:root {
        --ground: #fbfbfa;
        --ink: #14161a;
        --muted: #555c66;
        --hairline: #e2e1dd;
        --accent: #1b4d3e;
        --accent-hover: #12362b;
        --measure: 62ch;
    }

    *, *::before, *::after { box-sizing: border-box; }
    body, h1, h2, p, figure, ul { margin: 0; }

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

    body {
        background: var(--ground);
        color: var(--ink);
        font-family: 'Source Serif 4', Georgia, 'Times New Roman', serif;
        font-size: 1.0625rem;
        line-height: 1.65;
        -webkit-font-smoothing: antialiased;
        padding: 0 1.5rem;
    }

    .shell {
        max-width: 42rem;
        margin: 0 auto;
    }

    a { color: inherit; }

    :focus-visible {
        outline: 2px solid var(--accent);
        outline-offset: 3px;
        border-radius: 2px;
    }

    /* ---------- Masthead ---------- */

    .masthead {
        display: flex;
        align-items: center;
        gap: 0.7rem;
        padding: 2.75rem 0 0;
    }

    .masthead img {
        height: 40px;
        width: auto;
    }

    .masthead span {
        font-family: 'Archivo', system-ui, sans-serif;
        font-weight: 600;
        font-size: 0.9rem;
        letter-spacing: 0.08em;
        text-transform: uppercase;
    }

    /* ---------- Opening ---------- */

    .opening { padding: 5.5rem 0 0; }

    h1 {
        font-family: 'Archivo', system-ui, sans-serif;
        font-weight: 700;
        font-size: clamp(2.3rem, 6.2vw, 3.5rem);
        line-height: 1.06;
        letter-spacing: -0.032em;
        text-wrap: balance;
        max-width: 24ch;
    }

    .lede {
        margin-top: 1.75rem;
        max-width: var(--measure);
        font-size: 1.1875rem;
        line-height: 1.6;
        color: var(--muted);
    }

    .lede strong {
        color: var(--ink);
        font-weight: 600;
    }

    /* ---------- Services ---------- */

    .services {
        margin-top: 5rem;
        border-top: 1px solid var(--hairline);
    }

    .service {
        padding: 3rem 0;
        border-bottom: 1px solid var(--hairline);
    }

    .service > * { max-width: var(--measure); }

    .service h2 {
        font-family: 'Archivo', system-ui, sans-serif;
        font-weight: 600;
        letter-spacing: -0.018em;
        line-height: 1.2;
        margin-bottom: 0.85rem;
    }

    .service h2 { font-size: 1.375rem; }

    .service p + p { margin-top: 1rem; }

    .service p { color: var(--muted); }

    /* ---------- Contact ---------- */

    .contact { padding: 4.5rem 0 0; }

    .contact h2 {
        font-family: 'Archivo', system-ui, sans-serif;
        font-weight: 600;
        font-size: 1.3125rem;
        letter-spacing: -0.018em;
        margin-bottom: 0.85rem;
    }

    .contact p {
        color: var(--muted);
        max-width: var(--measure);
    }

    .mailto {
        display: inline-block;
        margin-top: 1.5rem;
        font-family: 'Archivo', system-ui, sans-serif;
        font-size: 1.0625rem;
        font-weight: 600;
        color: var(--accent);
        text-decoration: none;
        border-bottom: 2px solid rgba(27, 77, 62, 0.28);
        padding-bottom: 2px;
        transition: color 0.18s ease, border-color 0.18s ease;
    }

    .mailto:hover {
        color: var(--accent-hover);
        border-bottom-color: var(--accent-hover);
    }

    /* ---------- Footer ---------- */

    footer {
        margin-top: 6rem;
        padding: 1.75rem 0 3rem;
        border-top: 1px solid var(--hairline);
        display: flex;
        justify-content: space-between;
        align-items: baseline;
        flex-wrap: wrap;
        gap: 0.75rem 1.5rem;
        font-family: 'Archivo', system-ui, sans-serif;
        font-size: 0.8125rem;
        color: var(--muted);
    }

    .footer-links {
        display: flex;
        gap: 1.5rem;
        list-style: none;
        padding: 0;
    }

    .footer-links a {
        text-decoration: none;
        transition: color 0.18s ease;
    }

    .footer-links a:hover { color: var(--ink); }

    /* ---------- Entrance ---------- */

    @media (prefers-reduced-motion: no-preference) {
        .reveal {
            opacity: 0;
            transform: translateY(10px);
            animation: rise 0.75s cubic-bezier(0.16, 1, 0.3, 1) forwards;
        }
        .reveal:nth-child(1) { animation-delay: 0.05s; }
        .reveal:nth-child(2) { animation-delay: 0.16s; }
        .reveal:nth-child(3) { animation-delay: 0.26s; }
    }

    @keyframes rise {
        to { opacity: 1; transform: translateY(0); }
    }

    @media (max-width: 34rem) {
        body { padding: 0 1.25rem; }
        .opening { padding-top: 3.75rem; }
        .services { margin-top: 4rem; }
        .service { padding: 2.5rem 0; }
        footer { flex-direction: column; }
    }

    /* ---------- Document pages (privacy, terms, 404) ---------- */

    .doc { padding: 4rem 0 0; counter-reset: sec; }

    .doc h1 {
        font-size: clamp(1.9rem, 4.6vw, 2.5rem);
        max-width: 20ch;
        margin-bottom: 0.6rem;
    }

    .doc .updated {
        font-family: 'Archivo', system-ui, sans-serif;
        font-size: 0.8125rem;
        color: var(--muted);
        letter-spacing: 0.01em;
    }

    .doc .intro {
        margin-top: 2rem;
        padding-top: 2rem;
        border-top: 1px solid var(--hairline);
        max-width: var(--measure);
    }

    /* Contents */

    .toc {
        margin: 2.5rem 0 0;
        padding: 1.5rem 0;
        border-top: 1px solid var(--hairline);
        border-bottom: 1px solid var(--hairline);
        list-style: none;
        columns: 2;
        column-gap: 2.5rem;
    }

    .toc li {
        font-family: 'Archivo', system-ui, sans-serif;
        font-size: 0.8125rem;
        line-height: 1.9;
        break-inside: avoid;
    }

    .toc a {
        color: var(--muted);
        text-decoration: none;
        transition: color 0.18s ease;
    }

    .toc a:hover { color: var(--accent); }

    .toc li::before { content: none; }

    .toc .num {
        display: inline-block;
        min-width: 1.6em;
        color: #9aa0a8;
        font-variant-numeric: tabular-nums;
    }

    /* Sections */

    .doc section { scroll-margin-top: 2rem; }

    .doc h2 {
        counter-increment: sec;
        position: relative;
        font-family: 'Archivo', system-ui, sans-serif;
        font-weight: 600;
        font-size: 1.0625rem;
        letter-spacing: -0.008em;
        line-height: 1.35;
        margin: 3.25rem 0 0.9rem;
        max-width: var(--measure);
    }

    .doc h2::before {
        content: counter(sec) ".";
        position: absolute;
        left: -3.25rem;
        top: 0;
        width: 2.5rem;
        text-align: right;
        color: #9aa0a8;
        font-variant-numeric: tabular-nums;
        font-weight: 500;
    }

    .doc h3 {
        font-family: 'Archivo', system-ui, sans-serif;
        font-weight: 600;
        font-size: 0.9375rem;
        margin: 1.75rem 0 0.6rem;
        max-width: var(--measure);
    }

    .doc p, .doc li { max-width: var(--measure); }

    .doc p {
        margin-bottom: 1rem;
        font-size: 1rem;
        line-height: 1.7;
    }

    .doc ul {
        margin: 0 0 1.25rem;
        padding-left: 1.15rem;
        list-style: none;
    }

    .doc li {
        position: relative;
        margin-bottom: 0.55rem;
        font-size: 1rem;
        line-height: 1.7;
    }

    .doc li::before {
        content: "";
        position: absolute;
        left: -1.15rem;
        top: 0.78em;
        width: 5px;
        height: 1px;
        background: #9aa0a8;
    }

    .doc strong { font-weight: 600; color: var(--ink); }
    .doc a { color: var(--accent); text-underline-offset: 3px; }

    .doc .contact-block {
        margin-top: 1rem;
        padding: 1.25rem 0 0;
        border-top: 1px solid var(--hairline);
        max-width: var(--measure);
    }

    .back {
        display: inline-block;
        margin-top: 3.5rem;
        font-family: 'Archivo', system-ui, sans-serif;
        font-size: 0.875rem;
        font-weight: 600;
        color: var(--accent);
        text-decoration: none;
        border-bottom: 2px solid rgba(27, 77, 62, 0.28);
        padding-bottom: 2px;
    }

    .back:hover { color: var(--accent-hover); border-bottom-color: var(--accent-hover); }

    @media (min-width: 60rem) {
        .doc { padding-left: 3.25rem; }
    }

    @media (max-width: 40rem) {
        .toc { columns: 1; }
        .doc h2 { margin-top: 2.75rem; padding-left: 0; }
        .doc h2::before {
            position: static;
            width: auto;
            margin-right: 0.4rem;
        }
    }