/* Earth Swarm. Sage paper, ink, kingfisher; ochre marks change. */
:root {
  --bg: #EDF1EC;
  --paper: #F7F9F5;
  --ink: #16211C;
  --muted: #56655D;
  --rule: #C9D3CB;
  --accent: #0A7384;
  --accent-ink: #FFFFFF;
  --accent-soft: #D3E7E9;
  --ochre: #B7780F;
  --ochre-soft: #F3E4C4;
  --context: #7F9288;
  --good: #2E7D4F;
  --warn: #A5620B;
  --shadow: 0 1px 2px rgba(22, 33, 28, .06), 0 8px 24px rgba(22, 33, 28, .08);
  --display: "Bricolage Grotesque", ui-sans-serif, system-ui, sans-serif;
  --body: "Newsreader", Georgia, "Times New Roman", serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
  --radius: 8px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #0D1513; --paper: #131E1B; --ink: #E2EAE5; --muted: #9AABA2; --rule: #2A3833;
    --accent: #4CB8C7; --accent-ink: #0D1513; --accent-soft: #16343A; --ochre: #E2A845; --ochre-soft: #3A2E17;
    --context: #7A8F86; --good: #5CC08A; --warn: #E2A845;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .35);
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0D1513; --paper: #131E1B; --ink: #E2EAE5; --muted: #9AABA2; --rule: #2A3833;
  --accent: #4CB8C7; --accent-ink: #0D1513; --accent-soft: #16343A; --ochre: #E2A845; --ochre-soft: #3A2E17;
  --context: #7A8F86; --good: #5CC08A; --warn: #E2A845;
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .35);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body);
  font-size: 18px;
  line-height: 1.6;
  font-optical-sizing: auto;
}
a { color: var(--accent); text-underline-offset: .15em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 2px; }
img { max-width: 100%; display: block; }
h1, h2, h3 { font-family: var(--display); line-height: 1.1; margin: 0; text-wrap: balance; }
h1 { font-size: clamp(40px, 7vw, 84px); font-weight: 800; letter-spacing: -0.03em; }
h2 { font-size: clamp(26px, 3.6vw, 38px); font-weight: 700; letter-spacing: -0.015em; }
h3 { font-size: 20px; font-weight: 700; }
p { margin: 0; }
.skip { position: absolute; left: -9999px; top: 8px; background: var(--paper); padding: 8px 12px; z-index: 100; }
.skip:focus { left: 8px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Header */
.site-head {
  display: flex; align-items: center; gap: 12px 24px; flex-wrap: wrap;
  padding: 12px 20px; border-bottom: 1px solid var(--rule); background: var(--bg);
  position: relative; z-index: 10;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-family: var(--display); font-weight: 800; font-size: 21px; letter-spacing: -0.02em; }
.brand svg { width: 28px; height: 28px; flex: none; }
.nav { display: flex; flex-wrap: wrap; gap: 4px 18px; margin-left: auto; font-family: var(--mono); font-size: 13.5px; }
.nav a { color: var(--ink); text-decoration: none; padding: 6px 0; border-bottom: 2px solid transparent; }
.nav a:hover, .nav a[aria-current="page"] { border-bottom-color: var(--accent); }

/* Page layout */
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 20px; }
.read { max-width: 68ch; }
main.page { padding-top: 40px; padding-bottom: 72px; display: flex; flex-direction: column; gap: 40px; }
.stack { display: flex; flex-direction: column; gap: 16px; }
.stack.tight { gap: 8px; }
.eyebrow { font-family: var(--mono); font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.lede { font-size: clamp(20px, 2.4vw, 24px); line-height: 1.45; max-width: 36ch; }
.muted { color: var(--muted); }
.mono { font-family: var(--mono); font-size: .84em; }
section.block { border-top: 1px solid var(--rule); padding-top: 32px; display: flex; flex-direction: column; gap: 20px; }
.cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.panel { background: var(--paper); border: 1px solid var(--rule); border-radius: var(--radius); padding: 20px; display: flex; flex-direction: column; gap: 10px; }
.panel p { font-size: 16.5px; }
.tag { align-self: flex-start; font-family: var(--mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; padding: 3px 8px; border-radius: 3px; background: var(--accent-soft); color: var(--accent); }
.tag.ochre { background: var(--ochre-soft); color: var(--ochre); }
.tag.context { background: transparent; border: 1px dashed var(--context); color: var(--muted); }
ul.clean, ol.clean { margin: 0; padding-left: 1.2em; display: flex; flex-direction: column; gap: 8px; }
ul.clean li::marker, ol.clean li::marker { color: var(--accent); font-family: var(--mono); }
.callout { border-left: 3px solid var(--ochre); padding: 4px 0 4px 18px; max-width: 62ch; }
.empty {
  border: 1px dashed var(--rule); border-radius: var(--radius); padding: 24px; color: var(--muted);
  background: var(--paper); font-size: 17px;
}
.empty strong { color: var(--ink); font-family: var(--display); display: block; font-size: 19px; margin-bottom: 4px; }
.empty p + p { margin-top: 8px; }
.notice { font-family: var(--mono); font-size: 13px; color: var(--warn); }

/* Tables */
.tbl { overflow-x: auto; border: 1px solid var(--rule); border-radius: var(--radius); background: var(--paper); }
table { border-collapse: collapse; width: 100%; min-width: 560px; font-size: 16px; }
th, td { text-align: left; vertical-align: top; padding: 11px 14px; border-bottom: 1px solid var(--rule); }
th { font-family: var(--mono); font-size: 12px; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); font-weight: 500; }
tr:last-child td { border-bottom: 0; }
td.num, th.num { text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums; }

/* Code */
pre, code { font-family: var(--mono); font-size: 14px; }
pre { background: var(--paper); border: 1px solid var(--rule); border-radius: var(--radius); padding: 14px 16px; overflow-x: auto; line-height: 1.5; margin: 0; }
:not(pre) > code { background: var(--accent-soft); padding: 1px 5px; border-radius: 3px; }

/* Forms */
form.form { display: flex; flex-direction: column; gap: 18px; max-width: 640px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label, .field legend { font-family: var(--display); font-weight: 700; font-size: 16px; }
.field .hint { font-size: 15px; color: var(--muted); }
.field input[type="text"], .field input[type="email"], .field input[type="number"], .field textarea, .field select, .search input {
  font: inherit; font-size: 17px; color: var(--ink); background: var(--paper);
  border: 1px solid var(--rule); border-radius: 6px; padding: 10px 12px; min-height: 44px; width: 100%;
}
.field textarea { min-height: 120px; resize: vertical; }
.field input:focus, .field textarea:focus, .search input:focus { outline: 2px solid var(--accent); outline-offset: 0; border-color: var(--accent); }
.field .problem { color: var(--warn); font-size: 15px; min-height: 0; }
.field[data-invalid] input, .field[data-invalid] textarea { border-color: var(--warn); }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: 16.5px; }
.check input { width: 22px; height: 22px; margin-top: 3px; accent-color: var(--accent); flex: none; }
.row { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 10px; }
button, .button {
  font-family: var(--mono); font-size: 14px; letter-spacing: .02em; cursor: pointer;
  border-radius: 6px; padding: 10px 16px; min-height: 44px; border: 1px solid var(--accent);
  background: var(--accent); color: var(--accent-ink); text-decoration: none; display: inline-flex; align-items: center; justify-content: center; gap: 8px;
}
button.ghost, .button.ghost { background: transparent; color: var(--ink); border-color: var(--rule); }
button:disabled { opacity: .55; cursor: not-allowed; }
.status { font-size: 16.5px; }
.status.ok { color: var(--good); }
.status.bad { color: var(--warn); }

/* Footer */
.site-foot { border-top: 1px solid var(--rule); padding: 28px 20px 40px; font-family: var(--mono); font-size: 12.5px; color: var(--muted); display: flex; flex-wrap: wrap; gap: 8px 24px; }
.site-foot a { color: var(--muted); }

/* Charts (inline SVG bars) */
.bars { display: grid; gap: 6px; }
.bar-row { display: grid; grid-template-columns: 11ch 1fr 7ch; gap: 10px; align-items: center; font-family: var(--mono); font-size: 13px; }
.bar-track { display: block; height: 14px; background: var(--accent-soft); border-radius: 3px; overflow: hidden; }
.bar-fill { display: block; height: 100%; background: var(--accent); }
.bar-fill.context { background: var(--context); }

/* Photo grid */
.photos { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.photos figure { margin: 0; background: var(--paper); border: 1px solid var(--rule); border-radius: 6px; overflow: hidden; }
.photos img { aspect-ratio: 1 / 1; object-fit: cover; width: 100%; }
.photos figcaption { font-family: var(--mono); font-size: 12px; color: var(--muted); padding: 6px 8px; }

/* ---------- Explorer ---------- */
body.explorer { height: 100dvh; display: flex; flex-direction: column; overflow: hidden; }
.explorer-main { position: relative; flex: 1; min-height: 0; }
#map { position: absolute; inset: 0; background: var(--bg); }
.overlay {
  position: absolute; z-index: 5; background: color-mix(in srgb, var(--paper) 94%, transparent);
  border: 1px solid var(--rule); border-radius: 10px; box-shadow: var(--shadow);
  backdrop-filter: blur(6px);
}
.controls { left: 16px; top: 16px; width: min(380px, calc(100% - 32px)); padding: 18px; display: flex; flex-direction: column; gap: 14px; max-height: calc(100% - 32px); overflow: auto; }
.controls h1 { font-size: 30px; letter-spacing: -0.02em; }
.controls .lede { font-size: 16.5px; max-width: none; }
.search { position: relative; }
.search ul { list-style: none; margin: 4px 0 0; padding: 4px; position: absolute; left: 0; right: 0; z-index: 6; background: var(--paper); border: 1px solid var(--rule); border-radius: 6px; box-shadow: var(--shadow); max-height: 260px; overflow: auto; }
.search li { padding: 8px 10px; border-radius: 4px; cursor: pointer; font-size: 16px; }
.search li[aria-selected="true"], .search li:hover { background: var(--accent-soft); }
.search li small { font-family: var(--mono); color: var(--muted); font-size: 12px; margin-left: 6px; }
.filter-chip { display: none; align-items: center; gap: 8px; font-family: var(--mono); font-size: 13px; }
.filter-chip.on { display: flex; }
.filter-chip button { min-height: 32px; padding: 4px 10px; font-size: 12px; }
.time { display: grid; grid-template-columns: auto 1fr auto; gap: 10px; align-items: center; font-family: var(--mono); font-size: 13px; color: var(--muted); }
.time input[type="range"] { width: 100%; accent-color: var(--ochre); min-height: 32px; }
.time output { color: var(--ochre); font-weight: 500; min-width: 4ch; text-align: right; font-variant-numeric: tabular-nums; font-size: 15px; }
.time-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.time-row select { font: inherit; font-family: var(--mono); font-size: 13px; color: var(--ink); background: var(--paper); border: 1px solid var(--rule); border-radius: 6px; padding: 6px 8px; min-height: 40px; }
.time-row button { min-height: 40px; padding: 6px 12px; }
.layers { display: flex; flex-direction: column; gap: 8px; border: 0; padding: 0; margin: 0; }
.layers legend { font-family: var(--mono); font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: 4px; }
.layer { display: grid; grid-template-columns: 22px 18px 1fr; gap: 10px; align-items: center; font-size: 16px; }
.layer input { width: 20px; height: 20px; accent-color: var(--accent); }
.swatch { width: 16px; height: 16px; border-radius: 3px; }
.swatch.finds { background: var(--accent); }
.swatch.context { background: transparent; border: 2px dashed var(--context); }
.swatch.change { background: transparent; border: 2px solid var(--ochre); border-radius: 50%; }
.stat-line { font-family: var(--mono); font-size: 12.5px; color: var(--muted); }
.map-empty { position: absolute; z-index: 4; left: 50%; top: 50%; transform: translate(-50%, -50%); width: min(440px, calc(100% - 32px)); text-align: left; }
.map-note { left: 50%; transform: translateX(-50%); bottom: 16px; padding: 8px 12px; font-family: var(--mono); font-size: 12px; color: var(--warn); width: max-content; max-width: min(360px, calc(100% - 32px)); }
.detail { right: 16px; top: 16px; width: min(360px, calc(100% - 32px)); padding: 18px; display: none; flex-direction: column; gap: 10px; max-height: calc(100% - 32px); overflow: auto; }
.detail.open { display: flex; }
.detail .close { position: absolute; right: 10px; top: 10px; min-height: 36px; padding: 4px 10px; }
.detail img { border-radius: 6px; border: 1px solid var(--rule); }
.detail dl { display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; margin: 0; font-size: 15.5px; }
.detail dt { font-family: var(--mono); font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; padding-top: 3px; }
.detail dd { margin: 0; }
.controls-toggle { display: none; }

@media (max-width: 720px) {
  body { font-size: 17px; }
  .site-head { padding: 10px 16px; }
  .nav { gap: 2px 14px; font-size: 13px; }
  .wrap { padding: 0 16px; }
  .controls { left: 8px; right: 8px; top: auto; bottom: 8px; width: auto; max-height: 55%; padding: 14px; }
  .controls.collapsed > :not(.controls-bar) { display: none; }
  .controls-toggle { display: inline-flex; min-height: 36px; padding: 4px 10px; }
  .controls-bar { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
  .controls h1 { font-size: 24px; }
  .detail { left: 8px; right: 8px; top: 8px; width: auto; max-height: 45%; }
  .map-note { left: 8px; right: 8px; transform: none; width: auto; bottom: auto; top: 8px; }
  .map-empty { top: 64px; left: 8px; right: 8px; transform: none; width: auto; max-height: calc(45% - 72px); overflow: auto; }
  .map-empty .empty { padding: 16px; font-size: 15.5px; }
  .bar-row { grid-template-columns: 8ch 1fr 6ch; }
}
@media (min-width: 721px) { .controls-bar { display: contents; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}