:root {
            --tr7nn-primary: #4285F4;
            --tr7nn-secondary: #EA4335;
            --tr7nn-tertiary: #FBBC04;
            --tr7nn-quaternary: #34A853;
            --tr7nn-text: #202124;
            --tr7nn-text-light: #5f6368;
            --tr7nn-bg: #ffffff;
            --tr7nn-bg-alt: #f8f9fa;
            --tr7nn-gap: 8px;
            --tr7nn-radius: 16px;
            --tr7nn-container: 1320px;
        }

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

        body {
            font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            color: var(--tr7nn-text);
            background-color: var(--tr7nn-bg);
            line-height: 1.6;
            overflow-x: hidden;
            word-break: break-word;
            overflow-wrap: break-word;
        }

        /* Layout Helpers */
        .tr7nn-flex {
            display: flex;
            flex-wrap: wrap;
        }

        .tr7nn-container {
            max-width: var(--tr7nn-container);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* Navigation */
        .tr7nn-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
        }

        .tr7nn-navbar {
            height: 72px;
            justify-content: space-between;
            align-items: center;
        }

        .tr7nn-logo {
            min-width: 0;
            display: flex;
            align-items: center;
        }

        .tr7nn-logo img {
            height: 32px;
            width: auto;
        }

        .tr7nn-nav-menu {
            min-width: 0;
            list-style: none;
            align-items: center;
            gap: 16px;
        }

        .tr7nn-nav-link {
            text-decoration: none;
            color: var(--tr7nn-text-light);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 8px;
            transition: all 0.2s ease;
            white-space: normal;
        }

        .tr7nn-nav-link:hover {
            color: var(--tr7nn-primary);
            background: rgba(66, 133, 244, 0.05);
        }

        .tr7nn-nav-link.tr7nn-active {
            color: var(--tr7nn-primary);
            background: rgba(66, 133, 244, 0.1);
        }

        /* Hero Section - Unique Diagonal Split */
        .tr7nn-hero {
            padding-top: 140px;
            padding-bottom: 80px;
            background: linear-gradient(135deg, #f1f3f4 0%, #ffffff 100%);
            position: relative;
            overflow: hidden;
        }

        .tr7nn-hero::after {
            content: '';
            position: absolute;
            bottom: -50px;
            right: -50px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(66, 133, 244, 0.1) 0%, transparent 70%);
            z-index: 0;
        }

        .tr7nn-hero-content {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 900px;
            margin: 0 auto;
        }

        .tr7nn-hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: var(--tr7nn-quaternary);
            color: white;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: bold;
            margin-bottom: 24px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .tr7nn-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
            line-height: 1.1;
            font-weight: 800;
            margin-bottom: 24px;
            color: var(--tr7nn-text);
            word-break: keep-all;
        }

        .tr7nn-hero-subtitle {
            font-size: clamp(1.1rem, 2vw + 0.5rem, 1.4rem);
            color: var(--tr7nn-text-light);
            margin-bottom: 40px;
            line-height: 1.6;
        }

        /* Security Matrix Section - Grid Layout */
        .tr7nn-section {
            padding: 96px 0;
        }

        .tr7nn-section-header {
            margin-bottom: 64px;
            max-width: 700px;
        }

        .tr7nn-section-title {
            font-size: clamp(2rem, 3vw + 0.5rem, 2.8rem);
            margin-bottom: 16px;
            font-weight: 700;
        }

        .tr7nn-matrix-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 32px;
        }

        .tr7nn-matrix-card {
            background: var(--tr7nn-bg);
            padding: 40px;
            border-radius: var(--tr7nn-radius);
            border: 1px solid rgba(0, 0, 0, 0.05);
            transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
            min-width: 0;
            display: flex;
            flex-direction: column;
        }

        .tr7nn-matrix-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
            border-color: var(--tr7nn-primary);
        }

        .tr7nn-protocol-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--tr7nn-bg-alt);
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
        }

        .tr7nn-protocol-name {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--tr7nn-primary);
        }

        .tr7nn-protocol-desc {
            font-size: 1rem;
            color: var(--tr7nn-text-light);
            margin-bottom: 20px;
            flex-grow: 1;
        }

        .tr7nn-protocol-status {
            font-size: 0.85rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 4px;
            background: #e8f0fe;
            color: var(--tr7nn-primary);
            align-self: flex-start;
        }

        /* Features Section - Interactive Tabs Look */
        .tr7nn-bg-dark {
            background-color: var(--tr7nn-bg-alt);
        }

        .tr7nn-feature-row {
            align-items: center;
            gap: 64px;
        }

        .tr7nn-feature-content {
            flex: 1;
            min-width: 320px;
        }

        .tr7nn-feature-visual {
            flex: 1;
            min-width: 320px;
            background: white;
            padding: 40px;
            border-radius: 24px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
            border: 8px solid #f1f3f4;
        }

        .tr7nn-code-block {
            font-family: 'Courier New', monospace;
            background: #202124;
            color: #fff;
            padding: 24px;
            border-radius: 12px;
            font-size: 0.9rem;
            line-height: 1.5;
            overflow-x: auto;
        }

        .tr7nn-code-keyword { color: #8ab4f8; }
        .tr7nn-code-string { color: #ce9178; }

        /* Dynamic Content Section */
        .tr7nn-dynamic-section {
            background: var(--tr7nn-bg);
        }

        .tr7nn-article-card {
            background: var(--tr7nn-bg-alt);
            border-radius: var(--tr7nn-radius);
            padding: 32px;
            margin-bottom: 24px;
            border-left: 4px solid var(--tr7nn-tertiary);
        }

        /* Footer */
        .tr7nn-footer {
            background: #202124;
            color: #ffffff;
            padding: 80px 0 40px;
        }

        .tr7nn-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
            margin-bottom: 64px;
        }

        .tr7nn-footer-brand h2 {
            font-size: 1.5rem;
            margin-bottom: 16px;
            color: #ffffff;
        }

        .tr7nn-footer-text {
            color: #9aa0a6;
            font-size: 0.9rem;
            max-width: 300px;
        }

        .tr7nn-footer-links h4 {
            margin-bottom: 24px;
            font-size: 1rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: #ffffff;
        }

        .tr7nn-footer-links ul {
            list-style: none;
        }

        .tr7nn-footer-links li {
            margin-bottom: 12px;
        }

        .tr7nn-footer-links a {
            color: #9aa0a6;
            text-decoration: none;
            transition: color 0.2s;
        }

        .tr7nn-footer-links a:hover {
            color: #ffffff;
        }

        .tr7nn-footer-bottom {
            padding-top: 40px;
            border-top: 1px solid #3c4043;
            text-align: center;
            color: #9aa0a6;
            font-size: 0.85rem;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .tr7nn-nav-menu {
                display: none; /* Simplification for mobile */
            }
            .tr7nn-hero {
                padding-top: 100px;
                text-align: center;
            }
            .tr7nn-feature-row {
                flex-direction: column;
            }
            .tr7nn-matrix-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (min-width: 769px) {
            .tr7nn-nav-toggle {
                display: none;
            }
        }