:root {
  color-scheme: light;
  --ink: #0b1220;
  --text: #172033;
  --muted: #5f6b7d;
  --line: #d9e1ea;
  --surface: #ffffff;
  --soft: #eef5fb;
  --blue: #1677ff;
  --blue-dark: #0a4aa1;
  --green: #16a064;
  --coral: #ef6b5f;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: #f7f9fc;
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  line-height: 1.75;
}

img {
  display: block;
  max-width: 100%;
}

figure {
  margin: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: fixed;
  z-index: 10;
  top: 0;
  left: 0;
  right: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(8, 13, 23, 0.72);
  backdrop-filter: blur(18px);
}

.nav {
  width: min(1120px, calc(100% - 32px));
  height: 64px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #ffffff;
  font-weight: 800;
}

.brand img {
  width: 34px;
  height: 34px;
  border-radius: 8px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 14px;
  font-weight: 700;
}

.nav-links a {
  padding: 6px 0;
}

.language-switch {
  min-width: 74px;
  padding: 7px 10px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 8px;
  text-align: center;
  background: rgba(255, 255, 255, 0.08);
}

.hero {
  min-height: 78vh;
  padding: 112px 0 72px;
  color: #ffffff;
  background-image:
    linear-gradient(90deg, rgba(5, 9, 16, 0.95) 0%, rgba(5, 9, 16, 0.78) 36%, rgba(5, 9, 16, 0.22) 100%),
    url("./assets/preview_cover.png");
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
}

.hero-inner,
.section-inner,
.page-main {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.hero-copy {
  max-width: 560px;
}

.app-icon {
  width: 82px;
  height: 82px;
  border-radius: 18px;
  margin-bottom: 22px;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.32);
}

.eyebrow {
  margin: 0 0 10px;
  color: #8ec5ff;
  font-weight: 800;
}

h1,
h2,
h3 {
  margin: 0;
  color: inherit;
  line-height: 1.32;
  letter-spacing: 0;
  font-feature-settings: "palt";
}

h1 {
  font-size: clamp(48px, 8vw, 86px);
  font-weight: 800;
}

.hero-lead {
  margin: 22px 0 0;
  color: rgba(255, 255, 255, 0.84);
  font-size: clamp(18px, 2.2vw, 23px);
  font-weight: 700;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-weight: 800;
}

.button.primary {
  color: #ffffff;
  background: var(--blue);
}

.button.secondary {
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.32);
  background: rgba(255, 255, 255, 0.08);
}

.hero-note {
  margin-top: 16px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 13px;
}

.section {
  padding: 72px 0;
}

.section.white {
  background: #ffffff;
}

.section.soft {
  background: var(--soft);
}

.section-title {
  display: grid;
  gap: 12px;
  max-width: 760px;
  margin-bottom: 32px;
}

.section-title h2,
.page-main h1 {
  color: var(--ink);
  font-size: clamp(30px, 5vw, 48px);
  font-weight: 760;
}

.section-title p,
.page-lead {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.feature {
  min-height: 188px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.feature-icon {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  background: transparent;
  font-size: 34px;
  line-height: 1;
  margin-bottom: 16px;
}

.feature:nth-child(2n) .feature-icon {
  background: transparent;
}

.feature:nth-child(3n) .feature-icon {
  background: transparent;
}

.feature h3 {
  color: var(--ink);
  font-size: 20px;
  font-weight: 760;
}

.feature p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 15px;
}

.screens {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  align-items: start;
}

.screen {
  overflow: hidden;
  border-radius: 8px;
  border: 1px solid rgba(11, 18, 32, 0.12);
  background: #05070a;
  box-shadow: 0 20px 48px rgba(11, 18, 32, 0.16);
}

.screen img {
  width: 100%;
  aspect-ratio: 1290 / 2796;
  object-fit: cover;
}

.flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  counter-reset: step;
}

.step {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  counter-increment: step;
}

.step::before {
  content: counter(step, decimal-leading-zero);
  display: block;
  color: var(--blue);
  font-weight: 900;
  margin-bottom: 10px;
}

.step h3 {
  color: var(--ink);
  font-size: 18px;
  font-weight: 760;
}

.step p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.support-band {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
  align-items: center;
  padding: 28px;
  border-radius: 8px;
  color: #ffffff;
  background: #101722;
}

.support-band p {
  color: rgba(255, 255, 255, 0.72);
}

.support-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.page-hero {
  padding: 112px 0 42px;
  color: #ffffff;
  background: #101722;
}

.page-hero .page-main h1,
.page-hero .page-lead {
  color: #ffffff;
}

.page-main {
  padding: 46px 0 80px;
}

.page-hero .page-main {
  padding: 0;
}

.content-section {
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
}

.content-section:first-child {
  padding-top: 0;
}

.content-section h2 {
  color: var(--ink);
  font-size: 24px;
  font-weight: 760;
}

.content-section h3 {
  margin-top: 20px;
  color: var(--ink);
  font-size: 18px;
  font-weight: 720;
}

.content-section p,
.content-section li {
  color: var(--muted);
}

.content-section a,
.inline-link {
  color: var(--blue-dark);
  font-weight: 800;
}

.footer {
  padding: 28px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  background: #ffffff;
  font-size: 14px;
}

.footer-inner {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.footer-links {
  display: flex;
  gap: 16px;
}

@media (max-width: 860px) {
  .nav-links {
    gap: 12px;
    font-size: 13px;
  }

  .hero {
    min-height: 82vh;
    background-position: 62% center;
  }

  .feature-grid,
  .flow,
  .support-band {
    grid-template-columns: 1fr;
  }

  .screens {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .support-links {
    justify-content: flex-start;
  }
}

@media (max-width: 560px) {
  .nav {
    width: min(100% - 24px, 1120px);
  }

  .brand span {
    display: none;
  }

  .hero-inner,
  .section-inner,
  .page-main,
  .footer-inner {
    width: min(100% - 24px, 1120px);
  }

  .hero {
    padding-top: 92px;
    background-image:
      linear-gradient(180deg, rgba(5, 9, 16, 0.9) 0%, rgba(5, 9, 16, 0.72) 52%, rgba(5, 9, 16, 0.92) 100%),
      url("./assets/preview_cover.png");
  }

  .hero-actions,
  .footer-inner,
  .footer-links {
    flex-direction: column;
    align-items: stretch;
  }

  .button {
    width: 100%;
  }
}