/* Assistente da landing — paleta do site, só na homepage */

.rf-chat {
  --rf-z: 3000;
  --rf-panel-w: min(100vw - 1.5rem, 22.5rem);
  --rf-panel-h: min(34rem, calc(100dvh - 6.5rem));
  font-family: var(--font-body);
  color: var(--color-text);
}

.rf-chat__fab {
  position: fixed;
  right: max(1rem, env(safe-area-inset-right));
  bottom: max(1rem, env(safe-area-inset-bottom));
  z-index: var(--rf-z);
  width: 3.5rem;
  height: 3.5rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-white);
  box-shadow: 0 10px 28px color-mix(in srgb, var(--color-accent) 38%, transparent);
  transition: background var(--transition), transform var(--transition);
}

.rf-chat__fab:hover {
  background: var(--color-accent-dark);
}

.rf-chat__fab:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.rf-chat__fab svg {
  width: 1.45rem;
  height: 1.45rem;
}

.rf-chat__fab-close {
  display: none;
}

.rf-chat.is-open .rf-chat__fab-open {
  display: none;
}

.rf-chat.is-open .rf-chat__fab-close {
  display: block;
}

.rf-chat__panel {
  position: fixed;
  right: max(0.75rem, env(safe-area-inset-right));
  bottom: calc(3.5rem + 1.35rem + env(safe-area-inset-bottom));
  z-index: var(--rf-z);
  width: var(--rf-panel-w);
  height: var(--rf-panel-h);
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
  border: 1px solid color-mix(in srgb, var(--color-secondary) 70%, transparent);
  box-shadow: 0 18px 50px color-mix(in srgb, var(--color-text) 18%, transparent);
  overflow: hidden;
}

.rf-chat__panel[hidden] {
  display: none;
}

.rf-chat__header {
  flex-shrink: 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.9rem 1rem 0.75rem;
  background: color-mix(in srgb, var(--color-white) 72%, var(--color-bg));
  border-bottom: 1px solid color-mix(in srgb, var(--color-secondary) 55%, transparent);
}

.rf-chat__close {
  display: none;
  flex-shrink: 0;
  width: 2.75rem;
  height: 2.75rem;
  color: var(--color-text-muted);
}

.rf-chat__close svg {
  width: 1.15rem;
  height: 1.15rem;
}

.rf-chat__kicker {
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.rf-chat__title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
  line-height: 1.25;
}

.rf-chat__sub {
  margin-top: 0.15rem;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.rf-chat__log {
  flex: 1;
  overflow-y: auto;
  padding: 0.9rem 0.9rem 0.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  -webkit-overflow-scrolling: touch;
}

.rf-chat__bubble {
  max-width: 92%;
  padding: 0.7rem 0.85rem;
  font-size: 0.9rem;
  line-height: 1.5;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.rf-chat__bubble--bot {
  align-self: flex-start;
  background: var(--color-white);
  border-radius: 4px 16px 16px 16px;
  color: var(--color-text);
}

.rf-chat__bubble--user {
  align-self: flex-end;
  background: var(--color-accent);
  color: var(--color-white);
  border-radius: 16px 4px 16px 16px;
}

.rf-chat__typing {
  display: flex;
  gap: 0.28rem;
  padding: 0.75rem 0.9rem;
}

.rf-chat__typing span {
  width: 0.38rem;
  height: 0.38rem;
  border-radius: 50%;
  background: var(--color-accent);
  opacity: 0.45;
  animation: rf-dot 1s ease infinite;
}

.rf-chat__typing span:nth-child(2) {
  animation-delay: 0.15s;
}

.rf-chat__typing span:nth-child(3) {
  animation-delay: 0.3s;
}

@keyframes rf-dot {
  0%,
  80%,
  100% {
    opacity: 0.3;
    transform: translateY(0);
  }
  40% {
    opacity: 1;
    transform: translateY(-3px);
  }
}

.rf-chat__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding: 0.35rem 0.9rem 0.55rem;
}

.rf-chat__chip {
  min-height: 2.5rem;
  padding: 0.35rem 0.75rem;
  font-size: 0.78rem;
  color: var(--color-text);
  background: var(--color-white);
  border: 1px solid color-mix(in srgb, var(--color-secondary) 80%, transparent);
  border-radius: 999px;
}

.rf-chat__chip:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-dark);
}

.rf-chat__composer {
  flex-shrink: 0;
  display: flex;
  gap: 0.4rem;
  padding: 0.55rem 0.75rem;
  background: linear-gradient(to top, var(--color-bg) 70%, transparent);
}

.rf-chat__input {
  flex: 1;
  min-height: 2.75rem;
  padding: 0.55rem 0.75rem;
  font-size: 16px;
  font-family: inherit;
  color: var(--color-text);
  background: var(--color-white);
  border: 1px solid color-mix(in srgb, var(--color-secondary) 80%, transparent);
  border-radius: 2px;
}

.rf-chat__input:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
}

.rf-chat__send {
  min-width: 2.75rem;
  min-height: 2.75rem;
  padding: 0 0.85rem;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--color-white);
  background: var(--color-accent);
  border-radius: 2px;
}

.rf-chat__send:hover {
  background: var(--color-accent-dark);
}

.rf-chat__send:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.rf-chat__wa {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 2.75rem;
  margin: 0 0.75rem 0.75rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-white);
  background: var(--color-whatsapp);
  border-radius: 2px;
}

.rf-chat__wa:hover {
  background: var(--color-whatsapp-dark);
}

.rf-chat__wa svg {
  width: 1.05rem;
  height: 1.05rem;
}

@media (max-width: 480px) {
  .rf-chat__panel {
    right: 0;
    left: 0;
    bottom: 0;
    width: 100%;
    height: min(100dvh, 100%);
    padding-bottom: env(safe-area-inset-bottom);
    border: 0;
  }

  .rf-chat.is-open .rf-chat__fab {
    display: none;
  }

  .rf-chat__close {
    display: grid;
    place-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .rf-chat__typing span {
    animation: none;
    opacity: 0.7;
  }
}