* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: background-color 0.3s ease, color 0.3s ease;
}


#theme-switcher-button {
  padding: 0.6rem 1.2rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  background-color: #2563eb;
  color: white;
}

#theme-switcher-button:hover {
  background-color: #1e40af;
}


#theme-dropdown {
  margin-top: 0.5rem;
  padding: 0.4rem 0;
  list-style: none;
  border-radius: 6px;
  min-width: 160px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
  background-color: white;
}

#theme-dropdown li {
  padding: 0.5rem 1rem;
  cursor: pointer;
  font-size: 0.95rem;
}

#theme-dropdown li:hover {
  background-color: #f1f5f9;
}

/* live message */
#theme-message {
  margin-top: 1.2rem;
  font-size: 1rem;
  font-weight: 500;
}

/* Themes  */
.theme-light {
  background-color: #f8fafc;
  color: #0f172a;
}

.theme-dark {
  background-color: #0f172a;
  color: #e5e7eb;
}

.theme-dark #theme-dropdown {
  background-color: #1e293b;
  color: #e5e7eb;
}

.theme-dark #theme-dropdown li:hover {
  background-color: #334155;
}

.theme-blue {
  background-color: rgb(99, 99, 236);
}

.theme-red {
  background-color: rgb(126, 7, 7);
}