:root {
  --navy-950: #060a12;
  --navy-900: #0a1420;
  --navy-800: #0f1d2e;
  --navy-700: #14263d;
  --navy-600: #17304e;
  --brand-500: #0d2a38;
  --text-on-dark: #f5f8ff;
  --muted-on-dark: #c9d2e3;
  --card-bg: rgba(255,255,255,0.04);
  --card-border: rgba(255,255,255,0.10);
  --shadow: 0 20px 60px rgba(0,0,0,.45);
  --radius: 16px;
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text-on-dark);
  background: linear-gradient(180deg, var(--navy-950) 0%, var(--navy-900) 60%, var(--navy-800) 100%);
  letter-spacing: 0.2px;
}
a { color: #e8f0ff; }
.topbar { position: fixed; inset: 0 0 auto 0; z-index: 40; }
nav.nav { max-width: 1280px; margin: 0 auto; padding: 14px 20px; display: flex; align-items: center; justify-content: space-between; }
.brand { font-weight: 700; letter-spacing: 0.8px; text-transform: uppercase; }
.nav-links { display: flex; gap: 26px; text-transform: uppercase; letter-spacing: 1.2px; font-size: 13px; }
.nav a { color: var(--text-on-dark); text-decoration: none; opacity: .9; }
.nav a:hover { opacity: 1; }
.topbar::after { content: ""; position: absolute; inset: 0; backdrop-filter: saturate(150%) blur(6px); background: linear-gradient(180deg, rgba(6,10,18,.75), rgba(6,10,18,0)); pointer-events: none; }
.hamburger { display: none; background: transparent; border: 0; width: 44px; height: 44px; cursor: pointer; position: relative; z-index: 41; }
.hamburger span, .hamburger::before, .hamburger::after { content: ""; display: block; height: 2px; background: var(--text-on-dark); margin: 7px 6px; border-radius: 2px; }
@media (max-width: 860px) {
  .nav-links { display: none; position: absolute; left: 12px; right: 12px; top: 60px; background: rgba(10,20,32,.85); border: 1px solid var(--card-border); border-radius: 14px; padding: 14px; flex-direction: column; box-shadow: var(--shadow); }
  .nav.open .nav-links { display: flex; }
  .hamburger { display: inline-block; }
}
header.hero {
  position: relative;
  min-height: 90vh;
  display: grid; place-items: center; text-align: center;
  padding: 120px 20px 80px;
  overflow: clip;
  isolation: isolate;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background-image: url('hero.jpg');
  background-size: cover;
  background-position: center;
  filter: brightness(.55) saturate(1.1);
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, rgba(13,42,56,.65) 0%, rgba(13,42,56,.35) 40%, rgba(6,10,18,.6) 100%);
}
.hero h1 { font-size: clamp(44px, 8vw, 86px); line-height: 1.04; margin: 0 0 10px; letter-spacing: .5px; }
.hero .tagline { max-width: 900px; margin: 0 auto 22px; color: var(--muted-on-dark); font-size: clamp(16px, 2vw, 20px); }
.cta-row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 16px; }
.btn { appearance: none; border: 0; cursor: pointer; text-decoration: none; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; border-radius: 999px; padding: 14px 22px; box-shadow: 0 10px 24px rgba(0,0,0,.4); transition: transform .08s ease, opacity .2s ease; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: #ffffff; color: #091423; }
.btn-outline { background: transparent; color: #ffffff; border: 2px solid #ffffff; }
.stripe { background: linear-gradient(180deg, var(--navy-900), var(--navy-800)); padding: 60px 20px; }
.container { max-width: 1200px; margin: 0 auto; }
section.card { background: var(--card-bg); border: 1px solid var(--card-border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px; margin: 20px 0; }
section.card h2 { margin-top: 0; font-size: 28px; letter-spacing: .4px; }
section.card p { line-height: 1.7; color: var(--muted-on-dark); }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 960px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid { grid-template-columns: 1fr; } }
.feature { background: rgba(255,255,255,.03); border: 1px solid var(--card-border); border-radius: 14px; padding: 16px; box-shadow: 0 6px 14px rgba(0,0,0,.25); display: flex; gap: 12px; align-items: flex-start; }
.feature .icon { width: 42px; height: 42px; border-radius: 10px; background: rgba(255,255,255,.06); display: grid; place-items: center; flex: 0 0 42px; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip { background: rgba(255,255,255,.06); border: 1px solid var(--card-border); padding: 8px 12px; border-radius: 999px; font-weight: 600; }
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.form-grid .full { grid-column: 1 / -1; }
label { font-weight: 600; font-size: 14px; }
input, textarea { width: 100%; border: 1px solid rgba(255,255,255,.18); background: rgba(255,255,255,.04); color: var(--text-on-dark); border-radius: 10px; padding: 12px; font: inherit; }
input::placeholder, textarea::placeholder { color: #a6b3c7; }
textarea { min-height: 140px; resize: vertical; }
.helper { font-size: 12px; opacity: .8; color: var(--muted-on-dark); }
footer.site { color: #bcd2ff; text-align: center; padding: 24px 16px; margin-top: 30px; border-top: 1px solid rgba(255,255,255,.12); }
.footer-wrap { max-width: 1200px; margin: 0 auto; }