/* AIPM field guide: shared publication tokens, page-scoped layout. */
.aipm-page { font-family: var(--font); }
.aipm-page main { outline: none; }
.aipm-page :where(h1,h2,h3,p,li,dd,a) { overflow-wrap: anywhere; }
.aipm-page .guide-hero, .aipm-page .guide-layout { max-width: 1400px; margin-inline: auto; padding-inline: 40px; }
.guide-hero { padding-top: 42px; }
.guide-kicker, .guide-meta { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px 24px; }
.guide-kicker { font: .75rem/1.5 var(--font-mono); letter-spacing: .09em; text-transform: uppercase; color: var(--accent); }
.hero-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 64px; align-items: end; padding-block: 36px 44px; }
.hero-grid > *, .guide-layout > * { min-width: 0; }
.aipm-page h1 { font-size: clamp(3.5rem, 7.4vw, 7.2rem); font-weight: 750; line-height: .99; letter-spacing: -.065em; }
.aipm-page h1 em { font-family: var(--font-editorial); font-weight: 500; color: var(--accent); }
.hero-deck { margin-top: 26px; font-size: clamp(1rem,1.6vw,1.3rem); line-height: 1.55; }
.hero-note { border-left: 1px solid var(--border); padding-left: 30px; max-width: 43ch; }
.hero-note p { color: var(--text-muted); font-size: 1.0625rem; line-height: 1.8; margin-bottom: 22px; }
.hero-note strong { color: var(--text); font-weight: 600; }
.text-link { display: inline-block; color: var(--accent); border-bottom: 1px solid currentColor; padding-block: 8px; font-weight: 600; }
.text-link span { margin-left: 18px; }
.guide-meta { border-block: 1px solid var(--border); padding-block: 15px; color: var(--text-muted); font-size: .8125rem; }
.aipm-page .guide-layout { display: grid; grid-template-columns: 240px minmax(0,1fr); gap: 80px; align-items: start; padding-top: 48px; }
.guide-contents { position: sticky; top: 126px; padding-bottom: 24px; }
.eyebrow, .small-label { font: .75rem/1.6 var(--font-mono); letter-spacing: .09em; text-transform: uppercase; color: var(--accent); }
.guide-contents .eyebrow { color: var(--text-muted); margin-bottom: 16px; }
.guide-contents ol { list-style: none; counter-reset: chapters; }
.guide-contents li { counter-increment: chapters; }
.guide-contents a { display: flex; gap: 12px; align-items: baseline; color: var(--text-muted); font-size: .875rem; min-height: 44px; padding-block: 10px; border-bottom: 1px solid var(--border); }
.guide-contents a::before { content: '0' counter(chapters); font: .7rem var(--font-mono); color: var(--accent); }
.guide-contents a:hover, .guide-contents a[aria-current] { color: var(--accent); }
.guide-contents a[aria-current] { font-weight: 650; }
.rail-note { margin-top: 28px; max-width: 23ch; font-family: var(--font-editorial); font-size: 1.1rem; font-style: italic; color: var(--text-muted); line-height: 1.6; }
.guide-body { max-width: 900px; }
.guide-section { padding-bottom: 64px; margin-bottom: 56px; border-bottom: 1px solid var(--border); scroll-margin-top: 120px; }
.guide-section:last-child { border-bottom: 0; margin-bottom: 0; }
.guide-section > .eyebrow { margin-bottom: 16px; }
.aipm-page h2 { font-family: var(--font-editorial); font-size: clamp(2.05rem,3.4vw,3.35rem); line-height: 1.12; letter-spacing: -.035em; font-weight: 500; margin-bottom: 22px; }
.guide-section p { max-width: 72ch; margin-bottom: 18px; line-height: 1.8; }
.guide-section .section-intro { font-size: 1.2rem; line-height: 1.65; color: var(--text-muted); margin-bottom: 28px; max-width: 56ch; }
.guide-section h3 { font-size: 1.125rem; line-height: 1.45; margin-bottom: 10px; font-weight: 650; }
.guide-section > h3 { margin-top: 32px; }
.guide-section a:not(.text-link):not(.source-links a) { text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
.principles { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 24px; margin-block: 32px; }
.principles > div { padding-top: 18px; border-top: 2px solid var(--accent); }
.principles .small-label { font-size: .65rem; }
.principles h3 { margin-top: 10px; }
.principles p, .design-points p { font-size: .9375rem; color: var(--text-muted); }
.guide-section .source-note { font-size: .8125rem; color: var(--text-muted); }
.pipeline { list-style: none; }
.pipeline li { display: grid; grid-template-columns: 52px minmax(0,1fr); gap: 24px; border-top: 1px solid var(--border); padding-block: 26px; }
.step-number { color: var(--accent); font: 1.25rem/1.5 var(--font-mono); }
.pipeline h3 { font-size: 1.3rem; }
.pipeline p { margin-bottom: 12px; }
.pipeline .exit { color: var(--text-muted); font-size: .875rem; padding-left: 16px; border-left: 2px solid var(--accent); margin-bottom: 0; }
.margin-note { background: var(--bg-alt); border-left: 3px solid var(--accent); padding: 24px 28px; margin-block: 20px 28px; scroll-margin-top: 120px; }
.margin-note p { margin: 8px 0 0; font-size: .9375rem; }
.check-list { list-style: none; margin-bottom: 28px; }
.check-list li { position: relative; padding: 14px 0 14px 26px; border-bottom: 1px solid var(--border); line-height: 1.8; }
.check-list li::before { position: absolute; top: 20px; left: 0; width: 6px; height: 6px; background: var(--accent); content: ''; }
.worked-example { padding: 28px; background: var(--bg-alt); }
.worked-example .example-claim { font: 1.7rem/1.4 var(--font-editorial); color: var(--text); }
.worked-example p:last-child { margin-bottom: 0; }
.design-points { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 24px 32px; margin-block: 32px; }
.design-points > div { padding-top: 18px; border-top: 1px solid var(--border); }
.evidence-list { margin-bottom: 30px; }
.evidence-list > div { display: grid; grid-template-columns: 180px minmax(0,1fr); gap: 24px; border-top: 1px solid var(--border); padding-block: 22px; }
.evidence-list dt { font-weight: 650; line-height: 1.5; }
.evidence-list dd { font-size: .9375rem; line-height: 1.8; color: var(--text-muted); }
.source-links { margin-block: 32px; }
.source-links > a { position: relative; display: block; padding: 20px 40px 20px 0; border-top: 1px solid var(--border); color: var(--text); }
.source-links strong { display: block; font-size: 1.0625rem; margin-bottom: 5px; }
.source-links span { font-size: .875rem; color: var(--text-muted); }
.source-links .source-arrow { position: absolute; right: 8px; top: 24px; color: var(--accent); font-size: 1.2rem; }
.source-links a:hover strong { color: var(--accent); text-decoration: underline; text-underline-offset: 4px; }
.guide-section .guide-close { font-family: var(--font-editorial); font-size: 1.4rem; line-height: 1.6; margin-top: 40px; }
.aipm-page .drawer-theme { border: 1px solid var(--border); background: var(--bg-alt); color: var(--text); min-height: 44px; padding: 10px 16px; margin-top: 24px; font: inherit; cursor: pointer; }
.aipm-page .theme-toggle { color: var(--text); }
@media (max-width: 1000px) {
.aipm-page:not(.aipm-enhanced) .header-inner { flex-wrap: wrap; }
.aipm-page:not(.aipm-enhanced) .main-nav { display: flex; flex-wrap: wrap; width: 100%; }
.aipm-page .guide-layout { grid-template-columns: 180px minmax(0,1fr); gap: 40px; }
.hero-grid { gap: 36px; }.principles { grid-template-columns: 1fr; gap: 16px; }.principles p { margin-bottom: 0; }
.evidence-list > div { grid-template-columns: 1fr; gap: 8px; }
}
@media (max-width: 768px) {
.aipm-page .guide-hero, .aipm-page .guide-layout { padding-inline: 24px; }.guide-hero { padding-top: 28px; }.guide-kicker { font-size: .625rem; }
.hero-grid { grid-template-columns: 1fr; padding-block: 28px; gap: 28px; }.aipm-page h1 { font-size: clamp(3.3rem,12vw,5.5rem); }
.hero-note { padding: 0; border: 0; max-width: 58ch; }.hero-note p { margin-bottom: 12px; }
.aipm-page .guide-layout { display: block; padding-top: 26px; }.guide-contents { position: static; padding-bottom: 32px; margin-bottom: 32px; border-bottom: 1px solid var(--border); }
.guide-contents ol { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); column-gap: 20px; }.guide-contents a { align-items: flex-start; }.rail-note { display: none; }
.guide-section { padding-bottom: 36px; margin-bottom: 36px; scroll-margin-top: 104px; }.design-points { grid-template-columns: 1fr; gap: 8px; }
.pipeline li { grid-template-columns: 32px minmax(0,1fr); gap: 14px; }.margin-note, .worked-example { padding: 22px; }.aipm-page .site-footer { margin-top: 0; }
}
@media (max-width: 390px) { .aipm-page .guide-hero, .aipm-page .guide-layout { padding-inline: 20px; }.guide-contents ol { grid-template-columns: 1fr; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }