:root{color-scheme:dark;--bg:#10191b;--surface:#172426;--raised:#1d2b2d;--line:#304143;--text:#ecf0e5;--muted:#91a7a5;--mint:#b8e1b3;--gold:#f1c98c;--coral:#efa786}
*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 90% 0%,#21302e 0,transparent 42%),var(--bg);color:var(--text);font:14px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}button,select,input{font:inherit}button,a,summary,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:focus-visible,a:focus-visible,summary:focus-visible,select:focus-visible,input:focus-visible{outline:2px solid var(--mint);outline-offset:4px}button:disabled{cursor:default;opacity:.5}button{color:inherit;border:1px solid var(--line);background:var(--raised);border-radius:8px}a{color:var(--mint)}main{max-width:1420px;margin:0 auto;padding:0 40px}h1,h2,h3,p{margin:0}h2{font-size:18px;font-weight:650}h3{font-size:15px}.muted{color:var(--muted);font-size:12px}.eyebrow{font-size:10px;font-weight:650;color:var(--mint);letter-spacing:2px;margin-bottom:8px}.small-label{font-size:10px;letter-spacing:2px;color:var(--muted)}.masthead{display:flex;justify-content:space-between;align-items:center;height:94px;border-bottom:1px solid var(--line)}.brand{display:flex;gap:12px;align-items:center;color:var(--text);font-size:20px;text-decoration:none;letter-spacing:-.4px}.brand b{font-weight:400;color:var(--mint)}.brand-mark{display:grid;grid-template-columns:repeat(2,7px);gap:3px;transform:rotate(-8deg)}.brand-mark i{width:7px;height:7px;background:var(--mint);border-radius:1px}.brand-mark i:nth-child(2){opacity:.3}.masthead-actions{display:flex;gap:20px;align-items:center}.connection{font-size:11px;color:var(--muted)}.connection:before{content:"";display:inline-block;width:6px;height:6px;background:var(--mint);margin-right:7px;border-radius:50%}.quiet-button{padding:8px 13px;background:transparent;font-size:12px}.quiet-button:hover{background:var(--raised);border-color:#647574}.quiet-button[aria-pressed=true]{color:var(--mint);border-color:var(--mint)}.intro{display:flex;align-items:center;justify-content:space-between;padding:32px 0 29px;gap:20px}h1{font-size:32px;line-height:1.35;letter-spacing:-.8px;font-weight:650}.lead{font-size:13px;color:var(--muted);margin-top:10px}.intro-note{display:flex;flex-direction:column;gap:5px;text-align:right;font-size:11px;color:var(--muted)}.intro-note strong{color:var(--text);font-size:13px;font-weight:500}.error{font-size:12px;color:var(--coral);margin-bottom:12px}.error:empty{display:none}.section-line{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:13px}.section-line h2{font-size:14px}.section-line h2 span{font-weight:400;color:var(--muted);font-size:11px;margin-left:12px}.stage-tabs{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:25px}.stage-tab{position:relative;text-align:left;padding:16px 18px;background:#172426b3;border-color:var(--line);transition:background .2s,border .2s;border-radius:10px;overflow:hidden}.stage-tab:hover{background:#243537;border-color:#637f75}.stage-tab.active{background:#243b30;border-color:#8cae86}.stage-top{display:flex;justify-content:space-between;align-items:center;gap:9px;margin-bottom:9px}.stage-number{font:10px ui-monospace,SFMono-Regular,monospace;color:var(--muted);letter-spacing:1px}.stage-state{font-size:10px;color:var(--muted);background:#ffffff08;padding:2px 6px;border-radius:4px}.stage-tab.active .stage-state{color:var(--mint);background:#b8e1b30b}.stage-tab strong{display:block;font-size:15px;margin-bottom:3px}.stage-tab small{display:block;font-size:10px;color:var(--muted)}.stage-foot{display:flex;align-items:baseline;gap:4px;margin-top:12px;color:var(--mint);font-variant-numeric:tabular-nums;font-size:16px}.stage-foot span{font-size:9px;color:var(--muted)}.stage-tab:after{content:"↗";position:absolute;bottom:18px;right:17px;font-size:14px;color:var(--muted)}.stage-tab.active:after{color:var(--mint)}.arena-layout{display:grid;grid-template-columns:minmax(0,1fr) 284px;gap:18px;align-items:start}.viewer{overflow:hidden;background:var(--surface);border:1px solid var(--line);border-radius:13px}.viewer-heading{display:flex;justify-content:space-between;align-items:center;padding:15px 20px}.viewer-heading .eyebrow{font-size:9px;margin-bottom:3px}.viewer-heading h2{font-size:16px}.live-button{font-size:11px;padding:8px 10px;background:transparent;white-space:nowrap;color:var(--muted)}.live-button.active{border-color:#839e7b;color:var(--mint);background:#b8e1b309}.live-dot{display:inline-block;width:5px;height:5px;border-radius:50%;background:currentColor;vertical-align:middle;margin-right:3px}.stage{aspect-ratio:240/168;position:relative;overflow:hidden;background:#0b1415;isolation:isolate}.stage>video,.stage>img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;image-rendering:pixelated;background:#0b1415}.stage>video{z-index:1}.stage>img#live-next{background:transparent}.stage>[hidden]{display:none!important}.screen-label{position:absolute;left:14px;top:13px;right:14px;z-index:2;display:flex;justify-content:space-between;gap:10px;pointer-events:none}.screen-label span{font-size:9px;letter-spacing:.5px;color:#ebf1e8;background:#0d171acc;border:1px solid #ffffff12;padding:4px 8px;border-radius:4px;backdrop-filter:blur(8px)}.screen-label span:last-child{color:#b8e1b3}.video-empty{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;gap:13px;flex-direction:column;color:var(--muted);font-size:12px;background:radial-gradient(ellipse at center,#21312e,transparent 55%)}.video-empty strong{font-size:16px;color:var(--text);font-weight:500}.loading-mark{height:32px;width:32px;border:1px solid #b8e1b340;border-top-color:var(--mint);border-radius:50%;animation:spin 2s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.rules{position:absolute;right:12px;bottom:12px;z-index:3;width:min(240px,calc(100% - 24px));font-size:11px;line-height:1.7;background:#12201ee6;border:1px solid #758c6e7a;border-radius:7px;padding:7px 11px;color:#e1e8dc;backdrop-filter:blur(10px)}.rules:not([open]){width:120px}.rules summary{display:flex;justify-content:space-between;align-items:center;cursor:pointer;list-style:none;color:var(--mint);font-size:11px}.rules summary::-webkit-details-marker{display:none}.rules summary span{font-size:15px;font-weight:300}.rules[open] summary span{transform:rotate(45deg)}.rules p{margin-top:7px}.rules a{display:inline-block;margin-top:6px;font-size:10px}.player-controls{display:grid;grid-template-columns:1fr auto;align-items:center;row-gap:8px;padding:10px 14px 9px}.control-start,.control-end{display:flex;align-items:center;gap:11px}.icon-button{height:27px;min-width:29px;border:0;background:transparent;font-size:17px;border-radius:4px;line-height:1}.icon-button:hover{background:#ffffff12}.frame-step{font:10px ui-monospace,SFMono-Regular,monospace;color:var(--text)}#video-clock{font-size:10px}.speed-label{display:flex;gap:6px;align-items:center;color:var(--muted);font-size:10px}.speed-label select{border:0;background:var(--raised);color:var(--text);font-size:10px;border-radius:5px;padding:3px 5px}.speed-label select:disabled{opacity:.5}#video-seek{grid-column:1/-1;width:100%;margin:0;accent-color:var(--mint);height:5px;cursor:pointer}#video-seek:disabled{opacity:.2;cursor:default}.viewer-caption{font-size:9px;color:var(--muted);display:flex;justify-content:space-between;gap:12px;padding:0 16px 11px}#match{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.match-panel{padding:19px 18px;background:var(--surface);border:1px solid var(--line);border-radius:13px;align-self:stretch}.score-header{border-bottom:1px solid var(--line);padding-bottom:15px}.score-header .eyebrow{font-size:9px;letter-spacing:1px;color:var(--muted)}.score-header strong{display:block;font-size:44px;font-weight:500;font-variant-numeric:tabular-nums;line-height:1.2;color:var(--mint);letter-spacing:-2px}.score-header>span{font-size:10px;color:var(--muted)}.players-heading{display:flex;align-items:center;justify-content:space-between;margin:17px 0 4px}.players-heading h2{font-size:12px}.players-heading>span{font-size:9px;color:var(--muted)}table{width:100%;border-collapse:collapse;text-align:left}td{padding:10px 0;border-bottom:1px solid #30414388;font-size:11px;vertical-align:middle}td:first-child{width:32px;font-size:10px;color:var(--muted)}td:nth-child(2){font-size:10px;color:var(--text);padding-right:3px}td:nth-child(3),td:nth-child(4){text-align:right;font-variant-numeric:tabular-nums}td:nth-child(3){font-size:13px;font-weight:600;color:var(--text);min-width:33px}td:nth-child(4){font-size:10px;color:var(--muted);width:32px;padding-left:7px}.dot{display:inline-block;width:6px;height:6px;border-radius:2px;margin-right:4px}.contribution-note{display:flex;gap:8px;margin:15px 0 12px;font-size:10px;color:var(--muted);line-height:1.8}.contribution-note b{font-weight:500;color:var(--text)}.mini-dot{width:5px;height:5px;background:var(--gold);border-radius:50%;margin-top:6px;flex-shrink:0}.snapshot{font-size:9px;color:var(--muted);padding-top:10px;border-top:1px solid var(--line)}#freshness{font-size:9px}.explanation{display:grid;grid-template-columns:1.15fr 1fr;gap:45px;margin:24px 0 32px}.explanation h2{font-size:19px;margin-bottom:8px}.explanation p{font-size:12px;color:var(--muted);line-height:1.9}.explanation .eyebrow{font-size:9px;margin-bottom:6px}.honesty-note{display:flex;gap:12px;border-left:1px solid var(--line);padding-left:23px;align-self:center}.honesty-note strong{font-size:12px;font-weight:500}.honesty-note p{font-size:11px;margin-top:6px}.note-symbol{display:grid;place-items:center;width:17px;height:17px;border:1px solid var(--gold);color:var(--gold);border-radius:50%;font:11px Georgia,serif;flex-shrink:0;margin-top:2px}.evaluation-section{margin-bottom:25px}.evaluation-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.evaluation-card{border:1px solid var(--line);border-radius:9px;padding:15px 18px;background:#17242680}.evaluation-card header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.evaluation-card h3{font-size:13px}.evaluation-card header span{font-size:9px;color:var(--muted)}.composition-row{display:grid;grid-template-columns:1fr auto;gap:8px;margin-top:8px;font-size:11px;color:var(--muted)}.composition-row strong{color:var(--text);font-size:15px;font-weight:550;font-variant-numeric:tabular-nums}.composition-row small{font-size:9px;color:var(--muted)}.evaluation-card.highlight{border-color:#758c6e}.evaluation-card.highlight .composition-row strong{color:var(--mint)}.method-note{color:var(--muted);font-size:10px;line-height:1.8;margin-top:10px}.no-data{font-size:12px;color:var(--muted);padding:18px;border:1px dashed var(--line);border-radius:8px;grid-column:1/-1}.details-panel{border-top:1px solid var(--line)}.details-panel>summary{display:flex;align-items:center;justify-content:space-between;padding:17px 0;font-size:12px;list-style:none;cursor:pointer}.details-panel>summary::-webkit-details-marker{display:none}.details-panel>summary>span:first-child:before{content:"+";display:inline-block;color:var(--mint);margin-right:10px}.details-panel[open]>summary>span:first-child:before{content:"−"}.details-panel>summary>.muted{font-size:10px}.details-content{padding:0 0 20px}.resource-cards{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:8px;margin-bottom:20px}.resource-cards>div{padding:14px 18px;border-right:1px solid var(--line)}.resource-cards>div:last-child{border:0}.resource-cards span{display:block;font-size:10px;color:var(--muted)}.resource-cards strong{display:block;font-size:23px;font-weight:500;margin:4px 0;color:var(--text)}.resource-cards small{font-size:9px;color:var(--muted)}.charts{display:grid;grid-template-columns:1fr 1fr;gap:30px}.charts h3 small{font-size:10px;color:var(--muted);font-weight:400;margin-left:8px}canvas{display:block;width:100%;height:190px;margin-top:12px}.evaluation-list{margin-top:15px;color:var(--muted);font-size:10px;line-height:1.8}.history-toolbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.history-row{display:flex;gap:20px;justify-content:space-between;align-items:center;padding:12px 0;border-top:1px solid var(--line);font-size:11px;color:var(--muted)}.history-row button{padding:6px 11px;font-size:10px}.history-row span{word-break:break-all}iframe{display:block;width:100%;height:900px;border:0;margin-top:18px}iframe[hidden]{display:none}.footnote{display:flex;justify-content:space-between;gap:25px;border-top:1px solid var(--line);padding:25px 0 30px;font-size:9px;color:var(--muted)}.footnote>span{white-space:nowrap;font:9px ui-monospace,SFMono-Regular,monospace;letter-spacing:.5px}.footnote p{max-width:670px;text-align:right;line-height:1.8}.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}
.viewer:fullscreen{display:flex;flex-direction:column;height:100vh;width:100vw;background:#0b1415;border:0;border-radius:0}.viewer:fullscreen .stage{flex:1;aspect-ratio:auto}.viewer:fullscreen .viewer-heading{padding:12px 20px}.viewer:fullscreen .viewer-caption{display:none}.viewer:fullscreen .player-controls{padding:10px 20px}.demo-mode .intro{padding:20px 0}.demo-mode .intro h1{font-size:26px}.demo-mode .intro-note,.demo-mode .lead,.demo-mode .evaluation-section,.demo-mode .details-panel,.demo-mode .footnote{display:none}.demo-mode .stage-tabs{margin-bottom:17px}.demo-mode .explanation{margin-bottom:20px}.demo-mode main{max-width:1540px}.demo-mode .masthead{height:70px}
@media(min-width:1450px){.demo-mode .arena-layout{grid-template-columns:minmax(0,1fr) 310px}.demo-mode .match-panel{padding:22px}.demo-mode td{padding:14px 0}}
@media(max-width:1050px){main{padding:0 24px}.arena-layout{grid-template-columns:minmax(0,1fr) 245px;gap:13px}.match-panel{padding:16px 13px}.stage-tab{padding:13px}.stage-tab strong{font-size:13px}.stage-foot{font-size:14px}h1{font-size:27px}.score-header strong{font-size:36px}td{padding:8px 0}.contribution-note{font-size:9px}.viewer-caption{font-size:8px}.explanation{gap:25px}.evaluation-card{padding:14px}.footnote{display:block}.footnote p{text-align:left;margin-top:10px}}
@media(max-width:780px){main{padding:0 16px}.masthead{height:73px}.brand{font-size:17px}.masthead-actions{gap:10px}.connection{font-size:9px}.quiet-button{font-size:10px;padding:7px 9px}.intro{padding:24px 0}.intro-note{display:none}h1{font-size:25px}.lead{font-size:11px}.section-line h2 span{display:none}.stage-tabs{grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}.stage-tab{padding:11px 9px;border-radius:7px}.stage-top{margin-bottom:6px}.stage-state{font-size:8px;padding:1px 3px}.stage-number{font-size:8px}.stage-tab strong{font-size:11px}.stage-tab small{font-size:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.stage-foot{font-size:12px;margin-top:9px;display:block}.stage-foot span{display:block;font-size:8px}.stage-tab:after{display:none}.arena-layout{grid-template-columns:1fr}.match-panel{padding:16px 18px;display:grid;grid-template-columns:125px minmax(0,1fr);gap:0 17px}.score-header{grid-row:1/4;border-bottom:0;border-right:1px solid var(--line);padding:0 12px 0 0;display:flex;flex-direction:column;justify-content:center}.score-header strong{font-size:36px}.score-header .eyebrow{font-size:8px}.players-heading{margin:0 0 3px}table{grid-column:2}.match-panel td{padding:5px 0}.match-panel td:nth-child(2){font-size:9px}.contribution-note{grid-column:1/-1;margin:14px 0 9px;padding-top:10px;border-top:1px solid var(--line);font-size:9px}.contribution-note br{display:none}.snapshot,#freshness{grid-column:1/-1}.snapshot{border:0;padding:0}.viewer-heading{padding:12px 15px}.viewer-heading h2{font-size:14px}.live-button{padding:7px 9px;font-size:10px}.explanation{grid-template-columns:1fr;gap:17px;margin:22px 0}.explanation h2{font-size:18px}.explanation p{font-size:11px}.honesty-note{border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:15px}.evaluation-cards{grid-template-columns:1fr}.evaluation-card{padding:14px 16px}.evaluation-card header{margin-bottom:9px}.resource-cards{grid-template-columns:1fr 1fr}.resource-cards>div:nth-child(2){border-right:0}.resource-cards>div:nth-child(-n+2){border-bottom:1px solid var(--line)}.charts{grid-template-columns:1fr}.details-panel>summary>.muted{font-size:9px;text-align:right;max-width:45%}.history-row{flex-wrap:wrap;gap:10px}.rules{max-height:calc(100% - 24px);overflow:auto}.screen-label{top:10px;left:10px;right:10px}.screen-label span{font-size:8px}.demo-mode .intro h1{font-size:23px}.demo-mode .explanation{display:none}}
@media(prefers-reduced-motion:reduce){.loading-mark{animation:none}*{scroll-behavior:auto!important}}

@media(min-width:781px){.demo-mode .stage-tab{padding:11px 14px}.demo-mode .stage-tab small{display:none}.demo-mode .stage-top{margin-bottom:5px}.demo-mode .stage-foot{font-size:14px;margin-top:5px}.demo-mode .stage{height:max(270px,calc(100dvh - 455px));max-height:850px;aspect-ratio:auto}.demo-mode .match-panel{align-self:stretch}.demo-mode .explanation{display:none}}

.viewer-chapters{display:flex;gap:7px;flex-wrap:wrap;padding:8px 16px;border-top:1px solid var(--line)}.viewer-chapters[hidden]{display:none}.viewer-chapters button{font-size:10px;padding:5px 8px;color:var(--muted);background:transparent}.viewer-chapters button:hover{color:var(--mint);border-color:var(--mint)}.demo-mode .viewer-chapters,.viewer:fullscreen .viewer-chapters{display:none}

.training-explanation{padding:16px 0;border-bottom:1px solid var(--line)}.training-explanation p{margin-top:8px;max-width:1100px;line-height:1.8}