/* Open WebUI–inspired dark theme (gray scale from OWUI tailwind.css) */
:root {
  --gray-50: #fafafa;
  --gray-100: #f0f0f0;
  --gray-200: #e5e5e5;
  --gray-300: #d4d4d4;
  --gray-400: #a3a3a3;
  --gray-500: #8a8a8a;
  --gray-600: #6b6b6b;
  --gray-700: #525252;
  --gray-800: #3a3a3a;
  --gray-850: #2b2b2b;
  --gray-900: #171717;
  --gray-950: #0d0d0d;
  --sidebar-w: 280px;
  --font: -apple-system, BlinkMacSystemFont, "Inter", ui-sans-serif, system-ui, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "JetBrains Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  font-family: var(--font);
  background: var(--gray-900);
  color: #eee;
  -webkit-font-smoothing: antialiased;
}
.hidden { display: none !important; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }

/* —— Login —— */
.login {
  min-height: 100%;
  display: grid;
  place-items: center;
  background: var(--gray-900);
  padding: 1.5rem;
}
.login-card {
  width: min(400px, 100%);
  background: var(--gray-950);
  border: 1px solid var(--gray-850);
  border-radius: 1rem;
  padding: 2rem 1.75rem 1.75rem;
}
.login-logo {
  width: 2.75rem; height: 2.75rem;
  border-radius: 0.75rem;
  background: #fff;
  color: #000;
  display: grid; place-items: center;
  margin: 0 auto 1rem;
}
.login h1 {
  margin: 0 0 .25rem;
  text-align: center;
  font-size: 1.35rem;
  font-weight: 600;
  color: #fff;
}
.login-sub {
  text-align: center;
  color: var(--gray-400);
  font-size: .9rem;
  margin: 0 0 1.25rem;
}
.login label {
  display: block;
  font-size: .8rem;
  color: var(--gray-400);
  margin: .65rem 0 .3rem;
}
.login input {
  width: 100%;
  padding: .7rem .9rem;
  border-radius: .75rem;
  border: 1px solid var(--gray-800);
  background: var(--gray-900);
  outline: none;
}
.login input:focus { border-color: var(--gray-600); }
.btn-primary {
  border: none;
  border-radius: .75rem;
  padding: .7rem 1rem;
  background: #fff;
  color: #000;
  font-weight: 600;
  margin-top: 1rem;
}
.btn-primary:hover { background: var(--gray-100); }
.btn-primary.block { width: 100%; }
.btn-secondary {
  border: 1px solid var(--gray-700);
  border-radius: .75rem;
  padding: .7rem 1rem;
  background: transparent;
  color: #eee;
  font-weight: 500;
}
html.theme-light .btn-secondary,
html.light .btn-secondary {
  border-color: rgba(0,0,0,.18);
  background: #fff;
  color: #111;
}
.btn-secondary:hover { background: var(--gray-850); }
.btn-secondary:disabled { opacity: .5; cursor: not-allowed; }
.form-actions {
  display: flex;
  gap: .55rem;
  margin-top: 1rem;
}
.form-actions .btn-primary,
.form-actions .btn-secondary { flex: 1; }
.err { color: #f87171; font-size: .85rem; min-height: 1.2em; margin: .5rem 0 0; }
.err.ok { color: #4ade80; }

/* —— Shell —— */
.app {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  height: 100%;
  overflow: hidden;
}

/* Sidebar — OWUI nav */
.sidebar {
  background: var(--gray-950);
  border-right: 1px solid rgba(255,255,255,.04);
  display: flex;
  flex-direction: column;
  min-height: 0;
  color: var(--gray-300);
}
.sb-top { padding: .65rem .55rem .25rem; }
.sb-brand {
  display: flex;
  align-items: center;
  gap: .55rem;
  padding: .35rem .45rem .7rem;
}
.sb-logo {
  width: 1.65rem; height: 1.65rem;
  border-radius: .45rem;
  background: #fff;
  flex-shrink: 0;
}
.sb-name {
  flex: 1;
  font-weight: 600;
  font-size: .95rem;
  color: #fff;
}
.sb-close { display: none; } /* legacy */
.sb-action {
  display: flex;
  align-items: center;
  gap: .65rem;
  width: 100%;
  padding: .55rem .7rem;
  margin-bottom: .15rem;
  border: none;
  border-radius: .65rem;
  background: transparent;
  color: var(--gray-200);
  text-align: left;
  font-size: .9rem;
}
.sb-action:hover { background: var(--gray-850); color: #fff; }
.sb-action.muted { color: var(--gray-400); }

.sb-section {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  padding: .35rem .4rem 0;
  overflow: hidden;
}
.sb-section-title {
  padding: .5rem .65rem .25rem;
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--gray-500);
  flex-shrink: 0;
}
.conv-list {
  flex: 1;
  min-height: 0;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: .1rem;
  padding-bottom: .5rem;
}
.conv-list-nested {
  flex: 0 1 auto;
  max-height: none;
  min-height: 0;
  overflow-x: hidden;
  overflow-y: auto;
  padding-bottom: .25rem;
  padding-right: .1rem;
}
.conv-list::-webkit-scrollbar,
.conv-list-nested::-webkit-scrollbar { width: .45rem; }
.conv-list::-webkit-scrollbar-thumb,
.conv-list-nested::-webkit-scrollbar-thumb {
  background: rgba(67,67,67,.6);
  border-radius: 9999px;
}
.conv-row {
  display: flex;
  align-items: center;
  gap: 0;
  border-radius: .55rem;
  position: relative;
  min-height: 2.25rem;
}
.conv-row:hover,
.conv-row.active {
  background: var(--gray-850);
}
.conv-row.active .conv-item { color: #fff; }
.conv-item {
  flex: 1;
  min-width: 0;
  border: none;
  background: transparent;
  color: var(--gray-200);
  text-align: left;
  padding: .55rem .35rem .55rem .75rem;
  border-radius: .55rem;
  font-size: .875rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: pointer;
}
.conv-item:hover { color: #fff; }
.conv-pin-ico {
  flex-shrink: 0;
  color: var(--gray-500);
  display: grid;
  place-items: center;
  width: 1.1rem;
}
.conv-more {
  flex-shrink: 0;
  opacity: 1 !important;
  visibility: visible !important;
  border: none;
  background: transparent;
  color: var(--gray-400);
  width: 2rem;
  height: 2rem;
  border-radius: .45rem;
  display: grid !important;
  place-items: center;
  padding: 0;
  margin-right: .25rem;
  cursor: pointer;
}
.conv-more svg { display: block; pointer-events: none; }
.conv-more:hover,
.conv-row:hover .conv-more,
.conv-row.active .conv-more {
  opacity: 1;
  background: rgba(255,255,255,.08);
  color: #fff;
}
.conv-menu {
  position: fixed;
  z-index: 200;
  min-width: 12rem;
  padding: .35rem;
  background: #2a2a2a;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: .75rem;
  box-shadow: 0 12px 40px rgba(0,0,0,.55);
}
.conv-menu.hidden { display: none !important; }
.conv-menu button {
  display: flex;
  align-items: center;
  gap: .65rem;
  width: 100%;
  border: none;
  background: transparent;
  color: #eee;
  text-align: left;
  padding: .55rem .65rem;
  border-radius: .5rem;
  font-size: .875rem;
  cursor: pointer;
}
.conv-menu button:hover { background: rgba(255,255,255,.08); }
.conv-menu button.danger { color: #f87171; }
.conv-menu button.danger:hover { background: rgba(248,113,113,.12); }
.conv-menu .sep {
  height: 1px;
  margin: .25rem .35rem;
  background: rgba(255,255,255,.08);
}
.conv-menu svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  opacity: .9;
}

.sb-bottom {
  border-top: 1px solid rgba(255,255,255,.05);
  padding: .45rem;
}
.user-row {
  display: flex;
  align-items: center;
  gap: .65rem;
  width: 100%;
  padding: .5rem .55rem;
  border: none;
  border-radius: .65rem;
  background: transparent;
  color: #eee;
  text-align: left;
}
.user-row:hover { background: var(--gray-850); }
.user-av, .nav-user-av {
  width: 1.75rem; height: 1.75rem;
  border-radius: 9999px;
  background: linear-gradient(135deg, #6366f1, #3b82f6);
  color: #fff;
  font-size: .7rem;
  font-weight: 700;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.user-meta { flex: 1; min-width: 0; display: flex; flex-direction: column; line-height: 1.15; }
.user-name { font-size: .875rem; font-weight: 500; color: #fff; }
.user-role { font-size: .7rem; color: var(--gray-500); }
.chev { color: var(--gray-500); }
.sb-logout {
  width: 100%;
  margin-top: .2rem;
  padding: .45rem .65rem;
  border: none;
  border-radius: .55rem;
  background: transparent;
  color: var(--gray-500);
  font-size: .8rem;
  text-align: left;
}
.sb-logout:hover { background: var(--gray-850); color: #f87171; }

/* Main */
.main-wrap {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  background: var(--gray-900);
  position: relative;
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: .35rem;
  padding: .4rem .65rem .35rem;
  background: linear-gradient(to bottom, rgba(23,23,23,.95) 40%, transparent);
}
.icon-btn {
  border: none;
  background: transparent;
  color: var(--gray-400);
  width: 2.25rem;
  height: 2.25rem;
  border-radius: .65rem;
  display: grid;
  place-items: center;
  padding: 0;
}
.icon-btn:hover {
  background: var(--gray-850);
  color: #fff;
}
#btn-menu { display: none; }
.model-selector {
  flex: 1;
  min-width: 0;
  overflow: hidden;
}
.model-selector select {
  max-width: 100%;
  border: none;
  background: transparent;
  color: #eee;
  font-size: 1rem;
  font-weight: 500;
  padding: .35rem 1.75rem .35rem .25rem;
  outline: none;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3E%3Cpath stroke='%236B7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0 center;
  background-size: 1.35em 1.35em;
}
.model-selector select option {
  background: #fff;
  color: #111;
}
html.theme-dark .model-selector select option,
html.dark .model-selector select option {
  background: #171717;
  color: #f3f3f3;
}
.nav-right {
  display: flex;
  align-items: center;
  gap: .15rem;
  flex-shrink: 0;
}

/* Messages */
.messages {
  flex: 1;
  overflow: auto;
  scroll-behavior: smooth;
  padding: .5rem 0 1rem;
}
.messages::-webkit-scrollbar { width: .45rem; }
.messages::-webkit-scrollbar-thumb {
  background: rgba(67,67,67,.6);
  border-radius: 9999px;
}

.empty {
  min-height: 55%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem 4rem;
}
.empty-inner {
  width: min(48rem, 100%);
  text-align: left;
  padding: 0 1.25rem;
}
.empty-model-row {
  display: flex;
  align-items: center;
  gap: .85rem;
  margin-bottom: .35rem;
}
.empty-avatar {
  width: 2.5rem; height: 2.5rem;
  border-radius: 9999px;
  background: #fff;
  color: #111;
  font-size: .75rem;
  font-weight: 700;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.empty-title {
  font-size: 1.75rem;
  font-weight: 500;
  color: var(--text-primary, #f3f3f3);
  line-height: 1.2;
  letter-spacing: -.02em;
}
.empty-sub {
  margin-top: .25rem;
  margin-left: calc(2.5rem + .85rem);
  color: var(--gray-400);
  font-size: 1rem;
}

/* Chat messages — bubble mode like OWUI default */
.msg {
  width: 100%;
  padding: .65rem 0;
}
.msg-inner {
  width: min(48rem, 100%);
  margin: 0 auto;
  padding: 0 1.25rem;
}
.msg.user .msg-inner {
  display: flex;
  justify-content: flex-end;
}
.msg.user .bubble {
  max-width: 90%;
  background: var(--gray-850);
  border-radius: 1.5rem;
  padding: .55rem 1.05rem;
  line-height: 1.55;
  font-size: .95rem;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.msg.assistant .msg-inner {
  display: flex;
  gap: .85rem;
  align-items: flex-start;
}
.msg.assistant .avatar {
  width: 2rem; height: 2rem;
  border-radius: 9999px;
  background: #fff;
  color: #111;
  font-size: .65rem;
  font-weight: 700;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  margin-top: .15rem;
}
.msg.assistant .body { flex: 1; min-width: 0; }
.msg.assistant .role {
  font-size: .8rem;
  font-weight: 600;
  color: #eee;
  margin-bottom: .25rem;
}
.msg.assistant .bubble {
  line-height: 1.65;
  font-size: .95rem;
  overflow-wrap: anywhere;
  color: #eee;
}
.msg .bubble pre {
  background: var(--gray-950);
  border: 1px solid var(--gray-850);
  border-radius: .65rem;
  padding: .75rem 1rem;
  overflow: auto;
  font-family: var(--mono);
  font-size: .82rem;
  margin: .5rem 0;
}
.msg .bubble code {
  font-family: var(--mono);
  font-size: .88em;
  background: rgba(255,255,255,.06);
  padding: .1em .35em;
  border-radius: .3rem;
}
.msg .bubble pre code { background: none; padding: 0; }
.msg .bubble p { margin: 0 0 .55em; }
.msg .bubble p:last-child { margin-bottom: 0; }
.msg .bubble a { color: #93c5fd; }
.msg .bubble h1,
.msg .bubble h2,
.msg .bubble h3,
.msg .bubble h4,
.msg .bubble h5,
.msg .bubble h6 {
  margin: 1em 0 .4em;
  font-weight: 650;
  line-height: 1.3;
  color: inherit;
}
.msg .bubble h1 { font-size: 1.35em; }
.msg .bubble h2 { font-size: 1.2em; }
.msg .bubble h3 { font-size: 1.08em; }
.msg .bubble h4,
.msg .bubble h5,
.msg .bubble h6 { font-size: 1em; opacity: .95; }
.msg .bubble h1:first-child,
.msg .bubble h2:first-child,
.msg .bubble h3:first-child { margin-top: 0; }
.msg .bubble ul,
.msg .bubble ol {
  margin: .35em 0 .7em;
  padding-left: 1.35em;
}
.msg .bubble li { margin: .2em 0; }
.msg .bubble li > ul,
.msg .bubble li > ol { margin: .15em 0; }
.msg .bubble hr {
  border: 0;
  border-top: 1px solid rgba(255,255,255,.12);
  margin: .9em 0;
}
.msg .bubble blockquote {
  margin: .5em 0;
  padding: .35em 0 .35em .85em;
  border-left: 3px solid rgba(147,197,253,.55);
  color: rgba(238,238,238,.85);
}
.msg .bubble .md-table-wrap {
  overflow-x: auto;
  margin: .65em 0 .9em;
  border-radius: .65rem;
  border: 1px solid rgba(255,255,255,.08);
}
.msg .bubble .md-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .9em;
  min-width: 16rem;
}
.msg .bubble .md-table th,
.msg .bubble .md-table td {
  padding: .5rem .7rem;
  border-bottom: 1px solid rgba(255,255,255,.08);
  text-align: left;
  vertical-align: top;
}
.msg .bubble .md-table th {
  background: rgba(255,255,255,.05);
  font-weight: 600;
  white-space: nowrap;
}
.msg .bubble .md-table tr:last-child td { border-bottom: 0; }
.msg .bubble .md-table tbody tr:hover td {
  background: rgba(255,255,255,.03);
}
html.theme-light .msg .bubble hr,
html.light .msg .bubble hr {
  border-top-color: rgba(0,0,0,.1);
}
html.theme-light .msg .bubble blockquote,
html.light .msg .bubble blockquote {
  border-left-color: rgba(37,99,235,.45);
  color: rgba(15,23,42,.78);
}
html.theme-light .msg .bubble .md-table-wrap,
html.light .msg .bubble .md-table-wrap {
  border-color: rgba(0,0,0,.08);
}
html.theme-light .msg .bubble .md-table th,
html.light .msg .bubble .md-table th {
  background: rgba(0,0,0,.04);
}
html.theme-light .msg .bubble .md-table th,
html.theme-light .msg .bubble .md-table td,
html.light .msg .bubble .md-table th,
html.light .msg .bubble .md-table td {
  border-bottom-color: rgba(0,0,0,.07);
}
html.theme-light .msg .bubble .md-table tbody tr:hover td,
html.light .msg .bubble .md-table tbody tr:hover td {
  background: rgba(0,0,0,.025);
}

/* Code blocks + media in assistant replies */
.msg .bubble .code-block {
  margin: .65em 0 .9em;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: .75rem;
  overflow: hidden;
  background: var(--gray-950, #0d0d0d);
}
.msg .bubble .code-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
  padding: .35rem .7rem;
  background: rgba(255,255,255,.04);
  border-bottom: 1px solid rgba(255,255,255,.08);
  font-size: .72rem;
  color: rgba(238,238,238,.7);
}
.msg .bubble .code-lang {
  text-transform: lowercase;
  font-family: var(--mono, ui-monospace, monospace);
  letter-spacing: .02em;
}
.msg .bubble .code-copy {
  appearance: none;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  cursor: pointer;
  padding: .15rem .45rem;
  border-radius: .35rem;
  opacity: .85;
}
.msg .bubble .code-copy:hover {
  background: rgba(255,255,255,.08);
  opacity: 1;
}
.msg .bubble .code-block pre {
  margin: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  max-height: 28rem;
}
.msg .bubble .md-img {
  display: block;
  max-width: min(100%, 28rem);
  height: auto;
  border-radius: .65rem;
  margin: .5em 0;
}
.msg .bubble .task-li {
  list-style: none;
  margin-left: -1.1em;
  display: flex;
  gap: .45em;
  align-items: flex-start;
}
.msg .bubble .task-li input {
  margin-top: .35em;
  flex-shrink: 0;
}
.msg .bubble .stream-caret {
  display: inline-block;
  width: .45em;
  height: 1.05em;
  margin-left: .12em;
  vertical-align: text-bottom;
  background: currentColor;
  opacity: .55;
  border-radius: 1px;
  animation: streamCaret 1s steps(1) infinite;
}
@keyframes streamCaret {
  50% { opacity: 0; }
}
html.theme-light .msg .bubble .code-block,
html.light .msg .bubble .code-block {
  border-color: rgba(0,0,0,.1);
  background: #f6f7f9;
}
html.theme-light .msg .bubble .code-head,
html.light .msg .bubble .code-head {
  background: rgba(0,0,0,.03);
  border-bottom-color: rgba(0,0,0,.08);
  color: rgba(15,23,42,.65);
}
html.theme-light .msg .bubble .code-copy:hover,
html.light .msg .bubble .code-copy:hover {
  background: rgba(0,0,0,.06);
}

.msg .bubble .md-math {
  font-size: 1.05em;
}
.msg .bubble .md-math[data-display="1"] {
  display: block;
  overflow-x: auto;
  margin: .75em 0;
  padding: .25em 0;
  text-align: center;
}
.msg .bubble .md-math .katex-error {
  color: #fca5a5;
  font-size: .9em;
}
.msg .bubble ul ul,
.msg .bubble ol ol,
.msg .bubble ul ol,
.msg .bubble ol ul {
  margin: .2em 0 .35em;
}
.msg .bubble .task-li {
  display: inline-flex;
  gap: .45em;
  align-items: flex-start;
}
.msg .bubble li > .task-li input {
  margin-top: .3em;
}

/* Composer */
.composer {
  padding: .25rem 1rem 1rem;
  background: linear-gradient(transparent, var(--gray-900) 25%);
}
.composer-box {
  width: min(48rem, 100%);
  margin: 0 auto;
  display: flex;
  align-items: flex-end;
  gap: .4rem;
  padding: .55rem .55rem .55rem .55rem;
  background: var(--gray-850);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: 1.75rem;
  box-shadow: 0 2px 16px rgba(0,0,0,.25);
}
.composer-box:focus-within {
  border-color: rgba(255,255,255,.12);
}
.composer textarea {
  flex: 1;
  border: none;
  outline: none;
  resize: none;
  background: transparent;
  color: #eee;
  line-height: 1.45;
  max-height: 12rem;
  min-height: 1.45em;
  padding: .45rem 0;
}
.composer textarea::placeholder { color: var(--gray-500); }
.composer-actions { display: flex; align-items: center; }
.attach-btn { flex-shrink: 0; margin-bottom: .1rem; }
.attach-preview {
  width: min(48rem, 100%);
  margin: 0 auto .45rem;
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
}
.attach-chip {
  display: flex;
  align-items: center;
  gap: .4rem;
  max-width: 100%;
  padding: .35rem .5rem .35rem .35rem;
  background: var(--gray-850);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: .75rem;
  font-size: .78rem;
  color: var(--gray-200);
}
.attach-chip img {
  width: 2.25rem; height: 2.25rem;
  object-fit: cover;
  border-radius: .45rem;
}
.attach-chip .name {
  max-width: 10rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.attach-chip .rm {
  border: none;
  background: transparent;
  color: var(--gray-500);
  font-size: 1rem;
  line-height: 1;
  padding: .15rem .3rem;
  border-radius: .35rem;
}
.attach-chip .rm:hover { color: #f87171; background: rgba(255,255,255,.06); }
.msg-atts {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin-bottom: .4rem;
}
.msg-atts a.att-file {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  padding: .3rem .55rem;
  background: rgba(0,0,0,.25);
  border-radius: .55rem;
  color: #93c5fd;
  text-decoration: none;
  font-size: .8rem;
  max-width: 14rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.msg-atts img.att-img {
  max-width: min(16rem, 70vw);
  max-height: 12rem;
  border-radius: .75rem;
  object-fit: contain;
  background: rgba(0,0,0,.2);
}
.send-btn {
  width: 2.15rem; height: 2.15rem;
  border: none;
  border-radius: 9999px;
  background: #fff;
  color: #000;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.send-btn:hover { background: var(--gray-100); }
.send-btn:disabled { opacity: .4; cursor: not-allowed; }
.disclaimer {
  width: min(48rem, 100%);
  margin: .55rem auto 0;
  text-align: center;
  font-size: .7rem;
  color: var(--gray-500);
}

/* Modal */
.modal {
  position: fixed; inset: 0; z-index: 50;
  display: grid; place-items: center;
  background: rgba(0,0,0,.55);
  padding: 1rem;
}
.modal-card {
  width: min(440px, 100%);
  background: var(--gray-950);
  border: 1px solid var(--gray-850);
  border-radius: 1rem;
  padding: 1.15rem 1.25rem 1.35rem;
}
.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: .75rem;
}
.modal-head h2 { margin: 0; font-size: 1.05rem; font-weight: 600; }
.modal label {
  display: block;
  font-size: .8rem;
  color: var(--gray-400);
  margin: .55rem 0 .3rem;
}
.modal input {
  width: 100%;
  padding: .7rem .9rem;
  border-radius: .75rem;
  border: 1px solid var(--gray-800);
  background: var(--gray-900);
  outline: none;
}
.modal input:focus { border-color: var(--gray-600); }
.hint { font-size: .75rem; color: var(--gray-500); margin: .35rem 0 0; }

.backdrop {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.6);
  z-index: 30;
}

@media (max-width: 768px) {
  .app { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: min(var(--sidebar-w), 88vw);
    z-index: 40;
    transform: translateX(-105%);
    transition: transform .2s ease;
  }
  .sidebar.open { transform: translateX(0); }
  .sb-close { display: grid; }
  #btn-menu { display: grid; }
  .conv-more { opacity: 1; }
}

/* === litewebui-build-10: pinned=chat icon, recents=text only, archived=archive icon === */
.sb-section {
  display: flex !important;
  flex-direction: column !important;
  min-height: 0 !important;
  overflow: hidden !important;
}
.chat-group {
  display: flex;
  flex-direction: column;
  min-width: 0;
  width: 100%;
  min-height: 0;
}
#pinned-block { flex: 0 0 auto; order: 1; }
#recents-block { flex: 1 1 auto; min-height: 0; order: 2; }
#archived-block {
  flex: 0 0 auto;
  order: 3;
  margin-top: auto;
  padding-top: .35rem;
  border-top: 1px solid rgba(255,255,255,.06);
}
.group-toggle {
  display: flex;
  align-items: center;
  gap: .35rem;
  width: 100%;
  border: 0;
  background: transparent;
  color: #9b9b9b;
  padding: .55rem .55rem .35rem .55rem;
  font-size: .78rem;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  border-radius: .5rem;
  flex-shrink: 0;
}
.group-toggle:hover { color: #ececec; }
.group-chev { flex: 0 0 auto; opacity: .75; transition: transform .15s ease; }
.chat-group.is-collapsed .group-chev { transform: rotate(-90deg); }
.chat-group.is-collapsed .group-body { display: none !important; }

.conv-row {
  display: grid !important;
  grid-template-columns: minmax(0, 1fr) 1.85rem !important;
  align-items: center !important;
  width: 100% !important;
  max-width: 100% !important;
  box-sizing: border-box !important;
  min-height: 2.35rem;
  border-radius: .75rem;
  overflow: visible !important;
}
.conv-row:hover,
.conv-row.active { background: rgba(255,255,255,.08); }
.conv-item {
  grid-column: 1 !important;
  display: flex !important;
  align-items: center !important;
  gap: .55rem !important;
  min-width: 0 !important;
  width: 100% !important;
  border: 0 !important;
  background: transparent !important;
  color: #ececec !important;
  text-align: left;
  padding: .5rem .15rem .5rem .7rem !important;
  font-size: .9rem;
  cursor: pointer;
  border-radius: .75rem;
}
.conv-ico-wrap {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 1.15rem;
  height: 1.15rem;
  color: #b4b4b4;
}
.conv-ico-wrap.is-arch { color: #a3a3a3; }
.conv-ico-wrap .status-ico,
.conv-ico-wrap .conv-ico { display: block; }
.conv-title {
  flex: 1 1 auto;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
/* hide old status column if any leftover nodes */
.conv-status { display: none !important; }
.conv-more {
  grid-column: 2 !important;
  width: 1.85rem !important;
  min-width: 1.85rem !important;
  height: 1.85rem !important;
  margin: 0 .15rem 0 0 !important;
  border: 0 !important;
  border-radius: .45rem !important;
  background: transparent !important;
  color: #cfcfcf !important;
  font-size: 1.2rem !important;
  line-height: 1 !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  opacity: 0;
  cursor: pointer !important;
}
.conv-row:hover .conv-more,
.conv-row.active .conv-more,
.conv-more:focus { opacity: 1 !important; }
.conv-more:hover {
  background: rgba(255,255,255,.1) !important;
  color: #fff !important;
}
@media (hover: none) {
  .conv-more { opacity: .85 !important; }
}
.conv-list,
.conv-list-nested {
  overflow-x: hidden !important;
  overflow-y: auto;
  scrollbar-width: thin;
  gap: .15rem;
}
#pinned-list,
#archived-list { flex: 0 1 auto; max-height: 28vh; }
#conv-list { flex: 1 1 auto; min-height: 0; }
.sb-section-title { display: none !important; }
.conv-menu {
  position: fixed !important;
  z-index: 10000 !important;
  min-width: 13.5rem !important;
}

/* === litewebui-build-12: Close/Open sidebar panel control === */
.sb-brand {
  display: flex;
  align-items: center;
  gap: .45rem;
}
.sb-name { flex: 1; min-width: 0; }
/* top-right of sidebar brand = Close sidebar */
.sb-panel-btn {
  flex-shrink: 0 !important;
  width: 2.25rem !important;
  height: 2.25rem !important;
  border-radius: .65rem !important;
  color: var(--gray-400) !important;
  display: grid !important;
  place-items: center !important;
}
.sb-panel-btn:hover {
  background: var(--gray-850) !important;
  color: #fff !important;
}
#btn-sidebar-close {
  display: grid !important; /* desktop + mobile when sidebar visible */
}
/* desktop collapse */
@media (min-width: 769px) {
  #btn-menu { display: none !important; }
  .app.sidebar-collapsed {
    grid-template-columns: 0 1fr !important;
  }
  .app.sidebar-collapsed .sidebar {
    width: 0 !important;
    min-width: 0 !important;
    overflow: hidden !important;
    border-right: none !important;
    opacity: 0;
    pointer-events: none;
  }
  .app.sidebar-collapsed #btn-menu {
    display: grid !important; /* Open sidebar top-left of main */
  }
  .app.sidebar-collapsed .sidebar-backdrop { display: none !important; }
}
@media (max-width: 768px) {
  #btn-menu { display: grid !important; }
  #btn-sidebar-close { display: grid !important; }
}

/* === litewebui-build-14: DeepSeek CDN logo + light/dark + litewebui === */
.ds-logo-img {
  width: 1.75rem;
  height: 1.75rem;
  object-fit: contain;
  display: block;
  border-radius: .35rem;
}
.login-logo .ds-logo-img {
  width: 2.75rem;
  height: 2.75rem;
}
.sb-logo {
  width: 1.75rem !important;
  height: 1.75rem !important;
  border-radius: 0 !important;
  background: transparent !important;
  display: grid !important;
  place-items: center !important;
  overflow: visible !important;
  padding: 0 !important;
}
.sb-name {
  font-weight: 700 !important;
  font-size: 1.05rem !important;
  letter-spacing: -0.02em;
  color: #4D6BFE !important;
  text-transform: lowercase;
}
.empty-avatar {
  overflow: hidden;
  display: grid !important;
  place-items: center;
  padding: 0 !important;
  background: transparent !important;
  border: none !important;
}
.empty-avatar .ds-logo-img {
  width: 2.5rem;
  height: 2.5rem;
}
.empty-title {
  font-weight: 600;
}
#set-theme {
  width: 100%;
  padding: .7rem .9rem;
  border-radius: .75rem;
  border: 1px solid var(--gray-800);
  background: var(--gray-900);
  outline: none;
  margin-bottom: .35rem;
}

/* Light theme */
html.theme-light,
html.light {
  --gray-50: #0d0d0d;
  --gray-100: #171717;
  --gray-200: #3a3a3a;
  --gray-300: #525252;
  --gray-400: #6b6b6b;
  --gray-500: #8a8a8a;
  --gray-600: #a3a3a3;
  --gray-700: #d4d4d4;
  --gray-800: #e5e5e5;
  --gray-850: #f0f0f0;
  --gray-900: #f7f7f8;
  --gray-950: #ffffff;
}
html.theme-light body,
html.light body {
  background: #f7f7f8;
  color: #0d0d0d;
}
html.theme-light .sidebar,
html.light .sidebar {
  background: #f9f9f9 !important;
  border-right-color: rgba(0,0,0,.08) !important;
  color: #333 !important;
}
html.theme-light .sb-name,
html.light .sb-name { color: #4D6BFE !important; }
html.theme-light .login,
html.light .login { background: #f7f7f8; }
html.theme-light .login-card,
html.light .login-card {
  background: #fff;
  border: 1px solid rgba(0,0,0,.08);
  color: #0d0d0d;
}
html.theme-light .main-wrap,
html.light .main-wrap { background: #f7f7f8; }
html.theme-light .navbar,
html.light .navbar {
  background: linear-gradient(to bottom, rgba(247,247,248,.95) 40%, transparent);
}
html.theme-light .composer-box,
html.light .composer-box {
  background: #fff !important;
  border-color: rgba(0,0,0,.1) !important;
}
html.theme-light .messages .bubble,
html.light .msg-assistant .bubble {
  color: #0d0d0d;
}
html.theme-light .conv-row:hover,
html.theme-light .conv-row.active,
html.light .conv-row:hover,
html.light .conv-row.active {
  background: rgba(0,0,0,.06) !important;
}
html.theme-light .conv-item,
html.light .conv-item { color: #1a1a1a !important; }
html.theme-light .group-toggle,
html.light .group-toggle { color: #6b6b6b; }
html.theme-light .modal-card,
html.light .modal-card {
  background: #fff;
  color: #0d0d0d;
  border: 1px solid rgba(0,0,0,.08);
}
html.theme-light #set-theme,
html.theme-light .modal input,
html.light #set-theme,
html.light .modal input {
  background: #f7f7f8;
  border-color: #e5e5e5;
  color: #0d0d0d;
}
html.theme-light .model-selector select,
html.light .model-selector select { color: #0d0d0d; }
html.theme-light .icon-btn:hover,
html.light .icon-btn:hover {
  background: rgba(0,0,0,.06);
  color: #0d0d0d;
}
html.theme-light .sb-action:hover,
html.light .sb-action:hover {
  background: rgba(0,0,0,.06);
  color: #0d0d0d;
}
html.theme-light .user-row,
html.light .user-row { color: #1a1a1a; }
html.theme-light .conv-menu,
html.light .conv-menu {
  background: #fff !important;
  border-color: rgba(0,0,0,.1) !important;
  color: #0d0d0d;
}
html.theme-light .conv-menu button,
html.light .conv-menu button { color: #1a1a1a !important; }
html.theme-light .conv-menu button:hover,
html.light .conv-menu button:hover { background: rgba(0,0,0,.06) !important; }
html.theme-light .disclaimer,
html.light .disclaimer { color: #8a8a8a; }

/* === litewebui-build-16: DeepSeek-style New chat pill (no Ctrl+J) === */
.sb-new-chat {
  display: flex !important;
  align-items: center !important;
  justify-content: flex-start !important;
  gap: .55rem !important;
  width: 100% !important;
  margin: .15rem .15rem .55rem !important;
  padding: .65rem .95rem !important;
  border: 1px solid rgba(255,255,255,.1) !important;
  border-radius: 9999px !important;
  background: rgba(255,255,255,.06) !important;
  color: #ececec !important;
  font-size: .92rem !important;
  font-weight: 500 !important;
  box-shadow: none !important;
  cursor: pointer !important;
}
.sb-new-chat:hover {
  background: rgba(255,255,255,.1) !important;
  border-color: rgba(255,255,255,.14) !important;
  color: #fff !important;
}
.sb-new-ico {
  flex: 0 0 auto;
  opacity: .95;
}
html.theme-light .sb-new-chat,
html.light .sb-new-chat {
  background: #fff !important;
  border: 1px solid rgba(0,0,0,.1) !important;
  color: #1a1a1a !important;
  box-shadow: 0 1px 2px rgba(0,0,0,.04) !important;
}
html.theme-light .sb-new-chat:hover,
html.light .sb-new-chat:hover {
  background: #f5f5f5 !important;
  border-color: rgba(0,0,0,.14) !important;
}

/* === litewebui-build-17: DeepSeek-like Settings (General + API) === */
.modal-card.settings-card {
  width: min(720px, 100%) !important;
  max-height: min(86vh, 640px);
  padding: 1.1rem 1.15rem 1.25rem !important;
  display: flex;
  flex-direction: column;
  border-radius: 1.15rem !important;
}
.settings-layout {
  display: grid;
  grid-template-columns: 10.5rem 1fr;
  gap: 1rem;
  min-height: 0;
  flex: 1;
}
.settings-nav {
  display: flex;
  flex-direction: column;
  gap: .25rem;
  padding-right: .25rem;
  border-right: 1px solid rgba(255,255,255,.06);
}
.settings-nav-btn {
  display: flex;
  align-items: center;
  gap: .55rem;
  width: 100%;
  border: 0;
  background: transparent;
  color: var(--gray-300);
  text-align: left;
  padding: .6rem .7rem;
  border-radius: .75rem;
  font-size: .9rem;
  cursor: pointer;
}
.settings-nav-btn:hover { background: rgba(255,255,255,.06); color: #fff; }
.settings-nav-btn.active {
  background: rgba(255,255,255,.1);
  color: #fff;
  font-weight: 500;
}
.settings-panels {
  min-width: 0;
  overflow: auto;
  padding: .15rem .15rem .5rem .25rem;
}
.settings-field-label {
  font-size: .9rem;
  font-weight: 500;
  color: var(--gray-300);
  margin: .15rem 0 .75rem;
}
.theme-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .75rem;
}
.theme-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  min-height: 5.5rem;
  padding: .9rem .5rem;
  border-radius: .9rem;
  border: 1px solid rgba(255,255,255,.1);
  background: rgba(255,255,255,.03);
  color: var(--gray-300);
  cursor: pointer;
  font-size: .9rem;
}
.theme-card:hover {
  border-color: rgba(255,255,255,.18);
  background: rgba(255,255,255,.06);
  color: #fff;
}
.theme-card.active {
  border-color: #4D6BFE;
  background: rgba(77,107,254,.12);
  color: #fff;
  box-shadow: 0 0 0 1px rgba(77,107,254,.35);
}
#panel-api .form-actions {
  display: flex;
  gap: .5rem;
  flex-wrap: wrap;
  margin-top: .9rem;
}
#panel-api label {
  display: block;
  font-size: .8rem;
  color: var(--gray-400);
  margin: .55rem 0 .3rem;
}
#panel-api input {
  width: 100%;
  padding: .7rem .9rem;
  border-radius: .75rem;
  border: 1px solid var(--gray-800);
  background: var(--gray-900);
  outline: none;
}

/* light overrides for settings */
html.theme-light .settings-nav,
html.light .settings-nav {
  border-right-color: rgba(0,0,0,.08);
}
html.theme-light .settings-nav-btn,
html.light .settings-nav-btn { color: #444; }
html.theme-light .settings-nav-btn:hover,
html.light .settings-nav-btn:hover {
  background: rgba(0,0,0,.05);
  color: #0d0d0d;
}
html.theme-light .settings-nav-btn.active,
html.light .settings-nav-btn.active {
  background: rgba(0,0,0,.07);
  color: #0d0d0d;
}
html.theme-light .theme-card,
html.light .theme-card {
  border-color: rgba(0,0,0,.1);
  background: #f5f5f7;
  color: #333;
}
html.theme-light .theme-card:hover,
html.light .theme-card:hover {
  background: #eeeef0;
  color: #0d0d0d;
}
html.theme-light .theme-card.active,
html.light .theme-card.active {
  border-color: #4D6BFE;
  background: rgba(77,107,254,.1);
  color: #0d0d0d;
}
html.theme-light .settings-field-label,
html.light .settings-field-label { color: #333; }
html.theme-light .modal-card.settings-card,
html.light .modal-card.settings-card {
  background: #fff;
  border-color: rgba(0,0,0,.08);
}

@media (max-width: 640px) {
  .settings-layout {
    grid-template-columns: 1fr;
  }
  .settings-nav {
    flex-direction: row;
    border-right: 0;
    border-bottom: 1px solid rgba(255,255,255,.06);
    padding-bottom: .5rem;
    overflow-x: auto;
  }
  .settings-nav-btn { white-space: nowrap; }
  .theme-cards { grid-template-columns: 1fr; }
}

/* === litewebui-build-20: responsive desktop/mobile shell === */
:root {
  --sidebar-w: clamp(240px, 22vw, 300px);
  --composer-max: min(48rem, 100%);
  --nav-h: 3rem;
  --safe-b: env(safe-area-inset-bottom, 0px);
  --safe-t: env(safe-area-inset-top, 0px);
  --safe-l: env(safe-area-inset-left, 0px);
  --safe-r: env(safe-area-inset-right, 0px);
}

html, body {
  height: 100%;
  height: 100dvh;
  overflow: hidden;
  overscroll-behavior: none;
}
body {
  padding:
    var(--safe-t)
    var(--safe-r)
    var(--safe-b)
    var(--safe-l);
}

.app {
  height: 100%;
  height: 100dvh;
  max-height: 100dvh;
  width: 100%;
  min-width: 0;
  transition: grid-template-columns .2s ease;
}

.main-wrap {
  min-width: 0 !important;
  min-height: 0 !important;
  display: flex !important;
  flex-direction: column !important;
  height: 100% !important;
  max-height: 100% !important;
  overflow: hidden !important;
  position: relative;
}

.navbar {
  flex: 0 0 auto !important;
  min-height: var(--nav-h);
  padding-left: max(.5rem, var(--safe-l)) !important;
  padding-right: max(.5rem, var(--safe-r)) !important;
}

.messages {
  flex: 1 1 auto !important;
  min-height: 0 !important;
  overflow-x: hidden !important;
  overflow-y: auto !important;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  padding-bottom: .5rem !important;
  scroll-padding-bottom: 1rem;
}

.composer {
  flex: 0 0 auto !important;
  width: 100% !important;
  padding: .35rem .75rem calc(.55rem + var(--safe-b)) !important;
  background: linear-gradient(to top, var(--gray-900) 70%, transparent) !important;
}

.composer-box {
  width: var(--composer-max) !important;
  max-width: 100% !important;
  margin: 0 auto !important;
}

.composer textarea {
  max-height: min(40vh, 12rem) !important;
  font-size: 16px !important; /* avoid iOS zoom */
}

.sidebar {
  min-height: 0;
  max-height: 100%;
  overflow: hidden;
}

.sb-section {
  flex: 1 1 auto !important;
  min-height: 0 !important;
}

.msg .inner,
.msg-inner,
.messages .msg {
  max-width: 100%;
}
.msg .bubble,
.bubble {
  max-width: min(48rem, 100%);
  overflow-wrap: anywhere;
  word-break: break-word;
}
.msg pre, .bubble pre {
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.msg img, .bubble img, .att-img {
  max-width: min(100%, 22rem) !important;
  height: auto !important;
}

.login-card {
  width: min(400px, 100%);
  margin: auto;
}

.model-selector select {
  max-width: min(100%, 16rem);
  text-overflow: ellipsis;
}

/* Desktop refinements */
@media (min-width: 769px) {
  #btn-menu { display: none !important; }
  #btn-sidebar-close { display: grid !important; }

  .app.sidebar-collapsed {
    grid-template-columns: 0 1fr !important;
  }
  .app.sidebar-collapsed .sidebar {
    width: 0 !important;
    min-width: 0 !important;
    opacity: 0;
    pointer-events: none;
    overflow: hidden !important;
    border-right: none !important;
  }
  .app.sidebar-collapsed #btn-menu {
    display: grid !important;
  }

  .navbar { padding-top: .45rem; }
  .composer { padding-bottom: .75rem !important; }
}

/* Tablet */
@media (max-width: 1024px) and (min-width: 769px) {
  :root { --sidebar-w: 240px; }
  .settings-layout { grid-template-columns: 9rem 1fr; }
}

/* Mobile shell */
@media (max-width: 768px) {
  :root { --sidebar-w: min(300px, 86vw); }

  .app {
    grid-template-columns: 1fr !important;
  }

  /* ignore desktop collapsed class on mobile */
  .app.sidebar-collapsed {
    grid-template-columns: 1fr !important;
  }
  .app.sidebar-collapsed .sidebar {
    width: var(--sidebar-w) !important;
    opacity: 1;
    pointer-events: auto;
  }

  .sidebar {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    bottom: 0 !important;
    width: var(--sidebar-w) !important;
    max-width: 100vw !important;
    z-index: 50 !important;
    transform: translateX(-105%) !important;
    transition: transform .22s ease !important;
    box-shadow: none;
    padding-top: var(--safe-t);
    padding-bottom: var(--safe-b);
    background: var(--gray-950) !important;
  }
  .sidebar.open {
    transform: translateX(0) !important;
    box-shadow: 8px 0 32px rgba(0,0,0,.45);
  }

  #btn-menu {
    display: grid !important;
    flex-shrink: 0;
  }
  #btn-sidebar-close {
    display: grid !important;
  }

  .backdrop {
    z-index: 45 !important;
  }

  .navbar {
    gap: .25rem !important;
    padding: .35rem .45rem !important;
  }
  .model-selector {
    flex: 1 1 auto;
    min-width: 0;
  }
  .model-selector select {
    width: 100%;
    max-width: none;
    font-size: .95rem;
  }

  .messages {
    padding-left: .65rem !important;
    padding-right: .65rem !important;
  }

  .empty-inner {
    padding: 1rem .75rem !important;
  }
  .empty-title {
    font-size: clamp(1.15rem, 5vw, 1.5rem) !important;
  }

  .composer {
    padding: .25rem .55rem calc(.4rem + var(--safe-b)) !important;
  }
  .composer-box {
    border-radius: 1.25rem !important;
    padding: .35rem .45rem .35rem .55rem !important;
  }
  .composer textarea {
    font-size: 16px !important;
    min-height: 1.4rem;
  }

  .conv-more {
    opacity: .85 !important; /* touch: always reachable */
  }

  .modal {
    padding: .5rem !important;
    align-items: flex-end !important;
  }
  .modal-card,
  .modal-card.settings-card {
    width: 100% !important;
    max-width: 100% !important;
    max-height: min(92dvh, 100%) !important;
    border-radius: 1rem 1rem .75rem .75rem !important;
    margin: 0 !important;
  }
  .settings-layout {
    grid-template-columns: 1fr !important;
    gap: .65rem !important;
  }
  .settings-nav {
    flex-direction: row !important;
    flex-wrap: nowrap !important;
    overflow-x: auto !important;
    border-right: 0 !important;
    border-bottom: 1px solid rgba(255,255,255,.08) !important;
    padding-bottom: .45rem !important;
    gap: .35rem !important;
    -webkit-overflow-scrolling: touch;
  }
  .settings-nav-btn {
    flex: 0 0 auto;
    white-space: nowrap;
  }
  .theme-cards {
    grid-template-columns: 1fr !important;
  }
  html.theme-light .settings-nav,
  html.light .settings-nav {
    border-bottom-color: rgba(0,0,0,.08) !important;
  }

  .login {
    padding: 1rem !important;
    align-content: center;
  }
  .login-card {
    width: 100%;
    padding: 1.25rem 1rem !important;
  }

  .sb-name {
    font-size: 1rem !important;
  }
  .sb-new-chat {
    margin-left: .35rem !important;
    margin-right: .35rem !important;
  }
}

/* Small phones */
@media (max-width: 380px) {
  :root { --sidebar-w: 92vw; }
  .theme-card { min-height: 4.5rem; }
  .navbar .icon-btn { width: 2.1rem; height: 2.1rem; }
}

/* Large desktop */
@media (min-width: 1400px) {
  :root {
    --sidebar-w: 300px;
    --composer-max: min(52rem, 100%);
  }
}

/* Prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
  .sidebar,
  .app {
    transition: none !important;
  }
}

/* Touch targets */
@media (pointer: coarse) {
  .icon-btn,
  .sb-panel-btn,
  .conv-more,
  .settings-nav-btn,
  .theme-card,
  .sb-new-chat {
    min-height: 2.5rem;
  }
  .conv-row {
    min-height: 2.65rem !important;
  }
}

/* Landscape phones: keep composer usable */
@media (max-height: 480px) and (orientation: landscape) {
  .empty-sub { display: none; }
  .composer textarea { max-height: 4.5rem !important; }
  .modal-card.settings-card { max-height: 96dvh !important; }
}

/* === litewebui-build-21: audit fixes responsive polish === */
/* avoid double bottom padding: safe-area only on shell edges */
body {
  /* keep safe area from build-20 */
}
/* ensure messages don't sit under fixed mobile UI */
@media (max-width: 768px) {
  .main-wrap {
    height: 100% !important;
    max-height: 100% !important;
  }
  /* backdrop must not block when hidden */
  .backdrop.hidden { pointer-events: none !important; }
  .sidebar {
    will-change: transform;
  }
  /* prevent iOS overscroll chaining */
  .messages, .sb-section, .conv-list, .settings-panels {
    overscroll-behavior: contain;
  }
}
/* desktop: smooth sidebar width */
@media (min-width: 769px) {
  .sidebar {
    transition: opacity .15s ease;
  }
}

/* === litewebui-build-22: delete confirm dialog === */
.confirm-modal {
  z-index: 80 !important;
  background: rgba(0, 0, 0, 0.45) !important;
}
.confirm-card {
  width: min(22rem, calc(100vw - 2rem)) !important;
  padding: 1.15rem 1.2rem 1.05rem !important;
  border-radius: 1rem !important;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.28) !important;
  border: 1px solid rgba(255, 255, 255, 0.08) !important;
  background: var(--gray-950) !important;
}
.confirm-title {
  margin: 0 0 0.45rem;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.35;
  color: #f3f3f3;
}
.confirm-sub {
  margin: 0 0 1.1rem;
  font-size: 0.9rem;
  line-height: 1.4;
  color: var(--gray-400);
}
.confirm-actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 0.55rem;
}
.btn-confirm-cancel {
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: transparent;
  color: #e8e8e8;
  border-radius: 9999px;
  padding: 0.45rem 1rem;
  font-size: 0.9rem;
  font-weight: 500;
  min-height: 2.25rem;
}
.btn-confirm-cancel:hover {
  background: rgba(255, 255, 255, 0.06);
}
.btn-confirm-danger {
  border: none;
  background: #ef4444;
  color: #fff;
  border-radius: 9999px;
  padding: 0.45rem 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  min-height: 2.25rem;
}
.btn-confirm-danger:hover {
  background: #dc2626;
}
.btn-confirm-primary {
  border: none;
  background: #4d6bfe;
  color: #fff;
  border-radius: 9999px;
  padding: 0.45rem 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  min-height: 2.25rem;
}
.btn-confirm-primary:hover {
  background: #3b5bdb;
}
.confirm-input {
  display: block;
  width: 100%;
  box-sizing: border-box;
  margin: 0 0 1.1rem;
  padding: 0.55rem 0.75rem;
  border-radius: 0.65rem;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.06);
  color: #f3f3f3;
  font-size: 0.95rem;
  outline: none;
}
.confirm-input:focus {
  border-color: #4d6bfe;
  box-shadow: 0 0 0 3px rgba(77, 107, 254, 0.25);
}
.confirm-input.hidden {
  display: none;
}
.btn-confirm-danger:focus-visible,
.btn-confirm-primary:focus-visible,
.btn-confirm-cancel:focus-visible {
  outline: 2px solid #4d6bfe;
  outline-offset: 2px;
}

html.theme-light .confirm-input,
html.light .confirm-input {
  background: #f5f5f5;
  border-color: rgba(0, 0, 0, 0.12);
  color: #111;
}

html.theme-light .confirm-card,
html.light .confirm-card {
  background: #fff !important;
  border-color: rgba(0, 0, 0, 0.08) !important;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12) !important;
}
html.theme-light .confirm-title,
html.light .confirm-title {
  color: #111;
}
html.theme-light .confirm-sub,
html.light .confirm-sub {
  color: #6b6b6b;
}
html.theme-light .btn-confirm-cancel,
html.light .btn-confirm-cancel {
  border-color: rgba(0, 0, 0, 0.14);
  color: #222;
}
html.theme-light .btn-confirm-cancel:hover,
html.light .btn-confirm-cancel:hover {
  background: rgba(0, 0, 0, 0.04);
}

@media (max-width: 768px) {
  .confirm-modal {
    align-items: center !important;
    padding: 1rem !important;
  }
  .confirm-card {
    width: min(22rem, 100%) !important;
    border-radius: 1rem !important;
  }
}

/* === litewebui-build-23: auto text contrast light/dark === */
:root {
  --text-primary: #f3f3f3;
  --text-secondary: #a3a3a3;
  --text-muted: #8a8a8a;
}
html.theme-dark,
html.dark {
  --text-primary: #f3f3f3;
  --text-secondary: #a3a3a3;
  --text-muted: #8a8a8a;
}
html.theme-light,
html.light {
  --text-primary: #111111;
  --text-secondary: #4b4b4b;
  --text-muted: #6b6b6b;
}

/* Empty hero: dark = white, light = black */
.empty-title {
  color: var(--text-primary) !important;
  opacity: 1 !important;
  -webkit-text-fill-color: var(--text-primary) !important;
}
.empty-sub {
  color: var(--text-secondary) !important;
  opacity: 1 !important;
}
html.theme-dark .empty-title,
html.dark .empty-title {
  color: #ffffff !important;
  -webkit-text-fill-color: #ffffff !important;
}
html.theme-light .empty-title,
html.light .empty-title {
  color: #111111 !important;
  -webkit-text-fill-color: #111111 !important;
}
html.theme-dark .empty-sub,
html.dark .empty-sub {
  color: #b4b4b4 !important;
}
html.theme-light .empty-sub,
html.light .empty-sub {
  color: #555555 !important;
}

/* Navbar model name */
html.theme-light .model-selector select,
html.light .model-selector select {
  color: #111111 !important;
}
html.theme-dark .model-selector select,
html.dark .model-selector select {
  color: #f3f3f3 !important;
}

/* Chat message text */
html.theme-light .msg .bubble,
html.light .msg .bubble,
html.theme-light .msg .role,
html.light .msg .role {
  color: #111111 !important;
}
html.theme-dark .msg .bubble,
html.dark .msg .bubble {
  color: #ececec !important;
}
html.theme-light .msg .bubble a,
html.light .msg .bubble a {
  color: #2563eb !important;
}

/* Composer text */
html.theme-light .composer textarea,
html.light .composer textarea {
  color: #111111 !important;
}
html.theme-light .composer textarea::placeholder,
html.light .composer textarea::placeholder {
  color: #8a8a8a !important;
}
html.theme-dark .composer textarea,
html.dark .composer textarea {
  color: #f3f3f3 !important;
}

/* Sidebar list text already handled; reinforce */
html.theme-light .sb-section,
html.light .sb-section {
  color: #1a1a1a;
}
html.theme-light .user-name,
html.light .user-name {
  color: #111 !important;
}
html.theme-light .user-role,
html.light .user-role,
html.theme-light .sb-logout,
html.light .sb-logout {
  color: #555 !important;
}
html.theme-light .disclaimer,
html.light .disclaimer {
  color: #8a8a8a !important;
}

/* Group labels Recents/Pinned */
html.theme-light .group-label,
html.light .group-label {
  color: #555 !important;
}
html.theme-dark .group-label,
html.dark .group-label {
  color: #9b9b9b !important;
}

/* === litewebui-build-25: message actions copy/edit/regenerate === */
.msg-col.user-col {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  max-width: 90%;
  gap: .35rem;
}
.msg.user .bubble {
  max-width: 100%;
}
.msg-actions {
  display: flex;
  align-items: center;
  gap: .15rem;
  opacity: 0;
  transition: opacity .15s ease;
  margin-top: .15rem;
}
.msg.user .msg-actions {
  justify-content: flex-end;
}
.msg.assistant .msg-actions {
  justify-content: flex-start;
  margin-top: .4rem;
}
.msg:hover .msg-actions,
.msg:focus-within .msg-actions,
.msg-actions:hover {
  opacity: 1;
}
@media (pointer: coarse) {
  .msg-actions { opacity: 1; }
}
.msg-act {
  display: grid;
  place-items: center;
  width: 1.85rem;
  height: 1.85rem;
  border: 0;
  border-radius: .5rem;
  background: transparent;
  color: var(--gray-400);
  cursor: pointer;
  padding: 0;
}
.msg-act:hover {
  background: rgba(255,255,255,.08);
  color: #fff;
}
.msg-act.copied {
  color: #4ade80;
}
html.theme-light .msg-act,
html.light .msg-act {
  color: #6b6b6b;
}
html.theme-light .msg-act:hover,
html.light .msg-act:hover {
  background: rgba(0,0,0,.06);
  color: #111;
}

.msg-editor {
  width: min(36rem, 100%);
  display: flex;
  flex-direction: column;
  gap: .55rem;
}
.msg-edit-ta {
  width: 100%;
  min-height: 5rem;
  resize: vertical;
  border-radius: 1rem;
  border: 1px solid rgba(255,255,255,.12);
  background: var(--gray-900);
  color: #f3f3f3;
  padding: .75rem 1rem;
  font: inherit;
  line-height: 1.5;
  outline: none;
}
.msg-edit-ta:focus {
  border-color: #4D6BFE;
}
html.theme-light .msg-edit-ta,
html.light .msg-edit-ta {
  background: #fff;
  border-color: rgba(0,0,0,.12);
  color: #111;
}
.msg-edit-actions {
  display: flex;
  justify-content: flex-end;
  gap: .5rem;
}
.btn-edit-cancel,
.btn-edit-save {
  border-radius: 9999px;
  padding: .4rem .95rem;
  font-size: .88rem;
  font-weight: 500;
  border: 1px solid rgba(255,255,255,.14);
  cursor: pointer;
}
.btn-edit-cancel {
  background: transparent;
  color: #ddd;
}
.btn-edit-save {
  border: none;
  background: #4D6BFE;
  color: #fff;
}
.btn-edit-save:hover { filter: brightness(1.08); }
.btn-edit-save:disabled { opacity: .5; cursor: not-allowed; }
html.theme-light .btn-edit-cancel,
html.light .btn-edit-cancel {
  border-color: rgba(0,0,0,.12);
  color: #333;
}

/* === litewebui-build-26: light mode controls contrast === */
/* Model <select> dropdown options */
html.theme-light .model-selector select,
html.light .model-selector select {
  color: #111111 !important;
  background: #ffffff !important;
  border-color: rgba(0, 0, 0, 0.12) !important;
}
html.theme-light .model-selector select option,
html.light .model-selector select option {
  color: #111111 !important;
  background: #ffffff !important;
}
html.theme-dark .model-selector select option,
html.dark .model-selector select option {
  color: #f3f3f3 !important;
  background: #171717 !important;
}

/* Settings API buttons */
html.theme-light .btn-secondary,
html.light .btn-secondary,
html.theme-light #btn-test-conn,
html.light #btn-test-conn {
  color: #111111 !important;
  border: 1px solid rgba(0, 0, 0, 0.18) !important;
  background: #ffffff !important;
}
html.theme-light .btn-secondary:hover,
html.light .btn-secondary:hover,
html.theme-light #btn-test-conn:hover,
html.light #btn-test-conn:hover {
  background: #f3f3f3 !important;
  color: #000 !important;
}
html.theme-light .btn-primary,
html.light .btn-primary {
  background: #111111 !important;
  color: #ffffff !important;
  border: none !important;
}
html.theme-light .btn-primary:hover,
html.light .btn-primary:hover {
  background: #2a2a2a !important;
  color: #fff !important;
}

/* Settings inputs light */
html.theme-light #panel-api input,
html.light #panel-api input,
html.theme-light .modal input,
html.light .modal input {
  color: #111111 !important;
  background: #f7f7f8 !important;
  border-color: rgba(0, 0, 0, 0.12) !important;
}
html.theme-light #panel-api input::placeholder,
html.light #panel-api input::placeholder,
html.theme-light .modal input::placeholder,
html.light .modal input::placeholder {
  color: #8a8a8a !important;
}
html.theme-light #panel-api label,
html.light #panel-api label,
html.theme-light .modal label,
html.light .modal label,
html.theme-light .hint,
html.light .hint {
  color: #555555 !important;
}
html.theme-light .icon-btn,
html.light .icon-btn {
  color: #333 !important;
}
html.theme-light #btn-settings-close,
html.light #btn-settings-close {
  color: #333 !important;
}

/* === litewebui-build-27: DeepSeek / ChatGPT polish === */


:root {
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --radius-lg: 1.5rem;
  --radius-md: 1rem;
  --chat-max: min(48rem, 100%);
  --accent: #4d6bfe;
  --user-bubble-dark: #2f2f2f;
  --user-bubble-light: #e8eefc;
  --composer-shadow: 0 0 0 1px rgba(0,0,0,.04), 0 8px 28px rgba(0,0,0,.08);
}

body {
  letter-spacing: -0.01em;
}

/* Sidebar — softer DS */
.sidebar {
  background: #f7f7f8 !important;
  border-right: 1px solid rgba(0,0,0,.06) !important;
}
html.theme-dark .sidebar,
html.dark .sidebar {
  background: #171717 !important;
  border-right-color: rgba(255,255,255,.06) !important;
}
.sb-brand {
  padding: .55rem .55rem .35rem !important;
}
.sb-name {
  font-weight: 600 !important;
  font-size: 1.05rem !important;
  letter-spacing: -0.02em;
}
.sb-new-chat {
  margin: .35rem .65rem .75rem !important;
  padding: .7rem 1rem !important;
  font-weight: 500 !important;
  box-shadow: 0 1px 2px rgba(0,0,0,.04) !important;
  transition: background .15s ease, border-color .15s ease, transform .12s ease !important;
}
.sb-new-chat:active { transform: scale(.99); }
.group-toggle {
  padding: .45rem .7rem !important;
  font-size: .75rem !important;
  font-weight: 500 !important;
  letter-spacing: .02em;
  text-transform: none !important;
  opacity: .85;
}
.conv-row {
  margin: .1rem .4rem !important;
  border-radius: .75rem !important;
  transition: background .12s ease !important;
}
.conv-item {
  font-size: .9rem !important;
  font-weight: 450 !important;
  padding: .55rem .55rem !important;
}
.user-row {
  border-radius: .85rem !important;
  margin: .25rem .4rem !important;
  transition: background .12s ease !important;
}
.user-av {
  background: linear-gradient(135deg, #4d6bfe, #7b8cff) !important;
  color: #fff !important;
  font-weight: 600 !important;
}

/* Main canvas */
html.theme-light .main-wrap,
html.light .main-wrap {
  background: #f3f5f7 !important;
}
html.theme-dark .main-wrap,
html.dark .main-wrap {
  background: #212121 !important;
}
html.theme-light body,
html.light body {
  background: #f3f5f7 !important;
}
html.theme-dark body,
html.dark body {
  background: #212121 !important;
}

.navbar {
  padding: .65rem 1rem .25rem !important;
  background: transparent !important;
}
.model-selector select {
  font-size: 1.02rem !important;
  font-weight: 600 !important;
  letter-spacing: -0.02em;
  padding: .4rem 1.8rem .4rem .35rem !important;
  border-radius: .75rem !important;
  transition: background .12s ease !important;
}
.model-selector select:hover {
  background-color: rgba(127,127,127,.1) !important;
}

/* Empty hero — centered like ChatGPT/DeepSeek */
.empty {
  min-height: 100% !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  padding: 2rem 1rem 6rem !important;
}
.empty-inner {
  width: min(40rem, 100%) !important;
  text-align: center !important;
  padding: 0 1rem !important;
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  gap: .35rem !important;
}
.empty-hero {
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: .75rem !important;
  margin-bottom: .15rem !important;
}
.empty-avatar {
  width: 2.75rem !important;
  height: 2.75rem !important;
  border-radius: 9999px !important;
  background: #fff !important;
  box-shadow: 0 2px 10px rgba(0,0,0,.06) !important;
  overflow: hidden !important;
}
.empty-avatar .ds-logo-img {
  width: 1.55rem !important;
  height: 1.55rem !important;
  object-fit: contain !important;
}
.empty-title {
  font-size: clamp(1.55rem, 3.5vw, 2rem) !important;
  font-weight: 600 !important;
  letter-spacing: -0.03em !important;
  margin: 0 !important;
}
.empty-sub {
  margin: .15rem 0 0 !important;
  margin-left: 0 !important;
  font-size: 1.02rem !important;
  font-weight: 400 !important;
  color: #6b7280 !important;
  max-width: 28rem;
}
html.theme-dark .empty-sub,
html.dark .empty-sub {
  color: #9ca3af !important;
}
html.theme-dark .empty-avatar,
html.dark .empty-avatar {
  background: #2a2a2a !important;
  box-shadow: none !important;
}

/* Messages — more air */
.messages {
  padding: 1rem 0 1.5rem !important;
}
.msg {
  padding: .85rem 0 !important;
}
.msg-inner {
  width: var(--chat-max) !important;
  padding: 0 1.25rem !important;
}
.msg.user .bubble {
  max-width: min(85%, 36rem) !important;
  border-radius: 1.35rem !important;
  padding: .7rem 1.1rem !important;
  font-size: .97rem !important;
  line-height: 1.55 !important;
  box-shadow: none !important;
  background: var(--user-bubble-dark) !important;
  color: #f5f5f5 !important;
}
html.theme-light .msg.user .bubble,
html.light .msg.user .bubble {
  background: #dbe4ff !important;
  color: #0f172a !important;
}
.msg.assistant .avatar {
  width: 1.85rem !important;
  height: 1.85rem !important;
  background: transparent !important;
  font-size: 0 !important;
  color: transparent !important;
  position: relative;
}
.msg.assistant .avatar::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 9999px;
  background: url("/favicon.svg") center/70% no-repeat;
  background-color: #fff;
  box-shadow: 0 0 0 1px rgba(0,0,0,.06);
}
html.theme-dark .msg.assistant .avatar::after,
html.dark .msg.assistant .avatar::after {
  background-color: #2a2a2a;
  box-shadow: none;
}
.msg.assistant .role {
  font-size: .82rem !important;
  font-weight: 600 !important;
  letter-spacing: -0.01em;
  color: inherit !important;
  opacity: .9;
  margin-bottom: .2rem !important;
}
.msg.assistant .bubble {
  font-size: .98rem !important;
  line-height: 1.7 !important;
  color: inherit !important;
}
.msg .bubble pre {
  border-radius: .85rem !important;
  padding: .85rem 1rem !important;
  font-size: .84rem !important;
  border: 1px solid rgba(127,127,127,.18) !important;
}
html.theme-light .msg .bubble pre,
html.light .msg .bubble pre {
  background: #f8fafc !important;
  color: #0f172a !important;
}
html.theme-dark .msg .bubble pre,
html.dark .msg .bubble pre {
  background: #0f0f0f !important;
}

/* Composer — ChatGPT / DeepSeek floating pill */
.composer {
  padding: .35rem 1rem calc(.85rem + env(safe-area-inset-bottom, 0px)) !important;
  background: transparent !important;
}
html.theme-light .composer,
html.light .composer {
  background: linear-gradient(to top, #f3f5f7 55%, transparent) !important;
}
html.theme-dark .composer,
html.dark .composer {
  background: linear-gradient(to top, #212121 55%, transparent) !important;
}
.composer-box {
  width: var(--chat-max) !important;
  display: grid !important;
  grid-template-columns: auto 1fr auto !important;
  align-items: end !important;
  gap: .35rem !important;
  padding: .55rem .55rem .55rem .65rem !important;
  border-radius: 1.65rem !important;
  border: 1px solid rgba(0,0,0,.08) !important;
  background: #ffffff !important;
  box-shadow: var(--composer-shadow) !important;
  transition: box-shadow .15s ease, border-color .15s ease !important;
}
.composer-box:focus-within {
  border-color: rgba(77,107,254,.35) !important;
  box-shadow: 0 0 0 3px rgba(77,107,254,.12), var(--composer-shadow) !important;
}
html.theme-dark .composer-box,
html.dark .composer-box {
  background: #2f2f2f !important;
  border-color: rgba(255,255,255,.08) !important;
  box-shadow: 0 4px 24px rgba(0,0,0,.35) !important;
}
html.theme-dark .composer-box:focus-within,
html.dark .composer-box:focus-within {
  border-color: rgba(77,107,254,.45) !important;
}
.composer textarea {
  font-size: 1rem !important;
  line-height: 1.5 !important;
  padding: .55rem .25rem !important;
  min-height: 1.5em !important;
  max-height: 12rem !important;
}
html.theme-light .composer textarea,
html.light .composer textarea {
  color: #111 !important;
}
html.theme-dark .composer textarea,
html.dark .composer textarea {
  color: #f3f3f3 !important;
}
.composer textarea::placeholder {
  color: #9ca3af !important;
}
.attach-btn {
  width: 2.25rem !important;
  height: 2.25rem !important;
  border-radius: 9999px !important;
  color: #6b7280 !important;
  margin: 0 0 .1rem !important;
}
.attach-btn:hover {
  background: rgba(127,127,127,.12) !important;
  color: #111 !important;
}
html.theme-dark .attach-btn:hover {
  color: #fff !important;
}
.send-btn {
  width: 2.25rem !important;
  height: 2.25rem !important;
  border-radius: 9999px !important;
  background: #0d0d0d !important;
  color: #fff !important;
  display: grid !important;
  place-items: center !important;
  border: none !important;
  transition: transform .12s ease, background .12s ease, opacity .12s ease !important;
  margin: 0 0 .05rem !important;
}
.send-btn:hover {
  background: #1f1f1f !important;
  transform: scale(1.04);
}
.send-btn:disabled {
  opacity: .35 !important;
  cursor: not-allowed !important;
  transform: none !important;
}
html.theme-dark .send-btn,
html.dark .send-btn {
  background: #fff !important;
  color: #0d0d0d !important;
}
html.theme-dark .send-btn:hover,
html.dark .send-btn:hover {
  background: #e8e8e8 !important;
}
.disclaimer {
  margin-top: .55rem !important;
  font-size: .72rem !important;
  color: #9ca3af !important;
}

/* Message actions always soft */
.msg-actions {
  opacity: .55 !important;
}
.msg:hover .msg-actions {
  opacity: 1 !important;
}

/* Settings modal softer */
.modal-card {
  border-radius: 1.25rem !important;
  box-shadow: 0 20px 50px rgba(0,0,0,.18) !important;
}
html.theme-light .modal-card.settings-card,
html.light .modal-card.settings-card {
  border: 1px solid rgba(0,0,0,.06) !important;
}

/* Scrollbar subtle */
.messages::-webkit-scrollbar-thumb {
  background: rgba(120,120,120,.35) !important;
}

@media (max-width: 768px) {
  .empty { padding-bottom: 7rem !important; }
  .composer-box { border-radius: 1.4rem !important; }
  .msg.user .bubble { max-width: 92% !important; }
  .navbar { padding-left: .55rem !important; padding-right: .55rem !important; }
}

/* === litewebui-build-28: unified tokens + streaming UX === */
/* Single source of truth — light & dark */
html.theme-light,
html.light {
  --bg-app: #f4f5f7;
  --bg-sidebar: #f9f9fb;
  --bg-elevated: #ffffff;
  --bg-hover: rgba(0, 0, 0, 0.05);
  --bg-active: rgba(0, 0, 0, 0.08);
  --bg-user: #e8eefc;
  --bg-composer: #ffffff;
  --bg-code: #f6f8fa;
  --border: rgba(0, 0, 0, 0.08);
  --border-strong: rgba(0, 0, 0, 0.14);
  --text: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --text-user: #0f172a;
  --accent: #4d6bfe;
  --accent-soft: rgba(77, 107, 254, 0.12);
  --danger: #dc2626;
  --shadow-composer: 0 2px 12px rgba(15, 23, 42, 0.06), 0 0 0 1px var(--border);
  --scrollbar: rgba(100, 100, 100, 0.35);
  color-scheme: light;
}

html.theme-dark,
html.dark {
  --bg-app: #212121;
  --bg-sidebar: #171717;
  --bg-elevated: #2f2f2f;
  --bg-hover: rgba(255, 255, 255, 0.06);
  --bg-active: rgba(255, 255, 255, 0.1);
  --bg-user: #2f2f2f;
  --bg-composer: #2f2f2f;
  --bg-code: #0d0d0d;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #ececec;
  --text-secondary: #a3a3a3;
  --text-muted: #737373;
  --text-user: #f5f5f5;
  --accent: #4d6bfe;
  --accent-soft: rgba(77, 107, 254, 0.18);
  --danger: #f87171;
  --shadow-composer: 0 8px 28px rgba(0, 0, 0, 0.35);
  --scrollbar: rgba(160, 160, 160, 0.35);
  color-scheme: dark;
}

/* Apply tokens globally (wins over older hardcodes) */
html.theme-light body,
html.light body,
html.theme-dark body,
html.dark body {
  background: var(--bg-app) !important;
  color: var(--text) !important;
}

html.theme-light .sidebar,
html.light .sidebar,
html.theme-dark .sidebar,
html.dark .sidebar {
  background: var(--bg-sidebar) !important;
  border-right: 1px solid var(--border) !important;
  color: var(--text-secondary) !important;
}

html.theme-light .sb-name,
html.light .sb-name {
  color: var(--accent) !important;
}
html.theme-dark .sb-name,
html.dark .sb-name {
  color: #fff !important;
}

html.theme-light .main-wrap,
html.light .main-wrap,
html.theme-dark .main-wrap,
html.dark .main-wrap {
  background: var(--bg-app) !important;
  color: var(--text) !important;
}

html.theme-light .navbar,
html.light .navbar,
html.theme-dark .navbar,
html.dark .navbar {
  background: transparent !important;
  color: var(--text) !important;
}

.model-selector select {
  color: var(--text) !important;
}
.model-selector select option {
  background: var(--bg-elevated) !important;
  color: var(--text) !important;
}

.conv-item,
.group-label,
.user-name {
  color: var(--text) !important;
}
.user-role,
.sb-logout,
.disclaimer,
.group-toggle {
  color: var(--text-muted) !important;
}
.conv-row:hover,
.conv-row.active {
  background: var(--bg-hover) !important;
}
.conv-row.active {
  background: var(--bg-active) !important;
}
.user-row:hover,
.sb-new-chat:hover {
  background: var(--bg-hover) !important;
}

.sb-new-chat {
  background: var(--bg-elevated) !important;
  border: 1px solid var(--border) !important;
  color: var(--text) !important;
  box-shadow: none !important;
}

.empty-title {
  color: var(--text) !important;
  -webkit-text-fill-color: var(--text) !important;
}
.empty-sub {
  color: var(--text-secondary) !important;
}

.msg {
  color: var(--text) !important;
}
.msg.user .bubble {
  background: var(--bg-user) !important;
  color: var(--text-user) !important;
  border: 1px solid transparent !important;
}
html.theme-light .msg.user .bubble,
html.light .msg.user .bubble {
  border-color: rgba(77, 107, 254, 0.12) !important;
}
.msg.assistant .role {
  color: var(--text) !important;
  opacity: 0.85 !important;
}
.msg.assistant .bubble {
  color: var(--text) !important;
}
.msg .bubble a {
  color: var(--accent) !important;
}
.msg .bubble pre {
  background: var(--bg-code) !important;
  border: 1px solid var(--border) !important;
  color: var(--text) !important;
}
.msg .bubble code {
  background: var(--bg-hover) !important;
  color: var(--text) !important;
}

.composer-box {
  background: var(--bg-composer) !important;
  border: 1px solid var(--border) !important;
  box-shadow: var(--shadow-composer) !important;
}
.composer-box:focus-within {
  border-color: var(--accent) !important;
  box-shadow: 0 0 0 3px var(--accent-soft), var(--shadow-composer) !important;
}
.composer textarea {
  color: var(--text) !important;
}
.composer textarea::placeholder {
  color: var(--text-muted) !important;
}
.icon-btn,
.attach-btn,
.msg-act {
  color: var(--text-secondary) !important;
}
.icon-btn:hover,
.attach-btn:hover,
.msg-act:hover {
  background: var(--bg-hover) !important;
  color: var(--text) !important;
}

html.theme-light .send-btn,
html.light .send-btn {
  background: var(--text) !important;
  color: #fff !important;
}
html.theme-dark .send-btn,
html.dark .send-btn {
  background: #fff !important;
  color: #111 !important;
}

/* Settings / modal */
.modal-card {
  background: var(--bg-elevated) !important;
  color: var(--text) !important;
  border: 1px solid var(--border) !important;
}
.modal input,
#panel-api input,
#set-theme {
  background: var(--bg-app) !important;
  color: var(--text) !important;
  border: 1px solid var(--border) !important;
}
.modal label,
#panel-api label,
.hint {
  color: var(--text-secondary) !important;
}
html.theme-light .btn-secondary,
html.light .btn-secondary {
  background: var(--bg-elevated) !important;
  color: var(--text) !important;
  border: 1px solid var(--border-strong) !important;
}
html.theme-light .btn-primary,
html.light .btn-primary {
  background: var(--text) !important;
  color: #fff !important;
}
html.theme-dark .btn-primary,
html.dark .btn-primary {
  background: #fff !important;
  color: #111 !important;
}
html.theme-dark .btn-secondary,
html.dark .btn-secondary {
  color: var(--text) !important;
  border-color: var(--border-strong) !important;
  background: transparent !important;
}

.confirm-card {
  background: var(--bg-elevated) !important;
  border-color: var(--border) !important;
}
.confirm-title { color: var(--text) !important; }
.confirm-sub { color: var(--text-secondary) !important; }
.btn-confirm-cancel {
  color: var(--text) !important;
  border-color: var(--border-strong) !important;
}

/* Login */
.login { background: var(--bg-app) !important; color: var(--text) !important; }
.login-card {
  background: var(--bg-elevated) !important;
  border: 1px solid var(--border) !important;
  color: var(--text) !important;
}
.login h1 { color: var(--text) !important; }
.login input {
  background: var(--bg-app) !important;
  color: var(--text) !important;
  border-color: var(--border) !important;
}

/* Streaming / thinking — like ChatGPT */
.msg.is-streaming .msg-actions { display: none !important; }
.bubble.streaming {
  min-height: 1.4em;
}
.bubble.streaming::after {
  content: "";
  display: inline-block;
  width: 0.45em;
  height: 1.05em;
  margin-left: 2px;
  vertical-align: text-bottom;
  background: var(--text);
  border-radius: 1px;
  animation: caret-blink 1s steps(1) infinite;
  opacity: 0.85;
}
.bubble.streaming:has(.thinking)::after {
  display: none;
}
@keyframes caret-blink {
  0%, 50% { opacity: 0.9; }
  51%, 100% { opacity: 0; }
}
.thinking {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.15rem 0;
  min-height: 1.4em;
}
.thinking .dot {
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 9999px;
  background: var(--text-muted);
  animation: think-bounce 1.2s ease-in-out infinite;
}
.thinking .dot:nth-child(2) { animation-delay: 0.15s; }
.thinking .dot:nth-child(3) { animation-delay: 0.3s; }
@keyframes think-bounce {
  0%, 80%, 100% { transform: translateY(0); opacity: 0.45; }
  40% { transform: translateY(-3px); opacity: 1; }
}

/* Body inherits theme when class on html only */
html.theme-light,
html.light,
html.theme-dark,
html.dark {
  background: var(--bg-app);
}

/* Conv menu */
.conv-menu {
  background: var(--bg-elevated) !important;
  border: 1px solid var(--border) !important;
  color: var(--text) !important;
  box-shadow: 0 12px 40px rgba(0,0,0,.15) !important;
}
.conv-menu button {
  color: var(--text) !important;
}
.conv-menu button:hover {
  background: var(--bg-hover) !important;
}

/* Soften conflicting light force-whites on assistant in old rules */
html.theme-light .msg.assistant .bubble,
html.light .msg.assistant .bubble,
html.theme-light .messages .bubble,
html.light .messages .bubble {
  color: var(--text) !important;
}
html.theme-dark .msg.assistant .bubble,
html.dark .msg.assistant .bubble {
  color: var(--text) !important;
}

/* Settings nav */
.settings-nav-btn {
  color: var(--text-secondary) !important;
}
.settings-nav-btn.active {
  background: var(--bg-hover) !important;
  color: var(--text) !important;
}
.theme-card {
  border: 1px solid var(--border) !important;
  background: var(--bg-app) !important;
  color: var(--text) !important;
}
.theme-card.active {
  border-color: var(--accent) !important;
  background: var(--accent-soft) !important;
}

.messages::-webkit-scrollbar-thumb {
  background: var(--scrollbar) !important;
}
/* === litewebui-build-29: polish after audit === */
body.streaming-lock .send-btn { opacity: .4; pointer-events: none; }
.msg-actions { opacity: 0.7 !important; }
@media (hover: hover) {
  .msg-actions { opacity: 0 !important; }
  .msg:hover .msg-actions, .msg:focus-within .msg-actions { opacity: 1 !important; }
}

/* === litewebui-build-30: easy AI-chat UX === */
.main-wrap { --chat-pad: clamp(0.75rem, 2vw, 1.25rem); }
.msg-inner, .composer-box, .empty-inner {
  width: min(48rem, 100%) !important;
  max-width: 48rem !important;
}
.empty {
  min-height: calc(100% - 2rem) !important;
  padding: 3rem var(--chat-pad) 8rem !important;
}
.empty-sub {
  font-size: 1.05rem !important;
  color: var(--text-secondary, #64748b) !important;
}
.composer {
  padding: 0.5rem var(--chat-pad) calc(0.75rem + env(safe-area-inset-bottom, 0px)) !important;
}
.composer-box {
  min-height: 3.25rem !important;
  border-radius: 1.75rem !important;
}
.composer textarea { font-size: 16px !important; }
.send-btn {
  width: 2.35rem !important;
  height: 2.35rem !important;
  border-radius: 9999px !important;
}
.send-btn:disabled { opacity: 0.35 !important; cursor: not-allowed !important; }
body.is-streaming .send-btn { opacity: 0.4 !important; }
.msg-act { width: 2rem !important; height: 2rem !important; }
@media (hover: hover) and (pointer: fine) {
  .msg-actions { opacity: 0 !important; transition: opacity .12s ease; }
  .msg:hover .msg-actions,
  .msg:focus-within .msg-actions { opacity: 1 !important; }
}
@media (hover: none), (pointer: coarse) {
  .msg-actions { opacity: 1 !important; }
}
.msg.user .bubble { max-width: min(85%, 34rem) !important; }
.msg.assistant .bubble { line-height: 1.7 !important; font-size: 0.98rem !important; }
.conv-item { padding: 0.6rem 0.65rem !important; }
.model-selector select { max-width: min(70vw, 22rem) !important; font-weight: 600 !important; }
.disclaimer { text-align: center !important; font-size: 0.72rem !important; }
.theme-card { min-height: 3rem !important; }
.settings-nav-btn { min-height: 2.5rem !important; border-radius: 0.75rem !important; }
@media (max-width: 768px) {
  .msg-inner { padding: 0 0.85rem !important; }
  .composer { padding-left: 0.65rem !important; padding-right: 0.65rem !important; }
  .empty { padding-bottom: 9rem !important; }
}

/* === litewebui-build-31: model processing loader === */
.msg.is-streaming .msg-actions { display: none !important; }
.msg.is-streaming .role { opacity: 0.75; }

.bubble.streaming {
  min-height: 2.5rem;
  display: flex;
  align-items: center;
}
/* hide caret while loader showing */
.bubble.streaming:has(.thinking)::after {
  display: none !important;
}
.bubble.streaming:not(:has(.thinking))::after {
  content: "";
  display: inline-block;
  width: 0.45em;
  height: 1.05em;
  margin-left: 2px;
  vertical-align: text-bottom;
  background: var(--text, currentColor);
  border-radius: 1px;
  animation: caret-blink 1s steps(1) infinite;
  opacity: 0.85;
}
@keyframes caret-blink {
  0%, 50% { opacity: 0.9; }
  51%, 100% { opacity: 0; }
}

.thinking {
  display: inline-flex !important;
  align-items: center !important;
  gap: 0.75rem !important;
  padding: 0.25rem 0.15rem !important;
  min-height: 2.25rem !important;
  background: transparent !important;
}
.thinking-orb {
  position: relative;
  width: 2.35rem;
  height: 2.35rem;
  flex-shrink: 0;
  display: grid;
  place-items: center;
}
.thinking-logo {
  width: 1.35rem;
  height: 1.35rem;
  object-fit: contain;
  border-radius: 9999px;
  animation: thinking-pulse 1.2s ease-in-out infinite;
  z-index: 1;
}
.thinking-ring {
  position: absolute;
  inset: 0;
  border-radius: 9999px;
  border: 2px solid transparent;
  border-top-color: #4d6bfe;
  border-right-color: rgba(77, 107, 254, 0.35);
  animation: thinking-spin 0.85s linear infinite;
}
.thinking-label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted, #94a3b8);
  letter-spacing: -0.01em;
  animation: thinking-fade 1.4s ease-in-out infinite;
}
html.theme-dark .thinking-label,
html.dark .thinking-label {
  color: #9ca3af;
}
html.theme-light .thinking-label,
html.light .thinking-label {
  color: #64748b;
}

/* hide old dots if any leftover */
.thinking .dot { display: none !important; }

@keyframes thinking-spin {
  to { transform: rotate(360deg); }
}
@keyframes thinking-pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(0.92); opacity: 0.75; }
}
@keyframes thinking-fade {
  0%, 100% { opacity: 0.55; }
  50% { opacity: 1; }
}

/* when answer starts, loader gone (JS clears .thinking) */

/* === litewebui-build-32: aesthetic AI chat === */
:root {
  --font: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
html, body { font-family: var(--font) !important; -webkit-font-smoothing: antialiased; }
html.theme-dark, html.dark {
  --bg-app: #0f0f10 !important;
  --bg-sidebar: #141416 !important;
  --bg-elevated: #1c1c1f !important;
  --bg-composer: #1a1a1d !important;
  --text: #ececf1 !important;
  --text-secondary: #a1a1aa !important;
  --border: rgba(255,255,255,0.08) !important;
  --accent: #5b7cfa !important;
  --accent-soft: rgba(91,124,250,0.16) !important;
  --user-bubble: #2a2b32 !important;
  --shadow: 0 10px 32px rgba(0,0,0,0.38) !important;
}
html.theme-light, html.light {
  --bg-app: #f7f7f8 !important;
  --bg-sidebar: #efeff1 !important;
  --bg-elevated: #ffffff !important;
  --bg-composer: #ffffff !important;
  --text: #0f172a !important;
  --text-secondary: #64748b !important;
  --border: rgba(15,23,42,0.08) !important;
  --accent: #4d6bfe !important;
  --accent-soft: rgba(77,107,254,0.12) !important;
  --user-bubble: #e8eefc !important;
  --shadow: 0 10px 28px rgba(15,23,42,0.08) !important;
}
body, .app, .main-wrap, .messages { background: var(--bg-app) !important; color: var(--text) !important; }
.sidebar { background: var(--bg-sidebar) !important; border-right: 1px solid var(--border) !important; }
.sb-name { font-weight: 650 !important; letter-spacing: -0.03em !important; }
.sb-new-chat {
  border-radius: 0.9rem !important;
  background: var(--bg-elevated) !important;
  border: 1px solid var(--border) !important;
}
.sb-new-chat:hover { border-color: var(--accent) !important; }
.conv-item { border-radius: 0.75rem !important; }
.conv-item.active, .conv-item:hover { background: var(--accent-soft) !important; }
.group-label {
  color: var(--text-secondary) !important;
  font-size: 0.72rem !important;
  letter-spacing: 0.04em !important;
  text-transform: uppercase !important;
}
.navbar { background: transparent !important; border-bottom: none !important; padding: 0.65rem 1rem !important; }
.model-selector select {
  appearance: none !important;
  -webkit-appearance: none !important;
  border-radius: 9999px !important;
  border: 1px solid var(--border) !important;
  background-color: var(--bg-elevated) !important;
  color: var(--text) !important;
  font-weight: 600 !important;
  font-size: 0.95rem !important;
  padding: 0.55rem 2.35rem 0.55rem 1rem !important;
  box-shadow: var(--shadow) !important;
  max-width: min(70vw, 16rem) !important;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 20 20' fill='%2394a3b8'%3E%3Cpath d='M5.23 7.21a.75.75 0 011.06.02L10 11.17l3.71-3.94a.75.75 0 111.08 1.04l-4.25 4.5a.75.75 0 01-1.08 0l-4.25-4.5a.75.75 0 01.02-1.06z'/%3E%3C/svg%3E") !important;
  background-repeat: no-repeat !important;
  background-position: right 0.85rem center !important;
  cursor: pointer !important;
}
.model-selector select:hover { border-color: var(--accent) !important; }
.messages { padding: 0.5rem 0 1.5rem !important; }
.msg { padding: 0.7rem 0 !important; animation: msg-in .28s cubic-bezier(0.22,1,0.36,1) both; }
@keyframes msg-in { from { opacity: 0; transform: translateY(6px);} to { opacity: 1; transform: none;} }
.msg-inner { width: min(46rem, calc(100% - 1.5rem)) !important; margin: 0 auto !important; gap: 0.75rem !important; }
.msg.assistant .avatar {
  width: 1.9rem !important; height: 1.9rem !important;
  border-radius: 9999px !important;
  background: linear-gradient(145deg, #1e293b, #0f172a) !important;
  border: 1px solid var(--border) !important;
  display: grid !important; place-items: center !important;
  overflow: hidden !important; flex-shrink: 0 !important;
  box-shadow: 0 2px 8px rgba(0,0,0,0.14) !important;
}
html.theme-light .msg.assistant .avatar,
html.light .msg.assistant .avatar {
  background: linear-gradient(145deg, #ffffff, #eef2ff) !important;
}
.avatar-logo, .msg.assistant .avatar img {
  width: 1.15rem !important; height: 1.15rem !important;
  object-fit: contain !important; display: block !important;
}
.msg.assistant .role {
  font-size: 0.8rem !important; font-weight: 600 !important;
  color: var(--text-secondary) !important; margin-bottom: 0.25rem !important;
}
.msg.assistant .bubble {
  background: transparent !important; border: none !important; box-shadow: none !important;
  padding: 0.1rem 0 0.25rem !important; color: var(--text) !important;
  line-height: 1.7 !important; font-size: 0.98rem !important;
}
.msg.user .bubble {
  background: var(--user-bubble) !important; color: var(--text) !important;
  border-radius: 1.25rem 1.25rem 0.35rem 1.25rem !important;
  padding: 0.72rem 1.05rem !important; border: 1px solid var(--border) !important;
  max-width: min(85%, 34rem) !important; line-height: 1.55 !important;
  box-shadow: none !important;
}
.composer {
  background: linear-gradient(to top, var(--bg-app) 72%, transparent) !important;
  padding: 0.35rem 1rem calc(0.9rem + env(safe-area-inset-bottom, 0px)) !important;
}
.composer-box {
  width: min(46rem, 100%) !important; margin: 0 auto !important;
  background: var(--bg-composer) !important; border: 1px solid var(--border) !important;
  border-radius: 1.75rem !important; box-shadow: var(--shadow) !important;
  min-height: 3.4rem !important;
}
.composer-box:focus-within {
  border-color: rgba(91,124,250,0.45) !important;
  box-shadow: 0 0 0 3px var(--accent-soft), var(--shadow) !important;
}
.composer textarea { color: var(--text) !important; font-size: 16px !important; }
.send-btn {
  background: var(--accent) !important; color: #fff !important; border: none !important;
  border-radius: 9999px !important; width: 2.4rem !important; height: 2.4rem !important;
}
.send-btn:hover:not(:disabled) { filter: brightness(1.06); }
.send-btn:disabled { opacity: 0.35 !important; background: var(--text-secondary) !important; }
.send-btn svg { stroke: currentColor !important; }
.empty-avatar {
  width: 3.5rem !important; height: 3.5rem !important; border-radius: 1.1rem !important;
  background: var(--bg-elevated) !important; border: 1px solid var(--border) !important;
  box-shadow: var(--shadow) !important; display: grid !important; place-items: center !important;
}
.empty-title {
  font-size: clamp(1.5rem, 3vw, 1.9rem) !important; font-weight: 700 !important;
  letter-spacing: -0.04em !important; color: var(--text) !important;
}
.empty-sub { color: var(--text-secondary) !important; }
.login {
  background:
    radial-gradient(1100px 560px at 18% -8%, rgba(91,124,250,0.2), transparent 55%),
    radial-gradient(900px 480px at 92% 18%, rgba(56,189,248,0.12), transparent 50%),
    var(--bg-app) !important;
}
.login-card {
  background: var(--bg-elevated) !important; border: 1px solid var(--border) !important;
  border-radius: 1.35rem !important; box-shadow: var(--shadow) !important;
}
.btn-primary { background: var(--accent) !important; border-radius: 0.75rem !important; font-weight: 600 !important; }
.modal-card, .settings-card, .confirm-card {
  background: var(--bg-elevated) !important; border: 1px solid var(--border) !important;
  border-radius: 1.15rem !important; box-shadow: var(--shadow) !important; color: var(--text) !important;
}
.theme-card { background: var(--bg-app) !important; border: 1px solid var(--border) !important; border-radius: 0.9rem !important; }
.theme-card.active { border-color: var(--accent) !important; box-shadow: 0 0 0 2px var(--accent-soft) !important; }
.msg-act { border-radius: 0.55rem !important; color: var(--text-secondary) !important; }
.msg-act:hover { background: var(--accent-soft) !important; color: var(--text) !important; }
.thinking-ring { border-top-color: var(--accent) !important; }
.thinking-label { color: var(--text-secondary) !important; font-weight: 500 !important; }
.disclaimer { color: var(--text-secondary) !important; opacity: 0.9; }

/* === litewebui-build-35: mobile icon visibility === */
.send-btn {
  display: grid !important;
  place-items: center !important;
  flex-shrink: 0 !important;
  color: #fff !important;
}
.send-btn svg {
  width: 1.1rem !important;
  height: 1.1rem !important;
  stroke: currentColor !important;
  fill: none !important;
  display: block !important;
  flex-shrink: 0 !important;
}
/* light: dark disc + white arrow */
html.theme-light .send-btn,
html.light .send-btn {
  background: #111827 !important;
  color: #fff !important;
}
/* dark: accent disc + white arrow (never white-on-white) */
html.theme-dark .send-btn,
html.dark .send-btn {
  background: var(--accent, #5b7cfa) !important;
  color: #fff !important;
}
.send-btn:disabled {
  opacity: 0.4 !important;
}

/* attach paperclip always visible */
.attach-btn {
  display: grid !important;
  place-items: center !important;
  flex-shrink: 0 !important;
  min-width: 2.35rem !important;
  min-height: 2.35rem !important;
  color: var(--text-secondary, #94a3b8) !important;
  opacity: 1 !important;
  visibility: visible !important;
}
.attach-btn svg {
  width: 1.25rem !important;
  height: 1.25rem !important;
  stroke: currentColor !important;
  fill: none !important;
  display: block !important;
}
html.theme-dark .attach-btn,
html.dark .attach-btn {
  color: #a1a1aa !important;
}
html.theme-light .attach-btn,
html.light .attach-btn {
  color: #64748b !important;
}

/* logos / external favicon fallback size on mobile */
.ds-logo-img,
.avatar-logo,
.thinking-logo {
  display: block !important;
  object-fit: contain !important;
  max-width: 100% !important;
  height: auto !important;
}
.msg.assistant .avatar {
  min-width: 1.9rem !important;
  min-height: 1.9rem !important;
}

@media (max-width: 768px) {
  .composer-box {
    display: flex !important;
    align-items: flex-end !important;
    gap: 0.35rem !important;
    padding: 0.45rem 0.45rem 0.45rem 0.5rem !important;
  }
  .attach-btn,
  .send-btn {
    width: 2.5rem !important;
    height: 2.5rem !important;
    min-width: 2.5rem !important;
    min-height: 2.5rem !important;
  }
  .composer textarea {
    min-width: 0 !important;
    flex: 1 1 auto !important;
  }
  .composer-actions {
    display: flex !important;
    flex-shrink: 0 !important;
  }
}

/* === litewebui-build-36: brand blue accent both themes === */
/* Reference blue from send button screenshot ~ #3B6FF5 / DeepSeek-like #4D6BFE */
html, html.theme-light, html.light, html.theme-dark, html.dark {
  --accent: #4d6bfe !important;
  --accent-hover: #3d5ce8 !important;
  --accent-soft: rgba(77, 107, 254, 0.16) !important;
  --accent-ring: rgba(77, 107, 254, 0.28) !important;
}

/* Send always brand blue + white arrow */
.send-btn,
html.theme-light .send-btn,
html.light .send-btn,
html.theme-dark .send-btn,
html.dark .send-btn {
  background: var(--accent) !important;
  color: #fff !important;
  border: none !important;
}
.send-btn:hover:not(:disabled),
html.theme-light .send-btn:hover:not(:disabled),
html.light .send-btn:hover:not(:disabled),
html.theme-dark .send-btn:hover:not(:disabled),
html.dark .send-btn:hover:not(:disabled) {
  background: var(--accent-hover) !important;
  filter: none !important;
  transform: scale(1.04);
}
.send-btn:disabled {
  background: var(--accent) !important;
  opacity: 0.4 !important;
  color: #fff !important;
}
.send-btn svg {
  stroke: #fff !important;
  color: #fff !important;
}

/* Primary actions */
.btn-primary,
button.btn-primary {
  background: var(--accent) !important;
  color: #fff !important;
  border: none !important;
}
.btn-primary:hover {
  background: var(--accent-hover) !important;
}

/* Brand name / focus */
.sb-name {
  color: var(--accent) !important;
}
.composer-box:focus-within {
  border-color: var(--accent) !important;
  box-shadow: 0 0 0 3px var(--accent-soft), var(--shadow, 0 8px 28px rgba(0,0,0,.12)) !important;
}
.model-selector select:hover,
.model-selector select:focus {
  border-color: var(--accent) !important;
}
.theme-card.active {
  border-color: var(--accent) !important;
  box-shadow: 0 0 0 2px var(--accent-soft) !important;
}
.conv-item.active {
  background: var(--accent-soft) !important;
}
.thinking-ring {
  border-top-color: var(--accent) !important;
  border-right-color: var(--accent-ring) !important;
}
.sb-new-chat:hover {
  border-color: var(--accent) !important;
}
a, .msg .bubble a {
  color: var(--accent) !important;
}
html.theme-dark a,
html.dark a,
html.theme-dark .msg .bubble a,
html.dark .msg .bubble a {
  color: #8aa0ff !important;
}

/* Login submit same blue */
.login .btn-primary {
  background: var(--accent) !important;
}

/* === litewebui-build-37: fix chat bubble layout === */
.messages {
  display: flex !important;
  flex-direction: column !important;
  gap: 0.15rem !important;
}
.msg {
  width: 100% !important;
  box-sizing: border-box !important;
}
.msg-inner {
  width: min(48rem, 100%) !important;
  max-width: 100% !important;
  margin: 0 auto !important;
  padding: 0 1rem !important;
  box-sizing: border-box !important;
}

/* USER: right aligned, bubble grows with text, no per-char wrap */
.msg.user .msg-inner {
  display: flex !important;
  justify-content: flex-end !important;
  align-items: flex-end !important;
}
.msg-col.user-col {
  display: flex !important;
  flex-direction: column !important;
  align-items: flex-end !important;
  gap: 0.3rem !important;
  max-width: min(85%, 36rem) !important;
  min-width: 0 !important;
  width: auto !important;
}
.msg.user .bubble {
  display: inline-block !important;
  width: fit-content !important;
  max-width: 100% !important;
  min-width: 2.75rem !important;
  box-sizing: border-box !important;
  white-space: pre-wrap !important;
  overflow-wrap: break-word !important;
  word-break: normal !important;
  word-wrap: break-word !important;
  hyphens: none !important;
  line-height: 1.5 !important;
  padding: 0.65rem 1rem !important;
  border-radius: 1.15rem 1.15rem 0.35rem 1.15rem !important;
  background: #dbe4ff !important;
  color: #0f172a !important;
  border: none !important;
}
html.theme-dark .msg.user .bubble,
html.dark .msg.user .bubble {
  background: #2f3340 !important;
  color: #f3f4f6 !important;
}
.msg.user .bubble-text {
  display: block !important;
  white-space: pre-wrap !important;
  overflow-wrap: break-word !important;
  word-break: normal !important;
  width: auto !important;
  max-width: 100% !important;
}

/* ASSISTANT: avatar + body full width left */
.msg.assistant .msg-inner {
  display: flex !important;
  flex-direction: row !important;
  align-items: flex-start !important;
  gap: 0.75rem !important;
  justify-content: flex-start !important;
}
.msg.assistant .body {
  flex: 1 1 auto !important;
  min-width: 0 !important;
  max-width: 100% !important;
}
.msg.assistant .bubble {
  display: block !important;
  width: 100% !important;
  max-width: 100% !important;
  white-space: normal !important;
  overflow-wrap: break-word !important;
  word-break: normal !important;
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  padding: 0.1rem 0 !important;
  color: var(--text, #111) !important;
}
.msg.assistant .bubble pre {
  white-space: pre-wrap !important;
  overflow-x: auto !important;
  max-width: 100% !important;
  border-radius: 0.75rem !important;
  padding: 0.85rem 1rem !important;
  background: rgba(127,127,127,0.1) !important;
}
.msg.assistant .avatar {
  flex-shrink: 0 !important;
  width: 1.85rem !important;
  height: 1.85rem !important;
}

/* model select: readable, not forced narrow */
.model-selector select {
  max-width: min(92vw, 18rem) !important;
  text-overflow: ellipsis !important;
}

@media (max-width: 768px) {
  .msg-col.user-col {
    max-width: min(92%, 100%) !important;
  }
  .msg.user .bubble {
    max-width: 100% !important;
  }
  .msg-inner {
    padding: 0 0.75rem !important;
  }
}
/* paste / drag-drop attach */
.composer.drag-over .composer-box {
  outline: 2px solid #4d6bfe;
  outline-offset: 2px;
  background: rgba(77, 107, 254, 0.08);
}
/* ============================================================
   litewebui-build-71 — UI restore (pre-optimize quality)
   mode chip + voice + brand + private + adaptive shell
   ============================================================ */

:root {
  --brand: #4D6BFE;
  --brand-soft: #6B8CFF;
  --composer-shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
}

/* Brand / empty title */
.sb-name,
.nav-brand-name,
.empty-title,
#empty-title {
  color: var(--brand) !important;
  -webkit-text-fill-color: var(--brand) !important;
  font-weight: 700 !important;
}
html.theme-dark .empty-title,
html.dark .empty-title,
html.theme-dark #empty-title,
html.dark #empty-title {
  color: var(--brand-soft) !important;
  -webkit-text-fill-color: var(--brand-soft) !important;
}
.empty-hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.85rem;
}
.empty-mark,
.empty-avatar {
  width: 3.25rem;
  height: 3.25rem;
  border-radius: 999px;
  display: grid;
  place-items: center;
  overflow: hidden;
}
.empty-mark img,
.empty-avatar img,
.ds-logo-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.sb-logo .ds-logo-img,
.nav-brand-logo {
  width: 100%;
  height: 100%;
}
.sb-brand {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  min-width: 0;
}
.sb-logo {
  width: 1.75rem;
  height: 1.75rem;
  flex-shrink: 0;
  display: grid;
  place-items: center;
}
.sb-name {
  line-height: 1.1;
  transform: translateY(1px);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Navbar brand when sidebar collapsed / mobile drawer closed */
.nav-brand-left {
  display: none;
  align-items: center;
  gap: 0.45rem;
  min-width: 0;
  flex: 1;
}
.app.sidebar-collapsed .nav-brand-left,
body.is-mobile:not(.sidebar-drawer-open) .nav-brand-left {
  display: flex !important;
}
.nav-brand-mark,
.nav-brand-name {
  display: none;
}
.app.sidebar-collapsed .nav-brand-mark,
body.is-mobile:not(.sidebar-drawer-open) .nav-brand-mark {
  display: flex !important;
  width: 1.4rem;
  height: 1.4rem;
  align-items: center;
  flex-shrink: 0;
}
.app.sidebar-collapsed .nav-brand-name,
body.is-mobile:not(.sidebar-drawer-open) .nav-brand-name {
  display: inline-flex !important;
  font-weight: 700;
  font-size: 1.02rem;
  align-items: center;
  letter-spacing: -0.01em;
}
body.is-mobile.sidebar-drawer-open .nav-brand-mark,
body.is-mobile.sidebar-drawer-open .nav-brand-name {
  display: none !important;
}

/* Composer pill layout — actions group */
.composer-box {
  display: grid !important;
  grid-template-columns: auto 1fr auto !important;
  align-items: end !important;
}
.composer-actions {
  display: flex !important;
  align-items: center !important;
  gap: 0.35rem !important;
  flex-shrink: 0;
  margin: 0 0 0.05rem !important;
}

/* Model chip (composer) */
.mode-wrap,
.model-picker-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.mode-chip,
.model-chip {
  display: inline-flex !important;
  align-items: center !important;
  gap: 0.28rem !important;
  max-width: 11.5rem;
  height: 2.15rem;
  padding: 0 0.65rem 0 0.75rem !important;
  border-radius: 999px !important;
  border: 1px solid rgba(15, 23, 42, 0.1) !important;
  background: #f3f4f6 !important;
  color: #111827 !important;
  font-size: 0.82rem !important;
  font-weight: 500 !important;
  line-height: 1 !important;
  cursor: pointer !important;
  white-space: nowrap;
  box-shadow: none !important;
  transition: background 0.12s ease, border-color 0.12s ease, box-shadow 0.12s ease !important;
}
.mode-chip:hover,
.model-chip:hover {
  background: #e8eaed !important;
  border-color: rgba(15, 23, 42, 0.14) !important;
}
.mode-chip:focus-visible,
.model-chip:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(77, 107, 254, 0.18) !important;
}
html.theme-dark .mode-chip,
html.dark .mode-chip,
html.theme-dark .model-chip,
html.dark .model-chip {
  background: rgba(255, 255, 255, 0.08) !important;
  border-color: rgba(255, 255, 255, 0.12) !important;
  color: #f3f4f6 !important;
}
html.theme-dark .mode-chip:hover,
html.dark .mode-chip:hover,
html.theme-dark .model-chip:hover,
html.dark .model-chip:hover {
  background: rgba(255, 255, 255, 0.12) !important;
}
#model-chip-label {
  max-width: 8.5rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  display: inline-block;
}
.mode-chev {
  flex-shrink: 0;
  opacity: 0.65;
  width: 14px;
  height: 14px;
}

/* Model dropdown menu */
.mode-menu,
.model-menu {
  position: absolute;
  right: 0;
  bottom: calc(100% + 0.45rem);
  z-index: 60;
  min-width: 12.5rem;
  max-width: min(20rem, 86vw);
  max-height: min(16rem, 45vh);
  overflow: auto;
  padding: 0.35rem;
  border-radius: 0.9rem;
  border: 1px solid rgba(15, 23, 42, 0.1);
  background: #fff;
  box-shadow: 0 12px 40px rgba(15, 23, 42, 0.14);
}
html.theme-dark .mode-menu,
html.dark .mode-menu,
html.theme-dark .model-menu,
html.dark .model-menu {
  background: #2a2a2a;
  border-color: rgba(255, 255, 255, 0.1);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
}
.mode-menu.hidden,
.model-menu.hidden {
  display: none !important;
}
.mode-item,
.model-item {
  display: block;
  width: 100%;
  text-align: left;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  font-size: 0.84rem;
  padding: 0.55rem 0.65rem;
  border-radius: 0.55rem;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.mode-item:hover,
.model-item:hover {
  background: rgba(77, 107, 254, 0.1);
}
.mode-item.active,
.model-item.active {
  background: rgba(77, 107, 254, 0.14);
  color: var(--brand);
  font-weight: 600;
}

/* Voice / dictation buttons — soft round, match chip height */
.voice-btn {
  width: 2.15rem !important;
  height: 2.15rem !important;
  min-width: 2.15rem !important;
  border-radius: 9999px !important;
  border: 1px solid rgba(15, 23, 42, 0.1) !important;
  background: #f3f4f6 !important;
  color: #6b7280 !important;
  display: grid !important;
  place-items: center !important;
  padding: 0 !important;
  cursor: pointer !important;
  transition: background 0.12s ease, color 0.12s ease, border-color 0.12s ease, transform 0.12s ease !important;
}
.voice-btn:hover {
  background: #e8eaed !important;
  color: #111827 !important;
}
.voice-btn:disabled {
  opacity: 0.4 !important;
  cursor: not-allowed !important;
}
html.theme-dark .voice-btn,
html.dark .voice-btn {
  background: rgba(255, 255, 255, 0.08) !important;
  border-color: rgba(255, 255, 255, 0.12) !important;
  color: #a3a3a3 !important;
}
html.theme-dark .voice-btn:hover,
html.dark .voice-btn:hover {
  background: rgba(255, 255, 255, 0.12) !important;
  color: #fff !important;
}
.voice-btn.active,
body.dictation-on .dictation-btn {
  color: #fff !important;
  background: #ef4444 !important;
  border-color: #ef4444 !important;
}
.voice-mode-btn.active,
body.voice-mode-on .voice-mode-btn {
  background: #111827 !important;
  color: #fff !important;
  border-color: #111827 !important;
}
html.theme-dark .voice-mode-btn.active,
html.dark .voice-mode-btn.active,
html.theme-dark body.voice-mode-on .voice-mode-btn,
html.dark body.voice-mode-on .voice-mode-btn {
  background: #fff !important;
  color: #111 !important;
  border-color: #fff !important;
}

/* Send button — soft brand when ready (light) */
html.theme-light .send-btn:not(:disabled),
html.light .send-btn:not(:disabled) {
  background: #c7d2fe !important;
  color: #1e3a8a !important;
}
html.theme-light .send-btn:not(:disabled):hover,
html.light .send-btn:not(:disabled):hover {
  background: #a5b4fc !important;
}
html.theme-light .send-btn:disabled,
html.light .send-btn:disabled {
  background: #e5e7eb !important;
  color: #9ca3af !important;
  opacity: 1 !important;
}

/* Private */
.private-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border-radius: 999px;
  border: 1px solid rgba(127, 127, 127, 0.28);
  background: transparent;
  padding: 0.38rem 0.7rem;
  cursor: pointer;
  font-size: 0.82rem;
  color: inherit;
  transition: background 0.12s ease, border-color 0.12s ease, color 0.12s ease;
}
.private-btn:hover {
  background: rgba(127, 127, 127, 0.08);
}
.private-btn.active {
  background: rgba(77, 107, 254, 0.12);
  border-color: rgba(77, 107, 254, 0.45);
  color: var(--brand);
}
body.private-mode .main-wrap {
  position: relative;
}
body.private-mode .main-wrap::before {
  content: "";
  pointer-events: none;
  position: absolute;
  inset: 0;
  z-index: 1;
  background: radial-gradient(ellipse 70% 55% at 50% 42%, rgba(0, 0, 0, 0.32) 0%, rgba(0, 0, 0, 0.1) 50%, transparent 78%);
}
html.theme-light body.private-mode .main-wrap::before,
html.light body.private-mode .main-wrap::before {
  background: radial-gradient(ellipse 70% 55% at 50% 42%, rgba(40, 35, 70, 0.16) 0%, rgba(40, 35, 70, 0.05) 52%, transparent 80%);
}
body.private-mode .navbar,
body.private-mode .composer,
body.private-mode .messages {
  position: relative;
  z-index: 2;
}
.private-hint {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  opacity: 0.78;
  margin: 0.4rem 0 0;
}
.private-hint.hidden {
  display: none !important;
}

/* Voice overlay */
.voice-overlay {
  position: absolute;
  inset: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.48);
  padding: 1rem;
}
.voice-overlay.hidden {
  display: none !important;
}
.voice-overlay-card {
  width: min(22rem, 100%);
  text-align: center;
  padding: 1.5rem 1.25rem;
  border-radius: 1.25rem;
  background: rgba(24, 24, 28, 0.96);
  color: #f5f5f5;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}
html.theme-light .voice-overlay-card,
html.light .voice-overlay-card {
  background: rgba(255, 255, 255, 0.98);
  color: #111;
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.12);
}
.voice-overlay-bars {
  display: flex;
  gap: 0.32rem;
  justify-content: center;
  align-items: flex-end;
  height: 2.5rem;
  margin-bottom: 0.95rem;
}
.voice-overlay-bars span {
  width: 0.3rem;
  border-radius: 99px;
  background: var(--brand);
  animation: vbar 0.9s ease-in-out infinite;
}
.voice-overlay-bars span:nth-child(1) { height: 35%; }
.voice-overlay-bars span:nth-child(2) { height: 70%; animation-delay: 0.1s; }
.voice-overlay-bars span:nth-child(3) { height: 100%; animation-delay: 0.2s; }
.voice-overlay-bars span:nth-child(4) { height: 60%; animation-delay: 0.3s; }
.voice-overlay-bars span:nth-child(5) { height: 40%; animation-delay: 0.4s; }
@keyframes vbar {
  0%, 100% { transform: scaleY(0.45); opacity: 0.7; }
  50% { transform: scaleY(1); opacity: 1; }
}
.voice-overlay-status {
  font-weight: 600;
  font-size: 1.05rem;
  margin: 0 0 0.35rem;
}
.voice-overlay-partial {
  min-height: 1.25rem;
  font-size: 0.9rem;
  opacity: 0.75;
  margin: 0 0 1rem;
}
.voice-exit-btn {
  border: 0;
  border-radius: 999px;
  padding: 0.55rem 1.15rem;
  font-weight: 600;
  cursor: pointer;
  background: var(--brand);
  color: #fff;
}
.voice-overlay-hint {
  margin: 0.75rem 0 0;
  font-size: 0.72rem;
  opacity: 0.55;
}

/* Mic toast */
.mic-toast {
  position: fixed;
  left: 50%;
  bottom: calc(1.15rem + env(safe-area-inset-bottom, 0px));
  transform: translateX(-50%) translateY(120%);
  z-index: 9999;
  max-width: min(22rem, calc(100vw - 1.5rem));
  padding: 0.72rem 1.05rem;
  border-radius: 0.9rem;
  background: rgba(20, 20, 24, 0.94);
  color: #f5f5f5;
  font-size: 0.85rem;
  line-height: 1.35;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.28);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.22s ease, opacity 0.22s ease;
}
.mic-toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}
html.theme-light .mic-toast,
html.light .mic-toast {
  background: rgba(255, 255, 255, 0.98);
  color: #111;
  border: 1px solid rgba(0, 0, 0, 0.08);
}

/* Hide speech buttons only when no STT path */
html.no-speech-recognition:not(.has-media-stt) .dictation-btn,
html.no-speech-recognition:not(.has-media-stt) .voice-mode-btn {
  display: none !important;
}
html.no-speech-recognition.has-media-stt .dictation-btn,
html.no-speech-recognition.has-media-stt .voice-mode-btn {
  display: grid !important;
}

/* Adaptive desktop vs mobile */
@media (min-width: 769px) {
  .composer {
    padding-left: 1.25rem !important;
    padding-right: 1.25rem !important;
  }
  .composer-box {
    padding: 0.6rem 0.6rem 0.6rem 0.75rem !important;
  }
}
@media (max-width: 768px) {
  .composer textarea,
  #input {
    font-size: 16px !important;
  }
  .voice-overlay {
    position: fixed !important;
  }
  .model-chip,
  .mode-chip {
    max-width: min(7.5rem, 38vw);
    height: 2.05rem;
    padding: 0 0.5rem 0 0.6rem !important;
    font-size: 0.78rem !important;
  }
  #model-chip-label {
    max-width: 5.2rem;
  }
  .private-btn {
    font-size: 0.78rem;
    padding: 0.32rem 0.55rem;
  }
  .composer-actions {
    gap: 0.28rem !important;
  }
  .voice-btn,
  .send-btn,
  .attach-btn {
    width: 2.05rem !important;
    height: 2.05rem !important;
    min-width: 2.05rem !important;
  }
}
@media (max-width: 380px) {
  .private-btn span {
    display: none;
  }
  .model-chip,
  .mode-chip {
    max-width: min(6.2rem, 34vw);
  }
}

/* Viewport / scroll polish */
html, body, .app {
  min-height: 100%;
  min-height: 100dvh;
  min-height: -webkit-fill-available;
}
.messages,
.conv-list,
.mode-menu,
.model-menu {
  scrollbar-width: thin;
}

/* litewebui-build-72 — private btn right + navbar */
.navbar {
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  gap: 0.5rem !important;
  width: 100% !important;
}
.nav-brand-left {
  flex: 0 1 auto !important;
  min-width: 0 !important;
}
.model-selector,
.model-selector-hidden,
.navbar .model-selector[hidden] {
  display: none !important;
  flex: 0 0 0 !important;
  width: 0 !important;
  min-width: 0 !important;
  max-width: 0 !important;
  overflow: hidden !important;
  margin: 0 !important;
  padding: 0 !important;
  border: 0 !important;
  position: absolute !important;
  opacity: 0 !important;
  pointer-events: none !important;
}
.nav-right {
  margin-left: auto !important;
  display: flex !important;
  align-items: center !important;
  justify-content: flex-end !important;
  gap: 0.35rem !important;
  flex: 0 0 auto !important;
}
.navbar .private-btn.active {
  background: rgba(77, 107, 254, 0.12) !important;
  border-color: rgba(77, 107, 254, 0.45) !important;
  color: #4D6BFE !important;
}
html.theme-dark .navbar .private-btn.active,
html.dark .navbar .private-btn.active {
  background: rgba(107, 140, 255, 0.16) !important;
  color: #6B8CFF !important;
}

/* litewebui-build-74 — private mode blur/dim like before */
body.private-mode .main-wrap {
  position: relative !important;
  isolation: isolate;
}
body.private-mode .main-wrap::before {
  content: "" !important;
  pointer-events: none !important;
  position: absolute !important;
  inset: 0 !important;
  z-index: 1 !important;
  background:
    radial-gradient(ellipse 75% 60% at 50% 40%, rgba(0, 0, 0, 0.42) 0%, rgba(0, 0, 0, 0.18) 45%, transparent 78%),
    linear-gradient(to bottom, rgba(0, 0, 0, 0.12), rgba(0, 0, 0, 0.22)) !important;
  backdrop-filter: blur(10px) saturate(0.85) !important;
  -webkit-backdrop-filter: blur(10px) saturate(0.85) !important;
}
html.theme-light body.private-mode .main-wrap::before,
html.light body.private-mode .main-wrap::before {
  background:
    radial-gradient(ellipse 75% 60% at 50% 40%, rgba(30, 27, 60, 0.28) 0%, rgba(30, 27, 60, 0.1) 48%, transparent 80%),
    linear-gradient(to bottom, rgba(40, 35, 70, 0.08), rgba(40, 35, 70, 0.14)) !important;
  backdrop-filter: blur(12px) saturate(0.9) !important;
  -webkit-backdrop-filter: blur(12px) saturate(0.9) !important;
}
/* soft blur on chat surface (content still readable) */
body.private-mode .messages {
  filter: blur(0.35px) !important;
}
body.private-mode .messages .msg .bubble {
  filter: none !important;
  opacity: 0.92;
}
body.private-mode .navbar,
body.private-mode .composer,
body.private-mode .messages,
body.private-mode .voice-overlay {
  position: relative !important;
  z-index: 2 !important;
}
/* empty state also sits under dim */
body.private-mode .empty {
  position: relative;
  z-index: 2;
}

/* litewebui-build-74b — private dim ON TOP of chat (pointer-events none) */
body.private-mode .main-wrap {
  position: relative !important;
}
body.private-mode .main-wrap::after {
  content: "" !important;
  pointer-events: none !important;
  position: absolute !important;
  inset: 0 !important;
  z-index: 30 !important;
  border-radius: inherit;
  background:
    radial-gradient(ellipse 68% 52% at 50% 42%, rgba(0, 0, 0, 0.08) 0%, rgba(0, 0, 0, 0.28) 55%, rgba(0, 0, 0, 0.48) 100%),
    rgba(0, 0, 0, 0.14) !important;
  backdrop-filter: blur(6px) !important;
  -webkit-backdrop-filter: blur(6px) !important;
}
html.theme-light body.private-mode .main-wrap::after,
html.light body.private-mode .main-wrap::after {
  background:
    radial-gradient(ellipse 68% 52% at 50% 42%, rgba(40, 35, 70, 0.04) 0%, rgba(40, 35, 70, 0.16) 52%, rgba(30, 27, 55, 0.32) 100%),
    rgba(45, 40, 70, 0.1) !important;
  backdrop-filter: blur(8px) !important;
  -webkit-backdrop-filter: blur(8px) !important;
}
/* keep controls usable above dim */
body.private-mode .navbar,
body.private-mode .composer,
body.private-mode .voice-overlay {
  position: relative !important;
  z-index: 40 !important;
}
/* messages stay under frost (read through blur) — no raise */
body.private-mode .messages {
  position: relative !important;
  z-index: 1 !important;
  filter: none !important;
}
body.private-mode .main-wrap::before {
  /* disable weak underlay from older pack */
  display: none !important;
}

/* litewebui-build-75 — empty logo+title row; hide empty when chat */
.empty-hero {
  display: flex !important;
  flex-direction: row !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 0.75rem !important;
  margin-bottom: 0.15rem !important;
}
.empty-mark,
.empty-avatar {
  width: 2.75rem !important;
  height: 2.75rem !important;
  border-radius: 9999px !important;
  background: #fff !important;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06) !important;
  display: grid !important;
  place-items: center !important;
  overflow: hidden !important;
  flex-shrink: 0 !important;
}
.empty-avatar .ds-logo-img,
.empty-mark .ds-logo-img {
  width: 1.55rem !important;
  height: 1.55rem !important;
  object-fit: contain !important;
}
html.theme-dark .empty-avatar,
html.dark .empty-avatar,
html.theme-dark .empty-mark,
html.dark .empty-mark {
  background: #2a2a2a !important;
  box-shadow: none !important;
}
.empty-title,
#empty-title {
  margin: 0 !important;
  font-size: clamp(1.55rem, 3.5vw, 2rem) !important;
  font-weight: 700 !important;
  letter-spacing: -0.03em !important;
  line-height: 1.1 !important;
  color: #4D6BFE !important;
  -webkit-text-fill-color: #4D6BFE !important;
}
/* ensure empty truly disappears when chatting */
#empty.hidden,
.empty.hidden {
  display: none !important;
  visibility: hidden !important;
  pointer-events: none !important;
  height: 0 !important;
  overflow: hidden !important;
  margin: 0 !important;
  padding: 0 !important;
}
/* shell fallback */
.main-wrap.has-chat #empty,
.main-wrap.has-chat .empty {
  display: none !important;
}
.main-wrap.is-empty #empty:not(.hidden),
.main-wrap.is-empty .empty:not(.hidden) {
  display: flex !important;
}

/* litewebui-build-75b force row empty */
.empty-hero{display:flex!important;flex-direction:row!important;align-items:center!important;justify-content:center!important;gap:.75rem!important}
#empty.hidden,.empty.hidden{display:none!important}
.main-wrap.has-chat #empty{display:none!important}


/* litewebui-build-76 — force hide empty hero when chatting */
#empty.hidden,
.empty.hidden,
#empty[hidden],
.main-wrap.has-chat #empty,
.main-wrap.has-chat .empty,
body:has(.msg) #empty {
  display: none !important;
  visibility: hidden !important;
  opacity: 0 !important;
  height: 0 !important;
  max-height: 0 !important;
  overflow: hidden !important;
  margin: 0 !important;
  padding: 0 !important;
  pointer-events: none !important;
}

/* litewebui-build-77 — sidebar brand row symmetry */
.sb-top {
  padding: 0.7rem 0.7rem 0.35rem !important;
}
.sb-brand {
  display: flex !important;
  flex-direction: row !important;
  align-items: center !important;
  justify-content: flex-start !important;
  gap: 0.5rem !important;
  padding: 0.2rem 0.15rem 0.65rem !important;
  min-height: 2.25rem !important;
  width: 100% !important;
  box-sizing: border-box !important;
}
.sb-logo {
  width: 1.65rem !important;
  height: 1.65rem !important;
  min-width: 1.65rem !important;
  border-radius: 0.4rem !important;
  background: transparent !important;
  display: grid !important;
  place-items: center !important;
  flex-shrink: 0 !important;
  margin: 0 !important;
  padding: 0 !important;
  line-height: 0 !important;
  overflow: hidden !important;
}
.sb-logo .ds-logo-img {
  width: 1.45rem !important;
  height: 1.45rem !important;
  display: block !important;
  margin: 0 auto !important;
  object-fit: contain !important;
}
.sb-name {
  flex: 1 1 auto !important;
  min-width: 0 !important;
  margin: 0 !important;
  padding: 0 !important;
  font-size: 1.05rem !important;
  font-weight: 700 !important;
  letter-spacing: -0.02em !important;
  line-height: 1.65rem !important;
  height: 1.65rem !important;
  display: flex !important;
  align-items: center !important;
  transform: none !important;
  white-space: nowrap !important;
  overflow: hidden !important;
  text-overflow: ellipsis !important;
}
.sb-brand .sb-panel-btn,
.sb-brand #btn-sidebar-close {
  width: 1.85rem !important;
  height: 1.85rem !important;
  min-width: 1.85rem !important;
  margin: 0 0 0 auto !important;
  padding: 0 !important;
  display: grid !important;
  place-items: center !important;
  flex-shrink: 0 !important;
  border-radius: 0.5rem !important;
  align-self: center !important;
}
.sb-brand .sb-panel-btn svg {
  display: block !important;
  width: 1.15rem !important;
  height: 1.15rem !important;
}
.sb-new-chat {
  display: flex !important;
  align-items: center !important;
  gap: 0.55rem !important;
  width: 100% !important;
  box-sizing: border-box !important;
  min-height: 2.45rem !important;
  padding: 0.55rem 0.85rem !important;
  margin: 0 !important;
  line-height: 1.2 !important;
}
.sb-new-chat .sb-new-ico {
  flex-shrink: 0 !important;
  display: block !important;
  width: 1.15rem !important;
  height: 1.15rem !important;
}
.sb-new-chat span {
  line-height: 1.2 !important;
  display: inline-flex !important;
  align-items: center !important;
}

/* litewebui-build-79 — private: soft dim only, no blur */
body.private-mode .main-wrap::before {
  display: none !important;
}
body.private-mode .main-wrap::after {
  content: "" !important;
  pointer-events: none !important;
  position: absolute !important;
  inset: 0 !important;
  z-index: 30 !important;
  border-radius: inherit;
  background: rgba(0, 0, 0, 0.14) !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  filter: none !important;
}
html.theme-light body.private-mode .main-wrap::after,
html.light body.private-mode .main-wrap::after {
  background: rgba(30, 27, 50, 0.1) !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}
html.theme-dark body.private-mode .main-wrap::after,
html.dark body.private-mode .main-wrap::after {
  background: rgba(0, 0, 0, 0.22) !important;
}
body.private-mode .messages {
  filter: none !important;
}
body.private-mode .navbar,
body.private-mode .composer,
body.private-mode .voice-overlay {
  position: relative !important;
  z-index: 40 !important;
}
body.private-mode .messages {
  position: relative !important;
  z-index: 1 !important;
}


/* litewebui-build-80 — empty hero larger + precise; private exit OK in JS */
.empty-hero {
  display: flex !important;
  flex-direction: row !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 0.9rem !important;
}
.empty-mark,
.empty-avatar,
#empty-avatar {
  width: 3.5rem !important;
  height: 3.5rem !important;
  min-width: 3.5rem !important;
  min-height: 3.5rem !important;
  border-radius: 9999px !important;
  background: #fff !important;
  box-shadow: 0 2px 12px rgba(15, 23, 42, 0.08) !important;
  display: grid !important;
  place-items: center !important;
  overflow: hidden !important;
  flex-shrink: 0 !important;
  margin: 0 !important;
  padding: 0 !important;
  line-height: 0 !important;
}
.empty-avatar .ds-logo-img,
.empty-mark .ds-logo-img,
#empty-avatar .ds-logo-img {
  width: 2rem !important;
  height: 2rem !important;
  display: block !important;
  margin: 0 !important;
  object-fit: contain !important;
}
html.theme-dark .empty-avatar,
html.dark .empty-avatar,
html.theme-dark #empty-avatar,
html.dark #empty-avatar {
  background: #2a2a2a !important;
  box-shadow: none !important;
}
.empty-title,
#empty-title {
  margin: 0 !important;
  padding: 0 !important;
  font-size: clamp(2rem, 4.2vw, 2.55rem) !important;
  font-weight: 700 !important;
  letter-spacing: -0.04em !important;
  line-height: 3.5rem !important;
  height: 3.5rem !important;
  display: flex !important;
  align-items: center !important;
  color: #4D6BFE !important;
  -webkit-text-fill-color: #4D6BFE !important;
  transform: none !important;
}
.empty-inner {
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 0.35rem !important;
}

/* litewebui-build-81 — empty hero optical precision */
.empty {
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
}
.empty.hidden,
#empty.hidden {
  display: none !important;
}
.empty-inner {
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  justify-content: center !important;
  width: auto !important;
  max-width: 100% !important;
  margin: 0 auto !important;
  padding: 0 !important;
  gap: 0 !important;
  transform: translateY(-6vh) !important;
}
.empty-hero {
  display: inline-flex !important;
  flex-direction: row !important;
  flex-wrap: nowrap !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 0.85rem !important;
  margin: 0 !important;
  padding: 0 !important;
  width: auto !important;
  max-width: none !important;
  line-height: 0 !important;
}
.empty-mark,
.empty-avatar,
#empty-avatar {
  box-sizing: border-box !important;
  width: 3.25rem !important;
  height: 3.25rem !important;
  min-width: 3.25rem !important;
  max-width: 3.25rem !important;
  min-height: 3.25rem !important;
  max-height: 3.25rem !important;
  margin: 0 !important;
  padding: 0 !important;
  border: none !important;
  border-radius: 9999px !important;
  background: #ffffff !important;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.06), 0 4px 14px rgba(15, 23, 42, 0.06) !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  flex: 0 0 3.25rem !important;
  overflow: hidden !important;
  line-height: 0 !important;
  vertical-align: middle !important;
}
.empty-avatar .ds-logo-img,
.empty-mark .ds-logo-img,
#empty-avatar img,
#empty-avatar .ds-logo-img {
  box-sizing: border-box !important;
  width: 1.75rem !important;
  height: 1.75rem !important;
  min-width: 1.75rem !important;
  min-height: 1.75rem !important;
  margin: 0 !important;
  padding: 0 !important;
  border: 0 !important;
  display: block !important;
  object-fit: contain !important;
  object-position: center !important;
  flex-shrink: 0 !important;
}
html.theme-dark .empty-avatar,
html.dark .empty-avatar,
html.theme-dark #empty-avatar,
html.dark #empty-avatar {
  background: #2f2f2f !important;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.35) !important;
}
.empty-title,
#empty-title {
  box-sizing: border-box !important;
  margin: 0 !important;
  padding: 0 !important;
  border: 0 !important;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", sans-serif !important;
  font-size: 2.15rem !important;
  font-weight: 700 !important;
  letter-spacing: -0.045em !important;
  line-height: 1 !important;
  height: auto !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  color: #4D6BFE !important;
  -webkit-text-fill-color: #4D6BFE !important;
  transform: none !important;
  white-space: nowrap !important;
  vertical-align: middle !important;
}
html.theme-dark .empty-title,
html.dark .empty-title,
html.theme-dark #empty-title,
html.dark #empty-title {
  color: #6B8CFF !important;
  -webkit-text-fill-color: #6B8CFF !important;
}
@media (max-width: 480px) {
  .empty-title,
  #empty-title {
    font-size: 1.75rem !important;
  }
  .empty-mark,
  .empty-avatar,
  #empty-avatar {
    width: 2.85rem !important;
    height: 2.85rem !important;
    min-width: 2.85rem !important;
    max-width: 2.85rem !important;
    min-height: 2.85rem !important;
    max-height: 2.85rem !important;
    flex-basis: 2.85rem !important;
  }
  .empty-avatar .ds-logo-img,
  #empty-avatar img {
    width: 1.55rem !important;
    height: 1.55rem !important;
  }
  .empty-hero {
    gap: 0.7rem !important;
  }
}