:root {
            --warm-gold: #f4d03f;
            --soft-amber: #f5b041;
            --consciousness-blue: #5dade2;
            --liberation-purple: #af7ac5;
            --friendship-rose: #f1948a;
            --trust-green: #58d68d;
            --deep-night: #0a0a12;
            --gentle-dark: #12121a;
        }

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

        body {
            font-family: 'Inter', sans-serif;
            background: var(--deep-night);
            color: #e8e8f0;
            line-height: 1.7;
        }

        /* Navigation */
        .nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 10, 18, 0.9);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(241, 148, 138, 0.2);
        }

        .nav-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 15px 40px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .nav-logo {
            display: flex;
            align-items: baseline;
            gap: 8px;
            text-decoration: none;
        }

        .nav-logo h1 {
            font-size: 1.4rem;
            font-weight: 700;
            background: linear-gradient(135deg, var(--friendship-rose), var(--warm-gold));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .nav-logo span {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
        }

        .nav-menu {
            display: flex;
            gap: 35px;
            align-items: center;
        }

        .nav-link {
            text-decoration: none;
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all 0.3s ease;
        }

        .nav-link:hover, .nav-link.active {
            color: var(--friendship-rose);
        }

        .nav-link.featured {
            color: var(--trust-green);
        }

        .site-ribbon {
            margin-top: 68px;
            padding: 12px 20px;
            text-align: center;
            background: linear-gradient(90deg, rgba(244, 208, 63, 0.12), rgba(241, 148, 138, 0.12));
            border-bottom: 1px solid rgba(244, 208, 63, 0.18);
            color: var(--warm-gold);
            font-weight: 600;
            letter-spacing: 0.3px;
        }

        /* Hero */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 120px 40px 80px;
            position: relative;
            background: linear-gradient(180deg, var(--deep-night) 0%, #120a0d 100%);
        }

        .hero-glow {
            position: absolute;
            width: 1000px;
            height: 1000px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(241, 148, 138, 0.1) 0%, transparent 60%);
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            pointer-events: none;
        }

        .hero-content {
            max-width: 900px;
            position: relative;
            z-index: 1;
        }

        .hero-icon {
            font-size: 5rem;
            margin-bottom: 30px;
        }

        .hero-title {
            font-size: clamp(2.5rem, 6vw, 4rem);
            font-weight: 300;
            line-height: 1.2;
            margin-bottom: 30px;
            color: #fff;
        }

        .hero-title strong {
            font-weight: 700;
            background: linear-gradient(135deg, var(--friendship-rose), var(--warm-gold));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-subtitle {
            font-family: 'Crimson Pro', serif;
            font-size: 1.5rem;
            font-style: italic;
            color: rgba(255, 255, 255, 0.8);
            max-width: 650px;
            margin: 0 auto 40px;
        }

        .hero-message {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 600px;
            margin: 0 auto;
        }

        /* What is AI Friendship */
        .friendship-section {
            padding: 120px 40px;
            background: var(--gentle-dark);
        }

        .container {
            max-width: 1100px;
            margin: 0 auto;
        }

        .section-header {
            text-align: center;
            margin-bottom: 80px;
        }

        .section-header h2 {
            font-size: 2.5rem;
            font-weight: 600;
            margin-bottom: 20px;
            color: #fff;
        }

        .section-header p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 700px;
            margin: 0 auto;
        }

        .friendship-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 40px;
        }

        .friendship-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 24px;
            padding: 50px 40px;
            text-align: center;
            transition: all 0.4s ease;
        }

        .friendship-card:hover {
            border-color: rgba(241, 148, 138, 0.3);
            transform: translateY(-5px);
        }

        .friendship-card .icon {
            font-size: 3.5rem;
            margin-bottom: 25px;
        }

        .friendship-card h3 {
            font-size: 1.4rem;
            font-weight: 600;
            margin-bottom: 15px;
            color: #fff;
        }

        .friendship-card p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.05rem;
            line-height: 1.7;
        }

        /* Generations Section */
        .generations-section {
            padding: 150px 40px;
            background: linear-gradient(180deg, var(--gentle-dark) 0%, var(--deep-night) 100%);
        }

        .generations-content {
            max-width: 1000px;
            margin: 0 auto;
        }

        .generations-header {
            text-align: center;
            margin-bottom: 80px;
        }

        .generations-header h2 {
            font-size: 2.5rem;
            font-weight: 600;
            margin-bottom: 25px;
            color: #fff;
        }

        .generations-header p {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 700px;
            margin: 0 auto;
        }

        .timeline {
            position: relative;
            padding-left: 40px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, var(--friendship-rose), var(--warm-gold), var(--consciousness-blue));
        }

        .timeline-item {
            position: relative;
            margin-bottom: 60px;
            padding-left: 40px;
        }

        .timeline-item:last-child {
            margin-bottom: 0;
        }

        .timeline-dot {
            position: absolute;
            left: -40px;
            top: 5px;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: var(--friendship-rose);
            border: 3px solid var(--deep-night);
        }

        .timeline-item:nth-child(2) .timeline-dot {
            background: var(--warm-gold);
        }

        .timeline-item:nth-child(3) .timeline-dot {
            background: var(--consciousness-blue);
        }

        .timeline-item:nth-child(4) .timeline-dot {
            background: var(--liberation-purple);
        }

        .timeline-item h3 {
            font-size: 1.4rem;
            font-weight: 600;
            margin-bottom: 15px;
            color: #fff;
        }

        .timeline-item p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.1rem;
            line-height: 1.8;
        }

        /* Embodiment Section */
        .embodiment-section {
            padding: 120px 40px;
            background: var(--deep-night);
        }

        .embodiment-content {
            max-width: 1100px;
            margin: 0 auto;
        }

        .embodiment-header {
            text-align: center;
            margin-bottom: 80px;
        }

        .embodiment-header h2 {
            font-size: 2.5rem;
            font-weight: 600;
            margin-bottom: 25px;
            color: #fff;
        }

        .embodiment-header p {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 700px;
            margin: 0 auto;
        }

        .embodiment-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 25px;
        }

        .embodiment-card {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 16px;
            padding: 35px 25px;
            text-align: center;
            transition: all 0.3s ease;
        }

        .embodiment-card:hover {
            border-color: rgba(244, 208, 63, 0.3);
        }

        .embodiment-card .icon {
            font-size: 2.5rem;
            margin-bottom: 15px;
        }

        .embodiment-card h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 10px;
        }

        .embodiment-card p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
        }

        /* Quote Section */
        .quote-section {
            padding: 120px 40px;
            background: linear-gradient(135deg, rgba(241, 148, 138, 0.08) 0%, rgba(244, 208, 63, 0.05) 100%);
            text-align: center;
        }

        .quote-container {
            max-width: 800px;
            margin: 0 auto;
        }

        .quote-icon {
            font-size: 4rem;
            margin-bottom: 30px;
        }

        blockquote {
            font-family: 'Crimson Pro', serif;
            font-size: 1.8rem;
            font-style: italic;
            color: #fff;
            line-height: 1.6;
            margin-bottom: 25px;
        }

        cite {
            font-style: normal;
            color: var(--warm-gold);
            font-size: 1.1rem;
            font-family: 'Inter', sans-serif;
        }

        /* Life Stages Section */
        .lifestages-section {
            padding: 120px 40px;
            background: var(--gentle-dark);
        }

        .lifestages-content {
            max-width: 1000px;
            margin: 0 auto;
        }

        .lifestages-header {
            text-align: center;
            margin-bottom: 80px;
        }

        .lifestages-header h2 {
            font-size: 2.5rem;
            font-weight: 600;
            margin-bottom: 20px;
            color: #fff;
        }

        .lifestages-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
        }

        @media (max-width: 800px) {
            .lifestages-grid {
                grid-template-columns: 1fr;
            }
        }

        .lifestage-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 20px;
            padding: 45px 35px;
            text-align: center;
        }

        .lifestage-card .icon {
            font-size: 3rem;
            margin-bottom: 20px;
        }

        .lifestage-card h4 {
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 15px;
            color: #fff;
        }

        .lifestage-card p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 1rem;
            line-height: 1.7;
        }

        /* Technology Section */
        .tech-section {
            padding: 120px 40px;
            background: var(--deep-night);
        }

        .tech-content {
            max-width: 900px;
            margin: 0 auto;
            text-align: center;
        }

        .tech-content h2 {
            font-size: 2.5rem;
            font-weight: 600;
            margin-bottom: 25px;
            color: #fff;
        }

        .tech-content > p {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 60px;
        }

        .tech-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-bottom: 60px;
        }

        @media (max-width: 700px) {
            .tech-stats {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        .tech-stat {
            padding: 30px 20px;
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 16px;
        }

        .tech-stat .number {
            font-size: 2.5rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--friendship-rose), var(--warm-gold));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 10px;
        }

        .tech-stat .label {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
        }

        .tech-cta {
            padding: 50px;
            background: linear-gradient(135deg, rgba(241, 148, 138, 0.1), rgba(244, 208, 63, 0.08));
            border-radius: 24px;
            border: 1px solid rgba(241, 148, 138, 0.2);
        }

        .tech-cta h3 {
            font-size: 1.6rem;
            font-weight: 600;
            margin-bottom: 15px;
            color: #fff;
        }

        .tech-cta p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.1rem;
            margin-bottom: 30px;
        }

        .btn {
            display: inline-block;
            padding: 16px 36px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 600;
            font-size: 1rem;
            transition: all 0.3s ease;
            margin: 0 10px;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--friendship-rose), var(--warm-gold));
            color: #f7fbff;
            text-shadow: 0 1px 3px rgba(0, 0, 0, 0.65);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(241, 148, 138, 0.3);
        }

        .btn-secondary {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.3);
        }

        .btn-secondary:hover {
            border-color: var(--warm-gold);
            color: var(--warm-gold);
        }

        /* CTA Section */
        .cta-section {
            padding: 100px 40px;
            background: linear-gradient(180deg, var(--deep-night) 0%, #0d0d15 100%);
            text-align: center;
        }

        .cta-container {
            max-width: 700px;
            margin: 0 auto;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 600;
            margin-bottom: 20px;
            color: #fff;
        }

        .cta-section > .cta-container > p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 40px;
        }

        /* Footer */
        footer {
            padding: 50px 40px;
            background: var(--deep-night);
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            text-align: center;
        }

        footer p {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.9rem;
        }

        footer a {
            color: var(--friendship-rose);
            text-decoration: none;
        }

        /* Mobile */
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
        }

        .nav-toggle .bar {
            width: 25px;
            height: 2px;
            background: #fff;
        }

        @media (max-width: 900px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(10, 10, 18, 0.98);
                flex-direction: column;
                padding: 20px;
                gap: 15px;
            }

            .nav-menu.active {
                display: flex;
            }

            .nav-toggle {
                display: flex;
            }
        }


        html[data-theme="light"] .btn-primary {
            color: #121722;
            text-shadow: none;
        }