/* ==========================================================================
   Editorial pages (blog, comparativas, glosario, casos, investigación,
   herramientas). Every selector scoped under body.page-article.
   Shares the tokens from styles.css: one spacing scale (--sp-*), one radius
   scale (--r-*), DM Sans + one Instrument Serif italic accent per section.
   Layout: hero (light), answer block (dark, the citable asset), sticky TOC +
   prose column, key table, MoPッ bridge (dark), faq (shared), related,
   cta-final (shared). Desktop first; tablet (<1200) and phone (<768) at the end.
   ========================================================================== */
body.page-article { background: var(--c-bg); }
body.page-article .t-serif { font-family: var(--f-serif); font-style: italic; font-weight: 400; letter-spacing: -0.02em; }
body.page-article .ar-wrap { width: 100%; max-width: 1280px; margin: 0 auto; padding: 0 var(--sp-6); }
body.page-article .ar-eyebrow { display: inline-flex; align-items: center; gap: var(--sp-3); font-family: var(--f-switzer); font-weight: 400; font-size: 14px; line-height: 1.4; letter-spacing: 0.3em; text-transform: uppercase; color: var(--c-grey-eyebrow); }
body.page-article .ar-eyebrow::before { content: ""; width: 10px; height: 10px; border-radius: 50%; background: var(--c-purple); flex: none; }

/* ---------- Hero ---------------------------------------------------------- */
body.page-article .ar-hero { position: relative; padding: 168px 0 var(--sp-8); background: var(--c-bg); border-bottom: 1px solid var(--c-line); }
body.page-article .ar-hero .ar-wrap { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); gap: var(--sp-8); align-items: center; }
body.page-article .ar-hero__crumbs { display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-2); font-family: var(--f-mono); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--c-grey-mid); margin-bottom: var(--sp-5); }
body.page-article .ar-hero__crumbs a { color: var(--c-grey-mid); }
body.page-article .ar-hero__crumbs a:hover { color: var(--c-ink); }
body.page-article .ar-hero__crumbs span[aria-hidden] { opacity: 0.45; }
body.page-article .ar-hero__title { margin-top: var(--sp-5); font-family: var(--f-dm); font-weight: 300; font-size: 62px; line-height: 1.02; letter-spacing: -0.045em; color: var(--c-ink); }
body.page-article .ar-hero__sub { margin-top: var(--sp-5); max-width: 620px; font-family: var(--f-general); font-weight: 400; font-size: 21px; line-height: 1.4; letter-spacing: -0.015em; color: rgba(17, 16, 17, 0.72); }
body.page-article .ar-hero__sub .t-serif { font-size: 1.1em; color: var(--c-ink); }
body.page-article .ar-hero__meta { margin-top: var(--sp-6); display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-3) var(--sp-5); font-family: var(--f-mono); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--c-grey-mid); }
body.page-article .ar-hero__meta b { font-weight: 500; color: var(--c-ink); }
body.page-article .ar-hero__actions { margin-top: var(--sp-6); display: flex; flex-wrap: wrap; gap: var(--sp-3); }
body.page-article .ar-hero__alt { display: inline-flex; align-items: center; height: 50px; padding: 0 22px; border-radius: var(--r-pill); border: 1px solid var(--c-ink-20); font-family: var(--f-is); font-size: 15px; line-height: 26px; color: var(--c-ink); transition: border-color 0.2s var(--ease-out), background 0.2s var(--ease-out); }
body.page-article .ar-hero__alt:hover { border-color: var(--c-ink); background: rgba(17, 16, 17, 0.04); }
body.page-article .ar-hero__visual { position: relative; border-radius: var(--r-lg); overflow: hidden; aspect-ratio: 4 / 3; background: var(--c-dark); }
body.page-article .ar-hero__visual img { width: 100%; height: 100%; object-fit: cover; }
body.page-article .ar-hero__mascot { position: absolute; right: var(--sp-5); bottom: var(--sp-5); width: 148px; height: auto; object-fit: contain; }

/* ---------- Answer block (the citable asset) ------------------------------ */
body.page-article .ar-answer { padding: var(--sp-9) 0 0; }
body.page-article .ar-answer__card { position: relative; border-radius: var(--r-lg); background: var(--c-dark); color: var(--c-bg); padding: var(--sp-8); overflow: hidden; }
body.page-article .ar-answer__card::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--c-green); }
body.page-article .ar-answer__label { display: inline-flex; align-items: center; gap: var(--sp-2); font-family: var(--f-mono); font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; color: rgba(249, 247, 246, 0.6); }
body.page-article .ar-answer__label::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--c-green); }
body.page-article .ar-answer__text { margin-top: var(--sp-5); max-width: 900px; font-family: var(--f-dm); font-weight: 300; font-size: 26px; line-height: 1.38; letter-spacing: -0.02em; color: #f4f2ef; }
body.page-article .ar-answer__text strong { font-weight: 500; color: #fff; }
body.page-article .ar-answer__text .t-serif { color: var(--c-green); font-size: 1.08em; }

/* ---------- Layout: sticky TOC + prose ------------------------------------ */
body.page-article .ar-main { padding: var(--sp-9) 0 var(--sp-10); }
body.page-article .ar-main .ar-wrap { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: var(--sp-9); align-items: start; }
body.page-article .ar-toc { position: sticky; top: 132px; }
body.page-article .ar-toc__title { font-family: var(--f-mono); font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--c-grey-mid); margin-bottom: var(--sp-4); }
body.page-article .ar-toc__list { display: flex; flex-direction: column; gap: var(--sp-1); border-left: 1px solid var(--c-line); }
body.page-article .ar-toc__link { padding: 8px 0 8px var(--sp-4); margin-left: -1px; border-left: 2px solid transparent; font-family: var(--f-dm); font-weight: 400; font-size: 15px; line-height: 1.3; color: var(--c-grey-caption); transition: color 0.2s var(--ease-out), border-color 0.2s var(--ease-out); }
body.page-article .ar-toc__link:hover { color: var(--c-ink); }
body.page-article .ar-toc__link.is-current { color: var(--c-ink); border-left-color: var(--c-ink); font-weight: 500; }

/* ---------- Prose --------------------------------------------------------- */
body.page-article .ar-body { max-width: 780px; }
body.page-article .ar-body > * + * { margin-top: var(--sp-5); }
body.page-article .ar-body h2 { margin-top: var(--sp-9); font-family: var(--f-dm); font-weight: 300; font-size: 40px; line-height: 1.08; letter-spacing: -0.035em; color: var(--c-ink); scroll-margin-top: 132px; }
body.page-article .ar-body h2:first-child { margin-top: 0; }
body.page-article .ar-body h3 { margin-top: var(--sp-7); font-family: var(--f-dm); font-weight: 500; font-size: 24px; line-height: 1.2; letter-spacing: -0.025em; color: var(--c-ink); scroll-margin-top: 132px; }
body.page-article .ar-body p { font-family: var(--f-satoshi); font-weight: 400; font-size: 18px; line-height: 1.62; color: var(--c-text); }
body.page-article .ar-body p strong { font-weight: 700; color: var(--c-ink); }
body.page-article .ar-body p .t-serif, body.page-article .ar-body li .t-serif { font-size: 1.15em; color: var(--c-ink); }
body.page-article .ar-body a { color: var(--c-ink); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; text-decoration-color: var(--c-ink-20); transition: text-decoration-color 0.2s var(--ease-out); }
body.page-article .ar-body a:hover { text-decoration-color: var(--c-ink); }
body.page-article .ar-body ul, body.page-article .ar-body ol { display: flex; flex-direction: column; gap: var(--sp-3); padding-left: var(--sp-5); }
body.page-article .ar-body li { font-family: var(--f-satoshi); font-size: 18px; line-height: 1.55; color: var(--c-text); }
body.page-article .ar-body ul li { list-style: none; position: relative; }
body.page-article .ar-body ul li::before { content: ""; position: absolute; left: calc(var(--sp-5) * -1); top: 11px; width: 7px; height: 7px; border-radius: 50%; background: var(--c-green); }
body.page-article .ar-body ol { counter-reset: aritem; padding-left: var(--sp-6); }
body.page-article .ar-body ol li { list-style: none; position: relative; }
body.page-article .ar-body ol li::before { counter-increment: aritem; content: counter(aritem, decimal-leading-zero); position: absolute; left: calc(var(--sp-6) * -1); top: 3px; font-family: var(--f-mono); font-size: 13px; letter-spacing: 0.08em; color: var(--c-grey-mid); }
body.page-article .ar-body code { font-family: var(--f-mono); font-size: 0.9em; padding: 1px 6px; border-radius: var(--r-xs); background: rgba(17, 16, 17, 0.06); }
body.page-article .ar-body blockquote { padding: var(--sp-6); border-radius: var(--r-md); background: var(--c-white); border: 1px solid var(--c-line); font-family: var(--f-dm); font-weight: 300; font-size: 22px; line-height: 1.4; letter-spacing: -0.02em; color: var(--c-ink); }
body.page-article .ar-body blockquote cite { display: block; margin-top: var(--sp-4); font-family: var(--f-mono); font-size: 12px; font-style: normal; letter-spacing: 0.08em; text-transform: uppercase; color: var(--c-grey-mid); }

/* tables inside prose and the key table */
body.page-article .ar-table-scroll { overflow-x: auto; }
body.page-article .ar-body table, body.page-article .ar-keytable table { width: 100%; min-width: 560px; border-collapse: separate; border-spacing: 0; border: 1px solid var(--c-line); border-radius: var(--r-md); overflow: hidden; background: var(--c-white); font-family: var(--f-dm); font-size: 15px; line-height: 1.45; }
body.page-article th { text-align: left; padding: 14px 16px; background: var(--c-panel); font-weight: 600; color: var(--c-ink); border-bottom: 1px solid var(--c-line); }
body.page-article td { padding: 14px 16px; border-bottom: 1px solid var(--c-line); color: var(--c-text); vertical-align: top; }
body.page-article tr:last-child td { border-bottom: 0; }
body.page-article td:first-child { font-weight: 600; color: var(--c-ink); }

/* ---------- Key table section --------------------------------------------- */
body.page-article .ar-keytable { padding: 0 0 var(--sp-9); }
body.page-article .ar-keytable__head { display: flex; flex-direction: column; gap: var(--sp-5); margin-bottom: var(--sp-6); }
body.page-article .ar-keytable__head h2 { font-family: var(--f-dm); font-weight: 300; font-size: 44px; line-height: 1.05; letter-spacing: -0.04em; color: var(--c-ink); max-width: 760px; }
body.page-article .ar-keytable table { min-width: 680px; }

/* ---------- MoPッ bridge --------------------------------------------------- */
body.page-article .ar-bridge { padding: var(--sp-10) 0; background: var(--c-dark); color: var(--c-bg); border-radius: 70px 70px 0 0; }
body.page-article .ar-bridge .ar-wrap { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); gap: var(--sp-8); align-items: center; }
body.page-article .ar-bridge .ar-eyebrow { color: rgba(249, 247, 246, 0.55); }
body.page-article .ar-bridge .ar-eyebrow::before { background: var(--c-green); }
body.page-article .ar-bridge h2 { margin-top: var(--sp-5); font-family: var(--f-dm); font-weight: 300; font-size: 48px; line-height: 1.04; letter-spacing: -0.04em; color: #f4f2ef; }
body.page-article .ar-bridge p { margin-top: var(--sp-5); font-family: var(--f-satoshi); font-size: 18px; line-height: 1.6; color: rgba(249, 247, 246, 0.82); }
body.page-article .ar-bridge p strong { color: #fff; font-weight: 600; }
body.page-article .ar-bridge p .t-serif { color: var(--c-green); font-size: 1.12em; }
body.page-article .ar-bridge__actions { margin-top: var(--sp-6); display: flex; flex-wrap: wrap; gap: var(--sp-3); }
body.page-article .ar-bridge__ghost { display: inline-flex; align-items: center; height: 50px; padding: 0 26px; border-radius: var(--r-pill); border: 1px solid rgba(255, 255, 255, 0.22); color: #fff; font-family: var(--f-is); font-size: 15px; line-height: 26px; transition: background 0.2s var(--ease-out); }
body.page-article .ar-bridge__ghost:hover { background: rgba(255, 255, 255, 0.08); }
body.page-article .ar-bridge__visual { display: flex; justify-content: center; }
body.page-article .ar-bridge__visual img { width: 100%; max-width: 380px; height: auto; }

/* ---------- Case study proof (video quote) -------------------------------- */
body.page-article .ar-proof { padding: var(--sp-9) 0 0; }
body.page-article .ar-quote { display: grid; grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr); gap: var(--sp-7); align-items: center; padding: var(--sp-7); border-radius: var(--r-lg); background: var(--c-white); border: 1px solid var(--c-line); }
body.page-article .ar-quote__video { position: relative; display: block; border-radius: var(--r-md); overflow: hidden; aspect-ratio: 16 / 10; background: var(--c-dark); }
body.page-article .ar-quote__video img { width: 100%; height: 100%; object-fit: cover; opacity: 0.85; }
body.page-article .ar-quote__play { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); width: 64px; height: 64px; border-radius: 50%; background: var(--c-green); display: grid; place-items: center; }
body.page-article .ar-quote__play svg { width: 26px; height: 26px; fill: var(--c-ink); margin-left: 3px; }
body.page-article .ar-quote__text { font-family: var(--f-dm); font-weight: 300; font-size: 24px; line-height: 1.38; letter-spacing: -0.02em; color: var(--c-ink); }
body.page-article .ar-quote__who { margin-top: var(--sp-5); display: flex; align-items: center; gap: var(--sp-3); }
body.page-article .ar-quote__who img { width: 48px; height: 48px; border-radius: 50%; object-fit: cover; }
body.page-article .ar-quote__name { font-family: var(--f-dm); font-weight: 600; font-size: 16px; color: var(--c-ink); }
body.page-article .ar-quote__role { font-family: var(--f-satoshi); font-size: 14px; color: var(--c-grey-caption); }

/* ---------- Calculator ---------------------------------------------------- */
body.page-article .ar-calc { padding: 0 0 var(--sp-9); }
body.page-article .ar-calc__panel { display: grid; grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr); gap: var(--sp-7); padding: var(--sp-7); border-radius: var(--r-lg); background: var(--c-white); border: 1px solid var(--c-line); }
body.page-article .ar-calc__field { display: flex; flex-direction: column; gap: var(--sp-2); }
body.page-article .ar-calc__field + .ar-calc__field { margin-top: var(--sp-5); }
body.page-article .ar-calc__field label { font-family: var(--f-mono); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--c-grey-mid); }
body.page-article .ar-calc__field select, body.page-article .ar-calc__field input { height: 50px; padding: 0 var(--sp-4); border-radius: var(--r-xs); border: 1px solid var(--c-ink-20); background: var(--c-bg); font-family: var(--f-dm); font-size: 17px; color: var(--c-ink); }
body.page-article .ar-calc__field select:focus-visible, body.page-article .ar-calc__field input:focus-visible { outline: 2px solid var(--c-ink); outline-offset: 2px; }
body.page-article .ar-calc__out { display: flex; flex-direction: column; justify-content: center; padding: var(--sp-6); border-radius: var(--r-md); background: var(--c-dark); color: var(--c-bg); }
body.page-article .ar-calc__outlabel { font-family: var(--f-mono); font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; color: rgba(249, 247, 246, 0.6); }
body.page-article .ar-calc__total { margin-top: var(--sp-3); font-family: var(--f-dm); font-weight: 300; font-size: 58px; line-height: 1; letter-spacing: -0.04em; color: var(--c-green); }
body.page-article .ar-calc__rows { margin-top: var(--sp-5); display: flex; flex-direction: column; gap: var(--sp-2); }
body.page-article .ar-calc__row { display: flex; justify-content: space-between; gap: var(--sp-4); padding-bottom: var(--sp-2); border-bottom: 1px solid rgba(255, 255, 255, 0.12); font-family: var(--f-dm); font-size: 15px; color: rgba(249, 247, 246, 0.85); }
body.page-article .ar-calc__row b { font-weight: 500; color: #fff; }
body.page-article .ar-calc__note { margin-top: var(--sp-5); font-family: var(--f-satoshi); font-size: 14px; line-height: 1.5; color: rgba(249, 247, 246, 0.6); }
body.page-article .ar-calc__source { margin-top: var(--sp-4); font-family: var(--f-mono); font-size: 12px; line-height: 1.6; letter-spacing: 0.04em; color: var(--c-grey-mid); }
body.page-article .ar-calc__source a { color: var(--c-grey-mid); text-decoration: underline; }

/* ---------- Related ------------------------------------------------------- */
body.page-article .ar-related { padding: var(--sp-9) 0; background: var(--c-white); }
body.page-article .ar-related__head { display: flex; flex-direction: column; gap: var(--sp-5); margin-bottom: var(--sp-7); }
body.page-article .ar-related__head h2 { font-family: var(--f-dm); font-weight: 300; font-size: 44px; line-height: 1.05; letter-spacing: -0.04em; color: var(--c-ink); }
body.page-article .ar-related__grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--sp-4); }
body.page-article .ar-related__card { display: flex; flex-direction: column; gap: var(--sp-3); padding: var(--sp-6); border-radius: var(--r-md); background: var(--c-bg); border: 1px solid var(--c-line); font-family: var(--f-dm); font-weight: 500; font-size: 20px; line-height: 1.2; letter-spacing: -0.02em; color: var(--c-ink); transition: border-color 0.2s var(--ease-out); }
body.page-article .ar-related__card:hover { border-color: var(--c-ink); }
body.page-article .ar-related__card span { font-family: var(--f-mono); font-weight: 400; font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--c-grey-mid); }

/* ---------- Sources ------------------------------------------------------- */
body.page-article .ar-sources { padding: var(--sp-8) 0; background: var(--c-white); border-top: 1px solid var(--c-line); }
body.page-article .ar-sources h2 { font-family: var(--f-mono); font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--c-grey-mid); margin-bottom: var(--sp-4); }
body.page-article .ar-sources ol { display: flex; flex-direction: column; gap: var(--sp-2); padding-left: var(--sp-5); }
body.page-article .ar-sources li { font-family: var(--f-satoshi); font-size: 15px; line-height: 1.5; color: var(--c-grey-caption); }
body.page-article .ar-sources a { color: var(--c-grey-caption); text-decoration: underline; text-underline-offset: 3px; }
body.page-article .ar-sources a:hover { color: var(--c-ink); }

/* ---------- FAQ heading override ------------------------------------------ */
body.page-article .faq { background: var(--c-bg); }

/* ---------- Tablet (<1200) ------------------------------------------------ */
@media (max-width: 1199px) {
  body.page-article .ar-hero { padding-top: 140px; }
  body.page-article .ar-hero .ar-wrap { grid-template-columns: 1fr; gap: var(--sp-7); }
  body.page-article .ar-hero__title { font-size: 50px; }
  body.page-article .ar-hero__visual { aspect-ratio: 16 / 9; }
  body.page-article .ar-main .ar-wrap { grid-template-columns: 1fr; gap: var(--sp-7); }
  body.page-article .ar-toc { position: static; }
  body.page-article .ar-toc__list { flex-direction: row; flex-wrap: wrap; border-left: 0; gap: var(--sp-2); }
  body.page-article .ar-toc__link { padding: 8px 14px; border: 1px solid var(--c-line); border-radius: var(--r-pill); background: var(--c-white); }
  body.page-article .ar-toc__link.is-current { border-color: var(--c-ink); }
  body.page-article .ar-body { max-width: none; }
  body.page-article .ar-answer__text { font-size: 23px; }
  body.page-article .ar-bridge .ar-wrap { grid-template-columns: 1fr; }
  body.page-article .ar-bridge__visual { order: -1; }
  body.page-article .ar-quote { grid-template-columns: 1fr; }
  body.page-article .ar-calc__panel { grid-template-columns: 1fr; }
  body.page-article .ar-related__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ---------- Phone (<768) -------------------------------------------------- */
@media (max-width: 767px) {
  body.page-article .ar-wrap { padding: 0 var(--sp-5); }
  body.page-article .ar-hero { padding: 116px 0 var(--sp-7); }
  body.page-article .ar-hero__title { font-size: 36px; letter-spacing: -0.035em; }
  body.page-article .ar-hero__sub { font-size: 18px; }
  body.page-article .ar-hero__mascot { width: 96px; }
  body.page-article .ar-answer { padding-top: var(--sp-7); }
  body.page-article .ar-answer__card { padding: var(--sp-6); border-radius: var(--r-md); }
  body.page-article .ar-answer__text { font-size: 20px; }
  body.page-article .ar-main { padding: var(--sp-7) 0 var(--sp-8); }
  body.page-article .ar-body h2 { font-size: 30px; margin-top: var(--sp-8); }
  body.page-article .ar-body h3 { font-size: 21px; }
  body.page-article .ar-body p, body.page-article .ar-body li { font-size: 17px; }
  body.page-article .ar-keytable__head h2, body.page-article .ar-related__head h2 { font-size: 32px; }
  body.page-article .ar-bridge { padding: var(--sp-8) 0; border-radius: var(--r-lg) var(--r-lg) 0 0; }
  body.page-article .ar-bridge h2 { font-size: 34px; }
  body.page-article .ar-quote { padding: var(--sp-5); }
  body.page-article .ar-quote__text { font-size: 20px; }
  body.page-article .ar-calc__panel { padding: var(--sp-5); }
  body.page-article .ar-calc__total { font-size: 44px; }
  body.page-article .ar-related__grid { grid-template-columns: 1fr; }
}