/**
 * Inter-Sprint Modern Filters - CSS
 * Modern, responsive design using WordPress design patterns
 */

/* ============================================
   CSS Variables (Custom Properties)
   ============================================ */
:root {
    --isp-primary: #0073aa;
    --isp-primary-hover: #005177;
    --isp-secondary: #f0f0f1;
    --isp-text: #1d2327;
    --isp-text-light: #646970;
    --isp-border: #c3c4c7;
    --isp-border-light: #dcdcde;
    --isp-success: #00a32a;
    --isp-warning: #dba617;
    --isp-radius: 4px;
    --isp-shadow: 0 1px 3px rgba(0,0,0,0.1);
    --isp-shadow-hover: 0 4px 6px rgba(0,0,0,0.1);
    --isp-transition: all 0.2s ease;
}

/* ============================================
   Search Bar Styles
   ============================================ */
.isp-search-bar {
    background: linear-gradient(135deg, #f6f7f7 0%, #ffffff 100%);
    border: 1px solid var(--isp-border-light);
    border-radius: 8px;
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: var(--isp-shadow);
}

.isp-search-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--isp-text);
    margin: 0 0 20px 0;
    text-align: center;
}

.isp-search-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.isp-search-dimensions {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
}

.isp-field-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.isp-field-group label {
    font-size: 12px;
    font-weight: 600;
    color: var(--isp-text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.isp-select {
    appearance: none;
    background: #fff;
    border: 2px solid var(--isp-border);
    border-radius: var(--isp-radius);
    padding: 12px 36px 12px 12px;
    font-size: 16px;
    color: var(--isp-text);
    cursor: pointer;
    min-width: 100px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23646970' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    transition: var(--isp-transition);
}

.isp-select:hover {
    border-color: var(--isp-primary);
}

.isp-select:focus {
    outline: none;
    border-color: var(--isp-primary);
    box-shadow: 0 0 0 3px rgba(0, 115, 170, 0.1);
}

.isp-divider {
    font-size: 18px;
    font-weight: 600;
    color: var(--isp-text-light);
    padding-bottom: 12px;
}

/* Season Selector */
.isp-season-selector {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.isp-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--isp-text-light);
}

.isp-radio-group {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.isp-radio-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: #fff;
    border: 2px solid var(--isp-border);
    border-radius: 50px;
    cursor: pointer;
    transition: var(--isp-transition);
    user-select: none;
}

.isp-radio-btn:hover {
    border-color: var(--isp-primary);
    transform: translateY(-1px);
    box-shadow: var(--isp-shadow-hover);
}

.isp-radio-btn.active {
    background: var(--isp-primary);
    border-color: var(--isp-primary);
    color: #fff;
}

.isp-radio-btn input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.isp-radio-icon {
    font-size: 20px;
}

.isp-radio-text {
    font-size: 14px;
    font-weight: 600;
}

/* Search Actions */
.isp-search-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 8px;
}

/* ============================================
   Buttons
   ============================================ */
.isp-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--isp-transition);
}

.isp-btn-primary {
    background: var(--isp-primary);
    color: #fff;
}

.isp-btn-primary:hover {
    background: var(--isp-primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--isp-shadow-hover);
}

.isp-btn-secondary {
    background: transparent;
    color: var(--isp-text-light);
    border: 2px solid var(--isp-border);
}

.isp-btn-secondary:hover {
    border-color: var(--isp-primary);
    color: var(--isp-primary);
}

.isp-btn-small {
    padding: 8px 16px;
    font-size: 14px;
}

.isp-btn-icon {
    font-size: 18px;
}

/* ============================================
   Sidebar Filters
   ============================================ */
.isp-sidebar-filters {
    background: #fff;
    border: 1px solid var(--isp-border-light);
    border-radius: 8px;
    padding: 20px;
}

.isp-sidebar-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--isp-text);
    margin: 0 0 20px 0;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--isp-primary);
}

.isp-filter-section {
    margin-bottom: 24px;
}

.isp-filter-section:last-child {
    margin-bottom: 0;
}

.isp-filter-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--isp-text);
    margin: 0 0 12px 0;
}

/* Checkbox Group */
.isp-checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.isp-checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border-radius: var(--isp-radius);
    cursor: pointer;
    transition: var(--isp-transition);
}

.isp-checkbox-label:hover {
    background: var(--isp-secondary);
}

.isp-checkbox-label.checked {
    background: rgba(0, 115, 170, 0.1);
}

.isp-checkbox {
    appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid var(--isp-border);
    border-radius: 4px;
    cursor: pointer;
    position: relative;
    transition: var(--isp-transition);
    flex-shrink: 0;
}

.isp-checkbox:checked {
    background: var(--isp-primary);
    border-color: var(--isp-primary);
}

.isp-checkbox:checked::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #fff;
    font-size: 14px;
    font-weight: bold;
}

.isp-checkbox-text {
    font-size: 14px;
    color: var(--isp-text);
    flex: 1;
}

.isp-count {
    font-size: 12px;
    color: var(--isp-text-light);
    background: var(--isp-secondary);
    padding: 2px 8px;
    border-radius: 12px;
}

/* ============================================
   Active Filters (Pills)
   ============================================ */
.isp-active-filters {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: var(--isp-secondary);
    border-radius: 8px;
    margin-bottom: 24px;
}

.isp-active-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--isp-text-light);
}

.isp-filter-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    flex: 1;
}

.isp-filter-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: var(--isp-primary);
    color: #fff;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 500;
    text-decoration: none;
    transition: var(--isp-transition);
}

.isp-filter-pill:hover {
    background: var(--isp-primary-hover);
    transform: translateY(-1px);
}

.isp-pill-remove {
    font-size: 18px;
    line-height: 1;
    opacity: 0.8;
}

.isp-clear-all {
    font-size: 13px;
    color: var(--isp-text-light);
    text-decoration: underline;
    white-space: nowrap;
}

.isp-clear-all:hover {
    color: var(--isp-primary);
}

/* ============================================
   Dimension Widget (Sidebar)
   ============================================ */
.isp-dimension-widget {
    background: #fff;
    border: 1px solid var(--isp-border-light);
    border-radius: 8px;
    padding: 16px;
}

.isp-widget-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--isp-text);
    margin: 0 0 12px 0;
}

.isp-dimension-fields {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 12px;
}

.isp-dimension-fields span {
    font-size: 14px;
    color: var(--isp-text-light);
    font-weight: 600;
}

.isp-select-small {
    padding: 8px 28px 8px 10px;
    font-size: 14px;
    min-width: 80px;
    background-position: right 8px center;
}

/* ============================================
   Responsive Design
   ============================================ */
@media screen and (max-width: 768px) {
    .isp-search-bar {
        padding: 16px;
    }
    
    .isp-search-title {
        font-size: 18px;
    }
    
    .isp-search-dimensions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .isp-divider {
        display: none;
    }
    
    .isp-select {
        width: 100%;
    }
    
    .isp-season-selector {
        flex-direction: column;
        align-items: stretch;
    }
    
    .isp-radio-group {
        justify-content: center;
    }
    
    .isp-radio-btn {
        flex: 1;
        justify-content: center;
        padding: 10px 16px;
    }
    
    .isp-search-actions {
        flex-direction: column;
    }
    
    .isp-btn {
        width: 100%;
        justify-content: center;
    }
    
    .isp-active-filters {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media screen and (max-width: 480px) {
    .isp-radio-group {
        flex-direction: column;
        width: 100%;
    }
    
    .isp-radio-btn {
        width: 100%;
    }
    
    .isp-dimension-fields {
        flex-wrap: wrap;
    }
    
    .isp-select-small {
        flex: 1;
    }
}

/* ============================================
   WordPress Compatibility
   ============================================ */
.isp-search-bar,
.isp-sidebar-filters,
.isp-active-filters,
.isp-dimension-widget {
    box-sizing: border-box;
}

.isp-search-bar *,
.isp-sidebar-filters *,
.isp-active-filters *,
.isp-dimension-widget * {
    box-sizing: inherit;
}

/* Ensure compatibility with WooCommerce */
.woocommerce .isp-search-bar,
.woocommerce .isp-sidebar-filters,
.woocommerce .isp-active-filters {
    max-width: 100%;
}

/* Blocksy theme compatibility */
.ct-sidebar .isp-sidebar-filters {
    margin-bottom: 24px;
}

/* ============================================
   Accessibility
   ============================================ */
.isp-checkbox:focus,
.isp-select:focus,
.isp-radio-btn:focus-within {
    outline: 2px solid var(--isp-primary);
    outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .isp-btn,
    .isp-select,
    .isp-radio-btn,
    .isp-checkbox-label,
    .isp-filter-pill {
        transition: none;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    .isp-radio-btn,
    .isp-checkbox,
    .isp-select {
        border-width: 3px;
    }
}