body {
      background: linear-gradient(135deg, #eef2f7, #dbeafe);
      font-family: "Segoe UI", sans-serif;
    }

    /* Header */
    .header {
      padding: 30px 20px;
      background: linear-gradient(90deg, #2563eb, #1e40af);
      text-align: center;
      color: white;
      border-bottom: 3px solid #1e3a8a;
      box-shadow: 0 2px 12px rgba(0,0,0,0.2);
    }
    .header img {
      height: 70px;
      margin-bottom: 10px;
    }
    .header-title h2 {
      margin: 0;
      font-size: 1.9rem;
      font-weight: 700;
    }
    .header-title p {
      margin: 5px 0 15px;
      font-size: 1rem;
      opacity: 0.9;
    }

    /* Search Bar */
    .search-bar {
      max-width: 420px;
      margin: 0 auto;
      position: relative;
      margin-top: 25px !important;
    }
    .search-bar input {
      font-size: large;
      border-radius: 25px;
      padding-left: 40px;
      box-shadow: 0 2px 6px rgba(0,0,0,0.15);
    }
    .search-bar .bi-search {
      position: absolute;
      top: 50%;
      left: 15px;
      transform: translateY(-50%);
      color: #6b7280;
      font-size: 1.1rem;
    }


    
    .system-card {
      border: none;
      border-radius: 18px;
      background: white;
      box-shadow: 0px 4px 14px rgba(0,0,0,0.1);
      transition: transform 0.25s ease, box-shadow 0.25s ease;
      cursor: pointer;
      padding: 25px 10px;
    }
    .system-card:hover {
      transform: translateY(-6px);
      box-shadow: 0px 8px 20px rgba(0,0,0,0.18);
    }
    .system-icon {
      font-size: 60px;
      color: #fbbf24; /* color gold folder icon */
      margin-bottom: 15px;
      transition: color 0.3s ease, text-shadow 0.3s ease;
    }
    .system-card:hover .system-icon {
      color: #f59e0b;
      text-shadow: 0 0 8px rgba(245,158,11,0.5);
    }
    .system-name {
      font-size: 1rem;
      font-weight: 600;
      color: #1f2937;
      word-break: break-word;
      text-transform: uppercase;
    }