/* Reset & tokens */
:root {
  --brand:#0d3f63;
  --brand-accent:#0a629a;
  --brand-dark:#04122b;
  --ink:#0f172a;
  --ink-light:#e5e7f0;
  --muted:#5f6b7a;
  --panel:#f5f6fb;
  --section-alt:#e9edf5;
  --gradient:linear-gradient(135deg, rgba(13,63,99,0.92), rgba(4,18,43,0.92));
  --contact-gradient:linear-gradient(160deg, rgba(4,18,43,0.98), rgba(10,80,147,0.9));
}

* {
  box-sizing:border-box;
}

body {
  margin:0;
  font-family:'Space Grotesk', 'Inter', system-ui, sans-serif;
  background-color:#f5f6fb;
  color:var(--ink);
  line-height:1.6;
}

.site-shell {
  min-height:100vh;
  display:flex;
  flex-direction:column;
}

.site-header {
  background-color:#fff;
  border-bottom:1px solid rgba(15,23,42,0.08);
  position:sticky;
  top:0;
  z-index:99;
}

.site-header nav {
  padding:1.25rem 0;
}

.brand {
  display:inline-flex;
  align-items:center;
  gap:0.75rem;
  text-decoration:none;
}

.brand-logo {
  width:220px;
  max-width:100%;
  height:auto;
  filter:drop-shadow(0 12px 25px rgba(4,18,43,0.35));
}

.nav-links {
  display:flex;
  gap:1.5rem;
  align-items:center;
}

.nav-links a {
  color:var(--ink);
  text-decoration:none;
  font-weight:500;
  padding:0.4rem 0.75rem;
}

.nav-links .btn-outline-light {
  border-color:var(--ink);
  color:var(--ink);
}

.hero {
  position:relative;
  padding:5rem 0 4rem;
  background-image:url('../img/hero.jpg');
  background-size:cover;
  background-position:center;
  color:#fff;
}

.hero::before {
  content:'';
  position:absolute;
  inset:0;
  background:var(--gradient);
  z-index:0;
}

.hero-content {
  position:relative;
  z-index:1;
}

.hero h1 {
  font-size:clamp(2.5rem, 4vw, 3.3rem);
  font-weight:600;
}

.hero .lead {
  max-width:640px;
  margin:auto;
}

.hero-cta {
  margin-top:2rem;
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:0.75rem;
}

.btn-primary {
  background:linear-gradient(135deg, var(--brand), var(--brand-accent));
  border:none;
  font-weight:600;
  padding:0.85rem 1.3rem;
}

.btn-outline-light {
  border-color:#fff;
  color:#fff;
  font-weight:500;
}

.hero-stats {
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(160px,1fr));
  gap:1.5rem;
  margin-top:2.5rem;
  text-align:center;
}

.hero-stats span {
  font-size:1.8rem;
  font-weight:600;
}

.eyebrow {
  letter-spacing:0.15em;
  text-transform:uppercase;
  font-size:0.75rem;
  margin-bottom:0.5rem;
  color:var(--brand-accent);
}

.section {
  padding:4.5rem 0;
}

.section-alt {
  background-color:var(--section-alt);
}

.section-heading {
  text-align:center;
  margin-bottom:3rem;
}

.section-heading h2 {
  font-size:2.4rem;
  font-weight:600;
  margin-bottom:1rem;
}

.section-heading p {
  color:var(--muted);
  max-width:640px;
  margin:0 auto;
}

.cards-grid {
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:2rem;
}

.service-card {
  background:#fff;
  border-radius:18px;
  padding:2rem;
  box-shadow:0 25px 60px rgba(15,23,42,0.15);
  transition:transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
  transform:translateY(-6px);
  box-shadow:0 30px 60px rgba(15,23,42,0.2);
}

.service-card h3 {
  margin-bottom:0.75rem;
}

.service-card p {
  color:var(--muted);
}

.service-card ul {
  list-style:none;
  padding:0;
  margin-top:1rem;
  color:var(--muted);
}

.service-card li::before {
  content:'�';
  margin-right:0.5rem;
  color:var(--brand-dark);
}

.solution-list {
  list-style:none;
  padding:0;
  margin-top:2rem;
  color:var(--muted);
}

.solution-list li {
  position:relative;
  padding-left:1.2rem;
  margin-bottom:0.8rem;
}

.solution-list li::before {
  content:'';
  position:absolute;
  left:0;
  top:0.55rem;
  width:6px;
  height:6px;
  background:var(--brand);
  border-radius:50%;
}

.infra-grid {
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:1.5rem;
}

.infra-grid article {
  background:#fff;
  padding:1.75rem;
  border-radius:16px;
  box-shadow:0 15px 30px rgba(15,23,42,0.1);
}

.section-contact {
  background:var(--contact-gradient);
  color:#fff;
}

.section-contact h2,
.section-contact p,
.section-contact strong {
  color:#fff;
}

.contact-list {
  list-style:none;
  padding:0;
  margin-top:1.5rem;
  display:grid;
  gap:0.9rem;
}

.contact-list span {
  display:block;
  font-size:0.8rem;
  text-transform:uppercase;
  letter-spacing:0.12em;
  color:rgba(255,255,255,0.6);
}

.contact-list a {
  color:#fff;
  text-decoration:none;
}

.contact-form {
  background:#0f172a;
  border-radius:18px;
  padding:2rem;
  box-shadow:0 30px 60px rgba(15,23,42,0.35);
  color:#fff;
}

.contact-form label {
  display:block;
  margin-bottom:0.35rem;
  font-weight:600;
}

.contact-form input,
.contact-form textarea {
  width:100%;
  border-radius:10px;
  border:1px solid rgba(255,255,255,0.2);
  padding:0.9rem 1rem;
  font-family:'Space Grotesk', 'Inter', sans-serif;
  font-size:1rem;
  margin-bottom:1.25rem;
  background:rgba(255,255,255,0.04);
  color:#fff;
}

.contact-form button {
  border-radius:12px;
  font-weight:600;
  background:linear-gradient(135deg, var(--brand), var(--brand-accent));
  border:none;
  color:#fff;
  padding:0.95rem 1.4rem;
  width:100%;
}

.form-note {
  color:rgba(255,255,255,0.75);
  font-size:0.95rem;
  margin-top:0.8rem;
  text-align:center;
}

.site-footer {
  padding:2rem 0;
  background:#04122b;
  color:#fff;
  margin-top:auto;
}

.site-footer p {
  margin:0;
  font-size:0.95rem;
}

@media (max-width:992px) {
  .nav-links {
    display:none;
  }
}

@media (max-width:768px) {
  .hero-cta {
    flex-direction:column;
  }
}