* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Marianne", "Segoe UI", Roboto, Arial, sans-serif;
}

body {
  background: linear-gradient(180deg, #0b1c2d, #0f172a);
  color: #f8fafc;
  min-height: 100vh;
}

header {
  background: linear-gradient(90deg, #0b1c2d, #1e3a8a);
  border-bottom: 4px solid #dc2626;
  box-shadow: 0 6px 30px rgba(0, 0, 0, 0.5);
}

.navbar {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2.5rem;
  padding: 1.3rem 2rem;
}

.navitem a {
  color: #f8fafc;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.6rem 1.2rem;
  border-radius: 6px;
  transition: background 0.3s, box-shadow 0.3s;
}

.navitem a:hover {
  background: rgba(255, 255, 255, 0.12);
  box-shadow: inset 0 -3px 0 #ffffff;
}


p {
  text-align: center;
  margin: 1.6rem 0;
  font-size: 1.05rem;
  color: #e5e7eb;
}


table {
  width: 92%;
  margin: 2.5rem auto;
  border-collapse: collapse;
  background: #020617;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

thead {
  background: linear-gradient(90deg, #1e3a8a, #2563eb);
}

thead th {
  padding: 1rem 1.1rem;
  text-align: left;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

tbody td {
  padding: 0.9rem 1.1rem;
  font-size: 0.9rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

tbody tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.03);
}

tbody tr:hover {
  background: rgba(37, 99, 235, 0.18);
}

button {
  background: linear-gradient(135deg, #1e3a8a, #2563eb);
  border: none;
  color: #ffffff;
  padding: 0.45rem 0.9rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: transform 0.2s, box-shadow 0.2s;
}

button:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.45);
}


form {
  display: inline;
}

form[action="deconnexion.php"] {
  text-align: center;
  margin-bottom: 2.5rem;
}

form[action="deconnexion.php"] button {
  background: linear-gradient(135deg, #7f1d1d, #dc2626);
}

form[action="deconnexion.php"] button:hover {
  box-shadow: 0 6px 18px rgba(220, 38, 38, 0.55);
}

@media (max-width: 900px) {
  .navbar {
    flex-wrap: wrap;
    gap: 1rem;
  }

  table {
    width: 100%;
  }

  thead {
    display: none;
  }

  tbody tr {
    display: block;
    margin-bottom: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    overflow: hidden;
  }

  tbody td {
    display: flex;
    justify-content: space-between;
    padding: 0.7rem 1rem;
  }

  tbody td::before {
    content: attr(data-label);
    font-weight: 700;
    color: #93c5fd;
    text-transform: uppercase;
    letter-spacing: 0.05em;
  }
}