:root {
  color-scheme: dark;
  --canvas: #101211;
  --surface: #171a18;
  --surface-soft: #1d211e;
  --ink: #f2f2f0;
  --muted: #aeb5ae;
  --line: #303631;
  --accent: #bbf05d;
  --accent-deep: #8fbd3a;
  --max-width: 1100px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  background: var(--canvas);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}
a { color: inherit; }
.shell { width: min(calc(100% - 40px), var(--max-width)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 2;
  border-bottom: 1px solid rgba(48, 54, 49, .8);
  background: rgba(16, 18, 17, .88);
  backdrop-filter: blur(16px);
}
.site-header .shell { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.brand img { display: block; width: 145px; height: auto; }
.brand-mark { width: 34px; height: 34px; border-radius: 9px; overflow: hidden; display: grid; place-items: center; background: #d1d1d0; }
.brand-mark img { width: 34px; height: 34px; }
.nav { display: flex; align-items: center; gap: 20px; font-size: .92rem; color: var(--muted); }
.nav a { text-decoration: none; }
.nav a:hover, .nav a:focus-visible { color: var(--ink); }

.hero { padding: 110px 0 86px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; align-items: center; gap: clamp(44px, 8vw, 110px); }
.eyebrow { margin: 0 0 16px; color: var(--accent); font-size: .78rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
h1, h2, h3 { line-height: 1.08; letter-spacing: -.04em; }
h1 { max-width: 700px; margin: 0; font-size: clamp(3.1rem, 7vw, 6.5rem); font-weight: 750; }
.hero-copy { max-width: 580px; margin: 28px 0 0; color: var(--muted); font-size: clamp(1.05rem, 1.8vw, 1.25rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 19px; border: 1px solid var(--line); border-radius: 999px; text-decoration: none; font-weight: 700; font-size: .93rem; }
.button.primary { border-color: var(--accent); background: var(--accent); color: #142000; }
.button:hover { transform: translateY(-1px); }

.app-card { position: relative; min-height: 390px; padding: 32px; border: 1px solid var(--line); border-radius: 28px; background: linear-gradient(145deg, #242b25 0%, #151815 67%); overflow: hidden; }
.app-card::before, .app-card::after { content: ""; position: absolute; border-radius: 50%; filter: blur(1px); }
.app-card::before { width: 360px; height: 360px; right: -185px; top: -130px; background: rgba(187, 240, 93, .18); }
.app-card::after { width: 230px; height: 230px; bottom: -120px; left: -100px; background: rgba(187, 240, 93, .1); }
.app-card > * { position: relative; z-index: 1; }
.card-top { display: flex; align-items: center; justify-content: space-between; color: #dbe1da; font-size: .82rem; letter-spacing: .08em; text-transform: uppercase; }
.card-icon { width: 84px; height: 84px; margin-top: 70px; border-radius: 21px; overflow: hidden; box-shadow: 0 16px 35px rgba(0,0,0,.35); }
.card-icon img { width: 100%; height: 100%; display: block; }
.app-card h2 { max-width: 320px; margin: 21px 0 8px; font-size: clamp(1.8rem, 3vw, 2.65rem); }
.app-card p { max-width: 320px; margin: 0; color: var(--muted); }

.principles { padding: 76px 0 100px; border-top: 1px solid var(--line); }
.section-heading { max-width: 630px; margin-bottom: 42px; }
.section-heading h2 { margin: 0; font-size: clamp(2rem, 4vw, 3.4rem); }
.principle-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.principle { min-height: 210px; padding: 26px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); }
.principle-number { color: var(--accent); font: 700 .82rem ui-monospace, SFMono-Regular, Menlo, monospace; }
.principle h3 { margin: 42px 0 10px; font-size: 1.35rem; }
.principle p { margin: 0; color: var(--muted); font-size: .96rem; }

.privacy-hero { padding: 78px 0 42px; border-bottom: 1px solid var(--line); }
.privacy-hero h1 { font-size: clamp(2.7rem, 6vw, 5rem); }
.privacy-hero p { max-width: 680px; margin: 20px 0 0; color: var(--muted); font-size: 1.05rem; }
.policy { width: min(calc(100% - 40px), 760px); margin: 0 auto; padding: 60px 0 90px; }
.policy h2 { margin: 48px 0 14px; font-size: 1.65rem; }
.policy h2:first-child { margin-top: 0; }
.policy p, .policy li { color: #d1d6d0; }
.policy ul { padding-left: 22px; }
.policy li + li { margin-top: 8px; }
.policy .callout { margin: 24px 0 34px; padding: 20px; border-left: 3px solid var(--accent); border-radius: 0 12px 12px 0; background: var(--surface-soft); }
.policy .callout p { margin: 0; }

.site-footer { border-top: 1px solid var(--line); padding: 28px 0; color: var(--muted); font-size: .86rem; }
.site-footer .shell { display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.site-footer a { color: var(--ink); text-underline-offset: 3px; }

@media (max-width: 760px) {
  .shell, .policy { width: min(calc(100% - 32px), var(--max-width)); }
  .site-header .shell { min-height: 64px; }
  .brand img { width: 120px; }
  .nav { gap: 14px; font-size: .84rem; }
  .hero { padding: 72px 0 62px; }
  .hero-grid, .principle-grid { grid-template-columns: 1fr; }
  .app-card { min-height: 330px; }
  .card-icon { margin-top: 44px; }
  .principles { padding: 62px 0 76px; }
  .principle { min-height: 175px; }
  .principle h3 { margin-top: 28px; }
  .site-footer .shell { align-items: flex-start; flex-direction: column; }
}