body {
  background: linear-gradient(to right, rgb(155, 216, 231) 20%, #ffffffee 80%);
  margin: 0;
}

body.dark {
  background: linear-gradient(to right, rgba(25, 50, 56, 0.7) 20%, #ffffffee 80%);
}

header {
  background-image: url("../images/buildings.jpg");
  background-size: cover;
  border: 2px solid grey;
  border-bottom: 2px solid #000;
  margin-bottom: 13px;
  margin: 7px;
  padding: 20px 0 80px;
  border-radius: 8px;
  text-align: center;
}

header h1 {
  color: #fff;
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

header h2 {
  font-size: 1.5rem;
  color: #003c4b;
  background-color: rgba(255, 255, 255, 0.4);
}

main {
  padding: 0 15px;
}

button.themeButton {
  padding: 5px;
  border-radius: 15px;
  margin-left: 80px;
  margin-bottom: 30px;
  background: linear-gradient(to right, #000 10%, #fff);
  color: #fff;
  transition: all 800ms ease-in-out;
}

button.themeButton:hover {
  cursor: pointer;
  padding: 5px;
  border-radius: 15px;
  margin-left: 80px;
  background: linear-gradient(to right, rgb(0, 0, 0) 60%, #fff);
  color: #fff;
}

footer p {
  text-align: center;
}

footer .gridOf2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  text-align: center;
  margin: 0 15%;
}

footer .pink {
  color: #ff0077;
  font-size: 20px;
  text-decoration: none;
}

footer .themeButton {
  margin-top: 1em;
}

.menu {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  text-align: center;
  background: rgba(255, 255, 255, 0.6);
  margin: 18px 0 40px 0;
  padding: 7px;
  border-radius: 7px;
}

.menu-btn {
  background: none;
  border: none;
  padding: 0;
  margin: 0;
  color: #0077cc;
  /* Bleu doux et accessible */
  font: inherit;
  cursor: pointer;
  font-weight: bold;
  transition: color 0.2s ease;
}

.menu-btn:visited {
  color: #663399;
  /* Violet pour les liens déjà suivis */
}

.menu-btn:hover {
  color: #004999;
  /* Bleu plus foncé au survol */
  text-decoration: underline;
}

.dark .menu-btn {
  color: #32b67a;
  /* Vert feuillu en mode sombre */
}

.dark .menu-btn:visited {
  color: #ae63e4;
  /* Violet électrique en mode sombre */
}

.dark .menu-btn:hover {
  color: #1e864d;
  /* Vert plus intense au survol */
}

body.commentaire-supprimé::before {
  content: "✅ Commentaire supprimé avec succès";
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  background-color: #28a745;
  color: white;
  padding: 0.5em 1em;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
  animation: fadeOut 3s ease-out forwards;
}

button:hover {
  cursor: pointer;
}

@media screen and (max-width: 350px) {
  .menu {
    display: grid;
    grid-template-columns: 1fr 1fr;
    text-align: center;
    background: rgba(255, 255, 255, 0.6);
    margin: 18px 0 40px 0;
    padding: 7px;
    border-radius: 7px; 
  }
}

@keyframes fadeOut {
  0% {
    opacity: 1;
  }

  80% {
    opacity: 1;
  }

  100% {
    opacity: 0;
    display: none;
  }
}