:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #09090b;
  color: #f4f4f5;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 10% -10%, rgba(99, 102, 241, .24), transparent 31rem),
    radial-gradient(circle at 92% 3%, rgba(59, 130, 246, .12), transparent 27rem),
    #09090b;
}

a { color: inherit; }

.shell { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }

.site-header {
  min-height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border-bottom: 1px solid rgba(161, 161, 170, .16);
}

.brand {
  color: #fff;
  text-decoration: none;
  font-weight: 850;
  letter-spacing: -.04em;
  font-size: 1.25rem;
}

.brand span { color: #818cf8; }

.back-link { color: #c4b5fd; font-size: .92rem; text-decoration: none; }
.back-link:hover, .footer-links a:hover { color: #fff; }

.hero { padding: 96px 0 64px; max-width: 800px; }

.eyebrow {
  display: inline-flex;
  border: 1px solid rgba(129, 140, 248, .45);
  color: #c7d2fe;
  background: rgba(79, 70, 229, .13);
  border-radius: 999px;
  padding: 7px 12px;
  font-size: .74rem;
  font-weight: 800;
  letter-spacing: .09em;
  text-transform: uppercase;
}

h1 { margin: 20px 0 18px; max-width: 820px; font-size: clamp(2.35rem, 7vw, 4.9rem); line-height: .99; letter-spacing: -.06em; }
h2 { margin: 0 0 14px; font-size: clamp(1.55rem, 3vw, 2.35rem); letter-spacing: -.04em; }
h3 { margin: 0 0 10px; font-size: 1.12rem; }

.lead { color: #d4d4d8; font-size: clamp(1.06rem, 2vw, 1.25rem); line-height: 1.75; max-width: 760px; }
.cta-row { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; margin-top: 30px; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 21px;
  background: linear-gradient(135deg, #6366f1, #4f46e5);
  color: #fff;
  border-radius: 11px;
  text-decoration: none;
  font-weight: 800;
  box-shadow: 0 12px 32px rgba(79, 70, 229, .24);
}
.button:hover { filter: brightness(1.11); transform: translateY(-1px); }
.note { color: #a1a1aa; font-size: .9rem; }

.section { padding: 56px 0; border-top: 1px solid rgba(161, 161, 170, .14); }
.section > p { color: #d4d4d8; line-height: 1.75; max-width: 780px; }

.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 25px; }
.card { border: 1px solid rgba(161, 161, 170, .2); background: rgba(24, 24, 27, .78); border-radius: 15px; padding: 24px; }
.card p, .card li { color: #c4c4cc; line-height: 1.65; }
.card ul { padding-left: 19px; margin: 0; }

.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; counter-reset: step; margin-top: 25px; }
.step { padding-top: 54px; position: relative; }
.step::before { counter-increment: step; content: "0" counter(step); position: absolute; top: 0; color: #a5b4fc; font-weight: 900; letter-spacing: .05em; }
.step p { color: #c4c4cc; line-height: 1.65; }

.faq { display: grid; gap: 12px; margin-top: 25px; }
.faq details { border: 1px solid rgba(161, 161, 170, .19); background: rgba(24, 24, 27, .65); border-radius: 12px; padding: 17px 19px; }
.faq summary { cursor: pointer; font-weight: 750; }
.faq p { color: #c4c4cc; line-height: 1.65; margin: 13px 0 0; }

.related { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.related a { border: 1px solid rgba(129, 140, 248, .45); border-radius: 999px; color: #c7d2fe; padding: 8px 12px; font-size: .88rem; text-decoration: none; }
.related a:hover { background: rgba(79, 70, 229, .2); }

.site-footer { padding: 35px 0 50px; border-top: 1px solid rgba(161, 161, 170, .14); color: #a1a1aa; font-size: .86rem; line-height: 1.7; }
.footer-links { display: flex; flex-wrap: wrap; gap: 12px; margin: 10px 0; }
.footer-links a { text-decoration: none; }

@media (max-width: 760px) {
  .shell { width: min(100% - 30px, 1120px); }
  .hero { padding: 65px 0 46px; }
  .grid, .steps { grid-template-columns: 1fr; }
  .site-header { min-height: 62px; }
}