:root {
  --bg: #0d1117;
  --bg-soft: #121923;
  --card: #151d2a;
  --card-alt: #1a2433;
  --text: #eef2f7;
  --muted: #9ba8b8;
  --line: rgba(255,255,255,0.08);
  --accent: #ff4d4d;
  --accent-soft: rgba(255,77,77,0.12);
  --shadow: 0 20px 60px rgba(0,0,0,0.28);
  --radius: 22px;
  --container: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: linear-gradient(180deg, #0b1016 0%, #0d1117 100%);
  color: var(--text);
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
.container { width: min(var(--container), calc(100% - 32px)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(13,17,23,0.78);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 74px;
  gap: 20px;
}
.brand {
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: .02em;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
}
.nav-links a { color: var(--muted); }
.nav-links a:hover { color: var(--text); }
.nav-button {
  padding: 12px 18px;
  border-radius: 999px;
  background: var(--accent);
  color: white !important;
  font-weight: 700;
}
.burger {
  display: none;
  border: 0;
  background: transparent;
  color: white;
  font-size: 1.6rem;
}
.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 14px;
  padding: 0 16px 16px;
  border-top: 1px solid var(--line);
}
.mobile-menu a { color: var(--muted); }
.mobile-menu.open { display: flex; }

.hero {
  padding: 72px 0 32px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.25fr .85fr;
  gap: 28px;
  align-items: center;
}
.eyebrow {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: #ffb8b8;
  font-size: .92rem;
  font-weight: 700;
  margin-bottom: 18px;
}
.hero h1 {
  margin: 0 0 18px;
  font-size: clamp(2.25rem, 5vw, 4.2rem);
  line-height: 1.02;
}
.lead {
  margin: 0;
  max-width: 700px;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}
.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}
.hero-badges span {
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255,255,255,0.02);
}
.hero-card,
.info-card,
.pricing-card,
.step-card,
.buy-panel,
.download-card,
.faq-list details {
  background: linear-gradient(180deg, var(--card) 0%, var(--card-alt) 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.hero-card {
  padding: 28px;
}
.card-title {
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 14px;
}
.feature-list {
  margin: 0 0 22px;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.7;
}
.muted {
  color: var(--muted);
  line-height: 1.65;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 800;
  transition: transform .15s ease, opacity .15s ease;
}
.button:hover { transform: translateY(-1px); }
.button-primary {
  background: var(--accent);
  color: white;
}
.button-secondary {
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.02);
  color: var(--text);
}
.button-block { width: 100%; }

.section { padding: 72px 0; }
.section.alt { background: rgba(255,255,255,0.02); }
.section-head {
  max-width: 720px;
  margin-bottom: 26px;
}
.section-head h2 {
  margin: 0 0 12px;
  font-size: clamp(1.9rem, 3.6vw, 3rem);
}
.section-head p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}
.cards-grid.three {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.info-card { padding: 24px; }
.info-card h3 { margin: 0 0 10px; }
.info-card p { margin: 0; color: var(--muted); line-height: 1.7; }

.pricing-card { padding: 28px; }
.price-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
}
.price-top h3 { margin: 0 0 8px; font-size: 1.5rem; }
.price-top p { margin: 0; color: var(--muted); }
.price {
  font-size: 2.2rem;
  font-weight: 900;
  white-space: nowrap;
}
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.pricing-grid > div {
  padding: 18px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.02);
}
.pricing-grid span {
  display: block;
  color: var(--muted);
  margin-bottom: 8px;
}
.pricing-grid strong { font-size: 1.05rem; }

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-bottom: 22px;
}
.step-card { padding: 24px; }
.step-number {
  width: 42px;
  height: 42px;
  display: inline-grid;
  place-items: center;
  border-radius: 50%;
  background: var(--accent-soft);
  color: #ffb8b8;
  font-weight: 800;
  margin-bottom: 16px;
}
.step-card h3 { margin: 0 0 8px; }
.step-card p { margin: 0; color: var(--muted); line-height: 1.7; }

.download-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.download-card {
  padding: 18px 20px;
  text-align: center;
  font-weight: 700;
}
.download-card:hover { border-color: rgba(255,255,255,0.2); }

.buy-panel {
  padding: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.buy-panel h3 { margin: 0 0 8px; }
.buy-panel p { margin: 0; color: var(--muted); line-height: 1.7; }
.buy-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.faq-list {
  display: grid;
  gap: 14px;
}
.faq-list details { padding: 18px 20px; }
.faq-list summary {
  cursor: pointer;
  font-weight: 800;
}
.faq-list p {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.7;
}

.site-footer {
  padding: 34px 0 50px;
  border-top: 1px solid var(--line);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 20px;
}
.brand-footer { margin-bottom: 10px; }
.footer-title {
  font-weight: 800;
  margin-bottom: 10px;
}
.footer-links {
  display: grid;
  gap: 10px;
}
.footer-links a { color: var(--muted); }
.footer-links a:hover { color: var(--text); }

@media (max-width: 980px) {
  .hero-grid,
  .cards-grid.three,
  .pricing-grid,
  .steps-grid,
  .download-grid,
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .buy-panel {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 760px) {
  .nav-links { display: none; }
  .burger { display: block; }
  .hero-grid,
  .cards-grid.three,
  .pricing-grid,
  .steps-grid,
  .download-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .hero { padding-top: 52px; }
  .section { padding: 56px 0; }
  .price-top {
    flex-direction: column;
  }
}