/* Componentes de FurbyBoard por dentro. Los colores salen siempre de los tokens de index.html */

/* ---------- Barra de la fuente de banco ---------- */
.fb .marca__por { color: var(--cobre-claro); }
.fb .fuente { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 16px; }
.fb .banco__acciones { display: flex; gap: 8px; flex-wrap: wrap; }
.fb .lecturas-banco { display: flex; gap: 6px; margin: 0; }
.fb .lecturas-banco div {
  background: #07120c; color: #9ff0b8; border: 1px solid rgba(255,255,255,0.12);
  border-radius: 4px; padding: 2px 8px 3px; min-width: 74px;
}
.fb .lecturas-banco dt { font-family: var(--f-titulo); font-size: 0.68rem; letter-spacing: 0.08em; color: #cfe3d6; opacity: 0.85; line-height: 1.1; }
.fb .lecturas-banco dd { margin: 0; font-size: 0.9rem; font-weight: 600; line-height: 1.2; }
.fb .lecturas-banco .apagado { color: #4d6a58; }
@media (max-width: 700px) {
  .fb .marca h1 { font-size: 1.3rem; }
  .fb .marca small { display: none; }
  .fb .lecturas-banco div { min-width: 64px; padding-inline: 6px; }
  .fb .banco__acciones .boton span { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .fb .banco__acciones .boton { min-width: 40px; justify-content: center; }
}

/* ---------- Botones ---------- */
.fb .boton {
  font: inherit; font-size: 0.9rem; font-weight: 700;
  display: inline-flex; align-items: center; gap: 6px;
  min-height: 36px; padding: 6px 12px;
  border-radius: var(--radio); cursor: pointer;
  background: var(--superficie); color: var(--tinta);
  border: 1px solid var(--borde-fuerte);
  box-shadow: 0 2px 0 var(--borde);
  transition: transform 0.06s, background-color 0.15s;
}
.fb .boton:hover { background: var(--superficie-2); }
.fb .boton:active { transform: translateY(1px); box-shadow: 0 1px 0 var(--borde); }
.fb .boton[aria-pressed="true"] { background: var(--mascara); color: var(--serigrafia); border-color: var(--mascara-oscura); }
.fb .boton--primario { background: var(--cobre); border-color: var(--cobre); color: #fff; box-shadow: 0 2px 0 rgba(0,0,0,0.25); }
.fb .boton--primario:hover { background: var(--cobre-claro); }
.fb .boton--peligro { border-color: var(--fallo); color: var(--fallo); }
.fb .boton--peligro[aria-pressed="true"] { background: var(--fallo); color: #fff; border-color: var(--fallo); }
.fb .boton--banco { background: rgba(255,255,255,0.08); color: var(--serigrafia); border-color: rgba(255,255,255,0.25); box-shadow: none; }
.fb .boton--banco:hover { background: rgba(255,255,255,0.16); }
.fb .boton--banco[aria-pressed="true"] { background: var(--cobre); border-color: var(--cobre); color: #fff; }
.fb .boton .ico-play { display: none; }
.fb .boton[aria-pressed="true"] .ico-play { display: inline; }
.fb .boton[aria-pressed="true"] .ico-pausa { display: none; }
.fb .boton--mini { min-height: 30px; padding: 3px 9px; font-size: 0.82rem; }
.fb .boton:disabled { opacity: 0.45; cursor: not-allowed; }

/* ---------- Interruptor (checkbox con role=switch) ---------- */
.fb .interruptor { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; font-weight: 700; font-size: 0.92rem; min-height: 36px; position: relative; user-select: none; }
.fb .interruptor input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.fb .interruptor__pista {
  width: 42px; height: 22px; border-radius: 4px; flex: none; position: relative;
  background: var(--superficie-3); border: 1px solid var(--borde-fuerte);
  transition: background-color 0.15s;
}
.fb .interruptor__pista::after {
  content: ""; position: absolute; top: 2px; left: 2px; width: 16px; height: 16px; border-radius: 2px;
  background: var(--tinta-suave); transition: transform 0.15s, background-color 0.15s;
}
.fb .interruptor input:checked + .interruptor__pista { background: var(--ok); border-color: var(--ok); }
.fb .interruptor input:checked + .interruptor__pista::after { transform: translateX(20px); background: #fff; }
.fb .interruptor input:focus-visible + .interruptor__pista { outline: 3px solid var(--foco); outline-offset: 2px; }
.fb .interruptor--banco .interruptor__pista { background: rgba(0,0,0,0.3); border-color: rgba(255,255,255,0.35); }
.fb .interruptor--banco .interruptor__pista::after { background: #cfe3d6; }
.fb .interruptor--banco input:checked + .interruptor__pista { background: var(--r-vbus); border-color: var(--r-vbus); }
.fb .interruptor__estado { font-family: var(--f-mono); font-size: 0.78rem; color: var(--tinta-suave); font-weight: 400; }

/* ---------- Deslizadores ---------- */
.fb .rango { display: grid; grid-template-columns: auto minmax(90px, 1fr) auto; align-items: center; gap: 4px 10px; }
.fb .rango label { font-weight: 700; font-size: 0.92rem; }
.fb .rango output { font-size: 0.88rem; font-weight: 600; min-width: 5.5em; text-align: right; }
.fb .rango--banco { grid-template-columns: auto 130px auto; }
.fb .rango--banco output { color: #ffe9a8; }
.fb input[type="range"] { width: 100%; accent-color: var(--cobre); min-height: 30px; background: transparent; }
.fb .rango--banco input[type="range"] { accent-color: var(--r-bat); }

/* ---------- Selector segmentado ---------- */
.fb .segmentos { border: 0; margin: 0; padding: 0; min-width: 0; }
.fb .segmentos legend { font-weight: 700; font-size: 0.92rem; padding: 0; margin-bottom: 4px; }
.fb .segmentos__opciones { display: flex; flex-wrap: wrap; gap: 0; border: 1px solid var(--borde-fuerte); border-radius: var(--radio); overflow: hidden; width: max-content; max-width: 100%; }
.fb .segmentos label { position: relative; cursor: pointer; }
.fb .segmentos input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.fb .segmentos span { display: block; padding: 6px 11px; font-size: 0.86rem; font-weight: 700; border-right: 1px solid var(--borde); background: var(--superficie); min-height: 34px; line-height: 22px; }
.fb .segmentos label:last-child span { border-right: 0; }
.fb .segmentos input:checked + span { background: var(--mascara); color: var(--serigrafia); }
.fb .segmentos input:focus-visible + span { outline: 3px solid var(--foco); outline-offset: -3px; }

/* ---------- Índice de secciones ---------- */
.fb .indice__lista { list-style: none; margin: 0; padding: 0; display: grid; gap: 3px; }
.fb .indice__lista a {
  display: flex; align-items: center; gap: 10px; text-decoration: none;
  padding: 7px 10px; border-radius: var(--radio); font-weight: 700; font-size: 0.95rem;
  border: 1px solid transparent; color: var(--tinta-suave);
}
.fb .indice__lista a:hover { background: var(--superficie); color: var(--tinta); border-color: var(--borde); }
.fb .indice__lista a[aria-current="true"] { background: var(--superficie); color: var(--tinta); border-color: var(--borde-fuerte); box-shadow: inset 4px 0 0 var(--cobre); }
.fb .indice__letra {
  width: 24px; height: 24px; flex: none; display: grid; place-items: center;
  font-family: var(--f-mono); font-size: 0.8rem; border-radius: 3px;
  background: var(--mascara); color: var(--serigrafia);
}
.fb .indice__lista a[aria-current="true"] .indice__letra { background: var(--cobre); }
.fb .indice__nota { font-size: 0.82rem; color: var(--tinta-suave); margin-top: 14px; padding: 10px; border: 1px dashed var(--borde-fuerte); border-radius: var(--radio); }
@media (max-width: 1100px) {
  .fb .indice { margin-inline: calc(-1 * max(16px, env(safe-area-inset-left, 0px))) calc(-1 * max(16px, env(safe-area-inset-right, 0px))); }
  .fb .indice__lista { display: flex; overflow-x: auto; gap: 4px; padding: 4px max(16px, env(safe-area-inset-left, 0px)) 8px; scrollbar-width: thin; }
  .fb .indice__lista a { white-space: nowrap; padding: 6px 10px; background: var(--superficie); border-color: var(--borde); min-height: 40px; }
  .fb .indice__nota { display: none; }
}

/* ---------- Secciones ---------- */
.fb .seccion[hidden] { display: none; }
.fb .seccion { animation: entra 0.28s ease-out; }
@keyframes entra { from { opacity: 0.4; transform: translateY(4px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .fb .seccion { animation: none; } }

.fb .cab { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 4px 16px; align-items: start; margin-bottom: 14px; }
.fb .cab__letra {
  grid-row: span 2; width: 64px; height: 64px; display: grid; place-items: center;
  font-family: var(--f-mono); font-size: 1.9rem; font-weight: 600;
  border: 2px solid var(--tinta); border-radius: 4px; position: relative;
  background: var(--superficie);
}
.fb .cab__letra::after { content: ""; position: absolute; left: 6px; top: 6px; width: 7px; height: 7px; border-radius: 50%; background: var(--tinta); }
.fb .cab h2 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); text-transform: uppercase; }
.fb .cab__refs { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 6px; }
.fb .ref {
  font-family: var(--f-mono); font-size: 0.74rem; padding: 1px 6px; border-radius: 3px;
  background: var(--mascara); color: var(--serigrafia); white-space: nowrap;
}

.fb .cita { margin: 0; padding: 4px 0 4px 14px; border-left: 4px solid var(--cobre); }
.fb .cita p { margin: 0 0 3px; font-size: 1.04rem; }
.fb .cita--grande p { font-size: 1.12rem; }
.fb .porque { margin-top: 10px; font-size: 0.98rem; color: var(--tinta-suave); }
.fb .porque strong { color: var(--tinta); font-family: var(--f-titulo); text-transform: uppercase; letter-spacing: 0.05em; margin-right: 6px; }

.fb .intro { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 16px 22px; margin-bottom: 16px; }
@media (max-width: 900px) { .fb .intro { grid-template-columns: minmax(0, 1fr); } }

/* ---------- Paneles ---------- */
.fb .panel { background: var(--superficie); border: 1px solid var(--borde); border-radius: var(--radio); box-shadow: var(--sombra); min-width: 0; overflow: hidden; }
.fb .panel__cab {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 6px 12px; background: var(--mascara); color: var(--serigrafia);
  font-family: var(--f-titulo); font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; font-size: 0.98rem;
}
.fb .panel__cab .panel__extra { margin-left: auto; display: flex; gap: 6px; align-items: center; text-transform: none; letter-spacing: 0; font-family: var(--f-texto); font-size: 0.82rem; }
.fb .panel__cuerpo { padding: 12px; }
.fb .panel__cuerpo--sin { padding: 0; }

.fb .mesa { display: grid; grid-template-columns: minmax(0, 2.2fr) minmax(290px, 1fr); gap: 14px; margin-bottom: 14px; }
.fb .mesa--osc { grid-template-columns: minmax(0, 1.65fr) minmax(280px, 1fr); }
/* Esquemas muy anchos: el esquema ocupa la fila y los controles se reparten debajo */
.fb .mesa--ancha { grid-template-columns: minmax(0, 1fr); }
.fb .mesa--ancha .controles { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); align-items: start; }
.fb .mesa--ancha .controles > .lecturas, .fb .mesa--ancha .controles > .formula { grid-column: 1 / -1; }
@media (max-width: 1000px) { .fb .mesa, .fb .mesa--osc { grid-template-columns: minmax(0, 1fr); } }
.fb .columna { display: grid; gap: 14px; align-content: start; min-width: 0; }

/* ---------- Esquemas SVG ---------- */
.fb .esquema { display: block; width: 100%; height: auto; background: var(--superficie); touch-action: manipulation; }
.fb .esquema text { font-family: var(--f-mono); fill: var(--pieza-texto); }
.fb .esquema .t-ref { font-weight: 600; font-size: 14px; }
.fb .esquema .t-valor { font-size: 12px; fill: var(--tinta-suave); }
.fb .esquema .t-red { font-size: 12px; font-weight: 600; }
.fb .esquema .t-grande { font-family: var(--f-titulo); font-size: 18px; font-weight: 700; letter-spacing: 0.02em; }
.fb .esquema .t-titulo { font-family: var(--f-titulo); font-size: 15px; font-weight: 600; fill: var(--tinta-suave); text-transform: uppercase; letter-spacing: 0.08em; }
.fb .esquema .rejilla { fill: none; }
.fb .esquema .pieza { transition: opacity 0.25s; }
.fb .esquema .apagada { opacity: 0.32; }
.fb .esquema .fallo-contorno { stroke: var(--fallo) !important; }
.fb .esquema .clicable { cursor: pointer; }
.fb .esquema .clicable:focus-visible { outline: none; }
.fb .esquema .clicable:focus-visible > :first-child { stroke: var(--foco); stroke-width: 3; }

/* ---------- Paso a paso ---------- */
.fb .pasos { border-top: 1px solid var(--borde); background: var(--superficie-2); padding: 10px 12px 12px; }
.fb .pasos__escenas { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 8px; }
.fb .pasos__escenas button { font: inherit; font-size: 0.82rem; font-weight: 700; padding: 4px 9px; min-height: 32px; border-radius: 4px; border: 1px solid var(--borde-fuerte); background: var(--superficie); color: var(--tinta); cursor: pointer; }
.fb .pasos__escenas button[aria-pressed="true"] { background: var(--cobre); border-color: var(--cobre); color: #fff; }
.fb .pasos__fila { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.fb .pasos__num { display: flex; gap: 4px; flex-wrap: wrap; }
.fb .pasos__num button {
  width: 34px; height: 34px; border-radius: 50%; font-family: var(--f-mono); font-weight: 600; font-size: 0.88rem;
  border: 2px solid var(--oro-borde); background: var(--superficie); color: var(--tinta); cursor: pointer;
}
.fb .pasos__num button[aria-current="step"] { background: var(--oro); color: #1b1300; border-color: var(--oro-borde); }
.fb .pasos__auto { margin-left: auto; white-space: nowrap; }
.fb .pasos__titulo { font-family: var(--f-titulo); font-weight: 700; font-size: 1.2rem; margin: 8px 0 2px; letter-spacing: 0.02em; }
.fb .pasos__texto { font-size: 1.05rem; min-height: 3em; margin: 0; }
.fb .pasos__barra { height: 3px; background: var(--borde); margin-top: 8px; border-radius: 2px; overflow: hidden; }
.fb .pasos__barra span { display: block; height: 100%; width: 0; background: var(--cobre); }

/* ---------- Lecturas (polímetro) ---------- */
.fb .lecturas { display: grid; grid-template-columns: repeat(auto-fill, minmax(132px, 1fr)); gap: 6px; margin: 0; }
.fb .lectura { background: var(--superficie-2); border: 1px solid var(--borde); border-radius: 4px; padding: 5px 8px; min-width: 0; }
.fb .lectura dt { font-size: 0.74rem; color: var(--tinta-suave); line-height: 1.2; }
.fb .lectura dd { margin: 0; font-family: var(--f-mono); font-size: 1rem; font-weight: 600; overflow-wrap: anywhere; }
.fb .lectura[data-nivel="ok"] { border-color: var(--ok); background: var(--ok-fondo); }
.fb .lectura[data-nivel="aviso"] { border-color: var(--aviso); background: var(--aviso-fondo); }
.fb .lectura[data-nivel="fallo"] { border-color: var(--fallo); background: var(--fallo-fondo); }
.fb .lectura[data-nivel="fallo"] dd { color: var(--fallo); }
.fb .controles { display: grid; gap: 12px; }
.fb .controles__fila { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.fb .formula { font-family: var(--f-mono); font-size: 0.8rem; color: var(--tinta-suave); background: var(--superficie-2); border-left: 3px solid var(--borde-fuerte); padding: 4px 8px; margin: 0; overflow-wrap: anywhere; }
.fb .aviso { display: flex; gap: 8px; align-items: flex-start; font-size: 0.92rem; font-weight: 700; padding: 8px 10px; border-radius: 4px; border: 1px solid var(--aviso); background: var(--aviso-fondo); }
.fb .aviso[data-nivel="fallo"] { border-color: var(--fallo); background: var(--fallo-fondo); }
.fb .aviso[data-nivel="ok"] { border-color: var(--ok); background: var(--ok-fondo); }
.fb .aviso[hidden] { display: none; }
.fb .aviso::before { content: "!"; flex: none; width: 20px; height: 20px; border-radius: 50%; display: grid; place-items: center; font-family: var(--f-mono); font-size: 0.8rem; background: currentColor; color: var(--superficie); }
.fb .aviso[data-nivel="ok"]::before { content: "✓"; }

/* ---------- Osciloscopio ---------- */
.fb .osc { background: var(--osc-marco); color: var(--osc-texto); border-radius: var(--radio); border: 1px solid var(--borde-fuerte); overflow: hidden; }
.fb .osc__cab { display: flex; flex-wrap: wrap; gap: 6px 10px; align-items: center; padding: 8px 10px; border-bottom: 1px solid rgba(255,255,255,0.07); }
.fb .osc__titulo { font-family: var(--f-titulo); font-size: 1rem; font-weight: 600; letter-spacing: 0.04em; color: #e5f1ea; margin-right: auto; min-width: 0; }
.fb .osc__tipo { font-family: var(--f-mono); font-size: 0.7rem; font-weight: 600; letter-spacing: 0.1em; padding: 2px 7px; border-radius: 3px; border: 1px solid currentColor; }
.fb .osc__tipo[data-tipo="simulada"] { color: var(--t-ch2); }
.fb .osc__tipo[data-tipo="idealizada"] { color: var(--t-ch3); }
.fb .osc__pantalla { position: relative; background: var(--osc-fondo); aspect-ratio: 10 / 6.2; min-height: 200px; touch-action: none; cursor: crosshair; }
.fb .osc__pantalla canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.fb .osc__estado { position: absolute; inset: 0; display: grid; place-items: center; font-family: var(--f-mono); font-size: 0.9rem; color: var(--osc-texto); text-align: center; padding: 20px; }
.fb .osc__estado[hidden] { display: none; }
.fb .osc__pie { padding: 8px 10px; display: grid; gap: 8px; }
.fb .osc__canales { display: flex; flex-wrap: wrap; gap: 5px; }
.fb .osc__canal { font: inherit; font-family: var(--f-mono); font-size: 0.74rem; padding: 3px 8px; min-height: 30px; border-radius: 3px; cursor: pointer; background: transparent; color: var(--osc-texto); border: 1px solid rgba(255,255,255,0.18); display: inline-flex; gap: 6px; align-items: center; }
.fb .osc__canal i { width: 10px; height: 10px; border-radius: 2px; flex: none; }
.fb .osc__canal[aria-pressed="false"] { opacity: 0.45; text-decoration: line-through; }
.fb .osc__ctrl { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.fb .osc__ctrl .boton { background: rgba(255,255,255,0.06); color: #e5f1ea; border-color: rgba(255,255,255,0.22); box-shadow: none; }
.fb .osc__ctrl .boton[aria-pressed="true"] { background: var(--t-ch1); color: #1b1600; border-color: var(--t-ch1); }
.fb .osc__ctrl select { font: inherit; font-size: 0.84rem; min-height: 32px; max-width: 100%; background: #0b1410; color: #e5f1ea; border: 1px solid rgba(255,255,255,0.22); border-radius: 4px; padding: 3px 6px; }
.fb .osc__lectura { font-family: var(--f-mono); font-size: 0.78rem; color: #d7e9de; min-height: 1.3em; overflow-wrap: anywhere; }
.fb .osc__nota { font-size: 0.8rem; color: #a8c2b3; margin: 0; }
.fb .osc__banco { font-size: 0.8rem; color: #e5f1ea; margin: 0; padding: 5px 8px; border: 1px dashed rgba(255,255,255,0.22); border-radius: 4px; }
.fb .osc__banco b { font-family: var(--f-titulo); letter-spacing: 0.05em; text-transform: uppercase; color: var(--t-ch1); margin-right: 4px; }

/* Lista de señales (dónde medir) */
.fb .senales { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.fb .senales button {
  width: 100%; text-align: left; font: inherit; cursor: pointer; padding: 8px 10px; border-radius: 4px;
  background: var(--superficie-2); color: var(--tinta); border: 1px solid var(--borde);
  display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 2px 8px; align-items: start;
}
.fb .senales button[aria-pressed="true"] { border-color: var(--cobre); box-shadow: inset 4px 0 0 var(--cobre); background: var(--superficie); }
.fb .senales .donde { font-weight: 700; grid-column: 2; }
.fb .senales .que { font-size: 0.86rem; color: var(--tinta-suave); grid-column: 2; }
.fb .senales .tpbola { grid-row: span 2; }

/* ---------- Puntos de prueba (bolas doradas) ---------- */
.fb .tpbola {
  display: inline-grid; place-items: center; min-width: 30px; height: 30px; padding: 0 5px; border-radius: 15px;
  background: radial-gradient(circle at 35% 30%, #fff3c4, var(--oro) 55%, var(--oro-borde));
  color: #231900; font-family: var(--f-mono); font-size: 0.7rem; font-weight: 600; border: 1px solid var(--oro-borde);
}
.fb button.tpbola { cursor: pointer; font: inherit; font-family: var(--f-mono); font-size: 0.72rem; font-weight: 600; }
.fb button.tpbola[aria-pressed="true"] { outline: 3px solid var(--cobre); outline-offset: 1px; }

/* ---------- Cómo revisarlo si falla ---------- */
.fb .revisar { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(260px, 0.9fr); gap: 14px; }
@media (max-width: 900px) { .fb .revisar { grid-template-columns: minmax(0, 1fr); } }
.fb .checklist { list-style: none; margin: 0; padding: 0; counter-reset: paso; display: grid; gap: 8px; }
.fb .checklist li { counter-increment: paso; display: grid; grid-template-columns: auto auto minmax(0, 1fr); gap: 8px; align-items: start; padding: 8px; border-radius: 4px; border: 1px solid var(--borde); background: var(--superficie-2); }
.fb .checklist li::before { content: counter(paso); width: 24px; height: 24px; border-radius: 3px; display: grid; place-items: center; font-family: var(--f-mono); font-size: 0.8rem; background: var(--mascara); color: var(--serigrafia); margin-top: 2px; }
.fb .checklist input[type="checkbox"] { width: 20px; height: 20px; margin: 4px 0 0; accent-color: var(--ok); }
.fb .checklist li.hecho { opacity: 0.62; }
.fb .checklist .tps { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 4px; }
.fb .checklist p { margin: 0; font-size: 0.95rem; }
.fb .checklist strong { font-weight: 700; }
.fb .firmware { margin-top: 12px; padding: 10px 12px; border-radius: 4px; border: 1px solid var(--r-ana); background: var(--superficie-2); font-size: 0.92rem; }
.fb .firmware b { font-family: var(--f-titulo); text-transform: uppercase; letter-spacing: 0.05em; margin-right: 6px; }

/* ---------- Visor de la placa ---------- */
.fb .placa { position: relative; width: 100%; margin: 0 auto; }
.fb .placa img { display: block; width: 100%; height: auto; border-radius: 4px; user-select: none; -webkit-user-drag: none; }
.fb .placa svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.fb .placa__caras { display: flex; gap: 0; margin-bottom: 8px; }
.fb .placa__pie { font-size: 0.82rem; color: var(--tinta-suave); margin: 6px 0 0; min-height: 1.3em; }
.fb .zona { cursor: pointer; }
.fb .zona rect { fill: transparent; stroke: transparent; stroke-width: 6; transition: fill 0.15s, stroke 0.15s, opacity 0.15s; }
.fb .zona:hover rect, .fb .zona:focus-visible rect, .fb .zona.activa rect { stroke: var(--cobre-claro); fill: rgba(255, 210, 140, 0.18); }
.fb .placa.enfoque .zona:not(.activa):not(:hover) rect { fill: rgba(0, 0, 0, 0.42); }
.fb .zona:focus-visible { outline: none; }

/* ---------- Globo (tooltip) ---------- */
.fb .globo {
  position: fixed; z-index: 90; max-width: min(340px, calc(100vw - 24px)); pointer-events: none;
  background: var(--tinta); color: var(--superficie); padding: 8px 10px; border-radius: 5px;
  font-size: 0.86rem; line-height: 1.35; box-shadow: 0 8px 20px -8px rgba(0,0,0,0.5);
}
.fb .globo b { display: block; font-family: var(--f-titulo); font-size: 1rem; letter-spacing: 0.03em; margin-bottom: 2px; }
.fb .globo .mono { color: var(--oro); }
.fb .globo[hidden] { display: none; }

/* Términos del glosario dentro del texto */
.fb .term { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: help; text-decoration: underline dotted var(--cobre); text-underline-offset: 3px; text-decoration-thickness: 2px; }
.fb .term:hover { color: var(--cobre); }

/* ---------- Desplegables ---------- */
.fb details.mas { border: 1px solid var(--borde); border-radius: var(--radio); background: var(--superficie); }
.fb details.mas summary { cursor: pointer; padding: 9px 12px; font-family: var(--f-titulo); font-weight: 700; font-size: 1.05rem; letter-spacing: 0.04em; text-transform: uppercase; list-style: none; display: flex; align-items: center; gap: 8px; }
.fb details.mas summary::-webkit-details-marker { display: none; }
.fb details.mas summary::before { content: "+"; width: 20px; height: 20px; display: grid; place-items: center; font-family: var(--f-mono); border: 1px solid var(--borde-fuerte); border-radius: 3px; }
.fb details.mas[open] summary::before { content: "−"; }
.fb details.mas > div { padding: 0 14px 12px; }
.fb details.mas ul { margin: 0; padding-left: 20px; }
.fb details.mas li { margin-bottom: 5px; }
.fb .pie-seccion { display: grid; gap: 10px; margin-top: 14px; }

/* ---------- Tablas ---------- */
.fb .tabla-envoltura { overflow-x: auto; max-width: 100%; }
.fb .tabla { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.fb .tabla th, .fb .tabla td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--borde); vertical-align: top; }
.fb .tabla th { font-family: var(--f-titulo); font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; font-size: 0.86rem; background: var(--superficie-2); }
.fb .tabla td.mono, .fb .tabla td code { font-family: var(--f-mono); font-size: 0.84rem; }
.fb .tabla tr.oculta { display: none; }
.fb input[type="search"], .fb input[type="text"] { font: inherit; min-height: 38px; padding: 6px 10px; border-radius: 4px; border: 1px solid var(--borde-fuerte); background: var(--superficie); color: var(--tinta); width: 100%; max-width: 420px; }
.fb code { font-family: var(--f-mono); font-size: 0.88em; background: var(--superficie-2); padding: 0 4px; border-radius: 3px; }

/* ---------- Navegación entre secciones ---------- */
.fb .navsec { display: flex; justify-content: space-between; gap: 10px; margin-top: 22px; flex-wrap: wrap; }
.fb .navsec a { text-decoration: none; display: inline-flex; flex-direction: column; padding: 10px 14px; border-radius: var(--radio); border: 1px solid var(--borde-fuerte); background: var(--superficie); min-width: 180px; }
.fb .navsec a small { font-size: 0.76rem; color: var(--tinta-suave); text-transform: uppercase; letter-spacing: 0.06em; }
.fb .navsec a span { font-family: var(--f-titulo); font-weight: 700; font-size: 1.15rem; }
.fb .navsec a.siguiente { margin-left: auto; text-align: right; }
.fb .navsec a:hover { border-color: var(--cobre); }

/* ---------- LED dibujados en HTML ---------- */
.fb .led { --c: var(--ok); width: 16px; height: 16px; border-radius: 50%; display: inline-block; flex: none; background: var(--led-apagado); border: 1px solid var(--borde-fuerte); vertical-align: middle; }
.fb .led.encendido { background: var(--c); box-shadow: 0 0 10px 2px var(--c); border-color: var(--c); }

/* ---------- Diagrama de bloques (vista general) ---------- */
.fb .diagrama { display: block; width: 100%; height: auto; }
.fb .diagrama text { font-family: var(--f-mono); fill: var(--pieza-texto); }
.fb .dnodo rect { fill: var(--pieza-fondo); stroke: var(--pieza-borde); stroke-width: 1.5; transition: opacity 0.3s, fill 0.3s; }
.fb .dnodo.activo rect { stroke-width: 2.5; }
.fb .dnodo.dormido { opacity: 0.38; }
.fb .dnodo { cursor: pointer; }
.fb .dnodo:focus-visible { outline: none; }
.fb .dnodo:focus-visible rect { stroke: var(--foco); stroke-width: 3; }
.fb .contador { font-family: var(--f-mono); font-size: 1.6rem; font-weight: 600; }
.fb .datos-placa { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 6px; margin: 0; }
.fb .datos-placa div { padding: 6px 9px; border-radius: 4px; background: var(--superficie-2); border: 1px solid var(--borde); }
.fb .datos-placa dt { font-size: 0.74rem; color: var(--tinta-suave); }
.fb .datos-placa dd { margin: 0; font-family: var(--f-mono); font-weight: 600; font-size: 0.92rem; }

/* ---------- Glosario ---------- */
.fb .glosario { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 8px; margin: 12px 0 0; }
.fb .glosario div { padding: 10px 12px; border-radius: 4px; background: var(--superficie); border: 1px solid var(--borde); scroll-margin-top: 150px; }
.fb .glosario div:target, .fb .glosario div.resaltado { border-color: var(--cobre); box-shadow: inset 4px 0 0 var(--cobre); }
.fb .glosario dt { font-family: var(--f-titulo); font-weight: 700; font-size: 1.12rem; letter-spacing: 0.02em; }
.fb .glosario dd { margin: 2px 0 0; font-size: 0.95rem; }

.fb .aviso-js { padding: 20px; border: 2px solid var(--fallo); border-radius: var(--radio); }
.fb .pequeno { font-size: 0.84rem; color: var(--tinta-suave); }
.fb .chips { display: flex; flex-wrap: wrap; gap: 5px; }

/* ---------- Pantallas estrechas ---------- */
/* Los esquemas no se encogen por debajo de lo legible: se desplazan dentro de su panel */
.fb .panel__cuerpo--sin { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.fb .desliza { display: none; font-size: 0.8rem; color: var(--tinta-suave); padding: 4px 12px 0; margin: 0; }
@media (max-width: 760px) {
  .fb .esquema { min-width: 680px; }
  .fb .desliza { display: block; }
}