:root {
  color-scheme: light;
  --paper: #f7f8fa;
  --ink: #171b24;
  --body: #535c6a;
  --blue: #0866d6;
  --blue-hover: #0457b9;
  --line: #dce1e8;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body { margin: 0; background: var(--paper); color: var(--ink); }
a { color: var(--blue); text-underline-offset: 4px; }
a:hover { text-decoration: underline; }
a:focus-visible { outline: 3px solid var(--blue); outline-offset: 5px; }
img { display: block; max-width: 100%; height: auto; }
h1, h2, h3, p, figure { margin: 0; }
h1, h2 { font-weight: 600; letter-spacing: -.055em; }
p { line-height: 1.65; }
.shell { width: min(1160px, calc(100% - 112px)); margin-inline: auto; }
.skip-link { position: fixed; top: 12px; left: 16px; z-index: 10; padding: 12px 18px; background: white; transform: translateY(-160%); border-radius: 8px; }
.skip-link:focus { transform: translateY(0); }

.site-header { position: relative; z-index: 1; background: rgba(247, 248, 250, .94); border-bottom: 1px solid var(--line); }
.navigation { min-height: 88px; display: flex; justify-content: space-between; align-items: center; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); font-size: 25px; font-weight: 650; letter-spacing: -.045em; text-decoration: none; }
.brand:hover { text-decoration: none; }
.navigation nav { display: flex; align-items: center; gap: 34px; }
.navigation nav a { min-height: 44px; display: inline-flex; align-items: center; gap: 9px; font-size: 14px; text-decoration: none; font-weight: 500; }
.navigation nav a:hover { text-decoration: underline; }
.nav-preview { color: var(--body); }

.hero { display: grid; grid-template-columns: 1.3fr .9fr; gap: 76px; align-items: center; padding-block: 76px 66px; }
.eyebrow { font-size: 12px; line-height: 1.4; font-weight: 650; text-transform: uppercase; letter-spacing: .12em; }
.hero h1 { font-size: clamp(48px, 5.6vw, 76px); line-height: 1.04; margin-top: 24px; }
.hero-description { color: var(--body); font-size: 19px; max-width: 450px; margin-top: 28px; letter-spacing: -.015em; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 22px; margin-top: 34px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 14px; min-height: 50px; padding: 13px 23px; border-radius: 100px; background: var(--blue); color: white; font-size: 15px; font-weight: 550; text-decoration: none; transition: background-color .15s ease; }
.button:hover { background: var(--blue-hover); text-decoration: none; }
.text-link { display: inline-flex; align-items: center; min-height: 44px; gap: 8px; font-size: 14px; font-weight: 500; text-decoration: none; }
.availability { color: var(--body); font-size: 12px; line-height: 1.65; margin-top: 24px; }
.product-preview { justify-self: center; width: min(100%, 304px); }
.phone-frame { background: #171b24; padding: 7px; border-radius: 44px; box-shadow: 0 23px 55px -18px rgba(23, 27, 36, .28); }
.app-screen { border-radius: 37px; background: #f1f2f7; }
.product-preview figcaption { font-size: 11px; line-height: 1.4; letter-spacing: .01em; color: var(--body); text-align: center; margin-top: 20px; }
.product-preview figcaption span { margin-inline: 4px; }

.features { background: white; padding-block: 102px 70px; scroll-margin-top: 24px; }
.section-intro { max-width: 570px; }
.section-intro h2 { font-size: clamp(35px, 3.7vw, 48px); line-height: 1.1; margin-top: 20px; }
.section-intro > p:last-child { font-size: 17px; color: var(--body); max-width: 450px; margin-top: 22px; }
.feature-list { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 36px; margin-top: 68px; }
.feature-number { display: block; font-size: 12px; font-weight: 550; color: var(--body); border-top: 1px solid var(--line); padding-top: 18px; }
.feature-list h3 { font-size: 19px; font-weight: 600; letter-spacing: -.025em; line-height: 1.3; margin-top: 25px; }
.feature-list p { font-size: 15px; line-height: 1.65; color: var(--body); margin-top: 12px; }
.details-note { margin-top: 58px; padding-top: 25px; border-top: 1px solid var(--line); display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.details-note p { color: var(--body); font-size: 12px; line-height: 1.7; }

.get-started { background: #141a25; color: white; padding-block: 82px 86px; }
.start-layout { display: grid; grid-template-columns: 1.4fr .8fr; align-items: center; gap: 70px; }
.get-started .eyebrow { color: #a9b4c6; }
.get-started h2 { font-size: clamp(36px, 4.2vw, 54px); line-height: 1.08; margin-top: 22px; }
.get-started h2 + p { max-width: 500px; color: #b9c3d2; font-size: 16px; margin-top: 22px; }
.start-action { justify-self: center; }
.start-action .button { background: #3c91ff; color: #08172a; }
.start-action .button:hover { background: #73b0ff; }
.start-action .button:focus-visible { outline-color: #c7e1ff; }
.start-action p { font-size: 12px; color: #b9c3d2; line-height: 1.65; margin-top: 18px; }

.site-footer { padding-block: 40px 30px; }
.footer-top { display: flex; justify-content: space-between; align-items: center; gap: 24px; }
.footer-brand { color: var(--ink); font-size: 14px; font-weight: 600; text-decoration: none; }
.footer-top nav { display: flex; flex-wrap: wrap; column-gap: 28px; row-gap: 0; }
.footer-top nav a { display: inline-flex; align-items: center; min-height: 44px; font-size: 12px; color: var(--body); text-decoration: none; }
.footer-top nav a:hover { text-decoration: underline; }
.site-footer > p { color: var(--body); font-size: 11px; margin-top: 20px; }

@media (min-width: 1440px) {
  .hero { gap: 100px; padding-block: 90px 80px; }
  .product-preview { width: 328px; }
}

@media (max-width: 1000px) {
  .shell { width: calc(100% - 72px); }
  .hero { gap: 36px; }
  .hero h1 { font-size: clamp(46px, 5.9vw, 64px); }
  .hero-description { font-size: 17px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 10px; }
  .product-preview { width: 272px; }
  .feature-list { gap: 24px; }
  .feature-list h3 { font-size: 17px; }
  .feature-list p { font-size: 14px; }
}

@media (max-width: 720px) {
  .shell { width: calc(100% - 48px); }
  .navigation { min-height: 76px; gap: 12px; }
  .brand { font-size: 22px; gap: 8px; }
  .brand img { width: 28px; height: 28px; }
  .navigation nav { gap: 16px; }
  .navigation nav a { font-size: 12px; }
  .nav-preview { display: none !important; }
  .hero { grid-template-columns: 1fr; gap: 48px; padding-block: 60px 54px; }
  .hero h1 { font-size: clamp(44px, 9.4vw, 64px); margin-top: 20px; }
  .hero-description { font-size: 17px; max-width: 450px; margin-top: 24px; }
  .hero-actions { flex-direction: row; align-items: center; gap: 12px 22px; margin-top: 28px; }
  .product-preview { width: min(74%, 282px); }
  .phone-frame { border-radius: 40px; padding: 6px; }
  .app-screen { border-radius: 34px; }
  .features { padding-block: 64px 48px; }
  .section-intro h2 { font-size: clamp(33px, 7vw, 44px); }
  .section-intro > p:last-child { font-size: 16px; }
  .feature-list { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 36px 24px; margin-top: 44px; }
  .feature-list h3 { font-size: 18px; margin-top: 18px; }
  .details-note { grid-template-columns: 1fr; gap: 16px; margin-top: 40px; }
  .get-started { padding-block: 62px 64px; }
  .start-layout { grid-template-columns: 1fr; gap: 30px; }
  .start-action { justify-self: start; }
  .start-action p br { display: none; }
  .footer-top { flex-direction: column; align-items: flex-start; gap: 10px; }
  .footer-top nav { column-gap: 24px; }
  .site-footer { padding-block: 30px 24px; }
  .site-footer > p { margin-top: 12px; }
}

@media (max-width: 380px) {
  .shell { width: calc(100% - 36px); }
  .hero h1 { font-size: 40px; }
  .hero-actions { flex-direction: column; align-items: flex-start; gap: 10px; }
  .feature-list { grid-template-columns: 1fr; gap: 28px; }
  .feature-list h3 { margin-top: 14px; }
  .feature-list p { max-width: 290px; }
  .product-preview { width: 82%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
}