@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
  --navy:       #050B18;
  --navy2:      #091425;
  --navy3:      #0D1D35;
  --navy4:      #122544;
  --blue:       #0EA5E9;
  --blue-dim:   rgba(14,165,233,0.12);
  --blue-glow:  rgba(14,165,233,0.06);
  --blue-mid:   #38BDF8;
  --blue-pale:  #BAE6FD;
  --white:      #F0F8FF;
  --text:       #94A3B8;
  --text2:      #CBD5E1;
  --border:     rgba(14,165,233,0.12);
  --border2:    rgba(255,255,255,0.06);

  --font-head: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --max: 1120px;
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-smooth: cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--navy);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1,h2,h3,h4 { font-family: var(--font-head); color: var(--white); line-height: 1.12; }
h1 { font-size: clamp(2.6rem,6vw,4.2rem); font-weight: 700; letter-spacing: -0.03em; }
h2 { font-size: clamp(1.9rem,4vw,3rem); font-weight: 700; letter-spacing: -0.02em; }
h3 { font-size: 1.2rem; font-weight: 600; }
a  { color: inherit; text-decoration: none; }

.eyebrow {
  font-family: var(--font-body);
  font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--blue); display: inline-block; margin-bottom: 1rem;
}
.blue { color: var(--blue); }
.muted { color: var(--text); }

.container { max-width: var(--max); margin: 0 auto; padding: 0 2rem; }
.section { padding: 7rem 0; }

/* grid bg */
body::before {
  content: '';
  position: fixed; inset: 0;
  background-image:
    linear-gradient(rgba(14,165,233,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(14,165,233,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none; z-index: 0;
}
body > * { position: relative; z-index: 1; }

/* NAV */
nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 200;
  transition: background 0.3s, border-color 0.3s;
}
nav.scrolled {
  background: rgba(5,11,24,0.94);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--max); margin: 0 auto;
  padding: 1.4rem 2rem;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-head); font-weight: 700; font-size: 1.2rem;
  color: var(--white); letter-spacing: -0.02em;
  display: flex; align-items: center; gap: 0.4rem;
}
.nav-logo-dot {
  width: 7px; height: 7px; background: var(--blue);
  border-radius: 50%; display: inline-block;
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%,100% { box-shadow: 0 0 0 0 rgba(14,165,233,0.5); }
  50%      { box-shadow: 0 0 0 7px rgba(14,165,233,0); }
}
.nav-links { display: flex; gap: 2.5rem; list-style: none; }
.nav-links a {
  font-size: 0.875rem; font-weight: 500; color: var(--text);
  transition: color 0.2s; position: relative;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -4px; left: 0;
  width: 0; height: 1px; background: var(--blue);
  transition: width 0.25s var(--ease-smooth);
}
.nav-links a:hover { color: var(--white); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-links a.active { color: var(--white); }
.nav-cta {
  font-family: var(--font-head); font-size: 0.85rem; font-weight: 600;
  color: var(--navy); background: var(--blue);
  padding: 0.6rem 1.5rem; border-radius: 6px;
  transition: transform 0.2s var(--ease-spring), box-shadow 0.2s;
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(14,165,233,0.35); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--white); border-radius: 2px; transition: 0.25s; }

/* BUTTONS */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--font-head); font-weight: 600; font-size: 0.95rem;
  padding: 0.9rem 2.2rem; border-radius: 8px; border: none;
  cursor: pointer; transition: all 0.25s var(--ease-spring);
  position: relative; overflow: hidden;
}
.btn-primary { background: var(--blue); color: var(--navy); }
.btn-primary::after { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, transparent 60%); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(14,165,233,0.4); }
.btn-outline { background: transparent; color: var(--white); border: 1px solid var(--border); }
.btn-outline:hover { border-color: var(--blue); color: var(--blue); background: var(--blue-dim); }

/* CARDS */
.card {
  background: var(--navy2); border: 1px solid var(--border2);
  border-radius: 14px; padding: 2.5rem;
  transition: border-color 0.3s, transform 0.3s var(--ease-spring);
}
.card:hover { border-color: rgba(14,165,233,0.25); transform: translateY(-4px); }

/* BADGE */
.badge {
  display: inline-flex; align-items: center; gap: 0.4rem;
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--blue);
  background: var(--blue-dim); border: 1px solid rgba(14,165,233,0.2);
  padding: 0.3rem 0.8rem; border-radius: 100px;
}
.badge-dot { width: 5px; height: 5px; background: var(--blue); border-radius: 50%; animation: pulse-dot 2s ease-in-out infinite; }

.divider { width: 40px; height: 2px; background: linear-gradient(90deg, var(--blue), transparent); margin: 1.2rem 0 2rem; }

.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.5rem; }
.grid-2 { display: grid; grid-template-columns: repeat(2,1fr); gap: 2rem; }

/* SCROLL REVEAL */
.sr { opacity: 0; transform: translateY(32px); transition: opacity 0.7s var(--ease-smooth), transform 0.7s var(--ease-smooth); }
.sr.vis { opacity: 1; transform: none; }
.sr-delay-1 { transition-delay: 0.1s; }
.sr-delay-2 { transition-delay: 0.2s; }
.sr-delay-3 { transition-delay: 0.3s; }
.sr-delay-4 { transition-delay: 0.4s; }

/* FOOTER */
footer {
  background: var(--navy2); border-top: 1px solid var(--border2);
  padding: 5rem 0 2.5rem;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 3rem; margin-bottom: 4rem; }
.footer-logo { font-family: var(--font-head); font-weight: 700; font-size: 1.1rem; color: var(--white); display: flex; align-items: center; gap: 0.4rem; margin-bottom: 0.8rem; }
.footer-desc { font-size: 0.875rem; color: var(--text); max-width: 300px; line-height: 1.7; }
.footer-col h4 { font-size: 0.72rem; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; color: var(--text); margin-bottom: 1.2rem; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 0.65rem; }
.footer-col a { font-size: 0.875rem; color: var(--text2); transition: color 0.2s; }
.footer-col a:hover { color: var(--blue); }
.footer-bottom { border-top: 1px solid var(--border2); padding-top: 2rem; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; }
.footer-bottom p { font-size: 0.8rem; color: var(--text); }
.footer-socials { display: flex; gap: 1.2rem; }
.footer-socials a { font-size: 0.8rem; color: var(--text); transition: color 0.2s; }
.footer-socials a:hover { color: var(--blue); }

/* RESPONSIVE */
@media (max-width: 900px) {
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
}
@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .nav-links.open {
    display: flex; flex-direction: column;
    position: fixed; top: 70px; left: 0; right: 0;
    background: var(--navy2); border-bottom: 1px solid var(--border2);
    padding: 2rem; gap: 1.5rem;
  }
  .nav-toggle { display: flex; }
  .section { padding: 4.5rem 0; }
  .footer-bottom { flex-direction: column; text-align: center; }
}