.chat-wrap {
  max-width: 720px;
  margin: 30px auto;
  padding: 0 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.chat-header h1 {
  margin: 0 0 2px 0;
  font-size: 24px;
  color: #e8ecf1;
}

.chat-sub {
  margin: 0;
  font-size: 13px;
  color: #6b7a8d;
}

/* Card */
.chat-card {
  background: #161a22;
  border: 1px solid #222938;
  border-radius: 10px;
  padding: 14px;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.18);
}

/* Config panel */
.chat-config-toggle {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
  color: #9aa4b2;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.chat-config-toggle i {
  transition: transform 0.2s;
}

.chat-config-toggle.collapsed i {
  transform: rotate(-90deg);
}

.chat-config-body {
  margin-top: 12px;
  overflow: hidden;
  transition: max-height 0.25s ease;
}

.chat-config-body.hidden {
  max-height: 0 !important;
  margin-top: 0;
  padding: 0;
}

.chat-grid {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 10px 14px;
  align-items: center;
}

.chat-grid label {
  font-size: 13px;
  color: #8892a2;
}

.chat-field {
  padding: 8px 10px;
  border-radius: 6px;
  border: 1px solid #2a3346;
  background: #0f131b;
  color: #e8ecf1;
  font-size: 13px;
  outline: none;
  transition: border-color 0.15s;
}

.chat-field:focus {
  border-color: #2563eb;
}

.chat-checkboxes {
  display: flex;
  gap: 16px;
}

.chat-checkboxes label {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 13px;
  color: #b0b8c8;
  cursor: pointer;
}

.chat-config-actions {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}

/* Buttons */
.chat-btn {
  padding: 8px 18px;
  border: none;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s;
}

.chat-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.chat-btn-blue {
  background: #2563eb;
  color: #fff;
}

.chat-btn-blue:hover:not(:disabled) {
  background: #1d4ed8;
}

.chat-btn-red {
  background: #dc2626;
  color: #fff;
}

.chat-btn-red:hover:not(:disabled) {
  background: #b91c1c;
}

.chat-btn-muted {
  background: #262c3a;
  color: #9aa4b2;
}

.chat-btn-muted:hover:not(:disabled) {
  background: #303848;
}

/* Status */
.chat-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: #6b7a8d;
  padding: 0 4px;
}

.chat-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #555;
  flex-shrink: 0;
}

.chat-status-dot.open {
  background: #22c55e;
}

/* Messages area */
.chat-messages {
  min-height: 250px;
  max-height: 450px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 12px !important;
}

.chat-messages:empty::before {
  content: "No messages yet";
  color: #444d5e;
  font-size: 13px;
  text-align: center;
  padding: 40px 0;
  display: block;
}

.chat-msg {
  max-width: 80%;
  padding: 8px 12px;
  border-radius: 10px;
  font-size: 13px;
  line-height: 1.45;
  word-break: break-word;
}

.chat-msg.outgoing {
  background: #1e3a5f;
  align-self: flex-end;
  border-bottom-right-radius: 3px;
}

.chat-msg.incoming {
  background: #2a2d38;
  align-self: flex-start;
  border-bottom-left-radius: 3px;
}

.chat-msg-sender {
  font-size: 11px;
  font-weight: 600;
  margin-bottom: 2px;
}

.outgoing .chat-msg-sender {
  color: #60a5fa;
}

.incoming .chat-msg-sender {
  color: #a78bfa;
}

.chat-msg-text {
  color: #dce1ea;
}

.chat-msg-time {
  font-size: 10px;
  color: #505a6a;
  text-align: right;
  margin-top: 3px;
}

/* Input area */
.chat-input-area {
  display: flex;
  gap: 8px;
}

.chat-msg-field {
  flex: 1;
}

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

.chat-messages::-webkit-scrollbar-track {
  background: transparent;
}

.chat-messages::-webkit-scrollbar-thumb {
  background: #2a3346;
  border-radius: 3px;
}

.chat-messages::-webkit-scrollbar-thumb:hover {
  background: #3a4a60;
}