/* ARKEVO identity adapted to a desktop workspace: ink, paper, quiet surfaces. */
:root{
 --ink:#101010;--paper:#eeede8;--stone:#656561;--mist:#a4a4a0;
 --bg:var(--paper);--fg:#20211f;--panel:#f8f7f3;--surface:#e5e4de;--input:#fffefa;
 --line:#cdcdc5;--control:#85857e;--muted:#62645e;--hover:#deded6;
 --primary:var(--ink);--on-primary:var(--paper);--focus:#24657b;
 --success:#213e36;--success-bg:#e4eae0;--danger:#a12e23;--danger-bg:#f5e6df;
 --player-a:#24657b;--player-b:#94501c;--code-bg:#181a19;--code-fg:#e1e3db;
 --ui:'MUNDI Inter','MUNDI Chinese UI','PingFang SC','Microsoft YaHei',sans-serif;
 --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
 font-family:var(--ui);font-size:14px;font-size-adjust:from-font;font-synthesis:none;
 color:var(--fg);background:var(--bg);color-scheme:light;
}
@media(prefers-color-scheme:dark){:root{
 --bg:#101010;--fg:#eeede8;--panel:#191a18;--surface:#22241f;--input:#141512;
 --line:#373a34;--control:#7c8077;--muted:#afb1a8;--hover:#2c2f28;
 --primary:#eeede8;--on-primary:#101010;--focus:#eda25b;
 --success:#c0d2b7;--success-bg:#202e25;--danger:#f0ad94;--danger-bg:#33231e;
 --player-a:#8ab8c4;--player-b:#eda25b;color-scheme:dark;
}}
*{box-sizing:border-box}
body{margin:0;min-width:960px;line-height:1.6}
button,input,textarea,select{font:inherit}
button,a{touch-action:manipulation}
button{cursor:pointer;border:1px solid var(--control);background:var(--panel);color:var(--fg);border-radius:3px;padding:10px 15px;font-size:13px;font-weight:500;line-height:1.35;transition:background .15s,border-color .15s}
button:hover:not(:disabled){background:var(--hover)}
button:disabled{cursor:not-allowed;opacity:.45}
a{color:inherit;text-decoration:none}
button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--focus);outline-offset:3px}
.primary{background:var(--primary);border-color:var(--primary);color:var(--on-primary);font-weight:600}
.primary:hover:not(:disabled){background:var(--primary);box-shadow:inset 0 0 0 1px var(--on-primary)}
.ghost{background:transparent}.danger{color:var(--danger)}.small{font-size:12px;padding:7px 10px}.wide{width:100%}
input,textarea,select{width:100%;border:1px solid var(--control);background:var(--input);border-radius:3px;color:var(--fg);padding:10px 12px;font-size:13px;line-height:1.5}
input::placeholder,textarea::placeholder{color:var(--muted);opacity:1}
label{font-size:12px;font-weight:500;color:var(--fg);display:grid;gap:8px}
textarea{resize:vertical;min-height:90px;line-height:1.7}
h1,h2,h3,p{margin:0}h1{font-size:28px;letter-spacing:-.035em;font-weight:600;line-height:1.3}h2{font-size:18px;font-weight:600}h3{font-size:14px;font-weight:600}p{line-height:1.75}
.muted{color:var(--muted)}.mono{font-family:var(--mono);font-size-adjust:none;font-variant-numeric:tabular-nums}
.eyebrow{font:10px/1.5 var(--ui);letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.player-a{color:var(--player-a)}.player-b{color:var(--player-b)}
.row{display:flex;align-items:center;gap:10px}.between{justify-content:space-between}.stack{display:grid;gap:16px}
.badge{font:10px/1.3 var(--ui);font-weight:500;padding:5px 8px;border:1px solid var(--line);border-radius:2px;color:var(--success);background:var(--success-bg);white-space:nowrap}
.badge.gray{color:var(--muted);background:transparent}
.brand{display:flex;align-items:center;gap:11px;color:var(--paper)}
.brand-name{font:700 18px/1 'MUNDI Display',sans-serif;letter-spacing:-.055em;font-size-adjust:from-font}
.brandmark{display:block;width:26px;height:26px;flex-shrink:0}
.sidebar{position:fixed;inset:0 auto 0 0;width:224px;padding:26px 18px;display:flex;flex-direction:column;background:var(--ink);color:var(--paper);border-right:1px solid #383a36;z-index:5;color-scheme:dark}
.sidebar>.eyebrow{font-size:9px;letter-spacing:.13em;margin:13px 0 35px 37px;color:#a4a4a0}
.nav-label{font-size:10px;letter-spacing:.09em;color:#a4a4a0;padding:0 13px 11px}
.nav{display:grid;gap:5px}
.nav button{text-align:left;border-color:transparent;background:transparent;color:#c4c5bd;font-weight:500;padding:12px 13px}
.nav button:hover{background:#242621;color:#eeede8}
.nav button.active{background:#eeede8;color:#101010;border-color:#eeede8}
.nav .icon{display:inline-block;width:25px;opacity:.8}.nav button.active .icon{opacity:1}
.sidebar-foot{margin-top:auto;padding-top:24px}.profile{border-top:1px solid #383a36;padding:17px 5px 0;overflow:hidden}
.avatar{width:34px;height:34px;flex-shrink:0;display:grid;place-items:center;background:var(--surface);color:var(--fg);font-weight:600;border:1px solid var(--line);border-radius:3px}
.profile .avatar{background:#292c26;color:#eeede8;border-color:#4e5349}
.profile strong{font-size:12px}.profile .muted{font-size:10px;margin-top:3px;color:#a4a4a0}
.profile .copy-id{margin-top:12px;display:block;width:100%;font-size:10px;padding:8px 4px;overflow:hidden;background:#191b17;border-color:#64695f;color:#d3d5cd}
.sidebar-foot .footnote{margin-top:20px;color:#a4a4a0;font-size:10px;line-height:1.8}
.shell{margin-left:224px;min-height:100vh}.topbar{height:61px;border-bottom:1px solid var(--line);padding:0 30px;display:flex;align-items:center;justify-content:space-between}
.topbar>.mono{font-family:var(--ui);font-size:11px;color:var(--muted);letter-spacing:.04em}
.main{max-width:1600px;margin:auto;padding:28px 30px 30px}
.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:21px}.page-head .eyebrow{margin-bottom:7px}.page-head p{font-size:13px;color:var(--muted);margin-top:8px}
.notice{display:flex;align-items:center;flex-wrap:wrap;gap:10px;border:1px solid var(--line);border-left:3px solid var(--control);background:var(--panel);color:var(--muted);padding:11px 14px;margin-bottom:20px;border-radius:2px;font-size:12px;line-height:1.65}
.notice .marker{color:var(--fg);font-size:16px}.notice>span:last-child{flex:1;min-width:0}
.arena-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:22px;align-items:start}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:4px;overflow:hidden;min-width:0}
.panel-title{padding:16px 19px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:10px}.panel-title h2{font-size:14px;letter-spacing:0}.panel-body{padding:20px}
.arena-canvas{display:block;width:100%;aspect-ratio:5/3;max-height:480px;object-fit:contain;background:#181a19}
.scorebar{display:flex;align-items:center;justify-content:space-between;padding:14px 21px;border-top:1px solid var(--line);gap:12px}.scorebar .name{font-size:13px;font-weight:600}.score{font-size:26px;letter-spacing:6px;white-space:nowrap}.scorebar .state{font-size:10px;color:var(--muted);margin-top:3px}
.score-player{display:flex;align-items:center;gap:10px;flex:1;min-width:0}.score-player.opponent{justify-content:flex-start;text-align:right;flex-direction:row-reverse}.score-player .name{overflow-wrap:anywhere}.character-icon{font-size:27px;line-height:1;flex-shrink:0}.score-player .state{font-size:11px}.score-player .state strong{font-weight:500;color:var(--fg)}
.icon-button{width:34px;height:34px;padding:6px;display:inline-grid;place-items:center;flex-shrink:0}.icon-button[aria-pressed=true]{color:var(--success);border-color:var(--success)}.audio-spinner{animation:audio-spin 1s linear infinite}@keyframes audio-spin{to{transform:rotate(360deg)}}
.opponent-label{display:block;font-size:14px;font-weight:600}.opponent-label .section-number{font-weight:400}#opponent-select{min-height:44px;padding-inline-end:28px}#opponent-help{min-height:42px}
.match-controls{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 18px;border-top:1px solid var(--line);background:var(--surface)}.match-controls select{width:77px;padding:5px 7px;font-size:12px}
.settings{display:grid;gap:22px}.section-number{font:11px var(--mono);color:var(--muted);margin-right:8px}.settings h3{margin-bottom:12px}
.opponent-card{padding:14px;background:var(--surface);border:1px solid var(--line);border-radius:3px;display:flex;gap:11px;align-items:center}.opponent-card strong{font-size:13px}.opponent-card p{font-size:11px;color:var(--muted);margin-top:4px}
.divider{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:11px;margin:16px 0 12px}.divider:before,.divider:after{content:'';height:1px;background:var(--line);flex:1}
.search-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:7px}.search-row input{min-width:0;font-size:12px}.search-row button{padding:9px 11px}
.segments{display:flex;gap:6px;flex-shrink:0}.segments button{flex:1;background:transparent;font-size:12px;white-space:nowrap}.segments button.selected{border-color:var(--fg);box-shadow:inset 0 -2px var(--fg);color:var(--fg);background:var(--surface);font-weight:600}
.help{font-size:12px;color:var(--muted);line-height:1.75;margin-top:10px}.launch{display:grid;gap:8px;border-top:1px solid var(--line);padding-top:20px}.launch .primary{height:43px}
.bottom-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:20px}.info-block{padding:17px 20px}.info-block h3{font-size:13px;margin:8px 0 5px}.info-block p{font-size:12px;color:var(--muted)}.info-block .eyebrow{font-size:9px}.info-block button{margin-top:9px}
.empty{padding:36px 22px;text-align:center;color:var(--muted);font-size:13px;line-height:1.9}.empty strong{display:block;color:var(--fg);font-size:15px;margin-bottom:6px}.empty button{margin-top:18px}
.workbench{display:grid;grid-template-columns:minmax(300px,.8fr) minmax(440px,1.2fr);gap:22px}.chat{height:408px;overflow:auto;padding:20px;display:flex;flex-direction:column;gap:16px}
.message{white-space:pre-wrap;font-size:13px;line-height:1.85;background:var(--surface);border:1px solid var(--line);padding:14px 16px;border-radius:3px;max-width:95%}.message.user{align-self:flex-end;background:var(--panel);border-left:3px solid var(--control)}.message .role{display:block;color:var(--muted);font:10px var(--ui);font-weight:600;letter-spacing:.09em;margin-bottom:8px}
.composer{border-top:1px solid var(--line);padding:18px;display:grid;gap:12px}.composer textarea{min-height:96px;font-size:13px}.composer .help{font-size:11px;margin-top:0}
.code{width:100%;height:382px;resize:vertical;border:none;border-radius:0;padding:20px 22px;tab-size:2;font:13px/1.8 var(--mono);font-size-adjust:none;color:var(--code-fg);background:var(--code-bg);white-space:pre;color-scheme:dark}.code:focus-visible{outline-offset:-3px;outline-color:#eda25b}
.editor-actions{display:flex;flex-wrap:wrap;gap:8px;padding:16px 18px;border-top:1px solid var(--line)}.editor-actions button{font-size:12px}.version-line{padding:12px 18px;display:flex;gap:10px;align-items:center;border-bottom:1px solid var(--line)}.version-line select{font-size:12px;flex:1;min-width:0;padding:7px}
.diff{padding:14px 18px;font-size:12px;border-top:1px solid var(--line);color:var(--muted)}.diff pre{font:12px/1.7 var(--mono);white-space:pre-wrap;max-height:180px;overflow:auto;margin:12px 0 0;color:var(--fg)}details summary{cursor:pointer}
.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;text-align:left;white-space:nowrap;font-size:13px}th{font-size:11px;font-weight:500;color:var(--muted);letter-spacing:.03em;padding:15px 22px;border-bottom:1px solid var(--line);background:var(--surface)}td{padding:18px 22px;border-bottom:1px solid var(--line)}tr:last-child td{border-bottom:0}tbody tr:hover{background:var(--surface)}.rank{font:16px var(--mono);color:var(--fg)}.person-cell{display:flex;align-items:center;gap:13px}.person-cell .muted{font-size:11px;margin-top:4px}
.replay-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.replay-card{padding:19px;text-align:left}.replay-card strong{display:block;margin:20px 0 10px;font-size:14px}.replay-card p{color:var(--muted);font-size:12px}.replay-card>.wide{margin-top:15px}.mini-score{display:flex;justify-content:space-between;align-items:center;gap:12px;background:var(--surface);padding:19px;border:1px solid var(--line);margin-bottom:14px;border-radius:2px}.mini-score .mono{font-size:25px;color:var(--fg);white-space:nowrap}.mini-score .eyebrow{letter-spacing:0}
.replay-timeline{display:flex;gap:15px;align-items:center;padding:16px 20px;border-top:1px solid var(--line)}input[type=range]{padding:0;accent-color:var(--focus);border:0;background:transparent}.replay-timeline .mono{font-size:12px;min-width:65px}
.result-banner{padding:13px 18px;background:var(--success-bg);border-top:1px solid var(--line);color:var(--success);font-size:13px}.error-box{padding:12px 15px;background:var(--danger-bg);border:1px solid var(--danger);border-radius:3px;color:var(--danger);font-size:13px;line-height:1.7}
.auth-page{min-height:100vh;display:grid;grid-template-columns:1fr 1fr}.auth-art{padding:40px 5vw;display:flex;flex-direction:column;justify-content:space-between;background:var(--ink);color:var(--paper);border-right:1px solid #383a36}.auth-art h1{font-size:clamp(32px,3.2vw,48px);line-height:1.45;letter-spacing:-.035em;margin:25px 0 20px;font-weight:500}.auth-art h1 span{color:var(--paper)}.auth-art p{font-size:14px;max-width:400px;color:#a4a4a0}.auth-art canvas{display:block;width:100%;max-width:470px;border:1px solid #53584e;margin:32px 0}.auth-art .eyebrow{font-size:10px;color:#a4a4a0}
.auth-main{display:flex;align-items:center;justify-content:center;padding:45px 40px}.auth-form{width:100%;max-width:350px}.auth-form h2{font-size:26px;font-weight:500;margin:18px 0 10px}.auth-form>p{font-size:13px;color:var(--muted);margin-bottom:26px}.auth-form form{display:grid;gap:18px;margin-top:24px}.auth-form .primary{margin-top:4px;height:44px}.auth-form .help{font-size:11px;margin-top:24px}
.boot{padding:40px;color:var(--muted);font-size:14px}#toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);z-index:50;background:var(--primary);color:var(--on-primary);border:1px solid var(--control);border-radius:3px;padding:13px 20px;font-size:13px;max-width:540px;box-shadow:0 8px 28px #0002}#toast:empty{display:none}.loading{opacity:.6;pointer-events:none}
@media(max-width:1220px){.sidebar{width:196px}.shell{margin-left:196px}.main{padding:24px 22px}.topbar{padding:0 22px}.arena-layout{grid-template-columns:minmax(0,1fr) 270px;gap:18px}.workbench{grid-template-columns:minmax(0,1fr)}.chat{height:270px}.replay-list{grid-template-columns:repeat(2,minmax(0,1fr))}.sidebar>.eyebrow{font-size:8px}.auth-art{padding:35px}.auth-main{padding:35px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}.audio-spinner{animation:none}}
@media(forced-colors:active){
 :root{--bg:Canvas;--fg:CanvasText;--panel:Canvas;--surface:Canvas;--input:Canvas;--line:CanvasText;--control:ButtonText;--muted:CanvasText;--primary:Highlight;--on-primary:HighlightText;--focus:Highlight;--success:CanvasText;--success-bg:Canvas;--danger:CanvasText;--danger-bg:Canvas;--player-a:CanvasText;--player-b:CanvasText;--code-bg:Canvas;--code-fg:CanvasText}
 .sidebar,.auth-art{background:Canvas;color:CanvasText}.nav button.active,.segments button.selected{border:2px solid Highlight}.brand{color:CanvasText}.code:focus-visible{outline-color:Highlight}
}

.sso-button{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border:1px solid var(--primary);border-radius:3px;font-size:14px}.auth-form .sso-note{font-size:12px;line-height:1.75;margin:14px 0 20px;color:var(--muted)}

.demo-entry{border-top:1px solid var(--line);margin-top:20px;padding-top:16px}.auth-form .demo-entry .help{margin:8px 0 0}

.game-anchor{width:100%;height:clamp(280px,calc(100vh - 600px),560px);background:#131b15;display:grid;place-content:center;color:var(--muted)}
.game-layer{position:absolute;z-index:2;overflow:hidden;background:#131b15}
.game-layer[hidden]{display:none}.game-layer:focus-visible{outline:2px solid #a5bea5;outline-offset:2px}.game-layer iframe{width:100%;height:100%;border:0;display:block;pointer-events:none}