/* Base Styles */
        :root {
            --primary: #1a73e8;
            --primary-dark: #0d47a1;
            --secondary: #e8f4fd;
            --accent: #ff6b35;
            --text: #333;
            --light: #f8f9fa;
            --dark: #212529;
            --gray: #6c757d;
            --success: #28a745;
            --danger: #dc3545;
            --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }

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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--text);
            background-color: var(--light);
            overflow-x: hidden;
        }

        h1, h2, h3, h4 {
            margin-bottom: 1rem;
            line-height: 1.2;
        }

        p {
            margin-bottom: 1rem;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

        ul {
            list-style: none;
        }

        img {
            max-width: 100%;
            height: auto;
        }

        .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }

        .btn {
            display: inline-block;
            padding: 12px 24px;
            background-color: var(--primary);
            color: white;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
            text-align: center;
        }

        .btn:hover {
            background-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
        }

        .btn-accent {
            background-color: var(--accent);
        }

        .btn-accent:hover {
            background-color: #e55a2b;
        }

        .btn-outline {
            background-color: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
        }

        .btn-outline:hover {
            background-color: var(--primary);
            color: white;
        }

        .section {
            padding: 80px 0;
        }

        .section-title {
            text-align: center;
            margin-bottom: 3rem;
            position: relative;
        }

        .section-title:after {
            content: '';
            display: block;
            width: 80px;
            height: 4px;
            background-color: var(--primary);
            margin: 10px auto;
        }

        .text-center {
            text-align: center;
        }

        /* Header Styles */
        header {
            background-color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
            transition: var(--transition);
        }

        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }

        .logo {
            display: flex;
            align-items: center;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
        }

        .logo img {
            margin-right: 10px;
            width: 70px;
            height: 70px;
        }

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

        .nav-menu li {
            margin-left: 2rem;
            position: relative;
        }

        .nav-menu > li > a {
            font-weight: 600;
            transition: var(--transition);
            position: relative;
            display: flex;
            align-items: center;
        }

        .nav-menu > li > a:after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary);
            transition: var(--transition);
        }

        .nav-menu > li > a:hover:after {
            width: 100%;
        }

        /* Dropdown Menu Styles */
        .dropdown {
            position: relative;
        }

        .dropdown > a {
            display: flex;
            align-items: center;
        }

        .dropdown > a:after {
            content: '\f078';
            font-family: 'Font Awesome 5 Free';
            font-weight: 900;
            margin-left: 8px;
            font-size: 0.8rem;
            transition: var(--transition);
        }

        .dropdown:hover > a:after {
            transform: rotate(180deg);
        }

        .dropdown-menu {
            position: absolute;
            top: 100%;
            left: 0;
            background-color: white;
            min-width: 220px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            border-radius: 4px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: var(--transition);
            z-index: 1000;
        }

        .dropdown:hover .dropdown-menu {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .dropdown-menu li {
            margin: 0;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
        }

        .dropdown-menu li:last-child {
            border-bottom: none;
        }

        .dropdown-menu a {
            display: block;
            padding: 12px 20px;
            transition: var(--transition);
            color: var(--text);
        }

        .dropdown-menu a:hover {
            background-color: var(--secondary);
            color: var(--primary);
            padding-left: 25px;
        }

        /* Sub-dropdown Styles */
        .sub-dropdown {
            position: relative;
        }

        .sub-dropdown > a {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .sub-dropdown > a:after {
            content: '\f054';
            font-family: 'Font Awesome 5 Free';
            font-weight: 900;
            font-size: 0.7rem;
            transition: var(--transition);
        }

        .sub-dropdown:hover > a:after {
            transform: rotate(90deg);
        }

        .sub-dropdown-menu {
            position: absolute;
            top: 0;
            left: 100%;
            background-color: white;
            min-width: 200px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            border-radius: 4px;
            opacity: 0;
            visibility: hidden;
            transform: translateX(10px);
            transition: var(--transition);
        }

        .sub-dropdown:hover .sub-dropdown-menu {
            opacity: 1;
            visibility: visible;
            transform: translateX(0);
        }

        .mobile-toggle {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            z-index: 1001;
        }

        /* Hero Section */
        .hero {
            background: linear-gradient(rgba(226, 77, 66, 0), rgba(82, 210, 233, 0.829)), url('/image/frontbuilding.jpg');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            color: white;
            padding: 150px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
            min-height: 100vh;
            display: flex;
            align-items: center;
        }

        .hero-content {
            max-width: 800px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }

        .hero h1 {
            font-size: 3.5rem;
            margin-bottom: 1.5rem;
            opacity: 0;
            transform: translateY(30px);
            animation: floatIn 1s ease forwards 0.5s;
            text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
        }

        .hero p {
            font-size: 1.3rem;
            max-width: 700px;
            margin: 0 auto 2rem;
            opacity: 0;
            transform: translateY(30px);
            animation: floatIn 1s ease forwards 0.8s;
        }

        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 15px;
            flex-wrap: wrap;
            opacity: 0;
            transform: translateY(30px);
            animation: floatIn 1s ease forwards 1.1s;
        }

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

        /* Services Section */
        .services {
            background-color: white;
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .service-card {
            background-color: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 12px 20px rgba(0, 0, 0, 0.15);
        }

        .service-icon {
            background-color: var(--secondary);
            padding: 30px;
            text-align: center;
            font-size: 2.5rem;
            color: var(--primary);
        }

        .service-content {
            padding: 25px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }

        .service-content h3 {
            color: var(--primary);
        }

        .service-content .btn {
            margin-top: auto;
            align-self: flex-start;
        }

        /* About Section */
        .about {
            background-color: var(--secondary);
        }

        .about-container {
            display: flex;
            align-items: center;
            gap: 50px;
        }

        .about-content {
            flex: 1;
        }

        .about-image {
            flex: 1;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .about-image:hover {
            transform: scale(1.02);
        }

        /* Testimonials */
        .testimonials {
            background-color: white;
        }

        .testimonial-slider {
            max-width: 800px;
            margin: 0 auto;
            position: relative;
        }

        .testimonial {
            background-color: var(--light);
            padding: 30px;
            border-radius: 8px;
            text-align: center;
            box-shadow: var(--shadow);
            display: none;
        }

        .testimonial.active {
            display: block;
            animation: fadeIn 0.8s ease;
        }

        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }

        .testimonial-text {
            font-style: italic;
            margin-bottom: 20px;
            font-size: 1.1rem;
        }

        .testimonial-author {
            font-weight: 600;
            color: var(--primary);
        }

        .slider-controls {
            display: flex;
            justify-content: center;
            margin-top: 30px;
            gap: 10px;
        }

        .slider-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background-color: var(--gray);
            cursor: pointer;
            transition: var(--transition);
        }

        .slider-dot.active {
            background-color: var(--primary);
            transform: scale(1.2);
        }

        /* Appointment Section */
        .appointment {
            background: linear-gradient(rgba(26, 115, 232, 0.9), rgba(13, 71, 161, 0.9)), url('https://images.unsplash.com/photo-1576091160399-112ba8d25d1f?ixlib=rb-4.0.3&auto=format&fit=crop&w=1350&q=80');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            color: white;
            text-align: center;
        }

        .appointment-form {
            max-width: 600px;
            margin: 0 auto;
            background-color: rgba(255, 255, 255, 0.1);
            padding: 30px;
            border-radius: 8px;
            backdrop-filter: blur(5px);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
        }

        .form-group {
            margin-bottom: 20px;
            text-align: left;
        }

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
        }

        .form-control {
            width: 100%;
            padding: 12px;
            border: none;
            border-radius: 4px;
            background-color: rgba(255, 255, 255, 0.9);
            transition: var(--transition);
        }

        .form-control:focus {
            outline: none;
            box-shadow: 0 0 0 2px var(--primary);
        }

        /* Footer */
        footer {
            background-color: var(--dark);
            color: white;
            padding: 60px 0 20px;
        }

        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h3 {
            color: white;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-col h3:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 2px;
            background-color: var(--primary);
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--primary);
            padding-left: 5px;
        }

        .contact-info li {
            display: flex;
            align-items: flex-start;
            margin-bottom: 15px;
        }

        .contact-info i {
            margin-right: 10px;
            color: var(--primary);
            flex-shrink: 0;
            margin-top: 3px;
        }

        .social-links {
            display: flex;
            gap: 15px;
            margin-top: 20px;
        }

        .social-links a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            transition: var(--transition);
        }

        .social-links a:hover {
            background-color: var(--primary);
            transform: translateY(-3px);
        }

        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        /* Responsive Styles */
        @media (max-width: 1200px) {
            .hero h1 {
                font-size: 3rem;
            }
        }

        @media (max-width: 992px) {
            .about-container {
                flex-direction: column;
            }
            
            .hero h1 {
                font-size: 2.5rem;
            }
            
            .hero p {
                font-size: 1.2rem;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                position: fixed;
                top: 0;
                left: -100%;
                flex-direction: column;
                background-color: white;
                width: 80%;
                height: 100vh;
                text-align: left;
                box-shadow: var(--shadow);
                transition: var(--transition);
                padding: 100px 30px 30px;
                z-index: 999;
                overflow-y: auto;
            }

            .nav-menu.active {
                left: 0;
            }

            .nav-menu li {
                margin: 15px 0;
                width: 100%;
            }

            /* Mobile dropdown styles */
            .dropdown-menu {
                position: static;
                opacity: 1;
                visibility: visible;
                transform: none;
                box-shadow: none;
                background-color: transparent;
                margin-left: 20px;
                display: none;
            }

            .dropdown.active .dropdown-menu {
                display: block;
            }

            .sub-dropdown-menu {
                position: static;
                opacity: 1;
                visibility: visible;
                transform: none;
                box-shadow: none;
                background-color: transparent;
                margin-left: 20px;
                display: none;
            }

            .sub-dropdown.active .sub-dropdown-menu {
                display: block;
            }

            .dropdown > a:after,
            .sub-dropdown > a:after {
                content: '\f078';
                transform: none;
            }

            .dropdown.active > a:after {
                transform: rotate(180deg);
            }

            .sub-dropdown > a:after {
                content: '\f078';
            }

            .sub-dropdown.active > a:after {
                transform: rotate(180deg);
            }

            .mobile-toggle {
                display: block;
            }

            .hero {
                padding: 120px 0;
                min-height: 80vh;
                background-attachment: scroll;
            }

            .hero h1 {
                font-size: 2.2rem;
            }

            .hero p {
                font-size: 1.1rem;
            }

            .section {
                padding: 60px 0;
            }
            
            .hero-btns {
                flex-direction: column;
                align-items: center;
            }
            
            .btn {
                width: 100%;
                max-width: 250px;
            }
        }

        @media (max-width: 576px) {
            .hero h1 {
                font-size: 1.8rem;
            }
            
            .hero p {
                font-size: 1rem;
            }
            
            .services-grid {
                grid-template-columns: 1fr;
            }
            
            .appointment-form {
                padding: 20px;
            }
            
            .footer-container {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 400px) {
            .hero h1 {
                font-size: 1.6rem;
            }
            
            .container {
                width: 95%;
            }
        }