/* YouTube embed responsive container */
.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 */
    height: 0;
    overflow: hidden;
    background: #000;
}
.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* Course card hover effect */
.course-card {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.course-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

/* OTP input styling */
.otp-input {
    letter-spacing: 0.5em;
    font-size: 1.25rem;
    text-align: center;
    font-variant-numeric: tabular-nums;
}

/* line clamp helper (Tailwind CDN build does not include the plugin) */
.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}