@charset "utf-8";

:root {
    --paper: #ECEFE8;
    --paper-deep: #E2E7DE;
    --ink: #1B2620;
    --ink-soft: #3D4A43;
    --sage: #6B7668;
    --plum: #5B2B45;
    --plum-lift: #7A3C5C;
    --rule: #C6CFC2;
    --rule-fine: #D6DDD2;
    --serif: "Alegreya", Georgia, "Times New Roman", serif;
    --sans: "Archivo", "Helvetica Neue", Arial, sans-serif;
    --wide: 1120px;
    --column: 704px;
}

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

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

body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: var(--sans);
    font-size: 17px;
    line-height: 1.65;
    font-weight: 400;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--plum); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--plum-lift); }

h1, h2, h3, h4 {
    font-family: var(--serif);
    font-weight: 500;
    line-height: 1.2;
    margin: 0;
}

.dab-shell {
    width: 100%;
    max-width: var(--wide);
    margin: 0 auto;
    padding: 0 28px;
}

.dab-skip {
    position: absolute;
    left: -9999px;
}
.dab-skip:focus {
    left: 12px;
    top: 12px;
    z-index: 50;
    background: var(--plum);
    color: var(--paper);
    padding: 10px 16px;
}

/* ---------- masthead ---------- */

.dab-head {
    border-bottom: 1px solid var(--rule);
    padding: 30px 0 0;
}

.dab-mark {
    display: block;
    text-decoration: none;
    color: inherit;
}

.dab-mark-name {
    font-family: var(--serif);
    font-size: 2.15rem;
    font-weight: 500;
    letter-spacing: -0.005em;
    line-height: 1.05;
    display: block;
}

.dab-mark-name em {
    font-style: italic;
    color: var(--plum);
}

.dab-mark-line {
    display: block;
    margin-top: 7px;
    font-size: 0.735rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--sage);
    font-weight: 500;
}

.dab-nav {
    margin-top: 24px;
    border-top: 1px solid var(--rule-fine);
    display: flex;
    flex-wrap: wrap;
    gap: 0 30px;
}

.dab-nav a {
    display: inline-block;
    padding: 13px 0;
    font-size: 0.75rem;
    letter-spacing: 0.13em;
    text-transform: uppercase;
    font-weight: 600;
    color: var(--ink-soft);
    text-decoration: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
}

.dab-nav a:hover,
.dab-nav a[aria-current="page"] {
    color: var(--plum);
    border-bottom-color: var(--plum);
}

/* ---------- front matter ---------- */

.dab-front {
    padding: 62px 0 54px;
    border-bottom: 1px solid var(--rule);
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 54px;
    align-items: start;
}

.dab-front h1 {
    font-size: clamp(2.3rem, 4.6vw, 3.4rem);
    letter-spacing: -0.015em;
}

.dab-front h1 em {
    font-style: italic;
    color: var(--plum);
}

.dab-front-lead {
    margin: 22px 0 0;
    font-size: 1.14rem;
    line-height: 1.62;
    color: var(--ink-soft);
}

.dab-front-aside {
    border-left: 2px solid var(--plum);
    padding-left: 22px;
    font-size: 0.94rem;
    line-height: 1.62;
    color: var(--ink-soft);
}

.dab-front-aside p { margin: 0 0 13px; }
.dab-front-aside p:last-child { margin-bottom: 0; }

.dab-front-aside b {
    font-weight: 600;
    color: var(--ink);
}

/* ---------- register bands ---------- */

.dab-section {
    padding: 52px 0 8px;
}

.dab-section-head {
    display: flex;
    align-items: baseline;
    gap: 18px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--ink);
}

.dab-section-head h2 {
    font-size: 1.55rem;
    letter-spacing: -0.005em;
}

.dab-section-head span {
    font-size: 0.72rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--sage);
    font-weight: 600;
    margin-left: auto;
}

.dab-band {
    display: grid;
    grid-template-columns: 74px minmax(0, 1fr) 208px;
    gap: 26px;
    padding: 30px 0;
    border-bottom: 1px solid var(--rule-fine);
    align-items: start;
}

.dab-num {
    font-family: var(--serif);
    font-size: 2.5rem;
    font-weight: 500;
    line-height: 0.92;
    color: var(--plum);
    font-variant-numeric: lining-nums;
}

.dab-band-title {
    font-size: 1.42rem;
    line-height: 1.24;
    margin: 0 0 9px;
}

.dab-band-title a {
    color: var(--ink);
    text-decoration: none;
    background-image: linear-gradient(var(--plum), var(--plum));
    background-size: 0 1px;
    background-repeat: no-repeat;
    background-position: 0 100%;
    transition: background-size 0.22s ease;
}

.dab-band-title a:hover {
    color: var(--plum);
    background-size: 100% 1px;
}

.dab-band-dek {
    margin: 0 0 13px;
    color: var(--ink-soft);
    font-size: 1rem;
    line-height: 1.6;
}

.dab-strip {
    margin: 0;
    padding: 0;
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 7px 0;
    font-size: 0.755rem;
    letter-spacing: 0.075em;
    text-transform: uppercase;
    color: var(--sage);
    font-weight: 600;
}

.dab-strip li { display: inline-flex; align-items: center; }

.dab-strip li:not(:last-child)::after {
    content: "";
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: var(--rule);
    margin: 0 12px;
}

.dab-band-thumb {
    margin: 0;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: var(--paper-deep);
}

.dab-band-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: saturate(0.92);
}

/* ---------- article ---------- */

.dab-crumb {
    padding: 26px 0 0;
    font-size: 0.755rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--sage);
    font-weight: 600;
}

.dab-crumb a { color: var(--sage); text-decoration: none; }
.dab-crumb a:hover { color: var(--plum); }
.dab-crumb span { margin: 0 9px; color: var(--rule); }

.dab-entry-head {
    max-width: var(--column);
    padding: 30px 0 40px;
    border-bottom: 1px solid var(--rule);
    margin-bottom: 42px;
}

.dab-entry-meta {
    display: flex;
    align-items: baseline;
    gap: 16px;
    margin-bottom: 18px;
}

.dab-entry-meta .dab-num { font-size: 1.9rem; }

.dab-entry-meta span {
    font-size: 0.735rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--sage);
    font-weight: 600;
}

.dab-entry-head h1 {
    font-size: clamp(2.05rem, 4vw, 2.85rem);
    letter-spacing: -0.015em;
    margin-bottom: 18px;
}

.dab-entry-dek {
    margin: 0;
    font-size: 1.14rem;
    line-height: 1.6;
    color: var(--ink-soft);
}

.dab-layout {
    display: grid;
    grid-template-columns: minmax(0, var(--column)) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
    padding-bottom: 60px;
}

.dab-prose { min-width: 0; }

.dab-prose p {
    margin: 0 0 20px;
}

.dab-prose h2 {
    font-size: 1.62rem;
    margin: 42px 0 16px;
    padding-top: 15px;
    border-top: 1px solid var(--rule-fine);
}

.dab-prose h3 {
    font-size: 1.22rem;
    margin: 30px 0 12px;
    font-weight: 500;
}

.dab-prose ul,
.dab-prose ol {
    margin: 0 0 20px;
    padding-left: 22px;
}

.dab-prose li { margin-bottom: 8px; }

.dab-prose strong { font-weight: 600; }

/* sticky facts rail */

.dab-rail {
    position: sticky;
    top: 26px;
    font-size: 0.9rem;
}

.dab-facts {
    margin: 0;
    padding: 20px 22px;
    list-style: none;
    background: var(--paper-deep);
    border-top: 3px solid var(--plum);
}

.dab-facts li {
    padding: 9px 0;
    border-bottom: 1px solid var(--rule-fine);
    line-height: 1.5;
}

.dab-facts li:last-child { border-bottom: 0; padding-bottom: 0; }

.dab-facts b {
    display: block;
    font-size: 0.7rem;
    letter-spacing: 0.13em;
    text-transform: uppercase;
    color: var(--sage);
    font-weight: 600;
    margin-bottom: 3px;
}

.dab-toc {
    margin: 26px 0 0;
    padding: 0 0 0 22px;
    border-left: 1px solid var(--rule);
}

.dab-toc-label {
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--sage);
    font-weight: 600;
    margin: 0 0 11px;
}

.dab-toc ol {
    margin: 0;
    padding: 0;
    list-style: none;
    counter-reset: toc;
}

.dab-toc li {
    counter-increment: toc;
    margin-bottom: 9px;
    line-height: 1.42;
}

.dab-toc a {
    color: var(--ink-soft);
    text-decoration: none;
    font-size: 0.895rem;
}

.dab-toc a::before {
    content: counter(toc, decimal-leading-zero) "  ";
    color: var(--sage);
    font-variant-numeric: tabular-nums;
}

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

/* ---------- prose furniture ---------- */

.dab-fig {
    margin: 32px 0;
}

.dab-fig img { width: 100%; }

.dab-fig figcaption {
    margin-top: 10px;
    font-size: 0.855rem;
    line-height: 1.5;
    color: var(--sage);
    padding-left: 13px;
    border-left: 2px solid var(--rule);
}

.dab-note {
    margin: 30px 0;
    padding: 22px 24px;
    background: var(--paper-deep);
    font-size: 0.965rem;
    line-height: 1.6;
}

.dab-note-label {
    display: block;
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--plum);
    font-weight: 600;
    margin-bottom: 9px;
}

.dab-note p { margin: 0 0 12px; }
.dab-note p:last-child { margin-bottom: 0; }

.dab-callout {
    margin: 30px 0;
    padding: 4px 0 4px 22px;
    border-left: 3px solid var(--plum);
    font-size: 0.965rem;
    line-height: 1.6;
}

.dab-callout p { margin: 0 0 12px; }
.dab-callout p:last-child { margin-bottom: 0; }

.dab-prose blockquote {
    margin: 32px 0;
    padding: 0;
    font-family: var(--serif);
    font-size: 1.33rem;
    font-style: italic;
    line-height: 1.42;
    color: var(--plum);
    max-width: 90%;
}

.dab-prose blockquote p { margin: 0; }

.dab-table-wrap {
    margin: 30px 0;
    overflow-x: auto;
}

.dab-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    min-width: 460px;
}

.dab-table caption {
    text-align: left;
    font-size: 0.7rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--sage);
    font-weight: 600;
    padding-bottom: 11px;
}

.dab-table th,
.dab-table td {
    text-align: left;
    padding: 11px 14px 11px 0;
    border-bottom: 1px solid var(--rule-fine);
    vertical-align: top;
}

.dab-table thead th {
    border-bottom: 2px solid var(--ink);
    font-size: 0.7rem;
    letter-spacing: 0.11em;
    text-transform: uppercase;
    color: var(--ink);
    font-weight: 600;
}

.dab-table tbody th { font-weight: 600; }

/* ---------- related ---------- */

.dab-rel {
    border-top: 2px solid var(--ink);
    padding: 30px 0 66px;
    max-width: var(--column);
}

.dab-rel-label {
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--sage);
    font-weight: 600;
    margin: 0 0 18px;
}

.dab-rel ul {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 14px;
}

.dab-rel a {
    font-family: var(--serif);
    font-size: 1.18rem;
    color: var(--ink);
    text-decoration: none;
    line-height: 1.3;
    display: inline-block;
}

.dab-rel a:hover { color: var(--plum); }

/* ---------- method page ---------- */

.dab-method {
    max-width: var(--column);
    padding: 46px 0 66px;
}

.dab-method h1 {
    font-size: clamp(2.05rem, 4vw, 2.85rem);
    margin-bottom: 20px;
    letter-spacing: -0.015em;
}

.dab-method h2 {
    font-size: 1.42rem;
    margin: 38px 0 14px;
    padding-top: 14px;
    border-top: 1px solid var(--rule-fine);
}

.dab-method p { margin: 0 0 19px; }

.dab-method ul { margin: 0 0 19px; padding-left: 22px; }
.dab-method li { margin-bottom: 9px; }

/* ---------- footer ---------- */

.dab-foot {
    border-top: 2px solid var(--ink);
    padding: 34px 0 46px;
    font-size: 0.83rem;
    color: var(--sage);
}

.dab-foot-top {
    display: flex;
    flex-wrap: wrap;
    gap: 18px 40px;
    align-items: baseline;
    justify-content: space-between;
    padding-bottom: 22px;
}

.dab-foot-name {
    font-family: var(--serif);
    font-size: 1.32rem;
    color: var(--ink);
    font-weight: 500;
}

.dab-foot-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 24px;
}

.dab-foot-nav a {
    color: var(--sage);
    text-decoration: none;
    font-size: 0.755rem;
    letter-spacing: 0.11em;
    text-transform: uppercase;
    font-weight: 600;
}

.dab-foot-nav a:hover { color: var(--plum); }

.dab-foot-base {
    border-top: 1px solid var(--rule-fine);
    padding-top: 18px;
    line-height: 1.6;
}

/* ---------- responsive ---------- */

@media (max-width: 940px) {
    .dab-front {
        grid-template-columns: 1fr;
        gap: 34px;
        padding: 46px 0 42px;
    }
    .dab-layout {
        grid-template-columns: 1fr;
        gap: 38px;
    }
    .dab-rail {
        position: static;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
        gap: 26px;
        align-items: start;
    }
    .dab-toc { margin-top: 0; }
}

@media (max-width: 720px) {
    body { font-size: 16px; }
    .dab-shell { padding: 0 20px; }
    .dab-band {
        grid-template-columns: 52px minmax(0, 1fr);
        gap: 18px;
        padding: 24px 0;
    }
    .dab-num { font-size: 1.95rem; }
    .dab-band-thumb {
        grid-column: 1 / -1;
        aspect-ratio: 16 / 9;
        margin-top: 4px;
    }
    .dab-mark-name { font-size: 1.72rem; }
    .dab-nav { gap: 0 20px; }
    .dab-prose blockquote { font-size: 1.18rem; max-width: 100%; }
}