@font-face {
  font-family: "Inter";
  src: url("/fonts/Inter-300.ttf") format("truetype");
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Inter";
  src: url("/fonts/Inter-400.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Inter";
  src: url("/fonts/Inter-500.ttf") format("truetype");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Inter";
  src: url("/fonts/Inter-700.ttf") format("truetype");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --bg: #f4ecdf;
  --bg-strong: #eadbc4;
  --panel: rgba(255, 250, 242, 0.88);
  --panel-strong: #fff8ee;
  --line: rgba(101, 72, 49, 0.16);
  --ink: #2a211a;
  --muted: #6a5747;
  --accent: #b65b3a;
  --accent-strong: #8f3b1d;
  --accent-soft: rgba(182, 91, 58, 0.12);
  --shadow: 0 20px 60px rgba(95, 65, 41, 0.13);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --mobile-composer-offset: 76px;
  --mobile-browser-chrome-offset: 0px;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  overflow: hidden;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.7), transparent 30%),
    radial-gradient(circle at right, rgba(182, 91, 58, 0.16), transparent 28%),
    linear-gradient(160deg, #f7efe2 0%, #f0e2cc 52%, #ead7bd 100%);
  font-family: "Avenir Next", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

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

button {
  border: 0;
  cursor: pointer;
}

code {
  padding: 0.08rem 0.32rem;
  border-radius: 999px;
  background: rgba(42, 33, 26, 0.08);
}

.app-shell {
  height: 100dvh;
  padding: 24px;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 18px;
  overflow: hidden;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  position: sticky;
  top: 0;
  z-index: 30;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, rgba(255, 251, 246, 0.96), rgba(245, 231, 208, 0.86));
  box-shadow: var(--shadow);
}

.brand-block h1,
.panel-heading h2,
.hero-card h3,
.modal-card h2 {
  margin: 0;
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", "Noto Serif SC", serif;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand-block h1 {
  font-size: clamp(1.75rem, 2vw, 2.4rem);
  line-height: 1;
}

.eyebrow,
.hero-kicker {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

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

.chat-panel-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.primary-button,
.ghost-button {
  padding: 0.8rem 1.1rem;
  border-radius: 999px;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    background 160ms ease;
}

.hidden {
  display: none !important;
}

.primary-button {
  color: #fff9f5;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  box-shadow: 0 10px 24px rgba(143, 59, 29, 0.22);
}

.ghost-button {
  color: var(--ink);
  background: rgba(255, 250, 242, 0.72);
  border: 1px solid var(--line);
}

.primary-button:hover,
.ghost-button:hover {
  transform: translateY(-1px);
}

.workspace {
  display: grid;
  grid-template-columns: clamp(332px, 28vw, 360px) minmax(0, 1fr);
  gap: 18px;
  min-height: 0;
  overflow: hidden;
}

.sidebar,
.chat-panel,
.settings-card,
.modal-card {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.sidebar,
.chat-panel {
  min-height: 0;
  height: 100%;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 20px;
  overflow: hidden;
  border-radius: var(--radius-xl);
}

.chat-panel {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 18px;
  padding: 20px;
  overflow: hidden;
  overflow-x: hidden;
  border-radius: var(--radius-xl);
}

.panel-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  padding: 0.38rem 0.7rem;
  border-radius: 999px;
  font-size: 0.82rem;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.68);
  border: 1px solid var(--line);
}

.pill.accent {
  color: var(--accent-strong);
  background: var(--accent-soft);
}

.hero-card {
  position: relative;
  overflow: hidden;
  padding: 22px 24px;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at top right, rgba(182, 91, 58, 0.2), transparent 24%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.85), rgba(251, 238, 221, 0.92));
  border: 1px solid rgba(182, 91, 58, 0.12);
}

.hero-card p:last-child {
  margin-bottom: 0;
}

.session-list,
.message-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.room-list,
.search-results {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.room-list {
  order: 2;
  margin-top: 0;
  min-height: 0;
  flex: none;
  max-height: min(28vh, 280px);
  overflow-y: auto;
  padding-right: 4px;
}

.session-list {
  order: 4;
  flex: 1 1 auto;
  min-height: 260px;
  overflow-y: auto;
  margin-top: 0;
  padding-right: 4px;
  padding-bottom: 176px;
  scroll-padding-bottom: 176px;
}

.sidebar-search {
  order: 6;
  position: sticky;
  bottom: 0;
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 10px;
  padding-bottom: 10px;
  border-top: 1px solid rgba(101, 72, 49, 0.1);
  background: linear-gradient(180deg, rgba(255, 248, 239, 0), rgba(255, 248, 239, 0.94) 18%, rgba(255, 248, 239, 0.99) 100%);
}

.sidebar-section-head,
.settings-group-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.sidebar-section-head {
  order: 3;
  margin-top: 0;
}

.sidebar-section-head h3,
.settings-group-head h3 {
  margin: 0;
}

.room-chip,
.search-result-item {
  width: 100%;
  text-align: left;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: rgba(255, 252, 247, 0.8);
}

.room-chip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 0.82rem 0.95rem;
}

.room-chip small {
  min-width: 28px;
  text-align: center;
  color: var(--muted);
}

.room-chip.active {
  border-color: rgba(182, 91, 58, 0.4);
  background: linear-gradient(135deg, rgba(255, 245, 240, 0.98), rgba(251, 233, 221, 0.9));
}

.search-results {
  order: 5;
  margin-top: 0;
  flex: none;
  min-height: 0;
  max-height: 132px;
  overflow-y: auto;
}

.sidebar-search .field span,
.sidebar-search .toggle-row {
  font-size: 0.84rem;
}

.sidebar-search input {
  padding: 0.72rem 0.82rem;
}

.search-result-item {
  padding: 12px 14px;
}

.search-result-item strong,
.search-result-item small {
  display: block;
}

.search-result-item p {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.55;
}

.empty-card.compact {
  padding: 14px 16px;
}

.session-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
}

.session-item,
.message-card,
.empty-card,
.settings-group {
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: rgba(255, 252, 247, 0.8);
}

.session-item {
  width: 100%;
  padding: 14px 16px;
  text-align: left;
}

.session-item strong,
.message-card strong {
  display: block;
  margin-bottom: 6px;
}

.session-item small,
.message-card small,
.muted {
  color: var(--muted);
}

.session-item.active {
  border-color: rgba(182, 91, 58, 0.4);
  background: linear-gradient(135deg, rgba(255, 245, 240, 0.98), rgba(251, 233, 221, 0.9));
}

.session-delete {
  flex: none;
  min-width: 40px;
  min-height: 40px;
  padding: 0.45rem 0.7rem;
  border-radius: 12px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid var(--line);
}

.session-delete:hover {
  color: var(--accent-strong);
  background: rgba(255, 240, 234, 0.92);
}

.message-list {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  padding-right: 4px;
  padding-bottom: 4px;
  scrollbar-gutter: stable;
}

.message-card,
.empty-card {
  padding: 18px;
}

.message-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: flex-start;
}

.message-main {
  min-width: 0;
  max-width: 100%;
}

.message-content-stack {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.message-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.message-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  flex: none;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #fffaf4;
  background: linear-gradient(135deg, #ca7451, #8f3b1d);
  box-shadow: 0 10px 22px rgba(143, 59, 29, 0.18);
}

.message-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0 10px;
  opacity: 0;
  transform: translateY(-2px);
  pointer-events: none;
  transition:
    opacity 160ms ease,
    transform 160ms ease;
}

.message-card:hover .message-actions,
.message-card:focus-within .message-actions {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.message-action {
  padding: 0.4rem 0.72rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
  background: rgba(255, 255, 255, 0.72);
}

.message-action:hover {
  color: var(--accent-strong);
  background: rgba(255, 240, 234, 0.92);
}

.message-action.subtle {
  background: rgba(255, 255, 255, 0.58);
}

.message-body {
  margin: 0 0 10px;
  line-height: 1.65;
}

.message-body:last-child {
  margin-bottom: 0;
}

.message-insight {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.insight-toggle {
  align-self: flex-start;
  padding: 0.36rem 0.82rem;
  border-radius: 999px;
  border: 1px dashed transparent;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.62);
  transition:
    background 160ms ease,
    border-color 160ms ease,
    color 160ms ease;
}

.insight-toggle.active,
.insight-toggle:hover {
  color: var(--ink);
}

.thinking-toggle {
  color: #7a5671;
  border-color: rgba(122, 86, 113, 0.34);
  background: rgba(122, 86, 113, 0.08);
}

.summary-toggle {
  color: #8d6035;
  border-color: rgba(141, 96, 53, 0.34);
  background: rgba(182, 91, 58, 0.08);
}

.insight-panel {
  padding: 12px 14px;
  border-left: 3px solid rgba(182, 91, 58, 0.24);
  border-radius: 14px;
  line-height: 1.6;
}

.thinking-panel {
  color: #5e4e58;
  background: rgba(122, 86, 113, 0.08);
  border-left-color: rgba(122, 86, 113, 0.36);
}

.summary-panel {
  background: rgba(182, 91, 58, 0.07);
}

.message-card.assistant {
  background: rgba(255, 247, 237, 0.94);
}

.message-card.flash-target {
  border-color: rgba(182, 91, 58, 0.55);
  box-shadow: 0 0 0 3px rgba(182, 91, 58, 0.12);
}

.message-card.assistant .message-avatar {
  background: linear-gradient(135deg, #c96e49, #8f3b1d);
}

.message-card.user {
  background: rgba(246, 241, 234, 0.94);
}

.message-card.user .message-avatar {
  color: var(--ink);
  background: linear-gradient(135deg, #f1dfc7, #d8b48a);
  box-shadow: 0 10px 22px rgba(115, 88, 64, 0.12);
}

.markdown-body > *:first-child {
  margin-top: 0;
}

.markdown-body > *:last-child {
  margin-bottom: 0;
}

.markdown-body p,
.markdown-body ul,
.markdown-body ol,
.markdown-body blockquote,
.markdown-body pre,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
  margin: 0.7em 0;
}

.markdown-body ul,
.markdown-body ol {
  padding-left: 1.4em;
}

.markdown-body li + li {
  margin-top: 0.28em;
}

.markdown-body a {
  color: var(--accent-strong);
}

.markdown-body blockquote {
  margin-left: 0;
  padding-left: 12px;
  border-left: 3px solid rgba(182, 91, 58, 0.3);
  color: var(--muted);
}

.markdown-body code {
  padding: 0.12rem 0.38rem;
  border-radius: 8px;
  background: rgba(42, 33, 26, 0.08);
  font-size: 0.92em;
}

.markdown-body pre {
  padding: 12px 14px;
  overflow-x: auto;
  border-radius: 14px;
  background: #2b221d;
  color: #f8efe3;
}

.markdown-body pre code {
  display: block;
  padding: 0;
  background: transparent;
  color: inherit;
}

.markdown-body pre code.hljs {
  background: transparent;
}

.composer {
  position: relative;
  bottom: auto;
  z-index: 10;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  min-height: 0;
  gap: 12px;
  padding: 14px;
  padding-bottom: calc(14px + env(safe-area-inset-bottom, 0px));
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: rgba(255, 249, 241, 0.82);
  box-shadow: 0 -10px 28px rgba(108, 78, 55, 0.08);
  backdrop-filter: blur(10px);
}

.composer-main {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.composer-actions {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  flex: none;
  gap: 10px;
}

.composer-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.toolbar-button {
  min-width: 40px;
  min-height: 36px;
  padding: 0.35rem 0.62rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  color: var(--muted);
  background: rgba(255, 255, 255, 0.68);
  transition:
    color 160ms ease,
    background 160ms ease,
    opacity 160ms ease;
}

.toolbar-button:hover:not(:disabled) {
  color: var(--accent-strong);
  background: rgba(255, 240, 234, 0.92);
}

.toolbar-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.attachment-preview {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.attachment-chip {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid rgba(182, 91, 58, 0.18);
  border-radius: 14px;
  background: rgba(255, 245, 237, 0.88);
}

.attachment-chip img {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 10px;
  border: 1px solid rgba(101, 72, 49, 0.12);
}

.attachment-copy {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.attachment-copy strong,
.attachment-copy small {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.attachment-remove {
  padding: 0.45rem 0.72rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
  background: rgba(255, 255, 255, 0.72);
}

.attachment-remove:hover {
  color: var(--accent-strong);
  background: rgba(255, 240, 234, 0.92);
}

.composer textarea {
  width: 100%;
  min-height: 96px;
  max-height: 220px;
  resize: none;
  overflow-y: hidden;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.74);
  color: var(--ink);
  line-height: 1.55;
}

.settings-panel {
  position: fixed;
  inset: 0;
  display: none;
  padding: 24px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  background: rgba(41, 29, 22, 0.18);
  backdrop-filter: blur(10px);
}

.settings-panel.open {
  display: block;
}

.settings-card {
  width: min(760px, 100%);
  max-height: calc(100vh - 48px);
  margin-left: auto;
  padding: 24px;
  overflow: auto;
  border-radius: 32px;
  background: rgba(255, 248, 239, 0.95);
}

.settings-content {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 16px;
  padding-bottom: 12px;
}

.settings-group {
  padding: 18px;
}

.settings-group h3 {
  margin: 0 0 6px;
}

.stack-form,
.inline-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field-head,
.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.field span {
  font-size: 0.92rem;
  color: var(--muted);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 0.85rem 0.95rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.88);
}

.field textarea {
  resize: vertical;
  min-height: 108px;
}

.field .range-input {
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  accent-color: var(--accent);
}

.field-hint {
  color: var(--muted);
  line-height: 1.45;
}

.toggle-row {
  justify-content: flex-start;
  font-size: 0.92rem;
  color: var(--muted);
}

.toggle-row.compact {
  font-size: 0.84rem;
}

.toggle-row input {
  width: auto;
  margin: 0;
  accent-color: var(--accent);
}

.provider-card {
  display: block;
  padding: 16px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.68);
}

.provider-card + .provider-card {
  margin-top: 12px;
}

.provider-head {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
}

.provider-head input {
  margin-top: 4px;
}

.provider-meta {
  margin-top: 8px;
  color: var(--muted);
  word-break: break-all;
}

.notes-stack {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 14px;
}

.note-card {
  padding: 16px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.68);
}

.note-form textarea,
.note-card textarea {
  min-height: 120px;
}

.note-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.button-feedback-success {
  color: #ffffff !important;
  background: linear-gradient(145deg, rgba(109, 177, 137, 0.96), rgba(78, 153, 112, 0.92)) !important;
  border-color: rgba(255, 255, 255, 0.28) !important;
  box-shadow: 0 10px 22px rgba(78, 153, 112, 0.2) !important;
}

.button-feedback-error {
  color: #ffffff !important;
  background: linear-gradient(145deg, rgba(210, 112, 112, 0.96), rgba(184, 84, 84, 0.92)) !important;
  border-color: rgba(255, 255, 255, 0.24) !important;
  box-shadow: 0 10px 22px rgba(184, 84, 84, 0.18) !important;
}

.danger-button {
  color: #8f3b1d;
}

.memory-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 14px;
}

.memory-column {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.56);
}

.memory-column-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.memory-column-head strong {
  display: block;
}

.memory-column-head p {
  margin: 6px 0 0;
}

.memory-editor-form {
  margin-top: 4px;
}

.memory-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.memory-card-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.memory-card {
  padding: 16px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.78);
}

.memory-summary-preview {
  margin: 2px 0 0;
  color: var(--ink);
  line-height: 1.58;
}

.memory-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.memory-card-head strong,
.memory-card-head small {
  display: block;
}

.memory-card-head small {
  margin-top: 4px;
}

.memory-status-badge {
  align-self: flex-start;
  padding: 0.35rem 0.72rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  white-space: nowrap;
}

.memory-status-badge.draft {
  color: #7d5634;
  background: rgba(182, 91, 58, 0.12);
}

.memory-status-badge.promoted,
.memory-status-badge.stored {
  color: #2f6a49;
  background: rgba(78, 153, 112, 0.14);
}

.memory-meta {
  font-size: 0.88rem;
  line-height: 1.5;
  word-break: break-word;
}

.memory-actions {
  flex-wrap: wrap;
}

.memory-details {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 4px;
}

.memory-details > summary {
  cursor: pointer;
  color: var(--accent-strong);
  font-size: 0.92rem;
  user-select: none;
}

.memory-details[open] > summary {
  margin-bottom: 4px;
}

.memory-search-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: end;
  margin-top: 2px;
}

.memory-search-actions,
.memory-pagination {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.memory-library-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

@media (max-width: 900px) {
  .memory-panel {
    grid-template-columns: 1fr;
  }

  .memory-form-grid,
  .memory-search-form {
    grid-template-columns: 1fr;
  }

  .memory-column-head,
  .memory-library-meta {
    flex-direction: column;
    align-items: stretch;
  }
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(42, 33, 26, 0.24);
  backdrop-filter: blur(12px);
}

.modal-backdrop.open {
  display: flex;
}

.modal-card {
  width: min(460px, 100%);
  padding: 28px;
  border-radius: 32px;
  background: var(--panel-strong);
}

.modal-copy {
  color: var(--muted);
}

.session-sidebar-backdrop {
  display: none;
}

.clipboard-fallback {
  position: fixed;
  top: -9999px;
  left: -9999px;
  opacity: 0;
}

.mobile-only {
  display: none;
}

@media (max-width: 900px) {
  .app-shell {
    height: 100dvh;
    padding: 4px;
    gap: 6px;
  }

  .workspace {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .topbar {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    border-radius: 20px;
  }

  .brand-block {
    min-width: 0;
  }

  .brand-block .eyebrow {
    margin-bottom: 1px;
    font-size: 0.58rem;
    letter-spacing: 0.1em;
  }

  .brand-block h1 {
    font-size: 1.05rem;
    line-height: 1.05;
    white-space: nowrap;
  }

  .topbar-actions {
    gap: 5px;
    flex-wrap: nowrap;
  }

  .topbar-actions .primary-button,
  .topbar-actions .ghost-button {
    min-width: 0;
    padding: 0.56rem 0.66rem;
    font-size: 0.82rem;
    white-space: nowrap;
    writing-mode: horizontal-tb;
  }

  .sidebar {
    position: fixed;
    top: 56px;
    left: 4px;
    bottom: 4px;
    width: min(92vw, 380px);
    height: auto;
    z-index: 50;
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 14px;
    overflow-y: auto;
    overscroll-behavior: contain;
    transform: translateX(-108%);
    opacity: 0;
    pointer-events: none;
    transition:
      transform 180ms ease,
      opacity 180ms ease;
  }

  .sidebar.open {
    transform: translateX(0);
    opacity: 1;
    pointer-events: auto;
  }

  .session-sidebar-backdrop {
    position: fixed;
    inset: 0;
    z-index: 45;
    background: rgba(42, 33, 26, 0.18);
    backdrop-filter: blur(8px);
  }

  .session-sidebar-backdrop.open {
    display: block;
  }

  .chat-panel {
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 0;
    gap: 6px;
    padding: 8px;
    padding-bottom: 8px;
    border-radius: 20px;
  }

  .panel-heading {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
    align-items: flex-start;
  }

  .panel-heading .eyebrow {
    margin-bottom: 1px;
    font-size: 0.58rem;
    letter-spacing: 0.1em;
  }

  .panel-heading h2 {
    font-size: 0.92rem;
    line-height: 1.18;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  #status-pill {
    justify-self: flex-start;
    max-width: 100%;
    padding: 0.28rem 0.56rem;
    font-size: 0.68rem;
    line-height: 1.25;
    white-space: normal;
  }

  .hero-card {
    display: none;
  }

  .message-list {
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
    overscroll-behavior-x: none;
    padding-bottom: calc(
      var(--mobile-composer-offset) + var(--mobile-browser-chrome-offset) + 8px
    );
    scroll-padding-bottom: calc(
      var(--mobile-composer-offset) + var(--mobile-browser-chrome-offset) + 8px
    );
  }

  .message-actions {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .composer {
    position: fixed;
    left: 4px;
    right: 4px;
    bottom: calc(8px + env(safe-area-inset-bottom, 0px) + var(--mobile-browser-chrome-offset));
    z-index: 40;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    margin: 0;
    gap: 6px;
    padding: 6px;
    border-radius: 16px;
  }

  .composer-main {
    gap: 6px;
  }

  .composer-toolbar {
    gap: 4px;
  }

  .toolbar-button {
    min-width: 36px;
    min-height: 32px;
    padding: 0.25rem 0.52rem;
    border-radius: 10px;
    font-size: 0.95rem;
  }

  .attachment-chip {
    grid-template-columns: 40px minmax(0, 1fr) auto;
    gap: 8px;
    padding: 8px 10px;
  }

  .attachment-chip img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
  }

  .attachment-remove {
    padding: 0.35rem 0.6rem;
    font-size: 0.78rem;
  }

  .composer textarea {
    min-height: 44px;
    max-height: 96px;
    padding: 8px 10px;
    font-size: 0.94rem;
  }

  .composer-actions {
    flex-direction: column;
    justify-content: flex-end;
    gap: 4px;
  }

  .composer-actions .primary-button,
  .composer-actions .ghost-button {
    min-width: 68px;
    padding: 0.58rem 0.72rem;
    font-size: 0.84rem;
  }

  .message-row {
    gap: 8px;
  }

  .message-avatar {
    width: 28px;
    height: 28px;
    font-size: 0.88rem;
  }

  .message-card,
  .empty-card {
    padding: 10px;
  }

  .message-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
    margin-bottom: 4px;
  }

  .room-list {
    order: 2;
    max-height: min(32vh, 290px);
  }

  .session-list {
    order: 3;
    flex: none;
    min-height: 132px;
    max-height: min(27vh, 260px);
    padding-bottom: 154px;
    scroll-padding-bottom: 154px;
  }

  .sidebar-search {
    order: 5;
    gap: 8px;
    position: sticky;
    bottom: 0;
    margin-top: auto;
    padding-top: 10px;
    padding-bottom: calc(6px + env(safe-area-inset-bottom, 0px));
    background: linear-gradient(180deg, rgba(255, 248, 239, 0), rgba(255, 248, 239, 0.96) 18%, rgba(255, 248, 239, 0.99) 100%);
  }

  .search-results {
    order: 4;
    max-height: 18vh;
  }

  .sidebar-section-head {
    display: none;
  }

  .sidebar .panel-heading {
    display: flex;
    gap: 8px;
  }

  .sidebar .eyebrow {
    margin-bottom: 2px;
    font-size: 0.58rem;
    letter-spacing: 0.1em;
  }

  .room-chip {
    padding: 0.74rem 0.82rem;
  }

  .session-row {
    grid-template-columns: minmax(0, 1fr) 44px;
    gap: 8px;
  }

  .session-item {
    padding: 12px 13px;
  }

  .session-delete {
    min-width: 44px;
    min-height: 44px;
    padding: 0.35rem 0.45rem;
  }

  .sidebar-search .field span,
  .sidebar-search .toggle-row {
    font-size: 0.78rem;
  }

  .sidebar-search input {
    padding: 0.72rem 0.82rem;
    font-size: 0.92rem;
  }

  .message-body {
    font-size: 0.94rem;
    line-height: 1.52;
  }

  .mobile-only {
    display: inline-flex;
  }
}
/* ================================================================
   V1.4 光影玻璃风 (Aura Glassmorphism) Overrides
   ================================================================ */

:root {
  --global-bg: #e1f5fe;
  --global-bg-alpha: rgba(225, 245, 254, 0.42);
  --pool-bubble: rgba(245, 222, 179, 0.34);
  --pool-text: #30424d;
  --echo-bubble: var(--primary-accent);
  --echo-text: #1d4258;
  --font-family: "Inter", system-ui, -apple-system, sans-serif;
  --font-family-hand: "Bradley Hand", "Segoe Print", "Chalkboard SE", "Marker Felt", "Comic Sans MS", cursive;
  --font-size-title: 13px;
  --font-size-body: 12px;
  --font-size-meta: 11px;
  --line-height: 1.5;
  --border-radius: 20px;
  --border-radius-small: 12px;
  --transition: all 0.3s ease-in-out;
  --primary-accent: rgba(225, 245, 254, 0.42);
  --glow-color: rgba(225, 245, 254, 0.34);
  --backdrop-blur: 20px;
  --ink: #22404f;
  --muted: rgba(34, 64, 79, 0.68);
  --line: rgba(255, 255, 255, 0.3);
  --accent: #4f86a8;
  --accent-strong: #295975;
  --accent-soft: rgba(79, 134, 168, 0.12);
  --panel: rgba(255, 255, 255, 0.2);
  --panel-strong: rgba(255, 255, 255, 0.26);
  --shadow: 0 24px 60px rgba(92, 132, 160, 0.16);
  --room-bg-start: #f1fbff;
  --room-bg-end: #d6eefb;
  --room-wash: rgba(168, 217, 243, 0.34);
  --room-wash-strong: rgba(168, 217, 243, 0.22);
  --assistant-bubble: rgba(137, 203, 239, 0.52);
}

.app-shell[data-room="living_room"] {
  --primary-accent: rgba(225, 245, 254, 0.42);
  --glow-color: rgba(182, 227, 248, 0.44);
  --backdrop-blur: 20px;
  --room-bg-start: #f4fbff;
  --room-bg-end: #d7eefb;
  --room-wash: rgba(162, 214, 242, 0.32);
  --room-wash-strong: rgba(162, 214, 242, 0.2);
  --assistant-bubble: rgba(136, 204, 240, 0.5);
  --echo-text: #1b4761;
}

.app-shell[data-room="study"] {
  --primary-accent: rgba(176, 190, 197, 0.42);
  --glow-color: rgba(176, 190, 197, 0.34);
  --backdrop-blur: 30px;
  --room-bg-start: #eef4f7;
  --room-bg-end: #d7e0e5;
  --room-wash: rgba(160, 175, 184, 0.34);
  --room-wash-strong: rgba(160, 175, 184, 0.22);
  --assistant-bubble: rgba(144, 161, 170, 0.52);
  --echo-text: #213743;
}

.app-shell[data-room="classroom"] {
  --primary-accent: rgba(224, 247, 250, 0.42);
  --glow-color: rgba(177, 232, 229, 0.34);
  --backdrop-blur: 25px;
  --room-bg-start: #f3fffe;
  --room-bg-end: #d9f4f1;
  --room-wash: rgba(151, 221, 214, 0.34);
  --room-wash-strong: rgba(151, 221, 214, 0.22);
  --assistant-bubble: rgba(136, 219, 210, 0.48);
  --echo-text: #1c4340;
}

.app-shell[data-room="workshop"] {
  --primary-accent: rgba(144, 202, 249, 0.42);
  --glow-color: rgba(144, 202, 249, 0.34);
  --backdrop-blur: 20px;
  --room-bg-start: #edf7ff;
  --room-bg-end: #d0e7fb;
  --room-wash: rgba(104, 176, 241, 0.4);
  --room-wash-strong: rgba(104, 176, 241, 0.28);
  --assistant-bubble: rgba(92, 168, 238, 0.58);
  --echo-text: #11385a;
}

.app-shell[data-room="bedroom"] {
  --primary-accent: rgba(216, 191, 216, 0.42);
  --glow-color: rgba(216, 191, 216, 0.34);
  --backdrop-blur: 25px;
  --room-bg-start: #fbf4fb;
  --room-bg-end: #eadcf0;
  --room-wash: rgba(206, 170, 214, 0.36);
  --room-wash-strong: rgba(206, 170, 214, 0.24);
  --assistant-bubble: rgba(196, 155, 204, 0.54);
  --echo-text: #402747;
}

.app-shell[data-room="secret_room"] {
  --primary-accent: rgba(198, 40, 40, 0.24);
  --glow-color: rgba(198, 40, 40, 0.26);
  --backdrop-blur: 15px;
  --room-bg-start: #f5ebec;
  --room-bg-end: #e4d2d4;
  --room-wash: rgba(170, 57, 57, 0.34);
  --room-wash-strong: rgba(170, 57, 57, 0.26);
  --assistant-bubble: rgba(133, 33, 33, 0.7);
  --echo-text: #fff5f5;
}

.app-shell[data-room="balcony"] {
  --primary-accent: rgba(255, 209, 220, 0.42);
  --glow-color: rgba(255, 209, 220, 0.34);
  --backdrop-blur: 20px;
  --room-bg-start: #fff7f9;
  --room-bg-end: #f9e5ec;
  --room-wash: rgba(255, 182, 193, 0.34);
  --room-wash-strong: rgba(255, 182, 193, 0.22);
  --assistant-bubble: rgba(248, 176, 194, 0.54);
  --echo-text: #5a3042;
}

html,
body {
  background:
    radial-gradient(circle at 18% 18%, rgba(255, 255, 255, 0.82), transparent 24%),
    radial-gradient(circle at 84% 12%, rgba(162, 214, 242, 0.3), transparent 28%),
    radial-gradient(circle at 76% 84%, rgba(255, 255, 255, 0.5), transparent 24%),
    linear-gradient(145deg, #f2fbff 0%, #e1f5fe 48%, #d8f0fb 100%) !important;
  font-family: var(--font-family) !important;
  color: var(--ink) !important;
}

body {
  font-weight: 400;
  font-size: 16px;
}

.app-shell {
  background:
    radial-gradient(circle at 14% 18%, rgba(255, 255, 255, 0.72), transparent 26%),
    radial-gradient(circle at 84% 16%, var(--room-wash), transparent 32%),
    radial-gradient(circle at 72% 78%, var(--room-wash-strong), transparent 34%),
    linear-gradient(150deg, var(--room-bg-start) 0%, var(--global-bg) 48%, var(--room-bg-end) 100%) !important;
  color: var(--ink);
  font-family: var(--font-family) !important;
}

.brand-block h1,
.panel-heading h2,
.hero-card h3,
.modal-card h2 {
  font-family: var(--font-family) !important;
  font-weight: 500 !important;
  letter-spacing: 0.01em;
}

.brand-block {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 72px;
  padding: 8px 6px 6px 2px;
}

.brand-copy {
  position: relative;
  display: flex;
  align-items: flex-start;
}

.brand-sticker {
  position: relative;
  z-index: 1;
  flex: none;
  filter: drop-shadow(0 8px 14px rgba(118, 150, 177, 0.12));
}

.brand-book {
  font-size: 34px;
  transform: rotate(-8deg) translateY(6px);
}

.brand-heart {
  position: absolute;
  right: -22px;
  bottom: -6px;
  font-size: 20px;
  transform: rotate(-8deg);
}

.brand-block h1 {
  position: relative;
  z-index: 1;
  margin: 0;
  font-family: var(--font-family-hand) !important;
  font-size: 40px !important;
  line-height: 1.02 !important;
  font-weight: 400 !important;
  letter-spacing: 0.01em;
}

.panel-heading h2,
#active-room-name {
  font-size: 22px !important;
  line-height: 1.14 !important;
  font-weight: 600 !important;
}

#active-session-title,
.session-item strong {
  font-family: var(--font-family) !important;
  font-weight: 600 !important;
  letter-spacing: 0 !important;
}

.sidebar-section-head h3 {
  font-size: 18px !important;
  line-height: 1.15 !important;
}

.session-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.session-usage-summary {
  margin: 6px 0 0;
  line-height: 1.45;
  letter-spacing: 0.04em !important;
}

.title-edit-button {
  min-width: 32px;
  width: 32px;
  min-height: 32px;
  height: 32px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.title-edit-button:hover:not(:disabled) {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.24);
}

.title-edit-button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.eyebrow,
.hero-kicker,
.field span,
.field-hint,
.muted,
.session-item small,
.message-card small,
.room-chip small,
.toggle-row,
.pill {
  color: var(--muted) !important;
  font-size: 12px !important;
  letter-spacing: 0.08em;
}

.eyebrow,
.hero-kicker {
  font-size: 12px !important;
  letter-spacing: 0.18em;
}

.topbar,
.sidebar,
.chat-panel,
.settings-card,
.modal-card,
.composer,
.hero-card,
.empty-card,
.settings-group,
.note-card,
.provider-card,
.attachment-chip {
  border: 1px solid rgba(255, 255, 255, 0.35) !important;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.24), rgba(255, 255, 255, 0.12)) !important;
  box-shadow:
    0 24px 60px rgba(92, 132, 160, 0.16),
    inset 0 1px 0 rgba(255, 255, 255, 0.5) !important;
  backdrop-filter: blur(24px) saturate(140%) !important;
  -webkit-backdrop-filter: blur(24px) saturate(140%) !important;
}

.topbar {
  padding: 6px 2px 8px !important;
  border: 0 !important;
  border-radius: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

.workspace {
  gap: 20px;
}

.sidebar,
.chat-panel {
  border-radius: 30px !important;
}

.sidebar {
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.22), rgba(255, 255, 255, 0.12)) !important;
}

.chat-panel {
  position: relative;
  background:
    radial-gradient(circle at top right, rgba(255, 255, 255, 0.22), transparent 22%),
    linear-gradient(160deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0.1)) !important;
}

.chat-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: inherit;
  background:
    radial-gradient(circle at 16% 12%, var(--room-wash), transparent 24%),
    radial-gradient(circle at 72% 18%, var(--glow-color), transparent 22%),
    radial-gradient(circle at 82% 78%, var(--room-wash-strong), transparent 26%);
  opacity: 0.92;
}

.chat-panel > * {
  position: relative;
  z-index: 1;
}

.hero-card {
  position: relative;
  overflow: hidden;
  border-radius: 24px !important;
  padding: 22px 24px;
  background:
    radial-gradient(circle at top right, var(--glow-color), transparent 28%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.26), rgba(255, 255, 255, 0.16)) !important;
}

.hero-card::after {
  content: "";
  position: absolute;
  inset: -40% auto auto 55%;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.5), transparent 70%);
  pointer-events: none;
}

.pill,
.ghost-button,
.primary-button,
.message-action,
.insight-toggle,
.attachment-remove,
.session-delete,
.toolbar-button {
  border: 1px solid rgba(255, 255, 255, 0.34) !important;
  backdrop-filter: blur(18px) saturate(135%);
  -webkit-backdrop-filter: blur(18px) saturate(135%);
}

.pill {
  background: rgba(255, 255, 255, 0.18) !important;
}

.pill.accent {
  color: var(--ink) !important;
  background: var(--primary-accent) !important;
  box-shadow: inset 0 0 14px rgba(255, 255, 255, 0.16);
}

.primary-button,
.ghost-button {
  padding: 0.72rem 1rem;
  font-size: var(--font-size-body);
  font-weight: 400;
  transition: var(--transition);
}

.primary-button {
  color: #eff8ff !important;
  background: linear-gradient(135deg, rgba(112, 179, 221, 0.82), rgba(77, 129, 160, 0.92)) !important;
  box-shadow: 0 12px 28px rgba(92, 132, 160, 0.22) !important;
}

.ghost-button {
  color: var(--ink) !important;
  background: rgba(255, 255, 255, 0.18) !important;
}

.primary-button:hover:not(:disabled),
.ghost-button:hover:not(:disabled),
.toolbar-button:hover:not(:disabled),
.message-action:hover:not(:disabled),
.attachment-remove:hover:not(:disabled),
.session-delete:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(92, 132, 160, 0.18) !important;
}

.room-chip,
.session-item,
.search-result-item {
  font-size: var(--font-size-title) !important;
  font-weight: 300 !important;
  border-radius: var(--border-radius-small) !important;
  transition: var(--transition) !important;
  border: 1px solid rgba(255, 255, 255, 0.16) !important;
  background: rgba(255, 255, 255, 0.1) !important;
}

.room-chip {
  padding: 0.84rem 0.98rem;
}

.room-chip.active,
.session-item.active {
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.14), var(--assistant-bubble)) !important;
  border-color: rgba(255, 255, 255, 0.34) !important;
  box-shadow:
    inset 0 0 22px var(--glow-color),
    0 0 0 1px rgba(255, 255, 255, 0.08) !important;
}

.room-chip:hover:not(.active),
.session-item:hover:not(.active),
.search-result-item:hover {
  background: rgba(255, 255, 255, 0.16) !important;
}

.session-item,
.search-result-item {
  background: rgba(255, 255, 255, 0.12) !important;
}

.session-item strong,
.search-result-item strong {
  font-size: 16px !important;
  line-height: 1.3 !important;
  font-weight: 600 !important;
}

.session-item strong {
  font-size: 18px !important;
  line-height: 1.18 !important;
}

.session-item small,
.search-result-item small {
  font-size: 12px !important;
}

.session-delete,
.toolbar-button,
.message-action,
.attachment-remove {
  color: var(--muted) !important;
  background: rgba(255, 255, 255, 0.18) !important;
}

.session-delete {
  min-width: 44px !important;
  width: 44px !important;
  min-height: 44px !important;
  height: 44px !important;
  padding: 0 !important;
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  font-size: 16px !important;
  line-height: 1 !important;
}

.sidebar-search {
  z-index: 3;
  margin-left: -2px;
  margin-right: -2px;
  padding: 14px 14px 12px !important;
  border-top: 0;
  border-radius: 22px;
  background: rgba(237, 247, 252, 0.92) !important;
  box-shadow:
    0 -12px 28px rgba(171, 205, 225, 0.18),
    inset 0 1px 0 rgba(255, 255, 255, 0.6) !important;
  backdrop-filter: blur(14px) saturate(120%) !important;
  -webkit-backdrop-filter: blur(14px) saturate(120%) !important;
}

.sidebar-search input,
.field input,
.field select,
.field textarea,
.composer textarea {
  border: 1px solid rgba(255, 255, 255, 0.34) !important;
  background: rgba(255, 255, 255, 0.2) !important;
  color: var(--ink) !important;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.sidebar-search input::placeholder,
.composer textarea::placeholder,
.field input::placeholder,
.field textarea::placeholder {
  color: rgba(48, 66, 77, 0.55);
}

.message-list {
  gap: 16px;
}

.message-card {
  padding: 0 !important;
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
}

.message-card .message-row {
  display: flex !important;
  gap: 14px;
  align-items: flex-end;
}

.message-card.user .message-row {
  flex-direction: row-reverse !important;
}

.message-avatar {
  width: 40px !important;
  height: 40px !important;
  border-radius: 50% !important;
  flex: none;
  object-fit: cover;
  color: transparent !important;
  font-size: 0 !important;
  background-color: transparent !important;
  border: 1px solid rgba(255, 255, 255, 0.42);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.12),
    0 0 20px var(--glow-color),
    0 8px 22px rgba(92, 132, 160, 0.16) !important;
  transition: var(--transition) !important;
}

.message-card.assistant .message-avatar {
  background: url("/avatars/Echo.PNG") center/cover no-repeat !important;
}

.message-card.user .message-avatar {
  background: url("/avatars/Pool.PNG") center/cover no-repeat !important;
}

.message-main {
  width: fit-content;
  min-width: 0;
  max-width: min(75%, 780px);
  padding: 12px 16px;
  border-radius: var(--border-radius);
  font-size: var(--font-size-body);
  line-height: var(--line-height);
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow:
    0 12px 28px rgba(92, 132, 160, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.36);
  backdrop-filter: blur(var(--backdrop-blur)) saturate(140%);
  -webkit-backdrop-filter: blur(var(--backdrop-blur)) saturate(140%);
}

.message-head strong {
  font-size: 15px !important;
}

.message-head small {
  font-size: 12px !important;
}

.message-card.assistant .message-main {
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.12), var(--assistant-bubble)) !important;
  color: var(--echo-text) !important;
  border-color: rgba(255, 255, 255, 0.28) !important;
  border-bottom-left-radius: 4px !important;
}

.message-card.user .message-main {
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.18), var(--pool-bubble)) !important;
  color: var(--pool-text) !important;
  border-bottom-right-radius: 4px !important;
}

.message-head {
  margin-bottom: 6px !important;
}

.message-card.assistant .message-head strong,
.message-card.assistant .message-head small,
.message-card.assistant .message-body,
.message-card.assistant .markdown-body,
.message-card.assistant .markdown-body p,
.message-card.assistant .markdown-body li,
.message-card.assistant .markdown-body code,
.message-card.assistant .markdown-body a {
  color: var(--echo-text) !important;
  text-shadow: 0 1px 1px rgba(255, 255, 255, 0.08);
}

.message-card.user .message-head strong {
  color: var(--pool-text) !important;
}

.message-card.assistant .message-head strong,
.message-card.user .message-head strong {
  font-weight: 600;
}

.message-card.assistant .markdown-body code,
.message-card.user .markdown-body code,
.message-card.assistant code,
.message-card.user code {
  background: rgba(255, 255, 255, 0.14) !important;
}

.message-card.assistant .markdown-body blockquote,
.message-card.user .markdown-body blockquote {
  border-left-color: rgba(255, 255, 255, 0.28) !important;
}

.message-actions {
  margin: 12px 0 0 !important;
  gap: 10px !important;
}

.message-usage {
  margin-top: 10px;
  font-size: 11px !important;
  line-height: 1.5;
  opacity: 0.9;
  word-break: break-word;
}

.message-body,
.markdown-body,
.markdown-body p,
.markdown-body li,
.composer textarea,
.sidebar-search input,
.field input,
.field select,
.field textarea,
.toggle-row,
.room-chip {
  font-size: 12px !important;
}

.toolbar-button,
.primary-button,
.ghost-button {
  font-size: 12px !important;
}

.message-action-icon {
  min-width: 44px;
  width: 44px;
  min-height: 44px;
  height: 44px;
  padding: 0 !important;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  line-height: 1;
}

.insight-toggle {
  font-size: var(--font-size-meta) !important;
  background: rgba(255, 255, 255, 0.16) !important;
}

.insight-toggle.thinking-toggle,
.insight-toggle.summary-toggle {
  color: var(--ink) !important;
}

.insight-panel {
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.12) !important;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.insight-panel.thinking-panel {
  background: rgba(147, 112, 219, 0.08) !important;
  border-left: 2px solid var(--glow-color) !important;
  border-radius: 0 var(--border-radius-small) var(--border-radius-small) 0 !important;
  color: rgba(72, 80, 92, 0.84) !important;
}

.insight-panel.summary-panel {
  background: rgba(255, 255, 255, 0.14) !important;
  border-radius: var(--border-radius-small) !important;
}

.composer {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  padding: 12px 14px !important;
  border-radius: 24px !important;
  background:
    linear-gradient(150deg, rgba(255, 255, 255, 0.24), rgba(255, 255, 255, 0.14)) !important;
}

.composer-toolbar {
  gap: 8px;
}

.composer textarea {
  border-radius: 16px !important;
  font-size: var(--font-size-body) !important;
  line-height: 1.55;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.composer textarea:focus,
.field input:focus,
.field select:focus,
.field textarea:focus,
.sidebar-search input:focus {
  border-color: rgba(255, 255, 255, 0.42) !important;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.18),
    0 0 0 6px rgba(255, 255, 255, 0.08),
    0 0 20px var(--glow-color) !important;
  outline: none !important;
}

#send-button {
  position: relative;
  width: 48px !important;
  height: 48px !important;
  min-width: 48px !important;
  padding: 0 !important;
  border: 1px solid rgba(255, 255, 255, 0.34) !important;
  border-radius: 50% !important;
  color: transparent !important;
  font-size: 0 !important;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.16), var(--primary-accent)) !important;
  box-shadow:
    0 10px 28px rgba(92, 132, 160, 0.16),
    0 0 18px var(--glow-color) !important;
}

#send-button::before {
  content: "↑";
  color: #f7fbff;
  font-size: 18px;
  font-weight: 600;
  line-height: 1;
}

#send-button:hover:not(:disabled) {
  transform: scale(1.05) !important;
  box-shadow:
    0 14px 32px rgba(92, 132, 160, 0.2),
    0 0 24px var(--glow-color) !important;
}

#send-button:disabled {
  opacity: 0.55;
  box-shadow: none !important;
}

.settings-panel,
.modal-backdrop,
.session-sidebar-backdrop {
  background: rgba(198, 223, 236, 0.22) !important;
  backdrop-filter: blur(12px) !important;
  -webkit-backdrop-filter: blur(12px) !important;
}

.settings-card,
.modal-card {
  background: linear-gradient(150deg, rgba(255, 255, 255, 0.28), rgba(255, 255, 255, 0.18)) !important;
}

.app-shell[data-room="balcony"] {
  background:
    radial-gradient(circle at 18% 16%, rgba(255, 255, 255, 0.7), transparent 22%),
    radial-gradient(circle at 82% 22%, rgba(255, 192, 203, 0.32), transparent 28%),
    linear-gradient(180deg, rgba(255, 209, 220, 0.48) 0%, rgba(225, 245, 254, 0.34) 52%, rgba(200, 230, 255, 0.3) 100%) !important;
}

.app-shell[data-room="balcony"] .chat-panel {
  background:
    linear-gradient(180deg, rgba(255, 209, 220, 0.14) 0%, rgba(255, 255, 255, 0.12) 46%, rgba(225, 245, 254, 0.16) 100%) !important;
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-thumb {
  border: 2px solid transparent;
  border-radius: 999px;
  background: rgba(103, 151, 179, 0.24);
  background-clip: padding-box;
}

::-webkit-scrollbar-track {
  background: transparent;
}

@media (max-width: 768px) {
  :root {
    --font-size-title: 12px;
    --font-size-body: 11px;
    --font-size-meta: 10px;
    --border-radius: 16px;
    --mobile-composer-offset: 110px;
  }

  .brand-block h1 {
    font-size: 28px !important;
    letter-spacing: 0.01em;
  }

  .brand-book {
    font-size: 24px;
    transform: rotate(-8deg) translateY(4px);
  }

  .brand-heart {
    right: -14px;
    bottom: -4px;
    font-size: 16px;
  }

  .panel-heading h2,
  #active-room-name {
    font-size: 18px !important;
  }

  .session-title-row {
    gap: 8px;
  }

  .title-edit-button {
    min-width: 28px;
    width: 28px;
    min-height: 28px;
    height: 28px;
  }

  .session-item strong,
  .search-result-item strong,
  .message-head strong {
    font-size: 14px !important;
  }

  .topbar,
  .sidebar,
  .chat-panel,
  .composer {
    border-radius: 20px !important;
  }

  .message-card .message-row {
    gap: 8px !important;
    width: 100%;
    min-width: 0;
    overflow: hidden;
  }

  .message-card {
    max-width: 100% !important;
    overflow: hidden !important;
  }

  .message-avatar {
    width: 32px !important;
    height: 32px !important;
  }

  .message-main {
    width: auto !important;
    flex: 1 1 auto;
    min-width: 0;
    max-width: calc(100% - 56px) !important;
    padding: 10px 14px;
    overflow-x: hidden !important;
    box-shadow:
      0 8px 18px rgba(92, 132, 160, 0.1),
      inset 0 1px 0 rgba(255, 255, 255, 0.32) !important;
  }

  .message-body {
    font-size: var(--font-size-body) !important;
    line-height: 1.5 !important;
  }

  .message-body,
  .markdown-body,
  .markdown-body p,
  .markdown-body li,
  .message-content-stack,
  .message-actions,
  .insight-toggle,
  .insight-panel {
    min-width: 0;
    max-width: 100%;
    overflow-wrap: anywhere;
    word-break: break-word;
  }

  .message-list,
  .message-main,
  .message-content-stack,
  .message-body,
  .markdown-body,
  .chat-panel {
    overflow-x: hidden !important;
    overscroll-behavior-x: none !important;
  }

  .message-list::-webkit-scrollbar:horizontal,
  .message-main::-webkit-scrollbar:horizontal,
  .message-content-stack::-webkit-scrollbar:horizontal,
  .message-body::-webkit-scrollbar:horizontal,
  .markdown-body::-webkit-scrollbar:horizontal,
  .chat-panel::-webkit-scrollbar:horizontal {
    display: none;
    height: 0 !important;
  }

  .room-chip,
  .session-item,
  .search-result-item {
    font-size: var(--font-size-title) !important;
  }

  .composer {
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) 48px !important;
    align-items: end !important;
    gap: 8px !important;
    padding: 10px !important;
    padding-bottom: calc(10px + env(safe-area-inset-bottom, 0px)) !important;
  }

  .composer-main {
    display: flex !important;
    flex-direction: column !important;
    gap: 8px !important;
    min-width: 0;
  }

  .composer-toolbar {
    display: flex !important;
    flex-wrap: wrap !important;
    gap: 8px !important;
  }

  .attachment-preview {
    margin: 0;
  }

  .composer textarea {
    min-height: 56px;
    max-height: 132px;
    width: 100%;
    padding: 12px 14px !important;
    font-size: 16px !important;
    line-height: 1.4 !important;
    border-color: rgba(255, 255, 255, 0.46) !important;
    background: rgba(255, 255, 255, 0.34) !important;
    box-shadow:
      inset 0 1px 0 rgba(255, 255, 255, 0.52),
      0 8px 18px rgba(171, 205, 225, 0.1) !important;
  }

  .composer-actions {
    position: static !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: flex-end !important;
    gap: 8px !important;
    align-self: end;
    min-width: 44px;
  }

  #send-button {
    width: 44px !important;
    height: 44px !important;
    min-width: 44px !important;
    align-self: end;
  }

  .session-delete,
  .message-action-icon {
    min-width: 40px !important;
    width: 40px !important;
    min-height: 40px !important;
    height: 40px !important;
    font-size: 16px !important;
  }

  .message-actions {
    gap: 8px !important;
  }

  .message-action,
  .message-action.subtle,
  .message-action-icon {
    min-width: auto !important;
    width: auto !important;
    min-height: auto !important;
    height: auto !important;
    padding: 2px 4px !important;
    border: 0 !important;
    border-radius: 0 !important;
    background: transparent !important;
    box-shadow: none !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    font-size: 18px !important;
    line-height: 1 !important;
  }

  .message-action:hover:not(:disabled),
  .message-action.subtle:hover:not(:disabled),
  .message-action-icon:hover:not(:disabled) {
    transform: none !important;
    box-shadow: none !important;
    background: transparent !important;
  }

  .sidebar-search {
    margin-left: 0;
    margin-right: 0;
    padding: 12px 10px calc(8px + env(safe-area-inset-bottom, 0px)) !important;
    border-radius: 18px 18px 20px 20px;
    background: rgba(239, 248, 253, 0.96) !important;
    box-shadow:
      0 -10px 24px rgba(171, 205, 225, 0.18),
      inset 0 1px 0 rgba(255, 255, 255, 0.62) !important;
  }

  .settings-panel {
    padding: 8px 8px calc(120px + env(safe-area-inset-bottom, 0px)) !important;
  }

  .settings-card {
    width: 100% !important;
    max-height: none !important;
    margin: 0 auto !important;
    padding: 14px !important;
    border-radius: 24px !important;
    overflow: visible !important;
  }

  .settings-content {
    padding-bottom: calc(28px + env(safe-area-inset-bottom, 0px));
  }

  .notes-stack {
    padding-bottom: 12px;
  }

  .note-actions {
    flex-wrap: wrap;
  }

  .note-actions .ghost-button,
  .note-actions .primary-button {
    min-width: 96px;
  }
}

@supports (-webkit-touch-callout: none) {
  @media (max-width: 768px) {
    :root {
      --mobile-browser-chrome-offset: 72px;
    }
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --global-bg: #0d1b2a;
    --global-bg-alpha: rgba(13, 27, 42, 0.62);
    --pool-bubble: rgba(245, 222, 179, 0.14);
    --pool-text: #e6eef3;
    --echo-text: #f5f9fc;
    --ink: #e6eef3;
    --muted: rgba(230, 238, 243, 0.72);
    --line: rgba(255, 255, 255, 0.12);
  }

  html,
  body {
    background:
      radial-gradient(circle at 18% 18%, rgba(255, 255, 255, 0.08), transparent 24%),
      radial-gradient(circle at 80% 12%, rgba(123, 180, 219, 0.18), transparent 28%),
      linear-gradient(145deg, #0d1b2a 0%, #12283b 52%, #16354c 100%) !important;
    color: var(--ink) !important;
  }

  .topbar,
  .sidebar,
  .chat-panel,
  .settings-card,
  .modal-card,
  .composer,
  .hero-card,
  .empty-card,
  .settings-group,
  .note-card,
  .provider-card,
  .attachment-chip {
    background: linear-gradient(145deg, rgba(17, 35, 52, 0.62), rgba(17, 35, 52, 0.4)) !important;
    border-color: rgba(255, 255, 255, 0.12) !important;
    box-shadow:
      0 24px 60px rgba(0, 0, 0, 0.26),
      inset 0 1px 0 rgba(255, 255, 255, 0.05) !important;
  }

  .sidebar-search,
  .sidebar-search input,
  .field input,
  .field select,
  .field textarea,
  .composer textarea,
  .room-chip,
  .session-item,
  .search-result-item,
  .message-action,
  .session-delete,
  .toolbar-button,
  .ghost-button,
  .pill,
  .insight-panel,
  .insight-toggle {
    background: rgba(255, 255, 255, 0.06) !important;
    color: var(--ink) !important;
  }

  .composer textarea::placeholder,
  .sidebar-search input::placeholder {
    color: rgba(230, 238, 243, 0.48);
  }
}