.chat {
  margin-top: clamp(56px, 8vh, 96px);
  font-family: var(--font-meta);
}



.chat__label,
.chat__who,
.chat__status,
.chat__sr {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}





.chat__stage,
.chat__lang,
.chat__log,
.chat__form {
  display: none;
}


.chat[data-state="invite"] .chat__stage,
.chat[data-state="lang"] .chat__stage,
.chat[data-state="voice"] .chat__stage {
  display: flex;
}

.chat[data-state="text"] .chat__lang {
  display: flex;
}

.chat[data-state="text"] .chat__log {
  display: block;
}

.chat[data-state="text"] .chat__form {
  display: grid;
}


.chat[data-state="voice"] .chat__ask {
  display: block;
}


.chat:not([data-state="text"]) .chat__form,
.chat:not([data-state="text"]) .chat__log,
.chat:not([data-state="text"]) .chat__lang {
  display: none !important;
}


.chat__form[hidden],
.chat__ask[hidden],
.chat__stage-alt[hidden] {
  display: none !important;
}


.chat__stage-alt {
  display: none;
}

.chat[data-state="voice"] .chat__stage-alt[data-state-alt="voice"] {
  display: flex;
}


.chat__fineprint {
  display: none;
}

.chat[data-state="invite"] .chat__fineprint,
.chat[data-state="lang"] .chat__fineprint {
  display: block;
}

.chat__stage {
  flex-direction: column;
  align-items: center;
  padding: clamp(24px, 5vh, 56px) 0;
}




.chat__seals {
  display: grid;
  place-items: center;
  
  --split: clamp(104px, 14vw, 152px);
}

.chat__seals > * {
  grid-area: 1 / 1;
}

.chat__seal {
  position: relative;
  width: clamp(184px, 26vw, 248px);
  aspect-ratio: 1;
  border: 1px solid var(--ink-dark);
  border-radius: 50%;
  background: transparent;
  color: var(--ink-dark);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: transform 0.55s var(--ease), opacity 0.35s var(--ease),
    background 0.4s var(--ease), color 0.4s var(--ease);
}

.chat__seal:hover {
  background: var(--ink-dark);
  color: var(--paper-warm);
}

.chat__seal:focus-visible {
  outline: 1px solid var(--ink-dark);
  outline-offset: 6px;
}

.chat__seal:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.chat__seal-label {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(23px, 2.8vw, 30px);
  line-height: 1.25;
  letter-spacing: -0.02em;
  text-align: center;
}

.chat__seal-label em {
  font-style: italic;
  font-weight: 400;
}



.chat__seal[data-chat-seal]::after {
  content: "";
  position: absolute;
  inset: -1px;
  border: 1px solid var(--ink-dark);
  border-radius: 50%;
  pointer-events: none;
}

.chat[data-state="invite"] .chat__seal[data-chat-seal]::after {
  animation: chat-seal 2.8s var(--ease) infinite;
}

@keyframes chat-seal {
  0% {
    transform: scale(1);
    opacity: 0.5;
  }
  70%,
  100% {
    transform: scale(1.22);
    opacity: 0;
  }
}

.chat[data-state="voice"] .chat__seal[data-chat-seal]::after {
  transform: scale(calc(1 + var(--level, 0) * 0.34));
  opacity: calc(0.15 + var(--level, 0) * 0.75);
  transition: transform 90ms linear, opacity 90ms linear;
}


.chat[data-state="voice"] .chat__seal[data-chat-seal]::before {
  content: "";
  position: absolute;
  inset: 9px;
  border: 1px solid var(--ink-mute);
  border-radius: 50%;
  opacity: calc(0.1 + var(--level, 0) * 0.45);
  transform: scale(calc(1 - var(--level, 0) * 0.06));
  transition: transform 90ms linear, opacity 90ms linear;
  pointer-events: none;
}


.chat[data-state="voice"] .chat__seal-label {
  font-family: var(--font-meta);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--ink-mute);
}



.chat__seal--lang {
  width: clamp(132px, 17vw, 168px);
  opacity: 0;
  transform: scale(0.6);
  pointer-events: none;
}

.chat[data-state="lang"] .chat__seal[data-chat-seal] {
  opacity: 0;
  transform: scale(0.72);
  pointer-events: none;
}

.chat[data-state="lang"] .chat__seal--lang {
  opacity: 1;
  pointer-events: auto;
}

.chat[data-state="lang"] .chat__seal--pl {
  transform: translateX(calc(-1 * var(--split)));
}

.chat[data-state="lang"] .chat__seal--en {
  transform: translateX(var(--split));
}


.chat__seal-code {
  font-family: var(--font-meta);
  font-size: 17px;
  font-weight: 500;
  letter-spacing: 0.18em;
}



.chat__stage-alt {
  flex-direction: column;
  align-items: center;
  gap: 18px;
  margin-top: clamp(26px, 4.5vh, 52px);
  text-align: center;
}

.chat__stage-hint {
  font-family: var(--font-meta);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--ink-mute);
}



.chat__fineprint {
  max-width: 46ch;
  margin-top: clamp(22px, 3.5vh, 34px);
  font-family: var(--font-meta);
  font-size: 10.5px;
  line-height: 1.7;
  letter-spacing: 0.03em;
  color: var(--ink-mute);
  text-align: center;
  text-wrap: balance;
}

.chat__fineprint a {
  color: var(--ink-mute);
  text-decoration: none;
  border-bottom: 1px solid rgba(22, 20, 18, 0.24);
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease);
}

.chat__fineprint a:hover {
  color: var(--ink-dark);
  border-color: var(--ink-dark);
}

.chat__fineprint a:focus-visible {
  outline: 1px solid var(--ink-dark);
  outline-offset: 3px;
}

.chat__stage-action {
  border: 1px solid var(--ink-dark);
  background: transparent;
  padding: 12px 24px;
  color: var(--ink-dark);
  font-family: var(--font-meta);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: background 0.3s var(--ease), color 0.3s var(--ease);
}

.chat__stage-action:hover {
  background: var(--ink-dark);
  color: var(--paper-warm);
}

.chat__stage-action:focus-visible {
  outline: 1px solid var(--ink-dark);
  outline-offset: 4px;
}

@media (prefers-reduced-motion: reduce) {
  .chat__seal,
  .chat__stage-action {
    transition: none;
  }

  .chat__seal[data-chat-seal]::after {
    animation: none;
    opacity: 0.25;
  }
}



.chat__lang {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  margin-bottom: 18px;
}

.chat__lang-item {
  border: 0;
  background: transparent;
  padding: 0 0 3px;
  border-bottom: 1px solid transparent;
  color: var(--ink-mute);
  font-family: var(--font-meta);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.18em;
  line-height: 1;
  cursor: pointer;
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease);
}

.chat__lang-item:hover {
  color: var(--ink-dark);
}

.chat__lang-item:focus-visible {
  outline: 1px solid var(--ink-dark);
  outline-offset: 4px;
}

.chat__lang-item[aria-pressed="true"] {
  color: var(--ink-dark);
  border-bottom-color: currentColor;
  cursor: default;
}

.chat__lang-sep {
  width: 1px;
  height: 9px;
  background: var(--ink-mute);
  opacity: 0.35;
}

@media (prefers-reduced-motion: reduce) {
  .chat__lang-item {
    transition: none;
  }
}



.chat__log {
  list-style: none;
  margin: 0 -16px 0 0;
  padding: 0 16px 0 0;
  height: 340px;
  overflow-y: auto;
  overscroll-behavior: contain;
  scroll-behavior: auto;
}



.chat__log {
  scrollbar-width: thin;
  scrollbar-color: var(--ink-mute) transparent;
}

.chat__log::-webkit-scrollbar {
  width: 9px;
}

.chat__log::-webkit-scrollbar-track {
  background: transparent;
  box-shadow: inset 1px 0 0 var(--line);
}

.chat__log::-webkit-scrollbar-thumb {
  background: var(--ink-mute);
  border-left: 3px solid transparent;
  border-right: 3px solid transparent;
  background-clip: padding-box;
}

.chat__log::-webkit-scrollbar-thumb:hover {
  background: var(--ink-dark);
  background-clip: padding-box;
}


.chat__log::-webkit-scrollbar-button {
  display: none;
  height: 0;
  width: 0;
}

.chat__turn + .chat__turn {
  margin-top: clamp(26px, 3.6vh, 42px);
}

.chat__text {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--ink-dark);
  white-space: pre-wrap;   
  overflow-wrap: anywhere; 
}



.chat__turn[data-who="assistant"] {
  max-width: 48ch;
  margin-right: auto;
}

.chat__turn[data-who="assistant"] .chat__text {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 17px;
  line-height: 1.5;
  letter-spacing: -0.008em;
}



.chat__turn[data-who="you"] {
  max-width: 42ch;
  margin-left: auto;
  text-align: right;
}



.chat__turn[data-who="error"] {
  max-width: 52ch;
  margin-right: auto;
}

.chat__turn[data-who="error"] .chat__text {
  color: var(--ink-mute);
}



.chat__caret {
  display: inline-block;
  width: 1px;
  height: 1.05em;
  margin-left: 3px;
  vertical-align: -0.15em;
  background: var(--ink-dark);
  animation: chat-caret 1s steps(1) infinite;
}

@keyframes chat-caret {
  0%,
  50% {
    opacity: 1;
  }
  50.01%,
  100% {
    opacity: 0;
  }
}



.chat__pending {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 25px; 
}

.chat__pending i {
  width: 4px;
  height: 4px;
  background: var(--ink-mute);
  animation: chat-pulse 1.3s var(--ease) infinite;
}

.chat__pending i:nth-child(2) {
  animation-delay: 0.16s;
}

.chat__pending i:nth-child(3) {
  animation-delay: 0.32s;
}

@keyframes chat-pulse {
  0%,
  100% {
    opacity: 0.22;
  }
  50% {
    opacity: 1;
  }
}



.chat__form {
  margin-top: clamp(32px, 5vh, 56px);
  display: grid;
  
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 16px;
  padding-bottom: 13px;
  border-bottom: 1px solid var(--line);
  transition: border-color 0.3s var(--ease);
}

.chat__form:hover {
  border-bottom-color: var(--ink-mute);
}


.chat__form:focus-within {
  border-bottom-color: var(--ink-dark);
}

.chat__rule {
  width: 24px;
  height: 1px;
  background: var(--ink-dark);
  opacity: 0.45;
}

.chat__input {
  width: 100%;
  min-height: 26px;
  max-height: 160px;
  padding: 0;
  resize: none;
  border: 0;
  background: transparent;
  color: var(--ink-dark);
  font-family: var(--font-meta);
  font-size: 14px;
  line-height: 1.6;
  letter-spacing: 0.005em;
}


.chat__input::placeholder {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 300;
  font-size: 16px;
  color: var(--ink-mute);
  opacity: 0.85;
}

.chat__input:focus {
  outline: none;
}



.chat__talk {
  border: 0;
  background: transparent;
  padding: 0 0 3px;
  color: var(--ink-mute);
  font-family: var(--font-meta);
  font-size: 12px;
  letter-spacing: 0.08em;
  border-bottom: 1px solid transparent;
  cursor: pointer;
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease);
}

.chat__talk:hover {
  color: var(--ink-dark);
  border-bottom-color: var(--line);
}

.chat__talk:focus-visible {
  outline: 1px solid var(--ink-dark);
  outline-offset: 4px;
}


.chat__talk[aria-pressed="true"] {
  color: var(--ink-dark);
  border-bottom-color: var(--ink-dark);
}

.chat__talk:disabled {
  color: var(--ink-mute);
  opacity: 0.5;
  cursor: not-allowed;
}

.chat__send {
  border: 0;
  background: transparent;
  padding: 0 0 3px;
  color: var(--ink-dark);
  font-family: var(--font-meta);
  font-size: 12px;
  letter-spacing: 0.08em;
  border-bottom: 1px solid var(--ink-dark);
  cursor: pointer;
  transition: opacity 0.3s var(--ease);
}

.chat__send:hover {
  opacity: 0.65;
}

.chat__send:focus-visible {
  outline: 1px solid var(--ink-dark);
  outline-offset: 4px;
}

.chat__send:disabled {
  color: var(--ink-mute);
  border-bottom-color: var(--line);
  cursor: not-allowed;
}



.chat__ask {
  margin-top: clamp(32px, 5vh, 56px);
}

.chat__ask[hidden] {
  display: none;
}

.chat__ask-text {
  max-width: 52ch;
  margin-bottom: 14px;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: -0.008em;
  color: var(--ink-dark);
}

.chat__ask-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 16px;
  padding-bottom: 13px;
  border-bottom: 1px solid var(--ink-dark);
}


.chat__textask-row {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 16px;
  padding-bottom: 13px;
  border-bottom: 1px solid var(--ink-dark);
}

@media (max-width: 620px) {
  .chat__textask-row {
    
    grid-template-columns: 1fr auto auto;
    gap: 12px;
  }
}


.chat__ask-pick {
  appearance: none;
  -webkit-appearance: none;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  font-family: var(--font-meta);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-dark);
  cursor: pointer;
}

.chat__ask-pick span {
  border-bottom: 1px solid var(--ink-dark);
  padding-bottom: 3px;
  transition: opacity 0.3s var(--ease);
}

.chat__ask-pick:hover span {
  opacity: 0.65;
}


.chat__ask-pick:focus-within span {
  outline: 1px solid var(--ink-dark);
  outline-offset: 4px;
}

.chat__ask-skip {
  border: 0;
  background: transparent;
  padding: 0 0 3px;
  border-bottom: 1px solid transparent;
  color: var(--ink-mute);
  font-family: var(--font-meta);
  font-size: 12px;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease);
}

.chat__ask-skip:hover {
  color: var(--ink-dark);
  border-bottom-color: var(--line);
}

.chat__ask-skip:focus-visible {
  outline: 1px solid var(--ink-dark);
  outline-offset: 4px;
}


.chat__thumb {
  margin-left: auto;
  margin-bottom: 10px;
  max-width: 220px;
  max-height: 160px;
  width: auto;
  object-fit: cover;
  border: 1px solid var(--ink-dark);
}

@media (prefers-reduced-motion: reduce) {
  .chat__ask-pick span,
  .chat__ask-skip {
    transition: none;
  }
}



@media (max-width: 620px) {
  .chat__log {
    height: 260px;
  }

  .chat__turn[data-who="assistant"] .chat__text {
    font-size: 15.5px;
  }

  .chat__turn[data-who="you"] {
    max-width: 34ch;
  }

  
  .chat__rule {
    display: none;
  }

  .chat__form {
    
    grid-template-columns: 1fr auto auto;
    gap: 12px;
  }

  .chat__input::placeholder {
    font-size: 15px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .chat__form,
  .chat__send {
    transition: none;
  }

  .chat__pending i {
    animation: none;
    opacity: 0.5;
  }

  
  .chat__caret {
    animation: none;
  }
}