/**
 * Frontend Styles for Course Navigation
 */

.wp-lms-course-navigation {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid #ddd;
}

.course-nav-buttons {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.course-nav-prev,
.course-nav-next,
.course-nav-overview {
    display: inline-block;
    padding: 10px 20px;
    background: #2271b1;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    transition: background-color 0.2s;
    font-weight: 500;
}

.course-nav-prev:hover,
.course-nav-next:hover,
.course-nav-overview:hover {
    background: #135e96;
    color: #fff;
}

.course-nav-overview {
    background: #646970;
}

.course-nav-overview:hover {
    background: #50575e;
}

@media (max-width: 600px) {
    .course-nav-buttons {
        flex-direction: column;
    }
    
    .course-nav-prev,
    .course-nav-next,
    .course-nav-overview {
        width: 100%;
        text-align: center;
    }
}

/* Course chapters accordion */
.wp-lms-course-accordion {
    margin-top: 10px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.wp-lms-course-chapter {
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    background: #fff;
    overflow: hidden;
    box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}

.wp-lms-course-chapter-title {
    cursor: pointer;
    padding: 14px 16px;
    background: linear-gradient(180deg, #fafafa, #f6f7f7);
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.wp-lms-course-chapter-title::-webkit-details-marker {
    display: none;
}

.wp-lms-course-chapter-title::after {
    content: '▾';
    color: #0073aa;
    opacity: 0.8;
    transform: rotate(-90deg);
    transition: transform 0.2s ease;
}

.wp-lms-course-chapter[open] > .wp-lms-course-chapter-title::after {
    transform: rotate(0deg);
}

.wp-lms-course-chapter-lessons {
    padding: 10px 18px 14px 18px;
    margin: 0;
}

.wp-lms-course-chapter-lessons li {
    margin: 6px 0;
}

/* Lesson cards (frontend, used by shortcodes) */
.wp-lms-course-lessons-block .wp-lms-course-title,
.wp-lms-course-all-block .wp-lms-course-title {
    margin-bottom: 1em;
    font-size: 1.6em;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.wp-lms-course-lessons-block .wp-lms-course-description,
.wp-lms-course-all-block .wp-lms-course-description {
    margin-bottom: 1.25em;
    color: #6b7280;
}

.wp-lms-lessons-grid {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 14px;
}

.wp-lms-lesson-card {
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 14px;
    overflow: hidden;
    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
    box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}

.wp-lms-lesson-card:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 24px rgba(0,0,0,0.10);
    border-color: #0073aa;
}

.wp-lms-lesson-link {
    display: flex;
    align-items: center;
    padding: 16px;
    text-decoration: none;
    color: inherit;
    position: relative;
    gap: 14px;
}

.wp-lms-lesson-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    min-width: 44px;
    text-align: center;
    background: #0073aa;
    color: #fff;
    border-radius: 999px;
    font-weight: 700;
    font-size: 1.05em;
    flex-shrink: 0;
}

.wp-lms-lesson-content {
    flex: 1;
    min-width: 0;
}

.wp-lms-lesson-title {
    margin: 0;
    font-size: 1.1em;
    font-weight: 700;
    color: #111827;
}

.wp-lms-lesson-excerpt {
    margin: 0.25em 0 0 0;
    font-size: 0.95em;
    color: #6b7280;
    line-height: 1.5;
}

.wp-lms-lesson-arrow {
    font-size: 1.4em;
    color: #0073aa;
    opacity: 0.75;
    transition: transform 0.18s ease, opacity 0.18s ease;
    flex-shrink: 0;
}

.wp-lms-lesson-card:hover .wp-lms-lesson-arrow {
    opacity: 1;
    transform: translateX(4px);
}

.wp-lms-ungrouped-lessons {
    margin-top: 16px;
}