/* ============================================================
   Voice Agents, Speech-to-Speech + Workflow Builder showcase
   Interactive call simulator, live pipeline, workflow graph,
   capture panel and use-case cards. Vanilla, theme-aware.
   NOTE: template sets html { font-size: 62.5% } so 1rem = 10px.
   Reuses tokens (--accent, --t-bright, --base-tint, fonts) and
   the .ls-* feature / step / eyebrow components.
   ============================================================ */

.va {
  --va-radius: 24px;
  --va-screen: #0d0e11;          /* device screen, fixed dark in both themes */
  --va-screen-2: #15161b;
  --va-line: rgba(255, 255, 255, .08);
  --va-gap: clamp(1.6rem, 2vw, 2.8rem);
  position: relative;
  font-family: var(--_font-default);
}
.va * { box-sizing: border-box; }

/* =========================================================
   Scenario tabs
   ========================================================= */
.va-tabs {
  display: flex;
  gap: 0.8rem;
  overflow-x: auto;
  /* upward-lift only (overflow-x:auto clips vertically), so no downward glow */
  padding: 0.7rem 0.4rem 0.7rem;
  margin-bottom: var(--va-gap);
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.va-tabs::-webkit-scrollbar { display: none; }
.va-tab {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 2rem;
  border-radius: 1.6rem;
  border: 1px solid var(--st-muted);
  background: var(--base-tint);
  color: var(--t-bright);
  cursor: pointer;
  white-space: nowrap;
  font-family: var(--_font-accent);
  font-size: 1.6rem;
  font-weight: var(--fw-medium);
  line-height: 1;
  transition: border-color .25s, color .25s, background .3s cubic-bezier(.5,.05,.1,1),
              transform .35s cubic-bezier(.34,1.56,.64,1);
}
.va-tab i { font-size: 1.9rem; color: var(--accent); transition: color .25s; }
.va-tab__meta {
  font-size: 1.15rem; letter-spacing: .04em; text-transform: uppercase;
  opacity: .6; font-weight: var(--fw-medium);
}
.va-tab:hover {
  border-color: rgba(var(--accent-rgb), .55);
  background: rgba(var(--accent-rgb), .06);
  transform: translateY(-2px);
}
.va-tab:active { transform: translateY(0) scale(.97); }
.va-tab.is-active {
  border-color: transparent;
  background: var(--accent);
  color: #161616;
  box-shadow: inset 0 0.1rem 0 rgba(255,255,255,.35);
}
.va-tab.is-active:hover { background: var(--accent); }
.va-tab.is-active i { color: #161616; }
.va-tab.is-active .va-tab__meta { opacity: .6; }

/* =========================================================
   Stage, call device + live capture panel
   ========================================================= */
.va-stage {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(1.6rem, 2.4vw, 2.8rem);
  align-items: stretch;
}
.va[data-compact] .va-stage { grid-template-columns: minmax(0, 1fr); }
@media (max-width: 1100px) {
  .va-stage { grid-template-columns: minmax(0, 1fr); }
}

/* ---- Call device ---- */
.va-call {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 52rem;
  border-radius: var(--va-radius);
  overflow: hidden;
  background:
    radial-gradient(120% 80% at 50% -10%, rgba(var(--accent-rgb), .14), transparent 60%),
    linear-gradient(180deg, var(--va-screen-2), var(--va-screen));
  border: 1px solid var(--va-line);
  box-shadow: 0 3rem 8rem -4rem rgba(0,0,0,.8);
  isolation: isolate;
  color: #fff;
}

/* header, caller identity + live state + timer */
.va-call__head {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  padding: 1.8rem 2rem;
  border-bottom: 1px solid var(--va-line);
  background: rgba(255,255,255,.02);
}
.va-call__avatar {
  position: relative;
  flex: 0 0 auto;
  width: 4.8rem; height: 4.8rem;
  border-radius: 50%;
  display: grid; place-items: center;
  font-family: var(--_font-accent);
  font-weight: var(--fw-semibold);
  font-size: 1.8rem;
  color: #161616;
  background: linear-gradient(135deg, var(--accent), rgba(var(--accent-rgb), .55));
}
.va-call__id { display: flex; flex-direction: column; gap: 0.3rem; min-width: 0; }
.va-call__name {
  font-family: var(--_font-accent);
  font-size: 1.7rem; font-weight: var(--fw-medium); line-height: 1.1;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.va-call__sub { font-size: 1.25rem; color: rgba(255,255,255,.55); line-height: 1; }
.va-call__live {
  margin-left: auto;
  display: inline-flex; align-items: center; gap: 0.7rem;
  padding: 0.6rem 1.1rem;
  border-radius: 100px;
  font-size: 1.15rem; letter-spacing: .1em; text-transform: uppercase;
  font-weight: var(--fw-semibold);
  background: rgba(var(--accent-rgb), .14);
  border: 1px solid rgba(var(--accent-rgb), .35);
  color: #fff;
  white-space: nowrap;
}
.va-call__dot {
  width: 0.8rem; height: 0.8rem; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(var(--accent-rgb), .6);
}
.va-call.is-live .va-call__dot { animation: va-pulse 1.6s ease-out infinite; }
@keyframes va-pulse {
  0% { box-shadow: 0 0 0 0 rgba(var(--accent-rgb), .55); }
  70% { box-shadow: 0 0 0 1rem rgba(var(--accent-rgb), 0); }
  100% { box-shadow: 0 0 0 0 rgba(var(--accent-rgb), 0); }
}
.va-call__timer {
  font-variant-numeric: tabular-nums;
  font-size: 1.3rem; color: rgba(255,255,255,.6);
  margin-left: 1.2rem;
}

/* transcript thread */
.va-thread {
  flex: 1 1 auto;
  overflow-y: auto;
  padding: 2.2rem 2rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,.2) transparent;
  scroll-behavior: smooth;
}
.va-thread::-webkit-scrollbar { width: 6px; }
.va-thread::-webkit-scrollbar-thumb { background: rgba(255,255,255,.18); border-radius: 100px; }

.va-bubble {
  max-width: 84%;
  padding: 1.3rem 1.6rem;
  border-radius: 1.8rem;
  font-size: 1.55rem;
  line-height: 1.5;
  opacity: 0;
  transform: translateY(10px);
  animation: va-bubble-in .45s cubic-bezier(.22,1,.36,1) forwards;
}
@keyframes va-bubble-in { to { opacity: 1; transform: none; } }
.va-bubble__who {
  display: block;
  font-size: 1.15rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  font-weight: var(--fw-semibold);
  margin-bottom: 0.5rem;
  opacity: .7;
}
.va-bubble--caller {
  align-self: flex-start;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.08);
  border-bottom-left-radius: 0.5rem;
  color: rgba(255,255,255,.92);
}
.va-bubble--agent {
  align-self: flex-end;
  background: linear-gradient(135deg, rgba(var(--accent-rgb), .92), rgba(var(--accent-rgb), .72));
  color: #161616;
  border-bottom-right-radius: 0.5rem;
  font-weight: var(--fw-medium);
}
.va-bubble--agent .va-bubble__who { color: #161616; opacity: .55; }
.va-bubble__tag {
  display: inline-flex; align-items: center; gap: 0.5rem;
  margin-top: 0.9rem;
  padding: 0.4rem 0.9rem;
  border-radius: 100px;
  background: rgba(0,0,0,.18);
  font-size: 1.15rem; font-weight: var(--fw-semibold);
  letter-spacing: .02em;
}
.va-bubble--agent .va-bubble__tag i { color: #161616; }

/* typing indicator */
.va-typing {
  align-self: flex-start;
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 1.3rem 1.6rem;
  border-radius: 1.8rem;
  border-bottom-left-radius: 0.5rem;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.08);
}
.va-typing.va-typing--agent {
  align-self: flex-end;
  border-bottom-left-radius: 1.8rem;
  border-bottom-right-radius: 0.5rem;
  background: rgba(var(--accent-rgb), .16);
  border-color: rgba(var(--accent-rgb), .3);
}
.va-typing span {
  width: 0.8rem; height: 0.8rem; border-radius: 50%;
  background: rgba(255,255,255,.6);
  animation: va-typing 1s ease-in-out infinite;
}
.va-typing--agent span { background: var(--accent); }
.va-typing span:nth-child(2) { animation-delay: .15s; }
.va-typing span:nth-child(3) { animation-delay: .3s; }
@keyframes va-typing { 0%,60%,100%{transform:translateY(0);opacity:.5} 30%{transform:translateY(-5px);opacity:1} }

/* viz strip, waveform + pipeline */
.va-call__viz {
  padding: 1.2rem 2rem 0;
  border-top: 1px solid var(--va-line);
  background: rgba(0,0,0,.18);
}
.va-wave {
  display: flex; align-items: center; justify-content: center;
  gap: 0.4rem;
  height: 3.6rem;
}
.va-wave span {
  width: 0.4rem;
  height: 0.6rem;
  border-radius: 100px;
  background: rgba(255,255,255,.28);
  transition: background .3s;
}
.va-call.is-speaking .va-wave span {
  background: var(--accent);
  animation: va-wave 0.9s ease-in-out infinite;
}
.va-call.is-listening .va-wave span {
  background: rgba(255,255,255,.5);
  animation: va-wave 1.4s ease-in-out infinite;
}
@keyframes va-wave { 0%,100%{ transform: scaleY(.4) } 50%{ transform: scaleY(2.6) } }
.va-wave span:nth-child(odd)  { animation-delay: .12s; }
.va-wave span:nth-child(3n)   { animation-delay: .26s; }
.va-wave span:nth-child(4n)   { animation-delay: .38s; }
.va-wave span:nth-child(5n)   { animation-delay: .5s; }

.va-pipe {
  display: flex; align-items: center; gap: 0.6rem;
  padding: 1.2rem 0 1.6rem;
  flex-wrap: wrap;
}
.va-pipe__step {
  display: inline-flex; align-items: center; gap: 0.7rem;
  padding: 0.7rem 1.2rem;
  border-radius: 100px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.03);
  font-size: 1.25rem; font-weight: var(--fw-medium);
  color: rgba(255,255,255,.6);
  transition: color .25s, background .25s, border-color .25s, box-shadow .25s;
}
.va-pipe__step i { font-size: 1.5rem; }
.va-pipe__step.is-active {
  color: #161616;
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 0 0.4rem rgba(var(--accent-rgb), .18);
}
.va-pipe__arrow { color: rgba(255,255,255,.25); font-size: 1.3rem; }

/* controls */
.va-call__controls {
  display: flex; align-items: center; gap: 1rem;
  padding: 1.4rem 2rem;
  border-top: 1px solid var(--va-line);
}
.va-btn {
  display: inline-flex; align-items: center; gap: 0.8rem;
  height: 4.6rem; padding: 0 2rem;
  border-radius: 100px;
  border: none; cursor: pointer;
  font-family: var(--_font-accent);
  font-size: 1.5rem; font-weight: var(--fw-medium);
  line-height: 1;
  transition: transform .2s, box-shadow .2s, background .2s, color .2s, border-color .2s;
}
.va-btn--play {
  background: var(--accent); color: #161616;
}
.va-btn--play:hover { transform: translateY(-2px); box-shadow: 0 1rem 2.4rem -1rem rgba(var(--accent-rgb), .7); }
.va-btn--ghost {
  background: transparent;
  border: 1px solid rgba(255,255,255,.18);
  color: rgba(255,255,255,.85);
  width: 4.6rem; padding: 0; justify-content: center;
  font-size: 1.8rem;
}
.va-btn--ghost:hover { border-color: var(--accent); color: var(--accent); }
.va-btn--ghost.is-muted { color: rgba(255,255,255,.5); }

/* volume: mute toggle + slider, remembered across plays */
.va-vol {
  margin-left: auto;
  display: inline-flex; align-items: center; gap: 1rem;
}
.va-vol__slider {
  -webkit-appearance: none; appearance: none;
  width: 9rem; height: 0.5rem; margin: 0;
  border-radius: 100px; cursor: pointer;
  background: rgba(255,255,255,.16);
}
.va-vol__slider::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 1.6rem; height: 1.6rem; border-radius: 50%;
  background: var(--accent); border: none; cursor: pointer;
  box-shadow: 0 0 0 0.4rem rgba(var(--accent-rgb), .18);
}
.va-vol__slider::-moz-range-thumb {
  width: 1.6rem; height: 1.6rem; border-radius: 50%;
  background: var(--accent); border: none; cursor: pointer;
}
.va-vol__slider:focus-visible { outline: 2px solid var(--accent); outline-offset: 0.4rem; }
.va-vol__btn.is-muted ~ .va-vol__slider { opacity: .55; }
.va-call__hint {
  margin-left: auto;
  font-size: 1.2rem; color: rgba(255,255,255,.45);
  display: inline-flex; align-items: center; gap: 0.5rem;
}
.va-call__hint i { font-size: 1.4rem; }

/* =========================================================
   Live capture panel
   ========================================================= */
.va-results {
  display: flex;
  flex-direction: column;
  border-radius: var(--va-radius);
  border: 1px solid var(--st-muted);
  background: var(--base-tint);
  padding: 2.4rem;
  min-height: 52rem;
}
.va[data-compact] .va-results { min-height: 0; }
.va-results__eyebrow {
  display: inline-flex; align-items: center; gap: 0.8rem;
  font-family: var(--_font-accent);
  font-size: 1.25rem; letter-spacing: .14em; text-transform: uppercase;
  font-weight: var(--fw-semibold);
  color: var(--accent);
  margin-bottom: 0.6rem;
}
.va-results__eyebrow i { font-size: 1.6rem; }
.va-results__title {
  font-family: var(--_font-accent);
  font-size: 2.2rem; font-weight: var(--fw-medium);
  color: var(--t-bright); margin: 0 0 1.8rem; line-height: 1.15;
}
.va-results__list { display: flex; flex-direction: column; gap: 0.2rem; }
.va-field {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 1.2rem;
  padding: 1.3rem 0;
  border-bottom: 1px dashed var(--st-muted);
  opacity: .35;
  transition: opacity .4s ease;
}
.va-field.is-filled { opacity: 1; }
.va-field__k {
  font-size: 1.4rem; color: var(--t-muted);
  display: inline-flex; align-items: center; gap: 0.8rem;
}
.va-field__k i {
  font-size: 1.5rem;
  color: var(--st-bright);
  transition: color .3s;
}
.va-field.is-filled .va-field__k i { color: var(--accent); }
.va-field__v {
  font-family: var(--_font-accent);
  font-size: 1.6rem; font-weight: var(--fw-medium);
  color: var(--t-bright);
  text-align: right;
  position: relative;
}
.va-field__v::after {
  content: "·";
  color: var(--st-bright);
}
.va-field.is-filled .va-field__v::after { content: none; }
.va-field.is-filled .va-field__v .va-field__val { animation: va-bubble-in .4s ease forwards; }

/* outcome / webhook */
.va-results__foot { margin-top: auto; padding-top: 2rem; }
.va-outcome {
  display: flex; align-items: center; gap: 1.2rem;
  padding: 1.6rem 1.8rem;
  border-radius: 1.4rem;
  border: 1px solid var(--st-muted);
  background: var(--base-opp, transparent);
  opacity: 0; transform: translateY(8px);
  transition: opacity .45s, transform .45s, border-color .45s;
}
.va-outcome.is-done {
  opacity: 1; transform: none;
  border-color: rgba(var(--accent-rgb), .45);
  background: rgba(var(--accent-rgb), .08);
}
.va-outcome__icon {
  flex: 0 0 auto;
  width: 4rem; height: 4rem; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--accent); color: #161616;
  font-size: 2rem;
}
.va-outcome__txt b {
  display: block;
  font-family: var(--_font-accent);
  font-size: 1.6rem; font-weight: var(--fw-medium);
  color: var(--t-bright); line-height: 1.2;
}
.va-outcome__txt span { font-size: 1.3rem; color: var(--t-muted); }

/* =========================================================
   Workflow builder graph
   ========================================================= */
.va-flow {
  position: relative;
  border-radius: var(--va-radius);
  border: 1px solid var(--st-muted);
  background:
    radial-gradient(100% 100% at 0% 0%, rgba(var(--accent-rgb), .06), transparent 55%),
    var(--base-tint);
  overflow: hidden;
}
.va-flow__scroll { overflow-x: auto; scrollbar-width: thin; }
.va-flow__scroll::-webkit-scrollbar { height: 6px; }
.va-flow__scroll::-webkit-scrollbar-thumb { background: var(--st-bright); border-radius: 100px; }
.va-flow__canvas {
  position: relative;
  width: 100%;
  /* fixed aspect so node % positions hold */
  aspect-ratio: 16 / 10;
  min-height: 42rem;
  background-image:
    linear-gradient(rgba(var(--accent-rgb), .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(var(--accent-rgb), .05) 1px, transparent 1px);
  background-size: 3.2rem 3.2rem;
}
.va-flow__wires {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  overflow: visible;
}
.va-flow__wire {
  fill: none;
  stroke: var(--st-bright);
  stroke-width: 2;
  opacity: .5;
}
.va-flow__wire.is-lit {
  stroke: var(--accent);
  opacity: 1;
  stroke-dasharray: 8 10;
  animation: va-dash 1s linear infinite;
}
@keyframes va-dash { to { stroke-dashoffset: -18; } }

.va-node {
  position: absolute;
  transform: translate(-50%, -50%);
  width: clamp(13rem, 17vw, 18rem);
  padding: 1.4rem 1.5rem;
  border-radius: 1.4rem;
  border: 1.5px solid var(--st-bright);
  background: var(--base-tint);
  color: var(--t-bright);
  cursor: pointer;
  text-align: left;
  box-shadow: 0 1.2rem 2.6rem -1.8rem rgba(0,0,0,.55);
  transition: border-color .25s, transform .25s, box-shadow .25s, background .25s;
  z-index: 2;
}
.va-node:hover { transform: translate(-50%, -50%) translateY(-3px); border-color: var(--accent); }
.va-node.is-active {
  border-color: var(--accent);
  background: rgba(var(--accent-rgb), .1);
  box-shadow: 0 1.6rem 3.4rem -1.6rem rgba(var(--accent-rgb), .6);
}
.va-node__kind {
  display: flex; align-items: center; gap: 0.6rem;
  font-size: 1.1rem; letter-spacing: .1em; text-transform: uppercase;
  font-weight: var(--fw-semibold);
  color: var(--accent);
  margin-bottom: 0.6rem;
}
.va-node__kind i { font-size: 1.4rem; flex: 0 0 auto; }
.va-node__title {
  display: block;
  font-family: var(--_font-accent);
  font-size: 1.6rem; font-weight: var(--fw-medium);
  line-height: 1.2;
}
.va-node--start .va-node__kind,
.va-node--end .va-node__kind { color: var(--t-muted); }
.va-node--end { border-style: dashed; }

.va-flow__detail {
  position: relative;
  border-top: 1px solid var(--st-muted);
  padding: 2.2rem clamp(1.8rem, 3vw, 3rem);
  display: grid;
  grid-template-columns: minmax(0,1fr) minmax(0,1fr);
  gap: clamp(1.6rem, 3vw, 3rem);
}
@media (max-width: 700px) { .va-flow__detail { grid-template-columns: 1fr; } }
@media (max-width: 820px) { .va-flow__canvas { min-width: 64rem; } }
.va-flow__detail-label {
  font-size: 1.2rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--accent); font-weight: var(--fw-semibold);
  margin: 0 0 0.8rem; font-family: var(--_font-accent);
}
.va-flow__prompt {
  font-size: 1.55rem; line-height: 1.55; color: var(--t-bright); margin: 0;
}
.va-flow__prompt em { color: var(--accent); font-style: normal; font-weight: var(--fw-semibold); }
.va-flow__edges { display: flex; flex-direction: column; gap: 0.8rem; }
.va-edge {
  display: flex; align-items: center; gap: 1rem;
  font-size: 1.45rem; color: var(--t-muted);
}
.va-edge__cond {
  font-family: var(--_font-accent);
  color: var(--t-bright); font-weight: var(--fw-medium);
}
.va-edge i { color: var(--accent); font-size: 1.5rem; flex: 0 0 auto; }

/* =========================================================
   Pipeline ring diagram (how it works, real-time loop)
   ========================================================= */
.va-loop {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1.2rem;
  counter-reset: vl;
  margin-top: clamp(2.4rem, 4vw, 4rem);
}
.va-loop__step {
  position: relative;
  padding: 2.4rem 2rem;
  border-radius: 1.6rem;
  border: 1px solid var(--st-muted);
  background: var(--base-tint);
}
.va-loop__step i {
  font-size: 3rem; color: var(--accent); display: block; margin-bottom: 1.2rem;
}
.va-loop__step h4 {
  font-family: var(--_font-accent);
  font-size: 1.8rem; font-weight: var(--fw-medium);
  color: var(--t-bright); margin: 0 0 0.6rem; line-height: 1.15;
}
.va-loop__step p { font-size: 1.45rem; color: var(--t-muted); line-height: 1.5; margin: 0; }
.va-loop__step::after {
  content: "\203a";
  position: absolute; right: -0.95rem; top: 50%;
  transform: translateY(-50%);
  color: var(--accent); font-size: 2.2rem; font-weight: 700;
  z-index: 3;
}
.va-loop__step:last-child::after { content: none; }
@media (max-width: 600px) { .va-loop__step::after { content: none; } }

/* =========================================================
   Use-case cards
   ========================================================= */
.va-uses {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(26rem, 1fr));
  gap: 1.6rem;
}
.va-use {
  position: relative;
  overflow: hidden;
  padding: 2.6rem;
  border-radius: 2rem;
  border: 1px solid var(--st-muted);
  background: var(--base-tint);
  transition: transform .4s cubic-bezier(.22,1,.36,1), border-color .4s, box-shadow .4s;
}
.va-use:hover {
  transform: translateY(-4px);
  border-color: rgba(var(--accent-rgb), .35);
  box-shadow: 0 14px 30px -10px rgba(0,0,0,.5), 0 30px 64px -24px rgba(var(--accent-rgb), .22);
}
.va-use__icon {
  width: 5rem; height: 5rem; border-radius: 1.2rem;
  display: grid; place-items: center;
  background: rgba(var(--accent-rgb), .12);
  color: var(--accent); font-size: 2.4rem;
  margin-bottom: 1.6rem;
}
.va-use h3 {
  font-family: var(--_font-accent);
  font-size: 2rem; font-weight: var(--fw-medium);
  color: var(--t-bright); margin: 0 0 0.8rem; line-height: 1.15;
}
.va-use p { font-size: 1.5rem; line-height: 1.5; color: var(--t-muted); margin: 0 0 1.4rem; }
.va-use__meta {
  display: inline-flex; align-items: center; gap: 0.7rem;
  font-size: 1.3rem; font-weight: var(--fw-semibold);
  color: var(--accent);
  padding-top: 1.4rem;
  border-top: 1px solid var(--st-muted);
  width: 100%;
}
.va-use__meta i { font-size: 1.6rem; }

/* =========================================================
   Integrations / channels strip
   ========================================================= */
.va-chips { display: flex; flex-wrap: wrap; gap: 1rem; }
.va-chip {
  display: inline-flex; align-items: center; gap: 0.8rem;
  padding: 1rem 1.8rem;
  border-radius: 100px;
  border: 1px solid var(--st-muted);
  background: var(--base-tint);
  color: var(--t-bright);
  font-size: 1.45rem; font-weight: var(--fw-medium);
  transition: border-color .25s, transform .25s, background .25s;
}
.va-chip:hover { border-color: var(--accent); transform: translateY(-2px); background: rgba(var(--accent-rgb), .06); }
.va-chip i { color: var(--accent); font-size: 1.7rem; }

/* =========================================================
   Homepage teaser wrapper
   ========================================================= */
.va-teaser__head {
  display: flex; flex-direction: column; gap: 1.6rem;
  margin-bottom: clamp(2.4rem, 4vw, 4.4rem);
  max-width: 74rem;
}

/* =========================================================
   Proof stats band
   ========================================================= */
.va-stats {
  position: relative;
  overflow: hidden;
  border-radius: var(--va-radius);
  border: 1px solid var(--st-muted);
  padding: clamp(2.8rem, 4vw, 4.4rem);
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(var(--accent-rgb), .1), transparent 55%),
    radial-gradient(120% 140% at 0% 100%, rgba(var(--accent-rgb), .06), transparent 55%),
    var(--base-tint);
}
.va-stats__head {
  display: flex; flex-direction: column; gap: 1rem;
  max-width: 70rem; margin-bottom: clamp(2.8rem, 4vw, 4rem);
}
.va-stats__eyebrow {
  display: inline-flex; align-items: center; gap: 0.8rem;
  font-family: var(--_font-accent);
  font-size: 1.25rem; letter-spacing: .16em; text-transform: uppercase;
  font-weight: var(--fw-semibold); color: var(--accent);
}
.va-stats__eyebrow i { font-size: 1.7rem; }
.va-stats__lead { font-size: 1.6rem; line-height: 1.55; color: var(--t-muted); margin: 0; }
.va-stats__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
  gap: clamp(1.6rem, 2.4vw, 2.8rem);
}
.va-stat {
  position: relative;
  padding-left: 2.2rem;
  border-left: 2px solid rgba(var(--accent-rgb), .35);
}
.va-stat__num {
  display: flex; align-items: baseline; gap: 0.2rem;
  font-family: var(--_font-accent);
  font-weight: var(--fw-semibold);
  font-size: clamp(4.4rem, 6vw, 6.6rem);
  line-height: 0.9; letter-spacing: -0.02em;
  color: var(--t-bright);
  margin-bottom: 1.4rem;
}
.va-stat__num em {
  font-style: normal;
  font-size: 0.42em;
  font-weight: var(--fw-medium);
  color: var(--accent);
}
.va-stat__label {
  display: block;
  font-family: var(--_font-accent);
  font-size: 1.7rem; font-weight: var(--fw-medium);
  color: var(--t-bright); line-height: 1.2; margin-bottom: 0.5rem;
}
.va-stat__sub { display: block; font-size: 1.35rem; color: var(--t-muted); line-height: 1.45; }

/* =========================================================
   Comparison matrix
   ========================================================= */
.va-compare {
  border-radius: var(--va-radius);
  border: 1px solid var(--st-muted);
  background: var(--base-tint);
  overflow: hidden;
}
.va-compare__row {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1.1fr) minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
  border-bottom: 1px solid var(--st-muted);
}
.va-compare__row:last-child { border-bottom: none; }
.va-compare__row--head {
  background: rgba(var(--accent-rgb), .04);
  border-bottom: 1px solid var(--st-bright);
}
.va-compare__rowhead,
.va-compare__col {
  padding: 1.6rem 1.8rem;
  font-size: 1.45rem; line-height: 1.35;
}
.va-compare__rowhead {
  font-family: var(--_font-accent);
  font-weight: var(--fw-medium);
  color: var(--t-bright);
}
.va-compare__col {
  display: inline-flex; align-items: center; gap: 0.7rem;
  color: var(--t-muted);
  border-left: 1px solid var(--st-muted);
  height: 100%;
}
.va-compare__row--head .va-compare__col {
  font-family: var(--_font-accent);
  font-size: 1.5rem; font-weight: var(--fw-semibold);
  color: var(--t-bright);
  text-transform: none;
}
.va-compare__col[data-yes] { color: var(--t-bright); }
.va-compare__col[data-yes] i { color: var(--accent); font-size: 1.5rem; flex: 0 0 auto; }
.va-compare__col[data-no] { color: var(--t-muted); opacity: .8; }
/* hero column, the voice agent */
.va-compare__col--hero {
  position: relative;
  background: rgba(var(--accent-rgb), .07);
  color: var(--t-bright) !important;
  font-weight: var(--fw-medium);
  border-left: 1px solid rgba(var(--accent-rgb), .3);
}
.va-compare__row--head .va-compare__col--hero {
  background: var(--accent);
  color: #161616 !important;
}
.va-compare__row--head .va-compare__col--hero i { color: #161616; font-size: 1.6rem; }
.va-compare__col--hero i { color: var(--accent); font-size: 1.5rem; flex: 0 0 auto; }
@media (max-width: 820px) {
  /* keep the matrix intact, let it scroll horizontally */
  .va-compare { overflow-x: auto; scrollbar-width: thin; -webkit-overflow-scrolling: touch; }
  .va-compare__row { min-width: 62rem; }
  .va-compare__rowhead,
  .va-compare__col { padding: 1.4rem 1.4rem; font-size: 1.35rem; }
  .va-compare::-webkit-scrollbar { height: 6px; }
  .va-compare::-webkit-scrollbar-thumb { background: var(--st-bright); border-radius: 100px; }
}

/* =========================================================
   Trust, security & compliance
   ========================================================= */
.va-trust {
  border-radius: var(--va-radius);
  border: 1px solid var(--st-muted);
  background:
    radial-gradient(100% 120% at 0% 0%, rgba(var(--accent-rgb), .06), transparent 50%),
    var(--base-tint);
  padding: clamp(2.4rem, 3.5vw, 4rem);
}
.va-trust__badges {
  display: flex; flex-wrap: wrap; gap: 1rem;
  padding-bottom: clamp(2.4rem, 3.5vw, 3.6rem);
  margin-bottom: clamp(2.4rem, 3.5vw, 3.6rem);
  border-bottom: 1px solid var(--st-muted);
}
.va-trust__badge {
  display: inline-flex; align-items: center; gap: 0.8rem;
  padding: 1rem 1.8rem;
  border-radius: 100px;
  border: 1px solid rgba(var(--accent-rgb), .3);
  background: rgba(var(--accent-rgb), .06);
  color: var(--t-bright);
  font-family: var(--_font-accent);
  font-size: 1.5rem; font-weight: var(--fw-semibold);
  letter-spacing: .02em;
}
.va-trust__badge i { color: var(--accent); font-size: 1.8rem; }
.va-trust__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(24rem, 1fr));
  gap: clamp(1.8rem, 3vw, 3rem) clamp(2.4rem, 4vw, 4rem);
}
.va-trust__item i {
  font-size: 2.6rem; color: var(--accent); display: block; margin-bottom: 1rem;
}
.va-trust__item h4 {
  font-family: var(--_font-accent);
  font-size: 1.8rem; font-weight: var(--fw-medium);
  color: var(--t-bright); margin: 0 0 0.5rem; line-height: 1.2;
}
.va-trust__item p { font-size: 1.4rem; line-height: 1.5; color: var(--t-muted); margin: 0; }

/* deployment options */
.va-deploy { margin-top: clamp(2.4rem, 4vw, 4rem); }
.va-deploy__eyebrow {
  font-family: var(--_font-accent);
  font-size: 1.25rem; letter-spacing: .16em; text-transform: uppercase;
  font-weight: var(--fw-semibold); color: var(--accent);
  margin: 0 0 clamp(1.6rem, 2.5vw, 2.4rem);
}
.va-deploy__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(26rem, 1fr));
  gap: 1.6rem;
}
.va-deploy__card {
  position: relative;
  padding: 2.6rem;
  border-radius: 1.8rem;
  border: 1px solid var(--st-muted);
  background: var(--base-tint);
  transition: transform .35s cubic-bezier(.22,1,.36,1), border-color .35s, box-shadow .35s;
}
.va-deploy__card:hover {
  transform: translateY(-4px);
  border-color: rgba(var(--accent-rgb), .35);
  box-shadow: 0 14px 30px -10px rgba(0,0,0,.5), 0 30px 64px -24px rgba(var(--accent-rgb), .22);
}
.va-deploy__card--feature {
  border-color: rgba(var(--accent-rgb), .4);
  background:
    radial-gradient(120% 100% at 50% 0%, rgba(var(--accent-rgb), .1), transparent 60%),
    var(--base-tint);
}
.va-deploy__icon {
  width: 5rem; height: 5rem; border-radius: 1.2rem;
  display: grid; place-items: center;
  background: rgba(var(--accent-rgb), .12);
  color: var(--accent); font-size: 2.4rem;
  margin-bottom: 1.6rem;
}
.va-deploy__card h3 {
  font-family: var(--_font-accent);
  font-size: 2rem; font-weight: var(--fw-medium);
  color: var(--t-bright); margin: 0 0 0.8rem; line-height: 1.15;
}
.va-deploy__card p { font-size: 1.45rem; line-height: 1.5; color: var(--t-muted); margin: 0 0 1.6rem; }
.va-deploy__tag {
  display: inline-flex; align-items: center;
  font-size: 1.25rem; font-weight: var(--fw-semibold);
  letter-spacing: .04em;
  color: var(--accent);
  padding-top: 1.4rem;
  border-top: 1px solid var(--st-muted);
  width: 100%;
}

/* =========================================================
   FAQ accordion
   ========================================================= */
.va-faq {
  border-top: 1px solid var(--st-muted);
}
.va-faq__item { border-bottom: 1px solid var(--st-muted); }
.va-faq__q {
  display: flex; align-items: center; justify-content: space-between;
  gap: 2rem; width: 100%;
  padding: 2.4rem 0.4rem;
  background: transparent; border: none; cursor: pointer;
  text-align: left;
  font-family: var(--_font-accent);
  font-size: clamp(1.7rem, 2vw, 2.1rem);
  font-weight: var(--fw-medium);
  color: var(--t-bright);
  transition: color .25s;
}
.va-faq__q:hover { color: var(--accent); }
.va-faq__q i {
  flex: 0 0 auto;
  font-size: 2rem; color: var(--accent);
  transition: transform .35s cubic-bezier(.22,1,.36,1);
}
.va-faq__item.is-open .va-faq__q i { transform: rotate(45deg); }
.va-faq__a {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .4s cubic-bezier(.22,1,.36,1);
}
.va-faq__item.is-open .va-faq__a { grid-template-rows: 1fr; }
.va-faq__a > p {
  overflow: hidden;
  margin: 0;
  font-size: 1.55rem; line-height: 1.6; color: var(--t-muted);
  max-width: 80ch;
  padding-right: 4rem;
}
.va-faq__item.is-open .va-faq__a > p { padding-bottom: 2.4rem; }

/* =========================================================
   Closing CTA band
   ========================================================= */
.va-cta {
  position: relative;
  overflow: hidden;
  border-radius: var(--va-radius);
  border: 1px solid rgba(var(--accent-rgb), .3);
  padding: clamp(3.2rem, 6vw, 6.4rem) clamp(2.4rem, 5vw, 5.6rem);
  text-align: center;
  background:
    radial-gradient(120% 120% at 50% -20%, rgba(var(--accent-rgb), .16), transparent 60%),
    linear-gradient(180deg, var(--va-screen-2), var(--va-screen));
  color: #fff;
  isolation: isolate;
}
.va-cta__glow {
  position: absolute; inset: -40% 20% auto;
  height: 60%;
  background: radial-gradient(50% 50% at 50% 50%, rgba(var(--accent-rgb), .35), transparent 70%);
  filter: blur(40px);
  z-index: -1;
  animation: va-cta-glow 7s ease-in-out infinite;
}
@keyframes va-cta-glow {
  0%, 100% { opacity: .55; transform: translateY(0) scale(1); }
  50% { opacity: .9; transform: translateY(8%) scale(1.08); }
}
.va-cta__wave {
  position: absolute; inset: auto 0 0; bottom: 0;
  display: flex; align-items: flex-end; justify-content: center;
  gap: 0.5rem; height: 8rem;
  padding: 0 2rem; opacity: .5;
  z-index: -1;
  -webkit-mask-image: linear-gradient(180deg, transparent, #000);
  mask-image: linear-gradient(180deg, transparent, #000);
}
.va-cta__wave span {
  width: 0.5rem; border-radius: 100px;
  background: var(--accent);
  animation: va-cta-wave 1.5s ease-in-out infinite;
}
.va-cta__wave span:nth-child(odd)  { animation-delay: .2s; height: 40%; }
.va-cta__wave span:nth-child(3n)   { animation-delay: .45s; height: 70%; }
.va-cta__wave span:nth-child(4n)   { animation-delay: .7s; height: 30%; }
.va-cta__wave span:nth-child(5n)   { animation-delay: .15s; height: 85%; }
@keyframes va-cta-wave { 0%,100%{ transform: scaleY(.35) } 50%{ transform: scaleY(1) } }
.va-cta__eyebrow {
  display: inline-flex; align-items: center; gap: 0.8rem;
  font-family: var(--_font-accent);
  font-size: 1.25rem; letter-spacing: .16em; text-transform: uppercase;
  font-weight: var(--fw-semibold); color: var(--accent);
  margin-bottom: 1.8rem;
}
.va-cta__dot {
  width: 0.8rem; height: 0.8rem; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(var(--accent-rgb), .6);
  animation: va-pulse 1.8s ease-out infinite;
}
.va-cta__title {
  font-family: var(--_font-accent);
  font-weight: var(--fw-medium);
  font-size: clamp(2.8rem, 5vw, 5rem);
  line-height: 1.05; letter-spacing: -0.02em;
  color: #fff;
  max-width: 22ch; margin: 0 auto 1.8rem;
}
.va-cta__lead {
  font-size: clamp(1.5rem, 1.8vw, 1.8rem); line-height: 1.55;
  color: rgba(255,255,255,.72);
  max-width: 58ch; margin: 0 auto clamp(2.8rem, 4vw, 3.6rem);
}
.va-cta__actions {
  display: flex; flex-wrap: wrap; gap: 1.2rem; justify-content: center;
  margin-bottom: 2.8rem;
}
.va-cta .btn-outline {
  border-color: rgba(255,255,255,.25);
  color: #fff;
}
.va-cta__meta {
  display: inline-flex; flex-wrap: wrap; align-items: center; justify-content: center;
  gap: 0.4rem;
  font-size: 1.3rem; color: rgba(255,255,255,.55);
  margin: 0;
}
.va-cta__meta i { color: var(--accent); font-size: 1.5rem; margin-right: 0.3rem; }

/* =========================================================
   Reduced motion
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
  .va-call.is-speaking .va-wave span,
  .va-call.is-listening .va-wave span,
  .va-call.is-live .va-call__dot,
  .va-flow__wire.is-lit,
  .va-typing span,
  .va-cta__glow,
  .va-cta__wave span,
  .va-cta__dot { animation: none; }
  .va-bubble { animation: none; opacity: 1; transform: none; }
  .va-tab, .va-node, .va-use, .va-chip,
  .va-deploy__card, .va-faq__a, .va-faq__q i { transition: none; }
}