/* ==========================================================================
   vAutoCars — AI car-finder chat widget
   Floating FAB → large centered dialog with backdrop (ChatGPT-style layout).
   Uses design-system.css tokens; no external fonts/icons.
   ========================================================================== */

.vac-chat-fab{
  position:fixed;
  right:20px;
  bottom:20px;
  z-index:9998;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:12px 18px 12px 16px;
  border-radius:999px;
  background:var(--green);
  color:#fff;
  font-weight:600;
  font-size:15px;
  box-shadow:0 10px 30px -10px rgba(23,92,255,.6), 0 2px 6px rgba(14,18,16,.18);
  transition:transform .15s ease, box-shadow .15s ease, background .15s ease;
  cursor:pointer;
}
.vac-chat-fab:hover{transform:translateY(-1px);background:var(--green-dk);box-shadow:0 14px 34px -10px rgba(23,92,255,.7)}
.vac-chat-fab[aria-expanded="true"]{display:none}
.vac-chat-fab-ico{
  width:22px;height:22px;flex:0 0 22px;display:grid;place-items:center;
  background:rgba(255,255,255,.18);border-radius:50%;font-size:13px;
}

/* ---- Backdrop ---- */
.vac-chat-backdrop{
  position:fixed;inset:0;
  background:rgba(14,18,16,.55);
  backdrop-filter:blur(4px);
  -webkit-backdrop-filter:blur(4px);
  z-index:9997;
  display:none;
  animation:vac-fade .18s ease-out;
}
.vac-chat-backdrop[data-open="true"]{display:block}
@keyframes vac-fade{from{opacity:0}to{opacity:1}}

/* ---- Panel (centered dialog) ---- */
.vac-chat-panel{
  position:fixed;
  left:50%;top:50%;transform:translate(-50%,-50%);
  width:min(94vw, 860px);
  height:min(88vh, 860px);
  background:var(--cream);
  border-radius:20px;
  box-shadow:0 30px 80px -20px rgba(14,18,16,.5), 0 2px 10px rgba(14,18,16,.15);
  display:none;
  flex-direction:column;
  overflow:hidden;
  z-index:9999;
  border:1px solid var(--line);
  animation:vac-pop .22s cubic-bezier(.2,.9,.3,1.3);
}
.vac-chat-panel[data-open="true"]{display:flex}
@keyframes vac-pop{
  from{opacity:0;transform:translate(-50%,-48%) scale(.97)}
  to  {opacity:1;transform:translate(-50%,-50%) scale(1)}
}

.vac-chat-header{
  display:flex;align-items:center;gap:14px;
  padding:18px 20px;
  background:linear-gradient(135deg, var(--green) 0%, var(--green-dk) 100%);
  color:#fff;
  flex-shrink:0;
}
.vac-chat-header h4{margin:0;font-size:17px;font-weight:700;letter-spacing:-.01em}
.vac-chat-header .vac-sub{font-size:13px;opacity:.88;margin-top:2px}
.vac-chat-close{
  margin-left:auto;width:34px;height:34px;border-radius:50%;
  background:rgba(255,255,255,.15);color:#fff;font-size:22px;line-height:1;
  display:grid;place-items:center;
  transition:background .1s;
}
.vac-chat-close:hover{background:rgba(255,255,255,.28)}

.vac-chat-body{
  flex:1;overflow-y:auto;padding:28px 24px;background:var(--cream-2);
}
.vac-chat-thread{
  display:flex;flex-direction:column;gap:18px;
  max-width:720px;margin:0 auto;
}

.vac-msg{
  padding:14px 18px;border-radius:18px;
  font-size:15.5px;line-height:1.55;white-space:pre-wrap;
}
.vac-msg.user{
  align-self:flex-end;
  background:var(--green);color:#fff;
  border-bottom-right-radius:6px;
  max-width:78%;
}
.vac-msg.assistant{
  align-self:stretch;
  background:var(--cream);color:var(--ink);
  border:1px solid var(--line);border-bottom-left-radius:6px;
}
.vac-msg.error{background:#fff4f4;color:#8a1f1f;border:1px solid #f3d2d2;max-width:78%}

.vac-typing{
  align-self:flex-start;display:inline-flex;gap:5px;padding:14px 18px;
  background:var(--cream);border:1px solid var(--line);border-radius:18px;
}
.vac-typing span{
  width:8px;height:8px;border-radius:50%;background:var(--ink-3);
  animation:vac-bounce 1.2s infinite ease-in-out;
}
.vac-typing span:nth-child(2){animation-delay:.15s}
.vac-typing span:nth-child(3){animation-delay:.3s}
@keyframes vac-bounce{
  0%,80%,100%{transform:scale(.6);opacity:.4}
  40%{transform:scale(1);opacity:1}
}

/* ---- Listing cards ---- */
.vac-cards{
  display:grid;
  grid-template-columns:repeat(auto-fill, minmax(320px, 1fr));
  gap:12px;margin-top:12px;
}
.vac-card{
  display:flex;gap:14px;padding:12px;background:var(--cream);
  border:1px solid var(--line);border-radius:14px;text-decoration:none;color:var(--ink);
  transition:transform .12s, border-color .12s, box-shadow .12s;
}
.vac-card:hover{border-color:var(--green);transform:translateY(-2px);box-shadow:var(--shadow-soft)}
.vac-card-img{
  width:120px;height:90px;border-radius:10px;object-fit:cover;background:var(--cream-2);
  flex:0 0 120px;
}
.vac-card-body{flex:1;min-width:0;display:flex;flex-direction:column;justify-content:center;gap:4px}
.vac-card-title{
  font-size:15px;font-weight:700;line-height:1.25;margin:0;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;letter-spacing:-.01em;
}
.vac-card-sub{
  font-size:13px;color:var(--ink-2);line-height:1.3;margin:0;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.vac-card-meta{
  font-size:12.5px;color:var(--ink-3);line-height:1.3;margin:0;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.vac-card-cta{
  margin-top:4px;font-size:12.5px;font-weight:600;color:var(--green);
}

/* ---- Suggestions (empty-state) ---- */
.vac-empty-wrap{
  max-width:720px;margin:0 auto;padding:32px 8px 0;text-align:center;
}
.vac-empty-mark{
  width:56px;height:56px;margin:0 auto 14px;
  display:grid;place-items:center;
  background:linear-gradient(135deg, var(--green) 0%, var(--green-dk) 100%);
  color:#fff;border-radius:50%;font-size:26px;
  box-shadow:0 10px 24px -8px rgba(23,92,255,.5);
}
.vac-empty-hi{
  font-size:22px;font-weight:700;color:var(--ink);margin:0 0 8px;
  letter-spacing:-.015em;
}
.vac-empty-sub{font-size:15px;color:var(--ink-2);margin:0 0 24px;line-height:1.5}

.vac-suggestions{
  display:grid;
  grid-template-columns:repeat(auto-fill, minmax(220px, 1fr));
  gap:10px;max-width:580px;margin:0 auto;
}
.vac-suggestion{
  font-size:14px;padding:14px 16px;border-radius:12px;text-align:left;
  background:var(--cream);border:1px solid var(--line-2);color:var(--ink);
  cursor:pointer;transition:background .1s, border-color .1s, transform .1s, box-shadow .1s;
  font-weight:500;line-height:1.3;
}
.vac-suggestion:hover{
  background:var(--green-soft);border-color:var(--green);color:var(--green);
  transform:translateY(-1px);box-shadow:var(--shadow-soft);
}

/* ---- Composer ---- */
.vac-chat-input-wrap{
  padding:14px 20px 10px;border-top:1px solid var(--line);
  background:var(--cream);flex-shrink:0;
}
.vac-chat-input{
  display:flex;gap:10px;max-width:720px;margin:0 auto;
  align-items:flex-end;
}
.vac-chat-input textarea{
  flex:1;resize:none;border:1px solid var(--line-2);border-radius:14px;
  padding:12px 16px;font:inherit;font-size:15px;line-height:1.45;
  max-height:160px;min-height:48px;background:var(--cream);color:var(--ink);
  transition:border-color .12s, box-shadow .12s;
}
.vac-chat-input textarea:focus{
  outline:none;border-color:var(--green);
  box-shadow:0 0 0 3px var(--green-soft);
}
.vac-chat-send{
  background:var(--green);color:#fff;border-radius:14px;
  padding:0 18px;height:48px;font-weight:600;font-size:14px;min-width:76px;
  transition:background .1s, transform .1s;
}
.vac-chat-send:hover:not(:disabled){background:var(--green-dk);transform:translateY(-1px)}
.vac-chat-send:disabled{opacity:.5;cursor:not-allowed}

.vac-chat-footer{
  padding:0 20px 12px;font-size:12px;color:var(--ink-3);
  background:var(--cream);text-align:center;max-width:720px;margin:0 auto;
}

/* ---- Tablet / Mobile ---- */
@media (max-width:720px){
  .vac-chat-panel{
    width:100vw;height:100vh;max-height:100vh;
    top:0;left:0;transform:none;
    border-radius:0;
    animation:vac-slide .22s cubic-bezier(.2,.9,.3,1.3);
  }
  @keyframes vac-slide{
    from{opacity:0;transform:translateY(12px)}
    to  {opacity:1;transform:translateY(0)}
  }
  .vac-chat-backdrop{display:none !important}
  .vac-chat-body{padding:20px 16px}
  .vac-chat-input-wrap{padding:12px 16px 8px}
  .vac-msg{font-size:15px;padding:12px 16px}
  .vac-cards{grid-template-columns:1fr}
  .vac-empty-wrap{padding:20px 4px 0}
  .vac-empty-hi{font-size:20px}
  .vac-empty-sub{font-size:14px;margin-bottom:20px}
  .vac-suggestions{grid-template-columns:1fr}
  .vac-chat-fab{right:12px;bottom:12px;padding:10px 14px}
}

/* Prevent page scroll when chat is open */
body.vac-chat-open{overflow:hidden}