/* ==========================================================================
   AGASTYA BHARAT MOBILITY OS — ENTERPRISE ADMIN FRONTEND DESIGN SYSTEM
   ========================================================================== */

:root {
  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  
  /* Color Palette */
  --bg-dark: #0f172a;
  --bg-card: #1e293b;
  --bg-card-hover: #334155;
  --bg-sidebar: #090d16;
  --border-color: #334155;
  --border-light: #475569;
  
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --primary-glow: rgba(59, 130, 246, 0.25);
  
  --accent: #10b981;
  --accent-glow: rgba(16, 185, 129, 0.25);
  
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #06b6d4;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
}

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

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

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

/* Sidebar Navigation */
.sidebar {
  width: 260px;
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 100;
}

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

.sidebar-logo {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
  color: #fff;
  box-shadow: 0 0 12px var(--primary-glow);
}

.sidebar-title {
  font-weight: 700;
  font-size: 15px;
  letter-spacing: -0.3px;
  color: #fff;
}

.sidebar-subtitle {
  font-size: 11px;
  color: var(--accent);
  font-weight: 600;
  text-transform: uppercase;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-section-title {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-dim);
  font-weight: 700;
  padding: 12px 12px 6px 12px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.15s ease;
  cursor: pointer;
}

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

.nav-item.active {
  background-color: var(--primary);
  color: #fff;
  box-shadow: 0 0 12px var(--primary-glow);
}

.nav-icon {
  width: 18px;
  text-align: center;
  font-size: 16px;
}

.nav-badge {
  margin-left: auto;
  background-color: var(--danger);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 10px;
}

/* Sidebar Footer / User Info */
.sidebar-user {
  padding: 16px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: rgba(0, 0, 0, 0.2);
}

.user-info {
  display: flex;
  flex-direction: column;
}

.user-name {
  font-weight: 600;
  font-size: 13px;
}

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

.btn-logout {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  font-size: 16px;
  transition: color 0.15s ease;
}

.btn-logout:hover {
  color: var(--danger);
  background-color: rgba(239, 68, 68, 0.1);
}

/* Main Content Area */
.main-wrapper {
  margin-left: 260px;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.header {
  height: 64px;
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 90;
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.content {
  padding: 24px;
  flex: 1;
}

/* UI Cards */
.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
}

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

.card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
}

/* Metric / KPI Cards */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.kpi-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 18px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.kpi-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}

.kpi-icon.primary { background-color: rgba(59, 130, 246, 0.15); color: var(--primary); }
.kpi-icon.accent { background-color: rgba(16, 185, 129, 0.15); color: var(--accent); }
.kpi-icon.warning { background-color: rgba(245, 158, 11, 0.15); color: var(--warning); }
.kpi-icon.danger { background-color: rgba(239, 68, 68, 0.15); color: var(--danger); }

.kpi-info {
  display: flex;
  flex-direction: column;
}

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

.kpi-value {
  font-size: 24px;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.5px;
}

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

.table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.table th {
  background-color: rgba(0, 0, 0, 0.25);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
}

.table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-main);
  font-size: 13px;
}

.table tr:last-child td {
  border-bottom: none;
}

.table tr:hover td {
  background-color: var(--bg-card-hover);
}

/* Badges / Status Pills */
.badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-active, .badge-success, .badge-approved, .badge-completed, .badge-in_stock {
  background-color: rgba(16, 185, 129, 0.15);
  color: var(--accent);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-pending, .badge-processing, .badge-inspection, .badge-allocated {
  background-color: rgba(245, 158, 11, 0.15);
  color: var(--warning);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-danger, .badge-failed, .badge-rejected, .badge-written_off, .badge-inactive {
  background-color: rgba(239, 68, 68, 0.15);
  color: var(--danger);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge-info, .badge-open, .badge-general {
  background-color: rgba(6, 182, 212, 0.15);
  color: var(--info);
  border: 1px solid rgba(6, 182, 212, 0.3);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
  border: none;
  transition: all 0.15s ease;
}

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

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

.btn-danger {
  background-color: var(--danger);
  color: #fff;
}
.btn-danger:hover { opacity: 0.9; }

.btn-sm {
  padding: 4px 10px;
  font-size: 12px;
}

/* Form Controls */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-muted);
}

.form-control {
  width: 100%;
  padding: 10px 14px;
  background-color: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 14px;
  outline: none;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-glow);
}

/* Search Bar & Filters Header */
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.search-box {
  min-width: 260px;
  position: relative;
}

/* Login Page Styling */
.login-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  width: 100%;
  background: radial-gradient(circle at center, #1e293b 0%, #0f172a 100%);
}

.login-card {
  width: 400px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-lg);
}

.login-header {
  text-align: center;
  margin-bottom: 24px;
}

.login-logo {
  width: 54px;
  height: 54px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 26px;
  color: #fff;
  margin: 0 auto 12px auto;
  box-shadow: 0 0 20px var(--primary-glow);
}

/* Modals */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  width: 500px;
  max-width: 90vw;
  box-shadow: var(--shadow-lg);
  padding: 24px;
}

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

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

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 20px;
}

/* Loading & Empty States */
.state-box {
  padding: 40px;
  text-align: center;
  color: var(--text-muted);
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 12px auto;
}

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

/* Toasts */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  background-color: var(--bg-card);
  border-left: 4px solid var(--primary);
  color: var(--text-main);
  box-shadow: var(--shadow-md);
  font-weight: 500;
  font-size: 13px;
}
.toast-success { border-left-color: var(--accent); }
.toast-error { border-left-color: var(--danger); }