:root{font-family:Trebuchet MS,Segoe UI,sans-serif;color:#f7f7f7;background:radial-gradient(circle at top,#1f3b55,#101820 55%)}html,body{margin:0;width:100%;height:100%;overflow:hidden}canvas{display:block}#hud{position:fixed;top:12px;left:12px;z-index:10;padding:8px 10px;border-radius:8px;background:#1018208c;border:1px solid rgba(255,255,255,.2);font-size:14px;letter-spacing:.4px}#interaction-prompt{position:fixed;left:50%;bottom:42px;transform:translate(-50%);z-index:12;padding:8px 12px;border-radius:10px;background:#050c12bd;border:1px solid rgba(255,255,255,.35);color:#fff;font-size:16px;font-weight:700;letter-spacing:.3px}#npc-speech-bubble{position:fixed;z-index:13;max-width:320px;padding:10px 12px;border-radius:12px;background:#ffffffeb;color:#0e1d2a;border:1px solid rgba(6,11,17,.25);box-shadow:0 8px 20px #00000038;font-size:14px;line-height:1.35;transform:translate(-50%,-130%);pointer-events:none}