/* Joinery サブページ共通スタイル。トークンは LP と同じ。 */
:root {
  --paper: #F4F5F2; --sheet: #FFFFFF; --ink: #121821; --ink-2: #39424F; --muted: #5B6573;
  --line: #D8DCD6; --line-strong: #B9BFB8; --grid: rgba(18, 24, 33, 0.055);
  --accent: #F5A524; --accent-ink: #8F5300; --on-accent: #1A1408;
  --code-bg: #121821; --code-fg: #DCE3EC; --code-dim: #7D8899;
  --ok: #1F7A4D; --warn: #8F5300; --err: #B42318; --frame: #1B2230;
  --font-display: "Zen Kaku Gothic New", "Hiragino Sans", "Yu Gothic", sans-serif;
  --font-body: "IBM Plex Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --wrap: 1180px; --measure: 720px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0E131A; --sheet: #151C26; --ink: #EAEEF3; --ink-2: #C5CDD8; --muted: #8E99A8;
    --line: #243042; --line-strong: #34425A; --grid: rgba(234, 238, 243, 0.045);
    --accent-ink: #F5B544; --code-bg: #0A0E14; --frame: #0A0E14;
    --ok: #5CC795; --warn: #F5B544; --err: #FF8A80; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #0E131A; --sheet: #151C26; --ink: #EAEEF3; --ink-2: #C5CDD8; --muted: #8E99A8;
  --line: #243042; --line-strong: #34425A; --grid: rgba(234, 238, 243, 0.045);
  --accent-ink: #F5B544; --code-bg: #0A0E14; --frame: #0A0E14;
  --ok: #5CC795; --warn: #F5B544; --err: #FF8A80; color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--font-body); font-size: 16px; line-height: 1.9; -webkit-font-smoothing: antialiased; }
a { color: inherit; }
img { max-width: 100%; height: auto; display: block; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
.wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: 24px; }
@media (max-width: 480px) { .wrap { padding-inline: 16px; } }
h1, h2, h3 { font-family: var(--font-display); line-height: 1.35; margin: 0; text-wrap: balance; word-break: auto-phrase; }
.label { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent-ink); margin: 0; }
.btn { display: inline-flex; align-items: center; gap: 10px; height: 46px; padding: 0 20px; border-radius: 6px; font: 700 15px/1 var(--font-body); text-decoration: none; border: 1px solid transparent; }
.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-primary:hover { background: #E8961A; }
.btn-ghost { color: var(--ink); border-color: var(--line-strong); }
.btn-ghost:hover { border-color: var(--ink); }

/* header */
.site-header { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20; background: color-mix(in srgb, var(--paper) 88%, transparent); backdrop-filter: saturate(140%) blur(10px); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; gap: 32px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font: 900 20px/1 var(--font-display); }
.brand svg { width: 26px; height: 26px; }
.nav { display: flex; gap: 24px; font-size: 14px; color: var(--ink-2); }
.nav a { text-decoration: none; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); }
.header-cta { margin-left: auto; display: flex; gap: 12px; align-items: center; }
.header-cta .btn { height: 38px; padding: 0 16px; font-size: 14px; }
.theme-toggle { width: 38px; height: 38px; display: grid; place-items: center; background: none; border: 1px solid var(--line); border-radius: 6px; color: var(--ink-2); cursor: pointer; }
.theme-toggle svg { width: 18px; height: 18px; }
@media (max-width: 860px) { .nav { display: none; } }
@media (max-width: 420px) { .header-cta .btn { display: none; } }

/* page head */
.page-head { background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px); background-size: 8px 8px; border-bottom: 1px solid var(--line); }
.page-head .wrap { padding-block: 40px 56px; }
.crumbs { font-size: 13px; color: var(--muted); margin-bottom: 28px; }
.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; padding: 0; margin: 0; }
.crumbs li + li::before { content: "/"; margin-right: 6px; color: var(--line-strong); }
.crumbs a { text-decoration: none; }
.crumbs a:hover { text-decoration: underline; }
.page-head h1 { font-size: clamp(30px, 4.4vw, 48px); font-weight: 900; margin-top: 12px; max-width: 22em; }
.page-head .lead { font-size: 17px; color: var(--ink-2); margin: 20px 0 0; max-width: 40em; }
.meta { margin-top: 18px; font: 12.5px var(--font-mono); color: var(--muted); }
.head-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

/* layout */
.layout { display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: 64px; padding-block: 56px 96px; align-items: start; }
.layout.single { grid-template-columns: minmax(0, 1fr); }
@media (max-width: 960px) { .layout { grid-template-columns: minmax(0, 1fr); gap: 40px; } .aside { order: -1; } }
.prose { max-width: var(--measure); min-width: 0; }
.prose > * + * { margin-top: 1.1em; }
.prose h2 { font-size: clamp(22px, 2.6vw, 28px); font-weight: 900; margin-top: 2.4em; padding-top: 1.1em; border-top: 1px solid var(--line); scroll-margin-top: 88px; }
.prose h2:first-child { margin-top: 0; padding-top: 0; border-top: 0; }
.prose h3 { font-size: 19px; font-weight: 700; margin-top: 1.8em; scroll-margin-top: 88px; }
.prose p { margin-bottom: 0; color: var(--ink-2); }
.prose strong { color: var(--ink); }
.prose ul, .prose ol { padding-left: 1.4em; color: var(--ink-2); margin-bottom: 0; }
.prose li + li { margin-top: 0.35em; }
.prose a { color: var(--accent-ink); text-underline-offset: 3px; }
.prose code { font-family: var(--font-mono); font-size: 0.86em; background: color-mix(in srgb, var(--line) 55%, transparent); padding: 1px 5px; border-radius: 4px; }
.prose pre { background: var(--code-bg); color: var(--code-fg); border-radius: 8px; padding: 18px 20px; overflow-x: auto; font: 13.5px/1.7 var(--font-mono); }
.prose pre code { background: none; padding: 0; font-size: inherit; color: inherit; }
.prose pre .c { color: var(--code-dim); }
.prose pre .k { color: #F5B544; }
.prose figure { margin: 1.6em 0 0; }
.prose figure img { border-radius: 8px; border: 1px solid var(--line-strong); background: var(--frame); }
.prose figcaption { font-size: 13px; color: var(--muted); margin-top: 8px; }
.table-scroll { overflow-x: auto; }
.prose table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.prose th, .prose td { text-align: left; vertical-align: top; padding: 10px 12px 10px 0; border-bottom: 1px solid var(--line); }
.prose th { font-weight: 700; color: var(--ink); border-bottom-color: var(--line-strong); white-space: nowrap; }
.prose td { color: var(--ink-2); }
.note { border-left: 3px solid var(--accent); background: color-mix(in srgb, var(--accent) 9%, var(--paper)); padding: 14px 18px; border-radius: 0 6px 6px 0; font-size: 15px; }
.note p { margin: 0; }
.steps-list { list-style: none; padding: 0 !important; counter-reset: st; }
.steps-list > li { counter-increment: st; position: relative; padding-left: 44px; }
.steps-list > li + li { margin-top: 14px; }
.steps-list > li::before { content: counter(st); position: absolute; left: 0; top: 2px; width: 28px; height: 28px; border-radius: 50%; border: 1.5px solid var(--accent-ink); color: var(--accent-ink); font: 600 13px/25px var(--font-mono); text-align: center; }
.diagram { background: var(--sheet); border: 1px solid var(--line); border-radius: 8px; padding: 16px; overflow-x: auto; }
.diagram svg { display: block; max-width: 100%; height: auto; margin-inline: auto; }

/* aside */
.aside { position: sticky; top: 88px; display: grid; gap: 28px; font-size: 14px; }
@media (max-width: 960px) { .aside { position: static; } }
.toc h2, .related h2 { font: 600 12px var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin: 0 0 10px; }
.toc ol { list-style: none; padding: 0; margin: 0; border-left: 1px solid var(--line); }
.toc li a { display: block; padding: 5px 0 5px 14px; text-decoration: none; color: var(--ink-2); line-height: 1.5; }
.toc li a:hover { color: var(--ink); }
.cta-card { background: var(--sheet); border: 1px solid var(--line-strong); border-radius: 10px; padding: 20px; display: grid; gap: 12px; }
.cta-card p { margin: 0; color: var(--ink-2); line-height: 1.7; }
.cta-card b { font: 700 16px var(--font-display); color: var(--ink); }
.cta-card .btn { justify-content: center; }

/* end cta */
.end-cta { background: var(--code-bg); color: #E8EDF3; border-radius: 12px; padding: 32px; margin-top: 3em; display: grid; gap: 14px; }
.end-cta h2 { color: #F2F5F8; border: 0 !important; padding: 0 !important; margin: 0 !important; font-size: 24px; }
.end-cta p { color: #AEB8C6 !important; margin: 0; }
.end-cta .actions { display: flex; flex-wrap: wrap; gap: 12px; }
.end-cta .btn-ghost { color: #E8EDF3; border-color: #3A4658; }

/* related cards */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.card { display: grid; gap: 8px; background: var(--sheet); border: 1px solid var(--line); border-radius: 10px; padding: 20px; text-decoration: none; }
.card:hover { border-color: var(--line-strong); }
.card .kind { font: 600 11px var(--font-mono); letter-spacing: .08em; color: var(--accent-ink); text-transform: uppercase; }
.card b { font: 700 17px/1.45 var(--font-display); color: var(--ink); }
.card span { font-size: 14px; color: var(--ink-2); line-height: 1.7; }
.more { border-top: 1px solid var(--line); padding-block: 64px 88px; }
.more h2 { font-size: 22px; font-weight: 900; margin-bottom: 20px; }

footer.site { border-top: 1px solid var(--line); padding-block: 40px; font-size: 13px; color: var(--muted); }
footer.site .cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 24px; }
footer.site h2 { font: 600 12px var(--font-mono); letter-spacing: .08em; text-transform: uppercase; margin: 0 0 10px; color: var(--ink-2); }
footer.site ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
footer.site a { text-decoration: none; }
footer.site a:hover { color: var(--ink); }
footer.site .copy { margin-top: 28px; }
.cta-card .btn { font-size: 14px; height: auto; min-height: 44px; padding: 10px 12px; text-align: center; line-height: 1.4; }
@media (max-width: 960px) { .aside .cta-card { display: none; } }