:root {
            --color-primary: #304ffe;
            --color-dark: #151515;
            --color-text: #303030;
            --color-light: #ffffff;
            --color-background: #ffffff;
            --color-border: #e0e0e0;
        }
        * { box-sizing: border-box; }
        body {
            font-family: 'Roboto', sans-serif;
            background-color: var(--color-background);
            color: var(--color-text);
        }
        header {
            position: sticky;
            top: 0;
            z-index: 999;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            background: rgba(0, 0, 0, 1);
            display: flex;
            justify-content: left;
            align-items: left;
            padding: 21px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .logo {
            margin-left: 15px;
            height: 55px;
        }
        .container-fluid.main-wrapper {
            max-width: 1500px;
            padding: 21px;
        }
        h2, h3 { color: var(--color-primary); font-weight: 400;}
        h2 {
          border-left: 3px solid var(--color-primary);
          padding-left: 15.75px;
        }
        .card { border-radius: 45px; border: none; }
        .form-control, .form-select {
            border-radius: 9px;
            padding: 12px;
            border-color: var(--color-border);
            transition: border-color 0.3s, box-shadow 0.3s;
            font-size: 0.9em;
            color: var(--color-dark); 
        }
        .form-control:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 0.1rem var(--color-primary); 
        }
        #item-table-input thead th {
            background-color: var(--color-primary); 
            color: var(--color-light);
            font-weight: 400;
            text-align: center;
        }
        #item-table-input td input {
            border: 1px solid #ddd !important;
            padding: 12px !important;
            height: auto;
            text-align: center;
        }
        .btn-primary {
            background-color: var(--color-primary); 
            border-color: var(--color-primary);
            transition: background-color 0.3s;
        }
        .btn-primary:hover {
            filter: brightness(0.9);
        }
        .material-symbols-outlined {
            font-variation-settings: 'FILL' 0, 'wght' 300, 'GRAD' 0, 'opsz' 24;
            vertical-align: middle;
            font-size: 1.2em;
            margin-right: 5px;
        }
        .btn-outline-primary {
            --bs-btn-color: var(--color-primary);
            --bs-btn-border-color: var(--color-primary);
            --bs-btn-hover-bg: var(--color-primary);
            --bs-btn-hover-border-color: var(--color-primary);
            --bs-btn-active-bg: var(--color-primary);
            --bs-btn-active-border-color: var(--color-primary);
            --bs-btn-active-color: var(--color-light);
        }
footer {
    background: rgba(0, 0, 0, 1);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: white;
    padding: 30px 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }
  .footer-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    max-width: 1200px;
    margin: 0 auto;
  }
  .footer-left {
    flex: 1;
  }
  .footer-logo {
    width: 55.75%;
  }
  .footer-right {
    flex: 2;
    text-align: center;
  }
  .footer-links {
    margin-bottom: 15px;
  }
  .footer-links a {
    color: white;
    margin: 15px;
    font-size: 1.21em;
    text-decoration: none;
    font-weight: 300;
  }
  .footer-links a:hover {
    text-decoration: underline;
  }
  .footer-copy {
    font-size: 0.75rem;
    opacity: 0.7;
    font-weight: 300;
  }
  @media (max-width: 745px) {
    .footer-container {
      flex-direction: column;
      align-items: center;
      text-align: center;
    }
    .footer-left, .footer-right {
      flex: unset;
      margin-bottom: 15px;
    }
    .footer-links a {
      margin: 0 12px;
    }
  }