:root{--bg:#10151b;--panel:#19212a;--line:#34404b;--ink:#f5f4ed;--muted:#8997a3;--orange:#ff8464;--cyan:#91d9d0;--sand:#e7d8b7}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:0;overflow-x:hidden;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Hiragino Sans","Noto Sans JP",sans-serif;-webkit-font-smoothing:antialiased}
button{font:inherit;cursor:pointer;touch-action:manipulation}button:focus-visible,a:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}[hidden]{display:none!important}.noise{z-index:-1;pointer-events:none;position:fixed;inset:0;background:radial-gradient(ellipse at 5% 0%,#303c453e,transparent 45%),radial-gradient(ellipse at 100% 20%,#3e28311c,transparent 40%)}.topbar{width:min(1180px,calc(100% - 48px));height:92px;margin:auto;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #ffffff1c}.brand{display:flex;align-items:center;gap:13px;font:900 11px/1.15 system-ui;letter-spacing:.18em}.brand-icon{background:var(--orange);color:#14191c;display:grid;place-items:center;width:42px;height:42px;font-size:28px;font-weight:1000;letter-spacing:-.12em;border-radius:9px;transform:rotate(-8deg);box-shadow:3px 4px 0 #ffffff16}.brand-icon span{color:#ecedb0}.brand small{display:block;color:#8899a6;letter-spacing:.19em;margin-top:5px;font:800 9px system-ui}.topright{color:#c5c9c8;font:800 10px system-ui;letter-spacing:.15em}.live-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:#a6e0af;margin-right:9px;box-shadow:0 0 0 5px #a6e0af18}.build{color:#61717e}.page{width:min(1180px,calc(100% - 48px));margin:auto}.intro{padding:45px 0 37px}.eyebrow{display:flex;gap:15px;align-items:center;color:#9da9af;letter-spacing:.17em;font:800 10px system-ui}.pill{border-radius:4px;border:1px solid #5d6d6a;color:var(--cyan);padding:8px 11px}.intro h1{font-size:clamp(40px,5.2vw,70px);line-height:1.13;letter-spacing:-.075em;margin:19px 0 20px;font-weight:950}.intro h1 em{color:var(--orange);font-style:normal}.intro p{font-size:13px;color:#a8b3bc;line-height:1.9;margin:0}.game-grid{display:grid;grid-template-columns:minmax(0,1.75fr) minmax(250px,.82fr);gap:25px;align-items:start}.game-column{min-width:0}.arena-wrap{background:#222c34;border-radius:17px;border:1px solid #53606b;box-shadow:0 22px 60px #0006;overflow:hidden}.arena-topline{height:51px;padding:0 18px;display:flex;align-items:center;justify-content:space-between;background:#17212a;border-bottom:1px solid #3c4b56;gap:10px}.match-indicator{font:800 10px system-ui;color:#dae2db;letter-spacing:.1em;white-space:nowrap}.match-led{display:inline-block;background:#eac68b;width:7px;height:7px;border-radius:50%;margin-right:9px}.match-indicator #round-label{color:#8496a3;padding-left:8px}.arena-controls{display:flex;gap:7px}.arena-controls button{font:800 10px system-ui;letter-spacing:.06em;color:#adb7bc;border:1px solid #485661;border-radius:6px;padding:7px 9px;background:#26313b;white-space:nowrap}.arena-controls button:hover{color:#fff;border-color:#9cacae}.score-row{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:14px 20px 15px;background:linear-gradient(110deg,#192930,#242a35);min-height:81px}.team{display:flex;flex-direction:column;gap:3px}.team.enemy{text-align:right;align-items:flex-end}.team-tag{font:900 9px system-ui;letter-spacing:.14em;color:var(--cyan)}.enemy .team-tag{color:var(--orange)}.team strong{font-size:18px;letter-spacing:-.04em}.pips{display:flex;gap:5px}.pips i{width:16px;height:4px;border-radius:4px;background:#576674}.pips i.on{background:var(--cyan)}.enemy .pips i.on{background:var(--orange)}.score-divider{font:1000 italic 16px system-ui;color:#84909b;letter-spacing:-.05em;padding:0 12px}.board-holder{position:relative;background:#d6b78a;overflow:hidden;padding:8px}.board-holder canvas{display:block;width:100%;aspect-ratio:4/3;height:auto;touch-action:none;user-select:none;-webkit-user-select:none;cursor:crosshair;border:1px solid #907653}.desk-corner{position:absolute;width:25px;height:25px;border-color:#b7a185;pointer-events:none;z-index:2}.desk-corner.tl{top:3px;left:3px;border-left:2px solid;border-top:2px solid}.desk-corner.tr{top:3px;right:3px;border-right:2px solid;border-top:2px solid}.desk-corner.bl{bottom:3px;left:3px;border-left:2px solid;border-bottom:2px solid}.desk-corner.br{bottom:3px;right:3px;border-right:2px solid;border-bottom:2px solid}.game-toast{position:absolute;left:50%;top:16px;transform:translateX(-50%);max-width:88%;min-width:min(260px,84%);background:#182229ec;border:1px solid #6b7f84;border-radius:100px;color:#f4f5e9;text-align:center;font-size:11px;padding:10px 14px;pointer-events:none;box-shadow:0 8px 30px #17211a50}.game-toast.hide{opacity:0;transition:opacity .4s}.board-bottom{display:flex;gap:8px;justify-content:space-between;padding:11px 16px;background:#17212a;font:800 9px system-ui;color:#82929d;letter-spacing:.04em}.tiny-square{display:inline-block;width:6px;height:6px;background:var(--cyan);margin-right:6px}.game-prompt{min-height:78px;display:flex;align-items:center;gap:13px;margin-top:13px;border-radius:10px;border:1px solid #3c4a52;background:#1c252d;padding:14px 17px}.pulse{width:9px;height:9px;background:var(--cyan);box-shadow:0 0 0 5px #91d9d023;border-radius:50%;flex:none}.game-prompt strong{display:block;font:900 14px system-ui;letter-spacing:.09em}.game-prompt span{display:block;font-size:11px;color:#a7b6bd;margin-top:5px}.power-box{margin-left:auto;min-width:89px;flex-shrink:0}.power-box span{font:900 9px system-ui;letter-spacing:.12em;color:#b8c0c2}.power-track{margin-top:8px;width:100%;height:6px;background:#36434a;border-radius:100px;overflow:hidden}#power-fill{height:100%;width:0;background:linear-gradient(90deg,var(--cyan),#edc46b,var(--orange));transition:width .05s}.touch-help{text-align:center;padding:13px 7px 20px;font-size:10px;color:#80929c}.sidebar{border:1px solid #35424c;background:#172029;border-radius:14px;padding:24px 22px 16px;box-shadow:0 10px 30px #0002}.side-section{padding-bottom:25px;margin-bottom:22px;border-bottom:1px solid #3b4953}.side-section:last-of-type{border-bottom:0;margin-bottom:0}.section-head{font:900 11px system-ui;color:#e3eae4;letter-spacing:.15em;display:flex;align-items:center;gap:11px;margin-bottom:17px}.side-index{color:var(--orange);font-size:10px}.mode-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.mode{border-radius:9px;padding:16px 10px;background:#212d36;border:1px solid #45545e;color:#b3c1c9;text-align:left;display:flex;flex-direction:column;gap:5px;min-width:0}.mode.active{background:#2b3c3c;border-color:#91d9d0;box-shadow:inset 0 0 0 1px #91d9d046}.mode-emoji{color:var(--cyan);font-size:26px;height:30px;line-height:1}.mode strong{font:900 11px system-ui;letter-spacing:.08em}.mode small{font-size:10px;color:#8e9da7}.mode:hover{border-color:var(--cyan)}.rules{padding:0;list-style:none;margin:0}.rules li{display:flex;align-items:center;gap:13px;padding:10px 0;border-bottom:1px dashed #435058;font-size:12px;color:#d8dcdb;font-weight:600}.rules li>span{font:900 17px system-ui;color:#627787}.cyan{color:var(--cyan)}.orange{color:var(--orange)}.rule-note{font-size:10px;line-height:1.85;color:#8297a5;margin:16px 0 0}.eraser-info{display:flex;align-items:center;gap:12px;padding:9px 0}.mini-eraser{width:47px;height:24px;border-radius:4px;border:2px solid #f7f5e6;transform:rotate(-10deg);box-shadow:3px 4px 0 #0a111b3a;flex:none}.mini-eraser.speed{background:linear-gradient(#b3e9df 50%,#3b9e98 50%)}.mini-eraser.normal{background:linear-gradient(#f6bd9d 50%,#eb744f 50%)}.mini-eraser.heavy{background:linear-gradient(#e3c5fb 50%,#976da5 50%)}.eraser-info strong{display:block;font-size:12px}.eraser-info small{display:block;font-size:10px;color:#8195a2;margin-top:3px}.stat-bars{font-size:10px;margin-left:auto;color:#b9c8bc;letter-spacing:2px}.side-bottom{font:800 9px system-ui;color:#657a88;display:flex;flex-wrap:wrap;justify-content:space-between;gap:6px;letter-spacing:.04em}footer{border-top:1px solid #34414a;margin:50px 0 25px;padding-top:20px;display:flex;justify-content:space-between;gap:10px;font:800 9px system-ui;letter-spacing:.1em;color:#637783}footer a{color:#a2b1b8;text-decoration:none}.result-screen{position:absolute;inset:8px;background:#13212ad6;display:grid;place-items:center;z-index:5;backdrop-filter:blur(5px);padding:20px;text-align:center}.result-inner{animation:pop .3s ease-out}.result-kicker{font:900 11px system-ui;color:#a4d7ce;letter-spacing:.25em}.result-title{font:1000 italic clamp(40px,9vw,75px) system-ui;letter-spacing:-.07em;color:#ffe39a;margin:12px 0 4px;text-shadow:3px 5px 0 #182321}.result-inner p{font-size:12px;color:#d4e2df;margin:0 0 23px}.action-primary{color:#121b20;background:#b9e7d4;border:0;border-radius:8px;padding:13px 26px;font-weight:900;font-size:13px;box-shadow:4px 4px 0 #111b21}.action-primary span{margin-left:20px}@keyframes pop{from{opacity:0;transform:translateY(18px) scale(.95)}to{opacity:1;transform:none}}
@media(max-width:900px){.game-grid{grid-template-columns:minmax(0,1fr)}.sidebar{display:grid;grid-template-columns:1fr 1fr;gap:0 28px}.side-section{margin:0}.types-section{grid-column:2}.side-bottom{grid-column:1/-1;padding-top:15px}}
@media(max-width:600px){.topbar{width:calc(100% - 28px);height:66px}.brand-icon{height:34px;width:34px;font-size:21px}.brand{font-size:9px;gap:9px}.brand small{font-size:8px}.topright{font-size:8px}.topright .build{display:none}.page{width:calc(100% - 22px)}.intro{padding:31px 3px 22px}.eyebrow{font-size:8px;gap:9px;letter-spacing:.08em}.pill{padding:7px;font-size:8px}.intro h1{font-size:clamp(34px,9.4vw,51px);margin:17px 0 12px}.intro p{font-size:11px}.game-grid{gap:11px}.arena-wrap{border-radius:11px}.arena-topline{height:44px;padding:0 9px}.match-indicator{font-size:8px}.match-indicator #round-label{padding-left:4px}.arena-controls button{padding:6px;font-size:9px}.arena-controls button span{display:none}.score-row{padding:11px 13px;min-height:71px}.team strong{font-size:15px}.team-tag{font-size:8px}.board-holder{padding:5px}.game-toast{top:10px;font-size:9px;padding:8px 9px}.board-bottom{font-size:8px;padding:10px 8px}.board-bottom>span:first-child{display:none}.game-prompt{margin-top:10px;padding:12px 11px;gap:9px;min-height:72px}.game-prompt strong{font-size:12px}.game-prompt span{font-size:10px}.power-box{min-width:70px}.touch-help{font-size:9px}.sidebar{display:block;padding:19px}.side-section{margin-bottom:20px;padding-bottom:17px}.mode-grid{gap:9px}.mode{padding:11px}.types-section{display:none}.side-bottom{padding:0}.result-title{font-size:47px}footer{margin-top:25px;font-size:8px}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}