:root {
  --brand: #1f4e79;
  --brand-dark: #163a5c;
}

.bg-primary-dark { background-color: var(--brand) !important; }
.btn-primary { background-color: var(--brand); border-color: var(--brand); }
.btn-primary:hover { background-color: var(--brand-dark); border-color: var(--brand-dark); }
.text-primary { color: var(--brand) !important; }

.kpi-card { transition: transform .15s; }
.kpi-card:hover { transform: translateY(-2px); }

/* Heatmap */
.heatmap td { width: 44px; height: 30px; font-size: .75rem; }

/* Scheduler weekly board */
.schedule-grid td.slot {
  height: 56px;
  min-width: 150px;
  vertical-align: top;
  padding: 2px;
}
.schedule-grid td.slot.drag-over { background: #e3f0ff; outline: 2px dashed var(--brand); }
.class-card {
  background: var(--brand);
  color: #fff;
  border-radius: 6px;
  padding: 3px 6px;
  font-size: .72rem;
  margin-bottom: 2px;
  cursor: grab;
  line-height: 1.25;
}
.class-card .meta { opacity: .85; }
.class-card.conflicted { background: #b02a37; }
.class-card.dragging { opacity: .4; }

/* Workflow stepper */
.workflow-steps .step-dot {
  width: 26px; height: 26px; line-height: 26px;
  border-radius: 50%; background: #dee2e6; color: #555;
  margin: 0 auto; font-size: .75rem; font-weight: 600;
}
.workflow-steps .step.done .step-dot { background: var(--brand); color: #fff; }
.workflow-steps .step-label { font-size: .6rem; color: #777; margin-top: 2px; }

/* AI chat */
.chat-msg { display: flex; margin-bottom: .6rem; }
.chat-msg.user { justify-content: flex-end; }
.chat-msg .bubble {
  max-width: 80%;
  padding: .5rem .75rem;
  border-radius: 12px;
  font-size: .875rem;
  white-space: pre-wrap;
}
.chat-msg.user .bubble { background: var(--brand); color: #fff; border-bottom-right-radius: 2px; }
.chat-msg.assistant .bubble { background: #eef2f7; border-bottom-left-radius: 2px; }