body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: #f6f7fb;
  color: #1f2937;
}

header {
  background: #111827;
  color: #fff;
  padding: 1rem 1.5rem;
}

nav {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}

nav a,
nav button {
  color: #fff;
  background: none;
  border: none;
  font: inherit;
  cursor: pointer;
  text-decoration: none;
}

nav a.active {
  font-weight: bold;
  text-decoration: underline;
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem;
}

.page-grid {
  display: grid;
  gap: 1.5rem;
}

.two-column {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
  background: #fff;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  padding: 1rem;
}

form {
  display: grid;
  gap: 0.75rem;
}

label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.95rem;
}

input,
select,
textarea,
button {
  font: inherit;
}

input,
select,
textarea {
  padding: 0.55rem 0.65rem;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
}

button {
  padding: 0.6rem 0.9rem;
  border-radius: 6px;
  border: 1px solid #111827;
  background: #111827;
  color: white;
  cursor: pointer;
}

button.secondary {
  background: white;
  color: #111827;
}

button.inline-button {
  padding: 0.35rem 0.6rem;
}

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

th,
td {
  padding: 0.65rem;
  border-bottom: 1px solid #e5e7eb;
  text-align: left;
  vertical-align: top;
}

.message {
  padding: 0.75rem;
  border-radius: 6px;
  margin-bottom: 1rem;
}

.message.info {
  background: #eff6ff;
  color: #1d4ed8;
}

.message.success {
  background: #ecfdf5;
  color: #047857;
}

.message.error {
  background: #fef2f2;
  color: #b91c1c;
}

.muted {
  color: #6b7280;
}

.stack {
  display: grid;
  gap: 0.5rem;
}

.actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.pill {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  border-radius: 999px;
  background: #e5e7eb;
  font-size: 0.85rem;
}

.list-reset {
  margin: 0;
  padding-left: 1rem;
}