:root{
  --bg:#fff; --text:#222; --muted:#666; --link:#0b57d0; --rule:#e4e4e4;
}
[data-theme=dark]{--bg:#161616; --text:#e6e6e6; --muted:#9a9a9a; --link:#7aa7ff; --rule:#2c2c2c}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);
  font:17px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
a{color:var(--link);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{text-decoration-thickness:2px}
h1,h2{line-height:1.25}

.wrap{max-width:900px;margin:0 auto;padding:72px 24px;display:grid;grid-template-columns:230px 1fr;gap:64px}
aside{position:sticky;top:72px;align-self:start}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
section[id]{scroll-margin-top:32px}
:focus-visible{outline:2px solid var(--link);outline-offset:3px;border-radius:2px}
.skip{position:absolute;left:-999px;top:8px;background:var(--text);color:var(--bg);padding:8px 14px;z-index:10;text-decoration:none}
.skip:focus{left:8px}
.brand{font-size:1.25rem;font-weight:700;margin:0 0 6px;line-height:1.25}
.brand a{color:inherit;text-decoration:none}
.role{margin:0 0 22px;color:var(--muted)}
.menu,.links{list-style:none;margin:0 0 24px;padding:0}
.menu li,.links li{margin:4px 0}
.menu a{color:var(--text);text-decoration:none}
.menu a:hover{color:var(--link);text-decoration:underline}
.links{padding-top:18px;border-top:1px solid var(--rule)}
.principles{list-style:none;counter-reset:p;margin:0;padding:0}
.principles li{counter-increment:p;padding:16px 0 4px 34px;border-top:1px solid var(--rule);position:relative}
.principles li::before{content:counter(p) ".";position:absolute;left:0;top:16px;color:var(--muted)}
.principles h3{font-size:1rem;margin:0 0 4px}
.principles p{margin:0 0 12px;color:var(--muted)}
.glance{margin-top:26px;padding:18px 0 0;border-top:1px solid var(--rule)}
.faq details{border-bottom:1px solid var(--rule)}
.faq summary{cursor:pointer;padding:12px 0;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--muted);font-weight:400}
.faq details[open] summary::after{content:"–"}
.faq details p{color:var(--muted);margin:0 0 14px}
#theme{font:inherit;font-size:.9rem;color:var(--muted);background:none;border:0;padding:0;cursor:pointer;text-decoration:underline;text-underline-offset:3px}
#theme:hover{color:var(--text)}

main section{margin-bottom:44px}
.intro{font-size:1.35rem;line-height:1.45;font-weight:400;margin:0 0 20px}
h3{line-height:1.3}
h2{font-size:1rem;margin:0 0 14px;padding-bottom:8px;border-bottom:1px solid var(--rule)}
p{margin:0 0 16px}

.list{list-style:none;margin:0 0 16px;padding:0}
.list li{display:flex;flex-direction:column;margin-bottom:14px}
.list span{color:var(--muted)}

main{min-width:0}
.products{list-style:none;margin:0 0 16px;padding:0;display:grid;gap:36px}
.products h3{font-size:1.05rem;margin:12px 0 2px}
.products p{margin:0;color:var(--muted)}
.shot{display:block;border:1px solid var(--rule);border-radius:8px;overflow:hidden;line-height:0}
.shot img{width:100%;height:auto;display:block;transition:opacity .2s}
.shot:hover img{opacity:.9}

dl{margin:0;display:grid;grid-template-columns:100px 1fr;gap:6px 16px}
dt{color:var(--muted)}
dd{margin:0}

footer{color:var(--muted);font-size:.9rem;padding-top:20px;border-top:1px solid var(--rule)}

@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
@media print{
  aside nav,#theme,.skip{display:none}
  .wrap{display:block;padding:0}
  aside{position:static}
  a{color:inherit;text-decoration:none}
  .shot{display:none}
}
@media(max-width:720px){
  .menu{display:flex;flex-wrap:wrap;gap:4px 18px}
  .wrap{grid-template-columns:1fr;gap:36px;padding:40px 20px}
  aside{position:static}
  .links{display:flex;gap:18px;flex-wrap:wrap}
  dl{grid-template-columns:1fr;gap:0}
  dd{margin-bottom:12px}
}