/* ==========================================================================
   2. MAIN CONTENT AREA (KHUNG NỘI DUNG CHÍNH)
   ========================================================================== */
.app-main-content {
  flex: 1;
  background: var(--bg-page);
  padding: 28px 36px 40px 36px;
  min-width: 0;
  overflow-y: auto;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

.tab-pane {
  display: none;
  animation: fadeIn 0.15s ease-out;
}

.tab-pane.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(2px); }
  to { opacity: 1; transform: translateY(0); }
}

/* TIÊU ĐỀ TRANG CHUNG */
.content-header-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 20px;
}

.page-title {
  font-size: 24px;
  font-weight: 800;
  color: var(--text-heading);
  letter-spacing: -0.3px;
  line-height: 1.25;
}

.page-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

.status-pill-green {
  background: var(--green-status-light);
  color: var(--green-status);
  border-radius: 20px;
  padding: 5px 14px;
  font-size: 12px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.pill-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green-status);
}

/* THẺ TRẮNG TIÊU CHUẨN (CONTENT CARD) */
.content-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 16px;
  padding: 22px 24px;
  box-shadow: var(--shadow-card);
}