body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: #202124;
  background: #f5f7f8;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 24px;
  background: #ffffff;
  border-bottom: 1px solid #dfe3e6;
}

nav {
  display: flex;
  gap: 14px;
  align-items: center;
}

a {
  color: #075985;
}

main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 24px;
}

h1 {
  font-size: 24px;
}

button {
  border: 1px solid #0f766e;
  background: #0f766e;
  color: white;
  padding: 8px 12px;
  border-radius: 4px;
  cursor: pointer;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  border: 1px solid #dfe3e6;
}

th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid #edf0f2;
  vertical-align: top;
}

th {
  background: #eef3f5;
  font-size: 13px;
}

tr.warn {
  background: #fff3f0;
}

tr.muted {
  color: #6b7280;
  background: #f8fafc;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}

.stats div {
  background: white;
  border: 1px solid #dfe3e6;
  border-radius: 6px;
  padding: 16px;
}

.stats span {
  display: block;
  font-size: 28px;
  font-weight: 700;
}

.login {
  min-height: 100vh;
  display: grid;
  place-items: center;
}

.login-box {
  width: 320px;
  background: white;
  border: 1px solid #dfe3e6;
  border-radius: 6px;
  padding: 24px;
}

label {
  display: block;
  margin-bottom: 12px;
}

input {
  box-sizing: border-box;
  width: 100%;
  margin-top: 4px;
  padding: 9px;
  border: 1px solid #cbd5e1;
  border-radius: 4px;
}

.error {
  color: #b42318;
}