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

        html {
            font-size: 16px;
        }

        body {
            font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
            font-size: 0.875rem;
            line-height: 1.75;
            color: #555;
            background-color: #fff;
        }

        .container {
            max-width: 940px;
            margin: 0 auto;
            padding: 0 20px;
        }

        header {
            padding: 40px 0;
            border-bottom: 1px solid #e7e7e7;
        }

        #branding {
            margin-bottom: 20px;
        }

        #site-title {
            font-size: 2.5rem;
            font-weight: bold;
            line-height: 1.2;
            margin-bottom: 10px;
            color: #222;
        }

        #site-description {
            font-size: 1.125rem;
            color: #aaa;
            line-height: 1.5;
        }

        nav {
            margin-top: 30px;
        }

        nav ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
        }

        nav ul li {
            position: relative;
        }

        nav ul li a {
            color: #222;
            text-decoration: none;
            font-weight: bold;
            transition: color 0.2s ease-out;
        }

        nav ul li a:hover {
            color: #64a2d8;
        }

        nav ul ul {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            background: #fff;
            border: 1px solid #d9d9d9;
            box-shadow: 0 0 7px rgba(0, 0, 0, 0.11);
            padding: 10px 0;
            min-width: 200px;
            z-index: 100;
            margin-top: 10px;
        }

        nav ul li:hover > ul {
            display: block;
        }

        nav ul ul li {
            width: 100%;
        }

        nav ul ul li a {
            display: block;
            padding: 8px 15px;
            font-weight: normal;
            color: #888;
        }

        nav ul ul li a:hover {
            color: #222;
        }

        main {
            padding: 60px 0;
        }

        h1 {
            font-size: 2.5rem;
            font-weight: bold;
            color: #333;
            line-height: 1.3;
            margin-bottom: 30px;
        }

        article {
            max-width: 680px;
            margin-bottom: 50px;
        }

        article h2 {
            font-size: 2rem;
            font-weight: bold;
            color: #333;
            margin: 40px 0 20px 0;
            line-height: 1.3;
        }

        article h3 {
            font-size: 1.5rem;
            font-weight: bold;
            color: #333;
            margin: 30px 0 15px 0;
            line-height: 1.3;
        }

        article h4 {
            font-size: 1.25rem;
            font-weight: bold;
            color: #333;
            margin: 25px 0 15px 0;
            line-height: 1.3;
        }

        article p {
            margin-bottom: 1.75em;
            color: #555;
        }

        article a {
            color: #64a2d8;
            text-decoration: none;
            transition: color 0.2s ease-out;
        }

        article a:hover {
            color: #000;
        }

        .transition-section {
            max-width: 680px;
            margin-bottom: 50px;
        }

        .transition-section p {
            margin-bottom: 1.75em;
            color: #555;
        }

        .links-section {
            background: #f9f9f9;
            padding: 50px 0;
            margin-top: 50px;
            border-top: 1px solid #e7e7e7;
            border-bottom: 1px solid #e7e7e7;
        }

        .links-section h3 {
            font-size: 1.5rem;
            font-weight: bold;
            color: #333;
            margin-bottom: 20px;
            line-height: 1.3;
        }

        .links-section ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px 30px;
            margin-bottom: 40px;
        }

        .links-section ul li {
            line-height: 2;
        }

        .links-section ul li a {
            color: #555;
            text-decoration: none;
            transition: color 0.2s ease-out;
        }

        .links-section ul li a:hover {
            color: #64a2d8;
        }

        footer {
            padding: 30px 0;
            border-top: 1px solid #e7e7e7;
        }

        .footer-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 0.875rem;
            color: #aaa;
        }

        .footer-content a {
            color: #888;
            text-decoration: none;
            transition: color 0.2s ease-out;
        }

        .footer-content a:hover {
            color: #64a2d8;
        }

        @media only screen and (max-width: 768px) {
            html {
                font-size: 14px;
            }

            .container {
                padding: 0 15px;
            }

            header {
                padding: 20px 0;
            }

            #site-title {
                font-size: 2rem;
            }

            #site-description {
                font-size: 1rem;
            }

            nav ul {
                flex-direction: column;
                gap: 10px;
            }

            nav ul ul {
                position: static;
                display: none;
                border: none;
                box-shadow: none;
                padding: 10px 0 0 15px;
                margin-top: 5px;
            }

            nav ul li:hover > ul {
                display: block;
            }

            main {
                padding: 30px 0;
            }

            h1 {
                font-size: 2rem;
                margin-bottom: 20px;
            }

            article h2 {
                font-size: 1.5rem;
                margin: 30px 0 15px 0;
            }

            article h3 {
                font-size: 1.25rem;
            }

            .links-section {
                padding: 30px 0;
            }

            .links-section ul {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            .footer-content {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media only screen and (max-width: 480px) {
            #site-title {
                font-size: 1.5rem;
            }

            h1 {
                font-size: 1.75rem;
            }
        }