:root{
  --bg:#0b0e17; --bg2:#12172a; --card:#171d33; --card2:#1e2542;
  --text:#f2f4ff; --muted:#9aa3c0; --gold:#f5b921; --gold2:#ffcf4d;
  --accent:#2ea6ff; --good:#37c978; --line:#262e4f;
}
*{box-sizing:border-box; -webkit-tap-highlight-color:transparent;}
html,body{margin:0;padding:0;}
body{
  background:radial-gradient(1200px 600px at 50% -10%, #1b2450 0%, var(--bg) 55%);
  color:var(--text);
  font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  min-height:100vh; padding-bottom:84px;
}
.app-header{
  position:sticky; top:0; z-index:20;
  display:flex; justify-content:space-between; align-items:center; gap:10px;
  padding:12px 14px; background:rgba(11,14,23,.92); backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.user-chip{display:flex; align-items:center; gap:10px; min-width:0;}
.avatar{width:40px;height:40px;border-radius:50%;object-fit:cover;flex:0 0 auto;}
.avatar-lg{width:56px;height:56px;font-size:22px;}
.avatar-fallback{display:flex;align-items:center;justify-content:center;background:var(--card2);color:var(--gold2);font-weight:800;font-size:18px;}
.user-name{font-weight:700; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; max-width:150px;}
.user-sub{color:var(--muted); font-size:12px;}
.balance-chip{display:flex;align-items:center;gap:6px;background:var(--card);border:1px solid var(--line);border-radius:999px;padding:8px 12px;font-weight:800;}
.coin-dot{color:var(--gold);}
.balance-chip-label{color:var(--muted);font-size:11px;font-weight:600;}
.app-main{max-width:520px;margin:0 auto;padding:14px;}
.tab-panel{display:none;}
.tab-panel.active{display:block;}
.panel-title{margin:4px 0 8px;font-size:22px;}
.muted{color:var(--muted);}
.small{font-size:13px;}
.card,.level-card,.energy-card{
  background:var(--card); border:1px solid var(--line); border-radius:16px; padding:14px; margin-bottom:12px;
}
.level-row,.stat-row{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:3px 0;}
.progress-track{background:#0d1122;border-radius:999px;height:10px;overflow:hidden;margin:8px 0;}
.progress-bar{background:linear-gradient(90deg,var(--accent),#7cc4ff);height:100%;border-radius:999px;transition:width .25s;}
.progress-bar.energy{background:linear-gradient(90deg,#ffb020,var(--gold2));}
.coin-area{position:relative;display:flex;justify-content:center;padding:22px 0 10px;}
.coin-button{
  width:230px;height:230px;border-radius:50%;border:none;cursor:pointer;
  background:radial-gradient(circle at 32% 28%, #ffe89a 0%, var(--gold2) 32%, var(--gold) 62%, #c07f0a 100%);
  box-shadow:0 18px 40px rgba(245,185,33,.28), inset 0 -10px 24px rgba(0,0,0,.22), inset 0 8px 18px rgba(255,255,255,.45);
  color:#5c3a00; display:flex;align-items:center;justify-content:center;
  transition:transform .06s;
}
.coin-button:active{transform:scale(.96);}
.coin-inner{display:flex;flex-direction:column;align-items:center;line-height:1;}
.coin-symbol{font-size:92px;font-weight:900;}
.coin-caption{font-size:16px;font-weight:800;letter-spacing:4px;margin-top:6px;}
.float-layer{position:absolute;inset:0;pointer-events:none;overflow:visible;}
.float-plus{position:absolute;font-weight:900;color:var(--gold2);font-size:24px;animation:floatUp 0.9s ease-out forwards;text-shadow:0 2px 8px rgba(0,0,0,.6);}
@keyframes floatUp{from{opacity:1;transform:translateY(0);}to{opacity:0;transform:translateY(-90px);}}
.ad-slot{border:1px dashed var(--line);border-radius:14px;padding:10px;margin:14px 0;background:rgba(255,255,255,.02);}
.ad-label{font-size:11px;letter-spacing:1.5px;text-transform:uppercase;color:var(--muted);text-align:center;margin-bottom:8px;}
.ad-content{min-height:52px;display:flex;align-items:center;justify-content:center;}
.ad-empty{color:var(--muted);font-size:13px;}
.notice{background:#241d08;border:1px solid #4a3a08;color:#ffd971;border-radius:12px;padding:11px 12px;font-size:13px;line-height:1.5;}
.task-list{display:flex;flex-direction:column;gap:10px;}
.task-card{display:flex;justify-content:space-between;gap:12px;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:13px;}
.task-special{border-color:#f5b301;background:linear-gradient(135deg,rgba(245,179,1,.16),rgba(245,179,1,.04));}
.task-info h3{margin:0 0 4px;font-size:16px;}
.task-info p{margin:0;color:var(--muted);font-size:13px;line-height:1.45;}
.task-side{display:flex;flex-direction:column;align-items:flex-end;justify-content:space-between;gap:8px;flex:0 0 auto;}
.task-reward{color:var(--gold2);font-weight:800;}
.task-btn,.primary-btn,.share-btn{
  border:none;border-radius:10px;padding:9px 14px;font-weight:700;cursor:pointer;
  background:var(--accent);color:#fff;font-size:14px;text-decoration:none;display:inline-block;text-align:center;
}
.task-btn:disabled{background:#39415f;color:var(--muted);cursor:default;}
.task-btn.done{background:var(--good);}
.quiz-options{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px;}
.quiz-option{background:var(--card2);color:var(--text);border:1px solid var(--line);border-radius:999px;padding:8px 13px;cursor:pointer;font-weight:600;}
.quiz-option.selected{border-color:var(--good);background:#143325;}
.field-label{display:block;font-size:13px;color:var(--muted);margin-bottom:8px;}
.referral-row{display:flex;gap:8px;}
.referral-input{flex:1;min-width:0;background:#0d1122;border:1px solid var(--line);border-radius:10px;color:var(--text);padding:10px;font-size:13px;}
.share-btn{margin-top:6px;background:var(--card2);border:1px solid var(--line);width:100%;}
.profile-card{display:flex;gap:14px;align-items:center;}
.subtabs{display:flex;gap:8px;margin:12px 0;}
.subtab-btn{flex:1;background:var(--card);color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:10px;font-weight:700;cursor:pointer;}
.subtab-btn.active{color:#111;background:var(--gold2);border-color:var(--gold2);}
.rank-pane{display:none;}
.rank-pane.active{display:block;}
.leaderboard-list{list-style:none;margin:0;padding:0;}
.leaderboard-list li{display:flex;justify-content:space-between;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:11px 12px;margin-bottom:8px;}
.empty-state{border:1px dashed var(--line);border-radius:14px;padding:16px;text-align:center;color:var(--muted);font-size:14px;line-height:1.5;}
.bottom-nav{
  position:fixed;left:0;right:0;bottom:0;z-index:30;
  display:flex;background:rgba(13,16,29,.97);border-top:1px solid var(--line);
  padding:8px 6px calc(8px + env(safe-area-inset-bottom));
}
.nav-btn{flex:1;background:none;border:none;color:var(--muted);display:flex;flex-direction:column;align-items:center;gap:2px;font-size:11px;font-weight:700;cursor:pointer;padding:6px 2px;border-radius:10px;}
.nav-btn.active{color:var(--gold2);}
.nav-icon{font-size:20px;}
.invite-banner{
  display:flex;justify-content:space-between;align-items:center;gap:10px;
  background:linear-gradient(135deg,rgba(245,185,33,.22),rgba(46,166,255,.14));
  border:1px solid var(--gold);border-radius:14px;padding:12px 14px;margin-bottom:12px;
  font-weight:700;font-size:15px;
}
.invite-banner[hidden]{display:none;}
.invite-banner-close{background:none;border:none;color:var(--muted);font-size:16px;cursor:pointer;padding:2px 6px;flex:0 0 auto;}
.ref-list{list-style:none;margin:8px 0 0;padding:0;}
.ref-list li{display:flex;justify-content:space-between;gap:10px;background:var(--card2);border:1px solid var(--line);border-radius:10px;padding:9px 11px;margin-bottom:7px;font-size:14px;}
.ref-list li .ref-date{color:var(--muted);font-size:12px;flex:0 0 auto;}
.toast{
  position:fixed;left:50%;bottom:96px;transform:translateX(-50%);z-index:50;
  background:#222a4a;color:var(--text);border:1px solid var(--line);border-radius:999px;
  padding:10px 16px;font-size:14px;font-weight:600;box-shadow:0 10px 30px rgba(0,0,0,.4);max-width:88vw;text-align:center;
}