body {
  font-family: system-ui, sans-serif;
  margin: 1.5rem auto;
  max-width: 48rem;
  line-height: 1.4;
  color: #1a1a1a;
}

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

header nav {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.flash {
  padding: 0.6rem 0.75rem;
  margin-bottom: 1rem;
  border-radius: 4px;
}

.flash-notice {
  background: #e8f5e9;
}

.flash-alert {
  background: #fdecea;
}

form > div {
  margin-bottom: 0.75rem;
}

label {
  display: block;
}

input, select {
  width: 100%;
  max-width: 24rem;
  box-sizing: border-box;
}

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

th, td {
  text-align: left;
  padding: 0.35rem 0.5rem 0.35rem 0;
  border-bottom: 1px solid #ddd;
}

.provider-list {
  padding-left: 1.25rem;
}

.provider-list li {
  margin-bottom: 0.35rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

.actions form {
  display: inline;
}