/**
 * Repetition Task Accordion Styles
 * Handles the accordion/toggler functionality for repetition series
 */

.repetition-accordion {
    margin-bottom: 15px;
}

.repetition-accordion-header {
    position: relative;
    cursor: pointer;
    transition: all 0.3s ease;
}

.repetition-accordion-header:hover {
    opacity: 0.8;
}

.repetition-accordion-toggle {
    position: absolute;
    top: 50%;
    left: 26px;
    transform: translateY(-50%);
    width: 24px;
    height: 24px;
    background: #017374;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 14px;
    font-weight: bold;
    transition: all 0.3s ease;
    z-index: 10;
}

.repetition-accordion-toggle:before {
    content: '+';
    transition: transform 0.3s ease;
}

.repetition-accordion.expanded .repetition-accordion-toggle:before {
    content: '−';
    transform: rotate(0deg);
}

.repetition-accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out;
    background: #f8f9fa;
    border-left: 3px solid #017374;
    margin-top: 10px;
}

.repetition-accordion.expanded .repetition-accordion-content {
    max-height: 2000px; /* Large enough to accommodate content */
    transition: max-height 0.4s ease-in;
}

.repetition-accordion-content-inner {
    padding: 15px;
}

/* Repetition series items use the same llms-lesson-preview structure as main task */

/* Responsive adjustments */
@media (max-width: 768px) {
    .repetition-accordion-toggle {
        left: 10px;
        width: 20px;
        height: 20px;
        font-size: 12px;
    }
    
    .llms-lesson-preview.has-repetition .llms-lesson-link {
        padding-left: 60px; /* Reduce padding on mobile */
    }
}

/* Integration with existing lesson preview styles */
.llms-lesson-preview.has-repetition {
    position: relative;
}

.llms-lesson-preview.has-repetition .llms-lesson-link {
    padding-left: 80px; /* Make room for toggle and badge */
}

/* Animation for smooth transitions */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.repetition-accordion.expanded .llms-lesson-preview {
    animation: fadeIn 0.3s ease-out;
}

/* Main task link styling for repetition tasks */
.has-repetition .llms-lesson-link.repetition-main-task {
    cursor: pointer;
    position: relative;
}

.has-repetition .llms-lesson-link.repetition-main-task:hover {
    background-color: rgba(1, 115, 116, 0.05);
    transition: background-color 0.3s ease;
}

/* Visual indicator that main task is expandable */
.has-repetition .llms-lesson-link.repetition-main-task:after {
    content: '';
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-top: 8px solid #017374;
    transition: transform 0.3s ease;
    opacity: 0.7;
}

.repetition-accordion.expanded .has-repetition .llms-lesson-link.repetition-main-task:after {
    transform: translateY(-50%) rotate(180deg);
}

/* Ensure main task link padding accounts for arrow */
.has-repetition .llms-lesson-link.repetition-main-task {
    padding-right: 40px;
}

/* Mobile responsive adjustments */
@media (max-width: 768px) {
    .has-repetition .llms-lesson-link.repetition-main-task {
        padding-right: 35px;
    }
    
    .has-repetition .llms-lesson-link.repetition-main-task:after {
        right: 10px;
        border-top: 6px solid #017374;
        border-left: 5px solid transparent;
        border-right: 5px solid transparent;
    }
}

/* Sidebar-specific adjustments for repetition accordion */
.lifter-topic-sidebar-wrapper .repetition-accordion {
    margin-bottom: 12px;
    border-radius: 6px;
    overflow: hidden;
}

.lifter-topic-sidebar-wrapper .repetition-accordion-header {
    position: relative;
}

.lifter-topic-sidebar-wrapper .repetition-accordion-toggle {
    left: 15px;
    width: 18px;
    height: 18px;
    font-size: 11px;
    background: #017374;
    border: 2px solid #fff;
    box-shadow: 0 2px 4px rgba(1, 115, 116, 0.2);
}

.lifter-topic-sidebar-wrapper .has-repetition .llms-lesson-link.repetition-main-task {
    padding-right: 30px;
    position: relative;
}

.lifter-topic-sidebar-wrapper .has-repetition .llms-lesson-link.repetition-main-task:after {
    right: 8px;
    border-top: 5px solid #017374;
    border-left: 3px solid transparent;
    border-right: 3px solid transparent;
    opacity: 0.8;
}

.lifter-topic-sidebar-wrapper .has-repetition .llms-lesson-link.repetition-main-task:hover:after {
    opacity: 1;
}

/* Ensure proper spacing in sidebar */
.lifter-topic-sidebar-wrapper .repetition-accordion-content {
    background: rgba(1, 115, 116, 0.02);
    border-top: 1px solid rgba(1, 115, 116, 0.1);
}

.lifter-topic-sidebar-wrapper .repetition-accordion-content-inner {
    padding: 8px 0 8px 15px;
}

.lifter-topic-sidebar-wrapper .repetition-accordion-content .llms-lesson-preview {
    margin-bottom: 6px;
    border-left: 3px solid #017374;
    padding-left: 8px;
    margin-left: 15px;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 3px;
    padding-top: 4px;
    padding-bottom: 4px;
}

.lifter-topic-sidebar-wrapper .repetition-accordion-content .llms-lesson-preview:last-child {
    margin-bottom: 0;
}

/* Better visual hierarchy for repetition items in sidebar */
.lifter-topic-sidebar-wrapper .repetition-accordion-content .llms-lesson-preview .llms-lesson-link {
    font-size: 13px;
    opacity: 0.9;
}

.lifter-topic-sidebar-wrapper .repetition-accordion-content .llms-lesson-preview .llms-lesson-link:hover {
    opacity: 1;
}