:root { --sidebar-width: 260px; }
body { background: #f7f7fb; }
.sidebar {
  width: var(--sidebar-width);
  min-height: 100vh;
  position: sticky; top: 0;
}
.content { padding: 18px 18px 40px; }
.card { border: 0; box-shadow: 0 6px 18px rgba(0,0,0,.06); }
.table thead th { font-size: .85rem; text-transform: uppercase; letter-spacing: .04em; }
.badge-soft { background: rgba(13,110,253,.12); color: #0d6efd; }
.badge-soft-success { background: rgba(25,135,84,.12); color: #198754; }
.badge-soft-danger { background: rgba(220,53,69,.12); color: #dc3545; }
.badge-soft-warning { background: rgba(255,193,7,.18); color: #a67c00; }
.nav-pills .nav-link.active { box-shadow: 0 10px 20px rgba(13,110,253,.22); }
.small-muted { color: #6c757d; font-size: .9rem; }
.kpi { font-weight: 700; font-size: 1.5rem; }
.pointer { cursor: pointer; }
.chat-box { height: 420px; overflow: auto; background: #fff; border-radius: 12px; padding: 12px; }
.chat-msg { max-width: 78%; padding: 10px 12px; border-radius: 14px; margin-bottom: 10px; }
.chat-me { margin-left: auto; background: rgba(13,110,253,.12); }
.chat-other { background: rgba(33,37,41,.06); }
.file-pill { font-size: .85rem; background: rgba(108,117,125,.12); border-radius: 999px; padding: 2px 10px; display: inline-block; }
.form-section-title { font-weight: 700; margin: 10px 0 6px; }
.footer-note { color: #6c757d; font-size: .85rem; }