/* Course cards CSS (only) */
/* Card container */
.course-item {
    background: #ffffff;
    border-radius: 8px;
    border: 1px solid #edf0f4;
    box-shadow: 0 6px 18px rgba(35, 45, 55, 0.06);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    width: 100%;
    text-align: center;
    flex: 1 1 auto;
}

/* Thumbnail (actual <img>) - only this triggers zoom & overlay */
.course-item__thumb {
    display: block;
    min-height: 215px;
    overflow: hidden;
    position: relative;
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
    background: #f6f8fb;
    text-decoration: none;
}

.course-item__thumb-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 420ms cubic-bezier(.2, .8, .2, 1);
    transform: scale(1);
    will-change: transform;
}

/* zoom on thumb hover/focus only */
.course-item__thumb:hover .course-item__thumb-img,
.course-item__thumb:focus .course-item__thumb-img,
.course-item__thumb:focus-visible .course-item__thumb-img {
    transform: scale(1.08);
}

/* overlay + "Read more" */
.course-item__overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 180ms ease, visibility 180ms;
    pointer-events: none;
    z-index: 2;
}

.course-item__thumb:hover .course-item__overlay,
.course-item__thumb:focus .course-item__overlay,
.course-item__thumb:focus-visible .course-item__overlay {
    opacity: 1;
    visibility: visible;
}

.course-item__overlay::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.22);
    border-top-left-radius: inherit;
    border-top-right-radius: inherit;
    z-index: 1;
}

.course-item__readmore {
    position: relative;
    z-index: 3;
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    font-weight: 600;
    font-size: 14px;
    pointer-events: auto;
    transform: translateY(-18px);
    text-decoration: none;
}

/* Mentor avatar (overlaps thumb) */
.course-item__mentor {
    display: inline-block;
    text-decoration: none;
    z-index: 4;
}

.course-item__avatar {
    width: 76px;
    height: 76px;
    border-radius: 50%;
    border: 4px solid #ffffff;
    box-shadow: 0 6px 18px rgba(20, 30, 50, 0.08);
    display: block;
    margin: -38px auto 10px;
    /* overlap by half the avatar height */
    object-fit: cover;
    background: #fff;
    position: relative;
    transition: box-shadow 160ms ease, transform 160ms ease, border-color 160ms ease;
}

.course-item__mentor:hover .course-item__avatar,
.course-item__mentor:focus .course-item__avatar,
.course-item__mentor:focus-visible .course-item__avatar {
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.16);
    border-color: #ffc107;
    transform: translateY(-2px);
}

/* Content area */
.course-item__content {
    padding: 2ch 10px 12px 10px;
    /* top padding accounts for avatar overlap */
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.course-item__author {
    margin-bottom: 6px;
    color: #7b8593;
    font-size: 14px;
}

.course-item__mentor-link {
    color: #7b8593;
    text-decoration: none;
    font-size: 14px;
}

.course-item__mentor-link:hover,
.course-item__mentor-link:focus {
    text-decoration: underline;
    color: #374151;
}

.course-item__title {
    font-size: 16px;
    font-weight: 600;
    color: #222;
    margin: 0;
    text-align: center;
    line-height: 1.25;
    /* clamp to 2 lines */
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.course-item__link {
    color: inherit;
    text-decoration: none;
    font-weight: 600;
}

/* Divider decorative */
.course-item__divider {
    height: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 8px;
}

.course-item__divider-line {
    width: 70px;
    height: 4px;
    background: #f2f4f7;
    border-radius: 3px;
    position: relative;
}

.course-item__divider-line::after {
    content: "";
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 28px;
    height: 4px;
    background: #ffc107;
    border-radius: 3px;
    top: 0;
}

/* Footer meta */
.course-item__meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    border-top: 1px solid #f1f4f8;
    font-size: 13px;
    color: #6b7280;
}

.course-item__meta-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.course-item__meta i {
    color: #9aa4b2;
    font-size: 16px;
    width: 18px;
    text-align: center;
}

.course-item__price {
    color: #16a34a;
    font-weight: 600;
    font-size: 14px;
}

/* Accessibility: keyboard focus outlines */
.course-item__thumb:focus-visible,
.course-item__link:focus-visible,
.course-item__mentor-link:focus-visible,
.course-item__mentor:focus-visible {
    outline: 3px solid rgba(37, 99, 235, 0.12);
    outline-offset: 2px;
    border-radius: 6px;
}

/* Responsive tweaks (mobile) */
@media (max-width: 700px) {
    .course-item__avatar {
        width: 68px;
        height: 68px;
        margin: -34px auto 10px;
    }

    .course-item__thumb {
        height: 120px;
    }

    .course-item__content {
        padding: 46px 10px 12px 10px;
    }

    .course-item__readmore {
        transform: translateY(-12px);
        padding: 7px 12px;
        font-size: 13px;
    }
}

/* Small helpers */
.course-item__thumb-img,
.course-item__avatar {
    user-select: none;
    -webkit-user-drag: none;
}