/* Boundary — field notes. Signature: monument + bearing + distance. */
:root {
  --bd-ink: #1e2418; --bd-paper: #e6dfc8; --bd-tape: #c45c1a; --bd-stake: #2c3a28;
  --bd-mute: #5a5848; --bd-card: #f4efe0;
  --bd-disp: "Libre Bodoni", "Times New Roman", serif;
  --bd-ui: "Fira Sans Condensed", "Segoe UI", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; background: var(--bd-paper); color: var(--bd-ink); font-family: var(--bd-ui); font-size: 17.5px; line-height: 1.5; }
a { color: var(--bd-tape); }
:focus-visible { outline: 3px solid var(--bd-tape); outline-offset: 2px; }
.bd-skip { position: absolute; left: -9999px; }
.bd-skip:focus { left: 8px; top: 8px; background: #fff; padding: 8px 12px; z-index: 5; }
.bd-field { max-width: 820px; margin: 0 auto; padding: 0 20px; }
.bd-cap { background: var(--bd-stake); color: var(--bd-paper); }
.bd-cap .bd-field { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 16px 20px; flex-wrap: wrap; }
.bd-mark { color: inherit; text-decoration: none; }
.bd-mark-n { display: block; font-family: var(--bd-disp); font-size: 1.55rem; }
.bd-mark-s { display: block; margin-top: 4px; font-size: 0.78rem; color: #c8c4b0; }
.bd-nav { display: flex; gap: 16px; }
.bd-nav a { color: var(--bd-paper); text-decoration: none; }
.bd-nav a:hover { color: var(--bd-tape); }
.bd-stake { display: none; background: var(--bd-tape); color: #fff; border: 0; font: inherit; padding: 8px 14px; cursor: pointer; }
.bd-corners { display: none; background: #22281c; padding: 0 20px 12px; }
.bd-corners[hidden] { display: none; }
.bd-corners a { display: block; color: var(--bd-paper); text-decoration: none; padding: 10px 0; border-bottom: 1px solid #ffffff18; }
h1, h2, h3 { font-family: var(--bd-disp); line-height: 1.2; margin: 0 0 12px; }
h1 { font-size: clamp(1.8rem, 3.8vw, 2.4rem); }
h2 { font-size: clamp(1.3rem, 2.3vw, 1.7rem); }
p { margin: 0 0 14px; }
.bd-kicker { margin: 0 0 8px; font-size: 0.74rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--bd-tape); font-weight: 600; }
.bd-lead { font-size: 1.1rem; }
.bd-block { padding: 40px 0; border-bottom: 1px solid #c8c0a8; }
.bd-notesheet { list-style: none; margin: 16px 0 0; padding: 0; }
.bd-notesheet li { display: grid; grid-template-columns: 110px 1fr; gap: 16px; padding: 18px 0; border-top: 2px solid var(--bd-stake); }
.bd-mon { font-family: var(--bd-disp); font-size: 1.05rem; color: var(--bd-tape); }
.bd-bearing { font-variant-numeric: tabular-nums; letter-spacing: 0.04em; color: var(--bd-stake); font-weight: 600; margin: 0 0 6px; }
.bd-packs { list-style: none; margin: 16px 0; padding: 0; }
.bd-pack { padding: 12px 0; border-bottom: 1px solid #c8c0a8; }
.bd-pack--on { background: var(--bd-card); padding: 12px 14px; border: 2px solid var(--bd-tape); }
.bd-pack-sub { margin: 0 0 4px; color: var(--bd-mute); }
.bd-pack-pay { font-family: var(--bd-disp); font-size: 1.4rem; margin: 0 0 6px; }
.bd-pack-pay span { font-family: var(--bd-ui); font-size: 0.85rem; color: var(--bd-mute); }
.bd-list { margin: 0; padding: 0 0 0 18px; }
.bd-list li { margin-bottom: 8px; }
.bd-pair { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 28px; }
.bd-form { background: var(--bd-card); padding: 20px; border: 1px solid var(--bd-stake); }
.bd-f { margin-bottom: 12px; }
.bd-l { display: block; font-weight: 600; margin-bottom: 4px; }
.bd-hint { display: block; font-size: 0.8rem; color: var(--bd-mute); }
.bd-in { width: 100%; font: inherit; padding: 9px 10px; border: 1px solid var(--bd-stake); background: #fff; }
.bd-tick { display: grid; grid-template-columns: 22px 1fr; gap: 10px; margin: 12px 0; font-size: 0.86rem; }
.bd-go { width: 100%; background: var(--bd-tape); color: #fff; border: 0; font: inherit; font-weight: 600; padding: 12px 16px; cursor: pointer; }
.bd-note { min-height: 1.2em; font-weight: 600; }
.bd-note.is-bad { color: #8d2418; }
.bd-note.is-good { color: #1d5a32; }
.bd-pinned { background: var(--bd-stake); color: var(--bd-paper); padding: 22px; }
.bd-doc { padding: 36px 0 48px; }
.bd-doc h2 { margin-top: 28px; font-size: 1.25rem; }
.bd-idx { background: var(--bd-card); padding: 16px 18px; margin: 16px 0 24px; }
.bd-aside { background: var(--bd-card); padding: 16px 18px; margin: 0 0 20px; border-left: 5px solid var(--bd-tape); }
.bd-foot { background: var(--bd-stake); color: #d4d0be; padding: 28px 0; font-size: 0.9rem; }
.bd-foot a { color: #fff; }
@media (max-width: 800px) {
  .bd-nav { display: none; }
  .bd-stake { display: inline-block; }
  .bd-corners { display: block; }
  .bd-notesheet li, .bd-pair { grid-template-columns: 1fr; }
}