:root {
  color-scheme: dark;
  --bg:        #0b0f0d;
  --surface:   #121815;
  --surface-2: #18201c;
  --surface-3: #1f2924;
  --border:    #233029;
  --text:      #e6efe9;
  --muted:     #94a49a;
  --faint:     #5f7067;
  --accent:    #3ddc84;
  --danger:    #ff6b5b;
  --warn:      #f4c542;

  /* Colores de especie: el cliente los sobrescribe con los del servidor (config.py) */
  --sp-herb_a:   rgb(0 200 100);
  --sp-predator: rgb(220 60 60);
  --sp-herb_b:   rgb(60 140 220);
  --sp-omnivore: rgb(160 60 200);
  --infected:    rgb(200 200 0);
  --grass:       rgb(56 130 56);

  --radius: 10px;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }

body {
  background: var(--bg);
  color: var(--text);
  font: 13px/1.45 var(--font);
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

.num { font-family: var(--mono); font-variant-numeric: tabular-nums; }

button { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ---------- Topbar ---------- */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 18px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, var(--surface) 0%, var(--bg) 100%);
  flex-shrink: 0;
}
.brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.brand img { flex-shrink: 0; }
.brand h1 { font-size: 15px; font-weight: 650; letter-spacing: 0.2px; }
.tagline { font-size: 11.5px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.topbar-stats { display: flex; align-items: center; gap: 18px; }
.kpi { display: flex; flex-direction: column; align-items: flex-end; line-height: 1.15; }
.kpi-label { font-size: 10px; text-transform: uppercase; letter-spacing: 0.8px; color: var(--faint); }
.kpi-value { font-size: 14px; color: var(--text); }

.status {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 4px 10px; border-radius: 999px;
  background: var(--surface-2); border: 1px solid var(--border);
  font-size: 11.5px; color: var(--muted);
}
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--faint); }
.status[data-state="live"] .status-dot { background: var(--accent); box-shadow: 0 0 0 0 rgb(61 220 132 / 0.6); animation: pulse 2s infinite; }
.status[data-state="live"] { color: var(--text); }
.status[data-state="connecting"] .status-dot,
.status[data-state="retry"] .status-dot { background: var(--warn); }
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgb(61 220 132 / 0.55); }
  70%  { box-shadow: 0 0 0 6px rgb(61 220 132 / 0); }
  100% { box-shadow: 0 0 0 0 rgb(61 220 132 / 0); }
}

.icon-link { color: var(--muted); display: inline-flex; padding: 4px; border-radius: 6px; }
.icon-link:hover { color: var(--text); }

/* ---------- Layout ---------- */

.layout {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
}

.stage {
  position: relative;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 40%, rgb(61 220 132 / 0.05), transparent 60%),
    var(--bg);
}
#canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
  user-select: none;
  cursor: crosshair;
  image-rendering: pixelated;
}
#canvas.grabbing { cursor: grabbing; }
#canvas:focus-visible { outline-offset: -2px; }

.sidebar {
  border-left: 1px solid var(--border);
  background: var(--surface);
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  scrollbar-width: thin;
  scrollbar-color: var(--surface-3) transparent;
}

/* ---------- Cards ---------- */

.card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  flex-shrink: 0;
}
.card h2 {
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
  margin-bottom: 10px;
}
.h2-sub { text-transform: none; letter-spacing: 0; color: var(--faint); font-weight: 400; margin-left: 4px; }
.card-head { display: flex; justify-content: space-between; align-items: baseline; }
.card-note { font-size: 10.5px; color: var(--faint); }

/* ---------- Población ---------- */

.species-list { list-style: none; display: flex; flex-direction: column; gap: 9px; }
.species-row { display: grid; grid-template-columns: 18px 1fr auto auto; align-items: center; column-gap: 8px; row-gap: 4px; }
.species-row img { width: 18px; height: 18px; }
.species-name { color: var(--text); font-size: 12.5px; }
.species-count { font-size: 14px; text-align: right; min-width: 44px; }
.species-delta { font-size: 10.5px; min-width: 46px; text-align: right; color: var(--faint); }
.species-delta.up { color: var(--accent); }
.species-delta.down { color: var(--danger); }
.species-bar { grid-column: 2 / -1; height: 4px; border-radius: 2px; background: var(--surface-3); overflow: hidden; }
.species-bar > span { display: block; height: 100%; width: 0; border-radius: 2px; transition: width 0.3s ease; }
.species-row.extinct .species-name,
.species-row.extinct .species-count { color: var(--faint); }

.mini-stats { display: flex; gap: 16px; margin-top: 12px; padding-top: 10px; border-top: 1px solid var(--border); color: var(--muted); font-size: 12px; }
.mini-stats strong { color: var(--text); font-weight: 500; margin-left: 4px; }
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 2px; margin-right: 6px; vertical-align: 0; }

/* ---------- Gráfica ---------- */

.chart-wrap { position: relative; }
#pop-chart { display: block; width: 100%; height: 130px; border-radius: 6px; cursor: crosshair; }
.chart-tooltip {
  position: absolute; top: 6px; pointer-events: none;
  background: rgb(11 15 13 / 0.92); border: 1px solid var(--border); border-radius: 6px;
  padding: 6px 8px; font-size: 11px; line-height: 1.5; white-space: nowrap;
}
.chart-tooltip .tt-row { display: flex; align-items: center; gap: 6px; }
.chart-tooltip .tt-row b { font-weight: 500; margin-left: auto; padding-left: 10px; }
.chart-legend { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.legend-btn {
  display: inline-flex; align-items: center; gap: 6px;
  background: transparent; border: 1px solid var(--border); border-radius: 999px;
  padding: 2px 9px; font-size: 11px; color: var(--muted); cursor: pointer;
}
.legend-btn i { width: 10px; height: 3px; border-radius: 2px; }
.legend-btn[aria-pressed="false"] { opacity: 0.4; }
.legend-btn:hover { color: var(--text); }

/* ---------- Ambiente ---------- */

.env-row { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 8px; }
.season { font-size: 14px; font-weight: 550; }
.gauge {
  position: relative; height: 6px; border-radius: 3px;
  background: linear-gradient(90deg, #4f8cff 0%, #7fd3c4 35%, #9ad66b 50%, #f2c14e 70%, #ff6b4a 100%);
}
.gauge-marker {
  position: absolute; top: 50%; left: 50%;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--text); border: 2px solid var(--surface-2);
  transform: translate(-50%, -50%);
  transition: left 0.3s ease;
}
.gauge-labels { display: flex; justify-content: space-between; font-size: 10px; color: var(--faint); margin-top: 4px; }
.countdowns { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 12px; }
.countdowns div { background: var(--surface-3); border-radius: 7px; padding: 7px 9px; }
.countdowns dt { font-size: 10.5px; color: var(--muted); }
.countdowns dd { font-size: 13px; }

/* ---------- Capas ---------- */

.toggles { display: flex; flex-direction: column; gap: 6px; }
.toggle { display: flex; align-items: center; gap: 8px; cursor: pointer; color: var(--text); font-size: 12.5px; }
.toggle input { accent-color: var(--accent); width: 14px; height: 14px; }
.toggle-meta { margin-left: auto; font-size: 10.5px; color: var(--faint); }
.biome-legend { display: grid; grid-template-columns: repeat(2, 1fr); gap: 5px 10px; margin-top: 12px; padding-top: 10px; border-top: 1px solid var(--border); font-size: 11.5px; color: var(--muted); }
.biome-legend span { display: flex; align-items: center; }

/* ---------- Evolución ---------- */

.evo-table { width: 100%; border-collapse: collapse; font-size: 11.5px; }
.evo-table th { font-weight: 500; font-size: 10.5px; padding: 0 0 6px; text-align: right; }
.evo-table th:first-child, .evo-table td:first-child { text-align: left; color: var(--muted); }
.evo-table td { padding: 3px 0; text-align: right; border-top: 1px solid var(--border); }
.evo-table td:first-child { cursor: help; }

/* ---------- Eventos ---------- */

.event-log { list-style: none; display: flex; flex-direction: column; gap: 2px; max-height: 190px; overflow-y: auto; }
.event-log li.empty { color: var(--faint); font-size: 12px; }
.event-item {
  display: grid; grid-template-columns: 18px 1fr auto; gap: 8px; align-items: center;
  width: 100%; text-align: left; background: transparent; border: 0; border-radius: 6px;
  padding: 5px 6px; cursor: pointer; font-size: 12px; color: var(--text);
}
.event-item:hover { background: var(--surface-3); }
.event-item .ev-tick { font-size: 10.5px; color: var(--faint); }

/* ---------- Acerca de ---------- */

.about summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; }
.about summary::-webkit-details-marker { display: none; }
.about summary h2 { margin: 0; }
.about summary::after { content: "+"; color: var(--muted); font-size: 16px; line-height: 1; }
.about[open] summary::after { content: "−"; }
.about[open] summary { margin-bottom: 10px; }
.about p { color: var(--muted); font-size: 12px; margin-bottom: 10px; }
.changelog { font-size: 12px; color: var(--muted); }
.changelog h3 { font-size: 12px; color: var(--text); margin: 14px 0 6px; }
.changelog ul { padding-left: 16px; display: flex; flex-direction: column; gap: 6px; }
.changelog strong { color: var(--text); font-weight: 550; }
.changelog code { font-family: var(--mono); font-size: 11px; background: var(--surface-3); padding: 0 4px; border-radius: 4px; }

/* ---------- Overlays del mapa ---------- */

.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; border-radius: 7px;
  background: transparent; border: 0; color: var(--muted); cursor: pointer;
  font-size: 17px; line-height: 1;
}
.icon-btn:hover { background: var(--surface-3); color: var(--text); }

.map-controls {
  position: absolute; right: 14px; bottom: 14px;
  display: flex; gap: 8px; align-items: center;
}
.zoom-group, .segmented {
  display: flex; padding: 3px; gap: 2px;
  background: rgb(18 24 21 / 0.88); backdrop-filter: blur(8px);
  border: 1px solid var(--border); border-radius: 10px;
  box-shadow: 0 6px 20px rgb(0 0 0 / 0.35);
}
.seg-btn {
  background: transparent; border: 0; border-radius: 7px; cursor: pointer;
  padding: 6px 11px; font-size: 12px; color: var(--muted);
}
.seg-btn:hover { color: var(--text); }
.seg-btn.active { background: var(--surface-3); color: var(--text); }

.map-hint {
  position: absolute; left: 14px; bottom: 18px;
  font-size: 11.5px; color: var(--muted);
  background: rgb(18 24 21 / 0.8); border: 1px solid var(--border);
  padding: 5px 10px; border-radius: 999px;
  pointer-events: none; transition: opacity 0.6s ease;
}
.map-hint.hidden { opacity: 0; }

.inspector {
  position: absolute; top: 14px; left: 14px;
  width: 250px;
  background: rgb(24 32 28 / 0.94); backdrop-filter: blur(10px);
  box-shadow: 0 10px 30px rgb(0 0 0 / 0.45);
  z-index: 5;
}
.inspector-header { display: flex; align-items: center; gap: 9px; margin: -4px -6px 10px 0; }
.inspector-header > div { flex: 1; min-width: 0; }
.inspector-title { font-weight: 600; font-size: 13.5px; }
.inspector-sub { font-size: 10.5px; color: var(--faint); }
.insp-section { font-size: 10px; text-transform: uppercase; letter-spacing: 0.8px; color: var(--faint); margin: 10px 0 5px; }
.insp-row { display: flex; justify-content: space-between; gap: 8px; font-size: 12px; padding: 1.5px 0; }
.insp-row > span:first-child { color: var(--muted); }
.insp-bar { height: 4px; border-radius: 2px; background: var(--surface-3); overflow: hidden; margin: 2px 0 6px; }
.insp-bar > span { display: block; height: 100%; border-radius: 2px; }
.insp-empty { color: var(--muted); font-size: 12px; }

.toast-region {
  position: absolute; top: 14px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; gap: 6px; align-items: center;
  pointer-events: none; z-index: 6;
}
.toast {
  background: rgb(24 32 28 / 0.95); border: 1px solid var(--border);
  border-radius: 999px; padding: 6px 14px; font-size: 12px;
  box-shadow: 0 6px 20px rgb(0 0 0 / 0.4);
  animation: toast-in 0.25s ease, toast-out 0.4s ease 3.6s forwards;
}
@keyframes toast-in  { from { opacity: 0; transform: translateY(-6px); } }
@keyframes toast-out { to   { opacity: 0; transform: translateY(-6px); } }

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

/* ---------- Responsive ---------- */

@media (max-width: 860px) {
  .hide-sm { display: none; }
  /* el mapa es cuadrado: alto ≈ ancho + espacio para los controles */
  .layout { grid-template-columns: 1fr; grid-template-rows: min(64vh, calc(100vw + 58px)) auto; overflow-y: auto; }
  .stage { min-height: 300px; }
  #canvas { height: calc(100% - 58px); }
  .sidebar { border-left: 0; border-top: 1px solid var(--border); overflow: visible; }
  .inspector { width: auto; right: 14px; }
  .map-hint { display: none; }
}
@media (max-width: 480px) {
  .topbar { padding: 8px 12px; }
  .tagline { display: none; }
  .topbar-stats { gap: 12px; }
  .seg-btn { padding: 6px 8px; }
}