:root{
  --bg:#05060b;--bg2:#0b0d18;--text:#f3f4fb;--mute:#9aa0bd;--line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.035);--glass2:rgba(255,255,255,.06);
  --o1:#ffd36b;--o2:#ff9a1f;--o3:#ff5a00;--v1:#8b5cff;--v2:#c084fc;
  --fire:linear-gradient(135deg,#ffe29a 0%,#ffb020 35%,#ff6a00 75%,#ff3d00 100%);
  --glow:0 0 24px rgba(255,140,0,.45),0 0 80px rgba(255,90,0,.25);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 "Be Vietnam Pro",system-ui,sans-serif;min-height:100vh;overflow-x:hidden}
body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:-1;
  background:radial-gradient(900px 500px at 85% -5%,rgba(139,92,255,.16),transparent 60%),radial-gradient(800px 500px at -10% 40%,rgba(255,106,0,.10),transparent 60%),var(--bg)}
a{color:var(--o1);text-decoration:none}
img{max-width:100%}
::selection{background:var(--o3);color:#fff}

/* ---------- Header ---------- */
.top{position:fixed;top:0;left:0;right:0;z-index:50;display:flex;align-items:center;gap:16px;padding:14px clamp(16px,4vw,56px);transition:background .3s,border-color .3s,padding .3s;border-bottom:1px solid transparent}
.top.scrolled,.top.solid{background:rgba(6,7,14,.72);backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);border-color:var(--line);padding-top:10px;padding-bottom:10px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--text);letter-spacing:.02em}
.ball{width:28px;height:28px;border-radius:50%;background:radial-gradient(circle at 34% 28%,#fff8d6 0 8%,#ffc53d 22%,#ff8a00 60%,#c43e00 100%);box-shadow:0 0 18px rgba(255,150,0,.8);position:relative;flex:none}
.ball::after{content:"★";position:absolute;inset:0;display:grid;place-items:center;color:#d0161b;font-size:12px;text-shadow:0 0 2px #ff6b00}
#menu{margin-left:auto;display:flex;align-items:center;gap:4px}
#menu a{position:relative;padding:8px 14px;border-radius:10px;color:#d9dcef;font-weight:600;font-size:15px;transition:color .2s}
#menu a:not(.btn)::after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;background:var(--fire);transform:scaleX(0);transition:transform .25s;box-shadow:0 0 10px rgba(255,120,0,.8)}
#menu a:not(.btn):hover,#menu a.on{color:#fff}
#menu a:not(.btn):hover::after,#menu a.on::after{transform:scaleX(1)}
#menu .btn{margin-left:6px}
.burger{display:none;margin-left:auto;background:var(--glass2);color:var(--text);border:1px solid var(--line);border-radius:12px;padding:6px 12px;font-size:18px;cursor:pointer}

/* ---------- Buttons ---------- */
.btn{position:relative;overflow:hidden;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 20px;border-radius:14px;background:var(--fire);color:#1b0b00!important;font-weight:800;border:0;cursor:pointer;box-shadow:var(--glow);transition:transform .2s,box-shadow .25s;font:inherit;font-weight:800;letter-spacing:.01em}
.btn::before{content:"";position:absolute;top:0;bottom:0;left:-60%;width:40%;background:linear-gradient(100deg,transparent,rgba(255,255,255,.65),transparent);transform:skewX(-20deg);transition:left .6s}
.btn:hover{transform:translateY(-2px);box-shadow:0 0 30px rgba(255,150,0,.65),0 0 110px rgba(255,90,0,.35)}
.btn:hover::before{left:130%}
.btn.ghost{background:rgba(255,255,255,.04);color:var(--text)!important;border:1px solid rgba(255,255,255,.16);box-shadow:none;backdrop-filter:blur(8px)}
.btn.ghost:hover{border-color:rgba(255,180,80,.7);box-shadow:0 0 24px rgba(255,140,0,.25)}
.btn.big{padding:16px 32px;font-size:18px;border-radius:16px}

main{padding:96px clamp(16px,4vw,56px) 64px;max-width:1240px;margin:0 auto}
main.home{padding-top:0;max-width:none;overflow-x:clip}
.wrap{max-width:1240px;margin:0 auto}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:100vh;display:grid;grid-template-columns:1.15fr .85fr;align-items:center;gap:24px;padding:110px clamp(16px,5vw,72px) 60px;max-width:1340px;margin:0 auto;isolation:isolate}
#sparks{position:absolute;inset:0;width:100%;height:100%;z-index:-1;pointer-events:none}
.aurora{position:absolute;inset:-10% -20%;z-index:-2;pointer-events:none;filter:blur(70px);opacity:.9}
.aurora i{position:absolute;border-radius:50%;mix-blend-mode:screen}
.aurora i:nth-child(1){width:55vw;height:55vw;max-width:820px;max-height:820px;left:45%;top:5%;background:radial-gradient(circle,rgba(255,110,0,.55),transparent 65%);animation:drift1 16s ease-in-out infinite alternate}
.aurora i:nth-child(2){width:50vw;height:50vw;max-width:760px;max-height:760px;left:60%;top:30%;background:radial-gradient(circle,rgba(139,92,255,.5),transparent 65%);animation:drift2 20s ease-in-out infinite alternate}
.aurora i:nth-child(3){width:40vw;height:40vw;max-width:600px;max-height:600px;left:5%;top:45%;background:radial-gradient(circle,rgba(255,60,0,.25),transparent 65%);animation:drift1 24s ease-in-out infinite alternate-reverse}
@keyframes drift1{to{transform:translate(-12%,10%) scale(1.15)}}
@keyframes drift2{to{transform:translate(-18%,-12%) scale(.9)}}
.kicker{display:inline-flex;align-items:center;gap:10px;margin:0 0 18px;padding:6px 14px;border-radius:99px;background:rgba(255,255,255,.04);border:1px solid var(--line);color:#ffd9a0;font-weight:600;letter-spacing:.14em;text-transform:uppercase;font-size:12px;backdrop-filter:blur(6px)}
.live{width:8px;height:8px;border-radius:50%;background:#35e08a;box-shadow:0 0 0 0 rgba(53,224,138,.7);animation:pulse 1.8s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 10px rgba(53,224,138,0)}100%{box-shadow:0 0 0 0 rgba(53,224,138,0)}}
.title{margin:0;line-height:1.06;font-weight:900;letter-spacing:-.02em}
.title .t1{display:block;font-size:clamp(54px,10.5vw,148px);background:linear-gradient(100deg,#ffb020 0%,#ffe7a3 18%,#ff9a1f 34%,#ff5a00 50%,#ffd36b 66%,#fff4cf 76%,#ff8a00 100%);background-size:250% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;filter:drop-shadow(0 0 28px rgba(255,120,0,.45)) drop-shadow(0 6px 0 rgba(120,30,0,.35));animation:shine 7s linear infinite}
@keyframes shine{to{background-position:-250% 0}}
.title .t2{display:block;margin-top:14px;font-size:clamp(26px,4.4vw,60px);letter-spacing:.62em;padding-left:.1em;color:transparent;-webkit-text-stroke:1.5px rgba(214,190,255,.9);text-shadow:0 0 24px rgba(139,92,255,.9),0 0 60px rgba(139,92,255,.5)}
.lead{color:#b9bedb;font-size:clamp(16px,1.6vw,19px);max-width:540px;margin:26px 0 0}
.cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px}

/* Ngọc rồng lớn */
.hero-art{position:relative;aspect-ratio:1;width:min(100%,520px);margin:auto;display:grid;place-items:center}
.dball{position:relative;width:46%;aspect-ratio:1;border-radius:50%;
  background:radial-gradient(circle at 32% 26%,#fffbe6 0 6%,#ffe08a 14%,#ffae1f 38%,#ff7a00 66%,#b33800 100%);
  box-shadow:inset -18px -22px 40px rgba(120,30,0,.55),inset 10px 12px 30px rgba(255,255,255,.35),0 0 60px rgba(255,140,0,.75),0 0 160px rgba(255,90,0,.45);
  animation:float 6s ease-in-out infinite}
.dball::before{content:"";position:absolute;inset:6%;border-radius:50%;background:radial-gradient(circle at 30% 20%,rgba(255,255,255,.55),transparent 35%)}
.dball .st{position:absolute;color:#e0131b;font-size:clamp(20px,3.4vw,38px);text-shadow:0 0 6px rgba(255,60,0,.9),0 0 1px #7a0000;line-height:1}
.dball .st:nth-child(1){left:30%;top:26%}.dball .st:nth-child(2){left:54%;top:30%}.dball .st:nth-child(3){left:28%;top:52%}.dball .st:nth-child(4){left:52%;top:55%}
@keyframes float{50%{transform:translateY(-16px)}}
.ring{position:absolute;inset:0;margin:auto;border-radius:50%;border:1px solid rgba(255,170,60,.35);box-shadow:0 0 30px rgba(255,120,0,.15) inset}
.ring.r1{width:70%;height:70%;border-style:dashed;animation:spin 28s linear infinite}
.ring.r2{width:88%;height:88%;border-color:rgba(160,120,255,.35);animation:spin 46s linear infinite reverse}
.ring.r3{width:100%;height:100%;border-color:rgba(255,255,255,.06)}
.orbit{position:absolute;inset:0;animation:spin 36s linear infinite}
.orbit b{position:absolute;left:50%;top:50%;width:7%;aspect-ratio:1;margin:-3.5%;border-radius:50%;background:radial-gradient(circle at 34% 28%,#fff8d6 0 10%,#ffc53d 30%,#ff8a00 70%,#b33800);box-shadow:0 0 14px rgba(255,150,0,.9)}
.orbit b:nth-child(1){transform:rotate(0deg) translateX(620%)}.orbit b:nth-child(2){transform:rotate(51.4deg) translateX(620%)}
.orbit b:nth-child(3){transform:rotate(102.8deg) translateX(620%)}.orbit b:nth-child(4){transform:rotate(154.2deg) translateX(620%)}
.orbit b:nth-child(5){transform:rotate(205.6deg) translateX(620%)}.orbit b:nth-child(6){transform:rotate(257deg) translateX(620%)}
.orbit b:nth-child(7){transform:rotate(308.4deg) translateX(620%)}
@keyframes spin{to{transform:rotate(360deg)}}
.scroll-hint{position:absolute;left:50%;bottom:22px;transform:translateX(-50%);width:26px;height:42px;border-radius:14px;border:2px solid rgba(255,255,255,.25)}
.scroll-hint::after{content:"";position:absolute;left:50%;top:8px;width:4px;height:8px;margin-left:-2px;border-radius:2px;background:var(--o2);animation:wheel 1.6s infinite}
@keyframes wheel{to{transform:translateY(14px);opacity:0}}

/* ---------- Stats ---------- */
.statbar{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;max-width:1240px;margin:-40px auto 0;padding:0 clamp(16px,4vw,56px);position:relative;z-index:2}
.stat{padding:22px 24px}
.stat small{display:block;color:var(--mute);font-size:13px;letter-spacing:.08em;text-transform:uppercase}
.stat b{display:block;font-size:clamp(28px,3.4vw,40px);font-weight:900;background:var(--fire);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.2}

/* ---------- Glass ---------- */
.glass,.panel{position:relative;background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.015));border:1px solid var(--line);border-radius:22px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);overflow:hidden}
.panel{padding:24px}
.glass::before,.panel::before{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;opacity:0;transition:opacity .3s;
  background:radial-gradient(420px circle at var(--mx,50%) var(--my,50%),rgba(255,150,40,.13),transparent 45%)}
.glass::after,.panel::after{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;padding:1px;opacity:0;transition:opacity .3s;
  background:radial-gradient(300px circle at var(--mx,50%) var(--my,50%),rgba(255,170,60,.8),transparent 60%);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude}
.glass:hover::before,.glass:hover::after,.panel:hover::before,.panel:hover::after{opacity:1}
.panel h2,.sec-h{margin:0 0 18px;font-size:22px;font-weight:800}

/* ---------- Sections ---------- */
.section{max-width:1240px;margin:0 auto;padding:88px clamp(16px,4vw,56px) 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px}
.sec-head p{margin:0 0 6px;color:var(--o2);font-weight:700;letter-spacing:.2em;text-transform:uppercase;font-size:12px}
.sec-head h2{margin:0;font-size:clamp(28px,3.6vw,44px);font-weight:900;line-height:1.1}
.sec-head h2::after{content:"";display:block;width:64px;height:4px;margin-top:12px;border-radius:4px;background:var(--fire);box-shadow:0 0 16px rgba(255,120,0,.8)}
.more{font-weight:700;white-space:nowrap}
.more:hover{text-shadow:0 0 12px rgba(255,160,0,.8)}
.grid-2{display:grid;grid-template-columns:1.35fr 1fr;gap:22px}

/* News cards */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px}
.ncard{display:flex;flex-direction:column;color:var(--text);transition:transform .3s}
.ncard:hover{transform:translateY(-6px)}
.ncard .cover{aspect-ratio:16/9;overflow:hidden;background:radial-gradient(circle at 70% 30%,rgba(255,140,0,.35),transparent 50%),radial-gradient(circle at 20% 80%,rgba(139,92,255,.35),transparent 55%),#0e1020;display:grid;place-items:center}
.ncard .cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.ncard:hover .cover img{transform:scale(1.07)}
.ncard .cover .ball{width:56px;height:56px}
.ncard .cover .ball::after{font-size:22px}
.ncard .body{padding:16px 18px 18px}
.ncard h3{margin:8px 0 6px;font-size:17px;line-height:1.35}
.tag{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;padding:3px 10px;border-radius:99px;background:rgba(255,160,40,.14);color:var(--o1);border:1px solid rgba(255,160,40,.3)}
.tag.ev{background:rgba(139,92,255,.16);color:#cdb8ff;border-color:rgba(139,92,255,.4)}
small,.mute{color:var(--mute)}

/* Podium + ranking */
.podium{display:grid;grid-template-columns:1fr 1.15fr 1fr;align-items:end;gap:14px;margin-bottom:18px}
.pod{text-align:center;padding:18px 10px 16px}
.pod .ava{width:72px;height:72px;margin:0 auto 10px}
.pod.p1 .ava{width:96px;height:96px}
.pod .medal{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:50%;font-weight:900;font-size:14px;color:#1b0b00;margin-bottom:8px}
.pod.p1{padding-top:26px;border-color:rgba(255,200,80,.45);box-shadow:0 0 40px rgba(255,160,0,.18)}
.pod.p1 .medal{background:linear-gradient(135deg,#fff1b8,#ffc53d,#d98a00);box-shadow:0 0 18px rgba(255,190,40,.9)}
.pod.p2 .medal{background:linear-gradient(135deg,#ffffff,#c8cfe0,#8a93a8)}
.pod.p3 .medal{background:linear-gradient(135deg,#ffd7b0,#e08a4a,#9a4f1c)}
.pod .nm{display:block;font-weight:800;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pod .val{display:block;font-weight:800;font-size:14px;background:var(--fire);-webkit-background-clip:text;background-clip:text;color:transparent}
.ava{display:grid;place-items:center;border-radius:50%;object-fit:contain;image-rendering:pixelated;background:radial-gradient(circle at 50% 35%,rgba(255,170,60,.28),rgba(255,255,255,.03) 70%);border:1px solid rgba(255,190,100,.35);box-shadow:0 0 20px rgba(255,140,0,.2);font-weight:900;color:var(--o1);font-size:22px;padding:6px;text-transform:uppercase}
.ava.sm{width:36px;height:36px;font-size:14px;padding:3px}
.rlist{list-style:none;margin:0;padding:0}
.rlist li{display:flex;align-items:center;gap:12px;padding:9px 6px;border-bottom:1px solid var(--line)}
.rlist li:last-child{border-bottom:0}
.rlist .rk{width:34px;text-align:center;font-weight:900;color:var(--mute)}
.rlist .nm{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:600}
.rlist .val{font-weight:700;color:#ffd9a0;font-variant-numeric:tabular-nums}
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:22px}
.tabs a{padding:9px 18px;border-radius:12px;border:1px solid var(--line);background:var(--glass);color:#d9dcef;font-weight:600;transition:border-color .2s,box-shadow .2s}
.tabs a:hover{border-color:rgba(255,170,60,.5)}
.tabs a.on{background:var(--fire);color:#1b0b00;border-color:transparent;font-weight:800;box-shadow:var(--glow)}

/* Giftcode tickets */
.tickets{display:grid;gap:12px}
.code{position:relative;display:flex;justify-content:space-between;align-items:center;gap:12px;padding:16px 20px;border-radius:16px;background:linear-gradient(100deg,rgba(255,140,0,.14),rgba(139,92,255,.10));border:1px solid rgba(255,170,60,.35);box-shadow:0 0 30px rgba(255,120,0,.08) inset}
.code::before,.code::after{content:"";position:absolute;top:50%;width:18px;height:18px;margin-top:-9px;border-radius:50%;background:var(--bg)}
.code::before{left:-10px}.code::after{right:-10px}
.code b{font-size:20px;letter-spacing:.14em;font-weight:900;background:var(--fire);-webkit-background-clip:text;background-clip:text;color:transparent}
.copy{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.18);color:var(--text);border-radius:10px;padding:7px 14px;cursor:pointer;font:inherit;font-weight:700;font-size:14px;transition:all .2s}
.copy:hover{border-color:var(--o2);box-shadow:0 0 16px rgba(255,140,0,.4)}
.copy.done{background:rgba(53,224,138,.15);border-color:#35e08a;color:#8ff0bf}

/* Download */
.dl{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.dl .panel{padding:32px;text-align:center}
.dl .ico{font-size:52px;line-height:1;margin-bottom:12px;filter:drop-shadow(0 0 18px rgba(255,140,0,.6))}

/* Forms */
.form{max-width:440px;margin:24px auto;display:grid;gap:14px}
.form h2{margin:0 0 4px;font-size:26px;font-weight:900}
.form input{width:100%;padding:14px 16px;border-radius:14px;border:1px solid rgba(255,255,255,.12);background:rgba(0,0,0,.35);color:var(--text);font:inherit;transition:border-color .2s,box-shadow .2s}
.form input:focus{outline:0;border-color:var(--o2);box-shadow:0 0 0 3px rgba(255,140,0,.18),0 0 24px rgba(255,120,0,.2)}
.alert{padding:12px 16px;border-radius:14px;background:rgba(229,72,77,.12);border:1px solid rgba(229,72,77,.6)}
.alert.ok{background:rgba(53,224,138,.1);border-color:rgba(53,224,138,.6)}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px;margin:16px 0 22px}
.stats .panel{padding:20px}
.stats .panel b{display:block;font-size:26px;font-weight:900;margin-top:4px}
table{width:100%;border-collapse:collapse}
th,td{padding:11px 8px;border-bottom:1px solid var(--line);text-align:left}
th{color:var(--mute);font-weight:600;font-size:13px;text-transform:uppercase;letter-spacing:.06em}

/* Page head (trang con) */
.phead{padding:40px 0 30px;text-align:center}
.phead h1{margin:0;font-size:clamp(36px,6vw,64px);font-weight:900;line-height:1.05;background:linear-gradient(100deg,#fff4cf,#ffb020 40%,#ff6a00);-webkit-background-clip:text;background-clip:text;color:transparent;filter:drop-shadow(0 0 22px rgba(255,120,0,.35))}
.phead p{margin:10px 0 0;color:var(--mute)}

.article{max-width:820px;margin:0 auto}
.article h1{font-size:clamp(28px,4vw,42px);line-height:1.2;margin:14px 0 6px}
.article img{border-radius:14px}

.foot{margin-top:40px;text-align:center;color:var(--mute);font-size:13px;padding:30px 16px;border-top:1px solid var(--line)}
.foot .logo{justify-content:center;margin-bottom:8px}

.reveal{opacity:0;transform:translateY(24px);transition:opacity .8s ease,transform .8s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

@media (max-width:900px){
  .burger{display:block}
  #menu{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;padding:12px;background:rgba(6,7,14,.96);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
  #menu.open{display:flex}
  #menu .btn{margin:6px 0 0}
  .top{background:rgba(6,7,14,.72);backdrop-filter:blur(16px)}
  .hero{grid-template-columns:1fr;text-align:center;padding-top:96px;min-height:auto}
  .hero-art{width:min(78vw,340px);order:-1}
  .lead{margin-left:auto;margin-right:auto}
  .cta{justify-content:center}
  .scroll-hint{display:none}
  .statbar{grid-template-columns:1fr;margin-top:10px}
  .grid-2{grid-template-columns:1fr}
  .section{padding-top:64px}
  .sec-head{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .podium{gap:8px}
  .pod .ava{width:52px;height:52px}.pod.p1 .ava{width:66px;height:66px}
  .pod .val{font-size:12px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}