/* DeskBlak Nebula Arena · original space-arena UI inspired by classic cell games */
.game-shell{position:relative;min-height:72vh;border:1px solid #1f69bb;border-radius:22px;overflow:hidden;background:#030711;box-shadow:0 25px 70px #000b,inset 0 0 90px #0c2b5538}.game-shell:fullscreen{width:100vw;height:100vh;border:0;border-radius:0}.game-shell:fullscreen .game-stage{height:100vh}.game-stage{position:relative;height:72vh;min-height:560px;background:radial-gradient(circle at 50% 30%,#0d1730 0,#02050d 68%,#000 100%);overflow:hidden}.game-canvas{display:block;width:100%;height:100%;touch-action:none;cursor:crosshair}.game-hud{position:absolute;inset:0;pointer-events:none;color:#fff;text-shadow:0 2px 8px #000}.game-topbar{position:absolute;left:18px;right:18px;top:16px;display:flex;gap:10px;align-items:flex-start;justify-content:space-between}.game-stats{display:grid;grid-template-columns:repeat(4,minmax(95px,auto));gap:8px}.game-stat{background:#071322d9;border:1px solid #2779c7;border-radius:12px;padding:8px 11px;backdrop-filter:blur(8px);box-shadow:inset 0 0 22px #1b69b022}.game-stat b{display:block;color:#8fd3ff;font-size:16px}.game-stat span{font-size:10px;color:#aabbd0;letter-spacing:.08em;text-transform:uppercase}.game-actions{display:flex;gap:8px;pointer-events:auto}.game-actions button,.game-join button,.game-chat-form button,.game-respawn{border:1px solid #3b94e8;background:linear-gradient(180deg,#2385d9,#125a9c);color:#fff;border-radius:11px;padding:9px 13px;font-weight:700;box-shadow:inset 0 1px #ffffff44,0 5px 18px #0007}.game-actions button:hover,.game-join button:hover,.game-chat-form button:hover{filter:brightness(1.12)}.game-actions .danger{border-color:#ff4978;background:linear-gradient(180deg,#c52d61,#6b1935)}.game-leaderboard{position:absolute;right:18px;top:88px;width:235px;background:#071322d8;border:1px solid #2779c7;border-radius:15px;padding:12px;backdrop-filter:blur(8px)}.game-leaderboard h3{margin:0 0 9px;font-size:13px;color:#8fd3ff;letter-spacing:.12em}.game-leaderboard ol{margin:0;padding-left:24px}.game-leaderboard li{font-size:12px;line-height:1.55;color:#d8e6f5}.game-leaderboard li.ai{color:#91d6ff}.game-chat{position:absolute;left:18px;bottom:18px;width:min(390px,45vw);pointer-events:auto}.game-chat-log{height:145px;overflow:auto;padding:10px;border:1px solid #1f6eb5;border-bottom:0;border-radius:14px 14px 0 0;background:#030b16b8;backdrop-filter:blur(8px);font-size:12px}.game-chat-line{margin-bottom:6px;color:#cfe7ff}.game-chat-line.system{color:#77b9ef}.game-chat-line b{color:#fff}.game-chat-form{display:flex}.game-chat-form input{flex:1;border-radius:0 0 0 12px;border:1px solid #1f6eb5;background:#07111d;color:#fff;padding:10px 12px;outline:none}.game-chat-form button{border-radius:0 0 12px 0}.game-help{position:absolute;left:50%;bottom:20px;transform:translateX(-50%);font-size:11px;color:#8aa0b8;background:#050b13b0;border:1px solid #1c4e78;border-radius:20px;padding:7px 12px}.game-minimap{position:absolute;right:18px;bottom:18px;width:148px;height:148px;border:1px solid #2779c7;border-radius:15px;background:#020914cf;overflow:hidden}.game-minimap canvas{width:100%;height:100%}.game-dead{position:absolute;inset:0;display:grid;place-items:center;background:#01040bd1;pointer-events:auto}.game-dead[hidden]{display:none!important}.game-dead-card{width:min(360px,90vw);background:linear-gradient(145deg,#0c1a2c,#07101d);border:1px solid #318de1;border-radius:20px;padding:25px;text-align:center;box-shadow:0 30px 80px #000}.game-dead-card h2{margin:0 0 8px;font-size:28px}.game-dead-card p{color:#9db3ca}.game-respawn{margin-top:12px}.game-join{position:absolute;inset:0;display:grid;place-items:center;background:radial-gradient(circle at center,#0a1e3ee8,#01040af5);z-index:8;pointer-events:auto}.game-join[hidden]{display:none!important}.game-join-card{width:min(440px,92vw);text-align:center;background:#071322eb;border:1px solid #2d85d0;border-radius:24px;padding:28px;box-shadow:0 35px 90px #000}.game-join-card .game-logo{font-size:44px;filter:drop-shadow(0 0 20px #37a8ff)}.game-join-card h2{font-size:30px;margin:5px 0 6px}.game-join-card p{color:#9fb5cb;line-height:1.5}.game-join-card input{width:100%;box-sizing:border-box;padding:12px 14px;border:1px solid #236bab;border-radius:12px;background:#030914;color:#fff;margin:10px 0 12px}.game-live-badge{display:inline-flex;align-items:center;gap:6px;font-size:10px;color:#7ec6ff;border:1px solid #225d8e;border-radius:15px;padding:5px 9px}.game-live-badge:before{content:'';width:7px;height:7px;border-radius:50%;background:#3dffae;box-shadow:0 0 12px #3dffae}.game-neuron-note{margin-top:12px;font-size:11px;color:#82a7c7}.game-neuron-note strong{color:#98d7ff}.game-mobile-stick{display:none;position:absolute;left:22px;bottom:170px;width:110px;height:110px;border-radius:50%;border:1px solid #4a84b5;background:#0b203b44;pointer-events:none}.game-mobile-stick:after{content:'';position:absolute;left:37px;top:37px;width:36px;height:36px;border-radius:50%;background:#4aaef570;box-shadow:0 0 20px #49aef5}.arena-page{margin:0;background:#000;overflow:hidden;font-family:Inter,system-ui,Segoe UI,sans-serif}.arena-page .game-shell{height:100vh;min-height:100vh;border:0;border-radius:0}.arena-page .game-stage{height:100vh;min-height:100vh}@media(max-width:850px){.game-stage{height:76vh;min-height:520px}.game-stats{grid-template-columns:repeat(2,minmax(80px,auto))}.game-leaderboard{width:180px;top:118px}.game-chat{width:calc(100% - 36px);max-width:360px}.game-help{display:none}.game-minimap{width:110px;height:110px;bottom:178px}.game-mobile-stick{display:block}}@media(max-width:560px){.game-topbar{left:10px;right:10px;top:9px}.game-leaderboard{right:10px;top:120px;width:150px;padding:9px}.game-chat{left:10px;bottom:10px;width:calc(100% - 20px)}.game-chat-log{height:110px}.game-minimap{right:10px;bottom:150px;width:88px;height:88px}.game-stat{padding:6px 8px}.game-stat b{font-size:14px}.game-actions{flex-direction:column}.game-actions button{padding:7px 9px;font-size:11px}}

/* v10 · combat feedback, sound and living-arena polish */
.game-killfeed{position:absolute;top:92px;left:50%;transform:translateX(-50%);width:min(520px,68vw);display:grid;gap:6px;pointer-events:none;text-align:center}
.game-killfeed>div{justify-self:center;max-width:100%;padding:7px 12px;border-radius:999px;background:#020914cc;border:1px solid #3b7fb570;backdrop-filter:blur(8px);font-size:11px;color:#d8eeff;box-shadow:0 8px 24px #0008;animation:feedIn .22s ease-out}
.game-killfeed .feed-death{border-color:#ff486f99;color:#ffd1db;background:#2c0712dd}.game-killfeed .feed-grow{border-color:#5effb999;color:#c8ffe5;background:#06281add}.game-killfeed .feed-join{border-color:#53bfff88;color:#caeeff}.game-killfeed .feed-kill{border-color:#ff9c4d77;color:#ffe0c5}
@keyframes feedIn{from{opacity:0;transform:translateY(-10px) scale(.96)}to{opacity:1;transform:none}}
.death-star{font-size:54px;color:#ff5278;text-shadow:0 0 25px #ff315d,0 0 55px #f10b4a;animation:deathPulse .85s ease-in-out infinite alternate}
@keyframes deathPulse{to{transform:scale(1.13) rotate(14deg);filter:brightness(1.3)}}
.game-actions [data-sound]{min-width:104px}.game-stat b[data-mass],.game-stat b[data-kills]{color:#9fffd7}
.game-stage:after{content:'';pointer-events:none;position:absolute;inset:0;box-shadow:inset 0 0 80px #0e65a617,inset 0 0 160px #0009}
@media(max-width:900px){.game-killfeed{top:122px;width:min(88vw,520px)}.game-actions [data-share]{display:none}}

/* v21 Pro Cloud visual polish */
.game-shell{border-color:#3b7fff88;background:#01040b;box-shadow:0 30px 100px #000d,inset 0 0 120px #163d8844}
.game-stage{background:radial-gradient(circle at 25% 18%,#163d6c44,transparent 25%),radial-gradient(circle at 75% 75%,#421b7944,transparent 28%),radial-gradient(circle at 50% 35%,#0d1730 0,#02050d 65%,#000 100%)}
.game-stage:before{content:'';position:absolute;inset:0;pointer-events:none;background-image:radial-gradient(circle,#8ce7ff 0 1px,transparent 1.5px),radial-gradient(circle,#b799ff 0 1px,transparent 1.5px);background-size:91px 91px,137px 137px;background-position:12px 18px,54px 37px;opacity:.16;animation:spaceDrift 28s linear infinite}
@keyframes spaceDrift{to{background-position:103px 109px,191px 174px}}
.game-hud{font-family:Inter,ui-sans-serif,system-ui,sans-serif}.game-stat,.game-leaderboard,.game-chat-log,.game-minimap{border-color:#67cbff55;background:#06101fbd;box-shadow:inset 0 0 28px #2d82ff14,0 10px 35px #0005}.game-stat b{color:#76e9ff}.game-actions button,.game-join button,.game-chat-form button,.game-respawn{border-color:#70dfff66;background:linear-gradient(135deg,#5d55ee,#178cc6);box-shadow:inset 0 1px #ffffff3b,0 8px 24px #102a6d55}.game-join-card{background:linear-gradient(145deg,#0d1830ee,#080d19f5);border-color:#6ddfff66;box-shadow:0 40px 120px #000,0 0 80px #284dff22}.game-logo{color:#7de9ff;text-shadow:0 0 25px #4ed9ff,0 0 55px #7a55ff}
/* Match the application identity without changing game mechanics. */
.game-shell{border-color:#9f2036;background:#09080b}.game-stage{background:radial-gradient(circle at 50% 30%,#28131d 0,#0b0a0e 70%,#030304 100%)}
.game-stat,.game-leaderboard,.game-chat-log,.game-help,.game-minimap,.game-dead-card,.game-join-card{background:#1b1219df;border-color:#a52b3f}
.game-stat b,.game-leaderboard h3,.game-live-badge,.game-neuron-note strong{color:#ffd05a}
.game-actions button,.game-join button,.game-chat-form button,.game-respawn{border-color:#d23b4e;background:linear-gradient(180deg,#cf3046,#831327)}
.game-join{background:radial-gradient(circle at center,#421624ec,#08080af5)}.game-join-card input,.game-chat-form input{background:#110c11;border-color:#a52b3f}.game-mobile-stick{border-color:#c3384b;background:#7d193522}.game-mobile-stick:after{background:#d83d4e99;box-shadow:0 0 20px #d83d4e}