size: var(--fs-xs);
  color: var(--color-text-light);
  margin: 0.375rem 0 0;
  line-height: var(--lh-normal);
}

.roi-calc__currency-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.roi-calc__currency-symbol {
  position: absolute;
  left: 0.875rem;
  font-size: var(--fs-m);
  color: var(--color-text-light);
  pointer-events: none;
  user-select: none;
}

.roi-calc__input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: var(--fs-m);
  font-family: var(--font-body);
  color: var(--color-heading);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color 0.2s ease;
  -moz-appearance: textfield;
}

.roi-calc__input::-webkit-outer-spin-button,
.roi-calc__input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.roi-calc__input--currency {
  padding-left: 2rem;
}

.roi-calc__input:focus {
  border-color: var(--color-primary);
}

.roi-calc__input::placeholder {
  color: var(--color-text-light);
}

.roi-calc__search-wrap {
  position: relative;
  margin-bottom: 0.5rem;
}

.roi-calc__search-input-wrap {
  position: relative;
}

.roi-calc__search-icon {
  position: absolute;
  left: 0.875rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-light);
  pointer-events: none;
  display: flex;
  align-items: center;
}

.roi-calc__search {
  padding-left: 2.5rem;
  margin-bottom: 0;
}

.roi-calc__dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
  z-index: 100;
  max-height: 280px;
  overflow-y: auto;
}

.roi-calc__dropdown-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  cursor: pointer;
  border-bottom: 1px solid var(--color-border);
  transition: background 0.15s ease;
  gap: 1rem;
}

.roi-calc__dropdown-item:last-child {
  border-bottom: none;
}

.roi-calc__dropdown-item:hover {
  background: var(--color-secondary-hover-bg);
}

.roi-calc__dropdown-item-name {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--color-heading);
  line-height: 1.3;
  margin-bottom: 2px;
}

.roi-calc__dropdown-item-sub {
  font-size: var(--fs-xs);
  color: var(--color-text-light);
  margin: 0;
}

.roi-calc__dropdown-item-price {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--color-heading);
  white-space: nowrap;
  flex-shrink: 0;
}

.roi-calc__dropdown-empty {
  padding: 1rem;
  font-size: var(--fs-sm);
  color: var(--color-text-light);
  text-align: center;
}

.roi-calc__assumptions {
  margin-top: var(--space-md);
}

.roi-calc__assumptions-title {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--color-heading);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.75rem;
}

.roi-calc__assumption-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-bottom: 0.5rem;
}

.roi-calc__assumption-label {
  font-size: var(--fs-sm);
  color: var(--color-text);
}

.roi-calc__assumption-value {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--color-heading);
}

.roi-calc__assumption-value--accent {
  color: var(--color-primary);
}

.roi-calc__disclaimer {
  font-size: var(--fs-xs);
  color: var(--color-text-light);
  margin-top: 0.75rem;
  line-height: var(--lh-relaxed);
}

.roi-calc__results-title {
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: var(--space-md);
  text-transform: none;
  letter-spacing: 0;
  font-family: var(--font-body);
}

.roi-calc__results-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.roi-calc__result-label {
  font-size: var(--fs-sm);
  color: var(--color-text);
  margin-bottom: 0.375rem;
}

.roi-calc__result-value {
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
  margin-bottom: 0.375rem;
  transition: all 0.3s ease;
}

.roi-calc__result-value.is-populated {
  font-size: var(--fs-2xl);
}

.roi-calc__placeholder {
  display: inline-block;
  width: 24px;
  height: 3px;
  background: var(--color-primary);
  border-radius: 2px;
  vertical-align: middle;
}

.roi-calc__result-sub {
  font-size: var(--fs-xs);
  color: var(--color-text-light);
  margin: 0;
}

.roi-calc__results-divider {
  height: 1px;
  background: var(--color-border);
  margin: var(--space-md) 0;
}

.roi-calc__roi-row {
  margin-bottom: var(--space-md);
}

.roi-calc__roi-label {
  font-size: var(--fs-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-light);
  margin-bottom: 0.375rem;
}

.roi-calc__roi-value {
  font-size: var(--fs-2xl);
  font-weight: 700;
  color: var(--color-primary);
}

.roi-calc__roi-value.is-populated {
  font-size: 3rem;
}

.roi-calc__results-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.roi-calc__annual-savings {
  font-size: var(--fs-xs);
  color: var(--color-text-light);
  margin: 0;
}

.roi-calc__ctas {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.roi-calc__cta-primary,
.roi-calc__cta-secondary {
  padding: 0.625rem 1.25rem;
  font-size: var(--fs-sm);
}

.roi-calc__methodology {
  margin-top: var(--space-md);
}

.roi-calc__methodology-title {
  font-size: var(--fs-ml);
  font-weight: 700;
  color: var(--color-heading);
  text-transform: none;
  letter-spacing: 0;
  font-family: var(--font-body);
  margin-bottom: var(--space-md);
}

.roi-calc__methodology-item {
  margin-bottom: var(--space-md);
}

.roi-calc__methodology-item:last-child {
  margin-bottom: 0;
}

.roi-calc__methodology-item h4 {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--color-heading);
  text-transform: none;
  letter-spacing: 0;
  margin-bottom: 0.375rem;
}

.roi-calc__methodology-item p {
  font-size: var(--fs-sm);
  color: var(--color-text);
  line-height: var(--lh-relaxed);
  margin: 0;
}

@media (max-width: 900px) {
  .roi-calc__layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .roi-calc__results-grid {
    grid-template-columns: 1fr;
  }

  .roi-calc__results-footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .roi-calc__ctas {
    width: 100%;
    flex-direction: column;
  }

  .roi-calc__cta-primary,
  .roi-calc__cta-secondary {
    width: 100%;
    text-align: center;
    justify-content: center;
  }

  .roi-calc__toggle-btn {
    font-size: var(--fs-xs);
    padding: 0.5rem 0.5rem;
    white-space: normal;
    text-align: center;
  }
}