body {
  font-family: Arial, sans-serif;
  margin: 0; padding: 0;
  background: #f4f7fa;
  color: #333;
}

header {
  background: #0077b6;
  color: #fff;
  padding: 20px;
  text-align: center;
}

main {
  padding: 20px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.card {
  background: #fff;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

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

th, td {
  padding: 10px;
  text-align: center;
  border-bottom: 1px solid #ddd;
}

th {
  background: #0077b6;
  color: #fff;
}

.status.aman { color: green; font-weight: bold; }
.status.siaga { color: orange; font-weight: bold; }
.status.bahaya { color: red; font-weight: bold; }

canvas {
  margin-top: 20px;
  width: 100% !important;
  max-height: 300px;
}