/* Reset and Base Styles */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(90deg, white 0%, #90EE90 100%);
            min-height: 100vh;
            padding: 20px;
        }

        /* Main Navigation Container */
        .nav-container {
            display: flex;
            justify-content: center;
            align-items: flex-start;
            gap: 0;
            margin-top: 50px;
            flex-wrap: nowrap;
            width: 95%;
            max-width: 1400px;
            margin-left: auto;
            margin-right: auto;
        }

        /* Individual Dropdown Container */
        .dropdown-container {
            position: relative;
            display: inline-block;
            flex: 1;
        }

        /* Dropdown Button Base Styles */
        .dropdown-btn {
            background: linear-gradient(145deg, #ffffff, #f0f0f0);
            border: none;
            padding: 15px 25px;
            border-radius: 0;
            font-size: 16px;
            font-weight: 600;
            color: #333;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
            width: 100%;
            justify-content: space-between;
            border-right: 1px solid rgba(0, 0, 0, 0.1);
        }

        /* First and Last Button Rounded Corners */
        .dropdown-container:first-child .dropdown-btn {
            border-radius: 12px 0 0 12px;
        }

        .dropdown-container:last-child .dropdown-btn {
            border-radius: 0 12px 12px 0;
            border-right: none;
        }

        /* Single Button (if only one) */
        .dropdown-container:only-child .dropdown-btn {
            border-radius: 12px;
            border-right: none;
        }

        /* Button Hover Effects */
        .dropdown-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
            transition: left 0.5s;
        }

        .dropdown-btn:hover::before {
            left: 100%;
        }

        .dropdown-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
            z-index: 10;
        }

        .dropdown-btn:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        }

        /* Active Button State */
        .dropdown-container.active .dropdown-btn {
            background: linear-gradient(145deg, #4a90e2, #357abd);
            color: white;
            transform: translateY(-2px);
            z-index: 100;
        }

        /* Arrow Styles */
        .arrow {
            width: 0;
            height: 0;
            border-left: 5px solid transparent;
            border-right: 5px solid transparent;
            border-top: 7px solid #666;
            transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
            transform-origin: center center;
        }

        .dropdown-container.active .arrow {
            transform: rotate(180deg);
            border-top-color: white;
        }

        /* Dropdown Menu Styles */
        .dropdown-menu {
            position: absolute;
            top: calc(100% + 0px);
            left: 0;
            min-width: 100%;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(20px);
            border-radius: 0 0 12px 12px;
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1),
                        0 5px 15px rgba(0, 0, 0, 0.05);
            opacity: 0;
            visibility: hidden;
            transform: translateY(-10px);
            transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
            z-index: 1000;
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-top: none;
            overflow: hidden;
            white-space: nowrap;
        }

        .dropdown-container.active .dropdown-menu {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        /* Dropdown Menu Items */
        .dropdown-item {
            padding: 12px 20px;
            color: #333;
            text-decoration: none;
            display: block;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            font-size: 14px;
        }

        .dropdown-item:last-child {
            border-bottom: none;
        }

        .dropdown-item::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(74, 144, 226, 0.1), transparent);
            transition: left 0.5s;
        }

        .dropdown-item:hover::before {
            left: 100%;
        }

        .dropdown-item:hover {
            background: rgba(74, 144, 226, 0.08);
            color: #4a90e2;
            transform: translateX(3px);
        }

        /* Specific Button Styling */
        .about-btn { min-width: 100px; }
        .attend-btn { min-width: 100px; }
        .contribute-btn { min-width: 120px; }
        .resources-btn { min-width: 120px; }
        .user-btn { min-width: 90px; }

        /* Wide Dropdown for Resources */
        .resources-dropdown .dropdown-menu {
            min-width: 250px;
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .nav-container {
                flex-wrap: wrap;
                justify-content: center;
                gap: 2px;
            }
            
            .dropdown-btn {
                padding: 12px 18px;
                font-size: 14px;
                min-width: 90px;
            }
            
            .dropdown-menu {
                min-width: 150px;
            }
        }
        
        @media (max-width: 480px) {
            .nav-container {
                flex-direction: column;
                align-items: center;
                gap: 2px;
            }
            
            .dropdown-container {
                width: 100%;
                max-width: 300px;
            }
            
            .dropdown-btn {
                width: 100%;
                border-radius: 0;
                border-right: none;
                border-bottom: 1px solid rgba(0, 0, 0, 0.1);
            }
            
            .dropdown-container:first-child .dropdown-btn {
                border-radius: 12px 12px 0 0;
            }
            
            .dropdown-container:last-child .dropdown-btn {
                border-radius: 0 0 12px 12px;
                border-bottom: none;
            }
            
            .dropdown-menu {
                position: static;
                box-shadow: inset 0 2px 5px rgba(0, 0, 0, 0.1);
                border-radius: 0;
                border: none;
                border-top: 1px solid rgba(0, 0, 0, 0.1);
            }
        }

        /* Page Title */
        .page-title {
            text-align: center;
            color: black;
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 30px;
            text-shadow: none;
        }

        /* Loading Animation */
        .dropdown-loading .arrow {
            animation: spin 1s linear infinite;
            border-top-color: #4a90e2;
        }

        @keyframes spin {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }

        /* Focus Styles for Accessibility */
        .dropdown-btn:focus,
        .dropdown-item:focus {
            outline: 2px solid #4a90e2;
            outline-offset: 2px;
        }

        /* Ripple Effect */
        .ripple {
            position: absolute;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.3);
            transform: scale(0);
            animation: rippleEffect 0.6s linear;
            pointer-events: none;
        }
        .logo-link {
            position: absolute;
            top: 25px;
            left: 10px;
        }

        .logo-link img {
            height: 50px; /* adjust size as needed */
        }

        @keyframes rippleEffect {
            to {
                transform: scale(4);
                opacity: 0;
            }
        }