:root {
            --bg: #f4f6f3;
            --surface: #ffffff;
            --ink: #1f2a24;
            --muted: #5b6b62;
            --accent: #2f6b4f;
            --accent-dark: #1e4a35;
            --accent-soft: #e3efe8;
            --border: #d6dfd9;
            --shadow: 0 10px 30px rgba(31, 42, 36, 0.08);
        }

        * {
            box-sizing: border-box;
        }

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

        body {
            margin: 0;
            padding: 0;
            font-family: "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            font-size: 17px;
            line-height: 1.75;
            color: var(--ink);
            background: var(--bg);
            background-image:
                radial-gradient(circle at 10% 0%, rgba(47, 107, 79, 0.08), transparent 40%),
                radial-gradient(circle at 100% 30%, rgba(47, 107, 79, 0.06), transparent 35%);
            background-attachment: fixed;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 0 16px 56px;
        }

        h1 {
            width: 100%;
            max-width: 920px;
            margin: 48px 0 28px;
            padding: 44px 40px;
            font-size: clamp(1.9rem, 4.5vw, 3rem);
            line-height: 1.2;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: #ffffff;
            background: linear-gradient(135deg, var(--accent-dark), var(--accent));
            border-radius: 20px;
            box-shadow: var(--shadow);
            word-wrap: break-word;
            overflow-wrap: break-word;
        }

        article,
        .transition,
        .links-block {
            width: 100%;
            max-width: 920px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 20px;
            box-shadow: var(--shadow);
            padding: 40px;
            margin-bottom: 28px;
            word-wrap: break-word;
            overflow-wrap: break-word;
        }

        article h2,
        article h3,
        article h4,
        article h5,
        article h6 {
            color: var(--accent-dark);
            line-height: 1.3;
            margin: 1.8em 0 0.6em;
            font-weight: 700;
        }

        article h2 {
            font-size: 1.7rem;
            padding-bottom: 8px;
            border-bottom: 3px solid var(--accent-soft);
        }

        article h3 {
            font-size: 1.4rem;
        }

        article h4 {
            font-size: 1.2rem;
        }

        article > :first-child {
            margin-top: 0;
        }

        article p,
        .transition p {
            margin: 0 0 1.2em;
            color: var(--ink);
        }

        article p:last-child,
        .transition p:last-child {
            margin-bottom: 0;
        }

        article ul,
        article ol {
            padding-left: 1.4em;
            margin: 0 0 1.2em;
        }

        article li {
            margin-bottom: 0.4em;
        }

        article a,
        .transition a {
            color: var(--accent);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        article a:hover,
        .transition a:hover {
            color: var(--accent-dark);
        }

        article blockquote {
            margin: 1.4em 0;
            padding: 16px 24px;
            background: var(--accent-soft);
            border-left: 5px solid var(--accent);
            border-radius: 0 12px 12px 0;
            color: var(--muted);
        }

        article table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.4em 0;
            display: block;
            overflow-x: auto;
        }

        article th,
        article td {
            padding: 10px 14px;
            border: 1px solid var(--border);
            text-align: left;
        }

        article th {
            background: var(--accent-soft);
            color: var(--accent-dark);
        }

        .transition {
            background: var(--accent-soft);
            border-color: #c5d9cd;
            color: var(--muted);
        }

        .links-block {
            border-top: 6px solid var(--accent);
            overflow: hidden;
        }

        .links-block h3 {
            margin: 1.6em 0 0.6em;
            font-size: 1.3rem;
            line-height: 1.3;
            color: var(--accent-dark);
            padding-bottom: 6px;
            border-bottom: 2px solid var(--accent-soft);
        }

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

        .links-block ul {
            list-style: none;
            margin: 0 0 8px;
            padding: 0;
            column-count: 2;
            column-gap: 40px;
        }

        .links-block li {
            break-inside: avoid;
            -webkit-column-break-inside: avoid;
            page-break-inside: avoid;
            padding: 7px 0 7px 18px;
            position: relative;
            border-bottom: 1px dashed var(--border);
            line-height: 1.5;
        }

        .links-block li::before {
            content: "";
            position: absolute;
            left: 0;
            top: 1.05em;
            width: 7px;
            height: 7px;
            background: var(--accent);
            border-radius: 50%;
        }

        .links-block a {
            color: var(--accent);
            text-decoration: none;
            word-break: break-word;
        }

        .links-block a:hover {
            color: var(--accent-dark);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        @media (max-width: 720px) {
            body {
                font-size: 16px;
                padding: 0 12px 40px;
            }

            h1 {
                margin: 24px 0 20px;
                padding: 30px 22px;
                border-radius: 16px;
            }

            article,
            .transition,
            .links-block {
                padding: 24px 20px;
                border-radius: 16px;
                margin-bottom: 20px;
            }

            .links-block ul {
                column-count: 1;
            }
        }