:root{
  --bg:#041019;
  --panel:#0a1822;
  --panel2:#0c1f2c;
  --line:rgba(116,255,190,.16);
  --text:#eef8ff;
  --muted:#a9c0cf;
  --mint:#74ffbe;
  --cyan:#84eaff;
  --violet:#c8a5ff;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  min-height:100vh;
  font-family:Inter,system-ui,sans-serif;
  color:var(--text);
  background:
    radial-gradient(900px 480px at 15% 0%, rgba(116,255,190,.14), transparent 58%),
    radial-gradient(900px 520px at 100% 5%, rgba(132,234,255,.16), transparent 58%),
    radial-gradient(700px 380px at 55% 18%, rgba(200,165,255,.12), transparent 52%),
    linear-gradient(180deg,#06111b,#030810 68%,#02050a 100%);
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  opacity:.15;
  background-image:
    linear-gradient(to right, rgba(255,255,255,.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size:72px 72px;
}
a{text-decoration:none;color:inherit}
.bg{position:fixed;inset:0;pointer-events:none;background:
  radial-gradient(400px 260px at 72% 24%, rgba(116,255,190,.12), transparent 70%),
  radial-gradient(360px 220px at 68% 30%, rgba(132,234,255,.10), transparent 72%)}
.topbar{
  position:sticky;top:0;z-index:10;
  display:flex;align-items:center;justify-content:center;
  padding:16px 24px;
  backdrop-filter: blur(16px);
  background:rgba(4,12,18,.72);
  border-bottom:1px solid rgba(255,255,255,.05);
}
.brand{
  display:inline-flex;align-items:center;gap:12px;
  padding:10px 16px;border-radius:999px;
  border:1px solid var(--line);background:rgba(8,18,25,.7);
  box-shadow:0 16px 34px rgba(0,0,0,.22), 0 0 24px rgba(116,255,190,.10);
}
.brand img{height:34px;width:auto;display:block}
.brandText{font-weight:800;letter-spacing:.14em;font-size:.82rem;color:#dffff0}
.hero{
  width:min(1360px, calc(100% - 32px));
  margin:8px auto 0;
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(340px,560px);
  gap:20px;
  align-items:center;
  min-height:320px;
}
.heroBrandCenter{grid-column:1/-1;display:flex;justify-content:center;align-items:center;margin:0 0 6px;}
.heroBrandCenter img{height:56px;width:auto;display:block;filter:drop-shadow(0 0 18px rgba(116,255,190,.25)) drop-shadow(0 0 38px rgba(132,234,255,.16));opacity:.98;}
.heroText{
  position:relative;
  padding:44px 42px;
  border:1px solid rgba(255,255,255,.06);
  border-radius:28px;
  background:linear-gradient(180deg, rgba(10,24,34,.88), rgba(6,14,20,.74));
  box-shadow:0 24px 60px rgba(0,0,0,.36), 0 0 46px rgba(116,255,190,.12), 0 0 90px rgba(132,234,255,.10);
}
.heroText h1{
  margin:0 0 12px;
  font-size:clamp(3.2rem,7vw,6.1rem);
  line-height:.96;
  letter-spacing:.06em;
}
.heroText p{
  margin:0;
  max-width:40rem;
  color:var(--muted);
  font-size:1.08rem;
  line-height:1.7;
}
.heroMoon{
  position:relative;
  min-height:390px;
  display:flex;
  align-items:center;
  justify-content:center;
}
.heroMoon img{
  width:min(100%,500px);
  max-height:500px;
  object-fit:contain;
  filter:drop-shadow(0 24px 60px rgba(0,0,0,.45)) drop-shadow(0 0 42px rgba(116,255,190,.20));
  position:relative;z-index:2;
}
.moonGlow{
  position:absolute;inset:auto 4% 10% 4%;height:55%;
  background:radial-gradient(circle at center, rgba(116,255,190,.28), transparent 58%), radial-gradient(circle at center, rgba(132,234,255,.16), transparent 68%);
  filter:blur(26px);
}
.chat{
  width:min(1360px, calc(100% - 32px));
  margin:26px auto 48px;
  padding:18px;
  border-radius:28px;
  border:1px solid rgba(255,255,255,.06);
  background:linear-gradient(180deg, rgba(7,14,20,.84), rgba(6,12,18,.92));
  box-shadow:0 24px 60px rgba(0,0,0,.36), 0 0 40px rgba(116,255,190,.10), 0 0 80px rgba(132,234,255,.10);
}
.chatMeta{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;padding:4px 4px 16px}
.chatTitle{display:flex;align-items:center;gap:14px}
.dot{width:12px;height:12px;border-radius:50%;background:linear-gradient(180deg,var(--mint),var(--cyan));box-shadow:0 0 18px rgba(116,255,190,.46)}
.name{font-weight:800;letter-spacing:.08em}
.sub{color:var(--muted);font-size:.92rem}
.chatActions{display:flex;gap:10px}
.iconBtn,.chip,.sendBtn{
  border:1px solid var(--line);
  background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  color:var(--text);
  border-radius:16px;
  padding:10px 14px;
  cursor:pointer;
  box-shadow:0 12px 24px rgba(0,0,0,.18);
}
.iconBtn:hover,.chip:hover,.sendBtn:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(0,0,0,.24),0 0 24px rgba(116,255,190,.16)}
.wall{
  min-height:300px;
  max-height:500px;
  overflow:auto;
  padding:10px;
  border-radius:20px;
  background:linear-gradient(180deg, rgba(2,6,10,.78), rgba(6,13,18,.62));
  border:1px solid rgba(255,255,255,.05);
}
.line{
  margin:0 0 12px;
  padding:14px 16px;
  border-radius:18px;
  border:1px solid rgba(255,255,255,.05);
  background:rgba(255,255,255,.03);
}
.line.user{border-color:rgba(132,234,255,.16);box-shadow:0 0 24px rgba(132,234,255,.08)}
.line.bot{border-color:rgba(116,255,190,.16);box-shadow:0 0 24px rgba(116,255,190,.08)}
.chips{display:flex;gap:10px;flex-wrap:wrap;margin:16px 0 14px}
.composer{display:grid;grid-template-columns:1fr auto;gap:12px}
.composer input,.composer textarea{
  width:100%;padding:14px 16px;border-radius:18px;
  border:1px solid rgba(255,255,255,.06);
  background:rgba(3,8,12,.72);color:var(--text)
}
@media (max-width: 920px){
  .hero{grid-template-columns:1fr;gap:10px}
  .heroBrandCenter img{height:44px}
  .heroMoon{min-height:260px}
  .heroMoon img{max-height:300px}
  .composer{grid-template-columns:1fr}
}