/* yAI: shared styles for the chat, usage and admin pages.
   The 2026-10-20 redesign (Claude Design, "yAI Redesign"): warm off-whites and near-blacks, Geist for reading and
   Geist Mono for numbers, code and keys. Hierarchy comes from weight and spacing, not boxes. One accent, purple, used
   only on send, active toggles, citations and limits near their cap. */

:root {
  --bg: #f8f8f6;
  --surface: #ffffff;
  --side: #f2f2ef;
  --surface-2: #efeeea;
  --hover: #e7e6e2;
  --text: #1c1c1a;
  --text-2: #5c5c57;
  --muted: #86857f;
  --faint: #a9a8a2;
  --border: #e6e5e1;
  --border-strong: #d6d5d0;
  --ink: #1c1c1a;
  --on-ink: #f8f8f6;
  --acc: oklch(0.54 0.19 295);
  --acc-on: #ffffff;
  --acc-soft: oklch(0.95 0.035 295);
  --acc-ink: oklch(0.48 0.19 295);
  --link: oklch(0.48 0.19 295);
  --ok: oklch(0.66 0.14 150);
  --bad: #c2412d;
  --warn: #a8660b;
  --user-bg: #ecebe7;
  --code-bg: #f6f5f2;
  --scrim: rgba(20, 20, 18, 0.32);
  --focus: oklch(0.95 0.035 295);
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 8px 24px rgba(0, 0, 0, 0.06);
  --shadow-menu: 0 1px 2px rgba(20, 20, 15, 0.06), 0 12px 32px rgba(20, 20, 15, 0.12);
  --sans: Geist, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "Geist Mono", ui-monospace, "SF Mono", Consolas, monospace;
  --serif: Geist, ui-sans-serif, system-ui, sans-serif; /* headings are Geist now; kept for the admin page */
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #141413;
    --surface: #1b1b1a;
    --side: #101010;
    --surface-2: #252523;
    --hover: #252523;
    --text: #ecebe7;
    --text-2: #a4a39d;
    --muted: #7a7974;
    --faint: #5e5d59;
    --border: #2a2a27;
    --border-strong: #383834;
    --ink: #ecebe7;
    --on-ink: #141413;
    --acc: oklch(0.72 0.15 295);
    --acc-on: #160d24;
    --acc-soft: oklch(0.3 0.07 295);
    --acc-ink: oklch(0.8 0.12 295);
    --link: oklch(0.8 0.12 295);
    --ok: oklch(0.72 0.14 150);
    --bad: #ff8a73;
    --warn: #e0a64a;
    --user-bg: #282826;
    --code-bg: #121211;
    --scrim: rgba(0, 0, 0, 0.55);
    --focus: oklch(0.3 0.07 295);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 12px 32px rgba(0, 0, 0, 0.4);
    --shadow-menu: 0 1px 2px rgba(0, 0, 0, 0.4), 0 12px 32px rgba(0, 0, 0, 0.5);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #141413; --surface: #1b1b1a; --side: #101010; --surface-2: #252523; --hover: #252523; --text: #ecebe7; --text-2: #a4a39d;
  --muted: #7a7974; --faint: #5e5d59; --border: #2a2a27; --border-strong: #383834; --ink: #ecebe7; --on-ink: #141413;
  --acc: oklch(0.72 0.15 295); --acc-on: #160d24; --acc-soft: oklch(0.3 0.07 295); --acc-ink: oklch(0.8 0.12 295); --link: oklch(0.8 0.12 295);
  --ok: oklch(0.72 0.14 150); --bad: #ff8a73; --warn: #e0a64a; --user-bg: #282826; --code-bg: #121211; --scrim: rgba(0, 0, 0, 0.55);
  --focus: oklch(0.3 0.07 295); --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 12px 32px rgba(0, 0, 0, 0.4);
  --shadow-menu: 0 1px 2px rgba(0, 0, 0, 0.4), 0 12px 32px rgba(0, 0, 0, 0.5); color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; -webkit-tap-highlight-color: transparent; touch-action: manipulation; }
:focus-visible { outline: 2px solid var(--acc); outline-offset: 2px; border-radius: 6px; }
[hidden] { display: none !important; }
.muted { color: var(--muted); }
.show-sm { display: none; }
.grow { flex: 1; }
kbd, .kbd { font: 400 11.5px var(--mono); color: var(--muted); }

/* ---------- Brand: "yAI" with the purple dot ---------- */
.logo-word { display: inline-flex; align-items: center; gap: 5px; font-size: 20px; letter-spacing: -0.04em; color: var(--text); text-decoration: none; line-height: 1; }
.logo-word b { font-weight: 700; }
.logo-word span { font-weight: 400; }
.logo-word i { width: 6px; height: 6px; border-radius: 50%; background: var(--acc); margin-top: 7px; }
.mark {
  width: 22px; height: 22px; border-radius: 6px; flex: none;
  display: inline-grid; place-items: center;
  background: var(--ink); color: var(--on-ink);
  font-weight: 600; font-size: 12.5px; letter-spacing: -0.02em;
}
.wordmark { display: inline-flex; align-items: center; gap: 9px; font-weight: 600; font-size: 15px; letter-spacing: -0.01em; }
.logo { display: inline-grid; place-items: center; width: 22px; height: 22px; border-radius: 6px; background: var(--ink); color: var(--on-ink); font-weight: 600; font-size: 12.5px; flex: none; }
.logo-lg { width: 32px; height: 32px; font-size: 16px; border-radius: 8px; margin: 0 0 18px; }
.logo-sm { display: none; }
svg.mark { width: 22px; height: 22px; flex: none; display: block; }

/* ---------- Buttons ---------- */
.btn-primary {
  width: 100%; height: 42px; border: 0; border-radius: 10px;
  background: var(--acc); color: var(--acc-on); font-weight: 600;
}
.btn-primary:hover { filter: brightness(1.06); }
.btn-primary:disabled { opacity: 0.5; cursor: default; }
.btn-ghost {
  display: inline-flex; align-items: center; gap: 6px; height: 34px; padding: 0 12px;
  background: transparent; border: 1px solid var(--border); border-radius: 10px;
  font-size: 13.5px; font-weight: 500; color: var(--text-2); text-decoration: none; white-space: nowrap; flex: none;
}
.btn-ghost:hover { background: var(--hover); color: var(--text); }
.btn-plain { height: 40px; padding: 0 16px; border: 0; border-radius: 10px; background: none; font-weight: 500; color: var(--text-2); }
.btn-plain:hover { background: var(--hover); color: var(--text); }
.icon-btn {
  width: 34px; height: 34px; flex: none; display: inline-grid; place-items: center;
  border: 0; border-radius: 8px; background: transparent; color: var(--muted);
}
.icon-btn:hover { background: var(--hover); color: var(--text); }
.icon-btn:disabled { opacity: 0.35; cursor: default; }

/* ---------- Gate / login ---------- */
.gate { position: relative; min-height: 100%; display: grid; place-items: center; padding: 24px 16px; }
.gate:not(.dialog) {
  grid-template-columns: minmax(0, 1fr) 400px; align-items: start; align-content: start; place-items: start stretch;
  gap: 40px; max-width: 1480px; margin: 0 auto; padding: 40px max(24px, env(safe-area-inset-right)) 40px max(24px, env(safe-area-inset-left));
}
.gate-tour { margin: 0; min-width: 0; }
.gate-tour-frame {
  aspect-ratio: 16 / 9; overflow: hidden; border-radius: 18px; border: 1px solid var(--border);
  background: #0b0d10 url("/yai-tour-poster.jpg") center / cover no-repeat; box-shadow: var(--shadow);
}
.gate-tour-frame video { display: block; width: 100%; height: 100%; object-fit: cover; }
.gate-tour figcaption { margin-top: 10px; font-size: 13px; color: var(--muted); }
.gate.dialog .gate-tour { display: none; }
.gate:not(.dialog) .gate-card {
  max-width: none; padding: 32px 28px 28px; background: var(--surface); border: 1px solid var(--border);
  border-radius: 18px; box-shadow: var(--shadow);
}
.gate:not(.dialog) .gate-card .wordmark { margin-bottom: 28px; }
.gate-request ol { margin: 0 0 22px; padding-left: 20px; display: grid; gap: 8px; font-size: 14.5px; line-height: 1.5; color: var(--text-2); }
.gate-request .btn-primary { display: flex; align-items: center; justify-content: center; text-decoration: none; }
@media (max-width: 1000px) {
  .gate:not(.dialog) { grid-template-columns: minmax(0, 1fr); gap: 24px; padding-top: 24px; }
  .gate:not(.dialog) .gate-card { max-width: 520px; width: 100%; justify-self: center; }
}
.gate-card { width: 100%; max-width: 360px; position: relative; }
.gate-card .wordmark { margin-bottom: 40px; }
.gate-card h1 { font: 600 28px/1.15 var(--sans); letter-spacing: -0.03em; margin: 0 0 8px; }
.gate-card p { margin: 0 0 24px; font-size: 14.5px; color: var(--text-2); }
.gate-card input {
  width: 100%; height: 44px; padding: 0 14px; margin-bottom: 10px;
  border: 1px solid var(--border-strong); border-radius: 10px; background: var(--surface); outline: none;
}
.gate-card input:focus { border-color: var(--acc); box-shadow: 0 0 0 4px var(--acc-soft); }
.gate-error { min-height: 20px; margin: 0 0 6px !important; color: var(--bad); font-size: 13.5px; }
.shake { animation: shake 0.3s; }
@keyframes shake { 25% { transform: translateX(-5px); } 75% { transform: translateX(5px); } }
.gate-close { position: absolute; top: 14px; right: 14px; }
.gate.dialog {
  position: fixed; inset: 0; z-index: 60; min-height: 0;
  background: var(--scrim); backdrop-filter: blur(2px);
}
.gate.dialog .gate-card { max-width: 400px; padding: 32px 28px 28px; background: var(--surface); border: 1px solid var(--border); border-radius: 18px; box-shadow: 0 24px 80px rgba(0, 0, 0, 0.28); }
.gate.dialog .gate-card .wordmark { margin-bottom: 28px; }
.segmented { display: flex; gap: 2px; padding: 3px; margin: 0 0 20px; border-radius: 10px; background: var(--surface-2); }
.segmented button, .segmented a { flex: 1 1 auto; height: 30px; padding: 0 12px; border: 0; border-radius: 7px; background: none; font-size: 13px; font-weight: 500; color: var(--text-2); white-space: nowrap; display: inline-flex; align-items: center; justify-content: center; text-decoration: none; }
.segmented button[aria-selected="true"], .segmented a[aria-selected="true"] { background: var(--surface); color: var(--text); box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08); }
.field { display: block; margin-bottom: 12px; }
.field span { display: block; margin-bottom: 6px; font-size: 13px; font-weight: 500; color: var(--text); }
.field input { margin-bottom: 0 !important; }

/* ---------- Shell: sidebar (or rail) + the chat column ---------- */
.shell { display: flex; height: 100vh; height: 100dvh; }
.shell > .app { flex: 1; min-width: 0; height: 100%; }
.app { height: 100vh; height: 100dvh; display: flex; flex-direction: column; background: var(--bg); }

.sidebar {
  width: 272px; flex: none; display: flex; flex-direction: column; height: 100%;
  background: var(--side); border-right: 1px solid var(--border); font-size: 14px;
}
.sidebar-head { height: 56px; flex: none; display: flex; align-items: center; justify-content: space-between; padding: 0 12px 0 20px; padding-top: env(safe-area-inset-top); }
.sidebar-head .icon-btn { width: 32px; height: 32px; color: var(--muted); }
.side-new-wrap { padding: 4px 12px 18px; flex: none; }
.side-new {
  width: 100%; height: 38px; display: flex; align-items: center; gap: 10px; padding: 0 12px;
  border: 1px solid var(--border); border-radius: 10px; background: var(--surface); box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  font-weight: 500; color: var(--text); text-align: left; text-decoration: none;
}
.side-new span { flex: 1; }
.side-new:hover { border-color: var(--border-strong); }
.side-scroll { flex: 1; min-height: 0; overflow-y: auto; padding: 0 12px 16px; display: flex; flex-direction: column; gap: 22px; }
.side-label { display: flex; align-items: center; justify-content: space-between; padding: 0 8px 6px; font-size: 12px; font-weight: 500; color: var(--muted); }
.side-label .icon-btn { width: 24px; height: 24px; margin: -4px -4px -4px 0; border-radius: 6px; }
.chat-list { display: flex; flex-direction: column; gap: 22px; }
.chat-group { padding: 0 8px 6px; font-size: 12px; font-weight: 500; color: var(--muted); }
.chat-group-list { display: flex; flex-direction: column; gap: 1px; }
.chat-item { position: relative; display: flex; align-items: center; border-radius: 8px; }
.chat-item:hover, .chat-item.active { background: var(--hover); }
.chat-open {
  flex: 1; min-width: 0; height: 32px; padding: 0 8px; border: 0; background: none; text-align: left;
  font-size: 14px; color: var(--text-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; text-decoration: none; line-height: 32px;
}
.chat-item.active .chat-open { color: var(--text); font-weight: 500; }
.chat-del {
  flex: none; width: 28px; height: 28px; margin-right: 2px; border: 0; border-radius: 6px; background: none;
  color: var(--muted); display: grid; place-items: center; opacity: 0;
}
.chat-item:hover .chat-del, .chat-del:focus-visible { opacity: 1; }
.chat-del:hover { color: var(--bad); background: var(--surface); }
.chat-empty { padding: 4px 8px; font-size: 13px; color: var(--muted); line-height: 1.45; }
.side-foot { flex: none; padding: 10px 12px 14px; padding-bottom: max(14px, env(safe-area-inset-bottom)); border-top: 1px solid var(--border); display: flex; flex-direction: column; gap: 2px; }
.side-link {
  height: 36px; display: flex; align-items: center; gap: 10px; padding: 0 8px; border: 0; border-radius: 8px;
  background: none; color: var(--text-2); text-decoration: none; text-align: left; width: 100%; font-size: 14px;
}
.side-link:hover, .side-link.active { background: var(--hover); color: var(--text); }
.side-link.active { font-weight: 500; }
.side-link svg { flex: none; }
.side-link .grow { flex: 1; }
.side-tag { font: 500 10.5px var(--mono); color: var(--muted); border: 1px solid var(--border-strong); border-radius: 5px; padding: 1px 5px; }
.side-me { display: none; align-items: center; gap: 10px; padding: 12px 8px 2px; margin-top: 6px; border-top: 1px solid var(--border); }
.side-me .avatar { width: 30px; height: 30px; font-size: 12px; }
.side-me-text { display: flex; flex-direction: column; line-height: 1.3; min-width: 0; }
.side-me-text b { font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.side-me-text small { font-size: 12px; color: var(--muted); }
.only-drawer { display: none !important; }

/* The collapsed sidebar: a 64px rail of icons (desktop) */
.rail {
  width: 64px; flex: none; height: 100%; display: none; flex-direction: column; align-items: center; gap: 6px;
  background: var(--side); border-right: 1px solid var(--border); color: var(--text-2); padding: 12px 0 14px;
}
.rail-logo { height: 36px; display: flex; align-items: center; gap: 3px; font-size: 20px; color: var(--text); letter-spacing: -0.04em; font-weight: 700; text-decoration: none; }
.rail-logo i { width: 5px; height: 5px; border-radius: 50%; background: var(--acc); margin-top: 7px; }
.rail-btn { width: 40px; height: 40px; border: 0; border-radius: 10px; background: none; color: var(--text-2); display: grid; place-items: center; text-decoration: none; }
.rail-btn:hover { background: var(--hover); color: var(--text); }
.rail-btn.new { border: 1px solid var(--border); background: var(--surface); color: var(--text); border-radius: 11px; margin: 4px 0 8px; }
.rail-btn.toggle { height: 36px; color: var(--muted); }

.side-backdrop { position: fixed; inset: 0; z-index: 40; background: var(--scrim); }
@media (min-width: 901px) {
  .side-backdrop { display: none !important; }
  .shell.side-collapsed .sidebar { display: none; }
  .shell.with-sidebar.side-collapsed .rail { display: flex; }
  .side-toggle { display: none !important; } /* desktop: the sidebar and the rail have their own buttons */
}
@media (max-width: 900px) {
  .sidebar {
    position: fixed; z-index: 45; top: 0; bottom: 0; left: 0; width: min(312px, 86vw);
    transform: translateX(-100%); transition: transform 0.22s ease; box-shadow: 0 0 40px rgba(0, 0, 0, 0.25);
  }
  .shell.side-open .sidebar { transform: none; }
  .chat-del { opacity: 1; }
  .only-drawer { display: flex !important; }
  .side-me { display: flex; }
}

/* ---------- Top bar ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  height: 56px; flex: none;
  padding: env(safe-area-inset-top) max(20px, env(safe-area-inset-right)) 0 max(16px, env(safe-area-inset-left));
  background: var(--bg);
}
.brand-wrap { display: flex; align-items: center; gap: 8px; min-width: 0; }
.brand { display: inline-flex; align-items: center; gap: 9px; color: inherit; text-decoration: none; border-radius: 8px; padding: 4px 6px; }
.brand:hover { background: var(--hover); }
.shell.with-sidebar .brand { display: none; }
.brand-name { font-weight: 600; font-size: 15px; letter-spacing: -0.01em; white-space: nowrap; }
.topbar-right { display: flex; align-items: center; gap: 10px; min-width: 0; }
.status { display: inline-flex; align-items: center; gap: 7px; font-size: 12px; color: var(--muted); white-space: nowrap; }
.status .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--faint); }
.status.ok .dot { background: var(--ok); box-shadow: 0 0 0 3px color-mix(in srgb, var(--ok) 18%, transparent); }
.status.bad .dot { background: var(--bad); }
.status.bad { color: var(--bad); }
.crumb { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--muted); min-width: 0; max-width: 420px; }
.crumb span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.crumb .crumb-chat { color: var(--text-2); }

/* ---------- Model picker (left of the top bar) ---------- */
.model-picker { position: relative; min-width: 0; }
.model-btn {
  display: inline-flex; align-items: center; gap: 6px; max-width: 100%; height: 36px; padding: 0 10px 0 12px;
  border: 0; border-radius: 10px; background: none;
  font-size: 15px; font-weight: 600; letter-spacing: -0.01em; color: var(--text);
}
.model-btn:hover, .model-btn[aria-expanded="true"] { background: var(--hover); }
.model-btn span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.model-btn svg { flex: none; color: var(--muted); }
.model-menu {
  position: absolute; left: 0; top: calc(100% + 6px); z-index: 30;
  width: 300px; max-width: calc(100vw - 24px); padding: 5px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 14px; box-shadow: var(--shadow-menu);
}
.model-option {
  display: flex; align-items: center; gap: 10px; width: 100%; padding: 9px 10px;
  border: 0; border-radius: 9px; background: none; text-align: left;
}
.model-option:hover, .model-option:focus-visible { background: var(--hover); outline: none; }
.model-option:disabled { opacity: 0.5; cursor: not-allowed; }
.model-option:disabled:hover { background: none; }
.model-option-text { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.model-option-name { font-size: 14px; font-weight: 500; }
.model-option-desc { font-size: 12.5px; color: var(--muted); line-height: 1.4; }
.model-check { flex: none; color: var(--acc); visibility: hidden; }
.model-option[aria-selected="true"] .model-check { visibility: visible; }

/* ---------- Welcome ---------- */
.scroller { flex: 1; overflow-y: auto; overscroll-behavior: contain; }
.messages, .welcome { max-width: 760px; margin: 0 auto; }
.messages { padding: 24px 32px 24px; }
.welcome { padding: 15vh 32px 24px; }
.welcome h2 { font: 600 30px/1.15 var(--sans); letter-spacing: -0.03em; margin: 0 0 8px; }
.welcome p { margin: 0 0 26px; font-size: 15px; color: var(--text-2); }
.suggestions { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.suggestion {
  display: flex; align-items: center; justify-content: space-between; gap: 12px; width: 100%;
  padding: 12px 14px; border: 1px solid var(--border); border-radius: 12px; background: var(--surface); text-align: left; font-size: 14.5px; color: var(--text-2);
}
.suggestion::after { content: "→"; color: var(--faint); transition: transform 0.15s, color 0.15s; }
.suggestion:hover { color: var(--text); border-color: var(--border-strong); }
.suggestion:hover::after { color: var(--acc-ink); transform: translateX(3px); }
.suggestion > span { display: flex; align-items: baseline; gap: 12px; }
.suggestion-tag { flex: none; width: 52px; font: 500 11px var(--mono); letter-spacing: 0.02em; color: var(--muted); text-transform: uppercase; }
.welcome-note { margin-top: 22px !important; font-size: 13.5px !important; color: var(--muted); }
.link-btn { border: 0; background: none; padding: 0; color: var(--acc-ink); font-weight: 500; }
.link-btn:hover { text-decoration: underline; text-underline-offset: 3px; }

/* ---------- Messages ---------- */
.msg { margin-bottom: 28px; }
.msg.user { display: flex; justify-content: flex-end; }
.user-stack { display: flex; flex-direction: column; align-items: flex-end; gap: 6px; max-width: 72%; }
.msg.user .bubble {
  background: var(--user-bg); color: var(--text); padding: 11px 16px; border-radius: 20px 20px 6px 20px;
  font-size: 15px; line-height: 1.55; max-width: 100%; white-space: pre-wrap; overflow-wrap: anywhere;
}
.msg.assistant .body { min-width: 0; display: flex; flex-direction: column; gap: 14px; }
.content { overflow-wrap: anywhere; color: var(--text); font-size: 15px; line-height: 1.7; text-wrap: pretty; }
.content > :first-child { margin-top: 0; }
.content > :last-child { margin-bottom: 0; }
.content p { margin: 0 0 14px; }
.content h1, .content h2, .content h3 { font-size: 17px; font-weight: 600; margin: 24px 0 8px; letter-spacing: -0.015em; }
.content h4 { font-size: 15px; font-weight: 600; margin: 18px 0 6px; }
.content ul, .content ol { margin: 0 0 14px; padding-left: 20px; }
.content li { margin: 6px 0; }
.content li::marker { color: var(--muted); }
.content strong { font-weight: 600; }
.content a { color: var(--link); text-underline-offset: 2px; }
.content blockquote { margin: 0 0 14px; padding: 0 0 0 14px; border-left: 2px solid var(--border-strong); color: var(--text-2); }
.content hr { border: 0; border-top: 1px solid var(--border); margin: 20px 0; }
.content :not(pre) > code { font-family: var(--mono); font-size: 0.86em; background: var(--surface-2); padding: 2px 5px; border-radius: 5px; }

/* Code blocks: a header with the language, Preview (web code) and Copy */
.code { margin: 0 0 16px; border: 1px solid var(--border); border-radius: 14px; overflow: hidden; background: var(--code-bg); }
.code-head {
  display: flex; align-items: center; gap: 2px; height: 42px; padding: 0 6px 0 14px;
  border-bottom: 1px solid var(--border); background: var(--surface); font: 500 12.5px var(--mono); color: var(--text-2);
}
.code-head > span:first-child { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.copy-code, .preview-code {
  height: 30px; display: inline-flex; align-items: center; gap: 6px; padding: 0 10px; border: 0; border-radius: 8px;
  background: none; color: var(--text-2); font: 500 12.5px var(--sans);
}
.copy-code:hover { background: var(--hover); color: var(--text); }
.preview-code { background: var(--acc-soft); color: var(--acc-ink); }
.preview-code:hover { filter: brightness(0.97); }
.code pre { margin: 0; padding: 14px 18px 16px; overflow-x: auto; }
.code code { font: 400 13px/1.75 var(--mono); color: var(--text); }
.content .table { overflow-x: auto; margin: 0 0 16px; border: 1px solid var(--border); border-radius: 12px; }
.content table { border-collapse: collapse; width: 100%; font-size: 13.5px; line-height: 1.4; }
.content th, .content td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--border); vertical-align: top; }
.content th { font-weight: 500; color: var(--text-2); background: var(--surface); white-space: nowrap; }
.content tr:last-child td { border-bottom: 0; }
.content td { font-variant-numeric: tabular-nums; }
.content .math { margin: 0 0 16px; overflow-x: auto; overflow-y: hidden; padding: 4px 0; }
/* A formula wider than the answer scrolls sideways; a soft shadow on the cut-off edge shows there is more
   (the page-coloured covers move with the content, the shadows stay with the box, so each one shows only while
   there is something to scroll to on that side). */
.content .math {
  background:
    linear-gradient(to right, var(--bg) 40%, transparent) left / 32px 100% no-repeat local,
    linear-gradient(to left, var(--bg) 40%, transparent) right / 32px 100% no-repeat local,
    radial-gradient(farthest-side at 0 50%, color-mix(in srgb, var(--text) 22%, transparent), transparent) left / 12px 100% no-repeat scroll,
    radial-gradient(farthest-side at 100% 50%, color-mix(in srgb, var(--text) 22%, transparent), transparent) right / 12px 100% no-repeat scroll;
}
.content .katex { font-size: 1.08em; }
.content .katex-display { margin: 0; }

.typing { display: inline-flex; gap: 4px; padding: 8px 0; }
.typing span { width: 5px; height: 5px; border-radius: 50%; background: var(--faint); animation: pulse 1.2s infinite; }
.typing span:nth-child(2) { animation-delay: 0.15s; }
.typing span:nth-child(3) { animation-delay: 0.3s; }
@keyframes pulse { 0%, 60%, 100% { opacity: 0.35; } 30% { opacity: 1; } }

.actions { display: flex; align-items: center; gap: 12px; margin: 0 0 0 -8px; color: var(--muted); }
.action {
  display: inline-flex; align-items: center; gap: 6px; height: 28px; padding: 0 8px;
  border: 0; border-radius: 7px; background: none; color: var(--muted); font-size: 12.5px; text-decoration: none;
}
.action:hover { background: var(--hover); color: var(--text); }
.meta { font: 400 11.5px var(--mono); color: var(--muted); font-variant-numeric: tabular-nums; }
.error {
  padding: 10px 12px; border-radius: 10px; font-size: 14px;
  color: var(--bad); background: color-mix(in srgb, var(--bad) 8%, transparent);
  border: 1px solid color-mix(in srgb, var(--bad) 22%, transparent);
}

/* Attachments shown in sent messages, and pending ones in the composer */
.att-row { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 6px; }
.att-img { width: 112px; height: 112px; object-fit: cover; border-radius: 12px; border: 1px solid var(--border); background: #fff; }
.att-file, .chip {
  position: relative; display: flex; align-items: center; gap: 10px; max-width: 240px;
  padding: 6px 12px 6px 6px; border-radius: 12px; background: var(--surface); border: 1px solid var(--border);
}
.att-file img, .chip img { width: 36px; height: 36px; object-fit: cover; border-radius: 7px; flex: none; background: #fff; border: 1px solid var(--border); }
.chip-icon {
  width: 36px; height: 36px; border-radius: 7px; flex: none; display: grid; place-items: center;
  font: 600 9.5px var(--mono); letter-spacing: 0.02em; color: var(--text-2); background: var(--surface-2);
}
.chip-text { min-width: 0; }
.chip-name { font-size: 13px; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.chip-sub { font-size: 12px; color: var(--muted); white-space: nowrap; }
.chip { flex: none; padding-right: 32px; }
.chip.loading .chip-sub::after {
  content: ""; display: inline-block; width: 8px; height: 8px; margin-left: 6px; vertical-align: -1px;
  border: 1.5px solid var(--muted); border-right-color: transparent; border-radius: 50%; animation: spin 0.8s linear infinite;
}
.chip.error { border-color: color-mix(in srgb, var(--bad) 40%, var(--border)); }
.chip.error .chip-sub { color: var(--bad); }
@keyframes spin { to { transform: rotate(360deg); } }
.chip-x {
  position: absolute; top: 50%; right: 6px; transform: translateY(-50%); width: 22px; height: 22px;
  border: 0; border-radius: 6px; background: none; color: var(--muted); font-size: 16px; line-height: 1; display: grid; place-items: center;
}
.chip-x:hover { background: var(--hover); color: var(--text); }

/* ---------- Composer ---------- */
.composer-wrap { flex: none; padding: 0 max(32px, env(safe-area-inset-right)) calc(18px + env(safe-area-inset-bottom)) max(32px, env(safe-area-inset-left)); }
.composer {
  max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 8px; position: relative;
  background: var(--surface); border: 1px solid var(--border-strong); border-radius: 20px; box-shadow: var(--shadow);
  padding: 12px 12px 10px 14px; transition: border-color 0.15s;
}
.composer:focus-within { border-color: color-mix(in srgb, var(--acc) 45%, var(--border-strong)); }
.composer textarea {
  width: 100%; border: 0; outline: 0; resize: none; background: transparent; caret-color: var(--acc);
  padding: 4px 2px 8px; min-height: 30px; max-height: 220px; font-size: 15px; line-height: 1.5;
}
.composer textarea::placeholder { color: var(--muted); }
.composer-bar { display: flex; align-items: center; gap: 6px; }
.composer-hint { display: none; }
#attach {
  width: 34px; height: 34px; border-radius: 50%; border: 1px solid var(--border); color: var(--text-2);
}
#attach:hover { background: var(--hover); color: var(--text); }
.mode-btn {
  display: inline-flex; align-items: center; gap: 7px; height: 34px; padding: 0 13px 0 11px;
  border: 1px solid var(--border); border-radius: 999px; background: transparent; color: var(--text-2); font-size: 13px; font-weight: 500;
}
.mode-btn:hover { color: var(--text); border-color: var(--border-strong); }
.mode-btn[aria-pressed="true"] { background: var(--acc-soft); border-color: transparent; color: var(--acc-ink); }
.send {
  margin-left: auto; width: 36px; height: 36px; flex: none; border: 0; border-radius: 50%;
  display: grid; place-items: center; background: var(--acc); color: var(--acc-on); transition: background 0.15s, color 0.15s;
}
.send:disabled { background: var(--surface-2); color: var(--muted); cursor: default; }
.send .icon-stop, .send.busy .icon-send { display: none; }
.send.busy { background: var(--ink); color: var(--on-ink); }
.send.busy .icon-stop { display: block; }
.fineprint { max-width: 760px; margin: 8px auto 0; text-align: center; font-size: 11.5px; color: var(--muted); }

.tray { display: flex; gap: 8px; overflow-x: auto; padding: 0 0 2px; scrollbar-width: thin; }
/* Model loading, at the top of the composer */
.loadbar {
  position: relative; display: flex; justify-content: space-between; gap: 12px;
  margin: -2px 0 2px; padding: 0 2px 9px; font-size: 12.5px; color: var(--muted); border-bottom: 1px solid var(--border);
}
#loadText { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#loadPct { font-family: var(--mono); font-size: 12px; font-variant-numeric: tabular-nums; }
.loadbar-track { position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; background: transparent; }
.loadbar-fill { height: 100%; width: 0; background: var(--acc); transition: width 0.25s ease-out; }
.loadbar.error { color: var(--bad); }
.loadbar.error .loadbar-track { display: none; }
.loadbar.waking .loadbar-fill { width: 30% !important; animation: waking 1.6s ease-in-out infinite; }
@keyframes waking { 0% { transform: translateX(-100%); } 100% { transform: translateX(340%); } }

/* Shape picker (1:1 / 16:9 / 9:16) in Make Image / Make Video */
.aspect-pick { display: inline-flex; height: 34px; border: 1px solid var(--border); border-radius: 999px; overflow: hidden; }
.aspect-pick[hidden] { display: none; }
.aspect-pick button {
  display: inline-flex; align-items: center; gap: 6px; padding: 0 10px; border: 0; background: none;
  color: var(--muted); font-size: 12.5px; font-weight: 500;
}
.aspect-pick button + button { border-left: 1px solid var(--border); }
.aspect-pick button:hover { color: var(--text); }
.aspect-pick button[aria-checked="true"] { background: var(--acc-soft); color: var(--acc-ink); }
.aspect-pick .ar { display: inline-block; border: 1.6px solid currentColor; border-radius: 2px; }

/* Drag-and-drop */
.drop-overlay {
  position: fixed; inset: 0; z-index: 50; display: none; place-items: center; pointer-events: none;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
}
.drop-overlay div {
  padding: 22px 32px; border-radius: 14px; border: 1.5px dashed var(--acc);
  background: var(--surface); color: var(--text-2); font-weight: 500;
}
.app.dragging .drop-overlay { display: grid; }

/* ---------- Generated images and videos ---------- */
.gen-media { margin: 0; }
.gen-media img, .gen-media video {
  display: block; width: 100%; max-width: 512px; height: auto; border-radius: 14px; border: 1px solid var(--border); background: var(--surface-2);
}
.gen-media video { max-width: 640px; background: #000; }
.image-status { display: flex; flex-direction: column; gap: 10px; color: var(--muted); font-size: 14px; }
.image-ph {
  width: 100%; max-width: 512px; aspect-ratio: 1; border-radius: 14px; border: 1px solid var(--border);
  background: linear-gradient(100deg, var(--surface-2) 30%, var(--hover) 50%, var(--surface-2) 70%) 0 0 / 300% 100%;
  animation: shimmer 1.6s linear infinite;
}
.image-ph.video { max-width: 640px; aspect-ratio: 16 / 9; }
@keyframes shimmer { to { background-position: -150% 0; } }
a.action.download { text-decoration: none; }

/* ---------- Search the web: progress, citations and sources ---------- */
.searched { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--muted); }
.searching { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); font-size: 14px; }
.searching::before { content: ""; width: 12px; height: 12px; border: 2px solid var(--border-strong); border-top-color: var(--acc); border-radius: 50%; animation: spin 0.8s linear infinite; }
.content a.cite {
  display: inline-flex; align-items: center; justify-content: center; min-width: 18px; height: 18px; padding: 0 4px; margin-left: 4px; vertical-align: 2px;
  border-radius: 5px; background: var(--acc-soft); color: var(--acc-ink); font: 500 10.5px/1 var(--mono); text-decoration: none;
}
.content a.cite + a.cite { margin-left: 3px; }
.content a.cite:hover { background: var(--acc); color: var(--acc-on); }
.sources { display: flex; flex-direction: column; gap: 10px; margin-top: 6px; }
.sources-label { font-size: 13px; font-weight: 500; color: var(--text-2); }
.sources ol { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.sources a {
  height: 100%; display: flex; flex-direction: column; gap: 7px; padding: 11px 12px 12px;
  border: 1px solid var(--border); border-radius: 12px; background: var(--surface); color: var(--text); text-decoration: none; min-width: 0;
}
.sources a:hover { border-color: var(--border-strong); }
.src-top { display: flex; align-items: center; gap: 7px; font-size: 12px; color: var(--muted); line-height: 1; }
.src-l { width: 16px; height: 16px; flex: none; border-radius: 4px; background: var(--surface-2); color: var(--text-2); display: grid; place-items: center; font-size: 9.5px; font-weight: 600; text-transform: uppercase; }
.src-site { flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.src-n { font: 500 10.5px var(--mono); color: var(--acc-ink); }
.src-title { font-size: 13px; font-weight: 500; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.search-note { align-self: flex-start; padding: 5px 10px; border-radius: 8px; background: var(--surface-2); color: var(--warn); font-size: 13px; }
@media (max-width: 1100px) { .sources ol { grid-template-columns: repeat(3, minmax(0, 1fr)); } }

/* ---------- Dialogs: yAI Code, projects, preview ---------- */
dialog::backdrop { background: var(--scrim); }
.code-dialog {
  width: min(560px, calc(100vw - 32px)); max-height: calc(100dvh - 48px); overflow-y: auto; padding: 22px 24px 24px;
  border: 1px solid var(--border); border-radius: 18px; background: var(--surface); color: var(--text);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.28);
}
.code-dialog > .code-head { height: auto; padding: 0; border: 0; background: none; font: inherit; color: inherit; justify-content: space-between; margin-bottom: 6px; }
.code-dialog h2 { font: 600 19px/1.3 var(--sans); letter-spacing: -0.02em; margin: 0; }
.code-dialog h3 { font-size: 12px; font-weight: 500; color: var(--muted); margin: 22px 0 8px; }
.code-dialog p { margin: 0 0 16px; font-size: 13.5px; line-height: 1.5; color: var(--text-2); }
.code-dialog a { color: var(--link); }
.code-steps { margin: 0; padding-left: 20px; display: grid; gap: 14px; font-size: 14px; line-height: 1.5; }
.code-tips { margin: 0; padding-left: 18px; display: grid; gap: 6px; font-size: 13.5px; line-height: 1.5; color: var(--text-2); }
.code-dialog :not(.code-line) > code { font-family: var(--mono); font-size: 0.86em; background: var(--surface-2); padding: 2px 5px; border-radius: 5px; }
.code-line {
  display: flex; align-items: center; gap: 8px; margin-top: 6px; padding: 6px 6px 6px 12px;
  background: var(--code-bg); border: 1px solid var(--border); border-radius: 10px;
}
.code-line code { flex: 1; min-width: 0; overflow-x: auto; white-space: nowrap; font-family: var(--mono); font-size: 13px; }
.code-copy { flex: none; padding: 4px 10px; border: 1px solid var(--border-strong); border-radius: 8px; background: var(--surface); color: var(--text-2); font-size: 12.5px; }
.code-copy:hover { color: var(--text); }
.code-dialog kbd { font-family: var(--mono); font-size: 0.82em; padding: 1px 6px; border: 1px solid var(--border-strong); border-bottom-width: 2px; border-radius: 5px; background: var(--surface-2); color: var(--text); }

/* The project dialog */
.proj-dialog { width: min(560px, calc(100vw - 32px)); padding: 0; overflow: hidden; display: none; flex-direction: column; max-height: calc(100dvh - 48px); }
.proj-dialog[open] { display: flex; }
.pd-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; padding: 22px 24px 4px; }
.pd-head h2 { margin: 0 0 4px; }
.pd-head p { margin: 0; }
.pd-head .icon-btn { margin: -4px -6px 0 0; width: 32px; height: 32px; }
.pd-body { padding: 18px 24px 22px; display: flex; flex-direction: column; gap: 18px; overflow-y: auto; }
.pfield { display: flex; flex-direction: column; gap: 7px; }
.pfield-label { display: flex; justify-content: space-between; align-items: baseline; font-size: 13px; font-weight: 500; }
.pfield-label small { font: 400 11.5px var(--mono); color: var(--muted); }
.pfield-label .sub { font: 400 12.5px var(--sans); color: var(--muted); }
.pfield input, .pfield textarea {
  width: 100%; padding: 10px 12px; border: 1px solid var(--border-strong); border-radius: 10px; background: var(--bg); color: var(--text);
  font: 14.5px/1.6 var(--sans); resize: vertical; outline: none;
}
.pfield input { height: 42px; background: var(--surface); }
.pfield input:focus, .pfield textarea:focus { border: 1px solid var(--acc); box-shadow: 0 0 0 4px var(--acc-soft); }
.pfield-help { font-size: 12.5px; color: var(--muted); }
.drop-zone {
  border: 1.5px dashed var(--border-strong); border-radius: 12px; padding: 14px; display: flex; align-items: center; justify-content: center; gap: 10px;
  color: var(--text-2); font-size: 13.5px; background: none; width: 100%;
}
.drop-zone b { color: var(--acc-ink); font-weight: 500; }
.drop-zone:hover, .drop-zone.over { border-color: var(--acc); background: color-mix(in srgb, var(--acc-soft) 50%, transparent); }
.proj-files { display: flex; flex-direction: column; border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.proj-files:empty { display: none; }
.pf-row { display: flex; align-items: center; gap: 10px; padding: 9px 8px 9px 12px; border-bottom: 1px solid var(--border); }
.pf-row:last-child { border-bottom: 0; }
.pf-ext { width: 28px; height: 28px; flex: none; border-radius: 7px; background: var(--surface-2); display: grid; place-items: center; font: 600 8.5px var(--mono); color: var(--text-2); }
.pf-name { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 3px; font-size: 13.5px; }
.pf-name span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pf-name em { font-style: normal; font-size: 12px; color: var(--bad); }
.pf-bar { height: 3px; border-radius: 2px; background: var(--surface-2); overflow: hidden; }
.pf-bar::after { content: ""; display: block; width: 40%; height: 100%; background: var(--acc); animation: waking 1.2s ease-in-out infinite; }
.pf-size { font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums; white-space: nowrap; }
.pf-x { width: 28px; height: 28px; border: 0; border-radius: 7px; background: none; color: var(--muted); display: grid; place-items: center; }
.pf-x:hover { background: var(--hover); color: var(--text); }
.pd-foot { display: flex; align-items: center; justify-content: flex-end; gap: 8px; padding: 14px 24px 20px; border-top: 1px solid var(--border); }
.pd-foot .btn-primary { width: auto; height: 40px; padding: 0 18px; }
.proj-delete { margin-right: auto; height: 40px; padding: 0 12px; border: 0; border-radius: 10px; background: none; color: var(--bad); font-weight: 500; }
.proj-delete:hover { background: color-mix(in srgb, var(--bad) 10%, transparent); }
.pd-error { color: var(--bad); font-size: 13px; padding: 0 24px 12px; min-height: 0; margin: -10px 0 0; }
.pd-error:empty { display: none; }

/* Projects in the sidebar and the chip in the composer */
.proj-list { display: flex; flex-direction: column; gap: 1px; }
.proj-open { display: flex; align-items: center; gap: 10px; }
.proj-open svg { flex: none; }
.proj-open .proj-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; }
.proj-open .proj-n { font-size: 12px; color: var(--muted); }
.proj-item .proj-edit { position: absolute; right: 2px; }
.proj-item:hover .proj-n { visibility: hidden; }
.proj-edit:hover { color: var(--text) !important; }
.proj-chip {
  align-self: flex-start; display: inline-flex; align-items: center; gap: 6px; max-width: 100%; height: 26px; padding: 0 4px 0 8px;
  border-radius: 7px; background: var(--surface-2); font-size: 12.5px; color: var(--text-2);
}
.proj-chip[hidden] { display: none; }
.proj-chip span { min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.proj-chip-x { flex: none; width: 20px; height: 20px; border: 0; border-radius: 5px; background: none; color: var(--muted); font-size: 15px; line-height: 1; }
.proj-chip-x:hover { background: var(--hover); color: var(--text); }

/* Live preview of web code */
.preview-dialog {
  width: min(1100px, calc(100vw - 24px)); height: min(820px, calc(100dvh - 24px)); max-width: none; max-height: none; padding: 0;
  border: 1px solid var(--border); border-radius: 18px; background: var(--surface); color: var(--text); overflow: hidden;
  display: none; flex-direction: column; box-shadow: 0 24px 80px rgba(0, 0, 0, 0.28);
}
.preview-dialog[open] { display: flex; }
.preview-head { display: flex; align-items: center; gap: 8px; height: 52px; padding: 0 10px 0 18px; border-bottom: 1px solid var(--border); font-size: 14px; }
.preview-head strong { font-weight: 600; }
.preview-note { font-size: 12.5px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
.preview-stage { flex: 1; min-height: 0; display: flex; justify-content: center; background: var(--surface-2); }
.preview-stage iframe { width: 100%; height: 100%; border: 0; background: #fff; }
.preview-dialog.phone .preview-stage { padding: 16px 0; }
.preview-dialog.phone iframe { width: 390px; max-width: 100%; border-radius: 24px; border: 1px solid var(--border-strong); }

/* ---------- Account ---------- */
.account { position: relative; }
.avatar {
  width: 32px; height: 32px; border-radius: 50%; border: 0; display: grid; place-items: center; flex: none;
  background: var(--ink); color: var(--on-ink); font-size: 12px; font-weight: 600; text-transform: uppercase;
}
.account-menu {
  position: absolute; right: 0; top: calc(100% + 8px); z-index: 30; min-width: 220px; padding: 5px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 14px; box-shadow: var(--shadow-menu);
}
.account-who { padding: 8px 10px 10px; font-size: 12.5px; color: var(--muted); border-bottom: 1px solid var(--border); margin-bottom: 4px; }
.account-who strong { color: var(--text); font-weight: 500; }
.menu-item { display: block; width: 100%; padding: 8px 10px; border: 0; border-radius: 8px; background: none; text-align: left; font-size: 14px; color: var(--text); }
.menu-item:hover { background: var(--hover); }
a.menu-item { text-decoration: none; }
.menu-danger { color: var(--bad); }
.menu-danger:hover { background: color-mix(in srgb, var(--bad) 10%, transparent); }

/* ---------- Phones ---------- */
@media (hover: none) { .suggestion:hover::after { transform: none; } }
@media (max-width: 900px) {
  .crumb { display: none; }
  .messages { padding: 16px 18px 12px; }
  .welcome { padding: 9vh 18px 16px; }
  .composer-wrap { padding: 0 10px calc(14px + env(safe-area-inset-bottom)); }
}
@media (max-width: 600px) {
  body { font-size: 16px; }
  .hide-sm { display: none; }
  .show-sm { display: inline; }
  .topbar { height: 52px; padding-left: 8px; padding-right: 12px; display: grid; grid-template-columns: 40px 1fr auto; position: relative; }
  .brand-wrap { display: contents; }
  .side-toggle { grid-column: 1; width: 40px; height: 40px; color: var(--text-2); }
  .model-picker { grid-column: 2; justify-self: center; }
  .model-menu { left: 50%; transform: translateX(-50%); }
  .status { position: absolute; opacity: 0; pointer-events: none; }
  .topbar-right { grid-column: 3; gap: 4px; }
  #newChat { display: none; }
  .avatar { width: 30px; height: 30px; font-size: 11px; }
  .user-stack { max-width: 84%; }
  .msg { margin-bottom: 22px; }
  .content { font-size: 15px; line-height: 1.65; }
  .att-img { width: 92px; height: 92px; }
  .chip { max-width: 200px; }
  .composer { border-radius: 22px; padding: 10px 8px 8px 12px; gap: 6px; }
  .composer textarea { font-size: 16px; max-height: 140px; }
  .composer-bar { gap: 4px; }
  #attach { width: 36px; height: 36px; }
  /* Image and Video become round icons on phones; Search keeps its label */
  #imageMode span, #videoMode span { display: none; }
  #imageMode, #videoMode { width: 36px; height: 36px; padding: 0; justify-content: center; border-color: transparent; border-radius: 50%; }
  #webMode { border-color: transparent; height: 36px; }
  .aspect-pick .ar-label { display: none; }
  .fineprint { display: none; }
  .sources ol { display: flex; overflow-x: auto; margin-right: -18px; padding-right: 18px; scrollbar-width: none; }
  .sources li { width: 190px; flex: none; }
  .gate-card h1 { font-size: 26px; }
  .gate-card input { font-size: 16px; }
  .gate.dialog { place-items: end center; padding: 0; }
  .gate.dialog .gate-card { max-width: none; border-radius: 24px 24px 0 0; padding-bottom: calc(24px + env(safe-area-inset-bottom)); }
  /* Dialogs are bottom sheets */
  .code-dialog, .proj-dialog { width: 100vw; max-width: 100vw; margin: auto 0 0; border-radius: 24px 24px 0 0; max-height: 92dvh; }
  .proj-dialog::before { content: ""; align-self: center; width: 36px; height: 4px; border-radius: 2px; background: var(--border-strong); margin-top: 8px; flex: none; }
  .pd-foot { padding-bottom: calc(20px + env(safe-area-inset-bottom)); }
  #previewWide, .preview-note { display: none; }
}
@media (max-width: 360px) { #webMode span { display: none; } #webMode { width: 36px; padding: 0; justify-content: center; } }

@media (max-width: 900px) { #newKey { display: none; } }
.logo-word .lw { display: inline-flex; }

/* Data analysis, deep research and memory (2026-10-20) */
.run-code {
  height: 30px; display: inline-flex; align-items: center; gap: 6px; padding: 0 10px; border: 0; border-radius: 8px;
  background: var(--acc-soft); color: var(--acc-ink); font: 500 12.5px var(--sans);
}
.run-code:hover { filter: brightness(0.97); }
.run-code:disabled { opacity: 0.55; }
.run-box { display: flex; flex-direction: column; gap: 10px; padding: 12px 14px; border: 1px solid var(--border); border-radius: 12px; background: var(--surface); }
.run-head { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--muted); }
.run-head .py { font: 500 11px var(--mono); color: var(--acc-ink); background: var(--acc-soft); padding: 2px 6px; border-radius: 5px; }
.run-head .bad { color: var(--bad); font-weight: 500; }
.run-head .spin { width: 12px; height: 12px; border: 2px solid var(--border-strong); border-top-color: var(--acc); border-radius: 50%; animation: spin 0.8s linear infinite; }
.run-out { margin: 0; max-height: 320px; overflow: auto; font: 400 12.5px/1.6 var(--mono); color: var(--text); white-space: pre; }
.run-out.err { color: var(--bad); white-space: pre-wrap; }
.run-fig { margin: 0; display: flex; flex-direction: column; align-items: flex-start; gap: 6px; }
.run-fig img { max-width: 100%; border-radius: 8px; border: 1px solid var(--border); background: #fff; }
.research-steps { display: flex; flex-direction: column; gap: 5px; padding: 10px 12px; border-left: 2px solid var(--acc-soft); font-size: 13px; color: var(--muted); }
.research-steps div { display: flex; align-items: center; gap: 8px; }
.research-steps div::before { content: ""; flex: none; width: 6px; height: 6px; border-radius: 50%; background: var(--border-strong); }
.research-steps .now { color: var(--text-2); }
.research-steps .now::before { width: 10px; height: 10px; background: none; border: 2px solid var(--border-strong); border-top-color: var(--acc); animation: spin 0.8s linear infinite; }
.research-steps .done::before { background: var(--acc); }
.remembered { display: flex; align-items: center; gap: 7px; font-size: 12.5px; color: var(--muted); }
.mem-toggle { display: flex; align-items: center; gap: 10px; font-size: 14px; }
.mem-toggle input { width: 16px; height: 16px; accent-color: var(--acc); }
.mem-toggle small { margin-left: auto; color: var(--muted); font-size: 12.5px; }
.mem-list { display: flex; flex-direction: column; gap: 6px; max-height: 320px; overflow-y: auto; }
.mem-item { display: flex; align-items: center; gap: 10px; padding: 8px 6px 8px 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); font-size: 14px; line-height: 1.4; }
.mem-item span { flex: 1; min-width: 0; }
.mem-empty { margin: 0; font-size: 13.5px; color: var(--muted); }
.mem-add { display: flex; gap: 8px; }
.mem-add input { flex: 1; min-width: 0; height: 40px; padding: 0 12px; border: 1px solid var(--border-strong); border-radius: 10px; background: var(--surface); color: var(--text); font: inherit; font-size: 14px; outline: none; }
.mem-add input:focus { border-color: var(--acc); }
.mem-add .btn-plain { height: 40px; padding: 0 16px; border: 1px solid var(--border-strong); border-radius: 10px; background: var(--surface); color: var(--text); font-weight: 500; }
.mem-add .btn-plain:hover { background: var(--hover); }

/* Live steps while connections run (2026-10-21) */
.tool-steps { display: flex; flex-direction: column; gap: 6px; }
.tool-step { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--muted); min-width: 0; }
.tool-step .ts-icon { flex: none; width: 14px; height: 14px; display: grid; place-items: center; font-size: 11px; font-weight: 700; }
.tool-step.running .ts-icon { border: 2px solid var(--border-strong); border-top-color: var(--acc); border-radius: 50%; animation: spin 0.8s linear infinite; }
.tool-step.done .ts-icon { color: var(--pos, #2e9e5b); }
.tool-step.failed .ts-icon { color: var(--bad, #d14b3c); }
.tool-step .ts-label { flex: none; font: 500 11px var(--mono, monospace); padding: 2px 7px; border-radius: 6px; background: var(--acc-soft); color: var(--acc-ink); }
.tool-step .ts-text { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tool-step.running .ts-text { color: var(--text); }

/* Hover citations (2026-10-21): the source card on a [n] */
.cite-tip { position: fixed; z-index: 120; padding: 12px 14px; border-radius: 14px; border: 1px solid var(--border-strong); background: var(--surface); color: var(--text); box-shadow: 0 14px 40px rgba(0,0,0,.18); font-size: 13px; line-height: 1.5; display: flex; flex-direction: column; gap: 6px; }
.cite-tip[hidden] { display: none; }
.cite-tip .ct-top { display: flex; align-items: center; gap: 7px; font-size: 12px; color: var(--muted); }
.cite-tip .ct-l { width: 18px; height: 18px; border-radius: 5px; display: grid; place-items: center; background: var(--surface-2); font-weight: 600; font-size: 11px; text-transform: uppercase; color: var(--text); }
.cite-tip .ct-site { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cite-tip .ct-n { font: 600 11px var(--mono); color: var(--acc-ink); background: var(--acc-soft); padding: 1px 6px; border-radius: 5px; }
.cite-tip .ct-title { font-weight: 600; color: var(--text); text-decoration: none; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.cite-tip .ct-title:hover { text-decoration: underline; }
.cite-tip .ct-quote { margin: 2px 0 0; padding: 6px 10px; border-left: 3px solid var(--acc); background: var(--surface-2); border-radius: 0 8px 8px 0; color: var(--text-2, var(--text)); font-size: 12.5px; }
.cite-tip .ct-quote.plain { border-left-color: var(--border-strong); color: var(--muted); }
.cite-tip mark { background: color-mix(in srgb, var(--acc) 22%, transparent); color: inherit; border-radius: 3px; padding: 0 1px; }