/* Studies Page Styles */

/* Studies Main */
.studies-main {
    min-height: calc(100vh - 80px);
    background: var(--background-light);
    padding: var(--spacing-xl) 0;
}

.studies-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-2xl);
    background: white;
    padding: var(--spacing-2xl);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
}

.header-content h1 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.header-content p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin: 0;
}

.header-stats {
    display: flex;
    gap: var(--spacing-xl);
}

.stat-card {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--background-light);
    border-radius: var(--radius-xl);
    min-width: 120px;
}

.stat-value {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* Filters Section */
.filters-section {
    margin-bottom: var(--spacing-2xl);
}

.search-filter-bar {
    display: flex;
    gap: var(--spacing-lg);
    align-items: flex-end;
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-md);
}

.search-box {
    position: relative;
    flex: 1;
    max-width: 400px;
}

.search-box i {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
}

.search-box input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) calc(var(--spacing-md) + 24px);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    transition: border-color var(--transition-normal);
}

.search-box input:focus {
    border-color: var(--primary-color);
    outline: none;
}

.clear-search {
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
}

.clear-search:hover {
    color: var(--danger-color);
    background: var(--background-light);
}

.filter-controls {
    display: flex;
    gap: var(--spacing-md);
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.filter-group label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-primary);
}

.filter-group select {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    background: white;
    cursor: pointer;
    transition: border-color var(--transition-normal);
    min-width: 120px;
}

.filter-group select:focus {
    border-color: var(--primary-color);
    outline: none;
}

.view-controls {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-end;
}

.view-toggle {
    padding: var(--spacing-sm);
    border: 2px solid var(--border-color);
    background: white;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    color: var(--text-light);
}

.view-toggle.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.view-toggle:hover:not(.active) {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.sort-toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--border-color);
    background: white;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    position: relative;
}

.sort-toggle:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* Studies Section */
.studies-section {
    margin-bottom: var(--spacing-2xl);
}

.studies-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.results-info {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
}

.quick-filters {
    display: flex;
    gap: var(--spacing-sm);
}

.quick-filter {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--border-color);
    background: white;
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-primary);
    transition: all var(--transition-normal);
}

.quick-filter.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.quick-filter:hover:not(.active) {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* Studies Grid */
.studies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

/* Study Card */
.study-card {
    background: white;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all var(--transition-normal);
    cursor: pointer;
    border: 2px solid transparent;
    padding: var(--spacing-sm);
}

.study-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.study-header {
    padding: 0 0 var(--spacing-xs) 0;
}

.study-name-text {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 3px;
    line-height: 1.1;
}

.study-type-text {
    font-size: 9px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    line-height: 1;
}

/* Study description removed from cards */

.study-reward-display {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-secondary);
    color: white;
    padding: var(--spacing-xs);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xs);
}

.reward-amount {
    font-size: 14px;
    font-weight: 700;
    margin-right: 3px;
}

.reward-label {
    font-size: 9px;
    opacity: 0.9;
}

.study-details {
    padding: 0;
    margin-bottom: 0;
}

.study-meta-grid {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xs);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 3px;
    font-size: 9px;
    color: var(--text-secondary);
}

.meta-item i {
    color: var(--primary-color);
    width: 10px;
    font-size: 8px;
}

/* Removed study actions section - cards are now clickable for interaction */

/* Loading States */
.loading-studies {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-4xl);
    color: var(--text-secondary);
}

.loading-studies .loading-spinner {
    margin-bottom: var(--spacing-lg);
}

/* No Results */
.no-results {
    text-align: center;
    padding: var(--spacing-4xl);
    color: var(--text-secondary);
}

.no-results-icon {
    font-size: var(--font-size-4xl);
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
}

.no-results h3 {
    font-size: var(--font-size-xl);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.no-results p {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-xl);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .studies-grid {
        grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    }
    
    .search-filter-bar {
        flex-wrap: wrap;
        gap: var(--spacing-md);
    }
    
    .filter-controls {
        flex-wrap: wrap;
    }
}

@media (max-width: 768px) {
    .page-header {
        flex-direction: column;
        gap: var(--spacing-lg);
        text-align: center;
    }
    
    .header-stats {
        gap: var(--spacing-md);
    }
    
    .stat-card {
        min-width: 100px;
        padding: var(--spacing-md);
    }
    
    .search-filter-bar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-box {
        max-width: none;
    }
    
    .filter-controls {
        justify-content: space-between;
    }
    
    .view-controls {
        justify-content: center;
    }
    
    .studies-header {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: stretch;
    }
    
    .quick-filters {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .studies-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .studies-container {
        padding: 0 var(--spacing-md);
    }
    
    .page-header {
        padding: var(--spacing-lg);
    }
    
    .search-filter-bar {
        padding: var(--spacing-lg);
    }
    
    .filter-controls {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .study-card {
        margin: 0 -var(--spacing-sm);
    }
    
    .study-actions {
        flex-direction: column;
    }
    
    .header-stats {
        flex-direction: column;
        width: 100%;
    }
    
    .stat-card {
        min-width: auto;
    }
}

/* Survey Modal Styles */
.survey-modal-content {
    max-width: 95vw;
    max-height: 95vh;
    width: 1200px;
    height: 800px;
    display: flex;
    flex-direction: column;
}

.survey-modal-body {
    flex: 1;
    padding: 0;
    overflow: hidden;
}

.survey-container {
    width: 100%;
    height: 100%;
    position: relative;
}

.survey-container iframe {
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.survey-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    background: var(--background-light);
}

.survey-modal-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.survey-modal-close {
    background: none;
    border: none;
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
}

.survey-modal-close:hover {
    background: var(--background-light);
    color: var(--text-primary);
}

.survey-modal-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    background: var(--background-light);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
}

/* Survey Study Card Styles */
.study-card.survey-study {
    border-left: 4px solid var(--primary-color);
}

.study-card.survey-study .study-category {
    background: var(--primary-color);
    color: white;
}

/* Survey study cards maintain their blue accent styling */

/* Completed Study Card Styles */
.study-card.completed-study {
    border-left: 4px solid var(--success-color);
    opacity: 0.9;
}

.study-card.completed-study .study-category.completed {
    background: var(--success-color);
    color: white;
}

.study-card.completed-study .study-reward-display.completed {
    background: var(--success-color);
    color: white;
}

/* Completed study cards are clickable for viewing details */

/* Survey Modal Fallback */
.survey-fallback {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    background: var(--background-light);
    border-radius: var(--radius-lg);
    margin: var(--spacing-lg);
}

.survey-fallback-content {
    text-align: center;
    padding: var(--spacing-2xl);
    max-width: 400px;
}

.survey-fallback-content h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-xl);
}

.survey-fallback-content p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.survey-fallback-content .btn-primary,
.survey-fallback-content .btn-secondary {
    margin: 0 var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
}

.survey-info {
    background: var(--background-light);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin: var(--spacing-lg) 0;
    border-left: 4px solid var(--primary-color);
}

.survey-info p {
    margin: 0;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.survey-info strong {
    color: var(--text-primary);
}

/* Mobile Survey Modal */
@media (max-width: 768px) {
    .survey-modal-content {
        width: 100vw;
        height: 100vh;
        max-width: 100vw;
        max-height: 100vh;
        border-radius: 0;
    }
    
    .survey-container iframe {
        border-radius: 0;
    }
    
    .survey-fallback-content {
        padding: var(--spacing-lg);
    }
    
    .survey-fallback-content .btn-primary,
    .survey-fallback-content .btn-secondary {
        display: block;
        width: 100%;
        margin: var(--spacing-sm) 0;
    }
}