body { min-height: 100vh; }
.navbar .nav-link.active { font-weight: 700; }
.card { overflow: hidden; }
.hover-card { transition: transform .2s ease, box-shadow .2s ease; }
.hover-card:hover { transform: translateY(-2px); }
.table td, .table th { vertical-align: middle; }
.avatar-placeholder {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: #e9ecef;
  color: #6c757d;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.5rem;
}
.avatar-thumb {
  width: 56px;
  height: 56px;
  object-fit: cover;
  border-radius: 50%;
  border: 2px solid #fff;
  box-shadow: 0 0 0 1px rgba(0,0,0,.08);
}
@media (max-width: 576px) {
  .container { padding-left: 14px; padding-right: 14px; }
}