:root{--bg:#080810;--cyan:#0ff;--amber:#ffb800;--red:#f35;--mono:"Share Tech Mono", "Courier New", monospace}*{box-sizing:border-box;margin:0;padding:0}html,body{background:var(--bg);color:#e6f9ff;width:100%;height:100%;font-family:var(--mono);-webkit-user-select:none;user-select:none;overflow:hidden}#game{cursor:crosshair;width:100vw;height:100vh;display:block;position:fixed;inset:0}#hud{pointer-events:none;z-index:10;flex-direction:column;justify-content:space-between;padding:22px 28px;display:flex;position:fixed;inset:0}.hud-top,.hud-bottom{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:18px;display:flex}.hud-block{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#00141e8c;border:1px solid #00ffff59;flex-direction:column;min-width:160px;padding:8px 14px;display:flex}.hud-label{letter-spacing:3px;color:var(--amber);opacity:.85;font-size:10px}.hud-value{letter-spacing:2px;color:var(--cyan);text-shadow:0 0 8px #0ff9;font-size:16px}.health-wrap{flex-direction:column;gap:6px;min-width:240px;display:flex}.health-bar{background:#ff335526;border:1px solid #ff335580;width:240px;height:14px}.health-fill{background:linear-gradient(90deg, var(--red), var(--amber));width:100%;height:100%;transition:width .25s}.hud-hint{letter-spacing:2px;color:#e6f9ffb3;background:#00141e8c;border:1px solid #0ff3;padding:8px 14px;font-size:11px}#briefing{z-index:50;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#000000c7;justify-content:center;align-items:center;padding:40px 20px;display:flex;position:fixed;inset:0}#briefing.hidden{display:none}.briefing-panel{border:1px solid var(--cyan);background:linear-gradient(#0c1a22,#050a10);width:min(820px,100%);max-height:85vh;padding:24px 28px;overflow-y:auto;box-shadow:0 0 40px #00ffff40}.briefing-header{border-bottom:1px dashed #00ffff59;justify-content:space-between;align-items:center;margin-bottom:18px;padding-bottom:12px;display:flex}.stamp{color:var(--red);border:2px solid var(--red);letter-spacing:4px;padding:4px 10px;font-size:14px;font-weight:700;transform:rotate(-3deg)}#briefing-close{color:var(--amber);border:1px solid var(--amber);font-family:var(--mono);letter-spacing:2px;cursor:pointer;background:0 0;padding:6px 12px}#briefing-close:hover{background:var(--amber);color:#000}.briefing-body h1{color:var(--cyan);letter-spacing:4px;margin-bottom:6px;font-size:26px}.briefing-body h2{color:var(--amber);letter-spacing:3px;margin:18px 0 8px;font-size:14px}.briefing-body p{color:#cfeefb;margin-bottom:8px;font-size:14px;line-height:1.7}.briefing-body ul{padding-left:0;list-style:none}.briefing-body li{color:#cfeefb;border-bottom:1px dotted #00ffff26;padding:4px 0;font-size:14px}.briefing-body .stat-row{gap:24px;margin:14px 0;display:flex}.briefing-body .stat{text-align:center;border:1px solid #00ffff4d;flex:1;padding:10px}.briefing-body .stat .num{color:var(--amber);font-size:28px;display:block}.briefing-body .stat .lbl{letter-spacing:2px;color:var(--cyan);font-size:10px}