/* Blog index, articles and password-protected previews.
 * Fin tone comes from /tokens.css (console); see docs/20261111_Blog_Fin_tone.md.
 * One reading column + contents rail. CTA positions and article art stay owned
 * by the existing templates/content. Small text uses ink-2, not dim/faint. */

:root{
  --frame:1176px;
  --measure:720px;
  --toc:248px;
  color-scheme:light;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;background:#fff;color:var(--ink);
  font-family:var(--font-sans);
  font-size:16px;line-height:var(--leading-body);-webkit-font-smoothing:antialiased;
}
p,h1,h2,h3,h4{margin:0}
/* Break Japanese headings between phrases, not inside words. */
h1,h2,h3{word-break:auto-phrase}
a{color:inherit;text-decoration:none}
button{font:inherit;border:0;background:none;cursor:pointer;color:inherit}
img{max-width:100%;height:auto;display:block}
:focus-visible{outline:2px solid var(--brand-deep);outline-offset:3px}

.skip-link{position:fixed;top:10px;left:18px;z-index:40;padding:10px 16px;background:var(--ink);color:#fff;border-radius:var(--radius-control);transform:translateY(-160%)}
.skip-link:focus{transform:translateY(0)}

.shell{width:min(100% - 64px,var(--frame));margin-inline:auto}

/* Console controls, scaled for the public site. */
.pill{
  display:inline-flex;align-items:center;justify-content:center;gap:14px;
  min-height:42px;padding:0 18px;border:1px solid transparent;border-radius:var(--radius-control);
  font-size:14px;font-weight:600;letter-spacing:0;line-height:1.5;white-space:nowrap;
  transition:background .16s,border-color .16s;
}
.pill:active{transform:translateY(1px)}
.pill--fill{background:var(--brand);color:#fff;box-shadow:var(--shadow-sm)}
.pill--fill:hover{background:var(--brand-deep)}
.pill--ghost{background:#fff;color:var(--ink);border:1px solid var(--hair)}
.pill--ghost:hover{background:var(--soft)}
.pill--large{min-height:48px;padding:0 22px;font-size:15px}
.arrow{font-family:Arial,sans-serif;font-size:19px;line-height:1}

/* ------------------------------------------------------------
   header (shared brand geometry, plus reading progress)
   ------------------------------------------------------------ */
.masthead{position:sticky;top:0;z-index:30;background:#fff;border-bottom:1px solid var(--hair)}
.masthead__in{
  height:72px;max-width:1360px;margin-inline:auto;padding:0 40px;
  display:flex;align-items:center;gap:30px;
}
.logo{display:inline-flex;align-items:center;gap:9px;flex:none;font-family:var(--font-wordmark);font-size:19px;font-weight:600;letter-spacing:-.01em}
.logo__mark{display:flex;color:var(--brand-deep)}
.logo__mark .mk{height:24px;width:auto;display:block}
.nav{display:flex;align-items:center;gap:22px}
.nav a{font-size:13.5px;font-weight:500;color:var(--ink-2);white-space:nowrap;transition:color .2s}
.nav a:hover,.nav a[aria-current]{color:var(--brand-deep);text-decoration:underline;text-underline-offset:6px}
.masthead__tail{margin-left:auto;display:flex;align-items:center;gap:8px;flex:none}
.progress{position:absolute;left:0;bottom:-1px;height:2px;width:100%;transform-origin:left}
.progress i{display:block;height:100%;width:100%;background:var(--brand);transform:scaleX(0);transform-origin:left}

.menu__toggle{display:none;position:absolute;width:1px;height:1px;opacity:0}
.menu__toggle:focus-visible ~ .masthead__in .menu__btn{outline:2px solid var(--brand-deep);outline-offset:3px;border-radius:var(--radius-sm)}
.menu__btn,.menu{display:none}
.menu__btn{
  width:44px;height:44px;flex:none;padding:7px;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
}
.menu__btn i{width:26px;height:2px;background:var(--ink);transition:translate .2s,rotate .2s,opacity .2s}
.menu__toggle:checked ~ .masthead__in .menu__btn i:nth-child(1){translate:0 7px;rotate:45deg}
.menu__toggle:checked ~ .masthead__in .menu__btn i:nth-child(2){opacity:0}
.menu__toggle:checked ~ .masthead__in .menu__btn i:nth-child(3){translate:0 -7px;rotate:-45deg}
.menu{background:#fff;padding:12px 25px 26px;border-bottom:1px solid var(--hair);box-shadow:var(--shadow-sm)}
.menu__nav{display:grid;grid-template-columns:1fr 1fr}
.menu__nav a{display:block;padding:16px 8px;font-size:14px;border-bottom:1px solid var(--hair)}
.menu__cta{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.menu__cta .pill{min-height:52px;font-size:15px}
.menu__toggle:checked ~ .menu{display:block}

/* preview of a draft; never in the public build */
.draftbar{background:var(--soft);color:var(--warn);font-size:13px;text-align:center;padding:8px 16px;border-bottom:1px solid var(--hair)}
.card--draft{border-style:dashed}
.card--draft .card__m{color:var(--warn)}

/* ------------------------------------------------------------
   article
   ------------------------------------------------------------ */
.crumbs{display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:28px 0 0;list-style:none;font-size:12.5px;color:var(--ink-2)}
.crumbs li+li::before{content:"/";margin-right:6px;color:var(--ink-2)}
.crumbs a{text-decoration:underline;text-underline-offset:3px}
.crumbs a:hover{color:var(--brand-deep)}
.crumbs [aria-current]{color:var(--ink-2)}

.post{display:grid;grid-template-columns:minmax(0,var(--measure)) var(--toc);column-gap:64px;justify-content:center;padding-bottom:40px}
.post__head{grid-column:1;padding-top:34px}
.post__body{grid-column:1;min-width:0}
.post__rail{grid-column:2;grid-row:1 / span 2}

.eyebrow{font-size:13px;font-weight:600;letter-spacing:.1em;color:var(--brand-deep)}
.post__title{margin-top:14px;font-size:38px;font-weight:700;line-height:1.45;letter-spacing:-.025em;text-wrap:pretty}
.post__meta{
  margin-top:24px;padding:16px 0;border-block:1px solid var(--hair);
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 22px;font-size:13px;color:var(--ink-2);
}
.byline{display:flex;align-items:center;gap:10px;color:var(--ink-2)}
.byline__avatar{width:32px;height:32px;color:var(--brand-deep);display:grid;place-items:center;font-family:var(--font-wordmark);font-size:14px;font-weight:600;flex:none}
.byline b{font-weight:700;color:var(--ink)}
.post__meta time{color:var(--ink-2)}
.post__meta .dt{display:inline-flex;gap:6px}

/* The answer first: what a searcher wants before they decide to read on. */
.verdict{margin-top:32px;padding:24px 28px;border:1px solid var(--hair);border-radius:var(--radius-card);background:var(--soft)}
.verdict__t{font-size:13px;font-weight:600;letter-spacing:.04em;color:var(--brand-deep)}
.verdict ul{margin:12px 0 0;padding:0;list-style:none;display:grid;gap:8px}
.verdict li{position:relative;padding-left:26px;font-size:15px;line-height:1.7;color:var(--ink)}
.verdict li::before{content:"✓";position:absolute;left:2px;top:0;font-weight:700;color:var(--brand-deep)}

/* table of contents: a fixed rail on wide screens, a fold-out on narrow ones */
.toc{position:sticky;top:96px;padding-top:34px;font-size:13px}
.toc__t{font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--ink-2)}
.toc ol{margin:14px 0 0;padding:0;list-style:none;border-left:1px solid var(--hair)}
.toc li a{display:block;padding:6px 0 6px 14px;margin-left:-1px;border-left:2px solid transparent;color:var(--ink-2);line-height:1.6;transition:color .16s,border-color .16s}
.toc li a:hover{color:var(--ink)}
.toc li a[aria-current]{color:var(--brand-deep);border-left-color:var(--brand);font-weight:600}
.toc__fold{display:none}

/* Body measure: 720px, with the console weight scale and numbered sections. */
.prose{counter-reset:h2;margin-top:44px;font-size:17px;line-height:1.85;letter-spacing:0;color:var(--ink-2)}
.prose>*+*{margin-top:1.6em}
.prose h2{
  counter-increment:h2;margin-top:3.4em;padding-top:1.3em;border-top:1px solid var(--hair);
  font-size:26px;font-weight:700;line-height:1.5;letter-spacing:-.015em;color:var(--ink);
}
.prose h2::before{content:counter(h2,decimal-leading-zero);display:block;margin-bottom:8px;font-family:var(--font-wordmark);font-size:13px;font-weight:600;letter-spacing:.12em;color:var(--brand-deep)}
.prose h2+*{margin-top:1.2em}
.prose h3{margin-top:2.2em;font-size:19px;font-weight:700;line-height:1.7;color:var(--ink)}
.prose h3+*{margin-top:.8em}
.prose strong{font-weight:700;color:var(--ink)}
/* Body links only: the CTA card's pill is also an <a> inside .prose, and
 * this selector outweighs .pill--fill, so without the guard the pill's label
 * would take the brand colour and vanish into the brand fill. */
.prose a:not(.pill){color:var(--brand-deep);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px}
.prose a,.prose code{overflow-wrap:anywhere}
.prose pre{max-width:100%;padding:16px;border:1px solid var(--hair);border-radius:var(--radius-control);background:var(--soft);white-space:pre-wrap;overflow-wrap:anywhere}
.prose ul,.prose ol{padding-left:1.4em}
.prose li+li{margin-top:.4em}
.prose li::marker{color:var(--brand-deep)}
.prose figure{margin:2em 0}
.prose img{border-radius:var(--radius-sm)}
/* Figures retain their original colors and a 720px reading width. On a phone
   only this viewport scrolls; the document stays within the screen. */
.figure-scroll{overflow-x:auto;overscroll-behavior-x:contain;border:1px solid var(--hair);border-radius:var(--radius-card);background:#fff}
.figure-scroll img{width:720px;max-width:none;border-radius:0}
.prose svg{max-width:100%;height:auto}
.prose figcaption{margin-top:10px;font-size:12.5px;color:var(--ink-2)}
.prose .note{padding:20px 24px;border:1px solid var(--hair);border-radius:var(--radius-card);background:var(--soft);font-size:14.5px;color:var(--ink)}
.prose .src{font-size:12.5px;line-height:1.85;color:var(--ink-2)}

/* comparison table: our row first, sources and the date they were read */
.tbl{width:100%;border-collapse:collapse;font-size:14px;line-height:1.75;background:#fff}
.tbl th,.tbl td{padding:12px 14px;text-align:left;vertical-align:top;border-bottom:1px solid var(--hair)}
.tbl thead th{background:var(--soft);font-weight:700;color:var(--ink);font-size:13px}
/* Headers never wrap: a wide table scrolls sideways in .tblwrap instead of breaking a heading mid-word. */
.tbl thead th{white-space:nowrap}
/* Columns the author centred in markdown (:---:), e.g. ○● marks. */
.tbl [align=center]{text-align:center}
/* Text cells keep a readable measure; mark columns stay narrow. Too wide for the column → it scrolls. */
.tbl td{min-width:13em}
.tbl td:first-child,.tbl td[align=center]{min-width:0}
.tbl tbody tr:last-child td{border-bottom:0}
.tbl td:first-child{font-weight:700;color:var(--ink);white-space:nowrap}
.tbl tr[data-ours] td{background:var(--brand-tint)}
.tbl tr[data-ours] td:first-child{color:var(--brand-deep)}
.tbl .ok{color:var(--brand-deep);font-weight:700}
.tbl .ng{color:var(--ink-2)}
/* The frame belongs to the scrolling box: a ring drawn on the table itself is clipped by the scroller and leaves broken corners.
   The backgrounds draw a shadow on the right edge while columns remain off-screen: the shadow is fixed to the box,
   the white cover rides at the end of the content (attachment: local) and slides over the shadow once the reader
   reaches it. A table that fits never shows the shadow. */
.tblwrap{
  overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--hair);border-radius:var(--radius-card);
  background:
    linear-gradient(to left,#fff 40%,rgba(255,255,255,0)) right center/48px 100% no-repeat local,
    radial-gradient(farthest-side at 100% 50%,rgba(16,40,36,.16),rgba(16,40,36,0)) right center/16px 100% no-repeat scroll,
    #fff;
}
.tblwrap .tbl{background:transparent}
/* Row names stay in view while the reader scrolls the marks sideways. */
.tbl th:first-child,.tbl td:first-child{position:sticky;left:0;z-index:1;background:#fff;box-shadow:inset -1px 0 0 var(--hair)}
.tbl thead th:first-child{background:var(--soft)}
.tbl tr[data-ours] td:first-child{background:var(--brand-tint)}
@media (max-width:600px){
  /* On a phone a long row name would eat the screen; let it wrap so the marks get the width. */
  .tbl td:first-child{white-space:normal;min-width:8.5em;max-width:10em}
}

/* in-flow call to action: a product card like the landing page's console card */
.ctacard{
  display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:26px;align-items:center;
  padding:28px 30px;border-radius:var(--radius-card);background:#fff;border:1px solid var(--hair);box-shadow:var(--shadow-sm);
}
.ctacard__k{font-size:13px;font-weight:700;letter-spacing:.04em;color:var(--brand-deep)}
.ctacard h3{margin:8px 0 0;font-size:19px;line-height:1.65;color:var(--ink)}
.ctacard p{margin-top:10px;font-size:14px;line-height:1.7;color:var(--ink-2)}
.ctacard .pill{margin-top:18px}
.ctacard img{border-radius:10px;border:1px solid var(--hair);background:var(--soft)}

/* FAQ disclosure rows, outside section numbering. */
#faq h2::before{content:"FAQ"}
.faq{border-top:1px solid var(--hair)}
.qa{border-bottom:1px solid var(--hair)}
.qa summary{
  position:relative;cursor:pointer;list-style:none;display:flex;align-items:center;gap:18px;
  padding:20px 46px 20px 4px;font-size:16px;font-weight:700;line-height:1.75;color:var(--ink);
}
.qa summary::-webkit-details-marker{display:none}
.qa summary::before{
  content:"Q";display:grid;place-content:center;flex:none;width:34px;height:34px;border-radius:50%;
  background:var(--brand-tint);color:var(--brand-deep);font-family:var(--font-wordmark);font-size:17px;font-weight:600;line-height:1;
}
.qa summary::after{content:"+";position:absolute;right:10px;top:50%;transform:translateY(-50%);font-size:26px;font-weight:400;color:var(--ink)}
.qa[open] summary::after{content:"−"}
.qa p{position:relative;padding:0 46px 22px 56px;font-size:15px;line-height:2;color:var(--ink-2)}
.qa p::before{content:"A";position:absolute;left:4px;top:0;width:34px;text-align:center;font-family:var(--font-wordmark);font-size:20px;font-weight:600;line-height:1.5;color:var(--brand-deep)}

/* end of article: author, then where to go next */
.author{margin-top:56px;display:flex;gap:18px;padding:26px;border-radius:var(--radius-card);background:var(--soft);border:1px solid var(--hair)}
.byline__avatar .mk{width:100%;height:100%}
.author .byline__avatar{width:48px;height:48px}
.author__name{font-size:15px;font-weight:700;color:var(--ink)}
.author__role{font-size:12.5px;color:var(--ink-2)}
.author p{margin-top:8px;font-size:13.5px;line-height:1.9;color:var(--ink-2)}

.next{margin-top:56px}
.next__t{font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--ink)}
.next__grid{margin-top:16px;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{display:flex;flex-direction:column;overflow:hidden;border-radius:var(--radius-card);background:#fff;border:1px solid var(--hair);transition:border-color .16s,box-shadow .16s}
.card:hover{border-color:var(--brand);box-shadow:var(--shadow-sm)}
.card:hover .card__t{text-decoration:underline;text-underline-offset:4px}
/* Thumbnails preserve the entire first figure, including its labels. */
.card__img{display:flex;align-items:center;justify-content:center;aspect-ratio:16/9;padding:20px;background:var(--soft);border-bottom:1px solid var(--hair)}
.card__img img{display:block;max-width:100%;max-height:100%;object-fit:contain}
.card__img--none .mk{width:56px;height:auto;color:var(--brand)}
.card__body{flex:1;display:flex;flex-direction:column;gap:10px;padding:22px 24px 24px}
.card__k{font-size:12px;font-weight:700;letter-spacing:.04em;color:var(--brand-deep)}
.card__t{font-size:19px;font-weight:600;line-height:1.6;color:var(--ink);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card__m{margin-top:auto;padding-top:6px;font-size:12px;color:var(--ink-2)}
.next .card__t{font-size:15px}

/* Closing contact section, separated by a shared tint and solid rules. */
.closing{margin-top:72px;padding-block:64px;background:var(--brand-tint);border-block:1px solid var(--hair)}
.closing__in{display:grid;grid-template-columns:minmax(0,1fr) 340px;align-items:center;gap:60px;max-width:1000px}
.closing h2{margin:8px 0 20px;font-size:32px;font-weight:700;line-height:1.5;letter-spacing:-.02em}
.closing p:not(.eyebrow){font-size:15px;line-height:1.7;color:var(--ink)}
.closing__btns{margin-top:30px;display:flex;flex-wrap:wrap;gap:12px}
.closing img{width:100%}

/* ------------------------------------------------------------
   index
   ------------------------------------------------------------ */
.hub{padding:72px 0 48px;max-width:900px}
.hub h1{margin-top:16px;font-size:48px;font-weight:700;line-height:1.4;letter-spacing:-.035em;text-wrap:pretty}
.hub__lead{margin:24px 0 0;max-width:760px;font-size:16px;line-height:1.7;color:var(--ink-2)}
.group{padding:40px 0 24px}
.group__head{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 18px;padding-bottom:20px;border-bottom:1px solid var(--hair)}
.group__head h2{font-size:22px;font-weight:700;line-height:1.5;letter-spacing:.02em}
.group__head p{font-size:13.5px;color:var(--ink-2)}
.group__grid{margin-top:24px;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
/* Intercom's lead article pairs a whole image with a larger title. A theme
   with one published article uses that same structure, without duplicating it. */
.group__grid > .card:only-child{grid-column:1 / -1;display:grid;grid-template-columns:1fr 1fr}
.group__grid > .card:only-child .card__img{border-bottom:0;border-right:1px solid var(--hair)}
.group__grid > .card:only-child .card__body{justify-content:center;padding:36px}
.group__grid > .card:only-child .card__t{font-size:28px;line-height:1.5;-webkit-line-clamp:unset}
.group__grid > .card:only-child .card__m{margin-top:8px}

/* ------------------------------------------------------------
   footer
   ------------------------------------------------------------ */
.foot{padding-block:44px 24px;border-top:1px solid var(--hair);background:var(--soft)}
.foot__in{display:flex;align-items:center;justify-content:space-between;gap:45px}
.foot .logo{font-size:19px}
.foot .logo__mark .mk{height:24px}
.foot__in p{max-width:420px;margin-top:13px;font-size:12px;line-height:1.9;color:var(--ink-2)}
.foot nav{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:14px 26px;font-size:13px;font-weight:500}
.foot nav a,.foot__bar a{text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--ink-2)}
.foot a:hover{color:var(--brand-deep)}
.foot__bar{display:flex;gap:20px;margin-top:38px;padding-top:20px;border-top:1px solid var(--hair);font-size:11px;color:var(--ink-2)}
.foot__bar span{margin-right:auto}

/* ------------------------------------------------------------
   narrow
   ------------------------------------------------------------ */
@media (max-width:1180px){
  .nav{display:none}
  .menu__toggle{display:block}
  .menu__btn{display:flex}
  .masthead__tail .pill--ghost{display:none}
}
@media (max-width:1080px){
  .post{grid-template-columns:minmax(0,var(--measure))}
  .post__rail{display:none}
  .toc__fold{display:block;margin-top:30px;border:1px solid var(--hair);border-radius:var(--radius-card);background:#fff;padding:0 18px}
  .toc__fold summary{cursor:pointer;list-style:none;padding:14px 0;font-size:13.5px;font-weight:700}
  .toc__fold summary::-webkit-details-marker{display:none}
  .toc__fold .toc{position:static;padding:0 0 14px}
  .toc__fold .toc__t{display:none}
  .toc__fold ol{margin-top:0}
  .next__grid,.group__grid{grid-template-columns:1fr 1fr}
  .closing__in{grid-template-columns:1fr;text-align:center}
  .closing__btns{justify-content:center}
  .closing img{max-width:300px;margin-inline:auto}
  .foot__in{flex-direction:column;align-items:flex-start;gap:25px}
  .foot nav{justify-content:flex-start;gap:12px 16px}
}
@media (max-width:767px){
  html{scroll-padding-top:76px}
  .shell{width:calc(100% - 36px)}
  .masthead__in{height:64px;padding:0 18px;gap:12px}
  .masthead__tail .pill{min-height:38px;padding:0 16px;font-size:12px}
  .post__title{font-size:28px;line-height:1.5}
  .prose{font-size:16px;line-height:1.85}
  .prose h2{font-size:21px}
  .ctacard{grid-template-columns:1fr;padding:24px}
  .ctacard img{display:none}
  .next__grid,.group__grid{grid-template-columns:1fr}
  .group__grid > .card:only-child{grid-template-columns:1fr}
  .group__grid > .card:only-child .card__img{border-right:0;border-bottom:1px solid var(--hair)}
  .group__grid > .card:only-child .card__body{padding:22px 24px 24px}
  .group__grid > .card:only-child .card__t{font-size:21px}
  .hub{padding:40px 0 16px}
  .hub h1{font-size:32px;line-height:1.45}
  .closing{padding-block:58px}
  .closing h2{font-size:25px}
  .closing__btns{flex-direction:column;align-items:stretch}
  .verdict{padding:20px}
  .qa p{padding-right:4px}
  .author{flex-direction:column}
  .foot__bar{flex-wrap:wrap;gap:12px 20px}
  .foot__bar span{flex-basis:100%}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important}
}