:root {
  color-scheme: light;
  --bg: #ffffff;
  --card-bg: #f0f4f8;
  --text: #1c1c1c;
  --muted: #8b98a5;
  --accent-gradient: linear-gradient(135deg, #2aabee, #229ed9);
  --accent-gradient-hover: linear-gradient(135deg, #229ed9, #1e8fc4);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 20px;
  text-align: center;
}

h1 {
  font-size: 1.8rem;
  margin-bottom: 8px;
}

.subtitle {
  color: var(--muted);
  margin-bottom: 32px;
}

#buttons-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
}

.bot-button {
  display: block;
  padding: 20px 12px;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
}

.bot-button--active {
  background: var(--accent-gradient);
  color: #fff;
}

.bot-button--active:hover {
  background: var(--accent-gradient-hover);
}

.bot-button--inactive {
  background: var(--card-bg);
  color: var(--muted);
  cursor: not-allowed;
}

.bot-button--inactive .bot-button__note {
  display: block;
  font-size: 0.75rem;
  font-weight: 400;
  margin-top: 4px;
}