:root {
    --paper: #EFF1F6; --accent: #7B9EFF; --ink: #16171A;
    --muted: #74777E; --line: #D8DAE1; --teal: #1F8A7D; --amber: #D99413;
  }
  * { box-sizing: border-box; }
  body {
    margin: 0; background: var(--paper); color: var(--ink);
    font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
    -webkit-font-smoothing: antialiased;
  }
  h1, h2 { font-family: ui-serif, "New York", Georgia, serif; font-weight: 600; line-height: 1.15; margin: 0; }
  h1 { font-size: clamp(34px, 7vw, 54px); letter-spacing: -0.01em; }
  h2 { font-size: 22px; }
  p { margin: 0; }
  a { color: inherit; }
  main { max-width: 760px; margin: 0 auto; padding: 56px 24px 72px; }

  header { display: flex; align-items: center; gap: 16px; margin-bottom: 48px; }
  header img { width: 64px; height: 64px; border-radius: 14px; }
  header span { font-size: 15px; color: var(--muted); }

  .lede { margin-top: 20px; font-size: 19px; color: var(--muted); max-width: 34em; }

  .cta { display: inline-flex; margin-top: 32px; padding: 15px 28px; border-radius: 12px;
         background: var(--accent); color: var(--ink); font-weight: 600; text-decoration: none; }
  .cta:hover { opacity: .85; }
  .cta + small { display: block; margin-top: 10px; font-size: 13px; color: var(--muted); }

  .box { background: #fff; border: 1px solid var(--line); border-radius: 10px; }

  /* the app's ticket: a semicircle bitten out of each side, stub at the bottom */
  .ticket {
    --stub: 54px;
    position: relative; background: #fff; border-radius: 10px;
    border: 1px solid var(--line); padding: 20px 22px;
    -webkit-mask: radial-gradient(circle 9px at left bottom var(--stub), #0000 99%, #000) left/51% 100% no-repeat,
                  radial-gradient(circle 9px at right bottom var(--stub), #0000 99%, #000) right/51% 100% no-repeat;
            mask: radial-gradient(circle 9px at left bottom var(--stub), #0000 99%, #000) left/51% 100% no-repeat,
                  radial-gradient(circle 9px at right bottom var(--stub), #0000 99%, #000) right/51% 100% no-repeat;
  }
  .ticket::after {
    content: ""; position: absolute; left: 12px; right: 12px; bottom: var(--stub);
    border-top: 1px dashed var(--line);
  }
  .ticket .value { font-size: 26px; font-weight: 600; }
  .ticket .issuer { color: var(--muted); font-size: 14px; }
  .ticket .foot { display: flex; justify-content: space-between; align-items: center;
                  height: var(--stub); margin-bottom: -20px; font-size: 13px; }
  .ticket .foot .code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; color: var(--muted); }
  .tag { font-weight: 600; }
  .tag.amber { color: var(--amber); }
  .tag.teal  { color: var(--teal); }

  .tickets { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); margin-top: 48px; }

  section { margin-top: 64px; }
  .features { display: grid; gap: 28px; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); }
  .features h2 { font-size: 19px; margin-bottom: 6px; }
  .features p { color: var(--muted); font-size: 15px; }
  .features .dot { display: block; width: 30px; height: 30px; border-radius: 8px;
                   background: var(--accent); opacity: .22; margin-bottom: 14px; }

  .pro li { color: var(--muted); font-size: 15px; margin-bottom: 6px; }
  .pro ul { margin: 14px 0 0; padding-left: 20px; }
  .pro .box { padding: 22px 24px; }

  footer { margin-top: 72px; padding-top: 24px; border-top: 1px solid var(--line);
           display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between;
           font-size: 13px; color: var(--muted); }

  /* legal pages */
  .prose { max-width: 40em; }
  .prose h2 { font-size: 20px; margin: 36px 0 10px; }
  .prose p, .prose li { color: var(--muted); }
  .prose li { margin-bottom: 6px; }
  .prose strong { color: var(--ink); font-weight: 600; }
  .updated { font-size: 13px; color: var(--muted); margin-top: 12px; }
  .back { display: inline-block; margin-top: 40px; font-size: 14px; color: var(--muted); }