:root{color-scheme:dark;--bg:#081321;--paper:#101f32;--surface:#192c41;--ink:#f4f8ff;--text:#c8d5e5;--muted:#a2b4ca;--line:#31465d;--green:#c8ff3d;--accent:#c8ff3d;--action-ink:#10200b;--gold:#ffcf66;--rank:#58e0cf;--teal:#45e0cb;--font-sans:Inter,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}
:root[data-theme=light]{color-scheme:light;--bg:#f3f7fc;--paper:#ffffff;--surface:#e5edf6;--ink:#10243b;--text:#344e68;--muted:#506780;--line:#b9cadd;--green:#335f00;--accent:#c8ff3d;--action-ink:#10200b;--gold:#865600;--rank:#086d67;--teal:#08776c}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.65 var(--font-sans)}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer;color:inherit;border:0;background:none}button:disabled{cursor:default}button,a,input{touch-action:manipulation}h1,h2,h3,p{margin-top:0}h1,h2,h3{font-weight:600;line-height:1.22;letter-spacing:-.03em}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--gold);outline-offset:4px}[hidden]{display:none!important}.container{width:min(1180px,calc(100% - 64px));margin-inline:auto}.eyebrow{font-size:10px;font-weight:650;letter-spacing:1.7px;color:var(--green);text-transform:uppercase}.text-link{font-size:12px;color:var(--green)}.live-dot{display:inline-block;width:6px;height:6px;flex-shrink:0;background:currentColor;border-radius:50%}.arena-header{display:flex;align-items:center;justify-content:space-between;height:92px;border-bottom:1px solid var(--line);gap:24px;margin-bottom:28px}.arena-brand{display:flex;align-items:center;gap:11px;line-height:1.02;font-size:22px;letter-spacing:-.6px}.arena-brand>span{display:grid;place-items:center;background:var(--accent);color:var(--action-ink);font:34px Georgia;width:42px;height:42px;border-radius:12px}.arena-brand small{display:block;font-size:8px;font-weight:600;letter-spacing:4.7px;margin-top:8px}.arena-header nav{display:flex;align-items:center;gap:27px;font-size:13px}.nav-online{display:flex;align-items:center;gap:9px;padding:10px 17px;background:var(--accent);color:var(--action-ink);font-weight:700;border-radius:30px}.nav-online:hover{filter:brightness(1.06)}.nav-practice{color:var(--text)}.nav-practice:hover{color:var(--ink)}.header-tools{display:flex;gap:10px;align-items:center}.theme-toggle{display:grid;place-items:center;width:37px;height:37px;font-size:22px;border:1px solid var(--line);border-radius:50%;color:var(--text)}.language{display:flex;gap:9px;font-size:11px;border:1px solid var(--line);border-radius:24px;padding:8px 12px}.language a{color:var(--muted)}.language a[aria-current]{color:var(--ink);font-weight:750}.arena-footer{border-top:1px solid var(--line);margin-top:65px;padding:36px 0 24px;color:var(--muted)}.footer-top{display:flex;align-items:center;gap:30px;margin-bottom:30px}.footer-brand{color:var(--ink);font-size:20px}.footer-top p{margin:0;font-size:12px}.footer-support{margin-left:auto;font-size:12px}.footer-bottom{display:flex;justify-content:space-between;gap:24px;border-top:1px solid var(--line);padding-top:20px;font-size:10px}.footer-bottom nav{display:flex;gap:17px;flex-wrap:wrap}.footer-bottom button{padding:0;font-size:inherit;color:inherit}.footer-bottom a:hover,.footer-bottom button:hover,.footer-support:hover{color:var(--ink);text-decoration:underline}.skip{position:fixed;top:-100px;left:12px;z-index:100;background:var(--accent);color:var(--action-ink);padding:10px}.skip:focus{top:10px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.main-action,.quiet-action{display:inline-flex;align-items:center;justify-content:space-between;gap:25px;min-height:49px;font-size:13px;font-weight:650;border-radius:9px;padding:13px 21px}.main-action{background:var(--accent);color:var(--action-ink);border:1px solid transparent}.main-action:hover{filter:brightness(1.05)}.quiet-action{border:1px solid var(--line);color:var(--text);background:transparent}.quiet-action:hover{background:var(--surface);color:var(--ink)}.online-hero{display:grid;grid-template-columns:1.15fr 1fr;align-items:center;gap:65px;padding:49px 0 65px}.online-copy>.eyebrow{display:flex;align-items:center;gap:9px;margin-bottom:26px}.online-hero h1{font-size:clamp(40px,4.5vw,64px);font-weight:550;letter-spacing:-2.4px;line-height:1.08;margin-bottom:24px}.online-intro{font-size:16px;line-height:1.85;color:var(--text);max-width:440px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.hero-facts{display:flex;gap:19px;flex-wrap:wrap;color:var(--muted);font-size:10px;margin-top:24px}.hero-facts span:before{content:'·';color:var(--green);margin-right:6px}.hero-board-scene{background:var(--paper);border:1px solid var(--line);border-radius:22px;padding:23px 25px 20px;position:relative}.scene-label{display:flex;justify-content:space-between;font-size:9px;letter-spacing:2px;color:var(--muted);margin-bottom:18px}.scene-label>span:last-child{color:var(--gold);font-size:17px}.scene-board{height:330px;display:grid;place-items:center;background:#b3b998;border-radius:10px;padding:20px;overflow:hidden}.scene-board svg{width:auto;max-width:100%;max-height:100%;transform:rotate(-7deg);box-shadow:0 10px 20px #10231b33;border-radius:7px}.scene-caption{display:flex;align-items:center;gap:12px;padding-top:20px}.scene-caption strong{display:block;font-size:12px;font-weight:600}.scene-caption small{display:block;font-size:9px;color:var(--muted);margin-top:4px}.avatar-pair{display:flex;flex-shrink:0;padding-right:5px}.avatar-pair>span{display:grid;place-items:center;width:34px;height:34px;background:#b2ccb2;color:#253b34;border:3px solid var(--paper);border-radius:50%;font:23px Georgia}.avatar-pair>span+span{background:#dfbd96;color:#684232;margin-left:-8px;font-size:17px}.ways-to-play{display:grid;grid-template-columns:repeat(3,1fr);gap:35px;border-block:1px solid var(--line);padding:30px 0 32px}.way-symbol{font-size:23px;color:var(--green)}.ways-to-play h2{font-size:16px;margin:10px 0}.ways-to-play p{font-size:12px;color:var(--muted);margin:0;max-width:260px}.practice-section{padding-top:65px}.section-title{display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:27px}.section-title .eyebrow{margin-bottom:11px}.section-title h2{font-size:30px;margin:0}.section-title>p{font-size:12px;color:var(--muted);max-width:300px;margin:0}.practice-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.practice-card{background:var(--paper);border:1px solid var(--line);border-radius:15px;overflow:hidden}.practice-art{display:block;height:234px;position:relative;background:#aeb99d;padding:20px;overflow:hidden}.practice-art>span:first-child{display:block;text-align:center;height:100%}.practice-art svg{height:100%;max-width:100%;filter:drop-shadow(0 6px 8px #25392a35);border-radius:5px}.practice-card:nth-child(2) .practice-art{background:#cfba98}.practice-tag{position:absolute;top:15px;left:16px;padding:4px 9px;border:1px solid #25433633;color:#20382e;background:#f5f2e5dc;border-radius:20px;font-size:9px;letter-spacing:1px}.practice-card-body{padding:23px 25px}.practice-card h3{font-size:24px;margin-bottom:10px}.practice-card p{font-size:12px;color:var(--muted)}.practice-links{display:flex;gap:20px;justify-content:space-between;border-top:1px solid var(--line);padding-top:16px;font-size:12px;color:var(--green)}.practice-links a:hover{text-decoration:underline}.home-note{display:flex;align-items:center;justify-content:space-between;gap:35px;padding:36px;margin-top:50px;background:var(--paper);border:1px solid var(--line);border-radius:15px}.home-note h2{font-size:29px;margin-bottom:10px}.home-note p:not(.eyebrow){font-size:12px;color:var(--muted);max-width:510px;margin:0}
.xq-play-page{padding-top:0}.xq-page .xq-heading{margin:12px 0 27px}.xq-play-page .xq-heading h1{font-size:32px;color:var(--ink)}.xq-intro{margin-bottom:0;color:var(--text)}.xq-layout{gap:25px}.xq-game-card,.xq-panel,.mp-panel,.mp-rating-cards article{background:var(--paper);color:var(--ink);border-color:var(--line)}.xq-panel h2{color:var(--ink)}.xq-status-panel{background:var(--surface);border-color:var(--line)}.xq-primary{background:var(--accent);color:var(--action-ink);border:1px solid transparent;min-height:46px;border-radius:8px}.xq-primary:hover{background:var(--accent);filter:brightness(1.06)}.xq-help,.xq-setup,.xq-result,.ch-promotion,.mp-confirm,.mp-level-dialog{background:var(--paper);color:var(--ink);border-color:var(--line)}.xq-help h2,.xq-setup h2{margin:0}.xq-setup-levels label{background:var(--surface);color:var(--text)}.xq-setup-levels label:has(:checked){background:var(--surface);color:var(--ink);border-color:var(--green);box-shadow:inset 3px 0 var(--green)}.xq-secondary button,.mp-action-pair button,.mp-outline{background:var(--surface);color:var(--ink);border-color:var(--line)}.xq-secondary button:not(:disabled):hover{border-color:var(--green)}.xq-secondary button:disabled{opacity:.45}.xq-how{color:var(--green)}.xq-table{color:#263d34;background:#e6e5d7;--text:#344c40;--muted:#4f6456;--ink:#263d34;--line:#4d655036;--green:#35614c}.xq-table .mp-level-badge{color:#315f48;background:#e8eddf;border-color:#b9cbb4;--rank:#315f48}.xq-table-note{color:#4b6050}.xq-player small{color:var(--muted)}.xq-turn-dot.is-active{background:#41745b}.mp-account button{color:var(--green);background:var(--surface);border:1px solid var(--line);border-radius:30px}.mp-account a{color:var(--muted)}.mp-panel input:not([type=radio]),.mp-share input{background:var(--bg);color:var(--ink);border-color:var(--line)}.mp-game-choices label>span{background:var(--surface);color:var(--text);border-color:var(--line)}.mp-game-choices input:checked+span{background:var(--surface);color:var(--ink);border-color:var(--green);box-shadow:inset 0 0 0 1px var(--green)}.mp-room-list a,.mp-open-entry{background:var(--surface);border-color:var(--line);color:var(--text)}.mp-room-list a:hover{border-color:var(--green)}.mp-clocks{color:#2a4538}.mp-clocks .mp-clock-caption small{color:#76551e}.mp-lobby{max-width:100%;grid-template-columns:1fr 1fr;gap:24px;align-items:start}.mp-lobby>.mp-panel{padding:28px;border-radius:15px}.mp-lobby h2{font-size:25px;margin-bottom:24px}.mp-lobby h3{font-size:16px}.mp-page>.xq-heading{margin-bottom:28px}.mp-lobby .mp-game-choices{margin-bottom:20px}.mp-points-profile{max-width:none;margin:40px 0 0;padding-top:30px;border-top:1px solid var(--line)}.mp-points-profile>h2{font-size:20px;color:var(--ink);margin-bottom:18px}.mp-rating-cards{gap:18px}.mp-rating-cards article{padding:23px;border-radius:14px}.rating-card-top{display:flex;gap:15px;align-items:center;margin-bottom:12px}.mp-rating-cards h3{font-size:12px;font-weight:500;color:var(--muted);margin:0 0 6px}.mp-rating-cards strong{font-size:23px;letter-spacing:-.7px;color:var(--ink)}.mp-rating-cards small{color:var(--muted);font-size:11px}.mp-rating-track{background:var(--surface);height:5px}.mp-rating-track span{background:var(--green)}.mp-points-rules{color:var(--text);font-size:12px}.mp-points-rules summary{color:var(--green)}.mp-level-badge{display:inline-flex;align-items:center;gap:7px;vertical-align:middle;color:var(--rank);background:var(--surface);border-color:var(--line);border-radius:8px;font-size:11px;line-height:1.5;padding:6px 9px;max-width:100%;text-align:left}.mp-level-badge:hover{background:var(--surface);border-color:var(--rank)}.level-icon{width:20px;height:20px;flex-shrink:0;vertical-align:middle}.rank-medallion{display:grid;place-items:center;background:var(--surface);color:var(--rank);width:56px;height:56px;flex-shrink:0;border:1px solid var(--line);border-radius:15px}.rank-medallion .level-icon{width:31px;height:31px}.rank-dialog-icon{width:68px;height:68px;display:grid;place-items:center;background:var(--surface);color:var(--rank);border:1px solid var(--line);border-radius:18px;margin-bottom:20px}.rank-dialog-icon svg{width:40px;height:40px}[data-rank="3"],[data-rank="4"]{--rank:#a7cbdc}[data-rank="5"],[data-rank="6"]{--rank:#c5b9df}[data-rank="7"],[data-rank="8"]{--rank:#e0b4b7}[data-rank="9"],[data-rank="10"]{--rank:#e0bd7e}:root[data-theme=light] [data-rank="3"],:root[data-theme=light] [data-rank="4"]{--rank:#356477}:root[data-theme=light] [data-rank="5"],:root[data-theme=light] [data-rank="6"]{--rank:#67508a}:root[data-theme=light] [data-rank="7"],:root[data-theme=light] [data-rank="8"]{--rank:#8d4657}:root[data-theme=light] [data-rank="9"],:root[data-theme=light] [data-rank="10"]{--rank:#785713}.mp-level-dialog .mp-level-range{color:var(--green)}.mp-level-dialog .mp-action-pair{margin:23px 0 12px}.mp-level-dialog .mp-action-pair button{padding:10px}.mp-award{background:var(--surface);color:var(--green);border-color:var(--line)}.mp-onboarding{background:var(--paper);color:var(--ink);border-color:var(--line)}.mp-google-auth{margin-bottom:16px}.google-load{display:flex;align-items:center;justify-content:center;gap:12px;border:1px solid var(--line);border-radius:8px;background:var(--accent);color:var(--action-ink);width:100%;min-height:48px;font-size:13px;font-weight:650}.google-load>span{background:#fff;color:#34526e;border-radius:50%;height:23px;width:23px;font-weight:700}.mp-auth-note{color:var(--muted)}.mp-onboarding [data-signin]{background:var(--surface);color:var(--ink);border:1px solid var(--line);justify-content:center}.mp-onboarding form button{margin-top:20px}.ch-promotion .ch-promotions button{background:#d2c9b3}.ch-promotion .ch-promotion-cancel{background:none;color:var(--text)}.xq-result-symbol{color:#2e6251}.xq-result-review{color:var(--green)}
.info-page{max-width:850px;padding:20px 0 25px}.info-page header{margin:30px 0 40px;padding-bottom:28px;border-bottom:1px solid var(--line)}.info-page h1{font-size:44px;letter-spacing:-1.5px;margin:14px 0 20px}.info-intro{font-size:20px;color:var(--text);max-width:650px;line-height:1.6}.effective{font-size:11px;color:var(--muted);margin-bottom:0}.info-body section{margin-bottom:32px;max-width:740px}.info-body h2{font-size:20px;margin-bottom:12px}.info-body p{font-size:14px;line-height:1.9;color:var(--text)}.info-body a:not(.main-action){color:var(--green);text-decoration:underline;text-underline-offset:3px}.info-body .main-action{margin-top:10px}
.cookie-banner{position:fixed;z-index:40;bottom:18px;left:50%;transform:translateX(-50%);width:min(1110px,calc(100% - 32px));background:var(--paper);border:1px solid var(--line);box-shadow:0 14px 60px #06140e45;border-radius:13px;padding:22px 25px;display:flex;align-items:center;gap:25px}.cookie-banner>div:first-child{flex:1}.cookie-banner strong{font-size:13px}.cookie-banner p{font-size:11px;line-height:1.75;color:var(--muted);margin:7px 0 0;max-width:550px}.cookie-banner p a{text-decoration:underline;color:var(--green)}.cookie-banner-actions{display:flex;gap:8px;flex-wrap:wrap}.cookie-banner-actions button,.cookie-dialog-actions button{min-height:42px;padding:10px 14px;border:1px solid var(--line);border-radius:7px;background:var(--surface);color:var(--ink);font-size:11px;font-weight:600}.cookie-banner-actions button:hover,.cookie-dialog-actions button:hover{border-color:var(--green)}.cookie-dialog{max-width:580px;width:calc(100% - 32px);max-height:calc(100dvh - 32px);overflow:auto;border:1px solid var(--line);border-radius:17px;padding:27px;background:var(--paper);color:var(--ink)}.cookie-dialog::backdrop{background:#0d1f24b0;backdrop-filter:blur(3px)}.cookie-dialog header{display:flex;align-items:start;justify-content:space-between;gap:15px;margin-bottom:20px}.cookie-dialog h2{font-size:25px;margin:0}.cookie-dialog header>.eyebrow{margin-bottom:8px}.cookie-dialog header>button{font-size:27px;min-width:36px;min-height:36px}.cookie-dialog>p{font-size:12px;color:var(--text);line-height:1.8}.cookie-status{padding:12px 14px;border-radius:8px;border:1px solid var(--line);background:var(--surface)}.cookie-option{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:18px 0;border-top:1px solid var(--line)}.cookie-option strong{font-size:13px}.cookie-option p,.cookie-option-note{display:block;margin:5px 0 0;font-size:11px;line-height:1.7;color:var(--muted);max-width:400px}.cookie-option>span:last-child:not(:first-child){font-size:10px;color:var(--green);white-space:nowrap}.cookie-option input{width:19px;height:19px;accent-color:var(--green);flex-shrink:0}.cookie-dialog-actions{display:flex;justify-content:flex-end;flex-wrap:wrap;gap:10px;border-top:1px solid var(--line);padding-top:20px;margin-top:20px}.cookie-dialog-actions [data-consent-save]{background:var(--accent);color:var(--action-ink)}body:has(.cookie-banner:not([hidden])){padding-bottom:130px}
@media(max-width:1000px){.online-hero{gap:30px}.scene-board{height:280px}.online-hero h1{font-size:43px}.cookie-banner{display:block}.cookie-banner p{max-width:none}.cookie-banner-actions{margin-top:14px}.footer-bottom{display:block}.footer-bottom nav{margin-top:15px}.mp-lobby>.mp-panel{padding:24px}}
@media(max-width:720px){.container{width:calc(100% - 32px)}.arena-header{height:77px;gap:10px;margin-bottom:22px}.arena-brand{font-size:17px;gap:7px}.arena-brand>span{width:34px;height:34px;font-size:27px;border-radius:9px}.arena-brand small{font-size:7px;letter-spacing:3.7px;margin-top:7px}.arena-header nav{margin-left:auto;gap:0}.nav-online{font-size:10px;padding:9px 10px;gap:6px}.nav-online .live-dot{display:none}.nav-practice{display:none}.header-tools{gap:6px}.theme-toggle{width:30px;height:30px;font-size:18px}.language{font-size:9px;gap:5px;padding:6px 7px}.online-hero{grid-template-columns:1fr;padding:28px 0 35px;gap:35px}.online-hero h1{font-size:43px;letter-spacing:-1.8px}.online-copy>.eyebrow{font-size:8px;letter-spacing:1.1px;margin-bottom:20px}.online-intro{font-size:14px;line-height:1.8}.hero-actions{gap:9px;margin-top:22px}.main-action,.quiet-action{font-size:11px;gap:14px;padding:12px 15px;min-height:46px}.hero-facts{gap:12px;font-size:8px;margin-top:20px}.hero-board-scene{padding:17px;max-width:480px;width:100%;margin:auto}.scene-board{height:280px}.scene-caption strong{font-size:11px}.ways-to-play{grid-template-columns:1fr;gap:22px;padding:27px 0}.ways-to-play>div{display:grid;grid-template-columns:32px 1fr;gap:0 10px}.ways-to-play .way-symbol{grid-row:1/3}.ways-to-play h2{font-size:14px;margin:0 0 6px}.ways-to-play p{font-size:11px;max-width:none}.practice-section{padding-top:40px}.section-title{display:block;margin-bottom:22px}.section-title h2{font-size:27px}.section-title>p{margin-top:15px;max-width:none;font-size:12px}.practice-grid{grid-template-columns:1fr;gap:20px}.practice-art{height:224px}.home-note{display:block;padding:25px;margin-top:30px}.home-note .quiet-action{margin-top:20px}.home-note h2{font-size:26px}.home-note .eyebrow{font-size:9px}.xq-page{padding-inline:0}.xq-play-page .xq-heading h1{font-size:28px}.xq-heading .mp-friend-link{display:inline-block;margin-top:12px}.mp-account{margin-top:16px}.mp-lobby{grid-template-columns:1fr;gap:18px}.mp-lobby>.mp-panel{padding:22px}.mp-lobby h2{font-size:23px;margin-bottom:20px}.mp-rating-cards{grid-template-columns:1fr}.mp-rating-cards article{padding:20px}.mp-points-profile{margin-top:30px;padding-top:25px}.info-page{padding-top:12px}.info-page h1{font-size:35px}.info-intro{font-size:17px}.info-page header{margin:25px 0 30px}.info-body p{font-size:13px}.info-body h2{font-size:19px}.arena-footer{margin-top:42px;padding-top:27px}.footer-top{display:block;margin-bottom:24px}.footer-top p{margin:17px 0 10px;font-size:11px}.footer-support{font-size:11px}.footer-bottom{font-size:10px}.footer-bottom nav{gap:12px 17px;line-height:1.9}.cookie-banner{bottom:10px;padding:18px}.cookie-banner p{font-size:10px}.cookie-banner-actions{display:grid;grid-template-columns:1fr 1fr 1fr;gap:6px}.cookie-banner-actions button{font-size:9px;padding:8px 6px}.cookie-dialog{padding:22px}.cookie-dialog h2{font-size:23px}.cookie-dialog-actions button{flex:1}body:has(.cookie-banner:not([hidden])){padding-bottom:230px}}
@media(max-width:370px){.theme-toggle{display:none}.arena-brand{font-size:16px}.arena-brand>span{width:30px;height:30px}.nav-online{font-size:9px;padding:8px}.language{font-size:8px}.online-hero h1{font-size:38px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}
.mp-rating-cards article>.mp-level-badge{display:inline-flex}.mp-panel p{line-height:1.8}.cookie-banner-actions button{font-size:11px}@media(max-width:720px){.cookie-banner p{font-size:11px}.cookie-banner-actions button{font-size:10px}}
.mp-game-choices label{background:var(--surface);color:var(--text);border-color:var(--line);border-radius:9px;min-height:52px;padding:13px 14px;gap:9px}.mp-game-choices label>span{background:transparent;color:inherit;box-shadow:none;border:0}.mp-game-choices label:has(input:checked){background:var(--accent);color:var(--action-ink);border-color:var(--accent)}.mp-game-choices input:checked+span{background:transparent;color:inherit;box-shadow:none;border:0}.mp-game-choices input{accent-color:#285e4c;flex-shrink:0}.mp-time-rules{background:var(--surface);color:var(--text);border-color:var(--line);font-size:11px;line-height:1.8}.mp-lobby .mp-note{color:var(--muted)}
.mp-game-choices>div{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.mp-game-choices label{min-width:0;font-size:12px}.mp-game-choices label>span{overflow-wrap:normal}

/* Match controls belong to the board workspace on every screen size. */
.board-layout{display:block;max-width:720px;margin:0 auto}.board-workspace{--paper:#f5f3e9;--surface:#e5e8dc;--bg:#faf8ef;--ink:#263d34;--text:#344c40;--muted:#4f6456;--line:#4d655036;--green:#35614c;--accent:#35614c;--action-ink:#fffdf4;--rank:#315f48;padding:18px}.board-stage{position:relative;isolation:isolate;scroll-margin-top:16px}.board-stage>[data-board]>.xq-board{max-width:none}.board-stage:has(>.board-ready:not([hidden])),.board-stage:has(>.board-waiting:not([hidden])){min-height:320px}.board-stage:has(>.board-ready:not([hidden])):before,.board-stage:has(>.board-waiting:not([hidden])):before,.board-stage:has(>.board-dialog[open]):before{content:'';position:absolute;inset:0;background:#142b24b3;border-radius:12px;z-index:5;pointer-events:none}.board-ready,.board-waiting{position:absolute;z-index:6;left:50%;top:50%;transform:translate(-50%,-50%);width:calc(100% - 32px);max-width:420px;padding:24px;border:1px solid #779182;border-radius:14px;background:#f5f3e9;color:#263d34;box-shadow:0 12px 40px #10251e40}.board-ready strong{display:block;font-size:23px;line-height:1.3}.board-ready p{font-size:13px;line-height:1.7;margin:10px 0 18px;color:#344c40}.board-ready .xq-primary{justify-content:center}.board-waiting h3{font-size:21px}.board-waiting label{margin-top:14px}.board-waiting p{margin:5px 0 0}.board-workspace .xq-primary{background:#35614c;color:#fffdf4}.board-workspace .xq-status-panel{min-height:0;padding:0 2px 14px;margin-bottom:14px;border:0;border-bottom:1px solid var(--line);border-radius:0;background:transparent}.board-workspace .xq-status-panel .eyebrow{font-size:10px}.board-workspace .xq-status-panel h2{font-size:23px;margin:5px 0 0}.board-workspace .xq-status-panel p{margin-top:5px}.board-controls{display:grid;gap:12px;margin-top:16px}.board-controls>.xq-panel{background:transparent;color:var(--ink);padding:16px 0 0;border:0;border-top:1px solid var(--line);border-radius:0}.board-controls>.xq-panel:has([data-new]){display:grid;grid-template-columns:1fr 1fr;gap:10px 14px}.board-controls .xq-setting-note{display:none}.board-controls [data-new],.board-controls .xq-secondary,.board-settings,.board-controls [data-playing-actions],.board-controls [data-finished-actions]{grid-column:1/-1}.board-controls .xq-secondary{margin-top:0}.board-controls [data-playing-actions]{display:grid;grid-template-columns:1fr 1fr;gap:10px}.board-controls [data-draw-incoming]{grid-column:1/-1;padding:12px;border-radius:8px;background:var(--surface)}.board-controls .mp-danger,.board-controls .mp-outline{margin:0;background:var(--paper)}.board-controls .mp-danger{color:#97372d}.board-controls .xq-switches{margin:0;padding:5px 0;border:0;display:flex;gap:24px;flex-wrap:wrap}.board-controls .xq-switches label{gap:12px;flex:1;min-width:180px}.board-settings{margin-top:14px}.board-settings summary{cursor:pointer;font-size:12px;color:var(--green);min-height:32px;display:list-item}.board-controls .xq-stats{margin:10px 0}.board-controls .xq-history{margin-top:0}.board-workspace .mp-room-bar{margin:0 0 14px;max-width:none}.board-workspace .mp-feedback{margin:0 0 14px}.board-dialog{position:fixed!important;right:auto!important;bottom:auto!important;margin:0!important;transform:translateX(-50%);max-width:calc(100vw - 20px)!important;overflow:auto;padding:22px!important;box-sizing:border-box;box-shadow:0 12px 45px #10251e50}.board-dialog::backdrop{background:transparent!important;backdrop-filter:none!important}.board-dialog .xq-result-symbol{width:44px;height:44px;font-size:27px;margin:0 auto 10px}.board-dialog h2{font-size:26px}.board-dialog .xq-setup-levels{gap:6px;margin:12px 0}.board-dialog .xq-setup-levels label{min-height:34px;padding:6px 10px}.board-dialog .xq-help-top{margin-bottom:12px}.board-dialog .xq-side{margin:12px 0}.board-dialog p{font-size:12px;line-height:1.65}.board-dialog .xq-setup-actions{margin-top:14px}.board-workspace .xq-engine{margin-bottom:0}.board-workspace .xq-notice:empty{display:none}.board-workspace .xq-table-note{margin:10px 0}.board-workspace .xq-captured{padding-top:8px}.board-workspace .mp-rating-line{font-size:10px;margin:4px 0 0}.board-workspace .xq-player{margin:10px 0}.board-workspace .xq-player small{margin-top:2px}
@media(max-width:720px){.board-workspace{padding:12px;border-radius:12px}.board-ready,.board-waiting{padding:18px;width:calc(100% - 24px)}.board-ready strong{font-size:20px}.board-workspace .xq-status-panel h2{font-size:20px}.board-workspace .mp-room-bar{max-width:none}.board-dialog{padding:16px!important}.board-dialog .xq-help h2{font-size:22px}.board-controls>.xq-panel:has([data-new]){gap:9px}.board-controls .xq-switches{gap:0}.board-workspace .mp-clocks{margin-bottom:10px}.board-controls .xq-stats dd{font-size:20px}.board-dialog .xq-setup-levels label{font-size:12px}}

.xq-play-page .board-layout{max-width:640px}.board-stage{max-width:560px;margin-inline:auto}.xq-play-page .board-stage>[data-board]{width:100%;max-width:none;margin:0}.board-workspace .xq-status-panel{padding:0 2px 14px}.board-workspace .xq-status-panel h2{font-size:23px}.board-controls>.xq-panel{padding:16px 0 0}.board-stage>.board-waiting{padding:22px}

.board-dialog .xq-setup-levels{grid-template-columns:repeat(2,minmax(0,1fr));gap:6px}.board-dialog .xq-setup-levels label{gap:7px}.board-dialog .xq-setup-levels legend{margin-bottom:8px}.board-dialog .xq-setup-levels label:last-child{grid-column:1/-1}

.cookie-option[hidden],[data-google-settings][hidden],[data-google-unavailable][hidden]{display:none!important}[data-google-settings]{border-top:1px solid var(--line);padding:16px 0;margin-top:16px}[data-google-settings] p{font-size:12px;line-height:1.7;color:var(--text);margin-bottom:12px}[data-google-settings] button{font-size:12px;width:100%;justify-content:center}.cookie-dialog .cookie-option input{min-width:20px;min-height:20px}

.guide-page{max-width:1000px}.guide-hero{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:36px;align-items:center}.guide-hero h1{font-size:42px}.guide-hero .info-intro{font-size:17px}.guide-art{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px;display:flex;align-items:center;justify-content:center}.guide-art svg{display:block;width:100%;height:auto;max-height:260px}.guide-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}.guide-actions .main-action,.guide-actions .quiet-action{font-size:12px;min-height:44px}.guide-contents{display:flex;flex-wrap:wrap;gap:10px 18px;padding:0 0 30px;margin-bottom:30px;border-bottom:1px solid var(--line)}.guide-contents a{font-size:12px;color:var(--green);text-decoration:underline;text-underline-offset:4px}.guide-page .info-body{max-width:760px;margin:0 auto}.guide-page .info-body section{scroll-margin-top:24px}.guide-page .info-body h2{font-size:24px;letter-spacing:-.4px;margin-bottom:18px}.guide-pieces{margin:0}.guide-pieces>div{display:grid;grid-template-columns:150px 1fr;gap:18px;padding:14px 0;border-bottom:1px solid var(--line);font-size:14px;line-height:1.8}.guide-pieces dt{font-weight:650;color:var(--ink)}.guide-pieces dd{margin:0;color:var(--text)}.guide-steps,.guide-page .info-body ul{padding-left:22px;color:var(--text);font-size:14px;line-height:1.9}.guide-steps li{padding-left:7px;margin:0 0 16px}.guide-tip{padding:18px 22px;border:1px solid var(--line);border-left:3px solid var(--green);border-radius:10px;background:var(--surface);margin:22px 0}.guide-tip p{margin:0}.guide-habits{display:grid;grid-template-columns:1fr 1fr;gap:22px}.guide-habits h3{font-size:16px;margin:0 0 8px;color:var(--ink);line-height:1.5}.guide-habits p{margin:0}.guide-next{padding-top:28px;border-top:1px solid var(--line)}.practice-links{flex-wrap:wrap;gap:12px 18px}.game-heading-links{display:flex;flex-direction:column;align-items:flex-end;gap:10px;flex-shrink:0;font-size:12px}.game-heading-links .mp-friend-link{margin-top:0}
@media(max-width:720px){.guide-hero{grid-template-columns:1fr;gap:24px}.guide-hero h1{font-size:34px}.guide-art{max-width:230px;margin:auto;width:100%}.guide-contents{gap:12px 16px}.guide-pieces>div{grid-template-columns:105px 1fr;gap:12px;font-size:13px}.guide-habits{grid-template-columns:1fr;gap:20px}.guide-page .info-body h2{font-size:22px}.guide-steps,.guide-page .info-body ul{font-size:13px}.game-heading-links{align-items:flex-start;flex-direction:row;flex-wrap:wrap;gap:18px;margin-top:16px}.xq-heading .game-heading-links .mp-friend-link{margin-top:0}.guide-tip{padding:15px}}

/* Center both practice-board previews within their artwork panels. */
.practice-art>span:first-child{display:flex;align-items:center;justify-content:center}.practice-art svg{display:block;width:auto;flex-shrink:0}
/* AI setup: compact selection with a footer that stays visible on short screens. */
.xq-play-page:not(.mp-page) .xq-setup{padding:0!important;overflow:hidden}.xq-play-page:not(.mp-page) .xq-setup>form{display:flex;flex-direction:column;min-height:0;max-height:calc(var(--dialog-max-height,90dvh) - 2px)}.xq-play-page:not(.mp-page) .xq-setup .xq-help-top{flex:0 0 auto;padding:16px 18px 10px;margin:0}.xq-setup-body{padding:0 18px 8px;overflow:auto;min-height:0;overscroll-behavior:contain}.xq-setup-body>p:first-child{font-size:13px;line-height:1.65;color:var(--text);margin:0 0 16px}.xq-level-select{display:grid;gap:8px;margin-bottom:18px}.xq-level-select label{font-size:12px;color:var(--text)}.xq-level-select select{width:100%;min-height:46px;padding:10px 12px;font:inherit;font-size:16px;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:9px;cursor:pointer}.xq-level-select select:focus-visible{outline:3px solid var(--green);outline-offset:2px}.xq-setup-body .xq-side{margin:12px 0!important}.xq-setup .xq-setup-link-note{font-size:11px!important;color:var(--muted);line-height:1.5;margin:12px 0 2px}.xq-play-page:not(.mp-page) .xq-setup-actions{position:sticky;bottom:0;flex:0 0 auto;display:flex;gap:10px;margin:0;padding:12px 18px 16px;background:var(--paper);border-top:1px solid var(--line)}.xq-play-page:not(.mp-page) .xq-setup-actions button{min-height:44px}.xq-play-page:not(.mp-page) .xq-setup-actions .xq-primary{justify-content:center}.practice-leave{width:calc(100% - 24px);max-width:460px;max-height:calc(100dvh - 24px);background:var(--paper);color:var(--ink);border:1px solid var(--line);border-radius:14px}.practice-leave h2{margin:0 0 12px;font-size:23px}.practice-leave p{font-size:13px;line-height:1.7}.xq-play-page:not(.mp-page) .practice-leave .xq-setup-actions{position:static;flex-wrap:wrap;padding:14px 0 0}.practice-leave .xq-setup-actions>button:first-child{border:1px solid var(--line);border-radius:8px;padding:10px 13px;font-size:12px}.practice-leave::backdrop{background:#10231e55!important}
@media(max-width:720px){.xq-play-page:not(.mp-page) .xq-setup h2{font-size:25px}}
/* AI actions live directly below the player's seat, using the original buttons. */
.practice-player-actions{display:grid;grid-template-columns:1fr 1fr auto;align-items:stretch;gap:8px;margin:8px 0 10px;padding:8px 0;background:var(--paper)}.practice-player-actions>button{min-height:44px;margin:0!important;padding:9px 12px;font:600 12px/1.35 var(--font-sans);border:1px solid var(--line);border-radius:8px;justify-content:center}.practice-player-actions>[data-undo],.practice-player-actions>.practice-exit{color:var(--ink);background:var(--surface)}.practice-player-actions>[data-undo]:disabled{opacity:.45;cursor:not-allowed}.practice-player-actions>button:focus-visible{outline:3px solid var(--green);outline-offset:2px}.xq-play-page:not(.mp-page) .board-controls .xq-secondary{grid-template-columns:1fr}.practice-player-actions>.practice-exit{display:block}
@media(max-width:720px){.practice-player-actions{position:sticky;bottom:env(safe-area-inset-bottom,0px);z-index:10;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:8px 0}.practice-player-actions>button{padding:9px 7px;font-size:11px}.xq-play-page:not(.mp-page){padding-bottom:54px}}
:is(#chess-game,#xiangqi-game):has(dialog[open]) .practice-player-actions{visibility:hidden}

/* Arena brand: bright lime actions, navy surfaces and teal highlights. */
.arena-brand small{color:var(--green);font-weight:750}.arena-brand>span{box-shadow:0 0 22px #c8ff3d18}
.arena-header{border-bottom-color:var(--line)}.main-action,.nav-online,.xq-primary{box-shadow:0 4px 18px #c8ff3d15}
.arena-header nav>a[aria-current]:not(.nav-online){color:var(--green)}.language a[aria-current]{color:var(--green)}
.hero-board-scene{border-color:var(--teal);background:linear-gradient(145deg,var(--paper),var(--surface))}.scene-label>span:last-child{color:var(--teal)}
.way-symbol{color:var(--teal)}.home-note{border-left:4px solid var(--accent)}

/* Recognizable icons and consistent colours distinguish the three home actions. */
.hero-actions>a{display:inline-flex;align-items:center;justify-content:flex-start;gap:9px;min-height:50px;max-width:100%;padding:12px 14px;border:1px solid transparent;border-radius:10px;font-size:12px;font-weight:700;line-height:1.4;transition:background .15s,border-color .15s,box-shadow .15s}
.hero-action-icon{display:block;width:20px;height:20px;flex:none}.hero-action-label{min-width:0}.hero-action-arrow{width:16px;height:16px;margin-left:auto}
.hero-actions>.hero-action-online{background:#c8ff3d;color:#10200b;box-shadow:0 4px 20px #c8ff3d20}
.hero-actions>.hero-action-event{background:#45e0cb;border-color:#45e0cb;color:#081321;box-shadow:0 4px 20px #45e0cb20}
.hero-actions>.hero-action-event:hover{background:#75eddb;border-color:#75eddb;color:#081321}
.hero-actions>.hero-action-practice{background:#29213e;border-color:#9673cd;color:#eadbff}
.hero-actions>.hero-action-practice:hover{background:#392b55;border-color:#bc9ae9;color:#f6efff}
:root[data-theme=light] .hero-actions>.hero-action-practice{background:#ede4ff;border-color:#8a62c2;color:#58338a}
:root[data-theme=light] .hero-actions>.hero-action-practice:hover{background:#e2d2ff;border-color:#69429e;color:#45216e}
@media(max-width:720px){.hero-actions>a{min-height:48px;padding:11px 12px;font-size:11px;gap:8px}}
@media(prefers-reduced-motion:reduce){.hero-actions>a{transition:none}}

/* Homepage features: event celebration first, with accessible manual slide choices. */
.hero-feature{padding:18px 20px 14px;min-width:0}.feature-crumbs{display:flex;align-items:center;gap:8px;margin:0 0 13px;font-size:10px;line-height:1.5;color:var(--muted)}.feature-crumbs a:hover{color:var(--ink);text-decoration:underline}.feature-crumbs a:last-of-type{color:var(--teal);font-weight:650}.feature-spark{margin-left:auto;color:var(--gold);font-size:20px}.feature-event-image{display:block;position:relative;overflow:hidden;border-radius:12px;aspect-ratio:3/2;background:#0c2230}.feature-event-image img{display:block;width:100%;height:100%;object-fit:cover}.feature-prize{position:absolute;right:14px;top:14px;padding:7px 10px;border:1px solid #ffcf6680;border-radius:6px;background:#091727df;color:#ffdc8d;font-size:9px;letter-spacing:1.4px;font-weight:700}.feature-copy{padding:17px 1px 15px}.feature-copy h2{font-size:21px;line-height:1.22;letter-spacing:-.6px;margin:0 0 8px}.feature-copy p{font-size:12px;line-height:1.65;color:var(--muted);margin:0 0 11px;max-width:440px}.feature-explore{display:inline-flex;align-items:center;gap:10px;color:var(--teal);font-size:12px;font-weight:700;min-height:30px}.feature-explore:hover{text-decoration:underline}.feature-explore svg{width:17px;height:17px}.feature-controls{display:flex;align-items:center;gap:6px;border-top:1px solid var(--line);padding-top:10px}.feature-controls button{border:1px solid transparent;border-radius:20px;padding:8px 12px;min-height:44px;font-size:10px;font-weight:600;color:var(--muted)}.feature-controls button[aria-pressed=true]{border-color:var(--teal);background:var(--surface);color:var(--ink)}.feature-controls button[aria-pressed=true]:before{content:'';display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--teal);margin-right:7px}.feature-count{margin-left:auto;color:var(--muted);font-size:9px;white-space:nowrap}.hero-feature .feature-chess-image{height:auto;aspect-ratio:3/2;border-radius:12px;padding:24px}.feature-chess-image>span{display:grid;place-items:center;width:100%;height:100%;min-height:0}.hero-feature .feature-chess-image svg{max-height:250px;max-width:100%;height:100%}@media(max-width:720px){.hero-feature{padding:16px;max-width:480px}.feature-copy h2{font-size:21px}.feature-crumbs{font-size:9px}.feature-controls button{padding:8px 10px}.feature-count{font-size:8px}}@media(prefers-reduced-motion:no-preference){[data-feature-panel]:not([hidden]){animation:feature-reveal .22s ease-out}@keyframes feature-reveal{from{opacity:.65;transform:translateY(4px)}to{opacity:1;transform:none}}}
@media(min-width:721px){.home-page .online-hero{padding-top:32px}.hero-feature .feature-event-image,.hero-feature .feature-chess-image{max-height:280px}.feature-event-image img{object-position:center top}}

/* Public product guides: readable in both appearances and on small screens. */
.guide-index{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:28px 0}.guide-index>a{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;padding:24px;border:1px solid var(--line);border-radius:18px;background:var(--surface);min-height:144px}.guide-index strong{font-size:20px}.guide-index span{grid-column:1;font-size:15px;color:var(--muted)}.guide-index b{grid-column:2;grid-row:1}.guide-index a:hover,.guide-index a:focus-visible{outline:2px solid var(--green);outline-offset:3px}.guide-event-image{margin:32px 0}.guide-event-image img{display:block;width:100%;height:auto;max-height:360px;object-fit:cover;border-radius:20px}.guide-event-image figcaption{margin:10px 0;color:var(--muted)}.guide-table-wrap{overflow-x:auto}.guide-table-wrap table{border-collapse:collapse;width:100%;text-align:left}.guide-table-wrap th,.guide-table-wrap td{padding:12px;border-bottom:1px solid var(--line)}.guide-table-wrap caption{text-align:left;font-weight:700;padding:8px 0}.guide-home-note p{max-width:650px}.guide-page .effective{color:var(--muted)}
@media(max-width:720px){.guide-index{grid-template-columns:1fr}.guide-index>a{padding:20px}.arena-header nav .nav-guides{display:none}.guide-page h1{font-size:32px;overflow-wrap:anywhere}}

.guide-csv{padding:20px;background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow-x:auto;color:var(--ink);font-size:15px}.strategy-guide-intro{max-width:800px;margin:32px auto;padding:24px;background:var(--surface);border:1px solid var(--line);border-radius:18px}.strategy-guide-intro h2{margin-top:0}

.organizer-information{display:flex;align-items:flex-start;gap:16px;margin:28px 0 0;padding:24px;border:1px solid var(--line);border-radius:18px;background:var(--surface);color:var(--ink)}.organizer-information h2{font-size:20px;margin:0 0 12px}.organizer-information p{margin:8px 0;font-size:15px;max-width:850px}.organizer-information-icon{font-size:26px;line-height:1.2}.organizer-legal-links{display:flex;flex-wrap:wrap;gap:8px 20px;margin-top:12px}.organizer-legal-links a{display:inline-flex;align-items:center;min-height:44px;text-decoration:underline;text-underline-offset:3px}.event-legal-draft{border-left:4px solid var(--green);padding-left:20px}.event-legal-review{font-weight:700}.event-legal-version{overflow-wrap:anywhere}
@media(max-width:600px){.organizer-information{padding:18px;gap:10px}.organizer-information h2{font-size:18px}}

/* Explicit placeholders retain readable contrast in both appearance modes. */
input::placeholder,textarea::placeholder{color:var(--muted);opacity:1}