:root {
            --r50ey1-primary: #4285F4;
            --r50ey1-success: #34A853;
            --r50ey1-warning: #FBBC04;
            --r50ey1-danger: #EA4335;
            --r50ey1-text: #202124;
            --r50ey1-text-light: #5F6368;
            --r50ey1-bg: #FFFFFF;
            --r50ey1-bg-alt: #F8F9FA;
            --r50ey1-accent: #FBBC04;
            --r50ey1-max-width: 1300px;
            --r50ey1-radius: 16px;
            --r50ey1-shadow: 0 4px 6px rgba(32, 33, 36, 0.1);
        }

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

        body {
            font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
            color: var(--r50ey1-text);
            background-color: var(--r50ey1-bg);
            line-height: 1.7;
            overflow-x: hidden;
            word-break: break-word;
        }

        /* Typography */
        h1, h2, h3 {
            line-height: 1.2;
            word-break: keep-all;
            white-space: normal;
        }

        .r50ey1-title-main {
            font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
            font-weight: 800;
            margin-bottom: 24px;
            letter-spacing: -0.02em;
        }

        .r50ey1-text-body {
            font-size: clamp(1rem, 1vw + 0.5rem, 1.25rem);
            color: var(--r50ey1-text-light);
            max-width: 800px;
        }

        /* Layout Utilities */
        .r50ey1-container {
            max-width: var(--r50ey1-max-width);
            margin: 0 auto;
            padding: 0 32px;
        }

        .r50ey1-flex {
            display: flex;
            flex-wrap: wrap;
        }

        .r50ey1-flex-item {
            min-width: 0;
            flex: 1;
        }

        /* Navigation */
        .r50ey1-nav-wrapper {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            padding: 12px 0;
        }

        .r50ey1-nav-content {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }

        .r50ey1-logo {
            display: flex;
            align-items: center;
            margin-right: 48px;
        }

        .r50ey1-logo img {
            height: 36px;
            width: auto;
        }

        .r50ey1-menu {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 8px;
        }

        .r50ey1-menu-link {
            text-decoration: none;
            color: var(--r50ey1-text-light);
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 500;
            transition: all 0.3s ease;
        }

        .r50ey1-menu-link:hover {
            background-color: var(--r50ey1-bg-alt);
            color: var(--r50ey1-primary);
        }

        .r50ey1-menu-link.active {
            background-color: var(--r50ey1-primary);
            color: #fff;
        }

        /* Hero Section - Unique Diagonal Split */
        .r50ey1-hero {
            padding: 160px 0 96px;
            background: radial-gradient(circle at 90% 10%, #fff7e6 0%, #ffffff 50%);
            position: relative;
            overflow: hidden;
        }

        .r50ey1-hero::after {
            content: '';
            position: absolute;
            bottom: -50px;
            right: -50px;
            width: 400px;
            height: 400px;
            background: var(--r50ey1-warning);
            opacity: 0.05;
            border-radius: 50%;
            z-index: 0;
        }

        .r50ey1-hero-inner {
            position: relative;
            z-index: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }

        /* Tab Group Visualization Component */
        .r50ey1-tab-viz {
            margin-top: 64px;
            width: 100%;
            max-width: 1000px;
            background: #fff;
            border-radius: var(--r50ey1-radius);
            box-shadow: 0 20px 50px rgba(0,0,0,0.1);
            padding: 16px;
            border: 1px solid rgba(0,0,0,0.05);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .r50ey1-browser-top {
            display: flex;
            gap: 8px;
            padding-bottom: 8px;
            border-bottom: 1px solid #f1f3f4;
            overflow-x: auto;
        }

        .r50ey1-tab-mock {
            padding: 8px 20px;
            background: #f1f3f4;
            border-radius: 8px 8px 0 0;
            font-size: 13px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            min-width: 120px;
        }

        .r50ey1-tab-group-tag {
            height: 12px;
            width: 12px;
            border-radius: 50%;
        }

        /* Feature Section */
        .r50ey1-section {
            padding: 96px 0;
        }

        .r50ey1-section-alt {
            background-color: var(--r50ey1-bg-alt);
        }

        .r50ey1-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
            margin-top: 48px;
        }

        .r50ey1-card {
            background: #fff;
            padding: 40px;
            border-radius: var(--r50ey1-radius);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: 1px solid transparent;
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .r50ey1-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 24px rgba(0,0,0,0.08);
            border-color: var(--r50ey1-warning);
        }

        .r50ey1-card-icon {
            font-size: 32px;
            margin-bottom: 24px;
            width: 64px;
            height: 64px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: var(--r50ey1-bg-alt);
        }

        /* Architecture Logic Stack */
        .r50ey1-logic-container {
            background: #202124;
            color: #fff;
            padding: 80px 0;
            border-radius: 40px;
            margin: 48px 0;
        }

        .r50ey1-logic-item {
            padding: 32px;
            border-left: 4px solid var(--r50ey1-primary);
            margin-bottom: 24px;
            background: rgba(255,255,255,0.03);
            border-radius: 0 16px 16px 0;
        }

        .r50ey1-logic-item:nth-child(2) { border-color: var(--r50ey1-success); }
        .r50ey1-logic-item:nth-child(3) { border-color: var(--r50ey1-warning); }

        /* Timeline for Future Vision */
        .r50ey1-timeline {
            margin-top: 64px;
            position: relative;
        }

        .r50ey1-timeline-item {
            display: flex;
            margin-bottom: 48px;
            gap: 32px;
        }

        .r50ey1-period-badge {
            background: var(--r50ey1-text);
            color: #fff;
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 14px;
            height: fit-content;
            white-space: nowrap;
        }

        /* Footer */
        .r50ey1-footer {
            padding: 80px 0 40px;
            background: #f8f9fa;
            border-top: 1px solid #eee;
        }

        .r50ey1-footer-brand {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 24px;
            color: var(--r50ey1-text);
        }

        .r50ey1-cta-btn {
            display: inline-block;
            background: var(--r50ey1-primary);
            color: #fff;
            padding: 16px 40px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 600;
            margin-top: 32px;
            transition: all 0.3s ease;
            box-shadow: 0 4px 14px rgba(66, 133, 244, 0.3);
        }

        .r50ey1-cta-btn:hover {
            transform: scale(1.05);
            box-shadow: 0 6px 20px rgba(66, 133, 244, 0.4);
        }

        /* Responsive */
        @media (max-width: 768px) {
            .r50ey1-menu {
                display: none; /* In a real scenario, implement a hamburger menu */
            }
            .r50ey1-container {
                padding: 0 20px;
            }
            .r50ey1-hero {
                padding: 120px 0 64px;
            }
            .r50ey1-grid {
                grid-template-columns: 1fr;
            }
            .r50ey1-timeline-item {
                flex-direction: column;
                gap: 12px;
            }
        }