/* Reset and base styles */
::-webkit-scrollbar {
    width: 5px;
    height: 9px;
   
 }
 
 ::-webkit-scrollbar-thumb {
    background: #444;
    border-radius: 5px;
 }

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #1a1919;
    margin: 0;
    padding: 20px;
    color: #333;
  }
  
  /* Main container */
  .container {
    max-width: 900px;
    margin: auto;
    background: #000;
    padding: 40px;
    border-radius: 5px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    animation: fadeIn 1s ease;
  }
  
  /* Fade-in animation */
  @keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
  }
  
  /* Heading */
  h1 {
    text-align: center;
    margin-bottom: 30px;
    font-size: 2.5rem;
    color: #fff;
  }
  
  /* Input section */
  .input-section {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 25px;
  }
  
  .input-section input {
    flex: 1;
    padding: 12px;
    font-size: 1rem;
    color: #ccc;
    outline: none;
    border: 1px solid #ccc;
    background: #1a1919;
    border-radius: 6px;
    transition: border-color 0.3s;
  }
  
  .input-section input:focus {
    border-color: #2196f3;
  }
  
  .input-section button {
    padding: 12px 24px;
    background: #1976d2;
    border: none;
    color: #fff;
    cursor: pointer;
    font-size: 1rem;
    border-radius: 6px;
    transition: transform 0.2s, background 0.3s;
  }
  
  .input-section button:hover {
    transform: scale(1.05);
    background: #0d47a1
  }
  
  /* Invoice table */
  #invoiceTable {
    width: 100%;
    color: #ccc;
    border-collapse: collapse;
    margin-bottom: 20px;
    background: #1a1919;
    border-radius: 8px;
    overflow: hidden;
  }
  
  #invoiceTable th, #invoiceTable td {
    border: 1px solid #ddd;
    padding: 12px;
    text-align: center;
  }
  
  #invoiceTable th {
    background: #1a1919;
    color: hsl(0, 0%, 100%);
    font-weight: bold;
  }
  
  #invoiceTable tbody tr:nth-child(even) {
    color: #ccc;
    background: #1a1919;
  }
  
  /* Total section */
  .total-section {
    text-align: right;
    margin-top: 15px;
    font-size: 1.5rem;
    color: #2196f3;
  }
  
  /* Download button */
  .download-btn {
    display: block;
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, #2196f3, #1976d2);
    color: white;
    border: none;
    font-size: 1.2rem;
    margin-top: 25px;
    cursor: pointer;
    border-radius: 8px;
    transition: transform 0.2s, background 0.3s;
  }
  
  .download-btn:hover {
    transform: scale(1.05);
    background: linear-gradient(135deg, #1976d2, #0d47a1);
  }
  
  /* Remove item button inside table */
  #invoiceTable button {
    padding: 8px 16px;
    background-color: #e53935;
    border: none;
    color: #fff;
    font-size: 0.9rem;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.3s;
  }
  
  #invoiceTable button:hover {
    background-color: #c62828;
  }