:root {
  color: #18231f;
  background: #f6f8f7;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 8% -6%, rgba(78, 70, 229, 0.1), transparent 28rem),
    radial-gradient(circle at 92% 4%, rgba(29, 133, 95, 0.1), transparent 30rem),
    #f6f8f7;
}

a { color: #285fbc; text-underline-offset: 0.18em; }

.site-header {
  width: min(100% - 32px, 920px);
  margin: 18px auto 0;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px solid rgba(24, 35, 31, 0.08);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 12px 40px rgba(31, 43, 38, 0.06);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  color: #18231f;
  font-size: 17px;
  font-weight: 750;
  text-decoration: none;
}

.brand-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  color: white;
  background: linear-gradient(145deg, #5b52ea, #7258cf 48%, #1f8f68);
  box-shadow: 0 7px 18px rgba(79, 70, 229, 0.24);
}

nav { display: flex; gap: 4px; }
nav a {
  padding: 8px 11px;
  border-radius: 10px;
  color: #59635f;
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
}
nav a:hover, nav a.active { color: #37318f; background: #efedff; }

main {
  width: min(100% - 32px, 860px);
  margin: 34px auto;
  padding: clamp(28px, 6vw, 68px);
  border: 1px solid rgba(24, 35, 31, 0.08);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 22px 70px rgba(31, 43, 38, 0.08);
}

.eyebrow {
  margin-bottom: 14px;
  color: #4f46e5;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  color: #111916;
  font-size: clamp(38px, 7vw, 62px);
  line-height: 0.98;
  letter-spacing: -0.052em;
}

.updated { margin: 18px 0 0; color: #707a76; font-size: 14px; }
.lead {
  max-width: 690px;
  margin: 28px 0 48px;
  color: #3c4742;
  font-size: clamp(19px, 3vw, 23px);
  line-height: 1.55;
}

section { padding: 28px 0 0; border-top: 1px solid #e9eeec; }
section + section { margin-top: 28px; }
h2 {
  margin: 0 0 14px;
  color: #18231f;
  font-size: 22px;
  line-height: 1.3;
  letter-spacing: -0.02em;
}
h3 { margin: 22px 0 7px; color: #34403a; font-size: 16px; }
p, li { color: #4e5a55; font-size: 16px; line-height: 1.78; }
p { margin: 10px 0 0; }
ul { margin: 10px 0 0; padding-left: 23px; }
li + li { margin-top: 7px; }
footer { padding: 0 24px 42px; color: #7a8580; font-size: 13px; text-align: center; }

@media (max-width: 560px) {
  .site-header { width: min(100% - 20px, 920px); margin-top: 10px; }
  main { width: min(100% - 20px, 860px); margin: 18px auto; border-radius: 22px; }
  .brand span:last-child { display: none; }
}