.spa-chat {
  position: fixed;
  right: max(18px, env(safe-area-inset-right));
  bottom: max(18px, env(safe-area-inset-bottom));
  z-index: 200;
  font-family: var(--sans);
}

.spa-chat [hidden] {
  display: none !important;
}

.chat-launcher {
  display: flex;
  min-width: 260px;
  padding: 0.7rem 1rem 0.7rem 0.7rem;
  align-items: center;
  gap: 0.75rem;
  color: var(--foam);
  border: 0;
  border-radius: 99px;
  background: var(--tide-deep);
  box-shadow: 0 18px 46px rgba(7, 56, 45, 0.28);
  cursor: pointer;
  text-align: left;
  transition: transform 180ms ease, opacity 180ms ease;
}

.chat-launcher:hover {
  transform: translateY(-3px);
}

.chat-launcher.is-hidden {
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
}

.chat-launcher__icon {
  display: grid;
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  place-items: center;
  color: var(--tide-deep);
  background: var(--sea-glass-light);
  border-radius: 50%;
  font-size: 1.1rem;
}

.chat-launcher strong,
.chat-launcher small {
  display: block;
}

.chat-launcher strong {
  font-family: var(--display);
  font-size: 0.87rem;
  font-weight: 400;
}

.chat-launcher small {
  margin-top: 0.05rem;
  color: var(--sea-glass-light);
  font-size: 0.62rem;
  letter-spacing: 0.04em;
}

.chat-panel {
  position: absolute;
  right: 0;
  bottom: 0;
  display: grid;
  width: min(390px, calc(100vw - 30px));
  height: min(620px, calc(100svh - 36px));
  overflow: hidden;
  grid-template-rows: auto 1fr auto auto auto;
  background: var(--foam);
  border: 1px solid rgba(23, 49, 43, 0.14);
  border-radius: 28px 28px 8px 28px;
  box-shadow: 0 28px 80px rgba(7, 56, 45, 0.3);
  opacity: 0;
  pointer-events: none;
  transform: translateY(18px) scale(0.97);
  transform-origin: bottom right;
  transition: opacity 200ms ease, transform 200ms ease;
}

.chat-panel.is-open {
  opacity: 1;
  pointer-events: auto;
  transform: none;
}

.chat-header {
  display: grid;
  padding: 1rem;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.7rem;
  color: var(--foam);
  background: var(--tide-deep);
}

.chat-avatar {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: var(--tide);
  background: var(--sea-glass-light);
  border-radius: 50%;
}

.chat-header strong,
.chat-header span {
  display: block;
}

.chat-header strong {
  font-family: var(--display);
  font-size: 0.96rem;
  font-weight: 400;
}

.chat-header span {
  color: var(--sea-glass-light);
  font-size: 0.64rem;
}

.chat-header i {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 0.35rem;
  background: #7edc91;
  border-radius: 50%;
}

.chat-close {
  width: 44px;
  height: 44px;
  padding: 0;
  color: var(--foam);
  border: 1px solid rgba(255, 253, 248, 0.25);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  font-size: 1.35rem;
}

.chat-messages {
  display: flex;
  min-height: 0;
  padding: 1.1rem;
  overflow-y: auto;
  flex-direction: column;
  gap: 0.75rem;
  overscroll-behavior: contain;
}

.chat-message {
  max-width: 86%;
  padding: 0.75rem 0.9rem;
  border-radius: 5px 18px 18px 18px;
  font-size: 0.78rem;
  line-height: 1.55;
}

.chat-message--assistant {
  align-self: flex-start;
  color: var(--ink);
  background: var(--shell);
}

.chat-message--user {
  align-self: flex-end;
  color: var(--foam);
  background: var(--tide);
  border-radius: 18px 5px 18px 18px;
}

.chat-message a {
  color: inherit;
  font-weight: 600;
}

.chat-message.is-pending {
  display: flex;
  min-width: 58px;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.chat-message.is-pending span {
  width: 5px;
  height: 5px;
  background: var(--ink-soft);
  border-radius: 50%;
  animation: chat-pulse 900ms infinite alternate;
}

.chat-message.is-pending span:nth-child(2) { animation-delay: 150ms; }
.chat-message.is-pending span:nth-child(3) { animation-delay: 300ms; }

@keyframes chat-pulse {
  to { opacity: 0.25; transform: translateY(-3px); }
}

.chat-suggestions {
  display: flex;
  padding: 0 1rem 0.65rem;
  overflow-x: auto;
  gap: 0.45rem;
}

.chat-suggestions button {
  min-height: 44px;
  padding: 0.55rem 0.8rem;
  flex: 0 0 auto;
  color: var(--tide);
  border: 1px solid var(--sea-glass);
  border-radius: 99px;
  background: transparent;
  cursor: pointer;
  font-size: 0.64rem;
}

.chat-suggestions button:hover {
  background: var(--sea-glass-light);
}

.chat-form {
  display: grid;
  margin: 0 0.8rem;
  padding: 0.45rem;
  grid-template-columns: 1fr auto;
  gap: 0.4rem;
  border: 1px solid var(--line);
  border-radius: 99px;
  background: white;
}

.chat-form:focus-within {
  border-color: var(--tide);
  outline: 3px solid var(--sea-glass);
  outline-offset: 3px;
}

.chat-form input {
  min-width: 0;
  padding: 0.45rem 0.6rem;
  border: 0;
  outline: 0;
  background: transparent;
  font-size: 0.74rem;
}

.chat-form input:focus,
.chat-form input:focus-visible {
  outline: 0;
}

.chat-form button {
  width: 44px;
  height: 44px;
  padding: 0;
  color: var(--foam);
  border: 0;
  border-radius: 50%;
  background: var(--coral-dark);
  cursor: pointer;
}

.chat-form button:disabled {
  opacity: 0.5;
  cursor: wait;
}

.chat-privacy {
  margin: 0;
  padding: 0.55rem 1rem 0.7rem;
  color: var(--ink-soft);
  font-size: 0.58rem;
  text-align: center;
}

@media (max-width: 520px) {
  .spa-chat {
    right: 12px;
    bottom: 12px;
  }

  .chat-launcher {
    min-width: 190px;
    padding: 0.55rem 0.8rem 0.55rem 0.55rem;
  }

  .chat-launcher small {
    display: none;
  }

  .chat-panel {
    width: calc(100vw - 24px);
    height: min(660px, calc(100svh - 24px));
    border-radius: 22px 22px 6px 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .chat-panel,
  .chat-launcher { transition: none; }
}