:root {
  --bg: #ffffff;
  --surface: #f7f5fb;
  --warn: #fff4f0;
  --warnline: #ffd0c4;
  --text: #1e1b2e;
  --muted: #5f5a72;
  --line: #e6e2f0;
  --accent: #ff7a93;
  --accent2: #a56eff;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14121c;
    --surface: #1d1a28;
    --warn: #2a1d1e;
    --warnline: #4a2d2b;
    --text: #f2f0f7;
    --muted: #a9a3bd;
    --line: #2c2839;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  padding: 0 20px 80px;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}
:lang(ja) {
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN",
    "Yu Gothic", "Segoe UI", Roboto, sans-serif;
}
.wrap { max-width: 720px; margin: 0 auto; }
.wrap.narrow { max-width: 640px; }

/* Language switcher */
.langbar {
  display: flex; justify-content: flex-end; align-items: center; gap: 8px;
  padding-top: 18px;
}
.langbar svg { width: 16px; height: 16px; color: var(--muted); flex: none; }
.langbar select {
  appearance: none; -webkit-appearance: none;
  background: var(--surface); color: var(--text);
  border: 1px solid var(--line); border-radius: 10px;
  padding: 7px 30px 7px 11px; font: inherit; font-size: 14px;
  cursor: pointer; line-height: 1.2;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M2.5 4.5L6 8l3.5-3.5' fill='none' stroke='%235f5a72' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 9px center; background-size: 12px;
}
.langbar select:focus-visible { outline: 2px solid var(--accent2); outline-offset: 2px; }

/* Only one language visible once the switcher is running */
.js .i18n { display: none; }
.js .i18n.is-active { display: block; }

header { padding: 38px 0 12px; }
.mark {
  display: block; border-radius: 22.4%;
  box-shadow: 0 0 0 1px var(--line), 0 2px 8px rgba(30, 27, 46, .08);
}
.mark.lg { width: 76px; height: 76px; }
.mark.sm { width: 36px; height: 36px; }
.eyebrow {
  font-size: 13px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
h1 { font-size: 34px; line-height: 1.2; margin: 10px 0 6px; letter-spacing: -.02em; }
.lede { color: var(--muted); margin: 0 0 36px; }
.date { color: var(--muted); font-size: 14px; margin: 0 0 28px; }
h2 { font-size: 20px; margin: 38px 0 10px; letter-spacing: -.01em; }
h3 { font-size: 16px; margin: 24px 0 6px; }
p, li { color: var(--text); }
ul { padding-left: 20px; }
li { margin: 6px 0; }
a { color: var(--accent2); }

a.card {
  display: block; text-decoration: none; color: inherit;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 16px; padding: 20px 22px; margin-bottom: 12px;
  transition: border-color .15s ease;
}
a.card:hover { border-color: var(--accent2); }
a.card strong { display: block; font-size: 17px; margin-bottom: 4px; }
a.card span { color: var(--muted); font-size: 15px; }

.summary {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px 22px;
  margin: 24px 0 8px;
}
.summary h2 { margin-top: 0; }

table { border-collapse: collapse; width: 100%; margin: 14px 0; font-size: 15px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; }

.callout {
  background: var(--warn);
  border: 1px solid var(--warnline);
  border-radius: 16px;
  padding: 20px 22px;
  margin: 24px 0;
}
.callout h2 { margin-top: 0; }

footer {
  margin-top: 56px; padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--muted); font-size: 14px;
}
footer a { margin-right: 16px; }

/* The logo is language-independent, so it sits above the per-language blocks */
.brand { padding: 26px 0 18px; display: flex; align-items: center; gap: 12px; }
.brand ~ .i18n header { padding-top: 0; }