:focus {
  outline: none;
}

:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.4);
  outline-offset: 2px;
}

textarea:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: none;
}

html {
  background: #000000;
  height: 100%;
  height: 100dvh;
  overflow: hidden;
  overscroll-behavior: none;

  color-scheme: dark;
}

:root {
  --system-raised: #0a0a0a;
  --label-primary: #e0e0e0;
  --label-secondary: #999;
  --label-tertiary: #666;
  --fill-primary: #1a1a1a;
  --fill-secondary: #252525;

  --divider: 1px solid rgba(255, 255, 255, 0.14);
  --separator-thin: rgba(255, 255, 255, 0.06);

  --border-strong: rgba(255, 255, 255, 0.16);
  --scrollbar-size: 8px;
  --scrollbar-track-bg: #1a1a1a;
  --scrollbar-thumb-color: #333;
  --scrollbar-thumb-radius: 4px;
  --ease-standard: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-emphasized: cubic-bezier(0.2, 0, 0, 1);

  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 0.75rem;
  --space-lg: 1rem;
  --space-xl: 1.5rem;
  --space-2xl: 2rem;

  --z-panel-close: 5;
  --z-dropdown: 20;
  --z-sidebar-hover-zone: 24;
  --z-sidebar-toggle: 25;
  --z-sidebar: 30;
  --z-settings: 1001;
  --z-modal: 1002;
  --z-dropdown-overlay: 1003;
  --z-image-viewer: 1100;
  --z-toast: 1200;
}

body {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;

  overflow-x: clip;

  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
  scrollbar-width: none;
  -webkit-tap-highlight-color: transparent;
}

.app {
  display: flex;
  flex-direction: column;
  height: 100vh;

  height: var(--app-height, 100dvh);
  padding-top: env(safe-area-inset-top, 0px);
  position: relative;
  overflow: hidden;
  overscroll-behavior: none;
  touch-action: none;
}

.chat-panels {
  flex: 1;
  display: flex;
  overflow: hidden;
}

.chat-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  position: relative;
  overflow: hidden;
}

.chat-panel.split-h {
  border-right: var(--divider);
}

.split-resizer {
  flex: 0 0 7px;
  cursor: col-resize;
  background: transparent;
  border-radius: 4px;
  transition: background 0.15s var(--ease-standard);
}

.split-resizer:hover {
  background: rgba(255, 255, 255, 0.14);
}

.messages {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: #333 #1a1a1a;
  padding: var(--space-md) 0;
  overscroll-behavior: contain;
  touch-action: pan-y;

  -webkit-overflow-scrolling: touch;
}

.messages::-webkit-scrollbar {
  width: var(--scrollbar-size);
}
.messages::-webkit-scrollbar-track {
  background: var(--scrollbar-track-bg);
}
.messages::-webkit-scrollbar-thumb {
  background-color: var(--scrollbar-thumb-color);
  border-radius: var(--scrollbar-thumb-radius);
}

.messages-inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.message {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  width: 100%;
  max-width: none;
  position: relative;
  animation: slideIn 0.3s var(--ease-standard);

  content-visibility: auto;
  contain-intrinsic-size: auto 120px;
}

.message.user {
  align-self: flex-end;
  align-items: flex-end;
  max-width: min(85%, 640px);
}

.message.user .message-bubble {
  width: auto;
  max-width: 100%;
  background: var(--fill-primary);
  border: 1px solid var(--border-strong);
  border-radius: 18px;
  padding: var(--space-sm) var(--space-lg);
  font-size: 1rem;
  line-height: 1.45;
  word-wrap: break-word;
  overflow-wrap: break-word;
  white-space: pre-wrap;
  position: relative;
  user-select: text;
  caret-color: #e0e0e0;
}

.message.assistant {
  align-self: stretch;
  align-items: stretch;
}

.message.assistant .message-bubble {
  width: 100%;
  background: transparent;
  border: none;
  border-radius: 0;

  font-size: 1.05rem;
  line-height: 1.65;
  color: #ececec;
  word-wrap: break-word;
  overflow-wrap: break-word;
  white-space: pre-wrap;
  position: relative;
  user-select: text;
  caret-color: #e0e0e0;
}

.reasoning-block {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  min-width: 0;
}

.reasoning-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) 0;
  cursor: pointer;
  color: var(--label-secondary);
  -webkit-user-select: none;
  user-select: none;
}

.reasoning-header:hover {
  color: var(--label-primary);
}

.reasoning-orb {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  flex: none;
}

.reasoning-label {
  font-size: 0.8rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
  display: inline-grid;
  text-align: left;
}

/* Thinking states + streaming text (transitions.dev by Jakub Antalik,
   free snippets adapted for the dark microchat theme: left-aligned lines
   hug content via grid stacking instead of a fixed sizer, and the shimmer
   runs only while the block is live). */
:root {
  --think-swap: 150ms;
  --think-gap: 50ms;
  --think-distance: 8px;
  --think-blur: 2px;
  --think-shimmer: 2000ms;
  --think-base: var(--label-secondary);
  --think-highlight: #ffffff;
  --think-ease: ease-in-out;
  --stream-gap: 35ms;
  --stream-fade: 220ms;
  --stream-blur: 2px;
  --stream-ease: cubic-bezier(0.22, 1, 0.36, 1);
}
.t-think-text {
  grid-area: 1 / 1;
  position: relative;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--think-base);
  transform: translateY(0);
  filter: blur(0);
  opacity: 1;
  transition:
    transform var(--think-swap) var(--think-ease),
    filter var(--think-swap) var(--think-ease),
    opacity var(--think-swap) var(--think-ease);
  will-change: transform, filter, opacity;
}
/* Shimmer sweeps the glyphs only (background-clip: text) while a state holds. */
.reasoning-block.live .t-think-text::before {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(
    90deg,
    transparent 0%,
    transparent 40%,
    var(--think-highlight) 50%,
    transparent 60%,
    transparent 100%
  );
  background-size: 400% 100%;
  background-repeat: no-repeat;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  animation: t-think-shimmer var(--think-shimmer) linear infinite;
}
@keyframes t-think-shimmer {
  0% {
    background-position: 100% 0;
  }
  100% {
    background-position: 0% 0;
  }
}
/* The outgoing line floats over the box so both halves animate. */
.t-think-text.is-exit {
  transform: translateY(calc(var(--think-distance) * -1));
  filter: blur(var(--think-blur));
  opacity: 0;
}
.t-think-text.is-enter-start {
  transition: none;
  transform: translateY(var(--think-distance));
  filter: blur(var(--think-blur));
  opacity: 0;
}
/* Streamed words rest resolved; new words cross-blur into place. */
.t-stream-w {
  opacity: 0;
  filter: blur(var(--stream-blur));
}
.t-stream-w.is-in {
  opacity: 1;
  filter: blur(0);
  transition:
    opacity var(--stream-fade) var(--stream-ease),
    filter var(--stream-fade) var(--stream-ease);
}

@media (prefers-reduced-motion: reduce) {
  .t-think-text {
    transition: none !important;
    transform: none !important;
    filter: none !important;
  }
  .t-think-text::before {
    display: none !important;
  }
  .t-stream-w {
    transition: none !important;
    filter: none !important;
    opacity: 1 !important;
  }
}

.reasoning-block.done .reasoning-orb {
  display: none;
}

.reasoning-block.sealed {
  display: none;
}

.reasoning-chevron {
  margin-left: auto;
  display: inline-flex;
  color: var(--label-tertiary);
  transition: transform 0.2s var(--ease-standard);
}

.reasoning-block.expanded .reasoning-chevron {
  transform: rotate(180deg);
}

.reasoning-body {
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--label-secondary);
  border-left: 2px solid var(--separator-thin);
  padding-left: var(--space-md);
  min-width: 0;
}

.reasoning-block:not(.expanded) .reasoning-body {
  display: none;
}

.reasoning-block.expanded .reasoning-body {
  display: block;
}

.reasoning-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}
.reasoning-text:empty {
  display: none;
}
.reasoning-text-seg {
  white-space: pre-wrap;
  word-wrap: break-word;
  overflow-wrap: break-word;
  -webkit-user-select: text;
  user-select: text;
}

.reasoning-body.overflowing {
  -webkit-mask-image: linear-gradient(to bottom, transparent 0, #000 22px);
  mask-image: linear-gradient(to bottom, transparent 0, #000 22px);
}

.reasoning-block.expanded .reasoning-body.overflowing {
  -webkit-mask-image: none;
  mask-image: none;
}

.message-bubble.stream-pending {
  display: block;
  visibility: visible;
}

@keyframes bubbleIn {
  from {
    opacity: 0;
    transform: translateY(3px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.message-bubble.revealed {
  animation: bubbleIn 0.25s var(--ease-standard);
}

.message.streaming .msg-actions {
  display: none;
}

.message-bubble > :first-child {
  margin-top: 0;
}
.message-bubble > :last-child {
  margin-bottom: 0;
}
.message-bubble p {
  margin: 0 0 0.35em;
}
.message-bubble ul,
.message-bubble ol {
  margin: 0 0 0.35em;
  padding-left: 1.4em;
}
.message-bubble li {
  margin: 0.15em 0;
}
.message-bubble h1,
.message-bubble h2,
.message-bubble h3,
.message-bubble h4,
.message-bubble h5,
.message-bubble h6 {
  font-weight: 600;
  line-height: 1.3;
  margin: 0.8em 0 0.4em;
}
.message-bubble h1 {
  font-size: 1.6em;
}
.message-bubble h2 {
  font-size: 1.4em;
}
.message-bubble h3 {
  font-size: 1.2em;
}
.message-bubble h4,
.message-bubble h5,
.message-bubble h6 {
  font-size: 1.05em;
}
.message-bubble code {
  background: #1a1a1a;
  border: 1px solid #252525;
  border-radius: 4px;
  padding: 0.12em 0.35em;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.85em;
}
.message-bubble pre {
  position: relative;
  background: #0a0a0a;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  padding: var(--space-md);

  padding-right: calc(var(--space-md) + 36px);
  margin: 0 0 0.5em;
  overflow-x: auto;
  white-space: pre;
}
.message-bubble pre code {
  background: transparent;
  border: none;
  padding: 0;
  font-size: 0.85rem;
}
.code-copy-btn {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  background: var(--fill-secondary);
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  color: var(--label-secondary);
  opacity: 0.55;
  cursor: pointer;
  touch-action: manipulation;
  transition:
    opacity 0.15s var(--ease-standard),
    color 0.15s var(--ease-standard);
}
.message-bubble pre:hover .code-copy-btn,
.code-copy-btn:focus-visible {
  opacity: 1;
}
.code-copy-btn:hover {
  color: var(--label-primary);
}
.code-copy-btn.copied {
  color: #4ade80;
  opacity: 1;
}
.message-bubble a {
  color: #ffffff;
  text-decoration: underline;
  word-break: break-word;
}
.message-bubble blockquote {
  border-left: 2px solid #333;
  padding-left: var(--space-md);
  margin: 0 0 0.5em;
  color: #999;
}
.message-bubble table {
  border-collapse: collapse;
  margin: 0 0 0.5em;
  max-width: 100%;
  display: block;
  overflow-x: auto;
}
.message-bubble th,
.message-bubble td {
  border: 1px solid #333;
  padding: var(--space-xs) var(--space-sm);
  text-align: left;
}
.message-bubble img {
  max-width: 100%;
  border-radius: 8px;
}
.message-bubble .mermaid-diagram {
  max-width: 100%;
  margin: 0 0 0.5em;
  overflow-x: auto;
  padding: var(--space-sm);
  background: #0a0a0a;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
}
.message-bubble .mermaid-diagram svg {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
}
.message-bubble hr {
  border: none;
  border-top: var(--divider);
  margin: 0.75em 0;
}

.message-bubble .collapsible-header {
  cursor: pointer;
  user-select: none;
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.4em;
  border-radius: 6px;
  margin-left: -4px;
  padding-left: 4px;
  transition:
    background 0.2s var(--ease-standard),
    color 0.2s var(--ease-standard);
}

.message-bubble .collapsible-header:hover {
  background: rgba(255, 255, 255, 0.04);
}

.message-bubble .collapsible-header:active {
  background: rgba(255, 255, 255, 0.07);
  transform: scale(0.998);
}

.message-bubble .collapsible-header::before {
  content: "▸";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  font-size: 0.68em;
  line-height: 1;
  color: var(--label-tertiary);
  background: rgba(255, 255, 255, 0.06);
  border-radius: 4px;
  transition:
    transform 0.32s var(--ease-emphasized),
    color 0.2s var(--ease-standard),
    background 0.2s var(--ease-standard);
}

.message-bubble .collapsible-header:hover::before {
  color: var(--label-primary);
  background: rgba(255, 255, 255, 0.1);
}

.message-bubble .collapsible-header.expanded::before {
  transform: rotate(90deg);
  color: var(--label-primary);
  background: rgba(255, 255, 255, 0.12);
}

.message-bubble .collapsible-header.collapsed::before {
  transform: rotate(0deg);
}

.message-bubble .collapsible-content {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  transform: translateY(-4px);
  transition:
    grid-template-rows 0.38s var(--ease-emphasized),
    opacity 0.32s var(--ease-standard),
    transform 0.32s var(--ease-standard);
}

.message-bubble .collapsible-content.expanded {
  grid-template-rows: 1fr;
  opacity: 1;
  transform: translateY(0);
}

.message-bubble .collapsible-content.collapsed {
  grid-template-rows: 0fr;
  opacity: 0;
  transform: translateY(-4px);
}

.message-bubble .collapsible-inner {
  overflow: hidden;
  min-height: 0;

  transition: opacity 0.28s var(--ease-standard);
}

.message-bubble .collapsible-content.collapsed .collapsible-inner {
  opacity: 0.7;
}

.message-bubble .collapsible-content.expanded .collapsible-inner {
  opacity: 1;
}

.message-bubble .katex {
  font-size: 1.05em;
}

.message-bubble .katex-display {
  margin: 0.75em 0;
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 0.15em 0;
}

.bottom-bar {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: #000000;
  border-top: var(--divider);
  /* --sab is the load-time bottom safe-area snapshot (see lockSafeAreaBottom
     in script.js). The live env() value grows permanently after the first
     keyboard cycle in mobile Safari (toolbar hides -> home indicator zone),
     which used to push the composer AND sidebar FABs down forever.
     SYSTEM RULE: every resting bottom inset in this file uses
     var(--sab, env(safe-area-inset-bottom, 0px)) — never the bare env().
     --kb-inset is purely an ADDITIVE keyboard dock offset (0 at rest), so
     opening/closing the keyboard only adds/removes the keyboard height and
     resting geometry is identical before, during, and after typing. */
  padding-bottom: var(--sab, env(safe-area-inset-bottom, 0px));
}

.bottom-bar-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-xl) var(--space-xs);
  max-width: 800px;
  width: 100%;
  margin: 0 auto;
}

.bar-group-left {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  min-width: 0;
}

.bar-group-right {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-left: auto;
  min-width: 0;
}

.composer {
  display: flex;
  align-items: flex-end;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-xl) var(--space-md);
  max-width: 800px;
  width: 100%;
  margin: 0 auto;
}

.composer textarea {
  flex: 1;
  background: #0a0a0a;
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  color: #e0e0e0;
  font-family: inherit;
  font-size: 0.95rem;
  resize: none;
  padding: var(--space-sm) var(--space-lg);
  min-height: 44px;
  max-height: 200px;
  line-height: 1.5;
  overflow-y: hidden;
  transition: border-color 0.2s var(--ease-standard);
}

.composer textarea:focus {
  border-color: rgba(255, 255, 255, 0.3);
}

.composer textarea::placeholder {
  color: #666;
}

.composer textarea::selection {
  background: #555;
}

.send-btn {
  height: 48px;
  width: 48px;
  min-height: 48px;
  min-width: 48px;
  max-height: 48px;
  max-width: 48px;
  flex: 0 0 48px;
  align-self: flex-end;
  aspect-ratio: 1 / 1;
  border-radius: 12px;
  background: #1a1a1a;
  border: 1px solid #333;
  color: #e0e0e0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    background 0.2s var(--ease-standard),
    transform 0.2s var(--ease-standard);
  flex-shrink: 0;
  touch-action: manipulation;
}

.send-btn:hover {
  background: #252525;
  transform: scale(1.05);
}

.send-btn:active {
  transform: scale(0.95);
}

.send-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.send-btn.stop {
  border-color: #555;
}

.send-btn.upload-blocked {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

.attach-btn {
  height: 48px;
  width: 48px;
  min-height: 48px;
  min-width: 48px;
  max-height: 48px;
  max-width: 48px;
  flex: 0 0 48px;
  align-self: flex-end;
  aspect-ratio: 1 / 1;
  border-radius: 12px;
  background: transparent;
  border: 1px solid transparent;
  color: #777;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition:
    color 0.2s var(--ease-standard),
    background 0.2s var(--ease-standard);
  touch-action: manipulation;
}

.attach-btn:hover {
  color: #e0e0e0;
  background: #141414;
}

.composer.drag-over textarea {
  border-color: #555;
  border-style: dashed;
}

.attachment-tray {
  display: flex;
  align-items: flex-end;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-xl) 0;
  max-width: 800px;
  width: 100%;
  margin: 0 auto;
  overflow-x: auto;
  scrollbar-width: none;
}

.attachment-thumb {
  position: relative;
  flex-shrink: 0;
  width: 72px;
  height: 72px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid #2a2a2a;
  background: #0a0a0a;
  cursor: pointer;
}

.attachment-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.attachment-thumb.upload-error {
  border-color: #c0392b;
}

.attachment-remove {
  position: absolute;
  top: 3px;
  right: 3px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: none;
  background: rgba(0, 0, 0, 0.65);
  color: #e0e0e0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  z-index: 2;
}

.attachment-remove:hover {
  background: rgba(0, 0, 0, 0.85);
}

.attachment-progress {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.attachment-progress svg {
  display: block;
  transform: rotate(-90deg);
}

.attachment-progress .ring-track {
  fill: none;
  stroke: rgba(255, 255, 255, 0.22);
  stroke-width: 3;
}

.attachment-progress .ring-fill {
  fill: none;
  stroke: #e0e0e0;
  stroke-width: 3;
  stroke-linecap: round;
  transition: stroke-dashoffset 0.15s linear;
}

.attachment-progress .ring-label {
  position: absolute;
  bottom: 4px;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 0.6rem;
  color: #e0e0e0;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
}

.attachment-thumb.upload-done .attachment-progress {
  display: none;
}

.msg-images {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.msg-image {
  max-width: 220px;
  max-height: 220px;
  border-radius: 8px;
  border: 1px solid #2a2a2a;
  cursor: zoom-in;
  display: block;
  object-fit: contain;
}

.msg-vision-note {
  width: 100%;
  font-size: 0.65rem;
  color: #777;
}

.image-viewer {
  position: fixed;
  inset: 0;
  z-index: var(--z-image-viewer);
  background: rgba(0, 0, 0, 0.88);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
  transition:
    opacity 0.25s var(--ease-standard),
    visibility 0s linear 0.25s;
}

.image-viewer.visible {
  opacity: 1;
  pointer-events: all;
  visibility: visible;
  transition:
    opacity 0.25s var(--ease-standard),
    visibility 0s;
}

.image-viewer-img {
  max-width: 96vw;
  max-height: 96vh;
  max-height: 96dvh;
  border-radius: 4px;
  cursor: default;
  object-fit: contain;
}

.image-viewer-close {
  position: absolute;
  top: calc(var(--space-lg) + env(safe-area-inset-top, 0px));
  right: var(--space-lg);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(20, 20, 20, 0.8);
  border: 1px solid #333;
  color: #e0e0e0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.image-viewer-close:hover {
  background: rgba(40, 40, 40, 0.9);
}

.panel-close-btn {
  position: absolute;
  right: var(--space-md);
  bottom: var(--space-md);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #1a1a1a;
  border: 1px solid #333;
  color: #e0e0e0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-panel-close);
  transition:
    background 0.2s var(--ease-standard),
    transform 0.2s var(--ease-standard);
  flex-shrink: 0;
  touch-action: manipulation;
}

.panel-close-btn:hover {
  background: #252525;
  transform: scale(1.05);
}

.panel-close-btn svg {
  transition: transform 0.25s var(--ease-standard);
}

.panel-close-btn:hover svg {
  transform: rotate(90deg);
}

.panel-close-btn:active svg {
  transform: rotate(180deg);
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.sidebar-hover-zone {
  position: fixed;
  top: 0;
  left: 0;
  width: 54px;
  height: 100vh;
  z-index: var(--z-sidebar-hover-zone);
  display: none;

  pointer-events: none;
}

.sidebar-open-btn {
  position: fixed;
  top: calc(var(--space-md) + env(safe-area-inset-top, 0px));
  left: var(--space-md);
  right: auto;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #0a0a0a;
  border: 1px solid var(--border-strong);
  color: #666;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-sidebar-toggle);
  touch-action: manipulation;
}

.sidebar-open-btn:hover {
  color: #e0e0e0;
  background: #1a1a1a;
}

.sidebar-open-btn:active {
  color: #fff;
}

.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: 280px;
  height: 100vh;
  height: 100dvh;
  background: #0a0a0a;
  border-right: var(--divider);
  transform: translateX(-100%);
  transition: transform 0.3s var(--ease-standard);
  z-index: var(--z-sidebar);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.sidebar.open {
  transform: translateX(0);
  box-shadow: 4px 0 15px rgba(0, 0, 0, 0.3);
}

.sidebar.dragging {
  transition: none;
}

.sidebar-scrim {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  z-index: calc(var(--z-sidebar) - 1);
  pointer-events: none;
  transition:
    opacity 0.3s var(--ease-standard),
    visibility 0s linear 0.3s;
}

.sidebar-scrim.visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition: opacity 0.3s var(--ease-standard);
}

@media (hover: hover) and (pointer: fine) {
  .sidebar-scrim {
    display: none !important;
  }
}

.sidebar-resize-handle {
  display: none;
}

@media (hover: hover) and (pointer: fine) and (min-width: 769px) {
  .sidebar-resize-handle {
    display: block;
    position: absolute;
    top: 0;
    right: 0;
    width: 7px;
    height: 100%;
    cursor: col-resize;
    z-index: 2;
  }

  .sidebar-resize-handle::after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    width: 1px;
    height: 100%;
    background: transparent;
    transition: background 0.15s var(--ease-standard);
  }

  .sidebar-resize-handle:hover::after,
  .sidebar.resizing .sidebar-resize-handle::after {
    background: #444;
  }
}

body.sidebar-resizing {
  cursor: col-resize;
  user-select: none;
  -webkit-user-select: none;
}

.sidebar.resizing {
  transition: none;
}

.sidebar-top {
  display: flex;
  align-items: center;
  padding: calc(var(--space-sm) + env(safe-area-inset-top, 0px)) var(--space-sm)
    var(--space-sm);
  border-bottom: var(--divider);
}

.sidebar-top-spacer {
  flex: 1;
}

.sidebar-settings-btn {
  color: #999;
}

.sidebar-settings-btn svg {
  opacity: 0.7;
  transition:
    opacity 0.2s var(--ease-standard),
    transform 0.25s var(--ease-standard);
}

.sidebar-settings-btn:hover svg {
  opacity: 1;
  transform: rotate(45deg);
}

.sidebar-settings-btn:active svg {
  transform: rotate(90deg);
}

.mobile-only {
  display: none;
}

.icon-btn {
  background: transparent;
  border: none;
  color: #666;
  cursor: pointer;
  padding: var(--space-xs);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  touch-action: manipulation;
}

.icon-btn:hover {
  color: #e0e0e0;
  background: #1a1a1a;
}

.icon-btn:active {
  color: #fff;
}

.conversation-list {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding: 0;
  overscroll-behavior: contain;
  overflow-anchor: none;
  touch-action: pan-y;
}

.conversation-list::-webkit-scrollbar {
  display: none;
}

.conversation-item {
  display: flex;
  align-items: center;
  padding: var(--space-sm) var(--space-lg);
  cursor: pointer;
  transition: background 0.2s var(--ease-standard);
  gap: var(--space-sm);
  border-bottom: var(--divider);
  position: relative;
}

.conversation-item:hover {
  background: #1a1a1a;
}

.conversation-item.active {
  background: #1a1a1a;
}

.conversation-item.active::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: #555;
}

.conversation-title {
  flex: 1;
  min-width: 0;
  font-size: 1.05rem;
  line-height: 1.5rem;
  color: #e0e0e0;
  overflow: hidden;
  text-overflow: clip;
  white-space: nowrap;
  transition: margin-right 0.15s var(--ease-standard);
}

/* Fade-out applies ONLY when the text actually overflows (JS toggles
   .overflowing via scrollWidth check). An unconditional mask faded the
   last 12px of titles that fit fine, looking like a wrong cutoff. */
.conversation-title.overflowing {
  -webkit-mask-image: linear-gradient(
    to right,
    #000 calc(100% - 12px),
    transparent 100%
  );
  mask-image: linear-gradient(
    to right,
    #000 calc(100% - 12px),
    transparent 100%
  );
}

.conversation-item.pinned .conversation-title {
  margin-right: 1.6rem;
}

.conversation-item:hover .conversation-title,
.conversation-item:focus-within .conversation-title {
  margin-right: 4.5rem;
}

.conversation-title.editing-title {
  outline: 1px solid #333;
  border-radius: 4px;
  white-space: nowrap;
  overflow: visible;
  -webkit-mask-image: none;
  mask-image: none;
}

.conversation-actions {
  position: absolute;
  right: var(--space-xs);
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  gap: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s var(--ease-standard);
}

.conversation-item:hover .conversation-actions,
.conversation-item:focus-within .conversation-actions {
  opacity: 1;
  pointer-events: auto;
}

.conversation-item.pinned .conversation-actions.has-pinned {
  opacity: 1;
  pointer-events: auto;
}

.conversation-item:not(:hover):not(:focus-within)
  .conversation-actions.has-pinned
  .conversation-action-btn:not(.pin-btn),
.conversation-item:not(:hover):not(:focus-within)
  .conversation-actions.has-pinned
  .conversation-action-btn:not(.pin-btn)
  * {
  pointer-events: none;
}

.conversation-item.pinned
  .conversation-actions.has-pinned
  .conversation-action-btn.pin-btn {
  opacity: 1;
}

.conversation-actions .conversation-action-btn:not(.pin-btn) {
  max-width: 0;
  padding-left: 0;
  padding-right: 0;
  opacity: 0;
  overflow: hidden;
  pointer-events: none;
  transition:
    opacity 0.15s var(--ease-standard),
    max-width 0.15s var(--ease-standard),
    padding 0.15s var(--ease-standard),
    color 0.15s var(--ease-standard),
    transform 0.15s var(--ease-standard);
}

.conversation-item:hover .conversation-action-btn:not(.pin-btn),
.conversation-item:focus-within .conversation-action-btn:not(.pin-btn) {
  max-width: 1.75rem;
  padding-left: 0.25rem;
  padding-right: 0.25rem;
  opacity: 1;
  pointer-events: auto;
}

.conversation-actions .conversation-action-btn + .conversation-action-btn {
  margin-left: 0;
  transition: margin-left 0.15s var(--ease-standard);
}

.conversation-item:hover .conversation-action-btn + .conversation-action-btn,
.conversation-item:focus-within
  .conversation-action-btn
  + .conversation-action-btn {
  margin-left: 0.25rem;
}

.conversation-action-btn {
  background: transparent;
  border: none;
  color: #999;
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.conversation-action-btn:hover {
  color: #e0e0e0;
  background: transparent;
}

.conversation-action-btn.pin-btn.pinned {
  color: #e0e0e0;
}

.conversation-action-btn:hover {
  color: #e0e0e0;
}

.conversation-action-btn.pin-btn.pinned {
  color: #e0e0e0;
}

.conversation-item.pinned .conversation-actions {
  opacity: 1;
  pointer-events: auto;
}

.sidebar-fabs {
  display: flex;
  justify-content: space-between;
  gap: var(--space-sm);
  /* Same load-time snapshot as .bottom-bar: live env() grows after the
     first keyboard cycle and used to strand the FABs mid-drawer. */
  padding: var(--space-md) var(--space-lg)
    calc(var(--space-lg) + var(--sab, env(safe-area-inset-bottom, 0px)));
}

.fab-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #1a1a1a;
  border: 1px solid #333;
  color: #e0e0e0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    background 0.2s var(--ease-standard),
    transform 0.2s var(--ease-standard);
  flex-shrink: 0;
}

.fab-btn.fab-temp {
  background: transparent;
  border: 2px dashed #555;
  color: #999;
}

.fab-btn:hover {
  background: #252525;
}

.fab-btn:active {
  transform: scale(0.95);
}

.fab-primary {
  width: 52px;
  height: 52px;
  background: #1a1a1a;
  border: 1px solid #555;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

.fab-primary:hover {
  background: #252525;
}

.fab-primary:active {
  transform: scale(0.95);
}

.fab-temp:hover {
  background: transparent;
}

.fab-btn svg {
  transition: transform 0.25s var(--ease-standard);
}

.fab-btn:hover svg {
  transform: rotate(90deg);
}

.fab-btn:active svg {
  transform: rotate(180deg);
}

.picker-btn {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  min-width: 0;
  background: transparent;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  color: #e0e0e0;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.9rem;
  padding: var(--space-xs) var(--space-sm);
  max-width: min(600px, 65vw);
  touch-action: manipulation;
}

.picker-btn svg {
  flex-shrink: 0;
}

.picker-btn:hover {
  border-color: #444;
  background: #1a1a1a;
}

.picker-label {
  min-width: 0;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: none;
}

.dropdown {
  position: fixed;
  bottom: auto;
  left: var(--space-lg);
  width: auto;
  min-width: 110px;
  max-width: 320px;
  max-height: 400px;
  background: #0a0a0a;
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  z-index: var(--z-dropdown);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: slideIn 0.2s var(--ease-standard);
}

.dropdown.hidden {
  display: none;
}

.dropdown.dropdown-wide {
  width: 320px;
}

.dropdown.dropdown-overlay {
  z-index: var(--z-dropdown-overlay);
  padding: var(--space-xs) 0;
}

.dropdown-check {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  color: #e0e0e0;
}

.new-personality-item .model-name {
  color: #e0e0e0;
}

.dropdown-search {
  padding: var(--space-sm);
  border-bottom: var(--divider);
}

.dropdown-search input {
  width: 100%;
  background: #000;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  color: #e0e0e0;
  font-family: inherit;
  font-size: 0.85rem;
  padding: var(--space-sm) var(--space-sm);
}

.dropdown-search input:focus {
  border-color: #333;
}

.dropdown-search input::placeholder {
  color: #666;
}

.dropdown-list {
  flex: 1;
  overflow-y: auto;
  scrollbar-width: none;
  padding: var(--space-xs) 0;
  overscroll-behavior: contain;
  touch-action: pan-y;
}

.dropdown-list::-webkit-scrollbar {
  display: none;
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  cursor: pointer;
  transition: background 0.15s var(--ease-standard);
  font-size: 0.95rem;
  color: #e0e0e0;
}

.dropdown-item:hover {
  background: #1a1a1a;
}

.dropdown-item.active {
  background: #1a1a1a;
}

.dropdown-item.dragging {
  opacity: 0.4;
}

.dropdown-item.reordering {
  opacity: 0.9;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  background: #1a1a1a;
  border-radius: 8px;
  transition:
    box-shadow 0.2s var(--ease-standard),
    background 0.2s var(--ease-standard);
}

body.dragging-in-progress,
body.dragging-in-progress * {
  user-select: none;
}

.dropdown-item .model-name {
  flex: 1;
  min-width: 0;
  font-size: clamp(0.4rem, 1.8vw, 0.88rem);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.dropdown-item .favorite-star {
  color: #666;
  flex-shrink: 0;
}

.dropdown-item .favorite-star.active {
  color: #e0e0e0;
}

.dropdown-item .rename-btn {
  background: transparent;
  border: none;
  color: #666;
  cursor: pointer;
  padding: var(--space-xs);
  border-radius: 4px;
  display: flex;
  align-items: center;
}

.dropdown-item .rename-btn:hover {
  color: #e0e0e0;
}

.model-router-chain-row .rename-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
  border-radius: 4px;
  display: flex;
  align-items: center;
  transition:
    color 0.2s var(--ease-standard),
    transform 0.15s var(--ease-standard);
}

.model-router-chain-row .rename-btn:hover {
  color: #e0e0e0;
}

.model-router-chain-row .rename-btn:active {
  transform: scale(0.85);
}

.dropdown-item .model-name.editing-model {
  outline: 1px solid #333;
  border-radius: 3px;
  white-space: nowrap;
  overflow: visible;
  min-width: 40px;
  user-select: text;
}

.settings-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-settings);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s var(--ease-emphasized);
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: flex-end;
  justify-content: center;

  padding-bottom: calc(
    var(--sab, env(safe-area-inset-bottom, 0px)) +
    var(--kb-inset, 0px)
  );
}

.settings-overlay.visible {
  opacity: 1;
  pointer-events: all;
}

.settings-box {
  background: #0a0a0a;
  border: 1px solid var(--border-strong);
  border-radius: 16px;
  width: calc(100% - 32px);
  max-width: 520px;
  height: 85vh;
  height: 85dvh;
  overflow-y: auto;

  overscroll-behavior: contain;
  touch-action: pan-y;
  scrollbar-width: none;
  padding: var(--space-2xl);
  padding-bottom: calc(
    var(--space-2xl) +
    var(--sab, env(safe-area-inset-bottom, 0px))
  );
  transform: translateY(
      calc(100% + var(--sab, env(safe-area-inset-bottom, 0px)))
    )
    scale(0.92);
  transition: transform 0.4s var(--ease-emphasized);
  margin-bottom: var(--space-lg);
}

.settings-overlay.visible .settings-box {
  transform: translateY(0) scale(1);
}

.settings-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 1.05rem;
  font-weight: 600;
  color: #e0e0e0;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-lg);
}

.settings-content {
  color: #aaa;
  font-size: 0.92rem;
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
  min-width: 0;
  padding-top: 0;
}

.settings-layout {
  display: grid;
  grid-template-columns: 130px minmax(0, 1fr);
  gap: var(--space-xl);
}

.settings-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.settings-nav-btn {
  background: transparent;
  border: none;
  border-left: 2px solid transparent;
  color: #666;
  cursor: pointer;
  font: inherit;
  font-size: 0.925rem;
  padding: var(--space-sm) var(--space-sm);
  text-align: left;
}

.settings-nav-btn:hover,
.settings-nav-btn.active {
  background: #1a1a1a;
  border-left-color: #e0e0e0;
  color: #e0e0e0;
}

.settings-category {
  display: none;
  flex-direction: column;
  gap: var(--space-md);
}

.settings-category.active {
  display: flex;
}

.settings-option-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  color: #e0e0e0;
  font-size: 0.92rem;
  padding: var(--space-sm) 0;
}

/* Keep the label text and its ? button glued on one line: the label is
   an inline-flex box that never wraps its button below the text. */
.settings-option-row > span:first-child {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  flex-wrap: nowrap;
}

.settings-option-row .help-btn {
  flex: none;
}

/* Same glue for picker labels that carry a ? button (e.g. Vision model). */
.default-model-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: #888;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex-wrap: nowrap;
}

.default-model-label .help-btn {
  flex: none;
}

.help-btn {
  width: 18px;
  height: 18px;
  border: 1px solid #555;
  border-radius: 50%;
  background: transparent;
  color: #999;
  cursor: pointer;
  font: inherit;
  font-size: 0.7rem;
  line-height: 16px;
  padding: 0;
}

.setting-help-example {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin-top: var(--space-sm);
  color: #666;
}

.compact-picker-btn {
  max-width: 180px;
}

.api-key-field {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.api-key-field input {
  flex: 1;
  min-width: 0;
}

.api-key-eye {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border: 1px solid #333;
  border-radius: 6px;
  background: #1a1a1a;
  color: #999;
  cursor: pointer;
}

.api-key-eye:hover {
  color: #e0e0e0;
  border-color: #555;
}

.model-router-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.model-router-chain-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

/* Search depth uses the same picker-btn dropdown as Default personality;
   the old Instant/Fast/Deep segmented buttons and their description line
   were removed. Unlike the overlay dropdowns, the search depth list opens
   in-flow directly under its button: viewport-fixed positioning breaks
   inside the settings panel (the transformed .settings-box becomes the
   containing block, so fixed px coordinates land off-screen and get
   clipped), while an in-flow panel can never misposition or clip. */
.search-complexity-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  max-height: 240px;
  overflow-y: auto;

  background: #0a0a0a;
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  padding: 4px;
  scrollbar-width: thin;
  scrollbar-color: #333 #1a1a1a;
}

.model-router-chain-row {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  min-width: 0;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid #222;
  border-radius: 8px;
  background: #0f0f0f;
  transition:
    border-color 0.15s,
    background 0.15s;
}

.model-router-chain-row:hover {
  border-color: #333;
  background: #151515;
}

.model-router-chain-row.active {
  border-color: #444;
  background: #1a1a1a;
}

.model-router-chain-name {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: #e0e0e0;
  font-size: 0.86rem;
  font-weight: 400;
}

.model-router-chain-actions,
.model-router-target-actions {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  flex-shrink: 0;
}

.model-router-modal-box {
  width: min(560px, calc(100vw - 2rem));
}

.model-router-target-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  margin-top: 0;
}

.model-router-targets {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: 0;
  max-height: 42vh;
  overflow-y: auto;
  overscroll-behavior: contain;
  touch-action: pan-y;
}

.model-router-target-row {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: var(--space-sm);
  align-items: center;
}

.model-router-target-row select {
  min-width: 0;
  width: 100%;
  padding: var(--space-sm) var(--space-sm);
  color: #e0e0e0;
  background: #101010;
  border: 1px solid #333;
  border-radius: 5px;
}

.model-router-empty {
  color: #666;
  font-size: 0.8rem;
}

@media (max-width: 560px) {
  .model-router-target-row {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .model-router-target-row select:first-of-type {
    grid-column: 1 / -1;
  }

  .provider-action-btn {
    min-width: 38px;
    min-height: 38px;
    justify-content: center;
    font-size: 1.05rem;
  }
}

.settings-status {
  font-size: 0.8rem;
  color: #666;
  margin-top: var(--space-xs);
}

.settings-status a {
  color: #e0e0e0;
  text-decoration: underline;
}

.chatgpt-device-code-row {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  vertical-align: middle;
}

.chatgpt-device-code {
  color: #fff;
  user-select: text;
  cursor: text;
  font: inherit;
  letter-spacing: 0.04em;
}

.chatgpt-copy-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xs);
  border: none;
  background: transparent;
  color: #666;
  cursor: pointer;
  transition: color 0.2s var(--ease-standard);
}

.chatgpt-copy-btn:hover {
  color: #e0e0e0;
}

.settings-option-row input {
  -webkit-appearance: none;
  appearance: none;
  width: 44px;
  height: 28px;
  border-radius: 14px;
  background: #1a1a1a;
  border: 1px solid #333;
  cursor: pointer;
  position: relative;
  flex-shrink: 0;
  transition:
    background 0.2s var(--ease-standard),
    border-color 0.2s var(--ease-standard);
  touch-action: manipulation;
}

.settings-option-row input::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #666;
  transition:
    transform 0.2s var(--ease-standard),
    background 0.2s var(--ease-standard);
}

.settings-status.error {
  color: #e07070;
}

.auth-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.provider-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  max-height: 200px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: #333 #1a1a1a;
  overscroll-behavior: contain;
  touch-action: pan-y;
}

.provider-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-sm);
  background: #1a1a1a;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  transition: border-color 0.2s var(--ease-standard);
}

.provider-item:hover {
  border-color: #333;
}

.provider-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.provider-name {
  font-size: 0.85rem;
  color: #e0e0e0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.provider-actions {
  display: flex;
  gap: var(--space-xs);
  flex-shrink: 0;
}

.provider-action-btn {
  background: transparent;
  border: none;
  color: #666;
  cursor: pointer;
  padding: var(--space-xs);
  border-radius: 4px;
  display: flex;
  align-items: center;
  touch-action: manipulation;
}

.provider-action-btn:hover {
  color: #e0e0e0;
}

.provider-delete-btn:hover {
  color: #e07070;
}

.provider-action-btn:disabled {
  opacity: 0.25;
  cursor: default;
}

.provider-action-btn:disabled:hover {
  color: #666;
}

.modal-body input:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
  transition:
    opacity 0.3s var(--ease-emphasized),
    visibility 0s linear 0.4s;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: flex-end;
  justify-content: center;

  padding-bottom: calc(
    var(--sab, env(safe-area-inset-bottom, 0px)) +
    var(--kb-inset, 0px)
  );
}

.modal-overlay.visible {
  opacity: 1;
  pointer-events: all;
  visibility: visible;
  transition:
    opacity 0.3s var(--ease-emphasized),
    visibility 0s;
}

.modal-overlay.hidden {
  display: flex !important;
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
}

.modal-box {
  background: #0a0a0a;
  border: 1px solid var(--border-strong);
  border-radius: 16px;
  width: calc(100% - 32px);
  max-width: 480px;
  max-height: 85vh;
  max-height: 85dvh;
  overflow-y: auto;

  overscroll-behavior: contain;
  scrollbar-width: none;
  transform: translateY(
      calc(100% + var(--sab, env(safe-area-inset-bottom, 0px)))
    )
    scale(0.92);
  transition: transform 0.4s var(--ease-emphasized);
  margin-bottom: var(--space-lg);
}

.modal-overlay.visible .modal-box {
  transform: translateY(0) scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) var(--space-xl);
  border-bottom: var(--divider);
  font-size: 1rem;
  font-weight: 500;
  color: #e0e0e0;
}

.modal-body {
  padding: var(--space-lg) var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.modal-footer {
  display: flex;
  gap: var(--space-sm);
  padding: var(--space-lg) var(--space-xl);
  border-top: var(--divider);
}

.modal-label {
  font-size: 0.75rem;
  color: #666;
}

.modal-body input:not([type="checkbox"]),
.modal-body textarea {
  width: 100%;
  background: #000;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  color: #e0e0e0;
  font-family: inherit;
  font-size: 0.9rem;
  padding: var(--space-sm) var(--space-sm);
  transition: border-color 0.2s var(--ease-standard);
}

.modal-body input:not([type="checkbox"]):focus,
.modal-body textarea:focus {
  border-color: #333;
}

.modal-body input:not([type="checkbox"])::placeholder,
.modal-body textarea::placeholder {
  color: #666;
}

.modal-body textarea {
  resize: vertical;
  min-height: 80px;
  line-height: 1.5;
  font-family: "Open Runde", system-ui, sans-serif;
}

#personalityPrompt {
  min-height: 240px;
}

#systemPromptInput,
#titlePromptInput {
  min-height: 240px;
}

@media (min-width: 769px) {
  #personalityModal .modal-box,
  #systemPromptModal .modal-box,
  #titlePromptModal .modal-box {
    width: calc(100% - 96px);
    max-width: 960px;
    max-height: 90vh;
    max-height: 90dvh;
  }

  #personalityName {
    padding: var(--space-md);
    font-size: 1rem;
  }

  #personalityPrompt,
  #systemPromptInput,
  #titlePromptInput {
    min-height: 520px;
    padding: var(--space-md);
    font-size: 0.95rem;
    line-height: 1.6;
  }
}

.hidden {
  display: none !important;
}

.empty-state {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #555;
  font-size: 1.3rem;
  font-weight: 600;
  text-align: center;
}

.msg-actions {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
}

.msg-actions::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: calc(50% - 1px);
  height: 0;
  border-top: var(--divider);
  z-index: 0;
}

.msg-actions-left {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  background: #000;
  padding: 0 var(--space-sm) 0 0;
}

.msg-actions-right {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  background: #000;
  padding: 0 0 0 var(--space-sm);
}

.msg-action-btn {
  background: transparent;
  border: none;
  color: #555;
  cursor: pointer;
  padding: var(--space-xs);
  border-radius: 6px;
  display: flex;
  align-items: center;
  touch-action: manipulation;
}

.msg-action-btn svg {
  width: 20px;
  height: 20px;
}

.attempt-nav .msg-action-btn svg {
  width: 16px;
  height: 16px;
}

.msg-action-btn:hover {
  color: #e0e0e0;
}

.msg-action-btn:disabled {
  opacity: 0.35;
  cursor: default;
}

.attempt-nav {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.8rem;
  color: #666;
  margin-left: var(--space-xs);
  white-space: nowrap;
}

.dropdown-group-header {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  cursor: pointer;
  font-size: 0.7rem;
  font-weight: 500;
  color: #666;
  padding: var(--space-sm) var(--space-sm) var(--space-xs);
}

.dropdown-group-header::before {
  content: "";
  width: 0;
  height: 0;
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  border-left: 5px solid #666;
  transform: rotate(90deg);
  transition: transform 0.2s var(--ease-standard);
}

.dropdown-group-header.collapsed::before {
  transform: rotate(0deg);
}

.dropdown-group-items {
  display: grid;
  grid-template-rows: 1fr;
  transition: grid-template-rows 0.25s var(--ease-standard);
}

.dropdown-group-items.collapsed {
  grid-template-rows: 0fr;
}

.dropdown-group-items > .dropdown-group-items-inner {
  overflow: hidden;
  min-height: 0;
}

.default-model-wrap {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
}

.default-model-btn {
  width: 100%;
  justify-content: space-between;
}

.default-model-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  max-height: 240px;
  overflow-y: auto;

  background: #0a0a0a;
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  padding: 4px;
  scrollbar-width: thin;
  scrollbar-color: #333 #1a1a1a;
}

.default-model-list.dropdown {
  min-width: 260px;
}

.info-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  padding: var(--space-sm) 0;
  border-bottom: var(--divider);
  font-size: 0.95rem;
}

.info-row:last-child {
  border-bottom: none;
}

.info-label {
  color: #666;
  flex-shrink: 0;
}

.info-value {
  color: #e0e0e0;
  text-align: right;
  word-break: break-all;
}

.help-modal-body {
  color: #e0e0e0;
  font-size: 0.9rem;
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

@keyframes sheetUp {
  from {
    transform: translateY(100%);
  }
  to {
    transform: translateY(0);
  }
}

@keyframes slideUpFade {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes popIn {
  from {
    opacity: 0;
    transform: scale(0.96);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.dropdown-item {
  animation: fadeIn 0.15s var(--ease-standard);
}

.conversation-item {
  animation: slideUpFade 0.2s var(--ease-standard);
}

.conversation-list.rendered .conversation-item {
  animation: none;
}

.provider-item {
  animation: slideUpFade 0.2s var(--ease-standard);
}

.settings-category.active {
  animation: slideUpFade 0.25s var(--ease-standard);
}

.bottom-bar-controls {
  animation: fadeIn 0.3s var(--ease-standard);
}

.dropdown {
  animation: popIn 0.2s var(--ease-standard);
}

.settings-nav-btn {
  transition:
    background 0.2s var(--ease-standard),
    color 0.2s var(--ease-standard),
    border-color 0.2s var(--ease-standard),
    transform 0.15s var(--ease-standard);
}
.settings-nav-btn:active {
  transform: scale(0.97);
}

.icon-btn {
  transition:
    color 0.2s var(--ease-standard),
    background 0.2s var(--ease-standard),
    transform 0.15s var(--ease-standard);
}
.icon-btn:active {
  transform: scale(0.88);
}

.sidebar-open-btn {
  transition:
    color 0.2s var(--ease-standard),
    background 0.2s var(--ease-standard),
    transform 0.15s var(--ease-standard);
}
.sidebar-open-btn:active {
  transform: scale(0.9);
}

.picker-btn {
  transition:
    border-color 0.2s var(--ease-standard),
    background 0.2s var(--ease-standard),
    transform 0.15s var(--ease-standard);
}
.picker-btn:active {
  transform: scale(0.97);
}

.help-btn {
  transition:
    color 0.2s var(--ease-standard),
    border-color 0.2s var(--ease-standard),
    background 0.2s var(--ease-standard),
    transform 0.15s var(--ease-standard);
}
.help-btn:active {
  transform: scale(0.9);
}

.api-key-eye {
  transition:
    color 0.2s var(--ease-standard),
    border-color 0.2s var(--ease-standard),
    transform 0.15s var(--ease-standard);
}
.api-key-eye:active {
  transform: scale(0.9);
}

.msg-action-btn {
  transition:
    color 0.2s var(--ease-standard),
    background 0.2s var(--ease-standard),
    transform 0.15s var(--ease-standard);
}
.msg-action-btn:active {
  transform: scale(0.85);
}

.conversation-action-btn {
  transition:
    color 0.2s var(--ease-standard),
    background 0.2s var(--ease-standard),
    transform 0.15s var(--ease-standard);
}
.conversation-action-btn:active {
  transform: scale(0.85);
}

.provider-action-btn {
  transition:
    color 0.2s var(--ease-standard),
    background 0.2s var(--ease-standard),
    transform 0.15s var(--ease-standard);
}
.provider-action-btn:active {
  transform: scale(0.85);
}

.dropdown-item .rename-btn {
  transition:
    color 0.2s var(--ease-standard),
    transform 0.15s var(--ease-standard);
}
.dropdown-item .rename-btn:active {
  transform: scale(0.85);
}

.panel-close-btn:active {
  transform: scale(0.95);
}

.dropdown-item:active {
  background: #1a1a1a;
}

.dropdown-group-header {
  transition: color 0.2s var(--ease-standard);
}
.dropdown-group-header:hover {
  color: #999;
}

@media (max-width: 768px) {
  .toast-stack {
    bottom: calc(
      112px +
      var(--sab, env(safe-area-inset-bottom, 0px)) +
      var(--kb-inset, 0px)
    );
  }

  /* Typing: the bar docks on the keyboard (safe-area collapsed above), so
     the toast must drop the safe term too or it floats 34px too high. */
  .kb-open .toast-stack {
    bottom: calc(112px + var(--kb-inset, 0px));
  }
}

html.animations-disabled *,
html.animations-disabled *::before,
html.animations-disabled *::after {
  animation-duration: 0.001ms !important;
  animation-iteration-count: 1 !important;
  transition-duration: 0.001ms !important;
}
html.animations-disabled .toast {
  transition-property: opacity !important;
  transition-duration: 150ms !important;
}

@media (hover: hover) and (pointer: fine) {
  .sidebar-hover-zone {
    display: block;
  }

  .mobile-only {
    display: none !important;
  }
}

@media (max-width: 768px) {
  body {
    user-select: none;
  }

  .sidebar {
    width: min(86vw, 360px);
    border-radius: 0 16px 16px 0;
  }

  .sidebar.open {
    box-shadow: 24px 0 48px rgba(0, 0, 0, 0.5);
  }

  .sidebar-hover-zone {
    display: none !important;
  }

  .mobile-only {
    display: flex;
  }

  .picker-btn {
    max-width: 46vw;
  }

  #reasoningPicker {
    flex: 0 0 auto;
    max-width: none;
  }

  #modelPicker,
  #personalityPicker {
    flex: 0 1 auto;
    min-width: 0;
    max-width: 30vw;
  }

  .sidebar-open-btn {
    left: auto;
    right: var(--space-md);
  }

  .picker-label {
    max-width: none;
  }

  .dropdown {
    left: var(--space-sm);
    right: var(--space-sm);
    width: auto;
    max-width: none;
  }

  .messages {
    padding-top: 60px;
    scroll-padding-top: 60px;
  }

  .messages-inner {
    padding-left: max(var(--space-md), env(safe-area-inset-left, 0px));
    padding-right: max(var(--space-md), env(safe-area-inset-right, 0px));
  }

  .attachment-tray {
    padding-left: var(--space-md);
    padding-right: var(--space-md);
  }

  .reasoning-body {
    font-size: 0.9rem;
  }

  .message.user .message-bubble {
    font-size: 16px;
  }

  .message.assistant .message-bubble {
    font-size: 17px;
    line-height: 1.62;
  }

  .composer {
    padding: var(--space-xs) var(--space-md) var(--space-sm);
  }

  .bottom-bar-controls {
    width: 100%;
    max-width: none;
    padding: var(--space-xs) var(--space-md) 0;
    gap: var(--space-xs);
  }

  .settings-box {
    width: 95%;
    padding: var(--space-xl);
  }

  .settings-nav-btn {
    border-left: none;
    border-bottom: 2px solid transparent;
    white-space: nowrap;
  }

  .settings-nav-btn:hover,
  .settings-nav-btn.active {
    border-left-color: transparent;
    border-bottom-color: #e0e0e0;
  }

  .modal-box {
    width: 95%;
  }

  .icon-btn {
    min-width: 44px;
    min-height: 44px;
  }

  .conversation-item {
    padding: var(--space-sm) var(--space-lg);
  }

  .dropdown-item {
    padding: var(--space-sm) var(--space-md);
  }

  .msg-action-btn {
    padding: var(--space-sm);
  }

  .settings-btn {
    padding: var(--space-md) var(--space-lg);
    font-size: 1rem;
  }

  .api-key-eye {
    padding: var(--space-sm);
  }

  .help-btn {
    width: 28px;
    height: 28px;
    font-size: 0.85rem;
    line-height: 26px;
  }

  .dropdown-item {
    font-size: 1rem;
  }

  .dropdown-item .model-name {
    font-size: 1rem;
  }

  .dropdown.dropdown-wide {
    width: auto;
  }

  .settings-layout {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .settings-nav {
    flex-direction: row;
    overflow-x: auto;
    gap: var(--space-xs);
    scrollbar-width: none;
  }

  .settings-nav::-webkit-scrollbar {
    display: none;
  }

  .settings-nav-btn {
    flex: 0 0 auto;
    text-align: center;
    white-space: nowrap;
    padding: var(--space-sm) var(--space-md);
    border-left: none;
    border-radius: 8px;
    font-size: 0.9rem;
  }

  .settings-box,
  .modal-box {
    max-height: min(85dvh, calc(var(--app-height, 100dvh) - 24px));
  }

  .settings-nav-btn.active {
    border-left: none;
    background: #1a1a1a;
  }

  .settings-nav-btn:hover {
    background: transparent;
  }

  .settings-nav-btn.active:hover {
    background: #1a1a1a;
  }

  .dropdown {
    left: 0;
    right: 0;

    bottom: var(--kb-inset, 0px);
    top: auto;
    width: auto;
    max-width: none;

    max-height: min(72dvh, calc(var(--app-height, 100dvh) - 24px));
    border-left: none;
    border-right: none;
    border-bottom: none;
    border-radius: 16px 16px 0 0;
    box-shadow: 0 -12px 40px rgba(0, 0, 0, 0.6);
    overscroll-behavior: contain;
    padding-bottom: var(--sab, env(safe-area-inset-bottom, 0px));
    animation: sheetUp 0.25s var(--ease-emphasized);
  }

  .conversation-action-btn {
    padding: var(--space-sm);
  }
  .conversation-action-btn svg {
    width: 18px;
    height: 18px;
  }

  .provider-action-btn {
    padding: var(--space-sm);
  }
  .provider-action-btn svg {
    width: 18px;
    height: 18px;
  }

  .rename-btn {
    padding: var(--space-sm);
  }
  .rename-btn svg {
    width: 16px;
    height: 16px;
  }

  .sidebar-settings-btn {
    padding: var(--space-sm);
  }
  .sidebar-settings-btn svg {
    width: 22px;
    height: 22px;
  }

  /* iOS-native bottom chrome: one compact input stack sitting just above
     the home indicator, matching Messages-style metrics. Desktop rules
     above are untouched. */

  /* Overlay keyboard (iOS) occupies the home-indicator zone itself, so the
     reserved safe-area becomes a 34px dead gap above the keyboard. script.js
     sets .kb-open exactly in this overlay case (resizes-content browsers
     clear it), so collapse the inset and dock the composer on the keyboard. */
  .kb-open .bottom-bar {
    padding-bottom: 0;
  }

  /* Same collapse driven by focus itself: resizes-content browsers clear
     .kb-open (layout already ends at the keyboard), and JS geometry can lag
     mid-animation, but focus is always truthful while typing. Blur restores
     the safe padding deterministically, so close always equals load. */
  .bottom-bar:focus-within {
    padding-bottom: 0;
  }

  /* HIG 44pt action buttons: 48px visual buttons inflate the composer row
     with no touch benefit (44px is already the HIG minimum). */
  .send-btn,
  .attach-btn {
    height: 44px;
    width: 44px;
    min-height: 44px;
    min-width: 44px;
    max-height: 44px;
    max-width: 44px;
    flex: 0 0 44px;
  }

  /* Bottom sheets: safe-area exactly once. It lives in the overlay's
     resting padding (and the sheet's own inner padding), so sheet margins
     carry spacing only — never another safe term. */
  .settings-box {
    margin-bottom: var(--space-sm);
    padding-bottom: calc(
      var(--space-lg) +
      var(--sab, env(safe-area-inset-bottom, 0px))
    );
  }

  .modal-box {
    margin-bottom: var(--space-sm);
  }
}

@media (hover: none) and (pointer: coarse) {
  .icon-btn:hover {
    background: transparent;
  }

  .picker-btn:hover {
    border-color: var(--border-strong);
    background: transparent;
  }

  .picker-btn {
    padding: var(--space-sm) var(--space-sm);

    min-height: 44px;
  }

  .conversation-item {
    min-height: 48px;
  }

  .conversation-actions {
    opacity: 1;
  }

  .conversation-title,
  .conversation-item.pinned .conversation-title {
    margin-right: 5rem;
  }

  .conversation-actions .conversation-action-btn:not(.pin-btn) {
    max-width: 1.75rem;
    padding-left: var(--space-sm);
    padding-right: var(--space-sm);
    opacity: 1;
    pointer-events: auto;
  }

  .conversation-actions .conversation-action-btn + .conversation-action-btn {
    margin-left: 0.25rem;
  }

  .composer textarea,
  .dropdown-search input,
  .modal-body input,
  .modal-body textarea,
  .model-router-target-row select {
    font-size: 16px;
  }

  .conversation-item:active,
  .dropdown-item:active {
    background: #222;
  }

  .settings-btn:active,
  .picker-btn:active {
    background: var(--fill-secondary);
  }

  .fab-btn:active,
  .send-btn:active,
  .sidebar-open-btn:active {
    transform: scale(0.94);
  }

  .dropdown-item {
    min-height: 44px;
  }

  .dropdown-list,
  .settings-box,
  .modal-box {
    -webkit-overflow-scrolling: touch;
  }
}

.auth-confirm-overlay {
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.auth-confirm-overlay .auth-modal-box {
  background: var(--system-raised);
  border: 1px solid var(--border-strong);
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
}

.auth-confirm-overlay .auth-modal-title,
.auth-confirm-overlay .auth-confirm-title {
  font-size: 1rem;
  font-weight: 500;
  color: var(--label-primary);
  letter-spacing: -0.01em;
}

.auth-confirm-overlay .auth-modal-body,
.auth-confirm-overlay .auth-confirm-body {
  color: var(--label-secondary);
  line-height: 1.45;
}

.auth-confirm-overlay .auth-input {
  background: #000;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  color: var(--label-primary);
  font-size: 0.9rem;
  transition: border-color 0.2s var(--ease-standard);
}

.auth-confirm-overlay .auth-input:focus {
  border-color: #555;
}

.auth-confirm-overlay .auth-input::placeholder {
  color: var(--label-tertiary);
}

.auth-confirm-overlay .auth-message.error {
  color: #e07070;
}

.auth-confirm-overlay .auth-message.success {
  color: #7bc67b;
}

.auth-confirm-overlay .auth-confirm-btn {
  background: var(--fill-primary);
  border: 1px solid #333;
  border-radius: 8px;
  color: var(--label-primary);
  font-family: inherit;
  font-size: 0.85rem;
  padding: var(--space-sm) var(--space-lg);
  transition:
    background 0.2s var(--ease-standard),
    border-color 0.2s var(--ease-standard),
    transform 0.15s var(--ease-standard);
  touch-action: manipulation;
}

.auth-confirm-overlay .auth-confirm-btn:hover {
  background: var(--fill-secondary);
  border-color: #555;
  color: var(--label-primary);
}

.auth-confirm-overlay .auth-confirm-btn:active {
  transform: scale(0.97);
}

.auth-confirm-overlay .auth-confirm-btn.primary {
  background: var(--label-primary);
  border-color: var(--label-primary);
  color: #000;
  font-weight: 500;
}

.auth-confirm-overlay .auth-confirm-btn.primary:hover {
  background: #fff;
  border-color: #fff;
  color: #000;
}

.auth-confirm-overlay .auth-confirm-btn:focus-visible,
.auth-confirm-overlay .auth-input:focus-visible {
  outline: 2px solid var(--label-secondary);
  outline-offset: 2px;
}

@media (hover: none) and (pointer: coarse) {
  .fab-btn:hover,
  .fab-primary:hover,
  .fab-btn.fab-temp:hover {
    background: #1a1a1a;
    transform: none;
  }

  .fab-btn.fab-temp:hover {
    background: transparent;
  }

  .fab-btn:active {
    transform: rotate(90deg) scale(0.9);
  }

  .send-btn:hover {
    background: #1a1a1a;
    transform: none;
  }

  .conversation-item:hover {
    background: transparent;
  }

  .conversation-item.active:hover {
    background: #1a1a1a;
  }

  .settings-nav-btn:hover {
    background: transparent;
    border-left-color: transparent;
    color: #666;
  }

  .settings-nav-btn.active:hover {
    background: #1a1a1a;
    border-left-color: #e0e0e0;
    color: #e0e0e0;
  }

  .dropdown-item:hover {
    background: transparent;
  }

  .provider-action-btn:hover {
    color: #666;
  }

  .reasoning-header:hover {
    color: var(--label-secondary);
  }

  .message-bubble a:hover {
    color: #ffffff;
  }
}

.reasoning-event {
  -webkit-user-select: text;
  user-select: text;
  align-items: center;
  color: var(--label-secondary);
  display: flex;
  font-size: 0.8rem;
  gap: 6px;
  min-width: 0;
}
.reasoning-event span:last-child {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.reasoning-event.attempt-line span:last-child {
  overflow-wrap: anywhere;
  white-space: normal;
}
.reasoning-event a {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: var(--label-tertiary);
  text-underline-offset: 2px;
}
.reasoning-event a:hover {
  color: var(--label-primary);
}
.reasoning-event a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.reasoning-event-icon {
  -webkit-user-select: text;
  user-select: text;
  color: var(--label-tertiary);
  display: flex;
  flex-shrink: 0;
}
.reasoning-sources {
  color: var(--label-secondary);
  font-size: 0.8rem;
  margin-top: 6px;
}
.reasoning-sources.hidden {
  display: none;
}
.reasoning-event.failed {
  color: #c0392b;
}
.reasoning-event.failed .reasoning-event-icon {
  color: #c0392b;
}

@media (display-mode: standalone) {
  .bottom-bar {
    padding-top: 4px;
  }
}