:root{--bg:#F6FAF9;--surface:#FFFFFF;--text:#13262B;--text2:#506368;--primary:#0E7C7B;--on-primary:#FFFFFF;--soft:#ECF6F4;--divider:#D0DFDF;--warn:#8A5600;--warn-soft:#FFF1D6;--sky:#0369A1;--sky-soft:#E0F0FA;--ok:#1B7A3E;--r:16px;--r-sm:10px}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#0F1C1F;--surface:#16272B;--text:#E8F1F0;--text2:#B2C5C7;--primary:#5FC9C4;--on-primary:#0F1C1F;--soft:#203A3D;--divider:#365055;--warn:#F2C15A;--warn-soft:#3A3120;--sky:#38BDF8;--sky-soft:#10334A;--ok:#7ED49A}}
:root[data-theme=dark]{--bg:#0F1C1F;--surface:#16272B;--text:#E8F1F0;--text2:#B2C5C7;--primary:#5FC9C4;--on-primary:#0F1C1F;--soft:#203A3D;--divider:#365055;--warn:#F2C15A;--warn-soft:#3A3120;--sky:#38BDF8;--sky-soft:#10334A;--ok:#7ED49A}
.lg-d{display:none!important}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .lg-l{display:none!important}:root:not([data-theme=light]) .lg-d{display:block!important}}
:root[data-theme=dark] .lg-l{display:none!important}:root[data-theme=dark] .lg-d{display:block!important}
.theme{display:none;align-items:center;justify-content:center;width:36px;height:36px;border:1.5px solid var(--divider);border-radius:999px;background:none;color:var(--text);cursor:pointer;padding:0}
.js .theme{display:inline-flex}.theme:hover{border-color:var(--primary);color:var(--primary)}.theme svg{width:18px;height:18px}
.theme .sun{display:none}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .theme .sun{display:block}:root:not([data-theme=light]) .theme .moon{display:none}}
:root[data-theme=dark] .theme .sun{display:block}:root[data-theme=dark] .theme .moon{display:none}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:1.0625rem/1.6 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
a{color:var(--primary);text-underline-offset:3px}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
.skip{position:absolute;left:16px;top:-60px;background:var(--primary);color:var(--on-primary);padding:10px 16px;border-radius:var(--r-sm);z-index:10}
.skip:focus{top:12px}
.wrap{max-width:1040px;margin:0 auto;padding:0 16px}
.narrow{max-width:720px}
header.top{padding:16px 0}
header.top .wrap{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:10px 12px}
header.top .logo{justify-self:start}
header.top .word{grid-column:2}
header.top .hnav{grid-column:1/-1;justify-self:center}
.word img{display:block;height:30px;width:auto}
.logo img{display:block;height:44px;width:auto}
.lang{font-size:.95rem;font-weight:600;text-decoration:none;border:1.5px solid var(--divider);border-radius:999px;padding:6px 14px;color:var(--text)}
.lang:hover{border-color:var(--primary);color:var(--primary)}
h1,h2,h3{line-height:1.2;letter-spacing:-.01em;margin:0 0 .5em}
h1{font-size:clamp(2rem,6.5vw,3.1rem);font-weight:750}
h2{font-size:clamp(1.4rem,4vw,1.85rem);font-weight:700;margin-top:2.2em}
h3{font-size:1.15rem}
p{margin:0 0 1em}
.hero{padding:24px 0 56px}
.hero .wrap{display:grid;gap:36px;align-items:center}
.lead{font-size:1.2rem;color:var(--text2);max-width:34em}
.soon{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 8px}
.pill{display:inline-block;border:1.5px solid var(--divider);background:var(--surface);border-radius:999px;padding:8px 16px;font-weight:600;font-size:.95rem}
.hint{color:var(--text2);font-size:.95rem}
.btn{display:inline-block;background:var(--primary);color:var(--on-primary);font-weight:650;text-decoration:none;padding:12px 22px;border-radius:999px}
.btn:hover{filter:brightness(1.06)}
.mock{display:block;width:100%;max-width:380px;height:auto;margin:0 auto}
.mock .card{fill:var(--surface);stroke:var(--divider)}
.mock .t{fill:var(--text);font:600 15px system-ui,sans-serif}
.mock .t2{fill:var(--text2);font:400 12px system-ui,sans-serif}
.mock .big{fill:var(--text);font:700 22px system-ui,sans-serif}
.mock .ring-bg{fill:none;stroke:var(--soft);stroke-width:9}
.mock .ring{fill:none;stroke:var(--primary);stroke-width:9;stroke-linecap:round}
.mock .line{fill:none;stroke:var(--primary);stroke-width:3;stroke-linecap:round;stroke-linejoin:round}
.mock .grid{stroke:var(--divider);stroke-width:1}
.mock .dot{fill:var(--warn)}
.mock .av{fill:var(--sky-soft)}
.mock .avt{fill:var(--sky);font:700 15px system-ui,sans-serif}
.mock .chip{fill:var(--soft)}
.mock .chipt{fill:var(--primary);font:600 11px system-ui,sans-serif}
.band{padding:56px 0}
.band.alt{background:var(--surface);border-block:1px solid var(--divider)}
.band h2:first-child{margin-top:0}
.grid3{display:grid;gap:16px;margin-top:24px}
.card{background:var(--surface);border:1px solid var(--divider);border-radius:var(--r);padding:20px}
.band.alt .card{background:var(--bg)}
.card h3{margin-bottom:.35em}
.card p{margin:0;color:var(--text2)}
.note{background:var(--soft);border-radius:var(--r);padding:18px 20px;margin-top:24px}
.note p{margin:0}
ul.ticks{list-style:none;padding:0;margin:16px 0 0}
ul.ticks li{padding-left:28px;position:relative;margin-bottom:.6em}
ul.ticks li:before{content:"";position:absolute;left:4px;top:.55em;width:8px;height:8px;border-radius:50%;background:var(--primary)}
main.doc{padding:16px 0 64px}
main.doc h1{font-size:clamp(1.8rem,5.5vw,2.5rem)}
main.doc ul,main.doc ol{padding-left:1.4em;margin:0 0 1em}
main.doc li{margin-bottom:.4em}
.tablewrap{overflow-x:auto;margin:0 0 1.2em;border:1px solid var(--divider);border-radius:var(--r-sm)}
table{border-collapse:collapse;width:100%;font-size:.95rem;min-width:480px}
th,td{text-align:left;vertical-align:top;padding:10px 12px;border-bottom:1px solid var(--divider)}
th{background:var(--soft)}
tr:last-child td{border-bottom:0}
code{font:.9em ui-monospace,Menlo,Consolas,monospace;background:var(--soft);padding:1px 5px;border-radius:5px}
mark.todo{background:var(--warn-soft);color:var(--warn);border:1px dashed var(--warn);border-radius:5px;padding:0 5px;font-weight:600}
footer.foot{border-top:1px solid var(--divider);padding:32px 0 40px;color:var(--text2);font-size:.95rem;background:var(--surface)}
footer.foot .wrap{display:grid;gap:20px}
footer.foot nav ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
footer.foot a{color:var(--text)}
footer.foot p{margin:0 0 .3em}
footer.foot .fmail{margin-top:12px}
footer.foot .copy{grid-column:1/-1;text-align:center;border-top:1px solid var(--divider);padding-top:16px;margin:0}
.err{padding:72px 0;text-align:center}
@media (min-width:760px){
 header.top .hnav{grid-column:3;justify-self:end}
 .logo img{height:60px}
 .word img{height:40px}
 .hero .wrap{grid-template-columns:1.15fr .85fr;gap:56px}
 .grid3{grid-template-columns:repeat(3,1fr)}
 footer.foot .wrap{grid-template-columns:1.4fr 1fr}
 .hero{padding:48px 0 80px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}
.after{margin-top:20px}
.hero .wrap>*,.grid3>*{min-width:0}
.hnav{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:flex-end}
.faqlink{font-size:.95rem;font-weight:600;color:var(--text);text-decoration:none;padding:6px 4px}
.faqlink:hover{color:var(--primary);text-decoration:underline}
.band.alt#faq{scroll-margin-top:8px}
.faq details{background:var(--bg);border:1px solid var(--divider);border-radius:var(--r-sm);margin-bottom:10px}
.faq summary{cursor:pointer;font-weight:650;padding:14px 16px;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";color:var(--primary);font-weight:700;font-size:1.2rem;line-height:1.3}
.faq details[open] summary:after{content:"\2212"}
.faq details p{margin:0;padding:0 16px 16px;color:var(--text2)}