/* ============================================================================
   Sistema de Votaciones SST — Estilos (Mobile-First)
   Paleta corporativa definida en variables CSS.
   ============================================================================ */

:root {
  --verde-principal: #B9D800;
  --verde-principal-oscuro: #9AB300;
  --gris-base-1: #888C8D;
  --gris-base-2: #909C9C;
  --secundario-1: #A0A776;
  --secundario-2: #50523F;
  --texto: #000000;
  --blanco: #FFFFFF;
  --fondo: #F5F6F2;
  --peligro: #C0392B;
  --exito: #4F7D1F;

  --radio-sm: 8px;
  --radio-md: 14px;
  --radio-lg: 20px;
  --sombra: 0 2px 12px rgba(0, 0, 0, 0.08);
  --sombra-fuerte: 0 8px 28px rgba(0, 0, 0, 0.16);
  --transicion: 0.22s ease;
  --espaciado: 1rem;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: var(--fondo);
  color: var(--texto);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  color: var(--secundario-2);
  margin: 0 0 0.5rem;
}

p {
  margin: 0 0 0.75rem;
}

button {
  font-family: inherit;
}

/* ---------------------------------------------------------------------------
   Cabecera
   --------------------------------------------------------------------------- */
.cabecera {
  background: linear-gradient(135deg, var(--verde-principal), var(--verde-principal-oscuro));
  padding: 1rem;
  box-shadow: var(--sombra);
  position: sticky;
  top: 0;
  z-index: 10;
}

.cabecera__marca {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  max-width: 960px;
  margin: 0 auto;
}

.cabecera__logo {
  font-size: 1.8rem;
}

.cabecera__titulo {
  font-weight: 700;
  font-size: 1.1rem;
  margin: 0;
  color: var(--texto);
}

.cabecera__subtitulo {
  font-size: 0.8rem;
  margin: 0;
  color: var(--secundario-2);
}

/* ---------------------------------------------------------------------------
   Layout general
   --------------------------------------------------------------------------- */
.contenedor {
  max-width: 960px;
  margin: 0 auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-height: calc(100vh - 140px);
}

.vista {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  animation: aparecer var(--transicion);
}

.oculto {
  display: none !important;
}

@keyframes aparecer {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.pie {
  text-align: center;
  padding: 1rem;
  font-size: 0.75rem;
  color: var(--gris-base-1);
}

/* ---------------------------------------------------------------------------
   Tarjetas
   --------------------------------------------------------------------------- */
.tarjeta {
  background: var(--blanco);
  border-radius: var(--radio-lg);
  padding: 1.25rem;
  box-shadow: var(--sombra);
}

.tarjeta--centrada {
  text-align: center;
  align-items: center;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.tarjeta--bienvenida {
  border-left: 6px solid var(--verde-principal);
}

.texto-atenuado {
  color: var(--gris-base-1);
  font-size: 0.9rem;
}

/* ---------------------------------------------------------------------------
   Spinner
   --------------------------------------------------------------------------- */
.spinner {
  width: 42px;
  height: 42px;
  border: 4px solid var(--gris-base-2);
  border-top-color: var(--verde-principal);
  border-radius: 50%;
  animation: girar 0.8s linear infinite;
}

@keyframes girar {
  to { transform: rotate(360deg); }
}

/* ---------------------------------------------------------------------------
   Cuenta regresiva
   --------------------------------------------------------------------------- */
.fecha-destacada {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--secundario-2);
}

.cuenta-regresiva {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 0.5rem;
}

.cuenta-regresiva__bloque {
  background: var(--fondo);
  border-radius: var(--radio-md);
  padding: 0.75rem 1rem;
  min-width: 64px;
  text-align: center;
}

.cuenta-regresiva__bloque span {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--verde-principal-oscuro);
}

.cuenta-regresiva__bloque small {
  color: var(--gris-base-1);
  font-size: 0.7rem;
  text-transform: uppercase;
}

/* ---------------------------------------------------------------------------
   Formularios
   --------------------------------------------------------------------------- */
.campo {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 1rem;
}

.campo label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--secundario-2);
}

.campo input[type="text"] {
  padding: 0.75rem 0.9rem;
  border: 2px solid var(--gris-base-2);
  border-radius: var(--radio-md);
  font-size: 1rem;
  transition: border-color var(--transicion), box-shadow var(--transicion);
}

.campo input[type="text"]:focus {
  outline: none;
  border-color: var(--verde-principal-oscuro);
  box-shadow: 0 0 0 3px rgba(185, 216, 0, 0.25);
}

.campo input.invalido {
  border-color: var(--peligro);
}

.campo__error {
  color: var(--peligro);
  font-size: 0.8rem;
  min-height: 1em;
}

.mensaje-formulario {
  min-height: 1.2em;
  font-size: 0.9rem;
  font-weight: 600;
}

.mensaje-formulario.exito { color: var(--exito); }
.mensaje-formulario.peligro { color: var(--peligro); }

/* ---------------------------------------------------------------------------
   Botones
   --------------------------------------------------------------------------- */
.boton {
  border: none;
  border-radius: var(--radio-md);
  padding: 0.85rem 1.25rem;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform var(--transicion), box-shadow var(--transicion), opacity var(--transicion);
  width: 100%;
}

.boton:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.boton--primario {
  background: var(--verde-principal);
  color: var(--texto);
}

.boton--primario:not(:disabled):hover {
  transform: translateY(-2px);
  box-shadow: var(--sombra-fuerte);
}

.boton--secundario {
  background: var(--gris-base-2);
  color: var(--blanco);
}

.boton--secundario:not(:disabled):hover {
  transform: translateY(-2px);
}

/* ---------------------------------------------------------------------------
   Candidatos (tarjetón)
   --------------------------------------------------------------------------- */
.candidatos {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.6rem;
  margin: 1rem 0;
}

.candidato {
  position: relative;
}

.candidato input[type="radio"] {
  position: absolute;
  opacity: 0;
  inset: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
  margin: 0;
}

.candidato label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border: 2px solid var(--gris-base-2);
  border-radius: var(--radio-md);
  padding: 0.85rem;
  cursor: pointer;
  transition: all var(--transicion);
}

.candidato input[type="radio"]:checked + label {
  border-color: var(--verde-principal-oscuro);
  background: rgba(185, 216, 0, 0.15);
}

.candidato input[type="radio"]:focus-visible + label {
  outline: 2px solid var(--verde-principal-oscuro);
  outline-offset: 2px;
}

.candidato__marca {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--gris-base-1);
  flex-shrink: 0;
}

.candidato input[type="radio"]:checked + label .candidato__marca {
  background: var(--verde-principal-oscuro);
  border-color: var(--verde-principal-oscuro);
}

.estado-votado {
  background: rgba(79, 125, 31, 0.12);
  color: var(--exito);
  border-radius: var(--radio-md);
  padding: 0.85rem;
  font-weight: 600;
  text-align: center;
}

.boton-link {
  background: none;
  border: none;
  color: var(--secundario-2);
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: underline;
  cursor: pointer;
  padding: 0.2rem 0.4rem;
}

.boton-link:hover {
  color: var(--verde-principal-oscuro);
}

/* ---------------------------------------------------------------------------
   Vista de agradecimiento / error
   --------------------------------------------------------------------------- */
.icono-exito, .icono-error {
  font-size: 2.5rem;
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.icono-exito {
  background: rgba(79, 125, 31, 0.15);
  color: var(--exito);
}

.icono-error {
  background: rgba(192, 57, 43, 0.15);
  color: var(--peligro);
}

/* ---------------------------------------------------------------------------
   Resultados
   --------------------------------------------------------------------------- */
.estadisticas {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.estadistica {
  background: var(--fondo);
  border-radius: var(--radio-md);
  padding: 0.85rem;
  text-align: center;
}

.estadistica strong {
  display: block;
  font-size: 1.4rem;
  color: var(--verde-principal-oscuro);
}

.estadistica span {
  font-size: 0.75rem;
  color: var(--gris-base-1);
}

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

.ganador {
  font-weight: 700;
  color: var(--secundario-2);
  background: rgba(185, 216, 0, 0.2);
  padding: 0.6rem;
  border-radius: var(--radio-sm);
  text-align: center;
}

.grafico-dona {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  margin: 1rem auto;
  position: relative;
}

.grafico-dona::after {
  content: '';
  position: absolute;
  inset: 24%;
  background: var(--blanco);
  border-radius: 50%;
}

.grafico-barras {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.barra-fila {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.barra-fila__etiqueta {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  font-weight: 600;
}

.barra-fila__pista {
  background: var(--fondo);
  border-radius: 999px;
  height: 12px;
  overflow: hidden;
}

.barra-fila__relleno {
  height: 100%;
  background: var(--verde-principal);
  border-radius: 999px;
  transition: width 0.6s ease;
}

/* ---------------------------------------------------------------------------
   Modal
   --------------------------------------------------------------------------- */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 100;
  animation: aparecer var(--transicion);
}

.modal__contenido {
  background: var(--blanco);
  border-radius: var(--radio-lg);
  padding: 1.5rem;
  max-width: 420px;
  width: 100%;
  box-shadow: var(--sombra-fuerte);
}

.modal__acciones {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
}

.modal__acciones .boton {
  width: auto;
  flex: 1;
}

/* ---------------------------------------------------------------------------
   Breakpoints: Tablet / Escritorio
   --------------------------------------------------------------------------- */
@media (min-width: 600px) {
  .contenedor {
    padding: 1.5rem;
  }

  .candidatos {
    grid-template-columns: 1fr 1fr;
  }

  .modal__acciones .boton {
    width: auto;
  }

  .boton {
    width: auto;
  }

  .form-ancho-fijo {
    max-width: 420px;
  }
}

@media (min-width: 900px) {
  .grid-resultados {
    grid-template-columns: 1fr 1fr;
  }

  .cabecera__titulo {
    font-size: 1.3rem;
  }
}