.learning-section {
    display: none;
    flex-direction: column;
    gap: 24px;
    animation: fadeIn 0.4s ease forwards;
}

.learning-section.active {
    display: flex;
}

.page-header-text {
    margin-bottom: 8px;
}

.page-subtitle {
    font-size: 1.05rem;
    color: var(--text-light);
    line-height: 1.5;
}

.section-title {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.01em;
    margin-bottom: 8px;
}

.section-header-nav {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 8px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 16px;
}

.section-category-title {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.01em;
}

/* Search Bar Styling */
.search-bar-container {
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 12px;
    margin-bottom: 40px;
    box-shadow: var(--shadow-md);
}

.search-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: 20px;
    font-size: 1.15rem;
    color: var(--text-light);
}

.search-input {
    width: 100%;
    font-family: var(--font-family);
    font-size: 1.05rem;
    padding: 14px 20px 14px 50px;
    border-radius: var(--radius-md);
    border: 2px solid var(--border);
    outline: none;
    background-color: rgba(244, 246, 242, 0.78);
    transition: var(--transition);
}

@media (max-width: 767px) {
    .search-input {
        font-size: 0.95rem;
        padding: 13px 14px 13px 46px;
    }

    .search-icon {
        left: 16px;
    }
}

.search-input:focus {
    border-color: var(--primary);
    background-color: var(--surface);
    box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.1);
}

/* Dynamic Cards Grid */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 24px;
}

.card {
    background-color: var(--surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    padding: 24px 20px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    height: 160px; /* Static height instead of aspect-ratio is more readable */
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    isolation: isolate;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-5px);
    border-color: rgba(16, 185, 129, 0.3);
    box-shadow: var(--shadow-md);
}

.card:hover::before {
    transform: scaleX(1);
}

.card-icon {
    font-size: 2.5rem;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.01em;
}

.card-meta {
    font-size: 0.8rem;
    color: var(--text-light);
}

/* Loader custom margins */
.cards-grid .loading-spinner {
    grid-column: 1 / -1;
    margin: 60px auto;
}

.curriculum-empty-state,
.curriculum-load-error {
    grid-column: 1 / -1;
    padding: 28px 20px;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface);
    color: var(--text-light);
    text-align: center;
}

.curriculum-load-error p { margin-bottom: 14px; }

/* ============================================
   Lesson Title — Tagalog Subtitle Styling
   ============================================ */
.card-title .title-tagalog {
    font-size: 0.75em;
    color: var(--text-light);
    font-weight: 500;
    font-style: italic;
    letter-spacing: 0;
}

@media (max-width: 600px) {
    .card-title .title-tagalog {
        font-size: 0.7em;
    }
}