/* ConcurSys. One design system: dark precision engineering, brand cyan as the single accent. */
@font-face{font-family:'Geist';src:url('/assets/fonts/geist.woff2') format('woff2');font-weight:100 900;font-display:swap}
@font-face{font-family:'Geist Mono';src:url('/assets/fonts/geist-mono.woff2') format('woff2');font-weight:100 900;font-display:swap}
:root{
 color-scheme:dark;
 --bg:#070b0f;--bg-2:#0a1016;--panel:#0c141b;--panel-2:#101b23;--panel-3:#14222b;
 --line:#1a2831;--line-2:#253a44;--line-3:#335461;
 --text:#e9f1f2;--text-2:#b3c3c9;--muted:#7d929a;--faint:#56696f;
 --accent:#2ee8df;--accent-ink:#04221f;--accent-deep:#0b7fa8;--accent-soft:rgba(46,232,223,.1);--accent-line:rgba(46,232,223,.38);
 --amber:#e3b15c;
 --sans:'Geist','PingFang SC','Hiragino Sans GB','Microsoft YaHei','Hiragino Sans','Yu Gothic UI','Malgun Gothic','Apple SD Gothic Neo','Noto Sans Arabic','Segoe UI',system-ui,sans-serif;
 --mono:'Geist Mono','Cascadia Code',Consolas,'Microsoft YaHei',monospace;
 --w:1240px;--gut:32px;--r:4px;--ease:cubic-bezier(.2,.7,.1,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.7 var(--sans);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
body::after{content:'';position:fixed;inset:0;pointer-events:none;z-index:100;opacity:.05;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3{font-weight:550;letter-spacing:-.03em;text-wrap:balance}
p{text-wrap:pretty}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
button:disabled{opacity:.4;cursor:default}
img{max-width:100%;display:block}
::selection{background:var(--accent);color:var(--accent-ink)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px}
[hidden]{display:none!important}
.wrap{width:min(var(--w),100% - var(--gut)*2);margin-inline:auto}
.mono{font-family:var(--mono);font-size:11.5px;letter-spacing:.08em;font-feature-settings:'zero'}
.eyebrow{display:inline-block;font:500 12px/1.4 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin-bottom:22px}
.term{white-space:nowrap}
.skip{position:fixed;top:12px;inset-inline-start:12px;z-index:200;background:var(--accent);color:var(--accent-ink);padding:10px 16px;border-radius:var(--r);transform:translateY(-200%)}
.skip:focus{transform:none}
svg.arrow{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.6;flex-shrink:0;transition:transform .25s var(--ease)}
html[dir=rtl] svg.arrow{transform:scaleX(-1)}

/* Buttons and links */
.button{display:inline-flex;align-items:center;justify-content:center;gap:14px;min-height:46px;padding:12px 20px;border-radius:var(--r);border:1px solid var(--line-3);font-size:14.5px;font-weight:500;white-space:nowrap;transition:background .2s,border-color .2s,color .2s,transform .15s}
.button:hover svg.arrow{transform:translateX(3px)}
html[dir=rtl] .button:hover svg.arrow{transform:scaleX(-1) translateX(3px)}
.button:active{transform:translateY(1px)}
.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.primary:hover{background:#7ff3ec;border-color:#7ff3ec}
.outline:hover{border-color:var(--accent);color:var(--accent)}
.text-link{display:inline-flex;align-items:center;gap:10px;font-size:14.5px;font-weight:500;color:var(--text);padding-block:6px;background:linear-gradient(var(--accent),var(--accent)) 0 100%/0 1px no-repeat;transition:background-size .35s var(--ease),color .2s}
.text-link:hover{color:var(--accent);background-size:100% 1px}
.text-link:hover svg.arrow{transform:translateX(3px)}
html[dir=rtl] .text-link{background-position:100% 100%}
.small-button{font-size:13px;color:var(--text-2);border:1px solid var(--line-2);padding:8px 14px;border-radius:var(--r);transition:border-color .2s,color .2s}
.small-button:hover{color:var(--accent);border-color:var(--accent-line)}

/* Header */
.header{position:sticky;top:0;z-index:50;background:transparent;border-bottom:1px solid transparent;transition:background .3s,border-color .3s,backdrop-filter .3s}
.header.scrolled,.is-inner .header{background:rgba(7,11,15,.78);backdrop-filter:blur(14px) saturate(1.3);-webkit-backdrop-filter:blur(14px) saturate(1.3);border-color:var(--line)}
.header-inner{height:72px;display:flex;align-items:center;gap:36px}
.brand{display:flex;align-items:center;flex-shrink:0}
.brand-logo{display:block;width:36px;height:36px;background:url('/assets/concursys-mark-192.png') center/contain no-repeat;transition:transform .5s var(--ease)}
.brand:hover .brand-logo{transform:rotate(90deg)}
#navigation{display:flex;align-items:center;gap:4px;margin-inline-start:auto}
.nav-group{position:relative}
.nav-trigger,.nav-link{display:inline-flex;align-items:center;gap:7px;height:40px;padding:0 13px;border-radius:var(--r);font-size:14px;font-weight:450;color:var(--text-2);transition:color .2s,background .2s}
.nav-trigger svg{width:10px;height:10px;fill:none;stroke:currentColor;stroke-width:1.6;transition:transform .25s var(--ease)}
.nav-trigger:hover,.nav-link:hover,.nav-trigger[aria-expanded=true]{color:var(--text);background:rgba(255,255,255,.04)}
.nav-trigger[aria-expanded=true] svg{transform:rotate(180deg)}
.nav-link[aria-current]{color:var(--accent)}
.dropdown{position:absolute;top:calc(100% + 10px);inset-inline-start:-6px;min-width:300px;padding:8px;background:rgba(12,20,27,.97);backdrop-filter:blur(16px);border:1px solid var(--line-2);border-radius:6px;box-shadow:0 24px 60px rgba(0,0,0,.45);animation:drop .22s var(--ease)}
@keyframes drop{from{opacity:0;transform:translateY(-6px)}}
.dropdown a{display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:var(--r);font-size:14px;color:var(--text-2);transition:background .15s,color .15s}
.dropdown a:hover{background:var(--panel-3);color:var(--text)}
.dropdown a .mono{color:var(--faint);font-size:11px}
.dropdown a svg.arrow{margin-inline-start:auto;opacity:0;transition:opacity .2s,transform .2s}
.dropdown a:hover svg.arrow{opacity:1}
.dropdown-overview{color:var(--accent)!important;border-bottom:1px solid var(--line);border-radius:var(--r) var(--r) 0 0!important;margin-bottom:4px}
.dropdown.mega{width:min(860px,calc(100vw - 48px));inset-inline-start:50%;transform:translateX(-50%);animation:dropc .22s var(--ease)}
html[dir=rtl] .dropdown.mega{transform:translateX(50%)}
@keyframes dropc{from{opacity:0;margin-top:-6px}}
.mega-columns{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;padding:8px 4px 4px}
.mega-columns h3{font:500 11px/1.4 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--faint);padding:8px 12px 6px}
.mega-columns a{padding:8px 12px;font-size:13.5px}
.header-actions{display:flex;align-items:center;gap:10px}
.lang{position:relative}
.lang-btn{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 12px;border-radius:var(--r);border:1px solid var(--line-2);font-size:13.5px;color:var(--text-2);transition:border-color .2s,color .2s}
.lang-btn:hover,.lang-btn[aria-expanded=true]{color:var(--text);border-color:var(--line-3)}
.lang-btn svg{width:16px;height:16px}
.lang-btn .chev{width:10px;height:10px;fill:none;stroke:currentColor;stroke-width:1.6}
.lang-list{position:absolute;top:calc(100% + 8px);inset-inline-end:0;z-index:60;margin:0;padding:6px;list-style:none;min-width:168px;max-height:min(70vh,440px);overflow:auto;background:rgba(12,20,27,.98);border:1px solid var(--line-2);border-radius:6px;box-shadow:0 24px 60px rgba(0,0,0,.45);animation:drop .2s var(--ease)}
.lang-list button{display:flex;justify-content:space-between;align-items:center;width:100%;padding:9px 12px;border-radius:var(--r);font-size:14px;color:var(--text-2);text-align:start;white-space:nowrap}
.lang-list button:hover{background:var(--panel-3);color:var(--text)}
.lang-list button[aria-selected=true]{color:var(--accent)}
.lang-list button[aria-selected=true]::after{content:'';width:6px;height:6px;border-radius:50%;background:var(--accent)}
.header-contact{min-height:40px;padding:8px 16px;font-size:13.5px}
#menu{display:none;width:40px;height:40px;border-radius:var(--r);border:1px solid var(--line-2);flex-direction:column;align-items:center;justify-content:center;gap:5px}
#menu span{display:block;width:16px;height:1.5px;background:var(--text);transition:transform .25s var(--ease)}
#menu[aria-expanded=true] span:first-child{transform:translateY(3.25px) rotate(45deg)}
#menu[aria-expanded=true] span:last-child{transform:translateY(-3.25px) rotate(-45deg)}

/* Hero */
.hero{position:relative;padding:56px 0 96px;overflow:clip;isolation:isolate;margin-top:-72px;padding-top:120px}
.hero-bg{position:absolute;inset:0;z-index:-1;pointer-events:none}
.hero-bg::before{content:'';position:absolute;inset:0;background-image:linear-gradient(rgba(120,170,180,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(120,170,180,.07) 1px,transparent 1px);background-size:64px 64px;mask-image:radial-gradient(ellipse 80% 60% at 60% 30%,#000 20%,transparent 75%);-webkit-mask-image:radial-gradient(ellipse 80% 60% at 60% 30%,#000 20%,transparent 75%)}
.hero-bg::after{content:'';position:absolute;width:980px;height:720px;top:-260px;inset-inline-end:-220px;background:radial-gradient(closest-side,rgba(46,232,223,.16),rgba(11,127,168,.08) 45%,transparent 72%);animation:drift 18s ease-in-out infinite alternate}
@keyframes drift{to{transform:translate(-90px,70px) scale(1.08)}}
.hero-head{display:flex;flex-direction:column;align-items:center;text-align:center;max-width:980px;margin:0 auto 64px}
.hero-eyebrow{display:inline-flex;align-items:center;gap:10px;font:500 12px/1.4 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin-bottom:28px;animation:rise .8s var(--ease) both}
.hero-eyebrow i{width:6px;height:6px;background:var(--accent);box-shadow:0 0 12px var(--accent)}
html:lang(zh-Hans) .hero-eyebrow,html:lang(zh-Hant) .hero-eyebrow,html:lang(ja) .hero-eyebrow,html:lang(ko) .hero-eyebrow,html:lang(ar) .hero-eyebrow{letter-spacing:.06em;font-family:var(--sans);font-size:13px}
.hero-title{font-size:clamp(44px,5.6vw,80px);line-height:1.04;letter-spacing:-.045em;font-weight:520;text-wrap:balance}
.hero-title .ln{display:inline-block;overflow:clip;padding-bottom:.06em;vertical-align:top}
.hero-title .ln>span{display:inline-block;animation:rise 1s var(--ease) both}
.hero-title .ln:nth-child(2)>span{animation-delay:.08s}
@keyframes rise{from{opacity:0;transform:translateY(40%)}}
.hero-foot{display:flex;flex-direction:column;align-items:center;margin-top:26px;animation:rise .9s .18s var(--ease) both}
.hero-foot p{color:var(--text-2);font-size:18px;line-height:1.7;max-width:58ch}
.hero-actions{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:14px 28px;margin-top:32px}
html:lang(zh-Hans) .hero-title,html:lang(zh-Hant) .hero-title,html:lang(ja) .hero-title,html:lang(ko) .hero-title{font-size:clamp(34px,4.6vw,66px);line-height:1.2;letter-spacing:.01em;font-weight:500}
html:lang(ar) .hero-title{letter-spacing:0;line-height:1.25;font-size:clamp(34px,4.6vw,64px)}
html:lang(ru) .hero-title,html:lang(de) .hero-title,html:lang(fr) .hero-title,html:lang(es) .hero-title{font-size:clamp(36px,4.8vw,68px)}

/* Stack diagram */
.stack-hero{position:relative;animation:rise 1s .28s var(--ease) both}
.stack{position:relative;direction:ltr;border:1px solid var(--line-2);border-radius:6px;background:linear-gradient(180deg,rgba(16,27,35,.9),rgba(10,16,22,.92));box-shadow:0 40px 120px -40px rgba(0,0,0,.8),inset 0 1px 0 rgba(255,255,255,.04);overflow:hidden}
.stack::before{content:'';position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(120,170,180,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(120,170,180,.05) 1px,transparent 1px);background-size:24px 24px}
.stack::after{content:'';position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,transparent,rgba(46,232,223,.07),transparent);width:30%;transform:translateX(-120%);animation:scan 9s 2s ease-in-out infinite}
@keyframes scan{0%{transform:translateX(-120%)}40%,100%{transform:translateX(420%)}}
.stack-bar{position:relative;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;padding:14px 18px;border-bottom:1px solid var(--line)}
.stack-title{display:flex;align-items:center;gap:12px;font:500 12px/1.4 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--text-2)}
html:lang(zh) .stack-title,html:lang(zh-TW) .stack-title,html:lang(ja) .stack-title,html:lang(ko) .stack-title{letter-spacing:.04em}
.stack-sq{width:8px;height:8px;background:var(--accent)}
.stack-by{color:var(--faint);padding-inline-start:12px;border-inline-start:1px solid var(--line-2)}
.stack-ctrl{display:flex;gap:8px;align-items:center}
.ctl{height:34px;padding:0 14px;border-radius:var(--r);border:1px solid var(--line-2);background:var(--panel);font-size:12.5px;color:var(--text-2);transition:border-color .2s,color .2s,background .2s}
.ctl:hover:not(:disabled){border-color:var(--line-3);color:var(--text)}
.ctl-run{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);font-weight:550}
.ctl-run:hover:not(:disabled){background:#7ff3ec;color:var(--accent-ink)}
select.ctl{padding-inline-end:30px;appearance:none;background:var(--panel) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='m3 4.5 3 3 3-3' fill='none' stroke='%237d929a' stroke-width='1.5'/%3E%3C/svg%3E") no-repeat right 10px center/12px}
select.ctl option{background:#0c141b}
.ctl-ghost{background:transparent}
.stack-body{position:relative;display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:0}
.stack-main{padding:18px;display:flex;flex-direction:column;gap:26px;position:relative}
.stack-main::before{content:'';position:absolute;top:18px;bottom:18px;left:50%;width:1px;background:linear-gradient(var(--line-3),var(--line-3)) ;opacity:.6}
.stratum{position:relative;border:1px solid var(--line-2);border-radius:var(--r);background:rgba(10,16,22,.88);padding:12px;cursor:pointer;transition:border-color .3s,background .3s,box-shadow .3s}
.stack-main .stratum+.stratum::before{content:'';position:absolute;left:calc(50% - 5px);top:-19px;width:9px;height:9px;border:1px solid var(--line-3);background:var(--bg-2);transform:rotate(45deg)}
.stratum:hover{border-color:var(--line-3)}
.stack-hero[data-layer=tolang] .stratum[data-layer=tolang],.stack-hero[data-layer=ocap] .stratum[data-layer=ocap],.stack-hero[data-layer=tvm] .stratum[data-layer=tvm],.stack-hero[data-layer=blockgit] .stratum[data-layer=blockgit],.stack-hero[data-layer=glvm] .stratum[data-layer=glvm]{border-color:var(--accent-line);background:rgba(15,32,37,.9);box-shadow:inset 3px 0 0 var(--accent)}
.stack-hero[data-layer=tolang] .stratum[data-layer=tolang] .tag,.stack-hero[data-layer=ocap] .stratum[data-layer=ocap] .tag,.stack-hero[data-layer=tvm] .stratum[data-layer=tvm] .tag,.stack-hero[data-layer=blockgit] .stratum[data-layer=blockgit] .tag,.stack-hero[data-layer=glvm] .stratum[data-layer=glvm] .tag{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.stratum-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:10px;direction:ltr}
.tag{font:500 11px/1 var(--mono);letter-spacing:.16em;padding:6px 9px;border:1px solid var(--accent-line);color:var(--accent);border-radius:2px;transition:background .3s,color .3s}
.stratum-sub{font-size:13px;color:var(--text-2)}
.stratum-cap{margin-inline-start:auto;font:500 10.5px/1.3 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--faint)}
html:lang(zh) .stratum-cap,html:lang(zh-TW) .stratum-cap,html:lang(ja) .stratum-cap,html:lang(ko) .stratum-cap,html:lang(ar) .stratum-cap{letter-spacing:.02em}
.tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.tile{position:relative;padding:14px 12px;min-height:54px;border:1px solid var(--line);border-radius:3px;background:var(--panel);font-size:14px;color:var(--text);transition:border-color .35s,background .35s,color .35s}
.tile::after{content:'';position:absolute;top:10px;right:10px;width:6px;height:6px;border-radius:50%;border:1px solid var(--line-3)}
.canvas-wrap{position:relative;height:118px;border:1px solid var(--line);border-radius:3px;background:rgba(8,13,18,.9);overflow:hidden}
.canvas-wrap canvas{display:block;width:100%;height:100%}
.resume{position:absolute;left:calc(50% + 24px);top:calc(16px + (100% - 32px) / 3);transform:translateY(-50%);display:none;align-items:center;gap:8px;height:30px;padding:0 12px;border:1px solid var(--amber);background:#2a2214;color:#f3d49a;border-radius:var(--r);font-size:12px;font-weight:500;animation:pulse 1.6s ease-in-out infinite}
.stack-hero[data-demo-state=waiting] .resume{display:inline-flex}
@keyframes pulse{50%{box-shadow:0 0 0 6px rgba(227,177,92,.12)}}
/* demo states drive the strata */
.stack-hero[data-demo-state=defined] .stratum[data-layer=tolang] .tile{animation:lit 1.4s var(--ease) both}
.stack-hero[data-demo-state=defined] .stratum[data-layer=tolang] .tile:nth-child(2){animation-delay:.15s}
.stack-hero[data-demo-state=defined] .stratum[data-layer=tolang] .tile:nth-child(3){animation-delay:.3s}
.stack-hero[data-demo-state=defined] .stratum[data-layer=tolang] .tile:nth-child(4){animation-delay:.45s}
@keyframes lit{30%{border-color:var(--accent);background:rgba(46,232,223,.12)}100%{border-color:var(--accent-line);background:rgba(46,232,223,.05)}}
.stack-hero:is([data-demo-state=authorized],[data-demo-state=waiting],[data-demo-state=resumed],[data-demo-state=verified]) .tile[data-gate]{border-color:var(--accent);background:rgba(46,232,223,.1)}
.stack-hero:is([data-demo-state=authorized],[data-demo-state=waiting],[data-demo-state=resumed],[data-demo-state=verified]) .tile[data-gate]::after{border-color:var(--accent);background:var(--accent)}
.stack-hero[data-demo-state=denied] .tile[data-gate]{border-color:var(--amber);background:rgba(227,177,92,.1);color:#f3d49a;animation:shake .45s}
.stack-hero[data-demo-state=denied] .tile[data-gate]::after{border-color:var(--amber);background:var(--amber)}
.stack-hero[data-demo-state=denied] .stratum:is([data-layer=tvm],[data-layer=blockgit]){opacity:.45}
@keyframes shake{25%{transform:translateX(-4px)}75%{transform:translateX(4px)}}
.stack-side{border:0;border-inline-start:1px solid var(--line);border-radius:0;padding:18px;background:rgba(10,16,22,.5);display:flex;flex-direction:column;gap:18px;cursor:pointer}
.stack-hero[data-layer=glvm] .stack-side{box-shadow:inset 3px 0 0 var(--accent)}
.status{display:inline-flex;align-items:center;font:500 10.5px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;padding:5px 8px;border-radius:2px;border:1px solid var(--line-3);color:var(--text-2)}
.status.current{border-color:var(--accent-line);color:var(--accent)}
.status.evolving{border-color:rgba(227,177,92,.45);color:#e9c98d}
.status.roadmap{border-style:dashed;color:var(--muted)}
.stack-side .status{margin-inline-start:auto}
.substrates{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.substrates li{display:flex;align-items:center;gap:10px;padding:11px 12px;border:1px solid var(--line);border-radius:3px;background:var(--panel);font-size:13.5px}
.substrates li>span:first-child{flex:1}
.vm{display:flex;gap:3px}
.vm i{width:7px;height:7px;background:var(--line-3);animation:blink 2.4s var(--d) infinite}
@keyframes blink{0%,70%,100%{background:var(--line-3)}10%{background:var(--accent)}}
.vm-label{font:500 10px var(--mono);letter-spacing:.1em;color:var(--faint)}
.trace{margin-top:auto;border-top:1px solid var(--line);padding-top:14px}
.trace-head{display:flex;justify-content:space-between;font:500 11px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--faint);margin-bottom:10px}
.trace-head .replay{color:var(--accent)}
.trace-status{font-size:13px;color:var(--text);min-height:20px;margin-bottom:8px}
.trace-log{list-style:none;margin:0;padding:0;display:grid;gap:6px;font:12px/1.5 var(--mono);color:var(--text-2);counter-reset:t}
.trace-log li{counter-increment:t;display:flex;gap:8px;animation:rise .4s var(--ease) both}
.trace-log li::before{content:counter(t,decimal-leading-zero);color:var(--faint)}
.trace-log li:last-child{color:var(--accent)}
.trace-log li[data-state=denied],.trace-log li[data-state=waiting]{color:#e9c98d}
.trace-log .trace-idle{font-family:var(--sans);font-size:13px;color:var(--muted)}
.trace-log .trace-idle::before{content:none}
.stack-tabs{display:grid;grid-template-columns:repeat(5,1fr);margin-top:14px;border:1px solid var(--line-2);border-radius:var(--r);overflow:hidden;direction:ltr}
.stack-tabs button{position:relative;height:52px;font:500 12px var(--mono);letter-spacing:.16em;color:var(--muted);background:var(--panel);transition:color .2s,background .2s}
.stack-tabs button+button{border-inline-start:1px solid var(--line-2)}
.stack-tabs button::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:var(--accent);transform:scaleX(0);transition:transform .35s var(--ease)}
.stack-tabs button:hover{color:var(--text)}
.stack-tabs button[aria-selected=true]{color:var(--text);background:var(--panel-3)}
.stack-tabs button[aria-selected=true]::before{transform:none}
.stack-read{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:24px 64px;padding-top:28px;margin-top:28px;border-top:1px solid var(--line)}
.read-lead{color:var(--muted);font-size:15px;line-height:1.7}
.read-lead strong{color:var(--text);font-weight:550}
.read-layer{min-height:180px}
.read-layer>*{animation:rise .45s var(--ease) both}
.read-tag{font:500 11px var(--mono);letter-spacing:.16em;color:var(--accent)}
.read-layer h3{font-size:24px;line-height:1.3;margin:10px 0 12px}
.read-layer p{color:var(--text-2);font-size:15.5px;line-height:1.75;max-width:62ch}
.read-agent{margin-top:14px;padding-inline-start:14px;border-inline-start:2px solid var(--accent-line)}
.read-agent span{display:block;font:500 11px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:4px}
.read-layer .text-link{margin-top:16px}

/* Sections */
.section{padding-block:112px 120px;position:relative}
.sec-head{max-width:760px;margin-bottom:56px}
.sec-head h2,.section h2{font-size:clamp(32px,3.6vw,50px);line-height:1.06}
.sec-head p{margin-top:20px;color:var(--text-2);font-size:17px;max-width:58ch}
html:lang(zh) h2,html:lang(zh-TW) h2,html:lang(ja) h2,html:lang(ko) h2{line-height:1.28;letter-spacing:0}
html:lang(ar) h2{letter-spacing:0;line-height:1.3}
.rv{opacity:0;transform:translateY(22px);transition:opacity .8s var(--ease),transform .8s var(--ease);transition-delay:calc(var(--i,0) * 70ms)}
.rv.in{opacity:1;transform:none}
.spot{position:relative;isolation:isolate}
.spot::before{content:'';position:absolute;inset:0;z-index:-1;border-radius:inherit;background:radial-gradient(420px circle at var(--mx,-999px) var(--my,-999px),rgba(46,232,223,.08),transparent 60%);opacity:0;transition:opacity .3s}
.spot:hover::before{opacity:1}

/* ALUX relationship band */
.alux{position:relative;border-bottom:1px solid var(--line);background:linear-gradient(180deg,var(--bg),var(--bg-2));padding-block:88px}
.alux-grid{display:grid;grid-template-columns:minmax(0,3fr) minmax(0,6fr) minmax(0,3fr);gap:48px;align-items:start}
.alux-mark{display:flex;flex-direction:column;gap:18px;align-self:stretch;justify-content:space-between;padding-inline-end:40px;border-inline-end:1px solid var(--line)}
.alux-mark img{width:180px;height:auto;opacity:.95;transition:opacity .2s}
.alux-mark:hover img{opacity:1}
.alux-rel{font:500 12px/1.4 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
html:lang(zh) .alux-rel,html:lang(zh-TW) .alux-rel,html:lang(ja) .alux-rel,html:lang(ko) .alux-rel,html:lang(ar) .alux-rel{letter-spacing:.04em}
.alux-copy h2{font-size:clamp(26px,2.6vw,36px);line-height:1.2;margin-bottom:16px}
.alux-copy p{color:var(--text-2);font-size:15.5px;max-width:60ch}
.alux-built{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
.alux-built a{font:500 12px var(--mono);letter-spacing:.06em;padding:7px 11px;border:1px solid var(--line-2);border-radius:3px;color:var(--text-2);transition:border-color .2s,color .2s}
.alux-built a:hover{border-color:var(--accent-line);color:var(--accent)}
.alux-links{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.alux-links a{display:grid;grid-template-columns:1fr auto;gap:2px 12px;padding:15px 2px;border-bottom:1px solid var(--line);transition:color .2s,padding .25s var(--ease)}
.alux-links a strong{font-weight:500;font-size:15px}
.alux-links a span{grid-column:1;font:12px var(--mono);color:var(--faint)}
.alux-links a i{grid-row:1/3;grid-column:2;align-self:center;font-style:normal;color:var(--muted);transition:transform .25s var(--ease),color .2s}
.alux-links a:hover{color:var(--accent);padding-inline-start:8px}
.alux-links a:hover i{color:var(--accent);transform:translate(2px,-2px)}

/* Service list */
.svc-list{border-top:1px solid var(--line-2)}
.svc{display:grid;grid-template-columns:72px minmax(0,1.1fr) minmax(0,1fr) 40px;gap:28px;align-items:start;padding:34px 20px;border-bottom:1px solid var(--line-2);transition:background .3s}
.svc:hover{background:rgba(16,27,35,.55)}
.svc-idx{font:500 13px var(--mono);color:var(--faint);padding-top:8px}
.svc h3{font-size:clamp(22px,2.1vw,30px);line-height:1.2;transition:color .25s}
.svc:hover h3{color:var(--accent)}
.svc p{color:var(--text-2);font-size:15.5px;margin-top:10px;max-width:52ch}
.svc-scope{display:flex;flex-wrap:wrap;gap:8px;padding-top:6px}
.svc-scope span{font-size:12.5px;padding:6px 10px;border:1px solid var(--line-2);border-radius:3px;color:var(--text-2)}
.svc-go{justify-self:end;display:grid;place-items:center;width:40px;height:40px;border:1px solid var(--line-2);border-radius:50%;color:var(--muted);transition:border-color .25s,color .25s,transform .3s var(--ease)}
.svc:hover .svc-go{border-color:var(--accent);color:var(--accent);transform:rotate(-45deg)}
html[dir=rtl] .svc:hover .svc-go{transform:rotate(45deg)}

/* Tolang */
.tolang{position:relative;padding-block:112px;background:radial-gradient(900px 500px at 85% 20%,rgba(11,127,168,.12),transparent 70%),var(--bg-2);border-block:1px solid var(--line)}
.tolang-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:64px;align-items:center}
.tolang-copy h2{font-size:clamp(30px,3.2vw,44px);line-height:1.12;margin-bottom:20px}
.tolang-copy p{color:var(--text-2);font-size:16.5px;max-width:50ch;margin-bottom:24px}
.code{margin:0;border:1px solid var(--line-2);border-radius:6px;background:#060a0e;overflow:hidden;box-shadow:0 30px 80px -30px rgba(0,0,0,.7);direction:ltr}
.code-bar{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;border-bottom:1px solid var(--line);font:12px var(--mono);color:var(--muted)}
.code-bar b{font-weight:500;color:var(--text-2)}
.code-dots{display:flex;gap:6px}.code-dots i{width:9px;height:9px;border-radius:50%;background:var(--line-2)}
.code code{font:inherit}
.code pre{margin:0;padding:22px 22px 24px;font:13.5px/1.85 var(--mono);color:#c9d6da;overflow:auto;counter-reset:ln}
.code pre .l{display:block;counter-increment:ln;min-height:1.85em}
.code pre .l::before{content:counter(ln);display:inline-block;width:26px;color:#3a4d55;user-select:none}
.code .c{color:#5d737b}.code .k{color:#7fb5ff}.code .s{color:#e9c98d}.code .o{color:var(--accent)}.code .n{color:#e9f1f2}
.code figcaption{padding:14px 16px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
html[dir=rtl] .code figcaption{direction:rtl}
.pipeline{display:grid;grid-template-columns:repeat(4,1fr);margin-top:72px;border:1px solid var(--line-2);border-radius:var(--r);overflow:hidden}
.pipeline a{position:relative;display:flex;flex-direction:column;gap:10px;padding:22px 20px;background:var(--panel);transition:background .25s}
.pipeline a+a{border-inline-start:1px solid var(--line-2)}
.pipeline a:hover{background:var(--panel-3)}
.pipeline .mono{color:var(--faint)}
.pipeline strong{font-size:17px;font-weight:500}
.tolang-feats{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;margin-top:40px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.tolang-feats article{padding:28px 28px 30px;background:var(--bg-2)}
.tolang-feats h3{font-size:19px;line-height:1.35;margin-bottom:10px}
.tolang-feats p{font-size:15px;color:var(--text-2)}

/* Map entry and marquee */
.map-entry{padding-block:104px 0;overflow:hidden}
.map-head{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:24px 48px;align-items:end;padding-bottom:48px}
.map-head h2{font-size:clamp(32px,3.6vw,50px);line-height:1.06}
.map-head p{grid-column:1;color:var(--text-2);font-size:17px;max-width:56ch}
.map-head .button{grid-column:2;grid-row:1/3}
.marquee{border-block:1px solid var(--line);padding-block:22px;mask-image:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent);-webkit-mask-image:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent);direction:ltr}
.marquee-track{display:flex;gap:56px;width:max-content;animation:marq 48s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee a{font-size:clamp(22px,2.4vw,34px);font-weight:500;letter-spacing:-.02em;color:var(--faint);white-space:nowrap;transition:color .25s}
.marquee a:hover{color:var(--accent)}
@keyframes marq{to{transform:translateX(-50%)}}

/* Contact band */
.contact-band{position:relative;padding-block:112px;overflow:hidden;isolation:isolate}
.contact-band::before{content:'';position:absolute;inset:auto -10% -60% -10%;height:120%;z-index:-1;background:radial-gradient(50% 60% at 50% 100%,rgba(46,232,223,.14),rgba(11,127,168,.06) 50%,transparent 75%)}
.contact-band>.wrap{display:flex;justify-content:space-between;align-items:flex-end;gap:40px;flex-wrap:wrap;padding-top:64px;border-top:1px solid var(--line)}
.contact-band .eyebrow{margin-bottom:16px}
.contact-band h2{font-size:clamp(34px,4.4vw,62px);line-height:1.04;max-width:16ch}
html:lang(zh) .contact-band h2,html:lang(zh-TW) .contact-band h2,html:lang(ja) .contact-band h2,html:lang(ko) .contact-band h2{max-width:22ch;line-height:1.22}

/* Footer */
.footer{border-top:1px solid var(--line);background:var(--bg-2);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));gap:40px}
.footer-wordmark{font-size:24px;font-weight:600;letter-spacing:-.03em}
.footer-grid>div>p{color:var(--muted);font-size:14px;margin-top:10px;max-width:30ch}
.footer-contact{margin-top:28px}
.footer-contact>span{display:block;font:500 11px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--faint);margin-bottom:6px}
.footer-email{display:inline-flex;align-items:center;gap:8px;font-size:15px;color:var(--text);direction:ltr;transition:color .2s}
.footer-email:hover{color:var(--accent)}
.footer h3{font:500 11px/1.4 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--faint);margin-bottom:16px}
html:lang(zh) .footer h3,html:lang(zh-TW) .footer h3,html:lang(ja) .footer h3,html:lang(ko) .footer h3,html:lang(ar) .footer h3{letter-spacing:.04em}
.footer-link{display:flex;align-items:center;gap:6px;width:fit-content;font-size:14px;color:var(--text-2);padding-block:5px;transition:color .2s}
.footer-link svg.arrow{width:12px;height:12px;opacity:0;transition:opacity .2s}
.footer-link:hover{color:var(--text)}
.footer-link:hover svg.arrow{opacity:1}
.footer-base{display:flex;justify-content:space-between;gap:20px;margin-top:56px;padding-block:24px;border-top:1px solid var(--line);font-size:13px;color:var(--faint)}

/* Inner pages */
.breadcrumb{display:flex;flex-wrap:wrap;gap:10px;align-items:center;padding-top:28px;font-size:13px;color:var(--faint)}
.breadcrumb a:hover{color:var(--text)}
.breadcrumb [aria-current]{color:var(--text-2)}
.page-hero{position:relative;padding-block:56px 88px;display:grid;grid-template-columns:minmax(0,1fr);gap:48px}
.page-hero.with-visual{grid-template-columns:minmax(0,7fr) minmax(0,5fr);align-items:end}
.page-hero h1{font-size:clamp(40px,5vw,72px);line-height:1.02;letter-spacing:-.045em;max-width:17ch}
.page-hero>div>p,.page-hero>p{color:var(--text-2);font-size:18px;line-height:1.7;margin:24px 0 32px;max-width:58ch}
.page-hero>.lead{margin-bottom:0}
html:lang(zh) .page-hero h1,html:lang(zh-TW) .page-hero h1,html:lang(ja) .page-hero h1,html:lang(ko) .page-hero h1{line-height:1.2;letter-spacing:0;max-width:20ch;font-size:clamp(34px,4.2vw,58px)}
html:lang(ar) .page-hero h1{letter-spacing:0;line-height:1.25}
.service-index{display:flex;flex-direction:column;border-top:1px solid var(--line-2)}
.service-index-link{display:grid;grid-template-columns:40px 1fr auto;gap:12px;align-items:center;padding:18px 4px;border-bottom:1px solid var(--line-2);font-size:16px;color:var(--text);background:none!important;transition:color .2s,padding .25s var(--ease)}
.service-index-link:hover{color:var(--accent);padding-inline-start:10px}
.service-index-link .mono{color:var(--faint)}
.scope-panel{padding:28px;border:1px solid var(--line-2);border-radius:6px;background:var(--panel)}
.scope-panel .eyebrow{margin-bottom:14px}
.scope-panel p{display:flex;gap:14px;align-items:baseline;padding:12px 0;border-top:1px solid var(--line);font-size:16px}
.scope-panel .mono{color:var(--accent)}
.light{background:var(--bg-2);border-block:1px solid var(--line)}
.detail-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:64px;align-items:start}
.detail-grid>div:first-child{position:sticky;top:112px}
.detail-grid h2{font-size:clamp(28px,3vw,42px);line-height:1.12}
.numbered-list{border-top:1px solid var(--line-2)}
.numbered-list article{display:grid;grid-template-columns:48px 1fr;gap:16px;padding:22px 0;border-bottom:1px solid var(--line-2)}
.numbered-list .mono{color:var(--accent);padding-top:5px}
.numbered-list h3{font-size:19px;line-height:1.45;font-weight:500;letter-spacing:-.01em}
.numbered-list p{font-size:16px;color:var(--text-2)}
.related{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding-block:56px}
.related h3{width:100%;font:500 11px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--faint);margin-bottom:6px}
.related-link{display:inline-flex;align-items:center;gap:8px;padding:9px 14px;border:1px solid var(--line-2);border-radius:var(--r);font-size:14px;color:var(--text-2);transition:border-color .2s,color .2s}
.related-link:hover{border-color:var(--accent-line);color:var(--accent)}
.process{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.process article{padding:30px 28px 34px;background:var(--bg)}
.light .process article{background:var(--bg-2)}
.process .mono{color:var(--accent)}
.process h3{font-size:21px;margin:14px 0 10px}
.process p{color:var(--text-2);font-size:15px}
.section-heading{max-width:760px;margin-bottom:48px}
.section-heading>p{margin-top:18px;color:var(--text-2);font-size:17px;max-width:58ch}
.section-end{margin-top:40px}
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:72px;align-items:start}
.split p{color:var(--text-2);font-size:16.5px;margin-top:18px;max-width:56ch}
.split p.note{font-size:14px;color:var(--muted)}
.split .text-link,.split .button{margin-top:26px}
.stack-flow{border-top:1px solid var(--line-2)}
.stack-flow a{display:grid;grid-template-columns:40px 130px 1fr 20px;gap:14px;align-items:center;padding:20px 4px;border-bottom:1px solid var(--line-2);transition:background .25s,padding .25s var(--ease)}
.stack-flow a:hover{background:var(--panel);padding-inline:12px}
.stack-flow .mono{color:var(--faint)}
.stack-flow strong{font-weight:550;font-size:17px}
.stack-flow a>span:not(.mono){font-size:14px;color:var(--text-2)}
.tech-directory{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.tech-directory a{display:flex;flex-direction:column;gap:10px;padding:26px 24px;background:var(--bg);min-height:170px;transition:background .25s}
.tech-directory a:hover{background:var(--panel-2)}
.tech-directory .mono{color:var(--accent);letter-spacing:.12em}
.tech-directory h3{font-size:18px;line-height:1.4;font-weight:500;letter-spacing:-.01em}
.tech-directory a>span:last-child{margin-top:auto;display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.tech-directory a:hover>span:last-child{color:var(--accent)}

/* Technology detail */
.tech-detail-hero{padding-block:40px 80px}
.tech-detail-hero>h1{font-size:clamp(46px,6vw,88px);line-height:1;letter-spacing:-.05em;margin-bottom:40px}
.detail-status{margin-top:20px}
.tabs{display:flex;flex-wrap:wrap;border:1px solid var(--line-2);border-radius:var(--r);overflow:hidden;margin-bottom:24px;width:fit-content}
.tabs button{height:44px;padding:0 20px;font:500 12px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted);background:var(--panel)}
.tabs button+button{border-inline-start:1px solid var(--line-2)}
.tabs button[aria-selected=true]{color:var(--accent-ink);background:var(--accent)}
.tech-panel{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:48px;align-items:start}
.diagram{position:relative;border:1px solid var(--line-2);border-radius:6px;background-color:var(--panel);background-image:linear-gradient(rgba(120,170,180,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(120,170,180,.05) 1px,transparent 1px);background-size:24px 24px;padding:20px;direction:ltr;overflow:hidden}
.diagram svg{display:block;width:100%;height:auto;font-family:var(--mono)}
.diagram .line{fill:none;stroke:#3d6470;stroke-width:1.4}
.diagram .signal{stroke:var(--accent);stroke-dasharray:4 5;animation:dash 1.2s linear infinite}
@keyframes dash{to{stroke-dashoffset:-18}}
.diagram .node{fill:#0f1c24;stroke:#335461;stroke-width:1.2}
.diagram .accent{fill:var(--accent)}
.diagram .muted{fill:#335461}
.diagram text{fill:#c9d6da;font-size:13px;text-anchor:middle}
.diagram .big{font:600 16px var(--sans);fill:var(--text)}
.diagram .small{font-size:11px;fill:var(--muted)}
.diagram-caption{display:flex;justify-content:space-between;margin-top:12px;color:var(--faint)}
.module-path{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:10px;padding:28px 6px}
.module-path>div{position:relative;display:flex;flex-direction:column;gap:10px;padding:18px 14px;border:1px solid var(--line-2);border-radius:3px;background:var(--panel);min-height:96px}
.module-path>div:first-child{border-color:var(--accent-line)}
.module-path .mono{color:var(--accent)}
.module-path strong{font-weight:500;font-size:15px;line-height:1.35}
.module-path>div:not(:last-child)::after{content:'';position:absolute;top:50%;right:-8px;width:6px;height:1px;background:var(--line-3)}
.mobile-diagram{display:none}
.demo-controls{display:flex;gap:10px;margin-top:14px}
#demo-status{margin-top:10px;font-size:13px;color:var(--text-2)}
.tech-copy .eyebrow{margin-bottom:12px}
.tech-copy h3{font-size:clamp(24px,2.4vw,32px);line-height:1.2;margin-bottom:16px}
.tech-copy>p{color:var(--text-2);font-size:16px}
.agent-fit{margin-top:22px;padding:16px 18px;border:1px solid var(--line-2);border-inline-start:2px solid var(--accent);border-radius:var(--r);background:var(--panel)}
.agent-fit span{display:block;font:500 11px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:6px}
.agent-fit p{font-size:15px;color:var(--text)}
.tech-help{margin-top:22px}
.tech-help h4{font-size:15px;font-weight:550;margin-bottom:6px}
.tech-help p{font-size:15px;color:var(--text-2)}
#tech-link{margin-top:18px}

/* Architecture board (technology page) */
.architecture-section{padding-block:32px 104px}
.arch-controls{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:14px}
.arch-controls p{font-size:14px;color:var(--muted)}
.arch-controls>div{display:flex;gap:8px}
.arch-controls button{height:36px;padding:0 14px;border:1px solid var(--line-2);border-radius:var(--r);background:var(--panel);font-size:13px;color:var(--text-2);transition:border-color .2s,color .2s}
.arch-controls button:hover{border-color:var(--accent-line);color:var(--accent)}
.arch-controls button:first-child{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);font-weight:550}
.arch-step-label{min-height:22px;font:12.5px var(--mono);color:var(--accent);margin-bottom:12px}
.architecture-board{display:grid;grid-template-columns:minmax(0,1fr) 340px;border:1px solid var(--line-2);border-radius:6px;background:linear-gradient(180deg,rgba(16,27,35,.9),rgba(10,16,22,.92))}
.arch-canvas{position:relative;padding:18px;background-image:linear-gradient(rgba(120,170,180,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(120,170,180,.05) 1px,transparent 1px);background-size:24px 24px}
.arch-topline{display:flex;gap:14px;align-items:center;font:500 11px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
.arch-topline span:first-child{color:var(--accent)}
.arch-mode{margin-inline-start:auto;color:var(--faint)}
.arch-global{display:flex;align-items:center;gap:14px;width:100%;padding:14px 16px;border:1px dashed var(--line-3);border-radius:var(--r);background:rgba(10,16,22,.8);margin-bottom:16px;text-align:start;transition:border-color .25s;position:relative;z-index:2}
.arch-global strong{font:500 12px var(--mono);letter-spacing:.14em;color:var(--accent)}
.arch-global span{font-size:14px;color:var(--text-2)}
.arch-global small{margin-inline-start:auto;font:500 10.5px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:#e9c98d}
.arch-layer{position:relative;z-index:2;border:1px solid var(--line-2);border-radius:var(--r);background:rgba(10,16,22,.9);padding:12px;margin-bottom:16px}
.arch-layer:last-of-type{margin-bottom:0}
.layer-heading{display:flex;align-items:center;gap:12px;margin-bottom:10px}
.layer-heading .mono{color:var(--faint)}
.layer-heading h3{font:500 11.5px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--text-2)}
html:lang(zh) .layer-heading h3,html:lang(zh-TW) .layer-heading h3,html:lang(ja) .layer-heading h3,html:lang(ko) .layer-heading h3,html:lang(ar) .layer-heading h3,html:lang(ru) .layer-heading h3{letter-spacing:.04em;font-family:var(--sans);font-size:13px}
.layer-heading .status{margin-inline-start:auto}
.arch-nodes{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.layer-3 .arch-nodes,.layer-4 .arch-nodes{grid-template-columns:repeat(2,1fr)}
.layer-4{border-style:dashed}
.arch-node{position:relative;display:flex;flex-direction:column;align-items:flex-start;gap:6px;padding:13px 12px;min-height:84px;text-align:start;border:1px solid var(--line);border-radius:3px;background:var(--panel);transition:border-color .25s,background .25s,opacity .25s}
.arch-node strong{font-size:14.5px;font-weight:550}
.arch-node>span:not(.node-port){font-size:12.5px;line-height:1.5;color:var(--muted)}
.arch-node small{font:500 10px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:#e9c98d}
.arch-node:hover,.arch-global:hover{border-color:var(--line-3)}
.arch-node[aria-pressed=true],.arch-global[aria-pressed=true]{border-color:var(--accent);background:rgba(15,32,37,.95);box-shadow:inset 3px 0 0 var(--accent)}
.arch-node[aria-pressed=true] strong{color:var(--accent)}
.arch-node.connected{border-color:var(--accent-line)}
.arch-node.dim{opacity:.55}
.node-port{position:absolute;bottom:-4px;left:calc(50% - 3.5px);width:7px;height:7px;border:1px solid var(--line-3);background:var(--bg-2);transform:rotate(45deg)}
.arch-node[aria-pressed=true] .node-port,.arch-node.connected .node-port{border-color:var(--accent);background:var(--accent)}
.arch-lines{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:3;overflow:visible}
.arch-lines path{fill:none;stroke:var(--accent);stroke-width:1.2;opacity:.75;stroke-dasharray:5 4;animation:dash 1.4s linear infinite;vector-effect:non-scaling-stroke}
.arch-inspector{padding:24px;border-inline-start:1px solid var(--line);background:rgba(10,16,22,.6);position:sticky;top:88px;align-self:start;max-height:calc(100vh - 110px);overflow:auto}
.arch-inspector>.eyebrow{display:block;margin:18px 0 6px;font-size:11px}
.arch-inspector h3{font-size:30px;line-height:1.1;margin-bottom:8px}
.arch-inspector h4{font-size:16px;font-weight:500;color:var(--text);line-height:1.45;margin-bottom:10px}
.arch-inspector>p{font-size:14.5px;color:var(--text-2)}
.arch-inspector .agent-fit p{font-size:14px}
.arch-connections{margin-top:18px;display:flex;flex-wrap:wrap;gap:8px}
.arch-connections .eyebrow{width:100%;margin:0 0 2px;font-size:11px}
.arch-connections button{display:inline-flex;align-items:center;gap:6px;padding:7px 11px;border:1px solid var(--line-2);border-radius:3px;font-size:13px;color:var(--text-2);transition:border-color .2s,color .2s}
.arch-connections button:hover{border-color:var(--accent-line);color:var(--accent)}
.arch-connections svg.arrow{width:12px;height:12px}
.arch-inspector .text-link{margin-top:18px}

/* Company, team, join, contact */
.company-art{display:grid;place-items:center;gap:20px;aspect-ratio:1;max-width:420px;justify-self:end;width:100%;border:1px solid var(--line-2);border-radius:6px;background-color:var(--panel);background-image:radial-gradient(circle at 50% 45%,rgba(46,232,223,.12),transparent 60%),linear-gradient(rgba(120,170,180,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(120,170,180,.05) 1px,transparent 1px);background-size:auto,24px 24px,24px 24px;padding:40px;align-content:center}
.brand-symbol{width:62%;aspect-ratio:1;background:url('/assets/concursys-mark-512.png') center/contain no-repeat;animation:spin 40s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.company-art .mono{color:var(--muted)}
.team-section{padding-block:40px 104px}
.team-profile{display:grid;grid-template-columns:320px minmax(0,1fr);gap:64px;padding-block:56px;border-top:1px solid var(--line-2)}
.team-identity>.mono{color:var(--faint)}
.team-avatar{width:100%;aspect-ratio:1;margin:18px 0 22px;border:1px solid var(--line-2);border-radius:6px;background-color:var(--panel);background-size:88%;background-position:center bottom;background-repeat:no-repeat}
.team-identity h2{font-size:30px;line-height:1.15}
.team-identity>p{color:var(--accent);font-size:14px;margin-top:6px}
.team-social{display:flex;flex-wrap:wrap;gap:4px 18px;margin-top:14px}
.team-social .text-link{font-size:13.5px}
.team-bio{padding-top:36px}
.team-bio>p{font-size:17px;line-height:1.85;color:var(--text-2);max-width:66ch;margin-bottom:20px}
.team-focus{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.team-focus span{font-size:13px;padding:7px 12px;border:1px solid var(--line-2);border-radius:3px;color:var(--text-2)}
.contact-page{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:72px;padding-block:56px 104px;align-items:start}
.contact-page h1{font-size:clamp(38px,4.4vw,62px);line-height:1.05;letter-spacing:-.04em}
html:lang(zh) .contact-page h1,html:lang(zh-TW) .contact-page h1,html:lang(ja) .contact-page h1,html:lang(ko) .contact-page h1{letter-spacing:0;line-height:1.25}
.contact-page .lead{color:var(--text-2);font-size:17px;margin:22px 0 30px;max-width:48ch}
.email{display:block;font-size:clamp(22px,2.4vw,30px);font-weight:500;color:var(--accent);direction:ltr;width:fit-content;margin-bottom:14px}
#copy-status{min-height:22px;margin-top:10px;font-size:13px;color:var(--muted)}
#contact-form{display:grid;gap:8px;padding:32px;border:1px solid var(--line-2);border-radius:6px;background:var(--panel)}
#contact-form label{display:flex;gap:4px;font-size:13.5px;font-weight:500;color:var(--text-2);margin-top:10px}
#contact-form label span{color:var(--accent)}
#contact-form input,#contact-form textarea{width:100%;padding:12px 14px;border:1px solid var(--line-2);border-radius:var(--r);background:var(--bg);color:var(--text);font-size:15px;resize:vertical;transition:border-color .2s,box-shadow .2s}
#contact-form input:focus,#contact-form textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(46,232,223,.14)}
#contact-form input:user-invalid,#contact-form textarea:user-invalid{border-color:var(--amber)}
#contact-form .button{margin-top:18px}
.form-hint{font-size:13px;color:var(--muted);margin-top:6px}
.join-email{margin-top:26px}

/* Responsive */
@media (max-width:1100px){
 :root{--gut:28px}
 .header-inner{gap:16px}
 .nav-trigger,.nav-link{padding:0 9px}
 .stack-body{grid-template-columns:minmax(0,1fr)}
 .stack-side{border-inline-start:0;border-top:1px solid var(--line);display:grid;grid-template-columns:1fr 1fr;gap:18px}
 .stack-side .stratum-head{grid-column:1/-1}
 .trace{margin-top:0;border-top:0;padding-top:0}
 .alux-grid{grid-template-columns:1fr 1fr}
 .alux-mark{grid-column:1/-1;flex-direction:row;align-items:center;border-inline-end:0;padding:0 0 28px;border-bottom:1px solid var(--line)}
 .architecture-board{grid-template-columns:minmax(0,1fr)}
 .arch-inspector{position:static;max-height:none;border-inline-start:0;border-top:1px solid var(--line)}
 .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
 #navigation{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;padding:12px var(--gut) 20px;background:rgba(7,11,15,.97);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);max-height:calc(100dvh - 72px);overflow:auto}
 #navigation.open{display:flex}
 .nav-trigger,.nav-link{width:100%;justify-content:space-between;height:52px;font-size:16px;border-bottom:1px solid var(--line);border-radius:0}
 .dropdown,.dropdown.mega{position:static;transform:none!important;width:auto;min-width:0;box-shadow:none;border:0;background:transparent;padding:4px 0 10px;animation:none}
 .mega-columns{grid-template-columns:1fr 1fr}
 #menu{display:flex}
 .header-contact{display:none}
 .hero-head{grid-template-columns:minmax(0,1fr);gap:24px}
 .page-hero.with-visual,.detail-grid,.split,.contact-page,.tolang-grid,.tech-panel{grid-template-columns:minmax(0,1fr);gap:40px}
 .detail-grid>div:first-child{position:static}
 .company-art{justify-self:start;max-width:320px}
 .svc{grid-template-columns:48px 1fr 40px;gap:16px}
 .svc-scope{grid-column:2;grid-row:2}
 .svc-go{grid-column:3;grid-row:1}
 .process{grid-template-columns:minmax(0,1fr)}
 .tech-directory{grid-template-columns:1fr 1fr}
 .team-profile{grid-template-columns:240px 1fr;gap:36px}
 .stack-read{grid-template-columns:minmax(0,1fr);gap:18px}
 .map-head{grid-template-columns:minmax(0,1fr)}
 .map-head .button{grid-column:1;grid-row:auto;justify-self:start}
}
@media (max-width:640px){
 :root{--gut:20px}
 .header-inner{height:64px}
 .hero{margin-top:-64px;padding-top:100px;padding-bottom:72px}
 .hero-title{font-size:clamp(38px,11vw,54px)}
 .rel-ccs{height:24px}.rel-alux{height:15px}.relation{flex-wrap:wrap;gap:12px}.rel-text{flex-basis:100%} html:lang(zh-Hans) .hero-title,html:lang(zh-Hant) .hero-title,html:lang(ja) .hero-title,html:lang(ko) .hero-title{font-size:clamp(30px,8.4vw,42px)}
 html:lang(ar) .hero-title,html:lang(ru) .hero-title,html:lang(de) .hero-title,html:lang(fr) .hero-title,html:lang(es) .hero-title{font-size:clamp(36px,10.5vw,54px)}
 .hero-foot p{font-size:16px}
 .hero-head{margin-bottom:36px}
 .lang-btn>span{display:none}
 .stack-bar{padding:12px}
 .stack-by{display:none}
 .stack-ctrl{width:100%}
 .stack-ctrl select{flex:1;min-width:0}
 .stack-main{padding:12px;gap:22px}
 .stratum-cap{display:none}
 .tiles{grid-template-columns:1fr 1fr}
 .tile{font-size:13px;min-height:48px;padding:11px 10px}
 .stack-side{grid-template-columns:minmax(0,1fr);padding:14px}
 .stack-tabs button{font-size:10.5px;letter-spacing:.06em;height:46px}
 .section{padding-block:80px}
 .alux{padding-block:56px}
 .alux-grid{grid-template-columns:minmax(0,1fr);gap:32px}
 .alux-mark img{width:140px}
 .svc{grid-template-columns:1fr 40px;padding:26px 4px}
 .svc-idx{display:none}
 .svc-main{grid-column:1}
 .svc-scope{grid-column:1/-1;grid-row:auto}
 .svc-go{grid-column:2;grid-row:1}
 .tolang{padding-block:80px}
 .code pre{font-size:12px;padding:16px}
 .pipeline{grid-template-columns:1fr 1fr;margin-top:48px}
 .pipeline a:nth-child(3){border-inline-start:0}
 .pipeline a:nth-child(n+3){border-top:1px solid var(--line-2)}
 .tolang-feats{grid-template-columns:minmax(0,1fr)}
 .map-entry{padding-top:80px}
 .contact-band{padding-block:80px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:32px 20px}
 .footer-grid>div:first-child{grid-column:1/-1}
 .footer-base{flex-direction:column;gap:6px}
 .page-hero{padding-block:36px 64px}
 .tech-directory{grid-template-columns:minmax(0,1fr)}
 .team-profile{grid-template-columns:minmax(0,1fr);gap:12px;padding-block:40px}
 .team-avatar{max-width:260px}
 .team-bio{padding-top:0}
 .numbered-list article{grid-template-columns:36px 1fr}
 .stack-flow a{grid-template-columns:30px 100px 1fr}
 .stack-flow a svg{display:none}
 .arch-nodes{grid-template-columns:1fr 1fr}
 .module-path{grid-auto-flow:row;grid-auto-columns:auto}
 .module-path>div::after{display:none}
 .diagram.has-mobile>svg{display:none}
 .diagram.has-mobile .mobile-diagram{display:grid;gap:8px}
 .mobile-node{display:flex;gap:12px;align-items:center;padding:12px 14px;border:1px solid var(--line-2);border-radius:3px;background:var(--panel);font-size:14px}
 .mobile-node .mono{color:var(--accent)}
 .mobile-node.active{border-color:var(--accent)}
 #contact-form{padding:22px}
 .tabs{width:100%}
 .tabs button{flex:1;padding:0 8px;letter-spacing:.06em}
}
@media (prefers-reduced-motion:reduce){
 html{scroll-behavior:auto}
 *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
 .rv{opacity:1;transform:none}
 .marquee-track{animation:none}
}

.architecture-section .section-heading h2{font-size:clamp(30px,3.2vw,46px);line-height:1.1}
.architecture-section .section-heading .eyebrow{margin-bottom:16px}
html[dir=rtl] .tile,html[dir=rtl] .substrates li>span:first-child,html[dir=rtl] .trace-status,html[dir=rtl] .trace-log,html[dir=rtl] .stratum-sub{direction:rtl;text-align:right}
html[dir=rtl] .stack-title>span:not(.stack-sq){direction:rtl}

.side-note{font-size:14px;line-height:1.6;color:var(--text-2);margin-top:-6px}
.stack-side .substrates{margin-top:-4px}
.hero-foot p{text-wrap:balance}
@media (max-width:640px){.stack-ctrl{flex-wrap:wrap}.stack-ctrl select{order:3;flex:1 1 100%}.stack-ctrl .ctl-run{flex:1}}
.eyebrow,.alux-rel,.stratum-sub,.tile,.svc h3,.page-hero h1,.sec-head h2,.section h2,.detail-grid h2,.contact-band h2,.hero-title,.mobile-node strong,.module-path strong{overflow-wrap:break-word;hyphens:auto}
.alux-rel{overflow-wrap:anywhere}
.diagram-caption{flex-wrap:wrap;gap:4px 16px}.diagram-column,.tech-copy,.diagram{min-width:0}.mobile-node strong{min-width:0}
.demo-controls{flex-wrap:wrap}
.tech-detail-hero>h1{overflow-wrap:break-word;hyphens:auto}
@media (max-width:640px){.tech-detail-hero>h1{font-size:clamp(32px,10vw,46px);margin-bottom:28px}}

/* Effects layer */
.hero-field{position:absolute;inset:0 0 auto 0;width:100%;pointer-events:none;mask-image:radial-gradient(ellipse 75% 70% at 50% 35%,#000 30%,transparent 80%);-webkit-mask-image:radial-gradient(ellipse 75% 70% at 50% 35%,#000 30%,transparent 80%);opacity:.9}
.hero-bg::before{opacity:.55}
/* scroll progress */
.progress{position:fixed;top:0;left:0;right:0;height:2px;z-index:60;pointer-events:none;background:linear-gradient(90deg,var(--accent-deep),var(--accent));transform-origin:0 50%;transform:scaleX(0)}
@supports (animation-timeline:scroll()){.progress{animation:grow linear both;animation-timeline:scroll(root)}@keyframes grow{to{transform:scaleX(1)}}}
html[dir=rtl] .progress{transform-origin:100% 50%}
/* primary button sheen */
.primary{position:relative;overflow:hidden;isolation:isolate}
.primary::after{content:'';position:absolute;inset:0;z-index:-1;background:linear-gradient(110deg,transparent 30%,rgba(255,255,255,.55) 50%,transparent 70%);transform:translateX(-120%);transition:transform .7s var(--ease)}
.primary:hover::after{transform:translateX(120%)}
/* stack tilt and spotlight */
.stack{transform:perspective(1800px) rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg));transition:transform .45s var(--ease),box-shadow .45s;will-change:transform}
.stack .stack-glow{position:absolute;inset:0;pointer-events:none;z-index:4;border-radius:inherit;opacity:0;transition:opacity .3s;background:radial-gradient(520px circle at var(--sx,50%) var(--sy,50%),rgba(46,232,223,.07),transparent 55%)}
.stack.lit .stack-glow{opacity:1}
.stack.lit{box-shadow:0 50px 140px -40px rgba(0,0,0,.85),0 0 0 1px rgba(46,232,223,.12),inset 0 1px 0 rgba(255,255,255,.05)}
/* spine pulse while a task moves between layers */
.stack-main::after{content:'';position:absolute;top:18px;bottom:18px;left:calc(50% - 1px);width:2px;pointer-events:none;background:linear-gradient(180deg,transparent,var(--accent),transparent) 0 -40%/100% 34% no-repeat;opacity:0}
.stack-hero:is([data-demo-state=defined],[data-demo-state=authorized],[data-demo-state=resumed]) .stack-main::after{opacity:1;animation:spine 1.3s linear infinite}
@keyframes spine{to{background-position:0 140%}}
.stack-hero:is([data-demo-state=defined],[data-demo-state=authorized],[data-demo-state=resumed],[data-demo-state=verified]) .stack-main .stratum+.stratum::before{border-color:var(--accent);background:var(--accent);box-shadow:0 0 12px var(--accent)}
/* headings rise word by word */
[data-split] .w{display:inline-block;overflow:clip;vertical-align:top;padding-bottom:.08em;margin-bottom:-.08em}
[data-split] .w>span{display:inline-block;transform:translateY(105%);transition:transform .9s var(--ease);transition-delay:calc(var(--wi) * 45ms)}
[data-split].words-in .w>span{transform:none}
/* Tolang code types in */
.code pre.typing .l{animation:typeline .55s steps(28,end) both;animation-delay:calc(var(--n) * 140ms + 150ms)}
.code pre:not(.typing) .l{clip-path:inset(0 100% 0 0)}
@keyframes typeline{from{clip-path:inset(0 100% 0 0)}to{clip-path:inset(0 0 0 0)}}
.code pre.typing .l:last-child::after{content:'';display:inline-block;width:8px;height:1.1em;margin-inline-start:4px;vertical-align:-2px;background:var(--accent);animation:caret 1s steps(1) infinite;animation-delay:1.6s}
@keyframes caret{50%{opacity:0}}
/* pipeline flow */
.pipeline{position:relative}
.pipeline::before{content:'';position:absolute;left:0;right:0;top:0;height:2px;z-index:2;pointer-events:none;background:linear-gradient(90deg,transparent,var(--accent),transparent) -40% 0/30% 100% no-repeat;animation:flow 3.2s linear infinite}
@keyframes flow{to{background-position:140% 0}}
/* service rows */
.svc{position:relative}
.svc::after{content:'';position:absolute;left:0;bottom:-1px;height:1px;width:100%;background:var(--accent);transform:scaleX(0);transform-origin:0 50%;transition:transform .6s var(--ease)}
html[dir=rtl] .svc::after{transform-origin:100% 50%}
.svc:hover::after{transform:none}
/* ALUX mark */
.alux-mark img{transition:transform .6s var(--ease),opacity .2s}
.alux-mark:hover img{transform:translateY(-3px)}
@media (prefers-reduced-motion:reduce){.stack{transform:none!important}.hero-field{display:none}[data-split] .w>span{transform:none}.code pre .l{clip-path:none!important}.pipeline::before,.stack-main::after{display:none}}
[data-split] .w,[data-split] .w>span{max-width:100%;hyphens:auto;overflow-wrap:break-word}