/* ============================================================
   ID Tech Studio — site styles
   Brand: navy #0A2540 · electric blue #0066FF · white
   ============================================================ */
:root{
  --navy:#0A2540; --navy-2:#12243F; --blue:#0066FF; --blue-600:#0052cc;
  --ink:#0F1B2D; --slate:#52617A; --muted:#7C8AA0;
  --light:#F4F8FE; --light-2:#EAF1FB; --line:#E4EAF2; --white:#fff;
  --radius:16px; --radius-sm:10px; --maxw:1180px;
  --shadow:0 1px 2px rgba(10,37,64,.04),0 12px 32px rgba(10,37,64,.07);
  --shadow-lg:0 24px 60px rgba(10,37,64,.14);
  --font:'Geist','Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font); color:var(--ink); background:var(--white);
  line-height:1.6; -webkit-font-smoothing:antialiased; font-size:17px;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ---------- typography ---------- */
h1,h2,h3,h4{line-height:1.12;letter-spacing:-.02em;color:var(--navy);font-weight:700}
h1{font-size:clamp(2.4rem,5vw,4rem)}
h2{font-size:clamp(1.9rem,3.4vw,2.85rem)}
h3{font-size:1.3rem;letter-spacing:-.01em}
p{color:var(--slate)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:.78rem;font-weight:600;
  letter-spacing:.16em;text-transform:uppercase;color:var(--blue);margin-bottom:18px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--blue);border-radius:2px}
.lead{font-size:clamp(1.05rem,1.6vw,1.28rem);color:var(--slate);max-width:60ch}
.section{padding:96px 0}
.section--tight{padding:64px 0}
.section--light{background:var(--light)}
.center{text-align:center}
.center .lead{margin-left:auto;margin-right:auto}
.sec-head{max-width:62ch}
.sec-head.center{margin:0 auto}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;font-weight:600;font-size:.98rem;
  padding:14px 26px;border-radius:999px;border:1.5px solid transparent;cursor:pointer;
  transition:.2s ease;white-space:nowrap;
}
.btn--primary{background:var(--blue);color:#fff;box-shadow:0 8px 20px rgba(0,102,255,.28)}
.btn--primary:hover{background:var(--blue-600);transform:translateY(-2px);box-shadow:0 12px 26px rgba(0,102,255,.34)}
.btn--ghost{background:transparent;color:var(--navy);border-color:var(--line)}
.btn--ghost:hover{border-color:var(--navy);background:var(--light)}
.btn--light{background:#fff;color:var(--navy)}
.btn--light:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn--lg{padding:16px 32px;font-size:1.05rem}
.btn .arrow{transition:transform .2s}
.btn:hover .arrow{transform:translateX(4px)}
.btn-row{display:flex;gap:14px;flex-wrap:wrap;align-items:center}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.85);
  backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:11px;color:var(--navy)}
.brand .mark{height:34px;width:auto}
.brand-name{font-weight:600;letter-spacing:.14em;font-size:.95rem;text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:30px;list-style:none}
.nav-links a{font-size:.95rem;font-weight:500;color:var(--navy-2);position:relative;padding:6px 0}
.nav-links a:hover{color:var(--blue)}
.nav-links a.active{color:var(--blue)}
.nav-links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--blue);border-radius:2px}
.nav-cta{display:flex;align-items:center;gap:14px}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--navy);margin:5px 0;border-radius:2px;transition:.25s}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:
  radial-gradient(900px 480px at 88% -8%,rgba(0,102,255,.12),transparent 60%),
  radial-gradient(700px 420px at 8% 8%,rgba(10,37,64,.05),transparent 55%),#fff;}
.hero .container{padding-top:96px;padding-bottom:96px}
.hero h1{max-width:16ch}
.hero .lead{margin-top:22px}
.hero .btn-row{margin-top:34px}
.hero-meta{margin-top:46px;display:flex;gap:34px;flex-wrap:wrap;color:var(--muted);font-size:.86rem;font-weight:500}
.hero-meta b{color:var(--navy);font-weight:700;font-size:1.6rem;display:block;letter-spacing:-.02em}

/* ---------- grid / cards ---------- */
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px;
  transition:.22s ease;height:100%;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d7e2f2}
.card .ico{
  width:50px;height:50px;border-radius:12px;display:grid;place-items:center;margin-bottom:20px;
  background:var(--light-2);color:var(--blue);
}
.card .ico svg{width:26px;height:26px}
.card h3{margin-bottom:10px}
.card p{font-size:.98rem}
.card .more{display:inline-flex;gap:6px;align-items:center;color:var(--blue);font-weight:600;font-size:.92rem;margin-top:16px}
.card--navy{background:var(--navy);border-color:var(--navy)}
.card--navy h3,.card--navy p{color:#fff}
.card--navy p{color:#b9c6da}

/* number/list cards */
.steps{counter-reset:step}
.step{position:relative;padding-left:0}
.step .num{font-size:.85rem;font-weight:700;color:var(--blue);letter-spacing:.1em}
.step h3{margin:10px 0 8px}

/* split feature */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.split.reverse .split-media{order:2}
.media-panel{
  border-radius:var(--radius);background:linear-gradient(160deg,#0A2540,#15315a);
  min-height:340px;position:relative;overflow:hidden;
  box-shadow:var(--shadow);display:grid;place-items:center;
}
.media-panel .glyph{width:46%;opacity:.96}
.media-panel.light{background:var(--light)}
.checks{list-style:none;margin-top:22px;display:grid;gap:14px}
.checks li{display:flex;gap:12px;align-items:flex-start;color:var(--navy-2);font-weight:500}
.checks li::before{content:"";flex:0 0 22px;height:22px;margin-top:2px;border-radius:50%;
  background:var(--light-2) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%230066FF' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/14px no-repeat;}

/* stats band */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stat b{display:block;font-size:clamp(2rem,4vw,3rem);color:var(--navy);letter-spacing:-.03em;font-weight:800}
.stat span{color:var(--muted);font-size:.92rem;font-weight:500}

/* pill list / tags */
.tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.tag{padding:8px 16px;border:1px solid var(--line);border-radius:999px;font-size:.86rem;font-weight:500;color:var(--navy-2);background:#fff}

/* ---------- CTA band ---------- */
.cta-band{background:
  radial-gradient(700px 360px at 85% 10%,rgba(0,102,255,.32),transparent 60%),var(--navy);
  color:#fff;border-radius:24px;padding:64px;text-align:center;position:relative;overflow:hidden}
.cta-band h2{color:#fff;max-width:20ch;margin:0 auto}
.cta-band p{color:#c2cee0;margin:16px auto 30px;max-width:54ch}

/* ---------- case study list ---------- */
.case{display:grid;grid-template-columns:1.1fr 1fr;gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;transition:.22s}
.case:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.case-media{background:linear-gradient(160deg,#0A2540,#15315a);min-height:280px;display:grid;place-items:center;padding:32px}
.case-media.alt{background:linear-gradient(160deg,#0052cc,#2b8bff)}
.case-media .glyph{width:38%}
.case-body{padding:38px}
.case-body .kicker{font-size:.78rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--blue)}
.case-body h3{font-size:1.5rem;margin:12px 0 12px}
.case-metrics{display:flex;gap:28px;margin-top:22px;flex-wrap:wrap}
.case-metrics b{display:block;font-size:1.7rem;color:var(--navy);font-weight:800;letter-spacing:-.02em}
.case-metrics span{font-size:.82rem;color:var(--muted)}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.form{display:grid;gap:18px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px;box-shadow:var(--shadow)}
.field{display:grid;gap:7px}
.field label{font-size:.85rem;font-weight:600;color:var(--navy-2)}
.field input,.field textarea,.field select{
  font-family:inherit;font-size:1rem;padding:13px 15px;border:1.5px solid var(--line);
  border-radius:var(--radius-sm);background:var(--light);color:var(--ink);transition:.18s;width:100%;
}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--blue);background:#fff;box-shadow:0 0 0 4px rgba(0,102,255,.1)}
.field.row{grid-template-columns:1fr 1fr;gap:18px}
.info-block{display:grid;gap:26px}
.info-item{display:flex;gap:16px;align-items:flex-start}
.info-item .ico{flex:0 0 46px;height:46px;border-radius:12px;background:var(--light-2);color:var(--blue);display:grid;place-items:center}
.info-item h4{color:var(--navy);font-size:1.02rem;margin-bottom:3px}
.info-item p{font-size:.96rem}

/* ---------- footer ---------- */
.site-footer{background:var(--navy);color:#c2cee0;padding:72px 0 32px}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.1)}
.site-footer .brand{color:#fff;margin-bottom:18px}
.site-footer .brand .mark{height:32px}
.footer-about p{color:#9fb0c8;font-size:.96rem;max-width:34ch}
.footer-col h5{color:#fff;font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:16px}
.footer-col a{display:block;color:#9fb0c8;font-size:.95rem;padding:6px 0;transition:.15s}
.footer-col a:hover{color:#fff;padding-left:3px}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;padding-top:26px;font-size:.86rem;color:#7e91ac}

/* ---------- misc ---------- */
.divider{height:1px;background:var(--line);border:0;margin:0}
.mt-0{margin-top:0}.mb-0{margin-bottom:0}
.fade{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.fade.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media(max-width:980px){
  .nav-links,.nav-cta .btn{display:none}
  .nav-toggle{display:block}
  .nav-links.open{display:flex;position:absolute;top:74px;left:0;right:0;flex-direction:column;
    background:#fff;border-bottom:1px solid var(--line);padding:18px 24px;gap:6px;box-shadow:var(--shadow)}
  .nav-links.open a{padding:12px 0;border-bottom:1px solid var(--light)}
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .split,.contact-grid{grid-template-columns:1fr;gap:40px}
  .split.reverse .split-media{order:0}
  .case{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:repeat(2,1fr);gap:32px 16px}
  .cta-band{padding:48px 28px}
}
@media(max-width:560px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .field.row{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .section{padding:68px 0}
  .brand-name{display:none}
}