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


        h1 {
            font-size: 2.4rem;
        }

        h2 {
            font-size: 2rem;
        }

        h3 {
            font-size: 1.4rem;
        }

        h4 {
            font-size: 1.125rem;
        }

        h5 {
            font-size: 1rem;
        }

        h6 {
            font-size: 0.85rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.6px;
        }

        /* Keep hero h1 larger via its specific selector (no change needed) */

        @media (max-width: 768px) {
            h1 {
                font-size: 1.8rem;
            }

            h2 {
                font-size: 1.6rem;
            }

            h3 {
                font-size: 1.2rem;
            }
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }

        /* Header styles */
        header {
            background-color: white;
            color: rgb(0, 0, 0);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--box-shadow);
        }

        /* Transparent header when page is at the very top */
        header.header--transparent {
            background-color: rgba(26, 26, 26, 0.11);
            color: white;
            /* prefer light text on dark hero */
            box-shadow: none;
        }

        /* Ensure links and other header controls are visible on transparent header */
        header.header--transparent nav ul li a {
            color: white;
        }

        /* when hovering over links on transparent header, keep the accent hover color */
        header.header--transparent nav ul li a:hover {
            color: var(--secondary-color);
        }


        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            display: flex;
            align-items: center;
        }

        .logo img {
            width: auto;
            height: 50px;
            margin-right: 10px;
            transition: transform 180ms ease, opacity 180ms ease;
        }