:root {
    --primary: #84cc16; /* Lime */
    --bg-gradient: linear-gradient(135deg, #ecfccb, #d9f99d, #bef264);
}

.tts-area {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

textarea {
    width: 100%;
    padding: 20px;
    border-radius: 16px;
    border: 2px solid #ccc;
    font-family: 'Kantumruy Pro', sans-serif;
    font-size: 1.5rem;
    resize: vertical;
    box-shadow: inset 0 4px 6px rgba(0,0,0,0.05);
}

textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.settings {
    display: flex;
    justify-content: center;
    background: rgba(255,255,255,0.5);
    padding: 15px;
    border-radius: 12px;
}

.input-group {
    display: flex;
    align-items: center;
    gap: 15px;
    font-weight: bold;
}

.input-group input[type="range"] {
    width: 200px;
}

.controls {
    display: flex;
    gap: 15px;
    justify-content: center;
}