:root {
  --ink: #1c1914;
  --ink-soft: #4a453c;
  --paper: #f3eee3;
  --paper-2: #e7e0d1;
  --card: #fffaf1;
  --lake: #1b4a56;
  --lake-2: #2d6a78;
  --amber: #b8892e;
  --amber-2: #d7b15a;
  --running: #2f6b3a;
  --wake: #c48a12;
  --closed: #6d6a63;
  --proposed: #1f5f8b;
  --danger: #8b3a2a;
  --line: rgba(28, 25, 20, 0.12);
  --shadow: 0 18px 40px rgba(28, 25, 20, 0.08);
  --serif: "Source Serif 4", "Iowan Old Style", Georgia, serif;
  --sans: "IBM Plex Sans", "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background:
    radial-gradient(1200px 500px at 10% -10%, rgba(45, 106, 120, 0.08), transparent 50%),
    radial-gradient(900px 400px at 100% 0%, rgba(184, 137, 46, 0.08), transparent 45%),
    var(--paper);
  line-height: 1.55;
  min-height: 100vh;
}

a { color: var(--lake); }
button, input, select { font: inherit; }

.skip {
  position: absolute;
  left: -999px;
  top: 0;
}
.skip:focus { left: 12px; background: #fff; padding: 8px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 22px;
  background: rgba(243, 238, 227, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.brand {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: var(--ink);
  min-width: 160px;
}
.brand small {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--lake);
}
.brand strong { font-family: var(--serif); font-size: 18px; font-weight: 600; }

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  flex: 1;
}
.nav a {
  text-decoration: none;
  color: var(--ink-soft);
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 13px;
}
.nav a.active, .nav a:hover {
  background: var(--paper-2);
  color: var(--ink);
}

.toggles { display: flex; gap: 8px; align-items: center; }
.toggle {
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 999px;
  padding: 2px;
  display: flex;
}
.toggle button {
  border: 0;
  background: transparent;
  padding: 6px 10px;
  border-radius: 999px;
  cursor: pointer;
  color: var(--ink-soft);
}
.toggle button[aria-pressed="true"] {
  background: var(--lake);
  color: #f6f1e6;
}

main { max-width: 1100px; margin: 0 auto; padding: 28px 22px 80px; }
.hero h1, .page h1, .session h1 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(28px, 5vw, 48px);
  line-height: 1.15;
  margin: 0 0 12px;
}
.lede { font-size: 18px; color: var(--ink-soft); max-width: 42rem; }

.freeze {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: #efe2c4;
  color: #6a4b10;
  padding: 4px 8px;
  border-radius: 4px;
  margin-bottom: 14px;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 10px;
  margin: 22px 0 28px;
}
.stat {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 16px;
  box-shadow: var(--shadow);
}
.stat b {
  display: block;
  font-family: var(--serif);
  font-size: 28px;
  line-height: 1;
}
.stat span { font-size: 12px; color: var(--ink-soft); }

.grid-2 {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 16px;
}
@media (max-width: 800px) {
  .grid-2, .compare, .cost-grid { grid-template-columns: 1fr; }
  .site-header { flex-wrap: wrap; }
}

.card, .session-card, .plant-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px 20px;
  box-shadow: var(--shadow);
}
.session-card a { text-decoration: none; color: inherit; display: block; }
.session-list { display: grid; gap: 10px; }
.session-card strong { font-family: var(--serif); font-size: 20px; display: block; }
.kicker {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--amber);
}

.prose p { max-width: 42rem; }
.prose p:first-of-type { font-size: 1.05rem; }

.pager { display: flex; justify-content: space-between; margin-top: 28px; }
.pager a {
  text-decoration: none;
  background: var(--lake);
  color: #f6f1e6;
  padding: 10px 14px;
  border-radius: 10px;
}

#map {
  height: 520px;
  border-radius: 16px;
  border: 1px solid var(--line);
  margin: 12px 0 16px;
  background: #d7e3e4;
}
.map-legend { display: flex; gap: 14px; flex-wrap: wrap; font-size: 13px; margin-bottom: 12px; }
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; margin-right: 6px; }
.dot.operating { background: var(--running); }
.dot.restarting { background: var(--wake); }
.dot.closed { background: var(--closed); }
.dot.proposed { background: var(--proposed); }

.plant-panel h2 { font-family: var(--serif); margin: 0 0 8px; }
.status-chip {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 999px;
  color: #fff;
  margin-left: 8px;
}
.status-chip.operating { background: var(--running); }
.status-chip.restarting { background: var(--wake); color: #1c1914; }
.status-chip.closed { background: var(--closed); }
.status-chip.proposed { background: var(--proposed); }

.slider-wrap { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 18px; }
.slider-wrap label { display: flex; justify-content: space-between; margin-bottom: 6px; }
input[type="range"] { width: 100%; }
.bars { display: grid; gap: 8px; margin-top: 16px; }
.bar-row { display: grid; grid-template-columns: 90px 1fr 140px; gap: 8px; align-items: center; font-size: 13px; }
.bar {
  height: 18px;
  background: var(--paper-2);
  border-radius: 99px;
  overflow: hidden;
}
.bar > span { display: block; height: 100%; background: var(--lake); }

.compare {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 16px;
}
.compare article h3 { font-family: var(--serif); margin: 0 0 8px; }
.compare .meta { font-family: var(--mono); font-size: 12px; color: var(--ink-soft); }

.cost-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
.house { min-height: 160px; }
.house h3 { font-family: var(--serif); }

.claim-grid { display: grid; gap: 10px; }
.claim {
  cursor: pointer;
  text-align: left;
  width: 100%;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px 16px;
}
.claim.active { border-color: var(--amber); }
.questions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }
.questions span {
  font-size: 12px;
  background: var(--paper-2);
  padding: 3px 8px;
  border-radius: 999px;
}

.glossary dt { font-family: var(--serif); font-size: 18px; margin-top: 14px; }
.glossary dd { margin: 0 0 8px; color: var(--ink-soft); }

.take {
  border-left: 3px solid var(--amber);
  padding: 8px 0 8px 14px;
  margin: 22px 0;
}
.counter {
  background: #efe8dc;
  border-radius: 12px;
  padding: 12px 14px;
  color: var(--ink-soft);
}

footer.site-footer {
  border-top: 1px solid var(--line);
  padding: 20px 22px 40px;
  color: var(--ink-soft);
  font-size: 13px;
  text-align: center;
}

.leaflet-container { font-family: var(--sans); }
.hidden { display: none; }
body.kids .adult-only { display: none; }
body.adult .kid-only { display: none; }


.map-toolbar { display: flex; gap: 8px; flex-wrap: wrap; margin: 0 0 10px; }
.map-toolbar button, .sheet-actions button, .sheet-actions a {
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 999px;
  padding: 8px 12px;
  cursor: pointer;
  text-decoration: none;
  color: var(--ink);
}
.map-toolbar button[aria-pressed="true"] {
  background: var(--lake);
  color: #f6f1e6;
  border-color: var(--lake);
}

.sheet {
  break-inside: avoid;
  page-break-inside: avoid;
  margin-bottom: 22px;
}
.sheet h2 { font-family: var(--serif); margin: 0 0 8px; }
.try-box {
  background: var(--paper-2);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 14px;
}

@media (max-width: 700px) {
  .site-header { padding: 10px 12px; gap: 8px; }
  .brand { min-width: auto; }
  .brand strong { font-size: 16px; }
  .nav { width: 100%; order: 3; overflow-x: auto; flex-wrap: nowrap; -webkit-overflow-scrolling: touch; }
  .nav a { white-space: nowrap; font-size: 12px; }
  main { padding: 18px 14px 72px; }
  .hero h1, .page h1, .session h1 { font-size: 28px; }
  #map { height: 360px; }
  .bar-row { grid-template-columns: 64px 1fr; }
  .bar-row span:last-child { grid-column: 1 / -1; color: var(--ink-soft); }
  .compare, .cost-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
}

@media print {
  .site-header, .site-footer, .toggles, .pager, .map-toolbar, .sheet-actions, .skip { display: none !important; }
  body { background: #fff; }
  main { max-width: none; padding: 0; }
  .sheet { page-break-after: always; border: 0; box-shadow: none; }
  .card, .session-card { box-shadow: none; }
}


/* Session 1 Biesty plates */
.cutaway {
  margin: 22px 0 28px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px 14px 18px;
  box-shadow: var(--shadow);
}
.plate-tabs { display: flex; gap: 6px; flex-wrap: wrap; margin: 8px 0 12px; }
.plate-tabs button {
  border: 1px solid var(--line);
  background: var(--paper);
  border-radius: 999px;
  padding: 7px 12px;
  cursor: pointer;
  color: var(--ink-soft);
}
.plate-tabs button[aria-pressed="true"] {
  background: var(--lake);
  color: #f6f1e6;
  border-color: var(--lake);
}
.plate { display: none; }
.plate.on { display: block; }
.plate-frame {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  background: #e8dcc4;
  border: 1px solid var(--line);
}
.plate-frame img {
  width: 100%;
  height: auto;
  display: block;
}
.hotspots { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.hotspots button {
  font-size: 12px;
  border: 1px solid var(--line);
  background: var(--paper-2);
  border-radius: 999px;
  padding: 5px 10px;
  cursor: pointer;
}
.hotspots button[aria-pressed="true"] { background: var(--amber-2); }
.plate-note {
  margin: 10px 0 0;
  font-size: 14px;
  color: var(--ink-soft);
  max-width: 42rem;
}
.chain-board {
  background: #efe6d2;
  border-radius: 10px;
  padding: 8px;
  border: 1px solid var(--line);
}
.chain-board svg { width: 100%; height: auto; display: block; }
.rod-ctrl { margin-top: 12px; }
.rod-ctrl label { display: flex; justify-content: space-between; font-size: 13px; }
.n-dot { offset-path: path("M 80 220 C 140 80, 260 80, 320 220"); animation: fly 2.8s linear infinite; }
.n-dot.d2 { animation-delay: -0.7s; offset-path: path("M 320 220 C 360 90, 500 90, 560 220"); }
.n-dot.d3 { animation-delay: -1.4s; offset-path: path("M 200 240 C 280 120, 400 300, 480 220"); }
.n-dot.d4 { animation-delay: -2.1s; offset-path: path("M 140 260 C 220 320, 420 60, 520 240"); }
@keyframes fly {
  0% { offset-distance: 0%; opacity: 0; }
  8% { opacity: 1; }
  85% { opacity: 1; }
  100% { offset-distance: 100%; opacity: 0; }
}
.board.rods-in .n-dot { animation-duration: 5.5s; opacity: 0.35; }
.board.rods-in .n-dot.caught { animation: none; opacity: 0; }
.rods { transition: transform 0.6s ease; }
.board.rods-in .rods { transform: translateY(62px); }
.heat-pulse { transform-origin: center; animation: pulse 2.2s ease-in-out infinite; }
.board.rods-in .heat-pulse { animation: none; opacity: 0.25; }
@keyframes pulse {
  0%, 100% { opacity: 0.25; transform: scale(0.92); }
  50% { opacity: 0.7; transform: scale(1.08); }
}
@media (prefers-reduced-motion: reduce) {
  .n-dot, .heat-pulse { animation: none !important; }
}
@media print {
  .cutaway { break-inside: avoid; }
}