* { box-sizing: border-box; }

body {
  font-family: system-ui, sans-serif;
  max-width: 960px;
  margin: 0 auto;
  padding: 1rem;
  color: #1a1a1a;
}

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

nav a { text-decoration: none; color: #1a1a1a; font-weight: bold; }

table { border-collapse: collapse; width: 100%; margin: 1rem 0; }
th, td { text-align: left; padding: 0.4rem 0.6rem; border-bottom: 1px solid #eee; }

form div, .field { margin-bottom: 0.75rem; }
label { display: block; font-weight: bold; margin-bottom: 0.25rem; }
input[type=text], input[type=email], input[type=password], input[type=number],
input[type=date], textarea, select {
  width: 100%;
  max-width: 480px;
  padding: 0.4rem;
  font-family: inherit;
  font-size: 1rem;
}
textarea { font-family: ui-monospace, monospace; max-width: 100%; }

button { padding: 0.5rem 1rem; cursor: pointer; }

.error { color: #b00020; font-size: 0.9rem; }
.flash { background: #e6f4ea; border: 1px solid #34a853; padding: 0.5rem 1rem; margin-bottom: 1rem; }

footer { margin-top: 2rem; padding-top: 1rem; border-top: 1px solid #ddd; color: #777; font-size: 0.85rem; }