/* ============================================================
   Juego · Configuración electrónica.
   Clases con prefijo ce- (convención del proyecto: nada de nombres
   genéricos). Sin var()/custom properties — colores literales, que
   es lo único que entiende el validador CSS de NetBeans 8.2.

   Paleta heredada de main.css:
     bg #eef2f7 · superficie #ffffff · texto #1b2433 · apagado #5b6472
     acento #e8a020 · acento-texto #a8710f · azul #2b6cb0
     rojo #c23636 · verde #2f9160 · borde rgba(15,23,42,0.10)

   Colores de subnivel: los MISMOS que CE_COLORES en
   configuracionData.js (el CSS no puede leerlos de allí). Si se
   cambia uno, se cambia en los dos sitios.
          vivo (canvas / ficha llena)   texto       fondo     borde
     s    #ff6f91                       #c93a62     #ffe9ef   #f3a5b9
     p    #ffbe3d                       #a8710f     #fff3d9   #f0cf80
     d    #4fa8ff                       #2b6cb0     #e5f1ff   #a9cdf2
     f    #b993ff                       #7353b3     #f1eaff   #cdb8f5
   ============================================================ */

.ce-main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px 56px;
  width: 100%;
}

/* ── Cabecera del menú ──────────────────────────────────── */
.ce-hero {
  position: relative;
  min-height: 150px;
}

.ce-hero h1 {
  font-family: 'Fredoka', 'Playfair Display', serif;
  margin: 0 0 10px;
}

.ce-hero p {
  margin: 0;
  max-width: 560px;
}

/* Un átomo que se construye solo, en un disco oscuro como el del juego. */
.ce-hero-deco {
  position: absolute;
  right: 8px;
  top: 50%;
  width: 180px;
  height: 180px;
  margin-top: -90px;
  border-radius: 50%;
  overflow: hidden;
  background: radial-gradient(circle at 50% 45%, #1f3354 0%, #13233b 60%, #0d1828 100%);
  box-shadow: 0 12px 30px rgba(15, 27, 45, 0.25);
  pointer-events: none;
}

.ce-hero-deco canvas {
  display: block;
  width: 100%;
  height: auto;
}

@media (max-width: 860px) {
  .ce-hero-deco { display: none; }
}

/* ── MENÚ ───────────────────────────────────────────────── */
.ce-menu-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 26px;
  align-items: start;
  margin-top: 26px;
}

.ce-menu-form,
.ce-comojuega,
.ce-ranking {
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.10);
  border-radius: 16px;
}

.ce-menu-form {
  padding: 24px 26px 28px;
}

.ce-section-title {
  font-family: 'Fredoka', 'Source Sans 3', sans-serif;
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0 0 12px;
  color: #1b2433;
}

.ce-section-title-sep {
  margin-top: 26px;
}

.ce-opcion-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}

.ce-radio {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.ce-opcion-card {
  display: block;
  border: 2px solid rgba(15, 23, 42, 0.10);
  border-radius: 14px;
  padding: 14px 16px;
  cursor: pointer;
  background: #f5f7fb;
  transition: border-color 0.15s ease, background 0.15s ease, transform 0.15s ease, opacity 0.15s ease;
}

.ce-opcion-card:hover {
  transform: translateY(-2px);
  border-color: rgba(232, 160, 32, 0.55);
}

.ce-radio:checked + .ce-opcion-card {
  border-color: #e8a020;
  background: #fff8ec;
}

.ce-radio:focus-visible + .ce-opcion-card {
  outline: 3px solid #2b6cb0;
  outline-offset: 2px;
}

.ce-radio:disabled + .ce-opcion-card {
  cursor: default;
  transform: none;
}

.ce-niveles-apagados .ce-opcion-card {
  opacity: 0.45;
}

.ce-opcion-icono {
  color: #2b6cb0;
  margin-bottom: 6px;
  line-height: 1;
}

.ce-opcion-icono .jv-icon {
  width: 30px;
  height: 30px;
}

.ce-opcion-icono-texto {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
}

.ce-opcion-z {
  font-family: 'Fredoka', 'Source Sans 3', sans-serif;
  font-weight: 600;
  font-size: 1.15rem;
  color: #1b2433;
}

.ce-opcion-cola {
  font-size: 0.85rem;
  color: #a8710f;
  font-weight: 600;
}

.ce-opcion-nombre {
  font-weight: 700;
  color: #1b2433;
  margin-bottom: 3px;
}

.ce-opcion-desc {
  font-size: 0.88rem;
  color: #5b6472;
  line-height: 1.35;
}

.ce-nota-lab {
  margin: 10px 0 0;
  font-size: 0.88rem;
  color: #2b6cb0;
}

.ce-nota-lab[hidden] {
  display: none;
}

.ce-menu-footer {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.ce-aviso-menu {
  font-size: 0.88rem;
  color: #5b6472;
  margin: 0;
  flex: 1;
  min-width: 220px;
}

.ce-comojuega {
  margin-top: 22px;
  padding: 20px 26px 22px;
}

.ce-comojuega ul {
  margin: 0;
  padding-left: 20px;
  line-height: 1.6;
  color: #1b2433;
}

.ce-comojuega li + li {
  margin-top: 4px;
}

.ce-modelo-nota {
  margin: 14px 0 0;
  font-size: 0.86rem;
  color: #5b6472;
  border-left: 3px solid #a9cdf2;
  padding-left: 10px;
}

.ce-volver {
  margin: 16px 0 0;
  font-size: 0.92rem;
}

.ce-volver a {
  color: #2b6cb0;
}

/* ── Botones ────────────────────────────────────────────── */
.ce-btn {
  font-family: 'Fredoka', 'Source Sans 3', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: 12px;
  padding: 12px 24px;
  background: #e8a020;
  color: #1b2433;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: filter 0.15s ease, transform 0.15s ease;
}

.ce-btn:hover {
  filter: brightness(1.06);
  transform: translateY(-1px);
  color: #1b2433;
}

.ce-btn-sec {
  background: #f5f7fb;
  border: 1px solid rgba(15, 23, 42, 0.14);
  color: #1b2433;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: 12px;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  font-size: 0.94rem;
}

.ce-btn-sec:hover {
  background: #eef2f7;
  color: #1b2433;
}

.ce-btn-mini {
  border: 1px solid rgba(15, 23, 42, 0.14);
  background: #f5f7fb;
  border-radius: 10px;
  padding: 6px 11px;
  font-size: 0.86rem;
  font-weight: 600;
  color: #1b2433;
  cursor: pointer;
}

.ce-btn-mini:hover {
  background: #eef2f7;
}

.ce-btn-parar {
  background: #c23636;
  color: #ffffff;
}

.ce-btn-parar:hover {
  color: #ffffff;
}

/* ── Ranking ────────────────────────────────────────────── */
.ce-ranking {
  padding: 18px 20px 22px;
}

.ce-ranking h2 {
  font-family: 'Fredoka', 'Source Sans 3', sans-serif;
  font-size: 1.02rem;
  margin: 0 0 2px;
}

.ce-ranking-sub {
  font-size: 0.82rem;
  color: #5b6472;
  margin: 0 0 12px;
}

.ce-ranking-tabla {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.ce-ranking-tabla th {
  text-align: left;
  font-weight: 600;
  color: #5b6472;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding-bottom: 6px;
  border-bottom: 1px solid rgba(15, 23, 42, 0.10);
}

.ce-ranking-tabla td {
  padding: 6px 4px;
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
}

.ce-ranking-tabla td:first-child {
  color: #a8710f;
  font-weight: 700;
  width: 26px;
}

.ce-ranking-tabla td:nth-child(3) {
  font-weight: 700;
  text-align: right;
  font-family: 'Fira Mono', monospace;
  font-size: 0.85rem;
}

.ce-ranking-vacio {
  font-size: 0.88rem;
  color: #5b6472;
  margin: 0;
}

/* ── PARTIDA: estructura ────────────────────────────────── */
.ce-jugar-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 440px;
  gap: 22px;
  align-items: start;
  margin-top: 24px;
}

.ce-escena {
  min-width: 0;
}

.ce-cabecera {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 12px;
  margin-bottom: 12px;
}

/* Ficha del elemento objetivo (o del actual, en el laboratorio). */
.ce-objetivo {
  flex: 1;
  min-width: 260px;
  display: flex;
  align-items: center;
  gap: 14px;
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.10);
  border-radius: 16px;
  padding: 10px 14px;
}

.ce-obj-ficha {
  position: relative;
  flex: 0 0 auto;
  width: 66px;
  height: 72px;
  border-radius: 12px;
  background: #1b2433;
  color: #ffffff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.ce-obj-ficha-s { background: #ff6f91; color: #1b2433; }
.ce-obj-ficha-p { background: #ffbe3d; color: #1b2433; }
.ce-obj-ficha-d { background: #4fa8ff; color: #1b2433; }
.ce-obj-ficha-f { background: #b993ff; color: #1b2433; }

.ce-obj-ficha-vacia {
  background: #eef2f7;
  color: #5b6472;
  border: 2px dashed rgba(15, 23, 42, 0.18);
}

.ce-obj-z {
  position: absolute;
  top: 6px;
  left: 7px;
  font-size: 0.7rem;
  font-weight: 700;
  opacity: 0.85;
}

.ce-obj-simbolo {
  font-family: 'Fredoka', 'Source Sans 3', sans-serif;
  font-weight: 600;
  font-size: 1.65rem;
  margin-top: 6px;
}

.ce-obj-nombre {
  font-size: 0.62rem;
  margin-top: 5px;
  max-width: 60px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  opacity: 0.85;
}

.ce-obj-texto {
  flex: 1;
  min-width: 0;
}

.ce-obj-etq {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #5b6472;
  font-weight: 600;
}

.ce-obj-titulo {
  font-family: 'Fredoka', 'Source Sans 3', sans-serif;
  font-size: 1.3rem;
  font-weight: 600;
  color: #1b2433;
  line-height: 1.2;
}

.ce-obj-z-txt {
  font-family: 'Source Sans 3', sans-serif;
  font-size: 0.9rem;
  color: #5b6472;
  font-weight: 600;
  margin-left: 4px;
  white-space: nowrap;
}

.ce-obj-tarea {
  font-size: 0.88rem;
  color: #5b6472;
  margin-top: 2px;
}

.ce-obj-contador {
  flex: 0 0 auto;
  text-align: right;
  font-family: 'Fredoka', 'Source Sans 3', sans-serif;
  font-size: 1.6rem;
  font-weight: 600;
  color: #1b2433;
  white-space: nowrap;
}

.ce-obj-contador-meta {
  font-size: 0.95rem;
  color: #5b6472;
}

/* HUD con reloj, fallos y átomo de la partida */
.ce-hud {
  display: flex;
  align-items: center;
  gap: 14px;
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.10);
  border-radius: 16px;
  padding: 8px 14px;
}

.ce-hud-dato {
  display: flex;
  flex-direction: column;
  min-width: 52px;
}

.ce-hud-etiqueta {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #5b6472;
  font-weight: 600;
}

.ce-hud-valor {
  font-family: 'Fredoka', 'Source Sans 3', sans-serif;
  font-size: 1.15rem;
  font-weight: 600;
  color: #1b2433;
  white-space: nowrap;
}

.ce-hud-valor-mono {
  font-family: 'Fira Mono', monospace;
  font-size: 1rem;
}

.ce-hud-acciones {
  display: flex;
  gap: 6px;
  margin-left: auto;
}

/* ── El átomo ───────────────────────────────────────────── */
.ce-canvas-wrap {
  position: relative;
  max-width: 620px;
  margin: 0 auto;
  border-radius: 20px;
  padding: 8px 8px 0;
  background: radial-gradient(circle at 50% 42%, #1f3354 0%, #13233b 58%, #0d1828 100%);
  box-shadow: 0 14px 34px rgba(15, 27, 45, 0.22);
}

#ce-atomo {
  display: block;
  width: 100%;
  height: auto;
  touch-action: manipulation;
}

/* Aviso flotante: "¡Nivel 2 completo!", "Como el neón"... */
.ce-aviso {
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(255, 255, 255, 0.96);
  color: #1b2433;
  font-family: 'Fredoka', 'Source Sans 3', sans-serif;
  font-weight: 600;
  font-size: 0.98rem;
  padding: 7px 16px;
  border-radius: 999px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
  white-space: nowrap;
  max-width: 92%;
  overflow: hidden;
  text-overflow: ellipsis;
  pointer-events: none;
}

.ce-aviso[hidden] {
  display: none;
}

.ce-aviso-anim {
  animation: ce-aviso-entra 2.6s ease both;
}

@keyframes ce-aviso-entra {
  0%   { opacity: 0; transform: translate(-50%, -8px); }
  10%  { opacity: 1; transform: translate(-50%, 0); }
  80%  { opacity: 1; transform: translate(-50%, 0); }
  100% { opacity: 0; transform: translate(-50%, -6px); }
}

/* Leyenda: cómo leer el dibujo. */
.ce-leyenda {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 6px 14px;
  padding: 8px 12px 12px;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.72);
}

.ce-leyenda-item {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-weight: 600;
}

.ce-punto {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.ce-punto-s { background: #ff6f91; }
.ce-punto-p { background: #ffbe3d; }
.ce-punto-d { background: #4fa8ff; }
.ce-punto-f { background: #b993ff; }

.ce-leyenda-texto {
  flex-basis: 100%;
  text-align: center;
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.76rem;
}

/* ── Configuración escrita y números cuánticos ──────────── */
.ce-config-caja {
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.10);
  border-radius: 16px;
  padding: 12px 16px 14px;
  margin-top: 14px;
}

.ce-config-fila {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.ce-config-fila + .ce-config-fila {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid rgba(15, 23, 42, 0.06);
}

.ce-etq {
  flex: 0 0 auto;
  width: 112px;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #5b6472;
  font-weight: 600;
}

.ce-config {
  font-size: 1.22rem;
  line-height: 1.6;
  min-height: 1.6em;
}

.ce-config-abrev {
  font-size: 1.02rem;
  line-height: 1.5;
}

.ce-config-vacia {
  color: #8a93a1;
  font-size: 0.92rem;
  font-style: italic;
}

.ce-term {
  font-weight: 600;
  white-space: nowrap;
  border-radius: 6px;
  padding: 0 2px;
}

.ce-term sup {
  font-size: 0.68em;
  font-weight: 700;
}

.ce-term-s { color: #c93a62; }
.ce-term-p { color: #a8710f; }
.ce-term-d { color: #2b6cb0; }
.ce-term-f { color: #7353b3; }
.ce-term-nucleo { color: #1b2433; }

.ce-term-nuevo {
  animation: ce-pop 0.45s ease;
}

.ce-term-s.ce-term-nuevo { background: #ffe9ef; }
.ce-term-p.ce-term-nuevo { background: #fff3d9; }
.ce-term-d.ce-term-nuevo { background: #e5f1ff; }
.ce-term-f.ce-term-nuevo { background: #f1eaff; }

@keyframes ce-pop {
  0%   { transform: scale(1); }
  40%  { transform: scale(1.18); }
  100% { transform: scale(1); }
}

.ce-term-nuevo {
  display: inline-block;
}

.ce-cuanticos {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.ce-qn-sub {
  font-weight: 700;
  font-size: 1.05rem;
  margin-right: 4px;
}

.ce-qn {
  display: inline-flex;
  align-items: baseline;
  gap: 5px;
  background: #f5f7fb;
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: 999px;
  padding: 2px 10px;
  font-size: 0.92rem;
}

.ce-qn-nombre {
  color: #5b6472;
  font-style: italic;
}

.ce-qn-valor {
  font-weight: 700;
  color: #1b2433;
}

.ce-qn-valor small {
  font-weight: 600;
  color: #5b6472;
}

.ce-cuanticos-nota {
  margin: 8px 0 0;
  font-size: 0.78rem;
  color: #8a93a1;
}

/* ── Panel derecho: diagrama de Moeller ─────────────────── */
.ce-panel {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.ce-panel-caja {
  position: relative;
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.10);
  border-radius: 16px;
  padding: 16px 16px 14px;
}

.ce-panel-titulo {
  font-family: 'Fredoka', 'Source Sans 3', sans-serif;
  font-size: 1.02rem;
  font-weight: 600;
  margin: 0 0 4px;
  color: #1b2433;
}

.ce-panel-sub {
  margin: 0 0 10px;
  font-size: 0.84rem;
  color: #5b6472;
}

/* Interruptor "1 electrón / llenarlo entero" */
.ce-segmentado {
  display: inline-flex;
  background: #eef2f7;
  border-radius: 10px;
  padding: 3px;
  gap: 3px;
  margin-bottom: 8px;
}

.ce-segmentado button {
  border: none;
  background: transparent;
  border-radius: 8px;
  padding: 5px 12px;
  font-size: 0.86rem;
  font-weight: 600;
  color: #5b6472;
  cursor: pointer;
}

.ce-segmentado button[aria-pressed="true"] {
  background: #ffffff;
  color: #1b2433;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.15);
}

.ce-moeller {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, auto);
  grid-template-rows: repeat(7, auto);
  gap: 9px 12px;
  justify-content: center;
  padding: 12px 6px 14px;
}

.ce-moeller-svg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  overflow: visible;
}

.ce-sub {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 5px 7px 6px;
  border-radius: 10px;
  border: 1.5px solid rgba(15, 23, 42, 0.14);
  background: #ffffff;
  font-family: 'Source Sans 3', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.2s ease;
}

.ce-sub:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.12);
}

.ce-sub:focus-visible {
  outline: 3px solid #2b6cb0;
  outline-offset: 2px;
}

.ce-sub-s { color: #c93a62; border-color: #f3a5b9; }
.ce-sub-p { color: #a8710f; border-color: #f0cf80; }
.ce-sub-d { color: #2b6cb0; border-color: #a9cdf2; }
.ce-sub-f { color: #7353b3; border-color: #cdb8f5; }

.ce-sub-parcial.ce-sub-s { background: #ffe9ef; }
.ce-sub-parcial.ce-sub-p { background: #fff3d9; }
.ce-sub-parcial.ce-sub-d { background: #e5f1ff; }
.ce-sub-parcial.ce-sub-f { background: #f1eaff; }

.ce-sub-lleno { color: #1b2433; }
.ce-sub-lleno.ce-sub-s { background: #ff6f91; border-color: #ff6f91; }
.ce-sub-lleno.ce-sub-p { background: #ffbe3d; border-color: #ffbe3d; }
.ce-sub-lleno.ce-sub-d { background: #4fa8ff; border-color: #4fa8ff; }
.ce-sub-lleno.ce-sub-f { background: #b993ff; border-color: #b993ff; }

.ce-sub-lleno::after {
  content: '✓';
  position: absolute;
  top: -8px;
  right: -8px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: #2f9160;
  color: #ffffff;
  font-size: 0.62rem;
  line-height: 15px;
  text-align: center;
}

.ce-sub-activo {
  box-shadow: 0 0 0 3px rgba(27, 36, 51, 0.85);
}

.ce-sub-nombre {
  white-space: nowrap;
}

.ce-sub-cuenta {
  font-size: 0.7em;
  margin-left: 1px;
}

.ce-sub-cajas {
  display: flex;
  gap: 2px;
}

/* Una caja = un orbital. Las flechas las pone el JS (Hund). */
.ce-caja {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 17px;
  height: 16px;
  border: 1px solid currentColor;
  border-radius: 3px;
  font-size: 10px;
  line-height: 1;
  font-weight: 700;
  overflow: hidden;
  opacity: 0.85;
}

/* Cada flecha en su hueco: juntas en un mismo texto se montaban una
   encima de otra y el par ↑↓ parecía un garabato. */
.ce-caja span {
  display: block;
  width: 7px;
  text-align: center;
}

.ce-sub-lleno .ce-caja {
  border-color: rgba(27, 36, 51, 0.45);
}

.ce-sub-error {
  animation: ce-sacudida 0.45s ease;
  box-shadow: 0 0 0 3px rgba(194, 54, 54, 0.75);
}

@keyframes ce-sacudida {
  0%, 100% { transform: translateX(0); }
  20%      { transform: translateX(-5px); }
  40%      { transform: translateX(5px); }
  60%      { transform: translateX(-3px); }
  80%      { transform: translateX(3px); }
}

/* En el laboratorio las fichas solo se miran. */
.ce-moeller-lab .ce-sub {
  cursor: default;
}

.ce-moeller-lab .ce-sub:hover {
  transform: none;
  box-shadow: none;
}

.ce-moeller-lab .ce-sub-activo,
.ce-moeller-lab .ce-sub-activo:hover {
  box-shadow: 0 0 0 3px rgba(27, 36, 51, 0.85);
}

/* En los cationes las fichas sirven para QUITAR: lo dice el cursor. */
.ce-moeller-quitar .ce-sub:hover {
  box-shadow: 0 0 0 2px rgba(194, 54, 54, 0.45), 0 4px 12px rgba(15, 23, 42, 0.12);
}

/* Atajos de gas noble */
.ce-nucleos {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  margin-top: 4px;
  padding-top: 10px;
  border-top: 1px solid rgba(15, 23, 42, 0.06);
}

.ce-nucleos-etq {
  font-size: 0.8rem;
  color: #5b6472;
  font-weight: 600;
}

.ce-nucleos-lista {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.ce-nucleo {
  border: 1px solid rgba(15, 23, 42, 0.16);
  background: #f5f7fb;
  border-radius: 8px;
  padding: 4px 9px;
  font-weight: 700;
  font-size: 0.88rem;
  color: #1b2433;
  cursor: pointer;
}

.ce-nucleo:hover:not(:disabled) {
  background: #fff8ec;
  border-color: #e8a020;
}

.ce-nucleo:disabled {
  opacity: 0.35;
  cursor: default;
}

/* Pista / explicación del fallo */
.ce-pista {
  margin: 10px 0 0;
  padding: 9px 12px;
  border-radius: 10px;
  font-size: 0.9rem;
  line-height: 1.4;
  min-height: 2.9em;
}

.ce-pista:empty {
  display: none;
}

.ce-pista-info {
  background: #eef4fb;
  color: #24496f;
}

.ce-pista-error {
  background: #fdecec;
  color: #8c2424;
}

.ce-pista-sacudida {
  animation: ce-sacudida 0.4s ease;
}

/* ── Resumen de cada átomo ──────────────────────────────────
   Ocupa el sitio del diagrama (que se esconde mientras tanto) en vez de
   taparlo: así la caja crece lo que haga falta y no hay scroll dentro. */
.ce-panel-con-resumen > *:not(.ce-resumen) {
  display: none;
}

.ce-resumen {
  animation: ce-resumen-entra 0.35s ease;
}

.ce-resumen[hidden] {
  display: none;
}

@keyframes ce-resumen-entra {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

.ce-resumen-titulo {
  font-family: 'Fredoka', 'Source Sans 3', sans-serif;
  font-size: 1.4rem;
  font-weight: 600;
  margin: 0 0 10px;
  color: #2f9160;
}

.ce-resumen-config {
  font-size: 1.12rem;
  line-height: 1.6;
}

.ce-resumen-abrev {
  margin-top: 6px;
  font-size: 1rem;
}

.ce-resumen-abrev .ce-etq {
  width: auto;
  margin-right: 6px;
}

.ce-resumen-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}

.ce-chip {
  display: inline-block;
  background: #eef2f7;
  color: #1b2433;
  border-radius: 999px;
  padding: 3px 11px;
  font-size: 0.84rem;
  font-weight: 700;
}

.ce-chip-s { background: #ffe9ef; color: #c93a62; }
.ce-chip-p { background: #fff3d9; color: #a8710f; }
.ce-chip-d { background: #e5f1ff; color: #2b6cb0; }
.ce-chip-f { background: #f1eaff; color: #7353b3; }

.ce-resumen-nota {
  margin: 10px 0 0;
  font-size: 0.88rem;
  color: #5b6472;
  line-height: 1.4;
}

.ce-excepcion,
.ce-lab-nota {
  margin-top: 12px;
  background: #fff8ec;
  border: 1px solid #f0cf80;
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 0.9rem;
  color: #1b2433;
}

.ce-lab-nota[hidden] {
  display: none;
}

.ce-excepcion p,
.ce-lab-nota p {
  margin: 6px 0 0;
  color: #5b6472;
  font-size: 0.86rem;
}

.ce-excepcion-config {
  white-space: nowrap;
}

.ce-resumen-tabla {
  margin-top: 14px;
}

.ce-resumen-fallos {
  margin: 12px 0 14px;
  font-size: 0.88rem;
  color: #5b6472;
  font-weight: 600;
}

/* ── Mini tabla periódica, coloreada por bloque ─────────── */
.ce-mt {
  display: grid;
  grid-template-columns: repeat(18, minmax(0, 1fr));
  grid-template-rows: repeat(7, 21px) 7px repeat(2, 21px);
  gap: 2px;
}

.ce-mt-celda {
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 3px;
  padding: 0;
  font-family: 'Source Sans 3', sans-serif;
  font-size: 9px;
  font-weight: 700;
  color: rgba(27, 36, 51, 0.75);
  overflow: hidden;
  transition: transform 0.15s ease, background 0.15s ease;
}

button.ce-mt-celda {
  cursor: pointer;
}

button.ce-mt-celda:hover {
  transform: scale(1.25);
  position: relative;
  z-index: 2;
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.25);
}

.ce-mt-s { background: #ffe9ef; }
.ce-mt-p { background: #fff3d9; }
.ce-mt-d { background: #e5f1ff; }
.ce-mt-f { background: #f1eaff; }

.ce-mt-hecho.ce-mt-s { background: #ffb3c5; }
.ce-mt-hecho.ce-mt-p { background: #ffdc8f; }
.ce-mt-hecho.ce-mt-d { background: #a9cdf2; }
.ce-mt-hecho.ce-mt-f { background: #d6c3fb; }

.ce-mt-actual {
  background: #1b2433;
  color: #ffffff;
  transform: scale(1.3);
  position: relative;
  z-index: 3;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.35);
}

.ce-mt-elegido {
  outline: 2px dashed #1b2433;
  outline-offset: -1px;
}

/* ── Laboratorio ────────────────────────────────────────── */
.ce-lab-controles {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.ce-lab-paso {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  border: 1px solid rgba(15, 23, 42, 0.16);
  background: #f5f7fb;
  font-size: 1.3rem;
  font-weight: 700;
  color: #1b2433;
  cursor: pointer;
  line-height: 1;
}

.ce-lab-paso:hover {
  background: #eef2f7;
}

.ce-lab-play {
  padding: 9px 16px;
  font-size: 0.95rem;
}

.ce-lab-vel {
  margin-left: auto;
}

/* Enlace de la ficha del laboratorio a la hibridación (Be, B, C, N, O). */
.ce-lab-hib {
  display: inline-block;
  margin-top: 8px;
  font-size: 0.88rem;
  font-weight: 700;
  color: #1f9c7e;
}

.ce-lab-ayuda {
  margin: 10px 0 0;
  font-size: 0.82rem;
  color: #5b6472;
}

/* ── Ventanas (empezar, ayuda, final) ───────────────────── */
.ce-modal {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 1000;
  background: rgba(15, 23, 42, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.ce-modal[hidden],
.ce-fin-record[hidden] {
  display: none;
}

.ce-modal-caja {
  background: #ffffff;
  border-radius: 18px;
  padding: 26px 26px 22px;
  width: 100%;
  max-width: 480px;
  max-height: 92vh;
  overflow-y: auto;
  text-align: center;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
  animation: ce-resumen-entra 0.3s ease;
}

.ce-modal-caja h2 {
  font-family: 'Fredoka', 'Source Sans 3', sans-serif;
  margin: 0 0 8px;
  font-size: 1.5rem;
}

.ce-modal-caja p {
  color: #5b6472;
  margin: 0 0 14px;
}

.ce-modal-caja ul {
  text-align: left;
  line-height: 1.55;
  padding-left: 20px;
  margin: 0 0 16px;
}

.ce-fin-record {
  display: inline-block;
  background: #2f9160;
  color: #ffffff;
  border-radius: 999px;
  padding: 3px 12px;
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 6px;
}

.ce-fin-tiempo {
  font-family: 'Fira Mono', monospace;
  font-size: 2.4rem;
  font-weight: 500;
  color: #1b2433;
  margin: 4px 0 6px;
}

.ce-form-guardar {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 8px 0 14px;
  text-align: left;
}

.ce-form-guardar input[type="text"] {
  border: 1px solid rgba(15, 23, 42, 0.2);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 1rem;
}

.ce-fin-acciones {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
}

/* Tras guardar en el ranking */
.ce-guardado-panel {
  max-width: 560px;
  margin: 40px auto 0;
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.10);
  border-radius: 18px;
  padding: 30px 28px;
  text-align: center;
}

.ce-guardado-panel h1 {
  font-family: 'Fredoka', 'Source Sans 3', sans-serif;
  font-size: 1.7rem;
  margin: 0 0 8px;
}

.ce-guardado-panel p {
  color: #5b6472;
}

.ce-guardado-acciones {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 1080px) {
  .ce-jugar-layout {
    grid-template-columns: minmax(0, 1fr) 400px;
  }
}

@media (max-width: 980px) {
  .ce-jugar-layout,
  .ce-menu-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .ce-main {
    padding: 0 12px 40px;
  }

  .ce-objetivo {
    min-width: 0;
    padding: 8px 10px;
    gap: 10px;
  }

  .ce-obj-ficha {
    width: 54px;
    height: 60px;
  }

  .ce-obj-simbolo {
    font-size: 1.35rem;
  }

  .ce-obj-titulo {
    font-size: 1.1rem;
  }

  .ce-obj-contador {
    font-size: 1.25rem;
  }

  .ce-hud {
    width: 100%;
    gap: 10px;
  }

  .ce-moeller {
    gap: 7px 6px;
    padding: 10px 0 12px;
  }

  .ce-sub {
    padding: 4px 4px 5px;
    font-size: 0.84rem;
  }

  .ce-caja {
    width: 12px;
    height: 13px;
    font-size: 8px;
  }

  .ce-caja span {
    width: 5px;
  }

  .ce-etq {
    width: 84px;
  }

  .ce-config {
    font-size: 1.05rem;
  }

  .ce-mt {
    grid-template-rows: repeat(7, 17px) 6px repeat(2, 17px);
    gap: 1px;
  }

  .ce-mt-celda {
    font-size: 7px;
  }

  .ce-menu-form,
  .ce-comojuega {
    padding: 18px 16px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ce-term-nuevo,
  .ce-sub-error,
  .ce-pista-sacudida,
  .ce-resumen,
  .ce-modal-caja,
  .ce-aviso-anim {
    animation: none;
  }
}