:root {
  --ink: #11181d;
  --ink-2: #1b252c;
  --paper: #f2f2ed;
  --paper-2: #e8e9e4;
  --white: #fff;
  --muted: #4f5b63;
  --line: rgba(17, 24, 29, .18);
  --blue: #287bff;
  --blue-dark: #155dd4;
  --acid: #baff35;
  --orange: #ff6a2d;
  --max: 1440px;
  --gutter: clamp(20px, 4vw, 64px);
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Consolas, monospace;
  --sans: "Manrope", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--sans); font-size: 16px; line-height: 1.55; overflow-x: hidden; }
body.menu-open { overflow: hidden; }
img, svg { max-width: 100%; }
a { color: inherit; }
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
::selection { color: var(--ink); background: var(--acid); }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 1000; top: 8px; left: 8px; transform: translateY(-140%); padding: 12px 18px; background: var(--acid); color: var(--ink); font-weight: 800; }
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 3px solid var(--orange); outline-offset: 4px; }

.site-header { position: fixed; z-index: 50; top: 0; left: 0; right: 0; min-height: 76px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 32px; padding: 0 var(--gutter); color: var(--white); border-bottom: 1px solid rgba(255,255,255,.16); background: rgba(17,24,29,.88); backdrop-filter: blur(18px); transition: min-height .25s ease, background .25s ease; }
.site-header.compact { min-height: 64px; background: rgba(17,24,29,.97); }
.brand { display: inline-flex; align-items: baseline; text-decoration: none; font-size: 23px; font-weight: 800; letter-spacing: -.06em; white-space: nowrap; }
.brand-quote { color: var(--acid); }
.brand small { margin-left: 9px; color: rgba(255,255,255,.6); font: 500 9px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.desktop-nav { display: flex; justify-content: center; gap: clamp(18px, 2.4vw, 38px); }
.desktop-nav a, .header-link { color: rgba(255,255,255,.72); font-size: 13px; font-weight: 600; text-decoration: none; transition: color .2s ease; }
.desktop-nav a:hover, .header-link:hover { color: var(--white); }
.header-actions { display: flex; align-items: center; gap: 20px; }
.button { min-height: 52px; display: inline-flex; align-items: center; justify-content: center; gap: 12px; padding: 0 22px; border: 1px solid transparent; text-decoration: none; font-weight: 800; line-height: 1.2; cursor: pointer; transition: transform .2s ease, background .2s ease, color .2s ease, border-color .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-small { min-height: 42px; padding: 0 17px; font-size: 13px; }
.button-acid { color: var(--ink); background: var(--acid); }
.button-acid:hover { background: #c8ff5d; }
.button-outline-light { color: var(--white); border-color: rgba(255,255,255,.45); background: transparent; }
.button-outline-light:hover { color: var(--ink); background: var(--white); }
.button-wide { width: 100%; border: 0; }
.menu-toggle { display: none; width: 46px; height: 46px; padding: 10px; border: 0; color: var(--white); background: transparent; }
.menu-toggle span { display: block; height: 2px; margin: 5px 0; background: currentColor; transition: transform .2s ease, opacity .2s ease; }
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-menu { position: fixed; z-index: 60; top: 76px; left: 0; right: 0; height: calc(100dvh - 76px); display: flex; flex-direction: column; gap: 4px; padding: 24px var(--gutter) 40px; overflow-y: auto; background: var(--ink); }
.mobile-menu[hidden] { display: none; }
.mobile-menu a:not(.button) { padding: 16px 0; color: var(--white); border-bottom: 1px solid rgba(255,255,255,.14); font-size: 20px; text-decoration: none; }
.mobile-menu .button { margin-top: 20px; }

.hero { position: relative; min-height: 100vh; display: grid; grid-template-columns: minmax(0, .92fr) minmax(460px, .75fr); grid-template-rows: 1fr auto; gap: 42px clamp(30px, 5vw, 88px); padding: clamp(130px, 14vh, 178px) var(--gutter) 0; color: var(--white); background: var(--ink); overflow: hidden; }
.hero::before { content: ""; position: absolute; width: 52vw; height: 52vw; right: -18vw; top: -18vw; border: 1px solid rgba(40,123,255,.45); border-radius: 50%; box-shadow: 0 0 90px rgba(40,123,255,.12), inset 0 0 90px rgba(40,123,255,.08); }
.hero-grid { position: absolute; inset: 0; opacity: .2; background-image: linear-gradient(rgba(255,255,255,.09) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.09) 1px, transparent 1px); background-size: 84px 84px; mask-image: linear-gradient(to right, #000, transparent 72%); }
.hero-copy, .hero-system, .hero-proof { position: relative; z-index: 2; }
.eyebrow, .kicker, .section-index, .map-label, .tariff-tag, .role-code { font: 600 11px/1.3 var(--mono); letter-spacing: .12em; text-transform: uppercase; }
.eyebrow { display: flex; align-items: center; gap: 12px; color: rgba(255,255,255,.65); }
.eyebrow span { color: var(--acid); }
.eyebrow.light { color: rgba(255,255,255,.58); }
.hero h1 { max-width: 930px; margin: 26px 0 24px; font-size: clamp(48px, 5.9vw, 100px); line-height: .98; letter-spacing: -.065em; }
.hero h1 em, h2 em { color: var(--acid); font-style: normal; }
.hero-lead { max-width: 760px; margin: 0; color: rgba(255,255,255,.72); font-size: clamp(17px, 1.35vw, 22px); line-height: 1.5; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 25px; margin-top: 38px; }
.text-link { color: inherit; font-weight: 700; text-decoration: none; border-bottom: 1px solid currentColor; }
.hero-caveat { max-width: 680px; margin: 34px 0 0; padding-left: 18px; color: rgba(255,255,255,.48); border-left: 2px solid var(--orange); font: 400 12px/1.65 var(--mono); }
.hero-system { align-self: center; min-width: 0; border: 1px solid rgba(255,255,255,.2); background: rgba(9,15,19,.74); box-shadow: 0 24px 80px rgba(0,0,0,.32); }
.system-bar { display: flex; justify-content: space-between; padding: 13px 15px; color: rgba(255,255,255,.55); border-bottom: 1px solid rgba(255,255,255,.15); font: 500 9px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.live-dot { display: flex; align-items: center; gap: 7px; }
.live-dot::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--acid); box-shadow: 0 0 0 5px rgba(186,255,53,.1); }
.source-card { margin: 16px; color: var(--ink); background: var(--paper); }
.source-card-head { display: flex; justify-content: space-between; align-items: center; padding: 13px 15px; border-bottom: 1px solid var(--line); font: 600 10px/1 var(--mono); }
.status { padding: 6px 8px; color: #35680d; background: rgba(186,255,53,.42); }
.equipment-drawing { padding: 8px 20px 0; color: var(--ink); }
.equipment-drawing svg { display: block; max-height: 260px; margin: auto; }
.source-meta { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); }
.source-meta div { min-width: 0; padding: 12px; border-right: 1px solid var(--line); }
.source-meta div:last-child { border-right: 0; }
.source-meta small { display: block; color: var(--muted); font: 500 8px/1.3 var(--mono); text-transform: uppercase; }
.source-meta b { display: block; margin-top: 4px; overflow: hidden; font-size: 10px; text-overflow: ellipsis; white-space: nowrap; }
.route-rail { display: grid; grid-template-columns: auto 1fr auto 1fr auto 1fr auto; align-items: center; gap: 8px; padding: 16px; border-top: 1px solid rgba(255,255,255,.15); }
.route-node { display: grid; place-items: center; gap: 6px; color: rgba(255,255,255,.48); text-align: center; }
.route-node i { width: 29px; height: 29px; display: grid; place-items: center; border: 1px solid currentColor; border-radius: 50%; font: 500 8px/1 var(--mono); font-style: normal; }
.route-node span { font: 500 7px/1 var(--mono); text-transform: uppercase; }
.route-node.current { color: var(--acid); }
.route-line { height: 1px; background: rgba(255,255,255,.2); overflow: hidden; }
.route-line b { display: block; width: 32%; height: 100%; background: var(--blue); animation: route 3s ease-in-out infinite; }
@keyframes route { from { transform: translateX(-110%); } to { transform: translateX(330%); } }
.hero-proof { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(3, 1fr); margin: 40px calc(var(--gutter) * -1) 0; padding: 0 var(--gutter); border-top: 1px solid rgba(255,255,255,.17); }
.hero-proof > div { min-height: 156px; display: grid; grid-template-columns: auto 1fr; align-content: center; column-gap: 16px; padding: 26px clamp(18px, 3vw, 52px); border-right: 1px solid rgba(255,255,255,.17); }
.hero-proof > div:last-child { border-right: 0; }
.hero-proof span { grid-row: 1 / 3; color: var(--blue); font: 600 11px/1 var(--mono); }
.hero-proof strong { font-size: 17px; }
.hero-proof p { margin: 6px 0 0; color: rgba(255,255,255,.54); font-size: 13px; }

.preprice, .route-section, .roles-section, .capabilities, .start-section, .tariff-section, .documents-section, .faq-section { padding: clamp(90px, 10vw, 160px) var(--gutter); }
.preprice { position: relative; overflow: hidden; }
.preprice::after { content: "SPECIFICATION"; position: absolute; right: -1vw; bottom: -4vw; color: rgba(17,24,29,.035); font-size: 13vw; font-weight: 800; letter-spacing: -.06em; pointer-events: none; }
.section-index { color: var(--muted); }
.preprice-head { display: grid; grid-template-columns: .35fr 1fr; gap: 40px; margin-top: 72px; }
.kicker { color: var(--blue-dark); }
h2 { margin: 0; font-size: clamp(38px, 5vw, 76px); line-height: 1.04; letter-spacing: -.055em; }
.preprice h2 em { color: var(--blue-dark); }
.decision-track { position: relative; display: grid; grid-template-columns: repeat(5, 1fr); margin: 86px 0 0; border-top: 2px solid var(--ink); }
.decision-stage { position: relative; min-height: 210px; padding: 28px 18px; border-right: 1px solid var(--line); }
.decision-stage::before { content: ""; position: absolute; top: -8px; left: 18px; width: 14px; height: 14px; border: 2px solid var(--ink); border-radius: 50%; background: var(--paper); }
.decision-stage.active { color: var(--white); background: var(--blue-dark); transform: translateY(-22px); }
.decision-stage.active::before { top: 14px; border-color: var(--acid); background: var(--acid); }
.decision-stage span { color: var(--muted); font: 600 10px/1 var(--mono); }
.decision-stage.active span { color: var(--acid); }
.decision-stage b { display: block; margin-top: 56px; font-size: 19px; }
.decision-stage small { display: block; margin-top: 8px; color: var(--muted); }
.decision-stage.active small { color: rgba(255,255,255,.88); }
.preprice-note { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; margin-top: 66px; padding-top: 32px; border-top: 1px solid var(--line); }
.preprice-note p { max-width: 620px; margin: 0; font-size: clamp(16px, 1.35vw, 20px); }
.preprice-note p:last-child { color: var(--muted); }

.route-section { color: var(--white); background: var(--ink-2); }
.section-heading { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(280px, .55fr); gap: 60px; align-items: end; }
.section-heading > p { max-width: 560px; margin: 0; color: var(--muted); font-size: 18px; }
.route-section .section-heading > p, .cad-section p { color: rgba(255,255,255,.62); }
.route-section .kicker, .cad-section .kicker { color: var(--acid); }
.ecosystem-map { display: grid; grid-template-columns: 1fr .16fr 1.1fr 1.2fr; align-items: stretch; margin-top: 80px; border: 1px solid rgba(255,255,255,.18); }
.map-source, .map-core { min-height: 390px; padding: 38px; }
.map-label { color: #71a8ff; }
.map-source h3, .map-core h3 { margin: 70px 0 22px; font-size: 28px; }
.map-source ul, .map-core ul, .tariff-card ul { margin: 0; padding: 0; list-style: none; }
.map-source li, .map-core li { padding: 9px 0; color: rgba(255,255,255,.58); border-bottom: 1px solid rgba(255,255,255,.12); }
.map-connector { display: grid; place-items: center; color: rgba(255,255,255,.72); border-left: 1px solid rgba(255,255,255,.15); border-right: 1px solid rgba(255,255,255,.15); writing-mode: vertical-rl; }
.map-connector span { font: 500 9px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; }
.map-core { position: relative; overflow: hidden; background: rgba(40,123,255,.08); }
.core-orbit { position: absolute; top: 24px; right: 24px; width: 100px; height: 100px; display: grid; place-items: center; border: 1px solid rgba(40,123,255,.6); border-radius: 50%; }
.core-orbit::before, .core-orbit::after { content: ""; position: absolute; inset: 13px; border: 1px solid rgba(40,123,255,.35); border-radius: 50%; }
.core-orbit::after { inset: -12px; border-style: dashed; }
.core-orbit span { width: 50px; height: 50px; display: grid; place-items: center; color: var(--ink); border-radius: 50%; background: var(--acid); font-weight: 800; }
.map-branches { display: grid; grid-template-rows: 1fr 1fr; }
.map-branches article { display: grid; grid-template-columns: auto 1fr; align-content: center; column-gap: 18px; padding: 32px; border-left: 1px solid rgba(255,255,255,.15); border-bottom: 1px solid rgba(255,255,255,.15); }
.map-branches article:last-child { border-bottom: 0; }
.map-branches span { grid-row: 1 / 3; color: var(--acid); font: 600 10px/1 var(--mono); }
.map-branches h3 { margin: 0; font-size: 25px; }
.map-branches p { margin: 8px 0 0; color: rgba(255,255,255,.56); }
.map-output { grid-column: 1 / -1; display: flex; align-items: center; gap: 26px; padding: 24px 38px; border-top: 1px solid rgba(255,255,255,.18); }
.map-output strong { font-size: 20px; }
.map-output > span { color: var(--acid); font-size: 30px; }
.map-output small { margin-left: auto; color: rgba(255,255,255,.72); font: 500 10px/1.4 var(--mono); }
.precision-note { max-width: 980px; margin: 34px 0 0; color: rgba(255,255,255,.55); font-family: var(--mono); font-size: 12px; }
.precision-note b { color: var(--orange); }

.roles-section { background: var(--paper-2); }
.role-switcher { margin-top: 70px; }
.role-tabs { display: grid; grid-template-columns: repeat(3, 1fr); border-bottom: 1px solid var(--ink); }
.role-tabs button { min-height: 70px; padding: 14px 20px; border: 0; border-right: 1px solid var(--line); color: var(--muted); background: transparent; font-weight: 700; cursor: pointer; }
.role-tabs button[aria-selected="true"] { color: var(--white); background: var(--ink); }
.role-panel { min-height: 390px; display: grid; grid-template-columns: .18fr .95fr .85fr; gap: 50px; align-items: center; padding: 52px 0; border-bottom: 1px solid var(--ink); }
.role-panel[hidden] { display: none; }
.role-code { align-self: start; color: var(--blue-dark); }
.role-panel h3 { margin: 0 0 20px; font-size: clamp(27px, 3vw, 46px); line-height: 1.05; letter-spacing: -.04em; }
.role-panel p { max-width: 560px; color: var(--muted); }
.role-panel ul { margin: 0; padding: 0; list-style: none; }
.role-panel li { padding: 13px 0; border-bottom: 1px solid var(--line); }
.role-diagram { grid-column: 2 / -1; display: flex; align-items: center; gap: 18px; margin-top: 12px; font: 600 11px/1 var(--mono); text-transform: uppercase; }
.role-diagram span { padding: 13px 16px; border: 1px solid var(--ink); }
.role-diagram i { color: var(--blue); font-size: 25px; font-style: normal; }

.capabilities { display: grid; grid-template-columns: .7fr 1.3fr; gap: clamp(50px, 8vw, 140px); }
.cap-intro { position: sticky; top: 120px; align-self: start; }
.cap-intro p:last-child { max-width: 560px; color: var(--muted); font-size: 18px; }
.cap-list { border-top: 1px solid var(--ink); }
.cap-list article { display: grid; grid-template-columns: 70px 1fr; gap: 25px; padding: 30px 0; border-bottom: 1px solid var(--line); }
.cap-list article > span { color: var(--blue-dark); font: 600 11px/1 var(--mono); }
.cap-list h3 { margin: 0; font-size: 23px; }
.cap-list p { margin: 9px 0 0; color: var(--muted); }

.cad-section { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(40px, 8vw, 130px); padding: clamp(90px, 10vw, 150px) var(--gutter); color: var(--white); background: #0c1419; }
.cad-copy h2 { margin: 28px 0; }
.cad-copy > p:not(.eyebrow) { max-width: 640px; font-size: 18px; }
.cad-options { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; margin: 42px 0 30px; background: rgba(255,255,255,.16); }
.cad-options article { padding: 24px; background: #0c1419; }
.cad-options span { color: var(--acid); font: 600 11px/1 var(--mono); }
.cad-options h3 { margin: 26px 0 10px; font-size: 17px; }
.cad-options p { margin: 0; font-size: 13px; }
.cad-visual { align-self: center; min-width: 0; }
.cad-screen { border: 1px solid rgba(255,255,255,.25); color: rgba(255,255,255,.75); background: #101e27; box-shadow: 0 40px 90px rgba(0,0,0,.38); }
.cad-toolbar, .cad-status { display: flex; justify-content: space-between; gap: 12px; padding: 14px 18px; border-bottom: 1px solid rgba(255,255,255,.16); font: 500 9px/1 var(--mono); }
.cad-screen svg { display: block; width: 100%; }
.cad-status { border-top: 1px solid rgba(255,255,255,.16); border-bottom: 0; }
.cad-status span { color: rgba(255,255,255,.76); }
.cad-status b { color: var(--acid); }
.cad-output { display: flex; justify-content: center; align-items: center; gap: 17px; margin-top: 24px; color: rgba(255,255,255,.55); font: 500 10px/1 var(--mono); }
.cad-output i { color: var(--acid); font-size: 24px; font-style: normal; }

.start-section { background: var(--paper-2); }
.start-steps { display: grid; grid-template-columns: repeat(3, 1fr); margin: 75px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--ink); border-left: 1px solid var(--ink); }
.start-steps li { min-height: 270px; display: grid; grid-template-columns: auto 1fr; align-content: space-between; gap: 22px; padding: 28px; border-right: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.start-steps span { color: var(--blue-dark); font: 600 11px/1 var(--mono); }
.start-steps h3 { margin: 0 0 10px; font-size: 21px; }
.start-steps p { margin: 0; color: var(--muted); }

.tariff-section { background: var(--white); }
.tariff-cards { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; margin-top: 75px; }
.tariff-card { min-width: 0; min-height: 480px; display: flex; flex-direction: column; padding: 34px; border: 1px solid var(--ink); }
.tariff-card.primary { color: var(--white); background: var(--ink); }
.tariff-card.acid { background: var(--acid); }
.tariff-card.services { background: var(--paper); }
.tariff-price { margin: 74px 0 24px; font-size: clamp(30px, 3.5vw, 52px); font-weight: 800; line-height: 1; letter-spacing: -.05em; }
.tariff-price small, .tariff-price span { font-size: 13px; font-weight: 600; letter-spacing: 0; }
.tariff-card > p:not(.tariff-price) { color: var(--muted); }
.tariff-card.primary > p:not(.tariff-price) { color: rgba(255,255,255,.58); }
.tariff-card ul { margin-top: auto; padding-top: 30px; }
.tariff-card li { padding: 10px 0; border-top: 1px solid currentColor; font-size: 13px; }
.tariff-card dl { margin: 72px 0 0; }
.tariff-card dl div { display: flex; justify-content: space-between; gap: 20px; padding: 15px 0; border-top: 1px solid var(--line); }
.tariff-card dt { color: var(--muted); }
.tariff-card dd { margin: 0; font-weight: 800; white-space: nowrap; }
.tariff-details { min-width: 0; max-width: 100%; margin-top: 20px; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.tariff-details summary { display: flex; justify-content: space-between; gap: 20px; padding: 24px 0; font-size: 18px; font-weight: 800; cursor: pointer; list-style: none; }
.tariff-details summary::-webkit-details-marker { display: none; }
.tariff-details summary span { font-size: 25px; transition: transform .2s ease; }
.tariff-details[open] summary span { transform: rotate(45deg); }
.tariff-table-wrap { width: 100%; max-width: 100%; overflow-x: auto; overscroll-behavior-inline: contain; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { min-width: 180px; padding: 16px; border: 1px solid var(--line); text-align: left; }
th { color: var(--white); background: var(--ink); font-size: 12px; }
.tariff-details > p { color: var(--muted); font-size: 13px; }

.documents-section { color: var(--white); background: var(--ink); }
.documents-section .kicker { color: #71a8ff; }
.documents-section .section-heading > p { color: rgba(255,255,255,.55); }
.documents-grid { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 75px; border-top: 1px solid rgba(255,255,255,.22); border-left: 1px solid rgba(255,255,255,.22); }
.documents-grid a { min-height: 300px; display: flex; flex-direction: column; padding: 30px; border-right: 1px solid rgba(255,255,255,.22); border-bottom: 1px solid rgba(255,255,255,.22); text-decoration: none; transition: color .2s ease, background .2s ease; }
.documents-grid a:hover { color: var(--ink); background: var(--acid); }
.documents-grid a > span { color: #71a8ff; font: 600 10px/1 var(--mono); }
.documents-grid a:hover > span { color: var(--blue-dark); }
.documents-grid h3 { margin: 58px 0 12px; font-size: 21px; line-height: 1.2; }
.documents-grid p { margin: 0; color: rgba(255,255,255,.5); font-size: 13px; }
.documents-grid a:hover p { color: rgba(17,24,29,.65); }
.documents-grid b { margin-top: auto; font-size: 13px; }
.documents-grid .docs-help { background: rgba(40,123,255,.14); }

.faq-section { display: grid; grid-template-columns: .65fr 1.35fr; gap: clamp(50px, 9vw, 150px); }
.faq-title { position: sticky; top: 120px; align-self: start; }
.faq-list { border-top: 1px solid var(--ink); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { display: flex; justify-content: space-between; gap: 20px; padding: 24px 0; font-size: 18px; font-weight: 700; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span { color: var(--blue-dark); font-size: 24px; transition: transform .2s ease; }
.faq-list details[open] summary span { transform: rotate(45deg); }
.faq-list p { max-width: 760px; margin: -6px 0 26px; color: var(--muted); }

.contact-section { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(45px, 8vw, 130px); padding: clamp(90px, 10vw, 150px) var(--gutter); color: var(--white); background: var(--blue-dark); }
.contact-copy h2 { margin: 28px 0; }
.contact-copy .eyebrow.light { color: rgba(255,255,255,.88); }
.contact-copy > p:not(.eyebrow) { max-width: 590px; color: rgba(255,255,255,.88); font-size: 18px; }
.contact-person { display: flex; align-items: center; gap: 18px; margin-top: 48px; }
.contact-person > span { width: 54px; height: 54px; display: grid; place-items: center; color: var(--ink); border-radius: 50%; background: var(--acid); font-weight: 800; }
.contact-person small, .contact-person strong, .contact-person a { display: block; }
.contact-person small { color: rgba(255,255,255,.82); font: 500 9px/1.2 var(--mono); text-transform: uppercase; }
.contact-person strong { margin-top: 5px; }
.contact-person a { margin-top: 2px; color: var(--white); font-size: 13px; }
.contact-form { padding: clamp(28px, 4vw, 52px); color: var(--ink); background: var(--paper); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-form label { display: block; margin-bottom: 18px; font: 600 11px/1.3 var(--mono); text-transform: uppercase; }
.contact-form input, .contact-form select, .contact-form textarea { width: 100%; margin-top: 8px; padding: 14px 15px; border: 1px solid rgba(17,24,29,.3); border-radius: 0; color: var(--ink); background: var(--white); text-transform: none; }
.contact-form textarea { min-height: 115px; resize: vertical; }
.contact-form .consent { display: flex; gap: 10px; align-items: flex-start; color: var(--muted); font: 400 11px/1.5 var(--sans); text-transform: none; }
.consent input { width: 18px; height: 18px; margin: 1px 0 0; accent-color: var(--blue-dark); }
.form-note { margin: 13px 0 0; color: var(--muted); font-size: 11px; }

.site-footer { display: grid; grid-template-columns: .45fr .8fr .75fr; gap: 50px; align-items: start; padding: 60px var(--gutter) 26px; color: var(--white); background: #080d10; }
.footer-brand { font-size: 28px; }
.site-footer > p { max-width: 500px; margin: 0; color: rgba(255,255,255,.52); }
.site-footer nav { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.site-footer nav a { color: rgba(255,255,255,.72); font-size: 13px; text-decoration: none; }
.footer-bottom { grid-column: 1 / -1; display: flex; justify-content: space-between; gap: 30px; margin-top: 52px; padding-top: 22px; color: rgba(255,255,255,.68); border-top: 1px solid rgba(255,255,255,.14); font: 400 9px/1.5 var(--mono); text-transform: uppercase; }

[data-reveal] { opacity: 0; transform: translateY(24px); transition: opacity .65s ease, transform .65s cubic-bezier(.2,.7,.2,1); }
[data-reveal].visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1180px) {
  .desktop-nav { display: none; }
  .site-header { grid-template-columns: auto 1fr auto; }
  .header-actions { justify-self: end; }
  .menu-toggle { display: block; }
  .hero { grid-template-columns: 1fr .75fr; }
  .hero h1 { font-size: clamp(52px, 7vw, 78px); }
  .source-meta { grid-template-columns: 1fr 1fr; }
  .source-meta div:nth-child(2) { border-right: 0; }
  .source-meta div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .ecosystem-map { grid-template-columns: 1fr .1fr 1.1fr; }
  .map-branches { grid-column: 1 / -1; grid-template-columns: 1fr 1fr; grid-template-rows: none; border-top: 1px solid rgba(255,255,255,.15); }
  .map-branches article { border-bottom: 0; }
  .capabilities, .cad-section { grid-template-columns: 1fr 1.3fr; }
  .documents-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .header-link, .header-actions .button { display: none; }
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .hero-system { width: min(100%, 680px); }
  .hero-proof { grid-template-columns: 1fr; }
  .hero-proof > div { min-height: 120px; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.17); }
  .preprice-head, .section-heading, .capabilities, .cad-section, .faq-section, .contact-section { grid-template-columns: 1fr; }
  .decision-track { grid-template-columns: 1fr; border-top: 0; border-left: 2px solid var(--ink); }
  .decision-stage { min-height: auto; padding: 22px 30px; border-right: 0; border-bottom: 1px solid var(--line); }
  .decision-stage::before { top: 25px; left: -8px; }
  .decision-stage.active { transform: translateX(14px); }
  .decision-stage.active::before { top: 25px; left: -22px; }
  .decision-stage b { margin-top: 20px; }
  .ecosystem-map { grid-template-columns: 1fr; }
  .map-source, .map-core { min-height: auto; }
  .map-connector { min-height: 70px; border: 0; border-top: 1px solid rgba(255,255,255,.15); border-bottom: 1px solid rgba(255,255,255,.15); writing-mode: horizontal-tb; }
  .map-branches { grid-column: auto; }
  .map-output { grid-column: auto; flex-wrap: wrap; }
  .map-output small { width: 100%; margin-left: 0; }
  .role-panel { grid-template-columns: 70px 1fr; }
  .role-panel > ul { grid-column: 2; }
  .role-diagram { grid-column: 2; flex-wrap: wrap; }
  .cap-intro, .faq-title { position: static; }
  .cad-section { gap: 75px; }
  .start-steps, .tariff-cards { grid-template-columns: 1fr 1fr; }
  .tariff-card.services { grid-column: 1 / -1; min-height: 360px; }
  .site-footer { grid-template-columns: 1fr 1fr; }
  .site-footer nav { grid-column: 2; grid-row: 1 / 3; }
}

@media (max-width: 640px) {
  :root { --gutter: 20px; }
  .site-header { min-height: 64px; gap: 12px; }
  .brand { font-size: 20px; }
  .brand small { display: none; }
  .mobile-menu { top: 64px; height: calc(100dvh - 64px); }
  .hero { gap: 60px; padding-top: 112px; }
  .hero h1 { font-size: clamp(42px, 13.5vw, 63px); }
  .hero-lead { font-size: 16px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .hero-actions .button { width: 100%; }
  .hero-actions .text-link { align-self: flex-start; }
  .hero-system { margin: 0; }
  .system-bar { gap: 8px; }
  .live-dot { font-size: 0; }
  .source-card { margin: 8px; }
  .source-meta { grid-template-columns: 1fr 1fr; }
  .route-rail { grid-template-columns: repeat(4, 1fr); gap: 5px; }
  .route-line { display: none; }
  .preprice, .route-section, .roles-section, .capabilities, .start-section, .tariff-section, .documents-section, .faq-section { padding-top: 82px; padding-bottom: 82px; }
  .preprice-head { margin-top: 42px; }
  h2 { font-size: clamp(37px, 12vw, 54px); }
  .preprice-note { grid-template-columns: 1fr; gap: 24px; }
  .section-heading { gap: 28px; }
  .section-heading > p { font-size: 16px; }
  .ecosystem-map { margin-top: 48px; }
  .map-source, .map-core { padding: 27px; }
  .map-source h3, .map-core h3 { margin-top: 55px; }
  .map-branches { grid-template-columns: 1fr; }
  .map-branches article { border-left: 0; border-bottom: 1px solid rgba(255,255,255,.15); }
  .map-output { padding: 24px; gap: 13px; }
  .role-tabs { grid-template-columns: 1fr; border: 1px solid var(--ink); }
  .role-tabs button { min-height: 54px; border-right: 0; border-bottom: 1px solid var(--line); }
  .role-panel { grid-template-columns: 1fr; gap: 24px; }
  .role-panel > ul, .role-diagram { grid-column: 1; }
  .role-diagram { gap: 8px; }
  .role-diagram span { padding: 11px; font-size: 9px; }
  .cap-list article { grid-template-columns: 46px 1fr; }
  .cad-options { grid-template-columns: 1fr; }
  .cad-status { display: grid; grid-template-columns: 1fr auto; }
  .cad-output { flex-wrap: wrap; }
  .start-steps, .tariff-cards, .documents-grid { grid-template-columns: minmax(0, 1fr); }
  .start-steps li { min-height: 220px; }
  .tariff-card, .tariff-card.services { grid-column: auto; min-height: 430px; }
  .documents-grid a { min-height: 250px; }
  .faq-list summary { font-size: 16px; }
  .contact-section { padding-top: 82px; padding-bottom: 82px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .site-footer { grid-template-columns: 1fr; }
  .site-footer nav { grid-column: 1; grid-row: auto; }
  .footer-bottom { flex-direction: column; }
}

@media (max-width: 380px) {
  .hero h1 { font-size: 40px; }
  .button { padding: 0 16px; }
  .equipment-drawing { padding-inline: 8px; }
  .source-meta b { font-size: 9px; }
  .route-node span { font-size: 6px; }
  .map-output strong { font-size: 17px; }
  .contact-form { padding: 22px 17px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  [data-reveal] { opacity: 1; transform: none; }
}