.courses-page {
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.page-header {
    margin-bottom: 3rem;
}

.page-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    color: var(--color-text);
}

.page-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
}

.filters-container {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.sidebar {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 1rem;
    padding: 1.5rem;
    height: fit-content;
    position: sticky;
    top: 80px;
}

.filter-group {
    margin-bottom: 2rem;
}

.filter-title {
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.filter-options {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.filter-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 0.5rem;
    transition: all 0.2s ease;
}

.filter-option:hover {
    background: rgba(76, 94, 247, 0.1);
}

.filter-option input[type="checkbox"] {
    cursor: pointer;
    accent-color: #4c5ef7;
}

.filter-option label {
    cursor: pointer;
    flex: 1;
}

.filter-count {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-left: auto;
}

.search-bar {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.search-input {
    flex: 1;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    color: var(--color-text);
    font-size: 1rem;
}

.search-input::placeholder {
    color: var(--color-text-secondary);
}

.search-input:focus {
    outline: none;
    border-color: #4c5ef7;
    box-shadow: 0 0 0 3px rgba(76, 94, 247, 0.1);
}

.sort-select {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    color: var(--color-text);
    cursor: pointer;
}

.sort-select:focus {
    outline: none;
    border-color: #4c5ef7;
}

.courses-content {
    flex: 1;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--color-border);
}

.results-count {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

.view-options {
    display: flex;
    gap: 0.5rem;
}

.view-btn {
    padding: 0.5rem 0.75rem;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 0.5rem;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.view-btn.active {
    background: #4c5ef7;
    color: white;
    border-color: #4c5ef7;
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.course-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 0.75rem;
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    cursor: pointer;
}

.course-card:hover {
    border-color: #4c5ef7;
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(76, 94, 247, 0.2);
}

.course-image {
    width: 100%;
    height: 160px;
    background: linear-gradient(135deg, rgba(76, 94, 247, 0.3), rgba(34, 211, 238, 0.3));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    border-bottom: 1px solid var(--color-border);
}

.course-content {
    padding: 1rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.course-category {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    background: rgba(76, 94, 247, 0.2);
    color: #5d6eff;
    border-radius: 2rem;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    width: fit-content;
}

.course-title {
    font-weight: 700;
    margin-bottom: 0.5rem;
    line-height: 1.3;
    color: var(--color-text);
}

.course-meta {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-bottom: 0.75rem;
    display: flex;
    gap: 1rem;
}

.course-stats {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.course-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
    margin-top: auto;
}

.course-rating {
    display: flex;
    gap: 0.25rem;
    color: #f97316;
    font-size: 0.9rem;
}

.course-price {
    font-weight: 700;
    color: #10b981;
}

.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 3rem;
}

.pagination-btn {
    padding: 0.5rem 1rem;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 0.5rem;
    color: var(--color-text);
    cursor: pointer;
    transition: all 0.2s ease;
}

.pagination-btn:hover {
    border-color: #4c5ef7;
    color: #4c5ef7;
}

.pagination-btn.active {
    background: #4c5ef7;
    color: white;
    border-color: #4c5ef7;
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

@media (max-width: 1024px) {
    .filters-container {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: relative;
        top: 0;
        display: none; /* Hide sidebar on mobile for now, or make it a collapsible */
    }
    /* Add a button to show filters if needed, or just stack them */
    .courses-page.show-filters .sidebar {
        display: block;
    }
}

@media (max-width: 768px) {
    .page-title {
        font-size: 1.75rem;
    }

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

    .search-bar {
        flex-direction: column;
    }

    .filters-container {
        grid-template-columns: 1fr;
    }
}