body {
  background-color: #f5f7fa;
  font-family: 'Segoe UI', sans-serif;
  margin: 0;
  padding: 0;
}

.admin-container {
  padding: 30px;
  max-width: 1000px;
  margin: auto;
}

h1 {
  text-align: center;
  margin-bottom: 30px;
  color: #333;
}

.metrics {
  display: flex;
  gap: 20px;
  justify-content: space-between;
  flex-wrap: wrap;
  margin-bottom: 30px;
}

.card {
  background: white;
  flex: 1;
  min-width: 200px;
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.05);
  text-align: center;
}

.card h3 {
  margin-bottom: 10px;
  color: #555;
}

.metric {
  font-size: 28px;
  font-weight: bold;
  color: #2c3e50;
}

.tabla-box {
  background: white;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 5px 10px rgba(0,0,0,0.05);
}

.tabla-box h2 {
  margin-top: 0;
  margin-bottom: 15px;
  color: #333;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid #eee;
}

th {
  background: #3498db;
  color: white;
}

.logout-btn {
  margin-top: 30px;
  text-align: center;
}

.logout-btn a {
  background: #e74c3c;
  color: white;
  padding: 10px 20px;
  border-radius: 8px;
  text-decoration: none;
}
.logout-btn a:hover {
  background: #c0392b;
}