.topbar{
  position:sticky;top:0;z-index:5;
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 18px;
  backdrop-filter: blur(10px);
  background:rgba(10,10,13,.55);
  border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:10px}
.brand__icon{width:28px;height:28px}
.brand__name{font-weight:800;letter-spacing:.2px}
.brand__name span{color:var(--accent2);margin-left:2px}
.topbar__actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}

.hero{
  max-width:1100px;
  margin:0 auto;
  padding:34px 18px 26px;
  display:grid;
  grid-template-columns: 1.15fr .85fr;
  gap:22px;
  align-items:center;
}
.hero__left h1{
  font-size:42px;
  line-height:1.07;
  margin:0 0 14px;
}
.hero__left p{color:var(--muted);font-size:16px;line-height:1.55;max-width:520px}
.hero__cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}
.hero__chips{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.chip{
  padding:8px 10px;border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  font-size:13px;color:var(--muted);
}

.mock{
  position:relative;
  height:420px;
  border-radius:22px;
  border:1px solid rgba(255,255,255,.10);
  background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
  box-shadow:var(--shadow);
  overflow:hidden;
  display:grid;
  grid-template-columns: 44% 56%;
}
.mock__sidebar{
  border-right:1px solid rgba(255,255,255,.08);
  background:rgba(0,0,0,.18);
  padding:16px;
  display:flex;flex-direction:column;gap:10px;
}
.mock__row{
  height:44px;border-radius:14px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.07);
}
.mock__chat{padding:16px;display:flex;flex-direction:column;gap:10px}
.mock__top{height:46px;border-radius:14px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.07)}
.mock__bubble{height:46px;border-radius:18px;max-width:78%;border:1px solid rgba(255,255,255,.08)}
.mock__bubble--in{background:rgba(255,255,255,.04)}
.mock__bubble--out{background:linear-gradient(135deg, rgba(255,90,70,.25), rgba(255,140,90,.14));align-self:flex-end}
.mock__composer{margin-top:auto;height:54px;border-radius:16px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.07)}
.glow{
  position:absolute;right:6%;top:16%;
  width:180px;height:180px;border-radius:50%;
  background:radial-gradient(circle, rgba(255,90,70,.35), transparent 60%);
  filter: blur(1px);
  pointer-events:none;
}
.footer{
  max-width:1100px;margin:0 auto;
  padding:18px;
  display:flex;justify-content:space-between;align-items:center;
  color:var(--muted);border-top:1px solid var(--line);
}
.footer__links{display:flex;gap:12px}
.footer__links a{color:var(--muted)}
.footer__links a:hover{color:var(--text)}

@media (max-width: 900px){
  .hero{grid-template-columns:1fr;gap:16px}
  .hero__left h1{font-size:34px}
  .mock{height:360px}
}
@media (max-width: 520px){
  .hero__left h1{font-size:30px}
  .mock{height:320px}
  .topbar__actions{gap:8px}
}