/* RESET */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', Arial, sans-serif;
}

body {
  min-height: 100vh;
  background: #000;
  color: #fff;
  overflow: hidden;
}

/* Fondo animado diagonal */
.background-lines {
  position: fixed;
  inset: 0;
  background:
    linear-gradient(
      120deg,
      rgba(180,0,0,0.25) 0%,
      rgba(180,0,0,0.25) 10%,
      transparent 10%,
      transparent 20%
    );
  background-size: 200% 200%;
  animation: moveBackground 12s linear infinite;
  z-index: -1;
}

@keyframes moveBackground {
  from { background-position: 0% 50%; }
  to   { background-position: 100% 50%; }
}

/* Contenedor principal */
.container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
  background: rgba(0,0,0,0.65);
}

/* Logo */
.logo {
  max-width: 320px;
  width: 90%;
  margin-bottom: 2rem;
}

/* Texto */
h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  color: #e10600;
  margin-bottom: 1rem;
  letter-spacing: 1px;
}

p {
  max-width: 520px;
  font-size: 1.05rem;
  line-height: 1.6;
  color: #ccc;
}

/* Plecas animadas */
.plecas {
  display: flex;
  gap: 12px;
  margin: 2.5rem 0;
}

.plecas span {
  width: 80px;
  height: 6px;
  background: linear-gradient(135deg, #b30000, #ff1a1a);
  transform: skewX(-25deg);
  animation: pulse 2s ease-in-out infinite;
}

.plecas span:nth-child(2) { animation-delay: .3s; }
.plecas span:nth-child(3) { animation-delay: .6s; }

@keyframes pulse {
  0%   { opacity: .4; }
  50%  { opacity: 1; }
  100% { opacity: .4; }
}

/* Footer */
small {
  margin-top: 1rem;
  color: #777;
  font-size: .85rem;
}

/* Responsive */
@media (max-width: 480px) {
  .plecas span {
    width: 55px;
  }
}