/* ============================================================
   低模战场 · BLOCK BLASTER — HUD / 菜单样式
   风格：低多边形游戏 UI，硬边、粗描边、等宽字
   ============================================================ */
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
:root{
  --ink:#0e1116;
  --paper:#f2efe6;
  --acc:#ff8a3d;      /* 橙：主强调 */
  --acc2:#3ddc97;     /* 绿：生命 */
  --red:#ff4d4d;
  --blue:#4aa8ff;
  --gold:#ffd23f;
  --panel:rgba(14,17,22,.72);
  --stroke:3px solid var(--ink);
  --mono:"SF Mono",ui-monospace,"Cascadia Mono",Consolas,monospace;
}
html,body{width:100%;height:100%;overflow:hidden;background:#0b0d11}
body{
  font-family:var(--mono);
  color:var(--paper);
  user-select:none;
  -webkit-user-select:none;
}
#stage{position:fixed;inset:0}
#cv{display:block;width:100%;height:100%}
.hide{display:none!important}

/* ---------------- 通用按钮 ---------------- */
button{
  font-family:var(--mono);
  cursor:pointer;
  border:var(--stroke);
  border-radius:0;
  padding:14px 30px;
  font-size:17px;
  font-weight:800;
  letter-spacing:2px;
  color:var(--ink);
  background:var(--acc);
  box-shadow:5px 5px 0 var(--ink);
  transition:transform .08s ease, box-shadow .08s ease, filter .12s ease;
}
button:hover{filter:brightness(1.08)}
button:active{transform:translate(4px,4px);box-shadow:1px 1px 0 var(--ink)}
button.ghost{background:transparent;color:var(--paper);border-color:var(--paper);box-shadow:5px 5px 0 rgba(0,0,0,.5)}
button.ghost:active{box-shadow:1px 1px 0 rgba(0,0,0,.5)}

/* ---------------- 菜单 ---------------- */
#menu,#pause,#over{
  position:absolute;inset:0;z-index:40;
  display:flex;align-items:center;justify-content:center;
  padding:20px;
  background:
    radial-gradient(circle at 50% 38%,rgba(255,138,61,.16),transparent 62%),
    linear-gradient(rgba(8,10,14,.9),rgba(8,10,14,.96));
  overflow-y:auto;
}
.m-box,.p-box,.o-box{
  width:100%;max-width:720px;text-align:center;
  padding:34px 30px 30px;
  background:rgba(16,20,27,.86);
  border:var(--stroke);
  box-shadow:10px 10px 0 rgba(0,0,0,.6);
}
.m-badge{
  display:inline-block;padding:5px 12px;margin-bottom:14px;
  font-size:11px;letter-spacing:3px;font-weight:700;
  color:var(--ink);background:var(--gold);
  border:2px solid var(--ink);
}
#menu h1{
  font-size:clamp(38px,8vw,62px);
  line-height:1;letter-spacing:6px;font-weight:900;
  color:var(--acc);
  text-shadow:4px 4px 0 var(--ink);
}
.m-sub{margin-top:10px;font-size:12px;letter-spacing:3px;opacity:.66}
.m-cols{
  display:grid;grid-template-columns:1fr 1fr;gap:22px;
  margin:26px 0 24px;text-align:left;
}
@media(max-width:620px){.m-cols{grid-template-columns:1fr;gap:16px}}
.m-cols h3{
  font-size:12px;letter-spacing:2px;color:var(--gold);
  margin-bottom:9px;padding-bottom:5px;
  border-bottom:2px solid rgba(255,210,63,.3);
}
ul.keys,ul.feat{list-style:none;font-size:12.5px;line-height:2}
ul.keys li{display:flex;align-items:center;gap:5px;flex-wrap:wrap}
ul.keys li span{margin-left:auto;font-size:11px;opacity:.5}
ul.feat li{padding-left:14px;position:relative;opacity:.86}
ul.feat li:before{content:"▸";position:absolute;left:0;color:var(--acc2)}
kbd{
  display:inline-block;min-width:22px;padding:2px 7px;
  font-family:var(--mono);font-size:11px;font-weight:700;
  text-align:center;color:var(--ink);background:var(--paper);
  border:2px solid var(--ink);
}
.tip{font-size:12.5px;line-height:1.85;opacity:.86}
.tip b{color:var(--acc)}
.mob{
  margin-top:12px;padding:9px 11px;font-size:11.5px;line-height:1.7;
  background:rgba(74,168,255,.1);border-left:3px solid var(--blue);
}
.m-foot{margin-top:16px;font-size:10.5px;letter-spacing:2px;opacity:.4}

/* 暂停 / 结束 */
.p-box,.o-box{max-width:460px}
#pause h2,#over h2{
  font-size:34px;letter-spacing:5px;font-weight:900;
  color:var(--acc);text-shadow:3px 3px 0 var(--ink);margin-bottom:20px;
}
.p-box button,.o-box button{width:100%;margin-top:10px}
.o-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:20px;
}
.o-stats div{
  padding:12px 4px;background:rgba(255,255,255,.05);border:2px solid rgba(255,255,255,.12);
}
.o-stats b{display:block;font-size:22px;color:var(--gold);line-height:1.2}
.o-stats span{font-size:10px;letter-spacing:1px;opacity:.55}

/* ---------------- 顶部 chip ---------------- */
#hud{position:absolute;inset:0;z-index:20;pointer-events:none}
.hud-top{position:absolute;top:14px;left:50%;transform:translateX(-50%);display:flex;gap:10px}
.chip{
  display:flex;align-items:center;gap:7px;
  padding:6px 14px;background:var(--panel);
  border:2px solid rgba(255,255,255,.2);
  border-left:4px solid var(--acc);
}
.chip .lbl{font-size:9.5px;letter-spacing:2px;opacity:.6}
.chip b{font-size:19px;font-weight:900;line-height:1}
.chip.kills{border-left-color:var(--red)}
.chip.kills b{color:var(--red)}
.chip.wave b{color:var(--gold)}

/* ---------------- 准星 ---------------- */
#cross{position:absolute;left:50%;top:50%;width:26px;height:26px;transform:translate(-50%,-50%);transition:transform .07s ease-out}
#cross i{position:absolute;background:#fff;box-shadow:0 0 3px rgba(0,0,0,.9)}
.c-t{left:50%;top:0;width:2px;height:7px;margin-left:-1px}
.c-b{left:50%;bottom:0;width:2px;height:7px;margin-left:-1px}
.c-l{top:50%;left:0;height:2px;width:7px;margin-top:-1px}
.c-r{top:50%;right:0;height:2px;width:7px;margin-top:-1px}
.c-dot{left:50%;top:50%;width:2px;height:2px;margin:-1px 0 0 -1px;opacity:.85}
#cross.hot i{background:var(--red)}

#hitmark{position:absolute;left:50%;top:50%;width:30px;height:30px;transform:translate(-50%,-50%) rotate(45deg);opacity:0}
#hitmark i{position:absolute;background:#fff;width:2px;height:9px}
#hitmark i:nth-child(1){left:14px;top:0}
#hitmark i:nth-child(2){left:14px;bottom:0}
#hitmark i:nth-child(3){top:14px;left:0;width:9px;height:2px}
#hitmark i:nth-child(4){top:14px;right:0;width:9px;height:2px}
#hitmark.on{animation:hm .22s ease-out}
#hitmark.kill i{background:var(--red);width:3px;height:11px}
@keyframes hm{
  0%{opacity:1;transform:translate(-50%,-50%) rotate(45deg) scale(.55)}
  100%{opacity:0;transform:translate(-50%,-50%) rotate(45deg) scale(1.5)}
}

/* ---------------- 左下：血量 + 弹药 ---------------- */
.hud-bl{position:absolute;left:22px;bottom:22px}
.hp-wrap{display:flex;align-items:center;gap:11px}
.hp-bar{
  position:relative;width:190px;height:16px;
  background:rgba(0,0,0,.55);
  border:2px solid rgba(255,255,255,.28);
  overflow:hidden;
}
.hp-bar i{
  position:absolute;inset:0;width:100%;
  background:linear-gradient(90deg,#2fbf71,#61e39b);
  transform-origin:left;transition:transform .16s ease-out;
}
.hp-bar u{
  position:absolute;inset:0;width:100%;
  background:rgba(255,77,77,.55);
  transform-origin:left;z-index:-1;
}
.hp-bar i{z-index:1}
.hp-num{display:flex;align-items:baseline;gap:3px}
.hp-num b{font-size:25px;font-weight:900;color:var(--acc2);line-height:1}
.hp-num span{font-size:9px;opacity:.55;letter-spacing:1px}
.hp-wrap.low .hp-num b{color:var(--red)}

/* 换波次回血：血条闪一下绿，告诉玩家"补满了" */
.hp-wrap.healed .hp-bar{animation:healGlow .85s ease-out}
.hp-wrap.healed .hp-num b{color:#fff;animation:healNum .85s ease-out}
@keyframes healGlow{
  0%{box-shadow:0 0 0 0 rgba(97,227,155,.95);border-color:rgba(97,227,155,1)}
  100%{box-shadow:0 0 0 16px rgba(97,227,155,0);border-color:rgba(255,255,255,.28)}
}
@keyframes healNum{
  0%{transform:scale(1.45);text-shadow:0 0 12px rgba(97,227,155,.9)}
  100%{transform:scale(1);text-shadow:none}
}

.ammo-row{margin-top:9px;display:flex;align-items:flex-end;gap:11px}
.ammo-box{display:flex;align-items:baseline;gap:2px}
.a-cur{font-size:32px;font-weight:900;line-height:1;color:var(--paper);text-shadow:2px 2px 0 rgba(0,0,0,.7)}
.a-slash{font-size:17px;opacity:.4;margin:0 1px}
.a-res{font-size:15px;opacity:.65}
.ammo-box.empty .a-cur{color:var(--red);animation:blink .45s steps(2) infinite}
@keyframes blink{50%{opacity:.3}}
.mag-pips{display:flex;gap:2px;padding-bottom:4px}
.mag-pips i{width:3px;height:11px;background:var(--gold);opacity:.9}
.mag-pips i.off{background:rgba(255,255,255,.16)}

/* ---------------- 击杀提示流 ---------------- */
#killfeed{
  position:absolute;right:22px;top:66px;
  display:flex;flex-direction:column;align-items:flex-end;gap:5px;
}
.kf{
  padding:5px 11px;font-size:11.5px;font-weight:700;letter-spacing:1px;
  background:var(--panel);border-right:3px solid var(--red);
  animation:kfin .2s ease-out;
}
.kf.head{border-right-color:var(--gold);color:var(--gold)}
@keyframes kfin{from{opacity:0;transform:translateX(18px)}to{opacity:1;transform:none}}

/* ---------------- 波次 banner ---------------- */
#banner{
  position:absolute;left:50%;top:31%;transform:translateX(-50%);
  font-size:44px;font-weight:900;letter-spacing:8px;
  color:var(--paper);text-shadow:4px 4px 0 var(--ink);
  opacity:0;text-align:center;white-space:nowrap;
}
#banner.on{animation:bn 2.1s ease-out}
#banner .sub{display:block;font-size:15px;letter-spacing:3px;color:var(--gold);margin-top:8px}
@keyframes bn{
  0%{opacity:0;transform:translateX(-50%) scale(1.5)}
  14%{opacity:1;transform:translateX(-50%) scale(1)}
  72%{opacity:1;transform:translateX(-50%) scale(1)}
  100%{opacity:0;transform:translateX(-50%) scale(.94)}
}

/* ---------------- 伤害方向 / 低血 ---------------- */
#dmgRing{position:absolute;inset:0}
.dind{
  position:absolute;left:50%;top:50%;width:190px;height:190px;
  margin:-95px 0 0 -95px;pointer-events:none;
}
.dind i{
  position:absolute;left:50%;top:0;width:56px;height:9px;margin-left:-28px;
  background:linear-gradient(rgba(255,60,60,.92),rgba(255,60,60,0));
  clip-path:polygon(50% 0,100% 100%,0 100%);
  animation:dfade 1.15s ease-out forwards;
}
@keyframes dfade{0%{opacity:1}100%{opacity:0}}

#lowhp{
  position:absolute;inset:0;opacity:0;transition:opacity .3s;
  background:radial-gradient(ellipse at center,transparent 45%,rgba(190,20,20,.62) 100%);
}
#lowhp.on{animation:lowp 1.05s ease-in-out infinite}
@keyframes lowp{0%,100%{opacity:.35}50%{opacity:.8}}

/* ---------------- 触屏 ---------------- */
#touch{position:absolute;inset:0;z-index:25}
#lookPad{position:absolute;right:0;top:0;width:50%;height:100%;z-index:1}
#stick{
  position:absolute;left:26px;bottom:26px;width:120px;height:120px;z-index:2;
  border:3px solid rgba(255,255,255,.3);border-radius:50%;
  background:rgba(0,0,0,.28);
}
#stick i{
  position:absolute;left:50%;top:50%;width:52px;height:52px;margin:-26px 0 0 -26px;
  border-radius:50%;background:rgba(255,255,255,.4);border:2px solid rgba(255,255,255,.6);
}
#tbtns{position:absolute;right:26px;bottom:26px;z-index:2;display:flex;flex-direction:column;gap:10px;align-items:flex-end}
.tb{
  display:flex;align-items:center;justify-content:center;
  border:3px solid var(--ink);box-shadow:4px 4px 0 rgba(0,0,0,.5);
  font-family:var(--mono);font-size:13px;font-weight:800;letter-spacing:1px;
  color:var(--ink);border-radius:50%;
}
.tb-fire{width:88px;height:88px;background:var(--acc);font-size:15px}
.tb-jump{width:62px;height:62px;background:var(--acc2)}
.tb-reload{width:58px;height:58px;background:var(--paper);font-size:11px}
.tb:active{filter:brightness(1.25)}

/* ---------------- 调试 ---------------- */
#dbg{
  position:absolute;left:22px;top:14px;z-index:30;
  font-size:10.5px;line-height:1.6;opacity:.6;
  background:rgba(0,0,0,.5);padding:6px 9px;
  white-space:pre;pointer-events:none;
}

/* ---------------- 武器名 + 触屏换枪 ---------------- */
.wname{
  font-family:var(--mono);font-size:11px;font-weight:700;letter-spacing:2px;
  color:var(--gold);opacity:.9;
  align-self:flex-start;margin-right:4px;
  border-left:3px solid var(--gold);padding-left:7px;
}
.tb-wep{width:58px;height:58px;background:var(--gold);font-size:11px}

/* ---------------- 选角 ---------------- */
.pick-row{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  margin:0 0 22px;text-align:left;
}
.pick-row h3{
  font-size:12px;letter-spacing:2px;color:var(--gold);
  margin:0;width:44px;flex:none;
}
.chips{display:flex;gap:9px;flex-wrap:wrap;flex:1;min-width:0}
.chip{
  font-family:var(--mono);font-size:12px;font-weight:800;letter-spacing:1px;
  color:var(--paper);
  background:rgba(255,255,255,.06);
  border:2px solid rgba(255,255,255,.3);
  padding:8px 16px;cursor:pointer;
  transition:background .16s,border-color .16s,color .16s,transform .1s;
}
.chip:hover{border-color:var(--paper)}
.chip:active{transform:translateY(2px)}
.chip.on{
  color:var(--ink);background:var(--gold);border-color:var(--ink);
  box-shadow:3px 3px 0 rgba(0,0,0,.5);
}