:root {
  color-scheme: light dark;
  --bg: #0f1419;
  --card: #1a2332;
  --border: #2d3a4d;
  --text: #e7ecf3;
  --muted: #9aa7b8;
  --accent: #3b82f6;
  --danger: #ef4444;
  --ok: #22c55e;
  font-family: Inter, system-ui, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 24px;
  background: var(--bg);
  color: var(--text);
}

header { margin-bottom: 24px; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}

.topbar h1 { margin-bottom: 4px; }

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-card {
  width: min(420px, 100%);
}

.login-header {
  margin-bottom: 20px;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.login-form label {
  color: var(--muted);
  font-size: 0.9rem;
}

.login-btn {
  margin-top: 8px;
  width: 100%;
}

h1, h2, h3 { margin: 0 0 8px; }

.subtitle, .hint {
  color: var(--muted);
  margin: 0;
}

.grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}

.auth-card {
  max-width: 520px;
  margin-bottom: 20px;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

input {
  flex: 1;
  min-width: 160px;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #111827;
  color: var(--text);
}

button {
  padding: 10px 14px;
  border-radius: 8px;
  border: none;
  background: var(--accent);
  color: white;
  cursor: pointer;
}

button.secondary {
  background: transparent;
  border: 1px solid var(--border);
}

button.danger {
  background: var(--danger);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 16px;
}

th, td {
  text-align: left;
  padding: 10px 8px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.form-block {
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.error {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid var(--danger);
  color: #fecaca;
  padding: 10px 12px;
  border-radius: 8px;
  margin-bottom: 12px;
}

#authStatus.ok { color: var(--ok); }

@media (max-width: 640px) {
  body { padding: 16px; }
}