:root {
    --paper: #f3f7fa;
    --surface: #ffffff;
    --mist: #e8f0f5;
    --marine: #527384;
    --marine-deep: #48687a;
    --text: #4b6171;
    --muted: #668091;
    --border: #d6e3e9;
    --gold: #bb8a3d;
    --gold-light: #ebcf8c;
    --gold-pale: #fff7dc;
    --violet: #756d8d;
}
* { box-sizing: border-box; }
html { scroll-behavior: auto; }
body { margin: 0; background: var(--paper); color: var(--text); font-family: 'Segoe UI', Arial, Helvetica, sans-serif; line-height: 1.7; }
a { color: var(--marine-deep); text-underline-offset: 3px; }
a:hover { color: var(--gold); }
a:focus-visible, button:focus-visible { outline: 3px solid #ae823a; outline-offset: 4px; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.18; letter-spacing: -.025em; }
h1 { font-size: 40px; font-weight: 750; color: var(--marine-deep); margin: 17px 0 23px; max-width: 15ch; overflow-wrap: anywhere; }
h2 { font-size: 28px; color: var(--marine-deep); font-weight: 740; }
h3 { font-size: 20px; color: var(--marine-deep); font-weight: 710; }
p { font-size: 16px; line-height: 1.78; margin-bottom: 17px; }
.shell { width: min(100% - 70px, 1530px); margin: 0 auto; }
.skip-link { position: fixed; top: -90px; left: 22px; z-index: 100; background: var(--surface); padding: 10px 18px; border: 2px solid var(--gold); }
.skip-link:focus { top: 12px; }
.site-header { background: rgba(255,255,255,.98); border-bottom: 1px solid var(--border); }
.header-inner { display: flex; min-height: 96px; align-items: center; justify-content: space-between; gap: 32px; }
.signature { display: flex; align-items: center; min-width: 208px; gap: 11px; text-decoration: none; color: var(--marine-deep); line-height: 1.25; }
.signature strong { display: block; font-size: 17px; font-weight: 760; letter-spacing: -.025em; }
.signature small { display: block; font-size: 10px; font-weight: 680; color: var(--muted); letter-spacing: .035em; margin-top: 4px; }
.signature-icon { width: 38px; height: 41px; flex-shrink: 0; display: block; position: relative; }
.signature-icon span { display: block; position: absolute; border: 2px solid var(--gold); width: 26px; height: 31px; transform: rotate(-8deg); background: var(--gold-pale); left: 3px; top: 2px; border-radius: 3px; }
.signature-icon span + span { left: 10px; top: 8px; transform: rotate(6deg); background: #f6fafd; }
.main-nav { display: flex; align-items: center; justify-content: flex-end; gap: clamp(9px,1vw,17px); flex-wrap: wrap; }
.main-nav a { font-size: 12px; font-weight: 720; text-decoration: none; white-space: nowrap; color: var(--marine-deep); border-bottom: 2px solid transparent; padding: 7px 0; }
.main-nav a:hover, .main-nav a[aria-current="page"] { color: #ac813e; border-bottom-color: var(--gold); }
.menu-toggle { display: none; }
.masthead { display: grid; grid-template-columns: minmax(0,1.07fr) minmax(0,.93fr); gap: clamp(26px,3.5vw,63px); align-items: stretch; padding: 44px 0 48px; border-bottom: 1px solid var(--border); }
.hero-copy { padding: 17px 0; align-self: center; }
.eyebrow { display: inline-block; font-size: 12px; font-weight: 740; text-transform: uppercase; letter-spacing: .11em; color: var(--gold); }
.hero-copy .lead { font-size: 18px; line-height: 1.65; font-weight: 610; color: var(--marine-deep); }
.hero-copy > p:not(.lead) { max-width: 66ch; }
.hero-quicklinks { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 29px; }
.hero-quicklinks a { display: inline-block; padding: 12px 17px; text-decoration: none; border: 1px solid var(--marine); background: var(--marine); color: white; border-radius: 4px; font-size: 13px; font-weight: 710; }
.hero-quicklinks a + a { color: var(--marine-deep); background: transparent; border-color: var(--border); }
.hero-quicklinks a:hover { background: var(--gold); color: white; border-color: var(--gold); }
.hero-board { background: linear-gradient(153deg,#edf4f8,#e3eef4); border: 1px solid #cfdee7; padding: 21px 25px 25px; min-height: 365px; position: relative; display: flex; flex-direction: column; justify-content: space-between; isolation: isolate; overflow: hidden; }
.hero-board::before { content: ''; position: absolute; border: 1px solid #c7d9e2; inset: 64px 20px 20px; z-index: -1; }
.board-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; line-height: 1; }
.board-name { font-size: 29px; font-weight: 740; color: var(--gold); letter-spacing: -.04em; }
.board-name span { font-size: 11px; vertical-align: super; letter-spacing: 0; }
.board-mark { font-size: 11px; font-weight: 700; color: var(--marine); text-transform: uppercase; letter-spacing: .08em; margin-top: 6px; }
.board-coin { width: 102px; height: 102px; position: absolute; right: 34px; top: 76px; transform: rotate(-18deg); background: #dfc27d; border: 4px double #b1873e; border-radius: 50%; display: grid; place-items: center; box-shadow: 12px 16px 0 #d2b36c; }
.board-coin::after { content: ''; width: 78px; height: 78px; position: absolute; border: 1px dashed #ad873e; border-radius: 50%; }
.board-coin span { font-size: 36px; font-weight: 750; color: #987239; letter-spacing: -.07em; }
.board-coin i { position: absolute; font-size: 11px; top: 69px; font-style: normal; color: #987239; }
.board-facts { position: relative; display: grid; gap: 7px; margin-top: 105px; }
.board-fact { display: grid; grid-template-columns: minmax(115px,.56fr) 1fr; gap: 15px; align-items: center; padding: 12px 10px; background: rgba(255,255,255,.87); border-left: 3px solid var(--gold); }
.board-fact strong { font-size: clamp(18px,2.3vw,28px); line-height: 1.2; letter-spacing: -.04em; color: var(--marine-deep); white-space: normal; }
.board-fact span { color: var(--muted); font-weight: 650; font-size: 12px; line-height: 1.45; }
.chapter-list { display: grid; }
.chapter { padding: 48px 0 50px; border-bottom: 1px solid var(--border); }
.chapter-head { display: flex; align-items: baseline; gap: 22px; margin-bottom: 20px; }
.chapter-index { font-size: 12px; letter-spacing: .08em; font-weight: 820; color: var(--gold); border-bottom: 2px solid var(--gold); padding-bottom: 4px; flex: 0 0 auto; }
.chapter-head h2 { margin: 0; }
.prose-grid { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: clamp(32px,5vw,88px); }
.prose-grid p { margin-bottom: 22px; }
.duo-cards { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 20px; margin-top: 13px; }
.note-card { background: white; border: 1px solid var(--border); border-top: 3px solid #aac2ce; padding: 23px 26px 19px; }
.note-n { display: block; color: var(--gold); font-weight: 820; font-size: 11px; margin-bottom: 8px; }
.note-card h3 { margin-bottom: 9px; }
.note-card p { margin-bottom: 0; }
.table-frame { max-width: 100%; overflow-x: auto; border: 1px solid var(--border); background: white; margin: 8px 0 0; }
table { width: 100%; border-collapse: collapse; border-spacing: 0; text-align: left; }
caption { caption-side: bottom; text-align: left; font-size: 12px; line-height: 1.55; color: var(--muted); padding: 11px 18px; background: #f8fbfd; }
th { background: #e7f0f5; text-align: left; color: var(--marine-deep); font-size: 13px; font-weight: 750; padding: 14px 17px; }
td { padding: 13px 17px; color: var(--text); font-size: 14px; line-height: 1.5; border-top: 1px solid var(--border); }
tbody tr:nth-child(even) { background: #f6fafc; }
.source-line { font-size: 12px; line-height: 1.7; color: var(--muted); margin: 13px 0 0; }
.source-line strong { color: var(--marine); }
.topic-links { display: flex; flex-wrap: wrap; gap: 12px; margin: 12px 0 5px; }
.topic-links a { font-size: 13px; font-weight: 700; background: white; border: 1px solid var(--border); padding: 10px 14px; text-decoration: none; }
.topic-links a span { color: var(--gold); }
.closing-nav { display: grid; grid-template-columns: minmax(0,.7fr) minmax(0,1.3fr); align-items: center; gap: 30px; padding: 40px 0 60px; }
.closing-nav h2 { margin: 0; }
.closing-links { display: flex; flex-wrap: wrap; gap: 10px; }
.closing-links a { padding: 10px 15px; background: white; border: 1px solid var(--border); font-weight: 700; font-size: 13px; text-decoration: none; }
.closing-links a:hover { border-color: var(--gold); }
.site-footer { background: #e3edf3; border-top: 1px solid #cedde5; }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 25px; padding: 28px 0; }
.footer-title { display: flex; flex-direction: column; line-height: 1.4; }
.footer-title strong { color: var(--marine-deep); font-size: 15px; }
.footer-title span, .footer-date { color: var(--muted); font-size: 12px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 18px; }
.site-footer nav a { font-size: 12px; font-weight: 720; text-decoration: none; }
@media (max-width: 1090px) {
    .shell { width: min(100% - 48px,1530px); }
    .header-inner { gap: 15px; }
    .signature { min-width: 190px; }
    .main-nav { column-gap: 11px; }
    .main-nav a { font-size: 11px; }
    .board-fact { grid-template-columns: minmax(85px,.6fr) 1fr; gap: 9px; }
}
@media (max-width: 950px) {
    .header-inner { min-height: 78px; flex-wrap: wrap; position: relative; }
    .menu-toggle { display: inline-flex; align-items: center; gap: 10px; padding: 9px 12px; background: white; border: 1px solid var(--border); color: var(--marine-deep); font: inherit; font-weight: 720; font-size: 14px; cursor: pointer; }
    .menu-lines { width: 18px; height: 15px; display: block; border-top: 2px solid var(--marine); border-bottom: 2px solid var(--marine); position: relative; }
    .menu-lines::after { content: ''; position: absolute; width: 100%; border-top: 2px solid var(--marine); left: 0; top: 5px; }
    .main-nav { display: none; width: 100%; flex-basis: 100%; padding-bottom: 14px; flex-wrap: wrap; justify-content: flex-start; gap: 7px; }
    .main-nav.is-open { display: flex; }
    .main-nav a { font-size: 13px; padding: 8px 10px; background: var(--paper); }
    .masthead { gap: 25px; grid-template-columns: 1.15fr .85fr; }
    .board-coin { width: 70px; height: 70px; right: 18px; top: 75px; }
    .board-coin::after { width: 52px; height: 52px; }
    .board-coin span { font-size: 25px; }
    .board-coin i { top: 46px; }
    .board-fact { display: flex; flex-direction: column; align-items: flex-start; gap: 6px; }
    .board-fact strong { font-size: 19px; }
}
@media (max-width: 750px) {
    .masthead { grid-template-columns: minmax(0,1fr); padding: 30px 0 36px; }
    .hero-copy { padding: 0; }
    .hero-board { min-height: 250px; padding: 19px; }
    .board-facts { margin-top: 65px; grid-template-columns: repeat(2,minmax(0,1fr)); }
    .board-facts:has(.board-fact:nth-child(3)) { grid-template-columns: repeat(3,minmax(0,1fr)); }
    .board-fact strong { font-size: 19px; }
    .board-coin { right: 23px; top: 51px; }
    .prose-grid { grid-template-columns: 1fr; gap: 0; }
    .chapter { padding: 34px 0; }
    .chapter-head { gap: 15px; }
    .closing-nav { grid-template-columns: 1fr; gap: 16px; }
}
@media (max-width: 550px) {
    .shell { width: calc(100% - 32px); }
    h1 { font-size: 40px; }
    h2 { font-size: 28px; }
    p { font-size: 16px; }
    .signature { min-width: 0; }
    .signature strong { font-size: 15px; }
    .signature small { font-size: 9px; }
    .hero-quicklinks { gap: 8px; }
    .hero-quicklinks a { font-size: 12px; }
    .board-facts, .board-facts:has(.board-fact:nth-child(3)) { grid-template-columns: 1fr; margin-top: 74px; }
    .board-fact { flex-direction: row; align-items: center; }
    .board-fact strong { min-width: 102px; }
    .duo-cards { grid-template-columns: 1fr; gap: 12px; }
    .chapter-head { align-items: flex-start; }
    th, td { padding: 11px 10px; font-size: 12px; }
    .board-mark { text-align: right; }
    .footer-inner { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 350px) {
    .signature small { max-width: 165px; }
    .signature-icon { display: none; }
    .hero-quicklinks a { padding: 9px 10px; }
    .chapter-head { gap: 10px; }
}