:root {
  --obsidian: #0B0A08;
  --obsidian-2: #15120E;
  --obsidian-3: #211C16;
  --obsidian-4: #2a241c;
  --parchment: #EDE3CC;
  --parchment-mute: #A99E84;
  --parchment-dim: #786e58;
  --parchment-glow: #F5EDD7;
  --gold: #C8A653;
  --gold-deep: #8E7330;
  --gold-faint: #45381a;
  --oxblood: #5B1A1E;
  --vesper: #3A2A55;
  --ember: #E8723C;
  --grain: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='1.2' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.78  0 0 0 0 0.65  0 0 0 0 0.32  0 0 0 0.04 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background: var(--obsidian);
  color: var(--parchment);
  font-family: "Newsreader", Georgia, serif;
  font-size: 16px;
  line-height: 1.7;
  background-image: var(--grain);
  background-attachment: fixed;
}
::selection { background: var(--gold); color: var(--obsidian); }

/* === Layout =========================================================== */
.codex {
  display: grid;
  grid-template-columns: 300px 1fr;
  min-height: 100vh;
}

/* === Header =========================================================== */
.codex-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 64px;
  z-index: 20;
  background: rgba(11, 10, 8, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--gold-faint);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px 0 28px;
}
.codex-header .brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--parchment);
}
.codex-header .brand svg { height: 28px; width: auto; }
.codex-header .brand .wm {
  font-family: "Cinzel", serif;
  font-weight: 600;
  letter-spacing: 0.18em;
  font-size: 15px;
}
.codex-header .brand .codex-tag {
  font-family: "Inter", sans-serif;
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--gold);
  margin-left: 8px;
  padding-left: 12px;
  border-left: 1px solid var(--gold-faint);
}
.codex-header .header-links {
  display: flex;
  align-items: center;
  gap: 24px;
}
.codex-header .header-links a {
  font-family: "Inter", sans-serif;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--parchment-mute);
  text-decoration: none;
  transition: color 0.15s;
}
.codex-header .header-links a:hover { color: var(--gold); }

/* === Search ============================================================ */
.codex-search {
  position: relative;
  width: 200px;
}
.codex-search input {
  width: 100%;
  padding: 8px 12px 8px 32px;
  background: var(--obsidian-2);
  border: 1px solid var(--gold-faint);
  color: var(--parchment);
  font-family: "Inter", sans-serif;
  font-size: 13px;
  letter-spacing: 0.04em;
  border-radius: 0;
  outline: none;
  transition: border-color 0.15s;
}
.codex-search input:focus { border-color: var(--gold); }
.codex-search input::placeholder { color: var(--parchment-dim); }
.codex-search svg {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
}

/* === Sidebar =========================================================== */
.codex-sidebar {
  position: fixed;
  top: 64px;
  left: 0;
  width: 300px;
  height: calc(100vh - 64px);
  overflow-y: auto;
  padding: 32px 20px 80px 28px;
  border-right: 1px solid var(--gold-faint);
  background: rgba(11, 10, 8, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.codex-sidebar::-webkit-scrollbar { width: 6px; }
.codex-sidebar::-webkit-scrollbar-track { background: transparent; }
.codex-sidebar::-webkit-scrollbar-thumb { background: var(--gold-faint); border-radius: 0; }
.codex-sidebar::-webkit-scrollbar-thumb:hover { background: var(--gold-deep); }

.nav-section { margin-bottom: 28px; }
.nav-section .nav-title {
  font-family: "Inter", sans-serif;
  font-size: 10px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 12px 8px;
  font-weight: 500;
}
.nav-section ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-section li { margin: 0; }
.nav-section a {
  display: block;
  padding: 7px 12px;
  font-family: "Newsreader", serif;
  font-size: 14.5px;
  color: var(--parchment-mute);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.nav-section a:hover {
  color: var(--parchment);
  background: rgba(200, 166, 83, 0.04);
}
.nav-section a.active {
  color: var(--gold);
  border-left-color: var(--gold);
  background: rgba(200, 166, 83, 0.06);
}

/* External-links section — distinct from in-Codex nav so the eye reads it as
   "leave the docs" rather than another doc page. Lives at the bottom. */
.nav-external {
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px solid var(--gold-faint);
}
.nav-external a {
  font-family: "Inter", sans-serif;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--parchment-mute);
}
.nav-external a:hover { color: var(--gold); }

/* === Main content area ================================================= */
.codex-main {
  grid-column: 2;
  padding: 96px 56px 120px;
  max-width: 880px;
  margin: 0;
}

.codex-main h1 {
  font-family: "Cinzel", serif;
  font-weight: 600;
  letter-spacing: 0.04em;
  font-size: 44px;
  color: var(--parchment);
  line-height: 1.1;
  margin: 0 0 8px;
}
.codex-main h1 + .doc-eyebrow,
.codex-main .doc-eyebrow {
  font-family: "Inter", sans-serif;
  font-size: 11px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 16px;
}
.codex-main h1 + p,
.codex-main .lede {
  font-size: 19px;
  line-height: 1.55;
  color: var(--parchment-mute);
  margin: 16px 0 32px;
  max-width: 720px;
}

.codex-main h2 {
  font-family: "Cinzel", serif;
  font-weight: 600;
  letter-spacing: 0.04em;
  font-size: 28px;
  color: var(--parchment);
  margin: 64px 0 12px;
  padding-top: 12px;
  border-top: 1px solid var(--obsidian-3);
}
.codex-main h2:first-of-type { border-top: none; padding-top: 0; }
.codex-main h3 {
  font-family: "Cinzel", serif;
  font-weight: 600;
  letter-spacing: 0.03em;
  font-size: 20px;
  color: var(--gold);
  margin: 36px 0 8px;
}
.codex-main h4 {
  font-family: "Inter", sans-serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--parchment);
  margin: 28px 0 6px;
}

.codex-main p {
  margin: 0 0 18px;
  color: var(--parchment);
}
.codex-main p .term {
  color: var(--gold);
  font-weight: 500;
  font-style: italic;
}
.codex-main strong { color: var(--parchment-glow); font-weight: 500; }
.codex-main em { font-style: italic; color: var(--parchment-glow); }

.codex-main ul, .codex-main ol {
  margin: 0 0 20px;
  padding-left: 22px;
  color: var(--parchment);
}
.codex-main li { margin-bottom: 8px; }
.codex-main li::marker { color: var(--gold); }

/* Inline + block code */
.codex-main code {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 13.5px;
  background: var(--obsidian-2);
  border: 1px solid var(--gold-faint);
  padding: 1px 6px;
  color: var(--gold);
  font-feature-settings: "tnum";
}
.codex-main pre {
  background: var(--obsidian-2);
  border: 1px solid var(--gold-faint);
  border-left: 2px solid var(--gold);
  padding: 18px 22px;
  margin: 0 0 24px;
  overflow-x: auto;
  font-family: "JetBrains Mono", monospace;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--parchment);
}
.codex-main pre code {
  background: none;
  border: none;
  padding: 0;
  color: inherit;
  font-size: inherit;
}

/* Tables */
.codex-main table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 28px;
  font-family: "Newsreader", serif;
  font-size: 15px;
}
.codex-main thead th {
  font-family: "Inter", sans-serif;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 500;
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--gold-deep);
  background: var(--obsidian-2);
}
.codex-main tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--obsidian-3);
  color: var(--parchment);
  vertical-align: top;
}
.codex-main tbody tr:hover td { background: rgba(200, 166, 83, 0.025); }
.codex-main td.mono, .codex-main th.mono {
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
  color: var(--gold);
}

/* Callouts */
.callout {
  border: 1px solid var(--gold-faint);
  padding: 18px 22px;
  margin: 24px 0 28px;
  background: rgba(21, 18, 14, 0.7);
  position: relative;
}
.callout-eyebrow {
  font-family: "Inter", sans-serif;
  font-size: 10px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 8px;
  font-weight: 500;
}
.callout p:last-child { margin-bottom: 0; }
.callout.doctrine { border-left: 3px solid var(--gold); }
.callout.warning {
  border-left: 3px solid var(--oxblood);
  background: rgba(91, 26, 30, 0.12);
}
.callout.warning .callout-eyebrow { color: var(--ember); }
.callout.note { border-left: 3px solid var(--vesper); }

/* Doctrine block (the three pillars) */
.doctrine-block {
  text-align: center;
  margin: 36px 0 48px;
  padding: 36px 24px;
  border: 1px solid var(--gold-faint);
  background: rgba(11, 10, 8, 0.55);
}
.doctrine-block .line {
  font-family: "Cinzel", serif;
  font-weight: 600;
  letter-spacing: 0.05em;
  font-size: 22px;
  color: var(--gold);
  padding: 10px 0;
}
.doctrine-block .rule {
  height: 1px;
  background: var(--gold-deep);
  width: 180px;
  margin: 0 auto;
}

/* Blockquote — used for scripture-style pull quotes */
.codex-main blockquote {
  margin: 28px 0;
  padding: 16px 0 16px 24px;
  border-left: 2px solid var(--gold);
  font-family: "Cinzel", serif;
  font-size: 19px;
  letter-spacing: 0.04em;
  color: var(--gold);
  font-weight: 500;
  font-style: normal;
  line-height: 1.5;
}

/* Anchor links on hover */
.codex-main h2, .codex-main h3 { scroll-margin-top: 84px; }

/* Page navigation footer (prev/next) */
.page-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 80px;
  padding-top: 32px;
  border-top: 1px solid var(--obsidian-3);
}
.page-nav a {
  display: block;
  padding: 22px 24px;
  background: var(--obsidian-2);
  border: 1px solid var(--gold-faint);
  text-decoration: none;
  color: var(--parchment);
  transition: border-color 0.15s, background 0.15s;
}
.page-nav a:hover { border-color: var(--gold); background: var(--obsidian-3); }
.page-nav .label {
  font-family: "Inter", sans-serif;
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--parchment-mute);
  margin-bottom: 6px;
}
.page-nav .title {
  font-family: "Cinzel", serif;
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--parchment);
}
.page-nav a.next { text-align: right; }

/* Sigil row (small inline icons) */
.sigil-row {
  display: flex;
  gap: 14px;
  margin: 4px 0 22px;
}
.sigil-row .sig {
  width: 44px;
  height: 44px;
  border: 1px solid var(--gold-faint);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--obsidian-2);
}
.sigil-row .sig svg { width: 28px; height: 28px; }

/* === Mobile ============================================================ */
.menu-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--gold);
  color: var(--gold);
  padding: 6px 10px;
  font-family: "Inter", sans-serif;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
}

@media (max-width: 900px) {
  .codex { grid-template-columns: 1fr; }
  .codex-sidebar {
    transform: translateX(-100%);
    transition: transform 0.25s;
    z-index: 15;
    width: 280px;
  }
  .codex-sidebar.open { transform: translateX(0); }
  .codex-main { grid-column: 1; padding: 88px 24px 80px; }
  .codex-search { display: none; }
  .menu-toggle { display: inline-block; }
  .codex-header { padding: 0 16px; }
  .codex-header .brand .codex-tag { display: none; }
  .codex-main h1 { font-size: 32px; }
  .codex-main h2 { font-size: 24px; }
}

/* Tighter mobile — drop the App / Etherscan header links so the brand and
   menu fit on a single line without overflow. */
@media (max-width: 600px) {
  .codex-header { padding: 0 12px; height: 56px; }
  .codex-header .brand svg { height: 24px; }
  .codex-header .brand .wm { font-size: 13px; letter-spacing: 0.16em; }
  .codex-header .header-links { gap: 12px; }
  .codex-header .header-links > a { display: none; }
  .codex-sidebar { top: 56px; height: calc(100vh - 56px); }
  .codex-main { padding-top: 76px; padding-left: 18px; padding-right: 18px; }
  .codex-main h1 { font-size: 28px; }
  .codex-main h2 { font-size: 22px; }
  .codex-main pre { font-size: 12px; padding: 14px 16px; }
  .menu-toggle { padding: 5px 9px; font-size: 10px; letter-spacing: 0.14em; }
  .page-nav { grid-template-columns: 1fr; gap: 10px; }
}

/* Subtle scrollbar styling for main */
html { scroll-behavior: smooth; }