/* Umrani AI — main stylesheet */
/* BEGIN GENERATED VARIABLES */
/* Editorial UI tokens. Brand-only colors remain unchanged in every theme. */
:root {
  color-scheme: light;
  --bg-page: #FCFCFB;
  --bg-main: #FCFCFB;
  --bg-sidebar: #F9F9F7;
  --bg-surface: #FFFFFF;
  --bg-card: #FFFFFF;
  --bg-input: #FFFFFF;
  --bg-hover: rgba(11, 11, 11, 0.045);
  --bg-code: #F9F9F7;
  --bg-code-head: #F1F1EE;
  --bg-bubble-ai: var(--bg-card);
  --bg-bubble-user: #0B0B0B;
  --bg-composer: var(--bg-input);
  --bg-menu: var(--bg-surface);
  --text-primary: #0B0B0B;
  --text-secondary: #52514E;
  --text-muted: #898781;
  --text-user-bubble: #FFFFFF;
  --text-code: #0B0B0B;
  --border: rgba(11, 11, 11, 0.10);
  --border-strong: rgba(11, 11, 11, 0.20);
  --accent: #002050;
  --accent-soft: rgba(0, 32, 80, 0.12);
  --accent-2: #002050;
  --danger: #B53528;
  --shadow-sm: 0 1px 3px rgba(11, 11, 11, 0.06);
  --shadow-md: 0 6px 20px rgba(11, 11, 11, 0.08);
  --shadow-lg: 0 16px 45px rgba(11, 11, 11, 0.12);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 28px;
  --sidebar-w: 272px;
  --content-max: 1150px;
  --font-main: anthropic-sans, system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-display: anthropic-serif, Georgia, "Times New Roman", serif;
  --font-mono: "JetBrains Mono", "Cascadia Code", Consolas, "SF Mono", Menlo, monospace;
  --cta-bg: #0B0B0B;
  --cta-text: #FCFCFB;
  /* Brand tokens sampled from the Umrani AI logo: navy and gold. */
  --brand-purple: #002050;
  --brand-teal: #C89020;
  --brand-soft: rgba(0, 32, 80, 0.10);
  --brand-shadow-sm: 0 1px 3px rgba(60, 50, 40, 0.08);
  --brand-shadow-md: 0 4px 16px rgba(60, 50, 40, 0.10);
}
/* Light is the default, regardless of the OS preference. Dark remains opt-in. */
[data-mode="dark"],
[data-theme="dark"],
.dark {
  color-scheme: dark;
  --bg-page: #151515;
  --bg-main: #151515;
  --bg-sidebar: #0B0B0B;
  --bg-surface: #20201F;
  --bg-card: #20201F;
  --bg-input: #20201F;
  --bg-hover: rgba(255, 255, 255, 0.07);
  --bg-code: #20201F;
  --bg-code-head: #292927;
  --bg-bubble-ai: var(--bg-card);
  --bg-bubble-user: #20201F;
  --bg-composer: var(--bg-input);
  --bg-menu: var(--bg-surface);
  --text-primary: #F0EFEC;
  --text-secondary: #C3C2B7;
  --text-muted: #898781;
  --text-user-bubble: #F0EFEC;
  --text-code: #F0EFEC;
  --border: rgba(255, 255, 255, 0.10);
  --border-strong: rgba(255, 255, 255, 0.20);
  --accent: #C89020;
  --accent-soft: rgba(200, 144, 32, 0.18);
  --accent-2: #C89020;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.20);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.28);
  --shadow-lg: 0 16px 45px rgba(0, 0, 0, 0.40);
  --cta-bg: #F0EFEC;
  --cta-text: #151515;
  --danger: #F49A89;
}

/* END GENERATED VARIABLES */

/* ---------- 2. Reset / base ---------- */
* { box-sizing: border-box; margin: 0; padding: 0; }

/* CRITICAL: author display rules (flex etc.) must never defeat the
   hidden attribute — otherwise lock overlay / menus show on load. */
[hidden] { display: none !important; }

html, body { height: 100%; }

body {
  font-family: var(--font-main);
  background: var(--bg-page);
  color: var(--text-primary);
  font-weight: 400;
  letter-spacing: -0.01em;
  display: flex;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

button { font-family: inherit; cursor: pointer; }
input, textarea { font-family: inherit; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: 8px;
  transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease;
  flex-shrink: 0;
}
.icon-btn:hover { background: var(--bg-hover); color: var(--text-primary); transform: translateY(-1px); }
.icon-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.icon-btn:disabled:hover { transform: none; }

/* One modern, lightweight icon language across static and generated UI. */
.icon-btn svg,
.new-chat-btn svg,
.search-icon,
.developer-icon svg,
.avatar svg,
.ci-del svg {
  stroke-width: 1.8;
}
/* ---------- 3. Sidebar ---------- */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  transform: translateX(-105%);
  transition: transform 0.25s ease;
  box-shadow: var(--shadow-lg);
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  height: 100vh;
  height: 100dvh;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 14px 12px;
  gap: 10px;
  z-index: 40;
}
.sidebar.open { transform: translateX(0); }

.sidebar-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 2px 4px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
  color: var(--text-primary);
}
.brand-logo {
  display: block;
  height: 36px;
  width: auto;
  max-width: 100%;
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 4px 8px;
  box-shadow: var(--brand-shadow-sm);
}
.brand-name { font-size: 1.12rem; font-weight: 700; letter-spacing: -0.025em; }
.sidebar-close { display: inline-flex; }

.new-chat-btn {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  background: var(--bg-sidebar);
  color: var(--text-primary);
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: 14px;
  transition: background 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}
.new-chat-btn:hover {
  background: var(--bg-hover);
  border-color: var(--accent);
  box-shadow: var(--shadow-sm);
}

.search-wrap { position: relative; display: flex; align-items: center; }
.search-icon {
  position: absolute;
  left: 11px;
  color: var(--text-muted);
  pointer-events: none;
}
#searchChats {
  width: 100%;
  padding: 9px 12px 9px 34px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--bg-input);
  color: var(--text-primary);
  font-size: 0.88rem;
}
#searchChats::placeholder { color: var(--text-muted); }
#searchChats:focus { border-color: var(--accent); outline: none; }

.chat-list {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 4px 2px;
  scrollbar-width: thin;
}
.chat-list::-webkit-scrollbar { width: 6px; }
.chat-list::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 3px; }

.chat-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 10px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: 8px;
  text-align: left;
  font-size: 0.88rem;
  width: 100%;
  cursor: pointer;
  user-select: none;
  transition: background 0.15s ease, color 0.15s ease;
}
.chat-item:hover { background: var(--bg-hover); }
.chat-item.active {
  background: var(--accent-soft);
  color: var(--text-primary);
  font-weight: 600;
}
.chat-item .ci-title {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.chat-item .ci-del {
  opacity: 0;
  border: none;
  background: transparent;
  color: var(--text-muted);
  width: 26px; height: 26px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 6px;
  flex-shrink: 0;
  transition: opacity 0.15s ease, color 0.15s ease, background 0.15s ease;
}
.chat-item:hover .ci-del, .chat-item:focus-within .ci-del { opacity: 1; }
.ci-del:hover { color: var(--danger); background: rgba(220, 38, 38, 0.08); }
.chat-list-empty {
  color: var(--text-muted);
  font-size: 0.82rem;
  padding: 10px;
  text-align: center;
}
/* ---------- 4. About Developer (fixed, top-right corner) ---------- */
/* One compact pill above the chat UI; below lock overlay (z 100+). */
.about-developer-top {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 45;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 14px 8px 12px;
  background: var(--bg-sidebar);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  transition: background 0.18s ease, color 0.18s ease,
              border-color 0.18s ease, box-shadow 0.18s ease;
}
.about-developer-top .developer-icon { display: inline-flex; }
.about-developer-top:hover,
.about-developer-top:focus-visible {
  background: var(--bg-hover);
  color: var(--accent);
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
}
.about-developer-top:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Mobile: icon-only pill so it never crowds the topbar. */
@media (max-width: 640px) {
  .about-developer-top { padding: 9px; top: 12px; right: 12px; }
  .about-developer-top .developer-label { display: none; }
}

/* ---------- 5. Overlay (mobile drawer) ---------- */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(40, 35, 30, 0.45);
  z-index: 35;
  opacity: 0;
  transition: opacity 0.2s ease;
}
.overlay.show { opacity: 1; }

/* ---------- 6. Main area ---------- */
.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
  min-width: 0;
  background: var(--bg-main);
}

.topbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-main);
  min-height: 56px;
}
.menu-btn { display: inline-flex; }
.topbar-title { font-weight: 700; font-size: 1rem; letter-spacing: -0.025em; }
.stream-status {
  max-width: 780px;
  margin: 0 auto 6px;
  display: flex;
  align-items: center;
  gap: 7px;
  padding-left: 8px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}
.stream-status .dot {
  width: 7px; height: 7px;
  background: var(--accent-2);
  border-radius: 50%;
  animation: pulse 1.1s ease-in-out infinite;
}

/* ---------- Adsterra inline ad shell ---------- */
.adsterra-ad-shell {
  position: fixed;
  right: 14px;
  bottom: 86px;
  z-index: 32;
  display: inline-flex;
  align-items: flex-start;
  gap: 6px;
  max-width: min(96vw, 420px);
}
.adsterra-ad-shell.inline-ad-mode {
  /* Inline inside the message feed instead of covering the full screen. */
  position: relative;
  right: auto;
  bottom: auto;
  z-index: 1;
  align-self: center;
  width: min(100%, 620px);
  min-height: 88px;
  margin: 4px auto;
  padding: 28px 18px 16px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--bg-sidebar);
  box-shadow: var(--shadow-sm);
}
.adsterra-ad-shell.inline-ad-mode .adsterra-ad-label {
  top: 10px;
  left: 18px;
  right: auto;
}
.adsterra-ad-shell.inline-ad-mode .adsterra-close-btn {
  top: 8px;
  right: 8px;
}
.native-ad-container {
  width: 100%;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.native-ad-container > * {
  max-width: 100%;
}
.adsterra-ad-label {
  position: absolute;
  top: -17px;
  right: 30px;
  color: var(--text-muted);
  font-size: 0.68rem;
  pointer-events: none;
}
.adsterra-close-btn {
  position: absolute;
  top: -25px;
  right: 0;
  width: 24px;
  height: 24px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--bg-sidebar);
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1;
  box-shadow: var(--shadow-sm);
  z-index: 2;
}
.adsterra-close-btn:hover {
  background: var(--bg-hover);
  color: var(--danger);
}
.adsterra-close-btn[hidden] { display: none; }
.adsterra-ad-highlight {
  outline: 3px solid var(--accent);
  outline-offset: 5px;
}
@keyframes pulse {
  0%, 100% { opacity: 0.35; transform: scale(0.85); }
  50% { opacity: 1; transform: scale(1.15); }
}

/* ---------- 7. Chat area / messages ---------- */
.chat-area {
  flex: 1;
  overflow-y: auto;
  scroll-behavior: smooth;
  position: relative;
}
.chat-area::-webkit-scrollbar { width: 8px; }
.chat-area::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 4px; }

.empty-state {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px;
  gap: 8px;
  pointer-events: none;
}
.empty-logo {
  width: 64px; height: 64px;
  display: flex; align-items: center; justify-content: center;
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: 20px;
  margin-bottom: 6px;
  overflow: hidden;
}
.empty-logo img { display: block; width: 54px; height: 54px; object-fit: contain; }
.empty-state h1 { font-size: 1.7rem; font-weight: 800; letter-spacing: -0.04em; }
.empty-sub { font-size: 1rem; color: var(--text-secondary); }
.empty-lang { font-size: 0.86rem; color: var(--text-muted); }
.messages {
  max-width: 780px;
  margin: 0 auto;
  padding: 22px 18px 10px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.msg {
  display: flex;
  gap: 10px;
  max-width: 100%;
  animation: msgIn 0.25s ease;
}
@keyframes msgIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.msg.user { justify-content: flex-end; }

.avatar {
  width: 32px; height: 32px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}
.msg.ai .avatar {
  background: linear-gradient(135deg, var(--brand-purple), var(--brand-teal));
  color: #fff;
}

.bubble {
  padding: 11px 15px;
  border-radius: 18px;
  font-size: 0.94rem;
  line-height: 1.62;
  letter-spacing: -0.006em;
  word-wrap: break-word;
  overflow-wrap: anywhere;
  max-width: 100%;
  white-space: pre-wrap;
}
.msg.user .bubble {
  background: var(--bg-bubble-user);
  color: var(--text-user-bubble);
  border-bottom-right-radius: 6px;
  box-shadow: var(--shadow-sm);
  max-width: 82%;
}
.message-attachment {
  margin-top: 8px;
  padding: 7px 9px;
  border: 1px solid currentColor;
  border-radius: 9px;
  font-size: 0.78rem;
  opacity: 0.82;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.msg.ai .bubble {
  background: var(--bg-bubble-ai);
  border: 1px solid var(--border);
  border-bottom-left-radius: 6px;
  box-shadow: var(--shadow-sm);
  max-width: 92%;
}
/* RTL support for Urdu responses */
.msg.ai .bubble[dir="rtl"] { text-align: right; border-bottom-left-radius: 18px; border-bottom-right-radius: 6px; }

/* Markdown-like rendered content inside AI bubbles */
.msg .md { white-space: normal; }
.md p { margin: 0 0 8px; }
.md p:last-child { margin-bottom: 0; }
.md h3, .md h2 { margin: 12px 0 6px; font-size: 1.02rem; font-weight: 700; }
.md ul, .md ol { margin: 4px 0 10px 20px; }
.md li { margin: 3px 0; }
.md blockquote {
  border-left: 3px solid var(--accent-2);
  padding: 2px 0 2px 10px;
  color: var(--text-secondary);
  margin: 8px 0;
}
.md code.inline {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--accent-soft);
  padding: 1px 5px;
  border-radius: 5px;
  direction: ltr;
  unicode-bidi: embed;
}
.md a { color: var(--accent); text-decoration: underline; }
.md strong { font-weight: 700; }
.md hr { border: 0; border-top: 1px solid var(--border-strong); margin: 14px 0; }
.md .table-wrap { overflow-x: auto; margin: 10px 0; }
.md table { border-collapse: collapse; width: 100%; font-size: 0.92em; line-height: 1.45; }
.md th, .md td { border: 1px solid var(--border); padding: 6px 10px; text-align: left; vertical-align: top; }
.md thead th { background: var(--bg-code-head); font-weight: 700; }
.md .katex-display { overflow-x: auto; overflow-y: hidden; padding: 6px 0; }
.md .katex { font-size: 1.02em; }

/* ---------- 8. Code blocks ---------- */
.code-block {
  margin: 10px 0;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-code);
  direction: ltr;
}
.code-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-code-head);
  color: var(--text-code);
  padding: 7px 12px;
  font-size: 0.76rem;
  font-family: var(--font-mono);
}
.code-copy {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  border: none;
  background: transparent;
  color: var(--text-code);
  font-size: 0.74rem;
  padding: 4px 8px;
  border-radius: 6px;
  opacity: 0.85;
  transition: background 0.15s ease, opacity 0.15s ease;
}
.code-copy:hover { background: var(--bg-hover); opacity: 1; }
.code-actions {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  flex-shrink: 0;
}
.code-body {
  padding: 12px 14px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.55;
  color: var(--text-code);
  white-space: pre;
  tab-size: 2;
  max-height: 420px;
  overflow-y: auto;
}
.code-body.expanded { max-height: none; }
.code-more {
  width: 100%;
  border: none;
  border-top: 1px solid var(--border);
  background: var(--bg-code-head);
  color: var(--text-code);
  font-size: 0.76rem;
  padding: 7px;
  opacity: 0.85;
}
.code-more:hover { opacity: 1; }

/* ---------- 8b. Mermaid diagram blocks ---------- */
.diagram-block {
  margin: 10px 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-bubble-ai);
  padding: 12px;
  direction: ltr;
  overflow-x: auto;
}
.diagram-body {
  display: flex;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.82rem;
}
.diagram-body svg {
  max-width: 100%;
  height: auto;
}
.diagram-error {
  color: var(--danger);
}

/* ---------- 9. Typing indicator ---------- */
.typing {
  display: inline-flex;
  gap: 5px;
  padding: 14px 16px;
  background: var(--bg-bubble-ai);
  border: 1px solid var(--border);
  border-radius: 18px;
  border-bottom-left-radius: 6px;
  box-shadow: var(--shadow-sm);
}
.typing span {
  width: 7px; height: 7px;
  background: var(--text-muted);
  border-radius: 50%;
  animation: bounce 1.2s infinite ease-in-out;
}
.typing span:nth-child(2) { animation-delay: 0.15s; }
.typing span:nth-child(3) { animation-delay: 0.3s; }
@keyframes bounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-5px); opacity: 1; }
}
/* ---------- 10. Composer ---------- */
.composer-zone {
  padding: 8px 16px calc(12px + env(safe-area-inset-bottom));
  background: var(--bg-main);
  position: relative;
}

.composer {
  max-width: 780px;
  margin: 0 auto;
  display: flex;
  align-items: flex-end;
  gap: 6px;
  background: var(--bg-composer);
  border: 1px solid var(--border);
  border-radius: 26px;
  padding: 8px 8px;
  box-shadow: var(--shadow-md);
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}
.composer:focus-within { border-color: var(--accent); }

.attachment-bar {
  max-width: 780px;
  margin: 0 auto 7px;
  padding: 8px 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-sidebar);
  color: var(--text-secondary);
  font-size: 0.8rem;
  box-shadow: var(--shadow-sm);
}
.attachment-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.attachment-remove {
  width: 26px;
  height: 26px;
  flex: 0 0 auto;
  border: none;
  border-radius: 50%;
  background: var(--bg-hover);
  color: var(--text-secondary);
  font-size: 1rem;
}
.attachment-remove:hover { color: var(--danger); }

#messageInput {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--text-primary);
  font-size: 0.95rem;
  line-height: 1.5;
  padding: 8px 4px;
  resize: none;
  max-height: 180px;
  overflow-y: auto;
  min-height: 24px;
}
#messageInput:focus { outline: none; }
#messageInput::placeholder { color: var(--text-muted); }
#messageInput:disabled { opacity: 0.6; }

.composer-mic {
  width: 38px; height: 38px;
  border-radius: 50%;
}

.send-btn {
  width: 38px; height: 38px;
  border: none;
  border-radius: 50%;
  background: var(--cta-bg);
  color: var(--cta-text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.18s ease, transform 0.15s ease, opacity 0.18s ease;
}
.send-btn:hover:not(:disabled) { background: var(--cta-bg); transform: translateY(-1px); }
.send-btn:disabled { opacity: 0.35; cursor: not-allowed; }

.stop-btn {
  width: 38px;
  height: 38px;
  border: none;
  border-radius: 50%;
  background: var(--cta-bg);
  color: var(--cta-text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.18s ease, transform 0.15s ease;
}
.stop-btn:hover { background: var(--cta-bg); transform: translateY(-1px); }

.composer-mic.listening {
  color: var(--cta-text);
  background: var(--cta-bg);
  animation: pulse 1s ease-in-out infinite;
}

.composer-hint {
  text-align: center;
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 7px;
}

.composer-meta {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 14px;
}
.composer-model {
  width: fit-content;
  padding: 4px 14px;
  text-align: center;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
}
.deep-think-toggle {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 0.72rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.deep-think-toggle:hover { border-color: var(--accent); color: var(--accent); }
.deep-think-toggle.on {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: var(--border-strong);
}

/* ---------- 11. Model loading screen ---------- */
.model-loading {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-main);
}
.model-loading[hidden] { display: none !important; }
.model-loading-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
}
.model-loading-logo {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--brand-shadow-md);
  overflow: hidden;
}
.model-loading-logo img { display: block; width: 50px; height: 50px; object-fit: contain; }
.model-loading-title {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text-primary);
}
.model-loading-bar {
  width: 180px;
  height: 6px;
  border-radius: 999px;
  background: var(--border);
  overflow: hidden;
  margin-top: 4px;
}
.model-loading-bar-fill {
  width: 25%;
  height: 100%;
  border-radius: 999px;
  background: var(--accent);
  animation: loading-bar 1.2s ease-in-out infinite;
}
@keyframes loading-bar {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(400%); }
}

/* Generic pop animation (re-used by toast) */
@keyframes menuIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- 12. Confirm dialog ---------- */
.confirm-card {
  position: fixed;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  background: var(--bg-menu);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  padding: 22px;
  z-index: 110;
  max-width: 340px;
  width: calc(100% - 40px);
  text-align: center;
}
.confirm-card p { font-size: 0.92rem; margin-bottom: 18px; }
.confirm-actions { display: flex; gap: 10px; justify-content: center; }
.confirm-actions button {
  padding: 8px 20px;
  border-radius: 999px;
  font-size: 0.87rem;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-primary);
}
.confirm-actions .danger { background: var(--cta-bg); border-color: var(--cta-bg); color: var(--cta-text); }
.confirm-actions .danger:hover { opacity: 0.9; }

/* ---------- 13. Toast ---------- */
.toast {
  position: fixed;
  bottom: 96px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text-primary);
  color: var(--bg-sidebar);
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 0.84rem;
  box-shadow: var(--shadow-md);
  z-index: 120;
  animation: menuIn 0.2s ease;
  max-width: calc(100vw - 40px);
  text-align: center;
}

/* ---------- 14. Responsive ---------- */
@media (max-width: 900px) {
  .messages { padding: 16px 12px 8px; }
  .composer-zone { padding-left: 10px; padding-right: 10px; }
  .msg.user .bubble { max-width: 90%; }
  .msg.ai .bubble { max-width: 96%; }
  .toast { bottom: 110px; }
}

/* Mobile keeps the required ad inside a compact, single-card shell. */
@media (max-width: 640px) {
  .topbar { gap: 6px; padding-left: 10px; padding-right: 10px; }
  .topbar-title { display: none; }
  .adsterra-ad-shell.inline-ad-mode {
    width: min(100%, 320px);
    min-height: 72px;
    margin: 6px auto;
    padding: 24px 10px 10px;
    border-radius: 14px;
  }
  .adsterra-ad-shell.inline-ad-mode .adsterra-ad-label {
    top: 8px;
    left: 12px;
    font-size: 0.62rem;
  }
  .adsterra-ad-shell.inline-ad-mode .adsterra-close-btn {
    top: 6px;
    right: 6px;
    width: 22px;
    height: 22px;
  }
  .native-ad-container {
    width: min(100%, 288px);
    min-height: 36px;
  }
}

@media (max-width: 380px) {
  .brand-name { font-size: 1rem; }
  .empty-state h1 { font-size: 1.45rem; }
  .composer { padding: 6px; }
}

/* ---------- 15. Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0s !important;
    transition-property: none !important;
  }
  .chat-area { scroll-behavior: auto; }
}






.brand { border: 0; background: transparent; cursor: pointer; font: inherit; text-align: left; }
/* Legacy iframe sizing removed: Native Banner is now direct DOM. */
.md :is(h1,h2,h3,h4,h5,h6) { margin: 1em 0 .5em; line-height: 1.3; }

/* Composer controls stay within the same input card on every viewport. */
.composer { width: 100%; max-width: 780px; display: block; padding: 10px 12px 8px; border-radius: 18px; }
#messageInput { display: block; width: 100%; min-height: 44px; max-height: 180px; padding: 4px 0 8px; font-size: .95rem; }
.composer .composer-meta { margin: 0; justify-content: flex-start; flex-wrap: wrap; gap: 8px; }
.composer-actions { display: flex; align-items: center; gap: 4px; flex-shrink: 0; }
.composer-model, .deep-think-toggle { white-space: nowrap; }
.composer .composer-model, .composer .deep-think-toggle { padding: 6px 10px; }
.mermaid-render-host { position: fixed; left: -100000px; top: 0; width: 800px; height: 600px; visibility: hidden; pointer-events: none; contain: layout style; }
.function-plot { margin: 14px 0; width: 100%; }
.function-plot figcaption { font-weight: 600; margin-bottom: 8px; }
.function-plot svg { display: block; width: 100%; height: auto; background: var(--bg-main); }
.plot-grid { stroke: var(--border); stroke-width: 1; }
.plot-axis { stroke: var(--text-secondary); stroke-width: 1.5; }
.plot-curve { stroke: var(--accent); stroke-width: 2.5; }
.plot-tick, .plot-label { fill: var(--text-secondary); font-family: var(--font-main); font-size: inherit; }
.plot-note { color: var(--text-muted); font-size: .8rem; }
@media (max-width: 540px) {
  .composer { padding: 10px; }
  .composer-actions { margin-left: auto; }
  #messageInput { min-height: 44px; }
}


/* ---------- Editorial theme: styling only; DOM and behavior are unchanged ---------- */
body { font-size: 16px; line-height: 24px; letter-spacing: 0; }
button, input, textarea { font-size: 15px; line-height: 22px; }
.icon-btn { width: 40px; height: 40px; border-radius: var(--radius-sm); }
.sidebar { padding: 16px 12px; gap: 16px; }
.new-chat-btn { min-height: 40px; padding: 9px 14px; border-radius: var(--radius-md); font-size: 15px; font-weight: 500; background: var(--cta-bg); color: var(--cta-text); border-color: var(--cta-bg); }
.new-chat-btn:hover { background: var(--cta-bg); filter: brightness(.9); border-color: var(--cta-bg); box-shadow: none; }
#searchChats { min-height: 40px; border-radius: var(--radius-md); font-size: 15px; }
#searchChats::placeholder, #messageInput::placeholder { color: var(--text-secondary); }
.chat-item { font-size: 15px; line-height: 22px; min-height: 40px; border-radius: var(--radius-sm); }
.chat-list-empty { font-size: 13px; line-height: 20px; color: var(--text-secondary); }
.topbar { min-height: 64px; flex-shrink: 0; gap: 12px; padding: 10px 20px; }
.about-developer-top { top: 12px; min-height: 40px; font-size: 13px; line-height: 20px; font-weight: 500; background: var(--bg-surface); box-shadow: var(--shadow-sm); }
.about-developer-top:hover, .about-developer-top:focus-visible { color: var(--text-primary); background: var(--bg-surface); }
.empty-state { gap: 12px; }
.empty-state h1 { font-family: var(--font-display); font-size: 56px; line-height: 64.4px; font-weight: 300; letter-spacing: -.035em; }
.empty-sub { font-family: var(--font-display); font-size: 18px; line-height: 24.75px; font-weight: 400; }
.empty-lang { font-size: 14px; line-height: 22px; color: var(--text-secondary); }
.messages { max-width: var(--content-max); width: 100%; padding: 32px 24px 24px; gap: 24px; }
.msg { min-width: 0; gap: 12px; }
.bubble { min-width: 0; padding: 16px 20px; border-radius: var(--radius-lg); font-size: 16px; line-height: 24px; letter-spacing: 0; }
.msg.user .bubble { max-width: min(82%, 800px); box-shadow: none; border: 1px solid var(--border); border-bottom-right-radius: 8px; }
.msg.ai .bubble { max-width: min(calc(100% - 44px), 800px); box-shadow: none; border-bottom-left-radius: 8px; }
.msg.ai .bubble[dir="rtl"] { border-bottom-left-radius: var(--radius-lg); border-bottom-right-radius: 8px; }
.md :is(h1,h2,h3,h4,h5,h6) { font-family: var(--font-display); font-weight: 400; letter-spacing: -.015em; }
.md h1 { font-size: 30px; } .md h2 { font-size: 26px; } .md h3 { font-size: 22px; }
.md h4 { font-size: 20px; } .md h5 { font-size: 18px; } .md h6 { font-size: 16px; }
.md a { color: var(--text-primary); text-decoration-color: var(--accent); text-underline-offset: 3px; text-decoration-thickness: 1.5px; }
.md a:hover { text-decoration-thickness: 2px; }
.md code.inline { background: var(--bg-code-head); color: var(--text-code); }
.message-attachment, .attachment-bar { font-size: 13px; line-height: 20px; }
.code-block { border-radius: var(--radius-md); }
.code-head { gap: 8px; flex-wrap: wrap; font-size: 13px; line-height: 20px; }
.code-actions { flex-wrap: wrap; max-width: 100%; }
.code-copy, .code-more { font-size: 13px; line-height: 20px; }
.code-body { font-size: 14px; line-height: 22px; }
.diagram-block { background: var(--bg-card); }
.diagram-body { color: var(--text-secondary); font-size: 14px; }
/* Override Mermaid's default embedded palette without altering its JS renderer. */
.diagram-body svg { background: var(--bg-card); color: var(--text-primary); }
.diagram-body svg :is(.node rect,.node circle,.node ellipse,.node polygon,.node path,rect.actor,.cluster rect,.labelBox,.note,.activation0,.activation1,.activation2) { fill: var(--bg-code) !important; stroke: var(--border-strong) !important; }
.diagram-body svg :is(text,tspan,.nodeLabel,.edgeLabel,.label,.messageText,.loopText,.noteText) { fill: var(--text-primary) !important; color: var(--text-primary) !important; }
.diagram-body svg :is(.edgeLabel,.edgeLabel rect,.labelBkg) { background: var(--bg-card) !important; fill: var(--bg-card) !important; }
.diagram-body svg :is(.flowchart-link,.actor-line,.messageLine0,.messageLine1,.loopLine,.edgePath path) { stroke: var(--text-secondary) !important; }
.diagram-body svg marker path { fill: var(--text-secondary) !important; stroke: var(--text-secondary) !important; }
.typing { border-radius: var(--radius-lg); border-bottom-left-radius: 8px; box-shadow: none; }
.composer-zone { flex-shrink: 0; padding: 12px 24px calc(12px + env(safe-area-inset-bottom)); }
.composer { max-width: var(--content-max); border-radius: 16px; padding: 12px 16px 10px; box-shadow: var(--shadow-md); }
#messageInput { font-size: 15px; line-height: 22px; min-height: 44px; }
.composer .composer-meta { gap: 8px; }
.composer .composer-model, .composer .deep-think-toggle { padding: 6px 10px; font-size: 13px; line-height: 20px; font-weight: 500; color: var(--text-secondary); }
.composer-model { background: var(--bg-hover); border-color: var(--border); }
.deep-think-toggle:hover, .deep-think-toggle.on { color: var(--text-primary); border-color: var(--accent); background: var(--accent-soft); }
.composer-mic, .send-btn, .stop-btn { width: 40px; height: 40px; }
.send-btn { background: var(--cta-bg); color: var(--cta-text); }
.send-btn:hover:not(:disabled) { background: var(--cta-bg); filter: brightness(.9); }
.stop-btn, .composer-mic.listening { background: var(--cta-bg); color: var(--cta-text); }
.stop-btn:hover { background: var(--cta-bg); filter: brightness(.9); }
.composer-hint { font-size: 13px; line-height: 20px; color: var(--text-secondary); }
.attachment-bar, .stream-status { max-width: var(--content-max); }
.stream-status, .plot-note { font-size: 13px; line-height: 20px; color: var(--text-secondary); }
.adsterra-ad-shell.inline-ad-mode { border-radius: var(--radius-lg); background: var(--bg-surface); box-shadow: none; }
.adsterra-ad-label { font-size: 13px; line-height: 20px; color: var(--text-secondary); }
.adsterra-close-btn { background: var(--bg-surface); }
.confirm-card { border-radius: var(--radius-lg); padding: 28px; }
.confirm-card p { font-size: 16px; line-height: 24px; }
.confirm-actions button { min-height: 40px; border-radius: var(--radius-md); font-size: 15px; line-height: 22px; padding: 8px 16px; }
.confirm-actions .danger { background: var(--cta-bg); border-color: var(--cta-bg); color: var(--cta-text); }
.toast { background: var(--cta-bg); color: var(--cta-text); font-size: 13px; line-height: 20px; border-radius: var(--radius-md); }
@media (max-width: 900px) {
  .messages { padding: 24px 16px 16px; gap: 20px; }
  .composer-zone { padding-left: 16px; padding-right: 16px; }
  .msg.user .bubble { max-width: 90%; }
}
@media (max-width: 640px) {
  .topbar { padding-left: 10px; padding-right: 10px; }
  .about-developer-top { padding: 9px; right: 12px; }
  .empty-state h1 { font-size: 40px; line-height: 46px; }
  .messages { padding: 20px 12px 16px; }
  .msg { gap: 10px; }
  .bubble { padding: 14px 16px; border-radius: 24px; }
  .msg.ai .bubble { max-width: calc(100% - 42px); }
  .composer-zone { padding: 10px 10px calc(10px + env(safe-area-inset-bottom)); }
  .composer { padding: 10px; }
  .composer-actions { margin-left: auto; }
  .composer .composer-model, .composer .deep-think-toggle { padding: 5px 8px; }
  .adsterra-ad-shell.inline-ad-mode { padding-top: 32px; border-radius: 24px; }
  .adsterra-ad-shell.inline-ad-mode .adsterra-ad-label { font-size: 13px; line-height: 20px; }
  .composer-hint { padding: 0 8px; }
}

/* SVG measurement must never interpolate transforms during diagram layout. */
.mermaid-render-host, .mermaid-render-host * { transition: none !important; animation: none !important; }
.diagram-body.diagram-error { color: var(--danger); }

@media (prefers-reduced-motion: reduce) {
  .model-loading-bar-fill { animation: none; transform: none; }
  .typing span, .stream-status .dot { animation: none; transform: none; opacity: .75; }
}

/* Local modern icon system and the requested top-left AI label. */
svg.ui-icon { display: inline-block; vertical-align: middle; flex-shrink: 0; stroke-width: 1.75 !important; }
svg.ui-icon[data-icon="brand"] { stroke-width: 1.9 !important; }
.topbar-title, .brand-name { display: inline-flex; align-items: center; gap: 8px; white-space: nowrap; }
.deep-think-toggle { display: inline-flex; align-items: center; justify-content: center; gap: 6px; }
.deep-think-toggle .ui-icon { color: var(--text-secondary); }
.deep-think-toggle.on .ui-icon { color: var(--accent); }
.adsterra-close-btn, .attachment-remove { display: inline-flex; align-items: center; justify-content: center; }
.message-attachment, .attachment-name { display: flex; align-items: center; gap: 6px; min-width: 0; }
.icon-label { min-width: 0; }
.message-attachment .icon-label, .attachment-name .icon-label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.code-more { display: flex; align-items: center; justify-content: center; gap: 6px; }
@media (max-width: 640px) { .topbar-title { display: inline-flex; } }

/* Reference layout: warm, spacious conversation canvas. Marked reference
   controls (Greeting/Share/account strip) are intentionally not added. */
:root { --sidebar-w: clamp(260px, 22vw, 360px); --bg-user-neutral: #F0F0EE; }
[data-mode="dark"], [data-theme="dark"], .dark { --bg-user-neutral: #292927; }
.topbar { min-height: 72px; border-bottom: 0; padding: 14px 24px; }
.topbar-title, .brand-name { font-family: var(--font-display); font-size: 24px; line-height: 32px; font-weight: 400; letter-spacing: -.025em; }
.sidebar { padding: 14px 12px 20px; gap: 16px; }
.sidebar-head { justify-content: flex-start; gap: 10px; padding: 0 2px; }
.new-chat-btn { background: transparent; color: var(--text-primary); border: 0; border-radius: 12px; box-shadow: none; min-height: 44px; padding: 8px 12px; font-size: 16px; font-weight: 400; gap: 14px; }
.new-chat-btn .ui-icon { padding: 4px; width: 28px; height: 28px; border-radius: 50%; background: var(--bg-hover); }
.new-chat-btn:hover { background: var(--bg-hover); filter: none; border-color: transparent; }
#searchChats { font-size: 14px; background: transparent; border-color: var(--border); }
.chat-item { min-height: 42px; gap: 12px; padding: 8px 12px; border-radius: 12px; font-size: 15px; font-weight: 400; }
.chat-item::before { content: ''; width: 6px; height: 6px; border: 1px solid var(--border-strong); border-radius: 50%; flex-shrink: 0; }
.chat-item.active { background: var(--bg-hover); font-weight: 400; }
.messages { max-width: 1150px; padding: 40px 32px 36px; gap: 40px; }
.msg { gap: 0; }
.msg.ai { display: flex; flex-direction: column; align-items: stretch; }
.msg.ai .avatar { display: none; }
.msg.ai .bubble { width: 100%; max-width: 100%; padding: 0; background: transparent; border: 0; border-radius: 0; box-shadow: none; font-family: var(--font-display); font-size: 20px; line-height: 32px; letter-spacing: -.01em; }
.msg.ai .bubble[dir="rtl"] { border-radius: 0; }
.msg.user .bubble { background: var(--bg-user-neutral); color: var(--text-primary); border: 0; border-radius: 20px; padding: 14px 20px; max-width: 80%; font-size: 16px; line-height: 24px; }
.md :is(h1,h2,h3,h4,h5,h6) { margin-top: .65em; }
.md > div > :first-child { margin-top: 0; }
.reply-actions { display: flex; align-items: center; gap: 2px; margin-top: 12px; }
.reply-action { width: 36px; height: 36px; color: var(--text-secondary); border-radius: 8px; }
.reply-action[aria-pressed="true"] { color: var(--text-primary); background: var(--accent-soft); }
.reply-action:disabled { opacity: .45; }
.empty-logo { display: none; }
.empty-state { gap: 14px; }
.empty-state h1 { font-size: 48px; line-height: 56px; }
.typing { border: 0; background: transparent; padding: 18px 0; box-shadow: none; }
.typing span { background: var(--accent); }
.composer-zone { padding: 12px 24px calc(14px + env(safe-area-inset-bottom)); }
.composer { display: flex; align-items: center; gap: 12px; max-width: 1150px; padding: 10px 12px; min-height: 66px; border-radius: 22px; border-color: var(--border-strong); box-shadow: var(--shadow-sm); }
#messageInput { width: auto; flex: 1; min-width: 0; min-height: 44px; font-size: 16px; line-height: 24px; padding: 8px 0; }
.composer-actions { gap: 2px; }
.composer-footer { display: flex; align-items: center; justify-content: space-between; gap: 16px; max-width: 1150px; margin: 8px auto 0; padding: 0 16px; }
.composer-hint { text-align: left; margin: 0; font-size: 13px; line-height: 20px; }
.composer-footer .composer-meta { margin: 0; flex-wrap: wrap; justify-content: flex-end; gap: 8px; flex-shrink: 0; }
.composer-footer .composer-model { background: transparent; border: 0; padding: 0; color: var(--text-primary); font-size: 14px; line-height: 22px; font-weight: 400; }
.composer-footer .deep-think-toggle { border: 0; background: transparent; border-radius: 8px; padding: 4px 6px; font-size: 13px; font-weight: 400; color: var(--text-secondary); }
.composer-footer .deep-think-toggle:hover, .composer-footer .deep-think-toggle.on { background: var(--accent-soft); color: var(--text-primary); }
.about-developer-top { top: 16px; right: 20px; }
@media (min-width: 901px) {
  .sidebar { box-shadow: none; }
  body.sidebar-expanded .sidebar { transform: translateX(0); }
  .main { transition: margin-left .2s ease; }
  body.sidebar-expanded .main { margin-left: var(--sidebar-w); }
  body.sidebar-expanded .topbar .menu-btn, body.sidebar-expanded .topbar-title { display: none; }
}
@media (max-width: 900px) {
  .sidebar { width: 280px; min-width: 280px; }
  .topbar { min-height: 64px; padding: 12px 16px; }
  .messages { padding: 28px 20px 28px; gap: 32px; }
  .composer-zone { padding-left: 16px; padding-right: 16px; }
}
@media (max-width: 640px) {
  .topbar { padding: 10px; gap: 10px; }
  .topbar-title, .brand-name { font-size: 20px; line-height: 28px; }
  .messages { padding: 24px 16px; gap: 28px; }
  .msg.ai .bubble { max-width: 100%; font-size: 18px; line-height: 29px; }
  .msg.user .bubble { max-width: 88%; padding: 12px 16px; }
  .composer-zone { padding: 10px 10px calc(10px + env(safe-area-inset-bottom)); }
  .composer { border-radius: 20px; gap: 6px; padding: 8px; min-height: 62px; }
  #messageInput { font-size: 15px; line-height: 22px; }
  .composer .composer-mic, .composer .send-btn, .composer .stop-btn { width: 36px; height: 36px; }
  .composer-footer { flex-direction: column; align-items: stretch; gap: 4px; padding: 0 6px; }
  .composer-footer .composer-meta { order: -1; justify-content: flex-end; }
  .composer-hint { font-size: 12px; text-align: center; }
  .about-developer-top { top: 12px; right: 12px; }
  .empty-state h1 { font-size: 38px; line-height: 44px; }
}
/* Generous hit areas around the minimal reference glyphs. */
.icon-btn, .reply-action { width: 44px; height: 44px; }
.reply-action:hover { transform: none; }
.composer .composer-mic, .composer .send-btn, .composer .stop-btn { width: 44px; height: 44px; }
.about-developer-top { min-height: 44px; }
.reply-action, .code-copy, .code-more { font-family: var(--font-main); }
/* Larger screens follow the proportions of the supplied desktop reference. */
@media (min-width: 1400px) {
  :root { --sidebar-w: clamp(260px, 22.5vw, 432px); }
  .topbar-title, .brand-name { font-size: clamp(24px, 1.6vw, 30px); line-height: 1.2; }
  body.sidebar-expanded .topbar { min-height: 56px; padding-top: 8px; padding-bottom: 8px; }
  .chat-item, .new-chat-btn { font-size: 18px; line-height: 26px; }
  .messages { padding-top: 68px; gap: 64px; }
  .msg.ai .bubble { font-size: 24px; line-height: 36px; }
  .msg.user .bubble { font-size: 18px; line-height: 28px; padding: 16px 22px; }
  .composer { min-height: 74px; padding: 12px 16px; }
  #messageInput { font-size: 20px; line-height: 28px; }
  .composer-hint { font-size: 16px; line-height: 24px; }
  .composer-footer .composer-model { font-size: 16px; }
}
.msg.ai .bubble[dir="rtl"] + .reply-actions { justify-content: flex-end; }

/* An interrupted network reply stays visible, but is never labeled complete. */
.reply-notice { margin-top: 12px; color: var(--text-secondary); font-family: var(--font-main); font-size: 13px; line-height: 20px; }
/* Streaming/final rerenders must not replay an opacity-zero entrance. */
.msg.ai { animation: none; }

/* Ad delivery states: no permanent empty shells; no-fill hides the shell. */
.ad-delivery-status { margin: 12px 0; color: var(--text-secondary); font-family: var(--font-main); font-size: 13px; }
.ad-delivery-status[hidden] { display: none; }

/* Native Banner supplies its own inner layout. Do not flex its card roots. */
.native-ad-container { display: block; min-height: 0; width: 100%; overflow: hidden; }
.native-ad-container > * { max-width: 100%; }

/* v61: one reusable Native Banner, two full cards; no cropped creatives.
   Desktop uses a wider shell. Mobile keeps the same unit compact.
   Provider close/report controls and click destinations stay untouched. */
.adsterra-ad-shell.inline-ad-mode {
  width: min(100%, 620px); max-width: 620px;
  padding: 46px 16px 16px;
}
.adsterra-ad-shell.inline-ad-mode .adsterra-close-btn {
  top: 2px; right: 2px; width: 44px; height: 44px;
}
#container-63ea484e1a293480518c8d527b5e81e3 [class$="__stand"] {
  display: grid !important;
  grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
  gap: 12px !important;
}
#container-63ea484e1a293480518c8d527b5e81e3 [class$="__bn-container"] {
  min-width: 0 !important; width: auto !important; padding: 0 !important;
}
#container-63ea484e1a293480518c8d527b5e81e3 [class$="__title"] {
  font-family: var(--font-main) !important;
  font-size: 14px !important; line-height: 20px !important;
  white-space: normal !important; overflow-wrap: anywhere;
  height: auto !important; max-height: none !important;
  overflow: visible !important; -webkit-line-clamp: unset !important;
}
@media (max-width: 640px) {
  .adsterra-ad-shell.inline-ad-mode {
    width: min(100%, 320px); max-width: 320px;
    padding: 44px 10px 10px; border-radius: 14px;
  }
  #container-63ea484e1a293480518c8d527b5e81e3 [class$="__stand"] { gap: 8px !important; }
}

.continue-reply { margin: 8px 0 0 10px; padding: 8px 12px; min-height: 44px; border: 1px solid var(--border-strong); border-radius: 10px; background: var(--bg-surface); color: var(--text-primary); font: 14px var(--font-main); cursor: pointer; }
.continue-reply:disabled { opacity: .5; cursor: not-allowed; }
.continue-reply:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.stream-code-preview { font: 13px/20px monospace; white-space: pre-wrap; overflow-wrap: anywhere; max-width: 100%; background: var(--bg-code); padding: 12px; border-radius: 12px; }

.reply-notice { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }
.reply-notice .continue-reply { margin: 0; }

/* Screen-reader instructions only; no visual layout/theme changes. */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }