:root {
  --navy: #1E3A8A;
  --sky: #0EA5E9;
  --sky-light: #38BDF8;
  --gold: #FFD700;
  --ink: #0F172A;
  --slate: #334155;
  --muted: #64748B;
  --line: #E2E8F0;
  --bg: #FFFFFF;
  --bg-soft: #F8FAFC;
  --radius: 14px;
  --max: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--slate);
  background: var(--bg);
  line-height: 1.6;
}
img { max-width: 100%; display: block; }
a { color: var(--sky); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { color: var(--ink); line-height: 1.2; margin: 0 0 .5em; }
h1 { font-size: clamp(2rem, 5vw, 3.25rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.25rem); letter-spacing: -0.01em; }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }

.container { max-width: var(--max); margin: 0 auto; padding: 0 20px; }
section { padding: 88px 0; }
.eyebrow {
  display: inline-block;
  font-size: .78rem; font-weight: 700; letter-spacing: .18em; text-transform: uppercase;
  color: var(--sky); margin-bottom: 12px;
}
.lead { font-size: 1.15rem; color: var(--muted); max-width: 640px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); }
.brand:hover { text-decoration: none; }
.brand img { height: 40px; width: auto; }
.brand-text { font-weight: 800; font-size: 1.1rem; line-height: 1.1; }
.brand-text span { color: var(--sky); }
.nav-links { display: flex; gap: 28px; list-style: none; margin: 0; padding: 0; }
.nav-links a { color: var(--slate); font-weight: 600; font-size: .95rem; }
.nav-links a:hover { color: var(--sky); text-decoration: none; }
.nav-toggle { display: none; background: none; border: 0; font-size: 1.6rem; color: var(--ink); cursor: pointer; }

/* Buttons */
.btn {
  display: inline-block; padding: 13px 24px; border-radius: 999px;
  font-weight: 700; font-size: .98rem; transition: transform .15s, box-shadow .15s;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: linear-gradient(135deg, var(--sky-light), var(--navy)); color: #fff; box-shadow: 0 8px 24px rgba(14, 165, 233, .3); }
.btn-ghost { border: 1.5px solid rgba(255, 255, 255, .5); color: #fff; }
.btn-ghost:hover { border-color: #fff; }

/* Hero */
.hero {
  background:
    radial-gradient(1000px 500px at 85% 10%, rgba(56, 189, 248, .25), transparent 60%),
    linear-gradient(160deg, #0B1B4D 0%, var(--navy) 55%, #0C4A6E 100%);
  color: #CBD5E1;
  padding: 120px 0 110px;
  overflow: hidden;
}
.hero-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 48px; align-items: center; }
.hero h1 { color: #fff; }
.hero h1 em { font-style: normal; background: linear-gradient(90deg, var(--sky-light), var(--gold)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .lead { color: #CBD5E1; }
.hero .eyebrow { color: var(--sky-light); }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 28px; }
.hero-certs { margin-top: 28px; display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.hero-certs-title { flex-basis: 100%; font-size: .75rem; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: var(--sky-light); }
.hero-certs a { display: inline-flex; align-items: center; gap: 8px; max-width: 100%; padding: 6px 14px; border-radius: 999px; border: 1px solid rgba(255, 255, 255, .25); background: rgba(255, 255, 255, .08); color: #fff; font-size: .85rem; font-weight: 600; transition: border-color .2s; }
.hero-certs a:hover, .hero-certs a:focus-visible { text-decoration: none; border-color: var(--sky-light); }
.hero-certs svg { width: 16px; height: 16px; flex-shrink: 0; color: var(--sky-light); }
.hero-art {
  justify-self: center; width: 100%; max-width: 380px;
  background: rgba(255, 255, 255, .96); border-radius: 24px; padding: 40px 36px;
  box-shadow: 0 30px 60px rgba(0, 0, 0, .35);
}

/* Services */
.services { background: var(--bg-soft); }
.section-head { margin-bottom: 48px; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px; transition: box-shadow .2s, transform .2s;
}
.card:hover { box-shadow: 0 14px 40px rgba(15, 23, 42, .08); transform: translateY(-2px); }
.card-icon {
  width: 46px; height: 46px; border-radius: 12px; margin-bottom: 18px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(56, 189, 248, .18), rgba(30, 58, 138, .18));
  color: var(--navy);
}
.card-icon svg { width: 24px; height: 24px; }
.card p { color: var(--muted); margin: 0; font-size: .97rem; }

/* Approach */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; counter-reset: step; }
.step { position: relative; padding-top: 52px; }
.step::before {
  counter-increment: step; content: "0" counter(step);
  position: absolute; top: 0; left: 0;
  font-weight: 800; font-size: 1.6rem; color: var(--sky);
}
.step p { color: var(--muted); font-size: .97rem; }

.tech { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 40px; }
.tech span { border: 1px solid var(--line); border-radius: 999px; padding: 6px 14px; font-size: .88rem; font-weight: 600; color: var(--slate); background: #fff; }

/* About */
.about { background: var(--bg-soft); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.about-logo { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 36px; }
.facts { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 12px; }
.facts li { padding-left: 28px; position: relative; }
.facts li::before { content: ""; position: absolute; left: 0; top: .5em; width: 12px; height: 12px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 0 3px rgba(255, 215, 0, .25); }

/* Certifications */
.certs { margin-top: 28px; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.certs-title { grid-column: 1 / -1; font-size: .78rem; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: var(--muted); }
.cert { background: #fff; border: 1px solid var(--line); border-left: 4px solid var(--sky); border-radius: 10px; padding: 14px 16px; }
.cert strong { display: block; color: var(--ink); font-size: .97rem; line-height: 1.3; }
.cert span { font-size: .85rem; color: var(--muted); }
a.cert { display: block; transition: border-color .2s, box-shadow .2s, transform .2s; }
a.cert:hover, a.cert:focus-visible { text-decoration: none; border-color: var(--sky); box-shadow: 0 8px 20px rgba(14, 165, 233, .15); transform: translateY(-2px); }
.cert-link { display: block; margin-top: 6px; font-style: normal; font-size: .8rem; font-weight: 600; color: var(--sky); }

/* Contact */
.contact-box {
  background: linear-gradient(135deg, var(--navy), #0C4A6E);
  border-radius: 22px; padding: 56px; color: #CBD5E1;
  display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: center;
}
.contact-box h2 { color: #fff; }
.contact-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.contact-list a { color: #fff; font-weight: 600; }
.contact-list small { display: block; color: var(--sky-light); text-transform: uppercase; letter-spacing: .12em; font-size: .72rem; font-weight: 700; }

/* Footer */
.site-footer { padding: 36px 0; border-top: 1px solid var(--line); font-size: .9rem; color: var(--muted); }
.footer-row { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }

/* Responsive */
@media (max-width: 900px) {
  .hero-grid, .about-grid, .contact-box { grid-template-columns: 1fr; }
  .hero-art { max-width: 260px; order: -1; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .contact-box { padding: 36px 24px; }
}
@media (max-width: 720px) {
  section { padding: 64px 0; }
  .hero { padding: 72px 0; }
  .cards, .steps, .certs { grid-template-columns: 1fr; }
  .nav-toggle { display: block; }
  .nav-links {
    display: none; position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; gap: 0; background: #fff; border-bottom: 1px solid var(--line);
  }
  .nav-links.open { display: flex; }
  .nav-links a { display: block; padding: 14px 20px; }
}