.glass-panel {
    background: rgba(30, 41, 59, 0.7);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Custom range slider styling */
input[type=range] {
    -webkit-appearance: none;
    background: transparent;
}

input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none;
    height: 16px;
    width: 16px;
    border-radius: 50%;
    background: #6366f1;
    cursor: pointer;
    margin-top: -6px;
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.5);
}

input[type=range]::-webkit-slider-runnable-track {
    width: 100%;
    height: 4px;
    cursor: pointer;
    background: #334155;
    border-radius: 2px;
}

input[type=range]:focus {
    outline: none;
}

.word-focus-char {
    color: #818cf8;
    /* indigo-400 */
}