/* SAE J2945 Standards Page Styles */
/* Namespace: techStandards_sae-j2945 */

/* CSS Variables */
:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --accent-color: #7c3aed;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --white: #ffffff;
    --black: #000000;

    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 0.75rem;
    --spacing-lg: 1rem;
    --spacing-xl: 1.5rem;
    --spacing-2xl: 2rem;
    --spacing-3xl: 3rem;

    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

/* Site Header Styles */
.site-header {
    background: var(--primary-dark);
    color: var(--white);
    padding: var(--spacing-lg) 0;
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    color: var(--white);
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 700;
    transition: color var(--transition-fast);
}

.logo:hover {
    color: var(--primary-light);
}

.logo svg {
    width: 32px;
    height: 32px;
    fill: currentColor;
}

.main-nav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: var(--spacing-lg);
}

.main-nav a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--white);
    text-decoration: none;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    font-weight: 500;
}

.main-nav a:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--primary-light);
}

.main-nav svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

/* Breadcrumb Styles */
.breadcrumb {
    padding: var(--spacing-lg) 0;
    font-size: 0.875rem;
    color: var(--gray-600);
}

.breadcrumb a {
    color: var(--primary-color);
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.breadcrumb-separator {
    margin: 0 var(--spacing-sm);
    color: var(--gray-400);
}

.techStandards_sae-j2945 {
    padding: var(--spacing-3xl) 0;
    background: var(--white);
}

/* Standard Header */
.techStandards_sae-j2945 .standard-header {
    text-align: center;
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--gray-50), var(--gray-100));
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-3xl);
    position: relative;
    overflow: hidden;
}

.techStandards_sae-j2945 .standard-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(37, 99, 235, 0.05) 50%, transparent 70%);
    pointer-events: none;
}

.techStandards_sae-j2945 .standard-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    position: relative;
    z-index: 1;
}

.techStandards_sae-j2945 .standard-icon svg {
    width: 40px;
    height: 40px;
    fill: var(--white);
}

.techStandards_sae-j2945 .standard-header h1 {
    font-size: 3rem;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.techStandards_sae-j2945 .standard-header p {
    font-size: 1.25rem;
    color: var(--gray-600);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

/* Section Titles */
.techStandards_sae-j2945 .section-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 3px solid var(--primary-color);
}

.techStandards_sae-j2945 .section-title i {
    color: var(--primary-color);
    font-size: 1.75rem;
}

/* Standard Overview */
.techStandards_sae-j2945 .standard-overview {
    margin-bottom: var(--spacing-3xl);
    padding: var(--spacing-2xl);
    background: var(--gray-50);
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
}

.techStandards_sae-j2945 .overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.techStandards_sae-j2945 .overview-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    transition: all var(--transition-normal);
}

.techStandards_sae-j2945 .overview-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.techStandards_sae-j2945 .overview-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 20px;
    flex-shrink: 0;
}

.techStandards_sae-j2945 .overview-content h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-xs);
}

.techStandards_sae-j2945 .overview-content p {
    color: var(--gray-600);
    font-size: 0.95rem;
}

/* Technical Specifications */
.techStandards_sae-j2945 .technical-specifications {
    margin-bottom: var(--spacing-3xl);
}

.techStandards_sae-j2945 .spec-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.techStandards_sae-j2945 .spec-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.techStandards_sae-j2945 .spec-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.techStandards_sae-j2945 .spec-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 20px;
    flex-shrink: 0;
}

.techStandards_sae-j2945 .spec-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
}

.techStandards_sae-j2945 .spec-content p:first-of-type {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.techStandards_sae-j2945 .spec-content p:last-of-type {
    color: var(--gray-600);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* Security Features */
.techStandards_sae-j2945 .security-features {
    margin-bottom: var(--spacing-3xl);
}

.techStandards_sae-j2945 .features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-xl);
}

.techStandards_sae-j2945 .feature-item {
    padding: var(--spacing-2xl);
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.techStandards_sae-j2945 .feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

.techStandards_sae-j2945 .feature-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.techStandards_sae-j2945 .feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--success-color), var(--primary-color));
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 24px;
    margin-bottom: var(--spacing-lg);
}

.techStandards_sae-j2945 .feature-item h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
}

.techStandards_sae-j2945 .feature-item > p {
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.techStandards_sae-j2945 .feature-item ul {
    list-style: none;
    padding: 0;
}

.techStandards_sae-j2945 .feature-item li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--gray-700);
    margin-bottom: var(--spacing-sm);
    font-size: 0.95rem;
}

.techStandards_sae-j2945 .feature-item li::before {
    content: '✓';
    color: var(--success-color);
    font-weight: bold;
    font-size: 14px;
    width: 16px;
    flex-shrink: 0;
}

/* Footer Styles */
.site-footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    margin-top: var(--spacing-3xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-section h3 {
    color: var(--white);
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

.footer-section a {
    display: block;
    color: var(--gray-400);
    text-decoration: none;
    margin-bottom: var(--spacing-sm);
    transition: color var(--transition-fast);
}

.footer-section a:hover {
    color: var(--primary-light);
}

.footer-section p {
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-links a {
    width: 40px;
    height: 40px;
    background: var(--gray-800);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

.social-links svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--gray-800);
    color: var(--gray-500);
}

/* FAQ Section */
.faq-section {
    margin-bottom: var(--spacing-3xl);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-xl);
}

.faq-item {
    padding: var(--spacing-2xl);
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.faq-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-color);
}

.faq-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
}

.faq-item p {
    color: var(--gray-600);
    line-height: 1.6;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .techStandards_sae-j2945 .features-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .techStandards_sae-j2945 .standard-header h1 {
        font-size: 2rem;
    }
    
    .techStandards_sae-j2945 .section-title {
        font-size: 1.5rem;
    }
    
    .techStandards_sae-j2945 .overview-grid,
    .techStandards_sae-j2945 .spec-grid {
        grid-template-columns: 1fr;
    }
}