:root {
  --navy-900: #0a1a35;
  --navy-800: #0f2547;
  --navy-700: #16335f;
  --navy-600: #1d4279;
  --accent: #4f8cff;
  --accent-soft: rgba(79, 140, 255, 0.12);
  --text: #e8eefb;
  --text-muted: #a9b8d4;
  --text-dark: #0a1a35;
  --surface: #ffffff;
  --surface-muted: #f4f7fc;
  --border: rgba(16, 37, 71, 0.1);

  --maxw: 1080px;
  --radius: 14px;
  --space-section: clamp(4rem, 3rem + 5vw, 8rem);
  --duration: 220ms;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  color: var(--text-dark);
  background: var(--surface);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 2.5rem);
}

a { color: inherit; }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
  margin: 0 0 0.75rem;
}

.btn {
  display: inline-block;
  padding: 0.85rem 1.6rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  text-decoration: none;
  transition: transform var(--duration) var(--ease),
    background var(--duration) var(--ease), color var(--duration) var(--ease);
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 10px 30px -10px rgba(79, 140, 255, 0.7);
}
.btn-primary:hover { transform: translateY(-2px); background: #3d7bf0; }
.btn-ghost {
  border: 1px solid rgba(232, 238, 251, 0.35);
  color: var(--text);
}
.btn-ghost:hover { transform: translateY(-2px); background: rgba(255, 255, 255, 0.08); }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(10, 26, 53, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--maxw);
  margin-inline: auto;
  padding: 1rem clamp(1.25rem, 5vw, 2.5rem);
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
  text-decoration: none;
}
.brand-mark {
  width: 14px;
  height: 14px;
  border-radius: 4px;
  background: linear-gradient(135deg, var(--accent), #7fb0ff);
  transform: rotate(45deg);
}
.nav-links {
  display: flex;
  gap: 1.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color var(--duration) var(--ease);
}
.nav-links a:hover { color: var(--text); }

/* Hero */
.hero {
  background:
    radial-gradient(1200px 600px at 70% -10%, rgba(79, 140, 255, 0.25), transparent 60%),
    linear-gradient(180deg, var(--navy-900), var(--navy-800));
  color: var(--text);
  padding-block: clamp(5rem, 4rem + 8vw, 9rem);
}
.hero-inner { max-width: 760px; }
.hero h1 {
  font-size: clamp(2.4rem, 1.2rem + 4.5vw, 4.2rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 1.25rem;
  font-weight: 800;
}
.hero-sub {
  font-size: clamp(1.05rem, 1rem + 0.4vw, 1.25rem);
  color: var(--text-muted);
  margin: 0 0 2.25rem;
  max-width: 60ch;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

/* Sections */
.section { padding-block: var(--space-section); }
.section h2 {
  font-size: clamp(1.8rem, 1.2rem + 2vw, 2.6rem);
  letter-spacing: -0.02em;
  margin: 0 0 2.5rem;
  font-weight: 700;
}
.section-alt { background: var(--surface-muted); }

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  transition: transform var(--duration) var(--ease),
    box-shadow var(--duration) var(--ease);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -24px rgba(16, 37, 71, 0.45);
}
.card h3 {
  margin: 0 0 0.75rem;
  font-size: 1.2rem;
  color: var(--navy-700);
}
.card p { margin: 0; color: #44557a; }

/* Why */
.why-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
.why-lead { color: #44557a; max-width: 46ch; margin: 0; }
.why-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 1rem; }
.why-list li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 10px;
  padding: 1rem 1.25rem;
  color: #44557a;
}
.why-list strong { color: var(--navy-800); }

/* Contact */
.contact-inner { max-width: 640px; }
.contact-sub { color: #44557a; margin: 0 0 2rem; font-size: 1.1rem; }

/* Footer */
.site-footer {
  background: var(--navy-900);
  color: var(--text-muted);
  padding-block: 3.5rem 2.5rem;
}
.footer-inner { display: grid; gap: 1.5rem; }
.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text);
  font-weight: 700;
  font-size: 1.05rem;
}
.legal {
  font-style: normal;
  line-height: 1.8;
  font-size: 0.95rem;
}
.legal a { color: var(--accent); text-decoration: none; }
.legal a:hover { text-decoration: underline; }
.copyright {
  margin: 0;
  font-size: 0.85rem;
  color: rgba(169, 184, 212, 0.7);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 1.5rem;
}

@media (max-width: 720px) {
  .nav-links { display: none; }
  .why-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto; }
  .btn, .card { transition: none; }
}