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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #f4f6f9;
  color: #333;
  padding: 0;
  margin: 0;
}

/* Container Layout */
.container {
  width: 100%;
  max-width: 100%;
  padding: 30px 40px;
  background: white;
  border-radius: 10px;
  margin: auto;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  overflow-x: auto;
}

/* Headings */
h1, h2 {
  text-align: center;
  margin-bottom: 20px;
  color: #2c3e50;
}

/* Form Inputs */
form input, form select {
  display: block;
  width: 100%;
  padding: 12px;
  margin-bottom: 15px;
  border: 1px solid #ccc;
  border-radius: 8px;
  font-size: 16px;
}

/* Buttons */
button {
  background: #007bff;
  color: white;
  padding: 10px 18px;
  border: none;
  border-radius: 8px;
  font-size: 15px;
  cursor: pointer;
  transition: background 0.3s ease;
  margin-right: 8px;
}

button:hover {
  background: #0056b3;
}

button:disabled {
  background: #ccc;
  cursor: not-allowed;
}

/* Table Styling */
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 10px;
}

th, td {
  border: 1px solid #ddd;
  padding: 10px;
  text-align: center;
}

th {
  background-color: #f1f1f1;
  font-weight: bold;
}

/* Billing Section */
.bill {
  margin-top: 20px;
  padding: 15px;
  background: #e9f7ef;
  border-left: 5px solid #2ecc71;
  border-radius: 6px;
}

/* Responsive Table */
.responsive-table {
  overflow-x: auto;
  margin-bottom: 20px;
}

/* Billing Row */
.bill-row {
  display: flex;
  gap: 10px;
  margin-bottom: 10px;
  align-items: center;
}

.bill-row select,
.bill-row input {
  flex: 1;
}

.bill-row button.remove-bill-item {
  background: #e74c3c;
  padding: 8px 14px;
  font-size: 18px;
  line-height: 1;
}

/* Add Item Button */
#add-bill-item {
  margin-bottom: 15px;
  background: #28a745;
}

#add-bill-item:hover {
  background: #218838;
}

/* Invoice Section */
#invoice {
  margin-top: 20px;
  background: #fff3cd;
  padding: 15px;
  border-left: 5px solid #ffc107;
  border-radius: 5px;
}

#invoice h2 {
  margin-bottom: 10px;
  color: #856404;
}

#invoice button {
  margin-top: 10px;
  background: #343a40;
}

#invoice button:hover {
  background: #1d2124;
}

/* Media Queries for Mobile */
@media screen and (max-width: 768px) {
  .container {
    padding: 20px 15px;
  }

  .bill-row {
    flex-direction: column;
    align-items: stretch;
  }

  button {
    width: 100%;
    margin-bottom: 10px;
  }

  form input, form select {
    font-size: 15px;
  }
}
body {
  font-family: 'Segoe UI', sans-serif;
  background-color: #f5f5f5;
  padding: 30px;
}

.ledger-container {
  max-width: 1000px;
  margin: auto;
  background-color: #fff;
  padding: 25px;
  border-radius: 12px;
  box-shadow: 0 0 20px rgba(0,0,0,0.1);
}

form {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 10px;
  margin-bottom: 20px;
}

form input, form button {
  padding: 10px;
  font-size: 16px;
}

form button {
  background-color: #007bff;
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

form button:hover {
  background-color: #0056b3;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  padding: 12px;
  text-align: center;
  border-bottom: 1px solid #ddd;
}

th {
  background-color: #007BFF;
  color: white;
}

tr:hover {
  background-color: #f9f9f9;
}

.credit {
  color: green;
}

.debit {
  color: red;
}