/* Global */
body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f9f9f9;
  color: #333;
}

.container {
  width: 90%;
  max-width: 900px;
  margin: 0 auto;
}

/* Header */
header {
  background-color: #fff;
  border-bottom: 1px solid #ddd;
  padding: 15px 0 0;
}

/* Tabs Navigation (now replaces navbar) */
.tabs {
  display: flex;
  flex-wrap: wrap;
  border-bottom: 2px solid #ddd;
  margin-top: 15px;
}

.tabs a {
  display: inline-block;
  padding: 10px 18px;
  background-color: #f4f4f4;
  border: 1px solid #ddd;
  border-bottom: none;
  color: #333;
  text-decoration: none;
  font-weight: 500;
  border-top-left-radius: 5px;
  border-top-right-radius: 5px;
  transition: background-color 0.2s, color 0.2s;
  margin-right: 5px;
}

.tabs a:hover {
  background-color: #e6e6e6;
}

.tabs a.active {
  background-color: #fff;
  border-color: #ccc;
  color: #0066cc;
  font-weight: 600;
  box-shadow: 0 -2px 5px rgba(0, 0, 0, 0.05);
  position: relative;
  z-index: 2;
}

/* Page Content */
main {
  background-color: #fff;
  margin-top: 0;
  padding: 20px;
  border-radius: 0 0 5px 5px;
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.05);
}

.content-box {
  background-color: #f1f1f1;
  padding: 15px;
  margin-top: 20px;
  border-radius: 4px;
}

/* Footer */
footer {
  text-align: center;
  font-size: 0.9em;
  color: #666;
  margin: 40px 0 20px;
}