:root {
  color-scheme: light dark;
  --blue: #2f5bff;
  --cyan: #28b8d5;
  --mint: #15945d;
  --orange: #ff8a35;
  --ink: #111827;
  --muted: #5f6878;
  --canvas: #f5f7fb;
  --surface: #ffffff;
  --surface-soft: #f0f4ff;
  --line: #e1e6ef;
  --shadow: 0 18px 48px rgba(20, 38, 77, .10);
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #f8fafc;
    --muted: #b6bfcd;
    --canvas: #0d111a;
    --surface: #171d29;
    --surface-soft: #14213f;
    --line: #2a3447;
    --shadow: 0 18px 48px rgba(0, 0, 0, .30);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.58;
}
a { color: var(--blue); }
.shell { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.site-header { padding: 22px 0; }
.nav { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 760; letter-spacing: -.02em; text-decoration: none; }
.mark { display: grid; place-items: center; width: 31px; height: 31px; color: white; background: linear-gradient(135deg, var(--blue), var(--cyan)); border-radius: 10px; box-shadow: 0 6px 18px rgba(47, 91, 255, .24); font-size: 14px; letter-spacing: -.04em; }
.nav-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 18px; font-size: 14px; }
.nav-links a { color: var(--muted); text-decoration: none; }
.nav-links a:hover { color: var(--blue); }
.hero { position: relative; overflow: hidden; padding: 74px 0 62px; }
.hero::before { content: ""; position: absolute; z-index: -1; width: 560px; height: 560px; right: -170px; top: -240px; border-radius: 50%; background: radial-gradient(circle, rgba(40,184,213,.25), transparent 68%); }
.hero::after { content: ""; position: absolute; z-index: -1; width: 500px; height: 500px; left: -300px; bottom: -240px; border-radius: 50%; background: radial-gradient(circle, rgba(47,91,255,.20), transparent 68%); }
.eyebrow { margin: 0 0 14px; color: var(--blue); font-size: 13px; font-weight: 780; letter-spacing: .09em; text-transform: uppercase; }
h1, h2, h3 { color: var(--ink); letter-spacing: -.04em; line-height: 1.12; }
h1 { max-width: 760px; margin: 0; font-size: clamp(40px, 7vw, 70px); }
h2 { margin: 0; font-size: clamp(27px, 4vw, 38px); }
h3 { margin: 0 0 8px; font-size: 19px; }
.lead { max-width: 680px; margin: 22px 0 0; color: var(--muted); font-size: clamp(18px, 2.4vw, 22px); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 19px; border: 1px solid var(--blue); border-radius: 15px; background: var(--blue); color: #fff; font-weight: 700; text-decoration: none; transition: transform .18s ease, box-shadow .18s ease; }
.button:hover { box-shadow: 0 10px 24px rgba(47,91,255,.25); transform: translateY(-1px); }
.button.secondary { background: var(--surface); border-color: var(--line); color: var(--ink); }
.section { padding: 54px 0; }
.section-header { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 24px; }
.section-header p { max-width: 510px; margin: 0; color: var(--muted); }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card { padding: 24px; border: 1px solid var(--line); border-radius: 24px; background: var(--surface); box-shadow: var(--shadow); }
.feature-icon { display: grid; place-items: center; width: 42px; height: 42px; margin-bottom: 18px; border-radius: 14px; background: var(--surface-soft); color: var(--blue); font-size: 20px; }
.card p, .legal p, .legal li, .support-copy { color: var(--muted); }
.card p { margin: 0; }
.premium { background: linear-gradient(135deg, rgba(47,91,255,.10), rgba(135,91,247,.12)); }
.premium strong { color: var(--blue); }
.page-hero { padding: 54px 0 34px; }
.page-hero h1 { font-size: clamp(37px, 6vw, 56px); }
.page-hero .lead { margin-top: 14px; }
.legal { width: min(800px, 100%); padding-bottom: 32px; }
.legal .card { margin: 16px 0; }
.legal h2 { margin: 0 0 12px; font-size: 24px; }
.legal h3 { margin: 22px 0 7px; }
.legal p { margin: 0 0 12px; }
.legal ul { margin: 0; padding-left: 21px; }
.callout { border-left: 4px solid var(--orange); background: color-mix(in srgb, var(--orange) 8%, var(--surface)); }
.support-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 18px; }
.contact-card { background: linear-gradient(145deg, var(--blue), #5f57ed); color: #fff; }
.contact-card h2, .contact-card p, .contact-card a { color: #fff; }
.contact-card p { opacity: .84; }
.contact-card .button { background: #fff; border-color: #fff; color: var(--blue); }
.faq details { padding: 17px 0; border-bottom: 1px solid var(--line); }
.faq details:last-child { border-bottom: 0; }
.faq summary { cursor: pointer; color: var(--ink); font-weight: 700; }
.faq p { margin: 10px 0 0; }
footer { margin-top: 34px; padding: 28px 0 42px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 14px; }
.footer-links a { color: var(--muted); text-decoration: none; }
.footer-links a:hover { color: var(--blue); }

@media (max-width: 720px) {
  .shell { width: min(100% - 32px, 1120px); }
  .site-header { padding: 16px 0; }
  .nav { align-items: flex-start; }
  .nav-links { gap: 11px; }
  .hero { padding: 50px 0 40px; }
  .grid, .support-grid { grid-template-columns: 1fr; }
  .section { padding: 38px 0; }
  .section-header { display: block; }
  .section-header p { margin-top: 10px; }
}