/* DVRT SOP Reference - field manual theme */
:root {
  --bg: #24252a;
  --rail: #23211b;
  --rail-line: #3c382c;
  --gold: #c8a13c;
  --rust: #b4552e;
  --rust-dark: #8d3d1d;
  --parch: #ece4d2;
  --parch-alt: #e7dfcc;
  --ink: #17150f;
  --body: #2b271e;
  --muted: #7a7364;
  --muted-2: #8d8b84;
  --danger: #8d2b1e;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--body);
  font-family: 'Barlow', system-ui, sans-serif;
}

.manual {
  display: grid;
  grid-template-columns: 320px 1fr;
  height: 100vh;
}

/* ---------- sidebar ---------- */
.rail {
  background: var(--rail);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-right: 1px solid var(--ink);
}
.brand {
  padding: 22px 22px 18px;
  border-bottom: 2px solid var(--gold);
}
.brand-mark {
  font-family: 'Oswald', sans-serif;
  font-size: 27px; font-weight: 600; letter-spacing: 0.12em;
  color: var(--parch); line-height: 1;
}
.brand-sub {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 9.5px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--gold); margin-top: 7px;
}
.brand-org {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 9.5px; letter-spacing: 0.14em;
  color: #8a8577; margin-top: 3px;
}
.search-wrap { padding: 16px 22px 12px; }
.search {
  width: 100%;
  background: var(--ink);
  border: 1px solid var(--rail-line);
  color: var(--parch);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px; letter-spacing: 0.12em;
  padding: 9px 11px; outline: none;
}
.search:focus { border-color: var(--gold); }
.search::placeholder { color: #6e6a5d; }

.nav { flex: 1; overflow-y: auto; padding: 6px 0 22px; }
.nav-item {
  position: relative;
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 4px 8px; align-items: baseline;
  padding: 12px 22px;
  cursor: pointer; text-decoration: none;
  font-family: 'Oswald', sans-serif;
}
.nav-item:hover { background: #2c2921; }
.nav-item.active { background: #2c2921; }
.nav-item.active::before {
  content: ""; position: absolute; left: 0; top: 6px; bottom: 6px;
  width: 4px; background: var(--gold);
}
.ni-num { font-family: 'IBM Plex Mono', monospace; font-size: 11px; color: var(--gold); }
.ni-title { font-size: 14px; letter-spacing: 0.1em; text-transform: uppercase; color: #ded7c5; }
.ni-meta {
  grid-column: 2;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 9.5px; letter-spacing: 0.1em; color: #7c7768; margin-top: 3px;
}
.rail-foot {
  padding: 14px 22px; border-top: 1px solid var(--rail-line);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 9px; letter-spacing: 0.12em; color: #6e6a5d;
  display: flex; flex-direction: column; gap: 4px;
}

/* ---------- content ---------- */
.content {
  overflow-y: auto;
  background: repeating-linear-gradient(180deg, var(--parch) 0 27px, var(--parch-alt) 27px 28px);
}
.part { scroll-margin-top: 0; border-bottom: 1px solid #d8cfb8; }
.part-head {
  position: sticky; top: 0; z-index: 2;
  padding: 26px 44px 18px;
  border-bottom: 2px solid var(--ink);
  background: var(--parch);
  display: flex; align-items: flex-end; justify-content: space-between; gap: 20px;
}
.ph-meta {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--muted);
}
.ph-title {
  font-family: 'Oswald', sans-serif;
  font-size: 40px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--ink); line-height: 1.05; margin: 6px 0 0;
}
.ph-sub {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px; letter-spacing: 0.1em; color: var(--muted); margin-top: 6px;
}
.ph-right {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 9.5px; letter-spacing: 0.14em; color: var(--muted); text-align: right; white-space: nowrap;
}
.ph-date { color: var(--ink); margin-top: 3px; }

.part-body { padding: 30px 44px 60px; max-width: 900px; }

/* markdown blocks */
.part-body h2 {
  font-family: 'Oswald', sans-serif;
  font-size: 19px; font-weight: 500; letter-spacing: 0.11em; text-transform: uppercase;
  color: var(--ink);
  margin: 30px 0 12px; padding-bottom: 6px; border-bottom: 1px solid #b9b09b;
}
.part-body h3 {
  font-family: 'Oswald', sans-serif;
  font-size: 15px; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase;
  color: #4a4437; margin: 22px 0 8px;
}
.part-body p {
  font-size: 15.5px; line-height: 1.62; color: var(--body);
  margin: 0 0 12px; max-width: 78ch; text-wrap: pretty;
}
.part-body ul, .part-body ol { margin: 4px 0 16px; padding-left: 0; list-style: none; }
.part-body li {
  font-size: 15.5px; line-height: 1.55; color: var(--body);
  max-width: 78ch; margin: 0 0 8px; padding-left: 20px; position: relative;
}
.part-body li::before {
  content: ""; position: absolute; left: 2px; top: 10px;
  width: 6px; height: 6px; background: var(--gold);
}
.part-body li li { margin-top: 6px; font-size: 14.5px; color: #4a4437; }
.part-body li li::before { background: none; content: "-"; left: 0; top: 0; color: var(--gold); }

.part-body table {
  border-collapse: collapse; width: 100%; margin: 8px 0 20px;
  font-size: 14px;
}
.part-body th {
  background: #ddd2b8; color: var(--ink);
  font-family: 'IBM Plex Mono', monospace; font-size: 10px;
  letter-spacing: 0.14em; text-transform: uppercase;
  text-align: left; padding: 9px 12px; border: 1px solid #b9b09b;
}
.part-body td {
  padding: 9px 12px; border: 1px solid #c9bfa5; color: var(--body); vertical-align: top;
}

.part-body blockquote {
  margin: 6px 0 18px; padding: 14px 18px;
  background: #e2d9c2; border-left: 4px solid var(--gold);
}
.part-body blockquote p { margin: 0 0 6px; }
.part-body blockquote p:last-child { margin-bottom: 0; }
.part-body blockquote.example {
  font-family: 'IBM Plex Mono', monospace; font-size: 13px;
}
.part-body blockquote.danger { background: #e6dcc6; border: 2px solid var(--danger); border-left-width: 6px; }
.part-body blockquote.danger strong { color: var(--danger); }
.part-body blockquote.diagram {
  border: 1px dashed #b9b09b; background: #e6ddc8;
  border-left: 1px dashed #b9b09b; text-align: center;
  font-family: 'IBM Plex Mono', monospace; font-size: 12px; color: var(--muted);
}
.part-body a { color: var(--rust); }
.part-body a:hover { color: var(--rust-dark); }
.part-body mark.hit { background: #e9c65a; color: var(--ink); padding: 0 1px; }
.part-body strong { color: var(--ink); }
.part-body code {
  font-family: 'IBM Plex Mono', monospace; font-size: 0.9em;
  background: #ddd2b8; padding: 1px 5px;
}

.noresults {
  padding: 40px 44px;
  font-family: 'Oswald', sans-serif; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--muted);
}

/* scrollbars */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--muted-2); border-radius: 6px; }
::-webkit-scrollbar-track { background: transparent; }

/* ---------- responsive ---------- */
@media (max-width: 820px) {
  .manual { grid-template-columns: 1fr; height: auto; }
  .rail { height: auto; position: sticky; top: 0; z-index: 5; border-right: none; border-bottom: 1px solid var(--ink); }
  .nav { max-height: 40vh; }
  .part-head { position: static; }
  .ph-title { font-size: 30px; }
  .part-body { padding: 24px 20px 48px; }
}