.engineering-body { min-height: 100vh; overflow-x: hidden; background: linear-gradient(180deg, var(--turquoise-subtle) 0, var(--paper) 34rem); }
.engineering-shell { width: min(100% - 32px, 1240px); margin: 0 auto; padding: 20px 0 72px; }
.engineering-header { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 18px; padding: 14px 0; background: color-mix(in srgb, var(--paper) 88%, transparent); backdrop-filter: blur(18px); }
.engineering-brand { display: flex; flex: 0 0 auto; align-items: center; gap: 12px; color: var(--ink); text-decoration: none; }
.engineering-brand img { width: 106px; height: auto; }
.engineering-product { color: var(--green); font-size: 12px; font-weight: 850; letter-spacing: .09em; text-transform: uppercase; }
.engineering-topic-nav { display: flex; flex: 1; gap: 6px; overflow-x: auto; padding: 2px 0 5px; scrollbar-width: thin; }
.engineering-topic-nav a { flex: 0 0 auto; border: 1px solid var(--line); border-radius: 999px; padding: 9px 12px; background: rgba(255,255,255,.88); color: var(--muted); text-decoration: none; font-weight: 750; }
.engineering-topic-nav a:hover { border-color: var(--turquoise); color: var(--green); transform: translateY(-1px); }
.engineering-topic-nav a[aria-current="page"] { border-color: var(--turquoise); background: var(--turquoise-soft); color: var(--green); }
.engineering-topic-nav a[aria-current="page"]::before { content: "• "; }
.engineering-topic-nav a:focus-visible, .engineering-card a:focus-visible, .engineering-brand:focus-visible, .engineering-footer a:focus-visible { outline: 3px solid color-mix(in srgb, var(--turquoise) 45%, transparent); outline-offset: 3px; }
.engineering-hero { display: grid; grid-template-columns: minmax(0,1.05fr) minmax(320px,.95fr); gap: 28px; align-items: center; padding: clamp(44px,8vw,92px) 0 42px; }
.engineering-hero h1 { max-width: none; margin: 8px 0 12px; font-size: clamp(48px,8vw,88px); line-height: .96; letter-spacing: -.055em; }
.engineering-kicker { margin: 0 0 18px; color: var(--green); font-size: clamp(24px,4vw,38px); font-weight: 800; letter-spacing: -.035em; }
.engineering-lead { max-width: 68ch; color: var(--muted); font-size: 17px; line-height: 1.7; }
.engineering-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.engineering-section { padding: 38px 0; scroll-margin-top: 90px; }
.engineering-section-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 20px; }
.engineering-section-heading h2 { margin: 0; font-size: clamp(28px,4vw,44px); letter-spacing: -.04em; }
.engineering-section-heading p { max-width: 58ch; margin: 0; color: var(--muted); line-height: 1.6; }
.engineering-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 14px; }
.engineering-card { border: 1px solid var(--line); border-radius: 22px; padding: 22px; background: rgba(255,255,255,.94); box-shadow: var(--shadow-sm); }
.engineering-card h2, .engineering-card h3 { margin: 0 0 10px; letter-spacing: -.025em; }
.engineering-card p { margin: 0 0 16px; color: var(--muted); line-height: 1.6; }
.engineering-card a { color: var(--green); font-weight: 800; }
.engineering-card:hover { border-color: color-mix(in srgb, var(--turquoise) 42%, var(--line)); transform: translateY(-2px); }
.engineering-diagram { border: 1px solid var(--line); border-radius: 26px; padding: 22px; background: linear-gradient(180deg,var(--turquoise-subtle),#fff); box-shadow: var(--shadow-sm); }
.engineering-diagram-stack { display: grid; gap: 12px; }
.engineering-layer { border: 1px solid var(--line); border-radius: 16px; padding: 14px; background: #fff; color: var(--green); font-weight: 800; text-align: center; }
.engineering-connector { color: var(--turquoise); font-size: 22px; font-weight: 900; line-height: .7; text-align: center; }
.engineering-location { position: relative; display: grid; min-height: 300px; overflow: hidden; place-items: center; }
.engineering-location::before { position: absolute; width: 260px; height: 260px; border: 1px solid color-mix(in srgb, var(--turquoise) 35%, transparent); border-radius: 45% 55% 52% 48%; content: ""; transform: rotate(-8deg); }
.engineering-location-mark { position: relative; display: grid; place-items: center; width: 84px; height: 84px; border-radius: 50%; background: var(--turquoise); box-shadow: 0 0 0 18px color-mix(in srgb, var(--turquoise) 12%, transparent); color: #fff; font-weight: 900; }
.engineering-highlight { display: grid; grid-template-columns: minmax(220px,.7fr) minmax(0,1.3fr); gap: 26px; align-items: center; }
.engineering-note { border-left: 3px solid var(--turquoise); padding: 14px 16px; background: var(--turquoise-subtle); color: var(--muted); line-height: 1.6; }
.engineering-footer { margin-top: 52px; padding-top: 24px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; color: var(--muted); }
.engineering-footer nav { display: flex; flex-wrap: wrap; gap: 16px; }
.engineering-footer a { color: var(--green); font-weight: 750; }
.engineering-enhanced [data-engineering-reveal] { opacity: 0; transform: translateY(10px); transition: opacity .45s ease, transform .45s ease; }
.engineering-enhanced [data-engineering-reveal].engineering-revealed { opacity: 1; transform: none; }
@media (max-width: 900px) { .engineering-hero { grid-template-columns: 1fr; } .engineering-grid { grid-template-columns: repeat(2,minmax(0,1fr)); } .engineering-highlight { grid-template-columns: 1fr; } }
@media (max-width: 620px) { .engineering-shell { width: min(100% - 24px,1240px); } .engineering-header { align-items: flex-start; flex-direction: column; } .engineering-topic-nav { width: 100%; } .engineering-grid { grid-template-columns: 1fr; } .engineering-hero { padding-top: 34px; } .engineering-section-heading { align-items: flex-start; flex-direction: column; } }
@media (prefers-reduced-motion: reduce) { .engineering-body *, .engineering-body *::before, .engineering-body *::after { scroll-behavior: auto !important; transition-duration: .001ms !important; animation-duration: .001ms !important; animation-iteration-count: 1 !important; } }