:root{
  --ink:#0A0B0D; --ink-2:#141619; --paper:#F3F0E8; --paper-2:#EAE6DB;
  --indigo:#1E2A52; --amber:#D98A34; --teal:#1F8A82; --teal-lt:#4EC4BC;
  --slate:#6E6A63; --slate-lt:#8C877D; --line:#DAD5C7; --line-dk:#23262C;
  --paper-on-ink:#EEEAE0; --slate-on-ink:#7E8894;
  --sans:'Public Sans',system-ui,-apple-system,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --max:1120px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--paper);color:var(--ink);
  font-size:17px;line-height:1.6;font-weight:400;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 36px}
h1,h2,h3{font-weight:800;letter-spacing:-0.03em;line-height:1.04;text-wrap:balance}
.kicker{font-family:var(--mono);font-size:12px;letter-spacing:.15em;text-transform:uppercase;color:var(--slate);font-weight:500}
section{border-top:1px solid var(--line)}

/* nav */
header{position:sticky;top:0;z-index:60;background:rgba(243,240,232,.88);backdrop-filter:blur(9px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{font-weight:800;font-size:20px;letter-spacing:-0.04em;display:flex;align-items:center;gap:10px}
.brand .mk{width:22px;height:22px;color:var(--indigo);flex:none}
.navlinks{display:flex;gap:30px;align-items:center}
.navlinks a{font-size:14.5px;color:var(--slate);font-weight:500}
.navlinks a:hover,.navlinks a.on{color:var(--ink)}
.navlinks .cta{font-family:var(--mono);font-size:13px;color:var(--ink);border:1px solid var(--ink);padding:8px 16px}
.navlinks .cta:hover{background:var(--ink);color:var(--paper)}
@media(max-width:760px){.navlinks a:not(.cta){display:none}}

/* buttons */
.btn{font-family:var(--mono);font-size:14px;padding:13px 22px;font-weight:500;display:inline-block}
.btn.primary{background:var(--teal);color:#04110F}.btn.primary:hover{background:var(--teal-lt)}
.btn.ghost{border:1px solid rgba(255,255,255,.28);color:#fff}.btn.ghost:hover{border-color:#fff}
.btn.dark{border:1px solid var(--ink);color:var(--ink)}.btn.dark:hover{background:var(--ink);color:var(--paper)}

/* home hero */
.hero{background:var(--ink);color:var(--paper-on-ink);position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(255,255,255,.018) 1px,transparent 1px) 0 0/72px 72px,linear-gradient(rgba(255,255,255,.018) 1px,transparent 1px) 0 0/72px 72px;mask-image:radial-gradient(130% 100% at 12% 0%,#000 22%,transparent 70%)}
.hero .wrap{position:relative;padding:118px 36px 104px}
.hero .kicker{color:var(--teal-lt);letter-spacing:.06em;text-transform:none;font-size:15px}
.hero h1{color:#fff;font-size:clamp(46px,8vw,92px);font-weight:800;max-width:13ch;margin-top:20px}
.hero .lede{margin-top:32px;max-width:56ch;font-size:20px;color:#C4C9D1}
.hero .acts{margin-top:40px;display:flex;gap:16px;flex-wrap:wrap;align-items:center}

/* console */
.console{margin-top:56px;border:1px solid var(--line-dk);background:#0E1013;max-width:600px;font-family:var(--mono);font-size:13px}
.console .top{padding:9px 14px;border-bottom:1px solid var(--line-dk);color:var(--slate-on-ink);font-size:11.5px;display:flex;align-items:center;gap:9px;letter-spacing:.04em}
.live{width:7px;height:7px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 0 rgba(31,138,130,.6);animation:pl 2.6s infinite}
@keyframes pl{70%{box-shadow:0 0 0 8px rgba(31,138,130,0)}100%{box-shadow:0 0 0 0 rgba(31,138,130,0)}}
.console .body{padding:15px 16px;line-height:2;color:#C4C9D1}
.console .body .d{color:var(--slate-on-ink)}.console .body .g{color:#3FB27F}.console .body .c{color:#37B3AB}.console .body .w{color:#fff}

/* page hero (subpages) */
.phero{background:var(--ink);color:var(--paper-on-ink)}
.phero .wrap{padding:84px 36px 72px}
.phero .kicker{color:var(--teal-lt)}
.phero h1{color:#fff;font-size:clamp(38px,6vw,66px);margin-top:16px;max-width:16ch}
.phero p{margin-top:24px;max-width:56ch;font-size:19px;color:#C4C9D1}

/* generic light section + prose */
.sec{background:var(--paper)}
.sec.alt{background:var(--paper-2)}
.sec .wrap{padding:88px 36px}
.sec h2{font-size:clamp(28px,4vw,44px);max-width:20ch}
.sec .lead{margin-top:22px;max-width:56ch;font-size:18.5px;color:var(--slate)}
.cols{margin-top:40px;display:grid;grid-template-columns:1fr 1fr;gap:52px;max-width:960px}
@media(max-width:820px){.cols{grid-template-columns:1fr;gap:26px}}
.cols p{color:var(--slate);font-size:18px}.cols p b{color:var(--ink);font-weight:600}

/* why (home) */
.why{background:var(--paper)}.why .wrap{padding:104px 36px}
.why h2{font-size:clamp(30px,4.6vw,52px);max-width:18ch}
.why .line{margin-top:52px;font-family:var(--mono);font-size:14px;color:var(--slate-lt);border-top:1px solid var(--line);padding-top:22px}
.why .line b{color:var(--teal);font-weight:500}

/* build grid (home + product) */
.build{background:var(--ink);color:var(--paper-on-ink)}.build .wrap{padding:100px 36px}
.build .kicker{color:var(--slate-on-ink)}
.build h2{color:#fff;font-size:clamp(28px,4vw,44px);margin-top:16px;max-width:20ch}
.grid{margin-top:52px;display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line-dk);border:1px solid var(--line-dk)}
@media(max-width:760px){.grid{grid-template-columns:1fr}}
.cell{background:var(--ink);padding:34px 32px}
.cell .h{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:14px}
.cell .name{font-size:23px;font-weight:800;letter-spacing:-0.03em;color:#fff}
.cell .tag{font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--teal-lt)}
.cell p{font-size:15.5px;color:#AEB4BD;max-width:44ch}

/* product detail rows */
.pdetail{background:var(--paper)}.pdetail .wrap{padding:20px 36px 40px}
.prow{display:grid;grid-template-columns:230px 1fr;gap:40px;padding:44px 0;border-top:1px solid var(--line);align-items:start}
.prow:first-child{border-top:none}
@media(max-width:760px){.prow{grid-template-columns:1fr;gap:14px}}
.prow .pk{font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--teal);margin-top:8px}
.prow h3{font-size:28px;letter-spacing:-0.03em}
.prow .st{display:inline-block;margin:12px 0;font-family:var(--mono);font-size:11.5px;color:var(--slate);border:1px solid var(--line);padding:4px 10px}
.prow p{color:var(--slate);font-size:17px;max-width:56ch}.prow p+p{margin-top:14px}

/* security list */
.slist{margin-top:40px;display:grid;gap:1px;background:var(--line);border:1px solid var(--line)}
.srow{background:#fff;padding:28px 30px;display:grid;grid-template-columns:200px 1fr;gap:32px}
@media(max-width:760px){.srow{grid-template-columns:1fr;gap:10px}}
.srow h3{font-size:19px}.srow .pk{font-family:var(--mono);font-size:11.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--teal)}
.srow p{color:var(--slate);font-size:16px}

/* diagram */
.diagram{margin-top:44px;border:1px solid var(--line-dk);background:#0E1013;padding:30px}
.diagram svg{width:100%;height:auto;display:block}

/* contact */
.clist{margin-top:40px;display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);max-width:820px}
@media(max-width:640px){.clist{grid-template-columns:1fr}}
.crow{background:#fff;padding:28px 30px}
.crow .pk{font-family:var(--mono);font-size:11.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--slate)}
.crow a{display:block;margin-top:8px;font-size:20px;font-weight:700;letter-spacing:-0.02em}
.crow a:hover{color:var(--teal)}
.crow p{margin-top:6px;color:var(--slate);font-size:15px}

/* closing */
.close{background:var(--paper-2)}.close .wrap{padding:104px 36px;display:grid;grid-template-columns:1.5fr 1fr;gap:52px;align-items:end}
@media(max-width:820px){.close .wrap{grid-template-columns:1fr;gap:30px}}
.close h2{font-size:clamp(32px,5vw,58px);max-width:14ch}
.close p{margin-top:22px;color:var(--slate);max-width:44ch;font-size:18.5px}
.close .act{display:flex;flex-direction:column;gap:14px;align-items:flex-start}
.close .act a.mail{font-family:var(--mono);font-size:16px;color:var(--ink);border-bottom:1px solid var(--ink);padding-bottom:3px}
.close .act a.mail:hover{color:var(--teal);border-color:var(--teal)}
.close .meta{margin-top:24px;font-family:var(--mono);font-size:12.5px;color:var(--slate);border-top:1px solid var(--line);padding-top:18px;line-height:1.9}

/* footer */
footer{background:var(--ink);color:var(--slate-on-ink)}
footer .wrap{padding:52px 36px 40px;display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px}
@media(max-width:760px){footer .wrap{grid-template-columns:1fr 1fr}}
footer .brand{color:#fff;font-size:18px}footer .brand .mk{color:var(--paper)}
footer .fcol h4{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--slate-on-ink);font-weight:500;margin-bottom:14px}
footer .fcol a{display:block;color:#B7BEC8;font-size:14.5px;margin-bottom:9px}footer .fcol a:hover{color:#fff}
footer .fmeta{font-family:var(--mono);font-size:12px;color:var(--slate-on-ink);margin-top:6px;line-height:1.8}
footer .bottom{grid-column:1/-1;border-top:1px solid var(--line-dk);margin-top:14px;padding-top:20px;font-family:var(--mono);font-size:12px;color:var(--slate-on-ink)}

/* ── motion ─────────────────────────────────────────────── */
@keyframes rise{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.hero .kicker{animation:rise .6s .04s both}
.hero h1{animation:rise .7s .12s both}
.hero .lede{animation:rise .7s .22s both}
.hero .acts{animation:rise .7s .32s both}
.hero .console{animation:rise .7s .42s both}
.phero .kicker{animation:rise .6s .04s both}
.phero h1{animation:rise .7s .12s both}
.phero p{animation:rise .7s .22s both}
/* scroll-reveal: anim.js adds .rv, the observer adds .in (no JS -> visible, never stuck) */
.rv{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.rv.in{opacity:1;transform:none}
/* hover life */
.cell,.btn.primary,.btn.ghost,.btn.dark,.prow{transition:transform .18s ease,background .18s ease,border-color .18s ease,color .18s ease}
.cell:hover{transform:translateY(-3px)}
.srow,.crow{transition:background .18s ease}
.srow:hover,.crow:hover{background:#faf8f2}
.navlinks a{transition:color .15s ease}
/* egress diagram: data flowing along the allowed path */
@keyframes flow{to{stroke-dashoffset:-16}}
.diagram .flow{animation:flow 1.1s linear infinite}
@media(prefers-reduced-motion:reduce){
  .hero .kicker,.hero h1,.hero .lede,.hero .acts,.hero .console,
  .phero .kicker,.phero h1,.phero p{animation:none}
  .rv{opacity:1;transform:none;transition:none}
  .cell:hover{transform:none}
  .diagram .flow{animation:none}
}