:root {
  --navy: #0c2340;
  --navy-2: #1a4a6e;
  --teal: #2d8a9e;
  --mint: #5cbdb9;
  --ink: #0c2340;
  --muted: #5b6675;
  --line: #e2e8f0;
  --surface: #f8fafc;
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "DM Sans", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: #fff;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--mint); color: var(--navy); }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--navy);
  letter-spacing: -0.01em;
}

a { text-decoration: none; color: inherit; }

img { max-width: 100%; display: block; }

/* Utility Bar */
.utility-bar {
  background: var(--navy);
  color: #fff;
  padding: .55rem 0;
  font-size: .78rem;
  letter-spacing: .04em;
}
.utility-bar a { color: #fff; opacity: .85; transition: opacity .2s; }
.utility-bar a:hover { opacity: 1; color: var(--mint); }
.lang-switch span { opacity: .6; cursor: pointer; }
.lang-switch span.active { opacity: 1; color: var(--mint); }

/* Main Nav */
.main-nav {
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  padding: .9rem 0;
  transition: box-shadow .2s, padding .2s;
}
.main-nav.scrolled { box-shadow: 0 4px 20px rgba(12,35,64,.06); padding: .6rem 0; }
.brand-mark {
  width: 32px; height: 32px;
  background: var(--teal);
  color: #fff;
  display: inline-flex;
  align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -.05em;
}
.brand-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.4rem;
  letter-spacing: -.04em;
  color: var(--navy);
}
.main-links .nav-link {
  font-weight: 500;
  font-size: .85rem;
  color: var(--navy);
  transition: color .2s;
  padding: .5rem .25rem;
}
.main-links .nav-link:hover { color: var(--teal); }

.btn-cta {
  background: var(--teal);
  color: #fff;
  font-weight: 700;
  font-size: .85rem;
  padding: .65rem 1.25rem;
  border-radius: 0;
  transition: background .2s;
}
.btn-cta:hover { background: var(--navy-2); color: #fff; }

/* Hero */
.hero {
  position: relative;
  background: var(--navy);
  color: #fff;
  padding: 7rem 0 6.5rem;
  overflow: hidden;
}
.hero-grid {
  position: absolute; inset: 0;
  background-image: radial-gradient(circle at 2px 2px, var(--mint) 1px, transparent 0);
  background-size: 40px 40px;
  opacity: .1;
  pointer-events: none;
}
.hero .chip {
  display: inline-block;
  background: var(--mint);
  color: var(--navy);
  font-weight: 700;
  font-size: .75rem;
  padding: .35rem .75rem;
  margin-bottom: 1.5rem;
  letter-spacing: .05em;
}
.hero h1 {
  color: #fff;
  font-size: clamp(2.5rem, 6vw, 5rem);
  line-height: .95;
  margin-bottom: 1.75rem;
  text-transform: uppercase;
}
.hero h1 .accent { color: var(--mint); }
.hero .lead {
  color: rgba(226, 232, 240, .85);
  font-size: 1.15rem;
  max-width: 640px;
  margin-bottom: 2.5rem;
}

.btn-mint {
  background: var(--mint);
  color: var(--navy);
  font-weight: 700;
  font-size: .9rem;
  padding: .9rem 1.75rem;
  border-radius: 0;
  letter-spacing: .03em;
  transition: transform .2s, box-shadow .2s;
}
.btn-mint:hover {
  transform: translateY(-2px);
  color: var(--navy);
  box-shadow: 0 10px 30px rgba(92,189,185,.3);
}
.btn-outline-light-thin {
  background: transparent;
  border: 1px solid rgba(255,255,255,.2);
  color: #fff;
  font-weight: 700;
  font-size: .9rem;
  padding: .9rem 1.75rem;
  border-radius: 0;
  letter-spacing: .03em;
  transition: background .2s;
}
.btn-outline-light-thin:hover { background: rgba(255,255,255,.06); color: #fff; }

/* Trust Strip */
.trust-strip {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  padding: 2.75rem 0;
}
.brand-word {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--navy);
  opacity: .55;
  letter-spacing: -.01em;
}
.divider { width: 1px; height: 36px; background: #cbd5e1; }
.stat .stat-num {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.8rem;
  color: var(--navy);
  line-height: 1;
}
.stat .stat-label {
  display: block;
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .15em;
  color: var(--navy);
  margin-top: .35rem;
}

/* Solutions */
.solutions { padding: 6rem 0; }
.solution-row { margin-bottom: 7rem; }
.solution-row:last-child { margin-bottom: 0; }

.eyebrow {
  display: block;
  color: var(--teal);
  font-weight: 700;
  font-size: .8rem;
  letter-spacing: .2em;
  margin-bottom: 1rem;
}
.solutions h2 {
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  margin-bottom: 1.25rem;
  line-height: 1.15;
}
.solutions p {
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 2rem;
  max-width: 520px;
}

.spec-list { list-style: none; padding: 0; margin: 0 0 2.25rem; }
.spec-list li {
  display: flex; align-items: center; gap: .85rem;
  font-size: .92rem; font-weight: 500;
  color: #334155;
  margin-bottom: .6rem;
}
.spec-list .dot {
  width: 18px; height: 18px;
  border-radius: 50%;
  background: rgba(92,189,185,.2);
  position: relative;
  flex-shrink: 0;
}
.spec-list .dot::after {
  content: ""; position: absolute;
  top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--teal);
}

.link-arrow {
  color: var(--navy);
  font-weight: 700;
  font-size: .85rem;
  letter-spacing: .05em;
  border-bottom: 2px solid var(--teal);
  padding-bottom: .25rem;
  transition: color .2s;
}
.link-arrow:hover { color: var(--teal); }

.solution-img {
  position: relative;
  margin: 0;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--surface);
}
.solution-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
}
.solution-img:hover img { transform: scale(1.03); }
.solution-img::after {
  content: ""; position: absolute; inset: 0;
  background: rgba(12,35,64,.05);
  mix-blend-mode: multiply;
  pointer-events: none;
}
.tech-tag {
  position: absolute;
  top: 1rem; right: 1rem;
  background: var(--navy);
  color: #fff;
  padding: .3rem .55rem;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: .65rem;
  letter-spacing: -.02em;
  z-index: 1;
}
.tech-tag-left { right: auto; left: 1rem; }

/* Contact Band */
.contact-band {
  background: var(--navy);
  color: #fff;
  padding: 4rem 0;
}
.contact-band h2 {
  color: #fff;
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  margin-bottom: .25rem;
}
.contact-band p { color: rgba(226, 232, 240, .65); margin: 0; }

/* Footer */
.site-footer {
  background: var(--navy);
  border-top: 1px solid rgba(255,255,255,.08);
  color: rgba(226, 232, 240, .65);
  padding: 4rem 0 2rem;
  font-size: .9rem;
}
.site-footer .brand-text { color: #fff; }
.site-footer h4 {
  color: #fff;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer ul li { margin-bottom: .85rem; }
.site-footer ul a { color: rgba(226, 232, 240, .65); transition: color .2s; }
.site-footer ul a:hover { color: #fff; }
.site-footer .strong { color: #fff; font-weight: 500; }
.footer-bottom {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,.06);
  font-size: .78rem;
}
.footer-bottom a { transition: color .2s; }
.footer-bottom a:hover { color: #fff; }

/* Reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.in { opacity: 1; transform: none; }

/* Responsive tweaks */
@media (max-width: 991px) {
  .main-nav .navbar-collapse { padding-top: 1rem; }
  .btn-cta { margin-top: 1rem; display: inline-block; }
  .hero { padding: 5rem 0 4.5rem; }
  .solutions { padding: 4rem 0; }
  .solution-row { margin-bottom: 4.5rem; }
}