/* ONEQ 読みもの — shared article styles. Tokens mirror /index.html (:root palette incl. dark mode). */
:root {
  --bg: #f6f5f1; --surface: #ffffff; --fg: #1b2430; --muted: #5c6672;
  --line: #e4e2da; --accent: #1f6f5c; --accent-weak: #e7f1ee; --accent-fg: #ffffff;
  --navy: #16233a; --navy-fg: #eef2f7; --navy-muted: #9fb0c6; --warn: #8a5a12; --warn-bg: #fbf1dd;
  --disp: 'Zen Kaku Gothic New', 'Noto Sans JP', system-ui, sans-serif;
  --body: 'Noto Sans JP', system-ui, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #10151c; --surface: #172029; --fg: #eef2f6; --muted: #9aa6b3;
    --line: #28323d; --accent: #54bda1; --accent-weak: #16302a; --accent-fg: #07130f;
    --navy: #0c1320; --navy-fg: #eaf0f8; --navy-muted: #8fa1ba; --warn: #e3b872; --warn-bg: #2a2214;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #10151c; --surface: #172029; --fg: #eef2f6; --muted: #9aa6b3;
  --line: #28323d; --accent: #54bda1; --accent-weak: #16302a; --accent-fg: #07130f;
  --navy: #0c1320; --navy-fg: #eaf0f8; --navy-muted: #8fa1ba; --warn: #e3b872; --warn-bg: #2a2214;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--fg); font-family: var(--body); line-height: 1.85; -webkit-font-smoothing: antialiased; overflow-wrap: anywhere; }
img { max-width: 100%; }
a { color: var(--accent); text-underline-offset: 3px; }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
.wrap { max-width: 1040px; margin-inline: auto; padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }
.narrow { max-width: 760px; }
h1, h2, h3 { font-family: var(--disp); font-weight: 700; line-height: 1.35; text-wrap: balance; margin: 0; }

/* Header (same brand as LP hero) */
.site-head { background: var(--navy); color: var(--navy-fg); }
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-block: .9rem; }
.brand { display: flex; align-items: center; gap: .6rem; font-family: var(--disp); font-weight: 700; letter-spacing: .02em; color: var(--navy-fg); text-decoration: none; }
.brand .mark { width: 30px; height: 30px; border-radius: 8px; background: var(--accent); display: grid; place-items: center; color: var(--accent-fg); font-size: .95rem; }
.brand small { font-weight: 500; color: var(--navy-muted); font-size: .8rem; }
.head-nav { display: flex; gap: .9rem; font-size: .88rem; white-space: nowrap; }
.head-nav a { color: var(--navy-fg); text-decoration: none; }
.head-nav a:hover { text-decoration: underline; }

/* Breadcrumb */
.crumbs { font-size: .82rem; color: var(--muted); padding-top: 1.2rem; }
.crumbs ol { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .3rem; }
.crumbs li + li::before { content: "›"; margin-right: .3rem; color: var(--muted); }
.crumbs a { color: var(--muted); }

/* Article */
.article { padding-block: 1.2rem 3rem; }
.article-head { display: grid; gap: .7rem; margin-bottom: 1.6rem; }
.eyebrow { font-size: .78rem; letter-spacing: .14em; color: var(--accent); font-weight: 700; margin: 0; }
.article h1 { font-size: clamp(1.55rem, 5vw, 2.25rem); }
.meta { font-size: .84rem; color: var(--muted); margin: 0; }
.article h2 { font-size: clamp(1.25rem, 3.6vw, 1.55rem); margin: 2.6rem 0 .9rem; padding-top: .9rem; border-top: 1px solid var(--line); scroll-margin-top: 1rem; }
.article h3 { font-size: 1.1rem; margin: 1.8rem 0 .6rem; }
.article p { margin: 0 0 1rem; }
.article ul, .article ol { margin: 0 0 1.1rem; padding-left: 1.4rem; }
.article li { margin-bottom: .35rem; }
.article strong { font-weight: 700; }

.answer { background: var(--surface); border: 1px solid var(--line); border-left: 4px solid var(--accent); border-radius: 12px; padding: 1.1rem 1.2rem; margin-bottom: 1.4rem; }
.answer h2 { font-size: 1rem; margin: 0 0 .5rem; padding: 0; border: 0; color: var(--accent); }
.answer ul { margin: 0; }
.answer li:last-child { margin-bottom: 0; }

.toc { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 1rem 1.2rem; margin-bottom: 1rem; font-size: .93rem; }
.toc p { font-weight: 700; margin: 0 0 .4rem; font-family: var(--disp); }
.toc ol { margin: 0; }
.toc a { color: var(--fg); }

.note, .warn { border-radius: 12px; padding: 1rem 1.2rem; margin: 0 0 1.2rem; }
.note { background: var(--accent-weak); }
.warn { background: var(--warn-bg); color: var(--fg); border: 1px solid color-mix(in srgb, var(--warn) 30%, transparent); }
.note > :last-child, .warn > :last-child { margin-bottom: 0; }
.warn b, .warn strong { color: var(--warn); }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; margin: 0 0 1.2rem; max-width: 100%; }
.article table { border-collapse: collapse; width: 100%; font-size: .92rem; }
.article th, .article td { text-align: left; padding: .7rem .9rem; border-bottom: 1px solid var(--line); vertical-align: top; }
.article th { background: var(--surface); font-family: var(--disp); white-space: nowrap; }
.article tr:last-child td { border-bottom: 0; }
@media (max-width: 560px) {
  .article th { white-space: normal; }
  .article table.stack thead { display: none; }
  .article table.stack tr { display: grid; gap: .3rem; padding: .8rem .9rem; border-bottom: 1px solid var(--line); }
  .article table.stack tr:last-child { border-bottom: 0; }
  .article table.stack td { padding: 0; border: 0; }
  .article table.stack td:first-child { font-weight: 700; }
}

/* FAQ */
.faq-item { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 1rem 1.2rem; margin-bottom: .8rem; }
.faq-item h3 { margin: 0 0 .4rem; font-size: 1.02rem; }
.faq-item p { margin: 0; color: var(--fg); }

/* CTA */
.cta { background: var(--navy); color: var(--navy-fg); border-radius: 16px; padding: 1.4rem 1.4rem; margin: 2.4rem 0 1.6rem; display: grid; gap: .7rem; }
.cta h2 { color: var(--navy-fg); border: 0; margin: 0; padding: 0; font-size: 1.2rem; }
.cta p { margin: 0; color: var(--navy-muted); font-size: .95rem; }
.cta .btn { justify-self: start; display: inline-flex; font-weight: 700; text-decoration: none; border-radius: 10px; padding: .75rem 1.2rem; background: var(--accent); color: var(--accent-fg); }
.cta ul { margin: 0; padding-left: 1.2rem; }
.cta li a { color: var(--navy-fg); }
.cta .label { color: var(--navy-fg); font-weight: 700; font-size: .9rem; }

.sources { font-size: .9rem; }
.sources li { margin-bottom: .4rem; }
.disclaimer { font-size: .85rem; color: var(--muted); border-top: 1px solid var(--line); padding-top: 1rem; margin-top: 1.6rem; }
.disclaimer p { margin: 0 0 .5rem; }

/* Article index */
.list, .article .list { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); padding: 0; margin: 0; list-style: none; }
.list li { margin: 0; }
.list a.card { display: grid; gap: .4rem; height: 100%; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 1.2rem; text-decoration: none; color: var(--fg); min-width: 0; }
.list a.card:hover { border-color: var(--accent); }
.list .cat { font-size: .75rem; font-weight: 700; color: var(--accent); letter-spacing: .08em; }
.list h3, .article .list h3 { font-size: 1.05rem; margin: 0; }
.list p { color: var(--muted); font-size: .9rem; margin: 0; }
.group-title { font-size: 1.2rem; margin: 2rem 0 1rem; }

footer { border-top: 1px solid var(--line); }
footer .wrap { padding-block: 2rem; display: grid; gap: .6rem; color: var(--muted); font-size: .88rem; }
footer b { color: var(--fg); font-family: var(--disp); }
footer a { color: var(--muted); }
footer p { margin: 0; }