/* ============================================================
 * theme.css — TEMA fotosíntesis (capa LIBRE).
 * Prefijo: "fot-". NO redefine clases guia-* (andamiaje bloqueado).
 * Variables de marca: var(--guia-ink/orange/navy/green/deep/cream/line/muted).
 * Pisos de letra: lectura ≥17px · apoyo ≥15px · etiquetas MAYÚS ≥13px.
 * Sin hex de marca. Sin canvas. Sin var(--..) dentro de fill/stroke en SVG inline.
 * ============================================================ */

/* ===== Paleta semántica del tema (constantes CSS, NO variables --guia-*) ===== */
/* Los widgets JS leen estas como var() en el host; los SVG inline usan strings. */

/* ---- Callout mito vs realidad (M5) ---- */
.fot-mito-bloque {
  border-left: 4px solid var(--guia-orange);
  background: var(--guia-cream);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  margin: .75rem 0;
  font-size: 1.0625rem; /* 17px */
  line-height: 1.55;
}

.fot-mito-label {
  font-weight: 800;
  font-size: 0.8125rem; /* 13px */
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--guia-orange);
  margin: 0 0 .25rem;
}

.fot-real-label {
  font-weight: 800;
  font-size: 0.8125rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--guia-green);
  margin: .75rem 0 .25rem;
}

/* ---- Widget: diagrama de flujo estático (M1, M3) ---- */
.fot-flujo {
  display: flex;
  align-items: center;
  gap: .5rem;
  flex-wrap: wrap;
  justify-content: center;
  margin: 1rem 0;
}

.fot-flujo-entradas {
  display: flex;
  flex-direction: column;
  gap: .5rem;
}

.fot-flujo-salidas {
  display: flex;
  flex-direction: column;
  gap: .5rem;
}

.fot-flujo-nodo {
  display: flex;
  align-items: center;
  gap: .4rem;
  padding: .45rem .85rem;
  border-radius: 8px;
  font-size: 1.0625rem; /* 17px */
  font-weight: 700;
  line-height: 1.25;
  min-width: 0;
}

.fot-flujo-nodo sub {
  font-size: 0.9375rem; /* 15px */
  font-weight: 400;
  display: block;
}

.fot-flujo-nodo.entrada {
  background: color-mix(in srgb, var(--guia-navy) 12%, transparent);
  color: var(--guia-navy);
  border: 1.5px solid color-mix(in srgb, var(--guia-navy) 30%, transparent);
}

.fot-flujo-nodo.fabrica {
  background: var(--guia-green);
  color: #fff;
  border-radius: 12px;
  padding: .65rem 1.1rem;
  font-size: 1.0625rem;
  text-align: center;
  min-width: 100px;
}

.fot-flujo-nodo.salida {
  background: color-mix(in srgb, var(--guia-green) 12%, transparent);
  color: var(--guia-green);
  border: 1.5px solid color-mix(in srgb, var(--guia-green) 30%, transparent);
}

.fot-flujo-flecha {
  font-size: 1.5rem;
  color: var(--guia-muted);
  flex-shrink: 0;
}

/* ---- Widget: clasificar ENTRA/SALE (M3) ---- */
.fot-clasificar {
  margin: 1rem 0;
}

.fot-tarjetas {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  justify-content: center;
  margin-bottom: .875rem;
}

.fot-tarjeta {
  padding: .5rem 1rem;
  border-radius: 8px;
  font-size: 1.0625rem; /* 17px */
  font-weight: 700;
  cursor: pointer;
  border: 2px solid var(--guia-line);
  background: var(--guia-cream);
  color: var(--guia-ink);
  transition: transform .12s, box-shadow .12s;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}

.fot-tarjeta:active {
  transform: scale(.96);
}

.fot-tarjeta.seleccionada {
  border-color: var(--guia-orange);
  background: color-mix(in srgb, var(--guia-orange) 10%, transparent);
}

.fot-tarjeta.correcta {
  border-color: var(--guia-green);
  background: color-mix(in srgb, var(--guia-green) 12%, transparent);
  color: var(--guia-green);
}

.fot-tarjeta.incorrecta {
  border-color: var(--guia-orange);
  background: color-mix(in srgb, var(--guia-orange) 10%, transparent);
}

.fot-cubos {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.fot-cubo {
  flex: 1 1 140px;
  min-height: 80px;
  border-radius: 10px;
  border: 2px dashed var(--guia-line);
  padding: .75rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .35rem;
  cursor: pointer;
  transition: border-color .15s;
}

.fot-cubo:active,
.fot-cubo.activo {
  border-color: var(--guia-orange);
}

.fot-cubo-label {
  font-size: 0.8125rem; /* 13px */
  text-transform: uppercase;
  letter-spacing: .07em;
  font-weight: 700;
  color: var(--guia-muted);
}

.fot-cubo-items {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
  justify-content: center;
}

/* ---- Widget: cloroplasto interactivo (M2) ---- */
.fot-cloroplasto-wrap {
  position: relative;
  max-width: 480px;
  margin: 0 auto 1rem;
}

.fot-cloroplasto-wrap svg {
  width: 100%;
  height: auto;
  display: block;
}

.fot-estructura-panel {
  background: var(--guia-cream);
  border: 1.5px solid var(--guia-line);
  border-radius: 10px;
  padding: .75rem 1rem;
  margin-top: .5rem;
  font-size: 1.0625rem; /* 17px */
  line-height: 1.5;
  min-height: 72px;
}

.fot-estructura-panel .fot-panel-nombre {
  font-weight: 800;
  font-size: 1.0625rem;
  color: var(--guia-navy);
  margin-bottom: .3rem;
}

.fot-zona-tap {
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  outline: none;
}

.fot-zona-tap:focus-visible {
  outline: 2px solid var(--guia-orange);
  outline-offset: 2px;
}

/* ---- Capa activa del cloroplasto (M4, M5) ---- */
.fot-capa-nota {
  background: color-mix(in srgb, var(--guia-navy) 8%, transparent);
  border-left: 4px solid var(--guia-navy);
  border-radius: 6px;
  padding: .6rem .9rem;
  font-size: 0.9375rem; /* 15px */
  color: var(--guia-ink);
  margin: .75rem 0;
}

.fot-capa-nota.luminosa {
  border-color: var(--guia-orange);
  background: color-mix(in srgb, var(--guia-orange) 8%, transparent);
}

.fot-capa-nota.oscura {
  border-color: var(--guia-navy);
  background: color-mix(in srgb, var(--guia-navy) 8%, transparent);
}

/* ---- Widget: espectro de absorción (M6) ---- */
.fot-espectro {
  margin: 1rem 0;
}

.fot-bandas {
  display: flex;
  border-radius: 10px;
  overflow: hidden;
  height: 52px;
  cursor: pointer;
}

.fot-banda {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: flex .2s, filter .15s;
  position: relative;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.fot-banda:focus-visible {
  outline: 2px solid var(--guia-orange);
  outline-offset: 2px;
}

.fot-banda-label {
  font-size: 0.8125rem; /* 13px */
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: #fff;
  text-shadow: 0 1px 2px rgba(0,0,0,.45);
  pointer-events: none;
}

.fot-banda.activa {
  flex: 2.5;
  filter: brightness(1.1) saturate(1.15);
}

.fot-espectro-info {
  min-height: 80px;
  padding: .65rem .9rem;
  background: var(--guia-cream);
  border: 1.5px solid var(--guia-line);
  border-radius: 10px;
  margin-top: .5rem;
  font-size: 1.0625rem; /* 17px */
  line-height: 1.5;
}

.fot-espectro-info .fot-estado-tag {
  display: inline-block;
  font-size: 0.8125rem; /* 13px */
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .07em;
  padding: .2rem .55rem;
  border-radius: 4px;
  margin-bottom: .4rem;
}

.fot-estado-tag.absorbe {
  background: color-mix(in srgb, var(--guia-green) 15%, transparent);
  color: var(--guia-green);
}

.fot-estado-tag.refleja {
  background: color-mix(in srgb, var(--guia-orange) 15%, transparent);
  color: var(--guia-orange);
}

/* ---- Widget: ciclo bidireccional estático (M7) ---- */
.fot-ciclo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
  margin: 1rem 0;
}

.fot-ciclo-wrap {
  width: 100%;
  max-width: 400px;
}

.fot-ciclo-wrap svg {
  width: 100%;
  height: auto;
  display: block;
}

.fot-ciclo-nota {
  font-size: 0.9375rem; /* 15px */
  color: var(--guia-muted);
  text-align: center;
  font-style: italic;
  margin-top: .4rem;
}

/* ---- Widget: simulador de tasa fotosintética (M8) ---- */
.fot-simulador {
  margin: 1rem 0;
}

.fot-sliders {
  display: flex;
  flex-direction: column;
  gap: .85rem;
  margin-bottom: 1rem;
}

.fot-slider-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: .4rem .6rem;
  align-items: center;
}

.fot-slider-label {
  font-size: 1.0625rem; /* 17px */
  font-weight: 600;
  color: var(--guia-ink);
  grid-column: 1 / -1;
}

.fot-slider-row input[type="range"] {
  grid-column: 1;
  accent-color: var(--guia-navy);
  width: 100%;
  cursor: pointer;
}

.fot-slider-val {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--guia-navy);
  white-space: nowrap;
  min-width: 4ch;
  text-align: right;
}

/* Burbujas de O₂ */
.fot-burbuja-zona {
  position: relative;
  height: 64px;
  background: color-mix(in srgb, var(--guia-navy) 6%, transparent);
  border-radius: 10px;
  overflow: hidden;
  border: 1.5px solid var(--guia-line);
  margin-bottom: .75rem;
}

.fot-burbuja {
  position: absolute;
  bottom: 0;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: rgba(255,255,255,.8);
  border: 1.5px solid color-mix(in srgb, var(--guia-navy) 50%, transparent);
  animation: fot-sube var(--dur, 2s) linear infinite;
}

@keyframes fot-sube {
  from { bottom: 0; opacity: .9; }
  to   { bottom: 100%; opacity: 0; }
}

.fot-factor-tag {
  display: inline-block;
  padding: .35rem .7rem;
  border-radius: 6px;
  font-size: 0.9375rem; /* 15px */
  font-weight: 700;
  background: color-mix(in srgb, var(--guia-orange) 12%, transparent);
  color: var(--guia-orange);
  border: 1.5px solid color-mix(in srgb, var(--guia-orange) 30%, transparent);
}

.fot-factor-tag.ninguno {
  background: color-mix(in srgb, var(--guia-green) 12%, transparent);
  color: var(--guia-green);
  border-color: color-mix(in srgb, var(--guia-green) 30%, transparent);
}

/* ---- Responsive ---- */
@media (max-width: 540px) {
  .fot-cubos { flex-direction: column; }
  .fot-cubo  { min-height: 60px; }
  .fot-flujo { gap: .35rem; }
  .fot-bandas { height: 44px; }
}

@media print {
  .fot-clasificar,
  .fot-cloroplasto-wrap,
  .fot-espectro,
  .fot-simulador { display: none !important; }
}