* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, sans-serif;
  background: #0f172a;
  color: #e2e8f0;
  min-height: 100vh;
}
.container {
  max-width: 720px;
  margin: 40px auto;
  padding: 24px;
  background: #1e293b;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,.4);
}
h1 { margin-top: 0; }
input, button {
  display: block;
  width: 100%;
  padding: 10px 12px;
  margin: 8px 0;
  font-size: 14px;
  border-radius: 6px;
  border: 1px solid #334155;
  background: #0f172a;
  color: #e2e8f0;
}
button {
  background: #2563eb;
  border-color: #2563eb;
  color: white;
  cursor: pointer;
  font-weight: 600;
}
button:hover { background: #1d4ed8; }
button.logout { background: #dc2626; border-color: #dc2626; }
.error { color: #f87171; margin: 8px 0; }
.success { color: #4ade80; margin: 8px 0; }
.row { display: flex; gap: 12px; align-items: center; }
.row > * { flex: 1; }
ul { padding-left: 18px; }
li { margin: 6px 0; }
.meta { color: #94a3b8; font-size: 12px; margin-bottom: 16px; }
.error:empty, .success:empty { margin: 0; }