:root {
  --bg: #0f1419;
  --surface: #1a2332;
  --surface-2: #243044;
  --border: #2d3a4d;
  --text: #e7ecf1;
  --muted: #8b9bb4;
  --accent: #4a90d9;
  --accent-dim: #2d5a8a;
  --ok: #2ecc71;
  --warn: #e6a23c;
  --danger: #e74c3c;
}

* { box-sizing: border-box; }

body {
  font-family: system-ui, -apple-system, sans-serif;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.app-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.65rem 1rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.app-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.app-brand h1 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 600;
}

.core-badge {
  font-size: 0.75rem;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  font-weight: 500;
}

.core-badge.online {
  background: rgba(46, 204, 113, 0.15);
  color: var(--ok);
  border: 1px solid rgba(46, 204, 113, 0.35);
}

.core-badge.offline {
  background: rgba(231, 76, 60, 0.12);
  color: var(--danger);
  border: 1px solid rgba(231, 76, 60, 0.3);
}

.network-bar {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
  flex: 1;
  min-width: 240px;
}

.network-bar-label { font-size: 0.82rem; color: var(--muted); }

.network-bar select,
.network-bar input,
.auth-token-bar input {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.35rem 0.5rem;
  font-size: 0.85rem;
}

.network-bar input { width: 9.5rem; }

.network-bar button,
.auth-token-bar button {
  background: var(--accent-dim);
  color: #fff;
  border: none;
  padding: 0.35rem 0.65rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.85rem;
}

.network-bar-status {
  font-size: 0.75rem;
  color: #6b8cae;
  flex: 1 1 100%;
}

.auth-token-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 1 1 100%;
}

.auth-token-hidden { display: none; }

.auth-token-label { font-size: 0.82rem; color: var(--muted); }

.auth-token-bar input { width: 14rem; }

.addon-nav {
  display: flex;
  gap: 0.35rem;
  margin-left: auto;
}

.addon-nav button {
  background: transparent;
  color: var(--muted);
  border: 1px solid transparent;
  padding: 0.4rem 0.85rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.88rem;
}

.addon-nav button:hover { color: var(--text); background: var(--surface-2); }

.addon-nav button.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.addon-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}

.addon-panel > p {
  padding: 1.5rem;
  margin: 0;
}

/* —— comm layout (voice / video / chat) —— */

.comm-layout {
  display: flex;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.comm-sidebar {
  width: 300px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border);
  background: var(--bg);
  min-height: 0;
}

/* Chat & voice: 25% contact list / 75% main panel */
.comm-layout.comm-split-layout .comm-sidebar {
  width: 25%;
  max-width: 25%;
  flex: 0 0 25%;
  min-width: 200px;
}

.comm-layout.comm-split-layout .comm-main {
  flex: 1 1 75%;
  width: 75%;
  max-width: 75%;
  min-width: 0;
}

.comm-layout.comm-split-layout .comm-sidebar-head {
  padding: 0.75rem 0.75rem 0.4rem;
}

.comm-layout.comm-split-layout .comm-sidebar-head h2 {
  font-size: 0.95rem;
}

.comm-layout.comm-split-layout .comm-sidebar-body {
  padding: 0.5rem 0.65rem;
  overflow: hidden;
}

.comm-layout.comm-split-layout .comm-sidebar-actions {
  padding: 0.5rem 0.65rem 0.75rem;
}

.comm-sidebar-head {
  padding: 1rem 1rem 0.5rem;
  border-bottom: 1px solid var(--border);
}

.comm-sidebar-head h2 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
  font-weight: 600;
}

.comm-sidebar-sub {
  margin: 0;
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1.4;
}

.comm-sidebar-body {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: 0.75rem 1rem;
  display: flex;
  flex-direction: column;
}

.comm-sidebar-actions {
  padding: 0.75rem 1rem 1rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.comm-selected-label {
  font-size: 0.78rem;
  color: var(--muted);
  margin-bottom: 0.15rem;
}

.comm-selected-label strong {
  color: var(--text);
  font-family: ui-monospace, monospace;
}

.comm-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  background: #0a0e14;
}

.comm-main-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  font-size: 0.85rem;
}

.comm-breadcrumb {
  color: var(--muted);
}

.comm-breadcrumb strong { color: var(--text); }

.comm-head-status {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--muted);
  font-size: 0.82rem;
}

.comm-head-status .connected {
  color: var(--ok);
  font-weight: 500;
}

.comm-stage {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
  background: #000;
}

.comm-stage video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #000;
}

.comm-remote-placeholder {
  text-align: center;
  color: var(--muted);
}

.comm-remote-placeholder .avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--surface-2);
  margin: 0 auto 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: #5a6a7d;
}

.comm-remote-placeholder .peer-id {
  font-family: ui-monospace, monospace;
  color: var(--text);
  font-size: 0.95rem;
}

.comm-remote-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(0, 0, 0, 0.55);
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.comm-remote-tag .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.comm-call-controls {
  position: absolute;
  bottom: 1.25rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.5rem;
  padding: 0.45rem;
  background: rgba(26, 35, 50, 0.92);
  border-radius: 10px;
  border: 1px solid var(--border);
}

.comm-call-controls button {
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 0.45rem 0.85rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.82rem;
}

.comm-call-controls button.danger {
  background: var(--danger);
  border-color: var(--danger);
  color: #fff;
}

.comm-connection-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem 2rem;
  padding: 0.65rem 1rem;
  background: var(--surface);
  border-top: 1px solid var(--border);
  font-size: 0.78rem;
}

.comm-stat label {
  display: block;
  color: var(--muted);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.15rem;
}

.comm-stat span {
  font-family: ui-monospace, monospace;
  font-size: 0.82rem;
}

.comm-stat .latency-ok { color: var(--ok); }

.comm-quality {
  display: inline-flex;
  align-items: flex-end;
  gap: 2px;
  height: 14px;
}

.comm-quality span {
  width: 3px;
  background: var(--ok);
  border-radius: 1px;
}

.comm-quality span:nth-child(1) { height: 4px; }
.comm-quality span:nth-child(2) { height: 7px; }
.comm-quality span:nth-child(3) { height: 10px; }
.comm-quality span:nth-child(4) { height: 14px; }

/* —— peer picker —— */

.peer-picker { display: flex; flex-direction: column; flex: 1; min-height: 0; }

.peer-info-box {
  font-size: 0.82rem;
  color: #9eb4d0;
  margin-bottom: 0.75rem;
  padding: 0.55rem 0.65rem;
  background: rgba(45, 90, 138, 0.25);
  border: 1px solid rgba(74, 144, 217, 0.25);
  border-radius: 6px;
  line-height: 1.35;
}

.peer-picker-row { display: block; margin-bottom: 0.65rem; }

.peer-picker-row input {
  width: 100%;
  margin-top: 0.25rem;
  padding: 0.45rem 0.55rem;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.85rem;
}

.peer-list {
  list-style: none;
  padding: 0;
  margin: 0;
  --peer-row-height: 3.25rem;
  max-height: calc(var(--peer-row-height) * 10);
  flex: 0 1 auto;
  overflow-x: hidden;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 6px;
  scrollbar-gutter: stable;
}

.peer-item {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  min-height: var(--peer-row-height);
  padding: 0.55rem 0.65rem;
  cursor: pointer;
  border-bottom: 1px solid var(--border);
  box-sizing: border-box;
}

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

.peer-item:hover,
.peer-item.active {
  background: var(--surface-2);
}

.peer-item.active { border-left: 3px solid var(--accent); padding-left: calc(0.65rem - 3px); }

.peer-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #666;
  flex-shrink: 0;
  margin-top: 0.35rem;
}

.peer-item.online .peer-dot { background: var(--ok); }

.peer-main { flex: 1; min-width: 0; }

.peer-name {
  display: block;
  font-family: ui-monospace, monospace;
  font-size: 0.88rem;
}

.peer-sub {
  color: var(--muted);
  font-size: 0.72rem;
  display: block;
  margin-top: 0.15rem;
}

.peer-edit {
  background: transparent;
  border: none;
  color: var(--muted);
  cursor: pointer;
  padding: 0.2rem;
  font-size: 0.85rem;
}

.peer-empty { padding: 1rem; color: var(--muted); font-size: 0.85rem; }

.peer-network-warn { color: var(--warn); }

.btn-primary {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 0.55rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.88rem;
  font-weight: 500;
}

.btn-primary:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-secondary {
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 0.55rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.88rem;
}

/* —— chat —— */

.chat-thread-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}

.comm-split-layout .chat-thread-panel {
  padding: 0;
}

.chat-thread-header {
  flex-shrink: 0;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  margin: 0;
  font-size: 0.9rem;
  background: var(--surface);
}

.chat-thread-header small {
  color: var(--muted);
  font-weight: normal;
  margin-left: 0.35rem;
}

.chat-messages,
#chat-thread {
  flex: 1;
  overflow: auto;
  padding: 1rem;
  margin: 0;
  border: none;
  border-radius: 0;
  background: #0a0e14;
}

.chat-empty {
  color: var(--muted);
  text-align: center;
  margin: 2rem 0;
  font-size: 0.88rem;
}

.chat-message {
  margin-bottom: 1rem;
  max-width: 85%;
}

.chat-message-meta {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
}

.chat-message-sender {
  color: #e8a54b;
  font-weight: 600;
  font-size: 0.88rem;
}

.chat-message-time {
  color: var(--muted);
  font-size: 0.72rem;
}

.chat-message-body {
  color: var(--text);
  font-size: 0.9rem;
  line-height: 1.45;
  white-space: pre-wrap;
  word-break: break-word;
}

.chat-message-file {
  margin-top: 0.35rem;
  font-size: 0.85rem;
  color: var(--accent);
}

.chat-compose {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--border);
  background: var(--surface);
}

.chat-compose textarea {
  width: 100%;
  padding: 0.5rem;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  resize: vertical;
}

.chat-compose-row {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

/* —— voice —— */

.voice-main-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
  background: #0a0e14;
}

.voice-active-banner {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.65rem 1rem;
  background: rgba(45, 90, 138, 0.35);
  border-bottom: 1px solid var(--border);
  font-size: 0.88rem;
}

.voice-active-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ok);
  margin-right: 0.4rem;
}

.voice-active-controls {
  display: flex;
  gap: 0.5rem;
}

.voice-active-controls button {
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 0.35rem 0.75rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.82rem;
}

.voice-active-controls button.danger {
  background: var(--danger);
  border-color: var(--danger);
  color: #fff;
}

.voice-session-hint {
  margin: 1rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.voice-remote-audio {
  display: none;
}

.voice-history-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}

.voice-history-title {
  margin: 0;
  padding: 0.75rem 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  background: var(--surface);
}

.voice-call-history {
  list-style: none;
  margin: 0;
  padding: 0;
  flex: 1;
  overflow-y: auto;
}

.voice-call-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
}

.voice-call-item:hover {
  background: var(--surface-2);
}

.voice-call-icon {
  width: 1.75rem;
  text-align: center;
  font-size: 1rem;
  color: var(--accent);
  flex-shrink: 0;
}

.voice-call-main {
  flex: 1;
  min-width: 0;
}

.voice-call-name {
  display: block;
  font-size: 0.9rem;
  font-family: ui-monospace, monospace;
}

.voice-call-sub {
  color: var(--muted);
  font-size: 0.75rem;
}

.voice-call-when {
  flex-shrink: 0;
  color: var(--muted);
  font-size: 0.75rem;
}

.voice-call-empty {
  padding: 2rem 1rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.88rem;
}

/* legacy voice stage (unused) */
.voice-stage-inner {
  text-align: center;
  padding: 2rem;
}

.voice-stage-inner .avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: var(--surface-2);
  margin: 0 auto 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
}

/* —— ringing popup —— */

.ringing-hidden { display: none; }

#ringing-popup {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

#ringing-popup.ringing-hidden { display: none; }

.ringing-card {
  background: var(--surface);
  padding: 2rem;
  border-radius: 12px;
  text-align: center;
  min-width: 280px;
}

.ringing-card button {
  margin: 0.5rem;
  padding: 0.6rem 1.2rem;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

.ringing-accept { background: var(--ok); color: #000; }
.ringing-reject { background: var(--danger); color: #fff; }

/* —— video call: remote fills main stage, local is PiP —— */

.comm-layout.video-in-call .comm-sidebar {
  display: none;
}

.comm-layout.video-in-call .comm-main-head {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 4;
  background: linear-gradient(to bottom, rgba(10, 14, 20, 0.85), transparent);
  border-bottom: none;
}

.video-stage .video-remote-main {
  position: absolute;
  inset: 0;
  z-index: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000;
}

.video-stage .video-remote-stream {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.video-stage .video-remote-stream.active {
  opacity: 1;
}

.video-stage.has-remote .comm-remote-placeholder {
  display: none;
}

.video-stage .comm-remote-tag {
  z-index: 3;
}

.video-local-pip {
  position: absolute;
  bottom: 4.5rem;
  right: 1rem;
  width: 180px;
  z-index: 3;
  border-radius: 8px;
  overflow: hidden;
  border: 2px solid rgba(255, 255, 255, 0.2);
  background: #000;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.45);
}

.video-pip-label {
  position: absolute;
  top: 6px;
  left: 8px;
  z-index: 1;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.85);
  background: rgba(0, 0, 0, 0.5);
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
}

.video-local-pip video {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.video-stage .comm-call-controls {
  z-index: 4;
}