@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@400;500;600;700&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root{
  --bg:#f4f6fa;
  --bg-alt:#ffffff;
  --navy:#0e2148;
  --navy-2:#16305e;
  --blue:#2f7cd6;
  --blue-dim:#e5eefb;
  --blue-line:#a9c8ee;
  --ink:#131c2e;
  --steel:#4d5768;
  --steel-dim:#8791a1;
  --border:#e2e7ef;
  --border-strong:#cfd7e3;
  --radius:14px;
  --shadow:0 2px 4px rgba(14,33,72,0.05), 0 12px 28px rgba(14,33,72,0.06);
}
*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:'Inter', sans-serif;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%; display:block;}
a{color:inherit; text-decoration:none;}
ul{list-style:none;}
.mono{font-family:'IBM Plex Mono', monospace;}
.wrap{max-width:1200px; margin:0 auto; padding:0 32px;}
h1,h2,h3,h4{
  font-family:'Oswald', sans-serif;
  text-transform:uppercase;
  letter-spacing:0.02em;
  font-weight:600;
  line-height:1.1;
  color:var(--navy);
}
.eyebrow{
  font-family:'IBM Plex Mono', monospace;
  font-size:12.5px;
  letter-spacing:0.18em;
  text-transform:uppercase;
  color:var(--blue);
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:18px;
}
.eyebrow::before{ content:""; width:22px; height:1px; background:var(--blue-line); }
.eyebrow .idx{ color:var(--steel-dim); }

/* blueprint grid backdrop */
.grid-bg{ position:relative; }
.grid-bg::before{
  content:"";
  position:absolute; inset:0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size:44px 44px;
  -webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 90%);
  mask-image:radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 90%);
  pointer-events:none;
  opacity:0.9;
}

/* ---------- NAV ---------- */
header{
  position:fixed; top:0; left:0; right:0; z-index:100;
  background:rgba(244,246,250,0.82);
  backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .3s ease, background .3s ease, box-shadow .3s ease;
}
header.scrolled{
  background:rgba(255,255,255,0.94);
  border-bottom:1px solid var(--border);
  box-shadow:0 4px 20px rgba(14,33,72,0.05);
}
nav{
  display:flex; align-items:center; justify-content:space-between;
  padding:18px 32px; max-width:1200px; margin:0 auto;
}
.brand{ display:flex; align-items:center; gap:12px; }
.brand .mark{ width:38px; height:38px; }
.brand-text{ font-family:'Oswald', sans-serif; font-weight:600; letter-spacing:0.04em; font-size:17px; line-height:1.15; color:var(--navy);}
.brand-text span{ display:block; font-family:'IBM Plex Mono', monospace; font-size:9.5px; letter-spacing:0.2em; color:var(--steel-dim); text-transform:uppercase; font-weight:400;}
.nav-links{ display:flex; align-items:center; gap:34px; }
.nav-links a{
  font-size:13px; letter-spacing:0.06em; text-transform:uppercase; color:var(--steel);
  font-weight:500; position:relative; padding:4px 0;
  transition:color .2s ease;
}
.nav-links a:hover, .nav-links a.active{ color:var(--navy); }
.nav-links a::after{
  content:""; position:absolute; left:0; bottom:0; width:0; height:2px; background:var(--blue);
  transition:width .25s ease;
}
.nav-links a:hover::after, .nav-links a.active::after{ width:100%; }
.btn{
  display:inline-flex; align-items:center; gap:8px;
  font-family:'IBM Plex Mono', monospace;
  font-size:12.5px; letter-spacing:0.08em; text-transform:uppercase;
  padding:12px 22px; border-radius:4px; font-weight:500;
  border:1px solid transparent; cursor:pointer;
  transition:all .2s ease;
}
.btn-primary{ background:var(--navy); color:#fff; border-color:var(--navy); }
.btn-primary:hover{ background:var(--blue); border-color:var(--blue); transform:translateY(-1px); box-shadow:0 8px 20px rgba(47,124,214,0.28); }
.btn-ghost{ border-color:var(--border-strong); color:var(--navy); }
.btn-ghost:hover{ border-color:var(--blue); color:var(--blue); background:var(--blue-dim); }
.nav-cta{ display:flex; align-items:center; gap:16px; }

/* Mobile toggle button */
.nav-toggle{
  display:none; background:none; border:none; cursor:pointer;
  padding:8px; flex-direction:column; justify-content:center; gap:5px;
  z-index:101; border-radius:4px;
}
.nav-toggle:focus-visible{ outline:2px solid var(--blue); }
.nav-toggle span{
  display:block; width:22px; height:2px; background:var(--navy);
  border-radius:2px; transition:transform 0.3s ease, opacity 0.3s ease;
}
.nav-toggle.open span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2){ opacity:0; }
.nav-toggle.open span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

.form-success{
  background:#e6f4ea; border:1px solid #a8dab5; color:#137333;
  padding:14px 18px; border-radius:6px; font-size:13.5px;
  margin-top:14px; display:flex; align-items:center; gap:10px;
  animation:fadeIn 0.3s ease;
}
@keyframes fadeIn{ from{ opacity:0; transform:translateY(6px); } to{ opacity:1; transform:translateY(0); } }

/* Focus outlines for accessibility */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible{
  outline:2px solid var(--blue); outline-offset:2px;
}

/* ---------- PAGE HERO (interior pages) ---------- */
.page-hero{ padding:170px 0 70px; }
.page-hero .eyebrow{ margin-bottom:14px; }
.page-hero h1{ font-size:clamp(32px,4.4vw,52px); margin-bottom:16px; }
.page-hero p{ color:var(--steel); font-size:16px; max-width:600px; }

/* ---------- HOME HERO ---------- */
.hero{ padding:170px 0 100px; position:relative; }
.hero .wrap{ display:grid; grid-template-columns:1.05fr 0.95fr; gap:50px; align-items:center; }
.hero h1{ font-size:clamp(36px,5vw,60px); margin-bottom:22px; }
.hero h1 em{ font-style:normal; color:var(--blue); }
.hero p.lede{ font-size:17px; color:var(--steel); max-width:480px; margin-bottom:36px; }
.hero-ctas{ display:flex; gap:14px; margin-bottom:48px; flex-wrap:wrap; }
.hero-tags{ display:flex; gap:28px; flex-wrap:wrap; }
.hero-tag{ display:flex; align-items:center; gap:9px; font-size:12.5px; color:var(--steel-dim); font-family:'IBM Plex Mono',monospace; letter-spacing:0.03em; }
.hero-tag .dot{ width:6px; height:6px; border-radius:50%; background:var(--blue); flex:none; }

/* ---------- DATA PLATE (signature element) ---------- */
.plate{
  position:relative;
  background:var(--bg-alt);
  border:1px solid var(--border-strong);
  border-radius:var(--radius);
  padding:26px;
  box-shadow:var(--shadow);
}
.plate .rivet-b1,.plate .rivet-b2,.plate::before,.plate::after{
  content:""; position:absolute; width:7px; height:7px; border-radius:50%;
  background:radial-gradient(circle at 35% 35%, #ffffff, #b7c0cd);
  box-shadow:inset 0 0 0 1px rgba(14,33,72,0.2);
}
.plate::before{ top:12px; left:12px; }
.plate::after{ top:12px; right:12px; }
.plate .rivet-b1{ bottom:12px; left:12px; }
.plate .rivet-b2{ bottom:12px; right:12px; }

.hero-art{ position:relative; }
.hero-art .plate{ padding:0; overflow:hidden; }
.hero-art svg{ width:100%; height:auto; display:block; }
.hero-art .caption{
  display:flex; justify-content:space-between; align-items:center;
  padding:16px 26px; border-top:1px solid var(--border);
  font-family:'IBM Plex Mono',monospace; font-size:11px; letter-spacing:0.08em; color:var(--steel-dim); text-transform:uppercase;
}
.hero-art .caption b{ color:var(--blue); font-weight:500; }

/* ---------- STAT STRIP ---------- */
.stats{ padding:0 0 90px; }
.stat-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:18px; }
.stat-card{ position:relative; background:var(--bg-alt); border:1px solid var(--border); border-radius:var(--radius); padding:26px 22px; box-shadow:var(--shadow); }
.stat-card .rivet-b1,.stat-card .rivet-b2,.stat-card::before,.stat-card::after{
  content:""; position:absolute; width:6px; height:6px; border-radius:50%;
  background:radial-gradient(circle at 35% 35%, #ffffff, #b7c0cd);
}
.stat-card::before{ top:10px; left:10px; }
.stat-card::after{ top:10px; right:10px; }
.stat-card .rivet-b1{ bottom:10px; left:10px; }
.stat-card .rivet-b2{ bottom:10px; right:10px; }
.stat-num{ font-family:'Oswald',sans-serif; font-size:40px; font-weight:600; color:var(--blue); line-height:1; }
.stat-label{ margin-top:10px; font-family:'IBM Plex Mono',monospace; font-size:11.5px; letter-spacing:0.08em; text-transform:uppercase; color:var(--ink); }
.stat-sub{ font-size:11px; color:var(--steel-dim); margin-top:4px; font-family:'IBM Plex Mono',monospace; }

/* ---------- SECTION generic ---------- */
section{ padding:100px 0; position:relative; }
.section-head{ max-width:640px; margin-bottom:56px; }
.section-head h2{ font-size:clamp(28px,3.4vw,42px); }
.section-head p{ color:var(--steel); font-size:15.5px; margin-top:16px; max-width:560px; }
.alt{ background:var(--bg-alt); border-top:1px solid var(--border); border-bottom:1px solid var(--border); }

/* ---------- ABOUT ---------- */
.about-grid{ display:grid; grid-template-columns:1fr 1fr; gap:64px; align-items:start; }
.about-copy p{ color:var(--steel); font-size:15.5px; margin-bottom:18px; }
.about-copy p strong{ color:var(--navy); font-weight:600; }
.fact-list{ margin-top:34px; display:flex; flex-direction:column; border-top:1px solid var(--border); }
.fact-row{ display:flex; justify-content:space-between; align-items:center; padding:16px 0; border-bottom:1px solid var(--border); }
.fact-row .k{ font-family:'IBM Plex Mono',monospace; font-size:11.5px; letter-spacing:0.08em; text-transform:uppercase; color:var(--steel-dim); }
.fact-row .v{ font-weight:600; font-size:15px; color:var(--navy); text-align:right; }

.about-visual{ position:sticky; top:110px; }
.about-visual .plate{ padding:26px; }
.about-visual svg{ width:100%; height:auto; }

/* ---------- CAPABILITIES ---------- */
.cap-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:18px; margin-bottom:56px; }
.cap-card{ background:var(--bg-alt); border:1px solid var(--border); border-radius:var(--radius); padding:28px 22px; transition:border-color .2s ease, transform .2s ease; box-shadow:var(--shadow); }
.cap-card:hover{ border-color:var(--blue); transform:translateY(-3px); }
.cap-num{ font-family:'Oswald',sans-serif; font-size:34px; color:var(--navy); font-weight:600; }
.cap-num .unit{ font-size:16px; color:var(--blue); margin-left:4px; font-family:'IBM Plex Mono',monospace; }
.cap-name{ font-family:'IBM Plex Mono',monospace; font-size:11.5px; letter-spacing:0.07em; text-transform:uppercase; color:var(--steel); margin-top:10px; }
.cap-note{ font-size:12px; color:var(--steel-dim); margin-top:6px; }
.cap-banner{
  background:var(--navy);
  border-radius:var(--radius);
  padding:26px 30px; display:flex; gap:36px; flex-wrap:wrap; justify-content:space-between; align-items:center;
}
.cap-banner .item{ display:flex; align-items:center; gap:10px; font-family:'IBM Plex Mono',monospace; font-size:12.5px; letter-spacing:0.06em; text-transform:uppercase; color:#fff; }
.cap-banner .item .ico{ color:#6fa8ea; font-size:15px; }

/* ---------- PRODUCTS ---------- */
.prod-tabs{ display:flex; gap:10px; margin-bottom:40px; flex-wrap:wrap; border-bottom:1px solid var(--border); }
.prod-tab{
  font-family:'IBM Plex Mono',monospace; font-size:12.5px; letter-spacing:0.06em; text-transform:uppercase;
  padding:14px 4px; margin-right:26px; color:var(--steel-dim); cursor:pointer; position:relative; background:none; border:none;
}
.prod-tab.active{ color:var(--navy); }
.prod-tab.active::after{ content:""; position:absolute; left:0; right:0; bottom:-1px; height:2px; background:var(--blue); }
.prod-panel{ display:none; }
.prod-panel.active{ display:grid; grid-template-columns:0.9fr 1.1fr; gap:56px; align-items:center; }
.prod-art .plate{ padding:20px; }
.prod-art svg{ width:100%; height:auto; }
.prod-copy h3{ font-size:26px; margin-bottom:16px; }
.prod-copy > p{ color:var(--steel); font-size:15px; margin-bottom:26px; max-width:480px; }
.feat-grid{ display:grid; grid-template-columns:1fr 1fr; gap:12px 20px; }
.feat-item{ display:flex; align-items:flex-start; gap:10px; font-size:14px; color:var(--ink); }
.feat-item .tick{ color:var(--blue); font-family:'IBM Plex Mono',monospace; flex:none; margin-top:2px; }

/* ---------- WHY CHOOSE ---------- */
.why-grid{ display:grid; grid-template-columns:repeat(5,1fr); gap:16px; }
.why-card{ background:var(--bg-alt); border:1px solid var(--border); border-radius:var(--radius); padding:26px 20px; text-align:left; box-shadow:var(--shadow); }
.why-idx{ font-family:'IBM Plex Mono',monospace; font-size:11px; color:var(--blue); margin-bottom:16px; }
.why-card h4{ font-size:15px; letter-spacing:0.02em; margin-bottom:10px; color:var(--navy); }
.why-card p{ font-size:13px; color:var(--steel-dim); line-height:1.55; text-transform:none; font-family:'Inter',sans-serif; }

/* ---------- PROCESS ---------- */
.proc-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:0; position:relative; }
.proc-grid::before{
  content:""; position:absolute; top:19px; left:6%; right:6%; height:1px;
  background:repeating-linear-gradient(90deg, var(--border-strong) 0 8px, transparent 8px 16px);
}
.proc-step{ padding:0 18px; position:relative; }
.proc-dot{
  width:38px; height:38px; border-radius:50%; background:var(--bg-alt); border:1px solid var(--blue);
  display:flex; align-items:center; justify-content:center; font-family:'IBM Plex Mono',monospace; color:var(--blue);
  font-size:13px; margin-bottom:22px; position:relative; z-index:2;
}
.proc-step h4{ font-size:15px; margin-bottom:8px; letter-spacing:0.02em; }
.proc-step p{ font-size:13.5px; color:var(--steel-dim); text-transform:none; font-family:'Inter',sans-serif; }

/* ---------- CONTACT ---------- */
.contact-grid{ display:grid; grid-template-columns:0.9fr 1.1fr; gap:60px; }
.contact-info h3{ font-size:22px; margin-bottom:22px; }
.info-row{ display:flex; gap:14px; padding:18px 0; border-bottom:1px solid var(--border); }
.info-row .ico{ color:var(--blue); font-family:'IBM Plex Mono',monospace; font-size:15px; flex:none; width:22px; }
.info-row .k{ font-family:'IBM Plex Mono',monospace; font-size:10.5px; letter-spacing:0.1em; text-transform:uppercase; color:var(--steel-dim); margin-bottom:4px; }
.info-row .v{ color:var(--ink); font-size:14.5px; }
.info-row a.v:hover{ color:var(--blue); }

form.quote{ background:var(--bg-alt); border:1px solid var(--border); border-radius:var(--radius); padding:34px; box-shadow:var(--shadow); }
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:16px; margin-bottom:16px; }
.form-field{ display:flex; flex-direction:column; gap:8px; }
.form-field.full{ grid-column:1/-1; }
label{ font-family:'IBM Plex Mono',monospace; font-size:10.5px; letter-spacing:0.09em; text-transform:uppercase; color:var(--steel-dim); }
input,select,textarea{
  background:var(--bg); border:1px solid var(--border-strong); border-radius:4px; padding:12px 14px;
  color:var(--ink); font-family:'Inter',sans-serif; font-size:14px; outline:none;
  transition:border-color .2s ease;
}
input:focus,select:focus,textarea:focus{ border-color:var(--blue); }
textarea{ resize:vertical; min-height:90px; }
form.quote .btn-primary{ width:100%; justify-content:center; margin-top:6px; padding:14px; font-size:13px; }
.form-note{ font-size:11.5px; color:var(--steel-dim); margin-top:14px; font-family:'IBM Plex Mono',monospace; text-align:center; }

/* ---------- HOME TEASERS ---------- */
.teaser-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:20px; }
.teaser-card{
  background:var(--bg-alt); border:1px solid var(--border); border-radius:var(--radius);
  padding:30px 24px; box-shadow:var(--shadow); transition:transform .2s ease, border-color .2s ease;
  display:flex; flex-direction:column;
}
.teaser-card:hover{ transform:translateY(-4px); border-color:var(--blue); }
.teaser-card .plate{ padding:14px; margin-bottom:20px; box-shadow:none; border-color:var(--border);}
.teaser-card h4{ font-size:18px; margin-bottom:10px; }
.teaser-card p{ font-size:13.5px; color:var(--steel); text-transform:none; font-family:'Inter',sans-serif; margin-bottom:16px; flex:1; }
.teaser-card .link{ font-family:'IBM Plex Mono',monospace; font-size:12px; letter-spacing:0.06em; text-transform:uppercase; color:var(--blue); }

.cta-band{ background:var(--navy); text-align:center; padding:90px 0; }
.cta-band h2{ color:#fff; font-size:clamp(28px,3.6vw,44px); margin-bottom:16px; }
.cta-band p{ color:#b9c6de; font-size:15.5px; margin-bottom:34px; }
.cta-band .btn-primary{ background:var(--blue); border-color:var(--blue); }
.cta-band .btn-primary:hover{ background:#4a8fe0; }
.cta-band .btn-ghost{ border-color:#3a537c; color:#fff; }
.cta-band .btn-ghost:hover{ border-color:var(--blue); color:var(--blue); background:transparent; }

/* ---------- FOOTER ---------- */
footer{ border-top:1px solid var(--border); padding:50px 0 30px; background:var(--bg-alt); }
.foot-grid{ display:flex; justify-content:space-between; align-items:flex-start; flex-wrap:wrap; gap:30px; margin-bottom:40px; }
.foot-brand .brand-text{ margin-bottom:14px; }
.foot-brand p{ color:var(--steel-dim); font-size:13px; max-width:280px; }
.foot-links{ display:flex; gap:60px; flex-wrap:wrap; }
.foot-col h5{ font-family:'IBM Plex Mono',monospace; font-size:11px; letter-spacing:0.1em; text-transform:uppercase; color:var(--steel-dim); margin-bottom:16px; }
.foot-col a,.foot-col span{ display:block; font-size:13.5px; color:var(--steel); margin-bottom:10px; }
.foot-col a:hover{ color:var(--blue); }
.foot-bottom{ display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px; padding-top:24px; border-top:1px solid var(--border); font-family:'IBM Plex Mono',monospace; font-size:11px; color:var(--steel-dim); letter-spacing:0.03em; }

/* ---------- REVEAL ---------- */
.reveal{ opacity:0; transform:translateY(24px); transition:opacity .7s ease, transform .7s ease; }
.reveal.in{ opacity:1; transform:translateY(0); }

@media (prefers-reduced-motion: reduce){
  .reveal{ opacity:1; transform:none; transition:none; }
  html{ scroll-behavior:auto; }
}

/* ---------- RESPONSIVE ---------- */
@media (max-width:980px){
  .hero .wrap{ grid-template-columns:1fr; }
  .hero{ padding-top:150px; }
  .stat-grid{ grid-template-columns:repeat(2,1fr); }
  .about-grid{ grid-template-columns:1fr; }
  .about-visual{ position:static; order:-1; }
  .cap-grid{ grid-template-columns:repeat(2,1fr); }
  .why-grid{ grid-template-columns:repeat(2,1fr); }
  .proc-grid{ grid-template-columns:1fr; gap:28px; }
  .proc-grid::before{ display:none; }
  .prod-panel.active{ grid-template-columns:1fr; }
  .contact-grid{ grid-template-columns:1fr; }
  .teaser-grid{ grid-template-columns:repeat(2,1fr); }
  .nav-toggle{ display:flex; }
  .nav-links{
    display:flex;
    position:fixed; top:74px; left:0; right:0;
    background:rgba(255,255,255,0.98); backdrop-filter:blur(16px);
    border-bottom:1px solid var(--border);
    flex-direction:column; align-items:center; gap:20px;
    padding:30px 20px; box-shadow:0 12px 30px rgba(14,33,72,0.1);
    transform:translateY(-120%); opacity:0; visibility:hidden;
    transition:transform .35s ease, opacity .35s ease, visibility .35s ease;
  }
  .nav-links.active{ transform:translateY(0); opacity:1; visibility:visible; }
}
@media (max-width:600px){
  .wrap{ padding:0 20px; }
  .stat-grid{ grid-template-columns:1fr 1fr; }
  .cap-grid{ grid-template-columns:1fr 1fr; }
  .why-grid{ grid-template-columns:1fr; }
  .teaser-grid{ grid-template-columns:1fr; }
  .form-row{ grid-template-columns:1fr; }
  .hero-ctas{ flex-direction:column; align-items:stretch; }
  .foot-grid{ flex-direction:column; }
}

@media (max-width:600px){
  .wrap{ padding:0 20px; }
  .stat-grid{ grid-template-columns:1fr 1fr; }
  .cap-grid{ grid-template-columns:1fr 1fr; }
  .why-grid{ grid-template-columns:1fr; }
  .teaser-grid{ grid-template-columns:1fr; }
  .form-row{ grid-template-columns:1fr; }
  .hero-ctas{ flex-direction:column; align-items:stretch; }
  .foot-grid{ flex-direction:column; }
}