* {
  box-sizing: border-box;
  font-family: system-ui, -apple-system, BlinkMacSystemFont;
}

body {
  margin: 0;
  background: #f5f7fa;
  color: #222;
}

header {
  background: white;
  padding: 16px;
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
}

h1 {
  margin: 0 0 6px;
  font-size: 22px;
}

#totalCount {
  margin: 0 0 10px;
  font-weight: 500;
}

select {
  width: 100%;
  padding: 10px;
  font-size: 14px;
}

.group {
  margin: 20px 10px;
}

.group-header {
  font-weight: 600;
  margin-bottom: 6px;
}

.group-header span {
  font-weight: normal;
  color: #555;
}

.table {
  width: 100%;
  background: white;
  border-radius: 8px;
  overflow: hidden;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  table-layout: fixed;
}

th, td {
  padding: 10px;
  border-bottom: 1px solid #eee;
  text-align: left;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

th {
  background: #222;
  color: white;
  position: sticky;
  top: 0;
  z-index: 2;
}

/* Column widths (consistent across groups) */
th:nth-child(1), td:nth-child(1) { width: 22%; }
th:nth-child(2), td:nth-child(2) { width: 12%; }
th:nth-child(3), td:nth-child(3) { width: 16%; }
th:nth-child(4), td:nth-child(4) { width: 16%; }
th:nth-child(5), td:nth-child(5) { width: 18%; white-space: normal; }
th:nth-child(6), td:nth-child(6) { width: 16%; }

/* Row color rules */
.row-green { background: #c8fde6; }
.row-red { background: #ffcfc9; }
.row-strong-green { background: #7be0b4; }
.correction-highlight { background: #ffcfc9; }

/* Mobile fixes */
@media (max-width: 768px) {
  .table {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  table {
    min-width: 720px;
  }

  th, td {
    font-size: 12px;
    padding: 8px;
  }
  footer{
    display: block !important;
  }

  footer h1{
    font-size: 20px !important;
  }

  footer span{
    margin-bottom: 20px !important;
  }
}

/* Loading animation */
#loading {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(245, 247, 250, 0.9);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 999;
  font-family: system-ui, sans-serif;
  font-size: 16px;
  color: #222;
}

.spinner {
  border: 6px solid #eee;
  border-top: 6px solid #222;
  border-radius: 50%;
  width: 50px;
  height: 50px;
  animation: spin 1s linear infinite;
  margin-bottom: 12px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}
#loading {
  transition: opacity 0.3s ease;
}