    body {
        font-family: Arial, sans-serif;
        margin: 0;
        height: 100vh;
        display: flex;
        justify-content: center;
        align-items: center;
        background: #f6f8fb;
    }

    .login-box {
        background: white;
        padding: 40px;
        border-radius: 12px;
        box-shadow: 0 10px 25px rgba(0,0,0,0.2);
        width: 320px;
        text-align: center;
    }

    .login-box h2 {
        margin-bottom: 5px;
        color: #285596;
    }

    input {
        width: 100%;
        padding: 12px;
        margin-bottom: 20px;
        border: 1px solid #ccc;
        border-radius: 8px;
        font-size: 16px;
        outline: none;
        transition: 0.2s;
        box-sizing: border-box;
    }

    input:focus {
        border-color: #285596;
        box-shadow: 0 0 5px rgba(40,85,150,0.3);
    }

    button {
        width: 100%;
        padding: 12px;
        background: #285596;
        color: white;
        border: none;
        border-radius: 8px;
        font-size: 16px;
        cursor: pointer;
        transition: 0.2s;
    }

    button:hover {
        background: #1f447a;
        transform: scale(1.02);
    }

    .footer {
        margin-top: 15px;
        font-size: 12px;
        color: #888;
    }

    img {
        max-width: 40%;
        height: auto;
        display: block;
        margin: 0 auto;
    }

    hr {
        border: none;
        height: 1px;
        background: #eee;
        margin: 20px 0;
    }

    /* ===== TOAST ===== */
    #toast {
        position: fixed;
        top: 20px;
        left: 50%;
        transform: translateX(-50%);
        background: #dc3545;
        color: #ffffff;
        padding: 12px 20px;
        border-radius: 8px;
        box-shadow: 0 8px 20px rgba(0,0,0,0.25);
        font-size: 14px;
        opacity: 0;
        pointer-events: none;
        transition: all 0.3s ease;
        z-index: 9999;
    }

    #toast.show {
        opacity: 1;
        top: 40px;
    }