@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 400;
  src: url("fonts/ibm_plex_sans_regular.ttf") format("truetype");
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 500;
  src: url("fonts/ibm_plex_sans_medium.ttf") format("truetype");
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 600;
  src: url("fonts/ibm_plex_sans_semibold.ttf") format("truetype");
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 700;
  src: url("fonts/ibm_plex_sans_bold.ttf") format("truetype");
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 400;
  src: url("fonts/ibm_plex_mono_regular.ttf") format("truetype");
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 500;
  src: url("fonts/ibm_plex_mono_medium.ttf") format("truetype");
  font-display: swap;
}

:root {
  color-scheme: dark;
  --bg: #0a0d12;
  --bg-soft: #0f1318;
  --surface: #141921;
  --surface-soft: #1a2029;
  --line: #1f2630;
  --line-strong: #2a3340;
  --text: #e4e9f0;
  --muted: #8b96a8;
  --muted-strong: #b8c2d0;
  --blue: #5eb3ff;
  --blue-dim: #3a7fc0;
  --brass: #d6b16a;
  --green: #6ee7a8;
  --radius: 8px;
  --sans: "IBM Plex Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Consolas, monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: var(--blue);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--text);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(10, 13, 18, 0.9);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.nav {
  width: min(1120px, calc(100vw - 40px));
  min-height: 68px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 500;
  text-decoration: none;
  text-transform: uppercase;
}

.brand-mark {
  width: 9px;
  height: 9px;
  border-radius: 2px;
  background: var(--blue);
  box-shadow: 0 0 0 3px rgba(94, 179, 255, 0.14);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
}

.nav-links a {
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 500;
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--text);
}

.container {
  width: min(1120px, calc(100vw - 40px));
  margin: 0 auto;
}

.hero {
  padding: 104px 0 36px;
}

.eyebrow,
.section-label,
.meta-line {
  color: var(--blue);
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 500;
  text-transform: uppercase;
}

.eyebrow {
  margin: 0 0 22px;
}

.hero h1,
.page-title,
.section-heading {
  margin: 0;
  color: var(--text);
  font-weight: 700;
  line-height: 1.08;
}

.hero h1 {
  max-width: 780px;
  font-size: 4.5rem;
}

.hero-lead {
  max-width: 660px;
  margin: 26px 0 0;
  color: var(--muted-strong);
  font-size: 1.2rem;
  line-height: 1.7;
  overflow-wrap: break-word;
}

.store-badges {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 34px;
}

.store-badge-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  line-height: 0;
}

.store-badge {
  width: auto;
  height: 54px;
  display: block;
}

.store-badge-google {
  height: 68px;
}

.store-badge-link:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 4px;
  border-radius: 6px;
}

.visual-band {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg-soft);
  padding: 34px 0;
}

.visual-band img {
  width: 100%;
  border-radius: var(--radius);
}

.section {
  padding: 84px 0;
}

.section + .section {
  border-top: 1px solid var(--line);
}

.section-label {
  margin: 0 0 14px;
}

.section-heading {
  max-width: 660px;
  font-size: 2.55rem;
}

.section-copy {
  max-width: 640px;
  margin: 18px 0 0;
  color: var(--muted-strong);
}

.feature-list {
  margin-top: 44px;
  border-top: 1px solid var(--line);
}

.feature-row {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 36px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.feature-row h3,
.legal-content h2 {
  margin: 0;
  color: var(--text);
  font-size: 1.1rem;
  line-height: 1.35;
}

.feature-row p,
.legal-content p,
.legal-content li {
  color: var(--muted-strong);
}

.feature-row p {
  margin: 0;
}

.audience-list {
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.audience-list li {
  padding: 18px 0;
  color: var(--muted-strong);
  border-bottom: 1px solid var(--line);
}

.notice-band {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg-soft);
}

.notice-band p {
  max-width: 840px;
  margin: 0 auto;
  padding: 34px 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.notice-band strong {
  color: var(--text);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 0;
}

.footer-inner {
  width: min(1120px, calc(100vw - 40px));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  color: var(--muted);
  font-size: 0.86rem;
}

.footer-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--muted);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--text);
}

.page-hero {
  padding: 86px 0 42px;
  border-bottom: 1px solid var(--line);
}

.page-title {
  max-width: 820px;
  font-size: 3rem;
}

.page-intro {
  max-width: 760px;
  margin: 22px 0 0;
  color: var(--muted-strong);
  font-size: 1.12rem;
}

.meta-line {
  margin: 24px 0 0;
  color: var(--muted);
}

.legal-content {
  max-width: 860px;
  padding: 54px 0 84px;
}

.legal-content h2 {
  margin-top: 34px;
}

.legal-content h2:first-child {
  margin-top: 0;
}

.legal-content p,
.legal-content ul {
  margin: 12px 0 0;
}

.legal-content ul {
  padding-left: 1.2rem;
}

.legal-content a {
  font-weight: 600;
}

@media (max-width: 820px) {
  body {
    font-size: 16px;
  }

  .nav,
  .container,
  .footer-inner {
    width: calc(100vw - 28px);
    max-width: 1120px;
  }

  .nav {
    min-height: 62px;
  }

  .nav-links {
    gap: 14px;
  }

  .nav-links a {
    font-size: 0.82rem;
  }

  .hero {
    padding: 72px 0 24px;
  }

  .hero h1 {
    font-size: 2.75rem;
  }

  .hero-lead {
    font-size: 1.03rem;
  }

  .section {
    padding: 58px 0;
  }

  .section-heading,
  .page-title {
    font-size: 2rem;
  }

  .feature-row {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .page-hero {
    padding: 62px 0 34px;
  }
}

@media (max-width: 560px) {
  .brand {
    font-size: 0.72rem;
  }

  .nav-links {
    display: none;
  }

  .hero h1 {
    font-size: 2.35rem;
  }

  .store-badges {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .store-badge {
    height: 50px;
  }

  .store-badge-google {
    height: 64px;
  }

  .visual-band {
    padding: 18px 0;
  }
}

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

  *,
  *::before,
  *::after {
    transition: none !important;
  }
}