:root{
  --color-ink:#0b1220; --color-ink-2:#0f1826; --color-paper:#edeae2;
  --color-grid:#24344a; --color-mist:#8c96ac; --color-signal:#2276bb;
  /* signal = brand blue. strong = button backgrounds under cream text (4.0:1); text = small blue text on dark (6.9:1);
     deep = blue text on the paper band (7.0:1). danger = red, kept for errors and the incident in the hero diagram. */
  --color-signal-strong:#2276bb; --color-signal-text:#5aa3dc; --color-signal-deep:#16507f;
  --color-danger:#d14a3d; --color-danger-text:#e8695c;
  --color-ink-mist:#3d4655;
  --font-display:'Archivo',sans-serif; --font-body:'IBM Plex Sans',sans-serif; --font-mono:'IBM Plex Mono',monospace;
  --ease-resolve:cubic-bezier(.16,1,.3,1); --ease-standard:cubic-bezier(.4,0,.2,1); --ease-out-soft:cubic-bezier(.25,.1,.25,1);
  --dur-instant:120ms; --dur-fast:220ms; --dur-base:450ms; --dur-slow:700ms;
  --rise-md:16px; --rise-lg:28px;
}
*{box-sizing:border-box;margin:0;padding:0;}
[hidden]{display:none!important;}
html{scroll-behavior:smooth;scroll-padding-top:72px;}
body{background:var(--color-ink);color:var(--color-paper);font-family:var(--font-body);-webkit-font-smoothing:antialiased;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
::selection{background:var(--color-signal-strong);color:var(--color-paper);}
.wrap{max-width:1152px;margin:0 auto;padding:0 24px;}
@media(min-width:768px){.wrap{padding:0 32px;}}
.wrap.flush{padding:0;}
.paper{color:var(--color-paper);}

#ambient-grid{position:fixed;inset:0;z-index:-10;pointer-events:none;opacity:0.3;
  background-image:linear-gradient(rgba(140,150,172,.10) 1px,transparent 1px),linear-gradient(90deg,rgba(140,150,172,.10) 1px,transparent 1px);
  background-size:64px 64px;}

header{position:sticky;top:0;z-index:50;transition:background-color var(--dur-fast),border-color var(--dur-fast);border-bottom:1px solid transparent;}
header.scrolled{background:rgba(11,18,32,.8);backdrop-filter:blur(10px);border-bottom-color:rgba(140,150,172,.14);}
nav{max-width:1200px;margin:0 auto;padding:0 24px;height:64px;display:flex;align-items:center;justify-content:space-between;}
@media(min-width:768px){nav{max-width:1216px;padding:0 32px;}} /* 1152px inside, same as the content column */
.logo{display:flex;align-items:center;flex-shrink:0;}
.logo img{display:block;height:24px;width:auto;}
@media(max-width:379px){.logo img{height:19px;}}
@media(min-width:768px){.logo img{height:26px;}}
@media(min-width:992px){.logo img{height:36px;}}
.navlinks{display:none;list-style:none;align-items:center;gap:36px;font-family:var(--font-body);font-size:14px;color:var(--color-mist);}
@media(min-width:768px){.navlinks{display:flex;}}
.navlinks a{padding-bottom:4px;border-bottom:1px solid transparent;transition:color var(--dur-fast);}
.navlinks a:hover{color:var(--color-paper);}
.navlinks a:focus-visible{outline:none;color:var(--color-paper);border-color:var(--color-signal);}
.navlinks a.active{color:var(--color-paper);border-color:var(--color-signal);}
.nav-right{display:flex;align-items:center;gap:12px;}
.btn{font-family:var(--font-body);font-weight:600;border-radius:2px;display:inline-block;
  transition:transform var(--dur-fast) var(--ease-standard),box-shadow var(--dur-fast) var(--ease-standard),background-color var(--dur-fast),border-color var(--dur-fast);}
.btn:active{transform:scale(.98);transition-duration:var(--dur-instant);}
.btn:focus-visible{outline:none;box-shadow:0 0 0 2px var(--color-ink),0 0 0 4px var(--color-signal);}
.btn-primary{background:var(--color-signal-strong);color:var(--color-paper);}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 10px 24px -8px rgba(34,118,187,.55);}
.btn-ghost{border:1px solid rgba(140,150,172,.4);color:var(--color-paper);}
.btn-ghost:hover{border-color:var(--color-paper);background:rgba(237,234,226,.05);}
.nav-cta{font-size:14px;padding:0 20px;min-height:44px;display:inline-flex;align-items:center;}
.nav-cta-mobile{display:inline-flex;align-items:center;font-size:12px;padding:0 16px;min-height:44px;}
@media(min-width:768px){.nav-cta{display:inline-flex;} .nav-cta-mobile{display:none;}}
@media(max-width:767px){.nav-cta{display:none;}.hidden-xs{display:none;}}
.d-none{display:none!important;}

.hamburger{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:6px;width:44px;height:44px;border-radius:2px;}
.hamburger:focus-visible{outline:none;box-shadow:0 0 0 2px var(--color-signal);}
@media(min-width:768px){.hamburger{display:none;}}
.hamburger span{display:block;width:20px;height:1px;background:var(--color-paper);transition:transform var(--dur-fast);}
.hamburger.open span:first-child{transform:translateY(3.5px) rotate(45deg);}
.hamburger.open span:last-child{transform:translateY(-3.5px) rotate(-45deg);}

#mobile-menu{display:none;position:fixed;inset:0;top:64px;background:var(--color-ink);z-index:49;flex-direction:column;padding:32px 24px;}
#mobile-menu.open{display:flex;}
#mobile-menu a{display:flex;align-items:baseline;gap:16px;padding:16px 0;border-bottom:1px solid rgba(140,150,172,.1);}
#mobile-menu a:focus-visible{outline:none;background:var(--color-ink-2);}
#mobile-menu .num{font-family:var(--font-mono);font-size:12px;color:var(--color-signal-text);}
#mobile-menu .label{font-family:var(--font-display);font-size:20px;}
#mobile-menu .btn{margin-top:32px;justify-content:center;padding:14px 24px;font-size:14px;border-bottom:0;}

section{position:relative;z-index:1;}

/* Hero */
#hero{position:relative;padding:80px 24px 112px;overflow:hidden;}
#hero::before{content:"";position:absolute;inset:5% 0 0 42%;background-image:url('../argos-eye-white-blue.svg');background-repeat:no-repeat;background-position:center;background-size:contain;opacity:0;pointer-events:none;}
@media(min-width:768px){#hero{padding:112px 32px 112px;} #hero::before{inset:8% 0 0 40%;opacity:0.03;}}
#hero-inner{position:relative;z-index:1;max-width:1152px;margin:0 auto;display:grid;gap:48px;align-items:center;transition:opacity var(--dur-fast),transform var(--dur-fast),filter var(--dur-fast);}
@media(min-width:768px){#hero-inner{grid-template-columns:1.1fr 1.1fr;}}
.eyebrow{font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--color-mist);margin-bottom:24px;}
h1{font-family:var(--font-display);font-weight:600;font-size:36px;line-height:1.1;max-width:520px;}
@media(min-width:768px){h1{font-size:48px;}}
h1 .accent{color:var(--color-signal);}
.hero-sub{font-family:var(--font-body);color:var(--color-mist);margin-top:24px;max-width:400px;line-height:1.65;}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:32px;}
.hero-actions .btn{padding:12px 24px;font-size:14px;}

#hero{overflow:hidden;}
.hero-screen-wrap{position:relative;isolation:isolate;width:100%;max-width:500px;margin:0 auto;}
.hero-screen-wrap::before{content:"";position:absolute;z-index:-1;top:50%;left:50%;width:118%;aspect-ratio:1;border-radius:50%;
  background:radial-gradient(circle,#2276bb8c 0%,#2276bb50 38%,transparent 72%);filter:blur(12px);animation:hero-screen-glow 6s ease-in-out infinite;}
.xhero-screen-wrap::after{content:"";position:absolute;inset:-10% -18% -14% -16%;background-image:url('../argos-eye-white-blue.svg');background-repeat:no-repeat;background-position:center;background-size:contain;opacity:.12;transform:scale(1.18) rotate(-4deg);pointer-events:none;z-index:-2;}
.hero-screen{position:relative;z-index:1;display:block;width:100%;height:auto;}
@keyframes hero-screen-glow{
  0%,100%{opacity:.65;transform:translate(-50%,-50%) scale(.88);}
  50%{opacity:1;transform:translate(-50%,-50%) scale(1.04);}
}


/* Stakes */
#stakes{padding:80px 24px;border-top:1px solid rgba(140,150,172,.1);border-bottom:1px solid rgba(140,150,172,.1);}
@media(min-width:768px){#stakes{padding:112px 32px;}}
#stakes .inner{max-width:840px;margin:0 auto;text-align:center;}
#stakes p{font-family:var(--font-display);font-weight:500;font-size:24px;line-height:1.4;}
@media(min-width:768px){#stakes p{font-size:30px;}}
#stakes .mist{color:var(--color-mist);}
#stakes .signal{color:var(--color-signal);}

/* Reveal animations only apply once JS has started (content stays visible without JS). */
.js #stakes .inner{opacity:0;transition:opacity var(--dur-slow) var(--ease-out-soft);}
.js .section-head,.js #cta .inner{opacity:0;transform:translateY(var(--rise-lg));transition:opacity var(--dur-slow) var(--ease-resolve),transform var(--dur-slow) var(--ease-resolve);}
.js .step,.js .seg{opacity:0;transform:translateY(var(--rise-md));transition:opacity var(--dur-base) var(--ease-resolve),transform var(--dur-base) var(--ease-resolve),background-color var(--dur-fast) var(--ease-standard);}
.js .revealed{opacity:1!important;transform:none!important;}

/* generic section head */
.section-head{max-width:576px;margin-bottom:56px;}
.section-tag{font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--color-signal-text);margin-bottom:12px;}
.section-head h2{font-family:var(--font-display);font-weight:600;font-size:26px;}
@media(min-width:768px){.section-head h2{font-size:30px;}}
.section-head p{margin-top:12px;color:var(--color-mist);font-size:15.5px;line-height:1.6;max-width:52ch;}

#process{padding:80px 24px;}
@media(min-width:768px){#process{padding:112px 32px;}}
.steps{list-style:none;display:grid;gap:1px;background:rgba(140,150,172,.1);border:1px solid rgba(140,150,172,.1);}
@media(min-width:768px){.steps{grid-template-columns:repeat(4,1fr);}}
.step{background:var(--color-ink);padding:24px;}
.step .num{font-family:var(--font-mono);font-size:12px;color:var(--color-signal-text);margin-bottom:20px;}
.step h3{font-family:var(--font-display);font-weight:600;font-size:18px;margin-bottom:8px;}
.step p{font-family:var(--font-body);font-size:14px;color:var(--color-mist);line-height:1.55;}

#segments{padding:0 24px 80px;}
@media(min-width:768px){#segments{padding:0 32px 112px;}}
.seg-grid{display:grid;gap:1px;background:rgba(140,150,172,.1);border:1px solid rgba(140,150,172,.1);}
@media(min-width:768px){.seg-grid{grid-template-columns:repeat(3,1fr);}}
.seg{background:var(--color-ink);padding:28px;display:block;}
.seg:hover{background:var(--color-ink-2);}
.seg:focus-visible{outline:none;box-shadow:inset 0 0 0 2px var(--color-signal);}
.seg .tag{font-family:var(--font-mono);font-size:11px;text-transform:uppercase;letter-spacing:.04em;color:var(--color-mist);margin-bottom:16px;}
.seg h3{font-family:var(--font-display);font-weight:600;font-size:18px;margin-bottom:8px;}
.seg p{font-family:var(--font-body);font-size:14px;color:var(--color-mist);line-height:1.6;}


#cta{padding:96px 24px;text-align:center;border-top:1px solid rgba(140,150,172,.1);}
@media(min-width:768px){#cta{padding:128px 32px;}}
#cta h2{font-family:var(--font-display);font-weight:600;font-size:28px;max-width:480px;margin:0 auto 16px;}
@media(min-width:768px){#cta h2{font-size:36px;}}
#cta p{color:var(--color-mist);margin-bottom:32px;}
#cta .hero-actions{justify-content:center;}
#cta .btn{padding:12px 24px;font-size:14px;}

/* Company */
/* Light band so the pilot stands out from the dark sections around it. */
#pilot{padding:80px 24px;background:var(--color-paper);color:var(--color-ink);}
@media(min-width:768px){#pilot{padding:112px 32px;}}
#pilot .section-tag{color:var(--color-signal-deep);font-weight:500;}
#pilot .section-head p{color:var(--color-ink-mist);}
.pilot-grid{display:grid;gap:48px;align-items:center;}
@media(min-width:900px){.pilot-grid{grid-template-columns:1.2fr 1fr;gap:64px;}}
.pilot-grid .section-head{margin-bottom:0;}
.pilot-card{border-left:2px solid var(--color-signal);padding:4px 0 4px 24px;}
@media(min-width:768px){.pilot-card{padding-left:36px;}}
.pilot-name{font-family:var(--font-display);font-weight:600;font-size:28px;line-height:1.12;}
@media(min-width:768px){.pilot-name{font-size:36px;}}
.pilot-faculty{margin-top:16px;color:var(--color-ink-mist);font-size:15px;line-height:1.5;max-width:36ch;}
.pilot-label{margin-top:24px;font-family:var(--font-mono);font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--color-signal-deep);font-weight:500;}
.pilot-points{list-style:none;margin-top:24px;padding-top:20px;border-top:1px solid rgba(11,18,32,.12);display:grid;gap:10px;
  font-family:var(--font-mono);font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--color-ink-mist);font-weight:500;}
.pilot-points li::before{content:'';display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--color-signal);margin-right:12px;vertical-align:middle;}
#about{padding:80px 24px;border-top:1px solid rgba(140,150,172,.1);}
@media(min-width:768px){#about{padding:112px 32px;}}
.about-grid{display:grid;gap:40px;align-items:start;}
@media(min-width:900px){.about-grid{grid-template-columns:1.2fr 1fr;gap:64px;}}
.about-grid .section-head{margin-bottom:0;}
.about-facts{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:rgba(140,150,172,.1);border:1px solid rgba(140,150,172,.1);}
.about-facts div{background:var(--color-ink);padding:20px;}
.about-facts dt{font-family:var(--font-mono);font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--color-signal-text);margin-bottom:8px;}
.about-facts dd{font-family:var(--font-display);font-weight:500;font-size:17px;line-height:1.35;}

/* FAQ */
#faq{padding:0 24px 80px;}
@media(min-width:768px){#faq{padding:0 32px 112px;}}
.faq-list{max-width:760px;border-top:1px solid rgba(140,150,172,.16);}
.faq-list details{border-bottom:1px solid rgba(140,150,172,.16);}
.faq-list summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:24px;padding:20px 0;
  font-family:var(--font-display);font-weight:500;font-size:17px;transition:color var(--dur-fast);}
.faq-list summary::-webkit-details-marker{display:none;}
.faq-list summary::after{content:'+';font-family:var(--font-mono);font-size:20px;color:var(--color-signal-text);transition:transform var(--dur-fast) var(--ease-standard);flex-shrink:0;}
.faq-list details[open] summary::after{transform:rotate(45deg);}
.faq-list summary:hover{color:var(--color-paper);}
.faq-list summary:focus-visible{outline:none;box-shadow:0 0 0 2px var(--color-signal);}
.faq-list details p{color:var(--color-mist);line-height:1.65;font-size:15px;padding:0 40px 24px 0;max-width:64ch;}
.faq-more{margin-top:28px;color:var(--color-mist);font-size:15px;}
.faq-more a,.briefing-direct a,.legal a,footer a{text-decoration:underline;text-underline-offset:3px;text-decoration-color:rgba(140,150,172,.5);transition:color var(--dur-fast),text-decoration-color var(--dur-fast);}
.faq-more a:hover,.briefing-direct a:hover,.legal a:hover,footer a:hover{color:var(--color-paper);text-decoration-color:var(--color-signal);}

/* Footer */
footer{border-top:1px solid rgba(140,150,172,.1);padding:48px 24px 32px;}
@media(min-width:768px){footer{padding:56px 32px 32px;}}
footer .inner{max-width:1152px;margin:0 auto;font-size:13px;line-height:1.7;color:var(--color-mist);}
.footer-grid{display:grid;gap:32px;}
@media(min-width:768px){.footer-grid{grid-template-columns:1fr 1.6fr 1fr;gap:48px;}}
.footer-brand{margin-bottom:12px;}
.footer-brand img{display:block;width:110px;max-width:100%;height:auto;}
.footer-head{font-family:var(--font-mono);font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--color-paper);margin-bottom:8px;}
footer address{font-style:normal;}
.footer-copy{margin-top:40px;padding-top:20px;border-top:1px solid rgba(140,150,172,.1);font-family:var(--font-mono);font-size:11px;}

/* Legal page */
.legal{max-width:720px;margin:0 auto;padding:72px 24px 96px;line-height:1.7;}
@media(min-width:768px){.legal{padding:96px 32px 128px;}}
.legal h1{font-size:32px;max-width:none;margin-bottom:8px;}
@media(min-width:768px){.legal h1{font-size:40px;}}
.legal-meta{font-family:var(--font-mono);font-size:12px;color:var(--color-mist);margin-bottom:40px;}
.legal h2{font-family:var(--font-display);font-weight:600;font-size:20px;margin:40px 0 12px;}
.legal p,.legal li{color:color-mix(in oklab,var(--color-paper) 82%,var(--color-mist));font-size:15.5px;}
.legal p+p{margin-top:12px;}
.legal ul{padding-left:20px;margin-top:8px;}
.legal li+li{margin-top:8px;}
.legal strong{color:var(--color-paper);font-weight:600;}
.legal-back{margin-top:56px;}
.legal .section-tag,.notfound .section-tag{color:var(--color-signal-text);}

/* 404 */
.notfound{max-width:640px;margin:0 auto;padding:112px 24px 128px;text-align:center;}
.notfound-mark{display:block;margin:0 auto 32px;}
.notfound h1{margin:0 auto 16px;font-size:34px;}
@media(min-width:768px){.notfound h1{font-size:44px;}}
.notfound p{color:var(--color-mist);line-height:1.6;}
.notfound .hero-actions{justify-content:center;}
.notfound .btn{padding:12px 24px;font-size:14px;}

/* Briefing form */
#briefing-page{padding:80px 24px;border-top:1px solid rgba(140,150,172,.1);}
@media(min-width:768px){#briefing-page{padding:112px 32px;}}
#briefing-page .inner{max-width:512px;margin:0 auto;}
.briefing-title{font-family:var(--font-display);font-weight:600;font-size:30px;margin-bottom:12px;}
@media(min-width:768px){.briefing-title{font-size:36px;}}
.briefing-intro{color:var(--color-mist);margin-bottom:12px;line-height:1.6;}
.briefing-direct{color:var(--color-mist);margin-bottom:0px;line-height:1.6;font-size:14px;}
.field{display:block;margin-bottom:24px;}
.field-label{font-family:var(--font-mono);font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--color-mist);margin-bottom:8px;display:block;}
.field-label .optional{text-transform:none;letter-spacing:0;color:var(--color-mist);}
.field input[type=text],.field input[type=email],.field textarea{
  width:100%;min-height:48px;background:var(--color-ink-2);border:1px solid rgba(140,150,172,.3);border-radius:2px;
  padding:12px 16px;font-size:14px;font-family:var(--font-body);color:var(--color-paper);
  transition:border-color var(--dur-fast);}
.field textarea{resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--color-mist);opacity:1;}
.field input:focus-visible,.field textarea:focus-visible{outline:none;border-color:var(--color-signal);box-shadow:0 0 0 2px var(--color-signal);}
.field input[aria-invalid=true],.field textarea[aria-invalid=true]{border-color:var(--color-danger);}
.field-error{display:block;color:var(--color-danger-text);font-size:12px;margin-top:8px;}
.form-error{border:1px solid var(--color-danger);background:rgba(209,74,61,.1);color:var(--color-paper);font-size:14px;line-height:1.5;padding:12px 16px;border-radius:2px;margin-bottom:24px;}
.hp{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden;}
.captcha{margin-bottom:24px;}
fieldset{border:none;margin-bottom:24px;padding:0;}
legend{font-family:var(--font-mono);font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--color-mist);margin-bottom:12px;padding:0;}
.segmented{display:grid;grid-template-columns:1fr 1fr;gap:8px;}
@media(min-width:640px){.segmented{display:flex;flex-wrap:wrap;}}
.segment{position:relative;min-height:48px;display:flex;align-items:center;justify-content:center;text-align:center;padding:12px 16px;border-radius:2px;
  border:1px solid rgba(140,150,172,.3);color:var(--color-mist);font-size:14px;cursor:pointer;
  transition:border-color var(--dur-fast),background-color var(--dur-fast),color var(--dur-fast);}
.segment input{position:absolute;opacity:0;pointer-events:none;}
.segment:has(:checked),.segment.selected{border-color:var(--color-signal);background:rgba(34,118,187,.1);color:var(--color-paper);}
.segment:has(:focus-visible){outline:none;box-shadow:0 0 0 2px var(--color-signal);}
.submit-btn{width:100%;min-height:48px;font-family:var(--font-body);font-weight:600;font-size:14px;background:var(--color-signal-strong);color:var(--color-paper);
  border-radius:2px;padding:12px 32px;transition:transform var(--dur-fast),box-shadow var(--dur-fast),opacity var(--dur-fast);}
@media(min-width:640px){.submit-btn{width:auto;}}
.submit-btn:hover{transform:translateY(-1px);box-shadow:0 10px 24px -8px rgba(34,118,187,.55);}
.submit-btn:active{transform:scale(.98);}
.submit-btn:focus-visible{outline:none;box-shadow:0 0 0 2px var(--color-ink),0 0 0 4px var(--color-signal);}
.submit-btn.sending{opacity:.6;pointer-events:none;font-family:var(--font-mono);}
.privacy-note{margin-top:10px;font-size:12px;line-height:1.5;color:var(--color-mist);}
.privacy-note a{text-decoration:underline;text-underline-offset:2px;}
.privacy-note a:hover{color:var(--color-paper);}
#briefing-confirmation{display:none;text-align:center;padding:32px 0;opacity:0;transition:opacity var(--dur-slow) var(--ease-out-soft);}
#briefing-confirmation:focus{outline:none;}
#briefing-confirmation.show{display:block;}
#briefing-confirmation.revealed{opacity:1;}
#briefing-confirmation .confirm-mark{margin:0 auto 24px;display:block;}
#briefing-confirmation h3{font-family:var(--font-display);font-weight:600;font-size:24px;margin-bottom:12px;}
#briefing-confirmation p{color:var(--color-mist);}

@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto;}*{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;}}