:root {
  color-scheme: light;
  --page: #f5f5f7;
  --surface: #ffffff;
  --ink: #1d1d1f;
  --secondary: #6e6e73;
  --line: rgba(29, 29, 31, 0.12);
  --accent: #0066cc;
  --accent-hover: #004f9e;
  --success: #16833a;
  --radius: 24px;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html { background: var(--page); }

body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(245, 245, 247, 0.92);
  backdrop-filter: saturate(180%) blur(18px);
}

.nav-inner {
  max-width: 1040px;
  min-height: 56px;
  margin: 0 auto;
  padding: 0 24px;
  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: 650;
  letter-spacing: -0.02em;
}

.brand img { width: 30px; height: 30px; border-radius: 8px; }

.nav-links { display: flex; gap: 20px; font-size: 14px; }
.nav-links a { color: var(--ink); }

main { max-width: 1040px; margin: 0 auto; padding: 72px 24px 96px; }

.hero {
  min-height: 470px;
  display: grid;
  place-items: center;
  text-align: center;
}

.hero-inner { max-width: 760px; }
.hero-icon { width: 112px; height: 112px; border-radius: 26px; box-shadow: 0 18px 50px rgba(0,0,0,.12); }

h1, h2, h3 { line-height: 1.12; letter-spacing: -0.035em; }
h1 { margin: 28px 0 16px; font-size: clamp(44px, 8vw, 76px); }
h2 { margin: 0 0 16px; font-size: clamp(30px, 4vw, 44px); }
h3 { margin: 0 0 8px; font-size: 22px; }

.lead { margin: 0 auto; max-width: 680px; color: var(--secondary); font-size: clamp(20px, 2.5vw, 27px); }
.eyebrow { color: var(--accent); font-weight: 650; }

.actions { margin-top: 30px; display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; }
.button {
  display: inline-flex;
  min-height: 48px;
  padding: 11px 22px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: white;
  font-weight: 600;
}
.button:hover { background: var(--accent-hover); color: white; text-decoration: none; }
.button.secondary { background: transparent; color: var(--accent); }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin: 28px 0 64px; }
.card {
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}
.card p { margin-bottom: 0; color: var(--secondary); }

.document { max-width: 800px; }
.document h1 { font-size: clamp(40px, 6vw, 64px); }
.document h2 { margin-top: 48px; font-size: 30px; }
.document h3 { margin-top: 30px; }
.document p, .document li { color: #3a3a3c; }
.document .updated { color: var(--secondary); }
.document table { width: 100%; border-collapse: collapse; margin: 24px 0; }
.document th, .document td { padding: 13px 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }

.notice {
  margin: 24px 0;
  padding: 18px 20px;
  border-radius: 16px;
  background: #eef6ff;
  color: #174a7c;
}

.status { color: var(--success); font-weight: 650; }

footer {
  border-top: 1px solid var(--line);
  color: var(--secondary);
  font-size: 13px;
}

.footer-inner {
  max-width: 1040px;
  margin: 0 auto;
  padding: 28px 24px 48px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

@media (max-width: 760px) {
  .nav-inner { align-items: flex-start; padding-top: 12px; padding-bottom: 12px; }
  .nav-links { gap: 12px; flex-wrap: wrap; justify-content: flex-end; }
  main { padding-top: 42px; }
  .hero { min-height: 390px; }
  .grid { grid-template-columns: 1fr; }
  .card { padding: 24px; }
}