:root {
            --primary-color: #fa7700;
            --secondary-color: #2c3e50;
            --accent-color: #f39c12;
            --light-bg: #f8f9fa;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
        }

        .hero-section {
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            color: white;
            padding: 80px 0;
            text-align: center;
        }

        .donation-card {
            background: white;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            padding: 40px;
            margin-top: -50px;
            position: relative;
            z-index: 2;
        }

        .amount-btn {
            border: 1px solid var(--primary-color);
            color: var(--primary-color);
            background: white;
            padding: 15px 25px;
            margin: 10px;
            border-radius: 50px;
            font-weight: 600;
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .amount-btn:hover, .amount-btn.active {
            background: var(--primary-color);
            color: white;
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(231, 76, 60, 0.3);
        }

        .custom-amount {
            border: 1px solid #ddd;
            border-radius: 10px;
            padding: 15px;
            font-size: 18px;
            text-align: center;
        }

        .custom-amount:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.2rem rgba(231, 76, 60, 0.25);
        }

        .donate-btn {
            background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
            border: none;
            padding: 18px 40px;
            font-size: 18px;
            font-weight: 600;
            border-radius: 50px;
            color: white;
            transition: all 0.3s ease;
            width: 100%;
            margin-top: 20px;
        }

        .donate-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(231, 76, 60, 0.3);
            color: white;
        }

        .impact-section {
            background: var(--light-bg);
            padding: 60px 0;
        }

        .impact-card {
            background: white;
            border-radius: 15px;
            padding: 30px;
            text-align: center;
            height: 100%;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            transition: transform 0.3s ease;
        }

        .impact-card:hover {
            transform: translateY(-5px);
        }

        .impact-icon {
            font-size: 3rem;
            color: var(--primary-color);
            margin-bottom: 20px;
        }

        .form-control {
            border-radius: 10px;
            border: 1px solid #e9ecef;
            padding: 12px 15px;
        }

        .form-control:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.2rem rgba(231, 76, 60, 0.25);
        }

        .security-badge {
            background: #28a745;
            color: white;
            padding: 10px 20px;
            border-radius: 25px;
            font-size: 13px;
            display: inline-block;
            margin-top: 15px;
        }

        .testimonial {
            background: white;
            border-radius: 15px;
            padding: 30px;
            margin: 20px 0;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
        }

        .frequency-toggle {
            background: #f8f9fa;
            border-radius: 50px;
            padding: 5px;
            margin-bottom: 30px;
        }

        .frequency-btn {
            background: transparent;
            border: none;
            padding: 12px 30px;
            border-radius: 50px;
            transition: all 0.3s ease;
            font-weight: 500;
        }

        .frequency-btn.active {
            background: var(--primary-color);
            color: white;
        }