/* Revision 2 — "managed IT, revised": tracked-changes motif, manuscript margins. */
:root{
  --paper:#f2f4f1; --ink:#17202a; --graphite:#56606b; --rule:#d6dbd4;
  --insert:#2446c7; --strike:#b5432f; --panel:#e7ebe5;
  --display:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --text:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --measure:38rem; --margin:12rem;
}
@media (prefers-color-scheme:dark){:root{
  --paper:#141a20; --ink:#e7eae4; --graphite:#9ba5ae; --rule:#2b333b;
  --insert:#8ea6ff; --strike:#e27b66; --panel:#1b232a;
}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--paper);color:var(--ink);font:400 1.0625rem/1.65 var(--text)}
a{color:var(--insert);text-underline-offset:.18em}
a:focus-visible,button:focus-visible{outline:3px solid var(--insert);outline-offset:3px;border-radius:2px}
.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:16px;background:var(--paper);padding:8px 12px;z-index:9}

.page{max-width:calc(var(--margin) + var(--measure) + 6rem);margin:0 auto;padding:0 24px}
.row{display:grid;grid-template-columns:var(--margin) minmax(0,var(--measure));column-gap:3rem}
.note{font:500 .875rem/1.45 var(--display);color:var(--graphite);padding-top:.45rem}
@media (max-width:820px){.row{grid-template-columns:1fr}.note{padding:0 0 .4rem}}

/* header */
.top{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:28px 0;border-bottom:1px solid var(--rule)}
.mark{font:700 1.25rem/1 var(--display);color:var(--ink);text-decoration:none;letter-spacing:-.01em}
.mark sup{color:var(--insert);font-size:.6em;margin-left:.06em}
.top nav{display:flex;gap:1.4rem;flex-wrap:wrap}
.top nav a{font:500 .95rem/1 var(--display);color:var(--graphite);text-decoration:none}
.top nav a:hover{color:var(--ink)}
@media (max-width:560px){.top nav{display:none}}

/* hero */
.hero{padding:clamp(3.5rem,9vw,7rem) 0 3rem}
h1{font:600 clamp(2.6rem,7vw,4.5rem)/1.05 var(--display);letter-spacing:-.025em;margin:0 0 2.4rem}
.revs{list-style:none;margin:0;padding:0;border-top:1px solid var(--rule)}
.revs li{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:1.5rem;padding:1rem 0;border-bottom:1px solid var(--rule);font:500 clamp(1.05rem,2.2vw,1.3rem)/1.35 var(--display)}
@media (max-width:620px){.revs li{grid-template-columns:1fr;gap:.25rem}}
.revs del{color:var(--graphite);text-decoration:none;position:relative;justify-self:start}
.revs del::after{content:"";position:absolute;left:-2px;right:-2px;top:52%;height:2px;background:var(--strike);transform-origin:left;animation:strike .5s cubic-bezier(.6,0,.2,1) both}
.revs ins{text-decoration:none;color:var(--insert);font-weight:600;animation:insert .45s ease-out both}
.revs li:nth-child(1) del::after{animation-delay:.35s}.revs li:nth-child(1) ins{animation-delay:.75s}
.revs li:nth-child(2) del::after{animation-delay:.6s}.revs li:nth-child(2) ins{animation-delay:1s}
.revs li:nth-child(3) del::after{animation-delay:.85s}.revs li:nth-child(3) ins{animation-delay:1.25s}
.revs li:nth-child(4) del::after{animation-delay:1.1s}.revs li:nth-child(4) ins{animation-delay:1.5s}
@keyframes strike{from{transform:scaleX(0)}to{transform:scaleX(1)}}
@keyframes insert{from{opacity:0;transform:translateY(.25em)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.revs del::after,.revs ins{animation:none}}
.lede{margin:2.2rem 0 1.6rem;max-width:34rem;color:var(--graphite)}
.cta{display:inline-block;font:600 1rem/1 var(--display);background:var(--ink);color:var(--paper);text-decoration:none;padding:1rem 1.35rem;border-radius:3px}
.cta:hover{background:var(--insert);color:#fff}

/* sections */
section.block{padding:4.5rem 0;border-top:1px solid var(--rule)}
h2{font:600 clamp(1.6rem,3.2vw,2.1rem)/1.15 var(--display);letter-spacing:-.015em;margin:0 0 1.4rem}
h3{font:600 1.1rem/1.35 var(--display);margin:0 0 .35rem}
p{margin:0 0 1rem}
.services{margin:0;padding:0;list-style:none}
.services li{padding:1.3rem 0;border-bottom:1px solid var(--rule)}
.services li:first-child{padding-top:0}
.services p{margin:0;color:var(--graphite)}
.services .lead h3{font-size:1.3rem}
.steps{counter-reset:s;list-style:none;margin:1.6rem 0 0;padding:0}
.steps li{counter-increment:s;display:grid;grid-template-columns:2.2rem 1fr;padding:.85rem 0;border-bottom:1px solid var(--rule)}
.steps li::before{content:counter(s);font:700 1rem/1.6 var(--display);color:var(--insert)}
.steps p{margin:0;color:var(--graphite)}
.facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.5rem;margin:1.8rem 0 0;padding:1.4rem 0 0;border-top:1px solid var(--rule)}
.facts div{font:500 .95rem/1.4 var(--display);color:var(--graphite)}
.facts strong{display:block;font:600 1.5rem/1.15 var(--display);color:var(--ink);letter-spacing:-.02em;margin-bottom:.3rem}
@media (max-width:620px){.facts{grid-template-columns:1fr}}
.contact{background:var(--panel);margin:0 -24px;padding:4.5rem 24px}
.email{font:600 clamp(1.4rem,4vw,2.1rem)/1.2 var(--display);letter-spacing:-.01em;color:var(--ink);text-decoration-color:var(--insert);text-decoration-thickness:2px;word-break:break-word}
.email:hover{color:var(--insert)}

/* prose pages */
.prose{padding:4rem 0 2rem}
.prose h1{font-size:clamp(2.2rem,5vw,3.2rem);margin-bottom:.6rem}
.prose h2{font-size:1.35rem;margin:2.4rem 0 .5rem}
.prose p{color:var(--graphite)}
.updated{font:500 .9rem/1 var(--display);color:var(--graphite);margin-bottom:2rem}

footer{display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;padding:2rem 0 3rem;border-top:1px solid var(--rule);font:500 .9rem/1.4 var(--display);color:var(--graphite)}
footer a{color:var(--graphite)}