* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        :root {
            --primary: #4a6fa5;
            --secondary: #ff7e5f;
            --light: #f8f9fa;
            --dark: #343a40;
            --success: #28a745;
        }

        body {
            color: #333;
            line-height: 1.6;
            background-color: #f5f5f5;
        }

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

        /* Header */
        header {
            background-color: var(--primary);
            color: white;
            padding: 20px 0;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }

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

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

        .logo i {
            font-size: 2.5rem;
            color: var(--secondary);
        }

        .logo h1 {
            font-size: 1.8rem;
            font-weight: 700;
        }

        .logo span {
            color: var(--secondary);
        }

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

        nav a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s;
            font-size: 1.1rem;
        }

        nav a:hover {
            color: var(--secondary);
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
             .mobile-menu {
                display: none;
                width: 100%;
                margin-top: 20px;
            }

                .desktop-menu {
                display: block;
                width: 100%;
                margin-top: 20px;
            }

        /* Hero Section */
        .hero {
            background: linear-gradient(rgba(74, 111, 165, 0.8), rgba(74, 111, 165, 0.9)), url('https://images.unsplash.com/photo-1548767797-d8c844163c4c?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 100px 0;
            text-align: center;
        }

        .hero h2 {
            font-size: 2.8rem;
            margin-bottom: 20px;
            text-shadow: 2px 2px 5px rgba(0,0,0,0.3);
        }

        .hero p {
            font-size: 1.3rem;
            max-width: 800px;
            margin: 0 auto 30px;
        }

        .cta-button {
            display: inline-block;
            background-color: var(--secondary);
            color: white;
            padding: 15px 40px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 700;
            font-size: 1.2rem;
            transition: all 0.3s;
            box-shadow: 0 4px 15px rgba(0,0,0,0.2);
            border: 2px solid var(--secondary);
        }

        .cta-button:hover {
            background-color: transparent;
            transform: translateY(-5px);
            box-shadow: 0 6px 20px rgba(0,0,0,0.3);
        }

        /* Stats Section */
        .stats {
            background-color: var(--light);
            padding: 60px 0;
            text-align: center;
        }

        .stats h2 {
            color: var(--primary);
            margin-bottom: 40px;
            font-size: 2.2rem;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
        }

        .stat-item {
            background-color: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: transform 0.3s;
        }

        .stat-item:hover {
            transform: translateY(-10px);
        }

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

        .stat-item h3 {
            font-size: 2.5rem;
            color: var(--secondary);
            margin-bottom: 10px;
        }

        /* Donation Section */
        .donation {
            padding: 80px 0;
            background-color: white;
        }

        .donation-content {
            display: flex;
            align-items: center;
            gap: 50px;
        }

        .donation-text {
            flex: 1;
        }

        .donation-text h2 {
            color: var(--primary);
            font-size: 2.2rem;
            margin-bottom: 20px;
        }

        .donation-text p {
            margin-bottom: 20px;
            font-size: 1.1rem;
        }

        .donation-form {
            flex: 1;
            background-color: var(--light);
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.1);
        }

        .donation-form h3 {
            color: var(--primary);
            margin-bottom: 20px;
            font-size: 1.8rem;
        }

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

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

        .form-group input, .form-group select {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #ddd;
            border-radius: 5px;
            font-size: 1rem;
        }

        .donation-amounts {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 20px;
        }

        .amount-btn {
            padding: 12px 20px;
            background-color: white;
            border: 2px solid var(--primary);
            border-radius: 5px;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.3s;
            flex-grow: 1;
        }

        .amount-btn:hover, .amount-btn.active {
            background-color: var(--primary);
            color: white;
        }

        .submit-btn {
            background-color: var(--secondary);
            color: white;
            border: none;
            padding: 15px;
            width: 100%;
            border-radius: 5px;
            font-size: 1.1rem;
            font-weight: 700;
            cursor: pointer;
            transition: background-color 0.3s;
        }

        .submit-btn:hover {
            background-color: #e76b50;
        }

        /* Animals Section */
        .animals {
            padding: 80px 0;
            background-color: var(--light);
        }

        .animals h2 {
            text-align: center;
            color: var(--primary);
            font-size: 2.2rem;
            margin-bottom: 40px;
        }

        .animals-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 30px;
        }

        .animal-card {
            background-color: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: transform 0.3s;
        }

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

        .animal-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }

        .animal-card-content {
            padding: 20px;
        }

        .animal-card h3 {
            color: var(--primary);
            margin-bottom: 10px;
        }

        .animal-card p {
            margin-bottom: 15px;
            color: #666;
        }

        /* Footer */
        footer {
            background-color: var(--dark);
            color: white;
            padding: 50px 0 20px;
        }

        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 30px;
        }

        .footer-column h3 {
            color: var(--secondary);
            margin-bottom: 20px;
            font-size: 1.3rem;
        }

        .footer-column p, .footer-column a {
            color: #ccc;
            margin-bottom: 10px;
            display: block;
            text-decoration: none;
        }

        .footer-column a:hover {
            color: var(--secondary);
        }

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

        .social-icons a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background-color: rgba(255,255,255,0.1);
            border-radius: 50%;
            transition: background-color 0.3s;
        }

        .social-icons a:hover {
            background-color: var(--secondary);
        }

        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #aaa;
            font-size: 0.9rem;
        }

        /* Responsive */
        @media (max-width: 992px) {
            .donation-content {
                flex-direction: column;
            }
        }

        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
                text-align: center;
                gap: 20px;
            }

            nav ul {
                flex-direction: column;
                gap: 15px;
                text-align: center;
            }

            .mobile-menu-btn {
                display: block;
            }

            .mobile-menu {
                display: none;
                width: 100%;
                margin-top: 20px;
            }

            .mobile-menu.active {
                display: block;
            }
            .desktop-menu {
                display: none;
                width: 100%;
                margin-top: 20px;
            }

            .hero h2 {
                font-size: 2.2rem;
            }

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