:root {
  /* Primary - Purple */
  --color-primary-500: #a855f7;
  --color-primary-600: #9333ea;
  --color-primary-700: #7e22ce;
  
  /* Neutral */
  --color-neutral-50: #fafafa;
  --color-neutral-100: #f5f5f5;
  --color-neutral-200: #e5e5e5;
  --color-neutral-400: #a3a3a3;
  --color-neutral-500: #737373;
  --color-neutral-600: #525252;
  --color-neutral-700: #404040;
  --color-neutral-900: #171717;
  
  /* Dark theme */
  --color-dark-bg: #000000;
  --color-dark-surface: #141414;
  --color-dark-elevated: #282828;
  --color-dark-border: #282828;
  --color-dark-text: #ffffff;
  --color-dark-text-muted: #a1a1a1;
  
  /* Blue */
  --color-blue-600: #2563eb;
  --color-blue-700: #1d4ed8;
  --color-blue-100: #dbeafe;
  --color-blue-900: #1e3a8a;
  
  /* Green */
  --color-green-600: #16a34a;
  --color-green-700: #15803d;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--color-neutral-50);
  min-height: 100vh;
  padding: 0;
}

body.dark {
  background: var(--color-dark-bg);
  color: var(--color-dark-text);
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px;
}

/* Header */
.header {
  background: white;
  border: 1px solid var(--color-neutral-200);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

body.dark .header {
  background: var(--color-dark-surface);
  border-color: var(--color-dark-border);
}

.header-left h1 {
  font-size: 24px;
  font-weight: bold;
  color: var(--color-neutral-900);
  margin-bottom: 4px;
}

body.dark .header-left h1 {
  color: var(--color-dark-text);
}

.subtitle {
  color: var(--color-neutral-500);
  font-size: 14px;
}

body.dark .subtitle {
  color: var(--color-neutral-400);
}

.header-right {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-neutral-700);
  color: white;
}

.btn-primary:hover {
  background: var(--color-neutral-900);
}

body.dark .btn-primary {
  background: var(--color-neutral-600);
}

body.dark .btn-primary:hover {
  background: var(--color-neutral-500);
}

.btn-secondary {
  background: var(--color-primary-600);
  color: white;
}

.btn-secondary:hover {
  background: var(--color-primary-700);
}

.btn-success {
  background: var(--color-neutral-700);
  color: white;
}

.btn-success:hover {
  background: var(--color-neutral-900);
}

body.dark .btn-success {
  background: var(--color-neutral-600);
}

body.dark .btn-success:hover {
  background: var(--color-neutral-500);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Stats */
.stats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.stat-card {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--color-neutral-100);
  border: 1px solid var(--color-neutral-200);
  border-radius: 6px;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-neutral-700);
}

body.dark .stat-card {
  background: var(--color-dark-elevated);
  border-color: var(--color-dark-border);
  color: var(--color-neutral-400);
}

.stat-card svg {
  width: 14px;
  height: 14px;
}

.stat-label {
  display: none;
}

.stat-value {
  font-weight: 500;
}

/* Inbox Section */
.inbox-section {
  background: white;
  border: 1px solid var(--color-neutral-200);
  border-radius: 8px;
  padding: 20px;
}

body.dark .inbox-section {
  background: var(--color-dark-surface);
  border-color: var(--color-dark-border);
}

.inbox-section h2 {
  color: var(--color-neutral-900);
  margin-bottom: 16px;
  font-size: 18px;
  font-weight: 600;
}

body.dark .inbox-section h2 {
  color: var(--color-dark-text);
}

.inbox-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.loading {
  text-align: center;
  padding: 40px;
  color: #6b7280;
  font-size: 16px;
}

.empty {
  text-align: center;
  padding: 40px;
  color: #6b7280;
  font-size: 16px;
}

/* Contact Card */
.contact-card {
  background: var(--color-neutral-50);
  border: 1px solid var(--color-neutral-200);
  border-radius: 8px;
  padding: 12px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  transition: all 0.2s ease;
  cursor: pointer;
}

body.dark .contact-card {
  background: var(--color-dark-elevated);
  border-color: var(--color-dark-border);
}

.contact-card:hover {
  background: var(--color-neutral-100);
  border-color: var(--color-primary-500);
}

body.dark .contact-card:hover {
  background: var(--color-dark-elevated);
  border-color: var(--color-primary-500);
}

.contact-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-primary-600);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 16px;
  font-weight: 600;
  flex-shrink: 0;
}

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

.contact-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
  gap: 8px;
}

.contact-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-neutral-900);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

body.dark .contact-name {
  color: var(--color-dark-text);
}

.contact-time {
  font-size: 11px;
  color: var(--color-neutral-400);
  white-space: nowrap;
  flex-shrink: 0;
}

body.dark .contact-time {
  color: var(--color-dark-text-muted);
}

.contact-phone {
  font-size: 12px;
  color: var(--color-neutral-500);
  margin-bottom: 2px;
}

body.dark .contact-phone {
  color: var(--color-neutral-400);
}

.contact-message {
  font-size: 13px;
  color: var(--color-neutral-600);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.4;
}

body.dark .contact-message {
  color: var(--color-neutral-400);
}

.contact-instance {
  font-size: 11px;
  color: var(--color-neutral-400);
  margin-top: 4px;
}

body.dark .contact-instance {
  color: var(--color-dark-text-muted);
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
}

.modal-content {
  background-color: white;
  border: 1px solid var(--color-neutral-200);
  margin: 10% auto;
  padding: 24px;
  border-radius: 8px;
  width: 90%;
  max-width: 500px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
  animation: slideDown 0.3s ease;
}

body.dark .modal-content {
  background-color: var(--color-dark-surface);
  border-color: var(--color-dark-border);
}

@keyframes slideDown {
  from {
    transform: translateY(-50px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.close {
  color: var(--color-neutral-400);
  float: right;
  font-size: 24px;
  font-weight: bold;
  cursor: pointer;
  transition: color 0.2s ease;
  line-height: 1;
}

.close:hover {
  color: var(--color-neutral-900);
}

body.dark .close:hover {
  color: var(--color-dark-text);
}

.modal-content h2 {
  color: var(--color-neutral-900);
  margin-bottom: 12px;
  font-size: 20px;
  font-weight: 600;
}

body.dark .modal-content h2 {
  color: var(--color-dark-text);
}

.modal-content p {
  color: var(--color-neutral-600);
  margin-bottom: 16px;
  line-height: 1.5;
  font-size: 14px;
}

body.dark .modal-content p {
  color: var(--color-neutral-400);
}

.input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--color-neutral-300);
  border-radius: 8px;
  font-size: 14px;
  margin-bottom: 16px;
  transition: border-color 0.2s ease;
  background: white;
  color: var(--color-neutral-900);
}

body.dark .input {
  background: var(--color-dark-elevated);
  border-color: var(--color-dark-border);
  color: var(--color-dark-text);
}

.input:focus {
  outline: none;
  border-color: var(--color-primary-500);
}

.input::placeholder {
  color: var(--color-neutral-400);
}

body.dark .input::placeholder {
  color: var(--color-dark-text-muted);
}

.setup-result {
  margin-top: 16px;
  padding: 12px;
  border-radius: 8px;
  font-size: 14px;
  display: none;
}

.setup-result.success {
  background: #d1fae5;
  color: #065f46;
  border: 1px solid #6ee7b7;
  display: block;
}

.setup-result.error {
  background: #fee2e2;
  color: #991b1b;
  border: 1px solid #fca5a5;
  display: block;
}

/* Responsive */
@media (max-width: 768px) {
  .header {
    flex-direction: column;
    align-items: stretch;
  }

  .header-right {
    flex-direction: column;
  }

  .stats {
    grid-template-columns: 1fr;
  }

  .contact-card {
    flex-direction: column;
    align-items: flex-start;
  }

  .contact-header {
    width: 100%;
  }
}

/* Animations */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Connection Status Badge */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
  margin-right: 8px;
  transition: all 0.3s ease;
}

.status-badge.connected {
  background: rgba(34, 197, 94, 0.1);
  color: #16a34a;
  border: 1px solid rgba(34, 197, 94, 0.3);
}

body.dark .status-badge.connected {
  background: rgba(34, 197, 94, 0.2);
  color: #22c55e;
}

.status-badge.disconnected {
  background: rgba(239, 68, 68, 0.1);
  color: #dc2626;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

body.dark .status-badge.disconnected {
  background: rgba(239, 68, 68, 0.2);
  color: #ef4444;
}

.status-badge.error {
  background: rgba(249, 115, 22, 0.1);
  color: #ea580c;
  border: 1px solid rgba(249, 115, 22, 0.3);
}

body.dark .status-badge.error {
  background: rgba(249, 115, 22, 0.2);
  color: #fb923c;
}

/* Search Bar */
.search-bar {
  background: white;
  border: 1px solid var(--color-neutral-200);
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 16px;
  display: flex;
  gap: 8px;
  align-items: center;
}

body.dark .search-bar {
  background: var(--color-dark-surface);
  border-color: var(--color-dark-border);
}

.search-input {
  flex: 1;
  margin-bottom: 0 !important;
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--color-neutral-200);
}

body.dark .pagination {
  border-top-color: var(--color-dark-border);
}

.page-info {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-neutral-600);
}

body.dark .page-info {
  color: var(--color-neutral-400);
}

/* Danger Button */
.btn-danger {
  background: #dc2626;
  color: white;
}

.btn-danger:hover {
  background: #b91c1c;
}

/* Filtered Count Badge */
#filtered-count {
  font-size: 14px;
  color: var(--color-primary-600);
  font-weight: 500;
}

/* Chat Type Badges */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  margin-left: 8px;
  vertical-align: middle;
}

.badge-personal {
  background: rgba(34, 197, 94, 0.1);
  color: #16a34a;
  border: 1px solid rgba(34, 197, 94, 0.3);
}

body.dark .badge-personal {
  background: rgba(34, 197, 94, 0.2);
  color: #22c55e;
}

.badge-group {
  background: rgba(59, 130, 246, 0.1);
  color: #2563eb;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

body.dark .badge-group {
  background: rgba(59, 130, 246, 0.2);
  color: #3b82f6;
}

.badge-broadcast {
  background: rgba(249, 115, 22, 0.1);
  color: #ea580c;
  border: 1px solid rgba(249, 115, 22, 0.3);
}

body.dark .badge-broadcast {
  background: rgba(249, 115, 22, 0.2);
  color: #fb923c;
}