/* Shared chrome for the non-landing pages (privacy, support, 404).
   Colour values are copied from the landing page so the whole site reads as one
   design — keep them in sync with the <style> block in index.html. */

:root {
  --tokiwa: #007B43;
  --tokiwa-deep: #005A31;
  --tokiwa-tint: #E3EFE5;
  --ground: #F5F7F3;
  --card: #FFFFFF;
  --ink: #17251C;
  --muted: #5A6B5F;
  --line: #DCE4DB;
  --shadow: 0 1px 2px rgba(23,37,28,.05), 0 8px 24px rgba(23,37,28,.07);
  --serif: "Hiragino Mincho ProN", "Yu Mincho", "Noto Serif JP", "Iowan Old Style", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Noto Sans JP", sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --tokiwa: #1F9A62; --tokiwa-deep: #3CB57C; --tokiwa-tint: #17301F;
    --ground: #0D1410; --card: #16211A; --ink: #E6EDE7;
    --muted: #93A697; --line: #263528;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px rgba(0,0,0,.35);
  }
}
:root[data-theme="dark"] {
  --tokiwa: #1F9A62; --tokiwa-deep: #3CB57C; --tokiwa-tint: #17301F;
  --ground: #0D1410; --card: #16211A; --ink: #E6EDE7;
  --muted: #93A697; --line: #263528;
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px rgba(0,0,0,.35);
}
:root[data-theme="light"] {
  --tokiwa: #007B43; --tokiwa-deep: #005A31; --tokiwa-tint: #E3EFE5;
  --ground: #F5F7F3; --card: #FFFFFF; --ink: #17251C;
  --muted: #5A6B5F; --line: #DCE4DB;
  --shadow: 0 1px 2px rgba(23,37,28,.05), 0 8px 24px rgba(23,37,28,.07);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--tokiwa); }
a:focus-visible, summary:focus-visible {
  outline: 2px solid var(--tokiwa); outline-offset: 3px; border-radius: 4px;
}
.wrap { max-width: 1060px; margin: 0 auto; padding: 0 24px; }

/* ---- header ---- */
header.site {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--ground) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; gap: 28px; padding: 14px 0; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-weight: 650; }
.brand .mark {
  width: 34px; height: 34px; border-radius: 8px;
  background: #007B43; color: #fff;
  font-family: "Hiragino Sans", "Noto Sans JP", sans-serif;
  font-size: 12.5px; font-weight: 600;
  display: grid; place-items: center; line-height: 1; letter-spacing: .02em;
}
.nav .links { display: flex; gap: 22px; margin-left: auto; }
.nav .links a { color: var(--muted); text-decoration: none; font-size: 15px; font-weight: 500; }
.nav .links a:hover { color: var(--ink); }

/* ---- document body ---- */
.doc { max-width: 680px; margin: 0 auto; padding: 56px 24px 24px; }
.doc .eyebrow {
  font-size: 13px; font-weight: 700; letter-spacing: .14em;
  text-transform: uppercase; color: var(--tokiwa);
}
.doc h1 {
  font-family: var(--serif); font-size: clamp(32px, 4.4vw, 44px);
  font-weight: 600; line-height: 1.15; margin: 10px 0 14px; text-wrap: balance;
}
.doc .lede { font-size: 19px; color: var(--muted); margin: 0 0 28px; text-wrap: pretty; }
.doc h2 {
  font-family: var(--serif); font-size: 25px; font-weight: 600;
  margin: 40px 0 10px; text-wrap: balance;
}
.doc p, .doc li { color: var(--muted); text-wrap: pretty; }
.doc p b, .doc li b, .doc strong { color: var(--ink); }
.doc ul { padding-left: 22px; display: grid; gap: 7px; }

.note {
  background: var(--tokiwa-tint); border-left: 3px solid var(--tokiwa);
  border-radius: 0 14px 14px 0; padding: 16px 20px; margin: 26px 0;
}
.note p { margin: 0; color: var(--tokiwa-deep); }

details {
  border: 1px solid var(--line); border-radius: 14px; background: var(--card);
  padding: 4px 20px; margin-bottom: 12px;
}
details[open] { border-color: var(--tokiwa); }
summary {
  cursor: pointer; font-weight: 650; color: var(--ink); padding: 14px 0;
  list-style: none; display: flex; justify-content: space-between;
  align-items: center; gap: 16px;
}
summary::-webkit-details-marker { display: none; }
summary::after { content: "＋"; color: var(--tokiwa); font-size: 18px; flex-shrink: 0; }
details[open] summary::after { content: "－"; }
details p { margin: 0 0 16px; }

/* ---- footer ---- */
footer.site { padding: 48px 0 40px; margin-top: 40px; border-top: 1px solid var(--line); }
footer.site nav { display: flex; flex-wrap: wrap; gap: 20px; margin-bottom: 12px; font-size: 15px; }
footer.site nav a { color: var(--ink); text-decoration: none; }
footer.site nav a:hover { color: var(--tokiwa); }
footer.site p { color: var(--muted); font-size: 14px; margin: 0; }

.notfound { text-align: center; padding: 90px 24px 60px; }
.notfound .jp-pull {
  font-family: var(--serif); font-size: 64px; letter-spacing: .25em;
  color: var(--tokiwa); opacity: .5; margin: 0 0 8px;
}