:root {
  --navy: #0b1b3a;
  --blue: #2f6bff;
  --surface: #f4f6fa;
  --card: #fff;
  --text: #122033;
  --muted: #6b778c;
  --line: #e3e8f0;
  --danger: #ef4444;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Arial, sans-serif;
  background: var(--surface);
  color: var(--text);
}
a { color: var(--blue); text-decoration: none; }
.shell { display: flex; min-height: 100vh; }
.sidebar {
  width: 240px;
  background: linear-gradient(180deg, var(--navy), #071428);
  color: #fff;
  padding: 20px 14px;
  display: flex;
  flex-direction: column;
}
.sidebar .brand {
  font-weight: 800;
  font-size: 20px;
  margin-bottom: 24px;
  padding: 0 8px;
}
.sidebar nav { display: flex; flex-direction: column; gap: 6px; flex: 1; }
.sidebar a {
  color: rgba(255,255,255,.78);
  padding: 10px 12px;
  border-radius: 10px;
}
.sidebar a.active, .sidebar a:hover {
  background: rgba(47,107,255,.28);
  color: #fff;
}
.side-foot {
  border-top: 1px solid rgba(255,255,255,.12);
  padding-top: 12px;
  font-size: 13px;
  color: rgba(255,255,255,.7);
  display: flex;
  justify-content: space-between;
}
.main { flex: 1; padding: 22px 26px 40px; }
.top { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.top h1 { margin: 0; font-size: 24px; }
.pill {
  background: #dcfce7;
  color: #166534;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
}
.stats {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}
.stat {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px;
}
.stat span { display: block; color: var(--muted); font-size: 13px; margin-bottom: 6px; }
.stat strong { font-size: 28px; }
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 14px;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px;
  margin-bottom: 14px;
  overflow: auto;
}
.card h2 { margin: 0 0 12px; font-size: 16px; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: right; padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 700; }
code { background: #eef2ff; padding: 2px 6px; border-radius: 6px; font-size: 12px; }
.muted { color: var(--muted); }
.toolbar { display: flex; gap: 8px; margin-bottom: 12px; }
.toolbar input, .toolbar select, .login-card input {
  flex: 1;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  font-size: 14px;
}
.toolbar button, .login-card button {
  background: var(--blue);
  color: #fff;
  border: 0;
  border-radius: 12px;
  padding: 12px 18px;
  font-weight: 700;
  cursor: pointer;
}
.payload pre {
  margin: 0;
  max-width: 420px;
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 11px;
  color: var(--muted);
}
.login-body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: radial-gradient(circle at top, #1e3a8a, var(--navy));
}
.login-card {
  width: min(420px, 92vw);
  background: #fff;
  border-radius: 20px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.login-card .brand { color: var(--blue); font-weight: 800; font-size: 22px; }
.login-card h1 { margin: 0; }
.login-card label { font-size: 13px; color: var(--muted); margin-top: 8px; }
.alert {
  background: #fee2e2;
  color: #991b1b;
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 13px;
}
@media (max-width: 1100px) {
  .stats { grid-template-columns: repeat(3, 1fr); }
  .grid-2 { grid-template-columns: 1fr; }
}
@media (max-width: 800px) {
  .shell { flex-direction: column; }
  .sidebar { width: 100%; }
  .stats { grid-template-columns: repeat(2, 1fr); }
}