:root {
            --primary-color: #1a73e8; 
            --secondary-color: #f0f7ff; 
            --accent-color: #00c4b4; 
            --highlight-color: #f4b400; 
            --text-color: #1a2b3c;
            --white: #ffffff;
            --box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
            --gradient: linear-gradient(135deg, var(--primary-color), var(--accent-color));
        }

        * {
            font-family: 'Inter', sans-serif;
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            outline: none;
            border: none;
            text-decoration: none;
            text-transform: capitalize;
            transition: all 0.3s ease;
        }

        html {
            font-size: 62.5%;
            overflow-x: hidden;
            scroll-behavior: smooth;
            scroll-padding-top: 12rem;
        }

        html::-webkit-scrollbar {
            width: 1rem;
        }

        html::-webkit-scrollbar-track {
            background: var(--secondary-color);
        }

        html::-webkit-scrollbar-thumb {
            background: var(--primary-color);
            border-radius: 5rem;
        }

        section {
            padding: 6rem 7%;
            opacity: 0;
            transform: translateY(30px);
            animation: fadeInUp 0.8s ease-out forwards;
        }

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

        .heading {
            font-family: 'Playfair Display', serif;
            font-size: 4.5rem;
            color: var(--primary-color);
            text-align: center;
            margin-bottom: 4rem;
            position: relative;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        }

        .heading::after {
            content: '';
            display: block;
            width: 12rem;
            height: 0.4rem;
            background: var(--gradient);
            margin: 1.2rem auto;
            border-radius: 5px;
        }

        .btn {
            display: inline-block;
            margin-top: 1.5rem;
            padding: 1.4rem 3.5rem;
            font-size: 1.7rem;
            font-weight: 600;
            font-family: 'Poppins', sans-serif;
            color: var(--white);
            background: var(--gradient);
            border-radius: 5rem;
            cursor: pointer;
            position: relative;
            overflow: hidden;
            z-index: 1;
            box-shadow: var(--box-shadow);
        }

        .btn:hover {
            transform: translateY(-5px) scale(1.05);
            background: var(--highlight-color);
        }

        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: var(--white);
            box-shadow: var(--box-shadow);
            padding: 2rem 7%;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .header .LOGO {
            font-family: 'Poppins', sans-serif;
            font-size: 3rem;
            font-weight: 800;
            color: var(--primary-color);
        }

        .header .LOGO i {
            color: var(--accent-color);
            margin-right: 0.6rem;
        }

        .header .navbar a {
            font-size: 1.8rem;
            color: var(--text-color);
            margin: 0 1.5rem;
            position: relative;
            font-family: 'Poppins', sans-serif;
        }

        .header .navbar a::after {
            content: '';
            position: absolute;
            bottom: -0.5rem;
            left: 0;
            width: 0;
            height: 0.3rem;
            background: var(--accent-color);
            transition: width 0.3s ease;
        }

        .header .navbar a:hover::after {
            width: 100%;
        }

        .header .icons div {
            font-size: 2.5rem;
            color: var(--text-color);
            cursor: pointer;
            margin-left: 2rem;
        }

        .header .icons div:hover {
            color: var(--accent-color);
            transform: rotate(360deg);
        }

        #menu-btn {
            display: none;
        }

        .home {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: url(../images/back.jpg) no-repeat center/cover fixed;
            position: relative;
            overflow: hidden;
        }

        .home::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.6);
            z-index: 1;
        }

        .home .content {
            position: relative;
            z-index: 2;
            max-width: 65rem;
            text-align: center;
            padding: 3rem;
            animation: slideIn 1.5s ease-out;
        }

        @keyframes slideIn {
            0% { opacity: 0; transform: translateY(50px); }
            100% { opacity: 1; transform: translateY(0); }
        }

        .home .content h3 {
            font-size: 6rem;
            color: var(--white);
            font-family: 'Playfair Display', serif;
            text-shadow: 0 3px 8px rgba(0, 0, 0, 0.4);
            line-height: 1.2;
        }

        .home .content p {
            font-size: 2rem;
            color: var(--secondary-color);
            line-height: 1.7;
            margin: 2rem 0;
            font-family: 'Inter', sans-serif;
        }

        .why-choose-us .box-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(28rem, 1fr));
            gap: 2.5rem;
            text-align: center;
        }

        .why-choose-us .box-container .box {
            background: var(--white);
            border-radius: 1.2rem;
            padding: 2.5rem;
            box-shadow: var(--box-shadow);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .why-choose-us .box-container .box:hover {
            transform: translateY(-10px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
        }

        .why-choose-us .box-container .box i {
            font-size: 4rem;
            color: var(--accent-color);
            margin-bottom: 1.2rem;
        }

        .why-choose-us .box-container .box h3 {
            font-size: 2.3rem;
            color: var(--primary-color);
            margin-bottom: 0.8rem;
        }

        .why-choose-us .box-container .box p {
            font-size: 1.5rem;
            color: var(--text-color);
            line-height: 1.7;
        }

        .about .container {
            display: flex;
            flex-wrap: wrap;
            gap: 3rem;
            align-items: center;
        }

        .about .container .about-image {
            flex: 1 1 45rem;
            position: relative;
        }

        .about .container .about-image img {
            width: 100%;
            border-radius: 1.5rem;
            box-shadow: var(--box-shadow);
        }

        .about .container .about-image .about-img {
            position: absolute;
            bottom: -10rem;
            right: 1.5rem;
            width: 22rem;
            border: 0.3rem solid var(--accent-color);
            border-radius: 1.2rem;
            padding: 1rem;
            background: var(--white);
            box-shadow: var(--box-shadow);
        }

        .about .container .about-content {
            flex: 1 1 45rem;
            padding: 3rem;
        }

        .about .container .about-content h3 {
            font-size: 4rem;
            color: var(--primary-color);
            font-family: 'Playfair Display', serif;
        }

        .about .container .about-content p {
            font-size: 1.7rem;
            color: var(--text-color);
            line-height: 1.9;
            margin: 1.5rem 0;
        }

        .demo-classes {
            background: var(--secondary-color);
            text-align: center;
        }

        .demo-classes .content p {
            font-size: 1.9rem;
            color: var(--text-color);
            line-height: 1.7;
            margin-bottom: 2.5rem;
        }

        .courses .box-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(32rem, 1fr));
            gap: 2.5rem;
        }

        .courses .box-container .box {
            background: var(--white);
            border-radius: 1.5rem;
            box-shadow: var(--box-shadow);
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .courses .box-container .box:hover {
            transform: translateY(-10px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
        }

        .courses .box-container .box .image {
            height: 28rem;
            overflow: hidden;
            position: relative;
        }

        .courses .box-container .box .image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .courses .box-container .box:hover .image img {
            transform: scale(1.1);
        }

        .courses .box-container .box .image h3 {
            position: absolute;
            top: 1.5rem;
            left: 1.5rem;
            background: var(--highlight-color);
            color: var(--white);
            padding: 0.7rem 2rem;
            border-radius: 0.7rem;
            font-size: 1.7rem;
        }

        .courses .box-container .box .content {
            padding: 2.5rem;
        }

        .courses .box-container .box .content h3 {
            font-size: 2.4rem;
            color: var(--primary-color);
            font-family: 'Poppins', sans-serif;
        }

        .courses .box-container .box .content p {
            font-size: 1.5rem;
            color: var(--text-color);
            margin: 0.8rem 0;
        }

        .courses .box-container .box .content .stars i {
            font-size: 1.6rem;
            color: var(--highlight-color);
        }

        .teacher .box-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(28rem, 1fr));
            gap: 2.5rem;
        }

        .teacher .box-container .box {
            background: var(--white);
            border-radius: 1.5rem;
            box-shadow: var(--box-shadow);
            overflow: hidden;
            text-align: center;
        }

        .teacher .box-container .box .image {
            position: relative;
            overflow: hidden;
        }

        .teacher .box-container .box .image img {
            width: 100%;
            height: 30rem;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .teacher .box-container .box:hover .image img {
            transform: scale(1.1);
        }

        .teacher .box-container .box .image .share {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(0, 0, 0, 0.8);
            padding: 1.5rem;
            display: flex;
            justify-content: center;
            gap: 1.5rem;
            opacity: 0;
            transform: translateY(100%);
            transition: all 0.3s ease;
        }

        .teacher .box-container .box:hover .image .share {
            opacity: 1;
            transform: translateY(0);
        }

        .teacher .box-container .box .image .share a {
            font-size: 2.2rem;
            color: var(--white);
            background: var(--primary-color);
            width: 4.5rem;
            height: 4.5rem;
            line-height: 4.5rem;
            border-radius: 50%;
        }

        .teacher .box-container .box .image .share a:hover {
            background: var(--accent-color);
            transform: scale(1.1);
        }

        .teacher .box-container .box .content {
            padding: 2.5rem;
        }

        .teacher .box-container .box .content h3 {
            font-size: 2.4rem;
            color: var(--primary-color);
            font-family: 'Poppins', sans-serif;
        }

        .teacher .box-container .box .content span {
            font-size: 1.6rem;
            color: var(--text-color);
            opacity: 0.8;
        }

        .success-stories .box-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(28rem, 1fr));
            gap: 2.5rem;
        }

        .success-stories .box-container .box {
            background: var(--white);
            border-radius: 1.5rem;
            box-shadow: var(--box-shadow);
            padding: 2.5rem;
            text-align: center;
        }

        .success-stories .box-container .box img {
            width: 9rem;
            height: 9rem;
            border-radius: 50%;
            object-fit: cover;
            margin-bottom: 1.5rem;
        }

        .success-stories .box-container .box h3 {
            font-size: 2.2rem;
            color: var(--primary-color);
        }

        .success-stories .box-container .box p {
            font-size: 1.5rem;
            color: var(--text-color);
            line-height: 1.7;
            margin: 1.2rem 0;
        }

        .review .swiper-slide {
            background: var(--white);
            border-radius: 1.5rem;
            box-shadow: var(--box-shadow);
            padding: 3.5rem;
            text-align: center;
        }

        .review .swiper-slide p {
            font-size: 1.7rem;
            color: var(--text-color);
            line-height: 1.9;
            margin-bottom: 2rem;
        }

        .review .swiper-slide .user {
            display: flex;
            align-items: center;
            gap: 2rem;
            margin-top: 2rem;
        }

        .review .swiper-slide .user img {
            width: 8rem;
            height: 8rem;
            border-radius: 50%;
            object-fit: cover;
            border: 0.3rem solid var(--accent-color);
        }

        .review .swiper-slide .user h3 {
            font-size: 2.2rem;
            color: var(--primary-color);
        }

        .review .swiper-slide .user .stars i {
            font-size: 1.6rem;
            color: var(--highlight-color);
        }

        .faq .accordion {
            max-width: 85rem;
            margin: 0 auto;
        }

        .faq .accordion-item {
            background: var(--white);
            border-radius: 1.2rem;
            margin-bottom: 1.5rem;
            box-shadow: var(--box-shadow);
        }

        .faq .accordion-item h3 {
            font-size: 2rem;
            color: var(--primary-color);
            padding: 2rem;
            cursor: pointer;
            position: relative;
            font-family: 'Poppins', sans-serif;
        }

        .faq .accordion-item h3::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            right: 2rem;
            font-size: 1.6rem;
            color: var(--accent-color);
        }

        .faq .accordion-item.active h3::after {
            content: '\f077';
        }

        .faq .accordion-item .content {
            display: none;
            font-size: 1.6rem;
            color: var(--text-color);
            padding: 0 2rem 2rem;
            line-height: 1.9;
        }

        .faq .accordion-item.active .content {
            display: block;
        }

        .contact .row {
            display: flex;
            flex-wrap: wrap;
            gap: 3rem;
            align-items: center;
        }

        .contact .row .image {
            flex: 1 1 45rem;
        }

        .contact .row .image iframe {
            width: 100%;
            height: 45rem;
            border-radius: 1.5rem;
            box-shadow: var(--box-shadow);
        }

        .contact .row form {
            flex: 1 1 45rem;
            padding: 3rem;
            background: var(--white);
            border-radius: 1.5rem;
            box-shadow: var(--box-shadow);
        }

        .contact .row form h3 {
            font-size: 3.2rem;
            color: var(--primary-color);
            margin-bottom: 1.5rem;
            font-family: 'Playfair Display', serif;
        }

        .contact .row form .box {
            width: 100%;
            padding: 1.4rem;
            font-size: 1.7rem;
            border: 0.2rem solid var(--primary-color);
            border-radius: 0.7rem;
            margin: 0.8rem 0;
            font-family: 'Inter', sans-serif;
        }

        .contact .row form textarea {
            height: 18rem;
            resize: none;
        }

        .contact .row form .form-message {
            font-size: 1.5rem;
            color: var(--accent-color);
            margin-top: 0.8rem;
            display: none;
        }

        .footer {
            background: var(--secondary-color);
            padding: 5rem 7%;
            text-align: center;
        }

        .footer .box-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(28rem, 1fr));
            gap: 3rem;
        }

        .footer .box-container .box h3 {
            font-size: 2.8rem;
            color: var(--primary-color);
            margin-bottom: 1.5rem;
            font-family: 'Poppins', sans-serif;
        }

        .footer .box-container .box p,
        .footer .box-container .box a {
            font-size: 1.7rem;
            color: var(--text-color);
            line-height: 1.9;
            margin: 0.6rem 0;
        }

        .footer .box-container .box .share a {
            font-size: 2.2rem;
            color: var(--primary-color);
            margin: 0 0.8rem;
            padding: 0.7rem;
            border-radius: 50%;
            border: 0.2rem solid var(--primary-color);
        }

        .footer .box-container .box .share a:hover {
            background: var(--primary-color);
            color: var(--white);
            transform: scale(1.1);
        }

        .footer .box-container .box form {
            display: flex;
            gap: 1.2rem;
            margin-top: 1.5rem;
        }

        .footer .box-container .box form input {
            padding: 1.2rem;
            font-size: 1.6rem;
            border: 0.2rem solid var(--primary-color);
            border-radius: 0.7rem;
            flex: 1;
        }

        .footer .box-container .box form button {
            padding: 1.2rem 2.5rem;
            font-size: 1.6rem;
            color: var(--white);
            background: var(--gradient);
            border-radius: 0.7rem;
        }

        .footer .box-container .box form button:hover {
            background: var(--highlight-color);
            transform: translateY(-3px);
        }

        .footer .credit {
            font-size: 2rem;
            color: var(--text-color);
            margin-top: 4rem;
            padding-top: 3rem;
            border-top: 0.2rem solid var(--primary-color);
        }

        .footer .credit span {
            color: var(--accent-color);
            font-weight: 600;
        }

        @media (max-width: 1200px) {
            html {
                font-size: 58%;
            }
            section {
                padding: 5rem 5%;
            }
        }

        @media (max-width: 991px) {
            html {
                font-size: 55%;
            }
            .header {
                padding: 1.8rem 4%;
            }
            section {
                padding: 4rem 4%;
            }
            .home .content h3 {
                font-size: 5rem;
            }
        }

        @media (max-width: 768px) {
            #menu-btn {
                display: inline-block;
            }
            .header .navbar {
                position: absolute;
                top: 100%;
                right: -100%;
                width: 30rem;
                background: var(--white);
                box-shadow: var(--box-shadow);
                border-radius: 1.2rem;
                transition: right 0.4s ease;
            }
            .header .navbar.active {
                right: 1.5rem;
            }
            .header .navbar a {
                display: block;
                margin: 2rem;
                font-size: 2.2rem;
            }
            .home .content h3 {
                font-size: 4rem;
            }
            .about .container .about-content {
                padding: 2.5rem 0;
            }
            .about .container .about-image .about-img {
                width: 18rem;
                bottom: -8rem;
            }
            .contact .row .image iframe {
                height: 35rem;
            }
        }

        @media (max-width: 450px) {
            html {
                font-size: 50%;
            }
            .home .content h3 {
                font-size: 3rem;
            }
            .home .content p {
                font-size: 1.8rem;
            }
            .contact .row .image iframe {
                height: 25rem;
            }
            .courses .box-container {
                grid-template-columns: 1fr;
            }
            .about .container .about-image .about-img {
                width: 15rem;
                bottom: -6rem;
            }
        }