:root{
  --bg:#0a1622;
  --bg-deep:#050d18;
  --panel:rgba(20,34,54,0.92);
  --panel-solid:#142236;
  --panel2:#1a2c44;
  --panel-hover:#213a5c;
  --accent:#e8b84a;
  --accent-glow:rgba(232,184,74,0.4);
  --accent2:#4ae88a;
  --danger:#e85a4a;
  --text:#e0e8f0;
  --muted:#7a8898;
  --border:rgba(255,255,255,0.08);
  --border-bright:rgba(255,255,255,0.16);
  --radius:10px;
  --radius-sm:7px;
  --shadow:0 4px 20px rgba(0,0,0,0.4);
  --shadow-lg:0 8px 40px rgba(0,0,0,0.6);
  --ease:cubic-bezier(0.22,0.61,0.36,1);
  color-scheme:dark;
}
html[data-theme="light"]{
  --bg:#b8c8d8;
  --bg-deep:#90a0b0;
  --panel:rgba(232,240,248,0.95);
  --panel-solid:#e8eef4;
  --panel2:#d8e0e8;
  --panel-hover:#c8d4e0;
  --accent:#b8860b;
  --accent-glow:rgba(184,134,11,0.3);
  --accent2:#2a8a4a;
  --danger:#c43a2a;
  --text:#1a2438;
  --muted:#5a6878;
  --border:rgba(0,0,0,0.1);
  --border-bright:rgba(0,0,0,0.18);
  --shadow:0 4px 20px rgba(0,0,0,0.15);
  --shadow-lg:0 8px 40px rgba(0,0,0,0.25);
  color-scheme:light;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;height:100%;overflow:hidden;}
body{
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg); color:var(--text);
  touch-action:manipulation;
  -webkit-user-select:none; user-select:none;
  -webkit-tap-highlight-color:transparent;
}
#app{position:fixed;inset:0;}
#game{position:absolute;inset:0;display:block;touch-action:none;}

#hud{position:absolute;inset:0;pointer-events:none;}
#hud > *{pointer-events:auto;}

/* ===== Top bar ===== */
#top{
  position:absolute;top:0;left:0;right:0;
  display:flex;justify-content:space-between;align-items:flex-start;
  padding:12px 14px;gap:10px;
}
.topleft{display:flex;gap:8px;flex-wrap:wrap;}
.topright{display:flex;flex-direction:column;align-items:flex-end;gap:5px;}
.badge{
  background:var(--panel);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  padding:7px 12px;font-size:13px;font-weight:600;
  display:flex;align-items:center;gap:7px;
  box-shadow:var(--shadow);
  letter-spacing:0.01em;
}
.badge.score{color:var(--muted);font-variant-numeric:tabular-nums;}
.coinbadge{color:var(--accent);font-variant-numeric:tabular-nums;}
.coin-ic{
  width:15px;height:15px;border-radius:50%;
  background:radial-gradient(circle at 35% 35%,#fff8d0,#e8b84a 55%,#a8780a);
  display:inline-block;
  box-shadow:0 0 8px rgba(232,184,74,0.5),inset 0 -1px 2px rgba(0,0,0,0.2);
  animation:coinPulse 2.5s ease-in-out infinite;
}
@keyframes coinPulse{
  0%,100%{box-shadow:0 0 8px rgba(232,184,74,0.5),inset 0 -1px 2px rgba(0,0,0,0.2);}
  50%{box-shadow:0 0 14px rgba(232,184,74,0.7),inset 0 -1px 2px rgba(0,0,0,0.2);}
}
.townlabel{
  font-size:10px;color:var(--muted);font-weight:700;
  text-transform:uppercase;letter-spacing:0.1em;
}
.townbar{
  position:relative;width:150px;height:20px;
  background:var(--panel);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid var(--border);
  border-radius:10px;overflow:hidden;
  box-shadow:var(--shadow);
}
.townfill{
  height:100%;width:100%;
  background:linear-gradient(90deg,#e85a4a 0%,#e8b84a 40%,#4ae88a 100%);
  transition:width 0.35s var(--ease);
  position:relative;
}
.townfill::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(255,255,255,0.25),transparent 50%);
}
.townbar.critical{
  animation:critPulse 0.8s ease-in-out infinite;
}
@keyframes critPulse{
  0%,100%{box-shadow:var(--shadow),0 0 0 rgba(232,90,74,0);}
  50%{box-shadow:var(--shadow),0 0 16px rgba(232,90,74,0.6);}
}
#townPct{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-size:11px;font-weight:700;color:#fff;
  text-shadow:0 1px 3px rgba(0,0,0,0.7);
  font-variant-numeric:tabular-nums;
}

/* ===== Wave label ===== */
#wavelabel{
  position:absolute;top:56px;left:50%;transform:translateX(-50%);
  font-size:15px;font-weight:800;color:var(--accent);
  text-shadow:0 2px 8px rgba(0,0,0,0.7),0 0 20px var(--accent-glow);
  letter-spacing:0.08em;text-transform:uppercase;
  pointer-events:none;white-space:nowrap;
}
#wavelabel.wave-enter{
  animation:waveEnter 0.6s var(--ease);
}
@keyframes waveEnter{
  0%{opacity:0;transform:translateX(-50%) translateY(-12px) scale(0.9);letter-spacing:0.2em;}
  100%{opacity:1;transform:translateX(-50%) translateY(0) scale(1);letter-spacing:0.08em;}
}

/* ===== Effect tags ===== */
#effectbar{
  position:absolute;top:82px;left:50%;transform:translateX(-50%);
  display:flex;gap:6px;flex-wrap:wrap;justify-content:center;
  max-width:90vw;
}
.efftag{
  background:rgba(72,232,232,0.15);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  border:1px solid rgba(72,232,232,0.45);
  color:#7ce8e8;border-radius:6px;
  padding:4px 10px;font-size:11px;font-weight:600;
  letter-spacing:0.03em;
  animation:tagIn 0.3s var(--ease);
}
@keyframes tagIn{
  from{opacity:0;transform:scale(0.8);}
  to{opacity:1;transform:scale(1);}
}
.efftag.chaos{
  background:rgba(232,74,232,0.15);
  border-color:rgba(232,74,232,0.45);
  color:#e84ae8;
}

/* ===== Powerups ===== */
#powerups{
  position:absolute;right:10px;top:100px;
  display:flex;flex-direction:column;gap:7px;
  max-height:calc(100vh - 240px);overflow-y:auto;
  scrollbar-width:thin;scrollbar-color:var(--accent) transparent;
}
#powerups::-webkit-scrollbar{width:4px;}
#powerups::-webkit-scrollbar-thumb{background:var(--accent);border-radius:2px;}
.pup{
  background:var(--panel);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid var(--border);
  border-radius:var(--radius);padding:8px 12px;cursor:pointer;
  display:flex;flex-direction:column;align-items:center;gap:3px;
  min-width:78px;color:var(--text);font-family:inherit;
  transition:transform 0.15s var(--ease),background 0.15s,border-color 0.15s,box-shadow 0.15s;
  box-shadow:var(--shadow);
}
.pup:hover{
  background:var(--panel-hover);
  border-color:var(--accent);
  transform:translateY(-2px);
  box-shadow:0 6px 24px rgba(0,0,0,0.4),0 0 12px var(--accent-glow);
}
.pup:active{transform:scale(0.95);}
.pup.disabled{opacity:0.4;cursor:not-allowed;}
.pup.disabled:hover{transform:none;border-color:var(--border);box-shadow:var(--shadow);}
.pname{font-size:10px;font-weight:700;text-align:center;line-height:1.15;letter-spacing:0.02em;}
.pcost{
  font-size:13px;font-weight:800;color:var(--accent);
  font-variant-numeric:tabular-nums;
}

/* ===== Weapons bar ===== */
#weapons{
  position:absolute;bottom:0;left:0;right:0;
  display:flex;gap:7px;padding:10px 10px 12px;
  overflow-x:auto;overflow-y:hidden;
  background:linear-gradient(transparent,rgba(0,0,0,0.55) 40%,rgba(0,0,0,0.7));
  scrollbar-width:thin;scrollbar-color:var(--accent) transparent;
}
#weapons::-webkit-scrollbar{height:5px;}
#weapons::-webkit-scrollbar-track{background:transparent;}
#weapons::-webkit-scrollbar-thumb{background:var(--accent);border-radius:3px;}
.weapon{
  flex:0 0 auto;min-width:88px;
  background:var(--panel);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:2px solid var(--border);
  border-radius:var(--radius);padding:8px 10px;cursor:pointer;
  display:flex;flex-direction:column;align-items:center;gap:3px;
  transition:transform 0.15s var(--ease),border-color 0.15s,background 0.15s,box-shadow 0.2s;
  position:relative;
}
.weapon:hover{
  background:var(--panel-hover);
  transform:translateY(-3px);
  border-color:var(--border-bright);
}
.weapon:active{transform:scale(0.95);}
.weapon.selected{
  border-color:var(--accent);
  background:var(--panel-hover);
  box-shadow:0 0 16px var(--accent-glow),0 4px 16px rgba(0,0,0,0.3);
}
.weapon.selected::before{
  content:'';position:absolute;top:-2px;left:50%;transform:translateX(-50%);
  width:24px;height:3px;background:var(--accent);
  border-radius:0 0 4px 4px;
  box-shadow:0 0 8px var(--accent-glow);
}
.weapon.disabled{opacity:0.42;}
.wnum{
  position:absolute;top:4px;right:5px;
  font-size:9px;font-weight:700;color:var(--muted);
  opacity:0.6;
}
.wname{font-size:10px;font-weight:700;text-align:center;line-height:1.15;letter-spacing:0.01em;}
.wcost{
  font-size:12px;font-weight:800;color:var(--accent);
  font-variant-numeric:tabular-nums;
}
.weapon.selected .wcost{color:var(--accent2);}

/* ===== Aim hint ===== */
#aimhint{
  position:absolute;bottom:78px;left:50%;transform:translateX(-50%);
  font-size:11px;color:var(--muted);pointer-events:none;
  background:rgba(0,0,0,0.5);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  padding:4px 14px;border-radius:12px;
  white-space:nowrap;letter-spacing:0.03em;
  border:1px solid var(--border);
  animation:hintFade 4s ease-in-out infinite;
}
@keyframes hintFade{
  0%,100%{opacity:0.5;}
  50%{opacity:0.9;}
}

/* ===== Overlay ===== */
#overlay{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  background:rgba(5,10,18,0.88);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}
#overlay.hidden{display:none;}
#overlay.overlay-in{animation:overlayIn 0.4s var(--ease);}
@keyframes overlayIn{
  from{opacity:0;}
  to{opacity:1;}
}
.ocard{
  background:var(--panel-solid);
  border:1px solid var(--border-bright);
  border-radius:20px;padding:40px 44px;text-align:center;
  max-width:400px;
  box-shadow:var(--shadow-lg);
  position:relative;overflow:hidden;
  animation:cardIn 0.5s var(--ease);
}
@keyframes cardIn{
  from{opacity:0;transform:scale(0.9) translateY(20px);}
  to{opacity:1;transform:scale(1) translateY(0);}
}
.ocard-glow{
  position:absolute;top:-60%;left:-20%;width:140%;height:80%;
  background:radial-gradient(ellipse at center,var(--accent-glow),transparent 60%);
  opacity:0.5;pointer-events:none;
}
.ocard h2{
  margin:0 0 14px;font-size:30px;color:var(--accent);
  text-shadow:0 0 24px var(--accent-glow);
  letter-spacing:0.02em;position:relative;
}
.ocard p{
  margin:0 0 24px;color:var(--text);line-height:1.55;font-size:15px;
  position:relative;
}
.ocard button{
  background:linear-gradient(135deg,var(--accent),#d4a838);
  color:#1a1208;border:none;
  border-radius:12px;padding:13px 32px;font-size:16px;font-weight:800;
  cursor:pointer;font-family:inherit;position:relative;
  transition:transform 0.15s var(--ease),box-shadow 0.2s;
  box-shadow:0 4px 16px var(--accent-glow);
  letter-spacing:0.02em;
}
.ocard button:hover{
  transform:translateY(-2px);
  box-shadow:0 8px 28px var(--accent-glow);
}
.ocard button:active{transform:scale(0.96);}

/* ===== Responsive ===== */
@media (max-width:480px){
  #top{padding:8px 10px;}
  .badge{font-size:11px;padding:5px 9px;gap:5px;}
  .coin-ic{width:13px;height:13px;}
  .townbar{width:110px;height:18px;}
  .townlabel{font-size:9px;}
  #powerups{right:5px;top:88px;gap:5px;}
  .pup{min-width:62px;padding:6px 8px;}
  .pname{font-size:9px;}
  .pcost{font-size:11px;}
  .weapon{min-width:74px;padding:6px 8px;}
  .wnum{font-size:8px;}
  .wname{font-size:9px;}
  .wcost{font-size:11px;}
  #wavelabel{font-size:12px;top:48px;}
  #effectbar{top:72px;}
  .efftag{font-size:10px;padding:3px 7px;}
  #aimhint{font-size:10px;bottom:72px;padding:3px 10px;}
  .ocard{padding:28px 28px;margin:16px;}
  .ocard h2{font-size:24px;}
  .ocard p{font-size:13px;}
}
@media (orientation:landscape) and (max-height:480px){
  #powerups{top:64px;max-height:calc(100vh - 160px);}
  #wavelabel{top:46px;font-size:12px;}
  #effectbar{top:66px;}
  #weapons{padding-bottom:6px;}
  #aimhint{bottom:64px;}
}
@media (max-width:360px){
  .badge{font-size:10px;padding:4px 7px;}
  .townbar{width:90px;}
  .weapon{min-width:66px;gap:2px;}
  .pup{min-width:56px;}
}