:root {
  --ink: #1d1915;
  --ink-2: #3a332b;
  --muted: #6e6357;
  --paper: #f5f0e6;
  --paper-2: #ece4d4;
  --rule: #d8ccb7;
  --accent: #8b2f22;
  --accent-ink: #6f2419;
  --parch: #efe0bf;
  --parch-dark: #c9ad7a;
  --font-display: 'Boska', 'Georgia', serif;
  --font-body: 'Source Serif 4', 'Georgia', serif;
  --font-ui: 'Satoshi', 'Helvetica Neue', sans-serif;
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1.0625rem;
  --text-lg: clamp(1.15rem, 1rem + 0.5vw, 1.35rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1vw, 2rem);
  --text-2xl: clamp(2rem, 1.4rem + 2.4vw, 3.2rem);
  --text-hero: clamp(2.6rem, 1.6rem + 4.5vw, 5.2rem);
  --measure: 68ch;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.7;
  font-optical-sizing: auto;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--accent-ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: var(--paper); padding: 8px 12px; z-index: 100; }
.skip:focus { left: 8px; }

/* Masthead */
.masthead {
  position: sticky; top: 0; z-index: 50;
  background: var(--ink);
  color: var(--paper);
  border-bottom: 1px solid #000;
}
.masthead-inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px; min-height: 64px; gap: 24px;
}
.brand {
  font-family: var(--font-display); font-weight: 700;
  font-size: 1.5rem; letter-spacing: 0.01em;
  color: var(--paper); text-decoration: none; white-space: nowrap;
}
.brand:hover { color: #fff; }
.menu-toggle { display: none; background: none; border: 0; color: var(--paper); padding: 8px; cursor: pointer; }
.menu-toggle svg { width: 26px; height: 26px; display: block; }

.nav-list { list-style: none; margin: 0; padding: 0; display: flex; gap: 4px; }
.nav-item { position: relative; }
.nav-top {
  font-family: var(--font-ui); font-size: var(--text-sm); font-weight: 500;
  color: #e9e1d3; background: none; border: 0; cursor: pointer;
  padding: 22px 12px; display: inline-flex; align-items: center; gap: 6px;
  letter-spacing: 0.01em;
}
.nav-top svg { width: 12px; height: 12px; transition: transform .2s; opacity: .7; }
.nav-top:hover, .nav-item.open .nav-top { color: #fff; }
.nav-item.is-active .nav-top { color: #fff; box-shadow: inset 0 -2px 0 var(--accent); }
.nav-item.open .nav-top svg { transform: rotate(180deg); }
.dropdown {
  list-style: none; margin: 0; padding: 8px;
  position: absolute; top: 100%; left: 0; min-width: 290px;
  background: var(--paper); border: 1px solid var(--rule);
  box-shadow: 0 18px 40px -18px rgba(0,0,0,.45);
  opacity: 0; visibility: hidden; transform: translateY(-4px);
  transition: opacity .15s, transform .15s, visibility .15s;
}
.nav-item:last-child .dropdown, .nav-item:nth-last-child(2) .dropdown { left: auto; right: 0; }
@media (hover: hover) and (min-width: 961px) {
  .nav-item:hover .dropdown { opacity: 1; visibility: visible; transform: none; }
}
.nav-item.open .dropdown { opacity: 1; visibility: visible; transform: none; }
.dropdown a {
  display: block; padding: 9px 12px; color: var(--ink);
  font-family: var(--font-ui); font-size: var(--text-sm); line-height: 1.35;
  text-decoration: none; border-radius: 2px;
}
.dropdown a:hover { background: var(--paper-2); }
.dropdown a[aria-current="page"] { color: var(--accent); font-weight: 700; }

@media (max-width: 960px) {
  .menu-toggle { display: block; }
  .site-nav {
    position: absolute; top: 64px; left: 0; right: 0;
    background: var(--ink); border-top: 1px solid #000;
    max-height: calc(100vh - 64px); overflow-y: auto;
    display: none;
  }
  .site-nav.open { display: block; }
  .nav-list { flex-direction: column; padding: 8px 12px 20px; gap: 0; }
  .nav-top { width: 100%; justify-content: space-between; padding: 14px 8px; font-size: 1rem; border-bottom: 1px solid #2e2822; }
  .nav-item.is-active .nav-top { box-shadow: none; color: #fff; }
  .dropdown {
    position: static; min-width: 0; box-shadow: none; border: 0; background: transparent;
    display: none; opacity: 1; visibility: visible; transform: none; padding: 4px 0 10px 12px;
  }
  .nav-item.open .dropdown { display: block; }
  .dropdown a { color: #d9cfbf; font-size: 0.95rem; padding: 10px 8px; }
  .dropdown a:hover { background: #2a241e; }
  .dropdown a[aria-current="page"] { color: #fff; }
}

/* Hero */
.hero {
  background:
    radial-gradient(ellipse at 20% 0%, rgba(139,47,34,.10), transparent 55%),
    var(--paper-2);
  border-bottom: 1px solid var(--rule);
}
.hero-inner { max-width: 880px; margin: 0 auto; padding: clamp(48px, 8vw, 96px) 24px clamp(40px, 6vw, 72px); }
.kicker {
  font-family: var(--font-ui); font-size: var(--text-xs); font-weight: 700;
  letter-spacing: .16em; text-transform: uppercase; color: var(--accent); margin: 0 0 16px;
}
.hero h1 {
  font-family: var(--font-display); font-weight: 500;
  font-size: var(--text-2xl); line-height: 1.08; letter-spacing: -0.01em;
  margin: 0; text-wrap: balance; color: var(--ink);
}
.tagline { display: none; }
.home .hero h1 { font-size: var(--text-hero); font-weight: 700; }
.home .tagline {
  display: block; margin: 24px 0 0; max-width: 40ch;
  font-family: var(--font-display); font-style: italic; font-weight: 400;
  font-size: var(--text-lg); line-height: 1.45; color: var(--ink-2);
}
.home .hero-inner { padding-top: clamp(64px, 11vw, 140px); padding-bottom: clamp(56px, 9vw, 110px); }

/* Prose */
.prose { max-width: var(--measure); margin: 0 auto; padding: clamp(40px, 6vw, 72px) 24px 96px; }
.prose p { margin: 0 0 1.15em; }
.prose h2 {
  font-family: var(--font-display); font-weight: 700; font-size: var(--text-xl);
  line-height: 1.2; margin: 2.4em 0 .8em; text-wrap: balance;
  padding-top: 1.2em; border-top: 1px solid var(--rule);
}
.prose h3 { font-family: var(--font-body); font-weight: 600; font-size: var(--text-lg); line-height: 1.3; margin: 0 0 .6em; }
.prose ul, .prose ol { padding-left: 1.3em; margin: 0 0 1.2em; }
.prose li { margin-bottom: .4em; }

.pull {
  font-family: var(--font-display); font-weight: 500;
  font-size: var(--text-xl); line-height: 1.3; color: var(--ink);
  margin: 1.6em 0 !important; padding-left: 20px; border-left: 3px solid var(--accent);
  text-wrap: balance;
}
.litany {
  font-family: var(--font-display); font-size: var(--text-lg); line-height: 1.6;
  text-align: center; margin: 1.8em 0 !important; padding: 1.2em 0;
  border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule);
}
.fork { list-style: none; padding: 0 !important; counter-reset: fork; margin: 1.6em 0 !important; }
.fork li {
  counter-increment: fork; position: relative;
  padding: 16px 16px 16px 64px; margin-bottom: 10px !important;
  background: var(--paper-2); border: 1px solid var(--rule);
}
.fork li::before {
  content: counter(fork); position: absolute; left: 18px; top: 50%; transform: translateY(-50%);
  font-family: var(--font-display); font-weight: 700; font-size: 1.6rem; color: var(--muted);
}
.fork li:last-child { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.fork li:last-child::before { color: #e6b7a9; }

.todo, .placeholder {
  font-family: var(--font-ui); font-size: var(--text-sm); color: var(--muted);
}
.todo { padding: 8px 12px; border: 1px dashed var(--parch-dark); background: rgba(239,224,191,.35); }
.placeholder {
  margin: 1.8em 0; padding: 18px 20px; border: 1px dashed var(--parch-dark);
  background: rgba(239,224,191,.35);
}
.placeholder p { margin: 0 0 .6em; }
.placeholder p:last-child { margin: 0; }
.label {
  font-family: var(--font-ui); font-size: var(--text-xs) !important; font-weight: 700;
  letter-spacing: .14em; text-transform: uppercase; color: var(--accent); margin: 0 0 .6em !important;
}

.explanation {
  position: relative; margin: 1.6em 0; padding: 22px 22px 6px 22px;
  background: #fbf8f2; border: 1px solid var(--rule);
}
.explanation .num {
  position: absolute; top: -16px; left: 18px; width: 32px; height: 32px;
  display: grid; place-items: center; border-radius: 50%;
  background: var(--ink); color: var(--paper); font-family: var(--font-ui); font-weight: 700; font-size: var(--text-sm);
}
.explanation .claim { font-style: italic; color: var(--ink-2); }
.explanation .critique { border-top: 1px solid var(--rule); padding-top: 1em; }

.method { list-style: none; padding: 0 !important; counter-reset: m; }
.method li { counter-increment: m; padding: 12px 0 12px 44px; position: relative; border-bottom: 1px solid var(--rule); margin: 0 !important; }
.method li::before { content: counter(m); position: absolute; left: 0; top: 10px; font-family: var(--font-display); font-weight: 700; font-size: 1.4rem; color: var(--accent); }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; margin: 1.6em 0; }
.two-col > div { background: #fbf8f2; border: 1px solid var(--rule); padding: 22px; }
.two-col ul { padding-left: 1.1em; }
.missions h3 { font-family: var(--font-display); font-weight: 700; font-size: 1.45rem; }
@media (max-width: 760px) { .two-col { grid-template-columns: 1fr; } }

.embed { margin: 1.4em 0; min-height: 60px; }
.embed blockquote { margin: 0; font-family: var(--font-ui); font-size: var(--text-sm); }

.cta {
  margin: 3em 0 0; padding: 36px 28px; text-align: center;
  background: var(--ink); color: var(--paper);
}
.cta p { font-family: var(--font-display); font-size: var(--text-lg); margin: 0 0 18px !important; }
.btn {
  display: inline-block; font-family: var(--font-ui); font-weight: 700; font-size: var(--text-sm);
  letter-spacing: .06em; text-transform: uppercase; text-decoration: none;
  background: var(--accent); color: #fff; padding: 14px 26px; border-radius: 2px;
  transition: background .15s;
}
.btn:hover { background: #a3392a; color: #fff; }
.prose > .cta:only-of-type { }

.next { margin-top: 3.2em; padding-top: 1.4em; border-top: 1px solid var(--rule); text-align: right; }
.next a { font-family: var(--font-ui); font-weight: 700; font-size: var(--text-sm); text-decoration: none; letter-spacing: .02em; }
.next a::after { content: " \2192"; }

/* Treaty page */
.treaty-page .prose { max-width: 1040px; }
.parchment {
  position: relative;
  background:
    radial-gradient(ellipse at 50% 40%, rgba(255,250,235,.55), transparent 70%),
    radial-gradient(ellipse at 0% 0%, rgba(140,98,40,.22), transparent 40%),
    radial-gradient(ellipse at 100% 0%, rgba(140,98,40,.18), transparent 40%),
    radial-gradient(ellipse at 0% 100%, rgba(140,98,40,.22), transparent 42%),
    radial-gradient(ellipse at 100% 100%, rgba(140,98,40,.24), transparent 42%),
    var(--parch);
  padding: clamp(14px, 2vw, 22px);
  box-shadow: 0 30px 60px -30px rgba(60,40,10,.55), 0 2px 0 rgba(0,0,0,.04);
}
.parchment::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .35; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .45 0 0 0 0 .32 0 0 0 0 .15 0 0 0 .5 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.parchment-inner {
  position: relative; border: 1px solid rgba(110,70,20,.45);
  outline: 1px solid rgba(110,70,20,.25); outline-offset: -8px;
  padding: clamp(32px, 6vw, 72px) clamp(20px, 5vw, 64px) clamp(40px, 6vw, 72px);
  color: #2a1f12;
}
.treaty-kicker { text-align: center; font-family: var(--font-display); font-style: italic; color: #6b4e26; margin: 0 0 12px !important; font-size: var(--text-lg); }
.treaty-title {
  font-family: var(--font-display) !important; font-weight: 700 !important;
  font-size: var(--text-2xl) !important; text-align: center; line-height: 1.1 !important;
  border: 0 !important; padding: 0 !important; margin: 0 0 18px !important; color: #2a1f12;
}
.treaty-title span { font-style: italic; font-weight: 400; color: var(--accent); font-size: .7em; }
.treaty-sub { text-align: center; max-width: 52ch; margin: 0 auto 28px !important; font-style: italic; color: #4b3a22; }
.treaty-howto {
  text-align: center; max-width: 60ch; margin: 0 auto 40px !important;
  font-family: var(--font-ui); font-size: var(--text-sm); color: #5d4726;
  padding: 14px 0; border-top: 1px solid rgba(110,70,20,.35); border-bottom: 1px solid rgba(110,70,20,.35);
}
.treaty-heads {
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin-bottom: 8px;
  font-family: var(--font-ui); font-size: var(--text-xs); font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: #6b4e26;
}
.row { padding: 28px 0; border-top: 1px solid rgba(110,70,20,.3); }
.row h3 {
  font-family: var(--font-display); font-weight: 700; font-size: 1.5rem; text-align: center;
  margin: 0 0 22px; color: #2a1f12; line-height: 1.25;
}
.numeral {
  display: block; font-size: .8rem; letter-spacing: .3em; font-family: var(--font-ui); font-weight: 700;
  color: var(--accent); margin-bottom: 6px;
}
.pair { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; position: relative; }
.pair::before {
  content: ""; position: absolute; left: 50%; top: 4px; bottom: 4px; width: 1px;
  background: rgba(110,70,20,.35);
}
.side p { margin: 0 !important; line-height: 1.65; }
.side .who { display: none; }
.gloss { margin: 20px auto 0 !important; max-width: 70ch; font-size: var(--text-sm); color: #5d4726; font-style: italic; text-align: center; }
.gloss a { color: var(--accent-ink); }

.signature { margin-top: 48px; padding-top: 32px; border-top: 2px double rgba(110,70,20,.5); text-align: center; }
.signature > p { font-style: italic; color: #4b3a22; }
.sig-lines { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; margin-top: 44px; }
.sig-lines .line { display: block; border-bottom: 1px solid #3a2a14; height: 36px; }
.sig-label { display: block; margin-top: 8px; font-family: var(--font-ui); font-size: var(--text-xs); letter-spacing: .14em; text-transform: uppercase; color: #6b4e26; }
.seal { display: block; width: 96px; height: 96px; margin: 40px auto 0; color: var(--accent); filter: drop-shadow(0 3px 4px rgba(60,20,10,.35)); }

@media (max-width: 760px) {
  .treaty-heads { display: none; }
  .pair { grid-template-columns: 1fr; gap: 18px; }
  .pair::before { display: none; }
  .side { padding-left: 14px; border-left: 2px solid rgba(110,70,20,.4); }
  .side.gentiles { border-left-color: var(--accent); }
  .side .who { display: block; font-family: var(--font-ui); font-size: var(--text-xs); font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: #6b4e26; margin-bottom: 6px !important; }
  .sig-lines { grid-template-columns: 1fr; gap: 28px; }
}

/* Footer */
.footer { background: var(--ink); color: #bdb2a3; }
.footer-inner { max-width: 880px; margin: 0 auto; padding: 48px 24px; font-family: var(--font-ui); font-size: var(--text-sm); }
.footer .brand-sm { font-family: var(--font-display); font-weight: 700; font-size: 1.3rem; color: var(--paper); margin: 0 0 6px; }
.footer p { margin: 0; max-width: 56ch; }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto !important; } }