:root{
  --bg:#0c0f12; --panel:#13181dee; --panel2:#181f25; --line:rgba(255,255,255,.08);
  --txt:#e8eef2; --dim:#8b97a3; --acc:#ffa62b; --acc2:#ff5d3a; --good:#5dd97c; --red:#ff5d5d;
}
*{margin:0;padding:0;box-sizing:border-box;user-select:none;-webkit-user-select:none}
html,body{height:100%;overflow:hidden;background:var(--bg);color:var(--txt);
  font-family:'Rajdhani','Segoe UI',system-ui,sans-serif;font-size:15px}
canvas#game{position:fixed;inset:0;display:block;background:#0c0f12}
canvas#game.aiming{cursor:none}
#vignette{position:fixed;inset:0;pointer-events:none;
  background:radial-gradient(ellipse at 50% 45%,transparent 55%,rgba(0,0,0,.42) 100%)}
.hidden{display:none!important}
kbd{font:600 11px Rajdhani;border:1px solid var(--line);border-bottom-width:2px;border-radius:4px;
  padding:1px 6px;background:#0a0d10;color:var(--dim)}

/* ---------- HUD ---------- */
#hud{position:fixed;inset:0;pointer-events:none;text-transform:uppercase;letter-spacing:.06em}
.hud-tl{position:absolute;top:18px;left:22px}
.hud-tl .score{font-size:44px;font-weight:700;line-height:1;text-shadow:0 2px 10px #000}
.hud-tl .sub{font-size:13px;color:var(--dim);font-weight:600;margin-top:2px}
.hud-tl .sub b{color:var(--acc)}
.hud-timer{position:absolute;top:16px;left:50%;transform:translateX(-50%);text-align:center}
.hud-timer .t{font-size:40px;font-weight:700;text-shadow:0 2px 10px #000}
.hud-timer .t.low{color:var(--red)}
.hud-timer .bar{width:150px;height:3px;background:rgba(255,255,255,.12);margin:4px auto 0}
.hud-timer .bar i{display:block;height:100%;background:var(--acc);width:100%}
.hud-bl{position:absolute;left:22px;bottom:20px;font-size:12px;color:var(--dim);font-weight:600}
.hud-bl .mode{color:var(--acc);font-size:14px;margin-bottom:2px}
#hudCd{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;
  pointer-events:none;font-size:120px;font-weight:700;color:var(--acc);
  text-shadow:0 4px 30px rgba(0,0,0,.6)}
#hudCd span{animation:cdpop .9s ease-out}
@keyframes cdpop{0%{transform:scale(1.6);opacity:0}20%{opacity:1}100%{transform:scale(.9)}}
#hudPeek{position:fixed;bottom:64px;left:50%;transform:translateX(-50%);text-align:center;pointer-events:none}
#peekPrompt{font-size:20px;font-weight:700;letter-spacing:2px;text-shadow:0 2px 12px rgba(0,0,0,.7)}
#speedBar{width:200px;height:5px;background:rgba(255,255,255,.12);border-radius:3px;margin:8px auto 0;overflow:hidden}
#speedFill{display:block;height:100%;width:0;background:#5dd97c;border-radius:3px}
#toast{position:fixed;bottom:70px;left:50%;transform:translateX(-50%);background:var(--panel);
  border:1px solid var(--line);padding:8px 16px;border-radius:6px;font-weight:600;font-size:13px;
  opacity:0;transition:opacity .2s;pointer-events:none;letter-spacing:.04em}
#toast.show{opacity:1}

/* ---------- overlays ---------- */
.overlay{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(180deg,rgba(8,10,13,.82),rgba(8,10,13,.66) 40%,rgba(8,10,13,.9));
  backdrop-filter:blur(3px);z-index:20}
.card{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:34px 42px;
  min-width:420px;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.card h2{font-size:26px;font-weight:700;letter-spacing:.08em;text-transform:uppercase}
.card h2 em{color:var(--acc);font-style:normal}
.card .sub2{color:var(--dim);font-weight:600;font-size:13px;margin-bottom:20px;letter-spacing:.05em}
.btn{display:inline-flex;align-items:center;gap:8px;font:600 15px Rajdhani;letter-spacing:.1em;
  text-transform:uppercase;color:var(--txt);background:var(--panel2);border:1px solid var(--line);
  padding:11px 22px;border-radius:6px;cursor:pointer;transition:.12s}
.btn:hover{border-color:var(--acc);color:var(--acc)}
.btn.primary{background:var(--acc);color:#141312;border-color:var(--acc);
  clip-path:polygon(0 0,calc(100% - 14px) 0,100% 14px,100% 100%,14px 100%,0 calc(100% - 14px))}
.btn.primary:hover{background:#ffb64f;color:#141312}
.btn-row{display:flex;gap:10px;margin-top:24px;flex-wrap:wrap}

/* menu */
#menu{align-items:stretch;justify-content:center;overflow:auto}
.menu-inner{margin:auto;width:min(1060px,94vw);padding:40px 0 28px}
.brand{display:flex;align-items:baseline;gap:14px;margin-bottom:4px}
.brand h1{font-size:44px;font-weight:700;letter-spacing:.06em}
.brand h1 em{color:var(--acc);font-style:normal}
.brand .tag{color:var(--dim);font-weight:600;letter-spacing:.14em;font-size:13px;text-transform:uppercase;margin-left:14px}
.brand .right{margin-left:auto;display:flex;gap:10px;align-items:center}
.sens-chip{font-size:12px;color:var(--dim);border:1px solid var(--line);border-radius:5px;
  padding:5px 10px;font-weight:600;letter-spacing:.05em}
.sens-chip b{color:var(--txt)}
.sec-label{font-size:12px;font-weight:700;letter-spacing:.22em;color:var(--dim);margin:26px 0 10px;
  text-transform:uppercase;display:flex;align-items:center;gap:10px}
.sec-label::after{content:'';flex:1;height:1px;background:var(--line)}
.modes{display:grid;grid-template-columns:repeat(6,1fr);gap:10px}
.mode-card{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:14px 14px 12px;
  cursor:pointer;transition:.12s;position:relative}
.mode-card:hover{border-color:rgba(255,166,43,.5);transform:translateY(-2px)}
.mode-card.sel{border-color:var(--acc);background:linear-gradient(160deg,#1c2113,#151a1f);
  box-shadow:0 0 0 1px var(--acc),0 8px 24px rgba(255,166,43,.08)}
.mode-card svg{width:26px;height:26px;stroke:var(--acc);fill:none;stroke-width:1.6;margin-bottom:8px}
.mode-card .mn{font-weight:700;font-size:16px;letter-spacing:.06em}
.mode-card .md{font-size:12px;color:var(--dim);font-weight:500;line-height:1.35;margin-top:2px;min-height:32px}
.mode-card .mb{font-size:11px;color:var(--acc);font-weight:700;margin-top:8px;letter-spacing:.08em}
.chips{display:flex;gap:8px;align-items:center}
.chip{font:600 14px Rajdhani;letter-spacing:.08em;padding:8px 16px;border:1px solid var(--line);
  border-radius:6px;background:var(--panel);cursor:pointer;color:var(--dim);transition:.12s}
.chip:hover{color:var(--txt)}
.chip.sel{color:var(--acc);border-color:var(--acc)}
.start-row{display:flex;align-items:center;gap:18px;margin-top:34px}
#startBtn{font-size:20px;padding:16px 54px;letter-spacing:.18em}
.start-hint{color:var(--dim);font-weight:600;font-size:13px;letter-spacing:.06em}
.menu-foot{margin-top:26px;font-size:12px;color:#5b6672;font-weight:600;letter-spacing:.05em;
  display:flex;gap:18px;flex-wrap:wrap}
.menu-foot a{color:#7c8894;text-decoration:none}
.menu-foot a:hover{color:var(--acc)}

/* seo content */
.seo{margin-top:44px;border-top:1px solid var(--line);padding-top:28px;display:grid;
  grid-template-columns:1.15fr 1fr;gap:30px}
.seo h2{font-size:15px;letter-spacing:.14em;color:var(--acc);text-transform:uppercase;
  margin-bottom:10px;font-weight:700}
.seo p{font-size:13.5px;color:#aeb9c4;line-height:1.6;font-weight:500;margin-bottom:10px}
.seo dt{font-size:13px;font-weight:700;color:var(--txt);margin-top:12px;letter-spacing:.03em}
.seo dd{font-size:12.5px;color:#94a1ad;line-height:1.55;margin:2px 0 0;font-weight:500}

/* end screen */
.end-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:18px}
.est{background:var(--panel2);border:1px solid var(--line);border-radius:7px;padding:10px 14px}
.est small{display:block;font-size:11px;color:var(--dim);font-weight:700;letter-spacing:.14em}
.est b{font-size:22px;font-weight:700}
.newbest{display:inline-block;background:var(--acc);color:#141312;font-weight:700;font-size:12px;
  letter-spacing:.12em;border-radius:4px;padding:3px 10px;margin-left:10px;vertical-align:middle}
#endScore{font-size:56px;font-weight:700;line-height:1;margin-top:6px}
#endBest{color:var(--dim);font-weight:600;margin-top:2px}

/* settings drawer */
#settings{position:fixed;top:0;right:0;bottom:0;width:360px;background:#10151a;border-left:1px solid var(--line);
  z-index:40;transform:translateX(102%);transition:transform .22s ease;overflow-y:auto;padding:22px 24px 30px}
#settings.open{transform:none}
#settings h3{font-size:15px;letter-spacing:.16em;text-transform:uppercase;margin:20px 0 10px;color:var(--acc)}
#settings h3:first-of-type{margin-top:8px}
#settings .close{position:absolute;top:14px;right:14px}
.set{margin-bottom:12px}
.set label{display:flex;justify-content:space-between;font-size:12px;font-weight:700;
  letter-spacing:.1em;color:var(--dim);text-transform:uppercase;margin-bottom:5px}
.set label b{color:var(--txt)}
.set input[type=range]{width:100%;accent-color:var(--acc);cursor:pointer}
.set .swatches{display:flex;gap:8px}
.sw{width:26px;height:26px;border-radius:5px;border:2px solid transparent;cursor:pointer}
.sw.sel{border-color:#fff}
.toggles{display:flex;gap:14px;margin:4px 0 8px}
.tgl{display:flex;gap:7px;align-items:center;font-size:13px;font-weight:600;color:var(--dim);cursor:pointer}
.tgl input{accent-color:var(--acc)}
#xhairPrev{width:100%;height:90px;background:#20272c;border:1px solid var(--line);border-radius:6px}
.scrim{position:fixed;inset:0;background:rgba(0,0,0,.35);z-index:35}
/* language links */
.langs{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.langs .cur{color:#e8eef2;font-weight:700}
/* collapsed FAQ */
.faq-more{margin-top:2px}
.faq-more summary{cursor:pointer;list-style:none;color:var(--acc);font-size:12px;font-weight:700;
  letter-spacing:.12em;text-transform:uppercase;padding:6px 0}
.faq-more summary::-webkit-details-marker{display:none}
.faq-more summary::before{content:'+ '}
.faq-more[open] summary::before{content:'\2013 '}

@media (max-width:900px){
  .modes{grid-template-columns:repeat(2,1fr)}
  .brand h1{font-size:32px}
  .seo{grid-template-columns:1fr}
}

/* end-screen sparkline + PB delta */
#endSpark{width:100%;max-width:560px;margin-top:14px;display:block}
#endSpark.hidden{display:none}
.pbdelta{color:var(--good);font-weight:700;font-size:15px;margin-left:8px}
/* sens matcher */
.set .row{display:flex;gap:8px}
.set .row select,.set .row input{background:var(--panel2);border:1px solid var(--line);border-radius:6px;color:var(--txt);
  padding:7px 9px;font:inherit;flex:1;min-width:0}
.set .btn.mini{padding:7px 12px;font-size:12px}
.set .hint{display:block;margin-top:6px;font-size:11px;color:var(--dim)}