:root {
  /* Cores Principais (Padrão Corporativo Moderno) */
  --primary-color: #2563EB; /* Royal Blue */
  --primary-hover: #1D4ED8;
  --bg-body: #F3F4F6; /* Cool Gray 100 */
  --bg-sidebar: #FFFFFF;
  --bg-card: #FFFFFF;
  
  /* Texto */
  --text-main: #111827; /* Gray 900 */
  --text-secondary: #6B7280; /* Gray 500 */
  --text-muted: #9CA3AF; /* Gray 400 */
  
  /* Bordas e Divisores */
  --border-color: #E5E7EB; /* Gray 200 */
  
  /* Status Colors */
  --success: #10B981;
  --success-bg: #D1FAE5;
  --warning: #F59E0B;
  --warning-bg: #FEF3C7;
  --error: #EF4444;
  --error-bg: #FEE2E2;
  
  /* KPIs Gradients */
  --grad-blue: linear-gradient(135deg, #3B82F6, #2563EB);
  --grad-purple: linear-gradient(135deg, #8B5CF6, #7C3AED);
  --grad-green: linear-gradient(135deg, #10B981, #059669);
  --grad-orange: linear-gradient(135deg, #F59E0B, #D97706);
}

* { box-sizing: border-box; margin: 0; padding: 0; outline: none; }
body { font-family: 'Inter', sans-serif; background-color: var(--bg-body); color: var(--text-main); height: 100vh; overflow: hidden; }

/* Layout da Aplicação */
.app-layout { display: flex; height: 100vh; width: 100vw; }

/* Sidebar */
.sidebar {
  width: 260px;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  transition: width 0.3s;
}

.sidebar-header { padding: 24px; display: flex; align-items: center; gap: 12px; border-bottom: 1px solid var(--border-color); }
.logo-icon { font-size: 24px; animation: bounce 2s infinite; }
.sidebar-header h1 { font-size: 18px; font-weight: 700; color: var(--text-main); letter-spacing: -0.5px; }

.sidebar-nav { flex: 1; padding: 24px 16px; display: flex; flex-direction: column; gap: 8px; }
.nav-item {
  display: flex; align-items: center; gap: 12px; padding: 12px 16px;
  color: var(--text-secondary); text-decoration: none; border-radius: 8px;
  font-weight: 500; transition: all 0.2s;
}
.nav-item:hover { background-color: #F9FAFB; color: var(--primary-color); }
.nav-item.active { background-color: #EFF6FF; color: var(--primary-color); }

.sidebar-footer { padding: 24px; border-top: 1px solid var(--border-color); }
.status-badge {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px;
  border-radius: 20px; font-size: 12px; font-weight: 600;
  background: var(--success-bg); color: var(--success);
}
.dot { width: 8px; height: 8px; border-radius: 50%; background-color: currentColor; animation: pulse 2s infinite; }

/* Main Content */
.main-content { flex: 1; overflow-y: auto; padding: 32px; display: flex; flex-direction: column; gap: 24px; }

.top-bar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.page-title { font-size: 24px; font-weight: 700; color: var(--text-main); }

/* KPI Grid */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; }
.kpi-card {
  background: white; border-radius: 12px; padding: 24px;
  border: 1px solid var(--border-color); box-shadow: 0 2px 4px rgba(0,0,0,0.02);
  display: flex; align-items: center; gap: 16px; transition: transform 0.2s;
}
.kpi-card:hover { transform: translateY(-2px); box-shadow: 0 4px 6px rgba(0,0,0,0.05); }

.kpi-icon {
  width: 48px; height: 48px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; color: white;
}
.kpi-icon.blue { background: var(--grad-blue); box-shadow: 0 4px 6px rgba(59, 130, 246, 0.3); }
.kpi-icon.purple { background: var(--grad-purple); box-shadow: 0 4px 6px rgba(139, 92, 246, 0.3); }
.kpi-icon.green { background: var(--grad-green); box-shadow: 0 4px 6px rgba(16, 185, 129, 0.3); }
.kpi-icon.orange { background: var(--grad-orange); box-shadow: 0 4px 6px rgba(245, 158, 11, 0.3); }

.kpi-info { display: flex; flex-direction: column; }
.kpi-info .label { font-size: 13px; color: var(--text-secondary); font-weight: 500; }
.kpi-info .value { font-size: 24px; font-weight: 700; color: var(--text-main); margin-top: 4px; }

/* Content Card */
.content-card {
  background: white; border-radius: 12px; border: 1px solid var(--border-color);
  box-shadow: 0 2px 4px rgba(0,0,0,0.02); display: flex; flex-direction: column;
}
.card-header {
  padding: 20px 24px; border-bottom: 1px solid var(--border-color);
  display: flex; justify-content: space-between; align-items: center;
}
.card-header h3 { font-size: 16px; font-weight: 600; color: var(--text-main); }

.search-box input {
  padding: 8px 12px; border: 1px solid var(--border-color); border-radius: 6px;
  font-size: 14px; width: 240px; transition: border-color 0.2s;
}
.search-box input:focus { border-color: var(--primary-color); }

/* Table */
.table-responsive { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; }
.data-table th {
  text-align: left; padding: 16px 24px; background: #F9FAFB;
  font-size: 12px; font-weight: 600; text-transform: uppercase; color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
}
.data-table td {
  padding: 16px 24px; border-bottom: 1px solid var(--border-color);
  font-size: 14px; color: var(--text-main); vertical-align: middle;
}
.data-table tbody tr:hover { background-color: #F9FAFB; }
.text-center { text-align: center; }

.lead-info { display: flex; flex-direction: column; }
.lead-name { font-weight: 600; color: var(--text-main); }
.lead-phone { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }

.badge-instancia { background: #EEF2FF; color: #4F46E5; padding: 4px 8px; border-radius: 6px; font-size: 12px; font-weight: 500; }

.status-indicator-sm { width: 10px; height: 10px; border-radius: 50%; display: inline-block; margin-right: 6px; }
.status-indicator-sm.active { background-color: var(--success); box-shadow: 0 0 0 2px var(--success-bg); }
.status-indicator-sm.idle { background-color: var(--warning); box-shadow: 0 0 0 2px var(--warning-bg); }
.status-indicator-sm.inactive { background-color: var(--text-muted); }

.btn-icon { background: none; border: none; font-size: 16px; cursor: pointer; padding: 6px; border-radius: 4px; transition: bg 0.2s; }
.btn-icon:hover { background-color: #F3F4F6; }

/* Logs Section */
.logs-section {
  background: white; border-radius: 12px; border: 1px solid var(--border-color);
  overflow: hidden; transition: max-height 0.3s;
}
.logs-section.collapsed .logs-container { display: none; }
.section-header-sm {
  padding: 12px 24px; background: #F9FAFB; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center;
}
.section-header-sm h4 { font-size: 13px; font-weight: 600; color: var(--text-secondary); text-transform: uppercase; }
.logs-container { padding: 16px; max-height: 200px; overflow-y: auto; background: #111827; color: #10B981; font-family: monospace; font-size: 12px; }
.logs-actions { padding: 8px 24px; border-top: 1px solid var(--border-color); display: flex; justify-content: flex-end; }

/* Slide Over */
.slide-over-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,0.3); z-index: 40;
  opacity: 0; pointer-events: none; transition: opacity 0.3s;
}
.slide-over-backdrop.open { opacity: 1; pointer-events: auto; }

.slide-over {
  position: fixed; top: 0; right: 0; bottom: 0; width: 440px;
  background: white; box-shadow: -4px 0 16px rgba(0,0,0,0.1); z-index: 50;
  transform: translateX(100%); transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex; flex-direction: column;
}
.slide-over.open { transform: translateX(0); }

.slide-over-header {
  padding: 24px; border-bottom: 1px solid var(--border-color);
  display: flex; justify-content: space-between; align-items: flex-start;
}
.header-info h3 { font-size: 18px; font-weight: 700; color: var(--text-main); }
.lead-tag { display: inline-block; background: #F3F4F6; padding: 4px 8px; border-radius: 4px; font-size: 12px; color: var(--text-secondary); margin-top: 4px; }
.close-btn { background: none; border: none; font-size: 20px; cursor: pointer; color: var(--text-muted); }
.close-btn:hover { color: var(--text-main); }

.slide-over-content { flex: 1; overflow-y: auto; padding: 24px; background: #F9FAFB; display: flex; flex-direction: column; gap: 16px; }
.slide-over-footer { padding: 16px 24px; border-top: 1px solid var(--border-color); display: flex; justify-content: flex-end; }

/* Chat Bubbles */
.chat-bubble { max-width: 85%; padding: 12px 16px; border-radius: 12px; font-size: 14px; line-height: 1.5; position: relative; }
.chat-bubble.human { align-self: flex-end; background: var(--primary-color); color: white; border-bottom-right-radius: 2px; }
.chat-bubble.ai { align-self: flex-start; background: white; color: var(--text-main); border: 1px solid var(--border-color); border-bottom-left-radius: 2px; }
.chat-bubble.tool { align-self: center; width: 100%; background: #FEF3C7; color: #92400E; font-size: 12px; border-radius: 8px; border: 1px dashed #F59E0B; }

.chat-meta { font-size: 10px; margin-top: 4px; opacity: 0.7; text-align: right; display: block; }

/* Components */
.btn-secondary { background: white; border: 1px solid var(--border-color); padding: 8px 16px; border-radius: 6px; cursor: pointer; font-weight: 500; font-size: 13px; color: var(--text-main); transition: all 0.2s; }
.btn-secondary:hover { background: #F9FAFB; border-color: #D1D5DB; }

.btn-danger { background: var(--error-bg); color: var(--error); border: none; padding: 8px 16px; border-radius: 6px; cursor: pointer; font-weight: 600; font-size: 13px; transition: opacity 0.2s; }
.btn-danger:hover { opacity: 0.8; }

.btn-text { background: none; border: none; color: var(--text-secondary); font-size: 12px; cursor: pointer; text-decoration: underline; }

.empty-state { padding: 40px; text-align: center; color: var(--text-secondary); }
.spinner { width: 20px; height: 20px; border: 2px solid #E5E7EB; border-top-color: var(--primary-color); border-radius: 50%; animation: spin 1s infinite linear; display: inline-block; vertical-align: middle; margin-right: 8px; }

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes bounce { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-3px); } }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); } 70% { box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); } 100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); } }

/* Modal */
.modal { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 100; align-items: center; justify-content: center; opacity: 0; transition: opacity 0.2s; pointer-events: none; }
.modal.show { display: flex; opacity: 1; pointer-events: auto; }
.modal-content { background: white; border-radius: 12px; width: 400px; padding: 24px; box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1); transform: scale(0.95); transition: transform 0.2s; }
.modal.show .modal-content { transform: scale(1); }
.modal-header h3 { font-size: 18px; font-weight: 600; color: var(--text-main); }
.modal-body { margin: 16px 0; color: var(--text-secondary); line-height: 1.5; }
.modal-footer { display: flex; justify-content: flex-end; gap: 12px; }

/* Responsive */
@media (max-width: 768px) {
  .app-layout { flex-direction: column; overflow-y: auto; height: auto; }
  .sidebar { width: 100%; height: auto; border-right: none; border-bottom: 1px solid var(--border-color); }
  .sidebar-nav { flex-direction: row; overflow-x: auto; padding: 12px; }
  .main-content { overflow-y: visible; padding: 16px; }
  .slide-over { width: 100%; top: 60px; /* Header height hint */ }
}