:root {
  --bg: #0f172a;
  --panel: #111827;
  --panel-2: #1f2937;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --accent: #3b82f6;
  --border: #374151;
  --danger: #ef4444;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: #020617;
  color: var(--text);
}
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1rem;
}
.topbar {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}
.nav a, .button {
  color: white;
  background: var(--accent);
  padding: .7rem 1rem;
  text-decoration: none;
  border-radius: .6rem;
  display: inline-block;
  border: none;
  cursor: pointer;
}
.button.secondary { background: #475569; }
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1rem;
  margin: 1rem 0;
}
.auth-card { max-width: 480px; margin: 3rem auto; }
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
}
.form-grid.narrow { grid-template-columns: 1fr; }
label { display: block; font-weight: 600; }
input, select, button {
  width: 100%;
  margin-top: .4rem;
  padding: .8rem;
  border-radius: .6rem;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
}
.actions {
  display: flex;
  gap: .75rem;
  align-items: end;
  flex-wrap: wrap;
}
table {
  width: 100%;
  border-collapse: collapse;
}
th, td {
  border-bottom: 1px solid var(--border);
  padding: .7rem;
  text-align: left;
  vertical-align: top;
}
.table-wrap { overflow-x: auto; }
.muted { color: var(--muted); }
.flash {
  padding: .8rem 1rem;
  border-radius: .6rem;
  margin: 1rem 0;
}
.flash.error { background: rgba(239, 68, 68, .2); border: 1px solid var(--danger); }
.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1rem;
}