/* ============================================
   Chat Page — Full-screen AI Concierge
   ============================================ */

.chat-page {
  display: flex;
  flex-direction: column;
  height: 100vh;
  padding-top: var(--header-height);
}

/* --- Welcome State --- */
.chat-page__welcome {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-lg);
}

.chat-page__welcome-inner {
  max-width: 600px;
}

.chat-page__suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
}

.chat-page__suggestion {
  padding: 10px 18px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  color: var(--color-ink-light);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
}

.chat-page__suggestion:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-subtle);
}

/* --- Messages Area --- */
.chat-page__messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-lg) var(--space-lg) var(--space-xl);
  display: none;
  flex-direction: column;
  gap: var(--space-lg);
  max-width: var(--content-narrow);
  width: 100%;
  margin: 0 auto;
}

.chat-page__messages.active {
  display: flex;
}

.chat-page__message {
  display: flex;
  gap: var(--space-md);
  animation: messageIn var(--duration-normal) var(--ease-out);
}

@keyframes messageIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.chat-page__message--user {
  flex-direction: row-reverse;
}

.chat-page__avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 600;
}

.chat-page__message--assistant .chat-page__avatar {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.chat-page__message--user .chat-page__avatar {
  background: var(--color-surface-alt);
  color: var(--color-ink-light);
}

.chat-page__bubble {
  max-width: 75%;
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-lg);
  font-size: 0.9375rem;
  line-height: 1.65;
}

.chat-page__message--assistant .chat-page__bubble {
  background: var(--color-surface-alt);
  color: var(--color-ink);
  border-top-left-radius: var(--space-xs);
}

.chat-page__message--user .chat-page__bubble {
  background: var(--color-primary);
  color: #fff;
  border-top-right-radius: var(--space-xs);
}

.chat-page__bubble p { margin-bottom: var(--space-sm); }
.chat-page__bubble p:last-child { margin-bottom: 0; }
.chat-page__bubble strong { font-weight: 600; }
.chat-page__bubble ul, .chat-page__bubble ol {
  padding-left: var(--space-lg);
  margin-bottom: var(--space-sm);
}
.chat-page__bubble li { margin-bottom: var(--space-xs); }

/* Stay card embedded in chat */
.chat-stay-card {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  margin: var(--space-sm) 0;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
}

.chat-stay-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.chat-stay-card__image {
  width: 80px;
  height: 64px;
  border-radius: var(--radius-sm);
  background: var(--color-surface-alt);
  flex-shrink: 0;
  object-fit: cover;
}

.chat-stay-card__info {
  flex: 1;
  min-width: 0;
}

.chat-stay-card__title {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 2px;
}

.chat-stay-card__location {
  font-size: 0.75rem;
  color: var(--color-ink-muted);
}

.chat-stay-card__price {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-top: var(--space-xs);
}

/* Typing indicator */
.typing-indicator {
  display: flex;
  gap: 4px;
  padding: var(--space-md) var(--space-lg);
  align-items: center;
}

.typing-indicator__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-ink-muted);
  animation: typingBounce 1.4s infinite ease-in-out;
}

.typing-indicator__dot:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator__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 Area --- */
.chat-page__input-area {
  padding: var(--space-md) var(--space-lg) var(--space-lg);
  max-width: var(--content-narrow);
  width: 100%;
  margin: 0 auto;
}

.chat-page__input-wrapper {
  display: flex;
  align-items: flex-end;
  gap: var(--space-sm);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-sm) var(--space-sm) var(--space-sm) var(--space-md);
  transition: border-color var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out);
}

.chat-page__input-wrapper:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.chat-page__input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 1rem;
  line-height: 1.5;
  resize: none;
  max-height: 120px;
  background: transparent;
  color: var(--color-ink);
  font-family: var(--font-sans);
}

.chat-page__input::placeholder {
  color: var(--color-ink-muted);
}

.chat-page__send {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--duration-fast) var(--ease-out);
}

.chat-page__send:disabled {
  background: var(--color-border);
  cursor: not-allowed;
}

.chat-page__send:not(:disabled):hover {
  background: var(--color-primary-hover);
}

.chat-page__send svg {
  width: 18px;
  height: 18px;
}

.chat-page__disclaimer {
  text-align: center;
  font-size: 0.75rem;
  color: var(--color-ink-muted);
  margin-top: var(--space-sm);
}

/* --- Mobile optimizations --- */
@media (max-width: 640px) {
  .chat-page__bubble {
    max-width: 90%;
    padding: var(--space-sm) var(--space-md);
  }

  .chat-page__avatar {
    width: 28px;
    height: 28px;
  }

  .chat-page__input-area {
    padding: var(--space-sm) var(--space-md) var(--space-md);
  }

  .chat-page__suggestion {
    font-size: 0.8125rem;
    padding: 8px 14px;
  }

  .chat-stay-card {
    flex-direction: column;
  }

  .chat-stay-card__image {
    width: 100%;
    height: 100px;
  }
}