/* Product tour: real interface captures, natural scrolling, progressive disclosure. */
:root { --research-paper: #f6f5f1; --research-red: #c52939; --research-ink: #252624; }
html { scroll-snap-type: none !important; }
body { background: var(--research-paper); color: var(--research-ink); }
main > section { min-height: 0; height: auto; overflow: visible; padding: 0; }
main > section::after { display: none; }
.site-header { background: rgba(246,245,241,.95); }
.research-container { width: min(1380px, 100% - 96px); margin-inline: auto; }
.research-kicker { display: flex; align-items: center; gap: 13px; font-family: var(--font-mono); font-size: 10px; font-weight: 500; letter-spacing: .11em; line-height: 1.6; text-transform: uppercase; color: var(--research-red); }
.research-kicker > span { opacity: .65; }
.research-hero { padding-block: 142px 0; }
.research-hero__heading { display: grid; grid-template-columns: 1.35fr 1fr; gap: 70px; align-items: end; margin: 0 0 44px; }
.research-hero h1 { font-family: var(--font-display); font-size: clamp(42px,4.7vw,76px); line-height: 1.04; letter-spacing: -.06em; font-weight: 500; margin: 0; }
.research-hero h1 em, .research-dark h2 em { color: var(--research-red); font-style: normal; }
.research-hero__heading > div > p { font-size: 17px; line-height: 1.7; max-width: 470px; color: #64655f; margin: 0 0 24px; }
.research-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 24px; }
.research-actions .btn { font-size: 13px; }
.research-link { font-size: 13px; font-weight: 600; text-underline-offset: 5px; text-decoration: underline; }
.product-shot { margin: 0; min-width: 0; }
.product-shot > a { box-sizing: border-box; width: 100%; display: block; position: relative; border: 1px solid #d7d8d0; border-radius: 8px; overflow: hidden; padding: clamp(20px, 4vw, 52px); background: #117bb3 url("../assets/research/desktop-wallpaper.png") center / cover; transition: box-shadow .2s; }
.product-shot > a:hover { box-shadow: 0 14px 40px -24px #343c3480; }
.product-shot img { display: block; width: 100%; height: auto; aspect-ratio: 8/5; object-fit: contain; }
.shot-zoom { position: absolute; right: 12px; bottom: 12px; display: grid; place-items: center; width: 32px; height: 32px; border-radius: 50%; color: #fff; background: #252624e6; font-size: 18px; }
.product-shot figcaption { margin-top: 12px; font-size: 11px; line-height: 1.55; color: #74756e; }
.research-strip { display: flex; justify-content: space-between; gap: 18px; padding: 34px 0; margin-top: 22px; border-bottom: 1px solid #dcded5; font: 10px var(--font-mono); letter-spacing: .13em; color: #808277; }
.research-section { padding-block: 100px; }
.feature-layout { display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1.35fr); align-items: center; gap: clamp(40px,6vw,100px); }
.research-section--reverse { background: #edece6; }
.research-section--reverse .feature-copy { order: 2; }
.research-section--reverse .feature-layout { grid-template-columns: minmax(0, 1.35fr) minmax(0, .85fr); }
.feature-copy h2, .research-section-head h2, .research-dark h2, .catalog-layout h2, .origin-heading h2 { font-family: var(--font-display); font-size: clamp(30px,3.3vw,50px); letter-spacing: -.045em; line-height: 1.12; font-weight: 500; margin: 18px 0 24px; }
.feature-lead { font-size: 16px; color: #62655c; line-height: 1.8; }
.feature-points { list-style: none; padding: 0; margin: 25px 0 0; }
.feature-points li { position: relative; padding: 12px 0 12px 20px; border-top: 1px solid #d8dad0; font-size: 13px; line-height: 1.6; color: #44483e; }
.feature-points li::before { content: '↗'; position: absolute; left: 0; color: var(--research-red); }
.research-dark { padding-block: 95px; background: #202720; color: #f1f1e9; }
.research-dark .research-kicker { color: #d7b0a8; }
.research-dark h2 em { color: #dfad9d; }
.dark-heading { display: grid; grid-template-columns: 1.4fr .75fr; gap: 70px; align-items: end; margin-bottom: 38px; }
.dark-heading > p { color: #bbc3b5; font-size: 15px; line-height: 1.8; padding-bottom: 15px; }
.prediction-layout { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, .8fr); gap: 60px; align-items: center; }
.research-dark .product-shot > a { border-color: #63705c; }
.research-dark figcaption { color: #b4bead; }
.engine-list article { padding: 22px 0; border-top: 1px solid #4a5445; }
.engine-list article > span { font: 9px var(--font-mono); letter-spacing: .1em; color: #adbba3; }
.engine-list h3 { margin: 10px 0; font-size: 20px; letter-spacing: -.03em; font-weight: 500; }
.engine-list p { font-size: 13px; line-height: 1.7; color: #bbc3b5; margin: 0; }
.research-section-head { max-width: 660px; margin-bottom: 40px; }
.research-section-head > p:last-child { color: #676c60; font-size: 16px; }
.research-cards { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 24px; }
.research-card { min-width: 0; }
.research-card > div { padding: 12px 2px 0; }
.research-card h3 { font: 500 25px/1.25 var(--font-display); letter-spacing: -.04em; margin: 12px 0; }
.research-card > div > p:last-child { font-size: 14px; color: #666b60; line-height: 1.75; }
.research-card figcaption { display: none; }
.research-catalog { padding-block: 100px; background: #e9e9e1; }
.catalog-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 100px; }
.catalog-layout header > p:not(.research-kicker) { color: #606759; font-size: 15px; margin-bottom: 28px; }
.catalog-groups details { border-top: 1px solid #c5c9bb; }
.catalog-groups summary { display: flex; align-items: baseline; gap: 18px; cursor: pointer; font-size: 16px; font-weight: 500; padding: 23px 0; list-style: none; }
.catalog-groups summary::-webkit-details-marker { display: none; }
.catalog-number { font: 10px var(--font-mono); color: #7f8774; }
.catalog-plus { margin-left: auto; color: var(--research-red); transition: transform .2s; }
.catalog-groups details[open] .catalog-plus { transform: rotate(45deg); }
.catalog-groups details > p { font-size: 14px; color: #565f4d; padding: 0 0 20px 34px; margin: 0; line-height: 1.8; }
.catalog-note { border-top: 1px solid #c5c9bb; padding-top: 24px; font-size: 12px; line-height: 1.75; color: #646d5b; }
.research-origin { padding-block: 90px 50px; }
.origin-heading { display: grid; grid-template-columns: 1fr 1fr auto; gap: 45px; align-items: center; }
.origin-heading p { font-size: 15px; color: #64695e; line-height: 1.8; }
.origin-heading .btn { font-size: 13px; white-space: nowrap; }
.research-logos { list-style: none; padding: 40px 0 0; margin: 40px 0 0; border-top: 1px solid #d8dbd0; display: grid; grid-template-columns: repeat(4,1fr); gap: 55px; align-items: center; }
.research-logos img { width: 100%; height: 50px; object-fit: contain; mix-blend-mode: multiply; }
.site-footer { min-height: 0 !important; height: auto !important; padding-block: 35px; background: #efefe9; }
.image-dialog { width: min(1500px,96vw); max-width: 96vw; max-height: 95dvh; border: 0; border-radius: 10px; padding: 15px; background: #f6f5f1; color: #252624; }
.image-dialog::backdrop { background: #11180fee; }
.image-dialog img { width: 100%; max-height: 78dvh; object-fit: contain; display: block; }
.image-dialog__close { display: block; margin: 0 0 12px auto; padding: 9px 16px; border: 1px solid #bfc4b8; background: transparent; color: inherit; border-radius: 5px; cursor: pointer; }
.image-dialog p { margin: 12px 0 0; font-size: 13px; }
body:has(.image-dialog[open]) { overflow: hidden; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid #bd2a3a; outline-offset: 5px; }
@media (max-width: 1100px) {
 .research-container { width: calc(100% - 56px); }
 .research-hero__heading { gap: 30px; }
 .feature-layout, .research-section--reverse .feature-layout { gap: 30px; }
 .origin-heading { grid-template-columns: 1fr 1fr; }
 .origin-heading .btn { justify-self: start; }
 .catalog-layout { gap: 45px; }
 .prediction-layout { gap: 30px; }
}
@media (max-width: 760px) {
 .research-container { width: calc(100% - 36px); }
 .research-hero { padding-top: 115px; }
 .research-hero__heading, .feature-layout, .research-section--reverse .feature-layout, .dark-heading, .prediction-layout, .catalog-layout, .origin-heading { grid-template-columns: 1fr; gap: 25px; }
 .research-hero h1 { font-size: clamp(38px,7.2vw,55px); }
 .research-hero__heading { margin-bottom: 32px; }
 .research-hero__heading > div > p { font-size: 16px; }
 .research-section, .research-dark, .research-catalog { padding-block: 60px; }
 .research-section--reverse .feature-copy { order: 0; }
 .research-strip { flex-wrap: wrap; justify-content: center; font-size: 8px; padding-block: 23px; }
 .research-kicker { font-size: 9px; }
 .hero-workspace figcaption { font-size: 10px; }
 .research-cards { grid-template-columns: 1fr; gap: 40px; }
 .research-card > div { padding-inline: 0; }
 .dark-heading { margin-bottom: 20px; }
 .origin-heading h2 { margin-block: 10px; }
 .research-origin { padding-block: 60px 35px; }
 .research-logos { gap: 25px; grid-template-columns: repeat(2,1fr); }
 .catalog-groups summary { font-size: 14px; gap: 12px; }
 .site-header__entry { display: none; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .product-shot > a, .catalog-plus { transition: none; } }

/* Decorative browser chrome scales with each capture, including cards and mobile. */
.hero-workspace { max-width: 980px; margin-inline: auto; }
.hero-workspace .product-shot > a { padding: clamp(24px, 5vw, 68px); }
.browser-window { min-width: 0; max-width: 100%; container-type: inline-size; display: block; overflow: hidden; border-radius: 7px; border: 1px solid #ffffff80; background: #f4f4f6; box-shadow: 0 16px 35px #171b4659; }
.browser-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 1.42cqw; height: 3.55cqw; padding: 0 1.18cqw; background: #f0f0f3; color: #646670; }
.browser-dots { display: flex; gap: .47cqw; }
.browser-dots i { width: .71cqw; height: .71cqw; border-radius: 50%; background: #ff6059; }
.browser-dots i:nth-child(2) { background: #ffbd2e; }
.browser-dots i:nth-child(3) { background: #28c840; }
.browser-address { width: 55%; padding: .355cqw .95cqw; border-radius: .47cqw; background: #fff; text-align: center; font: 1.065cqw/1.2 var(--font-mono); letter-spacing: .02em; }
.browser-menu { font-size: 2.13cqw; line-height: 1; }
.research-card .product-shot > a { padding: 22px; }
@media (max-width: 760px) {
 .product-shot > a, .hero-workspace .product-shot > a { padding: 20px; }
}

/* Keep the original editorial rhythm; detail is optional beside each real capture. */
.home-summary { padding-block: 55px; }
.home-summary .research-card { border-top: 1px solid #cdd1c6; padding-top: 22px; }
.home-summary .research-card > p:not(.research-kicker) { color: #60665b; font-size: 15px; line-height: 1.75; margin-bottom: 20px; }
.functions-opening { padding-block: 135px 45px; }
.functions-opening h1 { font: 500 clamp(40px,4.7vw,68px)/1.06 var(--font-display); letter-spacing: -.05em; margin: 20px 0 0; }
.functions-opening h1 em { color: var(--research-red); font-style: normal; }
.functions-opening .research-hero__heading { margin-bottom: 30px; }
.functions-nav { display: flex; flex-wrap: wrap; gap: 14px 30px; border-top: 1px solid #d2d6cb; padding-top: 22px; }
.functions-nav a { font-size: 13px; text-underline-offset: 6px; }
.feature-depth { border-top: 1px solid #cbd0c3; margin-top: 18px; }
.feature-depth summary { display: flex; justify-content: space-between; gap: 16px; padding-block: 16px; cursor: pointer; font-size: 13px; font-weight: 600; list-style: none; }
.feature-depth summary::-webkit-details-marker { display: none; }
.feature-depth summary span { color: var(--research-red); }
.feature-depth[open] summary span { transform: rotate(45deg); }
.feature-depth p { font-size: 13px; line-height: 1.75; color: #56604c; margin: 0 0 16px; }
.site-nav [aria-current="page"] { color: var(--research-red); }
[id] { scroll-margin-top: 85px; }
@media (max-width: 760px) {
 .functions-opening { padding-top: 115px; }
 .functions-opening h1 { font-size: 40px; }
 .home-summary { padding-block: 35px; }
}

/* Individual explanations keep the alternating, image-led tour. */
.individual-chapter .feature-layout { align-items: start; }
.individual-chapter .product-shot { position: sticky; top: 110px; margin-top: 55px; }
.individual-functions { margin-top: 30px; }
.individual-functions article { position: relative; padding: 25px 0 12px 45px; border-top: 1px solid #cbd0c2; }
.individual-functions h3 { font: 500 22px/1.25 var(--font-display); letter-spacing: -.025em; margin: 0 0 12px; }
.individual-functions p { font-size: 15px; line-height: 1.75; color: #596150; margin: 0 0 12px; }
.individual-functions .function-outcome { color: #303a28; }
.function-number { position: absolute; left: 0; top: 29px; font: 9px var(--font-mono); color: var(--research-red); }
.chapter-requirement { font-size: 13px; line-height: 1.65; color: #68705e; border-left: 2px solid #bbc2af; padding-left: 15px; }
.research-dark .individual-functions article { border-color: #4a5445; }
.research-dark .feature-lead, .research-dark .chapter-requirement, .research-dark .individual-functions p { color: #bbc3b5; }
.research-dark .individual-functions .function-outcome { color: #f1f1e9; }
.research-dark .function-number { color: #dfad9d; }
@media (max-width: 760px) {
 .individual-chapter .product-shot { position: static; margin-top: 0; }
 .individual-chapter .feature-copy { display: contents; }
 .individual-chapter .product-shot { grid-row: 3; }
 .individual-chapter .feature-layout { gap: 18px; }
 .individual-chapter .feature-copy > h2 { margin-block: 0; }
 .individual-functions { margin-top: 10px; }
}