:root {
    color-scheme: dark;
    --background: #05060d;
    --text: #f5f7ff;
    --muted: #a1abc7;
    --border: rgba(151, 170, 255, .13);
    --gradient: linear-gradient(110deg, #168bff 5%, #287bff 48%, #7447ff 100%);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 32px; }
body { margin: 0; background: var(--background); color: var(--text); font-family: Arial, Helvetica, sans-serif; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
p { color: var(--muted); line-height: 1.65; }
h1, h2, h3, p { margin-top: 0; }
a, button { -webkit-tap-highlight-color: transparent; }
a:focus-visible, button:focus-visible { outline: 3px solid #90b6ff; outline-offset: 6px; }
::selection { background: #4936aa; color: white; }
.container { width: calc(100% - 64px); max-width: 1280px; margin-inline: auto; }
.svg-definitions { position: absolute; width: 0; height: 0; overflow: hidden; }
.skip-link { position: fixed; top: 10px; left: 20px; transform: translateY(-160%); z-index: 20; padding: 14px; background: #243d94; border-radius: 8px; }
.skip-link:focus { transform: translateY(0); }

/* Floating navigation */
.site-header { position: relative; z-index: 5; display: flex; align-items: center; justify-content: space-between; gap: 28px; min-height: 84px; margin-top: 16px; padding: 14px 46px; border: 1px solid var(--border); border-radius: 22px; background: rgba(8, 11, 24, .72); backdrop-filter: blur(18px); }
.brand { display: inline-flex; flex-direction: column; align-items: center; flex-shrink: 0; }
.brand-name { font-size: 42px; font-weight: 800; letter-spacing: -2px; line-height: 1; }
.brand-name > span { color: #667bff; }
.brand-caption { font-size: 9px; letter-spacing: 7px; margin: 3px -7px 0 0; }
.navigation { display: flex; gap: 44px; align-items: center; }
.navigation > a { position: relative; padding: 18px 0; color: #aeb9d3; font-size: 14px; white-space: nowrap; }
.navigation > a:hover, .navigation > a.active { color: #8e91ff; }
.navigation > a.active:after { content: ""; position: absolute; bottom: 2px; left: 0; right: 0; height: 2px; background: var(--gradient); }
.button { display: inline-flex; justify-content: center; align-items: center; gap: 12px; min-height: 58px; padding: 16px 28px; border: 1px solid transparent; border-radius: 16px; font-size: 17px; line-height: 1.35; color: white; transition: transform .2s, box-shadow .2s, border-color .2s; }
.button .arrow { width: 19px; height: 19px; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--gradient); border-color: rgba(129, 130, 255, .4); box-shadow: 0 0 26px rgba(53, 66, 255, .25); }
.button-primary:hover { box-shadow: 0 0 32px rgba(53, 66, 255, .4); }
.button-outline { background: linear-gradient(#090d29, #090d29) padding-box, var(--gradient) border-box; border-color: transparent; box-shadow: 0 0 18px #3449ff22; font-size: 14px; min-height: 50px; padding: 12px 18px; }
.menu-toggle { display: none; }

/* Reference composition: typography above a quiet, oversized orbit. */
.hero { position: relative; isolation: isolate; overflow: hidden; margin-top: -100px; padding-top: 100px; border-bottom: 1px solid var(--border); background: radial-gradient(ellipse at 50% 44%, #11163366, transparent 58%); }
.hero-orbit { position: absolute; z-index: -1; width: 1120px; height: 1050px; top: -60px; left: 50%; transform: translateX(-50%); border-radius: 50%; border: 1px solid #18399626; background: radial-gradient(ellipse at 50% 51%, transparent 45%, #0b235329 80%, #112c651f); box-shadow: 0 -35px 100px #043ae015; mask-image: linear-gradient(#000 30%, transparent 85%); }
.hero-content { text-align: center; padding-top: 68px; padding-bottom: 40px; }
.eyebrow { color: #b5c6f4; font-size: 10px; font-weight: 500; text-transform: uppercase; letter-spacing: 5px; margin-bottom: 29px; line-height: 1.7; }
.hero h1 { font-size: clamp(56px, 5.3vw, 80px); line-height: 1.02; font-weight: 700; letter-spacing: -3.5px; margin-bottom: 24px; }
.gradient-text { background: var(--gradient); background-clip: text; -webkit-text-fill-color: transparent; }
.hero-description { font-size: 20px; line-height: 1.5; margin: 0 auto 29px; max-width: 700px; }
.button-caption { font-size: 9px; letter-spacing: 3px; text-transform: uppercase; margin: 18px 0 24px; color: #91a5cb; }
.advantages { max-width: 1020px; margin: 0 auto; display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--border); border-radius: 17px; background: #080b1680; padding: 28px 10px; }
.advantages > div { padding: 0 12px; }
.advantages > div + div { border-left: 1px solid var(--border); }
.advantages dt { font-size: 10px; text-transform: uppercase; letter-spacing: 2px; color: var(--muted); margin-bottom: 10px; }
.advantages dd { margin: 0; font-size: 25px; font-weight: 700; color: #7d8cff; letter-spacing: -.6px; }

/* Content sections */
.section { padding: 90px 0; }
.solutions { padding-top: 44px; }
.section-heading { text-align: center; margin-bottom: 32px; }
.section-heading .eyebrow { margin-bottom: 14px; }
h2 { font-size: clamp(32px, 3.15vw, 48px); line-height: 1.15; letter-spacing: -1.5px; margin-bottom: 14px; }
h3 { font-size: 22px; letter-spacing: -.5px; margin-bottom: 12px; }
.section-heading > p:last-child { font-size: 17px; margin-bottom: 0; }
.solution-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.solution-card { padding: 28px 32px 32px; border: 1px solid var(--border); border-radius: 13px; background: linear-gradient(135deg, #0d10204d, #080a104d); transition: border-color .2s; }
.solution-card:hover { border-color: #5969c855; }
.solution-icon { width: 32px; height: 32px; color: #6682ff; margin-bottom: 24px; }
.solution-card p, .steps p { font-size: 15px; line-height: 1.75; margin-bottom: 0; }
.process { border-top: 1px solid var(--border); background: #090b1640; }
.steps { list-style: none; margin: 54px 0 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 36px; }
.steps li { position: relative; }
.step-number { display: block; width: 48px; font-size: 28px; font-weight: 700; color: #778aff; margin-bottom: 24px; }
.steps li:not(:last-child):after { content: ""; position: absolute; left: 64px; right: 0; top: 16px; height: 1px; background: linear-gradient(90deg, #576bb444, #576bb410); }
.contact { text-align: center; padding: 105px 0 112px; border-block: 1px solid var(--border); background: radial-gradient(ellipse at 50% 100%, #27216b26, transparent 70%); }
.contact .eyebrow { margin-bottom: 20px; }
.contact p:not(.eyebrow) { font-size: 18px; margin-bottom: 30px; }
.site-footer { padding-top: 48px; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 30px; }
.site-footer .brand-name { font-size: 32px; }
.site-footer .brand-caption { font-size: 7px; letter-spacing: 5px; }
.site-footer p { font-size: 13px; margin: 20px 0 0; }
.site-footer nav { display: flex; gap: 30px; color: var(--muted); font-size: 14px; }
.site-footer nav a { display: inline-flex; align-items: center; min-height: 44px; }
.site-footer nav a:hover { color: white; }
.copyright { width: 100%; padding: 23px 0; border-top: 1px solid var(--border); color: #929bb2; font-size: 12px; }

@media (min-width: 1600px) {
    .hero-content { padding-top: 100px; padding-bottom: 55px; }
    .hero h1 { margin-bottom: 28px; }
    .hero-description { margin-bottom: 36px; }
    .advantages { margin-top: 34px; }
    .solutions { padding-top: 60px; }
}
@media (max-width: 1100px) {
    .site-header { padding-inline: 26px; gap: 20px; }
    .navigation { gap: 25px; }
    .header-cta { font-size: 12px; padding-inline: 12px; gap: 8px; }
    .brand-name { font-size: 36px; }
    .hero h1 { font-size: clamp(54px, 6vw, 72px); }
    .hero-description { font-size: 18px; }
    .advantages dd { font-size: 22px; }
    .solution-card { padding: 25px; }
    .steps { gap: 24px; }
}
@media (max-width: 800px) {
    .container { width: calc(100% - 40px); }
    .site-header { min-height: 72px; padding: 16px 22px; border-radius: 18px; flex-wrap: wrap; }
    .brand-name { font-size: 32px; }
    .brand-caption { font-size: 7px; letter-spacing: 5px; }
    .header-cta { display: none; }
    .menu-toggle:not([hidden]) { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; width: 44px; height: 44px; background: transparent; border: 1px solid var(--border); border-radius: 10px; color: var(--text); cursor: pointer; }
    .menu-toggle span { width: 19px; height: 1px; background: currentColor; transition: transform .2s; }
    .menu-toggle[aria-expanded=true] span:first-child { transform: translateY(3.5px) rotate(45deg); }
    .menu-toggle[aria-expanded=true] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }
    .navigation { width: 100%; justify-content: space-between; gap: 15px; }
    .navigation[hidden] { display: none; }
    .hero { margin-top: -106px; padding-top: 106px; }
    .hero-content { padding-top: 75px; padding-bottom: 40px; }
    .hero h1 { font-size: 58px; letter-spacing: -2.5px; }
    .hero-orbit { width: 900px; }
    .advantages { grid-template-columns: repeat(2, 1fr); row-gap: 26px; }
    .advantages > div:nth-child(3) { border-left: 0; }
    .solution-grid { grid-template-columns: 1fr; }
    .solution-card { padding: 28px; }
    .solution-icon { margin-bottom: 18px; }
    .section { padding: 64px 0; }
    .steps { grid-template-columns: 1fr; gap: 32px; margin-top: 38px; }
    .steps li { padding-left: 68px; }
    .step-number { position: absolute; left: 0; top: 0; font-size: 24px; }
    .steps li:not(:last-child):after { left: 15px; top: 42px; bottom: -17px; height: auto; width: 1px; background: var(--border); }
    .steps h3 { margin-bottom: 8px; }
    .site-footer nav { gap: 20px; flex-wrap: wrap; }
}
@media (max-width: 480px) {
    .container { width: calc(100% - 32px); }
    .site-header { margin-top: 12px; padding: 12px 16px; }
    .hero-content { padding-top: 65px; }
    .eyebrow { font-size: 9px; letter-spacing: 3px; margin-bottom: 26px; }
    .hero h1 { font-size: clamp(42px, 10.7vw, 48px); line-height: 1.06; letter-spacing: -1.8px; max-width: 400px; margin-inline: auto; }
    .hero h1 br { display: none; }
    .hero h1 .gradient-text { display: block; margin-top: 5px; }
    .hero-description { font-size: 16px; line-height: 1.65; margin-bottom: 27px; max-width: 355px; }
    .desktop-break { display: none; }
    .hero .button { width: 100%; max-width: 350px; padding-inline: 16px; font-size: 16px; gap: 10px; }
    .button-caption { font-size: 8px; letter-spacing: 2px; margin-top: 17px; margin-bottom: 30px; }
    .advantages { padding: 24px 4px; row-gap: 28px; }
    .advantages dt { font-size: 8px; letter-spacing: 1.5px; }
    .advantages dd { font-size: 21px; }
    .navigation { flex-direction: column; align-items: stretch; gap: 0; }
    .navigation a { padding: 13px 4px; }
    .navigation > a.active:after { right: auto; width: 30px; bottom: 5px; }
    h2 { font-size: 33px; letter-spacing: -1px; }
    .section-heading > p:last-child { font-size: 16px; }
    .contact p:not(.eyebrow) { font-size: 16px; }
    .contact .button { font-size: 16px; padding-inline: 20px; }
    .site-footer { align-items: flex-start; }
    .site-footer nav { width: 100%; gap: 18px; font-size: 13px; }
    .copyright { font-size: 11px; line-height: 1.7; }
}
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *:before, *:after { transition: none !important; animation: none !important; }
    .button:hover { transform: none; }
}