:root {
            --primary-color: #1e3a8a;
            --secondary-color: #dc2626;
            --accent-color: #f59e0b;
            --light-color: #f8fafc;
            --dark-color: #0f172a;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            color: #333;
            line-height: 1.6;
            overflow-x: hidden;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--primary-color);
        }
        .navbar-brand span {
            color: var(--secondary-color);
        }
        .hero-section {
            background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('https://images.unsplash.com/photo-1575361204480-aadea25e6e68?ixlib=rb-4.0.3&auto=format&fit=crop&w=2071&q=80') no-repeat center center/cover;
            color: white;
            padding: 150px 0;
        }
        .section-title {
            color: var(--primary-color);
            border-left: 5px solid var(--secondary-color);
            padding-left: 15px;
            margin-bottom: 30px;
        }
        .card {
            border: none;
            border-radius: 15px;
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            height: 100%;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            padding: 10px 25px;
            border-radius: 30px;
            font-weight: 600;
            transition: all 0.3s;
        }
        .btn-primary:hover {
            background-color: var(--secondary-color);
            border-color: var(--secondary-color);
            transform: scale(1.05);
        }
        .icon-box {
            width: 70px;
            height: 70px;
            background: var(--primary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 1.8rem;
        }
        .team-img {
            height: 250px;
            object-fit: cover;
            border-bottom: 5px solid var(--secondary-color);
        }
        .friendlink {
            background-color: #f1f5f9;
            padding: 50px 0;
        }
        .flink {
            display: inline-block;
            margin: 10px 15px;
            padding: 10px 20px;
            background: white;
            border-radius: 10px;
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s;
            border: 2px solid transparent;
        }
        .flink:hover {
            border-color: var(--secondary-color);
            color: var(--secondary-color);
            transform: translateY(-5px);
        }
        footer {
            background-color: var(--dark-color);
            color: white;
        }
        .social-icon {
            display: inline-block;
            width: 40px;
            height: 40px;
            background: var(--primary-color);
            color: white;
            border-radius: 50%;
            text-align: center;
            line-height: 40px;
            margin: 0 5px;
            transition: all 0.3s;
        }
        .social-icon:hover {
            background: var(--secondary-color);
            transform: rotate(15deg);
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background: var(--primary-color);
            color: white;
            border-radius: 50%;
            text-align: center;
            line-height: 50px;
            font-size: 1.5rem;
            display: none;
            z-index: 1000;
            text-decoration: none;
        }
        .back-to-top:hover {
            background: var(--secondary-color);
            color: white;
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 100px 0;
            }
            .display-4 {
                font-size: 2.5rem;
            }
        }