/* AI 05: aligned text and clear colour bands with restrained figure notes. */
.ai-stack-feature{--stack-ink:#123d4e;--stack-muted:#4b6671;--stack-green:#226e59;--stack-line:#b8cbd0;background:#f1f5f4;color:var(--stack-ink);padding:76px 0 70px;scroll-margin-top:108px}
.ai-stack-feature :is(div,section,article,li){min-width:0}
.ai-stack-feature :is(p,ol,ul,h2,h3,h4){margin:0}
.ai-stack-feature :is(ol,ul){padding:0;list-style:none}
.ai-stack-feature .ai-stack-heading{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:9%;align-items:end;margin-bottom:30px}
.ai-stack-feature .ai-stack-kicker{font:400 .875rem/1.8 var(--sans);letter-spacing:.065em;color:var(--stack-green);margin-bottom:22px}
.ai-stack-feature .ai-stack-heading h2{font:500 clamp(2rem,3.05vw,3rem)/1.48 var(--serif);letter-spacing:-.04em;color:var(--stack-ink)}
.ai-stack-feature .ai-stack-deck>p{font-size:1.0625rem;line-height:1.9;color:var(--stack-muted)}
.ai-stack-feature .ai-stack-deck>.ai-stack-scope{font-size:.875rem;line-height:1.8;color:#40685b;margin-top:18px;padding-left:17px;border-left:2px solid #6f9b88}
.ai-stack-feature .ai-stack-map-caption{padding:0 0 17px;font-size:.875rem;line-height:1.8;color:var(--stack-green)}
.ai-stack-feature .ai-stack-layers{background:#fff}
.ai-stack-feature .ai-stack-layer{--stack-surface:#fff;position:relative;display:grid;grid-template-columns:174px minmax(0,1fr);gap:32px;padding:24px 27px 25px}
.ai-stack-feature .ai-stack-layer-title{position:relative;padding-left:38px}
.ai-stack-feature .ai-stack-layer-number{position:absolute;left:0;top:0;padding-block:2px;background:var(--stack-surface);font:500 1.375rem/1.4 var(--serif);color:var(--stack-green)}
.ai-stack-feature .ai-stack-layer-title h3{font:500 1.25rem/1.6 var(--serif);color:var(--stack-ink);letter-spacing:-.02em}
.ai-stack-feature .ai-stack-layer-title>p{font-size:.875rem;line-height:1.75;color:var(--stack-muted);margin-top:9px;max-width:9em}
.ai-stack-feature .ai-stack-layer-content{align-self:center}
.ai-stack-feature .ai-stack-applications{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:16px}
.ai-stack-feature .ai-stack-applications li{font:500 1.0625rem/1.7 var(--serif);color:var(--stack-ink);padding-bottom:11px}
.ai-stack-feature .ai-stack-layer-note{font-size:.875rem;line-height:1.75;color:var(--stack-muted);margin-top:14px}
.ai-stack-feature .ai-stack-layer-gateway{--stack-surface:#f9fbfa;background:var(--stack-surface)}
.ai-stack-feature .ai-stack-gateway{display:flex;justify-content:space-between;align-items:center;gap:24px;background:#e6f0eb;padding:10px 18px;margin-bottom:21px}
.ai-stack-feature .ai-stack-gateway h4{font:500 1.125rem/1.7 var(--serif);color:#184a3c}
.ai-stack-feature .ai-stack-gateway p{font-size:.9375rem;line-height:1.8;color:#40685b;word-spacing:.1em}
.ai-stack-feature .ai-stack-modules{display:grid;gap:22px 27px}
.ai-stack-feature .ai-stack-modules-three{grid-template-columns:repeat(3,minmax(0,1fr))}
.ai-stack-feature .ai-stack-modules-four{grid-template-columns:repeat(4,minmax(0,1fr))}
.ai-stack-feature .ai-stack-modules>section{min-width:0}
.ai-stack-feature .ai-stack-modules h4{font:500 1.0625rem/1.65 var(--sans);color:var(--stack-ink);margin-bottom:8px}
.ai-stack-feature .ai-stack-modules p{font-size:.9375rem;line-height:1.8;color:var(--stack-muted);text-wrap:balance}
.ai-stack-feature .ai-stack-scope{ text-wrap:balance }
.ai-stack-feature .ai-stack-term{white-space:nowrap}
.ai-stack-feature .ai-stack-layer-capabilities{--stack-surface:#062c3d;background:var(--stack-surface);color:#fff;padding-block:34px 36px}
.ai-stack-feature .ai-stack-layer-capabilities .ai-stack-layer-title h3{color:#fff;font-size:1.45rem}
.ai-stack-feature .ai-stack-layer-capabilities .ai-stack-layer-number{color:#9bd2bb}
.ai-stack-feature .ai-stack-layer-capabilities .ai-stack-layer-title>p{color:#bdd4d6}
.ai-stack-feature .ai-stack-capabilities{gap:32px 28px;align-self:start}
.ai-stack-feature .ai-stack-capabilities>section{display:grid;grid-template-columns:minmax(0,1fr);align-content:start;align-items:start;gap:9px}
.ai-stack-feature .ai-stack-capabilities h4{color:#fff;font-size:1.125rem;margin:0}
.ai-stack-feature .ai-stack-capabilities p{grid-column:1/-1;color:#c5d9dd}
.ai-stack-feature .ai-stack-layer-infrastructure{--stack-surface:#e8efed;background:var(--stack-surface);padding-block:27px}
.ai-stack-feature .ai-stack-layer-infrastructure .ai-stack-modules h4{font-size:1rem}
.ai-stack-feature .ai-stack-layer-infrastructure .ai-stack-modules p{font-size:.875rem;line-height:1.85}
.ai-stack-feature .ai-stack-architecture-principles{display:flex;flex-wrap:wrap;gap:6px 25px;font-size:.875rem;line-height:1.9;color:var(--stack-muted);padding:19px 0;border-bottom:1px solid #d6e1de}
.ai-stack-feature .ai-stack-architecture-principles>span{color:var(--stack-green)}
.ai-stack-feature .ai-stack-reading-notes{display:grid;grid-template-columns:174px minmax(0,1fr);gap:32px;padding:26px 27px 0}
.ai-stack-feature .ai-stack-reading-label{font-size:.875rem;line-height:1.8;color:var(--stack-green)}
.ai-stack-feature .ai-stack-principles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}
.ai-stack-feature .ai-stack-principle-label{font-size:.875rem;line-height:1.8;color:var(--stack-muted);margin-bottom:7px}
.ai-stack-feature .ai-stack-principles h3{font:500 1rem/1.75 var(--sans);color:var(--stack-ink);margin-bottom:8px}
.ai-stack-feature .ai-stack-principles article>p:last-child{font-size:.9375rem;line-height:1.85;color:var(--stack-muted);text-wrap:balance}
@media(max-width:1300px){.ai-stack-feature .ai-stack-reading-notes{grid-template-columns:160px minmax(0,1fr);gap:24px;padding-inline:23px}.ai-stack-feature .ai-stack-principles{gap:22px}.ai-stack-feature .ai-stack-layer{grid-template-columns:160px minmax(0,1fr);gap:24px;padding-inline:23px}.ai-stack-feature .ai-stack-modules{column-gap:22px}.ai-stack-feature .ai-stack-applications{gap:12px}.ai-stack-feature .ai-stack-layer-title{padding-left:33px}}
@media(max-width:68rem){.ai-stack-feature .ai-stack-reading-notes{grid-template-columns:140px minmax(0,1fr);gap:20px}.ai-stack-feature .ai-stack-heading{gap:6%;grid-template-columns:1.1fr 1fr}.ai-stack-feature .ai-stack-layer{grid-template-columns:140px minmax(0,1fr);gap:20px}.ai-stack-feature .ai-stack-applications{grid-template-columns:repeat(3,minmax(0,1fr));row-gap:12px}.ai-stack-feature .ai-stack-modules-four{grid-template-columns:repeat(2,minmax(0,1fr))}.ai-stack-feature .ai-stack-gateway{align-items:start;flex-direction:column;gap:5px}.ai-stack-feature .ai-stack-layer-title h3{font-size:1.125rem}}
@media(max-width:48rem){.ai-stack-feature .ai-stack-reading-notes{grid-template-columns:1fr;gap:22px;padding-inline:23px}.ai-stack-feature{padding:54px 0}.ai-stack-feature .ai-stack-heading{grid-template-columns:1fr;gap:26px;margin-bottom:35px}.ai-stack-feature .ai-stack-layer{grid-template-columns:1fr;gap:22px}.ai-stack-feature .ai-stack-layer-title{display:grid;grid-template-columns:1fr;padding-left:40px}.ai-stack-feature .ai-stack-layer-title h3 br{display:none}.ai-stack-feature .ai-stack-layer-title>p{max-width:none;margin-top:5px}.ai-stack-feature .ai-stack-modules-three{grid-template-columns:repeat(2,minmax(0,1fr))}.ai-stack-feature .ai-stack-principles{grid-template-columns:1fr;gap:30px}.ai-stack-feature .ai-stack-architecture-principles{display:block}.ai-stack-feature .ai-stack-architecture-principles>span{display:block;margin-bottom:5px}}
@media(max-width:30rem){.ai-stack-feature .ai-stack-modules-three,.ai-stack-feature .ai-stack-modules-four{grid-template-columns:1fr}.ai-stack-feature .ai-stack-applications{grid-template-columns:repeat(2,minmax(0,1fr))}.ai-stack-feature .ai-stack-layer{padding-inline:19px}.ai-stack-feature .ai-stack-reading-notes{padding-inline:19px}}
@media print{.ai-stack-feature .ai-stack-reading-notes{display:block;padding:15px 0}.ai-stack-feature .ai-stack-reading-label{margin-bottom:15px}.ai-stack-feature .ai-stack-layer{--stack-surface:#fff}.ai-stack-feature{background:#fff!important;color:#173b4c!important;padding:25px 0}.ai-stack-feature :is(p,h2,h3,h4,span,i){color:#173b4c!important}.ai-stack-feature .ai-stack-heading{display:block}.ai-stack-feature .ai-stack-deck{margin-top:20px}.ai-stack-feature .ai-stack-heading h2{font-size:23pt}.ai-stack-feature .ai-stack-map-caption{background:transparent!important}.ai-stack-feature .ai-stack-layer{grid-template-columns:135px minmax(0,1fr);gap:20px;break-inside:avoid;padding:20px 12px;background:#fff!important}.ai-stack-feature .ai-stack-layer-title{padding-left:29px}.ai-stack-feature .ai-stack-gateway{background:#edf3ef!important}.ai-stack-feature .ai-stack-principles{gap:25px}.ai-stack-feature .ai-stack-modules{column-gap:16px}.ai-stack-feature .ai-stack-modules p,.ai-stack-feature .ai-stack-principles article>p:last-child{font-size:10pt}.ai-stack-feature .ai-stack-principles h3{font-size:13pt}}