.header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 8px 16px;
  background: #1e1e1e;
  color: #fff;
  border-top: 6px solid #3a3a3a;
}

.header-left h1 {
  margin: 0;
  font-size: 20px;
  color: #66b8ff;
}

.header-right {
  margin-left: auto;
}

.header-stats {
  display: flex;
  gap: 10px;
  font-size: 13px;
}

.header-stats .label {
  font-weight: 600;
}

.header.load-low    { border-top-color: #2ecc71; }
.header.load-normal { border-top-color: #f1c40f; }
.header.load-high   { border-top-color: #e67e22; }
.header.load-crit   { border-top-color: #e74c3c; }