:root {
            --primary: #103C50;
            --accent: #28A7C8;
            --white: #ffffff;
            --bg-light: #f4f7f9;
            --transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Barlow', sans-serif;
        }

        body {
            background-color: var(--white);
            color: var(--primary);
            overflow-x: hidden;
            line-height: 1.6;
        }

        /* --- HEADER NAVIGATION --- */
        header {
            position: fixed;
            top: 0;
            width: 100%;
            padding: 1.5rem 5%;
            z-index: 1000;
            display: flex;
            justify-content: space-between;
            align-items: center;
            /* background: var(--primary); */
            background: linear-gradient(135deg, #072e3f, #143b3f);
            transition: var(--transition);
        }

        /* The "Floating Island" state */
        header.scrolled {
            top: 20px;
            width: 90%;
            left: 50%;
            opacity: 0.95;
            transform: translateX(-50%);
            padding: 0.8rem 2rem;
            border-radius: 50px;
            background: rgba(16, 60, 80, 0.9);
            backdrop-filter: blur(10px);
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
        }

        /* .logo { 
            color: var(--white);
            font-weight: 700; 
            font-size: 1.4rem; 
            letter-spacing: 1px;
        } */

        .logo {
            color: #ffffff;
            font-weight: 700;
            font-size: 1.5rem;
            letter-spacing: 1px;
            
            /* High-contrast lighting */
            text-shadow: 
                1px 1px 0px #094b4b, /* Thin teal "edge" */
                3px 3px 0px rgba(0,0,0,0.3); /* Offset shadow */
            
            transition: transform 0.3s ease;
        }

        .logo:hover {
            transform: translateY(-2px);
        }
        
        
        nav a {
            color: var(--white);
            text-decoration: none;
            margin-left: 2rem;
            /* font-weight: bold; */
            font-size: 0.9rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            transition: 0.3s;
            /* opacity: 0.8; */
        }

        nav a:hover { opacity: 1; color: var(--accent); }

        nav .active {
            font-weight: bold;
            opacity: 1; 
            color: var(--accent);
        }

        /* --- HAMBURGER MENU --- */
        .hamburger {
            display: none;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            gap: 6px;
            z-index: 1001;
            background: transparent;
            padding: 6px;
        }

        .hamburger span {
            display: block;
            width: 26px;
            height: 3px;
            background: var(--white);
            border-radius: 3px;
            transition: transform 0.25s ease, opacity 0.2s ease;
            transform-origin: center;
        }

        /* Create a clean X: translate vertically then rotate from center */
        .hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }

        .hamburger.active span:nth-child(3) {
            transform: translateY(-11px) rotate(-45deg);
        }

        .mobile-nav {
            display: none;
            position: fixed;
            top: 70px;
            left: 0;
            right: 0;
            background: rgba(7, 46, 63, 0.98);
            flex-direction: column;
            padding: 2rem;
            gap: 1rem;
            z-index: 999;
            animation: slideDown 0.3s ease-out;
        }

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

        .mobile-nav a {
            color: var(--white);
            text-decoration: none;
            font-weight: bold;
            font-size: 1rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            padding: 0.75rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            transition: 0.3s;
        }

        .mobile-nav a:hover {
            color: var(--accent);
            padding-left: 1rem;
        }

        .mobile-nav a:last-child {
            border-bottom: none;
        }

        @keyframes slideDown {
            from {
                opacity: 0;
                transform: translateY(-20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* --- HERO SECTION --- */
        .hero {
            height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: linear-gradient(135deg, #103C50, #1F6B8C);
            color: var(--white);
            padding: 0 10%;
        }

        .hero-content h1 {
            font-size: clamp(2.5rem, 8vw, 4.5rem);
            line-height: 1.1;
            margin-bottom: 1rem;
            font-weight: 700;
        }

        .hero-content p {
            font-size: 1.2rem;
            max-width: 600px;
            margin: 0 auto;
            opacity: 0.8;
        }

        /* --- REVEAL ANIMATIONS --- */
        .reveal {
            opacity: 0;
            transform: translateY(40px);
            transition: 1s ease-out;
            position: relative;
            margin-bottom: 60px;
        }

        .reveal::after {
            content: '';
            position: absolute;
            bottom: -30px;
            left: 50%;
            transform: translateX(-50%);
            width: 80%;
            height: 1px;
            background: linear-gradient(
                90deg, 
                transparent, 
                rgba(16, 60, 80, 0.2) 20%, 
                rgba(16, 60, 80, 0.4) 50%, 
                rgba(16, 60, 80, 0.2) 80%, 
                transparent
            );
        }

        /* Hide divider on last reveal section */
        .reveal:last-of-type::after {
            display: none;
        }

        .reveal.active {
            opacity: 1;
            transform: translateY(0);
        }

        /* --- ALTERNATING LAYOUTS --- */
        .section-padding { padding: 100px 5%; }

        .flex-row {
            display: flex;
            align-items: center;
            gap: 60px;
            /* margin-bottom: 100px; */
        }

        .flex-row.reverse { flex-direction: row-reverse; }

        .flex-content { flex: 1; }
        .flex-visual { 
            flex: 1; 
            height: 450px; 
            /* background: #eef2f4;  */
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }

        .flex-visual img {
            max-width: 100%;
            max-height: 100%;
            width: auto;
            height: auto;
            object-fit: contain;
            border-radius: 15px;
        }

        /* --- COUNTRIES UX --- */
        .countries-section {
            background: var(--bg-light);
            text-align: center;
        }

        .country-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 15px;
            margin-top: 40px;
        }

        .country-tag {
            background: var(--white);
            padding: 10px 24px;
            border-radius: 100px;
            border: 1px solid #d1d9e0;
            font-weight: 600;
            color: var(--primary);
            transition: var(--transition);
            cursor: default;
        }

        .country-tag:hover {
            border-color: var(--primary);
            transform: scale(1.05);
            background: var(--primary);
            color: var(--white);
        }

        /* --- BENEFITS GRID --- */
        .benefits-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin-top: 50px;
        }

        .benefit-card {
            display: flex;
            align-content: center;
            flex-direction: column;
            align-items: center;
            padding: 40px;
            background: var(--white);
            border: 1px solid #eee;
            border-radius: 24px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .benefit-card:hover {
            box-shadow: 0 20px 40px rgba(16, 60, 80, 0.1);
            transform: translateY(-10px);
        }

        .benefit-card::before {
            content: '';
            position: absolute;
            top: 0; left: 0; width: 100%; height: 5px;
            background: var(--primary);
        }

        .benefit-icon {
            width: 50px;
            height: 50px;
            margin-bottom: 20px;
            fill: var(--primary);
        }

        /* --- FOOTER --- */
        footer {
            padding: 10px 5%;
            background: var(--primary);
            color: var(--white);
            text-align: center;
            font-size: 0.9rem;
            border-top: 1px solid rgba(255,255,255,0.1);
        }

        /* --- RESPONSIVE --- */
        @media (max-width: 768px) {
            header nav { display: none; }
            .hamburger { display: flex; }
            .mobile-nav { display: none; }
            .flex-row, .flex-row.reverse { flex-direction: column; text-align: center; }
            .section-padding { padding: 120px 5% 60px 5%; }
        }

        /* Go-to-top button styles  */
        #toTop {
            position: fixed;
            right: 18px;
            bottom: 18px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: #08212d;
            color: #ffffff;
            border: none;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 18px rgba(16,60,80,0.15);
            cursor: pointer;
            opacity: 0;
            pointer-events: none;
            transform: translateY(8px);
            transition: opacity 0.25s ease, transform 0.25s ease;
            z-index: 1200;
        }

        #toTop.show {
            opacity: 0.9;
            pointer-events: auto;
            transform: translateY(0);
        }