:root {
    /* Color Palette - 2I-Labs Dark Mode */
    --bg-color: #0f1115;
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-border: rgba(255, 255, 255, 0.08);
    --text-main: #e2e8f0;
    --text-muted: #94a3b8;

    /* 2I-Labs Brand Colors */
    --accent-1: #06B6D4;
    /* Accent Cyan */
    --accent-2: #1E40AF;
    /* Primary Blue */
    --accent-3: #10B981;
    /* Accent Emerald */
    --accent-gradient: linear-gradient(135deg, var(--accent-1), var(--accent-2));

    /* Typography */
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing & Radii */
    --border-radius: 16px;
    --transition: 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    -webkit-font-smoothing: antialiased;
}

/* Background Effects */
.bg-glow {
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 50% 50%, rgba(30, 64, 175, 0.08), transparent 60%);
    z-index: -1;
    pointer-events: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

header {
    text-align: center;
    margin-bottom: 4rem;
    padding-top: 4rem;
}

.badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(0, 240, 255, 0.1);
    color: var(--accent-1);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(0, 240, 255, 0.2);
}

h1 {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

h2 {
    font-family: var(--font-heading);
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: white;
}

h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: #f8fafc;
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 800px;
    margin: 0 auto;
}

/* Tabs Navigation */
.tabs-nav {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.tab-btn {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-muted);
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.tab-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -10px rgba(0, 0, 0, 0.5);
}

.tab-btn.active {
    background: rgba(139, 92, 246, 0.15);
    border-color: rgba(139, 92, 246, 0.4);
    color: white;
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.2);
}

/* Tab Content Areas */
.tab-pane {
    display: none;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.tab-pane.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

/* Content Cards */
.card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: 2.5rem;
    margin-bottom: 2rem;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.card p {
    margin-bottom: 1.5rem;
}

.card p:last-child {
    margin-bottom: 0;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

/* Highlight boxes */
.highlight-box {
    background: rgba(0, 240, 255, 0.05);
    border-left: 4px solid var(--accent-1);
    padding: 1.5rem;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    margin: 2rem 0;
}

/* Table Design */
.table-wrapper {
    overflow-x: auto;
    margin: 2rem 0;
    border-radius: var(--border-radius);
    border: 1px solid var(--card-border);
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
}

th,
td {
    padding: 1.5rem;
    text-align: left;
    border-bottom: 1px solid var(--card-border);
}

th {
    background: rgba(255, 255, 255, 0.02);
    font-family: var(--font-heading);
    color: white;
    font-weight: 600;
}

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

/* SEO Footer */
footer {
    margin-top: 6rem;
    padding: 4rem 0;
    border-top: 1px solid var(--card-border);
    text-align: center;
    color: var(--text-muted);
}

.seo-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.seo-links a {
    color: var(--accent-1);
    text-decoration: none;
    font-size: 0.875rem;
    transition: var(--transition);
}

.seo-links a:hover {
    color: white;
    text-decoration: underline;
}

@media (max-width: 768px) {
    .grid-2 {
        grid-template-columns: 1fr;
    }

    .tabs-nav {
        flex-direction: column;
    }

    .tab-btn {
        width: 100%;
    }
}