/* ==========================================================================
   Dubai Autonomous Mail & AI Intelligence Hub - Design System
   Aesthetics: Deep luxury glassmorphism, HSL color tokens, micro-animations
   ========================================================================== */

:root {
  --bg-primary: #070a13;
  --bg-secondary: #0b1120;
  --bg-card: rgba(15, 23, 42, 0.75);
  --bg-card-hover: rgba(30, 41, 59, 0.7);
  --bg-glass: rgba(255, 255, 255, 0.03);
  
  --border-subtle: rgba(51, 65, 85, 0.45);
  --border-glow: rgba(56, 189, 248, 0.35);
  --border-emerald: rgba(16, 185, 129, 0.35);
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --accent-cyan: #0284c7;
  --accent-cyan-glow: rgba(2, 132, 199, 0.25);
  --accent-emerald: #10b981;
  --accent-emerald-glow: rgba(16, 185, 129, 0.25);
  --accent-rose: #f43f5e;
  --accent-rose-glow: rgba(244, 63, 94, 0.25);
  --accent-amber: #f59e0b;
  --accent-indigo: #6366f1;
  --accent-purple: #a855f7;
  
  --font-heading: 'Outfit', -apple-system, sans-serif;
  --font-body: 'Inter', -apple-system, sans-serif;
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 20px rgba(56, 189, 248, 0.15);
}

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

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  background-image: 
    radial-gradient(circle at 15% 10%, rgba(2, 132, 199, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 85% 25%, rgba(16, 185, 129, 0.06) 0%, transparent 40%),
    radial-gradient(circle at 50% 80%, rgba(99, 102, 241, 0.05) 0%, transparent 50%);
  background-attachment: fixed;
}

/* Container & Header */
.app-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px 20px 60px 20px;
}

header.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, #0284c7, #10b981);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.4);
}

.brand-title {
  font-family: var(--font-heading);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(to right, #f8fafc, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-subtitle {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.heartbeat-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid var(--border-emerald);
  padding: 5px 12px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  color: #34d399;
}

.pulse-dot {
  width: 7px;
  height: 7px;
  background: #34d399;
  border-radius: 50%;
  box-shadow: 0 0 10px #34d399;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.3); opacity: 1; box-shadow: 0 0 14px #34d399; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

/* Tenant Control Bar */
.tenant-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 14px 20px;
  margin-bottom: 24px;
}

.tenant-selector-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.tenant-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
}

select.custom-select {
  background: #0f172a;
  color: var(--text-primary);
  border: 1px solid #334155;
  padding: 8px 14px;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  outline: none;
  transition: all 0.2s ease;
}

select.custom-select:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 2px var(--accent-cyan-glow);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, #0284c7, #0369a1);
  color: #fff;
  box-shadow: 0 2px 10px rgba(2, 132, 199, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #0ea5e9, #0284c7);
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.5);
  transform: translateY(-1px);
}

.btn-emerald {
  background: linear-gradient(135deg, #059669, #047857);
  color: #fff;
}

.btn-emerald:hover {
  background: linear-gradient(135deg, #10b981, #059669);
  transform: translateY(-1px);
}

.btn-danger {
  background: linear-gradient(135deg, #dc2626, #b91c1c);
  color: #fff;
}

.btn-danger:hover {
  background: linear-gradient(135deg, #ef4444, #dc2626);
  transform: translateY(-1px);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  border-color: #475569;
}

.btn-sm {
  padding: 5px 10px;
  font-size: 11px;
}

/* KPI Deck */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.kpi-card {
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  position: relative;
  overflow: hidden;
  transition: all 0.25s ease;
}

.kpi-card:hover {
  border-color: rgba(56, 189, 248, 0.4);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.kpi-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(to right, transparent, var(--accent-cyan), transparent);
}

.kpi-card.kpi-emerald::before {
  background: linear-gradient(to right, transparent, var(--accent-emerald), transparent);
}

.kpi-card.kpi-rose::before {
  background: linear-gradient(to right, transparent, var(--accent-rose), transparent);
}

.kpi-card.kpi-indigo::before {
  background: linear-gradient(to right, transparent, var(--accent-indigo), transparent);
}

.kpi-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.kpi-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.kpi-icon {
  font-size: 18px;
  opacity: 0.8;
}

.kpi-value {
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}

.kpi-value.text-emerald { color: #34d399; }
.kpi-value.text-rose { color: #fb7185; }
.kpi-value.text-cyan { color: #38bdf8; }
.kpi-value.text-indigo { color: #818cf8; }

.kpi-caption {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Tabs Navigation */
.tabs-nav {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 10px;
  margin-bottom: 20px;
  overflow-x: auto;
}

.tab-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  padding: 8px 16px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.tab-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

.tab-btn.active {
  color: #38bdf8;
  background: rgba(2, 132, 199, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.3);
}

/* Tab Content Containers */
.tab-content {
  display: none;
}

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

/* Inbox & Feed */
.filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 12px;
}

.filter-chips {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.filter-chip {
  background: #111827;
  color: var(--text-secondary);
  border: 1px solid #1f2937;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
}

.filter-chip:hover {
  color: #fff;
  border-color: #374151;
}

.filter-chip.active {
  background: #0284c7;
  color: #fff;
  border-color: #0284c7;
}

.email-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.email-card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.email-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-glow);
  transform: translateX(3px);
}

.email-main {
  flex: 1;
  min-width: 0;
}

.email-header-line {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 4px;
}

.email-sender {
  font-weight: 600;
  font-size: 14px;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.email-subject {
  font-size: 13px;
  font-weight: 500;
  color: #cbd5e1;
  margin-bottom: 6px;
}

.email-snippet {
  font-size: 12px;
  color: var(--text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.email-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
  flex-shrink: 0;
}

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

/* Badges & Pills */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.badge-accounts { background: #0369a1; color: #bae6fd; }
.badge-sales { background: #047857; color: #a7f3d0; }
.badge-support { background: #7c2d12; color: #fed7aa; }
.badge-general { background: #334155; color: #e2e8f0; }

.badge-invoice { background: rgba(16, 185, 129, 0.15); color: #34d399; border: 1px solid rgba(16, 185, 129, 0.3); }
.badge-urgent { background: rgba(244, 63, 94, 0.15); color: #fb7185; border: 1px solid rgba(244, 63, 94, 0.3); }
.badge-lead { background: rgba(245, 158, 11, 0.15); color: #fbbf24; border: 1px solid rgba(245, 158, 11, 0.3); }
.badge-complaint { background: rgba(239, 68, 68, 0.15); color: #f87171; border: 1px solid rgba(239, 68, 68, 0.3); }

.amount-pill {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.2), rgba(5, 150, 105, 0.1));
  border: 1px solid rgba(16, 185, 129, 0.4);
  color: #34d399;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 12px;
  padding: 3px 8px;
  border-radius: var(--radius-full);
}

/* Copilot Chat UI */
.copilot-container {
  display: flex;
  flex-direction: column;
  height: 620px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.copilot-header {
  padding: 16px 20px;
  background: rgba(15, 23, 42, 0.9);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.copilot-chat-history {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.chat-bubble {
  max-width: 80%;
  padding: 14px 18px;
  border-radius: var(--radius-lg);
  font-size: 13px;
  line-height: 1.6;
}

.chat-bubble.user {
  align-self: flex-end;
  background: linear-gradient(135deg, #0284c7, #0369a1);
  color: #fff;
  border-bottom-right-radius: 4px;
}

.chat-bubble.assistant {
  align-self: flex-start;
  background: #0b1120;
  border: 1px solid #1e293b;
  color: #e2e8f0;
  border-bottom-left-radius: 4px;
  white-space: pre-wrap;
}

.chat-prompt-chips {
  padding: 10px 20px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  border-top: 1px solid var(--border-subtle);
  background: rgba(11, 17, 32, 0.6);
}

.prompt-chip {
  background: rgba(2, 132, 199, 0.12);
  color: #38bdf8;
  border: 1px solid rgba(56, 189, 248, 0.25);
  padding: 5px 12px;
  border-radius: var(--radius-full);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.prompt-chip:hover {
  background: rgba(2, 132, 199, 0.25);
  border-color: #38bdf8;
}

.copilot-input-bar {
  padding: 14px 20px;
  display: flex;
  gap: 10px;
  border-top: 1px solid var(--border-subtle);
  background: rgba(15, 23, 42, 0.9);
}

.copilot-input {
  flex: 1;
  background: #070a13;
  border: 1px solid #334155;
  color: #fff;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 13px;
  outline: none;
}

.copilot-input:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 2px var(--accent-cyan-glow);
}

/* Modals & Drawers */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(6px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 999;
}

.modal-card {
  background: #0f172a;
  border: 1px solid #334155;
  border-radius: var(--radius-lg);
  padding: 28px;
  max-width: 580px;
  width: 90%;
  box-shadow: var(--shadow-lg);
}

.drawer-overlay {
  position: fixed;
  top: 0;
  right: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  display: none;
  justify-content: flex-end;
  z-index: 999;
}

.drawer-content {
  width: 540px;
  max-width: 95vw;
  height: 100vh;
  background: #0b1120;
  border-left: 1px solid var(--border-subtle);
  padding: 24px;
  overflow-y: auto;
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.7);
}

/* Tables */
table.data-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
  font-size: 13px;
}

table.data-table th {
  text-align: left;
  padding: 10px 12px;
  color: var(--text-secondary);
  font-weight: 600;
  border-bottom: 1px solid var(--border-subtle);
}

table.data-table td {
  padding: 12px;
  border-bottom: 1px solid rgba(51, 65, 85, 0.25);
  color: var(--text-primary);
}

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

/* Utilities */
.code-box {
  background: #070a13;
  border: 1px solid #1e293b;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-family: monospace;
  font-size: 12px;
  color: #38bdf8;
  word-break: break-all;
}

.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-muted);
  font-size: 13px;
}