:root{
  --ink:#0E1620;
  --ink-2:#16212D;
  --text:#1B2631;
  --muted:#5A6772;
  --line:#E2E7EC;
  --mist:#F4F6F8;
  --white:#FFFFFF;
  --accent:#2B7CE9;
  --accent-dark:#1F63C4;
  --on-dark:#C3CDD6;
  --max:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
body{margin:0;font-family:"Manrope",system-ui,-apple-system,"Segoe UI",sans-serif;font-size:1.0625rem;line-height:1.65;color:var(--text);background:var(--white);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--accent)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 32px}
h1,h2,h3{color:var(--ink);margin:0;letter-spacing:-0.02em;line-height:1.12}
h1{font-size:clamp(2.4rem,5vw,3.9rem);font-weight:800}
h2{font-size:clamp(1.9rem,3.2vw,2.6rem);font-weight:800}
h3{font-size:1.18rem;font-weight:700;letter-spacing:-0.01em}
p{margin:0 0 1em;max-width:66ch}
.lead{font-size:1.2rem;color:var(--muted);line-height:1.6}
.dark{background:var(--ink);color:var(--on-dark)}
.dark h1,.dark h2,.dark h3{color:var(--white)}
.dark .lead{color:var(--on-dark)}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 24px;border-radius:6px;font-weight:700;font-size:.98rem;text-decoration:none;border:1.5px solid transparent;transition:background .15s,border-color .15s,color .15s}
.btn-primary{background:var(--accent);color:var(--white)}
.btn-primary:hover{background:var(--accent-dark)}
.btn-outline{border-color:rgba(255,255,255,.45);color:var(--white)}
.btn-outline:hover{border-color:var(--white);background:rgba(255,255,255,.06)}
.btn-ink{background:var(--ink);color:var(--white)}
.btn-ink:hover{background:var(--ink-2)}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}

/* header */
.site-header{position:absolute;top:0;left:0;right:0;z-index:10}
.site-header.solid{position:static;background:var(--ink)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:88px;gap:24px}
.brand img{height:38px;width:auto}
.nav{display:flex;align-items:center;gap:32px}
.nav a{color:var(--white);text-decoration:none;font-weight:600;font-size:.95rem;opacity:.82}
.nav a:hover{opacity:1}
.nav .btn{opacity:1;padding:10px 18px}
.menu-toggle{display:none;background:none;border:1.5px solid rgba(255,255,255,.4);color:#fff;border-radius:6px;padding:8px 12px;font:inherit;font-weight:700;font-size:.9rem;cursor:pointer}
@media (max-width:900px){
  .menu-toggle{display:block}
  .nav{display:none;position:absolute;top:80px;left:16px;right:16px;flex-direction:column;align-items:stretch;gap:0;background:var(--ink-2);border-radius:8px;padding:8px;box-shadow:0 20px 40px rgba(0,0,0,.35)}
  .nav.open{display:flex}
  .nav a{padding:14px 16px;opacity:1}
  .nav .btn{justify-content:center;margin-top:6px}
}

/* hero */
.hero{position:relative;min-height:min(92vh,860px);display:flex;flex-direction:column;justify-content:flex-end;background:var(--ink) url("assets/hero-datacentre.jpg") center/cover no-repeat;color:var(--on-dark)}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(9,14,21,.94) 0%,rgba(9,14,21,.78) 45%,rgba(9,14,21,.25) 100%),linear-gradient(0deg,rgba(9,14,21,.9) 0%,rgba(9,14,21,0) 40%)}
.hero > *{position:relative;width:100%}
.hero-body{padding-top:150px;padding-bottom:72px}
.pb-hero h1{color:var(--white)}
.hero h1{color:var(--white);max-width:16ch}
.hero .lead{color:var(--on-dark);max-width:54ch;margin-top:24px}
.proof{border-top:1px solid rgba(255,255,255,.14)}
.proof ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr)}
.proof li{padding:24px 24px 26px 0;font-size:.92rem;line-height:1.45}
.proof li + li{padding-left:24px;border-left:1px solid rgba(255,255,255,.14)}
.proof strong{display:block;color:var(--white);font-size:1.12rem;font-weight:700;margin-bottom:2px}
@media (max-width:860px){.proof ul{grid-template-columns:1fr 1fr}.proof li:nth-child(3){padding-left:0;border-left:0}.proof li:nth-child(n+3){border-top:1px solid rgba(255,255,255,.14)}}

/* sections */
.section{padding:112px 0}
.section.mist{background:var(--mist)}
.kicker{display:block;color:var(--accent);font-weight:700;font-size:.95rem;margin-bottom:14px}
.dark .kicker{color:#6FAEFF}
.split{display:grid;grid-template-columns:5fr 7fr;gap:80px;align-items:start}
.split .lead{margin-top:0}
@media (max-width:900px){.split{grid-template-columns:1fr;gap:28px}.section{padding:80px 0}}
.head{max-width:720px;margin-bottom:56px}
.head p{margin-top:18px}

/* roles */
.roles{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;padding:0;list-style:none}
.roles li{border:1px solid var(--line);border-radius:999px;padding:7px 16px;font-size:.92rem;font-weight:600;color:var(--ink);background:var(--white)}

/* services */
.services{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:10px;overflow:hidden}
.service{background:var(--white);padding:36px 32px 32px}
.service svg{width:34px;height:34px;stroke:var(--accent);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;margin-bottom:22px}
.service h3{margin-bottom:10px}
.service p{color:var(--muted);font-size:.98rem;margin:0}
@media (max-width:960px){.services{grid-template-columns:1fr 1fr}}
@media (max-width:620px){.services{grid-template-columns:1fr}}

/* work band */
.work{position:relative;background:var(--ink) url("assets/circuit.jpg") center/cover no-repeat}
.work::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(9,14,21,.92),rgba(9,14,21,.86))}
.work > *{position:relative}
.cases{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.case{background:rgba(22,33,45,.78);border:1px solid rgba(255,255,255,.1);border-radius:10px;padding:34px 32px;backdrop-filter:blur(4px)}
.case .sector{font-size:.88rem;color:#8FA2B3;font-weight:600}
.case h3{margin:10px 0 12px;font-size:1.3rem}
.case p{margin:0;color:var(--on-dark);font-size:.98rem}
.case .result{display:flex;gap:12px;align-items:baseline;margin-top:22px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12)}
.case .result strong{color:var(--white);font-size:1.5rem;font-weight:800;letter-spacing:-0.02em;white-space:nowrap}
.case .result span{font-size:.92rem;color:#A9B6C2}
@media (max-width:820px){.cases{grid-template-columns:1fr}}

/* sectors */
.sectors{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line)}
.sectors li{list-style:none;padding:22px 0;border-bottom:1px solid var(--line);font-weight:700;color:var(--ink);font-size:1.05rem}
.sectors li span{display:block;font-weight:500;color:var(--muted);font-size:.93rem}
.sectors{padding:0;margin:0;column-gap:40px}
@media (max-width:820px){.sectors{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.sectors{grid-template-columns:1fr}}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;counter-reset:s;padding:0;margin:0;list-style:none}
.steps li{border-top:2px solid var(--ink);padding-top:22px}
.steps .num{display:inline-flex;width:34px;height:34px;border-radius:50%;background:var(--ink);color:#fff;align-items:center;justify-content:center;font-weight:800;font-size:.9rem;margin-bottom:16px}
.steps h3{margin-bottom:8px}
.steps p{color:var(--muted);font-size:.97rem;margin:0}
@media (max-width:900px){.steps{grid-template-columns:1fr 1fr;row-gap:40px}}
@media (max-width:540px){.steps{grid-template-columns:1fr}}

/* about */
.about{display:grid;grid-template-columns:5fr 7fr;gap:80px;align-items:center}
.portrait{aspect-ratio:4/5;border-radius:12px;background:var(--ink) center top/cover no-repeat;display:flex;align-items:flex-end;padding:28px;position:relative;overflow:hidden}
.portrait::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(9,14,21,.82),rgba(9,14,21,0) 32%)}
.portrait .cap{position:relative;z-index:1;color:#fff}
.portrait .cap strong{display:block;font-size:1.3rem}
.portrait .cap span{color:var(--on-dark);font-size:.95rem}
.creds{list-style:none;padding:0;margin:30px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:0 32px}
.creds li{padding:16px 0;border-top:1px solid var(--line)}
.creds strong{display:block;color:var(--ink);font-weight:700;font-size:.98rem}
.creds span{color:var(--muted);font-size:.9rem}
@media (max-width:900px){.about{grid-template-columns:1fr;gap:40px}.portrait{max-width:380px}}
@media (max-width:540px){.creds{grid-template-columns:1fr}}

/* contact */
.cta{position:relative;background:var(--ink) url("assets/streaks.jpg") center/cover no-repeat}
.cta::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(9,14,21,.95) 0%,rgba(9,14,21,.75) 60%,rgba(9,14,21,.55) 100%)}
.cta > *{position:relative}
.cta .split{align-items:end}
.contact-list{margin:0}
.contact-list dt{color:#8FA2B3;font-size:.9rem;margin-top:20px}
.contact-list dt:first-child{margin-top:0}
.contact-list dd{margin:4px 0 0;font-size:1.3rem;font-weight:700}
.contact-list a{color:var(--white);text-decoration:none;border-bottom:2px solid var(--accent)}
.contact-list a:hover{border-color:var(--white)}

/* footer */
.site-footer{background:#0A1018;color:#8796A4;font-size:.9rem;padding:56px 0 36px}
.foot-top{display:flex;justify-content:space-between;align-items:flex-start;gap:40px;flex-wrap:wrap;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.08)}
.foot-top img{height:34px;width:auto}
.foot-links{display:flex;gap:56px;flex-wrap:wrap}
.foot-links h4{color:#fff;font-size:.92rem;margin:0 0 12px;font-weight:700}
.foot-links ul{list-style:none;padding:0;margin:0}
.foot-links li{margin:6px 0}
.foot-links a{color:#A9B6C2;text-decoration:none}
.foot-links a:hover{color:#fff}
.legal{padding-top:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
.legal p{margin:0;max-width:none}

/* playbook page */
.pb-hero{position:relative;background:var(--ink) url("assets/network.jpg") center/cover;color:var(--on-dark)}
.pb-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(9,14,21,.96) 30%,rgba(9,14,21,.7))}
.pb-hero > *{position:relative}
.pb-grid{display:grid;grid-template-columns:7fr 4fr;gap:80px;align-items:center;padding:96px 0 104px}
.pb-hero .lead{color:var(--on-dark);margin-top:22px}
.pb-meta{margin-top:22px;font-size:.92rem;color:#8FA2B3}
.book{aspect-ratio:210/297;background:#fff;border-radius:4px;padding:34px 30px;display:flex;flex-direction:column;justify-content:space-between;box-shadow:0 30px 60px rgba(0,0,0,.45),0 0 0 1px rgba(255,255,255,.08);max-width:340px;justify-self:end;width:100%}
.book img{width:44px}
.book .t{font-size:2rem;font-weight:800;color:var(--ink);line-height:1.05;letter-spacing:-0.02em;margin-top:26px}
.book .s{color:var(--muted);font-size:.95rem;margin-top:10px}
.book .f{display:flex;justify-content:space-between;font-size:.82rem;color:var(--muted);border-top:1px solid var(--line);padding-top:12px}
.book .bar{height:6px;background:linear-gradient(90deg,var(--ink) 0 60%,var(--accent) 60% 100%);border-radius:3px;margin-top:22px}
@media (max-width:900px){.pb-grid{grid-template-columns:1fr;gap:48px}.book{justify-self:start;max-width:260px}}
.toc{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;column-gap:56px}
.toc li{display:grid;grid-template-columns:44px 1fr;padding:20px 0;border-top:1px solid var(--line)}
.toc .n{font-weight:800;color:var(--accent)}
.toc strong{display:block;color:var(--ink)}
.toc span.d{color:var(--muted);font-size:.95rem}
@media (max-width:820px){.toc{grid-template-columns:1fr}}

/* self-check */
.check{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:36px;box-shadow:0 1px 2px rgba(14,22,32,.04)}
.check-row{display:grid;grid-template-columns:1fr auto;align-items:center;gap:16px;padding:12px 0;border-top:1px solid var(--line);margin:0;border-left:0;border-right:0;border-bottom:0;min-width:0}
.check-row legend{float:left;padding:0;font-weight:600;color:var(--ink)}
.seg{display:inline-flex;justify-self:start;border:1px solid var(--line);border-radius:6px;overflow:hidden}
.seg label{position:relative;cursor:pointer}
.seg input{position:absolute;inset:0;opacity:0;margin:0;cursor:pointer}
.seg span{display:block;padding:8px 14px;font-size:.88rem;font-weight:600;color:var(--muted);border-left:1px solid var(--line);white-space:nowrap}
.seg label:first-child span{border-left:0}
.seg input:focus-visible + span{outline:2px solid var(--accent);outline-offset:-2px}
.seg input[value=good]:checked + span{background:#1F8A55;color:#fff}
.seg input[value=attention]:checked + span{background:#C98A12;color:#fff}
.seg input[value=urgent]:checked + span{background:#C2402F;color:#fff}
.check-result{margin-top:20px;padding:18px 20px;background:var(--mist);border-radius:8px;min-height:3.4em}
.check-result p{margin:0}
@media (max-width:640px){.check{padding:24px}.check-row{grid-template-columns:1fr}.seg span{padding:8px 10px}}

/* playbook landing additions */
.signs{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:0 40px}
.signs li{padding:18px 0 18px 30px;border-top:1px solid var(--line);position:relative;color:var(--ink);font-weight:600}
.signs li::before{content:"";position:absolute;left:0;top:26px;width:12px;height:12px;border-radius:50%;background:#C98A12}
.signs li span{display:block;font-weight:500;color:var(--muted);font-size:.95rem}
@media (max-width:640px){.signs{grid-template-columns:1fr}}
.method{position:relative;background:var(--ink) url("assets/circuit.jpg") center/cover no-repeat}
.method::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(9,14,21,.93),rgba(9,14,21,.88))}
.method > *{position:relative}
.method .steps li{border-top-color:rgba(255,255,255,.5)}
.method .steps .num{background:var(--accent)}
.method .steps p{color:var(--on-dark)}
.areas-wrap{margin-top:72px;display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.areas{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.areas li{background:rgba(22,33,45,.8);border:1px solid rgba(255,255,255,.1);border-radius:8px;padding:18px 16px;color:#fff;font-weight:600;font-size:.95rem;line-height:1.35;display:flex;flex-direction:column;gap:12px}
.areas i{display:block;width:100%;height:4px;border-radius:2px}
.legend{display:flex;gap:18px;flex-wrap:wrap;margin-top:18px;font-size:.9rem}
.legend span{display:inline-flex;align-items:center;gap:8px}
.legend i{width:10px;height:10px;border-radius:50%;display:inline-block}
@media (max-width:960px){.areas-wrap{grid-template-columns:1fr;gap:28px}.areas{grid-template-columns:1fr 1fr}}
.figs{display:grid;grid-template-columns:repeat(3,1fr);border-top:2px solid var(--ink)}
.figs div{padding:28px 28px 0 0}
.figs div + div{padding-left:28px;border-left:1px solid var(--line)}
.figs strong{display:block;font-size:clamp(2rem,3.4vw,2.7rem);font-weight:800;color:var(--ink);letter-spacing:-0.03em;line-height:1.05}
.figs p{margin:12px 0 4px;color:var(--ink);font-weight:600}
.figs span{color:var(--muted);font-size:.92rem}
@media (max-width:820px){.figs{grid-template-columns:1fr}.figs div+div{padding-left:0;border-left:0;border-top:1px solid var(--line);margin-top:28px}}
.author{display:grid;grid-template-columns:200px 1fr;gap:48px;align-items:center}
.author img{width:200px;height:200px;border-radius:50%;object-fit:cover}
@media (max-width:640px){.author{grid-template-columns:1fr;gap:24px}.author img{width:140px;height:140px}}

.cover-img{justify-self:end;max-width:340px;width:100%;display:block;border-radius:3px;box-shadow:0 30px 60px rgba(0,0,0,.5),0 0 0 1px rgba(255,255,255,.08);transition:transform .2s}
.cover-img:hover{transform:translateY(-4px)}
.cover-img img{border-radius:3px;width:100%;height:auto}
@media (max-width:900px){.cover-img{justify-self:start;max-width:260px}}