/* Chat Page (mobile full-page chat) */
.chat-page {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
  background: var(--background-color);
  font-family: var(--font-family);
  max-width: 100%;
  overflow: hidden;
}

.chat-page .chat-header {
  background: var(--accent-color);
  color: #fff;
  padding: 10px 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-shrink: 0;
}

.chat-page .chat-header-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.chat-page .chat-header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.chat-page .chat-clear {
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.5);
  color: rgba(255, 255, 255, 0.7);
  font-family: var(--font-family);
  font-size: 0.7rem;
  cursor: pointer;
  padding: 2px 6px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.chat-page .chat-clear:hover {
  color: #fff;
  border-color: #fff;
}

.chat-page .chat-back {
  background: none;
  border: none;
  color: #fff;
  font-family: var(--font-family);
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  padding: 0;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.chat-page .chat-back:hover {
  opacity: 0.7;
}

.chat-page .chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.chat-page .chat-message {
  font-size: 0.85rem;
  line-height: 1.55;
  color: var(--text-color);
  padding: 8px 10px;
  border-left: 3px solid var(--border-color);
  max-width: 90%;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.chat-page .chat-message.user {
  border-left: none;
  border-right: 3px solid var(--accent-color);
  align-self: flex-end;
  text-align: right;
}

.chat-page .chat-message.assistant {
  align-self: flex-start;
}

.chat-page .chat-message a {
  color: var(--link-color);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.chat-page .chat-cursor {
  display: inline-block;
  width: 0.55em;
  height: 1.05em;
  background: var(--accent-color);
  vertical-align: text-bottom;
  animation: chat-page-blink 0.7s step-end infinite;
}

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

.chat-page .chat-status {
  font-size: 0.75rem;
  color: var(--secondary-color);
  padding: 6px 14px;
  text-align: center;
  border-top: 1px solid var(--border-color);
  display: none;
}

.chat-page .chat-status.visible {
  display: block;
}

.chat-page .chat-input-area {
  display: flex;
  flex-shrink: 0;
}

.chat-page .chat-input {
  flex: 1;
  padding: 10px 12px;
  border: 2px solid var(--primary-color);
  border-right: none;
  background: #fff;
  font-family: var(--font-family);
  font-size: 0.85rem;
  color: var(--primary-color);
  outline: none;
}

.chat-page .chat-input::placeholder {
  color: var(--secondary-color);
}

.chat-page .chat-send {
  background: var(--accent-color);
  color: #fff;
  border: 2px solid var(--primary-color);
  border-left: none;
  padding: 10px 14px;
  font-family: var(--font-family);
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  text-transform: uppercase;
}

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