:root{--green: #00ff88;--bg: #060a0f;--panel: rgba(10, 25, 40, .95);--text: #c8e6c9;--border: rgba(0, 255, 136, .2)}*{box-sizing:border-box}html,body,#root{width:100%;min-height:100%;height:auto;margin:0}body{background:radial-gradient(circle at 50% 30%,#0a2a1a 0%,var(--bg) 75%);color:var(--text);font-family:"Exo 2",sans-serif}.app-shell{min-height:100vh;display:flex;flex-direction:column}.app-header{border-bottom:1px solid var(--border);background:var(--panel);padding:10px 16px}.app-header h1{margin:0;color:var(--green);font-size:18px;letter-spacing:3px}.app-header p{margin:6px 0 0;font-size:12px;opacity:.85}.hud-btn{display:inline-block;border:1px solid var(--border);background:#00ff881f;color:var(--text);text-decoration:none;font-size:12px;padding:8px 12px;letter-spacing:1px}.hud-btn:hover{border-color:var(--green);color:var(--green)}.game-wrap{margin:10px 16px 16px;border:1px solid var(--border);background:var(--panel);display:grid;grid-template-rows:auto 1fr;height:min(980px,75vh);min-height:560px}.frame-label{font-size:10px;letter-spacing:2px;color:var(--green);padding:8px 10px;border-bottom:1px solid var(--border)}.game-frame{width:100%;height:100%;border:0;display:block;background:#060a0f}@media (max-width: 900px){.game-wrap{height:min(860px,70vh);min-height:500px}}