:root{
  --bg:#080604; --bg2:#14100a; --panel:rgba(32,22,8,.68); --line:rgba(255,184,77,.2); --line2:rgba(255,224,138,.28);
  --amber:#ffb84d; --amber2:#ff8a1f; --cyan:#ffe08a; --cyan2:#b8860b; --text:#fff4dc; --muted:#bfb08e; --radius:18px;
  --grad:linear-gradient(100deg,var(--amber) 0%,#ffe0a0 45%,var(--cyan) 100%);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:
 radial-gradient(900px 600px at 85% -10%,#3a2706 0%,transparent 60%),radial-gradient(700px 500px at -10% 55%,#2a1a04 0%,transparent 60%),
 radial-gradient(600px 400px at 60% 110%,#4a2c05 0%,transparent 60%),var(--bg);
 color:var(--text);line-height:1.6;overflow-x:hidden;min-height:100vh}
a{color:var(--cyan);text-decoration:none}a:hover{text-decoration:underline}
img,svg{max-width:100%}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
em{font-style:normal}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
/* cavern background: crystal shards + glints */
.cave{position:fixed;inset:0;z-index:-2;pointer-events:none;background-image:
 radial-gradient(1.4px 1.4px at 15% 25%,#ffd58a99 50%,transparent 51%),radial-gradient(1.2px 1.2px at 72% 12%,#ffe08a88 50%,transparent 51%),
 radial-gradient(1px 1px at 40% 78%,#ffd58a77 50%,transparent 51%),radial-gradient(1.4px 1.4px at 88% 62%,#ffe08a88 50%,transparent 51%),
 radial-gradient(1px 1px at 8% 92%,#fff5 50%,transparent 51%);background-size:380px 380px;animation:drift 140s linear infinite}
@keyframes drift{to{background-position:380px 380px}}
.shards{position:fixed;left:0;right:0;bottom:0;height:150px;z-index:-1;pointer-events:none;opacity:.55;
 background:
 linear-gradient(160deg,transparent 49%,#ffe08a44 50%,transparent 62%) 4% 100%/90px 120px no-repeat,
 linear-gradient(200deg,transparent 49%,#ff8a1f55 50%,transparent 62%) 22% 100%/70px 90px no-repeat,
 linear-gradient(160deg,transparent 49%,#ffb84d44 50%,transparent 62%) 63% 100%/110px 140px no-repeat,
 linear-gradient(200deg,transparent 49%,#ffe08a55 50%,transparent 62%) 92% 100%/90px 120px no-repeat;
 filter:drop-shadow(0 0 14px #ffd76a66)}
.glow{position:fixed;width:420px;height:420px;border-radius:50%;filter:blur(120px);opacity:.22;z-index:-1;pointer-events:none}
.glow-a{background:var(--amber2);top:-140px;left:-140px;animation:pulse 10s ease-in-out infinite}
.glow-b{background:var(--cyan2);bottom:-160px;right:-160px;animation:pulse 12s ease-in-out infinite reverse}
@keyframes pulse{50%{transform:scale(1.2);opacity:.34}}
/* nav */
.nav{position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;padding:12px clamp(16px,5vw,64px);backdrop-filter:blur(14px);background:rgba(8,6,4,.78);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:800;letter-spacing:.1em}
.brand:hover{text-decoration:none}.brand img{width:34px;height:34px}
.brand em{color:var(--amber);font-weight:600;letter-spacing:.02em;font-size:.82em}
nav{display:flex;align-items:center;gap:22px}
nav a{color:var(--muted);font-weight:500}nav a:hover,nav a.on{color:var(--text);text-decoration:none}
nav a.on{border-bottom:2px solid var(--amber)}
.menu-btn{display:none;background:none;border:0;cursor:pointer;padding:8px}
.menu-btn span{display:block;width:24px;height:2px;background:var(--text);margin:5px 0}
@media(max-width:820px){.menu-btn{display:block}
 nav{position:fixed;top:58px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:rgba(8,6,4,.97);border-bottom:1px solid var(--line);display:none}
 nav.open{display:flex}nav a{padding:14px 24px;border-top:1px solid var(--line)}nav a.on{border-bottom:0;color:var(--amber)}}
/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 24px;border-radius:999px;border:0;cursor:pointer;font:inherit;font-weight:700;color:#150b00;background:var(--grad);background-size:200% 100%;box-shadow:0 8px 28px -8px rgba(255,138,31,.7);transition:transform .2s,background-position .5s;min-height:44px}
.btn:hover{transform:translateY(-2px);background-position:100% 0;text-decoration:none}
.btn:disabled,.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--line2);box-shadow:none}
.btn-sm{padding:8px 16px;font-size:.9rem;min-height:38px}
/* layout */
section,.wrap{padding:56px clamp(16px,5vw,64px);max-width:1180px;margin:0 auto}
h1{font-size:clamp(2.2rem,8vw,4.2rem);line-height:1.08;letter-spacing:-.02em}
h2{font-size:clamp(1.6rem,5vw,2.4rem);margin-bottom:10px}
h3{font-size:1.15rem;margin-bottom:6px}
.lead{color:var(--muted);font-size:1.08rem;max-width:62ch;margin:14px 0 22px}
.tag{display:inline-block;padding:4px 12px;border:1px solid var(--line);border-radius:999px;color:var(--amber);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;margin-bottom:14px}
.hero{display:grid;gap:30px;align-items:center;padding-top:44px}
@media(min-width:900px){.hero{grid-template-columns:1.15fr .85fr}}
.hero-art{display:flex;justify-content:center}.hero-art svg{width:min(320px,80%);filter:drop-shadow(0 0 40px #ff8a1f66)}
.cta{display:flex;flex-wrap:wrap;gap:12px}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px;backdrop-filter:blur(6px)}
.card.cy{border-color:var(--line2)}
.card p{color:var(--muted)}
.big{font-size:1.9rem;font-weight:800}
.warn{border:1px solid #ff8a1f88;background:rgba(255,138,31,.09);border-radius:var(--radius);padding:16px 18px;color:#ffe3c2;font-size:.95rem}
/* tokenomics bar & donut */
.alloc{display:flex;height:38px;border-radius:12px;overflow:hidden;margin:18px 0;border:1px solid var(--line)}
.alloc div{display:flex;align-items:center;justify-content:center;font-size:.78rem;font-weight:700;color:#0a0820}
.legend{display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(210px,1fr))}
.legend li{list-style:none;display:flex;gap:10px;align-items:flex-start;color:var(--muted)}
.legend i{width:14px;height:14px;border-radius:4px;flex:none;margin-top:5px}
.legend b{color:var(--text)}
.chartwrap{display:grid;gap:20px;align-items:center}
@media(min-width:760px){.chartwrap{grid-template-columns:260px 1fr}}
.donut{width:min(260px,70vw);margin:0 auto;display:block}
/* tables */
.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel)}
table{border-collapse:collapse;width:100%;min-width:620px;font-size:.92rem}
th,td{padding:10px 14px;text-align:left;border-bottom:1px solid rgba(255,184,77,.1);white-space:nowrap}
th{color:var(--amber);font-size:.78rem;text-transform:uppercase;letter-spacing:.06em}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
tr:last-child td{border-bottom:0}
/* roadmap */
.road{list-style:none;border-left:2px solid var(--line);margin-left:8px;padding-left:22px;display:grid;gap:18px}
.road li{position:relative}.road li::before{content:"";position:absolute;left:-30px;top:6px;width:14px;height:14px;transform:rotate(45deg);background:var(--amber);box-shadow:0 0 12px var(--amber)}
.road li.c::before{background:var(--cyan);box-shadow:0 0 12px var(--cyan)}
.road b{color:var(--text)}.road span{color:var(--muted)}
details{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:14px 18px;margin-bottom:10px}
summary{cursor:pointer;font-weight:700}details p{color:var(--muted);margin-top:8px}
.addr{font-family:ui-monospace,Menlo,Consolas,monospace;color:var(--amber);word-break:break-all}
.addr.tba{color:var(--muted);font-style:italic}
form.wl{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
input[type=email],input[type=text]{flex:1 1 220px;padding:12px 16px;border-radius:999px;border:1px solid var(--line2);background:rgba(8,6,4,.7);color:var(--text);font:inherit;min-height:44px}
footer{border-top:1px solid var(--line);padding:30px clamp(16px,5vw,64px);color:var(--muted);font-size:.88rem;text-align:center}
footer p{max-width:80ch;margin:6px auto}
/* demo banner */
.demo{background:linear-gradient(90deg,#ff8a1f33,#1aa7d633);border-bottom:1px solid var(--line);text-align:center;padding:6px 12px;font-size:.82rem;color:#ffe3c2;letter-spacing:.04em}
/* ===== GAME ===== */
.game{display:grid;gap:16px;padding-top:18px}
@media(min-width:960px){.game{grid-template-columns:minmax(300px,380px) 1fr}}
.hud{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:10px 14px}
.stat small{display:block;color:var(--muted);font-size:.72rem;text-transform:uppercase;letter-spacing:.07em}
.stat b{font-size:1.2rem;font-variant-numeric:tabular-nums}
.minebox{display:flex;flex-direction:column;align-items:center;gap:10px;padding:18px}
#rock{width:min(240px,62vw);aspect-ratio:1;border:0;background:none;cursor:pointer;touch-action:manipulation;-webkit-tap-highlight-color:transparent;user-select:none;transition:transform .06s;filter:drop-shadow(0 0 28px #ffb84d66)}
#rock:active{transform:scale(.94)}#rock svg{width:100%;height:100%;pointer-events:none}
.float{position:fixed;pointer-events:none;color:var(--amber);font-weight:800;text-shadow:0 0 8px #000;animation:up .8s ease-out forwards;z-index:80}
@keyframes up{to{transform:translateY(-60px);opacity:0}}
.bar{height:10px;border-radius:6px;background:rgba(255,255,255,.08);overflow:hidden}
.bar i{display:block;height:100%;width:0;background:var(--grad)}
.tabs{display:flex;gap:8px;margin-bottom:12px;flex-wrap:wrap}
.tabs button{flex:1;padding:10px;border-radius:12px;border:1px solid var(--line);background:transparent;color:var(--muted);font:inherit;font-weight:600;cursor:pointer;min-height:44px}
.tabs button.on{color:#150b00;background:var(--grad);border-color:transparent}
.up{display:flex;justify-content:space-between;gap:10px;align-items:center;padding:12px;border:1px solid var(--line);border-radius:14px;margin-bottom:8px;background:rgba(8,6,4,.5)}
.up .t{min-width:0}.up .t b{display:block}.up .t span{color:var(--muted);font-size:.82rem}
.up button{white-space:nowrap}
.msg{min-height:1.4em;color:var(--cyan);font-size:.88rem}
.pill{display:inline-block;padding:2px 10px;border-radius:999px;font-size:.78rem;border:1px solid var(--line2);color:var(--cyan)}
.pill.ok{border-color:#59f0a0;color:#59f0a0}.pill.no{border-color:#ff8a1f;color:#ffb84d}
.lb-me{background:rgba(79,227,255,.08)}

.gate{margin:16px 0}.gsteps{list-style:none;display:grid;gap:12px;margin:10px 0}.gsteps li{padding:12px;border:1px solid var(--line);border-radius:12px}.gsteps li.done{opacity:.6}.gsteps li.done b::after{content:" \2713";color:#8fe388}.gsteps li.cur{border-color:var(--amber)}.gsteps .btn{margin-top:8px}.gsteps span{color:var(--muted);font-size:.9rem}
/* ---- VIP ---- */
.viptiers{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;margin-top:16px}
.viptier{position:relative;border-color:#6b4a12}.viptier.plus{border-color:#ffc34d;box-shadow:0 0 0 1px #ffc34d55,0 10px 40px #ffb3001a}
.vipprice{font-size:1.1rem;margin:4px 0 8px}.vipprice b{font-size:2rem;background:linear-gradient(90deg,#fff2b8,#f6b72c);-webkit-background-clip:text;background-clip:text;color:transparent}
.vipperks{margin:0 0 10px 18px;padding:0}.vipperks li{margin:4px 0}.vipnote{font-size:.8rem;color:var(--muted)}
.pill.vipbadge{background:linear-gradient(90deg,#f6b72c,#ffe08a);color:#2a1a02;font-weight:700;border:0}
.pill.vipbadge.plus{background:linear-gradient(90deg,#ff9f1a,#fff2b8,#ff9f1a);box-shadow:0 0 8px #ffc34d88}
.vippay .vippaygrid{display:grid;grid-template-columns:minmax(160px,240px) 1fr;gap:18px;align-items:start}
.vippay .qr{background:#fff;border-radius:12px;padding:6px}.vippay .qr svg{width:100%;height:auto;display:block}
.vippay code,.vipstate code{word-break:break-all}
@media(max-width:600px){.vippay .vippaygrid{grid-template-columns:1fr}.vippay .qr{max-width:240px}}
.vip-renew{margin:12px 0}.vipprofile{margin:6px 0 10px;color:var(--muted)}
/* cosmetic skins: recolor the nugget gradient */
.skin-rose #r1 stop:nth-child(1){stop-color:#ffe4e1}.skin-rose #r1 stop:nth-child(2){stop-color:#e8a598}.skin-rose #r1 stop:nth-child(3){stop-color:#9c5b52}
.skin-obsidian #r1 stop:nth-child(1){stop-color:#9aa0a6}.skin-obsidian #r1 stop:nth-child(2){stop-color:#2b2b30}.skin-obsidian #r1 stop:nth-child(3){stop-color:#f6b72c}
.skin-aurora #r1 stop:nth-child(1){stop-color:#c9fff1}.skin-aurora #r1 stop:nth-child(2){stop-color:#f6d32c}.skin-aurora #r1 stop:nth-child(3){stop-color:#7a3cff}
.skin-royal #r1 stop:nth-child(1){stop-color:#fffbe6}.skin-royal #r1 stop:nth-child(2){stop-color:#ffcf33}.skin-royal #r1 stop:nth-child(3){stop-color:#8a1c1c}
.skin-royal #rock{filter:drop-shadow(0 0 18px #ffcf33aa)}.skin-aurora #rock{filter:drop-shadow(0 0 16px #7a3cff66)}
/* ---- public gold reserve ---- */
.reserve-badge{display:inline-flex;align-items:center;gap:10px;margin-top:14px;padding:8px 14px;border:1px solid #6b4a12;border-radius:999px;background:#1a1206cc;color:#ffe9a8;text-decoration:none;font-size:.9rem}
.reserve-badge .dot{width:8px;height:8px;border-radius:50%;background:#ffc34d;box-shadow:0 0 8px #ffc34d}
.reserve-badge:hover{border-color:#ffc34d}.spark svg{display:block}