:root {
  color-scheme: light;
  --bg: #f5f5f2;
  --surface: #ffffff;
  --ink: #161714;
  --muted: #6b6d66;
  --line: #dedfd8;
  --accent: #2481cc;
  --accent-hover: #1d6dab;
}

* { box-sizing: border-box; }

body {
  min-height: 100vh;
  margin: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.switcher {
  width: min(100%, 420px);
  text-align: center;
}

.language-switch {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-bottom: 24px;
}

.language-switch button {
  min-width: 46px;
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  color: var(--muted);
  font: inherit;
  font-size: 13px;
  font-weight: 750;
  cursor: pointer;
}

.language-switch button[aria-pressed="true"] {
  border-color: var(--ink);
  background: var(--ink);
  color: white;
}

.language-switch button:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent), white 45%);
  outline-offset: 2px;
}

.mark {
  width: 54px;
  height: 54px;
  margin: 0 auto 20px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: var(--ink);
  color: white;
  font-size: 24px;
  font-weight: 750;
}

h1 {
  margin: 0;
  font-size: clamp(26px, 7vw, 34px);
  line-height: 1.1;
  letter-spacing: -0.035em;
}

p {
  margin: 10px 0 26px;
  color: var(--muted);
  font-size: 15px;
}

.links {
  display: grid;
  gap: 12px;
}

.bot-link {
  min-height: 58px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 15px 20px;
  border-radius: 14px;
  background: var(--accent);
  color: white;
  font-size: 17px;
  font-weight: 700;
  text-decoration: none;
  transition: background-color 140ms ease, transform 140ms ease;
}

.bot-link:hover { background: var(--accent-hover); }
.bot-link:active { transform: scale(.985); }
.bot-link:focus-visible { outline: 3px solid color-mix(in srgb, var(--accent), white 45%); outline-offset: 3px; }

.loading,
.error {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  color: var(--muted);
}

@media (prefers-reduced-motion: reduce) {
  .bot-link { transition: none; }
}