/* ==== Reset ==== */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; }

/* ==== Tokens ==== */
:root {
  --navy-950: #05122A;
  --navy-900: #0A1F3D;
  --navy-800: #0F2A54;
  --navy-700: #17356B;
  --ink-100:  #F1F5FB;
  --ink-200:  #D6E1F0;
  --ink-300:  #A9BAD3;
  --ink-400:  #7A8EAF;
  --ink-500:  #5B6E8E;

  --accent:      #5CE1E6;   /* seafoam */
  --accent-alt:  #3AB3FF;   /* ocean blue */
  --gradient:    linear-gradient(135deg, #5CE1E6 0%, #3AB3FF 100%);

  --font-sans:    'Inter', system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-display: 'Inter Tight', var(--font-sans);

  --container: 1140px;
  --radius:    18px;
  --radius-sm: 12px;
}

body {
  font-family: var(--font-sans);
  background: var(--navy-900);
  color: var(--ink-200);
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  min-height: 100vh;
}

/* ==== Backdrop / wave glow ==== */
.wave-bg {
  position: fixed; inset: 0;
  background:
    radial-gradient(1200px 800px at 85% -10%, rgba(58, 179, 255, 0.18), transparent 60%),
    radial-gradient(900px 600px at 10% 110%, rgba(92, 225, 230, 0.12), transparent 60%),
    linear-gradient(180deg, var(--navy-900) 0%, var(--navy-950) 100%);
  z-index: -1;
  pointer-events: none;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ==== Header ==== */
.site-header {
  padding: 26px 0;
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(10, 31, 61, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between;
}
.brand {
  display: flex; align-items: center; gap: 12px;
  text-decoration: none; color: var(--ink-100); font-weight: 700;
  font-family: var(--font-display); letter-spacing: -0.01em;
  font-size: 1.05rem;
}
.brand-mark { flex-shrink: 0; }
.site-nav { display: flex; gap: 32px; }
.site-nav a {
  color: var(--ink-300); text-decoration: none; font-size: 0.95rem;
  font-weight: 500; transition: color .15s ease;
}
.site-nav a:hover { color: var(--accent); }

/* ==== Hero ==== */
.hero {
  padding: 120px 0 96px;
}
.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 8px 14px;
  border: 1px solid rgba(92, 225, 230, 0.32);
  border-radius: 999px;
  margin-bottom: 28px;
  background: rgba(92, 225, 230, 0.06);
}
.hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.4rem, 5.5vw, 4.4rem);
  line-height: 1.06;
  letter-spacing: -0.03em;
  color: var(--ink-100);
  margin: 0 0 26px;
  max-width: 22ch;
}
.accent {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}
.lede {
  font-size: 1.15rem;
  color: var(--ink-300);
  max-width: 60ch;
  margin: 0 0 36px;
}
.hero-ctas {
  display: flex; gap: 14px; flex-wrap: wrap;
}

/* ==== Buttons ==== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  padding: 14px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  text-decoration: none;
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn-primary {
  background: var(--gradient);
  color: var(--navy-950);
  box-shadow: 0 8px 26px rgba(58, 179, 255, 0.28);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 12px 34px rgba(58, 179, 255, 0.38); }
.btn-ghost {
  color: var(--ink-100);
  border-color: rgba(255,255,255,0.16);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-large { padding: 18px 28px; font-size: 1.05rem; }

/* ==== Section common ==== */
.section { padding: 96px 0; }
.section-alt {
  background: rgba(255,255,255,0.02);
  border-top: 1px solid rgba(255,255,255,0.05);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.section-head {
  max-width: 720px; margin: 0 auto 56px; text-align: center;
}
.section-eyebrow {
  display: inline-block;
  color: var(--accent);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 14px;
}
.section-head h2, .section h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  color: var(--ink-100);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 14px;
}
.section-head p {
  color: var(--ink-300);
  font-size: 1.08rem;
  margin: 0;
}

/* ==== Cards ==== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.card {
  background: linear-gradient(180deg, rgba(255,255,255,0.045) 0%, rgba(255,255,255,0.02) 100%);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 30px 30px 28px;
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}
.card:hover {
  transform: translateY(-3px);
  border-color: rgba(92, 225, 230, 0.35);
  background: linear-gradient(180deg, rgba(92, 225, 230, 0.06) 0%, rgba(255,255,255,0.02) 100%);
}
.card-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(92, 225, 230, 0.1);
  border: 1px solid rgba(92, 225, 230, 0.25);
  color: var(--accent);
  margin-bottom: 20px;
}
.card h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--ink-100);
  margin: 0 0 10px;
  letter-spacing: -0.01em;
}
.card p {
  color: var(--ink-300);
  font-size: 0.98rem;
  margin: 0;
  line-height: 1.65;
}

/* ==== About / two-col ==== */
.two-col {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr;
  gap: 72px;
  align-items: center;
}
.two-col h2 { margin-top: 12px; max-width: 18ch; }
.two-col p { color: var(--ink-300); font-size: 1.05rem; margin: 0 0 16px; }
.two-col strong { color: var(--ink-100); font-weight: 600; }

.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.stat {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-sm);
  padding: 24px 22px;
}
.stat-value {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.02em;
}
.stat-value span { font-size: 1.4rem; margin-left: 2px; }
.stat-label {
  color: var(--ink-300);
  font-size: 0.88rem;
  margin-top: 10px;
  line-height: 1.4;
}

/* ==== Contact ==== */
.contact-card {
  max-width: 780px;
  margin: 0 auto;
  padding: 60px 40px;
  text-align: center;
  background: linear-gradient(180deg, rgba(58, 179, 255, 0.08) 0%, rgba(58, 179, 255, 0.02) 100%);
  border: 1px solid rgba(92, 225, 230, 0.22);
  border-radius: var(--radius);
}
.contact-card h2 { max-width: none; }
.contact-card p {
  color: var(--ink-300);
  font-size: 1.05rem;
  max-width: 52ch;
  margin: 0 auto 30px;
}

/* ==== Footer ==== */
.site-footer {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 40px 0 32px;
  background: rgba(5, 18, 42, 0.5);
}
.footer-row {
  display: flex; justify-content: space-between; align-items: center;
  gap: 24px; flex-wrap: wrap;
  margin-bottom: 22px;
}
.brand-footer { font-size: 1rem; }
.footer-meta {
  display: flex; gap: 12px; align-items: center; flex-wrap: wrap;
  color: var(--ink-400); font-size: 0.9rem;
}
.footer-meta a { color: var(--ink-300); text-decoration: none; }
.footer-meta a:hover { color: var(--accent); }
.footer-legal {
  color: var(--ink-500);
  font-size: 0.85rem;
  border-top: 1px solid rgba(255,255,255,0.05);
  padding-top: 22px;
}

/* ==== Responsive ==== */
@media (max-width: 900px) {
  .hero { padding: 80px 0 60px; }
  .section { padding: 72px 0; }
  .card-grid { grid-template-columns: 1fr; }
  .two-col { grid-template-columns: 1fr; gap: 40px; }
  .site-nav { display: none; }
}
@media (max-width: 560px) {
  .stats { grid-template-columns: 1fr; }
  .footer-row { flex-direction: column; align-items: flex-start; }
  .contact-card { padding: 40px 24px; }
}