:root {
  --crm-sidebar: #1e293b;
  --crm-accent: #0ea5e9;
  --crm-bg: #f1f5f9;
}
body { background: var(--crm-bg); }
.brand-title { font-family: "Segoe UI", system-ui, sans-serif; letter-spacing: .02em; color: #0f172a; }
.login-page {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #0ea5e9 100%);
}
.login-box { width: 100%; max-width: 420px; padding: 1rem; }
.main-sidebar { background: var(--crm-sidebar) !important; }
.small-box { border-radius: .5rem; padding: 1rem; color: #fff; }
.small-box .inner h3 { font-size: 2rem; margin: 0; }
.kanban-card { cursor: grab; }
.chat-thread { background: #fff; }
#overlay-loader {
  display: none; position: fixed; inset: 0; background: rgba(15,23,42,.35);
  z-index: 9999; align-items: center; justify-content: center;
}
#overlay-loader.active { display: flex; }