:root {
  --primary: #1d997c;
  --background: #1d212c;
  --accent: #f8f9fb;
  --font-primary: #ffffff;
  --font-secondary: #7c88a4;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Ubuntu, sans-serif;
  background: var(--background);
  color: var(--font-primary);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ================= NAV ================= */

header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  background: rgba(29, 33, 44, 0.8);
  border-bottom: 1px solid rgba(248, 249, 251, 0.08);
}

.nav {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  font-weight: 800;
  font-size: 1.2rem;
}

.nav-brand span {
  color: var(--primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  color: var(--font-secondary);
  font-weight: 500;
}

.nav-links a:hover {
  color: var(--font-primary);
}

.nav-cta {
  padding: 10px 18px;
  border-radius: 12px;
  background: var(--primary);
  font-weight: 600;
  color: var(--font-primary) !important;
}

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
}

.burger span {
  width: 24px;
  height: 2px;
  background: var(--font-primary);
  transition: 0.3s;
}

.burger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.burger.active span:nth-child(2) {
  opacity: 0;
}
.burger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ================= HERO ================= */

.hero {
  min-height: calc(100vh - 72px);
  display: flex;
  align-items: center;
  background: radial-gradient(
    80% 60% at 20% 20%,
    rgba(29, 153, 124, 0.15),
    transparent 60%
  );
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 24px;
}

.hero h1 span {
  color: var(--primary);
}

.hero p {
  color: var(--font-secondary);
  max-width: 520px;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  gap: 16px;
}

.btn {
  padding: 14px 28px;
  border-radius: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-secondary {
  background: transparent;
  border: 1px solid rgba(248, 249, 251, 0.2);
  color: var(--accent);
}

.preview {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(248, 249, 251, 0.08);
  border-radius: 20px;
  padding: 24px;
}

.preview-inner {
  aspect-ratio: 16 / 9;
  border-radius: 14px;
  background: linear-gradient(
    135deg,
    rgba(29, 153, 124, 0.35),
    rgba(248, 249, 251, 0.05)
  );
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--font-secondary);
}

/* ================= SECTIONS ================= */

section {
  padding: 120px 0;
}
section h2 {
  text-align: center;
  font-size: 2.3rem;
  margin-bottom: 64px;
}

.steps,
.targets,
.trust {
  display: grid;
  gap: 32px;
}

.steps {
  grid-template-columns: repeat(3, 1fr);
}
.targets,
.trust {
  grid-template-columns: repeat(4, 1fr);
}

.card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(248, 249, 251, 0.08);
  border-radius: 20px;
  padding: 32px;
  text-align: center;
}

.card span {
  color: var(--primary);
  font-weight: 700;
}

/* ================= FAQ ================= */

.faq {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid rgba(248, 249, 251, 0.08);
  padding-bottom: 24px;
  margin-bottom: 24px;
}

.faq-item p {
  color: var(--font-secondary);
}

/* ================= MOBILE ================= */

@media (max-width: 900px) {
  .hero-grid,
  .steps,
  .targets,
  .trust {
    grid-template-columns: 1fr;
  }

  .nav-links {
    position: fixed;
    inset: 72px 0 0 0;
    background: var(--background);
		height: fit-content;
    flex-direction: column;
    padding: 32px;
    display: none;
  }

  .nav-links.open {
    display: flex;
  }
  .burger {
    display: flex;
  }
}