.inv-main {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.inv-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: box-shadow 0.2s;
}

.inv-card:hover {
  box-shadow: var(--shadow-lg);
}

.inv-card .card-header h2 {
  font-size: 1.25rem;
  font-weight: 800;
}

.inv-card .card-body > .campo {
  margin-bottom: 1rem;
}

.inv-card .btn-calcular {
  width: 100%;
  padding: 0.75rem;
  border: none;
  border-radius: 8px;
  background: var(--primary);
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  margin-bottom: 1rem;
}

.inv-card .btn-calcular:hover {
  background: #1e40af;
  transform: scale(1.01);
}

.inv-card .btn-calcular:active {
  transform: scale(0.98);
}

.inv-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.inv-row .campo {
  margin-bottom: 0;
}

.inv-row-3 {
  grid-template-columns: 1fr 1fr 1fr;
}

.inv-subtitle {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.5rem;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid var(--border);
}

.inv-subtitle i {
  margin-right: 0.35rem;
}

.inv-tabela-wrapper {
  overflow-x: auto;
  margin-bottom: 1rem;
}

.inv-tabela {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
}

.inv-tabela th {
  background: var(--primary);
  color: #fff;
  padding: 0.6rem 0.5rem;
  text-align: center;
  font-weight: 700;
  white-space: nowrap;
}

.inv-tabela th:first-child {
  text-align: left;
}

.inv-tabela td {
  padding: 0.5rem;
  text-align: center;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.inv-tabela td:first-child {
  text-align: left;
  font-weight: 600;
}

.inv-tabela tr:nth-child(even) {
  background: var(--bg);
}

.inv-tabela tr:hover {
  background: var(--primary-light);
}

.inv-tabela .melhor {
  background: #dcfce7 !important;
}

.inv-tabela .melhor td {
  font-weight: 700;
  color: #166534;
}

.inv-tabela .inv-taxa-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.inv-equivalencia {
  background: var(--bg);
  padding: 1rem;
  border-radius: 8px;
  border: 1px solid var(--border);
}

.inv-equivalencia h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--primary);
}

.inv-equivalencia h3 i {
  margin-right: 0.35rem;
}

.inv-equivalencia p {
  font-size: 0.85rem;
  color: var(--text);
  line-height: 1.6;
}

#resultado-inv[hidden] {
  display: none;
}

.inv-main .card-visao-rapida__body {
  justify-content: center;
  text-align: center;
}

@media (min-width: 992px) {
  .inv-main {
    max-width: 1100px;
  }
}

@media (max-width: 767px) {
  .inv-main {
    padding: 0;
  }

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

  .inv-row-3 {
    grid-template-columns: 1fr;
  }

  .inv-tabela {
    font-size: 0.7rem;
  }

  .inv-tabela th,
  .inv-tabela td {
    padding: 0.4rem 0.3rem;
  }
}