* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

.app {
  min-height: 100vh;
}

.topbar {
  height: 70px;
  background: #171b26;

  display: flex;
  align-items: center;
  justify-content: space-between;

  padding: 0 24px;

  border-bottom: 1px solid #222838;
}

.logo {
  font-size: 28px;
  font-weight: bold;
}

.status {
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 14px;
}

.status.online {
  background: #16351f;
  color: #7CFF9B;
}

.dashboard {
  padding: 24px;

  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));

  gap: 20px;
}

.card {
  background: #171b26;
  border: 1px solid #222838;

  border-radius: 12px;

  padding: 20px;
}

.card h2 {
  margin-bottom: 16px;
  font-size: 18px;
}

.card div {
  font-size: 24px;
  font-weight: bold;
}

.card.danger {
  border-color: #7a1e1e;
}

#kill-switch {
  width: 100%;
  height: 50px;

  border: none;
  border-radius: 10px;

  background: #b32626;
  color: white;

  font-size: 16px;
  font-weight: bold;

  cursor: pointer;
}