/**
 * VixViu Core Plugin Styles
 * Professional frontend foundation for VixViu ecosystem
 * Based on EarJelly Analysis CSS patterns (gold standard)
 */

/* ==========================================================================
   CSS Custom Properties - Foundation Layer
   ========================================================================== */

:root {
    /* Color System */
    --vixviu-core-primary: #667eea;
    --vixviu-core-secondary: #764ba2;
    --vixviu-core-success: #28a745;
    --vixviu-core-warning: #ffc107;
    --vixviu-core-error: #f44336;
    --vixviu-core-info: #17a2b8;
    
    /* Gray Scale */
    --vixviu-core-gray-50: #f8f9fa;
    --vixviu-core-gray-100: #e9ecef;
    --vixviu-core-gray-200: #dee2e6;
    --vixviu-core-gray-300: #ced4da;
    --vixviu-core-gray-400: #adb5bd;
    --vixviu-core-gray-500: #6c757d;
    --vixviu-core-gray-600: #495057;
    --vixviu-core-gray-700: #343a40;
    --vixviu-core-gray-800: #212529;
    --vixviu-core-gray-900: #1a1a1a;
    
    /* Spacing System */
    --vixviu-core-space-xs: 0.25rem;
    --vixviu-core-space-sm: 0.5rem;
    --vixviu-core-space-md: 1rem;
    --vixviu-core-space-lg: 1.5rem;
    --vixviu-core-space-xl: 2rem;
    --vixviu-core-space-2xl: 3rem;
    
    /* Typography Scale */
    --vixviu-core-font-size-xs: 0.75rem;
    --vixviu-core-font-size-sm: 0.875rem;
    --vixviu-core-font-size-md: 1rem;
    --vixviu-core-font-size-lg: 1.125rem;
    --vixviu-core-font-size-xl: 1.25rem;
    --vixviu-core-font-size-2xl: 1.5rem;
    --vixviu-core-font-size-3xl: 1.875rem;
    
    /* Border Radius */
    --vixviu-core-radius-sm: 4px;
    --vixviu-core-radius-md: 6px;
    --vixviu-core-radius-lg: 8px;
    --vixviu-core-radius-xl: 12px;
    
    /* Shadows */
    --vixviu-core-shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --vixviu-core-shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --vixviu-core-shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --vixviu-core-shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --vixviu-core-transition-fast: 0.15s ease-in-out;
    --vixviu-core-transition-normal: 0.3s ease-in-out;
    --vixviu-core-transition-slow: 0.5s ease-in-out;
}

/* ==========================================================================
   Base Reset & Normalization
   ========================================================================== */

.vixviu-core-container * {
    box-sizing: border-box;
}

.vixviu-core-container {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--vixviu-core-gray-800);
}

/* ==========================================================================
   Report Container System - Frontend Components
   ========================================================================== */

/* Main Report Container - Based on EarJelly Analysis pattern */
.vixviu-core-report-container {
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
    min-height: 200px;
    font-family: Arial, sans-serif;
    color: #333;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.vixviu-core-report-container.vixviu-loading {
    background: #f9f9f9;
    position: relative;
}

.vixviu-core-report-container.vixviu-loading::before {
    content: "Loading report...";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #666;
    font-style: italic;
    font-size: 16px;
    z-index: 1;
}

/* Report Header - Based on EarJelly Analysis pattern */
.vixviu-core-report-header {
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid #eee;
}

.vixviu-core-report-title {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 5px;
    color: var(--vixviu-core-gray-800);
}

.vixviu-core-report-subtitle {
    font-size: 16px;
    color: #666;
    margin-bottom: 10px;
    font-weight: 400;
}

/* Report Content - Based on EarJelly Analysis pattern */
.vixviu-core-report-content {
    margin: var(--vixviu-core-space-md) 0;
}

/* Report Footer - Based on EarJelly Analysis pattern */
.vixviu-core-report-footer {
    margin-top: 30px;
    padding-top: 15px;
    border-top: 1px solid #ecf0f1;
    text-align: center;
    color: #7f8c8d;
    font-size: 0.9em;
}

/* ==========================================================================
   Error Message System - Frontend Components
   ========================================================================== */

/* Error Message - Based on EarJelly Analysis pattern */
.vixviu-core-error-message {
    background-color: #ffebee;
    border: 1px solid #f44336;
    color: #c62828;
    padding: 15px;
    margin: 10px 0;
    border-radius: 4px;
    font-family: Arial, sans-serif;
    position: relative;
}

.vixviu-core-error-message p {
    margin: 0;
    font-size: 14px;
}

/* Alternative Error Style - Based on EarJelly Analysis pattern */
.vixviu-core-error {
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
    padding: 15px;
    border-radius: 4px;
    margin: 20px 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* ==========================================================================
   Loading States - Frontend Components
   ========================================================================== */

/* Loading State - Based on EarJelly Analysis pattern */
.vixviu-core-loading {
    text-align: center;
    padding: 40px;
    color: #666;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.vixviu-core-loading::before {
    content: "Loading...";
    display: block;
    font-size: 16px;
    margin-bottom: var(--vixviu-core-space-sm);
}

/* Loading Spinner */
.vixviu-core-loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--vixviu-core-gray-300);
    border-radius: 50%;
    border-top-color: var(--vixviu-core-primary);
    animation: vixviu-core-spin 1s ease-in-out infinite;
    margin-right: var(--vixviu-core-space-sm);
}

@keyframes vixviu-core-spin {
    to { transform: rotate(360deg); }
}

/* ==========================================================================
   Test Report Styles - Frontend Components
   ========================================================================== */

/* Test Report - Based on EarJelly Analysis pattern */
.vixviu-core-test-report {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f8f9fa;
    border: 2px solid #28a745;
    border-radius: 8px;
    padding: 20px;
    margin: var(--vixviu-core-space-lg) 0;
}

.vixviu-core-test-report h2 {
    color: #28a745;
    border-bottom: 2px solid #28a745;
    padding-bottom: 10px;
    margin-bottom: 20px;
    text-align: center;
    font-size: var(--vixviu-core-font-size-2xl);
    font-weight: 600;
}

.vixviu-core-test-report .test-content {
    background: #fff;
    padding: 15px;
    border-radius: 6px;
    margin-bottom: 15px;
}

.vixviu-core-test-report .test-content p {
    margin: 8px 0;
    padding: 5px 0;
    border-bottom: 1px solid #e9ecef;
}

.vixviu-core-test-report .test-content p:last-child {
    border-bottom: none;
}

.vixviu-core-test-report .test-footer {
    text-align: center;
    color: #6c757d;
    font-style: italic;
    padding-top: 10px;
    border-top: 1px solid #dee2e6;
}

/* ==========================================================================
   Fallback Report Styles - Frontend Components
   ========================================================================== */

/* Fallback Report - Based on EarJelly Analysis pattern */
.vixviu-core-fallback-report {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
}

.vixviu-core-fallback-report h2 {
    color: #2c3e50;
    border-bottom: 2px solid #3498db;
    padding-bottom: 10px;
    margin-bottom: 20px;
    font-size: var(--vixviu-core-font-size-2xl);
    font-weight: 600;
}

.vixviu-core-fallback-report h3 {
    color: #34495e;
    margin: 0 0 5px 0;
    font-size: 1.5em;
    font-weight: 600;
}

.vixviu-core-fallback-report h4 {
    color: #2c3e50;
    margin: 20px 0 10px 0;
    font-size: 1.2em;
    font-weight: 600;
}

.vixviu-core-fallback-report .song-header {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 6px;
    margin-bottom: 20px;
    border-left: 4px solid #3498db;
}

.vixviu-core-fallback-report .song-header p {
    margin: 5px 0 0 0;
    color: #7f8c8d;
    font-style: italic;
}

.vixviu-core-fallback-report .report-section {
    margin-bottom: 25px;
}

.vixviu-core-fallback-report .report-section p {
    margin: 10px 0;
}

.vixviu-core-fallback-report .report-section ul {
    margin: 10px 0;
    padding-left: 20px;
}

.vixviu-core-fallback-report .report-section li {
    margin-bottom: 8px;
}

/* ==========================================================================
   Typography System - Foundation Layer
   ========================================================================== */

/* Heading Hierarchy */
.vixviu-core-heading-1 {
    font-size: var(--vixviu-core-font-size-3xl);
    font-weight: 700;
    line-height: 1.2;
    margin: 0 0 var(--vixviu-core-space-lg) 0;
    color: var(--vixviu-core-gray-900);
}

.vixviu-core-heading-2 {
    font-size: var(--vixviu-core-font-size-2xl);
    font-weight: 600;
    line-height: 1.3;
    margin: 0 0 var(--vixviu-core-space-md) 0;
    color: var(--vixviu-core-gray-800);
}

.vixviu-core-heading-3 {
    font-size: var(--vixviu-core-font-size-xl);
    font-weight: 600;
    line-height: 1.4;
    margin: 0 0 var(--vixviu-core-space-sm) 0;
    color: var(--vixviu-core-gray-700);
}

/* Base Text Styles */
.vixviu-core-text-body {
    font-size: var(--vixviu-core-font-size-md);
    line-height: 1.6;
    color: var(--vixviu-core-gray-700);
    margin: 0 0 var(--vixviu-core-space-md) 0;
}

.vixviu-core-text-muted {
    color: var(--vixviu-core-gray-500);
    font-size: var(--vixviu-core-font-size-sm);
}

.vixviu-core-text-small {
    font-size: var(--vixviu-core-font-size-sm);
    color: var(--vixviu-core-gray-600);
}

/* ==========================================================================
   Status & Notification System - Frontend Components
   ========================================================================== */

/* Success Status */
.vixviu-core-status-success {
    background-color: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
    padding: var(--vixviu-core-space-sm) var(--vixviu-core-space-md);
    border-radius: var(--vixviu-core-radius-sm);
    margin: var(--vixviu-core-space-sm) 0;
    font-size: var(--vixviu-core-font-size-sm);
}

/* Warning Status */
.vixviu-core-status-warning {
    background-color: #fff3cd;
    border: 1px solid #ffeaa7;
    color: #856404;
    padding: var(--vixviu-core-space-sm) var(--vixviu-core-space-md);
    border-radius: var(--vixviu-core-radius-sm);
    margin: var(--vixviu-core-space-sm) 0;
    font-size: var(--vixviu-core-font-size-sm);
}

/* Info Status */
.vixviu-core-status-info {
    background-color: #d1ecf1;
    border: 1px solid #bee5eb;
    color: #0c5460;
    padding: var(--vixviu-core-space-sm) var(--vixviu-core-space-md);
    border-radius: var(--vixviu-core-radius-sm);
    margin: var(--vixviu-core-space-sm) 0;
    font-size: var(--vixviu-core-font-size-sm);
}

/* ==========================================================================
   Utility Classes - Foundation Layer
   ========================================================================== */

/* Spacing Utilities */
.vixviu-core-margin-xs { margin: var(--vixviu-core-space-xs); }
.vixviu-core-margin-sm { margin: var(--vixviu-core-space-sm); }
.vixviu-core-margin-md { margin: var(--vixviu-core-space-md); }
.vixviu-core-margin-lg { margin: var(--vixviu-core-space-lg); }
.vixviu-core-margin-xl { margin: var(--vixviu-core-space-xl); }

.vixviu-core-padding-xs { padding: var(--vixviu-core-space-xs); }
.vixviu-core-padding-sm { padding: var(--vixviu-core-space-sm); }
.vixviu-core-padding-md { padding: var(--vixviu-core-space-md); }
.vixviu-core-padding-lg { padding: var(--vixviu-core-space-lg); }
.vixviu-core-padding-xl { padding: var(--vixviu-core-space-xl); }

/* Text Utilities */
.vixviu-core-text-center { text-align: center; }
.vixviu-core-text-left { text-align: left; }
.vixviu-core-text-right { text-align: right; }

.vixviu-core-text-bold { font-weight: 700; }
.vixviu-core-text-semibold { font-weight: 600; }
.vixviu-core-text-normal { font-weight: 400; }

/* Display Utilities */
.vixviu-core-hidden { display: none; }
.vixviu-core-visible { display: block; }
.vixviu-core-inline { display: inline; }
.vixviu-core-inline-block { display: inline-block; }

/* ==========================================================================
   Responsive Design - Foundation Layer
   ========================================================================== */

/* Mobile First Responsive Design - Based on EarJelly Analysis pattern */
@media (max-width: 768px) {
    .vixviu-core-report-container {
        padding: 15px;
        margin: 15px 0;
        border-radius: 6px;
    }
    
    .vixviu-core-test-report {
        padding: 15px;
        margin: var(--vixviu-core-space-md) 0;
    }
    
    .vixviu-core-test-report h2 {
        font-size: 1.5em;
    }
    
    .vixviu-core-fallback-report h2 {
        font-size: 1.5em;
    }
    
    .vixviu-core-fallback-report h3 {
        font-size: 1.3em;
    }
    
    .vixviu-core-fallback-report h4 {
        font-size: 1.1em;
    }
    
    .vixviu-core-heading-1 {
        font-size: var(--vixviu-core-font-size-2xl);
    }
    
    .vixviu-core-heading-2 {
        font-size: var(--vixviu-core-font-size-xl);
    }
    
    .vixviu-core-heading-3 {
        font-size: var(--vixviu-core-font-size-lg);
    }
}

@media (max-width: 480px) {
    .vixviu-core-report-container {
        padding: 10px;
        margin: 10px 0;
    }
    
    .vixviu-core-test-report {
        padding: 10px;
    }
    
    .vixviu-core-loading {
        padding: 20px;
    }
    
    .vixviu-core-error-message,
    .vixviu-core-error {
        padding: 10px;
        margin: 8px 0;
    }
}

/* ==========================================================================
   WordPress Theme Compatibility - Foundation Layer
   ========================================================================== */

/* Ensure VixViu reports are visible within our container - Based on EarJelly Analysis pattern */
.vixviu-core-report-container .vixviu-report {
    background: transparent;
    border: none;
    padding: 0;
    margin: 0;
}

.vixviu-core-report-container .vixviu-report * {
    color: inherit;
}

/* WordPress Button Integration */
.vixviu-core-container .button,
.vixviu-core-container .button-primary,
.vixviu-core-container .button-secondary {
    border-radius: var(--vixviu-core-radius-md);
    padding: var(--vixviu-core-space-sm) var(--vixviu-core-space-lg);
    font-weight: 600;
    transition: all var(--vixviu-core-transition-fast);
    border: 2px solid;
    text-decoration: none;
    display: inline-block;
    cursor: pointer;
    font-size: var(--vixviu-core-font-size-sm);
}

.vixviu-core-container .button-primary {
    background: linear-gradient(135deg, var(--vixviu-core-primary) 0%, var(--vixviu-core-secondary) 100%);
    border-color: var(--vixviu-core-primary);
    color: white;
    box-shadow: var(--vixviu-core-shadow-md);
}

.vixviu-core-container .button-primary:hover {
    background: linear-gradient(135deg, #5a67d8 0%, #6b46c1 100%);
    border-color: #5a67d8;
    transform: translateY(-1px);
    box-shadow: var(--vixviu-core-shadow-lg);
}

/* ==========================================================================
   Animation System - Foundation Layer
   ========================================================================== */

/* Fade In Animation */
.vixviu-core-fade-in {
    animation: vixviu-core-fadeIn 0.6s ease-out;
}

@keyframes vixviu-core-fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Slide In Animation */
.vixviu-core-slide-in {
    animation: vixviu-core-slideIn 0.4s ease-out;
}

@keyframes vixviu-core-slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ==========================================================================
   Print Styles - Foundation Layer
   ========================================================================== */

@media print {
    .vixviu-core-report-container {
        border: 1px solid #000;
        box-shadow: none;
        background: white;
        color: black;
    }
    
    .vixviu-core-loading,
    .vixviu-core-loading-spinner {
        display: none;
    }
    
    .vixviu-core-error-message,
    .vixviu-core-error {
        border: 1px solid #000;
        background: white;
        color: black;
    }
}