:root {
            --primary: #4CAF50;
            --primary-dark: #45a049;
            --secondary: #FF9800;
            --secondary-dark: #F57C00;
            --dark: #1a1a1a;
            --light: #f8f9fa;
            --gray: #6c757d;
            --body-color: #333;
            --transition: all 0.3s ease;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        html, body {
            width: 100%;
            overflow-x: hidden; /* Prevent horizontal scroll */
            position: relative;
        }
        
        body {
            font-family: 'Inter', sans-serif;
            color: var(--body-color);
            line-height: 1.6;
            overflow-x: hidden;
            background-color: #fff;
        }
        
        h1, h2, h3, h4, h5, h6 {
            font-family: 'Poppins', sans-serif;
            font-weight: 700;
            margin-bottom: 1rem;
            color:#000;
        }
        
        .all-h2 {
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
            position: relative;
            padding-bottom: 15px;
        }
        
        .all-h2:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 4px;
            background: linear-gradient(45deg, var(--primary), var(--secondary));
            border-radius: 2px;
        }
        
        .all-h4 {
            font-size: 1.5rem;
            margin-bottom: 1rem;
            color: var(--primary-dark);
        }
        
        p {
            margin-bottom: 1.5rem;
            font-size: 1.05rem;
        }
        
        a {
            text-decoration: none;
            color: var(--primary);
            transition: var(--transition);
        }
        
        a:hover {
            color: var(--primary-dark);
        }
        
        .btn {
            padding: 12px 24px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }
        
        .btn-primary {
            background: linear-gradient(45deg, var(--primary), var(--primary-dark));
            border: none;
        }
        
        .btn-primary:hover {
            background: linear-gradient(45deg, var(--primary-dark), var(--primary));
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        
        .btn-success {
            background: linear-gradient(45deg, var(--primary), var(--primary-dark));
            border: none;
        }
        
        .btn-warning {
            background: linear-gradient(45deg, var(--secondary), var(--secondary-dark));
            border: none;
            color: white;
        }
        
        .btn-outline-light {
            border: 2px solid rgba(255,255,255,0.3);
            color: white;
        }
        
        .btn-outline-light:hover {
            background: rgba(255,255,255,0.1);
            color: white;
        }
        
        .section-padding {
            padding: 80px 0;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }
        
        .section-title .all-h2:after {
            left: 50%;
            transform: translateX(-50%);
        }
        
        /* Header Styles - FIXED */
        .site_header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            max-width: 100vw;
            z-index: 1000;
            background: rgba(26, 26, 26, 0.95);
            backdrop-filter: blur(10px);
            transition: var(--transition);
            overflow: hidden;
        }
        
        .site_header.scrolled {
            box-shadow: 0 5px 20px rgba(0,0,0,0.1);
        }
        
        .nav_wrapper {
            padding: 15px 0;
            width: 100%;
            max-width: 100%;
            margin: 0 auto;
        }
        
        .site_logo img {
            max-height: 45px;
            width: auto;
        }
        
        .main_menu_list {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        
        .main_menu_list li {
            margin: 0 5px;
        }
        
        .main_menu_list .nav-link {
            color: white !important;
            font-weight: 500;
            padding: 10px 15px !important;
            border-radius: 50px;
            transition: var(--transition);
        }
        
        .main_menu_list .nav-link:hover, 
        .main_menu_list .nav-link.active {
            background: rgba(255,255,255,0.1);
        }
        
        .mobile_menu_btn {
            color: white;
            font-size: 1.5rem;
            background: none;
            border: none;
            padding: 5px 10px;
            display: none;
        }
        
        /* Mobile Navigation */
        .mobile-nav {
            position: fixed;
            top: 0;
            right: -100%;
            width: 80%;
            max-width: 300px;
            height: 100vh;
            background: var(--dark);
            z-index: 1001;
            transition: var(--transition);
            padding: 80px 20px 30px;
            overflow-y: auto;
        }
        
        .mobile-nav.open {
            right: 0;
            box-shadow: -5px 0 25px rgba(0,0,0,0.15);
        }
        
        .mobile-nav .main_menu_list {
            flex-direction: column;
            align-items: flex-start;
        }
        
        .mobile-nav .main_menu_list li {
            margin: 5px 0;
            width: 100%;
        }
        
        .mobile-nav .main_menu_list .nav-link {
            display: block;
            padding: 15px !important;
            border-radius: 8px;
        }
        
        .mobile-nav-close {
            position: absolute;
            top: 20px;
            right: 20px;
            color: white;
            font-size: 1.5rem;
            background: none;
            border: none;
        }
        
        .overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.5);
            z-index: 1000;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
        }
        
        .overlay.active {
            opacity: 1;
            visibility: visible;
        }
        
        /* Hero Section */
        .hero-section {
            position: relative;
            padding: 160px 0 100px;
            background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
            color: white;
            overflow: hidden;
        }
        
        .hero-bg-video {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            overflow: hidden;
            z-index: 1;
        }
        
        .hero-bg-video video {
            min-width: 100%;
            min-height: 100%;
            object-fit: cover;
            opacity: 0.3;
        }
        
        .hero-section .container {
            position: relative;
            z-index: 2;
        }
        
        .hero_title {
            font-size: 3rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        
        .hero-left {
            padding-right: 30px;
        }
        
        /* About Section */
        .about-section {
            position: relative;
            overflow: hidden;
        }
        
        .about-thumbnail {
            position: relative;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(0,0,0,0.1);
        }
        
        .about-thumbnail img {
            width: 100%;
            height: auto;
        }
        
        .sisf-our-work {
            display: flex;
            align-items: flex-start;
            margin-bottom: 30px;
        }
        
        .sisf-layout--circle {
            min-width: 60px;
            height: 60px;
            border-radius: 50%;
            background: linear-gradient(45deg, var(--primary), var(--primary-dark));
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 20px;
            color: white;
            font-size: 1.5rem;
        }
        
        /* Services Section */
        .services-section {
            background: #f8f9fa;
            position: relative;
        }
        
        .service-card {
            background: white;
            border-radius: 10px;
            padding: 30px;
            margin-bottom: 30px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
            transition: var(--transition);
            height: 100%;
        }
        
        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0,0,0,0.1);
        }
        
        .service-icon {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 20px;
        }
        
        /* Features Section */
        .features-section {
            position: relative;
        }
        
        .feature-list {
            list-style: none;
            padding: 0;
        }
        
        .feature-list li {
            padding: 15px 0;
            border-bottom: 1px solid #eee;
            display: flex;
            align-items: flex-start;
        }
        
        .feature-list li:last-child {
            border-bottom: none;
        }
        
        .feature-icon {
            color: var(--primary);
            margin-right: 15px;
            font-size: 1.2rem;
            margin-top: 5px;
        }
        
        /* Why Choose Section */
        .why-choose-section {
            background: #f8f9fa;
        }
        
        .reason-card {
            background: white;
            border-radius: 10px;
            padding: 30px;
            margin-bottom: 30px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
            transition: var(--transition);
            height: 100%;
            text-align: center;
        }
        
        .reason-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0,0,0,0.1);
        }
        
        .reason-icon {
            font-size: 3rem;
            color: var(--primary);
            margin-bottom: 20px;
        }
        
        /* FAQ Section */
        .faq-section {
            position: relative;
        }
        
        .accordion-item {
            border: none;
            margin-bottom: 15px;
            border-radius: 10px !important;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        
        .accordion-button {
            padding: 20px;
            font-weight: 600;
            background: white;
            border: none;
            box-shadow: none;
        }
        
        .accordion-button:not(.collapsed) {
            background: linear-gradient(45deg, var(--primary), var(--primary-dark));
            color: white;
        }
        
        .accordion-body {
            padding: 20px;
        }
        
        /* Footer */
        footer {
            background: var(--dark);
            color: white;
            padding: 80px 0 30px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 50px;
        }
        
        .footer-column h3 {
            color: white;
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 15px;
        }
        
        .footer-column h3:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 3px;
            background: linear-gradient(45deg, var(--primary), var(--secondary));
            border-radius: 2px;
        }
        
        .footer-links {
            list-style: none;
            padding: 0;
        }
        
        .footer-links li {
            margin-bottom: 12px;
        }
        
        .footer-links a {
            color: rgba(255,255,255,0.7);
            transition: var(--transition);
        }
        
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        
        .social-links {
            display: flex;
            gap: 15px;
            margin-top: 20px;
        }
        
        .social-links a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            transition: var(--transition);
        }
        
        .social-links a:hover {
            background: var(--primary);
            transform: translateY(-3px);
        }
        
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: rgba(255,255,255,0.7);
        }
        
        /* Back to Top */
        .backtotop {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
        }
        
        .backtotop.active {
            opacity: 1;
            visibility: visible;
        }
        
        .backtotop a {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--primary);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        
        /* Preloader */
        #preloader {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: white;
            z-index: 9999;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        #preloader div {
            width: 15px;
            height: 15px;
            background: var(--primary);
            border-radius: 50%;
            margin: 0 5px;
            animation: loader 1s infinite alternate;
        }
        
        #preloader div:nth-child(2) {
            animation-delay: 0.2s;
        }
        
        #preloader div:nth-child(3) {
            animation-delay: 0.4s;
        }
        
        #preloader div:nth-child(4) {
            animation-delay: 0.6s;
        }
        
        @keyframes loader {
            0% { transform: translateY(0); }
            100% { transform: translateY(-20px); }
        }
        
        /* Responsive Styles */
        @media (max-width: 1199.98px) {
            .hero_title {
                font-size: 2.5rem;
            }
            
            .all-h2 {
                font-size: 2.2rem;
            }
        }
        
        @media (max-width: 991.98px) {
            .section-padding {
                padding: 60px 0;
            }
            
            .hero_title {
                font-size: 2.2rem;
            }
            
            .hero-section {
                padding: 130px 0 80px;
            }
            
            .hero-left {
                padding-right: 0;
                margin-bottom: 40px;
                text-align: center;
            }
            
            .all-h2 {
                font-size: 2rem;
            }
            
            .mobile_menu_btn {
                display: block;
            }
            
            .desktop-menu {
                display: none;
            }
            
            /* Show mobile auth buttons on tablet and mobile */
            .mobile-auth-buttons {
                display: flex !important;
                align-items: center;
            }
            
            /* Hide desktop auth buttons on tablet and mobile */
            .desktop-auth-buttons {
                display: none !important;
            }
            
            /* Adjust header for mobile */
            .nav_wrapper {
                padding: 10px 0;
            }
            
            .site_logo img {
                max-height: 35px;
            }
        }
        
        @media (max-width: 767.98px) {
            .hero_title {
                font-size: 1.8rem;
            }
            
            .all-h2 {
                font-size: 1.8rem;
            }
            
            .all-h4 {
                font-size: 1.3rem;
            }
            
            .section-title .all-h2:after {
                left: 50%;
                transform: translateX(-50%);
            }
            
            .footer-content {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            
            .sisf-our-work {
                flex-direction: column;
                text-align: center;
            }
            
            .sisf-layout--circle {
                margin: 0 auto 15px;
            }
            
            .service-card, .reason-card {
                padding: 20px;
            }
            
            .service-icon, .reason-icon {
                font-size: 2rem;
                margin-bottom: 15px;
            }
            
            /* Mobile auth buttons adjustments */
            .mobile-auth-buttons .btn {
                padding: 8px 12px;
                font-size: 0.8rem;
                margin-right: 5px;
            }
            
            .mobile_menu_btn {
                font-size: 1.2rem;
                padding: 5px 8px;
            }
        }
        
        @media (max-width: 575.98px) {
            .hero_title {
                font-size: 1.6rem;
            }
            
            .all-h2 {
                font-size: 1.6rem;
                padding-bottom: 10px;
            }
            
            .all-h2:after {
                height: 3px;
                width: 50px;
            }
            
            .btn {
                padding: 10px 20px;
                font-size: 0.9rem;
            }
            
            .site_logo img {
                max-height: 30px;
            }
            
            .nav_wrapper {
                padding: 8px 0;
            }
            
            .hero-section {
                padding: 100px 0 60px;
            }
            
            .section-padding {
                padding: 50px 0;
            }
            
            .hero-buttons {
                display: flex;
                flex-direction: column;
                gap: 10px;
            }
            
            .hero-buttons .btn {
                width: 100%;
                justify-content: center;
            }
            
            /* Mobile auth buttons for very small screens */
            .mobile-auth-buttons {
                flex-wrap: wrap;
                justify-content: flex-end;
            }
            
            .mobile-auth-buttons .btn {
                padding: 6px 10px;
                font-size: 0.75rem;
                margin-right: 3px;
            }
            
            .mobile_menu_btn {
                font-size: 1.1rem;
                padding: 4px 6px;
            }
            
            .feature-list li {
                flex-direction: column;
                text-align: center;
            }
            
            .feature-icon {
                margin-right: 0;
                margin-bottom: 10px;
            }
            
            .accordion-button {
                padding: 15px;
                font-size: 0.95rem;
            }
            
            .accordion-body {
                padding: 15px;
            }
        }
        
        /* Hide mobile auth buttons on desktop */
        @media (min-width: 992px) {
            .mobile-auth-buttons {
                display: none !important;
            }
            
            .desktop-auth-buttons {
                display: flex !important;
            }
        }