*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #1a1a2e;
  --surface: #16213e;
  --surface2: #0f3460;
  --accent: #e94560;
  --text: #eaeaea;
  --text-muted: #8888aa;
  --green: #4caf50;
  --red: #e94560;
  --yellow: #ffc107;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, sans-serif;
  min-height: 100vh;
}

h1, h2, h3 { font-weight: 700; }

a { color: var(--accent); text-decoration: none; }

button {
  cursor: pointer;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  transition: opacity 0.15s, transform 0.1s;
}
button:active { transform: scale(0.97); }
button:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }