.glass-card {
  background: var(--container-bg);
  backdrop-filter: blur(20px);
  border-radius: 1rem;
  padding: 2rem;
  margin: 0.5rem auto 40vh;
  width: 100%;
  box-shadow: inset 0 0 10px rgba(255, 255, 255, 0.2),
              0 8px 32px rgba(0, 0, 0, 0.7);
  text-align: center;
}

#budget-planner .panel {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-align: left;
  color: var(--text-color);
  font-weight: 600;
  font-size: 1.1rem;
  padding: 1rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  opacity: 0.4;
  transform: scale(0.95);
  transition: opacity 0.3s ease, transform 0.3s ease;
}
#budget-planner .panel:first-of-type {
  border-top: none;
}

#budget-planner .panel-icon {
  width: 2rem;
  height: 2rem;
  stroke: currentColor;
  flex-shrink: 0;
}

#budget-planner .panel-text {
  flex: 1;
}

.wallet-icon {
  animation: wallet-bounce 1.5s ease-in-out infinite;
}

@keyframes wallet-bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-3px); }
}

#budget-planner .panel.active {
  opacity: 1;
  transform: scale(1);
}

#budget-planner .currency-input {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
}

#budget-planner .currency-symbol {
  font-weight: 600;
}

#budget-planner #netPay,
#budget-planner #fixedExpenses {
  text-align: center;
}

#budget-planner .duration-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

#budget-planner .duration-btn {
  background: var(--button-bg);
  color: #fff;
  border: none;
  border-radius: 0.25rem;
  width: 1.75rem;
  height: 1.75rem;
  font-size: 1rem;
  cursor: pointer;
  line-height: 1;
}

#budget-planner .duration-btn:hover {
  background: var(--button-hover-bg);
}

#tradeoffMessage {
  min-height: 1em;
}