/**
 * PharmDecks Advanced Filters - Frontend Styles
 */

/* Filter Wrapper */
.pharmdecks-filters-wrapper {
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 30px;
}

.pharmdecks-filters-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #f3f4f6;
}

.pharmdecks-filters-header h3 {
    margin: 0;
    font-size: 20px;
    font-weight: 600;
    color: #111827;
}

.pharmdecks-reset-filters {
    background: #f3f4f6;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: #374151;
    transition: all 0.2s ease;
}

.pharmdecks-reset-filters:hover {
    background: #e5e7eb;
    color: #111827;
}

/* Filter Groups */
.pharmdecks-filter-group {
    margin-bottom: 20px;
}

.pharmdecks-filter-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 14px;
    color: #374151;
}

.pharmdecks-filter-select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 14px;
    color: #111827;
    background: #fff;
    cursor: pointer;
    transition: all 0.2s ease;
}

.pharmdecks-filter-select:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.pharmdecks-filter-select:hover {
    border-color: #9ca3af;
}

/* Results Count */
.pharmdecks-filter-results-count {
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid #e5e7eb;
}

.results-count {
    font-size: 14px;
    color: #6b7280;
    font-weight: 500;
}

/* Courses Grid */
.pharmdecks-courses-grid {
    position: relative;
}

.pharmdecks-courses-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
    transition: opacity 0.3s ease;
}

.pharmdecks-courses-grid[data-columns="2"] .pharmdecks-courses-container {
    grid-template-columns: repeat(2, 1fr);
}

.pharmdecks-courses-grid[data-columns="3"] .pharmdecks-courses-container {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

.pharmdecks-courses-grid[data-columns="4"] .pharmdecks-courses-container {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
}

/* Course Card */
.pharmdecks-course-card {
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
    height: 100%;
}

.pharmdecks-course-card:hover {
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.course-card-inner {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.course-thumbnail {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/9;
}

.course-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.pharmdecks-course-card:hover .course-thumbnail img {
    transform: scale(1.05);
}

.course-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.course-badge-free {
    background: #10b981;
    color: #fff;
}

.course-content {
    padding: 20px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.course-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
}

.course-tag {
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.year-tag {
    background: #dbeafe;
    color: #1e40af;
}

.content-tag {
    background: #fef3c7;
    color: #92400e;
}

.course-title {
    margin: 0 0 12px;
    font-size: 18px;
    font-weight: 600;
    line-height: 1.4;
}

.course-title a {
    color: #111827;
    text-decoration: none;
    transition: color 0.2s ease;
}

.course-title a:hover {
    color: #3b82f6;
}

.course-excerpt {
    margin-bottom: 16px;
    font-size: 14px;
    color: #6b7280;
    line-height: 1.6;
    flex-grow: 1;
}

.course-meta {
    padding: 12px 0;
    border-top: 1px solid #f3f4f6;
    margin-bottom: 16px;
}

.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: #6b7280;
}

.course-footer {
    margin-top: auto;
}

.course-button {
    display: block;
    width: 100%;
    padding: 12px;
    background: #3b82f6;
    color: #fff;
    text-align: center;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.2s ease;
}

.course-button:hover {
    background: #2563eb;
    color: #fff;
    transform: translateY(-1px);
}

/* No Courses Found */
.no-courses-found {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    background: #f9fafb;
    border-radius: 12px;
}

.no-courses-found p {
    font-size: 16px;
    color: #6b7280;
    margin: 0;
}

/* Loading State */
.pharmdecks-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 10;
}

.pharmdecks-loading .spinner {
    border: 4px solid #f3f4f6;
    border-top: 4px solid #3b82f6;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto 12px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.pharmdecks-loading p {
    font-size: 14px;
    color: #6b7280;
    margin: 0;
}

/* Responsive */
@media (max-width: 768px) {
    .pharmdecks-courses-container {
        grid-template-columns: 1fr;
    }
    
    .pharmdecks-filters-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
}

/* Sidebar Layout */
.pharmdecks-filters-sidebar {
    max-width: 100%;
}

/* Top Layout */
.pharmdecks-filters-top .pharmdecks-filter-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.pharmdecks-filters-top .pharmdecks-filter-results-count {
    grid-column: 1 / -1;
}