/* Basic styles */
:root {
    --bg-color: #ffffff;
    --text-color: #000000;
    --accent-color: #007bff;
    --reading-bg: #f0f0f0;
}

body.dark {
    --bg-color: #333333;
    --text-color: #ffffff;
    --accent-color: #4da6ff;
    --reading-bg: #444444;
}

body.theme-high-contrast {
    --bg-color: #000000;
    --text-color: #ffffff;
    --accent-color: #ffff00;
    --reading-bg: #000000;
}

body.theme-sepia {
    --bg-color: #f4ecd8;
    --text-color: #5b4636;
    --accent-color: #a0785b;
    --reading-bg: #f4ecd8;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    transition: background-color 0.3s, color 0.3s;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

#text-input {
    width: 100%;
    height: 100px;
    margin-bottom: 10px;
}

.settings {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.settings label {
    display: flex;
    align-items: center;
    gap: 5px;
}

#reading-area {
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    background-color: var(--reading-bg);
    margin: 20px 0;
    text-align: center;
    transition: opacity 0.05s ease-in-out;
    border-radius: 8px;
}

.controls {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

button {
    padding: 10px 20px;
    background-color: var(--accent-color);
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    min-width: 44px;
    min-height: 44px;
}

button:hover {
    opacity: 0.9;
}

#progress {
    margin-bottom: 10px;
}

.collapsible {
    margin-top: 20px;
}

@media (max-width: 600px) {
    .container {
        padding: 10px;
    }
    
    button {
        padding: 15px;
        font-size: 16px;
    }
    
    #reading-area {
        height: 150px;
        font-size: 20px;
    }
    
    .settings {
        flex-direction: column;
    }
}