/* CSS Variables for Consistent Theming */
:root {
    /* Primary Colors */
    --color-primary: #2563eb;
    --color-primary-dark: #1e40af;
    --color-primary-light: #3b82f6;

    /* Secondary Colors */
    --color-secondary: #64748b;
    --color-secondary-dark: #475569;
    --color-secondary-light: #94a3b8;

    /* Neutral Colors */
    --color-white: #ffffff;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;

    /* Accent Colors */
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-info: #3b82f6;
    --color-danger: #ef4444;

    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-serif: Georgia, Cambria, "Times New Roman", Times, serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Container */
    --container-max-width: 1200px;
}

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

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-gray-800);
    background-color: var(--color-gray-50);
}

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

/* Header Styles */
.header {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    color: var(--color-white);
    padding: var(--spacing-xl) 0;
    box-shadow: var(--shadow-md);
}

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

.logo h1 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.tagline {
    font-size: 0.95rem;
    opacity: 0.9;
    font-weight: 400;
}

/* Navigation */
.nav ul {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav a {
    color: var(--color-white);
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.2s;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
}

.nav a:hover {
    opacity: 0.8;
    background-color: rgba(255, 255, 255, 0.1);
}

/* Featured Section */
.featured-section {
    background: var(--color-white);
    padding: var(--spacing-2xl) 0;
    box-shadow: var(--shadow-md);
}

.featured-article {
    position: relative;
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border-radius: var(--radius-xl);
    border-left: 4px solid var(--color-primary);
}

.featured-badge {
    display: inline-block;
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.featured-article h2 {
    font-size: 1.875rem;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-gray-200);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--color-gray-600);
}

.meta-label {
    font-weight: 600;
    color: var(--color-gray-700);
}

.featured-excerpt {
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-lg);
}

/* Star Ratings */
.stars {
    color: #fbbf24;
    font-size: 1rem;
    letter-spacing: 2px;
}

.rating-text {
    font-weight: 600;
    color: var(--color-gray-700);
    margin-left: var(--spacing-xs);
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--color-secondary);
    color: var(--color-white);
}

.btn-secondary:hover {
    background: var(--color-secondary-dark);
    transform: translateY(-2px);
}

/* Section Styles */
.reviews-section,
.categories-section,
.top-rated-section,
.info-boxes-section {
    padding: var(--spacing-3xl) 0;
}

.section-title {
    font-size: 2rem;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-xl);
    text-align: center;
    font-weight: 700;
}

/* Reviews Grid */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

/* Card Styles */
.review-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: all 0.3s;
    position: relative;
    border: 1px solid var(--color-gray-200);
}

.review-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.card-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

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

.review-card h3 {
    font-size: 1.25rem;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-md);
    line-height: 1.4;
}

.review-card .article-meta {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
}

.rating {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.card-excerpt {
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

/* Categories Grid */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.category-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: all 0.3s;
    text-align: center;
    border: 1px solid var(--color-gray-200);
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
}

.category-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.category-card h3 {
    font-size: 1.25rem;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-md);
}

.category-card p {
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.category-link {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s;
}

.category-link:hover {
    color: var(--color-primary-dark);
}

/* Top Rated Section */
.top-rated-section {
    background: var(--color-white);
}

.top-rated-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.top-rated-item {
    display: flex;
    gap: var(--spacing-lg);
    background: var(--color-gray-50);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    border: 2px solid var(--color-gray-200);
    transition: all 0.3s;
}

.top-rated-item:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
}

.rank-badge {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    box-shadow: var(--shadow-md);
}

.rank-1 .rank-badge {
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
}

.rank-2 .rank-badge {
    background: linear-gradient(135deg, #94a3b8 0%, #64748b 100%);
}

.rank-3 .rank-badge {
    background: linear-gradient(135deg, #fb923c 0%, #ea580c 100%);
}

.top-rated-content {
    flex: 1;
}

.top-rated-content h3 {
    font-size: 1.5rem;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-sm);
}

.review-count {
    color: var(--color-gray-600);
    font-size: 0.875rem;
    margin-left: var(--spacing-xs);
}

.top-rated-description {
    color: var(--color-gray-700);
    line-height: 1.7;
    margin: var(--spacing-md) 0;
}

.top-rated-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin: var(--spacing-md) 0;
}

.feature-badge {
    background: var(--color-primary-light);
    color: var(--color-white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
}

.service-area {
    color: var(--color-gray-600);
    font-size: 0.9375rem;
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-gray-200);
}

/* Comparison Table */
.comparison-section {
    margin-top: var(--spacing-2xl);
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.comparison-section h3 {
    font-size: 1.5rem;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-lg);
}

.table-wrapper {
    overflow-x: auto;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-white);
}

.comparison-table thead {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    color: var(--color-white);
}

.comparison-table th,
.comparison-table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--color-gray-200);
}

.comparison-table th {
    font-weight: 600;
}

.comparison-table tbody tr:hover {
    background: var(--color-gray-50);
}

.comparison-table tbody tr:last-child td {
    border-bottom: none;
}

/* Info Boxes */
.info-box {
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
    border-left: 4px solid;
    box-shadow: var(--shadow-md);
}

.info-box h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.info-box p {
    line-height: 1.7;
    color: var(--color-gray-700);
}

.info-box.success {
    background: #f0fdf4;
    border-color: var(--color-success);
}

.info-box.success h3 {
    color: #166534;
}

.info-box.warning {
    background: #fffbeb;
    border-color: var(--color-warning);
}

.info-box.warning h3 {
    color: #92400e;
}

.info-box.info {
    background: #eff6ff;
    border-color: var(--color-info);
}

.info-box.info h3 {
    color: #1e40af;
}

/* Footer */
.footer {
    background: var(--color-gray-900);
    color: var(--color-gray-300);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-3xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h4 {
    color: var(--color-white);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

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

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-section a {
    color: var(--color-gray-300);
    text-decoration: none;
    transition: color 0.2s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-gray-700);
}

.footer-bottom p {
    font-size: 0.875rem;
}

.footer-bottom a {
    color: var(--color-gray-300);
    text-decoration: none;
}

.footer-bottom a:hover {
    color: var(--color-white);
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        text-align: center;
    }

    .nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }

    .featured-article h2 {
        font-size: 1.5rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .reviews-grid {
        grid-template-columns: 1fr;
    }

    .categories-grid {
        grid-template-columns: 1fr;
    }

    .top-rated-item {
        flex-direction: column;
        text-align: center;
    }

    .rank-badge {
        margin: 0 auto;
    }

    .top-rated-features {
        justify-content: center;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .logo h1 {
        font-size: 1.5rem;
    }

    .tagline {
        font-size: 0.875rem;
    }

    .featured-article {
        padding: var(--spacing-lg);
    }

    .featured-article h2 {
        font-size: 1.25rem;
    }

    .btn {
        width: 100%;
        text-align: center;
    }
}