* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #0f1117;
  color: white;
  font-family: Arial, sans-serif;
}

.container {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

.topbar {
  padding: 16px;
  background: #161b22;
  border-bottom: 1px solid #333;
}

h1 {
  margin: 0 0 12px;
  font-size: 24px;
}

.controls {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

input,
select,
button {
  background: #222;
  color: white;
  border: 1px solid #444;
  padding: 10px;
  border-radius: 8px;
}

button {
  cursor: pointer;
}

button:hover {
  background: #333;
}

.main {
  display: flex;
  flex: 1;
  overflow: hidden;
}

.table-area {
  width: 50%;
  overflow: auto;
  border-right: 1px solid #333;
}

.chart-area {
  width: 50%;
  display: flex;
  flex-direction: column;
}

#chart {
  flex: 1;
  width: 100%;
}

#table {
  height: 100%;
}

@media (max-width: 900px) {
  .main {
    flex-direction: column;
  }

  .table-area,
  .chart-area {
    width: 100%;
    height: 50%;
  }
}