:root {
  --bg-main: #0b1120;
  --bg-sidebar: #0f172a;
  --bg-card: #1e293b;
  --bg-card-hover: #26334d;
  --border-color: #334155;
  --primary: #10b981;
  --primary-hover: #059669;
  --primary-light: rgba(16, 185, 129, 0.15);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --danger: #ef4444;
  --warning: #f59e0b;
  --radius: 8px;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: var(--font-family);
  font-size: 14px;
  line-height: 1.5;
  height: 100vh;
  overflow: hidden;
}

.app-layout {
  display: flex;
  height: 100vh;
  width: 100vw;
}

/* SIDEBAR */
.sidebar {
  width: 260px;
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

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

.logo-icon {
  font-size: 24px;
  background: var(--primary-light);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  color: var(--primary);
}

.brand-text h1 {
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
}

.badge-vps {
  font-size: 10px;
  font-weight: 700;
  background: var(--primary);
  color: #000;
  padding: 2px 6px;
  border-radius: 4px;
  letter-spacing: 0.5px;
}

.nav-menu {
  flex: 1;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  background: none;
  border: none;
  border-radius: var(--radius);
  color: var(--text-muted);
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  transition: all 0.2s ease;
}

.nav-item:hover {
  background: var(--border-color);
  color: #fff;
}

.nav-item.active {
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
}

.nav-item .icon {
  font-size: 16px;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border-color);
}

.connection-status-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}

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

.connection-status-pill.connected {
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
}
.connection-status-pill.connected .dot {
  background: #10b981;
}

.connection-status-pill.connecting {
  background: rgba(245, 158, 11, 0.2);
  color: #fbbf24;
}
.connection-status-pill.connecting .dot {
  background: #f59e0b;
}

.connection-status-pill.disconnected {
  background: rgba(239, 68, 68, 0.2);
  color: #f87171;
}
.connection-status-pill.disconnected .dot {
  background: #ef4444;
}

/* MAIN CONTENT */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

.topbar {
  height: 60px;
  background: var(--bg-sidebar);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
}

.account-selector-wrapper {
  display: flex;
  align-items: center;
  gap: 10px;
}

.account-selector-wrapper label {
  font-weight: 500;
  color: var(--text-muted);
}

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

.api-token-badge {
  background: var(--border-color);
  padding: 6px 12px;
  border-radius: var(--radius);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s;
}

.api-token-badge:hover {
  background: #475569;
}

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

.tab-pane {
  display: none;
}
.tab-pane.active {
  display: block;
}

/* CARDS */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 20px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
}

.card h2 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 6px;
  color: #fff;
}

.card h3 {
  font-size: 15px;
  font-weight: 600;
  margin: 16px 0 8px;
  color: #e2e8f0;
}

.subtitle {
  color: var(--text-muted);
  font-size: 13px;
  margin-bottom: 18px;
}

/* QR CONTAINER */
.card-qr {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.qr-container {
  width: 256px;
  height: 256px;
  background: #fff;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
  margin: 20px 0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.qr-container img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.qr-placeholder {
  color: #475569;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  font-size: 13px;
}

.qr-actions {
  display: flex;
  gap: 10px;
  margin-top: 10px;
}

/* FORMS & BUTTONS */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.form-group label {
  font-size: 12.5px;
  font-weight: 500;
  color: var(--text-muted);
}

.form-input, .form-select {
  background: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  color: var(--text-main);
  padding: 9px 12px;
  font-size: 13.5px;
  outline: none;
  font-family: inherit;
  transition: border-color 0.2s;
}

.form-input:focus, .form-select:focus {
  border-color: var(--primary);
}

.form-inline {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
}

.btn {
  padding: 9px 16px;
  border-radius: var(--radius);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-primary {
  background: var(--primary);
  color: #0b1120;
}
.btn-primary:hover {
  background: var(--primary-hover);
}

.btn-secondary {
  background: #3b82f6;
  color: #fff;
}
.btn-secondary:hover {
  background: #2563eb;
}

.btn-danger {
  background: var(--danger);
  color: #fff;
}
.btn-danger:hover {
  background: #dc2626;
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-main);
}
.btn-outline:hover {
  background: var(--border-color);
}

.btn-sm {
  padding: 6px 10px;
  font-size: 12px;
}

.divider {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: 24px 0;
}

.pairing-code-display {
  background: var(--bg-main);
  padding: 16px;
  border-radius: var(--radius);
  text-align: center;
  margin-top: 16px;
  border: 1px dashed var(--primary);
}

.pairing-code-display strong {
  display: block;
  font-size: 26px;
  letter-spacing: 4px;
  color: var(--primary);
  margin: 8px 0;
}

/* INBOX LAYOUT */
.inbox-layout {
  display: flex;
  height: calc(100vh - 120px);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
}

.chat-list-sidebar {
  width: 320px;
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
}

.chat-search {
  padding: 12px;
  border-bottom: 1px solid var(--border-color);
}

.chat-conversations {
  flex: 1;
  overflow-y: auto;
}

.chat-conv-item {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  transition: background 0.2s;
}

.chat-conv-item:hover {
  background: var(--bg-card-hover);
}

.chat-conv-item.active {
  background: var(--primary-light);
  border-left: 3px solid var(--primary);
}

.chat-conv-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 4px;
}

.chat-conv-name {
  font-weight: 600;
  color: #fff;
  font-size: 13.5px;
}

.chat-conv-time {
  font-size: 11px;
  color: var(--text-muted);
}

.chat-conv-last-msg {
  font-size: 12.5px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chat-window {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.chat-header {
  height: 60px;
  padding: 0 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  background: var(--bg-sidebar);
}

.chat-messages {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--bg-main);
}

.chat-bubble {
  max-width: 65%;
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 13.5px;
  line-height: 1.4;
  position: relative;
}

.chat-bubble.from-me {
  align-self: flex-end;
  background: #065f46;
  color: #ecfdf5;
  border-bottom-right-radius: 2px;
}

.chat-bubble.from-them {
  align-self: flex-start;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: #f1f5f9;
  border-bottom-left-radius: 2px;
}

.chat-bubble-time {
  font-size: 10px;
  opacity: 0.7;
  text-align: right;
  margin-top: 4px;
}

.chat-input-area {
  padding: 14px 20px;
  border-top: 1px solid var(--border-color);
  background: var(--bg-sidebar);
  display: flex;
  gap: 12px;
}

.chat-input {
  flex: 1;
  height: 48px;
  resize: none;
}

/* TABLES */
.table-responsive {
  overflow-x: auto;
}

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

.data-table th, .data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-color);
}

.data-table th {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
}

.code-block {
  background: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 16px;
  margin: 16px 0;
  overflow-x: auto;
}

.code-header {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 8px;
  font-weight: 600;
}

.code-block pre {
  font-family: monospace;
  font-size: 13px;
  color: #38bdf8;
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid rgba(16, 185, 129, 0.2);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

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