body { background: #f5f7fb; color: #1f2937; }
.sidebar { min-height: 100vh; }
.menu-links .list-group-item { border: 0; background: transparent; color: rgba(255,255,255,.88); border-radius: 12px !important; margin-bottom: .35rem; }
.menu-links .list-group-item:hover { background: rgba(255,255,255,.1); color: #fff; }
.card { border-radius: 18px; }
.stat-card { border: 0; }
.auth-page { background: linear-gradient(135deg, #0f172a 0%, #1d4ed8 100%); }
.reply-admin { background: #f8fafc; border-left: 4px solid #1d4ed8 !important; }
.reply-client { background: #ffffff; border-left: 4px solid #16a34a !important; }
.table td, .table th { vertical-align: middle; }