body {
  font-family: Arial, sans-serif;
  background: #f4f4f4;
  margin: 0;
  color: #333;
}

.header {
  display: flex;
  justify-content: space-between;
  background: #dfe4f2;
  padding: 10px 20px;
  align-items: center;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.logo img {
  height: 40px;
  vertical-align: middle;
}

.app-title {
  font-size: 1.5em;
  margin-left: 10px;
  font-weight: bold;
}

.tag {
  background: #a78bfa;
  color: white;
  padding: 2px 8px;
  border-radius: 5px;
  font-size: 0.7em;
  margin-left: 5px;
}

.stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 20px;
}

.box {
  flex: 1 1 30%;
  background: #fff;
  padding: 20px;
  font-size: 1.8em;
  text-align: center;
  border-radius: 10px;
}

.box small {
  display: block;
  font-size: 0.6em;
  margin-top: 10px;
  color: #666;
}

.green { background: #b9e4c9; }
.pink { background: #fddcdc; }
.purple { background: #d8d6f5; }
.yellow { background: #efe4b0; }
.blue { background: #a7d1f4; }
.mint { background: #b0f5d4; }

.upload-panel {
  background: #fff;
  margin: 20px;
  padding: 20px;
  border-radius: 10px;
}

.tabs {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}

.tabs button {
  padding: 10px 20px;
  border: none;
  background: #e2e2f2;
  border-radius: 5px;
  cursor: pointer;
}

.tabs .active {
  background: #8b5cf6;
  color: #fff;
}

.upload-area {
  text-align: center;
  margin-bottom: 20px;
}

.upload-btn {
  background: #888;
  color: white;
  border: none;
  padding: 10px 30px;
  border-radius: 5px;
  font-size: 1em;
  cursor: pointer;
}

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

.invoice-table thead {
  background: #ccc;
}

.invoice-table th, .invoice-table td {
  padding: 10px;
  border: 1px solid #aaa;
  font-size: 0.9em;
}

.highlight {
  background: #f88;
}

.gear {
  font-size: 1.2em;
}