:root {
  color-scheme: light dark;
  --bg: #f7f9fb;
  --ink: #132022;
  --muted: #667176;
  --panel: #ffffff;
  --line: #d7e0e3;
  --accent: #0b7a75;
  --accent-2: #315bff;
  --danger: #b4232e;
  --bubble-in: #f3f7f8;
  --bubble-out: #0b7a75;
  --bubble-out-ink: #ffffff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, color-mix(in srgb, var(--accent) 12%, transparent), transparent 34%),
    radial-gradient(circle at bottom right, color-mix(in srgb, var(--accent-2) 10%, transparent), transparent 28%),
    var(--bg);
  position: relative;
  overflow-x: hidden;
}

body.app-booting .shell {
  visibility: hidden;
}

button, input, textarea {
  font: inherit;
}

button {
  min-height: 40px;
  border: 0;
  border-radius: 8px;
  padding: 0 14px;
  color: white;
  background: var(--accent);
  cursor: pointer;
}

button svg {
  width: 1.2em;
  height: 1.2em;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.15;
  stroke-linecap: round;
  stroke-linejoin: round;
}

button.secondary { background: var(--accent-2); }
button.ghost { background: transparent; color: var(--muted); border: 1px solid var(--line); }
button.authLink {
  min-height: 32px;
  padding: 0;
  color: var(--muted);
  background: transparent;
  font-size: 13px;
}
button:disabled { opacity: .55; cursor: default; }

button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 58%, transparent);
  outline-offset: 2px;
}

input, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 11px 12px;
  color: var(--ink);
  background: var(--panel);
  outline-color: var(--accent);
}

.shell {
  display: grid;
  grid-template-columns: 320px 1fr;
  min-height: 100vh;
}

.sidebar {
  border-right: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel) 92%, var(--bg));
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.authLanding {
  display: grid;
  gap: 18px;
  margin: auto;
  width: min(100%, 432px);
}

.brand {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 18px;
  border-bottom: 1px solid var(--line);
}

.brand img { width: 42px; height: 42px; }
.brandCopy {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.brandCopy span { display: block; color: var(--muted); font-size: 13px; }

.sidebar,
.chat {
  min-width: 0;
}

.panel {
  display: grid;
  gap: 10px;
  padding: 14px;
  border-bottom: 1px solid var(--line);
}

#authPanel {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.auth-panel {
  width: 100%;
  margin-inline: auto;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 26px;
  background: color-mix(in srgb, var(--panel) 94%, var(--bg));
  box-shadow: 0 18px 50px rgb(22 32 25 / 9%);
}

.auth-panel > input,
.auth-panel .split,
.auth-panel .humanCheck,
.auth-panel .panelNote {
  width: 100%;
}

.auth-panel .panelNote {
  margin-top: 2px;
}

.auth-panel .split {
  grid-template-columns: 1fr 1fr;
}

#authPanel input,
#authPanel button {
  width: 100%;
}

#authPanel input {
  min-height: 46px;
}

#authPanel button {
  min-height: 46px;
}

.identityButton {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 9px 11px 9px 10px;
  background: color-mix(in srgb, var(--panel) 84%, var(--bg));
  color: var(--ink);
  text-align: left;
  box-shadow: 0 8px 24px rgb(22 32 25 / 8%);
}

.identityButton:hover {
  border-color: color-mix(in srgb, var(--accent) 28%, var(--line));
  transform: translateY(-1px);
}

.identityButton:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.identityAvatar,
.profilePreview {
  flex: none;
  width: 36px;
  height: 36px;
  border-radius: 999px;
  background:
    linear-gradient(135deg, rgb(29 111 86 / 18%), rgb(35 79 122 / 14%)),
    var(--panel);
  border: 1px solid var(--line);
  background-size: cover;
  background-position: center;
}

.identityCopy {
  display: grid;
  gap: 1px;
}

.identityCopy strong {
  display: block;
  font-size: 13px;
  line-height: 1.2;
}

.identityCopy small {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.2;
}

.profile-panel {
  gap: 14px;
}

.profileHeader {
  display: flex;
  align-items: center;
  gap: 12px;
}

.profileHeader strong {
  display: block;
  font-size: 14px;
}

.profileHeader p {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.profilePreview {
  width: 54px;
  height: 54px;
}

.filePicker {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
}

.filePicker input {
  padding: 10px 12px;
  border-radius: 14px;
}

.filePicker input::file-selector-button {
  min-height: 36px;
  margin-right: 10px;
  border: 0;
  border-radius: 999px;
  padding: 0 14px;
  color: white;
  background: var(--accent);
  font: inherit;
  cursor: pointer;
}

.profileActions {
  grid-template-columns: 1fr 1fr;
}

.panelNote {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
}

.humanCheck {
  display: grid;
}

#altchaWidget {
  width: 100%;
}

.split {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
}

.rooms {
  overflow: auto;
  padding: 8px;
}

.room {
  width: 100%;
  display: block;
  min-height: 52px;
  text-align: left;
  color: var(--ink);
  background: transparent;
  border-radius: 8px;
  padding: 10px;
}

.room.active { background: #dfeee8; }
.room small { display: block; color: var(--muted); margin-top: 2px; }

.room em {
  display: inline-block;
  margin-top: 6px;
  padding: 3px 8px;
  border-radius: 999px;
  background: #2f5a8f;
  color: #fff;
  font-style: normal;
  font-size: 11px;
  line-height: 1;
}

.chat {
  display: grid;
  grid-template-rows: auto 1fr auto;
}

.chatHeader {
  min-height: 76px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, auto);
  gap: 16px 20px;
  align-items: start;
  padding: 16px 22px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

.chatMeta {
  min-width: 0;
}

.chatHeader h1 {
  margin: 0;
  font-size: 22px;
  line-height: 1.2;
}

.chatHeader p {
  margin: 4px 0 0;
  color: var(--muted);
}

.voiceBar {
  display: flex;
  gap: 10px;
  justify-self: end;
  align-items: center;
  max-width: 560px;
  min-width: 0;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: color-mix(in srgb, var(--panel) 92%, transparent);
}

.voiceSummary {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
  min-width: 0;
  max-width: 100%;
  text-align: left;
}

.voiceSummary strong {
  font-size: 14px;
}

.voiceSummary span {
  color: var(--muted);
  font-size: 12px;
}

.voiceActions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: end;
  max-width: 100%;
}

.voiceActions {
  display: none;
}

.voiceIconButton {
  display: inline-grid;
  place-items: center;
  width: 48px;
  min-width: 48px;
  height: 44px;
  min-height: 44px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  color: #fff;
  background: var(--accent);
}

.voiceIconButton svg {
  width: 22px;
  height: 22px;
}

.voiceIconButton.voiceEnd,
.voiceIconButton.voiceMuted {
  background: var(--danger);
}

.voiceIconButton:disabled {
  opacity: 0.52;
  cursor: default;
}

.voiceTimer {
  min-width: 82px;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  font-size: 14px;
  font-weight: 700;
  text-align: center;
}

.incomingCall {
  margin: 10px 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border: 1px solid color-mix(in srgb, var(--accent-2) 42%, var(--line));
  border-radius: 8px;
  background: color-mix(in srgb, var(--accent-2) 10%, var(--panel));
  box-shadow: 0 10px 24px rgb(0 0 0 / 10%);
}

.incomingCall strong,
.incomingCall span {
  display: block;
}

.incomingCall span {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
}

.incomingCallActions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: end;
}

.audioRack {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  padding: 10px 22px 0;
}

.audioPeer {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 34px;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--muted);
  font-size: 12px;
}

.audioPeer.active {
  color: var(--ink);
  background: #e6f4ef;
}

.audioPeer strong {
  color: inherit;
  font-size: 12px;
}

.messages {
  overflow: auto;
  padding: 18px 22px;
}

.message {
  display: grid;
  gap: 5px;
  max-width: min(680px, 86%);
  margin: 0 0 10px;
  padding: 10px 12px;
  border-radius: 8px;
  background: var(--panel);
  border: 1px solid var(--line);
  overflow-wrap: anywhere;
  position: relative;
}

.message.mine {
  margin-left: auto;
  background: #e6f4ef;
}

.callLog {
  align-self: center;
  max-width: min(520px, 90%);
  margin: 6px auto 12px;
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: color-mix(in srgb, var(--panel) 80%, var(--bg));
  font-size: 12px;
  text-align: center;
}

.message strong {
  display: block;
  font-size: 12px;
  color: var(--muted);
}

.messageBody {
  display: grid;
  gap: 8px;
}

.messageText {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.messageImage {
  display: grid;
  gap: 6px;
  margin: 0;
}

.messageImage img {
  display: block;
  max-width: min(360px, 100%);
  max-height: 340px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--bg);
  object-fit: cover;
}

.messageImage figcaption {
  color: var(--muted);
  font-size: 11px;
}

.messageMeta {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 14px;
  color: var(--muted);
  font-size: 11px;
}

.message.mine .messageMeta {
  justify-content: flex-end;
}

.messageReactions {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 4px;
}

.reactionPill {
  min-height: 28px;
  padding: 0 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  background: color-mix(in srgb, var(--panel) 86%, var(--bg));
  font-size: 13px;
  line-height: 1;
}

.reactionPill.mine {
  border-color: color-mix(in srgb, var(--accent) 62%, var(--line));
  background: color-mix(in srgb, var(--accent) 14%, var(--panel));
}

.messageReactBtn {
  min-height: 24px;
  padding: 0 7px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: transparent;
  font-size: 12px;
  line-height: 1;
}

.reactionPicker {
  position: absolute;
  right: 10px;
  bottom: 34px;
  display: flex;
  gap: 4px;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
  box-shadow: 0 12px 30px rgb(0 0 0 / 18%);
  z-index: 5;
}

.message:not(.mine) .reactionPicker {
  left: 10px;
  right: auto;
}

.reactionChoice {
  width: 34px;
  min-width: 34px;
  min-height: 34px;
  padding: 0;
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
  color: var(--ink);
  background: transparent;
  font-size: 19px;
}

.reactionChoice:hover,
.messageReactBtn:hover,
.reactionPill:hover {
  background: color-mix(in srgb, var(--accent) 10%, transparent);
}

.messageReceipt {
  display: inline-flex;
  align-items: center;
  gap: 1px;
  line-height: 1;
}

.receiptIcon {
  display: inline-block;
  font-size: 10px;
  line-height: 1;
  color: color-mix(in srgb, var(--muted) 72%, transparent);
  opacity: 0.55;
}

.receiptIcon.active {
  color: var(--accent);
  opacity: 1;
}

.composer {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 10px;
  position: relative;
  padding: 14px;
  border-top: 1px solid var(--line);
  background: var(--panel);
}

.attachmentPreview {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: color-mix(in srgb, var(--panel) 88%, var(--bg));
  color: var(--muted);
  font-size: 12px;
}

.attachmentPreview img {
  width: 42px;
  height: 42px;
  object-fit: cover;
  border-radius: 10px;
  border: 1px solid var(--line);
  flex: none;
}

.attachmentPreview strong {
  display: block;
  color: var(--ink);
  font-size: 12px;
}

.attachmentPreview span {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.composerTools {
  display: flex;
  gap: 8px;
  align-items: end;
}

.attachBtn {
  width: 40px;
  min-width: 40px;
  height: 44px;
  min-height: 44px;
  padding: 0;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  line-height: 1;
}

.iconButton {
  width: 40px;
  min-width: 40px;
  height: 44px;
  min-height: 44px;
  padding: 0;
  display: inline-grid;
  place-items: center;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-weight: 700;
}

.emojiPicker {
  position: absolute;
  left: 14px;
  bottom: calc(100% + 8px);
  width: min(420px, calc(100vw - 28px));
  max-height: 260px;
  overflow: auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(38px, 1fr));
  gap: 4px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 14px 38px rgb(0 0 0 / 18%);
  z-index: 4;
}

.emojiChoice {
  min-height: 38px;
  padding: 0;
  border-radius: 6px;
  color: var(--ink);
  background: transparent;
  font-size: 22px;
}

.emojiChoice:hover,
.iconButton:hover {
  background: color-mix(in srgb, var(--accent) 10%, transparent);
}

.composer textarea {
  resize: none;
  min-height: 44px;
  max-height: 140px;
}

.hidden { display: none !important; }

body:not(.signed-in) .shell {
  grid-template-columns: minmax(0, 460px);
  justify-content: center;
  align-items: center;
  padding: 24px;
}

body:not(.signed-in) .sidebar {
  width: 100%;
  min-height: auto;
  border-right: 0;
  border: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
  border-radius: 28px;
  background:
    linear-gradient(
      180deg,
      color-mix(in srgb, var(--panel) 92%, transparent),
      color-mix(in srgb, var(--panel) 74%, transparent)
    );
  backdrop-filter: blur(18px);
  box-shadow: 0 30px 80px color-mix(in srgb, var(--ink) 12%, transparent);
  overflow: hidden;
  padding: 20px;
}

body:not(.signed-in) #roomPanel,
body:not(.signed-in) #rooms {
  display: none;
}

body:not(.signed-in) .authLanding {
  gap: 16px;
  width: min(100%, 392px);
}

body.signed-in .authLanding {
  flex: none;
  margin: 0;
  width: 100%;
}

body.signed-in .sidebar {
  justify-content: flex-start;
  height: 100dvh;
  min-height: 0;
  overflow: hidden;
}

body.signed-in {
  height: 100dvh;
  overflow: hidden;
}

body.signed-in .shell {
  height: 100dvh;
  min-height: 0;
  overflow: hidden;
}

body:not(.signed-in) .brand {
  padding: 10px 8px 0;
  border-bottom: 0;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 10px;
}

body:not(.signed-in) .brand img {
  width: 58px;
  height: 58px;
}

body:not(.signed-in) .brandCopy {
  justify-items: center;
}

body:not(.signed-in) .brandCopy span {
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
}

body:not(.signed-in) .panel {
  border-bottom: 0;
}

body:not(.signed-in) #authPanel {
  padding: 0;
  align-items: stretch;
}

body:not(.signed-in) .auth-panel {
  padding: 24px;
  width: 100%;
  border-radius: 22px;
}

body:not(.signed-in) .auth-panel .split {
  grid-template-columns: 1fr;
}

body:not(.signed-in) .auth-panel .split button {
  min-width: 0;
}

body:not(.signed-in) #authPanel input,
body:not(.signed-in) #authPanel button {
  min-height: 48px;
}

body:not(.signed-in) .auth-panel .panelNote {
  text-align: center;
}

body:not(.signed-in) .auth-panel .humanCheck {
  margin-inline: auto;
  width: 100%;
}

body:not(.signed-in) .identityButton,
body:not(.signed-in) #profilePanel {
  display: none;
}

body:not(.signed-in) .chat {
  display: none;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(82px + env(safe-area-inset-bottom));
  transform: translateX(-50%);
  pointer-events: none;
  background: #162019;
  color: white;
  padding: 10px 14px;
  border-radius: 8px;
  box-shadow: 0 10px 30px rgb(0 0 0 / 20%);
}

.emptyState {
  display: grid;
  gap: 8px;
  padding: 26px 14px;
  color: var(--muted);
}

.emptyState strong {
  color: var(--ink);
  font-size: 18px;
}

.chatEmpty {
  width: min(420px, 100%);
  margin: auto;
  text-align: center;
}

.modal {
  width: min(520px, calc(100vw - 28px));
  max-height: min(740px, calc(100dvh - 28px));
  margin: auto;
  padding: 0;
  border: 0;
  color: var(--ink);
  background: transparent;
}

.modal::backdrop {
  background: rgb(13 17 16 / 38%);
  backdrop-filter: blur(8px);
}

.modalSurface {
  display: grid;
  gap: 16px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: color-mix(in srgb, var(--panel) 94%, var(--bg));
  box-shadow: 0 30px 90px rgb(0 0 0 / 22%);
}

.modalHeader {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.modalHeader strong {
  display: block;
  font-size: 20px;
  line-height: 1.15;
}

.modalHeader span,
.modalHeader p {
  display: block;
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.fieldGroup {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
}

.modalActions {
  display: flex;
  justify-content: flex-end;
}

.modalActions button {
  min-width: 140px;
}

.modalDivider {
  height: 1px;
  background: var(--line);
}

.requestList {
  display: grid;
  gap: 8px;
}

.requestItem {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: color-mix(in srgb, var(--panel) 86%, var(--bg));
}

.requestItem div {
  display: grid;
  gap: 2px;
}

.requestItem strong {
  color: var(--ink);
}

.requestItem span {
  color: var(--muted);
  font-size: 13px;
}

.requestItem button {
  min-width: 86px;
}

#directChatStatus {
  min-height: 18px;
}

#directChatStatus[data-kind="success"] {
  color: var(--accent);
}

#directChatStatus[data-kind="error"] {
  color: var(--danger);
}

@media (max-width: 760px) {
  .shell { grid-template-columns: 1fr; grid-template-rows: auto 1fr; }
  .sidebar { max-height: 42vh; border-right: 0; border-bottom: 1px solid var(--line); }
  body:not(.signed-in) .shell { grid-template-columns: 1fr; grid-template-rows: 1fr; padding: 12px; }
  body:not(.signed-in) .sidebar { max-height: none; border-bottom: 0; border-radius: 24px; }
  body:not(.signed-in) .brand { padding: 24px 20px 8px; }
  body:not(.signed-in) #authPanel { padding: 14px 16px 22px; }
  body:not(.signed-in) .auth-panel { padding: 20px; }
  .identityButton { margin-left: 0; }
  .profileActions { grid-template-columns: 1fr; }
  .brand { padding: 12px 14px; }
  .panel { padding: 10px; }
  .chatHeader { grid-template-columns: 1fr; justify-items: start; padding: 13px 14px; min-height: 66px; }
  .chatHeader h1 { font-size: 18px; }
  .chatHeader p { font-size: 13px; }
  .voiceBar { justify-self: stretch; align-items: center; width: 100%; max-width: 100%; }
  .voiceSummary { text-align: left; }
  .voiceActions { justify-content: start; }
  .incomingCall {
    margin: 10px 14px 0;
    align-items: flex-start;
    flex-direction: column;
  }
  .incomingCallActions { justify-content: start; }
  .audioRack { padding: 10px 14px 0; }
  .messages { padding: 12px; }
  .message { max-width: 94%; }
  .composer {
    grid-template-columns: auto 1fr;
    gap: 8px;
    padding: 10px;
  }
  .composerTools { grid-column: 1; }
  .composer textarea { grid-column: 2; }
  .composer #sendBtn { grid-column: 1 / -1; }
  .attachBtn,
  .iconButton {
    width: 36px;
    min-width: 36px;
    border-radius: 9px;
  }
  .emojiPicker {
    left: 10px;
    width: calc(100vw - 20px);
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1110;
    --ink: #eef6f2;
    --muted: #9aa7a2;
    --panel: #151a19;
    --line: #2d3935;
    --accent: #4dd6b7;
    --accent-2: #8fb3ff;
    --danger: #ff6b7a;
    --bubble-in: #1d2422;
    --bubble-out: #143c36;
    --bubble-out-ink: #eef6f2;
  }
  .room.active, .message.mine { background: #20332f; }
}

html[data-theme="light"] {
  color-scheme: light;
  --bg: #f7f9fb;
  --ink: #132022;
  --muted: #667176;
  --panel: #ffffff;
  --line: #d7e0e3;
  --accent: #0b7a75;
  --accent-2: #315bff;
  --danger: #b4232e;
  --bubble-in: #f3f7f8;
  --bubble-out: #0b7a75;
  --bubble-out-ink: #ffffff;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0d1110;
  --ink: #eef6f2;
  --muted: #9aa7a2;
  --panel: #151a19;
  --line: #2d3935;
  --accent: #4dd6b7;
  --accent-2: #8fb3ff;
  --danger: #ff6b7a;
  --bubble-in: #1d2422;
  --bubble-out: #143c36;
  --bubble-out-ink: #eef6f2;
}

@media (prefers-color-scheme: dark) {
  html[data-theme="system"] {
    --bg: #0d1110;
    --ink: #eef6f2;
    --muted: #9aa7a2;
    --panel: #151a19;
    --line: #2d3935;
    --accent: #4dd6b7;
    --accent-2: #8fb3ff;
    --danger: #ff6b7a;
    --bubble-in: #1d2422;
    --bubble-out: #143c36;
    --bubble-out-ink: #eef6f2;
  }
}

@media (prefers-color-scheme: light) {
  html[data-theme="system"] {
    --bg: #f7f9fb;
    --ink: #132022;
    --muted: #667176;
    --panel: #ffffff;
    --line: #d7e0e3;
    --accent: #0b7a75;
    --accent-2: #315bff;
    --danger: #b4232e;
    --bubble-in: #f3f7f8;
    --bubble-out: #0b7a75;
    --bubble-out-ink: #ffffff;
  }
}

body.signed-in #profilePanel {
  margin: 0;
  border: 0;
  background: color-mix(in srgb, var(--panel) 94%, var(--bg));
}

body.signed-in #roomPanel {
  display: flex;
  gap: 10px;
  margin: 0 22px 12px;
  padding: 0;
  border: 0;
  background: transparent;
}

body.signed-in #roomPanel button {
  flex: 1;
  min-height: 48px;
  border-radius: 999px;
  border: 0;
  box-shadow: none;
  outline-offset: -5px;
}

.iconOnly {
  display: inline-grid;
  place-items: center;
}

.iconOnly svg,
.attachBtn svg,
.iconButton svg {
  width: 22px;
  height: 22px;
}

.attachBtn,
.iconButton {
  width: 44px;
  min-width: 44px;
  height: 44px;
  min-height: 44px;
}

#sendBtn {
  position: relative;
  display: inline-grid;
  place-items: center;
  color: white;
}

#sendBtn span {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

#sendBtn svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
  stroke: currentColor;
}

#sendBtn::before {
  content: none;
}

body {
  background: var(--bg);
}

.themePicker {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
}

.themePicker small {
  color: var(--muted);
  line-height: 1.35;
}

.themePicker select,
.themePicker input {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0 10px;
  color: var(--ink);
  background: var(--panel);
}

.keyBackupPanel {
  display: grid;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: color-mix(in srgb, var(--surface-raised) 72%, transparent);
}

.keyBackupPanel strong,
.keyBackupPanel small {
  display: block;
}

.keyBackupPanel small {
  margin-top: 3px;
  color: var(--muted);
  font-size: 13px;
}

.keyBackupPanel small[data-kind="success"] {
  color: var(--success);
}

.keyBackupPanel small[data-kind="error"] {
  color: var(--danger);
}

.keyBackupPanel input {
  width: 100%;
}

.iconOnly {
  width: 44px;
  min-width: 44px;
  height: 44px;
  min-height: 44px;
  padding: 0;
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
  font-size: 24px;
}

body.signed-in .shell {
  display: block;
  min-height: 100dvh;
}

body.signed-in .sidebar,
body.signed-in .chat {
  width: min(100%, 820px);
  min-height: 100dvh;
  margin: 0 auto;
  border: 0;
  background: var(--bg);
}

body.signed-in.view-chat .sidebar,
body.signed-in.view-rooms .chat {
  display: none;
}

body.signed-in.view-rooms .sidebar,
body.signed-in.view-chat .chat {
  display: flex;
  flex-direction: column;
}

body.signed-in .brand {
  flex: none;
  min-height: 76px;
  padding: 18px 22px 12px;
  border-bottom: 0;
  width: 100%;
}

body.signed-in .brand img {
  display: none;
}

body.signed-in .brandCopy strong {
  font-size: 24px;
  line-height: 1.05;
}

body.signed-in .identityButton {
  width: 48px;
  min-width: 48px;
  height: 48px;
  min-height: 48px;
  margin-left: auto;
  padding: 0;
  border: 0;
  border-radius: 999px;
  justify-content: center;
  background: transparent;
  box-shadow: none;
  outline-offset: 2px;
  appearance: none;
}

body.signed-in #profileToggle.identityButton {
  flex: 0 0 48px;
  max-width: 48px;
  overflow: visible;
  border: 0;
  background: transparent;
  box-shadow: none;
}

body.signed-in .identityCopy {
  display: none;
}

body.signed-in .identityAvatar {
  width: 44px;
  height: 44px;
}

body.signed-in #roomPanel {
  flex: none;
  margin: 0 22px 12px;
  border: 0;
  border-radius: 0;
  background: transparent;
}

body.signed-in .rooms {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 4px 14px 26px;
}

body.signed-in .room {
  min-height: 68px;
  border-radius: 16px;
  padding: 12px 14px;
  background: transparent;
}

body.signed-in .room span {
  display: block;
  color: var(--ink);
  font-size: 17px;
  font-weight: 650;
}

body.signed-in .room.active,
body.signed-in .room:hover {
  background: color-mix(in srgb, var(--accent) 11%, transparent);
}

.chat {
  height: 100dvh;
  min-height: 0;
  overflow: hidden;
  grid-template-rows: auto auto auto 1fr auto;
}

.chatHeader {
  flex: none;
  min-height: 110px;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 12px;
  padding: 20px 22px 12px;
  border-bottom: 0;
  background: var(--bg);
}

.chatMeta h1 {
  font-size: 30px;
  font-weight: 750;
}

.chatMeta p {
  max-width: 420px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.25;
}

.chatMeta p[data-kind="warning"] {
  color: var(--danger);
}

.roomDeleteBtn {
  width: 48px;
  height: 48px;
  justify-self: end;
  color: var(--danger);
}

.roomDeleteBtn:hover:not(:disabled),
.roomDeleteBtn:focus-visible {
  border-color: color-mix(in srgb, var(--danger) 48%, var(--line));
  background: color-mix(in srgb, var(--danger) 12%, var(--surface-raised));
}

.voiceBar {
  grid-column: 1 / -1;
  justify-self: stretch;
  align-items: center;
  max-width: none;
  margin-top: 4px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: color-mix(in srgb, var(--panel) 90%, transparent);
}

.voiceSummary {
  text-align: left;
}

.voiceActions {
  justify-content: start;
}

.incomingCall {
  position: fixed;
  left: 50%;
  right: auto;
  top: max(16px, env(safe-area-inset-top));
  z-index: 20;
  width: min(430px, calc(100vw - 28px));
  margin: 0;
  transform: translateX(-50%);
  border-radius: 18px;
  background: color-mix(in srgb, var(--panel) 94%, var(--bg));
}

.audioRack {
  flex: none;
  padding: 0 22px 8px;
}

.messages {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 14px 30px 22px;
  background: var(--bg);
}

.message {
  width: fit-content;
  max-width: min(75%, 520px);
  margin: 0 0 18px;
  padding: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.message.mine {
  margin-left: auto;
  align-items: flex-end;
  background: transparent;
}

.message strong {
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  padding-inline: 2px;
}

.messageBody {
  width: fit-content;
  max-width: 100%;
  padding: 12px 14px;
  border-radius: 19px;
  background: var(--bubble-in);
  color: var(--ink);
}

.message.mine .messageBody {
  background: var(--bubble-out);
  color: var(--bubble-out-ink);
}

.messageText {
  display: block;
  font-size: 17px;
  line-height: 1.28;
}

.messageImage img {
  border-radius: 14px;
  border: 0;
}

.messageMeta {
  width: fit-content;
  justify-content: flex-start;
  padding-inline: 2px;
  color: var(--muted);
  font-size: 12px;
}

.message.mine .messageMeta {
  justify-content: flex-end;
}

.messageReactions {
  width: fit-content;
  max-width: 100%;
  margin-top: -2px;
  padding-inline: 2px;
}

.message.mine .messageReactions {
  justify-content: flex-end;
}

.reactionPill {
  background: color-mix(in srgb, var(--panel) 88%, var(--bg));
  border: 0;
}

.messageReactBtn {
  color: var(--accent);
  border: 0;
  background: transparent;
}

.composer {
  flex: none;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: end;
  padding: 12px 30px calc(12px + env(safe-area-inset-bottom));
  border-top: 1px solid var(--line);
  background: var(--bg);
}

.composerTools {
  align-items: center;
}

.attachBtn,
.iconButton {
  color: var(--accent);
  background: transparent;
  border: 0;
  border-radius: 999px;
  font-size: 22px;
}

.composer textarea {
  min-height: 44px;
  border-radius: 12px;
  background: transparent;
}

#sendBtn {
  width: 54px;
  min-width: 54px;
  height: 54px;
  min-height: 54px;
  padding: 0;
  border-radius: 999px;
  font-size: 0;
}

#sendBtn::before {
  content: none;
}

@media (max-width: 760px) {
  body.signed-in .sidebar,
  body.signed-in .chat {
    width: 100%;
    height: 100dvh;
    min-height: 0;
    max-height: 100dvh;
    overflow: hidden;
  }

  .chatHeader {
    grid-template-columns: auto minmax(0, 1fr) auto auto;
    padding: 18px 20px 10px;
    min-height: 104px;
  }

  .chatHeader h1 {
    font-size: 28px;
  }

  .messages {
    padding: 12px 30px 20px;
  }

  .message {
    max-width: 75%;
  }

  .composer {
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 8px;
    padding: 10px 30px calc(10px + env(safe-area-inset-bottom));
  }

  .composerTools,
  .composer textarea,
  .composer #sendBtn {
    grid-column: auto;
  }
}

@media (min-width: 960px) {
  body.signed-in .shell.shell {
    display: grid;
    grid-template-columns: 360px minmax(0, 1fr);
    height: 100dvh;
    min-height: 0;
    overflow: hidden;
  }

  body.signed-in .sidebar.sidebar,
  body.signed-in .chat.chat,
  body.signed-in.view-chat .sidebar.sidebar,
  body.signed-in.view-rooms .chat.chat,
  body.signed-in.view-rooms .sidebar.sidebar,
  body.signed-in.view-chat .chat.chat {
    display: flex;
  }

  body.signed-in .sidebar.sidebar {
    width: auto;
    height: 100dvh;
    min-height: 0;
    margin: 0;
    overflow: hidden;
    border-right: 1px solid var(--line);
    background: color-mix(in srgb, var(--panel) 72%, var(--bg));
  }

  body.signed-in .chat.chat {
    width: auto;
    min-height: 100dvh;
    margin: 0;
  }

  body.signed-in .brandCopy strong {
    font-size: 24px;
  }

  #roomsBackBtn {
    display: none;
  }

  .chatHeader {
    grid-template-columns: minmax(0, 1fr) auto auto;
    padding-inline: 34px;
  }

  .messages {
    padding-inline: max(34px, calc((100vw - 360px - 820px) / 2));
  }

  .composer {
    padding-inline: max(34px, calc((100vw - 360px - 820px) / 2));
  }

  .toast {
    bottom: 24px;
  }
}

body.signed-in.no-active-room .chatHeader {
  display: none;
}

body.signed-in.no-active-room .messages {
  padding-top: 0;
  padding-bottom: 0;
}

/* Liquid Clarity runtime layer, aligned with design/concept-01-liquid-clarity.html. */
:root {
  --surface-raised: #fdfefe;
  --success: #16784f;
  --orange-accent: #d96c2c;
  --shadow: 0 16px 48px color-mix(in srgb, var(--ink) 12%, transparent);
  --soft-shadow: 0 8px 24px color-mix(in srgb, var(--ink) 9%, transparent);
  --sheet-radius: 24px;
  --control-radius: 8px;
  --bubble-radius: 18px;
}

body {
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent) 8%, transparent), transparent 34%),
    linear-gradient(315deg, color-mix(in srgb, var(--orange-accent) 8%, transparent), transparent 30%),
    var(--bg);
}

button {
  min-height: 44px;
  border-radius: var(--control-radius);
  font-weight: 740;
}

button.secondary {
  background: var(--accent-2);
}

button.ghost,
.iconOnly.ghost {
  color: var(--ink);
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface-raised) 82%, transparent);
}

input,
textarea,
select {
  border-radius: var(--control-radius);
}

.modalSurface,
.auth-panel,
.requestItem,
.attachmentPreview {
  border: 1px solid color-mix(in srgb, var(--line) 88%, transparent);
  background: color-mix(in srgb, var(--panel) 86%, transparent);
  box-shadow: var(--soft-shadow);
  backdrop-filter: blur(22px) saturate(1.18);
}

body.signed-in .sidebar,
body.signed-in .chat {
  background: transparent;
}

body.signed-in .brand {
  align-items: center;
  gap: 14px;
}

body.signed-in .brandCopy strong {
  font-weight: 780;
}

body.signed-in .identityAvatar,
.chatAvatar,
.roomIcon {
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 8px 24px color-mix(in srgb, var(--ink) 9%, transparent);
}

body.signed-in #profileToggle.identityButton {
  width: 52px;
  min-width: 52px;
  height: 52px;
  min-height: 52px;
  flex-basis: 52px;
  max-width: 52px;
}

body.signed-in .identityAvatar {
  width: 48px;
  height: 48px;
}

body.signed-in #roomPanel {
  gap: 12px;
}

body.signed-in #roomPanel button {
  min-height: 56px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--accent) 28%, var(--line));
  background: var(--accent);
  box-shadow: 0 10px 28px color-mix(in srgb, var(--accent) 20%, transparent);
}

body.signed-in #roomPanel button.secondary {
  color: var(--ink);
  background: color-mix(in srgb, var(--surface-raised) 82%, transparent);
  border-color: var(--line);
  box-shadow: var(--soft-shadow);
}

#newRoomOpenBtn::before {
  content: "";
  width: 20px;
  height: 20px;
  flex: none;
  background: currentColor;
  -webkit-mask: linear-gradient(#000 0 0) center/3px 100% no-repeat, linear-gradient(#000 0 0) center/100% 3px no-repeat;
  mask: linear-gradient(#000 0 0) center/3px 100% no-repeat, linear-gradient(#000 0 0) center/100% 3px no-repeat;
}

body.signed-in #roomPanel button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
}

body.signed-in .rooms {
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 4px 14px 26px;
}

body.signed-in .room {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  min-height: 74px;
  padding: 12px;
  border: 1px solid transparent;
  border-radius: var(--sheet-radius);
  background: color-mix(in srgb, var(--panel) 52%, transparent);
}

body.signed-in .room.active,
body.signed-in .room:hover {
  border-color: color-mix(in srgb, var(--accent) 24%, var(--line));
  background: color-mix(in srgb, var(--accent) 10%, var(--panel));
  box-shadow: var(--soft-shadow);
}

.roomIcon {
  width: 42px;
  height: 42px;
  border-radius: 999px;
  display: inline-grid;
  place-items: center;
  color: white;
}

body.signed-in .room .roomIcon {
  color: white;
}

.roomIcon svg {
  width: 21px;
  height: 21px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.15;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.roomCopy {
  display: grid;
  gap: 3px;
  min-width: 0;
}

body.signed-in .room .roomName {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chatHeader {
  background: color-mix(in srgb, var(--panel) 72%, transparent);
  backdrop-filter: blur(22px) saturate(1.16);
}

.chatMeta {
  display: grid;
  gap: 4px;
  align-content: center;
}

.chatAvatar {
  width: 44px;
  height: 44px;
  border-radius: 999px;
  display: inline-grid;
  place-items: center;
  color: white;
  font-size: 15px;
  font-weight: 800;
}

.voiceBar {
  border-radius: var(--sheet-radius);
  background: color-mix(in srgb, var(--panel) 78%, transparent);
  backdrop-filter: blur(18px) saturate(1.14);
  box-shadow: var(--soft-shadow);
}

.voiceIconButton {
  width: 52px;
  min-width: 52px;
  height: 52px;
  min-height: 52px;
  background: var(--accent);
  box-shadow: 0 10px 26px color-mix(in srgb, var(--accent) 24%, transparent);
}

.messages {
  gap: 0;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--panel) 38%, transparent), transparent 38%),
    transparent;
}

.message {
  max-width: min(75%, 560px);
}

.messageBody {
  min-height: 42px;
  display: grid;
  align-items: center;
  border: 1px solid color-mix(in srgb, var(--line) 82%, transparent);
  border-radius: var(--bubble-radius);
  background: var(--panel);
  box-shadow: 0 8px 22px color-mix(in srgb, var(--ink) 7%, transparent);
}

.message.mine .messageBody {
  border-color: color-mix(in srgb, var(--accent) 48%, transparent);
  background: var(--bubble-out);
  box-shadow: 0 10px 26px color-mix(in srgb, var(--accent) 20%, transparent);
}

.messageText {
  font-size: 17px;
  line-height: 1.35;
}

.messageReactions {
  display: flex;
  gap: 6px;
}

.reactionPill {
  min-height: 30px;
  border: 1px solid color-mix(in srgb, var(--line) 76%, transparent);
  background: color-mix(in srgb, var(--surface-raised) 84%, transparent);
  box-shadow: 0 6px 14px color-mix(in srgb, var(--ink) 7%, transparent);
}

.messageReactBtn {
  width: 30px;
  min-width: 30px;
  height: 30px;
  min-height: 30px;
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
}

.messageReactBtn svg {
  width: 18px;
  height: 18px;
}

.reactionPicker,
.emojiPicker {
  border-radius: var(--sheet-radius);
  background: color-mix(in srgb, var(--panel) 82%, transparent);
  backdrop-filter: blur(22px) saturate(1.18);
  box-shadow: var(--shadow);
}

.composer {
  border-top: 1px solid color-mix(in srgb, var(--line) 80%, transparent);
  background: color-mix(in srgb, var(--panel) 72%, transparent);
  backdrop-filter: blur(22px) saturate(1.16);
}

.composer textarea {
  border-color: var(--line);
  background: var(--panel);
}

.attachBtn,
.iconButton {
  color: var(--ink);
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface-raised) 82%, transparent);
}

#sendBtn {
  background: var(--accent);
  box-shadow: 0 10px 26px color-mix(in srgb, var(--accent) 24%, transparent);
}

.emptyState {
  border-radius: var(--sheet-radius);
}

@media (min-width: 960px) {
  body.signed-in .shell.shell {
    grid-template-columns: 380px minmax(0, 1fr);
    gap: 0;
  }

  body.signed-in .sidebar.sidebar {
    border-right: 1px solid color-mix(in srgb, var(--line) 84%, transparent);
    background: color-mix(in srgb, var(--panel) 54%, transparent);
    backdrop-filter: blur(22px) saturate(1.16);
  }

  body.signed-in .chat.chat {
    background: transparent;
  }

  .chatHeader {
    grid-template-columns: 44px minmax(0, 1fr) auto auto;
  }
}

@media (max-width: 760px) {
  body.signed-in .brand {
    padding: 18px 22px 12px;
  }

  .chatHeader {
    grid-template-columns: auto 44px minmax(0, 1fr) auto;
    align-items: center;
    gap: 12px;
    min-height: 88px;
  }

  .chatHeader h1 {
    font-size: 26px;
    line-height: 1.12;
  }

  .chatMeta p {
    font-size: 15px;
  }

  .voiceBar {
    grid-column: 1 / -1;
    margin-top: 8px;
  }

  .messages {
    padding-inline: 22px;
  }

  .composer {
    padding-inline: 18px;
  }
}