* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    background: var(--bkg-color);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    padding: 20px;
}

.container {
    background-color: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 8px 16px black;
    text-align: center;
    width: 350px;
    max-width: 100%;
}

h1 {
    font-size: 24px;
    color: black;
    margin-bottom: 20px;
    font-weight: bold;
}

textarea {
    width: 100%;
    height: 150px;
    padding: 15px;
    margin-bottom: 20px;
    border: 1px solid white;
    border-radius: 8px;
    font-size: 16px;
    font-family: Arial, Helvetica, sans-serif;
    resize: none;
}

textarea:focus {
    border-color: black;
    outline: none;
}

button {
    padding: 12px 20px;
    background: #42a5f5;
    color: white;
    border-radius: 8px;
    cursor: pointer;
    font-size: 18px;
    font-weight: bold;
    width: 100%;
    background-image: url("speak.png");
    background-repeat: no-repeat;
    background-position: left 10px center;
    background-size: 20px;
}

.theme-toggle {
    width: 2rem;
    height: 2rem;
    margin-top: 10px;
    background: transparent;
    cursor: pointer;
    padding: 0;
    margin: 0;
    justify-content: center;
    align-items: center;
}

.theme-toggle img {
    width: 20px;
    height: 20px;
}

button:hover {
    background: #1565C0;
}

select {
    width: 100%;
    padding: 12px;
    margin-bottom: 20px;
    border: 2px solid black;
    border-radius: 8px;
    font-size: 18px;
    font-family: Arial, Helvetica, sans-serif;
    background-color: #42a5f5;
    background-image: url("sound.png");
    background-repeat: no-repeat;
    background-position: left 10px center;
    background-size: 20px;
    color: white;
    text-align: center;
    font-weight: bold;
}

select:hover {
    background: #1565C0;
}

section:focus {
    border-color: black;
    outline: none;
}

.dark-mode {
    --bkg-color: #1565C0;
}