:root {
            --primary: #4a6fa5;
            --secondary: #166088;
            --accent: #4fc3f7;
            --light: #f8f9fa;
            --dark: #343a40;
            --success: #28a745;
            --warning: #ffc107;
            --danger: #dc3545;
            --text: #495057;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background-color: #f5f7fa;
            color: var(--text);
            line-height: 1.6;
        }
        
        header {
            background: linear-gradient(135deg, rgb(9, 166, 32)20%, rgb(47, 54, 48)35%, rgb(9, 166, 32)100%);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        
        .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
        }
        
        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            font-size: 1.8rem;
            font-weight: 700;
            display: flex;
            align-items: center;
        }
        
        .logo i {
            margin-right: 10px;
            color: var(--accent);
        }
        
        .nav-links {
            display: flex;
            list-style: none;
        }
        
        .nav-links li {
            margin-left: 2rem;
        }
        
        .nav-links a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s ease;
            padding: 0.5rem 0;
            position: relative;
        }
        
        .nav-links a:hover {
            color: #18ef52;
        }
        
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: #18ef52;
            transition: width 0.3s ease;
        }
        
        .nav-links a:hover::after {
            width: 100%;
        }
        
        .mobile-menu {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
        }
        
        .hero {
            background: url('images/2.png') center/cover;
            background-size: cover;
            height: 100vh;
            display: flex;
            align-items: center;
            position: relative;
            color: white;
            text-align: center;
        }
        
        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(43, 87, 65, 0.6);
        }
        
        .hero-content {
            position: relative;
            z-index: 1;
            width: 100%;
        }
        
        .hero h1 {
            font-size: 3rem;
            margin-bottom: 1rem;
            animation: fadeInDown 1s ease;
        }
        
        .hero p {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto 2rem;
            animation: fadeInUp 1s ease;
        }
        
        .btn {
            display: inline-block;
            background-color: #18ef52;
            color: white;
            padding: 0.8rem 1.8rem;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            font-size: 1rem;
        }
        
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
            background-color: #fcfeff;
            color:#18ef52;
        }
        
        .get-started {
            background-color: transparent;
            border: 2px solid white;
            margin-left: 1rem;
        }
        
        .get-started:hover {
            background-color: white;
            color: var(--primary);
        }
        
        .topics {
            padding: 4rem 0;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 3rem;
            position: relative;
        }
        
        .section-title h2 {
            font-size: 2.2rem;
            color: var(--secondary);
            display: inline-block;
        }
        
        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background-color: var(--accent);
        }
        
        .topics-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 2rem;
        }
        
        .topic-card {
            background-color: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
        }
        
        .topic-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }
        
        .topic-img {
            height: 200px;
            overflow: hidden;
        }
        
        .topic-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .topic-card:hover .topic-img img {
            transform: scale(1.1);
        }
        
        .topic-content {
            padding: 1.5rem;
        }
        
        .topic-content h3 {
            font-size: 1.4rem;
            margin-bottom: 0.8rem;
            color: var(--secondary);
        }
        
        .topic-content p {
            margin-bottom: 1.5rem;
            color: var(--text);
        }
        
        .tag {
            display: inline-block;
            padding: 0.3rem 0.8rem;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-right: 0.5rem;
            margin-bottom: 0.5rem;
        }
        
        .tag-depression {
            background-color: #e3f2fd;
            color: #1565c0;
        }
        
        .tag-anxiety {
            background-color: #e8f5e9;
            color: #2e7d32;
        }
        
        .tag-addiction {
            background-color: #fff3e0;
            color: #e65100;
        }
        
        .articles {
            padding: 4rem 0;
            background-color: #f0f4f8;
        }
        
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 2rem;
        }
        
        .article-card {
            background-color: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
        }

        .article-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
        }
        
        .article-content {
            padding: 1.5rem;
        }
        
        .article-content h3 {
            font-size: 1.3rem;
            margin-bottom: 0.8rem;
            color: var(--dark);
        }
        
        .article-meta {
            display: flex;
            justify-content: space-between;
            margin-bottom: 1rem;
            font-size: 0.9rem;
            color: #6c757d;
        }
        
        .read-more {
            color: var(--primary);
            font-weight: 600;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            transition: all 0.3s ease;
        }
        
        .read-more:hover {
            color: var(--secondary);
        }
        
        .read-more i {
            margin-left: 5px;
            transition: transform 0.3s ease;
        }
        
        .read-more:hover i {
            transform: translateX(5px);
        }
        
        .newsletter {
            padding: 4rem 0;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: white;
            text-align: center;
        }
        
        .newsletter h2 {
            font-size: 2rem;
            margin-bottom: 1rem;
        }
        
        .newsletter p {
            max-width: 600px;
            margin: 0 auto 2rem;
        }
        
        .newsletter-form {
            display: flex;
            max-width: 500px;
            margin: 0 auto;
        }
        
        .newsletter-form input {
            flex: 1;
            padding: 0.8rem 1rem;
            border: none;
            border-radius: 50px 0 0 50px;
            font-size: 1rem;
            outline: none;
        }
        
        .newsletter-form button {
            padding: 0 1.5rem;
            border: none;
            border-radius: 0 50px 50px 0;
            background-color: var(--accent);
            color: white;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .newsletter-form button:hover {
            background-color: #3da8d8;
        }
        
        footer {
            background-color: var(--dark);
            color: white;
            padding: 3rem 0 1rem;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        
        .footer-column h3 {
            font-size: 1.2rem;
            margin-bottom: 1.5rem;
            position: relative;
            display: inline-block;
        }
        
        .footer-column h3::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 0;
            width: 40px;
            height: 2px;
            background-color: var(--accent);
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        
        .footer-links a {
            color: #adb5bd;
            text-decoration: none;
            transition: all 0.3s ease;
        }
        
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        
        .social-links {
            display: flex;
            gap: 1rem;
            margin-top: 1rem;
        }
        
        .social-links a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
           border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.1);
            color: white;
            transition: all 0.3s ease;
        }
        
        .social-links a:hover {
            background-color: var(--accent);
            transform: translateY(-3px);
        }
        
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            color: #adb5bd;
        }
        
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.8);
            z-index: 2000;
            overflow-y: auto;
        }
        
        .modal-content {
            background-color: white;
            width: 90%;
            max-width: 800px;
            margin: 3rem auto;
            border-radius: 10px;
            overflow: hidden;
            animation: modalFadeIn 0.5s ease;
        }
        
        .modal-header {
            padding: 1.5rem;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: white;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .modal-header h2 {
            font-size: 1.5rem;
        }
        
        .close-modal {
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
            transition: transform 0.3s ease;
        }
        
        .close-modal:hover {
            transform: rotate(90deg);
        }
        
        .modal-body {
            padding: 2rem;
        }
        
        .modal-body h3 {
            color: var(--secondary);
            margin: 1.5rem 0 1rem;
        }
        
        .modal-body ul {
            margin-left: 1.5rem;
            margin-bottom: 1.5rem;
        }
        
        .modal-body p {
            margin-bottom: 1rem;
        }
        
        .emergency-contact {
            background-color: #fff3e0;
            padding: 1rem;
            border-radius: 5px;
            margin-top: 1.5rem;
        }
        
        @keyframes fadeInDown {
            from {
                opacity: 0;
                transform: translateY(-20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        @keyframes modalFadeIn {
            from {
                opacity: 0;
                transform: translateY(-50px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .dark-mode-toggle {
            position: fixed;
            bottom: 20px;
            right: 20px;
            z-index: 1000;
        }
        
        .toggle-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: var(--dark);
            color: white;
            border: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
            transition: all 0.3s ease;
        }
        
        .toggle-btn:hover {
            transform: scale(1.1);
        }

        body.dark-mode {
            background-color: #1a1a1a;
            color: #e0e0e0;
        }
        
        .dark-mode .topic-card,
        .dark-mode .article-card {
            background-color: #2d2d2d;
            color: #e0e0e0;
        }
        
        .dark-mode .topic-content h3,
        .dark-mode .article-content h3 {
            color: #ffffff;
        }
        
        .dark-mode .articles {
            background-color: #121212;
        }
        
        .back-to-top {
            position: fixed;
            bottom: 80px;
            right: 20px;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: var(--primary);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            z-index: 1000;
        }
        
        .back-to-top.visible {
            opacity: 1;
            visibility: visible;
        }
        
        .back-to-top:hover {
            background-color: var(--secondary);
            transform: translateY(-3px);
        }
        
        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 70px);
                background-color: var(--secondary);
                flex-direction: column;
                align-items: center;
                padding: 2rem 0;
                transition: all 0.5s ease;
            }
            
            .nav-links.active {
                left: 0;
            }
            
            .nav-links li {
                margin: 1rem 0;
            }
            
            .mobile-menu {
                display: block;
            }
            
            .hero h1 {
                font-size: 2.2rem;
            }
            
            .hero p {
                font-size: 1rem;
            }
            
            .btn {
                padding: 0.6rem 1.5rem;
            }
            
            .newsletter-form {
                flex-direction: column;
            }
            
            .newsletter-form input {
                border-radius: 50px;
                margin-bottom: 1rem;
            }
            
            .newsletter-form button {
                border-radius: 50px;
                padding: 0.8rem;
            }
        }