:root{
  --bg:#080b16; --bg2:#0e1426; --card:rgba(255,255,255,.05); --line:rgba(255,255,255,.12);
  --txt:#eef2ff; --muted:#98a2b8; --acc:#6d5cff; --acc2:#00d3a7; --em:#ffcc4d;
  --radius:16px; --shadow:0 18px 50px rgba(0,0,0,.45);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:radial-gradient(1000px 700px at 15% -10%,#1b2350 0%,transparent 60%),
             radial-gradient(900px 600px at 100% 0%,#0d2a3a 0%,transparent 55%),
             var(--bg);
  color:var(--txt);
  font-family:"Segoe UI",Inter,system-ui,-apple-system,sans-serif;
  min-height:100vh; -webkit-font-smoothing:antialiased;
}
.bg-glow{position:fixed;inset:0;pointer-events:none;
  background:radial-gradient(600px 300px at 50% 0%,rgba(109,92,255,.18),transparent 70%);z-index:0}
a{color:inherit;text-decoration:none}
.muted{color:var(--muted)}

/* nav */
.nav{position:sticky;top:0;z-index:20;display:flex;justify-content:space-between;align-items:center;
  padding:14px 22px;backdrop-filter:blur(10px);background:rgba(8,11,22,.72);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.14em;font-size:14px}
.brand-dot{width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--acc),var(--acc2));box-shadow:0 0 14px var(--acc)}
.nav-links{display:flex;gap:8px;flex-wrap:wrap}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;
  border-radius:12px;padding:11px 18px;font:inherit;font-weight:600;cursor:pointer;transition:.15s;
  background:transparent;color:var(--txt)}
.btn-sm{padding:8px 14px;font-size:13px}
.btn-lg{padding:16px 22px;font-size:16px;width:100%;letter-spacing:.04em}
.btn-primary{background:linear-gradient(135deg,var(--acc),#8b5cf6);box-shadow:0 10px 26px rgba(109,92,255,.35)}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.08)}
.btn-ghost{border-color:var(--line);color:var(--muted)}
.btn-ghost:hover{color:var(--txt);border-color:rgba(255,255,255,.3)}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none;filter:none}

/* layout */
main{position:relative;z-index:1;max-width:1120px;margin:0 auto;padding:34px 22px 60px}
.hero{text-align:center;padding:26px 0 8px}
.pill{display:inline-block;font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--acc2);
  border:1px solid rgba(0,211,167,.35);background:rgba(0,211,167,.08);padding:6px 12px;border-radius:999px}
.hero h1{margin:16px 0 8px;font-size:clamp(28px,5vw,52px);letter-spacing:.02em;
  background:linear-gradient(120deg,#fff,#b9c0ff 60%,var(--acc2));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{margin:0 auto;max-width:560px;color:var(--muted);font-size:16px;line-height:1.6}
.hero-stats{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin-top:22px}
.stat{min-width:120px;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:12px 18px}
.stat b{display:block;font-size:22px}
.stat span{font-size:12px;color:var(--muted)}

/* spin */
.spin-wrap{display:grid;grid-template-columns:minmax(280px,1fr) minmax(280px,420px);gap:28px;align-items:center;
  margin:34px 0 10px}
@media(max-width:860px){.spin-wrap{grid-template-columns:1fr;gap:20px}}
.wheel-stage{position:relative;display:flex;justify-content:center;align-items:center}
.wheel-holder{position:relative;width:min(78vw,520px);aspect-ratio:1;filter:drop-shadow(0 24px 50px rgba(0,0,0,.55))}
#roda{width:100%;height:100%;display:block;border-radius:50%}
.pointer{position:absolute;top:-4px;left:50%;transform:translateX(-50%);width:0;height:0;z-index:3;
  border-left:14px solid transparent;border-right:14px solid transparent;border-top:26px solid var(--em);
  filter:drop-shadow(0 4px 10px rgba(0,0,0,.6))}
.hub{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:26%;aspect-ratio:1;border-radius:50%;
  background:linear-gradient(135deg,#131a33,#0a0f20);border:2px solid rgba(255,255,255,.16);
  display:grid;place-items:center;font-weight:800;letter-spacing:.1em;font-size:13px;color:#cfd6ff;z-index:2}
@media(max-width:860px){.pointer{top:calc(50% - min(39vw,260px) - 4px)}}

/* panel */
.panel{background:linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.03));
  border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.panel-head h2{margin:0 0 6px;font-size:20px}
.panel-head p{margin:0 0 18px;font-size:14px}
.field{display:block;margin-bottom:12px}
.field span{display:block;font-size:12px;color:var(--muted);margin-bottom:6px;letter-spacing:.06em;text-transform:uppercase}
.field input{width:100%;padding:12px 14px;border-radius:12px;border:1px solid var(--line);
  background:rgba(0,0,0,.25);color:var(--txt);font:inherit;outline:none}
.field input:focus{border-color:var(--acc);box-shadow:0 0 0 3px rgba(109,92,255,.18)}
.note{font-size:12px;color:var(--muted);text-align:center;margin:12px 0 0;line-height:1.5}
.hasil{margin-top:16px;text-align:center;border:1px dashed var(--line);border-radius:14px;padding:16px;
  background:rgba(0,211,167,.07);animation:pop .35s ease}
.hasil-label{display:block;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--acc2)}
.hasil strong{display:block;font-size:22px;margin:6px 0}
.hasil-kode{font-size:12px;color:var(--muted);font-family:ui-monospace,Consolas,monospace}
@keyframes pop{from{opacity:0;transform:scale(.94)}to{opacity:1;transform:none}}

/* info */
.info{margin-top:44px}
.info h2{font-size:20px;margin:0 0 14px}
.info-head{display:flex;justify-content:space-between;align-items:center;gap:12px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media(max-width:760px){.grid3{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px}
.card b{display:block;margin-bottom:6px}
.card p{margin:0;color:var(--muted);font-size:14px;line-height:1.55}
.daftar-pemenang{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.daftar-pemenang li{background:var(--card);border:1px solid var(--line);border-radius:999px;padding:8px 14px;font-size:13px}
.daftar-pemenang b{color:var(--acc2)}
.daftar-hadiah{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:8px;
  margin:0;padding:0 0 0 0;list-style:none;counter-reset:h}
.daftar-hadiah li{counter-increment:h;display:flex;align-items:center;gap:10px;background:var(--card);
  border:1px solid var(--line);border-radius:10px;padding:9px 12px;font-size:13px}
.daftar-hadiah li::before{content:counter(h,decimal-leading-zero);color:var(--muted);font-family:ui-monospace,monospace;font-size:11px}
.swatch{width:9px;height:9px;border-radius:50%;flex:0 0 auto}

/* footer */
.footer{position:relative;z-index:1;border-top:1px solid var(--line);padding:18px 22px;display:flex;
  justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--muted)}