body {
            font-family: 'Poppins', sans-serif;
            margin: 0;
            padding: 0;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            background: url('/img/55.jpg') no-repeat center center fixed;
            background-size: cover;
            overflow: hidden;
        }

        .hacker-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            overflow: hidden;
            pointer-events: none;
            z-index: 1;
        }

        .hacker-overlay span {
            position: absolute;
            top: 0;
            font-size: 20px;
            opacity: 0.8;
            animation: fall linear infinite;
        }

        /* سقوط الأرقام عموديًا */
        @keyframes fall {
            0% { transform: translateY(-100%); }
            100% { transform: translateY(100vh); }
        }

        .form_container {
            position: relative;
            width: 350px;
            padding: 30px;
            background-color: rgba(27, 38, 59, 0.9);
            border-radius: 15px;
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
            text-align: center;
            color: #e0e1dd;
            z-index: 10;
        }

        h2 {
            color: #ff002b;
            font-size: 2em;
            margin-bottom: 20px;
        }

        .input_box {
            position: relative;
            margin-bottom: 20px;
        }

        .input_box input {
            width: 100%;
            padding: 10px;
            border-radius: 10px;
            border: 1px solid #4a6fa5;
            font-size: 1.2em;
            outline: none;
            text-align: center;
            background-color: #0d1b2a;
            color: #e0e1dd;
        }

        .input_box i {
            position: absolute;
            left: 10px;
            top: 50%;
            transform: translateY(-50%);
            color: #4a6fa5;
            font-size: 1.2em;
            pointer-events: none;
        }

        button.button {
            background-color: #4a6fa5;
            color: #e0e1dd;
            border: none;
            padding: 12px;
            border-radius: 12px;
            font-size: 1em;
            cursor: pointer;
            transition: background-color 0.3s;
            width: 100%;
            margin-top: 10px;
        }

        button.button:hover {
            background-color: #3b5a8a;
        }

        #errorMessage {
            color: red;
            font-size: 14px;
            display: none;
        }