/* The River Guide Journal — Topo Map visual.
   Contour lines, water blue, map grid. Sans-serif, no rounded corners, no emoji. */
:root {
  --bg: #f2efe4;
  --panel: #fbfaf4;
  --ink: #2f3a34;
  --muted: #6d766e;
  --grid: #c9cdbb;
  --contour: #b9c2a8;
  --accent: #3f6d4e;
  --accent-dk: #2c5039;
  --water: #2f6f8f;
  --water-dk: #235570;
  --signal: #a5472f;
  --brown: #6f5c33;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body.topo {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  color: var(--ink);
  line-height: 1.6;
  font-size: 16px;
  background-color: var(--bg);
  /* map grid motif */
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 46px 46px, 46px 46px;
  background-position: -1px -1px, -1px -1px;
}
.map-wrap { max-width: 1120px; margin: 0 auto; padding: 0 22px; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-dk); text-decoration: underline; }

/* ---- atlas header ---- */
.atlas-bar {
  background: var(--panel);
  border-bottom: 2px solid var(--accent);
  box-shadow: 0 1px 0 var(--grid);
}
.atlas-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 22px; }
.atlas-brand { display: flex; align-items: center; gap: 12px; color: var(--ink); }
.atlas-mark { display: inline-flex; align-items: center; }
.atlas-title { display: flex; flex-direction: column; line-height: 1.2; }
.atlas-name { font-weight: 700; letter-spacing: .2px; }
.atlas-sub { font-size: 11px; color: var(--muted); letter-spacing: 1.2px; text-transform: uppercase; }
.atlas-nav { display: flex; gap: 20px; }
.atlas-nav a {
  color: var(--ink); font-size: 13px; letter-spacing: .4px; text-transform: uppercase;
  padding-bottom: 3px; border-bottom: 2px solid transparent;
}
.atlas-nav a:hover { border-bottom-color: var(--water); text-decoration: none; color: var(--water-dk); }

/* ---- hero plat ---- */
.plat {
  background: var(--panel);
  border-bottom: 1px solid var(--grid);
  position: relative;
  overflow: hidden;
}
.plat::after {
  /* faint contour band on the right edge */
  content: "";
  position: absolute; top: 0; right: 0; bottom: 0; width: 40%;
  background-image:
    radial-gradient(circle at 80% 30%, transparent 42px, var(--contour) 43px, transparent 44px),
    radial-gradient(circle at 80% 30%, transparent 70px, var(--contour) 71px, transparent 72px),
    radial-gradient(circle at 80% 30%, transparent 98px, var(--contour) 99px, transparent 100px),
    radial-gradient(circle at 80% 30%, transparent 126px, var(--contour) 127px, transparent 128px);
  opacity: .5;
  pointer-events: none;
}
.plat-inner { position: relative; z-index: 1; padding: 46px 0 40px; }
.plat-kicker { color: var(--accent); font-size: 12px; letter-spacing: 2.4px; font-weight: 700; margin-bottom: 12px; }
.plat h1 { font-size: 36px; line-height: 1.14; font-weight: 700; margin-bottom: 14px; max-width: 760px; }
.plat-lede { max-width: 640px; color: var(--muted); font-size: 17px; margin-bottom: 26px; }

.scale-key { border-left: 3px solid var(--water); padding-left: 16px; }
.key-label, .panel-label {
  display: block; font-size: 12px; letter-spacing: 2px; text-transform: uppercase;
  color: var(--muted); font-weight: 700; margin-bottom: 12px;
}
.scale-list { list-style: none; display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
.scale-list li { border-top: 2px solid var(--contour); padding-top: 8px; display: flex; flex-direction: column; }
.scale-num { font-weight: 700; color: var(--accent); font-size: 18px; line-height: 1; }
.scale-name { font-size: 12px; font-weight: 700; letter-spacing: .5px; text-transform: uppercase; margin-top: 4px; }
.scale-note { font-size: 11px; color: var(--muted); margin-top: 3px; line-height: 1.4; }

/* ---- sections ---- */
section { padding: 30px 0; }
.basins { padding-top: 34px; }
.basin-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border: 1px solid var(--grid); }
.basin-tile {
  background: var(--panel); border-right: 1px solid var(--grid);
  padding: 18px 16px; display: flex; flex-direction: column; gap: 6px; color: var(--ink);
  border-top: 3px solid var(--accent);
}
.basin-tile:last-child { border-right: 0; }
.basin-tile:hover { background: #f4f5ec; text-decoration: none; }
.basin-count { font-size: 11px; letter-spacing: 1px; text-transform: uppercase; color: var(--muted); font-variant-numeric: tabular-nums; }
.basin-name { font-weight: 700; font-size: 18px; }
.basin-scan { font-size: 11px; color: var(--muted); letter-spacing: .6px; }
.b-gear { border-top-color: var(--accent); }
.b-guide { border-top-color: var(--water); }
.b-rescue { border-top-color: var(--signal); }
.b-trip { border-top-color: var(--brown); }

/* ---- reach card (River Run Card) ---- */
.tract { padding-top: 24px; }
.tract-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 16px; border-bottom: 1px solid var(--grid); padding-bottom: 8px; }
.tract-head h2 { font-size: 22px; font-weight: 700; }
.tract-more { font-size: 13px; letter-spacing: .4px; text-transform: uppercase; }
.run-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.run-card {
  display: flex; flex-direction: column; gap: 10px; color: var(--ink);
  background: var(--panel); border: 1px solid var(--grid); border-top: 3px solid var(--accent);
  padding: 16px;
  /* faint contour hatch to read as map paper */
  background-image: repeating-linear-gradient(135deg, transparent 0, transparent 13px, rgba(185,194,168,.28) 13px, rgba(185,194,168,.28) 14px);
}
.run-card:hover { border-color: var(--water); text-decoration: none; }
.run-card.b-guide { border-top-color: var(--water); }
.run-card.b-rescue { border-top-color: var(--signal); }
.run-card.b-trip { border-top-color: var(--brown); }
.run-head { display: flex; align-items: center; justify-content: space-between; }
.water-tag {
  font-size: 10px; font-weight: 700; letter-spacing: .8px; text-transform: uppercase;
  color: var(--accent); border: 1px solid currentColor; padding: 2px 7px;
}
.water-tag.b-guide { color: var(--water-dk); }
.water-tag.b-rescue { color: var(--signal); }
.water-tag.b-trip { color: var(--brown); }
.class-chip { font-size: 12px; font-weight: 700; color: var(--ink); font-variant-numeric: tabular-nums; }
.run-title { font-weight: 700; font-size: 16px; line-height: 1.3; }
.run-rule { height: 1px; background: var(--grid); display: block; }
.run-facts { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 8px 12px; }
.run-fact { display: flex; flex-direction: column; font-size: 12px; }
.rf-k { font-size: 10px; letter-spacing: .6px; text-transform: uppercase; color: var(--muted); font-weight: 700; }
.rf-v { color: var(--ink); }
.run-hazards { list-style: none; }
.run-hazards li { font-size: 12px; padding-left: 12px; position: relative; }
.run-hazards li::before { content: "\2022"; position: absolute; left: 0; color: var(--signal); }

/* ---- page heads ---- */
.basin-head, .reach-head { padding: 34px 0 8px; }
.crumb { font-size: 12px; color: var(--muted); margin-bottom: 8px; letter-spacing: .4px; text-transform: uppercase; }
.crumb a { color: var(--muted); }
.reach-head h1, .basin-head h1 { font-size: 30px; line-height: 1.2; font-weight: 700; }
.lede { color: var(--muted); margin-top: 8px; }

/* ---- reach layout ---- */
.reach-layout { display: grid; grid-template-columns: 320px 1fr; gap: 26px; padding-top: 22px; padding-bottom: 44px; align-items: start; }
.run-card-full {
  background: var(--panel); border: 1px solid var(--grid); border-top: 3px solid var(--accent);
  background-image: repeating-linear-gradient(135deg, transparent 0, transparent 15px, rgba(185,194,168,.24) 15px, rgba(185,194,168,.24) 16px);
}
.run-card-full.b-guide { border-top-color: var(--water); }
.run-card-full.b-rescue { border-top-color: var(--signal); }
.run-card-full.b-trip { border-top-color: var(--brown); }
.rc-head { display: flex; align-items: center; justify-content: space-between; padding: 13px 15px; border-bottom: 1px solid var(--grid); }
.rc-title { font-weight: 700; font-size: 14px; letter-spacing: .6px; text-transform: uppercase; }
.gauge-legend { font-size: 10px; letter-spacing: 1.4px; text-transform: uppercase; color: var(--muted); padding: 10px 15px 2px; }
.gauge-row { display: flex; border-top: 1px solid var(--grid); font-size: 14px; }
.gauge-key { flex: 0 0 40%; padding: 10px 15px; color: var(--muted); border-right: 1px solid var(--grid); font-size: 12px; letter-spacing: .3px; text-transform: uppercase; }
.gauge-val { flex: 1; padding: 10px 15px; }
.gauge-val .run-hazards li { font-size: 13px; }

.river-prose { background: var(--panel); border: 1px solid var(--grid); padding: 26px 30px; }
.wrap-prose { margin-top: 12px; margin-bottom: 44px; }
.river-prose .sec { margin-bottom: 26px; padding-bottom: 4px; }
.river-prose .sec:last-child { margin-bottom: 0; }
.river-prose h2 { font-size: 19px; font-weight: 700; margin-bottom: 10px; display: flex; align-items: baseline; gap: 10px; }
.sec-num { color: var(--water); font-variant-numeric: tabular-nums; font-size: 14px; font-weight: 700; }
.river-prose p { margin-bottom: 12px; color: #333a35; }
.river-prose p:last-child { margin-bottom: 0; }
.river-prose h2.legal { font-size: 18px; }
.related-list { list-style: none; margin: 0; padding: 0; }
.related-list li { padding: 7px 0; border-bottom: 1px solid var(--grid); }
.related-list li:first-child { border-top: 1px solid var(--grid); }

/* ---- footer ---- */
.atlas-foot { background: var(--panel); border-top: 2px solid var(--accent); margin-top: 24px; padding: 28px 0; }
.foot-inner { display: flex; flex-wrap: wrap; gap: 20px; align-items: flex-start; }
.foot-brand { flex: 1 1 320px; }
.foot-brand p { color: var(--muted); font-size: 14px; margin-top: 6px; max-width: 460px; }
.foot-nav { display: flex; gap: 16px; }
.foot-nav a { color: var(--ink); font-size: 14px; }
.foot-note { flex: 1 1 100%; font-size: 12px; color: var(--muted); margin-top: 12px; border-top: 1px solid var(--grid); padding-top: 12px; }

@media (max-width: 900px) {
  .scale-list { grid-template-columns: repeat(2, 1fr); }
  .basin-grid { grid-template-columns: repeat(2, 1fr); }
  .basin-tile { border-right: 0; border-bottom: 1px solid var(--grid); }
  .run-grid { grid-template-columns: repeat(2, 1fr); }
  .reach-layout { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .scale-list { grid-template-columns: 1fr; }
  .basin-grid { grid-template-columns: 1fr; }
  .run-grid { grid-template-columns: 1fr; }
  .plat h1 { font-size: 28px; }
  .atlas-inner { flex-direction: column; gap: 10px; align-items: flex-start; }
  .atlas-nav { gap: 14px; }
  .river-prose { padding: 20px 18px; }
  .gauge-row { flex-direction: column; }
  .gauge-key { flex: none; border-right: 0; border-bottom: 1px solid var(--grid); }
}