/* RESET */

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            scroll-behavior: smooth;
            font-family: Arial, sans-serif;
        }

        body {
            background: #f8fff8;
            color: #222;
        }

        /* NAVBAR */

        header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: #0d7a46;
            padding: 15px 7%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }

        .logo-container {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .logo-container img {
            height: 50px;
            width: auto;
            border-radius: 11px;
        }

        .logo-container h2 {
            color: white;
            font-size: 22px;
            white-space: nowrap;
        }

        .logo {
            color: white;
            font-size: 26px;
            font-weight: bold;
        }

        nav ul {
            display: flex;
            list-style: none;
            gap: 25px;
        }

        nav ul li a {
            text-decoration: none;
            color: white;
            font-weight: bold;
            transition: 0.3s;
        }

        nav ul li a:hover {
            color: #ffe600;
        }

        .menu-btn {
            display: none;
            font-size: 28px;
            color: white;
            cursor: pointer;
        }

        /* HERO */

        .hero {
            min-height: 100vh;
            background:
                linear-gradient(rgba(0, 0, 0, 0.6),
                    rgba(0, 0, 0, 0.6)),
                url('https://images.unsplash.com/photo-1516321318423-f06f85e504b3?q=80&w=1600&auto=format&fit=crop');

            background-size: cover;
            background-position: center;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 20px;
            color: white;
        }

        .hero-content {
            max-width: 800px;
        }

        .hero h1 {
            font-size: 48px;
            margin-bottom: 20px;
        }

        .hero p {
            font-size: 18px;
            line-height: 1.8;
            margin-bottom: 30px;
        }

        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 15px;
            flex-wrap: wrap;
        }

        /* BUTTONS */

        .btn {
            padding: 14px 28px;
            border: none;
            border-radius: 5px;
            font-size: 16px;
            cursor: pointer;
            text-decoration: none;
            transition: 0.3s;
            font-weight: bold;
        }

        .btn-primary {
            background: #0d7a46;
            color: white;
        }

        .btn-primary:hover {
            background: #095c34;
        }

        .btn-secondary {
            background: white;
            color: #0d7a46;
        }

        .btn-secondary:hover {
            background: #ddd;
        }

        /* SECTIONS */

        section {
            padding: 80px 7%;
        }

        .section-title {
            text-align: center;
            font-size: 38px;
            color: #0d7a46;
            margin-bottom: 50px;
        }

        /* ABOUT */

        .about {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 40px;
            align-items: center;
        }

        .about img {
            width: 100%;
            border-radius: 10px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
        }

        .about-text h3 {
            font-size: 30px;
            margin-bottom: 20px;
            color: #0d7a46;
        }

        .about-text p {
            line-height: 1.8;
            margin-bottom: 15px;
        }

        /* COURSES */

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

        .course-card {
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
            transition: 0.3s;
        }

        .course-card:hover {
            transform: translateY(-10px);
        }

        .course-card img {
            width: 100%;
            height: 220px;
            object-fit: cover;
        }

        .course-content {
            padding: 25px;
        }

        .course-content h3 {
            color: #0d7a46;
            margin-bottom: 15px;
            font-size: 26px;
        }

        .course-content p {
            line-height: 1.7;
            margin-bottom: 12px;
        }

        .price {
            font-size: 28px;
            color: #0d7a46;
            font-weight: bold;
            margin: 15px 0;
        }

        .old-price {
            text-decoration: line-through;
            color: red;
            font-size: 18px;
            margin-left: 10px;
        }

        ul.topics {
            margin: 15px 0;
            padding-left: 20px;
        }

        ul.topics li {
            margin-bottom: 8px;
            line-height: 1.6;
        }

        /* FEATURES */

        .features {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 25px;
        }

        .feature-box {
            background: white;
            padding: 30px 20px;
            text-align: center;
            border-radius: 10px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
            transition: 0.3s;
        }

        .feature-box:hover {
            background: #0d7a46;
            color: white;
            transform: translateY(-8px);
        }

        .feature-box h3 {
            margin-bottom: 15px;
            font-size: 22px;
        }

        /* CONTACT */

        .contact-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 40px;
        }

        .contact-info,
        .contact-form {
            background: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
        }

        .contact-info h3 {
            color: #0d7a46;
            margin-bottom: 20px;
            font-size: 28px;
        }

        .contact-info p {
            margin-bottom: 15px;
            line-height: 1.8;
        }

        .contact-form input,
        .contact-form textarea {
            width: 100%;
            padding: 14px;
            margin-bottom: 15px;
            border: 1px solid #ccc;
            border-radius: 5px;
            outline: none;
        }

        .contact-form button {
            width: 100%;
        }

        /* FOOTER */

        footer {
            background: #0d7a46;
            color: white;
            text-align: center;
            padding: 20px;
            margin-top: 50px;
        }

        /* WHATSAPP */

        .whatsapp {
            position: fixed;
            bottom: 20px;
            right: 20px;
            background: #25D366;
            color: white;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            font-size: 32px;
            text-decoration: none;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
            z-index: 999;
        }

        /* MOBILE */

        @media (max-width: 768px) {

            .hero {
                min-height: 50vh;
            }

            .hero h1 {
                font-size: 34px;
            }

            .hero p {
                font-size: 16px;
            }

            .logo-container h2 {
                font-size: 18px;
            }

            .stat-card {
                width: 100%;
                max-width: 320px;
                height: 180px;
            }

            .stat-card h2 {
                font-size: 48px;
            }

            .stat-card p {
                font-size: 18px;
            }

            nav ul {
                position: absolute;
                top: 80px;
                left: -100%;
                width: 100%;
                background: #0d7a46;
                flex-direction: column;
                text-align: center;
                padding: 20px 0;
                transition: 0.4s;
            }

            nav ul.active {
                left: 0;
            }

            .menu-btn {
                display: block;
            }

            .section-title {
                font-size: 30px;
            }
        }