/* Enclave AI — styles.css
   Palette: ink #0E1622 / paper #F6F8FA / line #D7DEE6 / slate #4A5A6E / cobalt #1E56D6
   Type: IBM Plex Sans (display+body), IBM Plex Mono (labels, data) */

:root{
  --ink:#0A1220;
  --deep:#101E33;
  --paper:#F3F6F9;
  --card:#FFFFFF;
  --line:#CBD6E2;
  --slate:#44556C;
  --accent:#2158E8;
  --accent-hover:#1240C4;
  --accent-ink:#123A9E;
  --signal:#FF7A1A;
  --ok:#1F7A4D;
  --max:1160px;
  --radius:3px;
  --shadow:0 1px 2px rgba(10,18,32,.06),0 10px 30px rgba(10,18,32,.08);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}
body{
  margin:0;
  font-family:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:1.0625rem;line-height:1.65;
  color:var(--ink);background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img,svg{max-width:100%;height:auto;display:block}
a{color:var(--accent-ink);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--accent)}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:var(--radius)}

.skip-link{
  position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;
  padding:.6rem 1rem;z-index:200;font-weight:600;
}
.skip-link:focus{left:.5rem;top:.5rem}

.wrap{max-width:var(--max);margin:0 auto;padding:0 1.25rem}

/* ---------- Type ---------- */
h1,h2,h3,h4{font-family:"IBM Plex Sans",sans-serif;line-height:1.15;margin:0 0 .6em;letter-spacing:-.015em}
h1{font-size:clamp(2.2rem,5vw,3.6rem);font-weight:600;letter-spacing:-.025em}
h2{font-size:clamp(1.5rem,3vw,2.1rem);font-weight:600}
h3{font-size:1.22rem;font-weight:600}
p{margin:0 0 1.1em}
.lede{font-size:1.2rem;color:var(--slate);max-width:44em}
.eyebrow{
  font-family:"IBM Plex Mono",ui-monospace,monospace;
  font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent-ink);margin:0 0 1.1rem;display:inline-flex;align-items:center;gap:.6rem;font-weight:500;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--signal)}
.mono{font-family:"IBM Plex Mono",ui-monospace,monospace}
.muted{color:var(--slate)}

/* ---------- Signature: perimeter brackets ---------- */
.bracket{position:relative;padding:1.6rem}
.bracket::before,.bracket::after{
  content:"";position:absolute;width:22px;height:22px;border:2px solid var(--accent);
  pointer-events:none;
}
.bracket::before{top:0;left:0;border-right:0;border-bottom:0}
.bracket::after{bottom:0;right:0;border-left:0;border-top:0}
.bracket--ink::before,.bracket--ink::after{border-color:var(--ink)}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;background:rgba(246,248,250,.92);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:1.5rem;min-height:68px}
.brand{display:flex;align-items:center;gap:.6rem;text-decoration:none;color:var(--ink);font-weight:600;font-size:1.08rem;letter-spacing:-.01em}
.brand svg{flex:0 0 auto}
.nav-links{display:flex;gap:1.4rem;list-style:none;margin:0 0 0 auto;padding:0;align-items:center}
.nav-links a{color:var(--ink);text-decoration:none;font-size:.96rem;padding:.35rem 0;border-bottom:2px solid transparent}
.nav-links a:hover,.nav-links a[aria-current="page"]{border-bottom-color:var(--accent);color:var(--ink)}
.nav-cta{
  background:var(--accent);color:#fff!important;padding:.6rem 1.15rem!important;
  border:2px solid var(--accent)!important;border-radius:var(--radius);font-weight:600;
  border-bottom:2px solid var(--accent)!important;
  box-shadow:0 3px 10px rgba(33,88,232,.3);
}
.nav-cta:hover{background:var(--accent-hover);border-color:var(--accent-hover)!important;color:#fff!important}
.nav-toggle{
  display:none;margin-left:auto;background:none;border:1px solid var(--line);
  border-radius:var(--radius);padding:.5rem .7rem;cursor:pointer;color:var(--ink);
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.5rem;
  background:var(--accent);color:#fff;text-decoration:none;
  padding:.95rem 1.7rem;border-radius:var(--radius);font-weight:600;font-size:1.02rem;
  border:2px solid var(--accent);cursor:pointer;
  box-shadow:0 4px 14px rgba(33,88,232,.28);
  transition:transform .12s ease,box-shadow .12s ease,background .12s ease;
}
.btn::after{content:"\2192";font-family:"IBM Plex Mono",monospace;font-weight:400}
.btn:hover{background:var(--accent-hover);border-color:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:0 6px 18px rgba(33,88,232,.36)}
.btn--ghost{background:transparent;color:var(--accent-ink);border-color:var(--accent);box-shadow:none}
.btn--ghost::after{content:none}
.btn--ghost:hover{background:var(--accent);color:#fff;box-shadow:0 4px 14px rgba(33,88,232,.28)}
.btn--light{background:#fff;border-color:#fff;color:var(--accent-ink);box-shadow:0 4px 14px rgba(0,0,0,.25)}
.btn--light:hover{background:var(--signal);border-color:var(--signal);color:#fff}

/* ---------- Hero ---------- */
.hero{
  padding:5rem 0 4rem;border-bottom:1px solid var(--line);position:relative;
  background-image:
    linear-gradient(to right,rgba(33,88,232,.055) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(33,88,232,.055) 1px,transparent 1px);
  background-size:44px 44px;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,transparent 40%,var(--paper) 96%);
}
.hero .wrap{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:3rem;align-items:start}
.hero h1{max-width:15em}
.hero .actions{display:flex;gap:.8rem;flex-wrap:wrap;margin-top:1.6rem}
.spec-sheet{
  background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow);
}
.spec-sheet dl{margin:0;padding:.4rem 0}
.spec-sheet .row{
  display:flex;justify-content:space-between;gap:1rem;align-items:baseline;
  padding:.8rem 1.4rem;border-bottom:1px solid var(--line);
}
.spec-sheet .row:last-child{border-bottom:0}
.spec-sheet dt{font-family:"IBM Plex Mono",monospace;font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--slate)}
.spec-sheet dd{margin:0;font-weight:600;text-align:right}

/* ---------- Sections ---------- */
.section{padding:4rem 0}
.section--alt{background:var(--card);border-bottom:1px solid var(--line)}
.hero + .section--alt{border-top:0}
.section--ink{background:var(--ink);color:#E8EDF4}
.section--ink h2,.section--ink h3{color:#fff}
.section--ink .muted{color:#9FB0C4}
.section--ink a{color:#BBD0FF}
.section-head{max-width:46em;margin-bottom:2.2rem}

.grid{display:grid;gap:1.4rem}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}

.card{
  background:var(--card);border:1px solid var(--line);border-top:3px solid var(--line);
  border-radius:var(--radius);padding:1.6rem;display:flex;flex-direction:column;gap:.4rem;
  transition:transform .15s ease,box-shadow .15s ease,border-top-color .15s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-top-color:var(--accent)}
.card h3 a{color:var(--ink);text-decoration:none}
.card h3 a:hover{color:var(--accent)}
.card p{color:var(--slate);font-size:.98rem;margin:0}
.card .more{margin-top:auto;padding-top:.9rem;font-weight:600;font-size:.94rem;text-decoration:none;color:var(--accent-ink)}
.card .more::after{content:" \2192";font-family:"IBM Plex Mono",monospace}
.card .more:hover{color:var(--accent)}
.section--ink .card{background:var(--deep);border-color:#26374F}
.section--ink .card p{color:#9FB0C4}
.section--ink .card h3{color:#fff}
.section--ink .card h3 a{color:#fff;text-decoration:none}
.section--ink .card h3 a:hover{color:var(--signal)}

/* step list */
.steps{list-style:none;margin:0;padding:0;counter-reset:step}
.steps li{
  counter-increment:step;position:relative;padding:1.2rem 0 1.2rem 4.2rem;
  border-bottom:1px solid var(--line);
}
.steps li::before{
  content:counter(step,decimal-leading-zero);
  position:absolute;left:0;top:1.15rem;
  font-family:"IBM Plex Mono",monospace;font-size:1rem;color:#fff;
  background:var(--ink);border-left:3px solid var(--signal);padding:.35rem .55rem;
}
.steps h3{margin-bottom:.25rem}
.steps p{margin:0;color:var(--slate)}

/* check list */
.checks{list-style:none;margin:0 0 1.2rem;padding:0}
.checks li{position:relative;padding:.35rem 0 .35rem 1.9rem}
.checks li::before{
  content:"";position:absolute;left:0;top:.72rem;width:12px;height:7px;
  border-left:2.5px solid var(--ok);border-bottom:2.5px solid var(--ok);
  transform:rotate(-45deg);
}

/* table */
.table-scroll{overflow-x:auto;border:1px solid var(--line);background:var(--card)}
table{border-collapse:collapse;width:100%;font-size:.96rem}
caption{text-align:left;padding:.9rem 1.1rem;font-weight:600;border-bottom:1px solid var(--line)}
th,td{padding:.75rem 1.1rem;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
th{font-family:"IBM Plex Mono",monospace;font-size:.76rem;letter-spacing:.08em;text-transform:uppercase;color:var(--slate);background:var(--paper)}
tbody tr:last-child td{border-bottom:0}

/* FAQ */
.faq details{border:1px solid var(--line);background:var(--card);margin-bottom:.7rem}
.faq summary{
  cursor:pointer;padding:1rem 1.3rem;font-weight:600;list-style:none;
  display:flex;justify-content:space-between;gap:1rem;align-items:center;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:"IBM Plex Mono",monospace;font-size:1.2rem;color:var(--accent-ink)}
.faq details[open] summary::after{content:"\2013"}
.faq .faq-body{padding:0 1.3rem 1.1rem;color:var(--slate)}

/* article */
.article{max-width:46em}
.article h2{margin-top:2.2em}
.article h3{margin-top:1.6em}
.article ul,.article ol{padding-left:1.3rem}
.article li{margin:.35rem 0}
.article-meta{font-family:"IBM Plex Mono",monospace;font-size:.8rem;color:var(--slate);letter-spacing:.06em;text-transform:uppercase;margin-bottom:1.4rem}
.callout{border-left:3px solid var(--accent);background:var(--card);padding:1rem 1.3rem;margin:1.6rem 0;color:var(--slate)}

/* breadcrumbs */
.crumb-bar{background:var(--card);border-bottom:1px solid var(--line)}
.crumbs{
  font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:.78rem;
  letter-spacing:.03em;padding:.7rem 1.25rem;margin:0 auto;color:var(--slate);
}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:.5rem;margin:0;padding:0;align-items:center}
.crumbs li+li::before{content:"\203A";margin-right:.5rem;color:var(--accent)}
.crumbs a{color:var(--slate);text-decoration:none}
.crumbs a:hover{color:var(--accent-ink);text-decoration:underline}
.crumbs li[aria-current]{color:var(--ink);font-weight:500}

/* forms */
.field{margin-bottom:1.15rem}
label{display:block;font-weight:600;margin-bottom:.3rem;font-size:.96rem}
.hint{font-size:.85rem;color:var(--slate);margin:.25rem 0 0}
input[type="text"],input[type="email"],input[type="number"],select,textarea{
  width:100%;padding:.7rem .85rem;border:1px solid var(--line);border-radius:var(--radius);
  font:inherit;background:#fff;color:var(--ink);
}
input:focus,select:focus,textarea:focus{outline:3px solid var(--accent);outline-offset:1px;border-color:var(--accent)}

/* calculator */
.calc{display:grid;grid-template-columns:1fr 1fr;gap:2rem;align-items:start}
.calc-out{background:var(--ink);color:#E8EDF4;padding:1.8rem}
.calc-out h3{color:#fff}
.calc-out .big{font-size:2.3rem;font-weight:600;font-family:"IBM Plex Mono",monospace;color:#fff;display:block;margin:.2rem 0 .1rem}
.calc-out .row{display:flex;justify-content:space-between;padding:.65rem 0;border-bottom:1px solid #26374F;gap:1rem}
.calc-out .row:last-child{border-bottom:0}
.calc-note{font-size:.85rem;color:#9FB0C4;margin-top:1rem}

/* footer */
.site-footer{background:var(--deep);color:#B9C6D6;border-top:1px solid #24354E}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:2rem;padding:3.2rem 0 2rem}
.site-footer h4{color:#fff;font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;font-family:"IBM Plex Mono",monospace;margin-bottom:.9rem}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin:.45rem 0}
.site-footer a{color:#B9C6D6;text-decoration:none;font-size:.95rem}
.site-footer a:hover{color:#fff;text-decoration:underline}
.footer-bottom{border-top:1px solid #26374F;padding:1.2rem 0;font-size:.85rem;display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.footer-brand p{font-size:.95rem;max-width:30em}

/* cookie banner */
.cookie-banner{
  position:fixed;bottom:1rem;left:1rem;right:1rem;z-index:150;
  max-width:560px;margin:0 auto;background:var(--card);border:1px solid var(--line);
  box-shadow:var(--shadow);padding:1.2rem 1.4rem;display:none;
}
.cookie-banner.is-visible{display:block}
.cookie-banner p{font-size:.92rem;margin-bottom:.9rem;color:var(--slate)}
.cookie-actions{display:flex;gap:.6rem;flex-wrap:wrap}
.cookie-actions .btn{padding:.55rem 1.1rem;font-size:.92rem}

/* reveal */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}}

/* CTA band */
.cta-band{padding:3.8rem 0;background:linear-gradient(120deg,var(--accent-ink),var(--accent))!important;color:#fff}
.cta-band h2{color:#fff}
.cta-band .inner{display:flex;justify-content:space-between;align-items:center;gap:2rem;flex-wrap:wrap}
.cta-band h2{margin:0}

/* ---------- Responsive ---------- */
@media (max-width:960px){
  .hero-grid{grid-template-columns:1fr}
  .grid--3,.grid--4{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .calc{grid-template-columns:1fr}
}
@media (max-width:700px){
  .nav-toggle{display:block}
  .nav-links{
    display:none;position:absolute;top:68px;left:0;right:0;background:var(--card);
    border-bottom:1px solid var(--line);flex-direction:column;align-items:flex-start;
    padding:1rem 1.25rem;gap:.2rem;
  }
  .nav-links.is-open{display:flex}
  .nav-links li{width:100%}
  .nav-links a{display:block;padding:.65rem 0;width:100%}
  .grid--2,.grid--3,.grid--4{grid-template-columns:1fr}
  .hero{padding:3rem 0 2.5rem}
  .section{padding:2.8rem 0}
  .footer-grid{grid-template-columns:1fr}
}

@media print{
  .site-header,.site-footer,.cookie-banner,.nav-cta{display:none}
  body{background:#fff;color:#000}
}

main > .section:last-child{padding-bottom:4.5rem}
.section--ink .card{border-top:3px solid #26374F}
.section--ink .card:hover{border-top-color:var(--signal)}

/* Contrast fixes: buttons keep their own colors inside dark/cobalt sections */
.section--ink a.btn,.cta-band a.btn{color:#fff}
.section--ink a.btn--light,.cta-band a.btn--light{color:var(--accent-ink);font-weight:700}
.section--ink a.btn--light:hover,.cta-band a.btn--light:hover{color:#fff}
.section--ink a.btn--ghost{color:#fff;border-color:#fff}
.section--ink a.btn--ghost:hover{background:#fff;color:var(--ink)}
/* Dark-section body text lifted for WCAG AA on --deep cards */
.section--ink .card p{color:#B6C4D6}
.section--ink .muted{color:#AEBDD0}
.site-footer{color:#C3CFDD}
.site-footer a{color:#C3CFDD}
.calc-note{color:#B6C4D6}
.calc-out .row{border-bottom-color:#2C4059}