:root {
  color-scheme: dark;
  --bg: #061224;
  --panel: rgb(10 22 45 / 0.84);
  --line: rgb(255 255 255 / 0.12);
  --text: #eff6ff;
  --muted: #93c5fd;
  --accent: #38bdf8;
  font-family: "Space Grotesk", system-ui, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; min-width: 320px;
  background:
    radial-gradient(circle at 20% 0%, rgb(59 130 246 / 0.2), transparent 24%),
    linear-gradient(180deg, #020817 0%, #061224 100%);
  color: var(--text);
}
a { color: inherit; text-decoration: none; }
.topbar, main { width: min(1120px, calc(100% - 48px)); margin: 0 auto; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 28px 0; }
.brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 700; }
.brand img { width: 32px; height: auto; }
.nav-links { display: flex; gap: 22px; color: var(--muted); font-size: 14px; }
.hero { display: grid; grid-template-columns: 1fr 400px; gap: 44px; align-items: center; padding: 40px 0 72px; }
.eyebrow { margin: 0 0 14px; color: var(--accent); font-size: 12px; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; }
.hero h1, .section-heading h2, .cta h2 { margin: 0; font-family: "Manrope", "Space Grotesk", sans-serif; font-size: clamp(48px, 8vw, 88px); line-height: 0.94; }
.hero p, .info-card p, .use-card p { color: #bfdbfe; font-size: 18px; line-height: 1.78; }
.actions { margin-top: 28px; }
.primary-button {
  display: inline-flex; min-height: 46px; align-items: center; justify-content: center; border-radius: 999px; padding: 0 22px;
  background: linear-gradient(135deg, #eff6ff 0%, #7dd3fc 100%); color: #061224; font-weight: 700;
}
.secondary-button {
  display: inline-flex; min-height: 46px; align-items: center; justify-content: center; border-radius: 999px; padding: 0 22px;
  border: 1px solid var(--line); background: rgb(255 255 255 / 0.06); color: var(--text); font-weight: 700;
}
.vault-card, .info-card, .use-card, .cta { border: 1px solid var(--line); background: var(--panel); backdrop-filter: blur(14px); }
.vault-card {
  min-height: 460px; display: flex; align-items: center; justify-content: center; position: relative; border-radius: 34px;
  background:
    radial-gradient(circle at top center, rgb(56 189 248 / 0.22), transparent 22%),
    linear-gradient(180deg, #0a1a35 0%, #08152b 100%);
}
.app-icon { position: absolute; top: 26px; left: 26px; width: 74px; height: 74px; border-radius: 22px; object-fit: cover; }
.folder-shell { width: 260px; }
.folder-top { width: 120px; height: 34px; border-radius: 18px 18px 0 0; background: linear-gradient(135deg, #7dd3fc 0%, #38bdf8 100%); }
.folder-body {
  display: grid; gap: 14px; padding: 26px; border-radius: 0 28px 28px 28px;
  background: linear-gradient(180deg, #e0f2fe 0%, #7dd3fc 100%); color: #082032; font-weight: 700;
}
.section-block, .cta { padding: 44px 0 82px; }
.section-heading { margin-bottom: 28px; }
.section-heading h2, .cta h2 { font-size: clamp(38px, 6vw, 68px); }
.card-grid, .use-grid { display: grid; gap: 18px; }
.card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.use-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.info-card, .use-card { padding: 28px; border-radius: 28px; }
.info-card h3, .use-card span { display: block; margin: 0 0 14px; font-size: 24px; font-weight: 700; }
.use-card span { color: var(--accent); }
.cta { padding: 40px; border-radius: 34px; text-align: center; }
.cta h2 { margin-bottom: 22px; }
.cta .actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
@media (max-width: 960px) {
  .hero, .card-grid, .use-grid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .topbar, main { width: min(100%, calc(100% - 32px)); }
  .topbar { flex-direction: column; align-items: flex-start; }
  .nav-links { flex-wrap: wrap; }
  .info-card, .use-card, .cta { padding: 24px; border-radius: 24px; }
}