* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}

body {
    background-color: #f4f4f4;
    line-height: 1.6;
    height: 100vh;
}

.center {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
}

.logo img {
    width: 150px;
}
.logo {
    display: flex;
    justify-content: center;
    padding: 15px;
}

.container {
    max-width: 1200px;
    margin: auto;
    padding: 20px;
    background-color: #333;
    border-radius: 10px;
    color: whitesmoke;
}

input[type="text"], input[type="password"], button {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 16px;
}

button {
    background-color: #28a745;
    color: white;
    border: none;
    cursor: pointer;
}

button:hover {
    background-color: #218838;
}

button:active {
    background-color: #1e7e34;
    position: relative;
    top: 2px;
}

.alert {
    z-index: 1000;
    position: fixed;
    padding: 15px;
    background-color: #f44336;
    color: white;
    margin-bottom: 20px;
    border-radius: 4px;
    top: 0px;
    width: 100%;
    animation: 0.25s slideDown;
}

@keyframes slideDown {
    from {
        top: -100px;
    }
    to {
        top: 0px;
    }
}

.closebtn {
    margin-left: 15px;
    color: white;
    font-weight: bold;
    float: right;
    font-size: 22px;
    line-height: 20px;
    cursor: pointer;
    transition: 0.3s;
}

#alertBox {
    display: none;
}