#messaging-ui {
  display: flex;
  gap: 20px;
  width: min(100%, 1200px);
  min-height: 620px;
  border: 1px solid var(--border);
  margin: 20px auto;
  background: #fff;
  border-radius: 14px;
  padding: 20px;
  box-shadow: var(--shadow);
  align-items: stretch;
}

#contact-list {
  width: 32%;
  min-width: 260px;
  max-width: 360px;
  background: #fff;
  border: 1px solid var(--border);
  padding: 12px;
  border-radius: 12px;
  overflow-y: auto;
}

#contact-list h4 {
  margin: 0 0 8px;
  color: var(--ink);
}

#contact-list ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
  list-style: none;
  padding: 0;
  margin: 0;
}

#contact-list li {
  list-style: none;
}

#contact-list button {
  width: 100%;
  text-align: left;
  background: #fff;
  color: #1e2327 !important;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 14px;
  box-shadow: 0 6px 14px rgba(30, 35, 39, 0.06);
  font-weight: 600;
  cursor: pointer;
  position: relative;
  opacity: 1;
}

#contact-list button:hover {
  background: #f7f1ea;
}

#contact-list button.unread-flash {
  border-color: #d49b6a;
  box-shadow: 0 0 0 2px rgba(212, 155, 106, 0.2);
  animation: flashBg 1s infinite alternate;
}

@keyframes flashBg {
  0% { background: #ffefef; }
  100% { background: #ffe5e5; }
}

.message-alert-bar {
  display: inline-block;
  margin-left: 8px;
  width: 8px;
  height: 8px;
  background: var(--danger);
  border-radius: 50%;
  animation: blink 1s infinite;
  vertical-align: middle;
}

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

.online-dot {
  display: none;
  width: 8px;
  height: 8px;
  background: #2f9e44;
  border-radius: 50%;
  margin-left: 6px;
  vertical-align: middle;
}

.online-dot.online {
  display: inline-block;
}

#chat-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
  height: 100%;
  padding: 4px 6px;
}

#chat-messages {
  flex-grow: 1;
  background: #fff;
  border: 1px solid var(--border);
  padding: 12px 14px;
  overflow-y: auto;
  border-radius: 10px;
  min-height: 420px;
}

#chat-form {
  display: flex;
  gap: 10px;
  align-items: center;
}

#chat-form input[type="text"] {
  flex-grow: 1;
  padding: 10px 12px;
}

.sent {
  background: var(--accent-soft);
  text-align: right;
  padding: 8px 10px;
  border-radius: 10px;
  margin-bottom: 4px;
}

.received {
  background: #efe7dc;
  text-align: left;
  padding: 8px 10px;
  border-radius: 10px;
  margin-bottom: 4px;
}

.typing {
  color: var(--ink-soft);
  font-size: 13px;
}

.typing-badge {
  font-size: 11px;
  color: #555;
  background: #ffefb5;
  padding: 2px 6px;
  margin-left: 8px;
  border-radius: 8px;
  vertical-align: middle;
}