body {
    font-family: Arial, sans-serif;
    background-color: #23252E;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 600px;
    margin: auto;
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
    color: black;
    border-radius: 5px;
}

h2 {
    text-align: center;
    border-radius: 5px;
    color: white;
    background-color: #277EE2;
    padding: 7px;
}

ul {
    list-style-type: none;
    padding: 0;
}

li {
    margin: 10px 0;
    padding: 15px;
    border-radius: 5px;
    border: 1px solid #bababa7e;
}

li:hover {
    background: #bababa25;
}

.alert {
    display: none;
    position: fixed;
    background-color: #277EE2;
    color: white;
    padding: 15px;
    border-radius: 5px;
    z-index: 1000;
    transition: opacity 0.5s;
    animation: fadeInOut 2s forwards;
    justify-content: center;
    text-align: center;
    right: 45%;
}

.alert.show {
    display: block;
    opacity: 1;
}

@keyframes fadeInOut {
    0% { opacity: 0; }
    20% { opacity: 1; }
    80% { opacity: 1; }
    100% { opacity: 0; }
}