* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        :root {
            --color-primary: #01161E;
            --color-secondary: #124559;
            --color-tertiary: #598392;
            --color-accent: #AEC3B0;
            --color-highlight: #EFF650;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            background-color: #f5f5f5;
            color: var(--color-primary);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .header {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
            color: white;
            padding: 0;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }

        .header-container {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 2rem;
        }

        .logo-section {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .logo {
            width: 50px;
            height: 50px;
            background-color: var(--color-highlight);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 24px;
            color: var(--color-primary);
        }

        .site-title {
            font-size: 1.5rem;
            font-weight: 600;
        }

        .nav-section {
            display: flex;
            align-items: center;
            gap: 2rem;
        }

        .nav-links {
            display: flex;
            gap: 1.5rem;
            list-style: none;
        }

        .nav-links a {
            color: white;
            text-decoration: none;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: all 0.3s ease;
            font-weight: 500;
        }

        .nav-links a:hover {
            background-color: var(--color-tertiary);
        }

        .nav-links a.active {
            background-color: var(--color-highlight);
            color: var(--color-primary);
        }

        /* Hamburger menu button */
        .mobile-menu-toggle {
            display: none;
            flex-direction: column;
            gap: 4px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 0.5rem;
        }

        .mobile-menu-toggle span {
            width: 25px;
            height: 3px;
            background-color: white;
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .mobile-menu-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .mobile-menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .mobile-menu-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(7px, -6px);
        }

        .user-section {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .user-info {
            text-align: right;
            font-size: 0.9rem;
        }

        .user-name {
            font-weight: 600;
        }

        .user-role {
            font-size: 0.75rem;
            color: var(--color-accent);
            text-transform: uppercase;
        }

        .btn {
            padding: 0.6rem 1.5rem;
            border: none;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            text-decoration: none;
            display: inline-block;
            transition: all 0.3s ease;
            font-size: 0.95rem;
        }

        .btn-login {
            background-color: var(--color-highlight);
            color: var(--color-primary);
        }

        .btn-login:hover {
            background-color: #f5ff70;
            transform: translateY(-1px);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
        }

        .btn-logout {
            background-color: transparent;
            color: white;
            border: 2px solid var(--color-accent);
        }

        .btn-logout:hover {
            background-color: var(--color-accent);
            color: var(--color-primary);
        }

        .main-content {
            max-width: 1400px;
            margin: 2rem auto;
            padding: 0 2rem;
            flex: 1;
            width: 100%;
        }

        /* Ensure nav is visible on desktop */
        @media (min-width: 769px) {
            .nav-section {
                display: flex;
            }
            
            .mobile-menu-toggle {
                display: none;
            }
        }

        /* Mobile responsiveness */
        @media (max-width: 768px) {
            .header-container {
                padding: 1rem;
            }

            .site-title {
                font-size: 1.2rem;
            }

            /* Styles for LOGGED IN users (with hamburger menu) */
            .header-container.logged-in .logo-section {
                width: 100%;
                justify-content: space-between;
            }

            .header-container.logged-in .mobile-menu-toggle {
                display: flex;
            }

            .header-container.logged-in .nav-section {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-secondary) 100%);
                flex-direction: column;
                align-items: flex-start;
                padding: 5rem 2rem 2rem;
                gap: 0;
                transition: right 0.3s ease;
                box-shadow: -5px 0 15px rgba(0, 0, 0, 0.3);
                z-index: 999;
            }

            .header-container.logged-in .nav-section.active {
                right: 0;
            }

            .header-container.logged-in .nav-links {
                flex-direction: column;
                width: 100%;
                gap: 0;
                margin-bottom: 2rem;
            }

            .header-container.logged-in .nav-links li {
                width: 100%;
            }

            .header-container.logged-in .nav-links a {
                display: block;
                padding: 1rem;
                border-radius: 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }

            .header-container.logged-in .user-section {
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                gap: 1rem;
                padding-top: 1rem;
                border-top: 2px solid rgba(255, 255, 255, 0.2);
            }

            .header-container.logged-in .user-info {
                text-align: left;
            }

            .header-container.logged-in .btn {
                width: 100%;
                text-align: center;
            }

            /* Styles for LOGGED OUT users (no hamburger, login button visible) */
            .header-container.logged-out {
                flex-wrap: wrap;
            }

            .header-container.logged-out .logo-section {
                flex: 1;
            }

            .header-container.logged-out .nav-section {
                display: flex;
                position: relative;
                right: auto;
                width: auto;
                height: auto;
                background: none;
                padding: 0;
                box-shadow: none;
                flex-direction: row;
            }

            .header-container.logged-out .mobile-menu-toggle {
                display: none;
            }
        }

        /* Overlay for mobile menu */
        .mobile-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 998;
        }

        .mobile-overlay.active {
            display: block;
        }