body {
  font-family: "Segoe UI", Arial, sans-serif;
  background-color: #f5f6fa;
  margin: 0;
  padding: 0;
  color: #333;
}
.container {
  max-width: 1100px;
  margin: 40px auto;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
  padding: 30px 40px;
}
h1 {
  text-align: center;
  color: #005aa7;
  margin-bottom: 30px;
}
.tab-menu {
  display: flex;
  flex-wrap: wrap;
  border-bottom: 2px solid #e0e0e0;
  margin-bottom: 25px;
}
.tab-link {
  background: #f1f1f1;
  border: none;
  cursor: pointer;
  padding: 12px 20px;
  font-size: 16px;
  color: #444;
  border-top-left-radius: 8px;
  border-top-right-radius: 8px;
  margin-right: 5px;
  transition: all 0.2s ease;
}
.tab-link.active {
  background: #005aa7;
  color: #fff;
  font-weight: 600;
}
.tab-link:hover { background: #e5e5e5; }
.tab-content { display: none; animation: fade 0.4s ease; }
.tab-content.active { display: block; }
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 10px;
}
table, th, td { border: 1px solid #ccc; }
th {
  background-color: #005aa7;
  color: #fff;
  text-align: left;
  padding: 8px;
}
td {
  background-color: #fafafa;
  padding: 8px;
}
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }
@media (max-width: 768px) {
  .tab-menu { flex-direction: column; }
  .tab-link { width: 100%; margin-bottom: 4px; }
}