:root {
  color-scheme: dark;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", sans-serif;
  background: #0b0d12;
  color: #f5f7fb;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 20% 0%, rgba(104, 128, 255, 0.22), transparent 38rem),
    linear-gradient(180deg, #111620 0%, #090b10 100%);
}

main {
  width: min(760px, calc(100% - 40px));
  margin: 0 auto;
  padding: 72px 0 48px;
}

header {
  display: flex;
  gap: 18px;
  align-items: center;
  margin-bottom: 48px;
}

.app-mark {
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 18px;
  background: linear-gradient(145deg, #5a6aff, #8a53e8);
  box-shadow: 0 18px 45px rgba(49, 44, 118, 0.45);
  font-size: 30px;
}

.eyebrow, .effective {
  margin: 0 0 6px;
  color: #aeb8cb;
  font-size: 0.95rem;
}

h1 { margin: 0; font-size: clamp(2.3rem, 8vw, 4rem); letter-spacing: -0.045em; }
h2 { margin: 0 0 14px; font-size: 1.35rem; letter-spacing: -0.015em; }
p, li { color: #d1d7e2; line-height: 1.65; }
a { color: #9ba8ff; }

section {
  margin: 24px 0;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.045);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.18);
}

section > :last-child { margin-bottom: 0; }
ol, ul { padding-left: 1.4rem; }
details { padding: 14px 0; border-top: 1px solid rgba(255, 255, 255, 0.09); }
details:first-of-type { border-top: 0; }
summary { cursor: pointer; font-weight: 650; }

footer {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-top: 42px;
  color: #8d97aa;
  font-size: 0.9rem;
}

.legal {
  margin: 18px auto 0;
  max-width: 620px;
  color: #7f899c;
  font-size: 0.78rem;
  line-height: 1.5;
  text-align: center;
}

@media (max-width: 520px) {
  main { width: min(100% - 24px, 760px); padding-top: 36px; }
  header { align-items: flex-start; }
  section { padding: 20px; }
}