:root {
  --bg: #ffffff;
  --text: #1b1f23;
  --button-bg: #f2f4f7;
  --button-border: #d0d7de;
}

:root[data-theme="dark"] {
  --bg: #0d1117;
  --text: #e6edf3;
  --button-bg: #21262d;
  --button-border: #30363d;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-content: center;
  gap: 1rem;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: var(--bg);
  color: var(--text);
  transition: background-color 0.2s ease, color 0.2s ease;
}

.button-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

#theme-toggle,
.action-button {
  padding: 0.6rem 1rem;
  border: 1px solid var(--button-border);
  border-radius: 8px;
  background: var(--button-bg);
  color: var(--text);
  cursor: pointer;
  text-decoration: none;
  font: inherit;
}

.lotto-result {
  min-height: 1.5rem;
  font-size: 1.125rem;
  font-weight: 700;
}