@import"https://fonts.googleapis.com/css2?family=Orbitron:wght@500;700;900&family=Rajdhani:wght@500;700&display=swap";:root{--bg-1: #030713;--bg-2: #0d1027;--panel: rgba(9, 12, 24, .78);--panel-strong: rgba(14, 18, 36, .92);--line: rgba(127, 255, 233, .38);--accent: #72ffe3;--accent-2: #ff72c6;--text: #eff9ff;--muted: #a7bfd3;--shadow: 0 20px 60px rgba(0, 0, 0, .45)}*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:radial-gradient(circle at top,rgba(46,180,200,.18),transparent 28%),radial-gradient(circle at 80% 18%,rgba(255,78,173,.16),transparent 20%),linear-gradient(180deg,var(--bg-2),var(--bg-1) 48%,#02030b);color:var(--text);font-family:Rajdhani,sans-serif}body{display:grid;place-items:center;padding:16px}.app-shell{width:min(100%,1360px)}.game-frame{position:relative;border:1px solid rgba(116,255,228,.3);border-radius:28px;padding:18px;background:linear-gradient(180deg,rgba(10,14,29,.95),rgba(5,7,16,.95)),var(--panel);box-shadow:var(--shadow);overflow:hidden}.game-frame:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(circle at 20% 0%,rgba(94,255,214,.08),transparent 22%),radial-gradient(circle at 85% 100%,rgba(255,93,180,.08),transparent 20%);pointer-events:none}#game-canvas{display:block;width:100%;height:auto;aspect-ratio:16 / 9;border-radius:18px;background:#050916;box-shadow:inset 0 0 0 1px #ffffff0d}.hud-overlay{position:absolute;inset:30px 30px auto 30px;display:flex;justify-content:space-between;align-items:flex-start;gap:16px;pointer-events:none}.title-badge,.control-panel{padding:14px 16px;background:var(--panel);border:1px solid rgba(114,255,227,.22);border-radius:18px;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.title-badge h1{margin:4px 0 0;font-family:Orbitron,sans-serif;font-size:clamp(20px,2.6vw,34px);line-height:1;letter-spacing:.08em}.eyebrow{font-family:Orbitron,sans-serif;font-size:11px;letter-spacing:.22em;color:var(--accent)}.control-panel{min-width:min(340px,42vw);pointer-events:auto}.control-panel p{margin:0 0 10px;color:var(--muted);font-size:18px}.button-row{display:flex;gap:10px}button{border:0;border-radius:999px;padding:10px 18px;font-family:Orbitron,sans-serif;font-size:13px;letter-spacing:.08em;color:#07111e;background:linear-gradient(135deg,var(--accent),#b9fff6);cursor:pointer;transition:transform .12s ease,box-shadow .12s ease,opacity .12s ease;box-shadow:0 10px 24px #72ffe340}button:hover{transform:translateY(-1px)}button:active{transform:translateY(1px)}#restart-btn{background:linear-gradient(135deg,#ff84cd,#ffd2ea);box-shadow:0 10px 24px #ff72c640}.upgrade-overlay{position:absolute;top:0;right:0;bottom:0;left:0;z-index:5;display:grid;place-items:center;padding:28px;background:rgba(5,8,16,.68);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.upgrade-overlay[hidden]{display:none;pointer-events:none}.upgrade-panel{width:min(980px,100%);border-radius:28px;border:1px solid rgba(114,255,227,.24);background:linear-gradient(180deg,rgba(10,14,29,.97),rgba(8,10,22,.97));padding:26px;box-shadow:var(--shadow)}.upgrade-panel h2{margin:0;font-family:Orbitron,sans-serif;font-size:28px;letter-spacing:.08em}.upgrade-panel p{margin:6px 0 20px;color:var(--muted);font-size:18px}.upgrade-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.upgrade-card{display:flex;flex-direction:column;gap:14px;padding:20px;border-radius:22px;border:1px solid rgba(114,255,227,.18);background:linear-gradient(180deg,rgba(15,22,38,.95),rgba(10,14,27,.95)),var(--panel-strong);text-align:left;color:var(--text);min-height:220px}.upgrade-card-header{display:flex;align-items:flex-start;gap:14px}.upgrade-card-copy{display:grid;gap:8px}.upgrade-icon{display:inline-grid;place-items:center;width:52px;height:52px;border-radius:16px;border:1px solid rgba(255,255,255,.14);background:var(--icon-background);box-shadow:inset 0 0 0 1px #ffffff0a,0 0 18px #72ffe314}.upgrade-icon svg{display:block;width:34px;height:34px;overflow:visible}.upgrade-card.rare{border-color:#ff72c657;box-shadow:inset 0 0 0 1px #ff72c61a}.upgrade-card .tag{display:inline-flex;align-items:center;margin-bottom:14px;border-radius:999px;padding:5px 10px;background:rgba(114,255,227,.12);color:var(--accent);font-family:Orbitron,sans-serif;font-size:11px;letter-spacing:.14em}.upgrade-card.rare .tag{background:rgba(255,114,198,.12);color:var(--accent-2)}.upgrade-card h3{margin:0 0 10px;font-size:24px}.upgrade-card span{display:block;color:var(--muted);font-size:16px}.upgrade-prompt{margin-top:auto;color:#d8f9ff;font-family:Orbitron,sans-serif;font-size:12px;letter-spacing:.08em}@media (max-width: 960px){body{padding:8px}.game-frame{padding:10px;border-radius:20px}.hud-overlay{position:static;margin-bottom:12px;flex-direction:column}.upgrade-grid{grid-template-columns:1fr}}