/* ============================================================
   COURSE DETAIL PAGE STYLES
   ============================================================ */

.course-detail-page {
    background-color: var(--bg-body);
}

/* Course Syllabus / Curriculum Accordion */
.syllabus-accordion {
    margin-top: var(--space-lg);
}

.syllabus-section {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    overflow: hidden;
}

.syllabus-section-header {
    background-color: var(--bg-input);
    padding: 14px var(--space-lg);
    font-weight: 700;
    color: var(--primary);
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    user-select: none;
    transition: background-color var(--transition-fast);
}

.syllabus-section-header:hover {
    background-color: #e6ecf1;
}

.syllabus-lessons-list {
    background-color: var(--bg-white);
}

.syllabus-lesson-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px var(--space-lg);
    border-top: 1px solid var(--border-light);
    font-size: var(--text-sm);
    transition: background-color var(--transition-fast);
}

.syllabus-lesson-item:hover {
    background-color: #fafbfc;
}

.syllabus-lesson-item a {
    color: var(--text-primary);
    font-weight: 600;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.syllabus-lesson-item a:hover {
    color: var(--accent);
}

.syllabus-lesson-item.locked {
    color: var(--text-muted);
}

/* Sticky Widget Card */
.course-right-sidebar {
    position: relative;
}

.course-sticky-card {
    position: sticky;
    top: 100px;
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    transition: box-shadow var(--transition-base);
}

.course-sticky-card:hover {
    box-shadow: var(--shadow-xl);
}

/* Responsive adjust */
@media (max-width: 992px) {
    .course-detail-page .container {
        grid-template-columns: 1fr !important;
        padding-top: var(--space-lg) !important;
        gap: var(--space-xl) !important;
    }
    
    .course-detail-page .container > div:first-child {
        grid-template-columns: 1fr !important;
        text-align: center;
    }
    
    .course-detail-page .container > div:first-child .flex {
        justify-content: center;
    }
    
    .course-right-sidebar {
        order: -1; /* Put the checkout card first on mobile */
    }
    
    .course-sticky-card {
        position: relative;
        top: 0;
        margin-bottom: var(--space-lg);
    }
}