:root {
  --byd-green: #00B04F;
  --byd-dark-green: #009942;
  --byd-light-green: #e8f5e8;
  --dark-bg: #1a1d29;
  --dark-card: #242940;
  --text-dark: #2d3748;
  --text-muted: #6c757d;
  --border-color: #dee2e6;
}

* {
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: #f8f9fa;
  color: var(--text-dark);
  line-height: 1.6;
}

.admin-body {
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  min-height: 100vh;
}

.login-body {
  background: linear-gradient(135deg, var(--byd-green) 0%, var(--byd-dark-green) 100%);
  height: 100vh;
}

.main-content {
  padding-top: 76px;
}

/* Login Card */
.login-card {
  background: white;
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.login-card .form-control:focus {
  border-color: var(--byd-green);
  box-shadow: 0 0 0 0.2rem rgba(0, 176, 79, 0.25);
}

/* Navbar */
.navbar-brand {
  font-size: 1.5rem;
  font-weight: 700;
}

/* Cards */
.admin-card {
  background: white;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  transition: all 0.3s ease;
}

.admin-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
}

.admin-card .card-header {
  background: #f8f9fa;
  border-bottom: 1px solid var(--border-color);
  border-radius: 12px 12px 0 0 !important;
  padding: 1rem 1.25rem;
  font-weight: 600;
}

/* Stat Cards */
.stat-card {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 16px;
  padding: 1.5rem;
  color: white;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease;
}

.stat-card:hover {
  transform: translateY(-4px);
}

.stat-card.bg-primary {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.stat-card.bg-success {
  background: linear-gradient(135deg, var(--byd-green) 0%, var(--byd-dark-green) 100%);
}

.stat-card.bg-warning {
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.stat-card.bg-info {
  background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.stat-content {
  position: relative;
  z-index: 2;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.875rem;
  opacity: 0.9;
  font-weight: 500;
}

.stat-change {
  font-size: 0.75rem;
  margin-top: 0.25rem;
  font-weight: 600;
}

.stat-icon {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 2rem;
  opacity: 0.3;
  z-index: 1;
}

/* Conversation Items */
.conversation-item {
  display: flex;
  align-items: center;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  transition: background-color 0.2s ease;
}

.conversation-item:hover {
  background-color: #f8f9fa;
}

.conversation-item:last-child {
  border-bottom: none;
}

.conversation-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--byd-green), var(--byd-dark-green));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.25rem;
  margin-right: 1rem;
  flex-shrink: 0;
}

.conversation-avatar-sm {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--byd-green), var(--byd-dark-green));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1rem;
  flex-shrink: 0;
}

.conversation-info {
  flex: 1;
  min-width: 0;
}

.conversation-header {
  display: flex;
  justify-content: between;
  align-items: center;
  margin-bottom: 0.25rem;
}

.conversation-time {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-left: auto;
}

.conversation-preview {
  color: var(--text-muted);
  font-size: 0.875rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.conversation-actions {
  margin-left: 1rem;
  flex-shrink: 0;
}

/* Chat Interface */
.chat-container {
  height: 70vh;
  display: flex;
  flex-direction: column;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  background: #f8f9fa;
  max-height: 500px;
}

.message {
  display: flex;
  margin-bottom: 1rem;
}

.message-sent {
  justify-content: flex-end;
}

.message-received {
  justify-content: flex-start;
}

.message-content {
  max-width: 70%;
  padding: 0.75rem 1rem;
  border-radius: 16px;
  position: relative;
}

.message-sent .message-content {
  background: var(--byd-green);
  color: white;
  border-bottom-right-radius: 4px;
}

.message-received .message-content {
  background: white;
  color: var(--text-dark);
  border-bottom-left-radius: 4px;
  border: 1px solid var(--border-color);
}

.message-text {
  margin-bottom: 0.25rem;
  word-wrap: break-word;
}

.message-time {
  font-size: 0.75rem;
  opacity: 0.7;
  text-align: right;
}

/* Metrics */
.metric-item {
  display: flex;
  justify-content: between;
  align-items: center;
  padding: 0.75rem 0;
  border-bottom: 1px solid #f0f0f0;
}

.metric-item:last-child {
  border-bottom: none;
}

.metric-label {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.metric-value {
  font-weight: 600;
  font-size: 1.125rem;
  margin-left: auto;
}

.vehicle-metric {
  margin-bottom: 1rem;
}

.vehicle-metric:last-child {
  margin-bottom: 0;
}

/* Buttons */
.btn {
  border-radius: 8px;
  font-weight: 500;
  transition: all 0.2s ease;
}

.btn-success {
  background-color: var(--byd-green);
  border-color: var(--byd-green);
}

.btn-success:hover {
  background-color: var(--byd-dark-green);
  border-color: var(--byd-dark-green);
  transform: translateY(-1px);
}

.btn-outline-success {
  color: var(--byd-green);
  border-color: var(--byd-green);
}

.btn-outline-success:hover {
  background-color: var(--byd-green);
  border-color: var(--byd-green);
}

/* Forms */
.form-control:focus {
  border-color: var(--byd-green);
  box-shadow: 0 0 0 0.2rem rgba(0, 176, 79, 0.25);
}

.form-select:focus {
  border-color: var(--byd-green);
  box-shadow: 0 0 0 0.2rem rgba(0, 176, 79, 0.25);
}

/* Alerts */
.alert {
  border-radius: 8px;
  border: none;
}

/* Tables */
.table {
  border-radius: 8px;
  overflow: hidden;
}

.table-hover tbody tr:hover {
  background-color: rgba(0, 176, 79, 0.05);
}

/* Progress bars */
.progress {
  background-color: rgba(0, 0, 0, 0.1);
  border-radius: 4px;
}

/* Badges */
.badge {
  font-weight: 500;
}

/* Responsive */
@media (max-width: 768px) {
  .main-content {
    padding-top: 66px;
  }
  
  .stat-number {
    font-size: 2rem;
  }
  
  .conversation-item {
    padding: 0.75rem 1rem;
  }
  
  .conversation-avatar {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }
  
  .message-content {
    max-width: 85%;
  }
  
  .chat-container {
    height: 60vh;
  }
}

/* Loading states */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

/* Animation utilities */
.fade-in {
  animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Scrollbar styling */
.chat-messages::-webkit-scrollbar {
  width: 6px;
}

.chat-messages::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 6px;
}

.chat-messages::-webkit-scrollbar-thumb {
  background: var(--byd-green);
  border-radius: 6px;
}

.chat-messages::-webkit-scrollbar-thumb:hover {
  background: var(--byd-dark-green);
}