* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
        }

        .logo {
            margin-top: 20px;
            margin-bottom: 20px;
            text-align: center;
        }

        body {
            background-color: #0A0F2D;
            background-image: linear-gradient(135deg, #0A0F2D 0%, #1A237E 100%);
            color: #FFFFFF;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            justify-content: flex-start;
            align-items: center;
            text-align: center;
            padding: 20px;
        }

        .error-container {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(10px);
            padding: 3rem;
            border-radius: 1rem;
            box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
            max-width: 600px;
            width: 90%;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .error-code {
            font-size: 6rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: #0066FF;
        }

        .error-container-2 {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(10px);
            padding: 2rem;
            border-radius: 1rem;
            box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
            max-width: 800px;
            width: 100%;
            border: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 50px; /* pushes the container below the logo */
        }

        .error-code-2 {
            font-size: 1.5rem;  /* smaller font size for message headers */
            font-weight: 500;   /* lighter weight */
            color: #FFFFFF;
            margin-bottom: 1rem;
            line-height: 1.4;
        }

        h1 {
            font-size: 2rem;
            margin-bottom: 1rem;
            color: #FFFFFF;
        }

        p {
            margin-bottom: 2rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.6;
        }

        .back-button {
            display: inline-block;
            padding: 0.75rem 2rem;
            background-color: #0066FF;
            color: white;
            text-decoration: none;
            border-radius: 0.5rem;
            font-weight: 500;
            transition: background-color 0.2s;
        }

        .back-button:hover {
            background-color: #004DC0;
        }

        .footer-nice {
            position: fixed;
            bottom: 10px;
            right: 20px;
            color: white;
            font-size: 16px;
            font-family: Arial, sans-serif;
        }

        h2, h3 {
            color: white;
            text-align: center;
        }

        a {
            color: #77ccff;
        }

        @media screen and (max-width: 768px) {
          .content-box {
            width: 90%;
            font-size: 16px;
          }
        }