:root {
  --ink: #1d1b2e; --soft: #6f6c86; --room: #f4f2f8; --card: #ffffff; --line: #e7e4ee;
  --plum: #2a2147; --violet: #6e5cf6; --wash: #eeeaff;
}
@media (prefers-color-scheme: dark) {
  :root { --ink: #eeedf5; --soft: #a3a1b8; --room: #111018; --card: #1e1d29; --line: #2d2b38; --plum: #4b3fa6; --violet: #b3a8ff; --wash: #2c2750; }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--room); color: var(--ink);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
main { max-width: 720px; margin: 0 auto; padding: 48px 20px 64px; }
header.brand { display: flex; align-items: center; gap: 14px; margin-bottom: 40px; }
header.brand img { width: 48px; height: 48px; border-radius: 12px; }
header.brand a { color: var(--ink); text-decoration: none; font-weight: 800; font-size: 20px; }
h1 { font-size: clamp(32px, 7vw, 46px); line-height: 1.08; letter-spacing: -0.02em; margin: 0 0 16px; font-weight: 850; }
h2 { font-size: 21px; line-height: 1.3; margin: 34px 0 8px; font-weight: 800; }
p, li { color: var(--soft); }
.lede { font-size: 20px; color: var(--soft); margin: 0 0 32px; }
.kicker { text-transform: uppercase; letter-spacing: 0.12em; font-size: 12px; font-weight: 800; color: var(--violet); margin: 0 0 10px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 24px; padding: 22px 24px; margin: 14px 0;
  box-shadow: 0 10px 30px rgba(29, 27, 46, 0.06); }
.card h2:first-child { margin-top: 0; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; margin: 28px 0; }
.grid .card { margin: 0; }
.grid h3 { margin: 0 0 6px; font-size: 18px; color: var(--ink); }
.grid p { margin: 0; font-size: 16px; }
a { color: var(--violet); }
.note { background: var(--wash); border-radius: 18px; padding: 16px 20px; color: var(--ink); }
footer { margin-top: 56px; padding-top: 22px; border-top: 1px solid var(--line); font-size: 15px; color: var(--soft); display: flex; flex-wrap: wrap; gap: 18px; }
footer a { color: var(--soft); text-decoration: none; font-weight: 600; }
footer a:hover { color: var(--violet); }