:root {
  --bg: #f6f5fb;
  --bg-glow-1: #f0e9ff;
  --bg-glow-2: #e5dcff;
  --surface: #ffffff;
  --surface-soft: #f8f6ff;
  --surface-muted: #f1eefc;
  --line: #e2ddf4;
  --text: #271f3d;
  --text-muted: #6f668d;
  --accent: #beafff;
  --accent-strong: #8e79d8;
  --accent-ink: #2f2454;
  --danger: #de6073;
  --shadow: 0 14px 30px rgba(40, 24, 84, 0.12);
  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --pane-chats-width: 22rem;
  --pane-info-width: 19rem;
}

html[data-theme="dark"] {
  --bg: #18171f;
  --bg-glow-1: #27203d;
  --bg-glow-2: #201f2e;
  --surface: #242331;
  --surface-soft: #2b2a3b;
  --surface-muted: #302f44;
  --line: #3f3d58;
  --text: #f5f2ff;
  --text-muted: #bbb5d8;
  --accent: #ae9cf6;
  --accent-strong: #9a83eb;
  --accent-ink: #1d1438;
  --danger: #f47b8e;
  --shadow: 0 12px 26px rgba(9, 8, 12, 0.45);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
}

body {
  font-family: "Manrope", "Noto Sans", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 8% 10%, var(--bg-glow-1) 0, transparent 42%),
    radial-gradient(circle at 88% 88%, var(--bg-glow-2) 0, transparent 40%),
    var(--bg);
  color: var(--text);
  overflow: hidden;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

.app {
  position: relative;
  height: 100vh;
  padding: 0;
  display: grid;
  grid-template-columns: var(--pane-chats-width) minmax(420px, 1fr) var(--pane-info-width);
  gap: 0;
  --mobile-index: 0;
}

.app.chats-compact {
  grid-template-columns: 5.75rem minmax(420px, 1fr) var(--pane-info-width);
}

.app[data-mobile-view="chats"] {
  --mobile-index: 0;
}

.app[data-mobile-view="messages"] {
  --mobile-index: 1;
}

.app[data-mobile-view="info"] {
  --mobile-index: 2;
}

.pane {
  background: var(--surface);
  border: 0;
  border-right: 1px solid var(--line);
  border-radius: 0;
  box-shadow: none;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.pane:last-child {
  border-right: 0;
}

.pane-top {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  min-height: 4rem;
  padding: 0.7rem 0.8rem;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, var(--surface), var(--surface-soft));
}

.pane-body {
  flex: 1;
  min-height: 0;
}

.top-center {
  min-width: 0;
  flex: 1;
}

.top-title {
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.top-subtitle {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.top-search-input {
  width: 100%;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  padding: 0.55rem 0.65rem;
  background: var(--surface);
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.icon-btn,
.primary-btn,
.secondary-btn,
.danger-btn,
.selector-btn {
  border: 1px solid var(--line);
  background: var(--surface-soft);
  color: var(--text);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: 0.2s ease;
}

.icon-btn {
  min-width: 2.15rem;
  height: 2.15rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.98rem;
  line-height: 1;
  padding: 0;
}

.primary-btn,
.secondary-btn,
.danger-btn,
.selector-btn {
  padding: 0.56rem 0.82rem;
  font-weight: 600;
}

.primary-btn {
  background: linear-gradient(180deg, var(--accent), #a58cf6);
  border-color: transparent;
  color: var(--accent-ink);
}

.secondary-btn,
.selector-btn {
  background: var(--surface-muted);
}

.danger-btn {
  color: #fff;
  border-color: transparent;
  background: linear-gradient(180deg, #f07e92, var(--danger));
}

.icon-btn:hover,
.primary-btn:hover,
.secondary-btn:hover,
.selector-btn:hover,
.danger-btn:hover {
  transform: translateY(-1px);
  filter: brightness(1.03);
}

.icon-btn:active,
.primary-btn:active,
.secondary-btn:active,
.selector-btn:active,
.danger-btn:active {
  transform: translateY(0);
}

.auth-overlay {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  background: rgba(17, 12, 29, 0.34);
  backdrop-filter: blur(2px);
}

.auth-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.auth-card {
  width: min(28rem, calc(100vw - 2rem));
  border-radius: 1.4rem;
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  padding: 1.3rem;
}

.auth-card h1 {
  margin: 0;
  font-size: 1.6rem;
}

.auth-subtitle {
  margin-top: 0.3rem;
  margin-bottom: 1rem;
  color: var(--text-muted);
}

.auth-tabs {
  display: flex;
  gap: 0.4rem;
  margin-bottom: 0.8rem;
}

.auth-tab {
  flex: 1;
  padding: 0.52rem;
  border-radius: 0.8rem;
  border: 1px solid var(--line);
  background: var(--surface-soft);
  cursor: pointer;
  font-weight: 600;
}

.auth-tab.is-active {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: transparent;
}

.auth-form {
  display: grid;
  gap: 0.7rem;
}

label {
  display: grid;
  gap: 0.36rem;
  font-size: 0.9rem;
}

input,
textarea,
select {
  width: 100%;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 0.56rem 0.68rem;
}

textarea {
  resize: vertical;
}

input:disabled {
  background: var(--surface-muted);
  color: var(--text-muted);
}

.form-error {
  min-height: 1.1rem;
  margin-top: 0.65rem;
  margin-bottom: 0;
  font-size: 0.86rem;
  color: var(--danger);
}

.chats-pane-body {
  position: relative;
}

.left-panel {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  min-height: 0;
  transform: translateX(-106%);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.34s cubic-bezier(0.25, 0.8, 0.3, 1), opacity 0.22s ease;
}

.left-panel.is-active {
  transform: translateX(0);
  opacity: 1;
  pointer-events: auto;
}

.chat-list,
.entity-list,
.message-list,
.pending-files {
  list-style: none;
  margin: 0;
  padding: 0;
}

.chat-list,
.entity-list {
  overflow: auto;
  min-height: 0;
  padding: 0.5rem;
}

.chat-row,
.entity-row {
  display: grid;
  grid-template-columns: 2.65rem 1fr auto;
  gap: 0.55rem;
  align-items: center;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  margin-bottom: 0.25rem;
}

.chat-row:hover,
.entity-row:hover {
  background: var(--surface-soft);
}

.chat-row.is-selected {
  background: var(--surface-muted);
}

.chat-main,
.entity-main {
  min-width: 0;
}

.chat-name,
.entity-title {
  font-size: 0.92rem;
  font-weight: 700;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}

.chat-preview,
.entity-subtitle {
  margin-top: 0.12rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}

.chat-meta {
  text-align: right;
  min-width: 3.25rem;
  font-size: 0.74rem;
  color: var(--text-muted);
}

.chat-dot {
  display: inline-block;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--accent-strong);
  margin-top: 0.25rem;
}

.app.chats-compact .chat-row {
  grid-template-columns: 1fr;
  justify-items: center;
  padding: 0.48rem 0.35rem;
}

.app.chats-compact .chat-main,
.app.chats-compact .chat-meta {
  display: none;
}

.app.chats-compact .chats-top .top-center {
  display: none;
}

.app.chats-compact .chats-top #left-main-btn,
.app.chats-compact .chats-top #search-open-btn,
.app.chats-compact .chats-top #create-open-btn {
  display: none !important;
}

.app.chats-compact .chats-top .top-actions > :not(#compact-toggle-btn) {
  display: none !important;
}

.app.chats-compact .chats-top .top-actions {
  margin-left: auto;
}

.stack-form {
  overflow: auto;
  min-height: 0;
  padding: 0.95rem;
  display: grid;
  gap: 0.75rem;
}

.stack-form h2 {
  margin: 0;
  font-size: 1.08rem;
}

.avatar-editor {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.inline-radio {
  display: inline-flex;
  align-items: center;
  gap: 0.36rem;
  margin-right: 0.8rem;
}

.inline-radio input {
  width: auto;
}

fieldset {
  margin: 0;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  padding: 0.62rem;
}

legend {
  color: var(--text-muted);
  padding: 0 0.2rem;
}

.search-type-wrap {
  position: relative;
  padding: 0.75rem;
  border-bottom: 1px solid var(--line);
}

.selector-btn {
  width: 100%;
  text-align: left;
}

.dropdown-menu {
  position: absolute;
  z-index: 15;
  top: calc(100% + 0.4rem);
  left: 0;
  width: 100%;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: 0.35rem;
  display: grid;
  gap: 0.2rem;
}

.dropdown-menu button {
  border: none;
  background: transparent;
  text-align: left;
  border-radius: 0.62rem;
  padding: 0.42rem 0.5rem;
  cursor: pointer;
}

.dropdown-menu button:disabled {
  color: var(--text-muted);
  cursor: not-allowed;
}

.dropdown-menu button:not(:disabled):hover {
  background: var(--surface-soft);
}

#search-type-menu {
  left: 0.75rem;
  right: 0.75rem;
  width: auto;
}

#create-menu {
  width: 15.5rem;
  left: auto;
  right: 0.8rem;
}

.messages-top {
  z-index: 6;
}

.messages-head-main {
  min-width: 0;
  flex: 1;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.messages-view {
  position: relative;
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: 0.8rem;
  background: linear-gradient(180deg, var(--surface), var(--surface-soft));
}

.message-list {
  display: flex;
  flex-direction: column;
  gap: 0.56rem;
}

.message-item {
  max-width: min(85%, 44rem);
  width: fit-content;
  margin-right: auto;
}

.message-list.align-own .message-item.is-own {
  margin-left: auto;
  margin-right: 0;
}

.message-bubble {
  border-radius: 1rem;
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 0.55rem 0.72rem;
  white-space: pre-wrap;
  word-wrap: break-word;
  line-height: 1.35;
}

.message-item.is-own .message-bubble {
  background: linear-gradient(180deg, var(--accent), #b4a2f4);
  color: var(--accent-ink);
  border-color: transparent;
}

.message-meta {
  margin-top: 0.22rem;
  font-size: 0.72rem;
  color: var(--text-muted);
}

.message-head {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 0.25rem;
}

.message-author {
  font-size: 0.8rem;
  font-weight: 700;
}

.message-attachments {
  margin-top: 0.34rem;
  display: grid;
  gap: 0.2rem;
}

.message-attachments button {
  border: none;
  background: transparent;
  padding: 0;
  text-align: left;
  color: var(--accent-strong);
  cursor: pointer;
  text-decoration: underline;
}

.composer {
  border-top: 1px solid var(--line);
  background: var(--surface);
  padding: 0.55rem;
}

.pending-files {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 0.5rem;
}

.pending-file {
  border: 1px solid var(--line);
  border-radius: 99px;
  background: var(--surface-soft);
  padding: 0.28rem 0.6rem;
  font-size: 0.78rem;
  cursor: pointer;
}

.composer-row {
  display: flex;
  align-items: stretch;
  gap: 0.4rem;
}

#message-input {
  min-height: 2.55rem;
  height: 2.55rem;
  max-height: 8rem;
  overflow-y: hidden;
  resize: none;
}

.composer-row #send-btn {
  height: 2.55rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding-top: 0;
  padding-bottom: 0;
}

.composer-row .file-btn.icon-btn {
  height: 2.55rem;
  min-width: 2.55rem;
}

.popover {
  position: absolute;
  z-index: 18;
  top: calc(100% + 0.45rem);
  right: 0.6rem;
  width: min(21rem, calc(100vw - 2rem));
  max-height: 21rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}

.popover-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.55rem;
  border-bottom: 1px solid var(--line);
}

.popover .entity-list {
  padding: 0.4rem;
}

.compact .entity-row {
  grid-template-columns: 2.25rem 1fr auto;
}

.info-body {
  padding: 1rem;
  overflow: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.info-body h2 {
  margin-top: 1rem;
  margin-bottom: 0.35rem;
}

.info-body p {
  margin: 0;
  color: var(--text-muted);
}

.empty-state {
  color: var(--text-muted);
  text-align: center;
  padding: 1rem;
}

.avatar {
  position: relative;
  flex: none;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: linear-gradient(140deg, #d8cbff, #b8a3ff);
  color: #2f2454;
  display: grid;
  place-items: center;
  font-weight: 700;
  overflow: hidden;
}

.avatar::after {
  content: attr(data-initials);
}

.avatar.has-image {
  background-size: cover;
  background-position: center;
}

.avatar.has-image::after {
  content: "";
}

.avatar-sm {
  width: 1.6rem;
  height: 1.6rem;
  font-size: 0.62rem;
}

.avatar-md {
  width: 2.2rem;
  height: 2.2rem;
  font-size: 0.78rem;
}

.avatar-xl {
  width: 4.2rem;
  height: 4.2rem;
  font-size: 1.25rem;
}

.avatar-xxl {
  width: 7.4rem;
  height: 7.4rem;
  font-size: 2rem;
}

.file-btn input {
  display: none;
}

.toast-root {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 30;
  display: grid;
  gap: 0.45rem;
}

.toast {
  max-width: 24rem;
  padding: 0.56rem 0.75rem;
  border-radius: 0.74rem;
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow);
  font-size: 0.84rem;
}

.toast.error {
  border-color: var(--danger);
}

.hidden {
  display: none !important;
}

[hidden] {
  display: none !important;
}

@media (max-width: 1120px) {
  .app,
  .app.chats-compact {
    grid-template-columns: var(--pane-chats-width) minmax(320px, 1fr);
  }

  .app.chats-compact {
    grid-template-columns: 5.75rem minmax(320px, 1fr);
  }

  .pane-info {
    position: absolute;
    z-index: 12;
    right: 0;
    top: 0;
    bottom: 0;
    width: min(23rem, 100%);
    border-left: 1px solid var(--line);
    transform: translateX(100%);
    transition: transform 0.34s cubic-bezier(0.25, 0.8, 0.3, 1);
  }

  .app.info-overlay-open .pane-info {
    transform: translateX(0);
  }
}

@media (max-width: 920px) {
  .app,
  .app.chats-compact {
    grid-template-columns: 18.5rem 1fr;
  }

  .app.chats-compact {
    grid-template-columns: 5.75rem 1fr;
  }
}

@media (max-width: 780px) {
  body {
    overflow: hidden;
  }

  .app,
  .app.chats-compact {
    display: block;
    padding: 0;
  }

  .pane,
  .pane-info {
    position: absolute;
    inset: 0;
    width: auto;
    transform: translateX(calc((var(--pane-index) - var(--mobile-index)) * 100%));
    transition: transform 0.36s cubic-bezier(0.25, 0.8, 0.3, 1);
  }

  .pane {
    border-right: 0;
  }

  .pane[data-pane-index="0"] {
    --pane-index: 0;
  }

  .pane[data-pane-index="1"] {
    --pane-index: 1;
  }

  .pane[data-pane-index="2"] {
    --pane-index: 2;
  }

  .pane {
    pointer-events: none;
  }

  .app[data-mobile-view="chats"] .pane-chats,
  .app[data-mobile-view="messages"] .pane-messages,
  .app[data-mobile-view="info"] .pane-info {
    pointer-events: auto;
  }

  #compact-toggle-btn {
    display: none;
  }

  .message-item {
    max-width: 92%;
  }

  #create-menu {
    right: 0.35rem;
  }
}