:root {
    /* Premium Color Palette */
    --primary-color: #0f172a;
    /* Deep Navy - Authority */
    --secondary-color: #3b82f6;
    /* Tech Blue - Trust */
    --accent-color: #10b981;
    /* Conversion Green */
    --text-color: #334155;
    /* Slate - Readability */
    --bg-color: #f8fafc;
    /* Light Gray - Clean */
    --white: #ffffff;
    --border-color: #e2e8f0;

    /* Typography */
    --font-heading: 'Inter', system-ui, -apple-system, sans-serif;
    --font-body: 'Inter', system-ui, -apple-system, sans-serif;

    /* Spacing */
    --container-width: 1200px;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 4rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);

    /* Transitions */
    --transition: all 0.3s ease;
}

/* Reset & Base */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-body);
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-color);
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: var(--primary-color);
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: 2.5rem;
    font-weight: 800;
}

h2 {
    font-size: 2rem;
    font-weight: 700;
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
}

p {
    margin-bottom: var(--spacing-md);
}

/* Layout */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-xl) 0;
}

/* Components */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

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

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

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

.btn-cta:hover {
    filter: brightness(1.1);
}

/* Header */
.site-header {
    background-color: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--primary-color);
}

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

.main-nav a {
    color: var(--text-color);
    font-weight: 500;
}

.main-nav a:hover {
    color: var(--secondary-color);
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Utilities */
.text-center {
    text-align: center;
}

.mb-1 {
    margin-bottom: var(--spacing-sm);
}

.mb-2 {
    margin-bottom: var(--spacing-md);
}

.mb-4 {
    margin-bottom: var(--spacing-lg);
}

/* Comparison Table */
.comparison-table-wrapper {
    overflow-x: auto;
    background: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-lg);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 800px;
}

.comparison-table th {
    background-color: var(--primary-color);
    color: var(--white);
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
}

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

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

.provider-cell {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
}

.rating-stars {
    color: #fbbf24;
    /* Gold */
}

/* Badge */
.badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.badge-green {
    background-color: #d1fae5;
    color: #065f46;
}

/* Success */
.badge-blue {
    background-color: #dbeafe;
    color: #1e40af;
}

/* Info */

/* Footer */
.site-footer {
    background-color: var(--primary-color);
    color: var(--white);
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-col h4 {
    color: var(--white);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
}

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

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

.footer-col a {
    color: #94a3b8;
}

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

.footer-bottom {
    border-top: 1px solid #334155;
    padding-top: var(--spacing-md);
    text-align: center;
    color: #94a3b8;
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .header-inner {
        position: relative;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        box-shadow: var(--shadow-md);
        padding: var(--spacing-md);
    }

    .main-nav.active {
        display: block;
    }

    .main-nav ul {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    h1 {
        font-size: 2rem;
    }
}

/* Featured Provider Card */
.featured-provider {
    margin-bottom: var(--spacing-xl);
}

.featured-card {
    background-color: var(--white);
    border-radius: 16px;
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    /* shadow-xl */
    padding: var(--spacing-lg);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.featured-card:hover {
    box-shadow: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    /* shadow-2xl */
}

.featured-badge {
    display: inline-block;
    background-color: #facc15;
    /* yellow-400 */
    color: #000;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    margin-bottom: var(--spacing-md);
}

.featured-header {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.featured-logo {
    width: 64px;
    height: 64px;
    object-fit: contain;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 8px;
    background: var(--white);
}

.featured-title h3 {
    margin-bottom: 0.25rem;
    color: #1e293b;
    /* slate-800 */
    font-size: 1.5rem;
}

.featured-subtitle {
    font-size: 0.875rem;
    color: #64748b;
    /* slate-500 */
    margin-bottom: 0.25rem;
}

.featured-rating {
    color: #eab308;
    /* yellow-500 */
    font-size: 0.875rem;
    font-weight: 600;
}

.featured-uptime {
    color: #16a34a;
    /* green-600 */
    font-size: 0.75rem;
    font-weight: 600;
}

.featured-desc {
    font-size: 0.875rem;
    color: #475569;
    /* slate-600 */
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.featured-specs {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    margin-bottom: var(--spacing-lg);
    font-size: 0.75rem;
    color: #334155;
    font-weight: 500;
}

.featured-pricing {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.pricing-plan {
    background-color: #f8fafc;
    /* slate-50 */
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: var(--spacing-md);
}

.pricing-plan.popular {
    background-color: #eff6ff;
    /* blue-50 */
    border-color: #2563eb;
    /* blue-600 */
    border-width: 2px;
    position: relative;
}

.plan-name {
    display: block;
    font-size: 0.875rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.plan-specs {
    font-size: 0.75rem;
    color: #64748b;
    margin: 0;
}

.plan-price {
    font-size: 1rem;
    font-weight: 800;
    color: #16a34a;
    margin-top: 8px;
}

.featured-pros {
    margin-bottom: var(--spacing-lg);
    font-size: 0.75rem;
    color: #475569;
}

.featured-pros p {
    margin-bottom: 4px;
}

.featured-cta-btn {
    display: block;
    width: 100%;
    background-color: #2563eb;
    /* blue-600 */
    color: var(--white);
    padding: 1rem;
    text-align: center;
    border-radius: 12px;
    font-weight: 700;
    transition: var(--transition);
}

.featured-cta-btn:hover {
    background-color: #1d4ed8;
    /* blue-700 */
}

@media (max-width: 640px) {
    .featured-specs {
        grid-template-columns: 1fr;
    }

    .featured-pricing {
        grid-template-columns: 1fr;
    }
}