:root {
  --bg-main: #0f1621;
  --bg-secondary: #17212b;
  --bg-message-out: #2b5278;
  --bg-message-in: #182533;
  --text-primary: #fff;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --accent-color: #64b5f6;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

.chat {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100vh;
}

.chat-header {
  z-index: 100;
  top: 0;
  position: sticky;
  background: var(--bg-secondary);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
}

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

.header-info {
  flex: 1;
  min-width: 0;
}

.header-info h1 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.header-info p {
  font-size: 14px;
  color: var(--text-secondary);
}

.messages {
  flex: 1;
  overflow-y: auto;
  padding: 0 16px;
  display: flex;
  flex-direction: column;
}

.date-divider {
  position: sticky;
  top: 16px;
  text-align: center;
  z-index: 1;
  margin: 16px 0;
}

.date-divider span {
  background: #232e3c;
  padding: 4px 12px;
  border-radius: 16px;
  font-size: 13px;
}

.message-group {
  display: flex;
  flex-direction: column;
  margin-bottom: 16px;
}

.message-sender {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.message {
  min-width: 128px;
  max-width: 75%;
  margin: 4px 0;
  position: relative;
  align-self: flex-start;
}

.message-group .message.first {
  border-top-left-radius: 1rem;
  border-top-right-radius: 1rem;
  border-bottom-left-radius: .3rem;
  border-bottom-right-radius: .3rem;
}

.message-group .message.first.last {
  border-top-left-radius: 1rem;
  border-top-right-radius: 1rem;
}

.message-group .message.first.last.incoming {
  border-bottom-left-radius: 0.5rem;
  border-bottom-right-radius: 1rem;
}

.message-group .message.first.last.outgoing {
  border-bottom-left-radius: 1rem;
  border-bottom-right-radius: .5rem;
}

.message-group .message:not(.first):not(.last) {
  border-radius: 0.3rem;
}

.message-group .message.last {
  border-top-left-radius: .3rem;
  border-top-right-radius: .3rem;
}

.message-group .message.incoming.last {
  border-bottom-left-radius: .3rem;
  border-bottom-right-radius: 1rem;
}

.message-group .message.outgoing.last {
  border-bottom-left-radius: 1rem;
  border-bottom-right-radius: 0.5rem;
}

.message.outgoing {
  align-self: flex-end;
  background: var(--bg-message-out);
}

.message.incoming {
  background: var(--bg-message-in);
}

.message-content {
  padding: 10px 12px;
  border-radius: 12px;
}

.message-text {
  margin-bottom: 4px;
  word-wrap: break-word;
}

.message-meta {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 4px;
  font-size: 12px;
  color: var(--text-secondary);
}

.input-area {
  z-index: 100;
  bottom: 0;
  position: sticky;
  background: var(--bg-secondary);
  padding: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.input-area input {
  flex: 1;
  background: #242f3d;
  border: none;
  border-radius: 20px;
  padding: 10px 16px;
  color: var(--text-primary);
  font-size: 16px;
}

button {
  background: none;
  border: none;
  color: var(--text-secondary);
  padding: 8px;
  cursor: pointer;
  transition: color 0.3s ease;
}

button:hover {
  color: var(--text-primary);
}

.bottom-sheet {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--bg-secondary);
  border-radius: 12px 12px 0 0;
  transform: translateY(100%);
  transition: transform 0.3s ease;
  z-index: 1000;
}

.bottom-sheet.active {
  transform: translateY(0);
}

.bottom-sheet-content {
  padding: 16px;
}

.bottom-sheet-content button {
  width: 100%;
  padding: 10px;
  margin-top: 10px;
  border: none;
  border-radius: 5px;
  background-color: var(--bg-message-out);
  color: var(--text-primary);
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.bottom-sheet-content button:hover {
  background-color: #3a6a9a;
}

.bottom-sheet-content .cancel {
  background-color: transparent;
  color: var(--text-secondary);
}

.bottom-sheet-content .cancel:hover {
  color: var(--text-primary);
}

.action-btn {
  width: 100%;
  padding: 12px;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-primary);
  transition: background-color 0.3s ease;
}

.action-btn:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.action-btn.cancel {
  color: #ff3b30;
}

.material-icons {
  font-size: 24px;
}

.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.4);
}

.modal-content {
  background-color: var(--bg-secondary);
  margin: 15% auto;
  padding: 20px;
  border-radius: 12px;
  width: 90%;
  max-width: 400px;
}

.modal-content * {
  font-size: 16px;
}

.modal-content h2 {
  color: var(--text-primary);
  margin-bottom: 20px;
}

.modal-content input {
  width: 100%;
  padding: 10px;
  margin-bottom: 10px;
  border: none;
  border-radius: 5px;
  background-color: var(--bg-main);
  color: var(--text-primary);
}

.modal-content select {
  width: 100%;
  padding: 10px;
  margin-bottom: 10px;
  border: none;
  border-radius: 5px;
  background-color: var(--bg-main);
  color: var(--text-primary);
  font-size: 16px;
}

.modal-content button {
  width: 100%;
  padding: 10px;
  margin-top: 10px;
  border: none;
  border-radius: 5px;
  background-color: var(--bg-message-out);
  color: var(--text-primary);
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.modal-content button:hover {
  background-color: #3a6a9a;
}

.hidden {
  display: none;
}

.message-actions {
  display: none;
  position: absolute;
  left: -104px;
  top: 50%;
  transform: translate(0%, -50%);
}

.message.incoming .message-actions {
  right: -40px;
  left: auto;
}

.message:hover .message-actions {
  display: flex;
}

.edit-btn,
.delete-btn {
  padding: 4px;
  font-size: 14px;
}

.message.editing {
  width: 100%;
  border: 2px solid var(--accent-color);
}

.message.editing .message-actions {
  display: none;
}

.edit-textarea {
  width: 100%;
  /* min-height: 60px; */
  background: transparent;
  color: var(--text-primary);
  border: none;
  /* border-radius: 4px;
  padding: 8px;
  margin-bottom: 8px; */
  resize: vertical;
}

.edit-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

@media (max-width: 600px) {
  .message {
    max-width: 85%;
  }
}