/* Variables CSS */
:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-dark: #0f172a;
    
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    
    --border-color: #e2e8f0;
    --border-hover: #cbd5e1;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

/* Reset y base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    min-height: 100vh;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg);
}

/* Header */
.header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-xl) 0;
}

.header-content {
    background: var(--bg-primary);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
    position: relative;
}

.header-logo {
    height: 45px;
    width: auto;
    opacity: 0.9;
    transition: opacity var(--transition-fast);
    position: absolute;
    right: 0;
}

.header-logo:hover {
    opacity: 1;
}

.logo {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--primary-color);
    margin: 0 auto;
    letter-spacing: -0.025em;
}

.tagline {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.subtitle {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    font-weight: 400;
}

/* Form Section */
.form-section {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    margin-bottom: var(--spacing-2xl);
    overflow: hidden;
}

.form-container {
    padding: var(--spacing-2xl);
}

.form-container h2 {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.product-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

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

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    transition: all var(--transition-fast);
    background: var(--bg-primary);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgb(37 99 235 / 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-help {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    line-height: 1.4;
}

/* Advanced Section */
.advanced-section {
    border-top: 1px solid var(--border-color);
    padding-top: var(--spacing-lg);
}

.toggle-advanced {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.toggle-advanced:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-hover);
}

.chevron {
    transition: transform var(--transition-fast);
}

.toggle-advanced.active .chevron {
    transform: rotate(180deg);
}

.advanced-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.advanced-content.active {
    max-height: 1000px;
    padding-top: var(--spacing-lg);
}

/* Checkbox */
.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-weight: 500;
    color: var(--text-primary);
    margin-top: var(--spacing-md);
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    position: relative;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 12px;
    font-weight: bold;
}

/* Buttons */
.btn-primary {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg) var(--spacing-xl);
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    font-size: var(--font-size-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-md);
    margin-top: var(--spacing-lg);
}

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

.btn-primary:active {
    transform: translateY(0);
    box-shadow: var(--shadow-md);
}

.btn-primary:disabled {
    background: var(--text-muted);
    cursor: not-allowed;
    transform: none;
    box-shadow: var(--shadow-sm);
}

.btn-secondary {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-primary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-secondary:hover {
    background: var(--bg-secondary);
    border-color: var(--border-hover);
    color: var(--text-primary);
}

.btn-icon {
    transition: transform var(--transition-fast);
}

.btn-primary:hover .btn-icon {
    transform: scale(1.1);
}

/* Loading Section */
.loading-section {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    margin-bottom: var(--spacing-2xl);
    overflow: hidden;
}

.loading-container {
    padding: var(--spacing-2xl);
    text-align: center;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-lg);
}

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

@keyframes pulse {
    0%, 100% { 
        opacity: 1;
        box-shadow: 0 0 0 0 rgba(66, 153, 225, 0.4);
    }
    50% { 
        opacity: 0.7;
        box-shadow: 0 0 0 10px rgba(66, 153, 225, 0);
    }
}

.loading-container h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.loading-container p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin-bottom: var(--spacing-xl);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--success-color));
    border-radius: var(--radius-sm);
    transition: width var(--transition-slow);
    width: 0%;
}

.loading-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    opacity: 0.5;
}

.step.active {
    opacity: 1;
    background: var(--bg-secondary);
    transform: scale(1.05);
    animation: pulse 1.5s ease-in-out infinite;
}

.step.completed {
    opacity: 1;
    background: var(--success-color);
    color: white;
}

.step-icon {
    font-size: var(--font-size-xl);
}

.step span {
    font-size: var(--font-size-xs);
    font-weight: 500;
    text-align: center;
}

/* Results Section */
.results-section {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    margin-bottom: var(--spacing-2xl);
    overflow: hidden;
}

.results-container {
    padding: var(--spacing-2xl);
}

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

.results-header h2 {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--text-primary);
}

.results-actions {
    display: flex;
    gap: var(--spacing-md);
}

/* Product Info */
.product-info {
    background: var(--bg-secondary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
    border: 1px solid var(--border-color);
}

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

.product-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.product-badges {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.badge {
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--primary-color);
    color: white;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.badge.success {
    background: var(--success-color);
}

.badge.warning {
    background: var(--warning-color);
}

/* Images Section */
.images-section {
    margin-bottom: var(--spacing-xl);
}

.images-section h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.carousel-container {
    position: relative;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--border-color);
}

.carousel {
    display: flex;
    overflow: hidden;
    border-radius: var(--radius-md);
    position: relative;
    height: 400px;
    background: var(--bg-primary);
}

.carousel-item {
    position: absolute;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-normal) cubic-bezier(0.4, 0, 0.2, 1);
    left: 0;
    top: 0;
}

.carousel-item img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.carousel-item img:hover {
    transform: scale(1.02);
}

.carousel-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: var(--spacing-lg);
}

.carousel-btn {
    width: 40px;
    height: 40px;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
}

.carousel-btn:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.carousel-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.carousel-dots {
    display: flex;
    gap: var(--spacing-sm);
}

.carousel-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--border-color);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.carousel-dot.active {
    background: var(--primary-color);
    transform: scale(1.2);
}

/* Product Details */
.product-details {
    margin-bottom: var(--spacing-xl);
}

.product-details h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.product-tabs-container {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.product-tabs {
    display: flex;
    border-bottom: 2px solid var(--border-color);
    background: var(--bg-primary);
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.product-tab {
    padding: var(--spacing-lg) var(--spacing-xl);
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    font-weight: 500;
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    flex: 1;
    min-width: 150px;
}

.product-tab:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.product-tab.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    background: var(--bg-secondary);
}

.product-tabs-content {
    padding: var(--spacing-xl);
}

.product-tab-content {
    display: none;
}

.product-tab-content.active {
    display: block;
    animation: fadeIn var(--transition-normal) ease-in-out;
}

.description-card {
    background: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--border-color);
}

.description-card h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: var(--font-size-sm);
}

.description-card p {
    color: var(--text-primary);
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
    text-align: justify;
}

.consensus-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--success-color);
    color: white;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

/* Colores de consenso según porcentaje */
.consensus-badge.consensus-high {
    background: var(--success-color); /* Verde: >= 50% */
}

.consensus-badge.consensus-medium {
    background: var(--warning-color); /* Naranja: 30-50% */
}

.consensus-badge.consensus-low {
    background: var(--error-color); /* Rojo: < 30% */
}

.no-data {
    text-align: center;
    color: var(--text-secondary);
    padding: var(--spacing-xl);
    font-style: italic;
}

.details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.detail-card {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.detail-card h4 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.detail-card p {
    color: var(--text-primary);
    line-height: 1.5;
    text-align: justify;
}

/* Analysis Section */
.analysis-section {
    margin-bottom: var(--spacing-md);
}

.analysis-section h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.analysis-tabs-container {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.analysis-tabs-nav {
    display: flex;
    border-bottom: 2px solid var(--border-color);
    background: var(--bg-primary);
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.analysis-tab {
    padding: var(--spacing-lg) var(--spacing-xl);
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    font-weight: 500;
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    flex: 1;
    min-width: 150px;
}

.analysis-tab:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.analysis-tab.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    background: var(--bg-secondary);
}

.analysis-tabs-content {
    padding: var(--spacing-xl);
}

.analysis-tab-content {
    display: none;
}

.analysis-tab-content.active {
    display: block;
    animation: fadeIn var(--transition-normal) ease-in-out;
}

.analysis-card {
    background: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--border-color);
}

.analysis-card h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: var(--font-size-sm);
}

.analysis-card p {
    color: var(--text-primary);
    line-height: 1.7;
    text-align: justify;
}

.recommendations-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.recommendation-card {
    display: flex;
    gap: var(--spacing-lg);
    background: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    align-items: flex-start;
}

.recommendation-number {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: var(--font-size-lg);
}

.recommendation-card p {
    flex: 1;
    color: var(--text-primary);
    line-height: 1.7;
    margin: 0;
    text-align: justify;
}

.insights-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.json-data {
    background: var(--bg-dark);
    color: #10b981;
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    overflow-x: auto;
    font-size: var(--font-size-sm);
    line-height: 1.5;
    max-height: 400px;
    overflow-y: auto;
}

/* Sources Section */
.sources-section h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.sources-list {
    display: grid;
    gap: var(--spacing-md);
}

.source-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

.source-item:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-hover);
}

.source-icon {
    width: 24px;
    height: 24px;
    background: var(--primary-color);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-xs);
    font-weight: bold;
    flex-shrink: 0;
}

.source-url {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    flex: 1;
    word-break: break-all;
}

.source-url:hover {
    text-decoration: underline;
}

/* Error Section */
.error-section {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--error-color);
    margin-bottom: var(--spacing-2xl);
    overflow: hidden;
}

.error-container {
    padding: var(--spacing-2xl);
    text-align: center;
}

.error-icon {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-lg);
}

.error-container h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--error-color);
    margin-bottom: var(--spacing-sm);
}

.error-container p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.error-container .btn-primary {
    display: inline-block;
    margin: 0 auto;
}

/* Estilos EPREL */
.eprel-container {
    padding: var(--spacing-lg);
}

.eprel-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--border-color);
}

.eprel-label-image {
    max-width: 200px;
    height: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

.eprel-product-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: all 0.3s ease;
}

.eprel-product-link:hover {
    background: #2563eb;
    transform: translateY(-2px);
}

.eprel-category {
    margin-bottom: var(--spacing-xl);
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary-color);
}

.eprel-category-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.eprel-category-title::before {
    content: '📊';
    font-size: 1.2em;
}

.eprel-fields-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.eprel-field {
    background: white;
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 80px;
}

.eprel-field-label {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    flex-shrink: 0;
}

.eprel-field-value {
    display: block;
    font-size: var(--font-size-md);
    color: var(--text-primary);
    font-weight: 600;
    margin-top: auto;
    padding-top: var(--spacing-xs);
}

.eprel-no-data {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--text-secondary);
}

/* Utility Classes */
.hidden {
    display: none !important;
}

.fade-in {
    animation: fadeIn var(--transition-slow) ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.slide-in {
    animation: slideIn var(--transition-slow) ease-out;
}

@keyframes slideIn {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: var(--spacing-md);
    }
    
    .header-top {
        flex-direction: column;
        position: static;
    }
    
    .logo {
        margin-bottom: var(--spacing-md);
    }
    
    .header-logo {
        height: 40px;
        position: static;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .results-header {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: stretch;
    }
    
    .results-actions {
        justify-content: center;
    }
    
    .details-grid {
        grid-template-columns: 1fr;
    }
    
    .loading-steps {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .carousel {
        height: 250px;
    }
    
    .analysis-tabs {
        flex-wrap: wrap;
    }
    
    .product-tabs {
        flex-direction: column;
    }
    
    .product-tab {
        min-width: 100%;
    }
}

@media (max-width: 480px) {
    .header-content {
        padding: var(--spacing-lg);
    }
    
    .logo {
        font-size: var(--font-size-3xl);
    }
    
    .form-container {
        padding: var(--spacing-lg);
    }
    
    .results-container {
        padding: var(--spacing-lg);
    }
    
    .loading-container {
        padding: var(--spacing-lg);
    }
    
    .loading-steps {
        grid-template-columns: 1fr;
    }
    
    .carousel {
        height: 200px;
    }
    
    .product-tabs-content {
        padding: var(--spacing-md);
    }
}

/* Print Styles */
@media print {
    .header,
    .form-section,
    .loading-section,
    .error-section,
    .results-actions,
    .carousel-controls {
        display: none !important;
    }
    
    .results-section {
        box-shadow: none;
        border: 1px solid #000;
    }
    
    .container {
        max-width: none;
        padding: 0;
    }
}

/* Estilos mejorados para análisis competitivo */
.analysis-card.error {
    border-left: 4px solid #e74c3c;
    background: #fdf2f2;
}

.error-details {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 6px;
    padding: 1rem;
    margin: 1rem 0;
}

.error-details code {
    color: #e74c3c;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9rem;
}

.error-note {
    font-style: italic;
    color: #6c757d;
    margin-top: 1rem;
}

/* Estilos para análisis estructurado */
.structured-analysis {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.analysis-section h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
    border-bottom: 2px solid var(--light-bg);
    padding-bottom: 0.5rem;
}

.analysis-section h5 {
    color: var(--secondary-color);
    margin-bottom: 0.75rem;
    font-size: 1rem;
}

.analysis-data {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 1rem;
}

/* Análisis de precios */
.price-analysis {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.metric {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.metric-label {
    font-weight: 600;
    color: var(--text-color);
    font-size: 0.9rem;
}

.metric-value {
    font-size: 1.1rem;
    font-weight: bold;
    color: var(--primary-color);
}

/* Datos anidados dentro de métricas */
.nested-data {
    margin-left: var(--spacing-md);
    padding-left: var(--spacing-md);
    border-left: 3px solid var(--border-color);
    margin-top: var(--spacing-sm);
}

.nested-data .metric {
    margin-bottom: var(--spacing-sm);
}

.nested-data .metric-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.nested-data .metric-value {
    font-size: 1rem;
}

/* Lista de fuentes de precios dentro del análisis */
.price-analysis .sources-list {
    list-style: none;
    padding: 0;
    margin-top: var(--spacing-sm);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.price-analysis .sources-list li {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
}

/* Posicionamiento condensado en línea */
.posicionamiento-metric {
    display: block !important;
}

.posicionamiento-inline {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xs);
    padding: var(--spacing-sm);
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
}

.pos-item {
    display: inline-block;
    white-space: nowrap;
}

.pos-item strong {
    color: var(--text-secondary);
    font-weight: 600;
}

/* Fuentes de precios en línea horizontal */
.fuentes-precio-metric {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.sources-list-inline {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.sources-list-inline li {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    white-space: nowrap;
}

/* Análisis de características */
.features-analysis {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.feature-list, .gap-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.feature-list li, .gap-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #e9ecef;
}

.gap-item {
    color: #e74c3c;
    font-weight: 500;
}

.coverage-data {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 0.5rem;
}

.coverage-item {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem;
    background: white;
    border-radius: 4px;
    border: 1px solid #e9ecef;
}

.coverage-key {
    font-weight: 500;
}

.coverage-value {
    color: var(--primary-color);
    font-weight: 600;
}

/* Análisis de descripciones */
.descriptions-analysis {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.keywords-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.keyword-tag {
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.tone-analysis, .length-analysis {
    margin: 0;
    padding: 0.75rem;
    background: white;
    border-radius: 6px;
    border-left: 3px solid var(--primary-color);
}

/* Análisis de disponibilidad */
.availability-analysis {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.stock-data, .shipping-data {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.75rem;
}

.stock-item, .shipping-item {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem;
    background: white;
    border-radius: 6px;
    border: 1px solid #e9ecef;
}

.stock-key, .shipping-key {
    font-weight: 500;
}

.stock-value, .shipping-value {
    color: var(--primary-color);
    font-weight: 600;
}

/* Insights estratégicos */
.strategic-insights {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.opportunities-list, .threats-list, .recommendations-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.opportunity-item, .threat-item, .recommendation-item {
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    border-radius: 6px;
    border-left: 4px solid;
}

.opportunity-item {
    background: #f0f9ff;
    border-left-color: #3b82f6;
}

.threat-item {
    background: #fef2f2;
    border-left-color: #ef4444;
}

.recommendation-item {
    background: #f0fdf4;
    border-left-color: #22c55e;
}

/* Objeto genérico */
.generic-object {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.object-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1rem;
    background: white;
    border-radius: 6px;
    border: 1px solid #e9ecef;
}

.object-key {
    font-weight: 600;
    color: var(--primary-color);
}

.object-value {
    color: var(--text-color);
}

.value-list {
    list-style: disc;
    margin-left: 1.5rem;
    margin-top: 0.5rem;
}

.value-list li {
    margin-bottom: 0.25rem;
    color: var(--text-primary);
    line-height: 1.6;
}

.nested-object {
    margin-top: 0.5rem;
    padding-left: 1rem;
    border-left: 2px solid var(--primary-color);
}

.sub-item {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.sub-item strong {
    color: var(--text-primary);
}

.json-data {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 4px;
    padding: 1rem;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.85rem;
    line-height: 1.4;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-word;
}

/* Mensajes de estado */
.error-message {
    padding: 1rem;
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: 6px;
    color: #dc2626;
    margin-bottom: 1rem;
}

.success-message {
    padding: 1rem;
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-radius: 6px;
    color: #16a34a;
}

/* Mejoras para keywords */
.keyword-tag small {
    opacity: 0.7;
    font-weight: normal;
}

/* Cobertura de características */
.coverage-data {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.coverage-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1.25rem;
    background: white;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.coverage-item:hover {
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.coverage-item .coverage-key {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9rem;
    text-transform: capitalize;
    line-height: 1.3;
    word-wrap: break-word;
}

.coverage-item .coverage-value {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
    line-height: 1;
    margin: 0.25rem 0;
}

.coverage-item small.coverage-sources {
    display: block;
    color: #6c757d;
    font-size: 0.8rem;
    line-height: 1.4;
    margin-top: 0.25rem;
    word-wrap: break-word;
}

@media (max-width: 768px) {
    .coverage-data {
        grid-template-columns: 1fr;
    }
}

/* Análisis de tono */
.tone-breakdown {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.tone-breakdown p {
    margin: 0;
    padding: 0.5rem;
    background: white;
    border-radius: 4px;
}

.tone-main {
    background: #f0f9ff !important;
    border-left: 3px solid var(--primary-color) !important;
}

/* Fuentes de descripción */
.sources-breakdown {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.source-item {
    padding: 0.75rem;
    background: white;
    border-radius: 6px;
    border: 1px solid #e9ecef;
}

/* Análisis de disponibilidad */
.source-availability {
    padding: 1rem;
    background: white;
    border-radius: 6px;
    border: 1px solid #e9ecef;
    margin-bottom: 1rem;
}

.source-availability h6 {
    margin: 0 0 0.5rem 0;
    color: var(--primary-color);
    font-size: 1rem;
}

.source-url {
    word-break: break-all;
    color: #6c757d;
    margin: 0 0 0.5rem 0;
}

.source-availability p {
    margin: 0.25rem 0;
}

/* ===================================
   Lightbox Modal Styles
   =================================== */

.lightbox-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn var(--transition-normal);
}

.lightbox-modal.hidden {
    display: none;
}

.lightbox-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(4px);
}

.lightbox-content {
    position: relative;
    z-index: 10000;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-image {
    max-width: 90vw;
    max-height: 90vh;
    object-fit: contain;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    animation: zoomIn 0.3s ease-out;
}

.lightbox-close {
    position: absolute;
    top: -50px;
    right: 0;
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    color: white;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

.lightbox-close svg {
    width: 24px;
    height: 24px;
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 54px;
    height: 54px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    color: white;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    z-index: 10001;
}

.lightbox-nav svg {
    width: 28px;
    height: 28px;
}

.lightbox-nav:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-50%) scale(1.1);
}

.lightbox-nav:active {
    transform: translateY(-50%) scale(0.95);
}

.lightbox-prev {
    left: -70px;
}

.lightbox-next {
    right: -70px;
}

.lightbox-counter {
    position: absolute;
    bottom: -50px;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    font-size: var(--font-size-lg);
    font-weight: 500;
    background: rgba(0, 0, 0, 0.5);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    backdrop-filter: blur(4px);
}

/* Lightbox Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Responsive Lightbox */
@media (max-width: 768px) {
    .lightbox-nav {
        width: 44px;
        height: 44px;
    }
    
    .lightbox-nav svg {
        width: 22px;
        height: 22px;
    }
    
    .lightbox-prev {
        left: 10px;
    }
    
    .lightbox-next {
        right: 10px;
    }
    
    .lightbox-close {
        top: 10px;
        right: 10px;
        width: 40px;
        height: 40px;
    }
    
    .lightbox-close svg {
        width: 20px;
        height: 20px;
    }
    
    .lightbox-counter {
        bottom: 10px;
        font-size: var(--font-size-sm);
    }
}