/* Fonte retrô digital */
@import url('https://fonts.googleapis.com/css2?family=VT323&display=swap');

body {
  margin: 0;
  padding: 0;
  font-family: 'VT323', monospace;
  background: black url('https://sadhost.neocities.org/images/stars3.gif'); /* Fundo estrelado mais escuro */
  color: #c4c4c4; /* Cinza frio */
}

/* Container principal */
.caderno {
  max-width: 800px;
  margin: 50px auto;
  background: rgba(5, 5, 15, 0.92); /* Caixa quase preta */
  padding: 35px;
  border: 1px solid #5a005a; /* Borda roxo-sangue */
  border-radius: 6px;
  box-shadow: 0 0 15px rgba(90, 0, 90, 0.6);
  position: relative;
}

/* Efeito glitch sutil no container */
.caderno::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: repeating-linear-gradient(
    to bottom,
    rgba(255,0,0,0.03) 0px,
    transparent 1px,
    rgba(0,0,255,0.03) 2px
  );
  mix-blend-mode: screen;
  pointer-events: none;
}

/* Títulos */
h1, h2 {
  text-align: center;
  color: #a300a3; /* Roxo mórbido */
  text-shadow: 0 0 6px #a300a3, 0 0 15px #550055;
  margin-bottom: 20px;
}

/* Destaques */
strong {
  color: #8a008a;
}

/* Barra de progresso */
.progresso {
  width: 100%;
  background: rgba(255, 255, 255, 0.05);
  height: 15px;
  margin: 25px 0;
  border-radius: 5px;
  border: 1px solid #550055;
}

.barra {
  background: linear-gradient(90deg, #550055, #8a008a);
  height: 100%;
  width: 5%;
  border-radius: 5px;
  transition: width 0.5s;
  box-shadow: 0 0 10px #550055;
}

/* Atualização */
.atualizacao {
  font-size: 18px;
  text-align: center;
  margin-top: 10px;
  color: #a300a3;
  text-shadow: 0 0 5px #550055;
}

/* Índice */
ul {
  list-style: none;
  padding: 0;
  margin-top: 20px;
}

ul li {
  margin: 8px 0;
  padding: 6px;
  border-left: 3px solid #550055;
}

a {
  color: #c4c4c4;
  text-decoration: none;
  transition: 0.2s;
}

a:hover {
  color: #ff0044; /* Vermelho fantasma */
  text-shadow: 0 0 6px #ff0044;
}
.barra {
  background: linear-gradient(90deg, #8a008a, #ff00aa);
  animation: glow 2s infinite alternate;
}
@keyframes glow {
  from { filter: brightness(0.8); }
  to   { filter: brightness(1.4); }
}
h1 {
  color: #ff00aa;
  text-shadow: 
    2px 0 #550055,
    -2px 0 #220022,
    0 0 10px #ff00aa;
}
footer {
  text-align: center;
  font-size: 14px;
  color: #550055;
  margin-top: 40px;
  text-shadow: 0 0 6px #a300a3;
}
.colagem {
  display: block;
  margin: 20px auto;
  max-width: 200px;
  border: 2px solid #550055;
  box-shadow: 0 0 10px #a300a3;
}