/* Header Styles */
        .main-header {
            background: #ffffff;
            box-shadow: 0 2px 15px rgba(0,0,0,0.08);
            padding: 20px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        
        .logo-section {
            display: flex;
            align-items: center;
            gap: 25px;
        }
        
        .main-logo {
            cursor: pointer;
            transition: transform 0.3s ease;
        }
        
        .main-logo:hover {
            transform: scale(1.05);
        }
        
        .main-logo img {
            max-height: 65px;
            width: auto;
        }
        
        .sub-logos {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        
        .vertical-divider {
            width: 2px;
            height: 55px;
            background: linear-gradient(to bottom, transparent, #cbd5e0, transparent);
        }
        
        .sub-logos img {
            max-height: 48px;
            width: auto;
            transition: transform 0.3s ease;
        }
        
        .sub-logos img:hover {
            transform: scale(1.05);
        }
        
        /* Navbar Styles */
        .navbar {
            padding: 0;
        }
        
        .navbar-nav {
            align-items: center;
            gap: 5px;
        }
        
        .nav-link {
            color: #2d3748 !important;
            font-weight: 500;
            font-size: 15px;
            padding: 10px 16px !important;
            transition: all 0.3s ease;
            position: relative;
            border-radius: 6px;
            white-space: nowrap;
        }
        
        .nav-link:hover {
            color: #1a56db !important;
            background: #f7fafc;
        }
        
        /* Dropdown Styles */
        .nav-item.dropdown .nav-link {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        
        .dropdown-toggle::after {
            display: none;
        }
        
        .dropdown-arrow {
            font-size: 11px;
            transition: transform 0.3s ease;
        }
        
        .nav-item.dropdown.show .dropdown-arrow {
            transform: rotate(180deg);
        }
        
        .dropdown-menu {
            border: none;
            box-shadow: 0 10px 25px rgba(0,0,0,0.12);
            border-radius: 10px;
            margin-top: 8px;
            padding: 8px;
            min-width: 220px;
        }
        
        .dropdown-item {
            padding: 12px 18px;
            transition: all 0.3s ease;
            border-radius: 6px;
            font-size: 14px;
            color: #4a5568;
        }
        
        .dropdown-item:hover {
            background: linear-gradient(135deg, #15224d, #356c93);
            color: #fff;
        }
        
        /* Hamburger Menu Styles */
        .navbar-toggler {
            border: none;
            padding: 8px;
            background: #f7fafc;
            border-radius: 6px;
        }
        
        .navbar-toggler:focus {
            box-shadow: none;
        }
        
        .navbar-toggler-icon {
            width: 26px;
            height: 2.5px;
            background-color: #2d3748;
            display: block;
            position: relative;
            transition: all 0.3s ease;
            border-radius: 2px;
        }
        
        .navbar-toggler-icon::before,
        .navbar-toggler-icon::after {
            content: '';
            width: 26px;
            height: 2.5px;
            background-color: #2d3748;
            display: block;
            position: absolute;
            transition: all 0.3s ease;
            border-radius: 2px;
        }
        
        .navbar-toggler-icon::before {
            top: -8px;
        }
        
        .navbar-toggler-icon::after {
            top: 8px;
        }
        
        .navbar-toggler[aria-expanded="true"] .navbar-toggler-icon {
            background-color: transparent;
        }
        
        .navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::before {
            transform: rotate(45deg);
            top: 0;
        }
        
        .navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::after {
            transform: rotate(-45deg);
            top: 0;
        }
        
        /* Mobile Styles */
        @media (max-width: 991.98px) {
            .main-header {
                padding: 15px 0;
            }
            
            .logo-section {
                justify-content: flex-start;
                margin-bottom: 0;
            }
            
            .main-logo img {
                max-height: 50px;
            }
            
            .sub-logos img {
                max-height: 38px;
            }
            
            .vertical-divider {
                height: 45px;
            }
            
            /* Left Side Menu */
            .navbar-collapse {
                position: fixed;
                top: 0;
                left: -100%;
                width: 280px;
                height: 100vh;
                background: #ffffff;
                box-shadow: 5px 0 25px rgba(0,0,0,0.15);
                transition: left 0.4s ease;
                overflow-y: auto;
                z-index: 9999;
                padding: 20px 0;
            }
            
            .navbar-collapse.show {
                left: 0;
            }
            
            .navbar-collapse.collapsing {
                left: -100%;
                transition: left 0.4s ease;
            }
            
            /* Mobile Menu Overlay */
            .navbar-collapse.show::before {
                content: '';
                position: fixed;
                top: 0;
                left: 280px;
                width: calc(100vw - 280px);
                height: 100vh;
                background: rgba(0,0,0,0.5);
                z-index: -1;
            }
            
            .navbar-nav {
                flex-direction: column;
                align-items: flex-start;
                width: 100%;
                gap: 0;
            }
            
            .nav-item {
                width: 100%;
                border-bottom: 1px solid #f0f0f0;
            }
            
            .nav-link {
                padding: 16px 20px !important;
                border-radius: 0;
                width: 100%;
            }
            
            .nav-link:hover {
                background: #f7fafc;
            }
            
            .dropdown-menu {
                border: none;
                box-shadow: none;
                padding: 0;
                border-radius: 0;
                background: #f7fafc;
                margin: 0;
                position: static !important;
                transform: none !important;
            }
            
            .dropdown-item {
                padding: 14px 20px 14px 40px;
                border-radius: 0;
            }
            
            .dropdown-item:hover {
                background: #edf2f7;
                transform: none;
            }
            
            /* Close button in mobile menu */
            .mobile-menu-header {
                display: flex;
                justify-content: space-between;
                align-items: center;
                padding: 15px 20px;
                border-bottom: 2px solid #f0f0f0;
                margin-bottom: 10px;
            }
            
            .mobile-menu-close {
                background: none;
                border: none;
                font-size: 24px;
                color: #2d3748;
                cursor: pointer;
                padding: 5px;
            }
        }
        
        @media (min-width: 992px) {
            .mobile-menu-header {
                display: none;
            }
        }
        
        @media (max-width: 576px) {
            .sub-logos {
                gap: 12px;
            }
            
            .main-logo img {
                max-height: 42px;
            }
            
            .sub-logos img {
                max-height: 32px;
            }
            
            .vertical-divider {
                height: 38px;
            }
            
            .logo-section {
                gap: 15px;
            }
        }