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

        html {
            font-size: 100%;
            -webkit-text-size-adjust: 100%;
            -ms-text-size-adjust: 100%;
        }

        body {
            font-family: Helvetica, Arial, sans-serif;
            line-height: 1.6;
            color: #202020;
            background-color: #fff;
        }

        a {
            color: #51cb1f;
            text-decoration: none;
            transition: color 0.2s;
        }

        a:hover {
            color: #51f70d;
            text-decoration: underline;
        }

        h1, h2, h3, h4, h5, h6 {
            font-family: Georgia, serif;
            line-height: 1.3;
            margin-bottom: 0.75em;
        }

        h1 {
            font-size: 2em;
            margin-top: 0;
        }

        h2 {
            font-size: 1.5em;
        }

        h3 {
            font-size: 1.17em;
            color: #1e607f;
        }

        p {
            margin-bottom: 1em;
        }

        ul {
            list-style: none;
        }

        .site-header {
            background: #349ECF;
            padding: 1.5em 0;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        }

        .site-nav {
            background-color: #fff;
            padding: 0.5em 0;
            border-bottom: 1px solid #dfdfdf;
            margin-bottom: 2em;
        }

        .nav-list {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            align-items: center;
            gap: 0.5em 1em;
        }

        .nav-list li {
            display: inline-block;
        }

        .nav-list a {
            color: #1e607f;
            font-weight: bold;
            padding: 0.5em 1em;
            display: block;
        }

        .nav-list a:hover {
            color: #51cb1f;
            text-decoration: none;
        }

        .container {
            max-width: 71.28571em;
            margin: 0 auto;
            padding: 0 1em;
        }

        .content-wrapper {
            display: flex;
            flex-wrap: wrap;
            gap: 2em;
            margin-bottom: 2em;
        }

        .main-content {
            flex: 1;
            min-width: 300px;
        }

        article {
            background: #fff;
            padding: 1.5em;
            margin-bottom: 2em;
            border-radius: 0.5em;
        }

        article h1 {
            color: #1e607f;
            border-bottom: 4px solid #51cb1f;
            padding-bottom: 0.5em;
            margin-bottom: 1em;
        }

        article h2 {
            color: #349ECF;
            margin-top: 1.5em;
        }

        article h3 {
            color: #1e607f;
            margin-top: 1.2em;
        }

        article p {
            line-height: 1.7;
        }

        .transition-section {
            background: #E1F4FE;
            padding: 1.5em;
            margin-bottom: 2em;
            border-radius: 0.5em;
            border-left: 4px solid #349ECF;
        }

        .links-section {
            background: #f9f9f9;
            padding: 2em 1.5em;
            border-radius: 0.5em;
            border-top: 4px solid #51cb1f;
            margin-bottom: 2em;
        }

        .links-section h3 {
            color: #1e607f;
            margin-top: 1.5em;
            margin-bottom: 0.75em;
        }

        .links-section h3:first-child {
            margin-top: 0;
        }

        .links-section ul {
            display: grid;
            grid-template-columns: 1fr;
            gap: 0.5em;
            margin-bottom: 1.5em;
        }

        @media (min-width: 30em) {
            .links-section ul {
                grid-template-columns: 1fr 1fr;
            }
        }

        .links-section li {
            padding-left: 1.5em;
            background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="8" height="8"><circle cx="4" cy="4" r="3" fill="%2351cb1f"/></svg>') no-repeat 0.5em 0.6em;
        }

        .links-section a {
            color: #1e607f;
            display: block;
            padding: 0.25em 0;
        }

        .links-section a:hover {
            color: #51cb1f;
            padding-left: 0.5em;
            transition: padding-left 0.2s;
        }

        .site-footer {
            background-color: #1e607f;
            color: #f2f2f2;
            text-align: center;
            padding: 2em 1em;
            margin-top: 3em;
            font-size: 0.875em;
        }

        .site-footer a {
            color: #f2f2f2;
        }

        .site-footer a:hover {
            color: #51f70d;
        }

        @media (max-width: 48em) {
            h1 {
                font-size: 1.5em;
            }

            article {
                padding: 1em;
            }

            .nav-list {
                flex-direction: column;
                gap: 0.25em;
            }

            .nav-list li {
                width: 100%;
                text-align: center;
            }
        }

        @media (min-width: 48em) {
            .content-wrapper {
                gap: 3em;
            }

            article {
                padding: 2em;
            }
        }