body {

    background: #111827;
    color: white;

    font-family: Arial;

    margin: 0;
    padding: 40px;
}

.container {

    max-width: 900px;
    margin: auto;
}

h1, h2 {

    margin-bottom: 20px;
}

.controls {

    display: flex;
    gap: 10px;

    margin-bottom: 30px;
}

input {

    flex: 1;

    padding: 12px;

    border: none;
    border-radius: 8px;

    background: #1f2937;
    color: white;
}

textarea {

    width: 100%;
    height: 250px;

    padding: 12px;

    border: none;
    border-radius: 8px;

    resize: vertical;

    background: #1f2937;
    color: white;

    margin-bottom: 10px;
}

button {

    padding: 12px 20px;

    border: none;
    border-radius: 8px;

    cursor: pointer;

    background: #2563eb;
    color: white;

    transition: 0.2s;
}

button:hover {

    background: #1d4ed8;
}

ul {

    list-style: none;
    padding: 0;
}

li {

    background: #1f2937;

    padding: 12px;

    margin-bottom: 10px;

    border-radius: 8px;

    display: flex;

    justify-content: space-between;
    align-items: center;
}