.chat-window {
  width: 320px;
  height: 420px;
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid rgba(148, 163, 184, 0.3);
  border-radius: 12px 12px 0 0;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.4);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  backdrop-filter: blur(12px);
}

.chat-window--minimized {
  height: auto;
  cursor: pointer;
}

.chat-window--minimized:hover {
  background: rgba(30, 41, 59, 0.95);
}

/* Header */
.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  background: linear-gradient(135deg, rgba(30, 58, 138, 0.8), rgba(59, 130, 246, 0.6));
  border-bottom: 1px solid rgba(148, 163, 184, 0.2);
}

.chat-user {
  display: flex;
  align-items: center;
  gap: 10px;
}

.chat-avatar-sm {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
  font-size: 14px;
  position: relative;
  overflow: hidden;
}

.chat-avatar-sm img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.chat-avatar-sm.online::after {
  content: "";
  position: absolute;
  bottom: 0;
  right: 0;
  width: 10px;
  height: 10px;
  background: #22c55e;
  border: 2px solid rgba(15, 23, 42, 0.95);
  border-radius: 50%;
}

.chat-user-info {
  display: flex;
  flex-direction: column;
}

.chat-username {
  font-weight: 600;
  font-size: 14px;
  color: #f1f5f9;
}

.chat-status {
  font-size: 11px;
  color: #22c55e;
}

.chat-actions {
  display: flex;
  gap: 4px;
}

.chat-minimize,
.chat-close {
  width: 26px;
  height: 26px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: #e2e8f0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  transition: background 0.2s;
}

.chat-minimize:hover,
.chat-close:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* Messages */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.chat-empty {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(148, 163, 184, 0.7);
  font-size: 13px;
}

.chat-msg {
  max-width: 80%;
  padding: 8px 12px;
  border-radius: 16px;
  background: rgba(59, 130, 246, 0.15);
  color: #e2e8f0;
  font-size: 13px;
  line-height: 1.4;
  align-self: flex-start;
}

.chat-msg--mine {
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  color: white;
  align-self: flex-end;
}

.chat-msg-content {
  word-break: break-word;
}

.chat-msg-meta {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 4px;
  margin-top: 4px;
}

.chat-msg-time {
  font-size: 10px;
  color: rgba(148, 163, 184, 0.7);
}

.chat-msg--mine .chat-msg-time {
  color: rgba(255, 255, 255, 0.7);
}

.chat-msg-status {
  font-size: 10px;
  color: rgba(255, 255, 255, 0.6);
}

.chat-msg-status i {
  font-size: 10px;
}

.chat-msg-status i.read {
  color: #22c55e;
}

/* Typing indicator */
.chat-typing {
  display: flex;
  gap: 4px;
  padding: 8px 12px;
  align-self: flex-start;
}

.chat-typing-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(148, 163, 184, 0.5);
  animation: typingBounce 1.4s infinite ease-in-out both;
}

.chat-typing-dot:nth-child(1) {
  animation-delay: 0s;
}
.chat-typing-dot:nth-child(2) {
  animation-delay: 0.2s;
}
.chat-typing-dot:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes typingBounce {
  0%,
  80%,
  100% {
    transform: scale(0.6);
    opacity: 0.4;
  }
  40% {
    transform: scale(1);
    opacity: 1;
  }
}

/* Input */
.chat-input-area {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-top: 1px solid rgba(148, 163, 184, 0.2);
  background: rgba(15, 23, 42, 0.6);
}

.chat-input {
  flex: 1;
  padding: 8px 14px;
  border: 1px solid rgba(148, 163, 184, 0.3);
  border-radius: 20px;
  background: rgba(30, 41, 59, 0.8);
  color: #f1f5f9;
  font-size: 13px;
  outline: none;
}

.chat-input::placeholder {
  color: rgba(148, 163, 184, 0.6);
}

.chat-input:focus {
  border-color: #3b82f6;
}

.chat-send {
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 50%;
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: transform 0.2s, opacity 0.2s;
}

.chat-send:hover:not(:disabled) {
  transform: scale(1.05);
}

.chat-send:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Light theme */
body[data-theme="light"] .chat-window {
  background: rgba(255, 255, 255, 0.98);
  border-color: rgba(148, 163, 184, 0.4);
}

body[data-theme="light"] .chat-header {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.9), rgba(99, 102, 241, 0.8));
}

body[data-theme="light"] .chat-username {
  color: #f1f5f9;
}

body[data-theme="light"] .chat-messages {
  background: #f8fafc;
}

body[data-theme="light"] .chat-msg {
  background: rgba(59, 130, 246, 0.1);
  color: #1e293b;
}

body[data-theme="light"] .chat-input-area {
  background: rgba(255, 255, 255, 0.9);
}

body[data-theme="light"] .chat-input {
  background: #f1f5f9;
  color: #1e293b;
  border-color: rgba(148, 163, 184, 0.4);
}

/* Responsive */
@media (max-width: 640px) {
  .chat-window {
    width: 100%;
    max-width: 100vw;
    height: 50vh;
    height: 50dvh; /* Dynamic viewport height - accounts for keyboard */
    max-height: calc(100vh - 60px);
    max-height: calc(100dvh - 60px);
    border-radius: 16px 16px 0 0;
  }

  .chat-input-area {
    padding-bottom: max(10px, env(safe-area-inset-bottom, 10px));
  }
}