:root{--bg:#0f1f3d;--bg2:#13284c;--card:#172f58;--card2:#1b3764;--ink:#eef3fa;--muted:#b4c2d9;--amber:#f5a524;--cyan:#4cc3e8;--line:#2a4573;--header-h:4rem}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:var(--header-h)}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Segoe UI",Inter,"Helvetica Neue",Arial,sans-serif;font-size:1.0625rem;line-height:1.6}
img{display:block;max-width:100%;height:auto}
a{color:var(--amber);text-underline-offset:.15em}
.wrap{max-width:72rem;margin:0 auto;padding:0 1.25rem}
.site-header{position:sticky;top:0;z-index:10;height:var(--header-h);background:rgba(15,31,61,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.site-header .wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:1rem}
.brand{font-weight:800;font-size:1.35rem;letter-spacing:.08em;color:var(--ink);text-decoration:none}
.brand sup{font-size:.55em;color:var(--amber)}
nav ul{list-style:none;margin:0;padding:0;display:flex;gap:.25rem;flex-wrap:wrap;justify-content:flex-end}
nav a{display:block;padding:.4rem .75rem;border-radius:999px;color:var(--ink);text-decoration:none;font-weight:600;font-size:.92rem}
nav a:hover,nav a:focus-visible{background:var(--card)}
nav a[aria-current="true"]{background:var(--amber);color:#0f1f3d}
.eyebrow{margin:0 0 .5rem;color:var(--amber);font-size:.8rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase}
h1,h2,h3,h4{line-height:1.15;margin:0}
h1{font-size:clamp(2.6rem,7vw,4.5rem);font-weight:800;letter-spacing:.02em}
h2{font-size:clamp(1.75rem,4vw,2.5rem);font-weight:800}
h3{font-size:1.1rem;font-weight:700}
p{margin:0}
.lede{font-size:1.2rem;color:var(--muted);max-width:44rem}
.rule{width:3.5rem;height:3px;background:var(--amber);border:0;margin:1.25rem 0}
section{padding:4.5rem 0}
section.alt{background:var(--bg2)}
.section-head{margin-bottom:2rem;max-width:48rem}
.section-head .lede{margin-top:.75rem}
.hero{padding:4.5rem 0 4rem}
.hero .wrap{display:grid;gap:2.5rem;align-items:center;grid-template-columns:1fr}
.hero .small{color:var(--muted);font-size:.95rem}
.logo-card{background:#fff;border-radius:1rem;padding:1rem;max-width:26rem}
.grid{display:grid;gap:1.25rem;grid-template-columns:repeat(auto-fit,minmax(15rem,1fr))}
.card{background:var(--card);border:1px solid var(--line);border-top:3px solid var(--amber);border-radius:.75rem;padding:1.25rem 1.4rem}
.card h3{margin-bottom:.45rem}
.card p,.card li{color:var(--muted)}
.card ul{margin:.5rem 0 0;padding-left:1.1rem}
.card .tag{display:inline-block;margin-bottom:.6rem;padding:.15rem .6rem;border-radius:999px;background:var(--card2);color:var(--cyan);font-size:.8rem;font-weight:700}
.step-no{display:inline-grid;place-items:center;width:2rem;height:2rem;border-radius:50%;background:var(--amber);color:#0f1f3d;font-weight:800;margin-bottom:.6rem}
.subhead{margin:3rem 0 1rem;font-size:1.4rem;font-weight:800}
.note{font-size:.95rem;color:var(--muted);border-left:3px solid var(--amber);padding-left:.85rem;margin-top:1rem}
.callout{margin-top:1.25rem;background:var(--card);border-left:4px solid var(--amber);border-radius:.5rem;padding:1rem 1.25rem;font-weight:600}
.timeline{list-style:none;margin:0;padding:0;display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(12rem,1fr))}
.timeline li{background:var(--card);border:1px solid var(--line);border-radius:.75rem;padding:1rem 1.2rem}
.timeline li b{display:block;color:var(--amber);font-size:.8rem;letter-spacing:.1em;text-transform:uppercase}
.chips{display:flex;flex-wrap:wrap;gap:.5rem;margin:.25rem 0 0;padding:0;list-style:none}
.chips li{padding:.3rem .8rem;border-radius:999px;background:var(--card2);border:1px solid var(--line);font-size:.92rem;font-weight:600}
.chips li span{color:var(--muted);font-weight:400}
.layers{display:grid;gap:.75rem}
.layer{display:grid;gap:.5rem 1.25rem;grid-template-columns:1fr;padding:1rem 1.25rem;background:var(--card);border:1px solid var(--line);border-radius:.75rem;align-items:center}
.layer.core{background:#0a1630;border-color:var(--amber)}
.layer .lbl{color:var(--amber);font-size:.8rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
.shots{display:grid;gap:1.25rem;grid-template-columns:repeat(auto-fit,minmax(12rem,1fr));align-items:start}
.shot{margin:0}
.shot img{width:100%;max-width:15rem;margin:0 auto;border-radius:1.25rem;border:1px solid var(--line);background:#000}
.shot figcaption{margin-top:.75rem;text-align:left;max-width:15rem;margin-inline:auto}
.shot h3{font-size:1rem;margin-bottom:.2rem}
.shot p{font-size:.95rem;color:var(--muted)}
.split{display:grid;gap:2rem;grid-template-columns:1fr;align-items:center}
.split .shot img{max-width:17rem}
.kv{display:grid;gap:.6rem}
.kv div{display:grid;gap:.15rem .9rem;grid-template-columns:1fr;padding:.8rem 1rem;background:var(--card);border:1px solid var(--line);border-radius:.6rem}
.kv dt{font-weight:800;color:var(--amber)}
.kv dd{margin:0;color:var(--muted)}
.flow{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:.5rem;align-items:center}
.flow li{background:#fff;color:#0f1f3d;font-weight:700;border-radius:.4rem;padding:.4rem .9rem;font-size:.95rem}
.flow li+li::before{content:"\2192";margin-right:.6rem;color:var(--amber);font-weight:800}
.flow li{display:inline-flex}
.contact-box{background:var(--card);border:1px dashed var(--amber);border-radius:.75rem;padding:1.25rem 1.4rem}
footer{padding:1.5rem 0 2.5rem;color:var(--muted);font-size:.92rem;border-top:1px solid var(--line)}
@media(min-width:52rem){.hero .wrap{grid-template-columns:1.2fr .8fr}.split{grid-template-columns:1fr 1fr}.layer{grid-template-columns:11rem 1fr}.kv div{grid-template-columns:11rem 1fr}}
@media(max-width:44rem){:root{--header-h:6.25rem}.site-header .wrap{flex-direction:column;justify-content:center;gap:.2rem}nav ul{justify-content:center}nav a{padding:.25rem .55rem;font-size:.82rem}section{padding:3rem 0}}

/* Relay integration: preserve the existing ROVER palette and typography. */
:focus-visible{outline:3px solid var(--cyan);outline-offset:4px}
.site-header{height:auto;min-height:4rem}
.site-header .wrap{min-height:4rem}
nav{min-width:0}
.hero-actions,.relay-actions{display:flex;flex-wrap:wrap;align-items:center;gap:.85rem;margin-top:1.5rem}
.button-link{display:inline-flex;align-items:center;justify-content:center;min-height:2.75rem;padding:.65rem 1.15rem;border-radius:.5rem;border:1px solid var(--amber);font-weight:700;text-decoration:none;background:var(--amber);color:var(--bg)}
.button-link:hover{background:#ffbf52;border-color:#ffbf52}
.button-link.secondary{background:transparent;color:var(--ink);border-color:var(--line)}
.button-link.secondary:hover{background:var(--card)}
.relay-section{background:linear-gradient(130deg,#13284c 0%,#10243d 100%)}
.relay-intro{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:2rem;align-items:start;margin-bottom:2rem}
.relay-intro .section-head{margin-bottom:0}
.relay-summary{margin:0;padding:1.25rem 1.4rem;background:#0b1b32;border:1px solid var(--line);border-radius:.75rem}
.relay-summary div+div{margin-top:1rem;padding-top:1rem;border-top:1px solid var(--line)}
.relay-summary dt{font-weight:800;color:var(--cyan);margin-bottom:.2rem}
.relay-summary dd{margin:0;color:var(--muted);font-size:.98rem}
.relay-integrations{grid-template-columns:repeat(3,minmax(0,1fr))}
.relay-integrations .card{border-top-color:var(--cyan)}
.relay-integrations .tag{letter-spacing:.04em}
.relay-steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1rem;list-style:none;margin:1rem 0 0;padding:0;counter-reset:relay-step}
.relay-steps li{padding:1.2rem;background:var(--card);border:1px solid var(--line);border-radius:.75rem;counter-increment:relay-step}
.relay-steps li::before{content:'0' counter(relay-step);display:block;font-size:.85rem;font-weight:800;color:var(--cyan);letter-spacing:.12em;margin-bottom:.55rem}
.relay-steps h4{font-size:1.05rem;margin-bottom:.45rem}
.relay-steps p{font-size:.95rem;color:var(--muted)}
.relay-gallery{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1.35rem;align-items:start;margin-top:1.5rem}
.relay-gallery .shot>a{display:block;width:100%;max-width:15rem;margin:0 auto;border-radius:1.25rem}
.relay-gallery .shot img{width:100%;max-width:15rem;transition:border-color .15s ease}
.relay-gallery .shot>a:hover img{border-color:var(--cyan)}
.relay-gallery .shot figcaption{max-width:15rem}
.relay-gallery .shot h4{font-size:1rem;line-height:1.25;margin-bottom:.35rem}
.relay-gallery .shot p{font-size:.92rem}
.relay-gallery .shot figcaption>a{display:inline-block;margin-top:.45rem;font-size:.9rem}
.relay-demo{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:2rem;margin-top:3rem;align-items:start}
.relay-demo figure{margin:0}
.relay-demo video{display:block;width:100%;height:auto;aspect-ratio:16/9;background:#07101f;border:1px solid var(--line);border-radius:.75rem;object-fit:contain}
.relay-demo figcaption{color:var(--muted);font-size:.92rem;margin-top:.6rem}
.relay-demo h3{font-size:1.5rem;margin-bottom:.8rem}
.relay-demo p+p{margin-top:.85rem}
.relay-demo .description{color:var(--muted)}
.relay-transcript{margin-top:1.3rem;border-top:1px solid var(--line);padding-top:1rem}
.relay-transcript summary{cursor:pointer;color:var(--amber);font-weight:700;padding:.3rem 0}
.relay-transcript p{color:var(--muted);font-size:.95rem;margin-top:.8rem}
@media(max-width:60rem){.relay-gallery,.relay-steps{grid-template-columns:repeat(2,minmax(0,1fr))}.relay-intro,.relay-integrations{grid-template-columns:1fr}}
@media(max-width:44rem){
 .site-header{min-height:6.25rem}
 .site-header .wrap{min-height:6.25rem;padding-block:.45rem}
 nav{width:100%;max-width:100%}
 nav ul{flex-wrap:nowrap;justify-content:flex-start;overflow-x:auto;padding:.1rem 0 .4rem;scrollbar-width:thin;scrollbar-color:var(--line) var(--bg)}
 nav a{white-space:nowrap}
 .relay-intro,.relay-demo,.relay-integrations{grid-template-columns:1fr}
 .relay-intro,.relay-demo{gap:1.4rem}
 .relay-summary{padding:1.1rem}
}
@media(max-width:29rem){.relay-gallery,.relay-steps{grid-template-columns:1fr}.relay-gallery{gap:2rem}.relay-gallery .shot>a,.relay-gallery .shot img,.relay-gallery .shot figcaption{max-width:17rem}}
@media(prefers-reduced-motion:reduce){.relay-gallery .shot img{transition:none}}