/* A Jones v4 — GUIDES family: library hub, articles, specialist guides, search */

/* ------------------------------------------------------------ shared bits */
.aj4-guides-meta{display:flex;flex-wrap:wrap;align-items:center;gap:6px 14px;margin:0;font:400 .7rem/1.3 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.aj4-guides-meta span{display:inline-flex;align-items:center;gap:6px}
.aj4-guides-meta .aj-icon{width:14px;height:14px}
.aj4-guides-meta__topic{color:var(--blue)}
.aj4-guides-checklist{list-style:none;padding:0!important;display:grid;gap:10px}
.aj4-guides-checklist li{position:relative;padding-left:34px;margin:0!important}
.aj4-guides-checklist li::before{content:"";position:absolute;left:0;top:.2em;width:22px;height:22px;border-radius:50%;background:var(--sky-2) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='m7 12.5 3.2 3L17 9' fill='none' stroke='%2304548d' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/16px no-repeat}
@keyframes aj4-g-in{from{opacity:0;transform:translateY(14px)}}

/* ------------------------------------------------------------ reading hero */
.aj4-guides-hero .aj4-hero__inner{grid-template-columns:minmax(0,1.35fr) minmax(260px,.65fr);gap:28px clamp(32px,5vw,80px);align-items:end}
.aj4-guides-hero .aj4-crumbs{grid-column:1/-1}
.aj4-guides-hero .aj4-hero__copy{max-width:none}
.aj4-guides-hero .aj4-hero__title{font-size:clamp(2.3rem,1.4rem + 3vw,4.4rem);max-width:19ch;margin-bottom:26px}
.aj4-guides-hero .aj4-guides-title--mid{font-size:clamp(2.1rem,1.3rem + 2.6vw,3.8rem);max-width:21ch}
.aj4-guides-hero .aj4-guides-title--long{font-size:clamp(1.75rem,1.15rem + 2.1vw,3.25rem);max-width:24ch;line-height:1.02}
.aj4-guides-hero .aj4-hero__intro{margin-bottom:26px}
.aj4-guides-hero .aj4-hero__aside{align-self:end}
.aj4-guides-herofig{position:relative;border-radius:var(--radius);overflow:hidden;background:var(--navy);box-shadow:0 0 0 1px rgba(255,255,255,.12),var(--shadow-3)}
.aj4-guides-herofig figcaption{display:grid;gap:4px;padding:12px 16px 14px;font-size:.84rem;line-height:1.45;color:var(--on-dark-muted);background:rgba(6,26,44,.6)}
.aj4-guides-herofig figcaption .aj4-mono{font-size:.66rem;text-transform:uppercase;color:var(--sky)}
.aj4-guides-byline{display:flex;flex-wrap:wrap;align-items:center;gap:12px 22px;font-size:.92rem}
.aj4-guides-byline>span{display:grid;line-height:1.3}
.aj4-guides-byline small{font:400 .64rem/1.4 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--on-dark-muted)}
.aj4-guides-byline a{font-weight:600;background:linear-gradient(currentColor,currentColor) 0 100%/100% 1px no-repeat;padding-bottom:1px;transition:background-size .4s var(--ease)}
.aj4-guides-byline a:hover{background-size:0 1px}
.aj4-guides-byline time{font-weight:600}
.aj4-guides-byline .aj4-guides-byline__mark{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;background:#fff;color:var(--blue)}
.aj4-guides-byline__mark svg{width:20px;height:24px}
.aj4-guides-byline__when{padding-left:22px;border-left:1px solid rgba(255,255,255,.18)}
@media (max-width:960px){
  .aj4-guides-hero .aj4-hero__inner{grid-template-columns:1fr}
  .aj4-guides-herofig .aj4-img{aspect-ratio:16/9}
}

/* hub split hero: index panel */
.aj4-guides .aj4-hero--split .aj4-crumbs{grid-column:1/-1}
.aj4-guides .aj4-hero--split .aj4-hero__inner{align-items:end}
.aj4-guides .aj4-hero--split .aj4-hero__title{font-size:clamp(2.5rem,1.3rem + 3.6vw,4.7rem);max-width:13ch}
.aj4-guides .aj4-hero--split .aj4-hero__aside{max-width:440px;justify-self:end;width:100%}
.aj4-guides-index{border-radius:var(--radius);background:rgba(6,26,44,.55);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);box-shadow:inset 0 0 0 1px rgba(255,255,255,.14);padding:8px 8px 6px}
.aj4-guides-index__head{display:flex;justify-content:space-between;margin:0;padding:10px 12px 12px;font:400 .68rem var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--on-dark-muted)}
.aj4-guides-index ul{list-style:none}
.aj4-guides-index a{display:flex;align-items:center;gap:12px;min-height:48px;padding:8px 12px;border-radius:12px;border-top:1px solid rgba(255,255,255,.08);font-weight:550;transition:background .3s,padding .4s var(--ease)}
.aj4-guides-index li:first-child a{border-top:0}
.aj4-guides-index a:hover{background:rgba(255,255,255,.1);padding-left:16px}
.aj4-guides-index a span{flex:1}
.aj4-guides-index .aj-icon{width:18px;height:18px;color:var(--sky)}
.aj4-guides-index b{font-weight:400;font-size:.78rem;color:var(--on-dark-muted)}
@media (max-width:960px){.aj4-hero--split .aj4-guides-index{display:none}}

/* ------------------------------------------------------------ start-here path */
.aj4-guides-path{list-style:none;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:var(--gap);counter-reset:none;position:relative}
.aj4-guides-path::before{content:"";position:absolute;left:0;right:0;top:27px;height:1px;background:repeating-linear-gradient(90deg,var(--line-2) 0 6px,transparent 6px 12px)}
.aj4-guides-path__step a{position:relative;display:flex;flex-direction:column;gap:10px;height:100%;padding:0 0 4px}
.aj4-guides-path__n{display:inline-flex;align-items:baseline;gap:6px;align-self:flex-start;padding:12px 16px;border-radius:14px;background:var(--white);box-shadow:inset 0 0 0 1px var(--line);font-size:1.5rem;font-weight:550;letter-spacing:-.04em;line-height:1;transition:background .4s,color .4s}
.aj4-guides-path__n .aj4-mono{font-size:.62rem;text-transform:uppercase;color:var(--muted);transition:color .4s}
.aj4-guides-path__step a:hover .aj4-guides-path__n{background:var(--ink);color:#fff}
.aj4-guides-path__step a:hover .aj4-guides-path__n .aj4-mono{color:var(--sky)}
.aj4-guides-path__kind{margin-top:8px;font-size:.66rem;text-transform:uppercase;color:var(--blue)}
.aj4-guides-path h3{margin:0;font-size:1.22rem}
.aj4-guides-path p{margin:0;color:var(--muted);font-size:.95rem;line-height:1.55}
.aj4-guides-path .aj4-card__cta{padding-top:4px}
.aj4-guides-path__step a:hover .aj4-card__cta .aj-icon{transform:translateX(5px)}
@media (max-width:1100px){
  .aj4-guides-path{grid-template-columns:none;grid-auto-flow:column;grid-auto-columns:minmax(240px,32%);overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;padding-bottom:6px}
  .aj4-guides-path::-webkit-scrollbar{display:none}
  .aj4-guides-path>*{scroll-snap-align:start}
  .aj4-guides-path__step a{padding:20px;border-radius:var(--radius);background:var(--white);box-shadow:inset 0 0 0 1px var(--line)}
}
@media (max-width:760px){.aj4-guides-path{grid-auto-columns:78%;margin-inline:calc(var(--gutter) * -1);padding-inline:var(--gutter);scroll-padding-inline:var(--gutter)}.aj4-guides-path::before{display:none}}

/* ------------------------------------------------------------ library toolbar */
.aj4-guides-bar{position:sticky;top:calc(var(--header-h) + 12px);z-index:20;display:grid;grid-template-columns:minmax(220px,300px) minmax(0,1fr);align-items:center;gap:12px 16px;margin-bottom:var(--gap);padding:10px;border-radius:20px;background:rgba(255,255,255,.9);backdrop-filter:saturate(1.6) blur(16px);-webkit-backdrop-filter:saturate(1.6) blur(16px);box-shadow:inset 0 0 0 1px var(--line),var(--shadow-1);transition:top .5s var(--ease)}
html:has(.aj4-header.is-hidden) .aj4-guides-bar{top:12px}
.aj4-guides-bar__status{grid-column:1/-1;margin:0;padding:0 8px 2px;font-size:.68rem;text-transform:uppercase;color:var(--muted)}
.aj4-guides-bar--results{grid-template-columns:1fr}
.no-js .aj4-guides-chips,.no-js .aj4-guides-bar__status{display:none}
.aj4-guides-chips{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;mask-image:linear-gradient(90deg,#000 calc(100% - 28px),transparent);-webkit-mask-image:linear-gradient(90deg,#000 calc(100% - 28px),transparent);padding-right:24px}
.aj4-guides-chips::-webkit-scrollbar{display:none}
.aj4-guides-chips .aj4-chip{flex:none;min-height:42px;padding-inline:12px;white-space:nowrap}
.aj4-guides-chips .aj-icon{width:16px;height:16px}
.aj4-guides-chips .aj4-chip span{font-size:.66rem;opacity:.7}
.aj4-guides-search{position:relative;display:flex;align-items:center}
.aj4-guides-search>.aj-icon{position:absolute;left:16px;width:19px;height:19px;color:var(--muted);pointer-events:none}
.aj4-guides-search__input{width:100%;min-height:50px;color:var(--ink);padding:12px 88px 12px 46px;border-radius:14px;border:1.5px solid var(--line-2);background:var(--white);font-size:1rem;appearance:none;-webkit-appearance:none;transition:border-color .25s,box-shadow .25s}
.aj4-guides-search__input::-webkit-search-cancel-button{display:none}
.aj4-guides-search__input:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px rgba(4,84,141,.14)}
.aj4-guides-search__kbd{position:absolute;right:12px;display:grid;place-items:center;min-width:26px;height:26px;border-radius:7px;box-shadow:inset 0 0 0 1px var(--line-2),0 1px 0 var(--line-2);font:400 .75rem var(--mono);color:var(--muted)}
.aj4-guides-search__input:focus~.aj4-guides-search__kbd,.aj4-guides-search.has-value .aj4-guides-search__kbd{display:none}
.aj4-guides-search__clear{position:absolute;right:6px;display:grid;place-items:center;width:40px;height:40px;border-radius:10px;color:var(--muted)}
.aj4-guides-search__clear:hover{background:var(--paper);color:var(--ink)}
.aj4-guides-search--hero{max-width:640px;width:100%}
.aj4-guides-search--hero .aj4-guides-search__input{min-height:60px;padding-right:120px;border-color:transparent;border-radius:999px;box-shadow:var(--shadow-3)}
.aj4-guides-search--hero>.aj-icon{left:20px}
.aj4-guides-search--hero .aj4-guides-search__input{padding-left:52px}
.aj4-guides-search__go{position:absolute;right:6px;min-height:48px;padding:0 22px;border-radius:999px;background:var(--blue);color:#fff;font-weight:600;transition:background .3s}
.aj4-guides-search__go:hover{background:var(--ink)}
@media (max-width:960px){
  .aj4-guides-bar{top:calc(var(--header-h) + 8px);grid-template-columns:1fr;padding:8px;border-radius:18px;margin-inline:-6px}
  .aj4-guides-search__kbd{display:none}
}

/* ------------------------------------------------------------ spotlight */
.aj4-guides-spot{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);margin-bottom:var(--gap);border-radius:var(--radius-lg);overflow:hidden;background:var(--ink);color:var(--on-dark)}
.aj4-guides-spot__media{position:relative;display:block;min-height:100%}
.aj4-guides-spot__media .aj4-img{position:absolute;inset:0;height:100%;aspect-ratio:auto}
.aj4-guides-spot__media .aj4-img img{transition:opacity .8s var(--ease),transform 1.4s var(--ease)}
.aj4-guides-spot:hover .aj4-guides-spot__media .aj4-img.is-loaded img{transform:scale(1.04)}
.aj4-guides-spot__tag{position:absolute;left:16px;top:16px;display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:rgba(6,26,44,.72);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);font-size:.66rem;text-transform:uppercase;color:#fff}
.aj4-guides-spot__body{display:flex;flex-direction:column;gap:16px;padding:clamp(24px,3.4vw,48px)}
.aj4-guides-spot .aj4-guides-meta{color:var(--on-dark-muted)}
.aj4-guides-spot .aj4-guides-meta__topic{color:var(--sky)}
.aj4-guides-spot__title{margin:0;font-size:clamp(1.6rem,1.1rem + 1.6vw,2.5rem);max-width:18ch}
.aj4-guides-spot__title a:hover{text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:5px}
.aj4-guides-spot__copy{margin:0;color:var(--on-dark-muted);max-width:52ch}
.aj4-guides-spot .aj4-dim{color:var(--on-dark-muted);margin-top:4px}
.aj4-guides-spot__toc{list-style:none;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 20px;font-size:.92rem}
.aj4-guides-spot__toc li{display:flex;gap:10px;line-height:1.35}
.aj4-guides-spot__toc .aj4-mono{color:var(--sky);font-size:.68rem;padding-top:3px}
.aj4-guides-spot .aj4-btn{align-self:flex-start;margin-top:auto}
@media (max-width:900px){
  .aj4-guides-spot{grid-template-columns:1fr}
  .aj4-guides-spot__media{min-height:0}.aj4-guides-spot__media .aj4-img{position:relative;aspect-ratio:16/10}
}
@media (max-width:560px){.aj4-guides-spot__toc{grid-template-columns:1fr}.aj4-guides-spot .aj4-btn{align-self:stretch;justify-content:space-between}}

/* ------------------------------------------------------------ cards + grid */
.aj4-guides-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
@media (max-width:1100px){.aj4-guides-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.aj4-guides-card{height:100%}
.aj4-guides-card.is-shown{animation:aj4-g-in .55s var(--ease) both}
.aj4-guides-card__link{display:flex;flex-direction:column;height:100%;border-radius:var(--radius);overflow:hidden;background:var(--white);box-shadow:inset 0 0 0 1px var(--line);transition:transform .6s var(--ease),box-shadow .6s var(--ease)}
.aj4-guides-card__link:hover{transform:translateY(-4px);box-shadow:inset 0 0 0 1px transparent,var(--shadow-2)}
.aj4-guides-card__media{position:relative;overflow:hidden}
.aj4-guides-card__media .aj4-img img{transition:opacity .8s var(--ease),transform 1.2s var(--ease)}
.aj4-guides-card__link:hover .aj4-img.is-loaded img{transform:scale(1.05)}
.aj4-guides-card__badge{position:absolute;left:12px;top:12px;padding:6px 10px;border-radius:999px;background:rgba(255,255,255,.92);color:var(--ink);font:400 .62rem/1 var(--mono);letter-spacing:.07em;text-transform:uppercase}
.aj4-guides-card__badge.is-guide{background:var(--blue);color:#fff}
.aj4-guides-card__body{display:flex;flex-direction:column;gap:10px;flex:1;padding:20px 22px 22px}
.aj4-guides-card__title{margin:0;font-size:1.25rem;line-height:1.16}
.aj4-guides-card__copy{margin:0;color:var(--muted);font-size:.95rem;line-height:1.55}
.aj4-guides-card__link:hover .aj4-card__cta .aj-icon{transform:translateX(5px)}
@media (max-width:640px){
  .aj4-guides-grid{grid-template-columns:1fr;gap:10px}
  .aj4-guides-grid .aj4-guides-card__link{display:grid;grid-template-columns:104px minmax(0,1fr);align-items:stretch}
  .aj4-guides-grid .aj4-guides-card__media .aj4-img{height:100%;aspect-ratio:auto;min-height:118px}
  .aj4-guides-grid .aj4-guides-card__badge,.aj4-guides-grid .aj4-guides-card__copy,.aj4-guides-grid .aj4-card__cta{display:none}
  .aj4-guides-grid .aj4-guides-card__body{gap:8px;padding:14px 16px}
  .aj4-guides-grid .aj4-guides-card__title{font-size:1.06rem;line-height:1.22}
}

/* empty state */
.aj4-guides-empty{display:grid;justify-items:center;text-align:center;gap:12px;padding:clamp(32px,5vw,64px) 20px;border-radius:var(--radius);background:var(--paper);box-shadow:inset 0 0 0 1px var(--line)}
.aj4-guides-empty h3{margin:0;font-size:1.4rem;max-width:26ch}
.aj4-guides-empty p{margin:0;max-width:52ch;color:var(--muted)}
.aj4-guides-empty p button{color:var(--blue);font-weight:600;text-decoration:underline;text-underline-offset:3px}
.aj4-guides-empty .aj4-actions{justify-content:center;margin-top:6px}
.aj4-guides-empty__icon{display:grid;place-items:center;width:56px;height:56px;border-radius:50%;background:var(--white);box-shadow:inset 0 0 0 1px var(--line);color:var(--blue)}

/* ------------------------------------------------------------ tools + method */
.aj4-guides-tools__grid{list-style:none;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;border-radius:var(--radius);overflow:hidden;background:var(--line-dark);box-shadow:0 0 0 1px var(--line-dark)}
.aj4-guides-tools__grid a{position:relative;display:grid;grid-template-columns:auto 1fr;grid-template-rows:auto auto 1fr;gap:6px 14px;height:100%;padding:22px 52px 22px 22px;background:var(--navy);transition:background .4s}
.aj4-guides-tools__grid a:hover{background:var(--navy-2)}
.aj4-guides-tools__n{grid-column:1/-1;font-size:.64rem;color:var(--on-dark-muted)}
.aj4-guides-tools__ico{grid-row:2/4;display:grid;place-items:center;width:44px;height:44px;border-radius:12px;background:rgba(255,255,255,.08);color:var(--sky)}
.aj4-guides-tools__grid b{font-weight:600;font-size:1.04rem;line-height:1.25}
.aj4-guides-tools__grid small{color:var(--on-dark-muted);font-size:.88rem;line-height:1.45}
.aj4-guides-tools__grid a>.aj-icon{position:absolute;right:20px;top:22px;width:18px;height:18px;color:var(--sky);transition:transform .4s var(--ease)}
.aj4-guides-tools__grid a:hover>.aj-icon{transform:translateX(4px) rotate(-45deg)}
@media (max-width:1000px){.aj4-guides-tools__grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.aj4-guides-tools__grid{grid-template-columns:1fr}.aj4-guides-tools__grid small{display:none}.aj4-guides-tools__grid a{grid-template-rows:auto auto;align-items:center;padding:16px 48px 16px 16px}.aj4-guides-tools__n{display:none}.aj4-guides-tools__ico{grid-row:auto}.aj4-guides-tools__grid a>.aj-icon{top:50%;margin-top:-9px}}

.aj4-guides-method__grid{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:var(--gap) clamp(32px,6vw,96px);align-items:start}
.aj4-guides-method__grid .aj4-head{margin:0}
.aj4-guides-method__list{list-style:none;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap)}
.aj4-guides-method__list li{display:grid;grid-template-columns:auto 1fr;gap:4px 14px;align-content:start;padding-top:18px;border-top:1px solid var(--line)}
.aj4-guides-method__ico{grid-row:1/4;display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:var(--sky-2);color:var(--blue)}
.aj4-guides-method__list .aj4-mono{font-size:.64rem;color:var(--muted)}
.aj4-guides-method__list h3{margin:0;font-size:1.12rem}
.aj4-guides-method__list p{margin:0;color:var(--muted);font-size:.95rem;line-height:1.55}
@media (max-width:900px){.aj4-guides-method__grid{grid-template-columns:1fr}}
@media (max-width:560px){.aj4-guides-method__list{grid-template-columns:1fr}}

/* ------------------------------------------------------------ reading layout */
.aj4-guides-read{padding-top:var(--sp-block)}
.aj4-guides-read__grid{display:grid;grid-template-columns:minmax(220px,270px) minmax(0,740px);justify-content:center;gap:clamp(40px,5vw,88px);align-items:start}
.aj4-guides-read__side{align-self:stretch}
.aj4-guides-read__main{min-width:0}
.aj4-guides-read__main>*+*{margin-top:var(--sp-block)}
.aj4-guides-read__main>.aj4-guides-prose{margin-top:calc(var(--sp-block) - 1.4em)}

/* TOC — desktop sidebar */
.aj4-guides-toc{position:sticky;top:calc(var(--header-h) + 24px);transition:top .5s var(--ease)}
@media (min-width:961px){html:has(.aj4-header.is-hidden) .aj4-guides-toc{top:24px}}
.aj4-guides-toc__pill{display:none}
.aj4-guides-toc__pill::-webkit-details-marker{display:none}
.aj4-guides-toc__title{display:flex;justify-content:space-between;gap:10px;margin:0 0 10px;font:400 .68rem var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.aj4-guides-toc__title span:first-child{color:var(--ink)}
.aj4-guides-toc__bar{height:2px;margin-bottom:12px;border-radius:2px;background:var(--line);overflow:hidden}
.aj4-guides-toc__bar span{display:block;height:100%;background:linear-gradient(90deg,var(--blue-2),var(--signal));transform-origin:0 50%;transform:scaleX(var(--p,0))}
.aj4-guides-toc ol{list-style:none;display:grid;gap:2px;max-height:calc(100vh - var(--header-h) - 220px);overflow:auto;scrollbar-width:thin}
.aj4-guides-toc ol a{position:relative;display:grid;grid-template-columns:24px 1fr;gap:8px;padding:8px 10px 8px 12px;border-radius:10px;font-size:.92rem;line-height:1.35;color:var(--muted);transition:background .3s,color .3s}
.aj4-guides-toc ol a::before{content:"";position:absolute;left:0;top:10px;bottom:10px;width:2px;border-radius:2px;background:var(--blue);transform:scaleY(0);transition:transform .4s var(--ease)}
.aj4-guides-toc ol a .aj4-mono{font-size:.66rem;padding-top:3px}
.aj4-guides-toc ol a:hover{background:var(--paper);color:var(--ink)}
.aj4-guides-toc ol a[aria-current]{color:var(--ink);font-weight:600;background:var(--sky-2)}
.aj4-guides-toc ol a[aria-current]::before{transform:none}
.aj4-guides-toc ol a[aria-current] .aj4-mono{color:var(--blue)}
.aj4-guides-share{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.aj4-guides-share__btn{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:8px 14px;border-radius:999px;box-shadow:inset 0 0 0 1.5px var(--line-2);font-size:.88rem;font-weight:600;transition:background .3s,color .3s,box-shadow .3s}
.aj4-guides-share__btn .aj-icon{width:16px;height:16px}
.aj4-guides-share__btn:hover{background:var(--ink);color:#fff;box-shadow:none}

@media (max-width:960px){
  .aj4-guides-read__grid{grid-template-columns:minmax(0,1fr);gap:var(--gap)}
  .aj4-guides-toc{position:static}
  /* no-JS: an in-flow collapsible contents block */
  .aj4-guides-toc__pill{display:flex;align-items:center;gap:12px;min-height:56px;padding:8px 14px 8px 10px;border-radius:16px;background:var(--paper);box-shadow:inset 0 0 0 1px var(--line);cursor:pointer;list-style:none}
  .aj4-guides-toc__sheet{padding:14px 4px 4px}
  .aj4-guides-toc ol{max-height:none}
  /* JS: docked pill above the tab bar + bottom sheet */
  .js .aj4-guides-read__side{display:contents}
  .js .aj4-guides-toc{position:fixed;top:auto;left:12px;right:12px;bottom:calc(var(--tabs-h) + 12px);z-index:85;opacity:0;visibility:hidden;transform:translateY(24px);transition:opacity .4s var(--ease),transform .5s var(--ease),visibility 0s .5s,bottom .5s var(--ease)}
  .js .aj4-guides-toc.is-docked{opacity:1;visibility:visible;transform:none;transition:opacity .4s var(--ease),transform .5s var(--ease),visibility 0s,bottom .5s var(--ease)}
  .js:has(.aj4-tabs.is-hidden) .aj4-guides-toc{bottom:calc(12px + env(safe-area-inset-bottom))}
  .js .aj4-guides-toc:not(.is-ready) .aj4-guides-toc__sheet{display:none}
  .js .aj4-guides-toc__pill{background:rgba(255,255,255,.94);backdrop-filter:saturate(1.6) blur(18px);-webkit-backdrop-filter:saturate(1.6) blur(18px);border-radius:999px;box-shadow:0 0 0 1px var(--line),var(--shadow-3)}
  .js .aj4-guides-toc__sheet{position:absolute;left:0;right:0;bottom:calc(100% + 10px);max-height:min(64vh,560px);overflow:auto;overscroll-behavior:contain;padding:18px 16px 16px;border-radius:22px;background:var(--white);box-shadow:0 0 0 100vmax rgba(6,26,44,.42),var(--shadow-3);animation:aj4-sheet .5s var(--ease) both}
  .js .aj4-guides-toc ol a{min-height:44px;align-items:center}
}
.aj4-guides-toc__ring{position:relative;width:36px;height:36px;flex:none}
.aj4-guides-toc__ring svg{width:36px;height:36px;transform:rotate(-90deg)}
.aj4-guides-toc__ring circle{fill:none;stroke:var(--line);stroke-width:3}
.aj4-guides-toc__ring circle+circle{stroke:var(--blue);stroke-linecap:round;stroke-dasharray:97.4;stroke-dashoffset:calc(97.4 * (1 - var(--p,0)))}
.aj4-guides-toc__now{display:grid;flex:1;min-width:0;line-height:1.25}
.aj4-guides-toc__now small{font:400 .62rem var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.aj4-guides-toc__now b{overflow:hidden;white-space:nowrap;text-overflow:ellipsis;font-size:.94rem;font-weight:600}
.aj4-guides-toc__count{font-size:.7rem;color:var(--muted)}
.aj4-guides-toc__chev .aj-icon{width:18px;height:18px;transform:rotate(-90deg);transition:transform .45s var(--ease)}
.aj4-guides-toc[open] .aj4-guides-toc__chev .aj-icon{transform:rotate(90deg)}

/* answer box */
.aj4-guides-answer{position:relative;padding:clamp(22px,3vw,32px);border-radius:var(--radius);background:var(--paper);box-shadow:inset 0 0 0 1px var(--line);overflow:hidden}
.aj4-guides-answer::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:linear-gradient(var(--blue),var(--blue-2))}
.aj4-guides-answer__label{display:flex;align-items:center;gap:10px;margin:0 0 12px;font:400 .7rem var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--blue)}
.aj4-guides-answer__label span{display:grid;place-items:center;width:26px;height:26px;border-radius:50%;background:var(--blue);color:#fff}
.aj4-guides-answer__label .aj-icon{width:15px;height:15px}
.aj4-guides-answer__text{margin:0;font-size:var(--fs-lede);line-height:1.5;letter-spacing:-.012em;color:var(--ink)}
.aj4-guides-answer__points{list-style:none;display:grid;gap:8px;margin-top:18px;padding-top:16px;border-top:1px dashed var(--line-2)}
.aj4-guides-answer__points li{position:relative;padding-left:22px;font-weight:550}
.aj4-guides-answer__points li::before{content:"";position:absolute;left:2px;top:.55em;width:8px;height:8px;border-radius:2px;background:var(--signal);transform:rotate(45deg)}

/* prose refinements */
.aj4-guides-prose{max-width:none;counter-reset:aj4h2}
/* core .aj4-prose p{margin:0} out-ranks the >*+* rhythm; restore paragraph spacing */
.aj4-prose.aj4-guides-prose>*+*,.aj4-guides-evidence>*+*{margin-top:1.1em}
.aj4-prose.aj4-guides-prose>h2{margin-top:2em}
.aj4-prose.aj4-guides-prose>h3{margin-top:1.8em}
.aj4-prose.aj4-guides-prose>h2+*,.aj4-prose.aj4-guides-prose>h3+*{margin-top:.6em}
.aj4-guides-prose>h2{counter-increment:aj4h2}
.aj4-guides-prose>h2::before{content:"§ " counter(aj4h2,decimal-leading-zero);display:block;margin-bottom:12px;font:400 .7rem/1 var(--mono);letter-spacing:.08em;color:var(--blue)}
.aj4-guides-prose h2,.aj4-guides-prose h3{max-width:26ch}
.aj4-guides-prose>ul:not(.aj4-guides-checklist) li::marker{content:"— ";font-family:var(--mono)}
.aj4-guides-prose>ol{counter-reset:none}
.aj4-guides-prose>ol li::marker{font:400 .8em var(--mono);color:var(--blue)}
.aj4-guides-prose img{width:100%;height:auto}
.aj4-guides-read .aj4-img img{margin:0;border-radius:0}
.aj4-guides-table{margin-block:1.6em;border-radius:var(--radius-sm);box-shadow:inset 0 0 0 1px var(--line);overflow-x:auto}
.aj4-guides-table table{display:table;margin:0;min-width:480px}
.aj4-guides-table caption{caption-side:bottom;padding:12px 14px;text-align:left;font:400 .7rem/1.5 var(--mono);letter-spacing:.04em;color:var(--muted)}
.aj4-guides-table tbody th{font-weight:600;background:none}
.aj4-guides-table tr:hover td,.aj4-guides-table tr:hover th{background:var(--sky-2)}
.aj4-guides-table td{font-variant-numeric:tabular-nums}

/* figures */
.aj4-guides-fig{margin-block:2em!important}
.aj4-guides-fig a{position:relative;display:block;border-radius:var(--radius);overflow:hidden;text-decoration:none!important}
.aj4-guides-fig .aj4-img img{transition:opacity .8s var(--ease),transform 1.2s var(--ease)}
.aj4-guides-fig a:hover .aj4-img.is-loaded img{transform:scale(1.03)}
.aj4-guides-fig__zoom{position:absolute;right:12px;bottom:12px;display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:rgba(6,26,44,.6);color:#fff;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);opacity:0;transform:scale(.8);transition:opacity .3s,transform .4s var(--spring)}
.aj4-guides-fig a:hover .aj4-guides-fig__zoom,.aj4-guides-fig a:focus-visible .aj4-guides-fig__zoom{opacity:1;transform:none}
.aj4-guides-fig figcaption{display:flex;gap:12px;margin-top:12px;font-size:.9rem;line-height:1.5;color:var(--muted)}
.aj4-guides-fig figcaption .aj4-mono{flex:none;padding-top:2px;font-size:.66rem;text-transform:uppercase;color:var(--blue)}
@media (hover:none){.aj4-guides-fig__zoom{opacity:1;transform:none}}

/* local help card */
.aj4-guides-local{display:grid;grid-template-columns:180px minmax(0,1fr);margin-block:2.2em!important;border-radius:var(--radius);overflow:hidden;background:var(--ink);color:var(--on-dark)}
.aj4-guides-local__media .aj4-img{height:100%;aspect-ratio:auto}
.aj4-guides-local__body{padding:22px 24px}
.aj4-guides-local__body p{margin:0 0 14px;font-size:.96rem;line-height:1.55;color:var(--on-dark-muted)}
.aj4-guides-local__kicker{display:flex;align-items:center;gap:8px;font-size:.66rem!important;text-transform:uppercase;color:var(--sky)!important;margin-bottom:10px!important}
.aj4-guides-local .aj4-guides-local__title{margin-bottom:8px;font-size:1.3rem;font-weight:600;letter-spacing:-.025em;line-height:1.2;color:#fff}
.aj4-guides-local__actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px 20px}
.aj4-guides-local .aj4-link{color:var(--sky);text-decoration:none}
.aj4-guides-local .aj4-btn{text-decoration:none;color:#fff}
@media (max-width:560px){.aj4-guides-local{grid-template-columns:1fr}.aj4-guides-local__media .aj4-img{aspect-ratio:16/7}.aj4-guides-local .aj4-btn{width:100%;justify-content:space-between}}

/* evidence */
.aj4-guides-evidence{margin-top:2.4em;padding-top:2em;border-top:1px dashed var(--line-2)}
.aj4-guides-evidence>*+*{margin-top:1.1em}
.aj4-guides-evidence h2{margin-top:0}

/* specialist guide steps */
.aj4-guides-steps{display:grid}
.aj4-guides-step{position:relative;padding-block:clamp(24px,3vw,36px);border-top:1px solid var(--line)}
.aj4-guides-step:first-child{border-top:0;padding-top:0}
.aj4-guides-step__n{display:block;margin-bottom:12px;font-size:.7rem;color:var(--blue)}
.aj4-guides-step h2{margin:0 0 12px;font-size:clamp(1.5rem,1.15rem + 1.2vw,2.15rem);max-width:24ch;scroll-margin-top:calc(var(--header-h) + 24px)}
.aj4-guides-step p{margin:0;font-size:1.1rem;line-height:1.7;max-width:62ch}
.aj4-guides-steps>.aj4-guides-fig{margin-block:4px 28px!important}
.aj4-guides-steps>.aj4-guides-local{margin-block:4px 28px!important}

/* site brief */
.aj4-guides-brief{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.9fr);gap:24px 36px;padding:clamp(22px,3vw,36px);border-radius:var(--radius);background:var(--stone)}
.aj4-guides-brief h2{margin:0 0 10px;font-size:clamp(1.5rem,1.2rem + 1vw,2rem);scroll-margin-top:calc(var(--header-h) + 24px)}
.aj4-guides-brief p:not(.aj4-eyebrow){color:var(--muted);margin:0 0 18px}
.aj4-guides-brief .aj4-eyebrow{margin-bottom:12px}
.aj4-guides-brief .aj4-guides-checklist{align-self:center}
.aj4-guides-brief .aj4-guides-checklist li::before{background-color:#fff}
@media (max-width:640px){.aj4-guides-brief{grid-template-columns:1fr}.aj4-guides-brief .aj4-btn{width:100%;justify-content:space-between}}

/* sources */
.aj4-guides-sources h2{margin:0 0 10px;font-size:clamp(1.5rem,1.2rem + 1vw,2rem);scroll-margin-top:calc(var(--header-h) + 24px)}
.aj4-guides-sources>p:not(.aj4-eyebrow){margin:0 0 18px;color:var(--muted);max-width:62ch}
.aj4-guides-sources .aj4-eyebrow{margin-bottom:12px}
.aj4-guides-sources__list{list-style:none;border-top:1px solid var(--line)}
.aj4-guides-sources__list a{display:grid;grid-template-columns:32px minmax(0,1fr) auto;align-items:center;gap:12px;min-height:60px;padding:12px 8px;border-bottom:1px solid var(--line);transition:background .3s,padding .4s var(--ease)}
.aj4-guides-sources__list a:hover{background:var(--paper);padding-left:14px}
.aj4-guides-sources__list .aj4-mono{font-size:.68rem;color:var(--muted)}
.aj4-guides-sources__label{display:grid;line-height:1.35}
.aj4-guides-sources__label b{font-weight:600}
.aj4-guides-sources__label small{font:400 .72rem var(--mono);color:var(--blue)}
.aj4-guides-sources__list .aj-icon{width:18px;height:18px;color:var(--muted)}

/* end note */
.aj4-guides-endnote{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px 24px;padding-top:24px;border-top:1px solid var(--line)}
.aj4-guides-endnote p{margin:0;color:var(--muted)}
.aj4-guides-endnote b{color:var(--ink)}
.aj4-guides-endnote .aj4-guides-share{margin:0}

/* ------------------------------------------------------------ next steps + related */
.aj4-guides-next__grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap) clamp(24px,3vw,48px)}
.aj4-guides-next__col .aj4-dim{margin:0 0 14px}
.aj4-guides-next__services,.aj4-guides-next__tools{list-style:none;display:grid;gap:8px}
.aj4-guides-next__grid a{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:14px;min-height:72px;padding:10px 14px 10px 10px;border-radius:var(--radius-sm);background:var(--white);box-shadow:inset 0 0 0 1px var(--line);transition:transform .5s var(--ease),box-shadow .5s var(--ease)}
.aj4-guides-next__grid a:hover{transform:translateX(4px);box-shadow:inset 0 0 0 1px transparent,var(--shadow-2)}
.aj4-guides-next__grid a>.aj-icon{width:16px;height:16px;color:var(--blue);transition:transform .4s var(--ease)}
.aj4-guides-next__grid a:hover>.aj-icon{transform:translateX(3px)}
.aj4-guides-next__thumb{width:56px;border-radius:10px;overflow:hidden}
.aj4-guides-next__ico{display:grid;place-items:center;width:56px;height:56px;border-radius:10px;background:var(--sky-2);color:var(--blue)}
.aj4-guides-next__txt{display:grid;gap:2px;line-height:1.3}
.aj4-guides-next__txt b{font-weight:600;font-size:.98rem}
.aj4-guides-next__txt small{color:var(--muted);font-size:.84rem}
@media (max-width:1000px){.aj4-guides-next__grid{grid-template-columns:1fr}}
.aj4-guides-related__head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:var(--sp-block)}
.aj4-guides-related__head .aj4-head{margin:0}
.aj4-guides-related__rail{grid-auto-columns:calc((100% - var(--gap) * 2) / 3)}
.aj4-guides-related__all{margin:var(--gap) 0 0}
@media (max-width:1000px){.aj4-guides-related__rail{grid-auto-columns:calc((100% - var(--gap)) / 2)}}
@media (max-width:760px){.aj4-guides-related__rail{grid-auto-columns:82%}.aj4-guides-related__head .aj4-rail-controls{display:none}}

/* ------------------------------------------------------------ search */
.aj4-guides-hits{list-style:none;display:grid;gap:10px}
.aj4-guides-hit.is-shown{animation:aj4-g-in .5s var(--ease) both}
.aj4-guides-hit a{display:grid;grid-template-columns:132px minmax(0,1fr) auto;align-items:center;gap:20px;padding:12px 20px 12px 12px;border-radius:var(--radius);background:var(--white);box-shadow:inset 0 0 0 1px var(--line);transition:transform .5s var(--ease),box-shadow .5s var(--ease)}
.aj4-guides-hit a:hover{transform:translateY(-2px);box-shadow:inset 0 0 0 1px transparent,var(--shadow-2)}
.aj4-guides-hit__media{border-radius:12px;overflow:hidden}
.aj4-guides-hit__ico{display:grid;place-items:center;aspect-ratio:4/3;background:var(--sky-2);color:var(--blue)}
.aj4-guides-hit__ico .aj-icon{width:28px;height:28px}
.aj4-guides-hit__body{display:grid;gap:6px;min-width:0}
.aj4-guides-hit__type{display:flex;align-items:center;gap:8px;font-size:.66rem;text-transform:uppercase;color:var(--blue);min-width:0}
.aj4-guides-hit__type .aj-icon{width:14px;height:14px}
.aj4-guides-hit__path{overflow:hidden;white-space:nowrap;text-overflow:ellipsis;color:var(--muted);text-transform:none}
.aj4-guides-hit__path::before{content:"·";margin-right:8px}
.aj4-guides-hit h3{margin:0;font-size:1.18rem}
.aj4-guides-hit p{margin:0;color:var(--muted);font-size:.94rem;line-height:1.5}
.aj4-guides-hit mark{background:var(--signal-soft);color:inherit;border-radius:3px;padding:0 2px}
.aj4-guides-hit a>.aj-icon{width:18px;height:18px;color:var(--blue);transition:transform .4s var(--ease)}
.aj4-guides-hit a:hover>.aj-icon{transform:translateX(4px)}
@media (max-width:640px){
  .aj4-guides-hit a{grid-template-columns:84px minmax(0,1fr);gap:14px;padding:10px 14px 10px 10px}
  .aj4-guides-hit a>.aj-icon{display:none}
  .aj4-guides-hit p{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;font-size:.88rem}
  .aj4-guides-hit h3{font-size:1.04rem}
  .aj4-guides-hit__path{display:none}
}
.aj4-guides-noresults__panel{display:grid;grid-template-columns:auto minmax(0,1fr);gap:20px;padding:clamp(22px,3vw,36px);border-radius:var(--radius);background:var(--paper);box-shadow:inset 0 0 0 1px var(--line)}
.aj4-guides-noresults__panel h2{margin:0 0 8px;font-size:clamp(1.5rem,1.2rem + 1vw,2.1rem)}
.aj4-guides-noresults__panel p{margin:0 0 16px;color:var(--muted);max-width:60ch}
.aj4-guides-noresults__panel .aj-icon{width:16px;height:16px}
.aj4-guides-noresults__panel .aj4-guides-empty__icon .aj-icon{width:22px;height:22px}
.aj4-guides-noresults__panel .aj4-chip{min-height:44px}
.aj4-guides-routes{list-style:none;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gap);margin-top:var(--gap)}
.aj4-guides-routes a{position:relative;display:grid;gap:4px;height:100%;padding:20px 44px 20px 20px;border-radius:var(--radius);box-shadow:inset 0 0 0 1px var(--line);transition:background .3s,box-shadow .3s}
.aj4-guides-routes a:hover{background:var(--paper)}
.aj4-guides-routes .aj4-guides-tools__ico{margin-bottom:8px;background:var(--sky-2);color:var(--blue)}
.aj4-guides-routes small{color:var(--muted)}
.aj4-guides-routes a>.aj-icon{position:absolute;right:18px;top:22px;width:18px;height:18px;color:var(--blue)}
.aj4-guides-noresults__popular{margin-top:var(--sp-section)}
@media (max-width:900px){.aj4-guides-routes{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.aj4-guides-noresults__panel{grid-template-columns:1fr}.aj4-guides-routes{gap:10px}.aj4-guides-routes a{padding:16px 36px 16px 16px}}

/* ------------------------------------------------------------ print */
@media print{
  .aj4-guides-toc,.aj4-guides-share,.aj4-guides-local,.aj4-guides-next,.aj4-guides-related,.aj4-cta,.aj4-guides-bar{display:none!important}
  .aj4-guides-read__grid{display:block}
  .aj4-guides-sources__list a::after{content:" " attr(href);font:400 .7rem var(--mono)}
}