body {
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: 24px 16px;
  overflow-x: hidden;
}

.fondo-hilo {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.fondo-hilo path {
  fill: none;
  stroke: var(--hilo);
  stroke-width: 3;
  stroke-linecap: round;
  vector-effect: non-scaling-stroke;
  opacity: 0.85;
}

.fondo-hilo .hebra {
  stroke: var(--hilo-suave);
  stroke-width: 1.2;
  stroke-dasharray: 5 7;
  opacity: 1;
}

.entrada-tarjeta {
  position: relative;
  width: min(100%, 400px);
  padding: 40px 32px 32px;
  border-radius: 22px;
  background: var(--blanco);
  box-shadow: var(--sombra-2);
}

.marca {
  font-size: clamp(3rem, 12vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--tinta);
}

.marca-y {
  font-family: var(--f-mano);
  font-weight: 400;
  font-size: 0.62em;
  color: var(--hilo);
  vertical-align: 0.12em;
  margin: 0 0.04em;
}

.lema {
  margin: 10px 0 28px;
  color: var(--tinta-2);
}

form {
  display: grid;
  gap: 18px;
}

form .btn {
  margin-top: 4px;
  min-height: 50px;
  font-size: 1rem;
}