body {
  margin: 0;
  font-family: system-ui, sans-serif;
  color: #1f2933;
  background: #f5f7fa;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1.5rem;
  background: #ffffff;
  border-bottom: 1px solid #d9e2ec;
}

header h1 {
  margin: 0;
  font-size: 1.1rem;
}

nav a {
  margin-right: 1rem;
}

main {
  max-width: 70rem;
  margin: 0 auto;
  padding: 1.5rem;
}

section {
  margin-bottom: 1.5rem;
  padding: 1rem 1.25rem;
  background: #ffffff;
  border: 1px solid #d9e2ec;
  border-radius: 6px;
}

h2 {
  margin-top: 0;
  font-size: 1rem;
}

button {
  padding: 0.4rem 0.9rem;
  font: inherit;
  cursor: pointer;
}

.message {
  color: #52606d;
}

.error {
  color: #b42318;
}

.hint {
  margin: 0 0 0.5rem;
  font-size: 0.85rem;
  color: #52606d;
}

.chart {
  position: relative;
  height: 20rem;
}

.latest {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
  gap: 0.75rem;
  margin: 0;
}

.latest dt {
  font-size: 0.8rem;
  color: #52606d;
}

.latest dd {
  margin: 0;
  font-size: 1.1rem;
}

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

th,
td {
  padding: 0.5rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid #d9e2ec;
}

.login {
  max-width: 20rem;
  margin: 4rem auto;
}

.login label {
  display: block;
  margin-bottom: 0.75rem;
}

.login input {
  display: block;
  width: 100%;
  box-sizing: border-box;
  margin-top: 0.25rem;
  padding: 0.4rem;
  font: inherit;
}