:root {
            /* Cores e curvas de Bézier do design_system.html originais */
            --bg-deep: #EAEAE5;
            --bg-surface: #FFFFFF;
            --text-main: #1C1C1C;
            --text-muted: #78716C;
            --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
        }

        body {
            font-family: 'Inter', sans-serif;
            background-color: var(--bg-surface);
            /* Revertido para estética Clara/Branca */
            color: var(--text-main);
            overflow-x: hidden;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }

        /* Estrutura Virtual para permitir Scroll */
        .hero-container {
            height: 300vh;
            position: relative;
        }

        .hero-sticky {
            position: sticky;
            top: 0;
            height: 100vh;
            width: 100vw;
            overflow: hidden;
            display: flex;
            align-items: center;
        }

        /* Navbar elegante */
        header {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 50;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 2rem 4rem;
            opacity: 0;
            transform: translateY(-20px);
            transition: opacity 1s var(--ease-out), transform 1s var(--ease-out);
        }

        header.loaded {
            opacity: 1;
            transform: translateY(0);
        }

        /* Textos e Tipografia Premium - Revertido para Dark em fundo majoritariamente branco */
        .hero-text-block {
            max-width: 650px;
            position: relative;
            z-index: 30;
        }

        .hero-title {
            font-size: 3rem;
            line-height: 1.05;
            font-weight: 500;
            letter-spacing: -0.04em;
            margin-bottom: 2rem;
            color: var(--text-main);
        }

        @media (min-width: 1024px) {
            .hero-title {
                font-size: 4.5rem;
            }
        }

        @media (min-width: 1440px) {
            .hero-title {
                font-size: 5.5rem;
            }
        }

        .hero-desc {
            font-size: 1.125rem;
            line-height: 1.6;
            color: var(--text-muted);
            margin-bottom: 3.5rem;
            max-width: 480px;
            opacity: 0;
        }

        /* Text Outline - Revertido para Traço Escuro CSS-only */
        .text-outline {
            color: transparent;
            -webkit-text-stroke: 1.5px var(--text-main);
            background-clip: text;
            -webkit-background-clip: text;
            position: relative;
            display: inline-block;
        }

        .stroke-reveal {
            background-image: linear-gradient(to right, var(--text-main) 0%, var(--text-main) 100%);
            background-repeat: no-repeat;
            background-size: 0% 100%;
            transition: background-size 1.5s cubic-bezier(0.85, 0, 0.15, 1);
        }

        .stroke-reveal.active {
            background-size: 100% 100%;
        }

        /* Botões inspirados no DS - Cores claras/escuras originais */
        .hero-actions {
            display: flex;
            gap: 1.5rem;
            opacity: 0;
            align-items: center;
        }

        .btn-primary {
            background-color: var(--text-main);
            color: #ffffff;
            padding: 1.1rem 2.5rem;
            border-radius: 9999px;
            font-size: 0.875rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            display: inline-flex;
            align-items: center;
            gap: 0.75rem;
            transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out), background-color 0.4s var(--ease-out);
        }

        .btn-primary:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 30px rgba(28, 28, 28, 0.25);
            background-color: #000;
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--text-main);
            padding: 1.1rem 2.5rem;
            border-radius: 9999px;
            border: 1px solid var(--border-color, rgba(28, 28, 28, 0.2));
            font-size: 0.875rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            transition: all 0.4s var(--ease-out);
        }

        .btn-secondary:hover {
            border-color: var(--text-main);
            transform: translateY(-4px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.05);
        }

        /* ScrollyVideo Fullscreen Background Container */
        .scrolly-video-container {
            position: absolute !important;
            inset: 0 !important;
            width: 100vw !important;
            height: 100vh !important;
            z-index: 10 !important;
            overflow: hidden !important;
        }

        /* Overlay suave e iluminado para dar destaque ao texto sem escurecer a página (mix-blend-mode Apple) */
        .video-overlay {
            position: absolute;
            inset: 0;
            /* Um degradê branco hiper sutil para a esquerda para manter contraste limpo */
            background: linear-gradient(to right, rgba(255, 255, 255, 0.6) 0%, rgba(255, 255, 255, 0.1) 40%, transparent 100%);
            z-index: 20;
            pointer-events: none;
        }

        /* Navegação Lateral (Direita) - Tema Dark original */
        .nav-indicator {
            position: absolute;
            right: 3rem;
            top: 50%;
            transform: translateY(-50%);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 1.5rem;
            z-index: 40;
            opacity: 0;
        }

        .nav-indicator-line {
            width: 1px;
            height: 120px;
            background-color: rgba(28, 28, 28, 0.15);
            position: relative;
        }

        .nav-indicator-progress {
            position: absolute;
            top: 0;
            left: 0;
            width: 1px;
            background-color: var(--text-main);
            height: 0%;
            border-radius: 1px;
        }

        .nav-indicator-number {
            font-family: 'Inter', monospace;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--text-main);
        }

        /* Layout Area de Texto */
        .content-wrapper {
            position: relative;
            z-index: 30;
            width: 100%;
            height: 100vh;
            max-width: 1600px;
            margin: 0 auto;
            padding: 0 4rem;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: flex-start;
        }

        .line {
            overflow: hidden;
            padding-bottom: 0.1em;
        }

        @media (max-width: 1024px) {
            .video-overlay {
                background: rgba(255, 255, 255, 0.3);
            }

            /* Mais branco no fundo em mobile para garantir leitura */
            .content-wrapper {
                padding: 0 2.5rem;
                align-items: center;
                text-align: center;
            }

            .hero-text-block {
                display: flex;
                flex-direction: column;
                align-items: center;
            }

            .hero-actions {
                justify-content: center;
                width: 100%;
            }

            .nav-indicator {
                display: none;
            }
        }

        @media (max-width: 640px) {
            .hero-actions {
                flex-direction: column;
                gap: 1rem;
            }

            .btn-primary,
            .btn-secondary {
                width: 100%;
                justify-content: center;
            }

            header {
                flex-direction: column;
                gap: 1rem;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            .hero-container {
                height: 100vh;
            }

            .hero-sticky {
                position: relative;
            }

            .stroke-reveal {
                background-size: 100% 100%;
                transition: none;
            }

            .nav-indicator-line,
            .nav-indicator-progress {
                height: 100% !important;
            }

            .hero-desc,
            .hero-actions,
            header,
            .nav-indicator {
                opacity: 1 !important;
                transform: none !important;
                animation: none !important;
                transition: none !important;
            }
        }

        /* ================= SECOND FOLD STYLES ================= */
        .tech-fold {
            background-color: #EAEAE5;
            /* Light theme from design system */
            color: #1C1C1C;
            padding: 8rem 4rem;
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            min-height: 100vh;
            z-index: 20;
        }

        .tech-fold-bg {
            position: absolute;
            inset: 0;
            background-image:
                radial-gradient(circle at 70% 30%, rgba(255, 255, 255, 0.8) 0%, transparent 50%),
                linear-gradient(to bottom, transparent, rgba(234, 234, 229, 0.8));
            pointer-events: none;
            z-index: 0;
            background-size: cover;
            background-repeat: no-repeat;
        }

        .tech-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            max-width: 1400px;
            margin: 0 auto;
            position: relative;
            z-index: 10;
            width: 100%;
        }

        @media (max-width: 1024px) {
            .tech-grid {
                grid-template-columns: 1fr;
                gap: 3rem;
            }

            .tech-fold {
                padding: 6rem 2.5rem;
            }
        }

        .tech-visual {
            position: relative;
            border-radius: 20px;
            overflow: hidden;
            background: #FFFFFF;
            border: 1px solid rgba(0, 0, 0, 0.05);
            box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.02), 0 20px 40px rgba(0, 0, 0, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 4rem;
            min-height: 500px;
            /* Grid subtle background for the visual container */
            background-image: linear-gradient(rgba(0, 0, 0, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(0, 0, 0, 0.03) 1px, transparent 1px);
            background-size: 40px 40px;
        }

        .tech-visual img {
            width: 100%;
            height: auto;
            max-width: 500px;
            object-fit: contain;
            filter: drop-shadow(0 20px 30px rgba(0, 0, 0, 0.08));
            transition: transform 1s var(--ease-out);
            mix-blend-mode: multiply;
        }

        .tech-visual:hover img {
            transform: scale(1.05);
        }

        .tech-content {
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .tech-title {
            font-size: 3.5rem;
            font-weight: 500;
            letter-spacing: -0.04em;
            margin-bottom: 1.5rem;
            line-height: 1.1;
            color: #1C1C1C;
        }

        .tech-subtitle {
            font-size: 1.1rem;
            color: #78716C;
            /* text-stone-500 equivalent */
            margin-bottom: 3.5rem;
            line-height: 1.6;
            max-width: 500px;
        }

        .feature-list {
            display: flex;
            flex-direction: column;
            gap: 2.5rem;
        }

        .feature-item {
            display: flex;
            gap: 1.5rem;
            align-items: flex-start;
        }

        .feature-num {
            background-color: #FFFFFF;
            color: #1C1C1C;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: 'Inter', monospace;
            font-size: 0.85rem;
            font-weight: 600;
            flex-shrink: 0;
            border: 1px solid rgba(0, 0, 0, 0.05);
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.02);
            transition: all 0.4s var(--ease-out);
        }

        .feature-item:hover .feature-num {
            background-color: #1C1C1C;
            color: #FFFFFF;
            transform: scale(1.05);
        }

        .feature-text h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: #1C1C1C;
            letter-spacing: -0.01em;
        }

        .feature-text p {
            font-size: 0.95rem;
            color: #78716C;
            /* text-stone-500 */
            line-height: 1.5;
        }

        /* Animations classes */
        .tech-anim-up {
            opacity: 0;
            transform: translateY(40px);
        }

        .tech-anim-scale {
            opacity: 0;
            transform: scale(0.95);
        }

        /* ================= THIRD FOLD STYLES ================= */
        .marquee-container {
            display: flex;
            overflow: hidden;
            user-select: none;
            background-color: #050505;
            padding: 2.5rem 0;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .marquee-content {
            flex-shrink: 0;
            display: flex;
            justify-content: space-around;
            min-width: 100%;
            animation: scroll-left 40s linear infinite;
            align-items: center;
        }

        @keyframes scroll-left {
            from {
                transform: translateX(0);
            }

            to {
                transform: translateX(-100%);
            }
        }

        .flow-fold {
            background-color: #050505;
            color: #FFFFFF;
            position: relative;
            overflow: hidden;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 4rem 2rem;
        }

        .flow-bg-img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.6;
            transform: scale(1.1);
            /* baseline scale for parallax */
        }

        .flow-gradient {
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at center, transparent 0%, #050505 90%);
            z-index: 1;
        }

        .flow-content {
            position: relative;
            z-index: 10;
            text-align: center;
            max-width: 1000px;
        }

        .flow-subtitle {
            font-size: 0.85rem;
            font-weight: 600;
            font-family: 'Inter', monospace;
            text-transform: uppercase;
            letter-spacing: 0.3em;
            color: #A8A29E;
            margin-bottom: 2rem;
            display: block;
        }

        .flow-title {
            font-size: 4rem;
            font-weight: 500;
            letter-spacing: -0.04em;
            line-height: 1.05;
            color: #FFFFFF;
        }

        @media (min-width: 1024px) {
            .flow-title {
                font-size: 7.5rem;
            }
        }

        .flow-icon-wrapper {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 90px;
            height: 90px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(10px);
            margin: 0 2rem;
            transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
            vertical-align: middle;
            cursor: pointer;
        }

        .flow-fold:hover .flow-icon-wrapper {
            background: #FFFFFF;
            color: #050505;
            transform: scale(1.1) rotate(90deg);
            border-color: #FFFFFF;
        }

        .flow-icon-wrapper iconify-icon {
            font-size: 2.5rem;
            transition: color 0.3s;
        }

        .flow-anim-up {
            opacity: 0;
            transform: translateY(50px);
        }