:root{
  --bg:#07190f;
  --panel:rgba(7,23,14,.70);
  --stroke:rgba(255,255,255,.14);
  --text:rgba(249,255,248,.98);
  --muted:rgba(220,245,221,.78);
  --gold:#ffd66f;
  --sun:#ffb347;
  --green:#74f2a8;
  --leaf:#1f8b54;
  --dark:#06130c;
  --river:#57d9ff;
  --red:#ff6b6b;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{height:100%}
body{
  margin:0;
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  color:var(--text);
  background:
    radial-gradient(circle at 16% 8%,rgba(116,242,168,.22),transparent 26%),
    radial-gradient(circle at 88% 14%,rgba(255,211,111,.14),transparent 24%),
    linear-gradient(180deg,#16391f 0%,#06130c 100%);
  overflow:hidden;
}
button{font:inherit;color:var(--text);cursor:pointer}
.game-shell{height:100%;display:grid;grid-template-rows:auto 1fr}
.topbar{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:10px 14px;background:rgba(5,17,10,.82);border-bottom:1px solid var(--stroke);backdrop-filter:blur(14px)
}
.brand{font-size:26px;font-weight:1000;letter-spacing:.2px;color:#fff8d8}
.tagline{font-size:13px;color:var(--muted);font-weight:800;margin-top:3px}
.hud-grid{display:grid;grid-template-columns:repeat(6,86px);gap:8px}
.hud-box{
  padding:7px 8px 9px;border-radius:15px;background:rgba(255,255,255,.06);border:1px solid var(--stroke);text-align:center
}
.hud-box span{display:block;font-size:10px;color:var(--muted);font-weight:900;text-transform:uppercase;letter-spacing:.35px}
.hud-box b{display:block;margin-top:3px;font-size:18px;font-weight:1000;color:#fff8d8}
.play-wrap{min-height:0;display:grid;grid-template-rows:1fr auto;gap:8px;padding:10px}
.canvas-shell{
  position:relative;min-height:0;border-radius:28px;overflow:hidden;background:#07190f;border:1px solid var(--stroke);
  box-shadow:0 32px 90px rgba(0,0,0,.38)
}
#gameCanvas{display:block;width:100%;height:100%;touch-action:none}
.floating-actions{
  position:absolute;right:14px;top:14px;z-index:6;display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end
}
.floating-actions button,.controls button,.action-row button{
  min-height:42px;border-radius:16px;border:1px solid var(--stroke);background:rgba(255,255,255,.075);padding:0 13px;font-weight:1000
}
.floating-actions button{font-size:12px;min-height:38px;background:rgba(7,23,14,.58);backdrop-filter:blur(10px)}
.floating-card{
  position:absolute;z-index:5;max-width:min(430px,46vw);padding:12px;border-radius:18px;background:rgba(7,23,14,.60);
  border:1px solid rgba(255,255,255,.14);backdrop-filter:blur(12px);box-shadow:0 18px 48px rgba(0,0,0,.25)
}
.mission-card{left:14px;top:14px}
.story-card{left:14px;bottom:14px;max-width:min(560px,56vw)}
.card-title{font-weight:1000;color:#fff8d8;margin-bottom:5px;font-size:13px;text-transform:uppercase;letter-spacing:.6px}
.floating-card p{margin:0;color:var(--muted);font-size:12px;font-weight:780;line-height:1.38}
#powerText{display:inline-block;margin-top:6px;color:#fff0b8;font-weight:900;font-size:12px}
.meter{height:10px;border-radius:999px;background:rgba(255,255,255,.10);overflow:hidden;margin:8px 0 4px}
.meter>div{height:100%;width:0;background:linear-gradient(90deg,var(--green),var(--gold),var(--sun));box-shadow:0 0 18px rgba(255,211,111,.44)}
.overlay{
  position:absolute;inset:0;display:none;align-items:center;justify-content:center;z-index:10;background:rgba(5,13,8,.64);backdrop-filter:blur(8px)
}
.overlay.active{display:flex}
.overlay-card{
  width:min(92%,860px);max-height:90vh;overflow:auto;padding:24px;border-radius:30px;background:rgba(7,22,13,.94);
  border:1px solid rgba(255,255,255,.14);box-shadow:0 30px 80px rgba(0,0,0,.45)
}
.overlay-card h1{margin:0;font-size:50px;color:#fff8d8}
.overlay-card h2{margin:0 0 10px;color:var(--green)}
.overlay-card p,.overlay-card li{color:var(--muted);font-weight:760;line-height:1.5}
.feature-row{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0}
.feature-row span{
  padding:8px 10px;border-radius:999px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);font-size:12px;font-weight:900
}
.action-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.action-row .primary,.controls button:nth-child(3),.controls button:nth-child(4){
  background:linear-gradient(135deg,var(--gold),var(--green));color:#06130c;border:0
}
.stars{font-size:34px;color:var(--gold);margin:10px 0 4px;letter-spacing:5px}
.controls{display:grid;grid-template-columns:repeat(6,1fr);gap:8px}
.controls button{background:rgba(7,23,14,.86)}
.cutscene-label{
  display:inline-block;padding:8px 12px;border-radius:999px;background:rgba(255,214,111,.12);
  border:1px solid rgba(255,214,111,.35);font-weight:1000;color:var(--gold);font-size:12px;margin-bottom:12px
}
.map-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:10px;margin-top:14px}
.map-node{
  padding:14px;border-radius:20px;border:1px solid rgba(255,255,255,.13);background:rgba(255,255,255,.06);text-align:left;min-height:96px
}
.map-node.unlocked{background:linear-gradient(135deg,rgba(116,242,168,.13),rgba(255,214,111,.10))}
.map-node.locked{opacity:.56;filter:grayscale(.25)}
.map-node strong{display:block;margin-bottom:5px;color:#fff8d8}
.map-node small{display:block;color:var(--muted);font-weight:780;line-height:1.35}
@media (max-width:980px){
  body{overflow:auto}
  .topbar{flex-direction:column;align-items:flex-start}
  .hud-grid{width:100%;grid-template-columns:repeat(3,1fr)}
  .canvas-shell{height:64vh}
  .floating-card{max-width:calc(100% - 28px)}
  .mission-card{left:10px;right:10px;top:10px}
  .story-card{left:10px;right:10px;bottom:10px}
  .floating-actions{right:10px;top:auto;bottom:88px}
}
@media (max-width:560px){
  .hud-grid{grid-template-columns:repeat(2,1fr)}
  .overlay-card h1{font-size:34px}
  .controls{grid-template-columns:repeat(3,1fr)}
  .brand{font-size:22px}
}