.banner-aviso {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  padding: 40px 24px;
  background: #0a0a0a;
  color: #fff;
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  text-align: center;
  z-index: 99999;
  overflow: hidden;
}

.banner-aviso .sb-bandera {
  font-size: clamp(5rem, 18vw, 11rem);
  line-height: 1;
  filter: drop-shadow(0 6px 24px rgba(0, 0, 0, 0.5));
}

.banner-aviso .sb-bandera .fi {
  display: inline-block;
  width: 1.6em;
  height: 1.18em;
  border-radius: 16px;
  box-shadow:
    0 10px 28px rgba(0, 0, 0, 0.55),
    inset 0 0 0 1px rgba(255, 255, 255, 0.22);
  background-size: cover;
  background-position: center;
  vertical-align: middle;
}

.banner-aviso-texto {
  font-size: clamp(1.4rem, 4.5vw, 2.4rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  max-width: 22ch;
  margin: 0;
  line-height: 1.25;
}

.banner-aviso-cerrar {
  background: #d0ff3a;
  color: #0a0a0a;
  border: 0;
  padding: 16px 56px;
  border-radius: 999px;
  font-weight: 800;
  font-family: inherit;
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease;
  box-shadow: 0 8px 28px rgba(208, 255, 58, 0.25);
}

.banner-aviso-cerrar:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 36px rgba(208, 255, 58, 0.45);
}

.banner-aviso-cerrar:active {
  transform: translateY(0);
}

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

body.banner-aviso-activo {
  overflow: hidden;
}