:root {
            --bg: #04060D;
            --surface: #080C18;
            --surface2: #0D1424;
            --border: rgba(255, 255, 255, 0.07);
            --border2: rgba(255, 255, 255, 0.12);
            --blue: #1B6FFF;
            --blue-glow: rgba(27, 111, 255, 0.18);
            --blue-mid: #3B8BFF;
            --text: #E8EDF8;
            --muted: #7A8CAA;
            --muted2: #A0B0CC;
            --accent: #00E5CC;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            background: var(--bg);
            color: var(--text);
            font-family: 'Space Grotesk', sans-serif;
            font-size: 16px;
            line-height: 1.65;
            overflow-x: hidden;
        }

        body::before {
            content: '';
            position: fixed;
            inset: 0;
            background-image:
                linear-gradient(rgba(27, 111, 255, 0.04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(27, 111, 255, 0.04) 1px, transparent 1px);
            background-size: 48px 48px;
            pointer-events: none;
            z-index: 0;
        }

        nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 48px;
            height: 68px;
            background: rgba(4, 6, 13, 0.85);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
        }

        .logo img {
            width: 34px;
            height: 34px;
            object-fit: contain;
        }

        .logo-name {
            font-family: 'Syne', sans-serif;
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.3px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 36px;
            list-style: none;
        }

        .nav-links a {
            color: var(--muted);
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.01em;
            transition: color 0.2s;
        }

        .nav-links a:hover {
            color: var(--text);
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .btn-doc {
            color: var(--muted2);
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            transition: color 0.2s;
            border: 1px solid var(--border2);
            padding: 8px 18px;
            border-radius: 8px;
        }

        .btn-doc:hover {
            color: var(--text);
            border-color: rgba(255, 255, 255, 0.22);
        }

        .btn-primary {
            background: var(--blue);
            color: #fff;
            text-decoration: none;
            font-size: 14px;
            font-weight: 600;
            padding: 9px 22px;
            border-radius: 8px;
            transition: background 0.2s, transform 0.15s;
            letter-spacing: 0.01em;
        }

        .btn-primary:hover {
            background: var(--blue-mid);
            transform: translateY(-1px);
        }

        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 120px 24px 80px;
            z-index: 1;
            overflow: hidden;
        }

        .hero-glow {
            position: absolute;
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(27, 111, 255, 0.13) 0%, transparent 70%);
            top: 50%;
            left: 50%;
            transform: translate(-50%, -55%);
            pointer-events: none;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            border: 1px solid rgba(27, 111, 255, 0.35);
            background: rgba(27, 111, 255, 0.08);
            color: #6BAEFF;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            padding: 6px 16px;
            border-radius: 100px;
            margin-bottom: 32px;
        }

        .badge-dot {
            width: 6px;
            height: 6px;
            background: var(--blue);
            border-radius: 50%;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {

            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }

            50% {
                opacity: 0.5;
                transform: scale(1.4);
            }
        }

        h1 {
            font-family: 'Syne', sans-serif;
            font-size: clamp(44px, 6vw, 82px);
            font-weight: 800;
            line-height: 1.04;
            letter-spacing: -0.04em;
            max-width: 820px;
            margin: 0 auto 24px;
        }

        h1 .blue {
            color: var(--blue);
        }

        .hero-sub {
            font-size: 18px;
            color: var(--muted2);
            max-width: 560px;
            margin: 0 auto 48px;
            line-height: 1.7;
            font-weight: 400;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-hero {
            background: var(--blue);
            color: #fff;
            text-decoration: none;
            font-size: 16px;
            font-weight: 600;
            padding: 14px 32px;
            border-radius: 10px;
            transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
            box-shadow: 0 0 40px rgba(27, 111, 255, 0.3);
            letter-spacing: 0.01em;
        }

        .btn-hero:hover {
            background: var(--blue-mid);
            transform: translateY(-2px);
            box-shadow: 0 0 60px rgba(27, 111, 255, 0.45);
        }

        .btn-hero-ghost {
            background: transparent;
            color: var(--muted2);
            text-decoration: none;
            font-size: 16px;
            font-weight: 500;
            padding: 14px 32px;
            border-radius: 10px;
            border: 1px solid var(--border2);
            transition: color 0.2s, border-color 0.2s, transform 0.15s;
        }

        .btn-hero-ghost:hover {
            color: var(--text);
            border-color: rgba(255, 255, 255, 0.22);
            transform: translateY(-2px);
        }

        .chains-row {
            margin-top: 72px;
            text-align: center;
            z-index: 1;
            position: relative;
        }

        .chains-label {
            font-size: 12px;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            color: var(--muted);
            margin-bottom: 20px;
            font-weight: 500;
        }

        .chains-list {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 32px;
            flex-wrap: wrap;
        }

        .chain-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            opacity: 0.45;
            transition: opacity 0.2s;
        }

        .chain-item:hover {
            opacity: 0.85;
        }

        .chain-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--surface2);
            border: 1px solid var(--border2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            color: var(--muted2);
        }

        .chain-name {
            font-size: 11px;
            color: var(--muted);
            font-weight: 500;
        }

        .section-divider {
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--border2), transparent);
            margin: 0 auto;
            max-width: 1100px;
        }

        section {
            position: relative;
            z-index: 1;
            padding: 100px 24px;
            max-width: 1100px;
            margin: 0 auto;
        }

        .section-tag {
            display: inline-block;
            font-size: 11px;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--blue-mid);
            font-weight: 600;
            margin-bottom: 16px;
        }

        .section-title {
            font-family: 'Syne', sans-serif;
            font-size: clamp(28px, 3.5vw, 46px);
            font-weight: 800;
            letter-spacing: -0.03em;
            line-height: 1.1;
            margin-bottom: 18px;
        }

        .section-sub {
            color: var(--muted2);
            font-size: 17px;
            max-width: 520px;
            line-height: 1.7;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1px;
            background: var(--border);
            border: 1px solid var(--border);
            border-radius: 16px;
            overflow: hidden;
            margin-top: 64px;
        }

        .feature-card {
            background: var(--surface);
            padding: 40px 36px;
            transition: background 0.25s;
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(27, 111, 255, 0.4), transparent);
            opacity: 0;
            transition: opacity 0.3s;
        }

        .feature-card:hover {
            background: var(--surface2);
        }

        .feature-card:hover::before {
            opacity: 1;
        }

        .feature-icon {
            width: 44px;
            height: 44px;
            background: var(--blue-glow);
            border: 1px solid rgba(27, 111, 255, 0.25);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
        }

        .feature-icon svg {
            width: 20px;
            height: 20px;
        }

        .feature-title {
            font-family: 'Syne', sans-serif;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            letter-spacing: -0.02em;
        }

        .feature-desc {
            color: var(--muted2);
            font-size: 14.5px;
            line-height: 1.65;
        }

        .how-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 80px;
            align-items: center;
            margin-top: 64px;
        }

        .steps-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .step {
            display: flex;
            gap: 24px;
            padding: 28px 0;
            border-bottom: 1px solid var(--border);
            cursor: pointer;
            transition: background 0.2s;
            position: relative;
        }

        .step:last-child {
            border-bottom: none;
        }

        .step.active .step-num {
            background: var(--blue);
            color: #fff;
            border-color: var(--blue);
        }

        .step.active .step-title {
            color: var(--text);
        }

        .step-num {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            border: 1px solid var(--border2);
            background: var(--surface2);
            color: var(--muted);
            font-size: 13px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            margin-top: 2px;
            transition: background 0.2s, color 0.2s, border-color 0.2s;
        }

        .step-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--muted2);
            margin-bottom: 6px;
            transition: color 0.2s;
        }

        .step-desc {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.6;
        }

        .code-panel {
            background: var(--surface2);
            border: 1px solid var(--border2);
            border-radius: 14px;
            overflow: hidden;
        }

        .code-header {
            background: #0A0F1E;
            padding: 14px 20px;
            display: flex;
            align-items: center;
            gap: 10px;
            border-bottom: 1px solid var(--border);
        }

        .code-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
        }

        .code-dots {
            display: flex;
            gap: 6px;
        }

        .code-filename {
            font-size: 12px;
            color: var(--muted);
            font-family: monospace;
            margin-left: 8px;
        }

        pre {
            padding: 24px;
            font-size: 13px;
            line-height: 1.75;
            font-family: 'SF Mono', 'Fira Code', monospace;
            color: #C8D8F0;
            overflow-x: auto;
            min-height: 240px;
        }

        .kw {
            color: #6BAEFF;
        }

        .str {
            color: #7FE0C2;
        }

        .fn {
            color: #FFD580;
        }

        .cm {
            color: #4A6080;
        }

        .prop {
            color: #E8A87C;
        }

        .isolation-visual {
            margin-top: 64px;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .merchant-vault {
            background: var(--surface2);
            border: 1px solid var(--border2);
            border-radius: 14px;
            padding: 28px 24px;
            position: relative;
            overflow: hidden;
            transition: border-color 0.3s, transform 0.2s;
        }

        .merchant-vault:hover {
            border-color: rgba(27, 111, 255, 0.4);
            transform: translateY(-3px);
        }

        .merchant-vault::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--blue), var(--accent));
        }

        .vault-tag {
            font-size: 10px;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            color: var(--muted);
            font-weight: 600;
            margin-bottom: 16px;
        }

        .vault-id {
            font-family: 'Syne', sans-serif;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .vault-status {
            font-size: 12px;
            color: var(--accent);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .vault-status::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
        }

        .vault-chains {
            margin-top: 20px;
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }

        .chain-pill {
            font-size: 10px;
            font-weight: 600;
            padding: 3px 9px;
            border-radius: 100px;
            background: rgba(27, 111, 255, 0.1);
            border: 1px solid rgba(27, 111, 255, 0.2);
            color: #6BAEFF;
            letter-spacing: 0.05em;
        }

        .isolation-label {
            margin-top: 24px;
            text-align: center;
            font-size: 13px;
            color: var(--muted);
        }

        .isolation-label strong {
            color: var(--text);
        }

        footer {
            position: relative;
            z-index: 1;
            border-top: 1px solid var(--border);
            padding: 32px 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }

        .footer-left {
            display: flex;
            align-items: center;
            gap: 16px;
        }

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

        .footer-logo img {
            width: 22px;
            height: 22px;
        }

        .footer-logo-name {
            font-family: 'Syne', sans-serif;
            font-size: 13px;
            font-weight: 700;
            color: var(--muted);
        }

        .footer-sep {
            color: var(--border2);
        }

        .footer-corp {
            font-size: 12px;
            color: var(--muted);
        }

        .footer-corp a {
            color: var(--muted);
            text-decoration: none;
            transition: color 0.2s;
        }

        .footer-corp a:hover {
            color: var(--text);
        }

        .footer-right {
            display: flex;
            align-items: center;
            gap: 24px;
        }

        .footer-link {
            font-size: 12px;
            color: var(--muted);
            text-decoration: none;
            transition: color 0.2s;
        }

        .footer-link:hover {
            color: var(--text);
        }

        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .fade-up {
            animation: fadeUp 0.7s ease both;
        }

        .fade-up-2 {
            animation: fadeUp 0.7s 0.15s ease both;
        }

        .fade-up-3 {
            animation: fadeUp 0.7s 0.28s ease both;
        }

        @media (max-width: 768px) {
            nav {
                padding: 0 20px;
            }

            .nav-links {
                display: none;
            }

            .how-layout {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .isolation-visual {
                grid-template-columns: 1fr;
            }

            footer {
                padding: 24px 20px;
            }
        }
/* New Sections */
.metrics-layout { display: flex; gap: 40px; justify-content: center; margin-top: 64px; flex-wrap: wrap; }
.metric-card { background: var(--surface); border: 1px solid var(--border); padding: 40px; border-radius: 16px; min-width: 240px; text-align: center; }
.metric-val { font-family: 'Syne', sans-serif; font-size: 48px; font-weight: 800; }
.metric-val.blue { color: var(--blue); }
.metric-val.green { color: var(--accent); }
.metric-val.white { color: var(--text); }
.metric-name { color: var(--muted); font-size: 14px; margin-top: 8px; font-weight: 500; text-transform: uppercase; letter-spacing: 0.05em; }

.use-cases-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; margin-top: 64px; }
.use-case-card { padding: 36px; background: var(--surface2); border: 1px solid var(--border2); border-radius: 14px; transition: transform 0.2s, border-color 0.2s; }
.use-case-card:hover { transform: translateY(-4px); border-color: rgba(27, 111, 255, 0.4); }
.use-case-title { font-family: 'Syne', sans-serif; font-size: 20px; font-weight: 700; margin-bottom: 12px; color: var(--text); }
.use-case-desc { color: var(--muted2); font-size: 14.5px; line-height: 1.65; }

.cta-section { text-align: center; padding: 120px 24px; }
.cta-title { font-family: 'Syne', sans-serif; font-size: clamp(36px, 4.5vw, 56px); font-weight: 800; letter-spacing: -0.03em; margin-bottom: 24px; line-height: 1.1; }

/* Infrastructure Section */
.infra-layout { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 32px; margin-top: 64px; }
.infra-card { background: var(--surface2); border: 1px solid var(--border2); padding: 48px; border-radius: 16px; transition: transform 0.2s, border-color 0.2s; }
.infra-card:hover { transform: translateY(-4px); border-color: rgba(27, 111, 255, 0.4); }
.infra-icon { width: 48px; height: 48px; border-radius: 12px; display: flex; align-items: center; justify-content: center; margin-bottom: 24px; }
.infra-icon.blue { background: rgba(27, 111, 255, 0.1); border: 1px solid rgba(27, 111, 255, 0.2); color: var(--blue); }
.infra-icon.green { background: rgba(0, 229, 204, 0.1); border: 1px solid rgba(0, 229, 204, 0.2); color: var(--accent); }
.infra-title { font-family: 'Syne', sans-serif; font-size: 24px; font-weight: 700; color: var(--text); margin-bottom: 12px; }
.infra-desc { color: var(--muted2); line-height: 1.7; font-size: 15px; }

/* Utility & Extracted Classes */
.text-center { text-align: center; }
.block { display: block; }
.compliance-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 40px; margin-top: 64px; }
.compliance-item-title { color: var(--text); font-family: 'Syne', sans-serif; font-size: 18px; display: block; margin-bottom: 12px; }
.compliance-item-desc { color: var(--muted2); font-size: 14.5px; line-height: 1.65; }
.dev-card { display: flex; flex-direction: column; align-items: center; text-align: center; margin-top: 48px; background: var(--surface); border: 1px solid var(--border); padding: 64px 24px; border-radius: 20px; }
.dev-card-subtitle { color: var(--text); font-size: 20px; font-weight: 500; margin-bottom: 32px; max-width: 600px; }
.dev-pill-container { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; }
.dev-pill { font-size: 14px; padding: 10px 20px; color: var(--text); border-color: var(--border2); background: var(--surface2); }
.cta-sub { margin: 0 auto 40px; max-width: 600px; }