.pct-main {
  max-width: 920px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .pct-main {
    grid-template-columns: 1fr 1fr;
  }
  .pct-card,
  .taxa-card,
  .juros-compostos-card,
  .consumo-card,
  .unid-card {
    display: flex;
    flex-direction: column;
  }
  .pct-card .card-body,
  .taxa-card .card-body,
  .juros-compostos-card .card-body,
  .consumo-card .card-body,
  .unid-card .card-body {
    flex: 1;
    display: flex;
    flex-direction: column;
  }
  .pct-card .btn-calcular,
  .taxa-card .btn-calcular,
  .juros-compostos-card .btn-calcular,
  .consumo-card .btn-calcular,
  .unid-card .btn-calcular {
    margin-top: auto;
  }
}

.pct-card,
.taxa-card,
.correcao-card,
.consumo-card,
.unid-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;
}

.pct-card:hover,
.taxa-card:hover,
.correcao-card:hover,
.consumo-card:hover,
.unid-card:hover {
  box-shadow: var(--shadow-lg);
}

.pct-card .card-header h2,
.taxa-card .card-header h2,
.correcao-card .card-header h2,
.consumo-card .card-header h2,
.unid-card .card-header h2 {
  font-size: 1.25rem;
  font-weight: 800;
}

.pct-card .card-body > .campo,
.taxa-card .card-body > .campo,
.correcao-card .card-body > .campo,
.consumo-card .card-body > .campo,
.unid-card .card-body > .campo {
  margin-bottom: 1rem;
}

.pct-card .btn-calcular,
.taxa-card .btn-calcular,
.correcao-card .btn-calcular,
.consumo-card .btn-calcular,
.unid-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;
  flex-shrink: 0;
}

.pct-card .btn-calcular:hover,
.taxa-card .btn-calcular:hover,
.correcao-card .btn-calcular:hover,
.consumo-card .btn-calcular:hover,
.unid-card .btn-calcular:hover {
  background: #1e40af;
  transform: scale(1.01);
}

.pct-card .btn-calcular:active,
.taxa-card .btn-calcular:active,
.correcao-card .btn-calcular:active,
.consumo-card .btn-calcular:active,
.unid-card .btn-calcular:active {
  transform: scale(0.98);
}

.pct-mode-selector {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.375rem;
  margin-bottom: 1rem;
}

.pct-mode-btn {
  padding: 0.5rem 0.25rem;
  border: 1.5px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}

.pct-mode-btn:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
}

.pct-mode-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.pct-inputs {
  margin-bottom: 1rem;
  transition: opacity 0.15s;
}

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

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

.taxa-row select {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.9rem;
  background: var(--card-bg);
  color: var(--text);
  font-family: inherit;
  cursor: pointer;
}

.pct-resultado-item {
  background: var(--bg);
  padding: 1rem;
  border-radius: 8px;
  text-align: center;
  margin-bottom: 0.5rem;
}

.pct-resultado__rotulo {
  display: block;
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.25rem;
}

.pct-resultado__valor {
  display: block;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
}

.pct-resultado-conta {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding: 0.5rem;
  background: var(--bg);
  border-radius: 6px;
  font-family: 'Courier New', monospace;
}

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

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

.corr-row input[type="month"] {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.9rem;
  background: var(--card-bg);
  color: var(--text);
  font-family: inherit;
}

.corr-resultados {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.4rem;
}

.corr-card {
  background: var(--bg);
  border-radius: 6px;
  padding: 0.5rem 0.3rem;
  text-align: center;
  border: 1px solid var(--border);
}

.corr-card__nome {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-secondary);
  margin-bottom: 0.15rem;
}

.corr-card__pct {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.1rem;
}

.corr-card__valor {
  font-size: 0.8rem;
  color: var(--text);
}

.corr-indices-label {
  font-weight: 400;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.pct-card .card-header,
.taxa-card .card-header,
.correcao-card .card-header,
.consumo-card .card-header,
.unid-card .card-header {
  text-align: center;
}

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

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

.consumo-detalhes {
  margin-top: 0.5rem;
  padding: 0.75rem;
  background: var(--bg);
  border-radius: 6px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-align: center;
  line-height: 1.8;
}

.consumo-detalhes strong {
  color: var(--text);
}

.unid-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.375rem;
  margin-bottom: 1rem;
}

.unid-tab {
  padding: 0.5rem 0.25rem;
  border: 1.5px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}

.unid-tab:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
}

.unid-tab.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

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


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

.unid-row select {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.9rem;
  background: var(--card-bg);
  color: var(--text);
  font-family: inherit;
  cursor: pointer;
}

.pct-resultado__valor--sm {
  font-size: 1.15rem;
}

#resultado-pct[hidden],
#resultado-taxa[hidden],
#resultado-corr[hidden],
#resultado-comb[hidden],
#resultado-unid[hidden] {
  display: none;
}

#resultado-pct {
  margin-top: 1rem;
}

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

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

  .pct-mode-selector {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .unid-tabs {
    grid-template-columns: repeat(3, 1fr);
  }

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

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

  .corr-indices-label {
    display: block;
    margin-top: 0.15rem;
  }

  .corr-resultados {
    grid-template-columns: repeat(2, 1fr);
  }
}