:root {
  --ink: #07152f;
  --blue: #2457e6;
  --blue-bright: #6d98ff;
  --paper: #f5f7fb;
  --white: #fff;
  --muted: #66728b;
  --line: rgba(7, 21, 47, .13);
  color-scheme: light;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--white); font-family: "Segoe UI", Arial, sans-serif; line-height: 1.55; }
a { color: inherit; text-decoration: none; }
img, video { max-width: 100%; }
.wrap { width: min(1180px, calc(100% - 48px)); margin-inline: auto; }
.skip { position: fixed; left: 16px; top: -100px; z-index: 100; background: var(--white); padding: 10px 14px; border-radius: 5px; box-shadow: 0 8px 30px #0003; }
.skip:focus { top: 12px; }
a:focus-visible, video:focus-visible { outline: 3px solid #8aacff; outline-offset: 4px; }

.site-header { position: sticky; top: 0; z-index: 20; background: rgba(255, 255, 255, .94); border-bottom: 1px solid var(--line); backdrop-filter: blur(14px); }
.header-inner { min-height: 86px; display: flex; justify-content: space-between; align-items: center; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 800; letter-spacing: .12em; }
.brand-mark { display: grid; place-items: center; width: 36px; aspect-ratio: 1; color: var(--white); background: var(--blue); border-radius: 8px 8px 8px 2px; font-size: 1.25rem; letter-spacing: 0; }
nav { display: flex; align-items: center; gap: 28px; font-size: .9rem; font-weight: 600; }
nav > a:not(.nav-login):hover { color: var(--blue); }
.nav-login { padding: 11px 16px; border: 1px solid var(--ink); border-radius: 7px; }
.nav-login:hover { background: var(--ink); color: var(--white); }

.hero { overflow: hidden; color: var(--white); background: var(--ink); }
.hero-grid { display: grid; grid-template-columns: 1.04fr .96fr; min-height: 690px; align-items: center; gap: 64px; padding-block: 72px; }
.eyebrow { margin: 0 0 24px; display: flex; align-items: center; gap: 10px; color: inherit; font-size: .72rem; font-weight: 700; letter-spacing: .16em; }
.eyebrow span { width: 7px; height: 7px; background: var(--blue-bright); border-radius: 50%; }
h1, h2 { margin: 0; letter-spacing: -.045em; line-height: 1.07; }
h1 { max-width: 760px; font-size: clamp(3rem, 5.35vw, 5.4rem); }
h1 em { font-style: normal; color: var(--blue-bright); }
.lead { max-width: 650px; margin: 30px 0 0; color: #c3cde2; font-size: 1.18rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 32px; min-height: 54px; padding: 0 22px; border: 1px solid transparent; border-radius: 7px; font-weight: 700; }
.button.primary { background: var(--blue); color: var(--white); }
.button.primary:hover { background: #3567ed; }
.button.ghost { border-color: #ffffff50; color: var(--white); }
.button.ghost:hover { background: #ffffff12; }
.hero-image { position: relative; margin: 0; }
.hero-image::before { content: ""; position: absolute; inset: -30px 40% 20% -30px; border: 1px solid #6d98ff55; border-radius: 50%; }
.hero-image img { position: relative; display: block; width: 100%; aspect-ratio: 4 / 5; object-fit: cover; border-radius: 80px 8px 80px 8px; filter: saturate(.76) contrast(1.04); }
.hero-image figcaption { margin-top: 8px; color: #93a2bf; font-size: .7rem; text-align: right; }

.proof-strip { border-bottom: 1px solid var(--line); }
.proof-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.proof-grid > div { padding: 28px 30px; display: flex; flex-direction: column; }
.proof-grid > div + div { border-left: 1px solid var(--line); }
.proof-grid strong { font-size: .98rem; }
.proof-grid span { color: var(--muted); font-size: .83rem; }

.section { padding-block: 110px; scroll-margin-top: 80px; }
.section-heading { display: grid; grid-template-columns: 1fr 1fr; align-items: end; gap: 50px; margin-bottom: 58px; }
.section-heading .eyebrow { grid-column: 1 / -1; margin-bottom: -18px; color: var(--blue); }
.section-heading h2, .workflow h2, .security h2, .final-cta h2 { font-size: clamp(2.35rem, 4.2vw, 4.2rem); }
.section-heading > p:last-child { margin: 0; color: var(--muted); font-size: 1.05rem; }
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-block: 1px solid var(--line); }
.feature-grid article { min-height: 280px; padding: 32px 28px; }
.feature-grid article + article { border-left: 1px solid var(--line); }
.feature-number { color: var(--blue); font-size: .74rem; font-weight: 700; }
.feature-grid h3 { margin: 70px 0 12px; font-size: 1.35rem; letter-spacing: -.02em; }
.feature-grid p { margin: 0; color: var(--muted); font-size: .92rem; }

.workflow { background: var(--paper); }
.workflow-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 100px; }
.workflow .eyebrow, .security .eyebrow { color: var(--blue); }
.workflow ol { margin: 0; padding: 0; list-style: none; }
.workflow li { display: grid; grid-template-columns: 52px 1fr; gap: 20px; padding: 26px 0; border-bottom: 1px solid var(--line); }
.workflow li > span { display: grid; place-items: center; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 50%; color: var(--blue); font-weight: 700; }
.workflow strong { font-size: 1.12rem; }
.workflow li p { margin: 4px 0 0; color: var(--muted); }

.security-grid { display: grid; grid-template-columns: .95fr 1.05fr; gap: 100px; align-items: start; }
.security-copy > p:last-child { max-width: 560px; color: var(--muted); font-size: 1.03rem; }
.security-list { border-top: 1px solid var(--line); }
.security-list > div { display: grid; grid-template-columns: 36px 1fr; gap: 16px; padding: 23px 0; border-bottom: 1px solid var(--line); }
.security-list span { display: grid; place-items: center; width: 28px; height: 28px; color: var(--white); background: var(--blue); border-radius: 50%; font-size: .78rem; }
.security-list p { margin: 2px 0 0; color: var(--muted); }
.security-list strong { color: var(--ink); }

.demo { color: var(--white); background: var(--ink); }
.section-heading.compact { display: block; max-width: 760px; }
.section-heading.compact .eyebrow { margin-bottom: 24px; color: #b8c7e3; }
.section-heading.compact p:last-child { margin-top: 20px; color: #b5c1d8; }
.demo video { display: block; width: 100%; aspect-ratio: 16 / 9; background: #0d2451; border: 1px solid #ffffff25; border-radius: 12px; }
.video-note { color: #9cabc6; font-size: .78rem; }

.final-cta { padding-block: 86px; color: var(--white); background: var(--blue); }
.final-cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 60px; }
.final-cta .eyebrow { margin-bottom: 18px; }
.button.light { flex: none; color: var(--ink); background: var(--white); }
.button.light:hover { background: #eaf0ff; }

footer { padding-block: 34px; color: #aeb9cf; background: var(--ink); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 28px; font-size: .78rem; }
.footer-inner p { margin: 0; }
.footer-inner .brand { color: var(--white); }

@media (max-width: 940px) {
  nav > a:not(.nav-login) { display: none; }
  .hero-grid { grid-template-columns: 1fr; gap: 50px; }
  .hero-image { max-width: 680px; }
  .hero-image img { aspect-ratio: 16 / 10; }
  .section-heading, .workflow-grid, .security-grid { grid-template-columns: 1fr; gap: 46px; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .feature-grid article:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .feature-grid article:nth-child(4) { border-top: 1px solid var(--line); }
}

@media (max-width: 650px) {
  .wrap { width: min(100% - 32px, 1180px); }
  .header-inner { min-height: 72px; }
  .brand { font-size: .9rem; }
  .brand-mark { width: 31px; }
  .nav-login { padding: 9px 11px; font-size: .78rem; }
  .hero-grid { min-height: auto; padding-block: 56px; }
  h1 { font-size: clamp(2.7rem, 12vw, 4rem); }
  .lead { font-size: 1rem; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-image img { aspect-ratio: 4 / 3; border-radius: 45px 6px 45px 6px; }
  .proof-grid, .feature-grid { grid-template-columns: 1fr; }
  .proof-grid > div + div, .feature-grid article + article { border-left: 0; border-top: 1px solid var(--line); }
  .feature-grid article { min-height: auto; }
  .feature-grid h3 { margin-top: 38px; }
  .section { padding-block: 76px; }
  .section-heading { display: block; }
  .section-heading .eyebrow { margin-bottom: 22px; }
  .section-heading > p:last-child { margin-top: 24px; }
  .workflow-grid, .security-grid { gap: 42px; }
  .final-cta-inner, .footer-inner { align-items: flex-start; flex-direction: column; }
  .final-cta-inner .button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }