:root{
  --cyan:#38e8ff; --hot:#ff2e88; --amber:#ffb020; --good:#7dffb0;
  --bg:#03060a; --ink:#cbf6ff; --faint:#3f7c8c;
  --mono:"SF Mono",ui-monospace,"Cascadia Mono","JetBrains Mono",Menlo,Consolas,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%;overflow:hidden;background:var(--bg);color:var(--ink);font-family:var(--mono)}
body{-webkit-font-smoothing:antialiased;user-select:none}
canvas#gl{position:fixed;inset:0;width:100%;height:100%;display:block}
.hidden{display:none !important}

/* ---------- HUD ---------- */
#hud{position:fixed;inset:0;pointer-events:none}
#topbar{position:absolute;left:0;right:0;top:0;display:flex;justify-content:space-between;
  align-items:center;padding:13px 22px;font-size:12px;letter-spacing:.16em;text-transform:uppercase}
#t-map{color:var(--cyan);text-shadow:0 0 12px rgba(56,232,255,.7)}
#t-blurb{margin-left:14px;color:#2f5c68;letter-spacing:.08em;text-transform:none;font-size:11px}
.tb-right{display:flex;align-items:center;gap:22px}
.stat i{font-style:normal;color:var(--faint);font-size:10px;letter-spacing:.24em}
.stat b{font-weight:400;margin-left:6px;font-size:14px}
.lives{color:var(--good);text-shadow:0 0 12px rgba(125,255,176,.6)}
.lives.hurt{color:var(--hot);text-shadow:0 0 14px var(--hot)}
.credits{color:var(--amber);text-shadow:0 0 12px rgba(255,176,32,.6)}
.speeds{display:flex;gap:4px;pointer-events:auto}
.spd{font-family:var(--mono);font-size:10px;letter-spacing:.1em;padding:4px 8px;
  background:transparent;color:var(--faint);border:1px solid rgba(56,232,255,.2);cursor:pointer}
.spd:hover{color:var(--ink);border-color:var(--cyan)}
.spd.on{color:#03060a;background:var(--cyan);border-color:var(--cyan);
  box-shadow:0 0 14px rgba(56,232,255,.6)}

#panel{position:absolute;display:flex;flex-direction:column;gap:14px;pointer-events:auto}
.pblock{border-left:1px solid rgba(56,232,255,.22);padding-left:12px}
.pblock.grow{flex:1;border:0}
.plabel{font-size:9.5px;letter-spacing:.28em;color:var(--faint);margin-bottom:6px}
.pvalue{font-size:13px;letter-spacing:.1em}
.pvalue.small{font-size:11px;color:#8fc4d2;letter-spacing:.06em}
.lvl{color:var(--amber)}

/* tower palette */
#palette{display:flex;flex-direction:column;gap:5px}
.tw{display:flex;align-items:center;gap:8px;padding:6px 8px;cursor:pointer;
  border:1px solid rgba(56,232,255,.16);background:transparent;
  font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--ink);
  text-align:left;width:100%;transition:.12s}
.tw:hover{border-color:currentColor;background:rgba(56,232,255,.07)}
.tw.on{background:rgba(56,232,255,.14);border-color:currentColor;
  box-shadow:0 0 16px rgba(56,232,255,.25)}
.tw.broke{opacity:.4}
.tw .dot{width:9px;height:9px;flex:0 0 9px;background:currentColor;
  box-shadow:0 0 10px currentColor}
.tw .nm{flex:1}
.tw .ct{color:var(--amber);font-size:10px}
.tw .hk{color:var(--faint);font-size:9px;width:10px}

.statlines{font-size:10.5px;line-height:1.8;color:#8fc4d2;letter-spacing:.05em;margin:4px 0 8px}
.statlines i{font-style:normal;color:var(--faint);display:inline-block;width:56px}
.row{display:flex;gap:6px}
button.mini{flex:1;font-family:var(--mono);font-size:10px;letter-spacing:.12em;padding:7px 4px;
  background:transparent;color:var(--cyan);border:1px solid rgba(56,232,255,.35);cursor:pointer}
button.mini b{font-weight:400;color:var(--amber)}
button.mini:hover{background:rgba(56,232,255,.12);box-shadow:0 0 14px rgba(56,232,255,.3)}
button.mini:disabled{opacity:.35;cursor:not-allowed;box-shadow:none;background:transparent}
button.mini.ghost{color:#8fc4d2;border-color:rgba(143,196,210,.25)}
button.mini.wide-mini{width:100%;margin-top:6px;color:#8fc4d2;border-color:rgba(143,196,210,.25)}
button.mini.wide-mini b{color:var(--ink)}
.chip{white-space:nowrap}
button.wide{width:100%;font-family:var(--mono);font-size:11px;letter-spacing:.16em;padding:10px;
  margin-top:7px;background:transparent;color:var(--good);border:1px solid rgba(125,255,176,.4);cursor:pointer}
button.wide b{font-weight:400;color:var(--faint);margin-left:6px}
button.wide:hover{background:rgba(125,255,176,.12);box-shadow:0 0 18px rgba(125,255,176,.3)}
button.wide.live{color:var(--hot);border-color:rgba(255,46,136,.4)}

.tip{font-size:10.5px;line-height:1.7;color:#7ab0c0;letter-spacing:.03em;min-height:52px}
.keys{font-size:9.5px;line-height:1.9;color:#2f5c68;letter-spacing:.08em;margin-top:10px}
.keys b{color:var(--faint);font-weight:400}

#toast{position:absolute;left:50%;top:16%;transform:translateX(-50%);
  font-size:26px;letter-spacing:.28em;color:#fff;opacity:0;pointer-events:none;white-space:nowrap;
  text-shadow:0 0 26px var(--cyan),0 0 55px var(--cyan)}
#toast.pop{animation:toast 1.15s ease-out}
#toast.bad{text-shadow:0 0 26px var(--hot),0 0 55px var(--hot)}
@keyframes toast{
  0%{opacity:0;transform:translateX(-50%) scale(.86)}
  18%{opacity:1;transform:translateX(-50%) scale(1)}
  70%{opacity:1}100%{opacity:0;transform:translateX(-50%) scale(1.05)}
}

/* ---------- SCREENS ---------- */
.screen{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(ellipse at 50% 45%,rgba(4,14,20,.86),rgba(2,4,7,.97));
  backdrop-filter:blur(3px);z-index:10}
.wrap{text-align:center;max-width:540px;padding:30px;animation:fade .35s ease}
.wrap.wide{max-width:960px;width:92%}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.logo{font-size:72px;letter-spacing:.32em;font-weight:400;color:#fff;text-indent:.32em;
  text-shadow:0 0 8px var(--cyan),0 0 34px var(--cyan),0 0 80px rgba(56,232,255,.6)}
h2{font-size:23px;letter-spacing:.32em;font-weight:400;margin-bottom:14px;text-indent:.32em;
  text-shadow:0 0 24px rgba(56,232,255,.6)}
h2.bad{color:var(--hot);text-shadow:0 0 26px var(--hot)}
h2.good{color:var(--good);text-shadow:0 0 26px var(--good)}
h3{font-size:11px;letter-spacing:.24em;color:var(--cyan);margin:16px 0 6px}
.tag{font-size:11.5px;letter-spacing:.18em;color:#4d8494;margin-bottom:24px}
.tag span{color:var(--cyan)}
.foot{margin-top:24px;font-size:10px;letter-spacing:.16em;color:#33636f}
.foot span{color:var(--cyan)}
p{font-size:12px;line-height:1.85;color:#8fc4d2;letter-spacing:.03em;margin-bottom:8px}
p b{font-weight:400}
.help-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 40px;text-align:left;margin-bottom:16px}
.c-node{color:#5cf0ff}.c-arc{color:#8ba9ff}.c-pulse{color:#c49cff}
.c-rail{color:#ffbe4d}.c-damp{color:#5cf0c0}.c-tap{color:#ffe86b}

.menu{display:flex;flex-direction:column;gap:9px;align-items:center;margin-top:20px}
.screen button{pointer-events:auto;font-family:var(--mono);font-size:12px;letter-spacing:.24em;
  background:transparent;color:var(--ink);border:1px solid rgba(56,232,255,.32);
  padding:11px 40px;min-width:280px;cursor:pointer;transition:.14s;text-indent:.24em}
.screen button:hover,.screen button:focus{background:rgba(56,232,255,.11);border-color:var(--cyan);
  color:#fff;box-shadow:0 0 24px rgba(56,232,255,.34);outline:none}

/* ---------- MAP SELECT ---------- */
#map-list{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;pointer-events:auto}
.mapcard{border:1px solid rgba(56,232,255,.2);padding:13px 14px;text-align:left;cursor:pointer;
  transition:.12s;background:transparent}
.mapcard:hover{border-color:var(--cyan);background:rgba(56,232,255,.09);
  box-shadow:0 0 20px rgba(56,232,255,.25)}
.mapcard.locked{opacity:.3;cursor:not-allowed;pointer-events:none}
.mapcard h4{font-size:12px;letter-spacing:.2em;font-weight:400;color:var(--ink);margin-bottom:5px}
.mapcard .tier{font-size:9px;letter-spacing:.22em;color:var(--faint)}
.mapcard .best{font-size:9px;letter-spacing:.14em;color:var(--amber);margin-top:6px}
.mapcard .done{color:var(--good)}