/**
 * Country Anagram Tool - WordPress Plugin Stylesheet
 * Version: 1.0.0
 * Professional responsive design for 4x4 grid layout
 */

/* CSS Variables */
:root {
    --cat-primary: #007cba;
    --cat-primary-hover: #005a87;
    --cat-success: #28a745;
    --cat-error: #dc3545;
    --cat-text: #2c3338;
    --cat-text-light: #646970;
    --cat-background: #ffffff;
    --cat-background-alt: #f6f7f7;
    --cat-border: #e9ecef;
    --cat-border-hover: #c3c4c7;
    --cat-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --cat-shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.15);
    --cat-radius: 8px;
    --cat-transition: all 0.3s ease;
}

/* Container */
.cat-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--cat-text);
}

/* Controls Section */
.cat-controls {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 30px;
    padding: 20px;
    background: var(--cat-background);
    border: 1px solid var(--cat-border);
    border-radius: var(--cat-radius);
    box-shadow: var(--cat-shadow);
}

/* Search Container */
.cat-search-container {
    position: relative;
    width: 100%;
    max-width: 400px;
}

.cat-search {
    width: 100%;
    padding: 12px 16px 12px 44px;
    border: 2px solid var(--cat-border);
    border-radius: var(--cat-radius);
    font-size: 16px;
    transition: var(--cat-transition);
    background: var(--cat-background);
}

.cat-search:focus {
    outline: none;
    border-color: var(--cat-primary);
    box-shadow: 0 0 0 3px rgba(0, 124, 186, 0.1);
}

.cat-search-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--cat-text-light);
    pointer-events: none;
    font-size: 16px;
}

/* Filters */
.cat-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.cat-filter-btn {
    padding: 8px 16px;
    border: 2px solid var(--cat-border);
    border-radius: var(--cat-radius);
    background: var(--cat-background);
    color: var(--cat-text);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--cat-transition);
    white-space: nowrap;
}

.cat-filter-btn:hover {
    border-color: var(--cat-primary);
    color: var(--cat-primary);
    transform: translateY(-1px);
}

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

/* Grid Layout - CRITICAL 4x4 GRID */
.cat-grid {
    display: grid;
    gap: 16px;
    margin-bottom: 30px;
    min-height: 400px;
}

/* Default 4x4 Grid Layout */
.cat-grid-4-4 {
    grid-template-columns: repeat(4, 1fr);
}

.cat-grid-3-3 {
    grid-template-columns: repeat(3, 1fr);
}

.cat-grid-2-2 {
    grid-template-columns: repeat(2, 1fr);
}

/* Country Cards */
.cat-country-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
    background: var(--cat-background);
    border: 2px solid var(--cat-border);
    border-radius: var(--cat-radius);
    cursor: pointer;
    transition: var(--cat-transition);
    text-decoration: none;
    position: relative;
    min-height: 140px;
    justify-content: center;
    text-align: center;
}

.cat-country-card:hover {
    border-color: var(--cat-primary);
    box-shadow: var(--cat-shadow-hover);
    transform: translateY(-3px);
}

.cat-country-card.expanded {
    grid-column: span 4;
    min-height: auto;
    padding: 0;
    display: block;
}

/* Flag Container */
.cat-flag-container {
    margin-bottom: 12px;
}

.cat-flag-container .fi {
    width: 48px;
    height: 36px;
    border-radius: 4px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
    display: inline-block;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

/* Country Info */
.cat-country-info {
    text-align: center;
}

.cat-country-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--cat-text);
    margin: 0 0 4px 0;
    line-height: 1.3;
}

.cat-continent {
    font-size: 12px;
    color: var(--cat-text-light);
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Expansion Panel */
.cat-expansion-panel {
    background: var(--cat-background-alt);
    border: 2px solid var(--cat-primary);
    border-radius: var(--cat-radius);
    animation: expandIn 0.3s ease-out;
    overflow: hidden;
}

@keyframes expandIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.cat-expansion-content {
    padding: 24px;
}

.cat-expansion-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--cat-border);
}

.cat-expansion-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--cat-text);
    margin: 0;
}

.cat-close-btn {
    background: var(--cat-error);
    color: white;
    border: none;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: var(--cat-transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.cat-close-btn:hover {
    background: #c82333;
    transform: scale(1.1);
}

/* Anagram Sections */
.cat-anagram-sections {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.cat-anagram-section h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--cat-text);
    margin: 0 0 16px 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Anagram Items */
.cat-builtin-anagrams,
.cat-ai-anagrams {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.cat-anagram-item {
    background: var(--cat-background);
    border: 1px solid var(--cat-border);
    border-radius: var(--cat-radius);
    padding: 16px;
    position: relative;
    transition: var(--cat-transition);
}

.cat-anagram-item:hover {
    box-shadow: var(--cat-shadow);
}

.cat-anagram-text {
    font-size: 18px;
    font-weight: 600;
    color: var(--cat-primary);
    margin-bottom: 4px;
}

.cat-anagram-meaning {
    font-size: 14px;
    color: var(--cat-text);
    margin-bottom: 4px;
    font-style: italic;
}

.cat-anagram-description {
    font-size: 12px;
    color: var(--cat-text-light);
    margin-bottom: 12px;
}

.cat-copy-btn {
    background: var(--cat-success);
    color: white;
    border: none;
    border-radius: var(--cat-radius);
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--cat-transition);
    position: absolute;
    top: 12px;
    right: 12px;
}

.cat-copy-btn:hover {
    background: #218838;
    transform: translateY(-1px);
}

.cat-generate-ai-btn {
    background: var(--cat-primary);
    color: white;
    border: none;
    border-radius: var(--cat-radius);
    padding: 12px 20px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--cat-transition);
}

.cat-generate-ai-btn:hover {
    background: var(--cat-primary-hover);
    transform: translateY(-1px);
}

/* Pagination */
.cat-pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background: var(--cat-background);
    border: 1px solid var(--cat-border);
    border-radius: var(--cat-radius);
    box-shadow: var(--cat-shadow);
    margin-top: 20px;
}

.cat-page-btn {
    background: var(--cat-primary);
    color: white;
    border: none;
    border-radius: var(--cat-radius);
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--cat-transition);
}

.cat-page-btn:hover:not(:disabled) {
    background: var(--cat-primary-hover);
    transform: translateY(-1px);
}

.cat-page-btn:disabled {
    background: var(--cat-text-light);
    cursor: not-allowed;
    transform: none;
}

.cat-pagination-info {
    font-size: 14px;
    color: var(--cat-text);
    font-weight: 500;
}

/* Loading States */
.cat-loading,
.cat-loading-anagrams {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 60px 20px;
    font-size: 16px;
    color: var(--cat-text-light);
    text-align: center;
}

.cat-loading::after,
.cat-loading-anagrams::after {
    content: '';
    width: 20px;
    height: 20px;
    margin-left: 10px;
    border: 2px solid var(--cat-border);
    border-top: 2px solid var(--cat-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Error States */
.cat-error,
.cat-ai-error,
.cat-no-results {
    text-align: center;
    padding: 40px 20px;
    color: var(--cat-text-light);
    font-style: italic;
}

.cat-no-results {
    background: var(--cat-background-alt);
    border: 2px dashed var(--cat-border);
    border-radius: var(--cat-radius);
    grid-column: 1 / -1;
}

/* Toast Notifications */
.cat-toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--cat-success);
    color: white;
    padding: 12px 20px;
    border-radius: var(--cat-radius);
    box-shadow: var(--cat-shadow-hover);
    transform: translateY(100px);
    opacity: 0;
    transition: var(--cat-transition);
    z-index: 10000;
    font-weight: 500;
}

.cat-toast.show {
    transform: translateY(0);
    opacity: 1;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .cat-grid-4-4 {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .cat-anagram-sections {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .cat-country-card.expanded {
        grid-column: span 3;
    }
}

@media (max-width: 768px) {
    .cat-container {
        padding: 16px;
    }
    
    .cat-controls {
        padding: 16px;
    }
    
    .cat-grid-4-4,
    .cat-grid-3-3 {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .cat-country-card.expanded {
        grid-column: span 2;
    }
    
    .cat-filters {
        gap: 6px;
    }
    
    .cat-filter-btn {
        padding: 6px 12px;
        font-size: 13px;
    }
    
    .cat-pagination {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
    
    .cat-expansion-content {
        padding: 16px;
    }
}

@media (max-width: 480px) {
    .cat-grid-4-4,
    .cat-grid-3-3,
    .cat-grid-2-2 {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .cat-country-card.expanded {
        grid-column: span 1;
    }
    
    .cat-country-card {
        padding: 16px;
        min-height: 120px;
    }
    
    .cat-search {
        font-size: 14px;
        padding: 10px 14px 10px 40px;
    }
    
    .cat-filters {
        justify-content: center;
    }
    
    .cat-filter-btn {
        padding: 5px 10px;
        font-size: 12px;
    }
}

/* Print Styles */
@media print {
    .cat-toast,
    .cat-pagination,
    .cat-controls {
        display: none !important;
    }
    
    .cat-country-card {
        break-inside: avoid;
        border: 1px solid #000;
    }
    
    .cat-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --cat-border: #000000;
        --cat-text: #000000;
        --cat-background: #ffffff;
        --cat-primary: #0000ff;
    }
    
    .cat-country-card {
        border-width: 3px;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        transform: none !important;
    }
}

/* Focus Styles for Accessibility */
.cat-country-card:focus,
.cat-filter-btn:focus,
.cat-page-btn:focus,
.cat-search:focus,
.cat-copy-btn:focus,
.cat-generate-ai-btn:focus,
.cat-close-btn:focus {
    outline: 3px solid var(--cat-primary);
    outline-offset: 2px;
}

/* Screen Reader Only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}