/* Dead Trench Redemption — Field Manual
   Restrained frontier field-manual styling. Cream paper, near-black ink,
   one oxblood accent. Served statically; no external fonts or assets. */

:root {
  --paper: #f4efe4;
  --paper-edge: #ece5d5;
  --ink: #1c1814;
  --ink-soft: #4b433a;
  --ink-faint: #7a7062;
  --rule: #cbc2af;
  --rule-soft: #ded6c4;
  --accent: #6e1f22;      /* deep oxblood */
  --accent-soft: #8a3033;
  --sidebar-w: 250px;
  --measure: 68ch;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* --------------------------------------------------------------- layout */

.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  padding: 40px 26px 32px;
  border-right: 1px solid var(--rule);
  background: var(--paper-edge);
  overflow-y: auto;
}

.brand {
  font-size: 19px;
  line-height: 1.25;
  letter-spacing: 0.01em;
  margin: 0 0 2px;
}

.brand-sub {
  font-variant: small-caps;
  letter-spacing: 0.14em;
  font-size: 12px;
  color: var(--ink-faint);
  margin: 0 0 26px;
}

.sidebar nav ol {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: nav;
}

.sidebar nav li { margin: 0; counter-increment: nav; }

.sidebar nav a {
  display: block;
  padding: 4px 0 4px 30px;
  position: relative;
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 15px;
  line-height: 1.3;
  border-left: 2px solid transparent;
}

.sidebar nav a::before {
  content: counter(nav);
  position: absolute;
  left: 6px;
  top: 4px;
  font-size: 12px;
  color: var(--ink-faint);
  font-variant-numeric: tabular-nums;
}

.sidebar nav a:hover { color: var(--ink); }

.sidebar nav a.active {
  color: var(--accent);
  border-left-color: var(--accent);
  padding-left: 28px;
}

.sidebar nav a.active::before { color: var(--accent); }

.content {
  margin-left: var(--sidebar-w);
  padding: 56px 48px 96px;
}

.wrap { max-width: var(--measure); }

/* --------------------------------------------------------------- header */

.manual-head {
  margin: 0 0 8px;
  padding-bottom: 26px;
  border-bottom: 2px solid var(--ink);
}

.kicker {
  font-variant: small-caps;
  letter-spacing: 0.18em;
  font-size: 13px;
  color: var(--accent);
  margin: 0 0 10px;
}

.manual-head h1 {
  font-size: 40px;
  line-height: 1.05;
  font-weight: 600;
  margin: 0 0 6px;
  letter-spacing: -0.005em;
}

.manual-head .subtitle {
  font-size: 20px;
  color: var(--ink-soft);
  font-style: italic;
  margin: 0 0 14px;
}

.manual-head .rev {
  font-variant: small-caps;
  letter-spacing: 0.1em;
  font-size: 12px;
  color: var(--ink-faint);
  margin: 0;
}

.lede {
  font-size: 20px;
  line-height: 1.55;
  color: var(--ink-soft);
  margin: 30px 0 8px;
}

/* --------------------------------------------------------------- sections */

section { padding-top: 34px; }

section > h2 {
  font-size: 15px;
  font-variant: small-caps;
  letter-spacing: 0.14em;
  color: var(--accent);
  margin: 0 0 4px;
}

section > h2 + .rule {
  border: 0;
  border-top: 1px solid var(--rule);
  margin: 0 0 18px;
}

section h3 {
  font-size: 22px;
  font-weight: 600;
  margin: 26px 0 6px;
  letter-spacing: -0.005em;
}

p { margin: 0 0 16px; }

p, li { text-align: left; } /* ragged right */

a { color: var(--accent); text-decoration: none; border-bottom: 1px solid var(--rule); }
a:hover { border-bottom-color: var(--accent); }

.content ul { margin: 0 0 16px; padding-left: 1.1em; }
.content li { margin: 0 0 5px; }

/* --------------------------------------------------------------- kbd */

kbd {
  font-family: var(--serif);
  font-size: 0.82em;
  padding: 1px 7px;
  border: 1px solid var(--ink-faint);
  border-bottom-width: 2px;
  border-radius: 3px;
  background: #fbf8f0;
  color: var(--ink);
  white-space: nowrap;
  line-height: 1;
}

/* --------------------------------------------------------------- tables */

table {
  width: 100%;
  border-collapse: collapse;
  margin: 8px 0 22px;
  font-size: 16px;
}

table caption {
  text-align: left;
  font-variant: small-caps;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
  font-size: 12px;
  margin-bottom: 6px;
}

th {
  text-align: left;
  font-weight: 600;
  font-variant: small-caps;
  letter-spacing: 0.06em;
  font-size: 13px;
  color: var(--ink-soft);
  border-bottom: 1.5px solid var(--ink);
  padding: 4px 14px 6px 0;
  vertical-align: bottom;
}

td {
  padding: 7px 14px 7px 0;
  border-bottom: 1px solid var(--rule-soft);
  vertical-align: top;
}

td:first-child { white-space: nowrap; color: var(--ink); }

tr:last-child td { border-bottom: none; }

/* --------------------------------------------------------------- footer */

.manual-foot {
  margin-top: 64px;
  padding-top: 22px;
  border-top: 1px solid var(--rule);
  font-size: 14px;
  color: var(--ink-faint);
  line-height: 1.55;
}

.manual-foot p { margin: 0 0 8px; }

/* --------------------------------------------------------------- topbar (mobile) */

.topbar { display: none; }

/* --------------------------------------------------------------- responsive */

@media (max-width: 800px) {
  .sidebar {
    position: static;
    width: auto;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--rule);
    padding: 22px 22px 16px;
  }
  .brand-sub { margin-bottom: 16px; }
  .sidebar nav ol {
    display: flex;
    flex-wrap: wrap;
    gap: 2px 16px;
  }
  .sidebar nav a { padding: 3px 0 3px 22px; border-left: none; }
  .sidebar nav a.active { padding-left: 22px; border-left: none; }
  .content {
    margin-left: 0;
    padding: 34px 24px 72px;
  }
  .manual-head h1 { font-size: 32px; }
  body { font-size: 17px; }
}

/* --------------------------------------------------------------- print */

@media print {
  :root { --paper: #fff; }
  .sidebar { display: none; }
  .content { margin-left: 0; padding: 0; }
  .wrap { max-width: none; }
  body { font-size: 11pt; color: #000; }
  section { padding-top: 18px; page-break-inside: avoid; }
  a { color: #000; border-bottom: none; }
  kbd { border-color: #000; }
}