/**
 * TryGC Core Application Shell Styles
 * Version: 20260814-shell-v4
 * Layout containment, fast rendering initialization, and UI baseline.
 */

:root {
  --gc-shell-max-w: 1800px;
  --gc-header-height: 64px;
}

html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

#root {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Box sizing baseline */
*, *::before, *::after {
  box-sizing: border-box;
}

/* Image & media display baseline */
img, svg, video, canvas {
  display: block;
}