:root{
  --bg0:#05060f; --panel:rgba(18,21,44,.72); --line:rgba(255,255,255,.10);
  --text:#eef1ff; --muted:#aab0d8; --accent:#ff8a3d; --accent2:#27e0ff;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
[hidden]{display:none!important}
html,body{margin:0;height:100%;overflow:hidden;background:var(--bg0);color:var(--text);
  font-family:"Space Grotesk",system-ui,sans-serif;user-select:none;-webkit-user-select:none}
#bg{position:fixed;inset:0;width:100%;height:100%;display:block;z-index:0;touch-action:none}

.screen{position:fixed;inset:0;z-index:2;display:none;flex-direction:column}
.screen.active{display:flex}

/* top bar */
#topbar{position:fixed;top:14px;right:14px;z-index:6;display:flex;gap:10px;align-items:center}
.coins{display:inline-flex;align-items:center;gap:7px;background:rgba(10,12,28,.7);
  border:1px solid var(--line);border-radius:999px;padding:7px 14px;font-weight:700;
  font-variant-numeric:tabular-nums;backdrop-filter:blur(8px)}
.coin-dot{width:14px;height:14px;border-radius:50%;background:radial-gradient(circle at 35% 30%,#ffe9a8,#f5b324 60%,#b9810f);
  box-shadow:0 0 8px rgba(245,179,36,.6);flex:none}
.ghost-btn{background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text);
  font-family:"Space Grotesk";font-weight:600;font-size:.9rem;padding:8px 16px;border-radius:999px;cursor:pointer}
.ghost-btn:hover{border-color:rgba(124,140,255,.5)}

/* HOME */
.home-head{text-align:center;padding:64px 18px 18px}
.pd-title{font-family:"Orbitron";font-weight:900;letter-spacing:.06em;margin:0;
  font-size:clamp(2rem,7vw,3.6rem);
  background:linear-gradient(100deg,#fff,#ff8a3d 45%,#ff4d6d 70%,#b06bff);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 0 26px rgba(255,138,61,.4))}
.pd-sub{color:var(--muted);margin:10px 0 0;font-size:clamp(.95rem,2.6vw,1.2rem)}
.level-grid{flex:1;overflow-y:auto;display:grid;gap:14px;padding:18px;
  grid-template-columns:repeat(auto-fill,minmax(150px,1fr));max-width:1100px;margin:0 auto;width:100%}
.lvl-card{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:16px;
  padding:16px;cursor:pointer;backdrop-filter:blur(10px);transition:transform .2s,border-color .2s;overflow:hidden}
.lvl-card:hover{transform:translateY(-4px);border-color:rgba(255,138,61,.5)}
.lvl-card.locked{opacity:.5;cursor:not-allowed}
.lvl-card.locked:hover{transform:none;border-color:var(--line)}
.lvl-num{font-family:"Orbitron";font-size:.72rem;letter-spacing:.14em;color:var(--muted)}
.lvl-card h3{margin:4px 0 2px;font-size:1.05rem}
.lvl-mat{font-size:.74rem;text-transform:uppercase;letter-spacing:.1em;color:var(--accent2)}
.lvl-stars{margin-top:8px;font-size:.85rem;color:#ffd23d;letter-spacing:2px;min-height:1em}
.lvl-lock{position:absolute;top:12px;right:12px;color:var(--muted)}

/* GAME */
.game-top{position:fixed;top:0;left:0;right:0;z-index:5;display:flex;align-items:center;gap:12px;
  padding:14px 16px;padding-right:200px}
.lvl-info{display:flex;flex-direction:column;line-height:1.15}
.lvl-name{font-family:"Orbitron";font-weight:800;font-size:1.1rem}
.lvl-type{font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent2)}
.timer{margin-left:auto;font-variant-numeric:tabular-nums;color:var(--muted);font-weight:600}
.back{padding:7px 14px}

.hpwrap{position:fixed;top:62px;left:50%;transform:translateX(-50%);z-index:5;width:min(560px,86vw);text-align:center}
.hpbar{height:14px;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid var(--line);overflow:hidden}
.hpfill{height:100%;width:100%;border-radius:999px;
  background:linear-gradient(90deg,#ff4d6d,#ff8a3d);transition:width .08s linear}
.hptext{margin-top:5px;font-size:.8rem;color:var(--muted);font-variant-numeric:tabular-nums}

.hint{position:fixed;bottom:160px;left:50%;transform:translateX(-50%);z-index:4;
  color:var(--muted);font-size:.9rem;pointer-events:none;opacity:.9;transition:opacity .4s}

/* planet scan sidebar */
.stat-panel{position:fixed;left:16px;top:50%;transform:translateY(-50%);z-index:5;width:172px;
  background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:14px;
  backdrop-filter:blur(10px);display:flex;flex-direction:column;gap:10px;pointer-events:none}
.sp-head{font-family:"Orbitron";font-size:.62rem;letter-spacing:.2em;color:var(--muted)}
.sp-grade{display:flex;align-items:center;gap:10px}
.sp-grade-letter{font-family:"Orbitron";font-weight:900;font-size:2.1rem;line-height:1}
.sp-grade-why{font-size:.7rem;color:var(--muted);line-height:1.25}
.sp-row{display:flex;justify-content:space-between;align-items:baseline;gap:8px}
.sp-k{font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.sp-v{font-weight:700;font-variant-numeric:tabular-nums;font-size:.88rem}
.sp-pop{display:flex;flex-direction:column;gap:6px;border-top:1px solid var(--line);padding-top:10px}
.sp-pop-row{display:flex;align-items:center;gap:8px}
.sp-pop-row svg{flex:none}
.sp-nolife{font-size:.78rem;color:var(--muted);border-top:1px solid var(--line);padding-top:10px}
.sp-status{font-size:.74rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--accent)}
@media (max-width:900px){
  .stat-panel{width:140px;padding:11px;left:10px;gap:8px}
  .sp-grade-letter{font-size:1.7rem}
}
@media (max-width:560px){
  .stat-panel{top:auto;bottom:210px;transform:none;width:128px}
}

.weapon-dock{position:fixed;bottom:64px;left:0;right:0;z-index:5;display:flex;gap:10px;
  padding:10px 16px;overflow-x:auto;justify-content:center;scrollbar-width:none}
.weapon-dock::-webkit-scrollbar{display:none}
.wcard{flex:none;min-width:104px;background:var(--panel);border:1.5px solid var(--line);border-radius:14px;
  padding:10px 12px;cursor:pointer;backdrop-filter:blur(8px);transition:border-color .15s,transform .15s}
.wcard:hover{transform:translateY(-2px)}
.wcard.sel{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent),0 8px 24px rgba(255,138,61,.25)}
.wtier{font-size:.62rem;letter-spacing:.12em;text-transform:uppercase;font-weight:700}
.wname{font-size:.86rem;font-weight:600;margin:3px 0 1px;line-height:1.1}
.wdps{font-size:.72rem;color:var(--muted)}
.shop-open{position:fixed;bottom:16px;left:50%;transform:translateX(-50%);z-index:5;
  background:linear-gradient(135deg,#5b8cff,#27e0ff);color:#05060f;border:none;font-weight:700;
  font-family:"Space Grotesk";padding:11px 26px;border-radius:999px;cursor:pointer;font-size:.92rem}

/* overlays */
.overlay{position:fixed;inset:0;z-index:20;display:flex;align-items:center;justify-content:center;
  background:rgba(3,4,12,.72);backdrop-filter:blur(6px);padding:18px}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:30px;
  text-align:center;max-width:420px;width:100%;backdrop-filter:blur(16px);box-shadow:0 30px 80px rgba(0,0,0,.6)}
.panel.wide{max-width:680px;text-align:left;max-height:86vh;display:flex;flex-direction:column}
.panel h2{font-family:"Orbitron";font-weight:800;letter-spacing:.05em;margin:0 0 14px}
.stars{margin:6px 0 12px;min-height:1.2em}
.stars svg{width:38px;height:38px;margin:0 4px;vertical-align:middle;filter:drop-shadow(0 0 8px rgba(255,210,61,.5))}
.lvl-stars svg{width:15px;height:15px;margin-right:1px;vertical-align:middle}
.res-reward{color:var(--muted);margin:0 0 22px}
.panel-btns{display:flex;flex-direction:column;gap:10px;align-items:center}
.play-btn{background:linear-gradient(135deg,#ff8a3d,#ff4d6d);color:#fff;border:none;font-weight:700;
  font-family:"Space Grotesk";font-size:1rem;padding:13px 34px;border-radius:999px;cursor:pointer;
  box-shadow:0 10px 26px rgba(255,77,109,.4)}
.play-btn:hover{filter:brightness(1.07)}

.shop-head{display:flex;align-items:center;gap:14px;margin-bottom:16px}
.shop-head h2{margin:0;flex:1}
.shop-list{overflow-y:auto;display:flex;flex-direction:column;gap:18px;padding-right:6px}
.tier-group h4{font-family:"Orbitron";font-size:.8rem;letter-spacing:.14em;margin:0 0 8px;text-transform:uppercase}
.tier-items{display:grid;gap:8px;grid-template-columns:repeat(auto-fill,minmax(200px,1fr))}
.shop-item{display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.04);
  border:1px solid var(--line);border-radius:12px;padding:10px 12px}
.shop-item .si-info{flex:1;min-width:0}
.si-name{font-weight:600;font-size:.9rem}
.si-dps{font-size:.74rem;color:var(--muted)}
.buy-btn{flex:none;border:none;border-radius:999px;padding:7px 14px;font-weight:700;font-family:"Space Grotesk";
  font-size:.8rem;cursor:pointer;background:linear-gradient(135deg,#ffcf3d,#ff9d3d);color:#05060f}
.buy-btn:disabled{background:rgba(255,255,255,.08);color:var(--muted);cursor:default}
.buy-btn.owned{background:rgba(47,230,168,.16);color:#2fe6a8;border:1px solid rgba(47,230,168,.4)}

@media (max-width:560px){
  .game-top{padding-right:16px;padding-top:54px}
  #topbar{top:10px}
  .weapon-dock{justify-content:flex-start}
}