body {
  margin: 0;
  background: #f5f7f9;
  color: #172026;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

header {
  background: #102027;
  color: #fff;
  padding: 14px 24px;
}

main {
  max-width: 1120px;
  margin: 0 auto;
  padding: 24px;
}

nav a, nav button {
  color: inherit;
  margin-right: 14px;
}

.panel {
  background: #fff;
  border: 1px solid #d7dee5;
  border-radius: 6px;
  margin-bottom: 18px;
  padding: 16px;
}

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

th, td {
  border-bottom: 1px solid #e4e8ec;
  padding: 9px;
  text-align: left;
}

input, select, textarea, button {
  font: inherit;
  max-width: 100%;
}

input, select, textarea {
  border: 1px solid #b9c3cc;
  border-radius: 4px;
  box-sizing: border-box;
  display: block;
  margin: 6px 0 12px;
  padding: 8px;
  width: 100%;
}

button, .button {
  background: #196b69;
  border: 0;
  border-radius: 4px;
  color: #fff;
  cursor: pointer;
  display: inline-block;
  padding: 8px 12px;
  text-decoration: none;
}

.danger {
  background: #a33d2b;
}

.error {
  background: #fff0ed;
  border: 1px solid #e5b2aa;
  color: #842b1d;
  padding: 10px;
}

.ok {
  color: #116149;
}

.blocked {
  color: #9b3a2d;
}