:root {
  color-scheme: dark;
  --bg-base: #0a0d14;
  --bg-surface: rgba(18, 24, 38, 0.7);
  --bg-surface-hover: rgba(28, 36, 56, 0.85);
  --bg-card: rgba(16, 22, 36, 0.65);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(0, 242, 254, 0.3);

  --primary: #3b82f6;
  --primary-glow: rgba(59, 130, 246, 0.25);
  --accent-cyan: #00f2fe;
  --accent-purple: #8b5cf6;
  --accent-green: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --shadow-card: 0 10px 30px -5px rgba(0, 0, 0, 0.4), 0 0 1px 1px rgba(255, 255, 255, 0.05);
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

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

body {
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-base);
  background-image: 
    radial-gradient(at 0% 0%, rgba(59, 130, 246, 0.12) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(139, 92, 246, 0.12) 0px, transparent 50%);
  color: var(--text-main);
  min-height: 100vh;
  line-height: 1.5;
  overflow-x: hidden;
  scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
  scrollbar-width: thin;
}

/* Glassmorphism Cards */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  transition: border-color var(--transition-normal), transform var(--transition-fast);
}

.glass-card:hover {
  border-color: rgba(255, 255, 255, 0.15);
}

/* Modal Overlay */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(5, 8, 15, 0.85);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  transition: opacity var(--transition-normal);
}

.modal-overlay.hidden {
  opacity: 0;
  pointer-events: none;
  display: none;
}

/* Login Card */
.login-card {
  width: 100%;
  max-width: 440px;
  padding: 36px;
  text-align: center;
  background: rgba(18, 24, 38, 0.9);
}

.brand-badge {
  display: inline-block;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: rgba(59, 130, 246, 0.15);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.login-card h2 {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.subtitle {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.input-group {
  text-align: left;
  margin-bottom: 18px;
}

.input-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 6px;
}

input[type="text"],
input[type="password"] {
  width: 100%;
  padding: 12px 16px;
  background: rgba(10, 15, 25, 0.8);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

input[type="text"]:focus,
input[type="password"]:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.error-msg {
  color: var(--accent-rose);
  font-size: 0.85rem;
  margin-bottom: 14px;
  min-height: 20px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  border: none;
  transition: all var(--transition-fast);
}

.btn-primary {
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  color: #fff;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-surface);
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-surface-hover);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-block {
  width: 100%;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.8rem;
  border-radius: 6px;
}

.btn-toggle-on {
  background: rgba(16, 185, 129, 0.2);
  color: var(--accent-green);
  border: 1px solid rgba(16, 185, 129, 0.4);
}

.btn-toggle-on:hover {
  background: rgba(16, 185, 129, 0.3);
}

.btn-toggle-off {
  background: rgba(244, 63, 94, 0.2);
  color: var(--accent-rose);
  border: 1px solid rgba(244, 63, 94, 0.4);
}

.btn-toggle-off:hover {
  background: rgba(244, 63, 94, 0.3);
}

/* App Layout */
.app-layout {
  display: flex;
  min-height: 100vh;
}

.app-layout.hidden {
  display: none;
}

/* Sidebar */
.sidebar {
  width: 260px;
  background: rgba(12, 16, 26, 0.85);
  backdrop-filter: blur(20px);
  border-right: 1px solid var(--border-color);
  padding: 24px;
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 24px;
}

.brand-icon {
  font-size: 1.8rem;
}

.brand-text h1 {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.brand-text .sub {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.nav-menu {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
  transition: all var(--transition-fast);
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
}

.nav-item.active {
  background: rgba(59, 130, 246, 0.15);
  color: var(--primary);
  border-left: 3px solid var(--primary);
}

.sidebar-footer {
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.admin-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 8px var(--accent-green);
}

.btn-logout {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
}

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

/* Main Content Area */
.main-content {
  flex: 1;
  padding: 32px;
  max-width: 1300px;
  margin: 0 auto;
  width: 100%;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}

.page-title h2 {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.refresh-indicator {
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* Views Management */
.view-section {
  display: none;
  animation: fadeIn 0.2s ease;
}

.view-section.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}

.stat-card {
  padding: 22px;
}

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

.stat-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}

.stat-icon {
  font-size: 1.3rem;
}

.stat-value {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 4px;
}

.stat-desc {
  font-size: 0.78rem;
  color: var(--text-dim);
}

/* Section Card */
.section-card {
  padding: 24px;
  margin-bottom: 28px;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.card-header h3 {
  font-size: 1.15rem;
  font-weight: 700;
}

.badge {
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-muted);
}

/* Live Staff Grid */
.live-staff-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

.staff-live-item {
  padding: 16px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.staff-info-tag {
  font-weight: 700;
  font-size: 0.95rem;
}

.staff-time {
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* Tables */
.table-card {
  padding: 24px;
}

.flex-header {
  flex-wrap: wrap;
  gap: 16px;
}

.search-box {
  position: relative;
  min-width: 280px;
}

.search-box input {
  padding-right: 36px;
}

.search-icon {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-dim);
  pointer-events: none;
}

.table-responsive {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  text-align: left;
}

.data-table th {
  padding: 12px 16px;
  color: var(--text-dim);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border-color);
}

.data-table td {
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  vertical-align: middle;
}

.data-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.mono {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
}

/* Status Badges */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
}

.pill-active {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-green);
}

.pill-waiting {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-amber);
}

.pill-closed {
  background: rgba(148, 163, 184, 0.15);
  color: var(--text-dim);
}

/* Transcript Viewer Modal */
.transcript-modal-card {
  width: 90vw;
  max-width: 1000px;
  height: 85vh;
  display: flex;
  flex-direction: column;
  padding: 0;
  overflow: hidden;
}

.transcript-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  background: rgba(18, 24, 38, 0.95);
  border-bottom: 1px solid var(--border-color);
}

.btn-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 4px 8px;
}

.btn-close:hover {
  color: #fff;
}

.transcript-frame-wrapper {
  flex: 1;
  background: #1e1f22;
}

.transcript-frame-wrapper iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* User & Permission Management Styles */
.user-modal-card {
  width: 90vw;
  max-width: 580px;
  padding: 28px;
  background: rgba(18, 24, 38, 0.95);
}

.form-row {
  display: flex;
  gap: 16px;
  margin-bottom: 16px;
}

.form-row .input-group {
  flex: 1;
  margin-bottom: 0;
}

@media (max-width: 600px) {
  .form-row {
    flex-direction: column;
    gap: 12px;
  }
}

.input-with-button {
  display: flex;
  gap: 8px;
}

.input-with-button input {
  flex: 1;
}

.custom-select {
  width: 100%;
  padding: 12px 16px;
  background: rgba(10, 13, 20, 0.7);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 0.95rem;
  font-family: inherit;
  outline: none;
  transition: border-color var(--transition-fast);
}

.custom-select:focus {
  border-color: var(--primary);
}

.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
  margin-top: 8px;
  background: rgba(0, 0, 0, 0.2);
  padding: 12px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
  cursor: pointer;
  user-select: none;
}

.checkbox-item input[type="checkbox"] {
  accent-color: var(--primary);
  width: 16px;
  height: 16px;
  cursor: pointer;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 24px;
}

.perm-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-muted);
  margin: 2px;
}

.perm-badge.active {
  background: rgba(59, 130, 246, 0.15);
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 242, 254, 0.2);
}

.role-badge-admin {
  display: inline-block;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  background: rgba(244, 63, 94, 0.15);
  color: var(--accent-rose);
  border: 1px solid rgba(244, 63, 94, 0.3);
}

.role-badge-staff {
  display: inline-block;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-green);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.key-snippet {
  font-family: 'JetBrains Mono', monospace;
  background: rgba(0, 0, 0, 0.3);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.8rem;
  color: var(--accent-amber);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.copy-btn {
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 0.75rem;
  padding: 2px;
  transition: color var(--transition-fast);
}

.copy-btn:hover {
  color: #fff;
}

.nav-item.admin-only.hidden {
  display: none !important;
}