/* =====================================================================
   VISU AI — destination page + conversation/artifact view.
   Ported from the design prototype; every selector is scoped under
   `.visu-home` so it inherits the marketing design tokens defined in
   home.css (--bg-*, --accent*, --line*, --text*, --d-*, --f-*, --r-*).
   Only `--bad` and `--topbar-h` are missing there, defined on the root.
   ===================================================================== */

.visu-home.visu-ai-root {
  --bad: #F87171;      /* == home.css --d-red; used by error pills/dots */
  --topbar-h: 64px;    /* == global --header-height; convo view height */
}

/* Keyframes (global — not scoped) */
@keyframes va-spark-pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: .82; transform: scale(0.94) rotate(-4deg); } }
@keyframes va-pulse { 0%, 100% { opacity: 1; } 50% { opacity: .4; } }
@keyframes vac-fade { from { opacity: 0; } to { opacity: 1; } }
@keyframes vac-slide { from { transform: translateX(40px); opacity: .4; } to { transform: none; opacity: 1; } }
@keyframes vac-inrise { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
@keyframes vac-shim { from { background-position: 200% 0; } to { background-position: -200% 0; } }
@keyframes vac-row { from { opacity: 0; transform: translateX(-6px); } to { opacity: 1; transform: none; } }
@keyframes vac-sp { to { transform: rotate(360deg); } }
@keyframes vac-grow { from { transform: scaleX(0); } to { transform: scaleX(1); } }

/* ---- Page scroll surface with a soft accent aurora at the top ---- */
.visu-home .va-scroll {
  min-height: calc(100vh - var(--topbar-h));
  background:
    radial-gradient(1100px 460px at 78% -220px, var(--accent-soft), transparent 66%),
    radial-gradient(900px 420px at 12% -160px, rgba(34,211,238,0.06), transparent 70%),
    var(--bg-0);
}
.visu-home .va-wrap { max-width: 1120px; margin: 0 auto; padding: 34px 32px 80px; }

/* ====================================================================
   Header
   ==================================================================== */
.visu-home .va-hero { display: flex; align-items: flex-start; gap: 24px; }
.visu-home .va-hero-l { min-width: 0; flex: 1; }
.visu-home .va-title {
  display: flex; align-items: center; gap: 15px;
  font-family: var(--f-display); font-weight: 800;
  font-size: 40px; line-height: 1; letter-spacing: -0.015em;
  color: var(--text); margin: 0;
}
.visu-home .va-spark {
  width: 40px; height: 40px; flex: none;
  display: grid; place-items: center;
  color: var(--accent);
  filter: drop-shadow(0 0 14px rgba(91,141,255,0.55));
  animation: va-spark-pulse 3.4s ease-in-out infinite;
}
.visu-home .va-sub {
  color: var(--text-dim); font-size: 14.5px; line-height: 1.5;
  max-width: 58ch; margin: 16px 0 0;
}
.visu-home .va-sub em { color: var(--text); font-style: normal; font-weight: 600; }

.visu-home .va-cta {
  display: inline-flex; align-items: center; gap: 9px; flex: none;
  height: 42px; padding: 0 20px;
  border: none; border-radius: var(--r-md); cursor: pointer;
  background: var(--accent); color: #05121f;
  font-family: var(--f-ui); font-weight: 700; font-size: 13.5px;
  box-shadow: var(--accent-glow);
  transition: transform .12s, filter .14s;
}
.visu-home .va-cta:hover { filter: brightness(1.08); transform: translateY(-1px); }
.visu-home .va-cta:active { transform: translateY(0); }

/* ---- Stat strip ---- */
.visu-home .va-stats {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 230px)); gap: 12px;
  margin-top: 30px;
}
.visu-home .va-stat {
  position: relative;
  padding: 15px 16px 14px;
  background: linear-gradient(160deg, var(--bg-3), var(--bg-2));
  border: 1px solid var(--line-strong); border-radius: var(--r-lg);
  overflow: hidden;
}
.visu-home .va-stat::after {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent 60%);
  opacity: .5;
}
.visu-home .va-stat .lbl {
  font-family: var(--f-mono); font-size: 10.5px; letter-spacing: .1em;
  text-transform: uppercase; color: var(--text-mute);
}
.visu-home .va-stat .v {
  font-family: var(--f-display); font-weight: 800; font-size: 30px;
  line-height: 1.05; color: var(--text); margin-top: 8px;
}
.visu-home .va-stat .v small { font-size: 15px; color: var(--text-mute); font-weight: 600; }
.visu-home .va-stat .d { margin-top: 5px; font-size: 11px; color: var(--text-dim); }
.visu-home .va-stat .d.up { color: var(--ok); }

/* ====================================================================
   Ask bar
   ==================================================================== */
.visu-home .va-ask { margin-top: 26px; }
.visu-home .va-ask-field {
  display: flex; align-items: center; gap: 12px;
  padding: 6px 6px 6px 16px;
  background: var(--bg-3);
  border: 1px solid var(--line-strong); border-radius: var(--r-lg);
  transition: border-color .15s, box-shadow .15s;
}
.visu-home .va-ask-field:focus-within { border-color: var(--accent); box-shadow: var(--accent-glow); }
.visu-home .va-ask-field .spark { color: var(--accent); flex: none; }
.visu-home .va-ask-input {
  flex: 1; min-width: 0;
  background: none; border: none; outline: none;
  color: var(--text); font-family: var(--f-ui); font-size: 14.5px; padding: 12px 0;
}
.visu-home .va-ask-input::placeholder { color: var(--text-mute); }
.visu-home .va-ask-send {
  flex: none;
  width: 38px; height: 38px; border-radius: var(--r-md);
  display: grid; place-items: center; cursor: pointer;
  background: var(--accent); color: #05121f; border: none;
  transition: filter .14s, transform .1s;
}
.visu-home .va-ask-send:hover { filter: brightness(1.1); }
.visu-home .va-ask-send:active { transform: scale(0.94); }

.visu-home .va-prompts { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.visu-home .va-prompt {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 12px;
  background: var(--bg-2); border: 1px solid var(--line-strong);
  border-radius: var(--r-pill); cursor: pointer;
  font-family: var(--f-ui); font-size: 12.5px; color: var(--text-dim);
  transition: border-color .14s, color .14s, background .14s;
}
.visu-home .va-prompt:hover { border-color: var(--accent); color: var(--text); background: var(--bg-3); }
.visu-home .va-prompt svg { color: var(--text-mute); flex: none; }
.visu-home .va-prompt:hover svg { color: var(--accent); }

/* ====================================================================
   Content columns
   ==================================================================== */
.visu-home .va-cols {
  display: grid; grid-template-columns: 1fr 320px; gap: 26px;
  margin-top: 40px; align-items: start;
}
@media (max-width: 940px) {
  .visu-home .va-cols { grid-template-columns: 1fr; }
  .visu-home .va-stats { grid-template-columns: repeat(2, 1fr); }
}

/* ---- Section header + segmented filter ---- */
.visu-home .va-sec-head { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.visu-home .va-sec-title {
  font-family: var(--f-display); font-weight: 700; font-size: 15px;
  letter-spacing: .01em; color: var(--text);
}
.visu-home .va-seg {
  margin-left: auto; display: inline-flex; gap: 2px;
  padding: 3px; background: var(--bg-2);
  border: 1px solid var(--line-strong); border-radius: var(--r-pill);
}
.visu-home .va-seg button {
  border: none; background: none; cursor: pointer;
  padding: 5px 13px; border-radius: var(--r-pill);
  font-family: var(--f-ui); font-size: 12px; font-weight: 600;
  color: var(--text-mute); transition: color .14s, background .14s;
}
.visu-home .va-seg button:hover { color: var(--text-dim); }
.visu-home .va-seg button.on { color: var(--accent-bright); background: var(--accent-soft); }

/* ---- Run cards ---- */
.visu-home .va-card {
  border: 1px solid var(--line-strong); border-radius: var(--r-lg);
  background: linear-gradient(180deg, var(--bg-2), var(--bg-1));
  margin-bottom: 14px; overflow: hidden;
  transition: border-color .16s;
}
.visu-home .va-card:hover { border-color: var(--line-bright); }
.visu-home .va-card-h {
  display: flex; align-items: center; gap: 12px;
  padding: 13px 16px; border-bottom: 1px solid var(--line);
}
.visu-home .va-card-ic {
  width: 30px; height: 30px; border-radius: var(--r-sm); flex: none;
  display: grid; place-items: center;
  background: var(--accent-soft); color: var(--accent-bright);
}
.visu-home .va-card-t { font-weight: 650; font-size: 13.5px; color: var(--text); }
.visu-home .va-card-sub { font-family: var(--f-mono); font-size: 11px; color: var(--text-mute); margin-top: 2px; }
.visu-home .va-card-meta { margin-left: auto; text-align: right; }
.visu-home .va-card-date { font-family: var(--f-mono); font-size: 11px; color: var(--text-mute); }

/* rollup pills */
.visu-home .va-rollup { display: inline-flex; gap: 5px; margin-bottom: 4px; justify-content: flex-end; flex-wrap: wrap; }
.visu-home .va-pill {
  font-family: var(--f-mono); font-size: 10px; letter-spacing: .02em;
  padding: 2px 7px; border-radius: var(--r-pill);
  border: 1px solid transparent;
}
.visu-home .va-pill.ok  { color: var(--ok);   background: rgba(52,211,153,0.12);  border-color: rgba(52,211,153,0.25); }
.visu-home .va-pill.err { color: var(--bad);  background: rgba(248,113,113,0.12); border-color: rgba(248,113,113,0.25); }
.visu-home .va-pill.skip{ color: var(--text-mute); background: rgba(255,255,255,0.04); border-color: var(--line-strong); }
.visu-home .va-pill.run { color: var(--accent-bright); background: var(--accent-soft); border-color: rgba(91,141,255,0.3); }

/* progress bar */
.visu-home .va-prog { height: 3px; background: var(--bg-4); position: relative; overflow: hidden; }
.visu-home .va-prog > i { position: absolute; inset: 0 auto 0 0; display: block; }
.visu-home .va-prog > i.ok  { background: linear-gradient(90deg, var(--ok), #6ee7b7); }

/* step rows */
.visu-home .va-steps { padding: 8px 16px 12px; display: flex; flex-direction: column; }
.visu-home .va-step {
  display: flex; align-items: center; gap: 10px;
  padding: 7px 0; font-size: 12.5px;
  border-bottom: 1px solid var(--line);
}
.visu-home .va-step:last-child { border-bottom: none; }
.visu-home .va-step-name { flex: 1; color: var(--text-dim); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.visu-home .va-step.done .va-step-name { color: var(--text); }
.visu-home .va-step-st { font-family: var(--f-mono); font-size: 10.5px; color: var(--text-mute); text-transform: uppercase; letter-spacing: .06em; }
.visu-home .va-dl {
  display: inline-flex; align-items: center; gap: 5px;
  font-family: var(--f-mono); font-size: 11px; color: var(--accent-bright);
  text-decoration: none; padding: 3px 8px; border-radius: var(--r-sm);
  border: 1px solid transparent;
}
.visu-home .va-dl:hover { background: var(--accent-soft); border-color: rgba(91,141,255,0.3); }

/* status dot */
.visu-home .va-dot { width: 9px; height: 9px; border-radius: 50%; flex: none; box-sizing: border-box; }
.visu-home .va-dot.ok   { background: var(--ok);  box-shadow: 0 0 6px rgba(52,211,153,0.6); }
.visu-home .va-dot.err  { background: var(--bad); box-shadow: 0 0 6px rgba(248,113,113,0.5); }
.visu-home .va-dot.skip { background: transparent; border: 1.5px solid var(--text-faint); }
.visu-home .va-dot.run  { background: var(--accent); box-shadow: 0 0 7px rgba(91,141,255,0.7); animation: va-pulse 1.4s infinite; }

/* ---- Action feed ---- */
.visu-home .va-feed { display: flex; flex-direction: column; gap: 8px; }
.visu-home .va-action {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 14px;
  border: 1px solid var(--line-strong); border-radius: var(--r-md);
  background: var(--bg-2);
  transition: border-color .14s, background .14s;
}
.visu-home .va-action:hover { border-color: var(--line-bright); background: var(--bg-3); }
.visu-home .va-action-ic {
  width: 30px; height: 30px; border-radius: var(--r-sm); flex: none;
  display: grid; place-items: center;
  background: var(--bg-4); color: var(--text-dim);
}
.visu-home .va-action-ic.accent { background: var(--accent-soft); color: var(--accent-bright); }
.visu-home .va-action-ic.cyan   { background: rgba(34,211,238,0.12); color: var(--d-cyan); }
.visu-home .va-action-ic.violet { background: rgba(167,139,250,0.14); color: var(--d-violet); }
.visu-home .va-action-ic.amber  { background: rgba(251,191,36,0.13); color: var(--d-amber); }
.visu-home .va-action-body { min-width: 0; flex: 1; }
.visu-home .va-action-t { font-size: 13px; color: var(--text); }
.visu-home .va-action-t b { font-weight: 600; }
.visu-home .va-action-t .proj { color: var(--accent-bright); }
.visu-home .va-action-sub { font-size: 11.5px; color: var(--text-mute); margin-top: 1px; }
.visu-home .va-action-date { font-family: var(--f-mono); font-size: 10.5px; color: var(--text-mute); flex: none; }
.visu-home .va-action-open {
  flex: none; font-size: 11.5px; color: var(--text-dim); text-decoration: none;
  padding: 4px 10px; border: 1px solid var(--line-strong); border-radius: var(--r-pill);
  transition: color .14s, border-color .14s;
}
.visu-home .va-action-open:hover { color: var(--accent-bright); border-color: rgba(91,141,255,0.35); }

/* ====================================================================
   Right rail
   ==================================================================== */
.visu-home .va-rail { display: flex; flex-direction: column; gap: 16px; position: sticky; top: 20px; }
.visu-home .va-panel {
  border: 1px solid var(--line-strong); border-radius: var(--r-lg);
  background: var(--bg-2); padding: 16px;
}
.visu-home .va-panel-h { display: flex; align-items: center; gap: 8px; margin-bottom: 14px; }
.visu-home .va-panel-t { font-family: var(--f-display); font-weight: 700; font-size: 13px; color: var(--text); }
.visu-home .va-panel-meta { margin-left: auto; font-family: var(--f-mono); font-size: 10.5px; color: var(--text-mute); }

/* week bar chart */
.visu-home .va-chart { display: flex; align-items: flex-end; gap: 7px; height: 92px; }
.visu-home .va-bar { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 6px; height: 100%; justify-content: flex-end; }
.visu-home .va-bar > i {
  display: block; width: 100%; border-radius: 3px 3px 2px 2px;
  background: linear-gradient(180deg, var(--accent-bright), rgba(91,141,255,0.28));
  min-height: 3px; transition: filter .14s;
}
.visu-home .va-bar.peak > i { background: linear-gradient(180deg, var(--d-cyan), rgba(34,211,238,0.3)); }
.visu-home .va-bar:hover > i { filter: brightness(1.2); }
.visu-home .va-bar span { font-family: var(--f-mono); font-size: 9.5px; color: var(--text-faint); }
.visu-home .va-chart-foot {
  display: flex; justify-content: space-between; margin-top: 12px;
  font-family: var(--f-mono); font-size: 10.5px; color: var(--text-mute);
}
.visu-home .va-chart-foot b { color: var(--text); font-weight: 600; }

/* jump back in */
.visu-home .va-jump { display: flex; flex-direction: column; gap: 4px; }
.visu-home .va-jrow {
  display: flex; align-items: center; gap: 11px; padding: 9px 8px;
  border-radius: var(--r-sm); cursor: pointer; text-decoration: none;
  transition: background .14s;
}
.visu-home .va-jrow:hover { background: var(--bg-3); }
.visu-home .va-jthumb {
  width: 34px; height: 34px; border-radius: var(--r-sm); flex: none;
  display: grid; place-items: center; background-size: cover; background-position: center;
  font-family: var(--f-mono); font-size: 10px; font-weight: 600; color: #05121f;
}
.visu-home .va-jbody { min-width: 0; flex: 1; }
.visu-home .va-jname { font-size: 12.5px; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.visu-home .va-jmeta { font-family: var(--f-mono); font-size: 10px; color: var(--text-mute); margin-top: 1px; }
.visu-home .va-jrow .go { color: var(--text-faint); flex: none; }
.visu-home .va-jrow:hover .go { color: var(--accent); }

/* grounded note */
.visu-home .va-note {
  border: 1px solid var(--line-strong); border-radius: var(--r-lg);
  background: linear-gradient(160deg, rgba(91,141,255,0.07), var(--bg-2));
  padding: 15px 16px;
}
.visu-home .va-note-h {
  display: flex; align-items: center; gap: 8px; margin-bottom: 8px;
  font-family: var(--f-display); font-weight: 700; font-size: 12.5px; color: var(--text);
}
.visu-home .va-note-h .spark { color: var(--accent); }
.visu-home .va-note p { margin: 0; font-size: 12px; line-height: 1.55; color: var(--text-dim); }
.visu-home .va-note p + p { margin-top: 7px; }
.visu-home .va-note b { color: var(--text); font-weight: 600; }

/* empty state for the activity feed */
.visu-home .va-empty { color: var(--text-mute); padding: 26px 4px; font-size: 13px; }
.visu-home .va-loading { color: var(--text-mute); padding: 40px 4px; font-size: 13px; }
.visu-home .va-block + .va-block { margin-top: 30px; }

/* ====================================================================
   Conversation view (inline, full-height)
   ==================================================================== */
.visu-home .va-convo-full {
  height: calc(100vh - var(--topbar-h));
  display: flex; flex-direction: column;
  padding: 12px 16px 16px;
  overflow: hidden;
  background: var(--bg-0);
}
.visu-home .va-convo-bar { display: flex; align-items: center; gap: 14px; margin: 2px 4px 12px; }
.visu-home .va-back {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 7px 14px 7px 11px; cursor: pointer;
  background: var(--bg-2); border: 1px solid var(--line-strong); border-radius: var(--r-pill);
  color: var(--text-dim); font-family: var(--f-ui); font-size: 13px; font-weight: 500;
  transition: color .14s, border-color .14s;
}
.visu-home .va-back:hover { color: var(--text); border-color: var(--line-bright); }
.visu-home .va-back svg { color: var(--text-mute); }
.visu-home .va-back:hover svg { color: var(--accent-bright); }
.visu-home .va-convo-label { font-family: var(--f-mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--text-mute); }
.visu-home .va-new {
  margin-left: auto;
  display: inline-flex; align-items: center; gap: 7px;
  padding: 7px 15px; cursor: pointer;
  background: var(--accent-soft); border: 1px solid rgba(91,141,255,0.3); border-radius: var(--r-pill);
  color: var(--accent-bright); font-family: var(--f-ui); font-size: 13px; font-weight: 600;
  transition: background .14s;
}
.visu-home .va-new:hover { background: rgba(91,141,255,0.16); }
.visu-home .va-convo-mount { flex: 1; min-height: 0; }

/* right-docked workspace: chat | artifact (inline variant only) */
.visu-home .vac-dock { display: flex; background: var(--bg-1); }
.visu-home .vac-dock--inline {
  width: 100%; height: 100%; min-height: 0;
  border: 1px solid var(--line-strong);
  border-radius: 16px; overflow: hidden;
  box-shadow: 0 24px 70px rgba(0,0,0,0.4);
  animation: vac-inrise .3s cubic-bezier(.2,.8,.3,1);
}

/* ===== LEFT chat ===== */
.visu-home .vac-chat {
  width: min(440px, 42%); flex: none;
  display: flex; flex-direction: column;
  border-right: 1px solid var(--line-strong);
  background: linear-gradient(180deg, var(--bg-2), var(--bg-1));
}
.visu-home .vac-chat-head {
  display: flex; align-items: center; gap: 11px;
  padding: 14px 16px; flex: none;
  border-bottom: 1px solid var(--line-strong);
  background: rgba(7,9,15,0.4);
}
.visu-home .vac-ava {
  width: 30px; height: 30px; border-radius: 9px; flex: none;
  display: grid; place-items: center;
  background: var(--accent-soft); color: var(--accent-bright);
}
.visu-home .vac-ava.head { box-shadow: 0 0 14px rgba(91,141,255,0.35); }
.visu-home .vac-head-t {
  display: flex; align-items: center; gap: 10px; flex: 1;
  font-family: var(--f-display); font-weight: 700; font-size: 14px; color: var(--text);
}
.visu-home .vac-close {
  flex: none;
  width: 32px; height: 32px; border-radius: var(--r-sm);
  display: grid; place-items: center; cursor: pointer;
  background: none; border: none; color: var(--text-mute);
  transition: background .14s, color .14s;
}
.visu-home .vac-close:hover { background: var(--bg-4); color: var(--text); }

.visu-home .vac-chat-body { flex: 1; overflow-y: auto; padding: 20px 18px 8px; }
.visu-home .vac-chat-body::-webkit-scrollbar { width: 8px; }
.visu-home .vac-chat-body::-webkit-scrollbar-thumb { background: var(--bg-5); border-radius: 4px; }
.visu-home .vac-chat-body::-webkit-scrollbar-track { background: transparent; }

/* ===== RIGHT artifact ===== */
.visu-home .vac-art { flex: 1; min-width: 0; display: flex; flex-direction: column; background: var(--bg-0); }
.visu-home .vac-art-head {
  display: flex; align-items: center; gap: 14px;
  padding: 13px 16px 13px 22px; flex: none;
  border-bottom: 1px solid var(--line-strong);
  background: linear-gradient(180deg, rgba(15,22,47,0.5), transparent);
}
.visu-home .vac-art-titlewrap { min-width: 0; flex: 1; }
.visu-home .vac-art-title { font-family: var(--f-display); font-weight: 700; font-size: 15px; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.visu-home .vac-art-chip { font-family: var(--f-mono); font-size: 11px; color: var(--text-mute); margin-top: 2px; }
.visu-home .vac-art-foot { display: flex; flex-wrap: wrap; gap: 8px; flex: none; padding: 12px 22px; border-top: 1px solid var(--line-strong); background: rgba(7,9,15,0.4); }
.visu-home .vac-art-body { flex: 1; overflow-y: auto; padding: 26px 26px 30px; }
.visu-home .vac-art-body::-webkit-scrollbar { width: 9px; }
.visu-home .vac-art-body::-webkit-scrollbar-thumb { background: var(--bg-5); border-radius: 4px; }
.visu-home .vac-art-src {
  display: inline-flex; align-items: center; gap: 7px; margin-top: 22px;
  font-family: var(--f-mono); font-size: 11px; color: var(--text-mute);
}
.visu-home .vac-art-src svg { color: var(--accent); }
.visu-home .vac-art-note { margin-top: 14px; font-size: 11.5px; color: var(--text-mute); font-style: italic; }

/* empty + skeleton */
.visu-home .vac-art-empty { height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; color: var(--text-mute); }
.visu-home .vac-art-empty .ic { width: 60px; height: 60px; border-radius: 18px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); margin-bottom: 18px; }
.visu-home .vac-art-empty .t { font-family: var(--f-display); font-weight: 700; font-size: 17px; color: var(--text-dim); }
.visu-home .vac-art-empty .s { font-size: 13px; max-width: 34ch; margin-top: 8px; }
.visu-home .vac-art-skel { padding-top: 6px; }
.visu-home .vac-skel-h { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--text-dim); margin-bottom: 22px; }
.visu-home .vac-skel-row, .visu-home .vac-skel-block { border-radius: 8px; background: linear-gradient(90deg, var(--bg-2), var(--bg-4), var(--bg-2)); background-size: 200% 100%; animation: vac-shim 1.3s linear infinite; }
.visu-home .vac-skel-row { height: 14px; margin-bottom: 12px; }
.visu-home .vac-skel-block { height: 160px; margin: 20px 0; }

/* image artifact (heatmap) */
.visu-home .vac-image { max-width: 720px; }
.visu-home .vac-image img { width: 100%; border-radius: var(--r-md); border: 1px solid var(--line-strong); display: block; }

/* chart artifact */
.visu-home .vac-chart-art { max-width: 640px; }
.visu-home .vac-badges { display: flex; gap: 10px; margin-top: 20px; flex-wrap: wrap; }
.visu-home .vac-badge { flex: 1; min-width: 110px; padding: 12px 14px; background: var(--bg-2); border: 1px solid var(--line-strong); border-radius: var(--r-md); }
.visu-home .vac-badge .k { display: block; font-family: var(--f-mono); font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--text-mute); }
.visu-home .vac-badge .v { display: block; font-family: var(--f-display); font-weight: 800; font-size: 24px; color: var(--text); margin-top: 5px; }

/* report artifact */
.visu-home .vac-report { display: flex; gap: 22px; align-items: flex-start; }
.visu-home .vac-page {
  width: 300px; flex: none; aspect-ratio: 1 / 1.414;
  background: #f6f8fc; color: #1b2233; border-radius: 8px;
  box-shadow: 0 18px 50px rgba(0,0,0,0.45); padding: 22px 22px; overflow: hidden;
  display: flex; flex-direction: column;
}
.visu-home .vac-page-top { display: flex; align-items: center; justify-content: space-between; padding-bottom: 12px; border-bottom: 1px solid #dbe1ec; }
.visu-home .vac-page-brand { display: inline-flex; align-items: center; gap: 6px; font-family: var(--f-display); font-weight: 800; font-size: 13px; color: #1b2233; }
.visu-home .vac-page-brand b { font-weight: 800; color: #5B8DFF; }
.visu-home .vac-page-brand .d { width: 12px; height: 12px; border-radius: 50%; background: #5B8DFF; }
.visu-home .vac-page-tag { font-family: var(--f-mono); font-size: 8.5px; text-transform: uppercase; letter-spacing: .1em; color: #8a93a6; }
.visu-home .vac-page-title { font-family: var(--f-display); font-weight: 800; font-size: 16px; margin-top: 16px; line-height: 1.2; }
.visu-home .vac-page-sub { font-family: var(--f-mono); font-size: 9px; color: #8a93a6; margin-top: 5px; }
.visu-home .vac-page-bars { display: flex; align-items: flex-end; gap: 7px; height: 92px; margin: 18px 0; }
.visu-home .vac-page-bars i { flex: 1; background: linear-gradient(180deg, #5B8DFF, #a9c2ff); border-radius: 3px 3px 0 0; }
.visu-home .vac-page-tbl { border-top: 1px solid #dbe1ec; }
.visu-home .vac-page-tr { display: flex; justify-content: space-between; padding: 7px 0; border-bottom: 1px solid #eef1f7; font-size: 11px; }
.visu-home .vac-page-tr span { color: #5a6478; }
.visu-home .vac-page-tr b { font-family: var(--f-mono); font-weight: 700; }
.visu-home .vac-page-foot { margin-top: auto; padding-top: 12px; font-family: var(--f-mono); font-size: 8.5px; color: #a4acbc; }
.visu-home .vac-report-files { flex: 1; min-width: 0; }
.visu-home .vac-report-flabel { font-family: var(--f-mono); font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--text-mute); margin-bottom: 10px; }
.visu-home .vac-report-files .vac-file.on { border-color: var(--accent); background: var(--accent-soft); }

/* search artifact */
.visu-home .vac-search { max-width: 620px; }
.visu-home .vac-search-field { display: flex; align-items: center; gap: 10px; padding: 12px 15px; background: var(--bg-2); border: 1px solid var(--line-strong); border-radius: var(--r-md); color: var(--text-mute); }
.visu-home .vac-search-field .ph { font-size: 13.5px; }
.visu-home .vac-search-chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0 20px; }
.visu-home .vac-swatch { display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px 6px 8px; background: var(--bg-2); border: 1px solid var(--line-strong); border-radius: var(--r-pill); cursor: pointer; font-family: var(--f-ui); font-size: 12px; color: var(--text-dim); transition: border-color .14s, color .14s; }
.visu-home .vac-swatch span { width: 14px; height: 14px; border-radius: 50%; border: 1px solid rgba(255,255,255,0.15); }
.visu-home .vac-swatch.on { border-color: var(--accent); color: var(--text); background: var(--accent-soft); }
.visu-home .vac-track-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 12px; }
.visu-home .vac-track { border: 1px solid var(--line-strong); border-radius: var(--r-md); overflow: hidden; background: var(--bg-2); transition: opacity .18s, border-color .14s; }
.visu-home .vac-track.dim { opacity: .32; }
.visu-home .vac-track-thumb { height: 74px; display: grid; place-items: center; }
.visu-home .vac-track-box { width: 46px; height: 26px; border-radius: 4px; background: rgba(0,0,0,0.3); box-shadow: inset 0 0 0 2px rgba(255,255,255,0.5); }
.visu-home .vac-track-tags { padding: 9px 11px; }
.visu-home .vac-track-tags b { display: block; font-size: 12px; color: var(--text); text-transform: capitalize; font-weight: 600; }
.visu-home .vac-track-tags span { font-family: var(--f-mono); font-size: 10.5px; color: var(--text-mute); }

/* comparison / rank viz */
.visu-home .vac-cmp {
  margin: 14px 0; padding: 14px 15px;
  background: var(--bg-1); border: 1px solid var(--line-strong); border-radius: var(--r-lg);
}
.visu-home .vac-cmp.big { margin: 0; padding: 18px 20px; }
.visu-home .vac-cmp-row {
  display: grid; grid-template-columns: 130px 1fr auto; align-items: center; gap: 12px;
  margin-bottom: 13px;
}
.visu-home .vac-cmp-lbl { font-family: var(--f-mono); font-size: 11.5px; color: var(--text-dim); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.visu-home .vac-cmp-track { height: 30px; background: var(--bg-4); border-radius: 5px; overflow: hidden; }
.visu-home .vac-cmp-track > i {
  display: block; height: 100%; border-radius: 5px;
  background: linear-gradient(90deg, rgba(91,141,255,0.5), var(--accent));
  transform-origin: left; animation: vac-grow .7s cubic-bezier(.2,.7,.3,1) both;
}
.visu-home .vac-cmp-track > i.hi { background: linear-gradient(90deg, var(--d-cyan), #67e8f9); }
.visu-home .vac-cmp-val { font-family: var(--f-mono); font-size: 15px; font-weight: 600; color: var(--text); }
.visu-home .vac-cmp-unit { font-family: var(--f-mono); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; color: var(--text-faint); text-align: right; }

/* ===== chat turns ===== */
.visu-home .vac-x + .vac-x { margin-top: 26px; padding-top: 22px; border-top: 1px solid var(--line); }
.visu-home .vac-user { display: flex; justify-content: flex-end; margin-bottom: 16px; }
.visu-home .vac-user-b {
  max-width: 82%;
  padding: 11px 15px;
  background: var(--accent); color: #05121f;
  border-radius: 15px 15px 4px 15px;
  font-size: 13.5px; font-weight: 500; line-height: 1.45;
  box-shadow: var(--accent-glow);
}
.visu-home .vac-asst { display: flex; gap: 12px; }
.visu-home .vac-asst-c { min-width: 0; flex: 1; }

/* step trace */
.visu-home .vac-trace { border: 1px solid var(--line-strong); border-radius: var(--r-md); background: var(--bg-2); overflow: hidden; }
.visu-home .vac-trace-h {
  display: flex; align-items: center; gap: 9px; width: 100%;
  padding: 10px 13px; cursor: pointer;
  background: none; border: none; color: var(--text);
  font-family: var(--f-ui); font-size: 12.5px; text-align: left;
}
.visu-home .vac-trace-t { font-weight: 600; }
.visu-home .vac-trace-dur { font-family: var(--f-mono); font-size: 11px; color: var(--text-mute); }
.visu-home .vac-trace-ck { width: 18px; height: 18px; border-radius: 50%; flex: none; display: grid; place-items: center; background: rgba(52,211,153,0.16); color: var(--ok); }
.visu-home .vac-trace-cv { margin-left: auto; color: var(--text-mute); transition: transform .18s; }
.visu-home .vac-trace-cv.on { transform: rotate(180deg); }
.visu-home .vac-trace-rows { padding: 2px 13px 10px; }
.visu-home .vac-trow { display: flex; align-items: center; gap: 10px; padding: 6px 0; font-size: 12px; animation: vac-row .28s ease; }
.visu-home .vac-trow-ic { width: 18px; flex: none; display: grid; place-items: center; color: var(--text-mute); }
.visu-home .vac-trow.ok .vac-trow-ic { color: var(--accent); }
.visu-home .vac-trow.err .vac-trow-ic { color: var(--bad); }
.visu-home .vac-trow-n { font-family: var(--f-mono); color: var(--text-dim); }
.visu-home .vac-trow.run .vac-trow-n { color: var(--text); }
.visu-home .vac-trow-r { margin-left: auto; font-family: var(--f-mono); font-size: 11px; color: var(--text-mute); }

/* spinner */
.visu-home .vac-spin { width: 15px; height: 15px; flex: none; border-radius: 50%; border: 2px solid var(--line-bright); border-top-color: var(--accent); animation: vac-sp .7s linear infinite; }
.visu-home .vac-spin.sm { width: 13px; height: 13px; border-width: 1.6px; }

/* answer */
.visu-home .vac-answer { margin-top: 14px; animation: vac-fade .3s ease; }
.visu-home .vac-answer > p { margin: 0 0 10px; font-size: 13.5px; line-height: 1.6; color: var(--text-dim); }
.visu-home .vac-answer > p b { color: var(--text); font-weight: 650; }

/* welcome */
.visu-home .vac-welcome { text-align: center; padding: 40px 12px 20px; }
.visu-home .vac-welcome-sp { width: 56px; height: 56px; margin: 0 auto 18px; border-radius: 16px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); box-shadow: 0 0 24px rgba(91,141,255,0.3); }
.visu-home .vac-welcome-t { font-family: var(--f-display); font-weight: 800; font-size: 22px; color: var(--text); }
.visu-home .vac-welcome-s { font-size: 13.5px; color: var(--text-dim); margin: 8px 0 26px; }
.visu-home .vac-welcome-g { display: flex; flex-direction: column; gap: 8px; max-width: 420px; margin: 0 auto; }
.visu-home .vac-sug {
  display: flex; align-items: center; gap: 10px; text-align: left;
  padding: 11px 14px; cursor: pointer;
  background: var(--bg-2); border: 1px solid var(--line-strong); border-radius: var(--r-md);
  color: var(--text-dim); font-family: var(--f-ui); font-size: 13px;
  transition: border-color .14s, color .14s, background .14s;
}
.visu-home .vac-sug:hover { border-color: var(--accent); color: var(--text); background: var(--bg-3); }
.visu-home .vac-sug svg { color: var(--accent); flex: none; }

/* action buttons in artifact footer */
.visu-home .vac-act {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 8px 13px; cursor: pointer;
  background: var(--bg-3); border: 1px solid var(--line-strong); border-radius: var(--r-md);
  color: var(--text-dim); font-family: var(--f-ui); font-size: 12.5px; font-weight: 500;
  transition: border-color .14s, color .14s, background .14s; text-decoration: none;
}
.visu-home .vac-act:hover { border-color: var(--line-bright); color: var(--text); background: var(--bg-4); }
.visu-home .vac-act svg { color: var(--text-mute); }
.visu-home .vac-act:hover svg { color: var(--accent-bright); }
.visu-home .vac-act.primary { background: var(--accent); color: #05121f; border-color: transparent; font-weight: 700; box-shadow: var(--accent-glow); }
.visu-home .vac-act.primary svg { color: #05121f; }
.visu-home .vac-act.primary:hover { filter: brightness(1.08); color: #05121f; }

/* files list */
.visu-home .vac-files { margin: 14px 0; display: flex; flex-direction: column; gap: 7px; }
.visu-home .vac-file { display: flex; align-items: center; gap: 11px; padding: 9px 12px; background: var(--bg-1); border: 1px solid var(--line-strong); border-radius: var(--r-md); }
.visu-home .vac-file-ic { color: var(--d-cyan); flex: none; }
.visu-home .vac-file-n { flex: 1; font-size: 12.5px; color: var(--text-dim); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* footer input */
.visu-home .vac-foot { flex: none; padding: 12px 16px 14px; border-top: 1px solid var(--line-strong); background: rgba(7,9,15,0.5); }
.visu-home .vac-foot-field {
  display: flex; align-items: center; gap: 8px; padding: 5px 5px 5px 15px;
  background: var(--bg-3); border: 1px solid var(--line-strong); border-radius: var(--r-md);
  transition: border-color .15s, box-shadow .15s;
}
.visu-home .vac-foot-field:focus-within { border-color: var(--accent); box-shadow: var(--accent-glow); }
.visu-home .vac-foot-input { flex: 1; min-width: 0; background: none; border: none; outline: none; color: var(--text); font-family: var(--f-ui); font-size: 13.5px; padding: 9px 0; }
.visu-home .vac-foot-input::placeholder { color: var(--text-mute); }
.visu-home .vac-foot-send { flex: none; width: 34px; height: 34px; border-radius: var(--r-sm); display: grid; place-items: center; cursor: pointer; background: var(--accent); color: #05121f; border: none; transition: filter .14s, transform .1s; }
.visu-home .vac-foot-send:hover { filter: brightness(1.1); }
.visu-home .vac-foot-send:active { transform: scale(0.94); }

/* reuse the global ai-* card styles (workspace.css) for confirm/ask inside the chat */
.visu-home .vac-cards { margin-top: 12px; display: flex; flex-direction: column; gap: 8px; }

@media (max-width: 900px) {
  .visu-home .vac-dock { flex-direction: column; }
  .visu-home .vac-chat { width: 100%; flex: none; max-height: 46%; border-right: none; border-bottom: 1px solid var(--line-strong); }
  .visu-home .vac-report { flex-direction: column; }
  .visu-home .vac-page { width: 100%; max-width: 300px; }
  .visu-home .vac-cmp-row { grid-template-columns: 90px 1fr auto; }
}