:root {
  --brand: #2357d8;
  --brand-dark: #163a96;
  --accent: #6d4aff;
  --soft: #f5f8ff;
  --success-soft: #eaf8ef;
}
body { background: #f8fafc; color: #172033; }
a { color: var(--brand); }
.navbar-brand a, footer a { color: inherit; }
.hero {
  min-height: 72vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #eef5ff 0%, #ffffff 48%, #eefbf2 100%);
}
.hero h1 { font-size: clamp(2.4rem, 5vw, 4.8rem); line-height: 1.02; letter-spacing: 0; }
.section { padding: 72px 0; }
.feature-card, .metric-card, .auth-card {
  background: white;
  border: 1px solid #e5e9f2;
  border-radius: 8px;
  box-shadow: 0 14px 30px rgba(33, 54, 92, .06);
}
.feature-card { padding: 24px; height: 100%; }
.metric-card { padding: 20px; }
.metric-card .value { font-size: 2rem; font-weight: 800; }
.app-shell { display: grid; grid-template-columns: 240px 1fr; min-height: calc(100vh - 64px); }
.app-sidebar { background: #101828; padding: 20px; }
.app-sidebar a { display: block; color: #dbe4ff; padding: 10px 12px; border-radius: 6px; text-decoration: none; }
.app-sidebar a:hover { background: rgba(255,255,255,.09); color: white; }
.app-content { padding: 28px; min-width: 0; }
.table-card { background: white; border: 1px solid #e5e9f2; border-radius: 8px; overflow: hidden; }
.btn-primary { background: var(--brand); border-color: var(--brand); }
.btn-primary:hover { background: var(--brand-dark); border-color: var(--brand-dark); }
.badge-platform { background: #eef2ff; color: #233b8f; }
.footer a { color: #c9d8ff; }
@media (max-width: 900px) {
  .app-shell { grid-template-columns: 1fr; }
  .app-sidebar { display: flex; overflow-x: auto; gap: 8px; }
  .app-sidebar a { white-space: nowrap; }
  .app-content { padding: 18px; }
}