body {
        margin: 0;
        background: #111;
        color: #eee;
        font-family: Arial, sans-serif;
        text-align: center;
    }

    h1, h2 {
        font-weight: 300;
        letter-spacing: 1px;
    }

    .container {
        max-width: 900px;
        margin: 40px auto;
        padding: 20px;
    }

    .card {
        background: #1a1a1a;
        padding: 25px;
        border-radius: 12px;
        box-shadow: 0 0 20px rgba(0,0,0,0.4);
        margin-bottom: 30px;
    }

    input[type="password"],
    input[type="file"] {
        background: #222;
        border: 1px solid #333;
        padding: 10px;
        border-radius: 6px;
        color: #eee;
        margin-bottom: 10px;
        width: 250px;
    }

    button {
        background: #444;
        border: none;
        padding: 10px 20px;
        border-radius: 6px;
        color: #eee;
        cursor: pointer;
        transition: 0.2s;
        margin-top: 10px;
    }

    button:hover {
        background: #666;
    }

    .hidden { display: none; }

    .image-grid {
        display: flex;
        flex-wrap: wrap;
        gap: 15px;
        justify-content: center;
    }

    .image-item {
        background: #1f1f1f;
        padding: 10px;
        border-radius: 8px;
        width: 180px;
    }

    .image-item img {
        width: 100%;
        border-radius: 6px;
    }

    code {
        font-size: 11px;
        word-break: break-all;
        color: #bbb;
    }