/* ===== Theme variables (light default, dark on .theme-dark) ===== */
        :root{
            --primary: #2E8B57;        /* Sea Green - strong, trustworthy */
            --accent: #FFA500;         /* Orange - energetic, call to action */
            --secondary: #4682B4;      /* Steel Blue - complementary */
            --dark: #1A5632;           /* Dark Green - sophisticated */
            --light: #F5F9F7;          /* Light background */
            --panel: #ffffff;
            --text: #2C3E50;           /* Dark blue-gray for text */
            --muted: #7F8C8D;          /* Muted text */
            --white: #ffffff;
            --radius: 10px;
            --shadow: 0 8px 20px rgba(15,23,42,.08);
            --ease: cubic-bezier(.2,.9,.3,1);
            --max-width: 1200px;
            --transition-fast: 200ms;
            --transition-med: 360ms;
            --transition-slow: 420ms;
        }

        /* Themed dark mode */
        :root.theme-dark, .theme-dark {
            --primary: #3CB371;        /* Medium Sea Green */
            --accent: #FFB74D;         /* Light Orange */
            --secondary: #5DADE2;      /* Light Steel Blue */
            --dark: #145A32;           /* Darker Green */
            --light: #0D1B13;          /* Very dark green background */
            --panel: #1A2F1F;          /* Card background */
            --text: #EAEDED;           /* Light text */
            --muted: #B0BEC5;          /* Muted light text */
            --white: #EAEDED;
        }

        /* ===== Base reset ===== */
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            font-family:'Roboto',system-ui,-apple-system,'Segoe UI',Roboto,Arial;
            color:var(--text);
            background:var(--light);
            line-height:1.6;
            -webkit-font-smoothing:antialiased;
            -moz-osx-font-smoothing:grayscale;
            transition:background var(--transition-slow) var(--ease), color var(--transition-slow) var(--ease);
        }
        img{display:block;max-width:100%;height:auto}
        a{text-decoration:none;color:inherit}
        .container{width:92%;max-width:var(--max-width);margin:0 auto;padding:0 12px}

        /* Accessibility helper */
        .sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

        /* ===== Top header ===== */
        header.topbar{
            background: linear-gradient(135deg, var(--dark), var(--primary));
            color:var(--white);
            padding:12px 6%;
            box-shadow:var(--shadow);
            position:relative;
            transition: background var(--transition-slow) var(--ease);
        }
        .topbar .container{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
        .brand{display:flex;align-items:center;gap:12px}
        .brand img{height:62px;width:auto;filter:drop-shadow(0 6px 14px rgba(0,0,0,.12));transition:transform .45s var(--ease)}
        .brand img:hover{transform:translateY(-3px)}
        .contact-items{display:flex;gap:12px;align-items:center}
        .contact-item{display:flex;gap:8px;align-items:center;padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.12);font-size:14px;backdrop-filter: blur(10px);}
        .contact-item i{color:var(--accent);font-size:16px}

        /* dark-mode toggle button container */
        .header-controls{display:flex;align-items:center;gap:10px}
        .theme-toggle{
            position:relative;
            display:inline-flex;
            align-items:center;
            justify-content:center;
            width:44px;
            height:44px;
            border-radius:999px;
            background:rgba(255,255,255,0.12);
            border:1px solid rgba(255,255,255,0.12);
            color:var(--white);
            cursor:pointer;
            transition:all var(--transition-fast) var(--ease), transform .28s var(--ease);
            backdrop-filter: blur(10px);
        }
        .theme-toggle:active{transform:scale(.98);}
        .theme-toggle .icon{font-size:18px;line-height:1;pointer-events:none;transition:transform .42s var(--ease), opacity .28s var(--ease)}
        .theme-toggle .icon--sun{transform-origin:center;display:inline-block}
        .theme-toggle .icon--moon{transform-origin:center;display:inline-block;position:absolute}

        /* tooltip */
        .tt{
            position:absolute;
            top:calc(100% + 8px);
            right:50%;
            transform:translateX(50%);
            background:rgba(0,0,0,0.7);
            color:#fff;padding:6px 8px;border-radius:6px;font-size:12px;white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .18s;
            z-index:120;
        }
        .theme-toggle:hover .tt{opacity:1}

        /* ===== IMPROVED NAVIGATION ===== */
        nav.primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            position: sticky;
            top: 0;
            z-index: 1200;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
            transition: background var(--transition-slow);
            padding: 0;
        }

        .nav-container {
            width: 100%;
            max-width: 100%;
            margin: 0 auto;
            padding: 0 6%;
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0;
            min-height: 70px;
            position: relative;
        }

        .nav-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            gap: 2px;
            align-items: center;
            justify-content: center;
            flex: 1;
            max-width: 100%;
            overflow: visible;
        }

        .nav-links li {
            display: flex;
            align-items: center;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 12px 18px;
            border-radius: 6px;
            color: var(--white);
            font-weight: 600;
            font-size: 14px;
            letter-spacing: 0.3px;
            transition: all 0.28s var(--ease);
            transform: translateZ(0);
            white-space: nowrap;
            position: relative;
            text-align: center;
        }

        .nav-links a:hover {
            background: rgba(255, 255, 255, 0.15);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        .nav-links a.active {
            background: rgba(255, 255, 255, 0.2);
            color: var(--white);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        /* Dropdown improvements */
        .has-sub {
            position: relative;
        }

        .nav-links .has-sub > a {
            padding-right: 28px;
        }

        .nav-links .has-sub > a::after {
            content: '\f0d7';
            font-family: 'FontAwesome';
            position: absolute;
            right: 12px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 12px;
            transition: transform 0.3s var(--ease);
        }

        .has-sub:hover > a::after {
            transform: translateY(-50%) rotate(180deg);
        }

        .sub-menu {
            position: absolute;
            top: 100%;
            left: 0;
            right: auto;
            min-width: 220px;
            background: var(--dark);
            border-radius: 8px;
            padding: 8px 0;
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all 0.28s var(--ease);
            z-index: 1000;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .has-sub:focus-within .sub-menu,
        .has-sub:hover .sub-menu {
            opacity: 1;
            visibility: visible;
            transform: translateY(5px);
        }

        .sub-menu a {
            display: block;
            padding: 14px 22px;
            color: var(--white);
            font-weight: 700;
            font-size: 14px;
            border-radius: 6px;
            transform: none;
            text-align: left;
        }

        .sub-menu a:hover {
            background: var(--primary);
            transform: none;
            box-shadow: none;
        }
        .sub-menu a:not(:last-child) {
            margin-bottom: 10px;
        }
        
        /* Open state for submenu via JS */
        .has-sub.open > a::after { transform: translateY(-50%) rotate(180deg); }
        .has-sub.open .sub-menu {
            opacity: 1;
            visibility: visible;
            transform: translateY(5px);
            display: block;
        }

        /* Menu toggle for mobile */
        .menu-toggle {
            display: none;
            background: transparent;
            border: 0;
            color: var(--white);
            font-size: 22px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            transition: all 0.3s var(--ease);
            position: absolute;
            left: 20px;
        }

        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        /* Responsive adjustments for navigation */
        @media (max-width: 1100px) {
            .nav-links a {
                padding: 12px 14px;
                font-size: 13px;
            }
            
            .nav-links .has-sub > a {
                padding-right: 26px;
            }
        }

        @media (max-width: 900px) {
            .nav-wrap {
                min-height: 60px;
                justify-content: space-between;
            }
            
            .nav-links {
                display: none;
                position: fixed;
                top: 60px;
                left: 0;
                width: 100%;
                background: var(--dark);
                flex-direction: column;
                padding: 20px;
                gap: 5px;
                box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
                z-index: 1100;
                max-height: calc(100vh - 60px);
                overflow-y: auto;
            }
            
            .nav-links.show {
                display: flex;
            }
            
            .nav-links li {
                width: 100%;
            }
            
            .nav-links a {
                width: 100%;
                padding: 16px 20px;
                border-radius: 8px;
                justify-content: space-between;
            }
            
            .nav-links .has-sub > a::after {
                content: '\f0da';
                transform: translateY(-50%);
            }
            
            .has-sub:hover > a::after {
                transform: translateY(-50%) rotate(90deg);
            }
            
            .sub-menu {
                position: static;
                opacity: 1;
                visibility: visible;
                transform: none;
                box-shadow: none;
                background: rgba(255, 255, 255, 0.05);
                margin-top: 5px;
                padding: 0;
                display: none;
                right: auto;
                left: 0;
            }
            
            .has-sub:focus-within .sub-menu,
            .has-sub:hover .sub-menu {
                display: block;
            }
            
            .menu-toggle {
                display: flex;
                position: static;
                order: -1;
            }
        }

        @media (max-width: 520px) {
            .nav-wrap {
                min-height: 56px;
            }
            
            .nav-links {
                top: 56px;
                max-height: calc(100vh - 56px);
            }
            
            .menu-toggle {
                left: 15px;
            }
        }

        /* ===== Hero ===== */
        .hero{
            min-height:72vh;display:flex;align-items:center;position:relative;overflow:hidden;background-position:center;background-size:cover;
            background-image:linear-gradient(rgba(26, 86, 50, 0.7),rgba(42, 122, 75, 0.7)),url('https://images.unsplash.com/photo-1625246333195-78d9c38ad449?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80');
            transition:transform var(--transition-slow) var(--ease), background-position var(--transition-slow) var(--ease);
        }
        .hero .text-box{width:94%;max-width:960px;margin:0 auto;color:var(--white);text-align:center;padding:48px 18px;position:relative;z-index:2}
        .hero h1{font-size:48px;margin:6px 0;text-shadow:0 8px 30px rgba(0,0,0,.45);transition:transform .6s var(--ease)}
        .hero p{font-size:18px;margin:8px 0 20px;opacity:.95}
        .cta{display:inline-block;margin:8px;padding:12px 26px;border-radius:999px;border:2px solid rgba(255,255,255,.95);background:transparent;color:var(--white);font-weight:700;transition:all .32s var(--ease)}
        .cta:hover{transform:translateY(-4px);box-shadow:0 12px 30px rgba(0,0,0,.18);background:var(--accent);border-color: var(--accent);color: #333;}
        .cta.secondary{background:rgba(255,255,255,.15);border-color:transparent; color: white;}
        .cta.secondary:hover{background:var(--white); color: var(--dark);}

        /* hero overlay subtle */
        .hero::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 20% 40%, rgba(255,165,0,.06), transparent 8%),radial-gradient(circle at 80% 20%, rgba(70,130,180,.04), transparent 8%);pointer-events:none;transition:transform var(--transition-med) var(--ease)}

        /* ===== Grid & Cards ===== */
        .row{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
        .card{background:var(--panel);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;transition:transform .36s var(--ease),box-shadow .36s var(--ease),background .36s var(--ease); border: 1px solid rgba(0,0,0,0.05);}
        .card:hover{transform:translateY(-8px);box-shadow:0 18px 40px rgba(15,23,42,.12)}
        .card img{height:200px;object-fit:cover;width:100%}
        .inner{padding:18px}
        .card h3{color:var(--primary);margin:8px 0;font-size:18px}
        .card p{color:var(--muted);font-size:15px}

        /* ===== News cards ===== */
        .news-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:18px}
        .news-card{border-radius:12px;background:var(--panel);box-shadow:var(--shadow);overflow:hidden;transition:transform .36s var(--ease);will-change:transform; border: 1px solid rgba(0,0,0,0.05);}
        .news-card .card-image{height:200px;position:relative;overflow:hidden}
        .news-card .card-image img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
        .news-card:hover .card-image img{transform:scale(1.05)}
        .card-date{position:absolute;left:12px;top:12px;background:var(--primary);color:var(--white);padding:6px 12px;border-radius:20px;font-size:13px; font-weight: 600;}
        .card-content{padding:16px}
        .read-more{color:var(--primary);font-weight:700; display: inline-block; transition: all 0.3s var(--ease);}
        .read-more:hover{color: var(--accent); transform: translateX(4px);}

        /* ===== Enhanced animations ===== */
        .section-header {
            text-align: center;
            margin-bottom: 48px;
            opacity: 0;
            transform: translateY(30px);
            transition: all 0.8s var(--ease);
        }
        
        .section-header.visible {
            opacity: 1;
            transform: translateY(0);
        }
        
        .section-header h2 {
            font-size: 32px;
            margin-bottom: 12px;
            color: var(--primary);
            position: relative;
            display: inline-block;
        }
        
        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
            transition: width 0.5s var(--ease);
        }
        
        .section-header.visible h2::after {
            width: 100px;
        }
        
        .section-header p {
            color: var(--muted);
            max-width: 600px;
            margin: 0 auto;
        }
        
        /* Enhanced card animations */
        .card, .news-card {
            position: relative;
            overflow: hidden;
            opacity: 0;
            transform: translateY(30px);
            transition: all 0.6s var(--ease);
        }
        
        .card.visible, .news-card.visible {
            opacity: 1;
            transform: translateY(0);
        }
        
        .card::before, .news-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, var(--primary) 0%, transparent 70%);
            opacity: 0;
            transition: opacity 0.4s var(--ease);
            z-index: 1;
            pointer-events: none;
        }
        
        .card:hover::before, .news-card:hover::before {
            opacity: 0.05;
        }
        
        /* Enhanced button styles */
        .btn {
            display: inline-block;
            padding: 10px 20px;
            background: var(--primary);
            color: var(--white);
            border-radius: var(--radius);
            font-weight: 600;
            transition: all 0.3s var(--ease);
            border: none;
            cursor: pointer;
            text-align: center;
            opacity: 0;
            transform: translateY(20px);
        }
        
        .btn.visible {
            opacity: 1;
            transform: translateY(0);
        }
        
        .btn:hover {
            background: var(--dark);
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.12);
        }
        
        .btn.primary {
            background: var(--primary);
        }
        
        .btn.secondary {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
        }
        
        .btn.secondary:hover {
            background: var(--primary);
            color: var(--white);
        }
        
        /* Progress indicator */
        .scroll-progress {
            position: fixed;
            top: 0;
            left: 0;
            width: 0%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            z-index: 2000;
            transition: width 0.2s ease;
        }
        
        /* Enhanced alignment for implementation agencies */
        .sites .row {
            align-items: stretch;
        }
        
        .sites .card {
            display: flex;
            flex-direction: column;
            justify-content: center;
            height: 100%;
            text-align: center;
            transition: all 0.4s var(--ease);
        }
        
        .sites .card:hover {
            background: rgba(46, 139, 87, 0.05);
        }
        
        /* Enhanced hero animations */
        .hero h1 {
            opacity: 0;
            transform: translateY(30px);
            animation: fadeInUp 1s var(--ease) 0.2s forwards;
        }
        
        .hero p {
            opacity: 0;
            transform: translateY(30px);
            animation: fadeInUp 1s var(--ease) 0.4s forwards;
        }
        
        .hero .cta {
            opacity: 0;
            transform: translateY(30px);
            animation: fadeInUp 1s var(--ease) 0.6s forwards;
        }
        
        @keyframes fadeInUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        /* Enhanced parallax effect */
        .parallax {
            transform: translateY(0);
            transition: transform 0.3s ease-out;
        }

        /* ===== Footer ===== */
        footer{
            background: linear-gradient(135deg, var(--dark), var(--primary));
            color: var(--white);
            padding: 56px 0 28px;
            position: relative;
            overflow: hidden;
        }
        footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(circle at 20% 80%, rgba(255,255,255,0.05) 0%, transparent 50%),
                        radial-gradient(circle at 80% 20%, rgba(255,165,0,0.03) 0%, transparent 50%);
            pointer-events: none;
        }
        .footer-grid{
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 24px;
            position: relative;
            z-index: 2;
        }
        .social-links a{
            display: inline-flex;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            background: rgba(255,255,255,.1);
            color: var(--white);
            text-decoration: none;
            margin-right: 8px;
            transition: all 0.3s var(--ease);
            border: 1px solid rgba(255,255,255,0.1);
        }
        .social-links a:hover{
            transform: translateY(-4px);
            background: var(--accent);
            box-shadow: 0 6px 15px rgba(0,0,0,0.2);
            color: #333;
        }
        .newsletter-form{
            display: flex;
            gap: 0;
            margin-top: 10px;
            border-radius: 6px;
            overflow: hidden;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .newsletter-form input{
            padding: 12px 15px;
            border-radius: 6px 0 0 6px;
            border: none;
            outline: none;
            background: rgba(255,255,255,.15);
            color: var(--white);
            min-width: 0;
            flex: 1;
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255,255,255,0.1);
            border-right: none;
            transition: all 0.3s var(--ease);
        }
        .newsletter-form input:focus {
            background: rgba(255,255,255,.2);
            box-shadow: 0 0 0 2px rgba(255,255,255,0.2);
        }
        .newsletter-form input::placeholder {
            color: rgba(255,255,255,0.7);
        }
        .newsletter-form button{
            padding: 0 20px;
            border-radius: 0 6px 6px 0;
            border: none;
            background: var(--accent);
            color: #111;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.3s var(--ease);
            border: 1px solid rgba(255,255,255,0.1);
            border-left: none;
        }
        .newsletter-form button:hover{
            background: var(--accent);
            transform: translateX(2px);
            filter: brightness(1.1);
        }

        .footer-bottom{
            border-top: 1px solid rgba(255,255,255,.15);
            padding-top: 24px;
            margin-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
            position: relative;
            z-index: 2;
        }
        .footer-bottom a{
            color: rgba(255,255,255,.8);
            text-decoration: none;
            transition: all 0.3s var(--ease);
            padding: 5px 10px;
            border-radius: 4px;
        }
        .footer-bottom a:hover{
            color: var(--accent);
            background: rgba(255,255,255,.1);
            transform: translateY(-2px);
        }

        /* Footer animations */
        footer .footer-grid > div {
            opacity: 0;
            transform: translateY(20px);
            transition: all 0.6s var(--ease);
        }

        footer .footer-grid > div.visible {
            opacity: 1;
            transform: translateY(0);
        }

        footer .footer-grid > div:nth-child(1) { transition-delay: 0.1s; }
        footer .footer-grid > div:nth-child(2) { transition-delay: 0.2s; }
        footer .footer-grid > div:nth-child(3) { transition-delay: 0.3s; }
        footer .footer-grid > div:nth-child(4) { transition-delay: 0.4s; }

        /* ===== Scroll to top ===== */
        .scroll-to-top{
            position:fixed;
            right:22px;
            bottom:22px;
            width:46px;
            height:46px;
            border-radius:50%;
            background:var(--primary);
            display:flex;
            align-items:center;
            justify-content:center;
            color:var(--white);
            box-shadow:var(--shadow);
            cursor:pointer;
            opacity:0;
            visibility:hidden;
            transition:all .28s var(--ease);
            z-index:1400
        }
        .scroll-to-top.show{
            opacity:1;
            visibility:visible;
            transform:translateY(0)
        }
        .scroll-to-top:hover{
            transform:translateY(-4px);
            background: var(--accent);
            color: #333;
        }
        
        /* prefers-reduced-motion */
        @media (prefers-reduced-motion:reduce) {
            .hero::before,.card,.news-card,.nav-links a,.cta,.social-links a,.brand img{transition:none!important}
            .reveal,.reveal-zoom{transition:none!important;transform:none!important;opacity:1!important}
            .section-header, .card, .news-card, .btn { transition: none !important; opacity: 1 !important; transform: none !important; }
            footer .footer-grid > div { transition: none !important; opacity: 1 !important; transform: none !important; }
        }

        /* ===== Responsive ===== */
        @media (max-width:900px){
            .brand img{height:52px}
            .hero h1{font-size:36px}
            .header-controls{order:3}
            .section-header h2 { font-size: 28px; }
        }
        @media (max-width:520px){
            .contact-items{width:100%;justify-content:center}
            .hero{min-height:56vh}
            .hero h1{font-size:28px}
            .section-header h2 { font-size: 24px; }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* focus for keyboard users */
        a:focus,button:focus,input:focus{outline:3px solid rgba(46,139,87,.14);outline-offset:2px}