* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: system-ui, sans-serif;
  background: lavender;
  padding: 20px;
}

/* Container */
.container {
  max-width: 1100px;
  margin: auto;
  background: #fdfbff;
  padding: 24px;
  border-radius: 10px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

h1 {
  margin-bottom: 20px;
}

/* Balance */
.balance-card {
  display: flex;
  justify-content: space-between;
  background: #efe6ff;
  padding: 16px;
  border-radius: 8px;
}

.income-expense {
  display: flex;
  gap: 30px;
}

/* Form */
.transaction-form {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 20px;
}

.transaction-form input,
.transaction-form select {
  padding: 10px;
  border-radius: 6px;
  border: 1px solid #ccc;
}

.transaction-form button {
  grid-column: span 2;
  padding: 12px;
  background: #7b61ff;
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

.transaction-form button:hover {
  background: #5f49d6;
}

/* Transactions */
#transaction-list {
  list-style: none;
  margin-top: 12px;
}

#transaction-list li {
  display: flex;
  justify-content: space-between;
  background: #faf7ff;
  padding: 10px;
  border-radius: 6px;
  margin-bottom: 6px;
}

#transaction-list li.income {
  border-left: 4px solid #4caf50;
}

#transaction-list li.expense {
  border-left: 4px solid #f44336;
}

.edit-btn {
  background: #ff9800;
  color: white;
  border: none;
  padding: 6px;
  margin-right: 5px;
  border-radius: 4px;
  cursor: pointer;
}

.delete-btn {
  background: #f44336;
  color: white;
  border: none;
  padding: 6px;
  border-radius: 4px;
  cursor: pointer;
}

/* Charts */
.charts-container {
  display: flex;
  justify-content: space-around;
  margin-top: 30px;
}

.chart-section {
  text-align: center;
}