.nav-btn { padding: 0.5rem 0.9rem; border-radius: 0.5rem; transition: background 0.15s; cursor: pointer; }
.nav-btn:hover { background: rgba(255,255,255,0.08); }
.nav-btn.active { background: #ff6b57; }

.stat-card { background: white; border-radius: 1rem; padding: 1.25rem; box-shadow: 0 1px 3px rgba(0,0,0,0.06); border-top: 3px solid #172E57; }
.stage-pill { display:inline-block; padding: 0.15rem 0.6rem; border-radius: 999px; font-size: 0.75rem; font-weight: 600; }
.stage-new { background:#e2e8f0; color:#334155; }
.stage-initial_sent { background:#dbeafe; color:#1e40af; }
.stage-followup_1_sent, .stage-followup_2_sent, .stage-followup_3_sent, .stage-followup_4_sent, .stage-followup_5_sent { background:#ffe4e0; color:#c2410c; }
.stage-replied { background:#dcfce7; color:#166534; }

table.data-table { width: 100%; border-collapse: collapse; }
table.data-table th { text-align:left; font-size:0.75rem; text-transform:uppercase; color:#64748b; padding: 0.5rem 0.75rem; border-bottom: 1px solid #e2e8f0; }
table.data-table td { padding: 0.6rem 0.75rem; border-bottom: 1px solid #f1f5f9; font-size: 0.875rem; }