body {
    background: #111;
    color: #fff;
    font-family: Arial, sans-serif;
    text-align: center;
    margin-top: 50px;
}

h1 {
    color: #00eaff;
    margin-bottom: 20px;
}

.container {
    width: 400px;
    margin: auto;
    background: #1c1c1c;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 0 15px #00eaff55;
}

input {
    width: 90%;
    padding: 10px;
    border: none;
    border-radius: 8px;
    margin-bottom: 15px;
}

button {
    padding: 10px 15px;
    margin: 5px;
    border: none;
    cursor: pointer;
    font-weight: bold;
    border-radius: 8px;
    transition: 0.3s;
}

button:hover {
    transform: scale(1.05);
}

button:nth-child(2) {
    background: #00eaff;
    color: #000;
}

button:nth-child(3) {
    background: #ff3131;
    color: #fff;
}

button:nth-child(4) {
    background: #3cff00;
    color: #000;
}

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

ul li {
    background: #222;
    padding: 10px;
    margin: 5px 0;
    border-radius: 6px;
}