/**
 * Base Styles
 * Reset, box-sizing, body defaults, scrollbar, and selection styling.
 */

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

html {
  font-size: 15px;
}

body {
  font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Arial', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 5px;
}

::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 3px;
}

/* Selection */
::selection {
  background: rgba(0, 136, 146, .2);
  color: var(--text);
}

/* Links */
a {
  color: var(--mm-topas);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Screen visibility helper */
.screen {
  display: none;
}

.screen.active {
  display: block;
}