:root {
  --bg: #f6f5f2;
  --surface: #ffffff;
  --text: #1b1b1f;
  --muted: #62626b;
  --line: rgba(20, 20, 30, 0.09);
  --shadow: 0 1px 2px rgba(20, 20, 30, 0.05), 0 8px 24px rgba(20, 20, 30, 0.06);
  --shadow-hover: 0 2px 4px rgba(20, 20, 30, 0.06), 0 16px 40px rgba(20, 20, 30, 0.12);
  --accent: #3b5bdb;
  --radius: 22px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111114;
    --surface: #1b1b20;
    --text: #ededf0;
    --muted: #a0a0ab;
    --line: rgba(255, 255, 255, 0.08);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-hover: 0 12px 36px rgba(0, 0, 0, 0.5);
  }
}

:root[data-lang="ru"] .en,
:root[data-lang="en"] .ru { display: none !important; }

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 "Manrope", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
svg { fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* top bar */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 20px 20px 0;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.01em;
  text-decoration: none;
}
.brand-logo { display: block; width: auto; height: 32px; }
.lang {
  display: inline-flex;
  padding: 3px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--line);
}
.lang button {
  border: 0;
  background: transparent;
  color: var(--muted);
  font: 700 13px/1 inherit;
  font-family: inherit;
  letter-spacing: 0.04em;
  padding: 8px 12px;
  border-radius: 999px;
  cursor: pointer;
}
.lang button:hover { color: var(--text); }
:root[data-lang="ru"] .lang [data-set-lang="ru"],
:root[data-lang="en"] .lang [data-set-lang="en"] {
  background: var(--text);
  color: var(--bg);
}

main {
  flex: 1;
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px;
}
.footer {
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  padding: 48px 20px 28px;
}

h1, h2 { letter-spacing: -0.02em; line-height: 1.15; }
.lead { color: var(--muted); font-size: 18px; margin: 8px 0 0; }

/* home */
.hero { padding: 64px 0 36px; }
.hero h1 { font-size: clamp(34px, 6vw, 52px); font-weight: 800; margin: 0; }

.tiles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.tile {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 24px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  text-decoration: none;
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.tile::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 120px;
  background: radial-gradient(120% 100% at 0% 0%, color-mix(in srgb, var(--accent) 22%, transparent), transparent 70%);
  pointer-events: none;
}
.tile:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.tile:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.tile .icon { position: relative; width: 80px; height: 80px; }
.tile-text { position: relative; display: flex; flex-direction: column; gap: 4px; padding-right: 32px; }
.tile-name { font-size: 22px; font-weight: 800; letter-spacing: -0.01em; }
.tile-text .ru, .tile-text .en { color: var(--muted); }
.tile .arrow {
  position: absolute;
  right: 22px;
  bottom: 24px;
  width: 22px;
  height: 22px;
  color: var(--accent);
  transition: transform 0.2s ease;
}
.tile:hover .arrow { transform: translateX(4px); }

.icon {
  display: block;
  border-radius: 22%;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
}

/* app page */
.back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 32px;
  color: var(--muted);
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
}
.back:hover { color: var(--text); }
.back svg { width: 18px; height: 18px; }

.app-hero {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 32px 0 8px;
}
.icon-lg { width: 128px; height: 128px; flex: none; }
.app-hero h1 { font-size: clamp(32px, 5vw, 44px); font-weight: 800; margin: 0; }

.stores { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }
.store {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 22px 12px 18px;
  border-radius: 14px;
  border: 1.5px solid color-mix(in srgb, var(--accent) 55%, transparent);
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.15s ease, filter 0.15s ease, background 0.15s ease;
}
.store:hover { transform: translateY(-1px); background: color-mix(in srgb, var(--accent) 10%, transparent); }
.store svg { width: 18px; height: 18px; color: var(--accent); stroke-width: 2.4; }
.store-main {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
  box-shadow: 0 6px 20px color-mix(in srgb, var(--accent) 35%, transparent);
}
.store-main:hover { background: var(--accent); filter: brightness(1.06); }
.store-main svg { color: #fff; fill: currentColor; stroke: none; }

.block {
  margin-top: 28px;
  padding: 28px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.block p { margin: 0; font-size: 17px; }
.block h2 { margin: 0 0 18px; font-size: 22px; }

.features {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 28px;
}
.features li { display: flex; align-items: flex-start; gap: 12px; }
.features svg {
  flex: none;
  width: 24px;
  height: 24px;
  padding: 4px;
  margin-top: 1px;
  border-radius: 8px;
  stroke-width: 2.6;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 14%, transparent);
}

.policy-link { margin: 28px 0 0; font-size: 15px; }
.policy-link a { color: var(--muted); text-underline-offset: 3px; }
.policy-link a:hover { color: var(--text); }

/* privacy policy */
.prose {
  margin-top: 24px;
  padding: 36px 40px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--line);
  overflow-wrap: anywhere;
}
.prose h1 { font-size: clamp(26px, 4vw, 34px); margin: 0 0 16px; }
.prose h2 { font-size: 21px; margin: 36px 0 10px; }
.prose h3 { font-size: 17px; margin: 26px 0 8px; }
.prose p, .prose li { color: var(--text); }
.prose ul, .prose ol { padding-left: 22px; }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 28px 0; }
.prose a { color: var(--accent); }
.prose code {
  font-size: 0.9em;
  padding: 1px 6px;
  border-radius: 6px;
  background: color-mix(in srgb, var(--text) 7%, transparent);
}
.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 15px;
  display: block;
  overflow-x: auto;
}
.prose th, .prose td {
  text-align: left;
  vertical-align: top;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
}
.prose th { font-weight: 700; }

@media (max-width: 800px) {
  .tiles { grid-template-columns: 1fr; gap: 14px; }
  .tile { flex-direction: row; align-items: center; padding: 18px; gap: 16px; }
  .tile::before { height: 100%; }
  .tile .icon { width: 64px; height: 64px; flex: none; }
  .tile-name { font-size: 19px; }
  .tile .arrow { position: static; flex: none; margin-left: auto; }
  .tile-text { padding-right: 0; }
  .hero { padding: 40px 0 24px; }
  .features { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .topbar, main { padding-left: 16px; padding-right: 16px; }
  .app-hero { flex-direction: column; align-items: flex-start; gap: 20px; }
  .icon-lg { width: 96px; height: 96px; }
  .block { padding: 22px 20px; }
  .prose { padding: 24px 18px; }
  .store { flex: 1 1 100%; }
}