/* ===========================================================
   KeyStone @ Mandai — marketing site styles
   Brand: deep blue #2E2A8A / orange #E87634 / charcoal #1C1E2E
   =========================================================== */
:root{
  --blue:#2E2A8A;
  --blue-dark:#211E63;
  --orange:#E87634;
  --orange-dark:#cf6526;
  --ink:#1C1E2E;
  --charcoal:#1c1f30;
  --slate:#4a4f63;
  --muted:#6b7080;
  --line:#e4e6ee;
  --bg:#ffffff;
  --bg-soft:#f5f6fa;
  --bg-blue-soft:#eef0fb;
  --max:1180px;
  --radius:12px;
  --shadow-sm:0 1px 3px rgba(28,30,46,.08);
  --shadow:0 8px 28px rgba(28,30,46,.10);
  --shadow-lg:0 18px 50px rgba(28,30,46,.16);
  --font-head:"Sora","Segoe UI",sans-serif;
  --font-body:"Source Sans 3","Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--bg);
  font-size:17px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none}
a:hover{color:var(--orange)}

/* ---- single shared container (brief §3) ---- */
.container{max-width:var(--max);margin:0 auto;padding:0 22px;width:100%}

/* ---- sections: reduced padding (brief §3) ---- */
section{padding:30px 0}
section.alt{background:var(--bg-soft)}
section.blue-soft{background:var(--bg-blue-soft)}

h1,h2,h3,h4{font-family:var(--font-head);line-height:1.18;color:var(--ink);margin:0 0 .5em}
h1{font-size:2.05rem;font-weight:700;letter-spacing:-.01em}
h2{font-size:1.55rem;font-weight:700;letter-spacing:-.01em;margin-bottom:.55em}
h3{font-size:1.18rem;font-weight:600}
p{margin:0 0 1rem}
.lead{font-size:1.12rem;color:var(--slate)}
.eyebrow{font-family:var(--font-head);font-weight:600;text-transform:uppercase;letter-spacing:.14em;font-size:.74rem;color:var(--orange);margin-bottom:.5rem;display:block}
.section-head{max-width:760px;margin-bottom:18px}
.muted{color:var(--muted)}
.center{text-align:center}

/* ---- buttons ---- */
.btn{
  display:inline-flex;align-items:center;gap:.5em;
  font-family:var(--font-head);font-weight:600;font-size:.98rem;
  padding:13px 26px;border-radius:8px;border:2px solid transparent;
  cursor:pointer;transition:.18s;line-height:1;text-align:center;
}
.btn-primary{background:var(--orange);color:#fff}
.btn-primary:hover{background:var(--orange-dark);color:#fff;transform:translateY(-1px)}
.btn-blue{background:var(--blue);color:#fff}
.btn-blue:hover{background:var(--blue-dark);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff}
.btn-outline{background:#fff;color:var(--blue);border-color:var(--line)}
.btn-outline:hover{border-color:var(--orange);color:var(--orange)}

/* =========================================================
   HEADER / NAV
   ========================================================= */
.topbar{background:var(--blue-dark);color:#dfe1f4;font-size:.82rem;font-family:var(--font-head)}
.topbar a{color:#dfe1f4;text-decoration:none;transition:.15s}
.topbar a:hover{color:#fff}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:38px;gap:14px}
.topbar-left,.topbar-right{display:flex;align-items:center;gap:14px;min-width:0}
.tb-item{display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.tb-ic{opacity:.85;font-size:.92em}
.tb-sep{opacity:.4}
.tb-wa{background:rgba(255,255,255,.13);padding:3px 11px;border-radius:20px;font-weight:600}
.tb-wa:hover{background:var(--orange)}
@media(max-width:980px){
  .tb-tagline,.tb-sep{display:none}
  .topbar-left .tb-item:first-child{overflow:hidden;text-overflow:ellipsis}
}
@media(max-width:760px){
  .topbar-inner{height:auto;flex-direction:column;align-items:stretch;gap:0;padding:0}
  .topbar-left{display:none}
  .topbar-right{justify-content:center;gap:14px;padding:7px 0}
  .topbar-right a[href^="mailto"]{display:none}
}
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm)}
.nav{display:flex;align-items:center;justify-content:space-between;height:66px}
.nav-logo img{height:40px;width:auto}
.nav-links{display:flex;align-items:center;gap:2px;list-style:none;margin:0;padding:0}
.nav-links>li{position:relative}
.nav-links a{
  font-family:var(--font-head);font-weight:500;font-size:.93rem;color:var(--ink);
  padding:8px 12px;border-radius:6px;transition:.15s;white-space:nowrap;display:inline-flex;align-items:center;gap:5px;
}
.nav-links a:hover,.nav-links a.active{color:var(--orange);background:var(--bg-soft)}
.nav-cta{margin-left:10px}
.nav-cta a{white-space:nowrap}
/* dropdown caret */
.caret{width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;border-top:5px solid currentColor;display:inline-block;transition:transform .2s}
.has-sub:hover .caret,.has-sub:focus-within .caret{transform:rotate(180deg)}
/* submenu */
.sub-menu{
  list-style:none;margin:0;padding:6px;position:absolute;top:calc(100% + 6px);left:0;min-width:220px;
  background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow);
  opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity .18s,transform .18s,visibility .18s;z-index:70;
}
.sub-menu::before{content:"";position:absolute;top:-6px;left:0;right:0;height:6px}
.has-sub:hover .sub-menu,.has-sub:focus-within .sub-menu{opacity:1;visibility:visible;transform:translateY(0)}
.sub-menu li{display:block}
.sub-menu a{display:block;padding:9px 12px;border-radius:6px;font-size:.9rem;font-weight:500}
.sub-toggle{display:none}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px;flex-direction:column;gap:5px}
.nav-toggle span{width:24px;height:2px;background:var(--ink);display:block;transition:.2s}
@media(max-width:980px){
  .nav-toggle{display:flex}
  .nav-links{
    position:absolute;top:66px;left:0;right:0;background:#fff;flex-direction:column;
    align-items:stretch;gap:0;padding:8px 0;border-bottom:1px solid var(--line);
    box-shadow:var(--shadow);max-height:0;overflow:hidden;transition:max-height .3s;
  }
  .nav-links.open{max-height:720px;overflow:auto}
  .nav-links a{padding:13px 22px;border-radius:0}
  .nav-cta{margin:10px 22px 6px}
  .nav-cta a{justify-content:center}
  /* mobile accordion submenu */
  .nav-links>li{position:static}
  .has-sub{display:flex;flex-wrap:wrap;align-items:center}
  .has-sub>a{flex:1}
  .caret{display:none}
  .sub-toggle{
    display:flex;align-items:center;justify-content:center;width:46px;align-self:stretch;
    background:none;border:0;border-left:1px solid var(--line);cursor:pointer;color:var(--ink);
  }
  .sub-toggle::before{content:"";width:0;height:0;border-left:5px solid transparent;border-right:5px solid transparent;border-top:6px solid currentColor;transition:transform .2s}
  .sub-toggle[aria-expanded="true"]::before{transform:rotate(180deg)}
  .sub-menu{
    position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;border-radius:0;
    width:100%;flex-basis:100%;padding:0;background:var(--bg-soft);max-height:0;overflow:hidden;transition:max-height .25s;
  }
  .sub-menu.open{max-height:340px}
  .sub-menu a{padding:12px 22px 12px 38px}
}

/* =========================================================
   HERO
   ========================================================= */
.hero{position:relative;overflow:hidden;color:#fff;background:var(--blue-dark)}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.hero::after{content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(110deg,rgba(33,30,99,.55) 0%,rgba(33,30,99,.24) 48%,rgba(28,30,46,.12) 100%);}
.hero-inner{position:relative;z-index:2;padding:78px 0 84px;max-width:660px}
.hero h1{color:#fff;font-size:2.7rem;text-shadow:0 2px 18px rgba(0,0,0,.4);margin-bottom:.4em}
.hero .lede{font-size:1.2rem;color:#f1f2fb;text-shadow:0 1px 10px rgba(0,0,0,.5);margin-bottom:1.6rem;max-width:560px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:1.7rem}
.hero-badge{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
  backdrop-filter:blur(4px);padding:7px 14px;border-radius:30px;font-size:.85rem;font-weight:600;font-family:var(--font-head)}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px}
@media(max-width:760px){
  .hero h1{font-size:1.95rem}
  .hero-inner{padding:46px 0 50px}
  .hero .lede{display:none}
}

/* page hero (subpages, shorter) */
.page-hero{position:relative;color:#fff;background:var(--blue-dark);overflow:hidden}
.page-hero .hero-bg{opacity:1}
.page-hero::after{content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(115deg,rgba(33,30,99,.62),rgba(28,30,46,.34))}
.page-hero-inner{position:relative;z-index:2;padding:52px 0 56px;max-width:720px}
.page-hero h1{color:#fff;text-shadow:0 2px 14px rgba(0,0,0,.4)}
.page-hero p{color:#eef0fb;text-shadow:0 1px 8px rgba(0,0,0,.4);margin-bottom:0}
@media(max-width:760px){.page-hero-inner{padding:34px 0 36px}}

/* breadcrumb */
.crumb{font-size:.84rem;color:var(--muted);padding:14px 0 0}
.crumb a{color:var(--slate)}
.crumb a:hover{color:var(--orange)}

/* =========================================================
   KEY STATS STRIP
   ========================================================= */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;box-shadow:var(--shadow-sm)}
.stat{padding:20px 18px;text-align:center;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat .num{font-family:var(--font-head);font-size:1.5rem;font-weight:700;color:var(--blue);line-height:1.1}
.stat .lbl{font-size:.82rem;color:var(--muted);margin-top:4px;text-transform:uppercase;letter-spacing:.06em}
@media(max-width:680px){
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line)}
}

/* =========================================================
   CARDS / GRIDS
   ========================================================= */
.grid{display:grid;gap:18px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}

.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm);transition:.18s}
.card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.card .ic{width:42px;height:42px;border-radius:10px;background:var(--bg-blue-soft);color:var(--blue);display:flex;align-items:center;justify-content:center;margin-bottom:12px;font-size:1.3rem}
.card h3{margin-bottom:.35em}
.card p{margin-bottom:0;font-size:.96rem;color:var(--slate)}

.split{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center}
@media(max-width:820px){.split{grid-template-columns:1fr;gap:22px}}
.split img{border-radius:var(--radius);box-shadow:var(--shadow);width:100%}
.dev-logo-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:30px 28px;display:flex;align-items:center;justify-content:center}
.dev-logo-wrap img{width:100%;max-width:300px;height:auto;border-radius:0;box-shadow:none}

/* =========================================================
   FACT / SPEC BOX — single-column rows (brief §3a)
   ========================================================= */
.facts{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;box-shadow:var(--shadow-sm)}
.facts .row{display:flex;justify-content:space-between;gap:18px;padding:13px 18px;border-bottom:1px solid var(--line)}
.facts .row:last-child{border-bottom:0}
.facts .row:nth-child(even){background:var(--bg-soft)}
.facts .row .k{font-weight:600;color:var(--slate);flex:0 0 auto}
.facts .row .v{text-align:right;color:var(--ink);font-weight:600}

/* =========================================================
   TABLES
   ========================================================= */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm)}
table{width:100%;border-collapse:collapse;background:#fff;min-width:520px}
th,td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line);font-size:.96rem}
th{background:var(--blue);color:#fff;font-family:var(--font-head);font-weight:600;font-size:.9rem}
tr:nth-child(even) td{background:var(--bg-soft)}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}

/* =========================================================
   IMAGE / LIGHTBOX
   ========================================================= */
.figure{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;box-shadow:var(--shadow-sm);cursor:zoom-in;position:relative}
.figure img{width:100%;display:block;transition:.25s}
.figure:hover img{transform:scale(1.02)}
.figure .cap{padding:10px 14px;font-size:.88rem;color:var(--muted);border-top:1px solid var(--line);background:#fff}
.figure .zoom{position:absolute;top:10px;right:10px;background:rgba(28,30,46,.7);color:#fff;border-radius:6px;font-size:.72rem;padding:4px 8px;font-family:var(--font-head)}

#lightbox{position:fixed;inset:0;background:rgba(15,16,26,.92);z-index:200;display:none;align-items:center;justify-content:center;padding:24px;cursor:zoom-out}
#lightbox.open{display:flex}
#lightbox img{max-width:96%;max-height:92%;border-radius:8px;box-shadow:0 20px 60px rgba(0,0,0,.5)}
#lightbox .x{position:absolute;top:18px;right:24px;color:#fff;font-size:2rem;cursor:pointer;line-height:1;font-family:var(--font-head)}

/* =========================================================
   FAQ accordion
   ========================================================= */
.faq details{border:1px solid var(--line);border-radius:10px;margin-bottom:10px;background:#fff;overflow:hidden;box-shadow:var(--shadow-sm)}
.faq summary{cursor:pointer;padding:16px 20px;font-family:var(--font-head);font-weight:600;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:14px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--orange);font-size:1.4rem;font-weight:700;transition:.2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .ans{padding:0 20px 18px;color:var(--slate)}
.faq .ans p:last-child{margin-bottom:0}

/* =========================================================
   FORMS
   ========================================================= */
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.field{margin-bottom:15px}
.field label{display:block;font-family:var(--font-head);font-weight:600;font-size:.9rem;margin-bottom:6px}
.field .req{color:var(--orange)}
.field input,.field select,.field textarea{
  width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:8px;font-family:var(--font-body);
  font-size:1rem;background:#fff;color:var(--ink);transition:.15s
}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(46,42,138,.12)}
.field textarea{resize:vertical;min-height:90px}
.grid-form{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}
@media(max-width:560px){.grid-form{grid-template-columns:1fr}}

/* consent block — single flex row, label flows as one span (brief §9) */
.consent{display:flex;align-items:flex-start;gap:10px;margin:6px 0 16px}
.consent input[type=checkbox]{flex:0 0 18px;width:18px;height:18px;margin-top:3px}
.consent span{font-size:.88rem;color:var(--slate);line-height:1.5}
.consent a{text-decoration:underline}
.form-msg{display:none;padding:12px 15px;border-radius:8px;margin-top:14px;font-size:.95rem}
.form-msg.ok{display:block;background:#e7f6ec;color:#1c6b3a;border:1px solid #bce4cb}
.form-msg.err{display:block;background:#fdecec;color:#a32626;border:1px solid #f4c4c4}

/* =========================================================
   CTA band
   ========================================================= */
.cta-band{background:linear-gradient(115deg,var(--blue),var(--blue-dark));color:#fff;border-radius:16px;padding:34px;text-align:center}
.cta-band h2{color:#fff}
.cta-band p{color:#dfe1f5;max-width:560px;margin:0 auto 18px}
.cta-band .btn-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* =========================================================
   FOOTER (brief §6) — 4-col → 2 → 1
   ========================================================= */
.site-footer{background:var(--charcoal);color:#c7cad8;padding:42px 0 0;font-size:.93rem}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:30px}
@media(max-width:860px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.footer-grid{grid-template-columns:1fr}}
.footer-grid h4{color:#fff;font-size:.92rem;text-transform:uppercase;letter-spacing:.08em;margin-bottom:14px}
.footer-grid a{color:#c7cad8;display:block;padding:4px 0}
.footer-grid a:hover{color:var(--orange)}
.footer-logo img{height:38px;margin-bottom:14px}
.footer-intro p{color:#a8acbd;font-size:.9rem}
.footer-contact div{margin-bottom:10px;line-height:1.5}
.footer-contact .lbl{display:block;color:#878ca0;font-size:.78rem;text-transform:uppercase;letter-spacing:.05em}
.footer-disclaimer{border-top:1px solid rgba(255,255,255,.12);margin-top:30px;padding:18px 0;color:#878ca0;font-size:.8rem;line-height:1.55}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:16px 0;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:.84rem;color:#9097aa}
.footer-bottom a{color:#c7cad8}
.footer-bottom a:hover{color:var(--orange)}
.footer-bottom .links a{display:inline;padding:0}
.footer-bottom .links span{margin:0 8px;color:#555a70}

/* =========================================================
   STICKY MOBILE CTA BAR
   ========================================================= */
.sticky-cta{position:fixed;left:0;right:0;bottom:0;z-index:80;background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -4px 20px rgba(28,30,46,.12);padding:8px 12px;display:none;gap:8px}
.sticky-cta .btn{flex:1;justify-content:center;padding:12px 8px;font-size:.92rem}
@media(max-width:760px){.sticky-cta{display:flex}body{padding-bottom:70px}}

/* utilities */
.mt0{margin-top:0}.mb0{margin-bottom:0}
.pill{display:inline-block;background:var(--bg-blue-soft);color:var(--blue);font-family:var(--font-head);font-weight:600;font-size:.78rem;padding:4px 11px;border-radius:20px;margin-bottom:10px}
.note{background:#fff8ee;border:1px solid #f3dcb6;border-left:3px solid var(--orange);border-radius:8px;padding:14px 16px;font-size:.92rem;color:#7a5a2b}
.checklist{list-style:none;padding:0;margin:0}
.checklist li{padding:7px 0 7px 30px;position:relative;color:var(--slate)}
.checklist li::before{content:"";position:absolute;left:0;top:11px;width:16px;height:9px;border-left:2.5px solid var(--orange);border-bottom:2.5px solid var(--orange);transform:rotate(-45deg)}

/* reveal animation */
.reveal{opacity:0;transform:translateY(16px);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}}