:root {
  --bg: #fafaf7;
  --fg: #1a1a1a;
  --muted: #666;
  --accent: #2d5a3d;
  --accent-light: #7fb069;
  --border: #e5e5e0;
  --row-hover: #f0efe8;
  --row-stripe: #f5f4ef;
  --panel: #ffffff;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--fg);
  background: var(--bg);
  line-height: 1.5;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- nav ---------- */
.nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.75rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-brand { font-weight: 700; font-size: 1.1rem; color: var(--accent); }
.nav-links { display: flex; gap: 1.25rem; }
.nav-links a { color: var(--fg); font-size: 0.95rem; }
.nav-spacer { flex: 1; }
.nav-meta { font-size: 0.85rem; color: var(--muted); }

/* ---------- containers ---------- */
.container { max-width: 1100px; margin: 0 auto; padding: 1.5rem; }
.container-wide { max-width: 100%; padding: 1rem 1.5rem; }

/* ---------- home ---------- */
.hero {
  position: relative;
  background-color: #2d5a3d;
  background-image: linear-gradient(135deg, #1f3a2e 0%, #2d5a3d 50%, #7fb069 100%);
  background-size: cover;
  background-position: center;
  color: white;
  padding: 6rem 2rem;
  text-align: center;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.3), rgba(0,0,0,0.55));
}
.hero-inner { position: relative; max-width: 800px; margin: 0 auto; }
.hero h1 { font-size: 3rem; margin: 0 0 0.5rem; font-weight: 700; }
.hero p.lede { font-size: 1.25rem; margin: 0 0 2rem; opacity: 0.95; }
.cta-row { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background: var(--accent);
  color: white;
  border-radius: 6px;
  font-weight: 600;
  border: 1px solid var(--accent);
}
.btn:hover { background: #1f4530; text-decoration: none; }
.btn-secondary { background: white; color: var(--accent); }
.btn-secondary:hover { background: var(--row-hover); }

/* ---------- region grid ---------- */
.region-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}
.region-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  color: var(--fg);
}
.region-card:hover { border-color: var(--accent); text-decoration: none; }
.region-card h3 { margin: 0 0 0.25rem; font-size: 1rem; }
.region-card .count { color: var(--muted); font-size: 0.85rem; }

/* ---------- table page ---------- */
.table-toolbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
  flex-wrap: wrap;
}
.table-toolbar input[type="search"] {
  flex: 1;
  min-width: 200px;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 0.95rem;
}
.table-toolbar .stat { color: var(--muted); font-size: 0.9rem; white-space: nowrap; }

#table-host {
  position: relative;
  overflow: auto;
  height: calc(100vh - 130px);
  background: var(--panel);
}
.atlas-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.atlas-table thead {
  position: sticky;
  top: 0;
  background: var(--panel);
  z-index: 10;
}
.atlas-table th {
  text-align: left;
  padding: 0.6rem 0.75rem;
  border-bottom: 2px solid var(--border);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
  font-weight: 600;
}
.atlas-table th:hover { background: var(--row-hover); }
.atlas-table th .caret { color: var(--muted); margin-left: 0.25rem; }
.atlas-table th.sorted-asc .caret::after { content: "▲"; color: var(--accent); }
.atlas-table th.sorted-desc .caret::after { content: "▼"; color: var(--accent); }
.atlas-table th.unsorted .caret::after { content: "↕"; opacity: 0.4; }

.atlas-table .filter-row th { padding: 0.4rem 0.5rem; cursor: default; font-weight: 400; border-bottom: 1px solid var(--border); }
.atlas-table .filter-row input,
.atlas-table .filter-row select {
  width: 100%;
  padding: 0.25rem 0.4rem;
  border: 1px solid var(--border);
  border-radius: 3px;
  font-size: 0.85rem;
  background: var(--bg);
}

.atlas-table tbody tr { cursor: pointer; }
.atlas-table tbody tr:nth-child(even) { background: var(--row-stripe); }
.atlas-table tbody tr:hover { background: var(--row-hover); }
.atlas-table td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 240px;
}
.atlas-table td.num { text-align: right; font-variant-numeric: tabular-nums; }

/* ---------- map page ---------- */
#map { height: calc(100vh - 60px); }
.map-toolbar {
  position: absolute;
  top: 70px;
  right: 1rem;
  z-index: 500;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.85rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
.map-toolbar select { padding: 0.3rem; border: 1px solid var(--border); border-radius: 3px; }
.map-toolbar .stat { color: var(--muted); font-size: 0.8rem; }

/* ---------- campground detail ---------- */
.detail-hero {
  background-color: #2d5a3d;
  background-image: linear-gradient(135deg, #1f3a2e 0%, #2d5a3d 60%, #4a7553 100%);
  background-size: cover;
  background-position: center;
  padding: 4rem 1.5rem 3rem;
  color: white;
  position: relative;
}
.detail-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.25), rgba(0,0,0,0.6));
}
.detail-hero-inner { position: relative; max-width: 1100px; margin: 0 auto; }
.detail-hero .breadcrumb { font-size: 0.9rem; opacity: 0.9; }
.detail-hero .breadcrumb a { color: white; }
.detail-hero h1 { margin: 0.25rem 0; font-size: 2.4rem; }
.detail-hero .location { font-size: 1.1rem; opacity: 0.95; }

.detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: 2rem;
  margin: 2rem 0;
}
@media (max-width: 800px) {
  .detail-grid { grid-template-columns: 1fr; }
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.75rem;
  margin: 1rem 0;
}
.stat-cell {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.75rem;
}
.stat-cell .label { font-size: 0.75rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
.stat-cell .value { font-size: 1.05rem; font-weight: 600; margin-top: 0.15rem; }

.chip-row { display: flex; gap: 0.4rem; flex-wrap: wrap; margin: 0.5rem 0; }
.chip {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  background: var(--accent-light);
  color: var(--fg);
  border-radius: 999px;
  font-size: 0.8rem;
}

.action-row { display: flex; gap: 0.5rem; flex-wrap: wrap; margin: 1rem 0; }

#detail-map { height: 280px; border-radius: 8px; }

.nearby-list { list-style: none; padding: 0; margin: 0; }
.nearby-list li { padding: 0.5rem 0; border-bottom: 1px solid var(--border); }
.nearby-list li:last-child { border-bottom: none; }
.nearby-list .dist { color: var(--muted); font-size: 0.85rem; margin-left: 0.5rem; }

.sources { font-size: 0.85rem; color: var(--muted); margin-top: 2rem; padding-top: 1rem; border-top: 1px solid var(--border); }

footer { padding: 2rem 1.5rem; text-align: center; color: var(--muted); font-size: 0.85rem; border-top: 1px solid var(--border); margin-top: 3rem; }