/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette */
    --primary-blue: #1e3a8a;
    --secondary-blue: #3b82f6;
    --light-blue: #dbeafe;
    --dark-blue: #1e40af;
    --medical-blue: #2563eb;
    --accent-red: #dc2626;
    --warning-orange: #f59e0b;
    --success-green: #059669;
    --neutral-gray: #6b7280;
    --light-gray: #f3f4f6;
    --dark-gray: #374151;
    --white: #ffffff;
    --black: #111827;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Layout */
    --container-max-width: 1200px;
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --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);
}

/* Base Typography */
body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--dark-gray);
    background-color: var(--white);
}

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

/* Navigation */
.navbar {
    background: var(--white);
    border-bottom: 1px solid var(--light-gray);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-brand h1 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-blue);
    margin: 0;
}

.nav-subtitle {
    font-size: 0.875rem;
    color: var(--neutral-gray);
    font-weight: 400;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-link {
    text-decoration: none;
    color: var(--dark-gray);
    font-weight: 500;
    transition: color 0.2s ease;
}

.nav-link:hover {
    color: var(--primary-blue);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--light-blue) 0%, var(--white) 100%);
    padding: var(--spacing-2xl) 0;
}

.hero-content {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.hero-label {
    display: inline-block;
    background: var(--primary-blue);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: var(--spacing-md);
}

.hero-title {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--black);
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--neutral-gray);
    margin-bottom: var(--spacing-lg);
    line-height: 1.5;
}

.hero-meta {
    display: flex;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--neutral-gray);
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

/* Summary Section */
.summary-section {
    padding: var(--spacing-2xl) 0;
    background: var(--white);
}

.summary-box {
    background: var(--light-gray);
    border-left: 4px solid var(--primary-blue);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-xl);
}

.summary-box h2 {
    font-family: var(--font-display);
    font-size: 2rem;
    color: var(--black);
    margin-bottom: var(--spacing-lg);
}

.summary-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

.summary-highlight h3,
.summary-recommendations h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-md);
}

.summary-highlight ul {
    list-style: none;
    padding: 0;
}

.summary-highlight li {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-md);
    position: relative;
}

.summary-highlight li::before {
    content: '•';
    color: var(--primary-blue);
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* Comparison Section */
.comparison-section {
    padding: var(--spacing-2xl) 0;
    background: var(--light-blue);
}

.comparison-section h2 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    text-align: center;
    color: var(--black);
    margin-bottom: var(--spacing-lg);
}

.comparison-intro {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.comparison-image {
    max-width: 600px;
    width: 100%;
    height: auto;
    margin: 0 auto var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.comparison-intro p {
    font-size: 1.125rem;
    color: var(--neutral-gray);
    max-width: 800px;
    margin: 0 auto;
}

.table-container {
    overflow-x: auto;
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.comparison-table th {
    background: var(--primary-blue);
    color: var(--white);
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
    border-bottom: 2px solid var(--dark-blue);
}

.comparison-table td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--light-gray);
    vertical-align: top;
}

.provider-row.highly-rated {
    background: rgba(5, 150, 105, 0.05);
}

.provider-row.poorly-rated {
    background: rgba(220, 38, 38, 0.05);
}

.provider-name {
    font-weight: 600;
}

.rating-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
    margin-top: 4px;
}

.rating-badge.excellent {
    background: var(--success-green);
    color: var(--white);
}

.rating-badge.warning {
    background: var(--accent-red);
    color: var(--white);
}

/* Provider Analysis Section */
.providers-section {
    padding: var(--spacing-2xl) 0;
    background: var(--white);
}

.providers-section h2 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    text-align: center;
    color: var(--black);
    margin-bottom: var(--spacing-xl);
}

.provider-category {
    margin-bottom: var(--spacing-2xl);
}

.category-title {
    font-size: 2rem;
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-md);
}

.category-title.warning {
    color: var(--accent-red);
}

.category-description {
    font-size: 1.125rem;
    color: var(--neutral-gray);
    margin-bottom: var(--spacing-xl);
}

.provider-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.provider-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border-left: 4px solid var(--success-green);
}

.provider-card.warning {
    border-left-color: var(--accent-red);
    background: rgba(220, 38, 38, 0.02);
}

.provider-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.provider-header h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--black);
}

.rating {
    font-size: 1rem;
}

.rating.warning {
    color: var(--accent-red);
}

.provider-content p {
    margin-bottom: var(--spacing-sm);
    color: var(--neutral-gray);
}

.provider-highlights h5,
.provider-concerns h5 {
    font-weight: 600;
    color: var(--primary-blue);
    margin: var(--spacing-md) 0 var(--spacing-sm);
}

.provider-concerns h5 {
    color: var(--accent-red);
}

.provider-highlights ul,
.provider-concerns ul {
    list-style: none;
    padding: 0;
}

.provider-highlights li,
.provider-concerns li {
    margin-bottom: var(--spacing-xs);
    padding-left: var(--spacing-md);
    position: relative;
}

.provider-highlights li::before {
    content: '✓';
    color: var(--success-green);
    font-weight: bold;
    position: absolute;
    left: 0;
}

.provider-concerns li::before {
    content: '⚠';
    color: var(--accent-red);
    font-weight: bold;
    position: absolute;
    left: 0;
}

.warning-box {
    background: rgba(220, 38, 38, 0.1);
    border: 1px solid var(--accent-red);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.warning-box p {
    color: var(--accent-red);
    font-weight: 500;
    margin: 0;
}

/* Reviews Section */
.reviews-section {
    padding: var(--spacing-2xl) 0;
    background: var(--light-gray);
}

.reviews-section h2 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    text-align: center;
    color: var(--black);
    margin-bottom: var(--spacing-md);
}

.section-intro {
    text-align: center;
    font-size: 1.125rem;
    color: var(--neutral-gray);
    margin-bottom: var(--spacing-xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.reviews-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

.review-category h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-lg);
}

.review-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border-left: 4px solid var(--success-green);
}

.review-card.negative {
    border-left-color: var(--accent-red);
    background: rgba(220, 38, 38, 0.02);
}

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.review-header h4 {
    font-weight: 600;
    color: var(--black);
}

.review-rating.warning {
    color: var(--accent-red);
}

.review-text {
    font-style: italic;
    color: var(--dark-gray);
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-md);
    border-left: 2px solid var(--light-gray);
}

.review-meta {
    font-size: 0.875rem;
    color: var(--neutral-gray);
    display: flex;
    gap: var(--spacing-xs);
}

/* FAQ Section */
.faq-section {
    padding: var(--spacing-2xl) 0;
    background: var(--white);
}

.faq-section h2 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    text-align: center;
    color: var(--black);
    margin-bottom: var(--spacing-lg);
}

.faq-intro {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.faq-image {
    max-width: 400px;
    width: 100%;
    height: auto;
    margin: 0 auto var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--light-gray);
    margin-bottom: var(--spacing-md);
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    padding: var(--spacing-lg) 0;
    text-align: left;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--black);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: color 0.2s ease;
}

.faq-question:hover {
    color: var(--primary-blue);
}

.faq-icon {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--primary-blue);
    transition: transform 0.2s ease;
}

.faq-question[aria-expanded="true"] .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    padding-bottom: var(--spacing-lg);
    color: var(--neutral-gray);
    line-height: 1.6;
    display: none;
}

.faq-answer.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

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

/* Footer */
.footer {
    background: var(--dark-gray);
    color: var(--white);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

.footer-main h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--white);
}

.footer-disclaimer h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--warning-orange);
}

.footer-disclaimer p {
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
    color: #d1d5db;
}

.footer-meta {
    border-top: 1px solid #4b5563;
    padding-top: var(--spacing-lg);
    text-align: center;
    color: #9ca3af;
}

.footer-meta p {
    margin-bottom: var(--spacing-xs);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        height: auto;
        padding: var(--spacing-md);
    }
    
    .nav-menu {
        margin-top: var(--spacing-md);
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--spacing-md);
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .summary-content {
        grid-template-columns: 1fr;
    }
    
    .table-container {
        font-size: 0.75rem;
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: var(--spacing-xs);
    }
    
    .provider-cards {
        grid-template-columns: 1fr;
    }
    
    .reviews-grid {
        grid-template-columns: 1fr;
    }
    
    .faq-question {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero {
        padding: var(--spacing-lg) 0;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .summary-box {
        padding: var(--spacing-lg);
    }
    
    .provider-card {
        padding: var(--spacing-md);
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Focus styles for accessibility */
.nav-link:focus,
.faq-question:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .navbar,
    .hero-image,
    .faq-image,
    .comparison-image {
        display: none;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
    }
    
    .summary-content,
    .reviews-grid {
        grid-template-columns: 1fr;
    }
}



/* Performance Optimizations */
.lazy {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lazy.loaded {
    opacity: 1;
}

/* Table scroll indicators */
.table-container.scrolled-left::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 20px;
    background: linear-gradient(to right, rgba(0,0,0,0.1), transparent);
    pointer-events: none;
    z-index: 1;
}

.table-container.scrollable-right::after {
    content: '';
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: 20px;
    background: linear-gradient(to left, rgba(0,0,0,0.1), transparent);
    pointer-events: none;
    z-index: 1;
}

/* Enhanced navigation active state */
.nav-link.active {
    color: var(--primary-blue);
    font-weight: 600;
    position: relative;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-blue);
    border-radius: 1px;
}

/* Loading states */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* Enhanced button styles */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--primary-blue);
    color: var(--white);
    text-decoration: none;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: all 0.2s ease;
    border: none;
    cursor: pointer;
}

.btn:hover {
    background: var(--dark-blue);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--neutral-gray);
}

.btn-secondary:hover {
    background: var(--dark-gray);
}

/* Enhanced accessibility */
.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;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --primary-blue: #000080;
        --secondary-blue: #0000ff;
        --neutral-gray: #000000;
        --dark-gray: #000000;
    }
    
    .provider-card,
    .review-card,
    .summary-box {
        border: 2px solid var(--black);
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Dark mode support (future enhancement) */
@media (prefers-color-scheme: dark) {
    :root {
        --white: #1a1a1a;
        --black: #ffffff;
        --light-gray: #2a2a2a;
        --dark-gray: #e5e5e5;
        --neutral-gray: #b0b0b0;
    }
    
    .hero {
        background: linear-gradient(135deg, #2a2a2a 0%, #1a1a1a 100%);
    }
    
    .comparison-section {
        background: #2a2a2a;
    }
    
    .reviews-section {
        background: #2a2a2a;
    }
}

/* Print optimizations */
@media print {
    .print-button,
    .nav-menu,
    .hero-image img,
    .comparison-image,
    .faq-image {
        display: none !important;
    }
    
    .hero-content {
        grid-template-columns: 1fr !important;
    }
    
    .comparison-table {
        font-size: 10px !important;
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: 4px !important;
    }
    
    .provider-card,
    .review-card {
        break-inside: avoid;
        margin-bottom: var(--spacing-md) !important;
    }
    
    .faq-answer {
        display: block !important;
    }
    
    .faq-icon {
        display: none !important;
    }
    
    body {
        font-size: 12px !important;
        line-height: 1.4 !important;
    }
    
    h1 { font-size: 18px !important; }
    h2 { font-size: 16px !important; }
    h3 { font-size: 14px !important; }
    h4 { font-size: 13px !important; }
}