/* Grey Ferrite — site styles */
:root{
  --ink:#15181c; --graphite:#1f2328; --slate:#2c3138; --steel:#4a525b; --ferrite:#6b737c;
  --mist:#c4cad1; --fog:#e6e9ec; --paper:#f4f5f6; --white:#ffffff;
  --copper:#2b7276; --copper-2:#4a9a9e; --cool:#6f94a8; --serif:"IBM Plex Serif",Georgia,"Times New Roman",serif;
  --text:#1c2025; --muted:#5b636c; --line:#d8dde2;
  --sans:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --wrap:1180px; --r:6px; --shadow:0 10px 30px rgba(21,24,28,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--sans);color:var(--text);background:var(--paper);line-height:1.55;font-size:17px}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3,h4{line-height:1.15;margin:0 0 .5em;font-weight:600;letter-spacing:-.01em}
h1,h2,.serif{font-family:var(--serif);font-weight:500;letter-spacing:0}
h1{font-size:clamp(2.2rem,4.6vw,3.6rem)}
h2{font-size:clamp(1.6rem,3vw,2.3rem)}
h3{font-size:1.25rem}
p{margin:0 0 1em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
.mono{font-family:var(--mono)}
.small{font-size:.9rem}
.muted{color:var(--muted)}
.eyebrow{font-family:var(--mono);font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:var(--copper);margin-bottom:.9rem;display:block}
.skip{position:absolute;left:-999px;top:0;background:var(--copper);color:#fff;padding:.5rem 1rem;z-index:100}
.skip:focus{left:8px;top:8px}

/* header */
.site-header{background:var(--ink);color:var(--fog);position:sticky;top:0;z-index:50;border-bottom:1px solid rgba(255,255,255,.06)}
.bar{display:flex;align-items:center;justify-content:space-between;height:68px;gap:1rem}
.brand{display:flex;align-items:center;gap:.65rem;text-decoration:none;color:var(--fog)}
.mark{width:34px;height:34px;color:#d9dde2;background:#2a2f36;border-radius:7px;padding:3px}
.wordmark{font-weight:600;font-size:1.15rem;letter-spacing:.01em}
.wordmark span{color:var(--copper-2);font-weight:500}
.nav{display:flex;align-items:center;gap:1.4rem}
.nav a{text-decoration:none;color:var(--mist);font-size:.95rem;font-weight:500;padding:.3rem 0;border-bottom:2px solid transparent}
.nav a:hover{color:#fff}
.nav a[aria-current="page"]{color:#fff;border-bottom-color:var(--copper-2)}
.nav a.btn{border-bottom:0;padding:.5rem 1rem;color:#fff}
.menu-btn{display:none;background:none;border:0;padding:8px;cursor:pointer}
.menu-btn span{display:block;width:24px;height:2px;background:var(--fog);margin:5px 0;transition:.2s}

/* buttons */
.btn{display:inline-block;background:var(--copper);color:#fff;text-decoration:none;font-weight:600;padding:.8rem 1.35rem;border-radius:var(--r);border:1px solid transparent;transition:.15s;cursor:pointer;font-family:var(--sans);font-size:1rem}
.btn:hover{background:var(--copper-2);color:#fff}
.btn-sm{padding:.5rem 1rem;font-size:.9rem}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.35);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.08)}
.btn-dark{background:var(--ink);color:#fff}.btn-dark:hover{background:var(--slate)}
.btn-row{display:flex;gap:.8rem;flex-wrap:wrap}

/* hero */
.hero{position:relative;color:#fff;background:var(--ink);overflow:hidden;min-height:620px;display:flex;align-items:center}
.hero img.bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.55}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(21,24,28,.92) 0%,rgba(21,24,28,.72) 45%,rgba(21,24,28,.25) 100%)}
.hero .wrap{position:relative;z-index:1;padding-top:5rem;padding-bottom:5rem}
.hero h1{max-width:13ch;margin-bottom:1rem}
.hero p.lead{font-size:1.2rem;max-width:56ch;color:#d7dbe0;margin-bottom:1.8rem}
.hero .eyebrow{color:var(--copper-2)}
.hero-sm{min-height:380px}
.hero-sm h1{max-width:20ch}

/* page hero w/o image */
.page-head{background:var(--ink);color:#fff;padding:4.5rem 0 3.5rem;border-bottom:4px solid var(--copper)}
.page-head p{color:#c9cfd6;max-width:60ch;font-size:1.15rem;margin:0}

/* stats strip */
.stats{background:var(--graphite);color:#fff;border-top:1px solid rgba(255,255,255,.08)}
.stats .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:1px}
.stat{padding:1.6rem 1.2rem;border-left:1px solid rgba(255,255,255,.08)}
.stat:first-child{border-left:0}
.stat b{display:block;font-size:2rem;font-weight:600;color:var(--copper-2);font-family:var(--mono);line-height:1}
.stat span{font-size:.85rem;color:var(--mist);letter-spacing:.04em;text-transform:uppercase;font-family:var(--mono)}

/* sections */
.section{padding:5rem 0}
.section.tight{padding:3.5rem 0}
.section.alt{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section.dark{background:var(--ink);color:#e6e9ec}
.section.dark .muted{color:#aab2bb}
.section-head{max-width:64ch;margin-bottom:2.6rem}
.section-head p{font-size:1.1rem;color:var(--muted)}
.dark .section-head p{color:#b8c0c8}

.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:2rem}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem}
.grid-4{display:grid;grid-template-columns:2fr 1fr 1fr 1.3fr;gap:2rem}

/* cards */
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;text-decoration:none;color:inherit;transition:.2s}
.card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.card img{aspect-ratio:3/2;object-fit:cover;width:100%}
.card .body{padding:1.3rem 1.3rem 1.5rem}
.card h3{margin-bottom:.4rem}
.card p{color:var(--muted);margin:0;font-size:.98rem}
.card .more{margin-top:auto;padding:0 1.3rem 1.2rem;font-weight:600;color:var(--copper);font-size:.95rem}
.dark .card{background:var(--slate);border-color:rgba(255,255,255,.08)}
.dark .card p{color:#b8c0c8}

/* feature split */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:3.5rem;align-items:center}
.split.rev>figure{order:2}
.split figure{margin:0;border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow)}
.split figure img{aspect-ratio:3/2;object-fit:cover;width:100%}
.split ul{padding-left:1.1rem;color:var(--muted)}
.split li{margin:.35rem 0}

/* lists & specs */
.checks{list-style:none;padding:0;margin:0 0 1.2rem}
.checks li{position:relative;padding-left:1.7rem;margin:.5rem 0}
.checks li::before{content:"";position:absolute;left:0;top:.5em;width:.9rem;height:.9rem;border-radius:50%;background:var(--copper);mask:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><path d="M3 8.5l3 3 7-7" fill="none" stroke="black" stroke-width="2.2"/></svg>') center/contain no-repeat;-webkit-mask:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><path d="M3 8.5l3 3 7-7" fill="none" stroke="black" stroke-width="2.2"/></svg>') center/contain no-repeat}
.spec{width:100%;border-collapse:collapse;font-size:.95rem}
.spec th,.spec td{text-align:left;padding:.65rem .8rem;border-bottom:1px solid var(--line);vertical-align:top}
.spec th{font-family:var(--mono);font-weight:500;color:var(--muted);font-size:.8rem;letter-spacing:.06em;text-transform:uppercase;width:34%}
.dark .spec th,.dark .spec td{border-color:rgba(255,255,255,.1)}

/* logos / industries row */
.pills{display:flex;flex-wrap:wrap;gap:.6rem}
.pill{font-family:var(--mono);font-size:.8rem;letter-spacing:.06em;text-transform:uppercase;padding:.45rem .8rem;border:1px solid var(--line);border-radius:999px;background:var(--white);color:var(--steel)}
.dark .pill{background:transparent;border-color:rgba(255,255,255,.18);color:#d7dbe0}

/* CTA band */
.cta{background:linear-gradient(135deg,var(--graphite),var(--slate));color:#fff;padding:4rem 0}
.cta .wrap{display:flex;justify-content:space-between;align-items:center;gap:2rem;flex-wrap:wrap}
.cta h2{margin:0 0 .3rem}
.cta p{margin:0;color:#c9cfd6}

/* process steps */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:1.4rem}
.step{counter-increment:s;background:var(--white);border:1px solid var(--line);border-radius:var(--r);padding:1.4rem}
.step::before{content:"0" counter(s);font-family:var(--mono);color:var(--copper);font-size:.85rem;letter-spacing:.1em;display:block;margin-bottom:.6rem}
.step h3{font-size:1.05rem}
.step p{margin:0;color:var(--muted);font-size:.95rem}

/* team structure */
.org{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.org .cell{background:var(--white);border:1px solid var(--line);border-left:4px solid var(--copper);border-radius:var(--r);padding:1.1rem 1.2rem}
.org .cell b{display:block;font-family:var(--mono);font-size:1.4rem;font-weight:500;color:var(--ink)}
.org .cell span{font-size:.92rem;color:var(--muted)}

/* careers */
.job{display:grid;grid-template-columns:1fr auto;gap:1.5rem;align-items:center;background:var(--white);border:1px solid var(--line);border-radius:var(--r);padding:1.3rem 1.5rem;margin-bottom:1rem}
.job h3{margin:0 0 .25rem}
.job .meta{font-family:var(--mono);font-size:.8rem;color:var(--muted);letter-spacing:.05em}
.job.featured{border-color:var(--copper);box-shadow:var(--shadow)}
details.role{background:var(--white);border:1px solid var(--line);border-radius:var(--r);margin-bottom:1rem}
details.role summary{cursor:pointer;padding:1.2rem 1.5rem;font-weight:600;font-size:1.1rem;display:flex;justify-content:space-between;align-items:center;gap:1rem;list-style:none}
details.role summary::-webkit-details-marker{display:none}
details.role summary .meta{font-family:var(--mono);font-size:.78rem;color:var(--muted);font-weight:400;letter-spacing:.05em;white-space:nowrap}
details.role[open] summary{border-bottom:1px solid var(--line)}
details.role .body{padding:1.2rem 1.5rem 1.5rem;color:var(--text)}
details.role ul{padding-left:1.1rem;color:var(--muted)}
details.role.featured{border-color:var(--copper)}
.tag{display:inline-block;font-family:var(--mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;background:var(--copper);color:#fff;padding:.2rem .5rem;border-radius:3px;margin-left:.5rem;vertical-align:middle}

/* news */
.post{display:grid;grid-template-columns:220px 1fr;gap:1.6rem;align-items:start;padding:1.6rem 0;border-bottom:1px solid var(--line)}
.post img{aspect-ratio:3/2;object-fit:cover;border-radius:var(--r)}
.post time{font-family:var(--mono);font-size:.8rem;color:var(--copper);letter-spacing:.06em;text-transform:uppercase}
.post h3{margin:.3rem 0 .4rem}
.post p{color:var(--muted);margin:0}

/* forms */
form .row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
label{display:block;font-weight:600;font-size:.92rem;margin:.9rem 0 .35rem}
input,select,textarea{width:100%;font:inherit;padding:.7rem .8rem;border:1px solid var(--line);border-radius:var(--r);background:var(--white);color:var(--text)}
input:focus,select:focus,textarea:focus{outline:2px solid var(--copper-2);outline-offset:1px;border-color:var(--copper)}
textarea{min-height:140px;resize:vertical}
.hp{position:absolute;left:-9999px}
.notice{background:#eef6f6;border:1px solid #bfdcdd;border-radius:var(--r);padding:1rem 1.2rem;font-size:.95rem}
.contact-aside{background:var(--white);border:1px solid var(--line);border-radius:var(--r);padding:1.6rem}
.contact-aside h3{font-size:1.05rem;margin-top:1.2rem}
.contact-aside h3:first-child{margin-top:0}
.contact-aside a{color:var(--copper);text-decoration:none;font-weight:600}

/* prose pages */
.prose{max-width:72ch}
.prose h2{font-size:1.5rem;margin-top:2.4rem}
.prose h3{font-size:1.15rem;margin-top:1.6rem}
.prose ul{color:var(--muted)}
.prose .updated{font-family:var(--mono);font-size:.82rem;color:var(--muted)}

/* footer */
.site-footer{background:var(--ink);color:#b9c0c8;padding:3.5rem 0 1.6rem;font-size:.95rem}
.site-footer h4{color:#fff;font-size:.85rem;letter-spacing:.1em;text-transform:uppercase;font-family:var(--mono);font-weight:500;margin-bottom:.9rem}
.site-footer a{display:block;color:#b9c0c8;text-decoration:none;margin:.35rem 0}
.site-footer a:hover{color:#fff}
.f-brand .mark{margin-bottom:1rem}
.f-brand p{max-width:34ch}
.legal{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.08);margin-top:2.5rem;padding-top:1.2rem;font-size:.85rem;color:#8a929b}
.legal a{display:inline;color:#8a929b}

/* figure captions */
figcaption{font-family:var(--mono);font-size:.78rem;color:var(--muted);padding:.6rem 0 0;letter-spacing:.03em}

/* reveal */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}

/* responsive */
@media (max-width:1000px){
  .grid-4{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .org{grid-template-columns:1fr 1fr}
  .split{grid-template-columns:1fr;gap:2rem}.split.rev>figure{order:0}
  .stats .wrap{grid-template-columns:1fr 1fr}.stat:nth-child(3){border-left:0}
}
@media (max-width:820px){
  body{font-size:16px}
  .menu-btn{display:block}
  .nav{display:none;position:absolute;left:0;right:0;top:68px;background:var(--graphite);flex-direction:column;align-items:stretch;padding:.6rem 20px 1.2rem;gap:0;border-bottom:1px solid rgba(255,255,255,.1)}
  .nav.open{display:flex}
  .nav a{padding:.8rem 0;border-bottom:1px solid rgba(255,255,255,.06)!important;font-size:1.05rem}
  .nav a.btn{margin-top:.8rem;text-align:center}
  .grid-2,.grid-3{grid-template-columns:1fr}
  .hero{min-height:520px}
  .section{padding:3.5rem 0}
  .post{grid-template-columns:1fr}
  form .row{grid-template-columns:1fr}
  .job{grid-template-columns:1fr}
}
@media (max-width:560px){
  .grid-4,.steps,.org,.stats .wrap{grid-template-columns:1fr}
  .stat{border-left:0;border-top:1px solid rgba(255,255,255,.08)}
}

/* v2 additions: security studio */
.quote{border-left:3px solid var(--copper);padding:.4rem 0 .4rem 1.4rem;font-family:var(--serif);font-size:1.35rem;line-height:1.4;color:var(--ink);max-width:40ch;margin:0}
.quote cite{display:block;font-family:var(--mono);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-top:.9rem;font-style:normal}
.dark .quote{color:#fff}
.two-col{columns:2;column-gap:3rem}
.two-col p{break-inside:avoid}
.kv{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.kv div{background:var(--white);border:1px solid var(--line);border-radius:var(--r);padding:1.2rem 1.3rem}
.kv b{display:block;font-family:var(--serif);font-weight:500;font-size:1.3rem;margin-bottom:.3rem}
.kv p{margin:0;color:var(--muted);font-size:.95rem}
.dark .kv div{background:var(--slate);border-color:rgba(255,255,255,.08)}
.dark .kv b{color:#fff}.dark .kv p{color:#b8c0c8}
pre.block{background:var(--ink);color:#d7dbe0;font-family:var(--mono);font-size:.85rem;padding:1rem 1.2rem;border-radius:var(--r);overflow:auto;line-height:1.5}
.timeline{list-style:none;padding:0;margin:0;border-left:2px solid var(--line)}
.timeline li{position:relative;padding:0 0 1.4rem 1.6rem}
.timeline li::before{content:"";position:absolute;left:-7px;top:.45em;width:12px;height:12px;border-radius:50%;background:var(--copper);border:2px solid var(--paper)}
.timeline b{font-family:var(--mono);font-weight:500;color:var(--copper);display:block;font-size:.85rem;letter-spacing:.06em}
@media (max-width:820px){.two-col{columns:1}.kv{grid-template-columns:1fr}}