:root{
  --bg0:#0b0c0f;
  --bg1:#101217;
  --card:#141720cc;
  --line:#262a35;
  --text:#e9e7df;
  --muted:#b9b5a7;
  --accent:#e8e1cf;
  --shadow: 0 20px 60px rgba(0,0,0,.45);
  --radius: 18px;
  --radius2: 26px;
  --maxw: 1100px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color:var(--text);
  background: radial-gradient(1200px 700px at 30% 15%, rgba(232,225,207,.12), transparent 55%),
              radial-gradient(900px 600px at 85% 20%, rgba(232,225,207,.10), transparent 60%),
              linear-gradient(180deg, var(--bg0), var(--bg1));
  overflow-x:hidden;
}

.bg-glow{
  position:fixed; inset:-40px;
  background: radial-gradient(700px 500px at 20% 25%, rgba(232,225,207,.12), transparent 65%),
              radial-gradient(600px 400px at 80% 35%, rgba(232,225,207,.10), transparent 70%);
  filter: blur(18px);
  pointer-events:none;
  opacity:.7;
}

.topbar{
  max-width: var(--maxw);
  margin: 22px auto 0;
  padding: 0 18px;
  display:flex;
  align-items:center;
  justify-content:space-between;
}

.brand-logo{
  height:44px;
  width:auto;
  display:block;
  filter: drop-shadow(0 10px 28px rgba(0,0,0,.45));
}

.pill{
  font-size:12px;
  letter-spacing:.08em;
  text-transform:uppercase;
  padding:10px 12px;
  border-radius:999px;
  border:1px solid rgba(232,225,207,.18);
  color:var(--muted);
  background: rgba(20,23,32,.35);
  backdrop-filter: blur(8px);
}

.shell{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 26px 18px 0;
}

.hero{
  display:grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 26px;
  align-items: start;
  margin-top: 16px;
}

.title{
  font-size: 34px;
  line-height: 1.15;
  margin: 12px 0 10px;
  letter-spacing: -0.02em;
}

.subtitle{
  margin: 0 0 18px;
  color: var(--muted);
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.6;
}

.chat{
  border:1px solid rgba(232,225,207,.14);
  border-radius: var(--radius2);
  background: rgba(20,23,32,.55);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
  overflow:hidden;
}

.chat-head{
  display:flex;
  align-items:center;
  gap:8px;
  padding: 12px 14px;
  border-bottom:1px solid rgba(232,225,207,.10);
}
.dot{
  width:10px; height:10px;
  border-radius:50%;
  background: rgba(232,225,207,.20);
}
.chat-title{
  margin-left: 8px;
  font-size: 13px;
  color: var(--muted);
}

.chat-body{
  padding: 18px 16px 10px;
  min-height: 160px;
}

.bubble{
  max-width: 70ch;
  border-radius: 16px;
  padding: 12px 14px;
  position: relative;
  border: 1px solid rgba(232,225,207,.12);
}
.bubble-bot{
  background: rgba(16,18,23,.62);
}

.typing{
  font-size: 15px;
  line-height: 1.55;
  color: var(--text);
  white-space: pre-wrap;
}

.cursor{
  display:inline-block;
  width: 10px;
  height: 16px;
  margin-left: 2px;
  background: rgba(232,225,207,.65);
  border-radius: 3px;
  transform: translateY(2px);
  animation: blink 1s step-end infinite;
}
@keyframes blink{
  50%{opacity:0}
}

.chat-foot{
  display:flex;
  justify-content:flex-end;
  padding: 12px 14px 14px;
  border-top:1px solid rgba(232,225,207,.10);
}

.btn{
  appearance:none;
  border:1px solid rgba(232,225,207,.18);
  background: rgba(232,225,207,.10);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: transform .12s ease, background .12s ease, border-color .12s ease;
}
.btn:hover{
  transform: translateY(-1px);
  background: rgba(232,225,207,.14);
  border-color: rgba(232,225,207,.24);
}
.btn:active{ transform: translateY(0px) scale(.99); }

.hero-right{
  display:flex;
  justify-content:flex-end;
}

.avatar-card{
  width: 100%;
  max-width: 360px;
  border: 1px solid rgba(232,225,207,.14);
  border-radius: var(--radius2);
  background: rgba(20,23,32,.55);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
  padding: 18px;
}

.avatar-ring{
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 22px;
  border: 1px solid rgba(232,225,207,.18);
  padding: 10px;
  background: radial-gradient(500px 320px at 40% 30%, rgba(232,225,207,.12), transparent 60%),
              rgba(16,18,23,.55);
}

.avatar{
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 16px;
  display:block;
  filter: contrast(1.03) saturate(1.02);
}

.avatar-meta{
  margin-top: 14px;
  display:flex;
  flex-direction:column;
  gap:4px;
}

.avatar-name{
  font-size: 18px;
  font-weight: 600;
}
.avatar-role{
  font-size: 13px;
  color: var(--muted);
}

.footer{
  margin-top: 34px;
  padding: 26px 18px 34px;
  border-top: 1px solid rgba(232,225,207,.10);
}
.footer-inner{
  max-width: var(--maxw);
  margin: 0 auto;
  display:flex;
  align-items:center;
  justify-content:center;
  gap: 12px;
  color: var(--muted);
}
.footer-text{
  font-size: 12px;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.footer-logo{
  height: 22px;
  width:auto;
  opacity:.92;
}

@media (max-width: 920px){
  .hero{ grid-template-columns: 1fr; }
  .hero-right{ justify-content:flex-start; }
  .title{ font-size: 30px; }
  .brand-logo{ height: 40px; }
}