*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
  
:root {
  --text-color: white;
  --bg-url: url(./assets/bg-mobile.jpg);
  --stroke-color: rgba(255, 255, 255, 0.5);
  --surface-color: rgba(255, 255, 255, 0.05);
  --surface-color-hover: rgba(0, 0, 0, 0.2);
  --switch-bg-url: url(./assets/moon-star.svg);
  --highlight-color: #909090; /* exemplo: verde */
}

.light {
  --text-color: black;
  --bg-url: url(./assets/bg-mobile-light.jpg);
  --stroke-color: rgba(0, 0, 0, 0.5);
  --surface-color: rgba(0, 0, 0, 0.05);
  --surface-color-hover: rgba(0, 0, 0, 0.2);
  --switch-bg-url: url(./assets/sun.svg);
  --highlight-color: #6a6a6a;
}
  
body {
 background: var(--bg-url) no-repeat top center/cover;
}

body * {
    font-family: 'inter', sans-serif;
    color: var(--text-color);
  }

#container {
  width: 360px;
  margin: 56px auto 0px;
}

#profile {
  text-align: center;
  padding: 24px;
}

#profile img {
  width: 112px;
  margin: auto;
}

#profile a{
  font-weight: 500;
  line-height: 24px;
}

/* switch*/

#switch {
  position: relative;
  width: 64px;
  margin: 4px auto;
}

#switch button {
  width: 32px;
  height: 32px;
  background: white var(--switch-bg-url) no-repeat center;
  border: 0;
  border-radius: 50%;

  position: absolute;
  top: 50%;
  left: 0;
  z-index: 1;
  transform: translateY(-50%);

  animation: slide-back 0.2s;
} 
.light #switch button {
  animation: slide-in 0.4s forwards;
}

#switch button:hover {
  outline: 8px solid var(--highlight-color);
}
#switch span {
  display: block;
  width: 64px;
  height: 24px;
  background: var(--surface-color);
  border: 1px solid var(--stroke-color);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border-radius: 9999px;
}
/*links */

ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 0;
  margin-top: 20px;
  align-items: center; /* NOVO → centraliza as caixas */
}

ul li {
  width: 100%;
  max-width: 320px; /* NOVO → limita a largura das caixas */
}

ul li a { 
  display: block; /* ALTERADO → antes era flex */
  text-align: center; /* NOVO → centraliza o texto */
  padding: 14px 20px; /* ajuste de tamanho */

  background: var(--surface-color);
  border: 1px solid var(--stroke-color);
  border-radius: 10px; /* ALTERADO → arredondamento maior */

  backdrop-filter: blur(6px); /* ALTERADO → blur mais suave */
  -webkit-backdrop-filter: blur(6px);

  text-decoration: none;
  font-weight: 500; /* CORRIGIDO → antes estava "none" */

  transition: background 0.3s, border 0.3s; /* CORRIGIDO → antes tinha 0,5s com vírgula */
}

ul li a:hover {
  background: var(--surface-color-hover);
  border: 1.5px solid var(--text-color);
}

footer {
  padding: 24px 0;
  text-align: center;
}

/*animation */
@keyframes slide-in {
  from {
    left: 0;
  }
  to {
    left: 50%;
  }
}

@keyframes slide-back {
  from {
    left: 50%;
  }
  to {
    left: 0;
  }
}