:root {
  --bg-body: #090d16;
  --bg-sidebar: #0d1322;
  --bg-card: #121a2d;
  --bg-card-hover: #17223b;
  --bg-input: #0b101d;
  --border: #1e2a45;
  --border-light: #2a3b60;
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-soft: rgba(59, 130, 246, 0.14);
  --success: #10b981;
  --success-soft: rgba(16, 185, 129, 0.14);
  --warning: #f59e0b;
  --warning-soft: rgba(245, 158, 11, 0.14);
  --danger: #ef4444;
  --danger-soft: rgba(239, 68, 68, 0.14);
  --purple: #8b5cf6;
  --purple-soft: rgba(139, 92, 246, 0.14);
  --radius: 10px;
  --radius-sm: 6px;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg-body);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  overflow-x: hidden;
}

/* Sidebar */
.sidebar {
  width: 260px;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 50;
}

.brand-header {
  padding: 18px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 16px;
  color: #fff;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.35);
}

.brand-title {
  font-weight: 700;
  font-size: 15px;
  letter-spacing: -0.01em;
}

.brand-sub {
  font-size: 11px;
  color: var(--text-muted);
}

.nav-section-label {
  padding: 16px 20px 6px;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  font-weight: 700;
}

.nav-list {
  list-style: none;
  padding: 0 10px;
  flex: 1;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  margin-bottom: 3px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  cursor: pointer;
  font-weight: 500;
  transition: all 0.15s ease;
  user-select: none;
}

.nav-item:hover {
  background: var(--bg-card);
  color: var(--text-main);
}

.nav-item.active {
  background: var(--accent-soft);
  color: #60a5fa;
  font-weight: 600;
}

.nav-item-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-badge {
  font-size: 11px;
  padding: 1px 7px;
  border-radius: 99px;
  background: var(--bg-card-hover);
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.nav-item.active .nav-badge {
  background: var(--accent);
  color: #fff;
}

.sidebar-footer {
  padding: 14px 16px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-muted);
}

.portal-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin-bottom: 10px;
}

.portal-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 5px 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  text-decoration: none;
  font-size: 11px;
  font-weight: 500;
  transition: all 0.15s;
}

.portal-pill:hover {
  border-color: var(--accent);
  color: #fff;
}

/* Main Content Area */
.main-wrap {
  margin-left: 260px;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.topbar {
  height: 60px;
  background: rgba(13, 19, 34, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 40;
}

.topbar-title {
  font-size: 17px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.content {
  padding: 24px 28px 60px;
  max-width: 1680px;
}

/* Grid & Cards */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 14px;
  margin-bottom: 22px;
}

.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.kpi-label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.kpi-value {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.02em;
  font-family: var(--font-mono);
}

.kpi-sub {
  font-size: 11px;
  color: var(--text-dim);
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  gap: 12px;
  flex-wrap: wrap;
}

.card-title {
  font-size: 15px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

@media (max-width: 1200px) {
  .grid-2, .grid-3 {
    grid-template-columns: 1fr;
  }
}

/* Sub-tabs */
.subtabs {
  display: flex;
  gap: 8px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 10px;
  flex-wrap: wrap;
}

.subtab-btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  transition: all 0.15s;
}

.subtab-btn:hover {
  color: var(--text-main);
  border-color: var(--border-light);
}

.subtab-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* Tables */
.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th {
  text-align: left;
  padding: 10px 12px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

td {
  padding: 11px 12px;
  border-bottom: 1px solid rgba(30, 42, 69, 0.55);
  vertical-align: middle;
}

tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 99px;
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}

.badge-success { background: var(--success-soft); color: #34d399; }
.badge-warning { background: var(--warning-soft); color: #fbbf24; }
.badge-danger  { background: var(--danger-soft);  color: #f87171; }
.badge-info    { background: var(--accent-soft);  color: #60a5fa; }
.badge-purple  { background: var(--purple-soft);  color: #a78bfa; }
.badge-neutral { background: rgba(148,163,184,0.14); color: #cbd5e1; }

/* Buttons & Inputs */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-light);
  background: var(--bg-card-hover);
  color: var(--text-main);
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s;
}

.btn:hover {
  border-color: var(--accent);
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-success {
  background: var(--success);
  border-color: var(--success);
  color: #fff;
}

.btn-danger {
  background: var(--danger-soft);
  border-color: var(--danger);
  color: #f87171;
}

.btn-sm {
  padding: 4px 9px;
  font-size: 11.5px;
}

.input, select, textarea {
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  color: var(--text-main);
  padding: 8px 11px;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 13px;
  outline: none;
}

.input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
}

.form-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: flex-end;
  margin-bottom: 14px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.form-group label {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 600;
}

.mono {
  font-family: var(--font-mono);
}

/* Chat Transcript Box */
.chat-transcript {
  max-height: 420px;
  overflow-y: auto;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.chat-bubble {
  max-width: 82%;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 12.5px;
  line-height: 1.45;
  white-space: pre-wrap;
}

.chat-bubble.user {
  align-self: flex-start;
  background: #1e293b;
  border: 1px solid #334155;
}

.chat-bubble.assistant {
  align-self: flex-end;
  background: rgba(59, 130, 246, 0.16);
  border: 1px solid rgba(59, 130, 246, 0.35);
}

.chat-bubble.human_agent {
  align-self: flex-end;
  background: rgba(16, 185, 129, 0.18);
  border: 1px solid rgba(16, 185, 129, 0.4);
}

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(5, 8, 15, 0.78);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
}

.modal-backdrop.open {
  display: flex;
}

.modal-box {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  width: 100%;
  max-width: 720px;
  max-height: 88vh;
  overflow-y: auto;
  padding: 22px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
}

/* Toast */
#toast-container {
  position: fixed;
  bottom: 22px;
  right: 22px;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  background: #1e293b;
  border-left: 4px solid var(--accent);
  color: #fff;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  font-size: 13px;
  max-width: 400px;
}