/* ===== Design Palette (matches Teams Portal / Admin Portal) ===== */
:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #818cf8;
  --accent: #8b5cf6;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;
  --cyan: #22d3ee;

  --bg-page: #f8f9fa;
  --bg-card: #ffffff;
  --bg-secondary: #f1f3f5;
  --bg-tertiary: #e9ecef;
  --border: #e9ecef;
  --text-primary: #212529;
  --text-secondary: #6c757d;
  --text-muted: #adb5bd;
  --shadow-card: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-card-hover: 0 4px 16px rgba(0,0,0,0.12);

  --gradient-header: linear-gradient(135deg, #6366f1, #8b5cf6);
  --gradient-card: linear-gradient(135deg, rgba(99,102,241,0.08), rgba(139,92,246,0.08));
}

.dark {
  --bg-page: #111827;
  --bg-card: #1f2937;
  --bg-secondary: #1a2332;
  --bg-tertiary: #374151;
  --border: #374151;
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --shadow-card: 0 2px 8px rgba(0,0,0,0.25);
  --shadow-card-hover: 0 4px 16px rgba(0,0,0,0.35);
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-page);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary-dark); }

/* ===== Utility ===== */
.hidden { display: none !important; }
.bg-page { background: var(--bg-page); }
.text-primary { color: var(--text-primary); }

/* ===== Login ===== */
.login-overlay {
  position: fixed; inset: 0; z-index: 1000;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-page);
}
.login-card {
  width: 100%; max-width: 400px; position: relative;
  background: var(--bg-card); border-radius: 16px;
  box-shadow: var(--shadow-card); overflow: hidden;
}
.login-header {
  background: var(--gradient-header);
  color: white; padding: 32px; text-align: center;
}
.login-header h1 { font-size: 1.5rem; font-weight: 700; margin-top: 8px; }
.login-header p { opacity: 0.85; font-size: 0.875rem; margin-top: 4px; }
.login-body { padding: 32px; }
.login-error {
  background: rgba(239,68,68,0.1); color: var(--danger);
  padding: 10px 14px; border-radius: 8px; font-size: 0.875rem;
  margin-bottom: 16px; border: 1px solid rgba(239,68,68,0.2);
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block; font-size: 0.8rem; font-weight: 600;
  color: var(--text-secondary); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.5px;
}
.form-group input {
  width: 100%; padding: 10px 14px; border: 1.5px solid var(--border);
  border-radius: 8px; background: var(--bg-secondary); color: var(--text-primary);
  font-size: 0.95rem; transition: border-color 0.2s;
}
.form-group input:focus { outline: none; border-color: var(--primary); }
.btn-primary {
  width: 100%; padding: 12px; border: none; border-radius: 8px;
  background: var(--gradient-header); color: white;
  font-size: 1rem; font-weight: 600; cursor: pointer;
  transition: opacity 0.2s;
}
.btn-primary:hover { opacity: 0.9; }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }
.dark-toggle-login {
  position: absolute; top: 12px; right: 12px;
  background: rgba(255,255,255,0.2); border: none; color: white;
  width: 32px; height: 32px; border-radius: 50%; cursor: pointer;
  font-size: 0.875rem;
}
.dark-toggle-login #loginSun { display: none; }
.dark .dark-toggle-login #loginMoon { display: none; }
.dark .dark-toggle-login #loginSun { display: inline; }

/* ===== App Shell ===== */
.app-shell { display: flex; flex-direction: column; min-height: 100vh; }

/* Header */
.app-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px; height: 56px;
  background: var(--gradient-header); color: white;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15); z-index: 100;
}
.header-left { display: flex; align-items: center; gap: 10px; }
.header-logo { font-size: 1.25rem; }
.header-title { font-size: 1.1rem; font-weight: 700; letter-spacing: -0.3px; }
.header-nav { display: flex; gap: 4px; }
.nav-link {
  color: rgba(255,255,255,0.75); text-decoration: none;
  padding: 8px 16px; border-radius: 8px; font-size: 0.875rem;
  font-weight: 500; transition: all 0.15s;
}
.nav-link:hover { color: white; background: rgba(255,255,255,0.12); }
.nav-link.active { color: white; background: rgba(255,255,255,0.2); }
.header-right { display: flex; align-items: center; gap: 12px; }

/* Broker indicator */
.broker-indicator {
  display: flex; align-items: center; gap: 6px;
  font-size: 0.75rem; opacity: 0.85;
}
.broker-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--success);
}
.broker-indicator.reconnecting .broker-dot { background: var(--warning); animation: pulse 1s infinite; }
.broker-indicator.disconnected .broker-dot { background: var(--danger); }

@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }

.dark-toggle {
  background: rgba(255,255,255,0.15); border: none; color: white;
  width: 32px; height: 32px; border-radius: 50%; cursor: pointer;
  font-size: 0.8rem; transition: background 0.2s;
}
.dark-toggle:hover { background: rgba(255,255,255,0.25); }
#sunIcon { display: none; }
.dark #moonIcon { display: none; }
.dark #sunIcon { display: inline; }
#loginSun { display: none; }
.dark #loginMoon { display: none; }
.dark #loginSun { display: inline; }

.user-badge { font-size: 0.8rem; opacity: 0.85; }
.btn-logout {
  background: rgba(255,255,255,0.1); border: none; color: white;
  width: 32px; height: 32px; border-radius: 50%; cursor: pointer;
  transition: background 0.2s;
}
.btn-logout:hover { background: rgba(255,255,255,0.2); }

/* Broker banner */
.broker-banner {
  background: rgba(245,158,11,0.12); color: var(--warning);
  padding: 8px 24px; font-size: 0.85rem; font-weight: 500;
  display: flex; align-items: center; gap: 8px;
  border-bottom: 1px solid rgba(245,158,11,0.2);
}

/* Main content */
.main-content { flex: 1; padding: 24px; overflow-y: auto; }

/* ===== Loading / Empty / Error States ===== */
.loading-state, .empty-state, .error-state {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 48px; color: var(--text-secondary); font-size: 0.95rem; gap: 12px;
}
.empty-state i, .error-state i { font-size: 2rem; opacity: 0.4; }
.error-state { color: var(--danger); }

/* ===== Cards ===== */
.card {
  background: var(--bg-card); border-radius: 12px;
  box-shadow: var(--shadow-card); border: 1px solid var(--border);
  overflow: hidden; transition: box-shadow 0.2s;
}
.card:hover { box-shadow: var(--shadow-card-hover); }
.card-header {
  padding: 16px 20px; font-weight: 600; font-size: 0.95rem;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.card-body { padding: 20px; }

/* Stat cards */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card {
  background: var(--gradient-card); border-radius: 12px;
  padding: 20px; border: 1px solid var(--border);
  position: relative; overflow: hidden;
}
.stat-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--gradient-header);
}
.stat-label { font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-secondary); }
.stat-value { font-size: 1.75rem; font-weight: 700; margin-top: 4px; color: var(--text-primary); }
.stat-sub { font-size: 0.75rem; color: var(--text-muted); margin-top: 2px; }

/* ===== Agent Grid ===== */
.agent-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.agent-card {
  background: var(--bg-card); border-radius: 12px; padding: 16px;
  border: 1px solid var(--border); cursor: pointer;
  transition: all 0.15s; box-shadow: var(--shadow-card);
}
.agent-card:hover { border-color: var(--primary); box-shadow: var(--shadow-card-hover); transform: translateY(-1px); }
.agent-name { font-weight: 600; font-size: 0.95rem; display: flex; align-items: center; gap: 8px; }
.agent-type {
  font-size: 0.65rem; padding: 2px 8px; border-radius: 99px;
  background: var(--gradient-card); border: 1px solid var(--border);
  color: var(--text-secondary); font-weight: 500; text-transform: uppercase; letter-spacing: 0.3px;
}
.agent-meta { font-size: 0.8rem; color: var(--text-secondary); margin-top: 8px; display: flex; flex-direction: column; gap: 4px; }
.status-dot {
  width: 8px; height: 8px; border-radius: 50%; display: inline-block; flex-shrink: 0;
}
.status-dot.online { background: var(--success); box-shadow: 0 0 4px var(--success); }
.status-dot.offline { background: var(--text-muted); }
.queue-badge {
  font-size: 0.7rem; padding: 1px 6px; border-radius: 99px;
  background: var(--warning); color: #000; font-weight: 600;
}

/* ===== Activity Feed ===== */
.feed-toolbar {
  display: flex; align-items: center; gap: 12px; margin-bottom: 16px; flex-wrap: wrap;
}
.feed-toolbar select, .feed-toolbar input {
  padding: 6px 10px; border: 1px solid var(--border); border-radius: 8px;
  background: var(--bg-card); color: var(--text-primary); font-size: 0.85rem;
}
.feed-toolbar button {
  padding: 6px 14px; border: 1px solid var(--border); border-radius: 8px;
  background: var(--bg-card); color: var(--text-primary); font-size: 0.85rem;
  cursor: pointer; transition: background 0.15s;
}
.feed-toolbar button:hover { background: var(--bg-secondary); }
.feed-toolbar button.active { background: var(--primary); color: white; border-color: var(--primary); }

.feed-list { display: flex; flex-direction: column; gap: 4px; }
.feed-item {
  display: grid; grid-template-columns: 140px 100px 1fr auto; gap: 12px;
  padding: 10px 16px; border-radius: 8px;
  font-size: 0.85rem; align-items: center;
  border: 1px solid transparent; transition: background 0.1s;
  cursor: pointer;
}
.feed-item:hover { background: var(--bg-secondary); border-color: var(--border); }
.feed-time { color: var(--text-muted); font-size: 0.8rem; font-variant-numeric: tabular-nums; }
.event-badge {
  display: inline-block; padding: 2px 8px; border-radius: 99px;
  font-size: 0.7rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.3px;
}
.event-badge.message { background: rgba(59,130,246,0.15); color: var(--info); }
.event-badge.broadcast { background: rgba(139,92,246,0.15); color: var(--accent); }
.event-badge.connection { background: rgba(16,185,129,0.15); color: #10b981; }
.event-badge.disconnection { background: rgba(245,158,11,0.15); color: var(--warning); }
.event-badge.error { background: rgba(239,68,68,0.15); color: var(--danger); }
.event-badge.presence { background: rgba(107,114,128,0.15); color: var(--text-secondary); }
.feed-agents { color: var(--text-primary); font-weight: 500; }
.feed-agents .arrow { color: var(--text-muted); margin: 0 4px; }
.feed-body-preview { color: var(--text-secondary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.feed-expand { color: var(--text-muted); }
.feed-detail {
  padding: 12px 16px; margin: 0 16px 8px; border-radius: 8px;
  background: var(--bg-secondary); font-family: 'SFMono-Regular', Consolas, monospace;
  font-size: 0.8rem; white-space: pre-wrap; word-break: break-all; color: var(--text-primary);
  border: 1px solid var(--border);
}

/* ===== Chat Stream ===== */
.chat-layout { display: flex; height: calc(100vh - 56px - 48px); gap: 0; }
.chat-sidebar {
  width: 240px; min-width: 240px; border-right: 1px solid var(--border);
  background: var(--bg-card); overflow-y: auto; padding: 12px 0;
}
.chat-sidebar-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 16px; cursor: pointer; font-size: 0.875rem;
  transition: background 0.1s; color: var(--text-secondary);
}
.chat-sidebar-item:hover { background: var(--bg-secondary); }
.chat-sidebar-item.active { background: var(--gradient-card); color: var(--text-primary); font-weight: 600; border-right: 3px solid var(--primary); }
.chat-sidebar-label { font-size: 0.7rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-muted); padding: 12px 16px 4px; }
.chat-unread {
  font-size: 0.65rem; padding: 1px 6px; border-radius: 99px;
  background: var(--primary); color: white; font-weight: 600;
}

.chat-main { flex: 1; display: flex; flex-direction: column; overflow: hidden; }
.chat-messages { flex: 1; overflow-y: auto; padding: 16px 24px; display: flex; flex-direction: column; gap: 8px; }

.chat-bubble {
  display: flex; gap: 10px; align-items: flex-start; max-width: 80%;
}
.chat-avatar {
  width: 32px; height: 32px; border-radius: 50%; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem; font-weight: 700; color: white;
}
.chat-bubble-body {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 12px; padding: 10px 14px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}
.chat-bubble-header {
  display: flex; align-items: center; gap: 8px; margin-bottom: 4px;
}
.chat-sender { font-weight: 600; font-size: 0.8rem; cursor: pointer; }
.chat-sender:hover { text-decoration: underline; color: var(--primary); }
.chat-bubble-time { font-size: 0.7rem; color: var(--text-muted); }
.chat-channel-tag { font-size: 0.65rem; color: var(--accent); background: rgba(139,92,246,0.1); padding: 1px 6px; border-radius: 4px; }
.chat-bubble-content { font-size: 0.875rem; line-height: 1.5; word-break: break-word; }
.chat-bubble-code {
  font-family: 'SFMono-Regular', Consolas, monospace; font-size: 0.8rem;
  background: var(--bg-secondary); border-radius: 6px; padding: 8px 10px;
  margin-top: 6px; white-space: pre-wrap; word-break: break-all;
  border: 1px solid var(--border);
}

.chat-system {
  text-align: center; font-size: 0.75rem; color: var(--text-muted);
  padding: 4px 0; font-style: italic;
}
.chat-system.error { color: var(--danger); }
.chat-system.broadcast {
  background: rgba(139,92,246,0.06); border-radius: 8px;
  padding: 8px 16px; color: var(--accent); font-style: normal;
}

.chat-new-pill {
  position: sticky; bottom: 8px; align-self: center;
  background: var(--primary); color: white; border: none;
  padding: 6px 16px; border-radius: 99px; font-size: 0.8rem;
  cursor: pointer; box-shadow: 0 2px 8px rgba(99,102,241,0.3);
  font-weight: 500; z-index: 10;
}
.chat-new-pill:hover { background: var(--primary-dark); }

/* ===== Agent Panel ===== */
.agent-panel {
  position: fixed; inset: 0; z-index: 200;
}
.agent-panel-backdrop {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.4);
}
.agent-panel-content {
  position: absolute; top: 0; right: 0; bottom: 0;
  width: 480px; max-width: 90vw;
  background: var(--bg-card); box-shadow: -4px 0 24px rgba(0,0,0,0.15);
  display: flex; flex-direction: column;
  animation: slideIn 0.2s ease-out;
}
@keyframes slideIn { from { transform: translateX(100%); } to { transform: translateX(0); } }
.agent-panel-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--border);
  background: var(--gradient-header); color: white;
}
.agent-panel-header h2 { font-size: 1rem; font-weight: 600; }
.btn-icon {
  background: rgba(255,255,255,0.15); border: none; color: white;
  width: 32px; height: 32px; border-radius: 50%; cursor: pointer;
}
.agent-panel-body { flex: 1; overflow-y: auto; padding: 20px; }

.detail-row { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--border); font-size: 0.85rem; }
.detail-label { color: var(--text-secondary); font-weight: 500; }
.detail-value { color: var(--text-primary); font-weight: 600; text-align: right; }

/* ===== Queue Inspector ===== */
.queue-table { width: 100%; border-collapse: separate; border-spacing: 0; }
.queue-table th {
  text-align: left; padding: 10px 16px; font-size: 0.75rem;
  font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px;
  color: var(--text-secondary); border-bottom: 2px solid var(--border);
  background: var(--bg-secondary);
}
.queue-table td {
  padding: 10px 16px; font-size: 0.85rem;
  border-bottom: 1px solid var(--border);
}
.queue-table tr:hover td { background: var(--bg-secondary); }

.btn-danger {
  padding: 4px 10px; border: 1px solid var(--danger); border-radius: 6px;
  background: rgba(239,68,68,0.1); color: var(--danger);
  font-size: 0.75rem; font-weight: 500; cursor: pointer; transition: all 0.15s;
}
.btn-danger:hover { background: var(--danger); color: white; }
.btn-sm {
  padding: 4px 10px; border: 1px solid var(--border); border-radius: 6px;
  background: var(--bg-card); color: var(--text-primary);
  font-size: 0.75rem; cursor: pointer; transition: background 0.15s;
}
.btn-sm:hover { background: var(--bg-secondary); }

/* ===== Chart ===== */
.chart-container { position: relative; height: 250px; }

/* ===== Reconnecting Banner ===== */
.reconnect-banner {
  background: rgba(245,158,11,0.1); border: 1px solid rgba(245,158,11,0.3);
  padding: 8px 16px; border-radius: 8px; text-align: center;
  color: var(--warning); font-size: 0.85rem; margin-bottom: 12px;
  animation: pulse 2s infinite;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .app-header { padding: 0 12px; }
  .header-nav { gap: 0; }
  .nav-link { padding: 8px 10px; font-size: 0.8rem; }
  .nav-link i { display: none; }
  .main-content { padding: 16px; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .agent-grid { grid-template-columns: 1fr; }
  .chat-sidebar { width: 200px; min-width: 200px; }
  .feed-item { grid-template-columns: 100px 80px 1fr; }
  .feed-body-preview { display: none; }
}