:root{--bg:#070913;--panel:#10182a;--line:#27334c;--text:#f8fafc;--muted:#9ca9c2;--accent:#7c3aed;--cyan:#22d3ee}*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at 15% 0,#312e8133,transparent 35rem),var(--bg);color:var(--text);font-family:Tahoma,Arial,sans-serif;overflow-x:hidden}button,input{font:inherit}header{height:66px;display:flex;align-items:center;justify-content:space-between;padding:0 4%;border-bottom:1px solid var(--line);background:#070913dd;backdrop-filter:blur(15px)}header a{color:inherit;text-decoration:none;font-weight:900}header b{color:var(--cyan)}nav{display:flex;gap:18px}main{width:min(1450px,96%);margin:24px auto}.panel{background:linear-gradient(145deg,#111a2e,#0c1221);border:1px solid var(--line);border-radius:25px;padding:34px}.lobby{display:grid;grid-template-columns:1.4fr .6fr;gap:25px;min-height:620px;align-items:center}.eyebrow{color:var(--cyan);font-weight:900}.lobby h1{font-size:clamp(42px,7vw,90px);margin:12px 0}.lobby p{color:var(--muted);font-size:18px;line-height:1.8}.lobby label{display:grid;gap:8px;max-width:500px}.lobby input,.join input,#chatInput{padding:14px;border:1px solid var(--line);border-radius:12px;background:#060b15;color:white}.modes,.buttons,.join{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.mode,button{border:1px solid var(--line);background:#151f35;color:white;border-radius:12px;padding:12px 18px;cursor:pointer}.mode.active,.primary{background:linear-gradient(135deg,var(--accent),#4f46e5)}aside{padding:25px;border:1px solid var(--line);border-radius:20px;background:#ffffff08}aside li{margin:17px 0;color:var(--muted)}.status{min-height:28px}.topbar{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;background:var(--panel);border:1px solid var(--line);border-radius:14px;margin-bottom:10px}.topbar #timer{font-size:24px;font-weight:900;color:var(--cyan)}.gamewrap{position:relative;overflow:hidden;border-radius:18px;border:1px solid var(--line);background:#02050b;aspect-ratio:16/9}canvas{width:100%;height:100%;display:block;touch-action:none}#countdown{position:absolute;inset:0;display:grid;place-items:center;font-size:120px;font-weight:900;text-shadow:0 0 35px var(--cyan);pointer-events:none}#hud{position:absolute;right:16px;bottom:16px;width:270px;background:#070913dd;padding:12px;border-radius:14px;border:1px solid var(--line)}.bar{height:9px;background:#222c3f;border-radius:20px;margin:6px 0;overflow:hidden}.bar i{display:block;height:100%;width:100%;background:#22c55e}.bar.shield i{background:#38bdf8}.weapon{display:flex;justify-content:space-between;margin-top:8px}.weapon strong{color:#facc15}#scoreboard{position:absolute;left:12px;top:12px;background:#070913dd;border:1px solid var(--line);border-radius:12px;padding:8px;min-width:220px}.score-row{display:grid;grid-template-columns:1fr auto auto;gap:10px;padding:7px;border-bottom:1px solid #ffffff10}.score-row.me{background:#7c3aed33}#killfeed{position:absolute;right:15px;top:15px;display:grid;gap:6px}.kill{background:#050914dd;border-right:3px solid #ef4444;padding:8px 12px;border-radius:8px;animation:fade 4s forwards}@keyframes fade{80%{opacity:1}100%{opacity:0}}.below{display:grid;grid-template-columns:1fr 340px;gap:10px;margin-top:10px}.weapons{display:flex;gap:8px;flex-wrap:wrap}.weapons button{padding:9px 12px}#chatForm{display:flex}#chatInput{flex:1}#chat{grid-column:1/-1;height:75px;overflow:auto;color:var(--muted);font-size:13px}.mobile{display:none;position:fixed;inset:auto 0 15px 0;justify-content:space-between;padding:0 25px;pointer-events:none}.mobile button{pointer-events:auto}.dpad{display:grid;grid-template-columns:repeat(3,52px);grid-template-areas:". u ." "l d r"}.dpad [data-key=up]{grid-area:u}.dpad [data-key=left]{grid-area:l}.dpad [data-key=down]{grid-area:d}.dpad [data-key=right]{grid-area:r}.fire{width:82px;height:82px;border-radius:50%;background:#dc2626!important}dialog{background:#101827;color:white;border:1px solid var(--line);border-radius:20px;padding:25px;min-width:min(500px,90vw)}@media(max-width:800px){nav{display:none}.lobby{grid-template-columns:1fr;padding:20px}.lobby aside{display:none}.below{grid-template-columns:1fr}.gamewrap{margin:0 -2%;width:104%}#scoreboard{min-width:170px;font-size:11px}#hud{width:180px;font-size:12px}.mobile{display:flex}.weapons{padding-bottom:100px}}
/* V6.3 mobile + international polish */
header{position:sticky;top:0;z-index:50}header>a{font-size:20px}nav a{padding:9px 11px;border-radius:10px}nav a:hover{background:#ffffff0c}.panel,.topbar,.gamewrap{box-shadow:0 24px 70px #0005}.buttons button,.join button{min-height:48px}.primary{box-shadow:0 10px 26px #7c3aed55}.mobile{padding-bottom:env(safe-area-inset-bottom)}
@media(max-width:800px){
 header{height:auto;min-height:58px;padding:10px 14px;padding-inline-end:132px}header nav{display:flex;gap:5px;overflow-x:auto;scrollbar-width:none}header nav a{white-space:nowrap;font-size:12px;background:#111827;padding:8px}
 main{width:100%!important;margin:10px auto!important}.lobby{min-height:auto;border-radius:0!important}.lobby h1{font-size:40px!important}.lobby p{font-size:15px}.buttons,.join,.modes{display:grid;grid-template-columns:1fr 1fr}.join input{grid-column:1/-1}.topbar{margin:0 8px 8px;font-size:12px}.topbar #timer{font-size:19px}.gamewrap{width:100%;margin:0;border-radius:0;aspect-ratio:auto;height:min(62vh,560px)}
 #hud{right:8px;bottom:8px;width:160px;padding:8px;opacity:.94}#scoreboard{left:8px;top:8px;min-width:145px;max-width:44vw}.score-row{gap:5px;padding:5px}.below{padding:8px}.weapons{display:grid;grid-template-columns:repeat(5,1fr);padding-bottom:118px}.weapons button{padding:8px 2px;font-size:10px}.mobile{display:flex;align-items:end;z-index:60}.dpad{width:150px;height:150px;border-radius:50%;background:#03071299;border:1px solid #ffffff20;padding:10px;grid-template-columns:repeat(3,43px);justify-content:center;align-content:center;backdrop-filter:blur(8px)}.dpad button{width:43px;height:43px;padding:0;border-radius:50%;font-size:18px;background:#334155cc}.fire{width:94px;height:94px;font-weight:900;box-shadow:0 0 0 9px #dc262633,0 10px 30px #0008}
}
@media(max-width:480px){header nav a:nth-child(3){display:none}.lobby{padding:16px!important}.modes,.buttons{grid-template-columns:1fr}.gamewrap{height:58vh}#killfeed{display:none}.topbar>div:first-child button{display:none}}

/* V7.1 Arena smooth rendering */
.performance{display:flex;align-items:center;gap:12px}.performance #fpsMeter{font:800 12px/1 Tahoma;padding:7px 9px;border-radius:999px;background:#16a34a22;border:1px solid #22c55e66;color:#86efac;direction:ltr}.performance #fpsMeter.low{background:#dc262622;border-color:#ef444466;color:#fca5a5}canvas{image-rendering:auto;will-change:contents;transform:translateZ(0)}@media(max-width:800px){.performance{gap:6px}.performance #fpsMeter{font-size:10px;padding:5px 7px}}