/* Rackstack website styles */
:root{
  --ink:#0e1f3d;
  --deep:#0a1733;
  --deep-2:#12244a;
  --blue:#2557f6;
  --blue-d:#1b43c9;
  --cyan:#22d3ee;
  --amber:#ffb224;
  --green:#2ee59d;
  --bg:#f4f7fb;
  --surface:#ffffff;
  --line:#dbe3ef;
  --muted:#51607a;
  --head:'Bricolage Grotesque','Segoe UI',system-ui,-apple-system,sans-serif;
  --body:'IBM Plex Sans','Segoe UI',system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--body);color:var(--ink);background:var(--bg);line-height:1.65;font-size:1.0625rem;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
a{color:var(--blue);text-underline-offset:3px}
a:hover{color:var(--blue-d)}
:focus-visible{outline:3px solid var(--cyan);outline-offset:3px;border-radius:4px}
.wrap{width:min(1120px,100% - 2.5rem);margin-inline:auto}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:.6rem 1rem;z-index:100}
.skip:focus{left:1rem;top:1rem}

h1,h2,h3{font-family:var(--head);line-height:1.12;letter-spacing:-.02em;margin:0 0 .6em;font-weight:700}
h1{font-size:clamp(2.4rem,5.4vw,4rem);font-weight:800}
h2{font-size:clamp(1.8rem,3.4vw,2.6rem)}
h3{font-size:1.25rem;letter-spacing:-.01em}
p{margin:0 0 1em;max-width:68ch}
.lead{font-size:1.2rem;color:var(--muted);max-width:60ch}

/* Buttons */
.btn{display:inline-block;padding:.8rem 1.4rem;border-radius:999px;font-weight:600;font-family:var(--body);font-size:1rem;text-decoration:none;border:2px solid transparent;cursor:pointer;line-height:1.3}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-d);color:#fff}
.btn-light{background:#fff;color:var(--blue-d)}
.btn-light:hover{background:#eaf0ff;color:var(--blue-d)}
.btn-ghost{border-color:rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.08)}
.btn-row{display:flex;flex-wrap:wrap;gap:.9rem;margin-top:1.8rem}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(244,247,251,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:72px}
.brand{display:flex;align-items:center;gap:.65rem;text-decoration:none;color:var(--ink);font-family:var(--head);font-weight:800;font-size:1.45rem;letter-spacing:-.03em}
.brand:hover{color:var(--ink)}
.logo-mark{width:34px;height:34px}
.nav{display:flex;align-items:center;gap:.4rem}
.nav a{text-decoration:none;color:var(--ink);padding:.5rem .85rem;border-radius:8px;font-weight:500}
.nav a:hover{background:#e6edf8;color:var(--ink)}
.nav a[aria-current="page"]{color:var(--blue-d);font-weight:600;box-shadow:inset 0 -3px 0 var(--blue)}
.nav .btn{margin-left:.6rem;padding:.6rem 1.2rem;color:#fff}
.nav .btn:hover{background:var(--blue-d);color:#fff}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:10px;width:46px;height:46px;cursor:pointer;align-items:center;justify-content:center}
.bars,.bars::before,.bars::after{display:block;width:22px;height:2px;background:var(--ink);position:relative;content:""}
.bars::before{position:absolute;top:-7px}
.bars::after{position:absolute;top:7px}

/* Hero */
.hero{background:var(--deep);color:#fff;position:relative;overflow:hidden;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:46px 46px}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:3rem;align-items:center;padding-block:5rem 5.5rem}
.hero p{color:#c7d3ea}
.hero h1{color:#fff;margin-bottom:.5em}
.hero-art{justify-self:center;width:min(100%,400px)}

.page-hero{background:var(--deep);color:#fff;padding:4.2rem 0 3.6rem;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:46px 46px}
.page-hero h1{font-size:clamp(2.2rem,4.6vw,3.3rem);margin-bottom:.4em}
.page-hero p{color:#c7d3ea;font-size:1.2rem;margin:0}

/* Rack art */
.rack-frame{fill:#0f2147;stroke:#34508f;stroke-width:2}
.rack-unit{fill:#162c5c;stroke:#34508f;stroke-width:1.5}
.rack-port{fill:#0a1733;stroke:#34508f;stroke-width:1}
.rack-vent{stroke:#34508f;stroke-width:2;stroke-linecap:round}
.led{animation:blink 3.4s steps(1) infinite;animation-delay:var(--d,0s)}
@keyframes blink{0%{opacity:1}46%{opacity:1}50%{opacity:.25}54%{opacity:1}100%{opacity:1}}
.led-g{fill:var(--green)}
.led-a{fill:var(--amber)}
.led-c{fill:var(--cyan)}

/* Sections */
.sec{padding:5rem 0}
.sec-alt{background:#fff;border-block:1px solid var(--line)}
.sec-head{max-width:46rem;margin-bottom:2.6rem}
.sec-head p{color:var(--muted);font-size:1.1rem;margin:0}

/* Service rows */
.svc-list{display:grid}
.svc{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.4fr);gap:2rem;padding:1.7rem 0;border-top:1px solid var(--line)}
.svc:last-child{border-bottom:1px solid var(--line)}
.svc h3{margin:0;display:flex;align-items:flex-start;gap:.7rem}
.svc h3::before{content:"";flex:none;width:12px;height:12px;border-radius:50%;margin-top:.42em;background:var(--green);box-shadow:0 0 0 4px rgba(46,229,157,.2)}
.svc:nth-child(3n+2) h3::before{background:var(--amber);box-shadow:0 0 0 4px rgba(255,178,36,.22)}
.svc:nth-child(3n) h3::before{background:var(--cyan);box-shadow:0 0 0 4px rgba(34,211,238,.22)}
.svc p{margin:0;color:var(--muted)}

/* Process steps */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1.5rem;list-style:none;margin:0;padding:0;counter-reset:s}
.steps li{counter-increment:s;position:relative;padding-top:3.4rem}
.steps li::before{content:counter(s);position:absolute;top:0;left:0;width:2.6rem;height:2.6rem;border-radius:50%;background:var(--blue);color:#fff;display:grid;place-items:center;font-family:var(--head);font-weight:700;font-size:1.15rem}
.steps li::after{content:"";position:absolute;top:1.3rem;left:3.2rem;right:-.6rem;height:2px;background:var(--line)}
.steps li:last-child::after{display:none}
.steps h3{margin-bottom:.3em}
.steps p{color:var(--muted);margin:0;font-size:1rem}

/* Bands */
.band{background:var(--blue);color:#fff}
.band .wrap{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);gap:2.5rem;align-items:center;padding-block:4rem}
.band h2{color:#fff}
.band p{color:#e3eaff;margin:0}
.band .btn-row{margin:0;justify-content:flex-end}
.cta{background:var(--deep);color:#fff;text-align:left}
.cta .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:2rem;padding-block:4rem}
.cta h2{margin:0 0 .3em;color:#fff}
.cta p{margin:0;color:#c7d3ea}

/* Two-column text */
.cols{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:3rem}
.cols-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:2rem}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:1.8rem}
.panel h3{margin-bottom:.4em}
.panel p:last-child{margin-bottom:0}
.panel ul{margin:.6rem 0 0;padding-left:1.2rem;color:var(--muted)}
.panel li{margin-bottom:.35rem}
.tick{list-style:none;padding:0;margin:0}
.tick li{position:relative;padding-left:1.8rem;margin-bottom:.7rem}
.tick li::before{content:"";position:absolute;left:0;top:.55em;width:.9rem;height:.9rem;border-radius:50%;background:var(--green);box-shadow:0 0 0 4px rgba(46,229,157,.2)}

/* Career tracks */
.track{display:grid;grid-template-columns:5.5rem minmax(0,1fr);gap:1.5rem;padding:1.6rem 0;border-top:1px solid var(--line)}
.track:last-child{border-bottom:1px solid var(--line)}
.track-n{font-family:var(--head);font-weight:800;font-size:2.6rem;color:var(--blue);line-height:1}
.track h3{margin-bottom:.3em}
.track p{margin:0;color:var(--muted)}

/* Blog */
.posts{display:grid;gap:1.6rem;max-width:52rem}
.post{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:2rem}
.post-meta{display:flex;flex-wrap:wrap;gap:.6rem;align-items:center;margin-bottom:.9rem;font-size:.92rem;color:var(--muted)}
.tag{background:#e4ecff;color:var(--blue-d);border-radius:999px;padding:.15rem .7rem;font-weight:600;font-size:.85rem}
.post h2{font-size:1.7rem;margin-bottom:.4em}
.post details{margin-top:1rem}
.post summary{cursor:pointer;font-weight:600;color:var(--blue-d);list-style:none;display:inline-block;padding:.5rem 1.1rem;border:2px solid var(--blue);border-radius:999px}
.post summary::-webkit-details-marker{display:none}
.post summary:hover{background:#eaf0ff}
.post details[open] summary{margin-bottom:1.2rem}
.post-body h3{margin-top:1.6em}
.post-body ol,.post-body ul{padding-left:1.3rem;max-width:66ch}
.post-body li{margin-bottom:.5rem}
.mini-posts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.6rem}
.mini{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:1.6rem;display:flex;flex-direction:column}
.mini h3{font-size:1.15rem}
.mini p{color:var(--muted);font-size:1rem}
.mini a.more{margin-top:auto;font-weight:600}

/* News */
.news-list{display:grid;gap:0;max-width:52rem}
.news-item{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:1.5rem;align-items:center;padding:1.5rem 0;border-top:1px solid var(--line)}
.news-item:last-child{border-bottom:1px solid var(--line)}
.news-item h3{margin-bottom:.2em}
.news-item p{margin:0;color:var(--muted)}

/* Forms */
.form{display:grid;gap:1.1rem}
.field label{display:block;font-weight:600;margin-bottom:.35rem}
.field input,.field select,.field textarea{width:100%;font:inherit;color:var(--ink);background:#fff;border:1.5px solid #b9c6dc;border-radius:10px;padding:.75rem .9rem}
.field input:focus,.field select:focus,.field textarea:focus{outline:3px solid rgba(34,211,238,.55);border-color:var(--blue)}
.field textarea{min-height:150px;resize:vertical}
.note{font-size:.95rem;color:var(--muted)}

/* Footer */
.site-footer{background:var(--deep);color:#c7d3ea;padding:3.6rem 0 2rem}
.site-footer a{color:#e8efff}
.site-footer a:hover{color:#fff}
.foot{display:grid;grid-template-columns:minmax(0,1.4fr) repeat(2,minmax(0,.8fr));gap:2.5rem}
.foot .brand{color:#fff;margin-bottom:.8rem}
.foot h2{font-size:1rem;color:#fff;letter-spacing:0;margin-bottom:.8rem}
.foot ul{list-style:none;margin:0;padding:0}
.foot li{margin-bottom:.45rem}
.legal{border-top:1px solid rgba(255,255,255,.14);margin-top:2.4rem;padding-top:1.4rem;font-size:.9rem;color:#9fb0d0}
.legal p{max-width:none;margin:0 0 .4rem}

/* Responsive */
@media (max-width:980px){
  .hero .wrap{grid-template-columns:1fr;padding-block:3.5rem 4rem}
  .hero-art{width:min(100%,320px);justify-self:start}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:2.2rem}
  .steps li::after{display:none}
  .mini-posts{grid-template-columns:1fr}
  .cols-3{grid-template-columns:1fr}
  .band .wrap{grid-template-columns:1fr}
  .band .btn-row{justify-content:flex-start}
}
@media (max-width:860px){
  .nav-toggle{display:flex}
  .nav{display:none;position:absolute;left:0;right:0;top:72px;background:var(--bg);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:.8rem 1.25rem 1.2rem;gap:.2rem}
  .nav-open .nav{display:flex}
  .nav .btn{margin:.6rem 0 0;text-align:center}
  .nav a[aria-current="page"]{box-shadow:none;background:#e6edf8}
}
@media (max-width:720px){
  .sec{padding:3.6rem 0}
  .svc{grid-template-columns:1fr;gap:.6rem}
  .cols{grid-template-columns:1fr;gap:2rem}
  .foot{grid-template-columns:1fr}
  .news-item{grid-template-columns:1fr;gap:.8rem}
  .track{grid-template-columns:1fr;gap:.4rem}
  .post{padding:1.4rem}
}
@media (max-width:520px){
  .steps{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .led{animation:none}
}