body {
    font-family: 'Inter', sans-serif;
    scroll-behavior: smooth;
}
.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}
.video-item:hover {
    background-color: #f0f4f8;
}
.video-item input:checked + label a {
    text-decoration: line-through;
    color: #6b7280;
}
.progress-bar-fill {
    transition: width 0.5s ease-in-out;
}
/* Tooltip styles */
.tooltip-container {
    position: relative;
    display: inline-block;
}
.tooltip-text {
    visibility: hidden;
    width: 220px;
    background-color: #2d3748;
    color: #fff;
    text-align: center;
    border-radius: 6px;
    padding: 8px;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    margin-left: -110px;
    opacity: 0;
    transition: opacity 0.3s;
}
.tooltip-text::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: #2d3748 transparent transparent transparent;
}
.tooltip-container:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}