:root {
  --rsai-bg: #0f172a;
  --rsai-panel: #1e293b;
  --rsai-border: #334155;
  --rsai-text: #e2e8f0;
  --rsai-muted: #94a3b8;
  --rsai-accent: #22d3ee;
  --rsai-danger: #f87171;
  --rsai-warn: #fbbf24;
  --rsai-good: #4ade80;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background: var(--rsai-bg);
  color: var(--rsai-text);
}

a {
  color: var(--rsai-accent);
}

header.rsai-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1.5rem;
  border-bottom: 1px solid var(--rsai-border);
  background: var(--rsai-panel);
}

header.rsai-nav .brand {
  font-weight: 700;
  letter-spacing: 0.02em;
}

header.rsai-nav nav a {
  margin-left: 1.25rem;
  text-decoration: none;
  color: var(--rsai-muted);
  font-size: 0.95rem;
}

header.rsai-nav nav a:hover {
  color: var(--rsai-text);
}

main {
  max-width: 1080px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

.rsai-card {
  background: var(--rsai-panel);
  border: 1px solid var(--rsai-border);
  border-radius: 10px;
  padding: 1.25rem;
}

.rsai-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.rsai-stat-label {
  color: var(--rsai-muted);
  font-size: 0.85rem;
  margin-bottom: 0.4rem;
}

.rsai-stat-value {
  font-size: 2rem;
  font-weight: 700;
}

table.rsai-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

table.rsai-table th,
table.rsai-table td {
  text-align: left;
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--rsai-border);
}

table.rsai-table th {
  color: var(--rsai-muted);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.rsai-badge {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.rsai-badge.good {
  background: rgba(74, 222, 128, 0.15);
  color: var(--rsai-good);
}

.rsai-badge.warn {
  background: rgba(251, 191, 36, 0.15);
  color: var(--rsai-warn);
}

.rsai-badge.danger {
  background: rgba(248, 113, 113, 0.15);
  color: var(--rsai-danger);
}

.rsai-badge.neutral {
  background: rgba(148, 163, 184, 0.15);
  color: var(--rsai-muted);
}

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

.rsai-login-card {
  width: 100%;
  max-width: 360px;
}

.rsai-login-card h1 {
  font-size: 1.3rem;
  margin-bottom: 0.25rem;
}

.rsai-login-card p.tagline {
  color: var(--rsai-muted);
  margin-top: 0;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

.rsai-field {
  margin-bottom: 1rem;
}

.rsai-field label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.85rem;
  color: var(--rsai-muted);
}

.rsai-field input {
  width: 100%;
  padding: 0.6rem 0.7rem;
  border-radius: 6px;
  border: 1px solid var(--rsai-border);
  background: #0b1220;
  color: var(--rsai-text);
  font-size: 0.95rem;
}

.rsai-button {
  width: 100%;
  padding: 0.65rem 0.7rem;
  border-radius: 6px;
  border: none;
  background: var(--rsai-accent);
  color: #0b1220;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
}

.rsai-error {
  color: var(--rsai-danger);
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

.rsai-empty {
  color: var(--rsai-muted);
  font-size: 0.9rem;
  padding: 1rem 0;
}