:root {
  --navy: #13283c;
  --navy-deep: #0c1b2a;
  --navy-soft: #1d3a54;
  --copper: #c4783a;
  --copper-bright: #d8924e;
  --brass: #c4a35a;
  --paper: #f4efe4;
  --paper-2: #ebe3d4;
  --card: #fbf7ef;
  --ink: #1c2733;
  --muted: #5a6a78;
  --line: rgba(19, 40, 60, 0.12);
  --good: #2c5d46;
  --good-bg: #e4efe8;
  --bad: #8a3a32;
  --bad-bg: #f3e4df;
  --shadow: 0 18px 40px rgba(12, 27, 42, 0.12);
  --header-h: 4.25rem;
  --rail-w: 17.5rem;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 1.25rem);
}

body {
  margin: 0;
  background:
    radial-gradient(1200px 420px at 12% -10%, rgba(196, 120, 58, 0.12), transparent 55%),
    var(--paper);
  color: var(--ink);
  font-family: "Source Sans 3", "Segoe UI", sans-serif;
  font-size: 1.05rem;
  line-height: 1.65;
}

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

a {
  color: var(--navy-soft);
}

a:hover {
  color: var(--copper);
}

code {
  padding: 0.08em 0.38em;
  border-radius: 0.25rem;
  background: var(--paper-2);
  color: var(--navy);
  font-size: 0.92em;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.skip-link {
  position: absolute;
  left: 0.75rem;
  top: -3rem;
  z-index: 40;
  padding: 0.45rem 0.8rem;
  background: var(--copper);
  color: #fff;
}

.skip-link:focus {
  top: 0.75rem;
}

.masthead {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--navy);
  color: #f4efe4;
  border-bottom: 3px solid var(--copper);
}

.masthead__inner {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 1rem 1.4rem;
  max-width: 78rem;
  margin: 0 auto;
  padding: 0.7rem 1.35rem;
  min-height: var(--header-h);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: inherit;
  text-decoration: none;
}

.brand__mark {
  width: 2.7rem;
  height: 2.7rem;
  border-radius: 50%;
  overflow: hidden;
  border: 1px solid var(--brass);
  background: var(--navy-deep);
  box-shadow: 0 0 0 2px var(--navy);
}

.brand__mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.12);
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand__name {
  font-family: "Barlow Condensed", sans-serif;
  font-size: 1.22rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand__wiki {
  margin-top: 0.18rem;
  color: var(--brass);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.masthead__title {
  margin: 0;
  justify-self: start;
  color: var(--copper-bright);
  font-family: "Barlow Condensed", sans-serif;
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.search {
  min-width: 14rem;
}

.search input {
  width: 100%;
  padding: 0.48rem 0.8rem;
  border: 1px solid rgba(244, 239, 228, 0.18);
  border-radius: 999px;
  background: var(--navy-deep);
  color: #f4efe4;
  font: inherit;
}

.search input::placeholder {
  color: rgba(244, 239, 228, 0.55);
}

.search input:focus {
  outline: 2px solid var(--copper);
  outline-offset: 1px;
}

.menu-btn {
  display: none;
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--brass);
  background: transparent;
  color: var(--brass);
  font-family: "Barlow Condensed", sans-serif;
  font-size: 0.95rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.shell {
  display: grid;
  grid-template-columns: var(--rail-w) minmax(0, 1fr);
  max-width: 78rem;
  margin: 0 auto;
  min-height: calc(100vh - var(--header-h));
}

.rail {
  position: sticky;
  top: var(--header-h);
  align-self: start;
  height: calc(100vh - var(--header-h));
  padding: 1.6rem 1.15rem 2rem 1.35rem;
  border-right: 1px solid var(--line);
  background:
    linear-gradient(90deg, transparent 0.35rem, var(--copper) 0.35rem, var(--copper) 0.48rem, transparent 0.48rem),
    var(--paper-2);
  overflow: auto;
}

.rail__kicker,
.rail__card-kicker {
  margin: 0 0 0.7rem;
  color: var(--copper);
  font-family: "Barlow Condensed", sans-serif;
  font-size: 0.82rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.toc {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.toc a {
  padding: 0.38rem 0.55rem;
  border-left: 3px solid transparent;
  color: var(--navy);
  font-weight: 600;
  text-decoration: none;
}

.toc a:hover,
.toc a[aria-current="true"] {
  border-left-color: var(--copper);
  background: rgba(196, 120, 58, 0.1);
  color: var(--navy-deep);
}

.rail__card {
  margin-top: 1.75rem;
  padding: 1rem 0.95rem 1.05rem;
  border: 1px solid rgba(196, 120, 58, 0.35);
  background: var(--card);
  box-shadow: inset 0 0 0 4px var(--paper-2);
}

.rail__address {
  margin: 0 0 0.45rem;
  font-family: "Barlow Condensed", sans-serif;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.3;
}

.rail__address a {
  color: var(--navy);
  text-decoration: none;
  overflow-wrap: anywhere;
}

.rail__hint {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.page {
  padding: 1.75rem 1.7rem 3.5rem;
}

.wiki-article {
  margin-bottom: 2.4rem;
  padding: 1.6rem 1.7rem 1.8rem;
  border: 1px solid var(--line);
  background: var(--card);
  box-shadow: var(--shadow);
}

.wiki-article.is-hidden {
  display: none;
}

.crumbs {
  margin: 0 0 0.55rem;
  color: var(--muted);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4 {
  font-family: "Barlow Condensed", sans-serif;
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1.15;
}

h1 {
  margin: 0 0 0.7rem;
  color: var(--navy);
  font-size: clamp(2.2rem, 5vw, 3.15rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h2 {
  margin: 0 0 0.85rem;
  padding-bottom: 0.45rem;
  border-bottom: 2px solid var(--copper);
  color: var(--navy);
  font-size: 1.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

h3 {
  margin: 1.2rem 0 0.4rem;
  color: var(--navy-soft);
  font-size: 1.28rem;
}

h4 {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.lede {
  max-width: 42rem;
  margin: 0 0 1.3rem;
  font-size: 1.18rem;
}

.hero,
.scenario {
  margin: 0 0 1.3rem;
}

.hero img,
.scenario img {
  width: 100%;
  border: 1px solid var(--line);
}

.hero img {
  max-height: 22rem;
  object-fit: cover;
  object-position: 40% 55%;
}

.scenario img {
  background: #fff;
}

figcaption {
  margin-top: 0.45rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.stat-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.7rem;
  margin: 0 0 1.4rem;
}

.stat {
  padding: 0.8rem 0.85rem 0.9rem;
  border-top: 3px solid var(--copper);
  background: var(--paper);
}

.stat__label {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.stat__value {
  display: block;
  margin-top: 0.25rem;
  font-family: "Barlow Condensed", sans-serif;
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.callout {
  padding: 1.05rem 1.15rem 1.15rem;
  border-left: 4px solid var(--copper);
  background: var(--paper);
}

.callout__stamp {
  margin: 0 0 0.2rem;
  color: var(--copper);
  font-family: "Barlow Condensed", sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.callout__title {
  margin: 0 0 0.4rem;
  border: 0;
  font-size: 1.35rem;
  padding: 0;
}

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

.flow {
  list-style: none;
  margin: 0 0 1.4rem;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

.flow__step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.85rem;
  padding: 0.85rem 0.95rem;
  background: var(--paper);
  border: 1px solid var(--line);
}

.flow__num {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--navy);
  color: var(--copper-bright);
  font-family: "Barlow Condensed", sans-serif;
  font-weight: 700;
}

.flow__step h3 {
  margin: 0 0 0.2rem;
}

.flow__step p {
  margin: 0;
  color: var(--muted);
}

.doc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15.5rem, 1fr));
  gap: 0.85rem;
  margin: 1rem 0 1.4rem;
}

.panel {
  padding: 1rem 1rem 1.1rem;
  background: var(--paper);
  border: 1px solid var(--line);
}

.panel h3 {
  margin-top: 0;
}

.panel strong,
.panel code {
  overflow-wrap: anywhere;
}

.panel ul,
.split ul,
.issue ul {
  margin: 0;
  padding-left: 1.1rem;
}

.panel li + li,
.split li + li {
  margin-top: 0.28rem;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}

.good,
.bad {
  padding: 1rem;
}

.good {
  background: var(--good-bg);
  border-top: 3px solid var(--good);
}

.bad {
  background: var(--bad-bg);
  border-top: 3px solid var(--bad);
}

.good h4 {
  color: var(--good);
}

.bad h4 {
  color: var(--bad);
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.98rem;
}

th,
td {
  padding: 0.7rem 0.85rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

th {
  background: var(--navy);
  color: #f4efe4;
  font-family: "Barlow Condensed", sans-serif;
  font-size: 0.95rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

tr:nth-child(even) td {
  background: var(--paper);
}

.issue {
  margin: 0 0 0.65rem;
  border: 1px solid var(--line);
  background: var(--paper);
}

.issue summary {
  cursor: pointer;
  padding: 0.8rem 1rem;
  font-weight: 650;
  font-family: "Barlow Condensed", sans-serif;
  font-size: 1.18rem;
  letter-spacing: 0.03em;
}

.issue div {
  padding: 0 1rem 1rem;
}

.issue p:first-child {
  margin-top: 0;
}

.colophon {
  padding: 0.4rem 0.2rem 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.colophon p {
  margin: 0.2rem 0;
}

.scrim {
  display: none;
}

.search-empty {
  padding: 1.4rem;
  background: var(--card);
  border: 1px dashed var(--line);
}

@media (max-width: 900px) {
  :root {
    --header-h: 7.6rem;
  }

  .masthead__inner {
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "brand menu"
      "search search";
    gap: 0.55rem 0.8rem;
    padding: 0.55rem 0.9rem 0.7rem;
  }

  .brand { grid-area: brand; }
  .menu-btn { grid-area: menu; display: inline-block; }
  .masthead__title { display: none; }
  .search { grid-area: search; min-width: 0; }

  .shell {
    grid-template-columns: 1fr;
  }

  .rail {
    position: fixed;
    top: var(--header-h);
    left: 0;
    z-index: 25;
    width: min(20rem, 86vw);
    height: calc(100vh - var(--header-h));
    transform: translateX(-105%);
    transition: transform 0.2s ease;
    box-shadow: var(--shadow);
  }

  .rail.is-open {
    transform: none;
  }

  .scrim.is-on {
    display: block;
    position: fixed;
    inset: var(--header-h) 0 0;
    z-index: 22;
    background: rgba(12, 27, 42, 0.45);
  }

  .page {
    padding: 1.15rem 0.9rem 2.5rem;
  }

  .wiki-article {
    padding: 1.15rem 1rem 1.3rem;
  }

  .stat-row,
  .doc-grid,
  .split {
    grid-template-columns: 1fr;
  }

  .hero img {
    max-height: 14rem;
  }
}