/* Eco-Swap Recommendation Engine Styles */

.swap-main {
    padding: 140px 0 var(--spacing-3xl);
    background: var(--bg-primary);
    min-height: calc(100vh - 100px);
}

.swap-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.swap-header .page-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
}

.swap-header .page-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-medium);
    max-width: 600px;
    margin: 0 auto;
}

/* Filters Section */
.swap-filters {
    background: var(--bg-primary);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
    margin-bottom: var(--spacing-3xl);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.filter-group {
    display: flex;
    flex-direction: column;
}

.filter-label {
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
    font-size: var(--font-size-base);
}

.filter-select {
    padding: var(--spacing-md);
    border: 2px solid var(--border-medium);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    transition: border-color var(--transition-fast);
    background: var(--bg-primary);
    color: var(--text-dark);
    cursor: pointer;
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px rgba(53, 166, 113, 0.1);
}

.context-checkboxes {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    max-height: 200px;
    overflow-y: auto;
    padding: var(--spacing-sm);
    border: 2px solid var(--border-light);
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
}

.context-checkbox-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}

.context-checkbox-item:hover {
    background: var(--soft-green);
}

.context-checkbox-item input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--primary-green);
    cursor: pointer;
}

.context-checkbox-item label {
    cursor: pointer;
    font-size: var(--font-size-sm);
    color: var(--text-dark);
    flex: 1;
}

.confidence-slider {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: var(--border-light);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.confidence-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-green);
    cursor: pointer;
}

.confidence-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-green);
    cursor: pointer;
    border: none;
}

.confidence-value {
    font-weight: 600;
    color: var(--primary-green);
    font-size: var(--font-size-lg);
    margin-top: var(--spacing-xs);
}

/* Results Section */
.swap-results {
    margin-top: var(--spacing-2xl);
}

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

.results-title {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--text-dark);
}

.results-count {
    font-size: var(--font-size-base);
    color: var(--text-medium);
    font-weight: 500;
}

.swaps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.swap-card {
    background: var(--bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 2px solid var(--border-light);
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.swap-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-green);
}

.swap-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    gap: var(--spacing-md);
}

.swap-category {
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    background: var(--soft-green);
    color: var(--primary-green);
}

.swap-confidence {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.confidence-bar {
    width: 60px;
    height: 8px;
    border-radius: 4px;
    background: var(--border-light);
    overflow: hidden;
}

.confidence-fill {
    height: 100%;
    transition: width 0.3s ease, background-color 0.3s ease;
}

.confidence-low {
    background: #ef4444;
}

.confidence-medium {
    background: #f59e0b;
}

.confidence-high {
    background: #10b981;
}

.swap-content {
    margin-bottom: var(--spacing-lg);
}

.swap-instead {
    font-size: var(--font-size-sm);
    color: var(--text-light);
    margin-bottom: var(--spacing-xs);
}

.swap-instead strong {
    color: var(--text-dark);
}

.swap-do {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--primary-green);
    margin-bottom: var(--spacing-sm);
}

.swap-rationale {
    font-size: var(--font-size-base);
    color: var(--text-medium);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.swap-meta {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-md);
}

.swap-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.badge-impact {
    background: #dbeafe;
    color: #1e40af;
}

.badge-difficulty {
    background: #fee2e2;
    color: #991b1b;
}

.badge-score {
    background: var(--soft-green);
    color: var(--primary-green);
    font-weight: 700;
    position: relative;
    display: inline-flex;
    align-items: center;
}

.info-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-left: var(--spacing-xs);
    cursor: pointer;
    font-size: var(--font-size-sm);
    width: 18px;
    height: 18px;
    border-radius: 50%;
    transition: all var(--transition-fast);
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.info-icon:hover {
    background: rgba(53, 166, 113, 0.1);
    transform: scale(1.1);
}

.info-icon:focus {
    outline: 2px solid var(--primary-green);
    outline-offset: 2px;
}

.confidence-tooltip {
    position: absolute;
    bottom: calc(100% + var(--spacing-sm));
    left: 50%;
    transform: translateX(-50%) translateY(-5px);
    background: var(--text-dark);
    color: white;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 280px;
    max-width: 320px;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
    font-size: var(--font-size-sm);
    line-height: 1.6;
    margin-bottom: var(--spacing-xs);
}

.confidence-tooltip.visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}

.tooltip-content {
    position: relative;
}

.tooltip-content p {
    margin: 0 0 var(--spacing-sm) 0;
}

.tooltip-content p:last-child {
    margin-bottom: 0;
}

.tooltip-description {
    font-weight: 500;
    margin-bottom: var(--spacing-sm) !important;
}

.tooltip-calculation,
.tooltip-why {
    margin-top: var(--spacing-sm);
    opacity: 0.9;
}

.tooltip-calculation strong,
.tooltip-why strong {
    color: var(--primary-green);
    font-weight: 600;
}

.tooltip-arrow {
    position: absolute;
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-top: 6px solid var(--text-dark);
}

/* Mobile adjustments */
@media (max-width: 768px) {
    .confidence-tooltip {
        min-width: 250px;
        max-width: calc(100vw - 40px);
        left: auto;
        right: 0;
        transform: translateX(0) translateY(-5px);
    }
    
    .confidence-tooltip.visible {
        transform: translateX(0) translateY(0);
    }
    
    .tooltip-arrow {
        left: auto;
        right: 20px;
        transform: translateX(0);
    }
    
    .info-icon {
        width: 20px;
        height: 20px;
        font-size: var(--font-size-base);
    }
    
    /* Ensure tooltip doesn't overflow on small screens */
    .swap-meta {
        position: relative;
    }
}

/* Prevent tooltip from being cut off */
.swap-card {
    overflow: visible;
}

.swap-meta {
    position: relative;
}

.swap-score {
    background: var(--primary-green);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 700;
    box-shadow: var(--shadow-sm);
    white-space: nowrap;
}

.no-results {
    text-align: center;
    padding: var(--spacing-3xl);
    color: var(--text-medium);
    font-size: var(--font-size-lg);
}

/* Responsive Design */
@media (max-width: 768px) {
    .swap-main {
        padding: 120px 0 var(--spacing-2xl);
    }

    .swap-header .page-title {
        font-size: var(--font-size-3xl);
    }

    .swap-filters {
        grid-template-columns: 1fr;
        padding: var(--spacing-lg);
    }

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

    .results-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .swap-header .page-title {
        font-size: var(--font-size-2xl);
    }

    .swap-filters {
        padding: var(--spacing-md);
    }

    .swap-card {
        padding: var(--spacing-lg);
    }
}