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

:root {
    --vx-bg: #f0f5f3;
    --vx-surface: #ffffff;
    --vx-accent: #3e6f63;
    --vx-accent-deep: #2f574d;
    --vx-ink: #232b29;
    --vx-soft: #4e615b;
    --vx-rule: #d7e3df;
    --vx-foot: #dde8e4;
    --vx-sans: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
    --vx-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
    --vx-rad-s: 5px;
    --vx-rad-m: 10px;
    --vx-rad-l: 14px;
    --vx-lift: 0 4px 14px rgba(35, 43, 41, .07);
}

html { scroll-behavior: smooth; }

body {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    background: var(--vx-bg);
    font-family: var(--vx-sans);
    color: var(--vx-ink);
    font-size: 16px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--vx-accent);
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color .2s ease;
}
a:hover { color: var(--vx-accent-deep); }

/* ---------- header: single element, therefore centred ---------- */
.vx-top {
    padding: 18px 20px;
    text-align: center;
    background: var(--vx-surface);
    border-bottom: 1px solid var(--vx-rule);
}
.vx-top__logo {
    display: inline-block;
    font-size: 19px;
    font-weight: 700;
    letter-spacing: .26em;
    text-indent: .26em;
    text-transform: uppercase;
    color: var(--vx-accent);
    text-decoration: none;
}
.vx-top__logo:hover { color: var(--vx-accent-deep); }

/* ---------- page opening ---------- */
.vx-paper {
    width: 100%;
    max-width: 960px;
    margin: 0 auto;
    padding: 44px 24px 22px;
}
.vx-paper__stamp {
    font-family: var(--vx-mono);
    font-size: 12px;
    line-height: 1.5;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--vx-accent);
    margin-bottom: 12px;
}
.vx-paper__title {
    font-size: clamp(26px, 4.2vw, 42px);
    font-weight: 800;
    line-height: 1.22;
    letter-spacing: -.01em;
    color: var(--vx-ink);
    padding-bottom: 20px;
    border-bottom: 3px solid var(--vx-accent);
}

/* ---------- documentation ledger ---------- */
.vx-ledger {
    width: 100%;
    max-width: 960px;
    margin: 0 auto;
    padding: 0 24px 56px;
}
.vx-ledger__row {
    display: grid;
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 0 34px;
    padding: 28px 0;
    border-bottom: 1px solid var(--vx-rule);
}
.vx-ledger__row:last-child { border-bottom: none; }
.vx-ledger__tag {
    position: sticky;
    top: 18px;
    align-self: start;
    font-family: var(--vx-mono);
    font-size: 12px;
    line-height: 1.6;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--vx-accent);
    word-break: break-word;
}
.vx-ledger__heading {
    font-size: clamp(18px, 2.3vw, 23px);
    font-weight: 700;
    line-height: 1.32;
    color: var(--vx-ink);
    margin: 0 0 10px;
}
.vx-ledger__body > p { margin-bottom: 12px; color: var(--vx-soft); }
.vx-ledger__body > p:last-child { margin-bottom: 0; }
.vx-ledger__body strong { color: var(--vx-ink); font-weight: 700; }

@media (max-width: 720px) {
    .vx-ledger__row {
        grid-template-columns: minmax(0, 1fr);
        gap: 8px 0;
        padding: 22px 0;
    }
    .vx-ledger__tag { position: static; top: auto; }
    .vx-paper { padding-top: 34px; }
}

/* ---------- lists ---------- */
.vx-list {
    margin: 0 0 12px;
    padding-left: 0;
    list-style: none;
    color: var(--vx-soft);
}
.vx-list li {
    position: relative;
    padding-left: 22px;
    margin-bottom: 8px;
}
.vx-list li:last-child { margin-bottom: 0; }
.vx-list li::before {
    content: "";
    position: absolute;
    left: 1px;
    top: .72em;
    width: 9px;
    height: 2px;
    background: var(--vx-accent);
}
.vx-list--num {
    counter-reset: vxOrder;
    list-style: none;
}
.vx-list--num li {
    counter-increment: vxOrder;
    padding-left: 32px;
}
.vx-list--num li::before {
    content: counter(vxOrder, decimal-leading-zero);
    position: absolute;
    left: 0;
    top: 0;
    width: auto;
    height: auto;
    background: none;
    font-family: var(--vx-mono);
    font-size: 13px;
    font-weight: 700;
    color: var(--vx-accent);
}

/* ---------- flagged note ---------- */
.vx-flag {
    margin: 14px 0;
    padding: 15px 17px;
    background: var(--vx-surface);
    border: 1px solid var(--vx-rule);
    border-left: 4px solid var(--vx-accent);
    border-radius: 0 var(--vx-rad-m) var(--vx-rad-m) 0;
}
.vx-flag p { margin: 0; font-size: 15px; color: var(--vx-ink); }

/* ---------- key / value rows ---------- */
.vx-defs {
    margin: 12px 0;
    display: grid;
    gap: 8px;
}
.vx-defs__row {
    display: grid;
    grid-template-columns: minmax(150px, 36%) minmax(0, 1fr);
    gap: 4px 18px;
    padding: 11px 14px;
    background: var(--vx-surface);
    border: 1px solid var(--vx-rule);
    border-radius: var(--vx-rad-m);
    box-shadow: var(--vx-lift);
    font-size: 15px;
}
.vx-defs__key {
    font-family: var(--vx-mono);
    font-size: 13px;
    letter-spacing: .04em;
    text-transform: uppercase;
    color: var(--vx-accent-deep);
}
.vx-defs__val { color: var(--vx-soft); }
@media (max-width: 560px) {
    .vx-defs__row { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- chips ---------- */
.vx-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 12px 0;
}
.vx-chip {
    display: inline-block;
    padding: 5px 12px;
    border-radius: 999px;
    background: var(--vx-surface);
    border: 1px solid var(--vx-rule);
    font-family: var(--vx-mono);
    font-size: 12px;
    letter-spacing: .04em;
    color: var(--vx-accent-deep);
}

/* ---------- sheet ---------- */
.vx-sheet {
    width: 100%;
    margin: 14px 0;
    border-collapse: collapse;
    font-size: 15px;
    background: var(--vx-surface);
    border: 1px solid var(--vx-rule);
    border-radius: var(--vx-rad-m);
    overflow: hidden;
}
.vx-sheet th {
    padding: 11px 14px;
    text-align: left;
    background: rgba(62, 111, 99, .1);
    border-bottom: 1px solid var(--vx-rule);
    font-family: var(--vx-mono);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--vx-accent-deep);
}
.vx-sheet td {
    padding: 11px 14px;
    border-top: 1px solid var(--vx-rule);
    color: var(--vx-soft);
}
.vx-sheet tbody tr:first-child td { border-top: none; }

/* ---------- closing note ---------- */
.vx-endnote {
    width: 100%;
    max-width: 960px;
    margin: 0 auto;
    padding: 0 24px 54px;
}
.vx-endnote__inner {
    padding: 18px 20px;
    background: var(--vx-surface);
    border: 1px dashed rgba(62, 111, 99, .5);
    border-radius: var(--vx-rad-l);
    font-size: 15px;
    line-height: 1.7;
    color: var(--vx-soft);
}

/* ---------- footer ---------- */
.vx-foot {
    margin-top: auto;
    flex-shrink: 0;
    padding: 26px 20px 24px;
    text-align: center;
    background: var(--vx-foot);
    border-top: 1px solid var(--vx-rule);
}
.vx-foot__inner {
    max-width: 900px;
    margin: 0 auto;
}
.vx-foot__nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px 22px;
    margin-bottom: 14px;
}
.vx-foot__nav a {
    font-size: 12px;
    color: var(--vx-accent-deep);
    text-decoration: none;
    border-bottom: 1px solid rgba(62, 111, 99, .45);
    padding-bottom: 2px;
}
.vx-foot__nav a:hover {
    color: var(--vx-ink);
    border-bottom-color: var(--vx-ink);
}
.vx-foot__copy {
    font-size: 12px;
    color: #3f4f4a;
    margin-bottom: 10px;
}
.vx-foot__legal {
    max-width: 760px;
    margin: 0 auto;
    font-size: 11px;
    line-height: 1.75;
    color: #4a5a54;
}