/*
 * Variante visual sobria basada en Pico CSS.
 * La antigua propuesta de pizarra se conserva en estilos.css por si se quiere
 * recuperar; index.html carga este archivo después de Pico para personalizarlo.
 */
:root {
  --pico-font-family-sans-serif: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --pico-font-size: 100%;
  --pico-line-height: 1.5;
  --pico-border-radius: 0.4rem;
  --pico-background-color: #f7f8f7;
  --pico-color: #202521;
  --pico-muted-color: #68726a;
  --pico-primary: #176b45;
  --pico-primary-background: #176b45;
  --pico-primary-border: #176b45;
  --pico-primary-hover: #105336;
  --pico-primary-hover-background: #105336;
  --pico-primary-hover-border: #105336;
  --pico-primary-focus: rgba(23, 107, 69, 0.22);
  --pico-form-element-border-color: #cbd2cc;
  --pico-form-element-focus-color: rgba(23, 107, 69, 0.2);

  --fondo: #f7f8f7;
  --superficie: #ffffff;
  --linea: #dbe1dc;
  --texto-tenue: #68726a;
  --resaltado: #176b45;
  --resaltado-suave: #eaf3ed;
  --codigo-fondo: #f1f3f1;
  --error: #a73d2b;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--fondo);
  color: var(--pico-color);
}

header {
  position: relative;
  padding: 2rem 1.5rem;
  background: var(--superficie);
  border-bottom: 1px solid var(--linea);
}

.selector-estilo {
  position: absolute;
  top: 1.25rem;
  right: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--texto-tenue);
  font-size: 0.8rem;
}

.selector-estilo label {
  margin: 0;
  font-weight: 600;
}

.selector-estilo select {
  width: auto;
  min-width: 7.5rem;
  height: 2.25rem;
  margin: 0;
  padding: 0.25rem 2rem 0.25rem 0.6rem;
  border-color: #bfc9c1;
  background-color: #fff;
  font-size: 0.85rem;
}

.eyebrow {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--resaltado);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 0.6rem;
  color: #18201a;
  font-size: clamp(2rem, 4vw, 2.8rem);
  letter-spacing: -0.025em;
}

header p {
  max-width: 68ch;
  margin: 0;
  color: var(--texto-tenue);
}

main {
  width: calc(100% - 3rem);
  margin: 1.5rem auto 3rem;
}

.panel {
  margin-bottom: 1.25rem;
  padding: 1.25rem;
  background: var(--superficie);
  border: 1px solid var(--linea);
  border-radius: var(--pico-border-radius);
  box-shadow: none;
}

.panel-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 1rem;
  color: #29312b;
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.panel-title .num {
  display: inline-grid;
  width: 1.5rem;
  height: 1.5rem;
  place-items: center;
  border: 1px solid #b8c4bb;
  border-radius: 50%;
  color: var(--resaltado);
  font-size: 0.78rem;
}

#resumenCapitulo {
  color: var(--texto-tenue) !important;
}

button.bloque-btn {
  width: auto;
  min-height: 2.5rem;
  margin: 0;
  padding: 0.55rem 0.8rem;
  border: 1px solid #bfc9c1;
  border-radius: var(--pico-border-radius);
  background: #fff;
  color: #263129;
  box-shadow: none;
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1.25;
  text-align: left;
}

button.bloque-btn:hover {
  border-color: #8da293;
  background: #f5f7f5;
  box-shadow: none;
}

button.bloque-btn:active {
  transform: none;
  box-shadow: none;
}

button.bloque-btn:focus-visible,
.explicacion-toggle:focus-visible {
  outline: 3px solid rgba(23, 107, 69, 0.3);
  outline-offset: 2px;
}

button.bloque-btn.principal {
  padding-inline: 1rem;
  border-color: var(--resaltado);
  background: var(--resaltado);
  color: #fff;
}

button.bloque-btn.principal:hover {
  border-color: #105336;
  background: #105336;
}

button.bloque-btn.suave {
  background: #fff;
  color: #263129;
}

button.bloque-btn.acento,
button.bloque-btn[data-active="true"] {
  border-color: var(--resaltado);
  background: var(--resaltado-suave);
  color: #105336;
  outline: none;
}

button.bloque-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.bloque-btn small {
  display: block;
  margin-top: 0.25rem;
  color: var(--texto-tenue);
  font-size: 0.75rem;
  font-weight: 400;
}

.temario-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 0.75rem;
}

.tema-btn {
  min-height: 4.75rem !important;
}

.subnav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
  margin-top: 1.25rem;
}

.subnav-grupo h4,
.sub-label {
  margin: 0 0 0.5rem;
  color: var(--texto-tenue);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.subnav-lista {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.subnav-lista .bloque-btn {
  width: 100%;
}

.info-contenido {
  margin-bottom: 1rem;
  padding: 0.9rem 1rem;
  border-left: 3px solid #91a796;
  border-radius: 0;
  background: #f5f7f5;
  font-size: 0.95rem;
}

.info-contenido.test {
  border-left-color: var(--resaltado);
  background: var(--resaltado-suave);
}

.badge-tipo {
  display: inline-block;
  margin-bottom: 0.25rem;
  color: #536157;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.badge-tipo.test {
  color: #105336;
}

.explicacion-toggle {
  margin-top: 0.65rem;
  padding: 0;
  border: 0;
  background: transparent;
  color: #105336;
  font: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: underline;
}

.explicacion-caja {
  display: none;
  margin-top: 0.75rem;
  padding: 0.75rem;
  border: 1px solid #bdcfbf;
  border-radius: var(--pico-border-radius);
  background: #fff;
  font-size: 0.9rem;
}

.explicacion-caja.visible {
  display: block;
}

#blocklyDiv {
  width: 100%;
  height: 460px;
  border: 1px solid #bfc9c1;
  border-radius: var(--pico-border-radius);
  background: #fff;
}

.trabajo-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(18rem, 1fr);
  gap: 1.25rem;
  align-items: start;
  margin-bottom: 1.25rem;
}

.trabajo-grid > .panel {
  margin-bottom: 0;
}

.controles-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem;
  margin-top: 1rem;
}

.controles-row .spacer {
  flex: 1;
}

.hint {
  color: var(--texto-tenue);
  font-size: 0.8rem;
}

.salida-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.consola,
.codigo {
  min-height: 10rem;
  max-height: 16.25rem;
  overflow: auto;
  padding: 0.85rem;
  border: 1px solid #d7ddd8;
  border-radius: var(--pico-border-radius);
  background: var(--codigo-fondo);
  color: #27302a;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.84rem;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
}

.codigo .py-comentario {
  color: #6d786f;
  font-style: italic;
}

.codigo .py-palabra {
  color: #7a3e9d;
  font-weight: 600;
}

.codigo .py-funcion {
  color: #075f84;
}

.codigo .py-cadena {
  color: #a14b13;
}

.codigo .py-numero {
  color: #8c5a00;
}

.consola .linea-error {
  color: var(--error);
}

.consola .vacio {
  color: var(--texto-tenue);
  font-style: italic;
}

.veredicto {
  margin-top: 0.75rem;
  padding: 0.75rem 0.85rem;
  border: 1px solid;
  border-radius: var(--pico-border-radius);
  font-size: 0.9rem;
  font-weight: 600;
}

.veredicto.correcto {
  border-color: #9bc9aa;
  background: #edf8f0;
  color: #155d30;
}

.veredicto.incorrecto {
  border-color: #e1ada4;
  background: #fff3f1;
  color: #923525;
}

.panel-profesor {
  background: #fafbfa;
}

.panel-profesor p {
  margin: 0.5rem 0;
  color: #505a52;
  font-size: 0.9rem;
}

.panel-profesor code {
  padding: 0.1rem 0.25rem;
  border-radius: 0.2rem;
  background: #edf0ed;
  color: inherit;
}

.panel-profesor textarea {
  width: 100%;
  min-height: 10rem;
  margin-top: 0.75rem;
  padding: 0.75rem;
  border: 1px solid #bfc9c1;
  border-radius: var(--pico-border-radius);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.8rem;
}

footer {
  width: calc(100% - 3rem);
  margin: 0 auto;
  padding: 0 0 2.5rem;
  color: var(--texto-tenue);
  font-size: 0.8rem;
}

@media (max-width: 1000px) {
  .trabajo-grid {
    grid-template-columns: 1fr;
  }

  .trabajo-grid > .panel {
    margin-bottom: 1.25rem;
  }

  .trabajo-grid > .panel:last-child {
    margin-bottom: 0;
  }

  .salida-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 700px) {
  header {
    padding-block: 1.5rem;
  }

  .selector-estilo {
    position: static;
    justify-content: flex-end;
    margin-bottom: 1.25rem;
  }

  main {
    width: min(100% - 1.5rem, 70rem);
    margin-top: 1rem;
  }

  .panel {
    padding: 1rem;
  }

  .subnav,
  .salida-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  #blocklyDiv {
    height: 400px;
  }

  .controles-row .spacer {
    display: none;
  }

  .hint {
    width: 100%;
  }

  footer {
    width: min(100% - 1.5rem, 70rem);
  }
}