:root {
  --bg: #f6f7fb;
  --card: #ffffff;
  --text: #16181d;
  --muted: #667085;
  --line: #e5e7eb;
  --brand: #111827;
  --brand-soft: #eef2ff;
  --accent: #4f46e5;
  --shadow: 0 18px 50px rgba(17, 24, 39, 0.08);
  --radius: 22px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top left, #ffffff 0, var(--bg) 34%, #eef2ff 100%);
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }

.container { width: min(1080px, calc(100% - 36px)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(18px);
  background: rgba(246, 247, 251, 0.78);
  border-bottom: 1px solid rgba(229, 231, 235, 0.72);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: -0.03em;
  font-size: 1.2rem;
}
.logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  display: inline-grid;
  place-items: center;
  background: var(--brand);
  color: #fff;
  font-weight: 900;
}
.nav-links { display: flex; gap: 22px; align-items: center; color: var(--muted); font-weight: 600; }
.nav-links a.active { color: var(--text); }

.hero { padding: 86px 0 56px; text-align: center; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(79, 70, 229, 0.10);
  color: #3730a3;
  font-size: 0.9rem;
  font-weight: 700;
}

h1 {
  font-size: clamp(2.5rem, 6vw, 5rem);
  line-height: 1.2;
  letter-spacing: -0.05px;
  margin: 22px auto 18px;
  max-width: 800px;
}

.hero p { font-size: 1.18rem; color: var(--muted); max-width: 680px; margin: 0 auto 30px; }
.cta-row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 800;
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: 0 10px 30px rgba(17, 24, 39, 0.07);
}
.button.primary { background: var(--brand); color: #fff; border-color: var(--brand); }
.button.primary:hover { color: #fff; transform: translateY(-1px); }

.section { padding: 46px 0; }
.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.card {
  background: rgba(255,255,255,0.88);
  border: 1px solid rgba(229,231,235,0.9);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
}
.card h2, .card h3 { margin-top: 0; letter-spacing: -0.03em; }
.card p { color: var(--muted); }
.icon-tile {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: var(--brand-soft);
  display: grid;
  place-items: center;
  font-size: 1.4rem;
  margin-bottom: 16px;
}

.page { padding: 62px 0; }
.page-header { max-width: 780px; margin-bottom: 30px; }
.page-header h1 { text-align: left; margin-left: 0; font-size: clamp(2.3rem, 5vw, 4rem); }
.page-header p { color: var(--muted); font-size: 1.1rem; }
.content {
  background: rgba(255,255,255,0.92);
  border: 1px solid rgba(229,231,235,0.95);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: clamp(22px, 4vw, 42px);
}
.content h2 { margin-top: 34px; letter-spacing: -0.035em; }
.content h3 { margin-top: 24px; }
.content p, .content li { color: #475467; }
.content a { color: var(--accent); font-weight: 700; }
.content ul { padding-left: 22px; }
.notice {
  border-left: 4px solid var(--accent);
  background: #f5f7ff;
  padding: 14px 16px;
  border-radius: 14px;
  color: #344054;
}

.faq-list { display: grid; gap: 12px; }
details.faq {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 18px;
  padding: 0;
  overflow: hidden;
}
.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 20px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.4rem; color: var(--accent); }
.faq[open] summary::after { content: "–"; }
.faq-body { padding: 0 20px 20px; color: #475467; }
.faq-body p:first-child { margin-top: 0; }

.site-footer {
  padding: 34px 0;
  color: var(--muted);
  border-top: 1px solid rgba(229,231,235,0.8);
}
.footer-inner { display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap; }
.footer-links { display: flex; gap: 18px; flex-wrap: wrap; }

@media (max-width: 760px) {
  .nav { align-items: flex-start; gap: 18px; flex-direction: column; }
  .nav-links { gap: 14px; flex-wrap: wrap; }
  .hero { padding-top: 54px; }
  .grid { grid-template-columns: 1fr; }
  .content { border-radius: 18px; }
}