/* Reset, body, типографика, утилиты */
* {
  margin: 0;
  padding: 0;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

html {
  overflow-x: hidden;
  width: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  background-attachment: fixed;
  min-height: 100vh;
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 14px;
  position: relative;
  overflow-x: hidden;
  width: 100%;
  max-width: 100%;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(120, 119, 198, 0.3), transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(255, 119, 198, 0.3), transparent 50%),
    radial-gradient(circle at 40% 20%, rgba(120, 219, 255, 0.2), transparent 50%);
  pointer-events: none;
  z-index: 0;
}

.screen {
  display: none;
  position: relative;
  z-index: 1;
}

.screen.active {
  display: block;
}

.muted {
  color: var(--text-muted);
  font-size: 12px;
}

code {
  background: var(--bg-tertiary);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: 'Courier New', monospace;
  font-size: 12px;
}

.hidden {
  display: none !important;
}

.text-center {
  text-align: center;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-tertiary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb {
  background: var(--text-muted);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}