/* courses.css */
.btn-filter {
    position: relative;
    display: inline-block;
    font-size: 14px;
    font-weight: 600;
    line-height: 1em;
    text-transform: uppercase;
    background: transparent;
    color: var(--primary-color);
    border: 1px solid var(--divider-color);
    border-radius: 100px;
    padding: 12px 24px;
    transition: all 0.5s ease-in-out;
    z-index: 1;
    cursor: pointer;
}
.btn-filter::after {
    content: "";
    position: absolute;
    top: 0; bottom: 0; left: 50%; right: 50%;
    opacity: 0;
    background: var(--accent-color);
    border-radius: 100px;
    transition: all 0.4s ease-in-out;
    z-index: -1;
}
.btn-filter:hover {
    color: var(--accent-secondary-color);
    border-color: var(--accent-color);
}
.btn-filter:hover::after {
    left: 0; right: 0; opacity: 1;
}
.btn-filter.active {
    background: var(--accent-color);
    color: var(--accent-secondary-color);
    border-color: var(--accent-color);
}
.btn-filter.active::after {
    background: var(--primary-color);
}
.btn-filter.active:hover {
    color: var(--accent-secondary-color);
}
/* Fix Tailwind's collapse utility hiding Bootstrap's navbar-collapse */
.collapse.navbar-collapse {
    visibility: visible !important;
}
.courses-ticker {
    padding: 10px 0 !important;
}
.courses-ticker .scrolling-content span {
    font-size: 18px !important;
    display: flex !important;
    align-items: center !important;
    gap: 15px !important;
}
.courses-ticker .scrolling-content {
    gap: 15px !important;
}
.courses-ticker .scrolling-content span img {
    margin-right: 0 !important;
    max-width: 20px !important;
}
.text-brand-gradient {
    background: linear-gradient(to right, #d9ff00, #a8c400);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.video-aspect { aspect-ratio: 16 / 9; }
.video-js { width: 100%; height: 100%; }
/* Override video.js big play button with brand color */
.video-js .vjs-big-play-button {
    background-color: #d9ff00;
    border: none;
    border-radius: 50%;
    width: 80px;
    height: 80px;
    line-height: 80px;
    font-size: 40px;
    top: 50%;
    left: 50%;
    margin-left: -40px;
    margin-top: -40px;
    color: #000;
}
.video-js .vjs-big-play-button:hover { background-color: #f0ff40; }
.video-js .vjs-play-progress { background-color: #d9ff00; }
.video-js .vjs-volume-level { background-color: #d9ff00; }
.video-js .vjs-control-bar {
    background-color: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(8px);
}
/* Custom brand scrollbar */
.custom-scrollbar::-webkit-scrollbar { width: 4px; }
.custom-scrollbar::-webkit-scrollbar-track { background: #1e293b; }
.custom-scrollbar::-webkit-scrollbar-thumb { background: #d9ff00; border-radius: 10px; }