/* Classes Section Styles */
.classes-section {
    margin-top: 60px;
    padding: 20px 0;
}

.classes-section h2 {
    color: #4a90e2;
    margin-bottom: 30px;
    font-size: 2rem;
}

/* Search Box */
.search-container {
    position: relative;
    margin-bottom: 30px;
}

.search-box {
    width: 100%;
    padding: 15px 50px 15px 20px;
    font-size: 1.1rem;
    border: 2px solid #4a90e2;
    border-radius: 8px;
    transition: box-shadow 0.3s;
}

.search-box:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.2);
}

.search-icon {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.2rem;
    color: #4a90e2;
    pointer-events: none;
}

/* Accordion Styles */
.classes-accordion {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.class-section {
    border: 1px solid #dee2e6;
    border-radius: 8px;
    overflow: hidden;
}

.class-header {
    background: #f8f9fa;
}

.accordion-toggle {
    width: 100%;
    padding: 20px;
    background: none;
    border: none;
    text-align: left;
    font-size: 1.2rem;
    font-weight: bold;
    color: #333;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
}

.accordion-toggle:hover {
    background: #e9ecef;
}

.toggle-icon {
    transition: transform 0.3s;
}

.class-section.collapsed .toggle-icon {
    transform: rotate(-90deg);
}

.class-content {
    padding: 20px;
    background: white;
    transition: height 0.3s ease-out;
}

.class-section.collapsed .class-content {
    display: none;
}

/* Lesson Grid */
.lesson-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.lesson-card {
    background: white;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 20px;
    text-decoration: none;
    color: #333;
    transition: transform 0.2s, box-shadow 0.2s;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.lesson-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.lesson-icon {
    font-size: 30px;
    color: #4a90e2;
    margin-bottom: 10px;
}

.lesson-title {
    font-size: 1.2rem;
    font-weight: bold;
    color: #4a90e2;
    margin-bottom: 5px;
}

.lesson-description {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.lesson-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-top: auto;
}

.tag {
    background: #e9ecef;
    color: #495057;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
}

/* Search Highlighting */
.highlight {
    background: #fff3cd;
    padding: 0 2px;
    border-radius: 2px;
}

/* Hidden Elements */
.hidden {
    display: none !important;
}

/* Animation for content height */
.class-content {
    overflow: hidden;
    transition: height 0.3s ease-out;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .classes-section {
        margin-top: 40px;
    }

    .classes-section h2 {
        font-size: 1.5rem;
    }

    .search-box {
        padding: 12px 40px 12px 15px;
        font-size: 1rem;
    }

    .lesson-grid {
        grid-template-columns: 1fr;
    }

    .accordion-toggle {
        padding: 15px;
        font-size: 1.1rem;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .lesson-card {
        border: 2px solid #000;
    }

    .tag {
        background: #000;
        color: #fff;
    }

    .search-box {
        border: 2px solid #000;
    }

    .class-section {
        border: 2px solid #000;
    }
}