:root {
  --color-fondo: #dff4ff;
  --color-fondo-secundario: #f4fbff;
  --color-marco: #0a4f88;
  --color-marco-fuerte: #083b66;
  --color-acento: #40b8ff;
  --color-acento-suave: #bce9ff;
  --color-texto: #12324a;
  --color-error: #c84040;
  --color-exito: #117a64;
  --radio: 18px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Verdana, sans-serif;
  background:
    radial-gradient(circle at top, rgba(64, 184, 255, 0.35), transparent 34%),
    linear-gradient(180deg, #edf9ff 0%, var(--color-fondo) 50%, #cfeeff 100%);
  color: var(--color-texto);
}

.cabecera {
  background: linear-gradient(135deg, var(--color-marco-fuerte), var(--color-marco), #1482c7);
  color: #fff;
  padding: 18px 12px 20px;
  box-shadow: 0 16px 40px rgba(8, 59, 102, 0.22);
}

.cabecera-marca {
  max-width: 980px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  text-align: left;
}

.logo-marco {
  background: rgba(255, 255, 255, 0.14);
  padding: 10px 12px;
  border-radius: 20px;
  backdrop-filter: blur(4px);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.14);
}

.logo-empresa {
  display: block;
  width: 168px;
  max-width: 100%;
  height: auto;
}

.cabecera h1 {
  margin: 0;
  font-size: clamp(1.3rem, 3.8vw, 2rem);
  letter-spacing: 0.04em;
}

.cabecera p {
  margin: 4px 0 0;
  color: #d6f3ff;
  font-size: 0.95rem;
}

.contenedor {
  max-width: 900px;
  margin: 0 auto;
  padding: 20px 14px 60px;
}

.pantalla-centrada {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 24px;
}

/* .pantalla-centrada usa display:flex, que sin esto anularia el atributo hidden */
.pantalla[hidden] {
  display: none;
}

.botonera-idioma {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

.boton {
  border: none;
  border-radius: var(--radio);
  padding: 14px 22px;
  font-size: 1rem;
  cursor: pointer;
  background: linear-gradient(135deg, #1294df, var(--color-marco));
  color: #fff;
  text-decoration: none;
  display: inline-block;
  box-shadow: 0 10px 22px rgba(10, 79, 136, 0.18);
}

.boton:active {
  opacity: 0.85;
}

.boton:hover {
  filter: brightness(1.03);
}

.boton-grande {
  font-size: 1.1rem;
  padding: 18px 28px;
  min-width: 200px;
}

.boton-secundario {
  background: #ffffff;
  color: var(--color-marco);
  border: 2px solid var(--color-marco);
  box-shadow: none;
}

.boton-firmar {
  background: linear-gradient(135deg, #36c4ff, #0d71b5);
  width: 100%;
  margin-top: 12px;
}

.tarjeta {
  background: rgba(255, 255, 255, 0.92);
  border-radius: var(--radio);
  padding: 24px;
  box-shadow: 0 18px 45px rgba(10, 79, 136, 0.12);
  border: 1px solid rgba(64, 184, 255, 0.18);
}

.hero-inicio {
  max-width: 620px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(227, 246, 255, 0.94));
  border: 1px solid rgba(64, 184, 255, 0.22);
  border-radius: 24px;
  padding: 24px 20px;
  box-shadow: 0 16px 44px rgba(10, 79, 136, 0.12);
}

.hero-inicio h2 {
  margin: 0 0 10px;
  font-size: clamp(1.35rem, 5vw, 2rem);
}

.hero-inicio p {
  margin: 0;
  font-size: 1rem;
  line-height: 1.5;
  color: #28506f;
}

.encabezado-reglamento {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  flex-wrap: wrap;
  border-bottom: 2px solid var(--color-acento);
  padding-bottom: 12px;
  margin-bottom: 12px;
}

.encabezado-reglamento h2 {
  margin: 0;
  font-size: 1.3rem;
}

.encabezado-reglamento p {
  margin: 2px 0 0;
  color: #4a7190;
}

.titulo-documento {
  text-align: center;
  margin: 8px 0 20px;
}

.secciones .seccion {
  margin-bottom: 16px;
}

.secciones h3 {
  margin: 0 0 4px;
  font-size: 1rem;
  color: var(--color-marco);
}

.secciones p {
  margin: 0;
  white-space: pre-line;
  line-height: 1.4;
  font-size: 0.95rem;
}

.titulo-declaracion {
  margin-top: 24px;
  border-top: 1px solid #c7e8f7;
  padding-top: 16px;
}

.texto-declaracion {
  font-size: 0.9rem;
  line-height: 1.5;
  background: var(--color-fondo-secundario);
  padding: 12px;
  border-radius: var(--radio);
  border: 1px solid #d3eefb;
}

.formulario {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.campo {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.campo[hidden] {
  display: none !important;
}

.campo label {
  font-weight: 600;
  font-size: 0.9rem;
}

.campo input[type='text'] {
  padding: 14px 15px;
  font-size: 1rem;
  border: 1px solid #9fd6f1;
  border-radius: var(--radio);
  background: #fff;
}

.campo input[type='text']:focus,
.campo-filtro input:focus,
.campo input[type='password']:focus {
  outline: none;
  border-color: #3bb6ff;
  box-shadow: 0 0 0 4px rgba(64, 184, 255, 0.16);
}

.login-box {
  width: min(100%, 420px);
}

.formulario-login {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 18px;
}

.campo-login {
  text-align: left;
}

.campo input[type='password'] {
  padding: 14px 15px;
  font-size: 1rem;
  border: 1px solid #9fd6f1;
  border-radius: var(--radio);
  background: #fff;
}

.campo-checkbox {
  flex-direction: row;
  align-items: center;
  gap: 10px;
}

.campo-checkbox input {
  width: 22px;
  height: 22px;
}

.label-firma {
  margin-top: 8px;
}

.canvas-firma {
  width: 100%;
  height: 220px;
  border: 2px dashed var(--color-marco);
  border-radius: var(--radio);
  background: #ffffff;
  touch-action: none;
}

.mensaje-error {
  color: #ffffff;
  background: var(--color-error);
  padding: 10px 14px;
  border-radius: var(--radio);
  font-size: 0.9rem;
}

.tarjeta-exito h2 {
  color: var(--color-exito);
}

.botonera-exito {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 16px;
}

.pie {
  text-align: center;
  padding: 20px;
  font-size: 0.85rem;
}

.pie a {
  color: var(--color-marco);
  font-weight: 700;
}

.tabla-scroll {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.tabla-documentos {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.tabla-documentos th,
.tabla-documentos td {
  border-bottom: 1px solid #e0d6c5;
  padding: 10px 8px;
  text-align: left;
}

.tabla-documentos th {
  background: #e3f6ff;
}

.enlace-pdf {
  color: var(--color-marco);
  font-weight: 600;
}

.boton-eliminar {
  margin-left: 10px;
  border: none;
  border-radius: 6px;
  padding: 6px 12px;
  background: var(--color-error);
  color: #fff;
  cursor: pointer;
  font-size: 0.85rem;
}

.boton-eliminar:active {
  opacity: 0.85;
}

.boton-eliminar:disabled {
  background: #c9a3a0;
  cursor: not-allowed;
}

.barra-filtros {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: flex-end;
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid #c7e8f7;
}

.campo-filtro {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.campo-filtro label {
  font-size: 0.8rem;
  font-weight: 600;
}

.campo-filtro input {
  padding: 8px 10px;
  border: 1px solid #9fd6f1;
  border-radius: 8px;
  font-size: 0.9rem;
}

.barra-acciones {
  margin-bottom: 12px;
}

.barra-paginacion {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 16px;
  font-size: 0.9rem;
  flex-wrap: wrap;
}

@media (min-width: 640px) {
  .campo {
    max-width: 480px;
  }
}

@media (max-width: 640px) {
  .cabecera {
    padding: 14px 12px 18px;
  }

  .cabecera-marca {
    flex-direction: column;
    text-align: center;
    gap: 12px;
  }

  .logo-empresa {
    width: 140px;
  }

  .contenedor {
    padding: 14px 10px 36px;
  }

  .pantalla-centrada {
    min-height: auto;
    padding-top: 10px;
    gap: 18px;
  }

  .tarjeta {
    padding: 18px 14px;
    border-radius: 20px;
  }

  .boton-grande,
  .boton,
  .boton-secundario {
    width: 100%;
    min-width: 0;
  }

  .campo,
  .campo-filtro {
    width: 100%;
    max-width: none;
  }

  .campo-checkbox {
    align-items: flex-start;
  }

  .campo-checkbox label {
    line-height: 1.45;
  }

  .canvas-firma {
    height: 180px;
  }

  .barra-filtros {
    gap: 12px;
  }

  .barra-acciones .boton-eliminar {
    margin-left: 0;
    width: 100%;
    padding: 12px 16px;
    font-size: 0.95rem;
  }

  .botonera-exito {
    gap: 10px;
  }

  .pie {
    padding: 14px 14px 24px;
  }
}