/* Demo del motor de Emergent Societies. Estilo «cuaderno de investigación» de heuretika
   (heuretika-website/dev-docs/diseno.md): papel, tinta, filetes; sin degradados ni sombras;
   Literata como voz, Inter para la interfaz, JetBrains Mono para código. El acento es el violeta
   del producto (#7d6bb5); en texto se usa un tono más oscuro (claro) o más claro (oscuro) para
   pasar AA. Las tipografías van auto-hospedadas (fonts/): la página no llama a ningún tercero. */

@font-face {
  font-family: "Literata";
  src: url("fonts/literata-latin-wght-normal.woff2") format("woff2");
  font-weight: 200 900;
  font-display: swap;
}
@font-face {
  font-family: "Inter";
  src: url("fonts/inter-latin-wght-normal.woff2") format("woff2");
  font-weight: 100 900;
  font-display: swap;
}
@font-face {
  font-family: "JetBrains Mono";
  src: url("fonts/jetbrains-mono-latin-wght-normal.woff2") format("woff2");
  font-weight: 100 800;
  font-display: swap;
}

:root {
  color-scheme: light dark;
  --paper: #f9f8f4;
  --paper-2: #f1efe8;
  --ink: #1e1c19;
  --ink-2: #57534c;
  --graphite: #8a857b;
  --rule: #dcd8ce;
  --accent: #7d6bb5; /* gráficos */
  --accent-ink: #6a58a3; /* texto y botones (AA sobre papel) */
  --accent-on: #ffffff;
  --serif: "Literata", Georgia, "Times New Roman", serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #171614;
    --paper-2: #1f1d1a;
    --ink: #ece8df;
    --ink-2: #b4afa5;
    --graphite: #807b71;
    --rule: #35322d;
    --accent: #a597d4;
    --accent-ink: #a597d4;
    --accent-on: #171614;
  }
}

* {
  box-sizing: border-box;
}

html {
  background: var(--paper);
  color: var(--ink);
}

body {
  margin: 0;
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.62;
}

a {
  color: var(--accent-ink);
}

:focus-visible {
  outline: 2px solid var(--accent-ink);
  outline-offset: 2px;
}

.skip {
  position: absolute;
  left: -999px;
}
.skip:focus {
  left: 1rem;
  top: 1rem;
  background: var(--paper);
  padding: 0.25rem 0.5rem;
}

main {
  max-width: 62rem;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}

header {
  max-width: 40rem;
  margin-bottom: 2.5rem;
}

h1,
h2 {
  font-weight: 600;
  line-height: 1.2;
  margin: 0 0 0.6rem;
}
h1 {
  font-size: 2.1rem;
}
h2 {
  font-size: 1.45rem;
}

p {
  margin: 0 0 1rem;
}

.badge {
  display: inline-block;
  font: 500 0.75rem/1 var(--sans);
  letter-spacing: 0.01em;
  color: var(--accent-ink);
  border: 1px solid var(--accent-ink);
  border-radius: 3px;
  padding: 0.3rem 0.5rem;
  margin-bottom: 1rem;
}

.rule {
  border-left: 3px solid var(--accent);
  padding: 0.1rem 0 0.1rem 1rem;
  font-style: italic;
  margin: 1.4rem 0 0;
}

section {
  border-top: 1px solid var(--rule);
  padding-top: 1.75rem;
  margin-top: 2.5rem;
}
section > p {
  max-width: 40rem;
}

.demo {
  display: grid;
  grid-template-columns: minmax(0, 17rem) minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
}
@media (max-width: 52rem) {
  .demo {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* Controles: filas con filetes, no tarjetas. */
.controls {
  font-family: var(--sans);
  font-size: 0.875rem;
}
.controls .row {
  display: grid;
  gap: 0.3rem;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--rule);
}
.controls label,
.controls legend {
  color: var(--ink-2);
  font-size: 0.8rem;
}
.controls .val {
  font-family: var(--mono);
  color: var(--ink);
  float: right;
}
.controls fieldset {
  border: 0;
  padding: 0;
  margin: 0;
}
input[type="range"] {
  width: 100%;
  accent-color: var(--accent-ink);
}
input[type="number"] {
  width: 100%;
  font: 0.875rem var(--mono);
  color: var(--ink);
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-radius: 3px;
  padding: 0.35rem 0.5rem;
}
.seedrow {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.5rem;
}

button {
  font: 500 0.85rem var(--sans);
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--graphite);
  border-radius: 3px;
  padding: 0.4rem 0.75rem;
  cursor: pointer;
}
button:hover:not(:disabled) {
  border-color: var(--ink);
}
button.primary {
  color: var(--accent-on);
  background: var(--accent-ink);
  border-color: var(--accent-ink);
}
button:disabled {
  opacity: 0.5;
  cursor: default;
}
.buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding-top: 0.75rem;
}

.metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
  font: 0.8rem var(--mono);
  color: var(--ink-2);
  margin: 0 0 0.5rem;
}
.metrics b {
  color: var(--ink);
  font-weight: 500;
}
.status {
  font: 0.8rem var(--sans);
  color: var(--ink-2);
  min-height: 1.3em;
}

figure {
  margin: 0;
}
figcaption {
  font: 0.8rem/1.45 var(--sans);
  color: var(--ink-2);
  margin-top: 0.5rem;
  max-width: 44rem;
}
.plots {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 1rem;
}

/* Gráficas SVG: filetes y tinta; un solo color de dato. */
svg.plot {
  width: 100%;
  height: auto;
  display: block;
  background: var(--paper);
}
svg.plot text {
  font: 10px var(--mono);
  fill: var(--ink-2);
}
svg.plot .grid {
  stroke: var(--rule);
  stroke-width: 1;
}
svg.plot .axis {
  stroke: var(--graphite);
  stroke-width: 1;
}
svg.plot .bar {
  fill: var(--accent);
}
svg.plot .line {
  fill: none;
  stroke: var(--accent);
  stroke-width: 2;
}
svg.plot .thin {
  fill: none;
  stroke: var(--graphite);
  stroke-width: 1;
  opacity: 0.55;
}
svg.plot .band {
  fill: var(--accent);
  opacity: 0.2;
}
svg.plot .median {
  fill: none;
  stroke: var(--ink);
  stroke-width: 1.5;
  stroke-dasharray: 4 3;
}

canvas#sch-canvas {
  width: 100%;
  max-width: 24rem;
  aspect-ratio: 1;
  display: block;
  border: 1px solid var(--rule);
  background: var(--paper-2);
  image-rendering: pixelated;
}

.rep-result {
  font: 0.9rem/1.5 var(--sans);
  max-width: 44rem;
}
.rep-result strong {
  font-weight: 600;
}

footer {
  border-top: 1px solid var(--rule);
  margin-top: 3rem;
  padding-top: 1rem;
  font: 0.8rem/1.5 var(--sans);
  color: var(--ink-2);
  max-width: 44rem;
}

.lang {
  font: 0.8rem var(--sans);
  float: right;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

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