:root {
  --bg: #ffffff;
  --fg: #141414;
  --muted: #5c5c5c;
  --line: #e6e6e6;
  --link: #1a56db;
  --card: #fafafa;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #131417;
    --fg: #ececee;
    --muted: #9a9aa2;
    --line: #2a2c31;
    --link: #7aa2ff;
    --card: #1b1d22;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, "Hiragino Sans", "Noto Sans JP", sans-serif;
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 640px; margin: 0 auto; padding: 14vh 24px 64px; }

/* logo lockup (CSS rendition of the mark) */
.mark { font-weight: 800; font-size: clamp(2.4rem, 9vw, 3.4rem); letter-spacing: -0.03em; line-height: 1; }
.mark .be { /* the meaningful suffix */ }
.tagbar {
  display: inline-block; margin-top: 12px;
  background: var(--fg); color: var(--bg);
  font-weight: 700; font-size: clamp(0.95rem, 3.4vw, 1.15rem);
  letter-spacing: -0.01em; padding: 5px 13px 6px;
}

h2 { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); margin: 3em 0 0.6em; font-weight: 700; }
.lede { font-size: 1.18rem; line-height: 1.55; margin: 2em 0 0.4em; }
.whitespace-note { color: var(--muted); font-style: italic; margin: 0.2em 0 0; }
p { color: var(--fg); }
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

.product { border: 1px solid var(--line); border-radius: 12px; background: var(--card); padding: 18px 20px; }
.product .name { font-weight: 700; font-size: 1.08rem; }
.product .desc { color: var(--muted); font-size: 0.97rem; margin-top: 3px; }
.product .status { color: var(--muted); font-size: 0.85rem; margin-top: 8px; }

.contact { margin-top: 2.4em; }
footer { margin-top: 3.2em; padding-top: 18px; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.85rem; }
footer a { color: var(--muted); text-decoration: underline; }
.tm { font-style: italic; margin-top: 10px; display: block; }