:root{
  --navy:#102A43; --navy-2:#1B3A5C; --teal:#0B7285; --amber:#C48A21;
  --ink:#14212E; --mute:#5A6B7C; --line:#D6DFE7; --bg:#FFFFFF; --wash:#F4F7F9;
  --max:1160px; --gut:clamp(1.25rem,4vw,2.5rem);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:"IBM Plex Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--teal);text-decoration-thickness:1px;text-underline-offset:3px}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:3px solid var(--amber);outline-offset:2px}
.wrap{max-width:var(--max);margin-inline:auto;padding-inline:var(--gut)}
.skip{position:absolute;left:-9999px}
.skip:focus{left:1rem;top:1rem;z-index:99;background:var(--navy);color:#fff;padding:.6rem 1rem}

h1,h2,h3,h4{font-family:"IBM Plex Sans Condensed","IBM Plex Sans",sans-serif;
  line-height:1.12;letter-spacing:-.015em;margin:0 0 .6em;font-weight:600;color:var(--navy)}
h1{font-size:clamp(2.1rem,5.2vw,3.5rem)}
h2{font-size:clamp(1.6rem,3.4vw,2.3rem);margin-top:0}
h3{font-size:1.2rem}
p{margin:0 0 1.1em;max-width:68ch}
.lede{font-size:clamp(1.1rem,2vw,1.3rem);color:var(--navy-2);line-height:1.55}

/* datasheet label — the signature device */
.spec{font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:.72rem;
  letter-spacing:.14em;text-transform:uppercase;color:var(--teal);font-weight:500}
.spec--amber{color:var(--amber)}
.spec-rule{display:flex;align-items:center;gap:1rem;margin-bottom:1.75rem}
.spec-rule::after{content:"";flex:1;height:1px;background:var(--line)}

/* header */
.site-head{border-bottom:1px solid var(--line);position:sticky;top:0;background:rgba(255,255,255,.96);
  backdrop-filter:saturate(1.4) blur(8px);z-index:40}
.head-in{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding-block:.9rem}
.brand{display:flex;flex-direction:column;text-decoration:none;line-height:1.05}
.brand b{font-family:"IBM Plex Sans Condensed",sans-serif;font-size:1.22rem;color:var(--navy);
  letter-spacing:-.01em;font-weight:600}
.brand span{font-family:"IBM Plex Mono",monospace;font-size:.6rem;letter-spacing:.18em;
  text-transform:uppercase;color:var(--mute);margin-top:.2rem}
.nav{display:flex;gap:1.35rem;align-items:center}
.nav a{color:var(--navy);text-decoration:none;font-size:.93rem;font-weight:500}
.nav a:hover{color:var(--teal)}
.nav a[aria-current="page"]{color:var(--teal);box-shadow:inset 0 -2px 0 var(--amber)}
.nav-btn{display:none;background:none;border:1px solid var(--line);border-radius:2px;
  padding:.5rem .7rem;font:inherit;font-size:.85rem;color:var(--navy);cursor:pointer}
@media (max-width:900px){
  .nav{position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:0;padding:.5rem var(--gut) 1rem;display:none}
  .nav.open{display:flex}
  .nav a{padding:.7rem 0;border-bottom:1px solid var(--wash)}
  .nav-btn{display:block}
}

/* buttons */
.btn{display:inline-block;padding:.85rem 1.5rem;border-radius:2px;text-decoration:none;
  font-weight:600;font-size:.95rem;border:1.5px solid transparent;transition:.16s}
.btn-primary{background:var(--navy);color:#fff}
.btn-primary:hover{background:var(--teal)}
.btn-ghost{border-color:var(--navy);color:var(--navy)}
.btn-ghost:hover{background:var(--navy);color:#fff}
.btn-row{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1.6rem}

/* hero — spec-sheet framing */
.hero{background:var(--navy);color:#E8EFF5;padding-block:clamp(3.5rem,8vw,6rem);position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(var(--navy-2) 1px,transparent 1px),linear-gradient(90deg,var(--navy-2) 1px,transparent 1px);
  background-size:56px 56px;opacity:.4}
.hero .wrap{position:relative;z-index:1}
.hero h1{color:#fff;max-width:19ch}
.hero .lede{color:#B9CBDA;max-width:56ch}
.hero .spec{color:var(--amber)}
.hero-meta{display:flex;flex-wrap:wrap;gap:1.6rem 2.6rem;margin-top:2.6rem;
  padding-top:1.6rem;border-top:1px solid var(--navy-2)}
.hero-meta div{min-width:120px}
.hero-meta dt{font-family:"IBM Plex Mono",monospace;font-size:.66rem;letter-spacing:.14em;
  text-transform:uppercase;color:#7E97AC;margin-bottom:.3rem}
.hero-meta dd{margin:0;font-size:.95rem;color:#E8EFF5;font-weight:500}

/* capability strip */
.strip{background:var(--wash);border-bottom:1px solid var(--line);padding-block:1rem}
.strip ul{display:flex;flex-wrap:wrap;gap:.5rem 1.4rem;list-style:none;margin:0;padding:0}
.strip li{font-family:"IBM Plex Mono",monospace;font-size:.72rem;letter-spacing:.06em;
  text-transform:uppercase;color:var(--navy-2)}

section{padding-block:clamp(3rem,6vw,4.75rem)}
section.tint{background:var(--wash)}

/* cards */
.grid{display:grid;gap:1.5rem}
.grid-2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(275px,1fr))}
.card{background:#fff;border:1px solid var(--line);border-top:3px solid var(--teal);
  padding:1.5rem;border-radius:2px;display:flex;flex-direction:column}
.card h3{margin-bottom:.5rem}
.card p{font-size:.94rem;color:var(--mute);margin-bottom:1rem;flex:1}
.card a{font-weight:600;font-size:.9rem;text-decoration:none}
.card a::after{content:" →"}
.card a:hover{text-decoration:underline}

/* metric plates */
.metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:1px;
  background:var(--line);border:1px solid var(--line)}
.metric{background:#fff;padding:1.4rem}
.metric b{display:block;font-family:"IBM Plex Sans Condensed",sans-serif;font-size:2.2rem;
  color:var(--teal);line-height:1;margin-bottom:.35rem;font-weight:600}
.metric span{display:block;font-size:.92rem;color:var(--navy);font-weight:500;margin-bottom:.4rem}
.metric small{color:var(--mute);font-size:.8rem;line-height:1.45;display:block}

/* method */
.method{border-top:1px solid var(--line)}
.method-row{display:grid;grid-template-columns:56px 1fr 1fr;gap:1.5rem;
  padding:1.4rem 0;border-bottom:1px solid var(--line);align-items:start}
.method-row b{font-family:"IBM Plex Sans Condensed",sans-serif;font-size:2rem;color:var(--amber);line-height:1}
.method-row h3{margin-bottom:.3rem}
.method-row p{font-size:.94rem;margin:0;color:var(--mute)}
.method-row .out{font-family:"IBM Plex Mono",monospace;font-size:.78rem;color:var(--navy-2);line-height:1.5}
@media (max-width:720px){.method-row{grid-template-columns:44px 1fr}.method-row .out{grid-column:2}}

/* lists */
.ticks{list-style:none;padding:0;margin:0 0 1.5rem;display:grid;gap:.55rem}
.ticks li{padding-left:1.5rem;position:relative;font-size:.95rem}
.ticks li::before{content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;
  border-left:2px solid var(--teal);border-bottom:2px solid var(--teal);transform:rotate(-45deg)}
.cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem 3rem}

/* table */
.tbl{width:100%;border-collapse:collapse;font-size:.93rem}
.tbl th,.tbl td{text-align:left;padding:.85rem 1rem;border-bottom:1px solid var(--line);vertical-align:top}
.tbl th{font-family:"IBM Plex Mono",monospace;font-size:.7rem;letter-spacing:.1em;
  text-transform:uppercase;color:var(--teal);font-weight:500;background:var(--wash)}
.tbl-scroll{overflow-x:auto}

/* callout */
.note{border-left:3px solid var(--amber);background:var(--wash);padding:1rem 1.25rem;
  font-size:.9rem;color:var(--navy-2);margin:1.5rem 0}
.note p{margin:0;max-width:none}

/* faq */
details{border-bottom:1px solid var(--line);padding:1rem 0}
summary{cursor:pointer;font-weight:600;color:var(--navy);font-size:1.02rem;list-style:none}
summary::-webkit-details-marker{display:none}
summary::before{content:"+";color:var(--amber);font-weight:600;margin-right:.65rem}
details[open] summary::before{content:"−"}
details p{margin:.8rem 0 0;font-size:.95rem;color:var(--mute)}

/* breadcrumbs */
.crumbs{font-size:.8rem;color:var(--mute);padding-top:1.25rem}
.crumbs a{color:var(--mute)}
.crumbs span{margin-inline:.4rem}

/* cta band */
.band{background:var(--navy);color:#E8EFF5;padding-block:clamp(2.75rem,5vw,4rem)}
.band h2{color:#fff}
.band p{color:#B9CBDA}
.band .btn-primary{background:var(--amber);color:var(--navy)}
.band .btn-primary:hover{background:#fff}

/* form */
form .field{margin-bottom:1.1rem}
label{display:block;font-size:.87rem;font-weight:600;color:var(--navy);margin-bottom:.35rem}
input,select,textarea{width:100%;padding:.7rem .8rem;border:1px solid var(--line);border-radius:2px;
  font:inherit;font-size:.95rem;background:#fff;color:var(--ink)}
textarea{min-height:130px;resize:vertical}
.check{display:flex;gap:.65rem;align-items:flex-start;font-size:.87rem;font-weight:400;color:var(--mute)}
.check input{width:auto;margin-top:.25rem}

/* footer */
.site-foot{background:var(--navy);color:#9DB3C6;padding-block:3rem 2rem;font-size:.88rem}
.site-foot h4{color:#fff;font-size:.72rem;font-family:"IBM Plex Mono",monospace;
  letter-spacing:.14em;text-transform:uppercase;margin-bottom:.9rem}
.site-foot a{color:#C5D5E2;text-decoration:none}
.site-foot a:hover{color:#fff;text-decoration:underline}
.foot-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:2rem}
.foot-grid ul{list-style:none;padding:0;margin:0;display:grid;gap:.5rem}
.legal{border-top:1px solid var(--navy-2);margin-top:2.5rem;padding-top:1.5rem;
  font-size:.78rem;line-height:1.6;color:#7E97AC}
.legal p{max-width:none}

/* inner page header — carries the hero's authority onto sub-pages */
.page-head{background:var(--navy);color:#E8EFF5;position:relative;overflow:hidden;
  padding-block:clamp(2.5rem,5.5vw,4.25rem)}
.page-head::after{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(var(--navy-2) 1px,transparent 1px),linear-gradient(90deg,var(--navy-2) 1px,transparent 1px);
  background-size:56px 56px;opacity:.35}
.page-head .wrap{position:relative;z-index:1}
.page-head h1{color:#fff}
.page-head .lede{color:#B9CBDA}
.page-head .spec{color:var(--amber)}
.page-head .spec-rule::after{background:var(--navy-2)}
.page-head p{max-width:60ch}
.page-head .note{background:rgba(255,255,255,.06);color:#C5D5E2;border-left-color:var(--amber)}
.page-head .metrics{margin-top:2rem;background:var(--navy-2);border-color:var(--navy-2)}
.page-head .metric{background:var(--navy)}
.page-head .metric span{color:#E8EFF5}
.page-head .metric small{color:#8FA7BB}
.page-head a{color:#9FD3DE}
/* crumbs sit on the navy band when it follows immediately */
.crumbs+main .page-head{margin-top:0}

/* imagery */
.card--img{padding:0;overflow:hidden}
.card--img img{width:100%;aspect-ratio:900/616;object-fit:cover;border-bottom:1px solid var(--line)}
.card-body{padding:1.4rem;display:flex;flex-direction:column;flex:1}
.card-body h3{margin-bottom:.5rem}
.figure{margin:0 0 -1px;position:relative}
.figure img{width:100%;aspect-ratio:2.4/1;object-fit:cover;border-radius:2px}
.figure figcaption{font-family:"IBM Plex Mono",monospace;font-size:.68rem;letter-spacing:.05em;
  color:var(--mute);margin-top:.6rem;padding-bottom:1.5rem}
.hero-img{max-height:340px;overflow:hidden;border-bottom:3px solid var(--amber)}
.hero-img img{width:100%;aspect-ratio:3.2/1;object-fit:cover;display:block}

/* imagery */
figure{margin:0}
.card-img{padding:0;overflow:hidden}
.card-img>figure{margin:0;aspect-ratio:884/618;overflow:hidden;background:var(--wash)}
.card-img>figure img{width:100%;height:100%;object-fit:cover}
.card-body{padding:1.4rem 1.5rem 1.5rem;display:flex;flex-direction:column;flex:1}
.card-body h3{margin-bottom:.5rem}
.card-body p{font-size:.94rem;color:var(--mute);margin-bottom:1rem;flex:1}
.card-body a{font-weight:600;font-size:.9rem;text-decoration:none}
.card-body a::after{content:" →"}
.fig{margin:0;border:1px solid var(--line);border-radius:2px;overflow:hidden;background:var(--wash)}
.fig img{width:100%;height:auto;display:block}
.fig-wide{margin:2rem 0 0;max-height:340px}
.fig-wide img{object-fit:cover;max-height:340px}
.hero-img{aspect-ratio:1840/620;max-height:380px;overflow:hidden;background:var(--navy)}
.hero-img img{width:100%;height:100%;object-fit:cover;opacity:.92}
@media (max-width:700px){.hero-img{max-height:220px}.fig-wide{max-height:220px}.fig-wide img{max-height:220px}}

/* roadmap tables */
.roadmap{margin-top:1.5rem}
.roadmap h3{font-size:1.05rem;color:var(--navy);margin-bottom:.75rem}