:root {
  --color-fondo-1: #071016;
  --color-fondo-2: #10242d;
  --color-superficie: rgba(18, 38, 46, 0.88);
  --color-texto: #eef6f8;
  --color-texto-suave: #9db4bd;
  --color-acento: #2fbfae;
  --color-acento-suave: #1a7f74;
  --color-alerta: #e3a23c;
  --color-riesgo: #e35d6a;
  --color-seguro: #3dbe86;
  --color-borde: rgba(155, 190, 198, 0.22);
  --fuente-marca: "Newsreader", Georgia, serif;
  --fuente-cuerpo: "Manrope", "Segoe UI", sans-serif;
  --radio: 16px;
  --sombra: 0 18px 50px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--fuente-cuerpo);
  color: var(--color-texto);
  background: var(--color-fondo-1);
  position: relative;
}

.fondo-atmosfera {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 70% 45% at 15% 0%, rgba(47, 191, 174, 0.18), transparent 55%),
    radial-gradient(ellipse 55% 40% at 90% 20%, rgba(56, 120, 150, 0.16), transparent 50%),
    linear-gradient(165deg, #071016 0%, #0d1c24 45%, #10242d 100%);
}

.barra-superior {
  border-bottom: 1px solid var(--color-borde);
  backdrop-filter: blur(10px);
  background: rgba(7, 16, 22, 0.55);
}

.barra-interior {
  width: min(980px, 92vw);
  margin: 0 auto;
  padding: 0.95rem 0;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.marca {
  margin: 0;
  font-family: var(--fuente-marca);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.insignia-beta {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  border: 1px solid rgba(47, 191, 174, 0.45);
  color: var(--color-acento);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.insignia-profesional {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  background: rgba(47, 191, 174, 0.14);
  color: var(--color-acento);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.aviso-audiencia {
  margin: 1rem 0 0;
  max-width: 60ch;
  padding: 0.7rem 0.9rem;
  border-left: 3px solid var(--color-acento);
  border-radius: 0 10px 10px 0;
  background: rgba(47, 191, 174, 0.08);
  color: var(--color-texto-suave);
  font-size: 0.95rem;
  line-height: 1.5;
}

.aviso-audiencia strong {
  color: var(--color-texto);
}

.escenario {
  width: min(980px, 92vw);
  margin: 0 auto;
  padding: 2.5rem 0 3rem;
}

.hero {
  padding: 2.5rem 0 2rem;
  animation: entrar 0.7s ease both;
}

.marca-hero {
  margin: 0 0 0.75rem;
  font-family: var(--fuente-marca);
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1;
}

.hero h1 {
  margin: 0;
  max-width: 16ch;
  font-size: clamp(1.35rem, 2.6vw, 1.85rem);
  font-weight: 600;
  line-height: 1.25;
}

.lead {
  margin: 1rem 0 0;
  max-width: 42ch;
  color: var(--color-texto-suave);
  font-size: 1.05rem;
  line-height: 1.55;
}

.acciones-hero {
  margin-top: 1.5rem;
}

.trazo-ecg {
  display: block;
  width: 100%;
  height: 88px;
  margin-top: 2rem;
  opacity: 0.75;
}

.onda {
  fill: none;
  stroke: var(--color-acento);
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 1200;
  stroke-dashoffset: 1200;
  animation: dibujar 2.2s ease forwards 0.2s;
}

.panel-analisis {
  margin-top: 1rem;
  padding: 1.5rem;
  border: 1px solid var(--color-borde);
  border-radius: var(--radio);
  background: var(--color-superficie);
  box-shadow: var(--sombra);
  animation: entrar 0.8s ease both 0.12s;
}

.panel-cabecera h2 {
  margin: 0 0 0.5rem;
  font-size: 1.25rem;
}

.panel-cabecera p {
  margin: 0 0 1.25rem;
  color: var(--color-texto-suave);
  line-height: 1.5;
}

.formulario {
  display: grid;
  gap: 1rem;
}

.zona-carga {
  position: relative;
  display: grid;
  place-items: center;
  gap: 0.35rem;
  min-height: 180px;
  padding: 1.5rem;
  border: 1.5px dashed rgba(47, 191, 174, 0.45);
  border-radius: 14px;
  background: rgba(7, 18, 24, 0.45);
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.zona-carga:hover,
.zona-carga.arrastrando {
  border-color: var(--color-acento);
  background: rgba(47, 191, 174, 0.08);
  transform: translateY(-1px);
}

.zona-carga input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.zona-titulo {
  font-weight: 700;
  font-size: 1.05rem;
}

.zona-detalle,
.nombre-archivo {
  color: var(--color-texto-suave);
  font-size: 0.92rem;
}

.nombre-zona {
  cursor: help;
}

.nombre-archivo {
  margin-top: 0.55rem;
  color: var(--color-acento);
  font-weight: 600;
}

.opciones-avanzadas {
  color: var(--color-texto-suave);
  font-size: 0.92rem;
}

.opciones-avanzadas summary {
  cursor: pointer;
  font-weight: 600;
}

.opciones-avanzadas .campo-frecuencia {
  margin-top: 0.7rem;
}

.lista-advertencias {
  margin: 0 0 1.25rem;
  padding: 0.8rem 1rem 0.8rem 2rem;
  border-radius: 10px;
  border: 1px solid rgba(227, 162, 60, 0.45);
  background: rgba(227, 162, 60, 0.1);
  color: var(--color-alerta);
  line-height: 1.5;
  font-size: 0.92rem;
}

.lista-advertencias li + li {
  margin-top: 0.35rem;
}

.campo-frecuencia {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  color: var(--color-texto-suave);
  font-size: 0.92rem;
}

.campo-frecuencia > span {
  flex: 1 1 280px;
  line-height: 1.45;
}

.campo-frecuencia select {
  min-width: 220px;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--color-borde);
  border-radius: 10px;
  background: rgba(7, 18, 24, 0.65);
  color: var(--color-texto);
  font: inherit;
}

.fila-acciones {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.boton {
  appearance: none;
  border: 0;
  border-radius: 10px;
  padding: 0.8rem 1.25rem;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.15s ease, filter 0.15s ease, opacity 0.15s ease;
}

.boton:hover {
  filter: brightness(1.05);
  transform: translateY(-1px);
}

.boton:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

.boton-principal {
  background: var(--color-acento);
  color: #04221e;
}

.boton-secundario {
  background: transparent;
  color: var(--color-texto);
  border: 1px solid var(--color-borde);
}

.estado-conexion {
  margin-top: 1rem;
  color: var(--color-texto-suave);
  font-size: 0.9rem;
}

.estado-conexion.ok {
  color: var(--color-seguro);
}

.estado-conexion.error {
  color: var(--color-riesgo);
}

.tarjeta-resultado {
  margin-top: 1.25rem;
  padding: 1.15rem 1.2rem;
  border-radius: 14px;
  border: 1px solid var(--color-borde);
  background: rgba(8, 18, 24, 0.55);
  animation: entrar 0.45s ease both;
}

.tarjeta-resultado.oculto {
  display: none;
}

.oculto {
  display: none !important;
}

.tarjeta-resultado h4,
.panel-grafico h4 {
  margin: 0 0 0.4rem;
  font-size: 0.98rem;
}

.texto-apoyo {
  margin: 0.5rem 0 0;
  color: var(--color-texto-suave);
  line-height: 1.55;
  font-size: 0.93rem;
}

.texto-apoyo.pequeno {
  font-size: 0.84rem;
  margin-top: 0.3rem;
}

.veredicto {
  --color-veredicto: var(--color-alerta);
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.1rem 1.15rem;
  margin-bottom: 1.25rem;
  border-radius: 12px;
  border: 1px solid color-mix(in srgb, var(--color-veredicto) 45%, transparent);
  background: color-mix(in srgb, var(--color-veredicto) 12%, transparent);
}

.veredicto.iam_detectado {
  --color-veredicto: var(--color-riesgo);
}

.veredicto.sin_iam {
  --color-veredicto: var(--color-seguro);
}

.icono-veredicto {
  flex: none;
  display: grid;
  place-items: center;
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 50%;
  background: var(--color-veredicto);
  color: #071016;
  font-weight: 800;
  font-size: 1.35rem;
}

.icono-veredicto::before {
  content: "?";
}

.veredicto.iam_detectado .icono-veredicto::before {
  content: "!";
}

.veredicto.sin_iam .icono-veredicto::before {
  content: "✓";
}

.veredicto-antetitulo {
  margin: 0;
  color: var(--color-texto-suave);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.titulo-veredicto {
  margin: 0.2rem 0 0;
  font-size: clamp(1.15rem, 2.4vw, 1.4rem);
  line-height: 1.3;
  color: var(--color-veredicto);
}

.explicacion-veredicto {
  margin: 0.45rem 0 0;
  line-height: 1.5;
}

.bloque-probabilidad {
  margin-bottom: 1.25rem;
}

.fila-probabilidad {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
  color: var(--color-texto-suave);
  font-size: 0.93rem;
}

.fila-probabilidad strong {
  color: var(--color-texto);
  font-size: 1.6rem;
}

.escala-probabilidad {
  position: relative;
  height: 14px;
  margin: 2rem 0 0.45rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
}

.tramo {
  position: absolute;
  top: 0;
  bottom: 0;
}

.tramo-sin-iam {
  left: 0;
  border-radius: 999px 0 0 999px;
  background: rgba(61, 190, 134, 0.45);
}

.tramo-iam {
  border-radius: 0 999px 999px 0;
  background: rgba(227, 93, 106, 0.5);
}

.marcador-umbral {
  position: absolute;
  top: -6px;
  bottom: -6px;
  width: 2px;
  background: var(--color-texto);
  transform: translateX(-1px);
}

.texto-umbral {
  position: absolute;
  bottom: calc(100% + 4px);
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-texto);
}

.marcador-paciente {
  position: absolute;
  top: 50%;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 3px solid var(--color-texto);
  background: var(--color-fondo-1);
  transform: translate(-50%, -50%);
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.35);
  transition: left 0.5s ease;
}

.leyenda-escala {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: var(--color-texto-suave);
  font-size: 0.78rem;
}

.certeza-alta {
  color: var(--color-seguro);
}

.certeza-media {
  color: var(--color-alerta);
}

.certeza-baja {
  color: var(--color-riesgo);
}

.bloque-comparacion,
.bloque-fiabilidad {
  margin-top: 1.1rem;
  padding: 0.9rem 1rem;
  border-radius: 10px;
  border: 1px solid var(--color-borde);
  background: rgba(255, 255, 255, 0.03);
}

.bloque-comparacion p {
  margin: 0;
  line-height: 1.5;
}

.bloque-comparacion .rotulo {
  color: var(--color-texto-suave);
  margin-right: 0.35rem;
}

.valor-acierto {
  margin-top: 0.4rem !important;
  font-weight: 600;
}

.valor-acierto.acierto {
  color: var(--color-seguro);
}

.valor-acierto.error {
  color: var(--color-alerta);
}

.bloque-fiabilidad summary {
  cursor: pointer;
  font-weight: 700;
}

.bloque-fiabilidad p,
.bloque-fiabilidad li {
  color: var(--color-texto-suave);
  line-height: 1.55;
  font-size: 0.93rem;
}

.bloque-fiabilidad strong {
  color: var(--color-texto);
}

.bloque-fiabilidad ul {
  margin: 0.4rem 0;
  padding-left: 1.2rem;
}

.leyenda-calor {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0.8rem 0 0.2rem;
  color: var(--color-texto-suave);
  font-size: 0.8rem;
}

.leyenda-calor > span:not(.gradiente-calor) {
  white-space: nowrap;
}

.gradiente-calor {
  flex: 0 1 180px;
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(40, 120, 90, 0.2), rgba(130, 80, 70, 0.4), rgba(220, 40, 50, 0.6));
}

.bloque-zonas,
.bloque-regiones {
  margin-top: 1.2rem;
}

.nota-limitacion {
  margin: 1.1rem 0 0;
  color: var(--color-texto-suave);
  font-size: 0.82rem;
  font-style: italic;
  line-height: 1.5;
}

.rejilla-metricas {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem 1.2rem;
}

.rejilla-metricas dt {
  color: var(--color-texto-suave);
  font-size: 0.8rem;
}

.rejilla-metricas dd {
  margin: 0.2rem 0 0;
  font-weight: 700;
  word-break: break-word;
}

.panel-grafico {
  margin-top: 1.25rem;
  padding: 1.15rem 1.2rem;
  border-radius: 14px;
  border: 1px solid var(--color-borde);
  background: rgba(8, 18, 24, 0.55);
  animation: entrar 0.45s ease both;
}

.panel-grafico.oculto {
  display: none;
}

.panel-grafico-cabecera h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
}

.detalle-grafico {
  margin: 0 0 0.9rem;
  color: var(--color-texto-suave);
  font-size: 0.9rem;
  line-height: 1.45;
}

.lienzo-ecg {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 10px;
  border: 1px solid var(--color-borde);
  background: rgba(4, 12, 16, 0.7);
}

.reparto-zonas {
  display: grid;
  gap: 0.4rem;
  margin-top: 0.9rem;
}

.reparto-zonas:empty {
  display: none;
}

.fila-zona {
  display: grid;
  grid-template-columns: minmax(130px, 180px) 1fr 48px;
  align-items: center;
  gap: 0.6rem;
  color: var(--color-texto-suave);
  font-size: 0.88rem;
}

.barra-zona {
  height: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  overflow: hidden;
}

.barra-zona span {
  display: block;
  height: 100%;
  background: var(--color-riesgo);
}

.descripcion-zona {
  grid-column: 1 / -1;
  margin: -0.15rem 0 0.35rem;
  font-size: 0.8rem;
  line-height: 1.45;
  opacity: 0.85;
}

.valor-zona {
  text-align: right;
  color: var(--color-texto);
  font-weight: 600;
}

.lista-regiones {
  list-style: none;
  margin: 0.9rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.45rem;
}

.lista-regiones li {
  padding: 0.55rem 0.7rem;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-borde);
  color: var(--color-texto-suave);
  font-size: 0.88rem;
  line-height: 1.4;
}

.lista-regiones strong {
  color: var(--color-texto);
}

.panel-historial {
  margin-top: 1.5rem;
}

.panel-historial h3 {
  margin: 0 0 0.7rem;
}

.contenedor-tabla {
  overflow-x: auto;
  scrollbar-color: var(--color-acento-suave) transparent;
}

.tabla-historial {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.tabla-historial th,
.tabla-historial td {
  padding: 0.5rem 0.6rem;
  border-bottom: 1px solid var(--color-borde);
  text-align: left;
  white-space: nowrap;
}

.tabla-historial th {
  color: var(--color-texto-suave);
  font-weight: 600;
}

.tabla-historial td.iam_detectado {
  color: var(--color-riesgo);
  font-weight: 700;
}

.tabla-historial td.sin_iam {
  color: var(--color-seguro);
  font-weight: 700;
}

.pie {
  width: min(980px, 92vw);
  margin: 0 auto;
  padding: 0 0 2.5rem;
  color: var(--color-texto-suave);
  font-size: 0.9rem;
  line-height: 1.5;
}

.pie-meta {
  margin-top: 0.4rem;
  opacity: 0.8;
  font-size: 0.82rem;
}

@keyframes entrar {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes dibujar {
  to {
    stroke-dashoffset: 0;
  }
}

/* Vista oculta de la red neuronal (se abre escribiendo «cerebro») */
body.sin-desplazamiento {
  overflow: hidden;
}

.red-neuronal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: #03060d;
  animation: aparecer 0.6s ease both;
}

.red-neuronal-lienzo {
  display: block;
  cursor: grab;
  touch-action: none;
}

.red-neuronal-lienzo:active {
  cursor: grabbing;
}

.red-neuronal-panel {
  position: absolute;
  top: 1.2rem;
  left: 1.2rem;
  width: min(300px, calc(100vw - 2.4rem));
  max-height: calc(100vh - 2.4rem);
  overflow-y: auto;
  padding: 1rem 1.1rem;
  border: 1px solid rgba(127, 156, 255, 0.22);
  border-radius: var(--radio);
  background: rgba(6, 12, 26, 0.72);
  backdrop-filter: blur(8px);
  font-size: 0.82rem;
}

.red-neuronal-titulo {
  margin: 0;
  font-family: var(--fuente-marca);
  font-size: 1.35rem;
}

.red-neuronal-subtitulo,
.red-neuronal-cifras {
  margin: 0.25rem 0 0;
  color: var(--color-texto-suave);
}

.red-neuronal-seccion {
  margin: 1rem 0 0.45rem;
  color: var(--color-texto-suave);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.red-neuronal-caso {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  width: 100%;
  margin-bottom: 0.35rem;
  padding: 0.45rem 0.6rem;
  border: 1px solid transparent;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.red-neuronal-caso:hover,
.red-neuronal-caso.activo {
  border-color: rgba(127, 156, 255, 0.5);
  background: rgba(127, 156, 255, 0.12);
}

.red-neuronal-caso-titulo {
  font-weight: 600;
}

.red-neuronal-caso-detalle {
  color: var(--color-texto-suave);
  font-size: 0.74rem;
}

.red-neuronal-capas {
  margin: 0;
  padding: 0;
  list-style: none;
}

.red-neuronal-capa {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.55rem;
  padding: 0.28rem 0.4rem;
  border-radius: 8px;
  cursor: pointer;
}

.red-neuronal-capa:hover,
.red-neuronal-capa.activa {
  background: rgba(255, 255, 255, 0.07);
}

.red-neuronal-punto {
  width: 0.6rem;
  height: 0.6rem;
  border-radius: 50%;
  box-shadow: 0 0 8px currentColor;
}

.red-neuronal-cuenta {
  color: var(--color-texto-suave);
  font-variant-numeric: tabular-nums;
}

.red-neuronal-leyenda {
  position: absolute;
  right: 1.2rem;
  bottom: 1rem;
  left: 1.2rem;
  margin: 0;
  color: rgba(238, 246, 248, 0.5);
  font-size: 0.75rem;
  text-align: right;
  pointer-events: none;
}

.red-neuronal-cerrar {
  position: absolute;
  top: 1rem;
  right: 1.2rem;
  width: 2.4rem;
  height: 2.4rem;
  border: 1px solid rgba(127, 156, 255, 0.3);
  border-radius: 50%;
  background: rgba(6, 12, 26, 0.7);
  color: var(--color-texto);
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
}

.red-neuronal-etiqueta {
  position: absolute;
  padding: 0.35rem 0.6rem;
  border: 1px solid rgba(127, 156, 255, 0.35);
  border-radius: 8px;
  background: rgba(6, 12, 26, 0.9);
  font-size: 0.78rem;
  white-space: nowrap;
  pointer-events: none;
}

@keyframes aparecer {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@media (max-width: 640px) {
  .red-neuronal-panel {
    max-height: 42vh;
  }

  .hero {
    padding-top: 1.5rem;
  }

  .rejilla-metricas {
    grid-template-columns: 1fr;
  }

  .panel-analisis {
    padding: 1.1rem;
  }
}