:root {
  --bg: #090F1A;
  --bg2: #0D1525;
  --card: rgba(13,21,37,0.78);
  --border: rgba(118,232,255,0.18);
  --text: #e8f4ff;
  --muted: #7a97b8;
  --cyan: #76E8FF;
  --purple: #9B7FFF;
  --green: #3DFFA0;
  --red: #FF5C7D;
  --grad: linear-gradient(135deg,#76E8FF 0%,#9B7FFF 100%);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at 20% 0%, rgba(118,232,255,0.09), transparent 34%), var(--bg);
  color: var(--text);
  line-height: 1.65;
}
a { color: inherit; }
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 5vw, 64px);
  background: rgba(9,15,26,0.86);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
}
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 800; }
.brand img { width: 36px; height: 36px; border-radius: 10px; border: 1px solid var(--border); }
.brand span, .gradient-text { background: var(--grad); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.nav-links { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; font-size: 14px; color: var(--muted); }
.nav-links a { text-decoration: none; }
.nav-links a:hover, .nav-links a.active { color: var(--cyan); }
.app-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 18px;
  border-radius: 10px;
  background: var(--grad);
  color: var(--bg);
  font-weight: 800;
  text-decoration: none;
}
.container { width: min(1120px, calc(100% - 36px)); margin: 0 auto; }
.hero { padding: clamp(64px, 10vw, 118px) 0 54px; text-align: center; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(118,232,255,0.1);
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  font-weight: 800;
}
h1 {
  margin: 0 auto 18px;
  max-width: 900px;
  font-size: clamp(36px, 7vw, 72px);
  line-height: 1.05;
  letter-spacing: -0.03em;
}
.hero p { max-width: 760px; margin: 0 auto; color: var(--muted); font-size: 18px; }
.section { padding: 54px 0; }
.section h2 { margin: 0 0 14px; font-size: clamp(28px, 4vw, 44px); line-height: 1.12; }
.section > .container > p, .lead { max-width: 760px; color: var(--muted); }
.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin-top: 28px; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 26px;
  box-shadow: 0 24px 80px rgba(0,0,0,0.18);
}
.card h3 { margin: 0 0 10px; font-size: 20px; }
.card p, .card li { color: var(--muted); }
.card ul { padding-left: 20px; }
.price { font-size: 44px; line-height: 1; font-weight: 900; margin: 10px 0; }
.old-price { color: var(--muted); }
.old-price s { text-decoration-color: var(--red); }
.tag {
  display: inline-flex;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--cyan);
  background: rgba(118,232,255,0.08);
  font-size: 12px;
  font-weight: 800;
}
.cta {
  margin: 56px auto;
  text-align: center;
  padding: 48px 24px;
  border: 1px solid var(--border);
  border-radius: 24px;
  background: var(--card);
}
.footer {
  border-top: 1px solid var(--border);
  padding: 34px clamp(18px, 5vw, 64px);
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  background: var(--bg2);
}
.footer a { color: var(--muted); text-decoration: none; margin-right: 14px; }
.footer a:hover { color: var(--cyan); }
@media (max-width: 820px) {
  .nav { align-items: flex-start; flex-direction: column; }
  .grid, .grid.two { grid-template-columns: 1fr; }
  .hero { text-align: left; }
  .hero p { margin-left: 0; }
}