html { scroll-snap-type: none; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 5px; }
.skip-link { position: fixed; top: -80px; left: 20px; z-index: 100; padding: 12px 20px; background: white; color: #102029; }
.skip-link:focus { top: 12px; }
.wrap { width: min(1280px, 100%); margin: auto; }
.serial-hero { padding: 118px clamp(20px, 5vw, 72px) 0; background: radial-gradient(ellipse at 85% 35%, #123c49 0, transparent 58%), #071116; }
.breadcrumb { font-size: 13px; color: var(--muted); }
.hero-layout { display: grid; grid-template-columns: 1.35fr 1fr; gap: 70px; align-items: center; padding: 64px 0; }
.eyebrow { font-size: 14px; letter-spacing: .08em; }
.serial-hero .eyebrow { font-size: 20px; text-transform: none; letter-spacing: .03em; }
.serial-hero h1 { font-size: clamp(34px, 3.6vw, 56px); line-height: 1.3; letter-spacing: -.045em; }
h1 em { font-style: normal; color: var(--green); }
.lead { margin: 24px 0 0; font-size: 17px; color: var(--muted); line-height: 1.9; }
.hero-diagram { padding: 28px; background: #0b1c25b3; border: 1px solid var(--line); border-radius: 16px; }
.diagram-label { display: block; margin-bottom: 22px; color: var(--muted); font-size: 11px; letter-spacing: .18em; }
.diagram-node { border: 1px solid var(--line); border-radius: 8px; padding: 15px 22px; background: #142a33; }
.diagram-node span { color: var(--muted); font-size: 10px; letter-spacing: .1em; }
.diagram-node strong { display: block; font-size: 21px; }
.diagram-node p { font-size: 13px; color: var(--muted); margin: 3px 0 0; }
.diagram-node.accent { border-color: #3dd6a380; background: #103b36; }
.flow-line { text-align: center; color: var(--green); line-height: 1.6; }
.value-strip { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.value-strip div { padding: 26px 16px 30px 0; }
.value-strip strong, .value-strip span { display: block; }
.value-strip strong { font-size: 18px; }
.value-strip span { color: var(--muted); font-size: 14px; margin-top: 5px; }
.serial-section { padding: 96px clamp(20px, 5vw, 72px); }
.serial-section h2 { font-size: clamp(29px, 3.2vw, 46px); line-height: 1.35; letter-spacing: -.035em; margin: 0 0 24px; }
.section-copy { max-width: 780px; font-size: 18px; color: var(--muted); line-height: 1.8; }
.light { background: #f6faf9; color: #102029; }
.light p, .light li { color: #526771; }
.light .eyebrow, .light .kicker { color: #027a63; }
.connection-grid, .screens-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; margin-top: 44px; }
.connection-card { padding: 32px; border: 1px solid #d6e1de; background: white; border-radius: 12px; }
.kicker { font-size: 12px; letter-spacing: .1em; font-weight: 800; color: var(--green); }
h3 { line-height: 1.4; }
.connection-card h3 { font-size: 32px; margin: 16px 0; }
h3 small { font-size: 14px; font-weight: 400; margin-left: 8px; color: #70858e; }
.connection-card ul { padding-left: 20px; line-height: 2; font-size: 15px; }
.route { display: flex; align-items: center; justify-content: space-between; gap: 10px; background: #eef5f2; border-radius: 6px; padding: 20px 16px; margin: 24px 0; font-size: 13px; }
.route strong { color: #027a63; font-size: 18px; }
.route b { color: #027a63; }
.connection-card .fit { border-top: 1px solid #d6e1de; padding-top: 20px; margin-bottom: 0; color: #027a63; font-size: 14px; }
.note { font-size: 13px; line-height: 1.8; margin-top: 24px; }
.screen-card { background: #0e2029; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.screen-heading { padding: 32px 32px 16px; }
.screen-heading h3 { font-size: 25px; margin: 12px 0; }
.screen-heading p { color: var(--muted); font-size: 15px; }
figure { margin: 0; padding: 20px 32px 24px; }
figure img { margin: auto; max-height: 530px; width: auto; height: auto; border-radius: 8px; box-shadow: 0 18px 40px #0003; }
figcaption { font-size: 12px; text-align: center; color: var(--muted); margin-top: 24px; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 36px; margin: 48px 0 60px; }
.feature-grid article { border-top: 1px solid #cddbd6; padding-top: 24px; }
.feature-grid h3 { font-size: 23px; margin: 16px 0; }
.feature-grid p, .data-detail p { line-height: 1.85; }
.data-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; padding: 40px; background: #e8f1ee; border-radius: 12px; }
.data-detail h3 { font-size: 28px; margin: 16px 0; }
.payload { min-width: 0; padding: 24px; background: #10242e; border-radius: 8px; color: #eef8f8; }
.payload p { color: #a9bdc2; font-size: 12px; margin: 0 0 16px; }
.payload pre { font-size: 15px; line-height: 1.9; overflow-x: auto; color: #75e7bc; }
.payload span { font-size: 12px; color: #a9bdc2; }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; list-style: none; padding: 0; margin: 48px 0 64px; }
.steps li { border-top: 1px solid var(--line); padding-top: 24px; }
.steps span { color: var(--green); font-size: 24px; }
.steps h3 { font-size: 20px; }
.steps p { color: var(--muted); font-size: 15px; }
.specs { margin: 0; }
.specs div { display: grid; grid-template-columns: 180px 1fr; gap: 30px; padding: 22px 0; border-top: 1px solid var(--line); }
.specs dt { font-weight: 700; }
.specs dd { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.8; }
.serial-section#requirements { background: #0d1d25; }
.serial-contact { background: radial-gradient(ellipse at right bottom, #174447, transparent 75%), #071116; }
.contact-layout { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 40px; }
.serial-contact p { color: var(--muted); }
.serial-contact .eyebrow { color: var(--green); }
.contact-links { display: flex; flex-direction: column; align-items: flex-start; gap: 16px; }
.contact-links > a:not(.button) { font-size: 24px; font-weight: 700; }
.contact-links span { color: var(--muted); font-size: 14px; }
@media (max-width: 1000px) { .hero-layout { gap: 32px; grid-template-columns: 1.2fr 1fr; } .route { flex-wrap: wrap; } .screen-heading, .connection-card { padding: 24px; } .data-detail { gap: 32px; } }
@media (max-width: 820px) { .hero-layout, .connection-grid, .screens-grid, .data-detail, .contact-layout { grid-template-columns: 1fr; } .hero-layout { padding: 44px 0; } .hero-diagram { max-width: 540px; width: 100%; margin: auto; } .serial-section { padding-top: 64px; padding-bottom: 64px; } .feature-grid { grid-template-columns: 1fr; gap: 24px; } .steps { grid-template-columns: 1fr 1fr; } .screen-heading { padding-bottom: 0; } }
@media (max-width: 480px) { .value-strip { grid-template-columns: 1fr; } .value-strip div { padding: 16px 0; border-bottom: 1px solid var(--line); } .specs div { grid-template-columns: 1fr; gap: 8px; } .data-detail { padding: 24px; } .payload { padding: 16px; } .steps { gap: 20px; } .route { gap: 6px; padding: 16px 10px; font-size: 11px; } figure { padding: 20px; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }