/* --- CSS STYLES --- */
        
        /* 1. General & Variables */
        :root {
            --primary-color: #007bff;
            --secondary-color: #00c6a7;
            --dark-color: #333;
            --light-color: #f4f4f4;
            --text-color: #555;
            --container-padding: 90px 20px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Poppins', sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            background: #fff;
        }

        .container {
            max-width: 1200px;
            margin: auto;
            overflow: hidden;
            padding: 0 20px;
        }
        
        section {
            padding: var(--container-padding);
        }

        h1, h2, h3 {
            color: var(--dark-color);
            margin-bottom: 20px;
        }
        
        h2 {
            font-size: 2.5rem;
            text-align: center;
        }

        .btn {
            display: inline-block;
            background: var(--primary-color);
            color: #fff;
            padding: 12px 25px;
            border: none;
            border-radius: 5px;
            text-decoration: none;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .btn:hover {
            background: #0056b3;
            transform: translateY(-2px);
        }
        
        .btn-secondary {
            background: var(--secondary-color);
        }
        .btn-secondary:hover {
            background: #009d82;
        }

        /* 2. Header & Navigation */
        #main-header {
            background: #fff;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            padding: 15px 0;
        }

        #main-header .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        #main-header .logo {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary-color);
            text-decoration: none;
        }
        
        #main-header .logo i {
            margin-right: 8px;
        }

        #main-nav ul {
            list-style: none;
            display: flex;
        }

        #main-nav ul li {
            margin-left: 25px;
        }

        #main-nav ul li a {
            text-decoration: none;
            color: var(--dark-color);
            font-weight: 600;
            transition: color 0.3s ease;
        }

        #main-nav ul li a:hover {
            color: var(--primary-color);
        }
        
        .hamburger {
            display: none;
            cursor: pointer;
            font-size: 1.8rem;
        }

        /* 3. Hero Section */
        #hero {
            background: linear-gradient(rgba(0, 123, 255, 0.7), rgba(0, 123, 255, 0.7)), url('../img/hero.jpg') no-repeat center center/cover;
            color: #fff;
            height: 90vh;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            text-align: center;
            padding: 0 20px;
        }

        #hero h1 {
            font-size: 3.5rem;
            margin-bottom: 20px;
            color: #fff;
        }

        #hero p {
            font-size: 1.5rem;
            margin-bottom: 30px;
        }

        /* 4. Sections Styling */
        
        /* About Section */
        #about .about-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        #about img {
            width: 100%;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }

        /* Services Section */
        #services {
            background: var(--light-color);
        }
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }

        .service-card {
            background: #fff;
            padding: 30px;
            text-align: center;
            border-radius: 10px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        
        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 8px 25px rgba(0,0,0,0.12);
        }

        .service-card i {
            font-size: 3rem;
            color: var(--primary-color);
            margin-bottom: 15px;
        }

        /* Why Choose Us Section */
        .why-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }

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

        .why-item i {
            font-size: 2.5rem;
            color: var(--secondary-color);
            margin-bottom: 10px;
        }

        /* Health Plans Section */
        #plans {
            background: var(--light-color);
        }
        
        .plans-grid {
             display: grid;
             grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
             gap: 30px;
             margin-top: 40px;
        }
        
        .plan-card {
            background: #fff;
            border: 1px solid #ddd;
            border-radius: 10px;
            text-align: center;
            padding: 30px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        
        .plan-card.popular {
            border: 2px solid var(--primary-color);
            transform: scale(1.05);
        }
        
        .plan-card h3 {
            font-size: 1.5rem;
            color: var(--primary-color);
        }
        
        .plan-card .price {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--dark-color);
            margin: 10px 0;
        }
        
        .plan-card .price span {
            font-size: 1rem;
            font-weight: 300;
        }
        
        .plan-card ul {
            list-style: none;
            margin: 20px 0;
        }
        
        .plan-card ul li {
            padding: 10px 0;
            border-bottom: 1px solid #eee;
        }
        
        .plan-card ul li:last-child {
            border-bottom: none;
        }
       
        /* Contact & Appointment Section */
        .contact-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 50px;
            margin-top: 40px;
        }
        
        .form-group {
            margin-bottom: 20px;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 5px;
            font-weight: 600;
        }
        
        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 12px;
            border: 1px solid #ccc;
            border-radius: 5px;
            font-family: 'Poppins', sans-serif;
        }
        
        .contact-info {
            background: var(--light-color);
            padding: 30px;
            border-radius: 10px;
        }
        
        .contact-info h3 {
            color: var(--primary-color);
        }
        
        .contact-info p {
            margin-bottom: 15px;
        }
        
        .contact-info i {
            color: var(--primary-color);
            margin-right: 10px;
        }

        /* Testimonials Section */
        #testimonials {
            background: var(--light-color);
        }

        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }

        .testimonial-card {
            background: #fff;
            padding: 30px;
            border-radius: 10px;
            border-left: 5px solid var(--secondary-color);
            box-shadow: 0 4px 15px rgba(0,0,0,0.08);
        }

        .testimonial-card p.quote {
            font-style: italic;
            margin-bottom: 15px;
        }

        .testimonial-card p.author {
            font-weight: 600;
            text-align: right;
            color: var(--dark-color);
        }

        /* 5. Footer and Newsletter */
        #newsletter {
            background: var(--primary-color);
            color: #fff;
            text-align: center;
        }
        #newsletter h2, #newsletter p {
            color: #fff;
        }
        
        #newsletter-form {
            margin-top: 30px;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            align-items: center;
            gap: 15px;
        }
        
        #newsletter-form input, #newsletter-form button {
            padding: 12px;
            border-radius: 5px;
            border: none;
            font-family: 'Poppins', sans-serif;
        }
        
        #newsletter-form input[type="text"],
        #newsletter-form input[type="email"],
        #newsletter-form input[type="date"] {
            min-width: 200px;
        }
        
        #newsletter-form .checkbox-group {
            display: flex;
            align-items: center;
            font-size: 0.9rem;
        }
        
        #newsletter-form input[type="checkbox"] {
            margin-right: 8px;
        }
        
        #main-footer {
            background: var(--dark-color);
            color: #fff;
            text-align: center;
            padding: 40px 20px;
        }
        
        #main-footer .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            text-align: left;
            margin-bottom: 30px;
        }
        
        #main-footer h4 {
            color: #fff;
            margin-bottom: 15px;
        }
        
        #main-footer ul {
            list-style: none;
        }
        
        #main-footer ul li {
            margin-bottom: 10px;
        }
        
        #main-footer a {
            color: #ccc;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        
        #main-footer a:hover, .modal-trigger:hover {
            color: var(--secondary-color);
            cursor: pointer;
        }
        
        .social-links a {
            margin-right: 15px;
            font-size: 1.5rem;
        }
        
        #main-footer .copyright {
            margin-top: 30px;
            border-top: 1px solid #555;
            padding-top: 20px;
            font-size: 0.9rem;
            text-align: center;
        }

        /* 6. Modals */
        .modal {
            display: none;
            position: fixed;
            z-index: 2000;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            overflow: auto;
            background-color: rgba(0,0,0,0.6);
        }

        .modal-content {
            background-color: #fefefe;
            margin: 10% auto;
            padding: 40px;
            border: 1px solid #888;
            width: 80%;
            max-width: 800px;
            border-radius: 10px;
            position: relative;
            animation: slide-down 0.5s ease-out;
        }
        
        @keyframes slide-down {
            from { top: -300px; opacity: 0; }
            to { top: 0; opacity: 1; }
        }

        .close-btn {
            color: #aaa;
            position: absolute;
            top: 15px;
            right: 25px;
            font-size: 35px;
            font-weight: bold;
            cursor: pointer;
        }

        .close-btn:hover,
        .close-btn:focus {
            color: black;
        }
        
        .modal-content h2 { text-align: left; }
        .modal-content p { margin-bottom: 15px; }

        /* 7. Confirmation Message */
        .form-confirmation {
            display: none;
            padding: 15px;
            margin-top: 20px;
            border-radius: 5px;
            background-color: #d4edda;
            color: #155724;
            border: 1px solid #c3e6cb;
        }
        
        /* 8. Responsive Design */
        @media(max-width: 768px) {
            h2 { font-size: 2rem; }
            #main-header .container {
                flex-direction: column;
                align-items: flex-start;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 25px;
                right: 25px;
            }
            #main-nav {
                width: 100%;
                overflow: hidden;
                max-height: 0;
                transition: max-height 0.5s ease-in-out;
            }
            
            #main-nav.active {
                max-height: 300px; /* Adjust as needed */
            }
            
            #main-nav ul {
                flex-direction: column;
                padding-top: 15px;
            }
            
            #main-nav ul li {
                margin: 10px 0;
                text-align: center;
            }
            
            #hero h1 { font-size: 2.5rem; }
            #hero p { font-size: 1.2rem; }

            #about .about-content,
            .contact-grid {
                grid-template-columns: 1fr;
            }
            
            #newsletter-form {
                flex-direction: column;
                align-items: stretch;
            }
        }