:root {
  --bg: #0a2540;
  --bg-alt: #0d2f57;
  --text: #ffffff;
  --muted: #cbd5e1;
  --accent: #66d9ff;
  --card: #0f3a6a;
  --border: rgba(255,255,255,0.12);
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  color: var(--text);
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%);
  font-family: Inter, Poppins, -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Oxygen, Ubuntu, Cantarell, Helvetica, Arial, sans-serif;
  line-height: 1.6;
}
img {
  max-width: 100%;
  display: block;
}
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: linear-gradient(90deg, #edede9, #dee2e6);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--border);
}
.site-header .nav-link {
  color: #0a2540;
}
.site-header .nav-link:hover {
  color: var(--accent);
  border-color: var(--accent);
}
.site-header .btn-accent {
  border-color: #0a2540;
  color: #0a2540;
  background: transparent;
}
.site-header .btn-accent:hover {
  background: #0a2540;
  color: #ffffff;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo img {
  height: 36px;
}
.nav {
  display: flex;
  gap: 24px;
}
.nav-link {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  padding: 8px 4px;
  border-bottom: 2px solid transparent;
  transition: border-color .2s ease, color .2s ease;
}
.nav-link:hover {
  color: var(--accent);
  border-color: var(--accent);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-toggle {
  display: none;
  width: 42px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: transparent;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: 10px;
  text-decoration: none;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
  font-weight: 600;
}
.btn-primary {
  background: var(--accent);
  color: #001a2e;
  box-shadow: 0 6px 20px rgba(102, 217, 255, 0.25);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(102, 217, 255, 0.35);
}
.btn-outline {
  border: 1px solid var(--border);
  color: var(--text);
  background: transparent;
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.btn-accent {
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent);
}
.btn-accent:hover {
  background: var(--accent);
  color: #001a2e;
}
.section {
  padding: 96px 0;
}
.section-head {
  margin-bottom: 28px;
}
.section-head h2 {
  font-size: 32px;
  letter-spacing: -0.02em;
  margin: 0;
}
.hero {
  min-height: 70vh;
  display: grid;
  place-items: center;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: -40% -20% -40% -20%;
  background:
    radial-gradient(1000px 600px at 15% 15%, rgba(102, 217, 255, 0.25), transparent 60%),
    radial-gradient(800px 500px at 85% 70%, rgba(255, 255, 255, 0.05), transparent 55%),
    conic-gradient(from 0deg at 50% 50%, rgba(102, 217, 255, 0.18), rgba(255, 255, 255, 0.02), rgba(102, 217, 255, 0.18));
  filter: blur(40px);
  animation: heroSpin 30s linear infinite;
  z-index: 0;
}
.hero-inner {
  position: relative;
  z-index: 1;
}
@keyframes heroSpin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}
.hero-title {
  font-size: 44px;
  line-height: 1.15;
  margin: 0 0 16px;
  letter-spacing: -0.02em;
}
.hero-subtitle {
  font-size: 18px;
  color: var(--muted);
  max-width: 800px;
  margin: 0 auto 24px;
}
.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.about-content {
  display: grid;
  gap: 12px;
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.service-card {
  background: rgba(15, 58, 106, 0.6);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  display: grid;
  gap: 10px;
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.25);
  border-color: rgba(102, 217, 255, 0.3);
}
.service-icon {
  color: var(--accent);
}
.why-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.why-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(15, 58, 106, 0.5);
}
.why-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 6px;
  color: #001a2e;
  background: var(--accent);
  font-weight: 700;
}
.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 24px;
}
.contact-details p {
  margin: 6px 0;
}
.contact-form {
  background: rgba(15, 58, 106, 0.6);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  display: grid;
  gap: 14px;
}
.form-field {
  display: grid;
  gap: 8px;
}
.form-field label {
  font-weight: 600;
}
.form-field input,
.form-field textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(0,0,0,0.25);
  color: var(--text);
  padding: 12px 14px;
  outline: none;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.form-field input:focus,
.form-field textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(102, 217, 255, 0.15);
}
.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  background: rgba(10, 37, 64, 0.9);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 20px;
  align-items: start;
}
.footer-brand img {
  height: 34px;
  margin-bottom: 12px;
}
.footer-links {
  display: grid;
  gap: 8px;
}
.footer-links a {
  color: var(--muted);
  text-decoration: none;
}
.footer-links a:hover {
  color: var(--accent);
}
[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .6s ease, transform .6s ease;
}
.is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (max-width: 992px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .why-list {
    grid-template-columns: 1fr;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 768px) {
  .nav {
    position: fixed;
    inset: 72px 0 auto 0;
    background: rgba(10, 37, 64, 0.98);
    backdrop-filter: saturate(180%) blur(8px);
    border-bottom: 1px solid var(--border);
    display: none;
    flex-direction: column;
    padding: 16px 24px;
  }
  .nav.show {
    display: flex;
  }
  .nav-link {
    padding: 12px 0;
    font-size: 16px;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .header-actions .btn {
    display: none;
  }
  .hero-title {
    font-size: 36px;
  }
  .services-grid {
    grid-template-columns: 1fr;
  }
}