:root {
            --primary-blue: #1a365d;
            --secondary-gold: #d4af37;
            --accent-green: #2e8540;
            --light-bg: #f8f9fa;
            --dark-text: #2d3748;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Poppins', sans-serif;
            color: var(--dark-text);
            line-height: 1.7;
            overflow-x: hidden;
            padding-top: 80px;
        }
        h1, h2, h3, h4, h5 {
            font-family: 'Noto Serif', serif;
            font-weight: 700;
            color: var(--primary-blue);
        }
        .navbar {
            background-color: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(10px);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            padding: 1rem 0;
            transition: all 0.3s ease;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--primary-blue) !important;
        }
        .nav-link {
            font-weight: 500;
            color: var(--primary-blue) !important;
            margin: 0 0.5rem;
            transition: color 0.3s;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--secondary-gold) !important;
        }
        .hero-section {
            background: linear-gradient(rgba(26, 54, 93, 0.85), rgba(26, 54, 93, 0.9)), url('https://images.unsplash.com/photo-1577896851231-70ef18881754?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 8rem 0;
            min-height: 90vh;
            display: flex;
            align-items: center;
        }
        .section-title {
            position: relative;
            padding-bottom: 1rem;
            margin-bottom: 3rem;
        }
        .section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 80px;
            height: 4px;
            background: var(--secondary-gold);
        }
        .section-title.text-center:after {
            left: 50%;
            transform: translateX(-50%);
        }
        .impact-card {
            border: none;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            transition: transform 0.3s, box-shadow 0.3s;
            height: 100%;
        }
        .impact-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
        }
        .icon-wrapper {
            width: 70px;
            height: 70px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-blue), #2c5282);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
            color: white;
            font-size: 1.8rem;
        }
        .btn-primary-custom {
            background: linear-gradient(to right, var(--primary-blue), #2c5282);
            border: none;
            padding: 0.8rem 2.2rem;
            border-radius: 50px;
            font-weight: 600;
            color: white;
            transition: all 0.3s;
            text-decoration: none;
            display: inline-block;
        }
        .btn-primary-custom:hover {
            background: linear-gradient(to right, #2c5282, var(--primary-blue));
            color: white;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
        }
        .footer {
            background-color: var(--primary-blue);
            color: #e2e8f0;
            padding: 4rem 0 1.5rem;
        }
        .footer a {
            color: #cbd5e0;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer a:hover {
            color: white;
        }
        .friendlink {
            background-color: var(--light-bg);
            padding: 2rem;
            border-radius: 12px;
            margin-top: 2rem;
        }
        .flink {
            display: inline-block;
            background: white;
            padding: 0.6rem 1.5rem;
            margin: 0.5rem;
            border-radius: 8px;
            color: var(--primary-blue);
            font-weight: 500;
            border: 1px solid #e2e8f0;
            transition: all 0.3s;
            text-decoration: none;
        }
        .flink:hover {
            background: var(--primary-blue);
            color: white;
            border-color: var(--primary-blue);
            transform: translateY(-3px);
        }
        .timeline-item {
            position: relative;
            padding-left: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .timeline-item:before {
            content: '';
            position: absolute;
            left: 0;
            top: 8px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background-color: var(--secondary-gold);
            border: 3px solid white;
            box-shadow: 0 0 0 3px var(--secondary-gold);
        }
        .testimonial-card {
            background: white;
            border-radius: 12px;
            padding: 2rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
            height: 100%;
            border-left: 5px solid var(--accent-green);
        }
        .partner-logo {
            filter: grayscale(1);
            opacity: 0.7;
            transition: all 0.3s;
            max-height: 70px;
            width: auto;
        }
        .partner-logo:hover {
            filter: grayscale(0);
            opacity: 1;
        }
        .donation-amount {
            background: white;
            border: 2px solid #e2e8f0;
            border-radius: 10px;
            padding: 1.5rem;
            text-align: center;
            cursor: pointer;
            transition: all 0.3s;
        }
        .donation-amount:hover, .donation-amount.active {
            border-color: var(--accent-green);
            background-color: rgba(46, 133, 64, 0.05);
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 5rem 0;
                min-height: 70vh;
            }
            .section-title {
                font-size: 1.8rem;
            }
            body {
                padding-top: 70px;
            }
        }
        .stat-number {
            font-size: 3.5rem;
            font-weight: 800;
            background: linear-gradient(to right, var(--primary-blue), var(--accent-green));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1;
        }
        .sticky-top {
            top: 0;
            z-index: 1020;
        }
        .animate-on-scroll {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.8s, transform 0.8s;
        }
        .animate-on-scroll.visible {
            opacity: 1;
            transform: translateY(0);
        }