/* DTS Ops & Automation — "Technical Journal" brand.
   Source of truth: reference/brand/DESIGN-SYSTEM.md
   Shared stylesheet for the static dts-ops.com brand site. */

:root{
  --paper:#eef0ee; --ink:#1b2a2a; --muted:#586663; --line:#cfd6d2;
  --pine:#0f5c52; --live:#1f8a5b; --grid:#d6ddd8; --tint:#e0eae8; --danger:#a23a2a;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--paper);color:var(--ink);font-family:"Newsreader",Georgia,serif;
  font-size:18px;line-height:1.55;-webkit-font-smoothing:antialiased}
.wrap{max-width:1180px;margin:0 auto;padding:0 36px}
.mono{font-family:"IBM Plex Mono",monospace}
.kicker{font-family:"IBM Plex Mono",monospace;font-size:11.5px;font-weight:500;letter-spacing:.2em;text-transform:uppercase;color:var(--muted)}
a{color:inherit;text-decoration:none}
em{font-style:italic;color:var(--pine)}
.graph{background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:26px 26px;background-position:-1px -1px}

/* masthead + nav */
header{border-bottom:2px solid var(--ink)}
.masthead{padding:18px 0 16px;display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap}
.brand{display:flex;align-items:baseline;gap:12px}
.brand .name{font-size:26px;font-weight:600;letter-spacing:-.01em}
.brand .tag{font-family:"IBM Plex Mono",monospace;font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
nav.top{display:flex;gap:26px;align-items:center}
nav.top a{font-family:"IBM Plex Mono",monospace;font-size:13px;font-weight:500;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);padding-bottom:3px;border-bottom:2px solid transparent;transition:.16s}
nav.top a:hover{color:var(--ink)}
nav.top a.active{color:var(--ink);border-bottom-color:var(--pine)}

/* hero */
.hero{padding:64px 0 56px}
.hero h1{font-size:clamp(38px,5.6vw,76px);font-weight:500;line-height:1;letter-spacing:-.02em;max-width:17ch}
.hero .dek{margin-top:24px;max-width:54ch;font-size:21px;line-height:1.5;color:var(--muted)}
.hero .actions{margin-top:34px;display:flex;gap:14px;flex-wrap:wrap}

/* section */
section{border-top:2px solid var(--ink);padding:56px 0}
h2{font-size:clamp(26px,3.2vw,40px);font-weight:600;letter-spacing:-.01em;max-width:22ch}
.lead{margin-top:20px;max-width:62ch;font-size:18px;line-height:1.6}
.lead p+p{margin-top:14px}
.muted{color:var(--muted)}
.eyebrow{margin-bottom:18px}

/* proof strip */
.proof{display:grid;grid-template-columns:repeat(4,1fr);border:1.5px solid var(--ink);margin-top:36px}
.proof .cell{padding:22px 20px;border-left:1px solid var(--line)}
.proof .cell:first-child{border-left:none}
.proof .num{font-family:"IBM Plex Mono",monospace;font-size:30px;font-weight:600;color:var(--pine);letter-spacing:-.02em}
.proof .lbl{margin-top:8px;font-size:14.5px;line-height:1.4;color:var(--muted)}

/* typeset index rows (case studies / lists) */
.row{display:grid;grid-template-columns:60px 1fr auto;gap:22px;align-items:baseline;padding:24px 0;border-bottom:1px solid var(--line)}
.row:first-of-type{border-top:1px solid var(--line)}
.row .no{font-family:"IBM Plex Mono",monospace;font-size:13px;font-weight:600;color:var(--pine)}
.row h3{font-size:21px;font-weight:500;letter-spacing:-.01em;line-height:1.25}
.row .sub{margin-top:6px;font-size:15.5px;line-height:1.5;color:var(--muted);max-width:64ch}
.row .spec{font-family:"IBM Plex Mono",monospace;font-size:12.5px;text-align:right;color:var(--muted);white-space:nowrap}
.row.link{transition:.16s}
.row.link:hover h3{color:var(--pine)}
.row.link:hover .spec{color:var(--pine)}

/* ruled columns (services / what-we-do) */
.cols{display:grid;grid-template-columns:repeat(2,1fr);margin-top:34px}
.col{padding:26px 26px;border-left:1px solid var(--line);border-top:1px solid var(--line)}
.col:nth-child(-n+2){border-top:none}
.col:nth-child(odd){padding-left:0;border-left:none}
.col .ltr{font-family:"IBM Plex Mono",monospace;font-size:13px;font-weight:600;color:var(--pine)}
.col h3{font-size:22px;font-weight:600;margin:12px 0 10px;letter-spacing:-.01em}
.col p{font-size:16px;line-height:1.55;color:var(--muted)}
.col .what{margin-top:14px;list-style:none}
.col .what li{font-size:15px;line-height:1.5;padding-left:18px;position:relative;margin-top:6px}
.col .what li:before{content:"\2192";position:absolute;left:0;color:var(--pine);font-family:"IBM Plex Mono",monospace}
.col .more{margin-top:16px;display:inline-block;font-family:"IBM Plex Mono",monospace;font-size:12.5px;font-weight:600;letter-spacing:.04em;color:var(--pine);border-bottom:1px solid var(--pine);padding-bottom:1px}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:9px;font-family:"IBM Plex Mono",monospace;font-size:13.5px;font-weight:600;
  letter-spacing:.03em;padding:13px 22px;border:1.5px solid var(--ink);transition:.18s;cursor:pointer}
.btn-fill{background:var(--ink);color:var(--paper)}
.btn-fill:hover{background:var(--pine);border-color:var(--pine)}
.btn-ghost{color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}

/* contact channels */
.channels{display:grid;grid-template-columns:repeat(3,1fr);margin-top:34px;border:1.5px solid var(--ink)}
.channel{padding:26px 22px;border-left:1px solid var(--line)}
.channel:first-child{border-left:none}
.channel .f{font-family:"IBM Plex Mono",monospace;font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);display:block;margin-bottom:10px}
.channel .v{font-size:18px;font-weight:500;word-break:break-word}
.channel a.v:hover{color:var(--pine)}
.channel .note{margin-top:8px;font-size:14px;color:var(--muted)}

/* ink CTA block */
.cta{background:var(--ink);color:var(--paper);border:none}
.cta .wrap{padding:84px 36px;text-align:center}
.cta h2{max-width:20ch;margin:0 auto}
.cta em{color:var(--paper);text-decoration:underline;text-decoration-color:var(--pine);text-underline-offset:5px}
.cta p{margin:18px auto 28px;max-width:48ch;color:rgba(238,240,238,.62)}
.cta .btn-fill{background:var(--paper);color:var(--ink);border-color:var(--paper)}
.cta .btn-fill:hover{background:var(--pine);color:var(--paper);border-color:var(--pine)}

/* title-block footer */
footer{padding:36px 0 56px}
.titleblock{border:1.5px solid var(--ink);display:grid;grid-template-columns:2fr 1fr 1fr}
.tb{padding:16px 18px;border-left:1px solid var(--line)}
.tb:first-child{border-left:none}
.tb .f{font-family:"IBM Plex Mono",monospace;font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);display:block;margin-bottom:6px}
.tb .v{font-size:15px;font-weight:500}
.tb .v a:hover{color:var(--pine)}
.footnote{margin-top:18px;font-family:"IBM Plex Mono",monospace;font-size:11.5px;letter-spacing:.04em;color:var(--muted);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

@media(max-width:820px){
  .proof{grid-template-columns:repeat(2,1fr)}
  .proof .cell:nth-child(3){border-left:none}
  .proof .cell:nth-child(n+3){border-top:1px solid var(--line)}
}
@media(max-width:760px){
  .wrap{padding:0 22px}
  .masthead{align-items:flex-start}
  nav.top{gap:18px;flex-wrap:wrap}
  .cols{grid-template-columns:1fr}
  .col{border-left:none;padding:22px 0;border-top:1px solid var(--line)}
  .col:nth-child(2){border-top:1px solid var(--line)}
  .col:first-child{border-top:none}
  .channels{grid-template-columns:1fr}
  .channel{border-left:none;border-top:1px solid var(--line)}
  .channel:first-child{border-top:none}
  .row{grid-template-columns:40px 1fr;gap:14px}
  .row .spec{grid-column:2;text-align:left;margin-top:10px}
  .titleblock{grid-template-columns:1fr}
  .tb{border-left:none;border-top:1px solid var(--line)}
  .tb:first-child{border-top:none}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none !important}}