/* Shared styling: IBM reference palette and flat controls, with existing layouts. */
:root {
  --surface: #f5f7fa;
  --ink: #121314;
  --muted: #6b6b6b;
  --line: #e5e5e5;
  --accent: #0f62fe;
  --accent-strong: #0043ce;
  --accent-soft: #edf3ff;
  --detail: #0f62fe;
  --radius: 0;
  --wrap: 1280px;
  font-size: 18px;
  line-height: 1.65;
}
h1, h2 { font-weight: 300; line-height: 1.25; letter-spacing: -0.02em; }
.section { padding: 96px 0; }
.section h2 { font-size: 44px; }
.section-soft { background: #f3f3f3; }
.page-hero { padding-top: 96px; }
.lede { font-size: 18px; }
.product-summary { font-weight: 400; }
.btn, .plain-link, .text-link { min-height: 48px; padding: 12px 28px; border-radius: 0; font-size: 16px; font-weight: 500; }
.plain-link, .text-link { display: inline-flex; align-items: center; justify-content: center; background: var(--accent); color: #fff; transition: background-color 160ms ease; }
.plain-link:hover, .text-link:hover { background: var(--accent-strong); text-decoration: none; }
.plain-link:active, .text-link:active, .btn-primary:active { background: #004d8d; }
.feature-copy .text-link { display: inline-flex; }
.card, .service-detail-panel { border-color: #e0e0e0; border-radius: 0; background: var(--surface); }
.service-media, .service-image, .feature-preview { border-radius: 0; }
.feature-preview { background: var(--surface); border-color: var(--line); box-shadow: none; }
.preview-list .preview-selected { background: var(--accent-soft); border-color: #b5d5f0; }
.status-pill { border: 0; border-radius: 0; background: var(--accent-soft); color: #0043ce; }
.release-note { border-color: var(--line); }
.note a { color: var(--detail); }

/* Shared white navigation. */
.site-header, .home-page .site-header { --ink: #161616; --muted: #525252; --surface: #f4f4f4; --line: #e0e0e0; background: #fff; color: var(--ink); border-color: var(--line); }
.site-header :focus-visible, .home-page .site-header :focus-visible { outline-color: #0f62fe; }
.home-page .logo { color: #161616; }
.site-nav a, .home-page .site-nav a { color: #525252; }
.site-nav a:hover, .site-nav a[aria-current="page"]:not(.btn), .home-page .site-nav a:hover { color: #161616; background: #f4f4f4; }
.nav-toggle, .home-page .nav-toggle { border-radius: 0; background: #fff; border-color: #e0e0e0; color: #161616; }

.home-hero { padding: 64px 0; color: #fff; background: radial-gradient(ellipse at 68% 44%, #000000e0 0, #00000000 65%), radial-gradient(ellipse at 23% 42%, #0070d12b 0, #00000000 60%), url("../assets/images/hero-network.svg") center / cover no-repeat, #000; }
.home-hero .eyebrow { color: #53b1ff; }
.home-hero h1 { font-size: clamp(36px, 4.2vw, 54px); font-weight: 300; line-height: 1.25; letter-spacing: -0.025em; }
.hero-copy .hero-description { color: #ccc; font-size: 18px; line-height: 1.65; }
.hero-explore { min-height: 48px; padding: 12px 28px; border: 0; border-radius: 9999px; background: var(--accent); color: #fff; font-size: 18px; font-weight: 700; }
.hero-explore:hover { background: var(--accent-strong); }
.home-hero :focus-visible { outline-color: #53b1ff; }
.brand-stage::before { background: radial-gradient(ellipse at 48% 46%, #0070d129, #18314c12 45%, transparent 68%); }
.brand-panel.has-webgl .phase-legend .is-active { color: #53b1ff; border-color: #53b1ff; }
.motion-control { min-height: 44px; border-radius: 9999px; background: #121314; }
.triangle-depth { fill: #0070d118; stroke: #6a95b9; }
.structure-strut, .structure-grid { stroke: #6a95b9; }
.triangle-edge { stroke: #b2cce2; }
.triangle-point { fill: #0b2540; stroke: #b2cce2; }
.system-route { stroke: #629ac8; }
.route-signal { stroke: #53b1ff; }
.business-module { --module-accent: #7abafa; --module-fill: #0b2540; }
.module-cloud { --module-accent: #a5bed4; --module-fill: #192c40; }
.module-lab { --module-accent: #7abafa; --module-fill: #0b2540; }
.core-side { fill: #0a1c30; stroke: #6a95b9; }
.core-front { fill: #123762; stroke: #b2cce2; }

/* Three image-led entries introduce the company's areas before the chapters. */
.brand-values { max-width: none; }
.brand-values h2 { font-size: 44px; line-height: 1.25; }
.brand-values > p { margin-top: 20px; font-size: 18px; }
.brand-values > .source-note { font-size: 12px; }
.value-list { gap: 24px; margin-top: 48px; }
.value-list a { min-width: 0; padding: 0 0 24px; border: 0; border-radius: 8px; background: var(--surface); overflow: hidden; }
.value-list img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; }
.value-list a:last-child img { object-fit: contain; background: #fff; }
.value-list strong { margin: 8px 24px 0; font-size: 28px; font-weight: 300; }
.value-list span { margin: 8px 24px 0; font-size: 14px; }
.value-list .value-category { margin-top: 24px; font-size: 12px; color: var(--detail); }

.company-section { --ink: #fff; --muted: #ccc; --line: #ffffff33; background: #121314; color: var(--ink); }
.company-section .eyebrow { color: #53b1ff; }
.team-summary { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.team-summary article, .team-summary article:first-child { padding: 0 0 24px; border-color: var(--line); }
.team-summary article p { margin-top: 12px; color: var(--muted); font-size: 14px; }
.company-section .inline-tags { margin-top: 16px; color: #fff; }
.team-summary > .source-note { grid-column: 1 / -1; margin-top: 0; }
.team-experience { display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px; color: #ccc; font-size: 14px; }
.team-experience strong { font-size: 72px; font-weight: 300; line-height: 1.1; color: #fff; }

.section-showcase { grid-template-columns: 0.85fr 1.4fr; gap: 64px; padding: 0; }
.section-showcase .feature-copy h2 { margin-top: 16px; font-size: 44px; }
.section-showcase .feature-copy .eyebrow { margin-top: 0; color: var(--detail); font-size: 13px; }
.section-showcase .service-media { padding: 0; border: 0; background: transparent; }
.section-showcase .feature-copy p:not(.eyebrow) { font-size: 18px; }
.section-showcase .feature-copy .delivery-note { font-size: 16px; border-color: var(--accent); color: var(--ink); }
.home-page .collaboration-logos { margin-top: 64px; }
.collaboration-logos .logo-on-dark { background: #121314; border-color: #121314; }
.capability-strip { gap: 32px; margin-top: 48px; }
.note + .note { margin-top: 12px; }

#cloud { --ink: #fff; --muted: #ccc; --line: #ffffff33; background: #000; }
#cloud .eyebrow { color: #53b1ff; }
#cloud .service-media { --ink: #121314; --muted: #6b6b6b; --line: #e5e5e5; }
#cloud .feature-status { border-color: #53b1ff; color: #ccc; }
#cloud :focus-visible { outline-color: #53b1ff; }
.cloud-platforms article { display: flex; flex-direction: column; align-items: flex-start; padding: 24px; border: 0; background: #121314; }
.cloud-platforms h3 { margin-top: 8px; font-size: 35px; font-weight: 300; }
.cloud-platforms .text-link { display: inline-flex; margin-top: auto; align-self: flex-start; }
.cloud-platforms .inline-tags { margin-bottom: 32px; }
.cloud-platforms .service-media { position: relative; width: 100%; margin-bottom: 24px; padding: 0; border: 0; overflow: hidden; }
.cloud-platforms .service-image { aspect-ratio: 16 / 9; object-fit: contain; }
.cloud-platforms .service-media figcaption { margin: 0; padding: 12px 16px; }
.cloud-platforms .service-brand-image { position: absolute; top: 12px; right: 12px; width: 40px; margin: 0; border-radius: 50%; }
.cloud-notes { max-width: 900px; margin: 40px auto 0; padding-top: 24px; border-top: 1px solid var(--line); color: var(--muted); font-size: 16px; }

/* Blue contact area and charcoal footer. */
.brand-contact { --ink: #fff; --muted: #fff; --line: #ffffff33; background: #0f62fe; color: var(--muted); }
.site-footer { --ink: #fff; --muted: #c6c6c6; --line: #393939; background: #161616; color: var(--muted); }
.brand-contact :focus-visible, .site-footer :focus-visible { outline-color: #fff; }
.brand-contact h2 { color: #fff; }
.contact-layout { display: grid; grid-template-columns: 0.7fr 1.3fr; gap: 64px; align-items: start; }
.contact-layout .contact-methods { margin-top: 0; }
.brand-contact .contact-methods > div { padding: 0; border: 0; }
.brand-contact .contact-methods dd { color: #fff; }
@keyframes point-label { 0%, 10%, 100% { color: #53b1ff; border-color: #53b1ff; } 24%, 88% { color: #9aabb7; border-color: transparent; } }
@keyframes line-label { 0%, 10%, 34%, 100% { color: #9aabb7; border-color: transparent; } 16%, 24% { color: #53b1ff; border-color: #53b1ff; } }
@keyframes face-label { 0%, 24%, 100% { color: #9aabb7; border-color: transparent; } 34%, 85% { color: #53b1ff; border-color: #53b1ff; } }

@media (max-width: 1040px) {
  .js .site-nav, .js .home-page .site-nav.is-open { background: #fff; border-color: #e0e0e0; box-shadow: none; }
  .section-showcase { gap: 40px; }
  .contact-layout { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 800px) {
  .section { padding: 64px 0; }
  .home-hero { padding: 32px 0 48px; }
  .home-hero h1, .page-hero h1 { font-size: 36px; }
  .section h2, .brand-values h2, .section-showcase .feature-copy h2 { font-size: 32px; }
  .value-list { gap: 24px; }
  .section-showcase { grid-template-columns: 1fr; gap: 32px; padding: 0; }
  .team-summary { gap: 24px; }
  .team-experience strong { font-size: 54px; }
  .page-hero { padding-top: 56px; }
}
@media (max-width: 480px) {
  .section { padding: 48px 0; }
  .home-hero h1, .page-hero h1 { font-size: 32px; }
  .team-summary { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  .plain-link, .text-link { transition: none; }
}