* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: #1f2937;
  background: #f5f6f8;
}
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 28px;
  background: #111827;
  color: #fff;
}
header h1 { margin: 0; font-size: 22px; }
header a { color: #dbeafe; text-decoration: none; }
main { padding: 24px; }
.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
}
.login-box, .panel, .cards > div {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0,0,0,.06);
}
.login-box {
  width: min(420px, calc(100vw - 32px));
  padding: 28px;
}
h1, h2 { letter-spacing: 0; }
h2 { margin: 0 0 18px; font-size: 18px; }
label {
  display: grid;
  gap: 6px;
  margin-bottom: 14px;
  color: #4b5563;
}
input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  font-size: 14px;
}
button {
  border: 0;
  border-radius: 6px;
  background: #2563eb;
  color: #fff;
  padding: 10px 14px;
  cursor: pointer;
  font-weight: 700;
}
button:hover { background: #1d4ed8; }
.alert {
  margin: 0 0 16px;
  padding: 10px 12px;
  border-radius: 6px;
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  color: #065f46;
}
.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 18px;
}
.cards > div { padding: 18px; }
.cards b { display: block; font-size: 28px; }
.cards span { color: #64748b; }
.panel {
  padding: 18px;
  margin-bottom: 18px;
}
.inline-form {
  display: grid;
  grid-template-columns: 120px 120px minmax(180px, 1fr) auto;
  gap: 12px;
  align-items: end;
}
.table-wrap { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
th, td {
  border-bottom: 1px solid #e5e7eb;
  padding: 10px;
  text-align: left;
  vertical-align: top;
}
th { color: #475569; background: #f8fafc; }
code, .mono {
  font-family: Consolas, Monaco, monospace;
  word-break: break-all;
}
.actions {
  display: flex;
  gap: 8px;
  min-width: 280px;
}
.actions form {
  display: inline-flex;
  gap: 6px;
}
.actions input { width: 70px; padding: 8px; }
.actions button { padding: 8px 10px; }
@media (max-width: 760px) {
  .cards, .inline-form { grid-template-columns: 1fr; }
  .actions { flex-wrap: wrap; }
}