/* Product introduction and readable policy; cool paper, ink blue, restrained teal. */
:root {
  --bg: #f5f8fa; --surface: #ffffff; --ink: #172d3d;
  --muted: #526573; --accent: #126c70; --line: #d5e1e7;
  --display: "Trebuchet MS", "Segoe UI", sans-serif;
  --body: "Segoe UI", system-ui, sans-serif;
  color-scheme: light;
  padding-block: env(safe-area-inset-top, 0px) env(safe-area-inset-bottom, 0px);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #14222b; --surface: #1a2c37; --ink: #eef5f8;
    --muted: #b3c5cf; --accent: #81d1cd; --line: #3a515e;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #14222b; --surface: #1a2c37; --ink: #eef5f8;
  --muted: #b3c5cf; --accent: #81d1cd; --line: #3a515e;
  color-scheme: dark;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: var(--body); font-size: 17px; line-height: 1.75;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
  overflow-wrap: anywhere;
}
.wrap { max-width: 1060px; margin-inline: auto; }
header { padding-block: 26px; border-bottom: 1px solid var(--line); }
nav, .navlinks { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 26px; }
nav { justify-content: space-between; }
a { color: var(--accent); text-underline-offset: .2em; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; }
.brand { color: var(--ink); font: 700 23px var(--display); text-decoration: none; }
.navlinks { font-size: 15px; }
main { padding-block: 58px 64px; }
.eyebrow { color: var(--accent); font-size: 13px; font-weight: 700; letter-spacing: .11em; text-transform: uppercase; }
h1, h2, h3 { font-family: var(--display); line-height: 1.22; text-wrap: balance; }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); margin-block: 12px 24px; max-width: 20ch; }
h2 { font-size: 1.65rem; margin-block: 0 14px; }
h3 { font-size: 1.15rem; margin-block: 0 10px; }
p { margin-block: 0 18px; }
.lead { max-width: 65ch; color: var(--muted); font-size: 1.15rem; }
.hero { display: grid; gap: 32px; grid-template-columns: 1.4fr 1fr; align-items: start; }
.hero > *, .features > * { min-width: 0; }
.summary { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 26px; }
.summary dl { margin: 0; display: grid; gap: 16px; }
.summary dl div { display: grid; gap: 2px; }
dt { color: var(--muted); font-size: 14px; }
dd { margin: 0; font-weight: 600; }
section { margin-top: 50px; }
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.features article { border-top: 2px solid var(--accent); padding-top: 20px; }
.features p { color: var(--muted); font-size: 16px; }
.notice { padding: 22px 26px; border-left: 3px solid var(--accent); background: var(--surface); }
.notice p:last-child { margin-bottom: 0; }
.policy { max-width: 760px; }
.policy h1 { font-size: clamp(2rem, 5vw, 2.8rem); max-width: 26ch; }
.policy section { margin-top: 34px; }
.policy h2 { font-size: 1.3rem; }
ul, ol { padding-left: 1.4em; }
li + li { margin-top: 8px; }
code { font-family: Consolas, monospace; font-size: .9em; overflow-wrap: anywhere; }
.small, .date { color: var(--muted); font-size: 14px; }
.email { font-weight: 600; }
footer { border-top: 1px solid var(--line); padding-block: 24px 36px; color: var(--muted); font-size: 14px; }
footer p { margin-block: 0 8px; }
@media (max-width: 720px) {
  main { padding-block: 34px 44px; }
  .hero, .features { grid-template-columns: 1fr; }
  .summary, .notice { padding: 20px; }
  .navlinks { gap: 14px; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; } }