:root{
  --bg:#07070d; --ink:#eef0f8; --muted:#9aa3b8;
  --violet:#8b5cf6; --cyan:#22d3ee; --mint:#7cf5d0;
  --line:rgba(255,255,255,.09); --card:rgba(255,255,255,.035);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg); color:var(--ink); min-height:100vh;
  font:16px/1.6 ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased; overflow-x:hidden;
  display:flex; flex-direction:column;
}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* latar */
.bg{position:fixed;inset:0;z-index:0;overflow:hidden;pointer-events:none}
.bg .grid{
  position:absolute;inset:-20%;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 60% 55% at 50% 35%,#000 25%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 60% 55% at 50% 35%,#000 25%,transparent 78%);
  animation:drift 40s linear infinite;
}
@keyframes drift{to{transform:translate3d(-64px,-64px,0)}}
.orb{position:absolute;border-radius:50%;filter:blur(80px);opacity:.5}
.orb-a{width:520px;height:520px;left:-140px;top:-160px;background:radial-gradient(circle,#7c3aed,transparent 65%)}
.orb-b{width:460px;height:460px;right:-120px;top:120px;background:radial-gradient(circle,#0891b2,transparent 65%)}

/* header */
.bar{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;
  padding:22px clamp(18px,4vw,48px)}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}
.brand-text{font-weight:800;letter-spacing:.22em;font-size:1.02rem}
.pill{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--mint);
  border:1px solid rgba(124,245,208,.35);background:rgba(124,245,208,.07);
  padding:6px 12px;border-radius:999px}

/* hero */
main{position:relative;z-index:2;flex:1;width:min(1080px,100%);margin:0 auto;
  padding:clamp(24px,6vh,64px) clamp(18px,4vw,32px) 40px;text-align:center}
.eyebrow{font-size:.74rem;letter-spacing:.28em;text-transform:uppercase;color:var(--muted);margin:0 0 18px}
h1{margin:0;font-size:clamp(2.1rem,6.2vw,4.1rem);line-height:1.04;letter-spacing:-.03em;font-weight:800}
.grad{background:linear-gradient(100deg,var(--violet),var(--cyan) 55%,var(--mint));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.lede{max-width:640px;margin:22px auto 0;color:#c3c9da;font-size:clamp(.95rem,1.5vw,1.08rem)}

/* form */
.notify{display:flex;gap:8px;justify-content:center;margin:30px auto 0;max-width:460px;flex-wrap:wrap}
.notify input{flex:1 1 240px;min-width:0;background:rgba(255,255,255,.05);border:1px solid var(--line);
  color:var(--ink);padding:13px 15px;border-radius:11px;font-size:.95rem;outline:none}
.notify input:focus{border-color:rgba(139,92,246,.65);box-shadow:0 0 0 3px rgba(139,92,246,.16)}
.notify button{border:0;cursor:pointer;padding:13px 20px;border-radius:11px;font-weight:700;font-size:.95rem;
  color:#0b0b12;background:linear-gradient(100deg,#a78bfa,#22d3ee);transition:transform .15s ease,filter .15s}
.notify button:hover{transform:translateY(-1px);filter:brightness(1.06)}
.note{color:var(--muted);font-size:.8rem;margin:12px 0 0}
.note.ok{color:var(--mint)}
.note.err{color:#fca5a5}

/* countdown */
.countdown{display:flex;gap:clamp(10px,3vw,26px);justify-content:center;margin:38px 0 0}
.countdown div{display:flex;flex-direction:column;align-items:center;min-width:64px}
.countdown b{font-size:clamp(1.3rem,3.4vw,1.9rem);font-variant-numeric:tabular-nums;font-weight:800}
.countdown span{font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}

/* kartu */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;margin:clamp(40px,7vh,68px) 0 0;text-align:left}
.cards article{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px;
  transition:border-color .2s,transform .2s}
.cards article:hover{border-color:rgba(139,92,246,.45);transform:translateY(-2px)}
.cards h2{font-size:1rem;margin:14px 0 6px;letter-spacing:-.01em}
.cards p{margin:0;color:#b6bdd0;font-size:.88rem}
.ic svg{width:26px;height:26px}

footer{position:relative;z-index:2;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  padding:22px clamp(18px,4vw,48px);border-top:1px solid var(--line);color:var(--muted);font-size:.78rem}

/* chatbot */
.chat-fab{position:fixed;right:20px;bottom:20px;z-index:40;width:56px;height:56px;border-radius:50%;
  border:0;cursor:pointer;color:#0b0b12;display:grid;place-items:center;
  background:linear-gradient(140deg,#a78bfa,#22d3ee);
  box-shadow:0 10px 30px rgba(34,211,238,.28),0 2px 10px rgba(0,0,0,.4);
  transition:transform .18s ease}
.chat-fab:hover{transform:translateY(-2px) scale(1.03)}
.chat-fab-dot{position:absolute;top:6px;right:6px;width:9px;height:9px;border-radius:50%;
  background:var(--mint);box-shadow:0 0 0 3px rgba(124,245,208,.25)}

.chat{position:fixed;right:20px;bottom:88px;z-index:41;width:min(370px,calc(100vw - 32px));
  height:min(520px,calc(100vh - 140px));display:none;flex-direction:column;overflow:hidden;
  background:#0d0e17;border:1px solid var(--line);border-radius:16px;
  box-shadow:0 24px 60px rgba(0,0,0,.55)}
.chat.open{display:flex}
.chat-head{display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 14px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.03)}
.chat-head b{font-size:.92rem}
.live{display:inline-flex;align-items:center;gap:5px;margin-left:8px;font-size:.68rem;color:var(--muted);
  letter-spacing:.08em;text-transform:uppercase}
.live i{width:6px;height:6px;border-radius:50%;background:var(--mint);display:inline-block}
.chat-head button{background:none;border:0;color:var(--muted);font-size:1.4rem;line-height:1;cursor:pointer}
.chat-head button:hover{color:var(--ink)}
.chat-body{flex:1;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:10px}
.msg{max-width:88%;padding:10px 13px;border-radius:13px;font-size:.87rem;line-height:1.5;white-space:pre-wrap;word-wrap:break-word}
.msg.bot{background:rgba(255,255,255,.06);border:1px solid var(--line);border-bottom-left-radius:4px;align-self:flex-start}
.msg.me{background:linear-gradient(135deg,rgba(139,92,246,.9),rgba(34,211,238,.85));color:#08080e;
  border-bottom-right-radius:4px;align-self:flex-end;font-weight:600}
.msg.typing{color:var(--muted);font-style:italic}
.chat-form{display:flex;gap:8px;padding:10px;border-top:1px solid var(--line);background:rgba(255,255,255,.02)}
.chat-form input{flex:1;min-width:0;background:rgba(255,255,255,.05);border:1px solid var(--line);
  border-radius:10px;color:var(--ink);padding:11px 13px;font-size:.88rem;outline:none}
.chat-form input:focus{border-color:rgba(139,92,246,.6)}
.chat-form button{border:0;border-radius:10px;width:42px;display:grid;place-items:center;cursor:pointer;
  color:#0b0b12;background:linear-gradient(135deg,#a78bfa,#22d3ee)}
.chat-form button:disabled{opacity:.5;cursor:not-allowed}

@media (max-width:640px){
  .orb-a{width:340px;height:340px}
  .orb-b{width:300px;height:300px}
  .countdown div{min-width:52px}
  footer{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  .bg .grid{animation:none}
  *{transition:none!important}
}