:root {
  color-scheme: light dark;
  --background: #f7f7f5;
  --surface: #ffffff;
  --surface-raised: #f0f1f1;
  --ink: #090b0c;
  --muted: #62676d;
  --line: #d7dadd;
  --accent: #ff2d2d;
  --accent-pressed: #dd141c;
  --button-ink: #ffffff;
  --shadow: 0 24px 70px rgba(12, 14, 16, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--background);
}

body {
  min-width: 320px;
  min-height: 100%;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 50% 5%, rgba(255, 45, 45, 0.09), transparent 32rem),
    var(--background);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", Arial, sans-serif;
  font-synthesis: none;
  line-height: 1.35;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

.skip-link {
  position: fixed;
  top: -80px;
  left: 16px;
  z-index: 10;
  padding: 10px 14px;
  color: var(--button-ink);
  background: var(--accent);
  border-radius: 999px;
  font-weight: 750;
}

.skip-link:focus {
  top: max(16px, env(safe-area-inset-top));
}

.install-page {
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding:
    max(32px, env(safe-area-inset-top))
    max(20px, env(safe-area-inset-right))
    max(28px, env(safe-area-inset-bottom))
    max(20px, env(safe-area-inset-left));
}

.install-card {
  width: min(100%, 520px);
  padding: clamp(28px, 7vw, 48px);
  border: 1px solid var(--line);
  border-radius: 32px;
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 20px;
}

.app-icon {
  width: 96px;
  height: 96px;
  flex: 0 0 auto;
  border: 1px solid rgba(9, 11, 12, 0.1);
  border-radius: 22.5%;
  box-shadow: 0 12px 30px rgba(9, 11, 12, 0.13);
  object-fit: cover;
}

.eyebrow {
  margin: 0 0 5px;
  color: var(--accent);
  font-family: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, monospace;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.07em;
  line-height: 1.25;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(38px, 10vw, 56px);
  font-weight: 900;
  letter-spacing: -0.055em;
  line-height: 0.95;
}

.tagline {
  max-width: 410px;
  margin: 30px 0 0;
  color: var(--muted);
  font-size: clamp(19px, 5vw, 23px);
  font-weight: 570;
  letter-spacing: -0.025em;
  line-height: 1.4;
}

.browser-guide {
  margin-top: 34px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--surface-raised);
}

.browser-guide[hidden] {
  display: none;
}

.guide-heading {
  margin: 0 0 18px;
  color: var(--muted);
  font-family: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, monospace;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-align: center;
  text-transform: uppercase;
}

.steps {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  align-items: center;
  gap: 14px;
  font-size: 17px;
  letter-spacing: -0.015em;
}

.step-number {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  color: var(--surface);
  background: var(--ink);
  border-radius: 50%;
  font-size: 15px;
  font-weight: 850;
}

.more-icon {
  min-width: 46px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  margin-inline: 3px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--surface);
  vertical-align: middle;
}

.more-icon i {
  width: 4px;
  height: 4px;
  background: currentColor;
  border-radius: 50%;
}

.app-store-button {
  min-height: 60px;
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr) 20px;
  align-items: center;
  gap: 12px;
  margin-top: 24px;
  padding: 14px 18px;
  color: var(--button-ink);
  background: var(--accent);
  border-radius: 18px;
  box-shadow: 0 14px 34px rgba(255, 45, 45, 0.25);
  font-size: 16px;
  font-weight: 790;
  letter-spacing: -0.01em;
  text-align: center;
  text-decoration: none;
  transition: transform 160ms ease, background 160ms ease, box-shadow 160ms ease;
  -webkit-tap-highlight-color: transparent;
}

.app-store-button:hover {
  color: var(--button-ink);
  background: var(--accent-pressed);
  transform: translateY(-1px);
  box-shadow: 0 17px 38px rgba(255, 45, 45, 0.3);
}

.app-store-button:active {
  transform: scale(0.985);
}

.app-store-button-disabled {
  grid-template-columns: 24px minmax(0, 1fr);
  cursor: default;
  opacity: 0.68;
  pointer-events: none;
  box-shadow: none;
}

.app-store-button:focus-visible,
.footer-links a:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 38%, transparent);
  outline-offset: 4px;
}

.button-arrow {
  justify-self: end;
}

.compatibility {
  margin: 16px 0 0;
  color: var(--muted);
  font-family: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, monospace;
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.03em;
  text-align: center;
  text-transform: uppercase;
}

.footer-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 28px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 670;
}

.footer-links a {
  text-underline-offset: 3px;
}

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

@media (max-width: 520px) {
  .install-page {
    place-items: start center;
    padding-inline: 18px;
  }

  .install-card {
    padding: 28px 22px;
    border-radius: 26px;
  }

  .app-icon {
    width: 82px;
    height: 82px;
  }

  .brand-lockup {
    gap: 16px;
  }

  .browser-guide {
    padding: 22px 18px;
  }
}

@media (max-width: 360px) {
  .install-page {
    padding-inline: 12px;
  }

  .install-card {
    padding-inline: 18px;
  }

  .app-icon {
    width: 72px;
    height: 72px;
  }

  .steps li {
    font-size: 16px;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #101214;
    --surface: #171a1d;
    --surface-raised: #1e2226;
    --ink: #f7f7f5;
    --muted: #a9afb8;
    --line: #30353b;
    --accent: #ff2d2d;
    --accent-pressed: #ff4545;
    --button-ink: #ffffff;
    --shadow: 0 28px 80px rgba(0, 0, 0, 0.4);
  }

  body {
    background:
      radial-gradient(circle at 50% 5%, rgba(255, 45, 45, 0.13), transparent 32rem),
      var(--background);
  }

  .app-icon {
    border-color: rgba(255, 255, 255, 0.12);
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.35);
  }

  .step-number {
    color: #0c0e10;
    background: #f7f7f5;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}