/* Header */
#toolbar-bar {
  position: fixed;
    top: 42px;
}
        header[role="banner"] {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
            padding: 0 0.5rem;
        }

        @media (min-width: 1450px) {
            header[role="banner"] {
                padding: 0 5rem;
        }
        }

        header[role="banner"] nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 2rem;

        }

        header[role="banner"] ul {
            padding: 0;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: #333;
            text-decoration: none;
            border-bottom: 3px solid #667eea;
            padding-bottom: 2px;
        }

        header[role="banner"] nav ul:not(.contextual-links) {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            list-style: none;
                        flex-wrap: wrap;
        }

        header[role="banner"] nav ul li:first-child {
            margin-right: auto;
        }

        header[role="banner"] nav ul li:not(:first-child) {
            margin-left: 1.5rem;
        }

        header[role="banner"] nav ul a {
            text-decoration: none;
            color: #666;
            font-weight: 500;
            transition: color 0.3s ease;
            position: relative;
            padding-bottom: 0.25rem;
        }

        header[role="banner"] nav ul li:first-child a {
            font-size: 1.5rem;
            font-weight: 700;
            text-decoration: none;
            padding-bottom: 0;
        }

        header[role="banner"] nav ul a.is-active {
            color: #333;
            border-bottom: 3px solid #333;;
        }

        header[role="banner"] nav ul a:hover {
            color: #333;
        }

        header[role="banner"] nav ul a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: #333;
            transition: width 0.3s ease;
        }

        header[role="banner"] nav ul a:not(.is-active):hover::after {
            width: 100%;
        }