:root {
  --navy: #0a1f44;
  --navy-deep: #071634;
  --navy-soft: #12295a;
  --amber: #f5a623;
  --amber-dark: #d98f12;
  --ink: #1c2434;
  --muted: #5b6577;
  --line: #e4e8ef;
  --bg: #ffffff;
  --bg-alt: #f6f8fb;
  --radius: 14px;
  --container: 1120px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }

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

h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; }

.plus { color: var(--amber); font-weight: 800; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 12px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-amber { background: var(--amber); color: var(--navy); }
.btn-amber:hover { background: #ffb738; }
.btn-ghost {
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.35);
}
.btn-ghost:hover { border-color: rgba(255, 255, 255, 0.7); }
.btn-lg { padding: 16px 36px; font-size: 17px; }

/* ---------- Nav ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 31, 68, 0.6);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background 0.25s ease, box-shadow 0.25s ease;
}
.nav.scrolled {
  background: rgba(7, 22, 52, 0.92);
  box-shadow: 0 2px 20px rgba(7, 22, 52, 0.35);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.nav-logo img { height: 34px; width: auto; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  transition: color 0.15s ease;
}
.nav-links a:hover { color: #fff; }
.nav-links a.nav-cta { color: var(--navy); padding: 9px 22px; }
.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background: linear-gradient(160deg, var(--navy-deep) 0%, var(--navy) 55%, var(--navy-soft) 100%);
  color: #fff;
  padding: 190px 0 130px;
  overflow: hidden;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, #000 30%, transparent 75%);
}
.hero-inner { position: relative; max-width: 780px; }
.hero-kicker {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 22px;
}
.hero h1 {
  font-size: clamp(38px, 6vw, 64px);
  font-weight: 800;
  margin-bottom: 24px;
}
.hero-sub {
  font-size: clamp(17px, 2.2vw, 21px);
  color: rgba(255, 255, 255, 0.8);
  max-width: 560px;
  margin-bottom: 40px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* ---------- Sections ---------- */
.section { padding: 110px 0; }
.section-kicker {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}
.section h2 {
  font-size: clamp(30px, 4vw, 42px);
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 18px;
}
.section-lead {
  font-size: 18px;
  color: var(--muted);
  max-width: 620px;
  margin-bottom: 56px;
}

.section-navy {
  background: linear-gradient(160deg, var(--navy-deep) 0%, var(--navy) 70%);
  color: #fff;
}
.section-navy .section-kicker { color: rgba(255, 255, 255, 0.6); }
.section-navy h2 { color: #fff; }
.section-navy .section-lead { color: rgba(255, 255, 255, 0.75); }

/* ---------- Cards ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px 30px;
  background: #fff;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 40px rgba(10, 31, 68, 0.1);
  border-color: transparent;
}
.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: rgba(245, 166, 35, 0.12);
  color: var(--amber-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}
.card-icon svg { width: 28px; height: 28px; }
.card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 14px;
}
.card p { color: var(--muted); font-size: 15.5px; margin-bottom: 18px; }
.card ul { list-style: none; }
.card li {
  position: relative;
  padding-left: 22px;
  font-size: 14.5px;
  color: var(--ink);
  margin-bottom: 8px;
}
.card li::before {
  content: "+";
  position: absolute;
  left: 0;
  color: var(--amber);
  font-weight: 800;
}

/* ---------- Steps ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}
.step {
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  padding: 28px 24px;
  background: rgba(255, 255, 255, 0.04);
}
.step-num {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--amber);
  letter-spacing: 0.1em;
  margin-bottom: 14px;
}
.step h3 { font-size: 19px; margin-bottom: 10px; }
.step p { font-size: 14.5px; color: rgba(255, 255, 255, 0.72); }
.approach-note {
  margin-top: 44px;
  font-size: 16px;
  color: rgba(255, 255, 255, 0.75);
}

/* ---------- Badges ---------- */
.badges { display: flex; flex-wrap: wrap; gap: 12px; }
.badge {
  padding: 10px 20px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--bg-alt);
  font-size: 14.5px;
  font-weight: 600;
  color: var(--navy);
}

/* ---------- About ---------- */
.section-about { background: var(--bg-alt); }
.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 72px;
  align-items: center;
}
.about-text h2 { margin-bottom: 24px; }
.about-text p { color: var(--muted); font-size: 16.5px; margin-bottom: 18px; max-width: 560px; }
.about-facts { display: grid; gap: 20px; }
.fact {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 26px;
  display: flex;
  align-items: center;
  gap: 20px;
}
.fact-value {
  font-size: 24px;
  font-weight: 800;
  color: var(--amber-dark);
  min-width: 58px;
}
.fact-label { font-size: 15px; color: var(--ink); font-weight: 500; }

/* ---------- CTA ---------- */
.section-cta { text-align: center; }
.section-cta .section-lead { margin-left: auto; margin-right: auto; }

/* ---------- Footer ---------- */
.footer {
  background: var(--navy-deep);
  color: rgba(255, 255, 255, 0.6);
  padding: 34px 0;
  font-size: 14px;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

/* ---------- Reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .cards { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; gap: 44px; }
}

@media (max-width: 720px) {
  .section { padding: 80px 0; }
  .hero { padding: 150px 0 96px; }
  .steps { grid-template-columns: 1fr; }

  .nav-burger { display: flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    background: var(--navy-deep);
    padding: 16px 24px 24px;
    box-shadow: 0 16px 30px rgba(0, 0, 0, 0.3);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 10px 0; font-size: 16px; }
  .nav-links a.nav-cta { margin-top: 10px; }
}