/* ═══════════════════════════════════════════════════
   TrackFlow Dashboard — Design System
   Dark mode, glassmorphism, vibrant accents
   ═══════════════════════════════════════════════════ */

:root {
  /* Base palette */
  --bg-primary: #0a0b14;
  --bg-secondary: #111225;
  --bg-tertiary: #1a1b3a;
  --bg-card: rgba(26, 27, 58, 0.6);
  --bg-card-hover: rgba(36, 37, 78, 0.8);
  --bg-glass: rgba(255, 255, 255, 0.03);
  --border-color: rgba(255, 255, 255, 0.06);
  --border-active: rgba(99, 102, 241, 0.4);

  /* Text */
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #0f172a;

  /* Brand */
  --accent: #6366f1;
  --accent-hover: #818cf8;
  --accent-glow: rgba(99, 102, 241, 0.25);
  --accent-subtle: rgba(99, 102, 241, 0.1);

  /* Status colors */
  --success: #22c55e;
  --success-bg: rgba(34, 197, 94, 0.1);
  --warning: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.1);
  --danger: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.1);
  --info: #3b82f6;
  --info-bg: rgba(59, 130, 246, 0.1);

  /* Sizing */
  --sidebar-width: 260px;
  --sidebar-collapsed: 72px;
  --topbar-height: 64px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px var(--accent-glow);
}

/* ─── Reset & Base ───────────────────────────────── */

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

html, body {
  height: 100%;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

/* ─── Scrollbar ──────────────────────────────────── */

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.1); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255, 255, 255, 0.2); }

/* ─── Login Screen ───────────────────────────────── */

.login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--bg-primary);
  background-image:
    radial-gradient(ellipse at 20% 50%, rgba(99, 102, 241, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(139, 92, 246, 0.06) 0%, transparent 50%);
}

.login-card {
  width: 100%;
  max-width: 400px;
  padding: 40px;
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  animation: fadeInUp 0.5s ease;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.login-logo {
  text-align: center;
  margin-bottom: 32px;
}

.login-logo .logo-icon {
  display: inline-flex;
  margin-bottom: 16px;
}

.login-logo h1 {
  font-size: 28px;
  font-weight: 800;
  background: linear-gradient(135deg, #6366f1, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.login-logo p {
  color: var(--text-secondary);
  font-size: 14px;
  margin-top: 4px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-group input {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 14px;
  font-family: inherit;
  transition: all 0.2s;
}

.form-group input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.login-error {
  color: var(--danger);
  font-size: 13px;
  text-align: center;
  margin-top: 12px;
  min-height: 20px;
}

/* ─── Buttons ────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #6366f1, #7c3aed);
  color: white;
  box-shadow: 0 2px 10px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
}

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

.btn-secondary:hover { background: var(--bg-card-hover); }

.btn-danger {
  background: var(--danger);
  color: white;
}

.btn-sm { padding: 6px 14px; font-size: 12px; }
.btn-block { width: 100%; }

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}

.btn-icon:hover { background: var(--bg-glass); color: var(--text-primary); }

.btn-loader {
  width: 16px; height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ─── App Layout ─────────────────────────────────── */

.app-container {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* ─── Sidebar ────────────────────────────────────── */

.sidebar {
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  transition: width 0.3s;
  z-index: 100;
}

.sidebar-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--border-color);
}

.logo-icon-sm { flex-shrink: 0; }

.sidebar-title {
  font-size: 18px;
  font-weight: 800;
  background: linear-gradient(135deg, #6366f1, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.sidebar-nav {
  flex: 1;
  padding: 12px 8px;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s;
  margin-bottom: 2px;
}

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

.nav-item.active {
  background: var(--accent-subtle);
  color: var(--accent-hover);
}

.nav-item.active svg { stroke: var(--accent-hover); }

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

.user-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, #6366f1, #7c3aed);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: white;
}

.user-details { display: flex; flex-direction: column; }
.user-name { font-size: 13px; font-weight: 600; color: var(--text-primary); line-height: 1.2; }
.user-role { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }

/* ─── Main Content ───────────────────────────────── */

.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.top-bar {
  height: var(--topbar-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-secondary);
  flex-shrink: 0;
}

.top-bar-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-title {
  font-size: 18px;
  font-weight: 700;
}

.top-bar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.connection-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-muted);
}

.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
}

.status-dot.online { background: var(--success); box-shadow: 0 0 6px var(--success); }
.status-dot.offline { background: var(--text-muted); }

.refresh-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-muted);
}

.spinner-sm {
  width: 14px; height: 14px;
  border: 2px solid var(--border-color);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.content-area {
  flex: 1;
  overflow-y: auto;
  padding: 28px;
}

.mobile-menu-btn { display: none; }

/* ─── Cards & Panels ────────────────────────────── */

.card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: all 0.2s;
}

.card:hover {
  border-color: var(--border-active);
}

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

.card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

.card-subtitle {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ─── Stats Grid ─────────────────────────────────── */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  border-radius: 3px 3px 0 0;
}

.stat-card.accent::before { background: linear-gradient(90deg, #6366f1, #a78bfa); }
.stat-card.success::before { background: linear-gradient(90deg, #22c55e, #4ade80); }
.stat-card.warning::before { background: linear-gradient(90deg, #f59e0b, #fbbf24); }
.stat-card.danger::before { background: linear-gradient(90deg, #ef4444, #f87171); }
.stat-card.info::before { background: linear-gradient(90deg, #3b82f6, #60a5fa); }

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.stat-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.stat-value {
  font-size: 32px;
  font-weight: 800;
  line-height: 1;
}

.stat-card.accent .stat-value { color: #818cf8; }
.stat-card.success .stat-value { color: #4ade80; }
.stat-card.warning .stat-value { color: #fbbf24; }
.stat-card.danger .stat-value { color: #f87171; }
.stat-card.info .stat-value { color: #60a5fa; }

.stat-detail {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 6px;
}

/* ─── Tables ─────────────────────────────────────── */

.table-container {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

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

thead {
  background: var(--bg-tertiary);
}

th {
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

td {
  padding: 12px 16px;
  border-top: 1px solid var(--border-color);
  color: var(--text-primary);
}

tbody tr {
  transition: background 0.15s;
}

tbody tr:hover {
  background: var(--bg-glass);
}

/* ─── Status Badges ──────────────────────────────── */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.badge-new { background: var(--info-bg); color: var(--info); }
.badge-batched { background: rgba(139, 92, 246, 0.1); color: #a78bfa; }
.badge-dispatched { background: var(--warning-bg); color: var(--warning); }
.badge-accepted { background: rgba(99, 102, 241, 0.1); color: #818cf8; }
.badge-picked_up { background: rgba(14, 165, 233, 0.1); color: #38bdf8; }
.badge-delivered { background: var(--success-bg); color: var(--success); }
.badge-failed { background: var(--danger-bg); color: var(--danger); }
.badge-canceled { background: rgba(100, 116, 139, 0.1); color: var(--text-muted); }

.badge-online_available { background: var(--success-bg); color: var(--success); }
.badge-online_busy { background: var(--warning-bg); color: var(--warning); }
.badge-offline { background: rgba(100, 116, 139, 0.1); color: var(--text-muted); }

.badge-pending { background: var(--warning-bg); color: var(--warning); }
.badge-notified { background: var(--info-bg); color: var(--info); }
.badge-not_reached { background: var(--danger-bg); color: var(--danger); }
.badge-ignored { background: rgba(249, 115, 22, 0.1); color: #fb923c; }
.badge-declined { background: var(--danger-bg); color: var(--danger); }
.badge-ready { background: var(--info-bg); color: var(--info); }
.badge-collecting { background: rgba(139, 92, 246, 0.1); color: #a78bfa; }
.badge-completed { background: var(--success-bg); color: var(--success); }
.badge-in_progress { background: var(--warning-bg); color: var(--warning); }

/* ─── Filters Bar ────────────────────────────────── */

.filters-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
  align-items: center;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.filter-group label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
}

select, .filter-input {
  padding: 8px 12px;
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 13px;
  font-family: inherit;
}

select:focus, .filter-input:focus {
  outline: none;
  border-color: var(--accent);
}

/* ─── Config Form ────────────────────────────────── */

.config-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}

.config-item {
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
}

.config-item label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.config-item .config-desc {
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.config-item input[type="number"] {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 16px;
  font-weight: 600;
  font-family: inherit;
}

.config-item input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

/* ─── Map ────────────────────────────────────────── */

.map-wrapper {
  height: calc(100vh - var(--topbar-height) - 80px);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.map-wrapper .leaflet-container { height: 100%; }

/* Dark Leaflet tiles */
.leaflet-tile-pane { filter: brightness(0.7) contrast(1.1) saturate(0.8); }

/* ─── Empty State ────────────────────────────────── */

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.empty-state svg {
  width: 48px; height: 48px;
  stroke: var(--text-muted);
  margin-bottom: 16px;
  opacity: 0.5;
}

.empty-state h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.empty-state p {
  font-size: 13px;
}

/* ─── Section Headers ────────────────────────────── */

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

.section-title {
  font-size: 16px;
  font-weight: 700;
}

/* ─── Grid Layouts ───────────────────────────────── */

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.three-col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

/* ─── Toast Notifications ────────────────────────── */

.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 14px 20px;
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  font-size: 13px;
  color: var(--text-primary);
  animation: slideInRight 0.3s ease;
  max-width: 360px;
}

.toast.success { border-left: 3px solid var(--success); }
.toast.error { border-left: 3px solid var(--danger); }
.toast.info { border-left: 3px solid var(--info); }

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ─── Responsive ─────────────────────────────────── */

@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    left: -var(--sidebar-width);
    transition: left 0.3s;
  }
  .sidebar.open { left: 0; box-shadow: var(--shadow-lg); }
  .mobile-menu-btn { display: flex; }
  .content-area { padding: 16px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .two-col, .three-col { grid-template-columns: 1fr; }
}

/* ─── Loading skeleton ───────────────────────────── */
.skeleton {
  background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--bg-card-hover) 50%, var(--bg-tertiary) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ─── Modal ──────────────────────────────────────── */

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 9000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(6px);
  opacity: 0;
  transition: opacity 0.2s ease;
}

.modal-overlay.visible { opacity: 1; }

.modal-card {
  width: 100%;
  max-width: 640px;
  max-height: 90vh;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  animation: fadeInUp 0.3s ease;
  overflow: hidden;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
  font-size: 18px;
  font-weight: 700;
}

.modal-body {
  padding: 24px;
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
}

.form-row {
  display: flex;
  gap: 12px;
  margin-bottom: 0;
}

.form-row .form-group { flex: 1; }

.modal-body .form-group {
  margin-bottom: 14px;
}

.modal-body .form-group label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 5px;
}

.modal-body .form-group input,
.modal-body .form-group select,
.modal-body .form-group textarea {
  width: 100%;
  padding: 9px 12px;
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 13px;
  font-family: inherit;
}

.modal-body .form-group input:focus,
.modal-body .form-group select:focus,
.modal-body .form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-section-label {
  font-size: 12px;
  font-weight: 700;
  color: var(--accent-hover);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin: 16px 0 8px 0;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border-color);
}

@media (max-width: 768px) {
  .modal-card { max-width: 95%; margin: 0 8px; }
  .form-row { flex-direction: column; gap: 0; }
}